Merge remote-tracking branch 'qatar/master'
authorMichael Niedermayer <michaelni@gmx.at>
Wed, 25 Apr 2012 20:01:59 +0000 (22:01 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Wed, 25 Apr 2012 21:17:41 +0000 (23:17 +0200)
* qatar/master:
  FATE: use updated reference for aac-latm_stereo_to_51
  avconv: use libavresample
  Add libavresample
  FATE: avoid channel mixing in lavf-dv_fmt

Conflicts:
Changelog
Makefile
cmdutils.c
configure
doc/APIchanges
ffmpeg.c
tests/lavf-regression.sh
tests/ref/lavf/dv_fmt
tests/ref/seek/lavf_dv

Merged-by: Michael Niedermayer <michaelni@gmx.at>
12 files changed:
1  2 
Changelog
Makefile
cmdutils.c
common.mak
configure
doc/APIchanges
ffmpeg.c
libavresample/utils.c
libavutil/x86/x86util.asm
tests/fate/aac.mak
tests/lavf-regression.sh
tests/ref/lavf/dv_fmt

diff --cc Changelog
+++ b/Changelog
@@@ -1,79 -1,45 +1,80 @@@
  Entries are sorted chronologically from oldest to youngest within each release,
  releases are sorted from youngest to oldest.
  
 -version <next>:
 -
 -- XWD encoder and decoder
 -- Support for fragmentation in the mov/mp4 muxer
 -- ISMV (Smooth Streaming) muxer
 +version next:
 +- v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
 +- setfield filter
  - CDXL demuxer and decoder
  - Apple ProRes encoder
 +- ffprobe -count_packets and -count_frames options
  - Sun Rasterfile Encoder
 -- remove libpostproc
  - ID3v2 attached pictures reading and writing
  - WMA Lossless decoder
 -- XBM encoder
 +- bluray protocol
 +- blackdetect filter
 +- libutvideo encoder wrapper (--enable-libutvideo)
 +- swapuv filter
 +- bbox filter
 +- XBM encoder and decoder
  - RealAudio Lossless decoder
  - ZeroCodec decoder
 -- drop support for avconv without libavfilter
 -- add libavresample audio conversion library
 -
 -
 -version 0.8:
 -
 +- tile video filter
 +- Metal Gear Solid: The Twin Snakes demuxer
 +- OpenEXR image decoder
 +- removelogo filter
 +- drop support for ffmpeg without libavfilter
 +- drawtext video filter: fontconfig support
 +- ffmpeg -benchmark_all option
 +- super2xsai filter ported from libmpcodecs
++- add libavresample audio conversion library for compatibility
 +
 +
 +version 0.10:
 +- Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
 +         CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
 +         CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
 +         CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
 +- v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
 +- SBaGen (SBG) binaural beats script demuxer
 +- OpenMG Audio muxer
 +- Timecode extraction in DV and MOV
 +- thumbnail video filter
 +- XML output in ffprobe
 +- asplit audio filter
 +- tinterlace video filter
 +- astreamsync audio filter
 +- amerge audio filter
 +- ISMV (Smooth Streaming) muxer
  - GSM audio parser
  - SMJPEG muxer
 -
 -
 -version 0.8_beta2:
 -
 +- XWD encoder and decoder
  - Automatic thread count based on detection number of (available) CPU cores
 -- Deprecate libpostproc. If desired, the switch --enable-postproc will
 -  enable it but it may be removed in a later Libav release.
 +- y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
 +- ffprobe -show_error option
 +- Avid 1:1 10-bit RGB Packer codec
 +- v308 Quicktime Uncompressed 4:4:4 encoder and decoder
 +- yuv4 libquicktime packed 4:2:0 encoder and decoder
 +- ffprobe -show_frames option
 +- silencedetect audio filter
 +- ffprobe -show_program_version, -show_library_versions, -show_versions options
  - rv34: frame-level multi-threading
  - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
 +- Improved PGS subtitle decoder
 +- dumpgraph option to lavfi device
 +- r210 and r10k encoders
 +- ffwavesynth decoder
 +- aviocat tool
 +- ffeval tool
  
  
 -version 0.8_beta1:
 +version 0.9:
  
 +- openal input device added
 +- boxblur filter added
  - BWF muxer
  - Flash Screen Video 2 decoder
 -- ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
 -- ffmpeg deprecated, added avconv, which is almost the same for now, except
 +- lavfi input device added
 +- added avconv, which is almost the same for now, except
  for a few incompatible changes in the options, which will hopefully make them
  easier to use. The changes are:
      * The options placement is now strictly enforced! While in theory the
diff --cc Makefile
+++ b/Makefile
@@@ -31,9 -71,8 +31,10 @@@ ALLMANPAGES = $(BASENAMES:%=%.1
  FFLIBS-$(CONFIG_AVDEVICE) += avdevice
  FFLIBS-$(CONFIG_AVFILTER) += avfilter
  FFLIBS-$(CONFIG_AVFORMAT) += avformat
+ FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
  FFLIBS-$(CONFIG_AVCODEC)  += avcodec
 +FFLIBS-$(CONFIG_POSTPROC) += postproc
 +FFLIBS-$(CONFIG_SWRESAMPLE)+= swresample
  FFLIBS-$(CONFIG_SWSCALE)  += swscale
  
  FFLIBS := avutil
diff --cc cmdutils.c
  #include "libavformat/avformat.h"
  #include "libavfilter/avfilter.h"
  #include "libavdevice/avdevice.h"
+ #include "libavresample/avresample.h"
  #include "libswscale/swscale.h"
 +#include "libswresample/swresample.h"
 +#if CONFIG_POSTPROC
 +#include "libpostproc/postprocess.h"
 +#endif
  #include "libavutil/avstring.h"
  #include "libavutil/mathematics.h"
  #include "libavutil/parseutils.h"
@@@ -633,7 -461,8 +634,8 @@@ static int warned_cfg = 0
          const char *indent = flags & INDENT? "  " : "";                 \
          if (flags & SHOW_VERSION) {                                     \
              unsigned int version = libname##_version();                 \
-             av_log(NULL, level, "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n",\
+             av_log(NULL, level,                                         \
 -                   "%slib%-10s %2d.%3d.%2d / %2d.%3d.%2d\n",            \
++                   "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n",            \
                     indent, #libname,                                    \
                     LIB##LIBNAME##_VERSION_MAJOR,                        \
                     LIB##LIBNAME##_VERSION_MINOR,                        \
@@@ -662,46 -491,29 +664,47 @@@ static void print_all_libs_info(int fla
      PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
      PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
      PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
 -    PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
++//    PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
      PRINT_LIB_INFO(swscale,  SWSCALE,  flags, level);
 +    PRINT_LIB_INFO(swresample,SWRESAMPLE,  flags, level);
 +#if CONFIG_POSTPROC
 +    PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
 +#endif
  }
  
 -void show_banner(void)
 +static void print_program_info(int flags, int level)
  {
 -    av_log(NULL, AV_LOG_INFO,
 -           "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
 -           program_name, program_birth_year, this_year);
 -    av_log(NULL, AV_LOG_INFO, "  built on %s %s with %s %s\n",
 -           __DATE__, __TIME__, CC_TYPE, CC_VERSION);
 -    av_log(NULL, AV_LOG_VERBOSE, "  configuration: " LIBAV_CONFIGURATION "\n");
 -    print_all_libs_info(INDENT|SHOW_CONFIG,  AV_LOG_VERBOSE);
 -    print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
 +    const char *indent = flags & INDENT? "  " : "";
 +
 +    av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
 +    if (flags & SHOW_COPYRIGHT)
 +        av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
 +               program_birth_year, this_year);
 +    av_log(NULL, level, "\n");
 +    av_log(NULL, level, "%sbuilt on %s %s with %s %s\n",
 +           indent, __DATE__, __TIME__, CC_TYPE, CC_VERSION);
 +    av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
  }
  
 -void show_version(void) {
 +void show_banner(int argc, char **argv, const OptionDef *options)
 +{
 +    int idx = locate_option(argc, argv, options, "version");
 +    if (idx)
 +        return;
 +
 +    print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
 +    print_all_libs_info(INDENT|SHOW_CONFIG,  AV_LOG_INFO);
 +    print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
 +}
 +
 +int opt_version(const char *opt, const char *arg) {
      av_log_set_callback(log_callback_help);
 -    printf("%s " LIBAV_VERSION "\n", program_name);
 +    print_program_info (0           , AV_LOG_INFO);
      print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
 +    return 0;
  }
  
 -void show_license(void)
 +int opt_license(const char *opt, const char *arg)
  {
      printf(
  #if CONFIG_NONFREE
diff --cc common.mak
@@@ -5,74 -5,6 +5,74 @@@
  # first so "all" becomes default target
  all: all-yes
  
- ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale swresample
 +ifndef SUBDIR
 +
 +ifndef V
 +Q      = @
 +ECHO   = printf "$(1)\t%s\n" $(2)
 +BRIEF  = CC CXX AS YASM AR LD HOSTCC STRIP CP
 +SILENT = DEPCC YASMDEP RM RANLIB
 +MSG    = $@
 +M      = @$(call ECHO,$(TAG),$@);
 +$(foreach VAR,$(BRIEF), \
 +    $(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
 +$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
 +$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
 +endif
 +
++ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
 +
 +# NASM requires -I path terminated with /
 +IFLAGS     := -I. -I$(SRC_PATH)/
 +CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
 +CFLAGS     += $(ECFLAGS)
 +CCFLAGS     = $(CFLAGS)
 +CXXFLAGS   := $(CFLAGS) $(CXXFLAGS)
 +YASMFLAGS  += $(IFLAGS) -I$(SRC_PATH)/libavutil/x86/ -Pconfig.asm
 +HOSTCFLAGS += $(IFLAGS)
 +LDFLAGS    := $(ALLFFLIBS:%=-Llib%) $(LDFLAGS)
 +
 +define COMPILE
 +       $($(1)DEP)
 +       $($(1)) $(CPPFLAGS) $($(1)FLAGS) $($(1)_DEPFLAGS) -c $($(1)_O) $<
 +endef
 +
 +COMPILE_C = $(call COMPILE,CC)
 +COMPILE_CXX = $(call COMPILE,CXX)
 +COMPILE_S = $(call COMPILE,AS)
 +
 +%.o: %.c
 +      $(COMPILE_C)
 +
 +%.o: %.cpp
 +      $(COMPILE_CXX)
 +
 +%.s: %.c
 +      $(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
 +
 +%.o: %.S
 +      $(COMPILE_S)
 +
 +%.ho: %.h
 +      $(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
 +
 +%.ver: %.v
 +      $(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
 +
 +%.c %.h: TAG = GEN
 +
 +# Dummy rule to stop make trying to rebuild removed or renamed headers
 +%.h:
 +      @:
 +
 +# Disable suffix rules.  Most of the builtin rules are suffix rules,
 +# so this saves some time on slow systems.
 +.SUFFIXES:
 +
 +# Do not delete intermediate files from chains of implicit rules
 +$(OBJS):
 +endif
 +
  include $(SRC_PATH)/arch.mak
  
  OBJS      += $(OBJS-yes)
diff --cc configure
+++ b/configure
@@@ -108,13 -108,11 +108,14 @@@ Component options
    --disable-avdevice       disable libavdevice build
    --disable-avcodec        disable libavcodec build
    --disable-avformat       disable libavformat build
 +  --disable-swresample     disable libswresample build
    --disable-swscale        disable libswscale build
 +  --disable-postproc       disable libpostproc build
    --disable-avfilter       disable video filter support [no]
+   --disable-avresample     disable libavresample build [no]
    --disable-pthreads       disable pthreads [auto]
    --disable-w32threads     disable Win32 threads [auto]
 +  --disable-os2threads     disable OS/2 threads [auto]
    --enable-x11grab         enable X11 grabbing [no]
    --disable-network        disable network support [no]
    --disable-dct            disable DCT code
@@@ -1013,9 -928,9 +1014,10 @@@ CONFIG_LIST=
      avdevice
      avfilter
      avformat
+     avresample
      avisynth
      bzlib
 +    crystalhd
      dct
      doc
      dwt
@@@ -1870,10 -1686,8 +1872,11 @@@ enable avcode
  enable avdevice
  enable avfilter
  enable avformat
+ enable avresample
  enable avutil
 +enable postproc
 +enable stripping
 +enable swresample
  enable swscale
  
  enable asm
@@@ -3724,9 -3388,8 +3727,10 @@@ get_version LIBAVCODEC  libavcodec/vers
  get_version LIBAVDEVICE libavdevice/avdevice.h
  get_version LIBAVFILTER libavfilter/version.h
  get_version LIBAVFORMAT libavformat/version.h
+ get_version LIBAVRESAMPLE libavresample/version.h
  get_version LIBAVUTIL   libavutil/avutil.h
 +get_version LIBPOSTPROC libpostproc/postprocess.h
 +get_version LIBSWRESAMPLE libswresample/swresample.h
  get_version LIBSWSCALE  libswscale/swscale.h
  
  cat > $TMPH <<EOF
@@@ -3852,22 -3503,10 +3856,23 @@@ Cflags: -I\${includedir
  EOF
  }
  
 -pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
 -pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
 -pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
 -pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
 -pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
 +libavfilter_pc_deps=""
 +enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
 +enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
 +enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
 +enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
 +enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
 +libavfilter_pc_deps=${libavfilter_pc_deps%, }
 +
 +libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
 +enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
 +
 +pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
 +pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
 +pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
 +pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
 +pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
 +pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
+ pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
 -pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
 +pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
 +pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
diff --cc doc/APIchanges
@@@ -2,26 -2,20 +2,30 @@@ Never assume the API of libav* to be st
  since the last major version increase.
  
  The last version increases were:
 -libavcodec:    2012-01-27
 -libavdevice:   2011-04-18
 -libavfilter:   2011-04-18
 -libavformat:   2012-01-27
 +libavcodec:  2012-01-27
 +libavdevice: 2011-04-18
 +libavfilter: 2011-04-18
 +libavformat: 2012-01-27
+ libavresample: 2012-xx-xx
 -libswscale:    2011-06-20
 -libavutil:     2011-04-18
 +libpostproc: 2011-04-18
 +libswscale:  2011-06-20
 +libavutil:   2011-04-18
  
  
  API changes, most recent first:
  
 +2012-04-20 - xxxxxxx - lavfi 2.70.100
 +  Add avfilter_unref_bufferp() to avfilter.h.
 +
 +2012-04-12 - xxxxxxx - lavfi 2.68.100
 +  Install libavfilter/asrc_abuffer.h public header.
 +
 +2012-03-26 - a67d9cf - lavfi 2.66.100
 +  Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
 +
+ 2012-xx-xx - xxxxxxx - lavr 0.0.0
+   Add libavresample audio conversion library
  2012-xx-xx - xxxxxxx - lavu 51.28.0 - audio_fifo.h
    Add audio FIFO functions:
      av_audio_fifo_free()
diff --cc ffmpeg.c
index cef7e42,0000000..6efa12c
mode 100644,000000..100644
--- /dev/null
+++ b/ffmpeg.c
@@@ -1,5890 -1,0 +1,5905 @@@
- #include "libavcodec/audioconvert.h"
 +/*
 + * Copyright (c) 2000-2003 Fabrice Bellard
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * multimedia converter based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include <ctype.h>
 +#include <string.h>
 +#include <math.h>
 +#include <stdlib.h>
 +#include <errno.h>
 +#include <signal.h>
 +#include <limits.h>
 +#include <unistd.h>
 +#include "libavformat/avformat.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libavutil/opt.h"
-                                   int nb_samples)
 +#include "libavutil/audioconvert.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.h"
 +#include "libavutil/colorspace.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/libm.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/timestamp.h"
 +#include "libavformat/os_support.h"
 +#include "libswresample/swresample.h"
 +
 +#include "libavformat/ffm.h" // not public API
 +
 +# include "libavfilter/avcodec.h"
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/avfiltergraph.h"
 +# include "libavfilter/buffersink.h"
 +# include "libavfilter/buffersrc.h"
 +# include "libavfilter/vsrc_buffer.h"
 +
 +#if HAVE_SYS_RESOURCE_H
 +#include <sys/types.h>
 +#include <sys/time.h>
 +#include <sys/resource.h>
 +#elif HAVE_GETPROCESSTIMES
 +#include <windows.h>
 +#endif
 +#if HAVE_GETPROCESSMEMORYINFO
 +#include <windows.h>
 +#include <psapi.h>
 +#endif
 +
 +#if HAVE_SYS_SELECT_H
 +#include <sys/select.h>
 +#endif
 +
 +#if HAVE_TERMIOS_H
 +#include <fcntl.h>
 +#include <sys/ioctl.h>
 +#include <sys/time.h>
 +#include <termios.h>
 +#elif HAVE_KBHIT
 +#include <conio.h>
 +#endif
 +#include <time.h>
 +
 +#include "cmdutils.h"
 +
 +#include "libavutil/avassert.h"
 +
 +#define VSYNC_AUTO       -1
 +#define VSYNC_PASSTHROUGH 0
 +#define VSYNC_CFR         1
 +#define VSYNC_VFR         2
 +#define VSYNC_DROP        0xff
 +
 +const char program_name[] = "ffmpeg";
 +const int program_birth_year = 2000;
 +
 +/* select an input stream for an output stream */
 +typedef struct StreamMap {
 +    int disabled;           /** 1 is this mapping is disabled by a negative map */
 +    int file_index;
 +    int stream_index;
 +    int sync_file_index;
 +    int sync_stream_index;
 +    char *linklabel;       /** name of an output link, for mapping lavfi outputs */
 +} StreamMap;
 +
 +typedef struct {
 +    int  file_idx,  stream_idx,  channel_idx; // input
 +    int ofile_idx, ostream_idx;               // output
 +} AudioChannelMap;
 +
 +static const OptionDef options[];
 +
 +#define MAX_STREAMS 1024    /* arbitrary sanity check value */
 +
 +static int frame_bits_per_raw_sample = 0;
 +static int video_discard = 0;
 +static int same_quant = 0;
 +static int do_deinterlace = 0;
 +static int intra_dc_precision = 8;
 +static int qp_hist = 0;
 +static int intra_only = 0;
 +static const char *video_codec_name    = NULL;
 +static const char *audio_codec_name    = NULL;
 +static const char *subtitle_codec_name = NULL;
 +
 +static int file_overwrite = 0;
 +static int no_file_overwrite = 0;
 +static int do_benchmark = 0;
 +static int do_benchmark_all = 0;
 +static int do_hex_dump = 0;
 +static int do_pkt_dump = 0;
 +static int do_psnr = 0;
 +static int do_pass = 0;
 +static const char *pass_logfilename_prefix;
 +static int video_sync_method = VSYNC_AUTO;
 +static int audio_sync_method = 0;
 +static float audio_drift_threshold = 0.1;
 +static int copy_ts = 0;
 +static int copy_tb = -1;
 +static int opt_shortest = 0;
 +static char *vstats_filename;
 +static FILE *vstats_file;
 +
 +static int audio_volume = 256;
 +
 +static int exit_on_error = 0;
 +static int using_stdin = 0;
 +static int run_as_daemon  = 0;
 +static volatile int received_nb_signals = 0;
 +static int64_t video_size = 0;
 +static int64_t audio_size = 0;
 +static int64_t extra_size = 0;
 +static int nb_frames_dup = 0;
 +static int nb_frames_drop = 0;
 +static int input_sync;
 +
 +static float dts_delta_threshold = 10;
 +static float dts_error_threshold = 3600*30;
 +
 +static int print_stats = 1;
 +static int debug_ts = 0;
 +static int current_time;
 +
 +static uint8_t *audio_buf;
 +static unsigned int allocated_audio_buf_size;
 +static uint8_t *async_buf;
 +static unsigned int allocated_async_buf_size;
 +
 +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 +
 +typedef struct InputFilter {
 +    AVFilterContext    *filter;
 +    struct InputStream *ist;
 +    struct FilterGraph *graph;
 +} InputFilter;
 +
 +typedef struct OutputFilter {
 +    AVFilterContext     *filter;
 +    struct OutputStream *ost;
 +    struct FilterGraph  *graph;
 +
 +    /* temporary storage until stream maps are processed */
 +    AVFilterInOut       *out_tmp;
 +} OutputFilter;
 +
 +typedef struct FilterGraph {
 +    int            index;
 +    const char    *graph_desc;
 +
 +    AVFilterGraph *graph;
 +
 +    InputFilter   **inputs;
 +    int          nb_inputs;
 +    OutputFilter **outputs;
 +    int         nb_outputs;
 +} FilterGraph;
 +
 +typedef struct FrameBuffer {
 +    uint8_t *base[4];
 +    uint8_t *data[4];
 +    int  linesize[4];
 +
 +    int h, w;
 +    enum PixelFormat pix_fmt;
 +
 +    int refcount;
 +    struct InputStream *ist;
 +    struct FrameBuffer *next;
 +} FrameBuffer;
 +
 +typedef struct InputStream {
 +    int file_index;
 +    AVStream *st;
 +    int discard;             /* true if stream data should be discarded */
 +    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
 +    AVCodec *dec;
 +    AVFrame *decoded_frame;
 +
 +    int64_t       start;     /* time when read started */
 +    /* predicted dts of the next packet read for this stream or (when there are
 +     * several frames in a packet) of the next frame in current packet */
 +    int64_t       next_dts;
 +    /* dts of the last packet read for this stream */
 +    int64_t       dts;
 +
 +    int64_t       next_pts;  ///< synthetic pts for the next decode frame
 +    int64_t       pts;       ///< current pts of the decoded frame
 +    double ts_scale;
 +    int is_start;            /* is 1 at the start and after a discontinuity */
 +    int saw_first_ts;
 +    int showed_multi_packet_warning;
 +    AVDictionary *opts;
 +
 +    int resample_height;
 +    int resample_width;
 +    int resample_pix_fmt;
 +
 +    /* a pool of free buffers for decoded data */
 +    FrameBuffer *buffer_pool;
 +    int dr1;
 +
 +    /* decoded data from this stream goes into all those filters
 +     * currently video only */
 +    InputFilter **filters;
 +    int        nb_filters;
 +} InputStream;
 +
 +typedef struct InputFile {
 +    AVFormatContext *ctx;
 +    int eof_reached;      /* true if eof reached */
 +    int ist_index;        /* index of first stream in input_streams */
 +    int buffer_size;      /* current total buffer size */
 +    int64_t ts_offset;
 +    int nb_streams;       /* number of stream that ffmpeg is aware of; may be different
 +                             from ctx.nb_streams if new streams appear during av_read_frame() */
 +    int rate_emu;
 +} InputFile;
 +
 +typedef struct OutputStream {
 +    int file_index;          /* file index */
 +    int index;               /* stream index in the output file */
 +    int source_index;        /* InputStream index */
 +    AVStream *st;            /* stream in the output file */
 +    int encoding_needed;     /* true if encoding needed for this stream */
 +    int frame_number;
 +    /* input pts and corresponding output pts
 +       for A/V sync */
 +    struct InputStream *sync_ist; /* input stream to sync against */
 +    int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
 +    AVBitStreamFilterContext *bitstream_filters;
 +    AVCodec *enc;
 +    int64_t max_frames;
 +    AVFrame *output_frame;
 +    AVFrame *filtered_frame;
 +
 +    /* video only */
 +    AVRational frame_rate;
 +    int force_fps;
 +    int top_field_first;
 +
 +    float frame_aspect_ratio;
 +    float last_quality;
 +
 +    /* forced key frames */
 +    int64_t *forced_kf_pts;
 +    int forced_kf_count;
 +    int forced_kf_index;
 +
 +    /* audio only */
 +    int audio_resample;
 +    int audio_channels_map[SWR_CH_MAX];  ///< list of the channels id to pick from the source stream
 +    int audio_channels_mapped;           ///< number of channels in audio_channels_map
 +    int resample_sample_fmt;
 +    int resample_channels;
++    uint64_t resample_channel_layout;
 +    int resample_sample_rate;
 +    float rematrix_volume;
 +    AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
 +    FILE *logfile;
 +
 +    SwrContext *swr;
 +
 +    OutputFilter *filter;
 +    char *avfilter;
 +
 +    int64_t sws_flags;
 +    int64_t swr_dither_method;
 +    double swr_dither_scale;
 +    AVDictionary *opts;
 +    int is_past_recording_time;
 +    int stream_copy;
 +    const char *attachment_filename;
 +    int copy_initial_nonkeyframes;
 +
 +    enum PixelFormat pix_fmts[2];
 +} OutputStream;
 +
 +
 +#if HAVE_TERMIOS_H
 +
 +/* init terminal so that we can grab keys */
 +static struct termios oldtty;
 +static int restore_tty;
 +#endif
 +
 +typedef struct OutputFile {
 +    AVFormatContext *ctx;
 +    AVDictionary *opts;
 +    int ost_index;       /* index of the first stream in output_streams */
 +    int64_t recording_time; /* desired length of the resulting file in microseconds */
 +    int64_t start_time;     /* start time in microseconds */
 +    uint64_t limit_filesize; /* filesize limit expressed in bytes */
 +} OutputFile;
 +
 +static InputStream **input_streams = NULL;
 +static int        nb_input_streams = 0;
 +static InputFile   **input_files   = NULL;
 +static int        nb_input_files   = 0;
 +
 +static OutputStream **output_streams = NULL;
 +static int         nb_output_streams = 0;
 +static OutputFile   **output_files   = NULL;
 +static int         nb_output_files   = 0;
 +
 +static FilterGraph **filtergraphs;
 +int               nb_filtergraphs;
 +
 +typedef struct OptionsContext {
 +    /* input/output options */
 +    int64_t start_time;
 +    const char *format;
 +
 +    SpecifierOpt *codec_names;
 +    int        nb_codec_names;
 +    SpecifierOpt *audio_channels;
 +    int        nb_audio_channels;
 +    SpecifierOpt *audio_sample_rate;
 +    int        nb_audio_sample_rate;
 +    SpecifierOpt *rematrix_volume;
 +    int        nb_rematrix_volume;
 +    SpecifierOpt *frame_rates;
 +    int        nb_frame_rates;
 +    SpecifierOpt *frame_sizes;
 +    int        nb_frame_sizes;
 +    SpecifierOpt *frame_pix_fmts;
 +    int        nb_frame_pix_fmts;
 +
 +    /* input options */
 +    int64_t input_ts_offset;
 +    int rate_emu;
 +
 +    SpecifierOpt *ts_scale;
 +    int        nb_ts_scale;
 +    SpecifierOpt *dump_attachment;
 +    int        nb_dump_attachment;
 +
 +    /* output options */
 +    StreamMap *stream_maps;
 +    int     nb_stream_maps;
 +    AudioChannelMap *audio_channel_maps; ///< one info entry per -map_channel
 +    int           nb_audio_channel_maps; ///< number of (valid) -map_channel settings
 +    int metadata_global_manual;
 +    int metadata_streams_manual;
 +    int metadata_chapters_manual;
 +    const char **attachments;
 +    int       nb_attachments;
 +
 +    int chapters_input_file;
 +
 +    int64_t recording_time;
 +    uint64_t limit_filesize;
 +    float mux_preload;
 +    float mux_max_delay;
 +
 +    int video_disable;
 +    int audio_disable;
 +    int subtitle_disable;
 +    int data_disable;
 +
 +    /* indexed by output file stream index */
 +    int   *streamid_map;
 +    int nb_streamid_map;
 +
 +    SpecifierOpt *metadata;
 +    int        nb_metadata;
 +    SpecifierOpt *max_frames;
 +    int        nb_max_frames;
 +    SpecifierOpt *bitstream_filters;
 +    int        nb_bitstream_filters;
 +    SpecifierOpt *codec_tags;
 +    int        nb_codec_tags;
 +    SpecifierOpt *sample_fmts;
 +    int        nb_sample_fmts;
 +    SpecifierOpt *qscale;
 +    int        nb_qscale;
 +    SpecifierOpt *forced_key_frames;
 +    int        nb_forced_key_frames;
 +    SpecifierOpt *force_fps;
 +    int        nb_force_fps;
 +    SpecifierOpt *frame_aspect_ratios;
 +    int        nb_frame_aspect_ratios;
 +    SpecifierOpt *rc_overrides;
 +    int        nb_rc_overrides;
 +    SpecifierOpt *intra_matrices;
 +    int        nb_intra_matrices;
 +    SpecifierOpt *inter_matrices;
 +    int        nb_inter_matrices;
 +    SpecifierOpt *top_field_first;
 +    int        nb_top_field_first;
 +    SpecifierOpt *metadata_map;
 +    int        nb_metadata_map;
 +    SpecifierOpt *presets;
 +    int        nb_presets;
 +    SpecifierOpt *copy_initial_nonkeyframes;
 +    int        nb_copy_initial_nonkeyframes;
 +    SpecifierOpt *filters;
 +    int        nb_filters;
 +} OptionsContext;
 +
 +#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
 +{\
 +    int i, ret;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
 +            outvar = o->name[i].u.type;\
 +        else if (ret < 0)\
 +            exit_program(1);\
 +    }\
 +}
 +
 +static int64_t getutime(void)
 +{
 +#if HAVE_GETRUSAGE
 +    struct rusage rusage;
 +
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
 +#elif HAVE_GETPROCESSTIMES
 +    HANDLE proc;
 +    FILETIME c, e, k, u;
 +    proc = GetCurrentProcess();
 +    GetProcessTimes(proc, &c, &e, &k, &u);
 +    return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
 +#else
 +    return av_gettime();
 +#endif
 +}
 +
 +static void update_benchmark(const char *fmt, ...)
 +{
 +    if (do_benchmark_all) {
 +        int64_t t = getutime();
 +        va_list va;
 +        char buf[1024];
 +
 +        if (fmt) {
 +            va_start(va, fmt);
 +            vsnprintf(buf, sizeof(buf), fmt, va);
 +            va_end(va);
 +            printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
 +        }
 +        current_time = t;
 +    }
 +}
 +
 +static void reset_options(OptionsContext *o, int is_input)
 +{
 +    const OptionDef *po = options;
 +    OptionsContext bak= *o;
 +    int i;
 +
 +    /* all OPT_SPEC and OPT_STRING can be freed in generic way */
 +    while (po->name) {
 +        void *dst = (uint8_t*)o + po->u.off;
 +
 +        if (po->flags & OPT_SPEC) {
 +            SpecifierOpt **so = dst;
 +            int i, *count = (int*)(so + 1);
 +            for (i = 0; i < *count; i++) {
 +                av_freep(&(*so)[i].specifier);
 +                if (po->flags & OPT_STRING)
 +                    av_freep(&(*so)[i].u.str);
 +            }
 +            av_freep(so);
 +            *count = 0;
 +        } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
 +            av_freep(dst);
 +        po++;
 +    }
 +
 +    for (i = 0; i < o->nb_stream_maps; i++)
 +        av_freep(&o->stream_maps[i].linklabel);
 +    av_freep(&o->stream_maps);
 +    av_freep(&o->audio_channel_maps);
 +    av_freep(&o->streamid_map);
 +
 +    memset(o, 0, sizeof(*o));
 +
 +    if(is_input) o->recording_time = bak.recording_time;
 +    else         o->recording_time = INT64_MAX;
 +    o->mux_max_delay  = 0.7;
 +    o->limit_filesize = UINT64_MAX;
 +    o->chapters_input_file = INT_MAX;
 +
 +    uninit_opts();
 +    init_opts();
 +}
 +
 +static int alloc_buffer(InputStream *ist, AVCodecContext *s, FrameBuffer **pbuf)
 +{
 +    FrameBuffer  *buf = av_mallocz(sizeof(*buf));
 +    int i, ret;
 +    const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
 +    int h_chroma_shift, v_chroma_shift;
 +    int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
 +    int w = s->width, h = s->height;
 +
 +    if (!buf)
 +        return AVERROR(ENOMEM);
 +
 +    if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
 +        w += 2*edge;
 +        h += 2*edge;
 +    }
 +
 +    avcodec_align_dimensions(s, &w, &h);
 +    if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
 +                              s->pix_fmt, 32)) < 0) {
 +        av_freep(&buf);
 +        return ret;
 +    }
 +    /* XXX this shouldn't be needed, but some tests break without this line
 +     * those decoders are buggy and need to be fixed.
 +     * the following tests fail:
 +     * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
 +     */
 +    memset(buf->base[0], 128, ret);
 +
 +    avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
 +    for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
 +        const int h_shift = i==0 ? 0 : h_chroma_shift;
 +        const int v_shift = i==0 ? 0 : v_chroma_shift;
 +        if ((s->flags & CODEC_FLAG_EMU_EDGE) || !buf->linesize[1])
 +            buf->data[i] = buf->base[i];
 +        else
 +            buf->data[i] = buf->base[i] +
 +                           FFALIGN((buf->linesize[i]*edge >> v_shift) +
 +                                   (pixel_size*edge >> h_shift), 32);
 +    }
 +    buf->w       = s->width;
 +    buf->h       = s->height;
 +    buf->pix_fmt = s->pix_fmt;
 +    buf->ist     = ist;
 +
 +    *pbuf = buf;
 +    return 0;
 +}
 +
 +static void free_buffer_pool(InputStream *ist)
 +{
 +    FrameBuffer *buf = ist->buffer_pool;
 +    while (buf) {
 +        ist->buffer_pool = buf->next;
 +        av_freep(&buf->base[0]);
 +        av_free(buf);
 +        buf = ist->buffer_pool;
 +    }
 +}
 +
 +static void unref_buffer(InputStream *ist, FrameBuffer *buf)
 +{
 +    av_assert0(buf->refcount > 0);
 +    buf->refcount--;
 +    if (!buf->refcount) {
 +        FrameBuffer *tmp;
 +        for(tmp= ist->buffer_pool; tmp; tmp= tmp->next)
 +            av_assert1(tmp != buf);
 +        buf->next = ist->buffer_pool;
 +        ist->buffer_pool = buf;
 +    }
 +}
 +
 +static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
 +{
 +    InputStream *ist = s->opaque;
 +    FrameBuffer *buf;
 +    int ret, i;
 +
 +    if(av_image_check_size(s->width, s->height, 0, s) || s->pix_fmt<0)
 +        return -1;
 +
 +    if (!ist->buffer_pool && (ret = alloc_buffer(ist, s, &ist->buffer_pool)) < 0)
 +        return ret;
 +
 +    buf              = ist->buffer_pool;
 +    ist->buffer_pool = buf->next;
 +    buf->next        = NULL;
 +    if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
 +        av_freep(&buf->base[0]);
 +        av_free(buf);
 +        if ((ret = alloc_buffer(ist, s, &buf)) < 0)
 +            return ret;
 +    }
 +    av_assert0(!buf->refcount);
 +    buf->refcount++;
 +
 +    frame->opaque        = buf;
 +    frame->type          = FF_BUFFER_TYPE_USER;
 +    frame->extended_data = frame->data;
 +    frame->pkt_pts       = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
 +    frame->width         = buf->w;
 +    frame->height        = buf->h;
 +    frame->format        = buf->pix_fmt;
 +    frame->sample_aspect_ratio = s->sample_aspect_ratio;
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
 +        frame->base[i]     = buf->base[i];  // XXX h264.c uses base though it shouldn't
 +        frame->data[i]     = buf->data[i];
 +        frame->linesize[i] = buf->linesize[i];
 +    }
 +
 +    return 0;
 +}
 +
 +static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
 +{
 +    InputStream *ist = s->opaque;
 +    FrameBuffer *buf = frame->opaque;
 +    int i;
 +
 +    if(frame->type!=FF_BUFFER_TYPE_USER)
 +        return avcodec_default_release_buffer(s, frame);
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
 +        frame->data[i] = NULL;
 +
 +    unref_buffer(ist, buf);
 +}
 +
 +static void filter_release_buffer(AVFilterBuffer *fb)
 +{
 +    FrameBuffer *buf = fb->priv;
 +    av_free(fb);
 +    unref_buffer(buf->ist, buf);
 +}
 +
 +static enum PixelFormat choose_pixel_fmt(AVStream *st, AVCodec *codec, enum PixelFormat target)
 +{
 +    if (codec && codec->pix_fmts) {
 +        const enum PixelFormat *p = codec->pix_fmts;
 +        int has_alpha= av_pix_fmt_descriptors[target].nb_components % 2 == 0;
 +        enum PixelFormat best= PIX_FMT_NONE;
 +        if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
 +            if (st->codec->codec_id == CODEC_ID_MJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
 +            } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
 +                                                 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
 +            }
 +        }
 +        for (; *p != PIX_FMT_NONE; p++) {
 +            best= avcodec_find_best_pix_fmt2(best, *p, target, has_alpha, NULL);
 +            if (*p == target)
 +                break;
 +        }
 +        if (*p == PIX_FMT_NONE) {
 +            if (target != PIX_FMT_NONE)
 +                av_log(NULL, AV_LOG_WARNING,
 +                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                       av_pix_fmt_descriptors[target].name,
 +                       codec->name,
 +                       av_pix_fmt_descriptors[best].name);
 +            return best;
 +        }
 +    }
 +    return target;
 +}
 +
 +static const enum PixelFormat *choose_pixel_fmts(OutputStream *ost)
 +{
 +    if (ost->st->codec->pix_fmt != PIX_FMT_NONE) {
 +        ost->pix_fmts[0] = choose_pixel_fmt(ost->st, ost->enc, ost->st->codec->pix_fmt);
 +        return ost->pix_fmts;
 +    } else if (ost->enc->pix_fmts) {
 +        if (ost->st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
 +            if (ost->st->codec->codec_id == CODEC_ID_MJPEG) {
 +                return (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
 +            } else if (ost->st->codec->codec_id == CODEC_ID_LJPEG) {
 +                return (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
 +                                                    PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
 +            }
 +        }
 +        return ost->enc->pix_fmts;
 +    } else
 +        return NULL;
 +}
 +
 +static int configure_video_filters(FilterGraph *fg)
 +{
 +    InputStream  *ist = fg->inputs[0]->ist;
 +    OutputStream *ost = fg->outputs[0]->ost;
 +    AVFilterContext *last_filter, *filter;
 +    /** filter graph containing all filters including input & output */
 +    AVCodecContext *codec = ost->st->codec;
 +    enum PixelFormat *pix_fmts = choose_pixel_fmts(ost);
 +    AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
 +    AVRational sample_aspect_ratio;
 +    char args[255];
 +    int ret;
 +
 +    avfilter_graph_free(&fg->graph);
 +    fg->graph = avfilter_graph_alloc();
 +    if (!fg->graph)
 +        return AVERROR(ENOMEM);
 +
 +    if (ist->st->sample_aspect_ratio.num) {
 +        sample_aspect_ratio = ist->st->sample_aspect_ratio;
 +    } else
 +        sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
 +
 +    snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d:flags=%d", ist->st->codec->width,
 +             ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
 +             sample_aspect_ratio.num, sample_aspect_ratio.den, SWS_BILINEAR + ((ist->st->codec->flags&CODEC_FLAG_BITEXACT) ? SWS_BITEXACT:0));
 +
 +    ret = avfilter_graph_create_filter(&fg->inputs[0]->filter,
 +                                       avfilter_get_by_name("buffer"),
 +                                       "src", args, NULL, fg->graph);
 +    if (ret < 0)
 +        return ret;
 +
 +#if FF_API_OLD_VSINK_API
 +    ret = avfilter_graph_create_filter(&fg->outputs[0]->filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, pix_fmts, fg->graph);
 +#else
 +    buffersink_params->pixel_fmts = pix_fmts;
 +    ret = avfilter_graph_create_filter(&fg->outputs[0]->filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, buffersink_params, fg->graph);
 +#endif
 +    av_freep(&buffersink_params);
 +
 +    if (ret < 0)
 +        return ret;
 +    last_filter = fg->inputs[0]->filter;
 +
 +    if (codec->width || codec->height) {
 +        snprintf(args, 255, "%d:%d:flags=0x%X",
 +                 codec->width,
 +                 codec->height,
 +                 (unsigned)ost->sws_flags);
 +        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
 +                                                NULL, args, NULL, fg->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
 +            return ret;
 +        last_filter = filter;
 +    }
 +
 +    snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
 +    fg->graph->scale_sws_opts = av_strdup(args);
 +
 +    if (ost->avfilter) {
 +        AVFilterInOut *outputs = avfilter_inout_alloc();
 +        AVFilterInOut *inputs  = avfilter_inout_alloc();
 +
 +        outputs->name    = av_strdup("in");
 +        outputs->filter_ctx = last_filter;
 +        outputs->pad_idx = 0;
 +        outputs->next    = NULL;
 +
 +        inputs->name    = av_strdup("out");
 +        inputs->filter_ctx = fg->outputs[0]->filter;
 +        inputs->pad_idx = 0;
 +        inputs->next    = NULL;
 +
 +        if ((ret = avfilter_graph_parse(fg->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
 +            return ret;
 +        av_freep(&ost->avfilter);
 +    } else {
 +        if ((ret = avfilter_link(last_filter, 0, fg->outputs[0]->filter, 0)) < 0)
 +            return ret;
 +    }
 +
 +    if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
 +        return ret;
 +
 +    ost->filter = fg->outputs[0];
 +
 +    return 0;
 +}
 +
 +static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
 +{
 +    FilterGraph *fg = av_mallocz(sizeof(*fg));
 +
 +    if (!fg)
 +        exit_program(1);
 +    fg->index = nb_filtergraphs;
 +
 +    fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
 +                             fg->nb_outputs + 1);
 +    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
 +        exit_program(1);
 +    fg->outputs[0]->ost   = ost;
 +    fg->outputs[0]->graph = fg;
 +
 +    fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
 +                            fg->nb_inputs + 1);
 +    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
 +        exit_program(1);
 +    fg->inputs[0]->ist   = ist;
 +    fg->inputs[0]->graph = fg;
 +
 +    ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
 +                              &ist->nb_filters, ist->nb_filters + 1);
 +    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
 +
 +    filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
 +                              &nb_filtergraphs, nb_filtergraphs + 1);
 +    filtergraphs[nb_filtergraphs - 1] = fg;
 +
 +    return fg;
 +}
 +
 +static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
 +{
 +    InputStream *ist;
 +    enum AVMediaType type = in->filter_ctx->input_pads[in->pad_idx].type;
 +    int i;
 +
 +    // TODO: support other filter types
 +    if (type != AVMEDIA_TYPE_VIDEO) {
 +        av_log(NULL, AV_LOG_FATAL, "Only video filters supported currently.\n");
 +        exit_program(1);
 +    }
 +
 +    if (in->name) {
 +        AVFormatContext *s;
 +        AVStream       *st = NULL;
 +        char *p;
 +        int file_idx = strtol(in->name, &p, 0);
 +
 +        if (file_idx < 0 || file_idx >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
 +                   file_idx, fg->graph_desc);
 +            exit_program(1);
 +        }
 +        s = input_files[file_idx]->ctx;
 +
 +        for (i = 0; i < s->nb_streams; i++) {
 +            if (s->streams[i]->codec->codec_type != type)
 +                continue;
 +            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
 +                st = s->streams[i];
 +                break;
 +            }
 +        }
 +        if (!st) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
 +                   "matches no streams.\n", p, fg->graph_desc);
 +            exit_program(1);
 +        }
 +        ist = input_streams[input_files[file_idx]->ist_index + st->index];
 +    } else {
 +        /* find the first unused stream of corresponding type */
 +        for (i = 0; i < nb_input_streams; i++) {
 +            ist = input_streams[i];
 +            if (ist->st->codec->codec_type == type && ist->discard)
 +                break;
 +        }
 +        if (i == nb_input_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
 +                   "unlabeled input pad %d on filter %s", in->pad_idx,
 +                   in->filter_ctx->name);
 +            exit_program(1);
 +        }
 +    }
 +    ist->discard         = 0;
 +    ist->decoding_needed = 1;
 +    ist->st->discard = AVDISCARD_NONE;
 +
 +    fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
 +                            &fg->nb_inputs, fg->nb_inputs + 1);
 +    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
 +        exit_program(1);
 +    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
 +    fg->inputs[fg->nb_inputs - 1]->graph = fg;
 +
 +    ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
 +                              &ist->nb_filters, ist->nb_filters + 1);
 +    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
 +}
 +
 +static int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 +{
 +    AVCodecContext *codec = ofilter->ost->st->codec;
 +    AVFilterContext *last_filter = out->filter_ctx;
 +    int pad_idx = out->pad_idx;
 +    int ret;
 +    enum PixelFormat *pix_fmts = choose_pixel_fmts(ofilter->ost);
 +    AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
 +
 +#if FF_API_OLD_VSINK_API
 +    ret = avfilter_graph_create_filter(&ofilter->filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, pix_fmts, fg->graph);
 +#else
 +    buffersink_params->pixel_fmts = pix_fmts;
 +    ret = avfilter_graph_create_filter(&ofilter->filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, buffersink_params, fg->graph);
 +#endif
 +    av_freep(&buffersink_params);
 +
 +    if (ret < 0)
 +        return ret;
 +
 +    if (codec->width || codec->height) {
 +        char args[255];
 +        snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
 +                 codec->width,
 +                 codec->height,
 +                 (unsigned)ofilter->ost->sws_flags);
 +        if ((ret = avfilter_graph_create_filter(&last_filter, avfilter_get_by_name("scale"),
 +                                                NULL, args, NULL, fg->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(out->filter_ctx, out->pad_idx, last_filter, 0)) < 0)
 +            return ret;
 +        pad_idx = 0;
 +    }
 +
 +    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
 +        return ret;
 +
 +    return 0;
 +}
 +
 +static int configure_complex_filter(FilterGraph *fg)
 +{
 +    AVFilterInOut *inputs, *outputs, *cur;
 +    int ret, i, init = !fg->graph;
 +
 +    avfilter_graph_free(&fg->graph);
 +    if (!(fg->graph = avfilter_graph_alloc()))
 +        return AVERROR(ENOMEM);
 +
 +    if ((ret = avfilter_graph_parse2(fg->graph, fg->graph_desc, &inputs, &outputs)) < 0)
 +        return ret;
 +
 +    for (cur = inputs; init && cur; cur = cur->next)
 +        init_input_filter(fg, cur);
 +
 +    for (cur = inputs, i = 0; cur; cur = cur->next, i++) {
 +        InputFilter *ifilter = fg->inputs[i];
 +        InputStream     *ist = ifilter->ist;
 +        AVRational       sar;
 +        char            args[255];
 +
 +        sar = ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
 +                                                 ist->st->codec->sample_aspect_ratio;
 +        snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
 +                 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
 +                 sar.num, sar.den);
 +
 +        if ((ret = avfilter_graph_create_filter(&ifilter->filter,
 +                                                avfilter_get_by_name("buffer"), cur->name,
 +                                                args, NULL, fg->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(ifilter->filter, 0,
 +                                 cur->filter_ctx, cur->pad_idx)) < 0)
 +            return ret;
 +    }
 +    avfilter_inout_free(&inputs);
 +
 +    if (!init) {
 +        /* we already know the mappings between lavfi outputs and output streams,
 +         * so we can finish the setup */
 +        for (cur = outputs, i = 0; cur; cur = cur->next, i++)
 +            configure_output_filter(fg, fg->outputs[i], cur);
 +        avfilter_inout_free(&outputs);
 +
 +        if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
 +            return ret;
 +    } else {
 +        /* wait until output mappings are processed */
 +        for (cur = outputs; cur;) {
 +            fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
 +                                     &fg->nb_outputs, fg->nb_outputs + 1);
 +            if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
 +                exit_program(1);
 +            fg->outputs[fg->nb_outputs - 1]->graph   = fg;
 +            fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
 +            cur = cur->next;
 +            fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static int configure_complex_filters(void)
 +{
 +    int i, ret = 0;
 +
 +    for (i = 0; i < nb_filtergraphs; i++)
 +        if (!filtergraphs[i]->graph &&
 +            (ret = configure_complex_filter(filtergraphs[i])) < 0)
 +            return ret;
 +    return 0;
 +}
 +
 +static int configure_filtergraph(FilterGraph *fg)
 +{
 +    return fg->graph_desc ? configure_complex_filter(fg) : configure_video_filters(fg);
 +}
 +
 +static int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
 +{
 +    int i;
 +    for (i = 0; i < fg->nb_inputs; i++)
 +        if (fg->inputs[i]->ist == ist)
 +            return 1;
 +    return 0;
 +}
 +
 +static void term_exit(void)
 +{
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +#if HAVE_TERMIOS_H
 +    if(restore_tty)
 +        tcsetattr (0, TCSANOW, &oldtty);
 +#endif
 +}
 +
 +static volatile int received_sigterm = 0;
 +
 +static void sigterm_handler(int sig)
 +{
 +    received_sigterm = sig;
 +    received_nb_signals++;
 +    term_exit();
 +    if(received_nb_signals > 3)
 +        exit(123);
 +}
 +
 +static void term_init(void)
 +{
 +#if HAVE_TERMIOS_H
 +    if(!run_as_daemon){
 +    struct termios tty;
 +
 +    if (tcgetattr (0, &tty) == 0) {
 +    oldtty = tty;
 +    restore_tty = 1;
 +    atexit(term_exit);
 +
 +    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
 +                          |INLCR|IGNCR|ICRNL|IXON);
 +    tty.c_oflag |= OPOST;
 +    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
 +    tty.c_cflag &= ~(CSIZE|PARENB);
 +    tty.c_cflag |= CS8;
 +    tty.c_cc[VMIN] = 1;
 +    tty.c_cc[VTIME] = 0;
 +
 +    tcsetattr (0, TCSANOW, &tty);
 +    }
 +    signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
 +    }
 +#endif
 +    avformat_network_deinit();
 +
 +    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
 +    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 +#ifdef SIGXCPU
 +    signal(SIGXCPU, sigterm_handler);
 +#endif
 +}
 +
 +/* read a key without blocking */
 +static int read_key(void)
 +{
 +    unsigned char ch;
 +#if HAVE_TERMIOS_H
 +    int n = 1;
 +    struct timeval tv;
 +    fd_set rfds;
 +
 +    FD_ZERO(&rfds);
 +    FD_SET(0, &rfds);
 +    tv.tv_sec = 0;
 +    tv.tv_usec = 0;
 +    n = select(1, &rfds, NULL, NULL, &tv);
 +    if (n > 0) {
 +        n = read(0, &ch, 1);
 +        if (n == 1)
 +            return ch;
 +
 +        return n;
 +    }
 +#elif HAVE_KBHIT
 +#    if HAVE_PEEKNAMEDPIPE
 +    static int is_pipe;
 +    static HANDLE input_handle;
 +    DWORD dw, nchars;
 +    if(!input_handle){
 +        input_handle = GetStdHandle(STD_INPUT_HANDLE);
 +        is_pipe = !GetConsoleMode(input_handle, &dw);
 +    }
 +
 +    if (stdin->_cnt > 0) {
 +        read(0, &ch, 1);
 +        return ch;
 +    }
 +    if (is_pipe) {
 +        /* When running under a GUI, you will end here. */
 +        if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
 +            return -1;
 +        //Read it
 +        if(nchars != 0) {
 +            read(0, &ch, 1);
 +            return ch;
 +        }else{
 +            return -1;
 +        }
 +    }
 +#    endif
 +    if(kbhit())
 +        return(getch());
 +#endif
 +    return -1;
 +}
 +
 +static int decode_interrupt_cb(void *ctx)
 +{
 +    return received_nb_signals > 1;
 +}
 +
 +static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 +
 +void av_noreturn exit_program(int ret)
 +{
 +    int i, j;
 +
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        avfilter_graph_free(&filtergraphs[i]->graph);
 +        for (j = 0; j < filtergraphs[i]->nb_inputs; j++)
 +            av_freep(&filtergraphs[i]->inputs[j]);
 +        av_freep(&filtergraphs[i]->inputs);
 +        for (j = 0; j < filtergraphs[i]->nb_outputs; j++)
 +            av_freep(&filtergraphs[i]->outputs[j]);
 +        av_freep(&filtergraphs[i]->outputs);
 +        av_freep(&filtergraphs[i]);
 +    }
 +    av_freep(&filtergraphs);
 +
 +    /* close files */
 +    for (i = 0; i < nb_output_files; i++) {
 +        AVFormatContext *s = output_files[i]->ctx;
 +        if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
 +            avio_close(s->pb);
 +        avformat_free_context(s);
 +        av_dict_free(&output_files[i]->opts);
 +        av_freep(&output_files[i]);
 +    }
 +    for (i = 0; i < nb_output_streams; i++) {
 +        AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
 +        while (bsfc) {
 +            AVBitStreamFilterContext *next = bsfc->next;
 +            av_bitstream_filter_close(bsfc);
 +            bsfc = next;
 +        }
 +        output_streams[i]->bitstream_filters = NULL;
 +
 +        if (output_streams[i]->output_frame) {
 +            AVFrame *frame = output_streams[i]->output_frame;
 +            if (frame->extended_data != frame->data)
 +                av_freep(&frame->extended_data);
 +            av_freep(&frame);
 +        }
 +        av_freep(&output_streams[i]->filtered_frame);
 +        av_freep(&output_streams[i]);
 +    }
 +    for (i = 0; i < nb_input_files; i++) {
 +        avformat_close_input(&input_files[i]->ctx);
 +        av_freep(&input_files[i]);
 +    }
 +    for (i = 0; i < nb_input_streams; i++) {
 +        av_freep(&input_streams[i]->decoded_frame);
 +        av_dict_free(&input_streams[i]->opts);
 +        free_buffer_pool(input_streams[i]);
 +        av_freep(&input_streams[i]->filters);
 +        av_freep(&input_streams[i]);
 +    }
 +
 +    if (vstats_file)
 +        fclose(vstats_file);
 +    av_free(vstats_filename);
 +
 +    av_freep(&input_streams);
 +    av_freep(&input_files);
 +    av_freep(&output_streams);
 +    av_freep(&output_files);
 +
 +    uninit_opts();
 +    av_freep(&audio_buf);
 +    allocated_audio_buf_size = 0;
 +    av_freep(&async_buf);
 +    allocated_async_buf_size = 0;
 +
 +    avfilter_uninit();
 +    avformat_network_deinit();
 +
 +    if (received_sigterm) {
 +        av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
 +               (int) received_sigterm);
 +        exit (255);
 +    }
 +
 +    exit(ret); /* not all OS-es handle main() return value */
 +}
 +
 +static void assert_avoptions(AVDictionary *m)
 +{
 +    AVDictionaryEntry *t;
 +    if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +        av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
 +        exit_program(1);
 +    }
 +}
 +
 +static void assert_codec_experimental(AVCodecContext *c, int encoder)
 +{
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +    if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
 +        c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
 +        av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
 +                "results.\nAdd '-strict experimental' if you want to use it.\n",
 +                codec_string, c->codec->name);
 +        codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
 +        if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
 +            av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
 +                   codec_string, codec->name);
 +        exit_program(1);
 +    }
 +}
 +
 +static void choose_sample_fmt(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->sample_fmts) {
 +        const enum AVSampleFormat *p = codec->sample_fmts;
 +        for (; *p != -1; p++) {
 +            if (*p == st->codec->sample_fmt)
 +                break;
 +        }
 +        if (*p == -1) {
 +            if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
 +                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
 +            if(av_get_sample_fmt_name(st->codec->sample_fmt))
 +            av_log(NULL, AV_LOG_WARNING,
 +                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                   av_get_sample_fmt_name(st->codec->sample_fmt),
 +                   codec->name,
 +                   av_get_sample_fmt_name(codec->sample_fmts[0]));
 +            st->codec->sample_fmt = codec->sample_fmts[0];
 +        }
 +    }
 +}
 +
 +static void choose_sample_rate(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->supported_samplerates) {
 +        const int *p  = codec->supported_samplerates;
 +        int best      = 0;
 +        int best_dist = INT_MAX;
 +        for (; *p; p++) {
 +            int dist = abs(st->codec->sample_rate - *p);
 +            if (dist < best_dist) {
 +                best_dist = dist;
 +                best      = *p;
 +            }
 +        }
 +        if (best_dist) {
 +            int i;
 +            const int *sample_rates = codec->supported_samplerates;
 +            av_log(st->codec, AV_LOG_WARNING,
 +                   "Requested sampling rate (%dHz) unsupported, using %dHz instead\n"
 +                   "Available sampling rates for %s:",
 +                   st->codec->sample_rate, best, codec->name);
 +            for (i = 0; sample_rates[i]; i++) {
 +                if (!sample_rates[i + 1]) av_log(st->codec, AV_LOG_WARNING, " and");
 +                else if (i)               av_log(st->codec, AV_LOG_WARNING, ",");
 +                av_log(st->codec, AV_LOG_WARNING, " %d", sample_rates[i]);
 +            }
 +            av_log(st->codec, AV_LOG_WARNING, ".\n");
 +        }
 +        st->codec->sample_rate = best;
 +    }
 +}
 +
 +static double
 +get_sync_ipts(const OutputStream *ost, int64_t pts)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    return (double)(pts - of->start_time) / AV_TIME_BASE;
 +}
 +
 +static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
 +{
 +    AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
 +    AVCodecContext          *avctx = ost->st->codec;
 +    int ret;
 +
 +    if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
 +        (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
 +        pkt->pts = pkt->dts = AV_NOPTS_VALUE;
 +
 +    /*
 +     * Audio encoders may split the packets --  #frames in != #packets out.
 +     * But there is no reordering, so we can limit the number of output packets
 +     * by simply dropping them here.
 +     * Counting encoded video frames needs to be done separately because of
 +     * reordering, see do_video_out()
 +     */
 +    if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
 +        if (ost->frame_number >= ost->max_frames) {
 +            av_free_packet(pkt);
 +            return;
 +        }
 +        ost->frame_number++;
 +    }
 +
 +    while (bsfc) {
 +        AVPacket new_pkt = *pkt;
 +        int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
 +                                           &new_pkt.data, &new_pkt.size,
 +                                           pkt->data, pkt->size,
 +                                           pkt->flags & AV_PKT_FLAG_KEY);
 +        if (a > 0) {
 +            av_free_packet(pkt);
 +            new_pkt.destruct = av_destruct_packet;
 +        } else if (a < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
 +                   bsfc->filter->name, pkt->stream_index,
 +                   avctx->codec ? avctx->codec->name : "copy");
 +            print_error("", a);
 +            if (exit_on_error)
 +                exit_program(1);
 +        }
 +        *pkt = new_pkt;
 +
 +        bsfc = bsfc->next;
 +    }
 +
 +    pkt->stream_index = ost->index;
 +    ret = av_interleaved_write_frame(s, pkt);
 +    if (ret < 0) {
 +        print_error("av_interleaved_write_frame()", ret);
 +        exit_program(1);
 +    }
 +}
 +
 +static void get_default_channel_layouts(OutputStream *ost, InputStream *ist)
 +{
 +    char layout_name[256];
 +    AVCodecContext *enc = ost->st->codec;
 +    AVCodecContext *dec = ist->st->codec;
 +
 +    if (dec->channel_layout &&
 +        av_get_channel_layout_nb_channels(dec->channel_layout) != dec->channels) {
 +        av_get_channel_layout_string(layout_name, sizeof(layout_name),
 +                                     dec->channels, dec->channel_layout);
 +        av_log(NULL, AV_LOG_ERROR, "New channel layout (%s) is invalid\n",
 +               layout_name);
 +        dec->channel_layout = 0;
 +    }
 +    if (!dec->channel_layout) {
 +        if (enc->channel_layout && dec->channels == enc->channels) {
 +            dec->channel_layout = enc->channel_layout;
 +        } else {
 +            dec->channel_layout = av_get_default_channel_layout(dec->channels);
 +
 +            if (!dec->channel_layout) {
 +                av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
 +                       "layout for Input Stream #%d.%d\n", ist->file_index,
 +                       ist->st->index);
 +                exit_program(1);
 +            }
 +        }
 +        av_get_channel_layout_string(layout_name, sizeof(layout_name),
 +                                     dec->channels, dec->channel_layout);
 +        av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for  Input Stream "
 +               "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
 +    }
 +    if (!enc->channel_layout) {
 +        if (dec->channels == enc->channels) {
 +            enc->channel_layout = dec->channel_layout;
 +            return;
 +        } else {
 +            enc->channel_layout = av_get_default_channel_layout(enc->channels);
 +        }
 +        if (!enc->channel_layout) {
 +            av_log(NULL, AV_LOG_FATAL, "Unable to find default channel layout "
 +                   "for Output Stream #%d.%d\n", ost->file_index,
 +                   ost->st->index);
 +            exit_program(1);
 +        }
 +        av_get_channel_layout_string(layout_name, sizeof(layout_name),
 +                                     enc->channels, enc->channel_layout);
 +        av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Output Stream "
 +               "#%d.%d : %s\n", ost->file_index, ost->st->index, layout_name);
 +    }
 +}
 +
 +static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
 +{
 +    int fill_char = 0x00;
 +    if (sample_fmt == AV_SAMPLE_FMT_U8)
 +        fill_char = 0x80;
 +    memset(buf, fill_char, size);
 +}
 +
 +static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
 +                              const uint8_t *buf, int buf_size)
 +{
 +    AVCodecContext *enc = ost->st->codec;
 +    AVFrame *frame = NULL;
 +    AVPacket pkt;
 +    int ret, got_packet;
 +
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +
 +    if (buf && buf_size) {
 +        if (!ost->output_frame) {
 +            ost->output_frame = avcodec_alloc_frame();
 +            if (!ost->output_frame) {
 +                av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
 +                exit_program(1);
 +            }
 +        }
 +        frame = ost->output_frame;
 +        if (frame->extended_data != frame->data)
 +            av_freep(&frame->extended_data);
 +        avcodec_get_frame_defaults(frame);
 +
 +        frame->nb_samples  = buf_size /
 +                             (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
 +        if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
 +                                            buf, buf_size, 1)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_fill_audio_frame)\n");
 +            exit_program(1);
 +        }
 +
 +        frame->pts = ost->sync_opts;
 +        ost->sync_opts += frame->nb_samples;
 +    }
 +
 +    got_packet = 0;
 +    update_benchmark(NULL);
 +    if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
 +        exit_program(1);
 +    }
 +    update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
 +
 +    ret = pkt.size;
 +
 +    if (got_packet) {
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts      = av_rescale_q(pkt.pts,      enc->time_base, ost->st->time_base);
 +        if (pkt.dts != AV_NOPTS_VALUE) {
 +            int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
 +            pkt.dts      = av_rescale_q(pkt.dts,      enc->time_base, ost->st->time_base);
 +            if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE &&  max > pkt.dts) {
 +                av_log(s, max - pkt.dts > 2 ? AV_LOG_WARNING : AV_LOG_DEBUG, "Audio timestamp %"PRId64" < %"PRId64" invalid, cliping\n", pkt.dts, max);
 +                pkt.pts = pkt.dts = max;
 +            }
 +        }
 +        if (pkt.duration > 0)
 +            pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
 +
 +        write_frame(s, &pkt, ost);
 +
 +        audio_size += pkt.size;
 +
 +        av_free_packet(&pkt);
 +    }
 +
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
 +               "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
 +               av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
 +               av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
 +    }
 +
 +    return ret;
 +}
 +
 +static int alloc_audio_output_buf(AVCodecContext *dec, AVCodecContext *enc,
-     audio_buf_size = av_samples_get_buffer_size(NULL, enc->channels,
++                                  int nb_samples, int *buf_linesize)
 +{
 +    int64_t audio_buf_samples;
 +    int audio_buf_size;
 +
 +    /* calculate required number of samples to allocate */
 +    audio_buf_samples = ((int64_t)nb_samples * enc->sample_rate + dec->sample_rate) /
 +                        dec->sample_rate;
 +    audio_buf_samples = 4 * audio_buf_samples + 10000; // safety factors for resampling
 +    audio_buf_samples = FFMAX(audio_buf_samples, enc->frame_size);
 +    if (audio_buf_samples > INT_MAX)
 +        return AVERROR(EINVAL);
 +
-     int frame_bytes, resample_changed;
++    audio_buf_size = av_samples_get_buffer_size(buf_linesize, enc->channels,
 +                                                audio_buf_samples,
 +                                                enc->sample_fmt, 0);
 +    if (audio_buf_size < 0)
 +        return audio_buf_size;
 +
 +    av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
 +    if (!audio_buf)
 +        return AVERROR(ENOMEM);
 +
 +    return 0;
 +}
 +
 +static void do_audio_out(AVFormatContext *s, OutputStream *ost,
 +                         InputStream *ist, AVFrame *decoded_frame)
 +{
 +    uint8_t *buftmp;
 +    int64_t size_out;
 +
-     if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples) < 0) {
++    int frame_bytes, resample_changed, ret;
 +    AVCodecContext *enc = ost->st->codec;
 +    AVCodecContext *dec = ist->st->codec;
 +    int osize = av_get_bytes_per_sample(enc->sample_fmt);
 +    int isize = av_get_bytes_per_sample(dec->sample_fmt);
 +    uint8_t *buf[AV_NUM_DATA_POINTERS];
 +    int size     = decoded_frame->nb_samples * dec->channels * isize;
 +    int planes   = av_sample_fmt_is_planar(dec->sample_fmt) ? dec->channels : 1;
 +    int i;
++    int out_linesize = 0;
++    int buf_linesize = decoded_frame->linesize[0];
 +
 +    av_assert0(planes <= AV_NUM_DATA_POINTERS);
 +
 +    for(i=0; i<planes; i++)
 +        buf[i]= decoded_frame->data[i];
 +
++
 +    get_default_channel_layouts(ost, ist);
 +
-     if (enc->channels != dec->channels
-      || enc->sample_fmt != dec->sample_fmt
-      || enc->sample_rate!= dec->sample_rate
-     )
++    if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples, &out_linesize) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
 +        exit_program(1);
 +    }
 +
-             av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
++    if (audio_sync_method > 1                      ||
++        enc->channels       != dec->channels       ||
++        enc->channel_layout != dec->channel_layout ||
++        enc->sample_rate    != dec->sample_rate    ||
++        dec->sample_fmt     != enc->sample_fmt)
 +        ost->audio_resample = 1;
 +
 +    resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
 +                       ost->resample_channels    != dec->channels   ||
++                       ost->resample_channel_layout != dec->channel_layout ||
 +                       ost->resample_sample_rate != dec->sample_rate;
 +
 +    if ((ost->audio_resample && !ost->swr) || resample_changed || ost->audio_channels_mapped) {
++
 +        if (resample_changed) {
-                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
-                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
++            av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:0x%"PRIx64" to rate:%d fmt:%s ch:%d chl:0x%"PRIx64"\n",
 +                   ist->file_index, ist->st->index,
-                     if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta) < 0) {
++                   ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt),
++                   ost->resample_channels, ost->resample_channel_layout,
++                   dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt),
++                   dec->channels, dec->channel_layout);
 +            ost->resample_sample_fmt  = dec->sample_fmt;
 +            ost->resample_channels    = dec->channels;
++            ost->resample_channel_layout = dec->channel_layout;
 +            ost->resample_sample_rate = dec->sample_rate;
 +            swr_free(&ost->swr);
 +        }
 +        /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
 +        if (audio_sync_method <= 1 && !ost->audio_channels_mapped &&
 +            ost->resample_sample_fmt  == enc->sample_fmt &&
 +            ost->resample_channels    == enc->channels   &&
++            ost->resample_channel_layout == enc->channel_layout &&
 +            ost->resample_sample_rate == enc->sample_rate) {
 +            //ost->swr = NULL;
 +            ost->audio_resample = 0;
 +        } else {
 +            ost->swr = swr_alloc_set_opts(ost->swr,
 +                                          enc->channel_layout, enc->sample_fmt, enc->sample_rate,
 +                                          dec->channel_layout, dec->sample_fmt, dec->sample_rate,
 +                                          0, NULL);
 +            av_opt_set_int(ost->swr, "dither_method", ost->swr_dither_method,0);
 +            av_opt_set_int(ost->swr, "dither_scale", ost->swr_dither_scale,0);
 +            if (ost->audio_channels_mapped)
 +                swr_set_channel_mapping(ost->swr, ost->audio_channels_map);
 +            av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
 +            if (ost->audio_channels_mapped) {
 +                av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0);
 +                av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0);
 +            }
 +            if (av_opt_set_int(ost->swr, "ich", dec->channels, 0) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Unsupported number of input channels\n");
 +                exit_program(1);
 +            }
 +            if (av_opt_set_int(ost->swr, "och", enc->channels, 0) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Unsupported number of output channels\n");
 +                exit_program(1);
 +            }
 +            if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0);
 +            if(ost->swr && swr_init(ost->swr) < 0){
 +                av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n");
 +                swr_free(&ost->swr);
 +            }
 +
 +            if (!ost->swr) {
 +                av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
 +                        dec->channels, dec->sample_rate,
 +                        enc->channels, enc->sample_rate);
 +                exit_program(1);
 +            }
 +        }
 +    }
 +
 +    av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 +
 +    if (audio_sync_method > 0) {
 +        double delta = get_sync_ipts(ost, ist->pts) * enc->sample_rate - ost->sync_opts -
 +                       av_fifo_size(ost->fifo) / (enc->channels * osize);
 +        int idelta = delta * dec->sample_rate / enc->sample_rate;
 +        int byte_delta = idelta * isize * dec->channels;
 +
 +        // FIXME resample delay
 +        if (fabs(delta) > 50) {
 +            if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
 +                if (byte_delta < 0) {
 +                    byte_delta = FFMAX(byte_delta, -size);
 +                    size += byte_delta;
 +                    for (i=0; i<planes; i++)
 +                        buf[i]  -= byte_delta/planes;
 +                    av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
 +                           -byte_delta / (isize * dec->channels));
 +                    if (!size)
 +                        return;
 +                    ist->is_start = 0;
 +                } else {
 +                    av_fast_malloc(&async_buf, &allocated_async_buf_size,
 +                                   byte_delta + size);
 +                    if (!async_buf) {
 +                        av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
 +                        exit_program(1);
 +                    }
 +
-                 av_assert0(ost->audio_resample);
++                    if (alloc_audio_output_buf(dec, enc, decoded_frame->nb_samples + idelta, &out_linesize) < 0) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error allocating audio buffer\n");
 +                        exit_program(1);
 +                    }
 +                    ist->is_start = 0;
 +
 +                    for (i=0; i<planes; i++) {
 +                        uint8_t *t = async_buf + i*((byte_delta + size)/planes);
 +                        generate_silence(t, dec->sample_fmt, byte_delta/planes);
 +                        memcpy(t + byte_delta/planes, buf[i], size/planes);
 +                        buf[i] = t;
 +                    }
 +                    size += byte_delta;
++                    buf_linesize = allocated_async_buf_size;
 +                    av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
 +                }
 +            } else if (audio_sync_method > 1) {
 +                int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
-         size_out = swr_convert(ost->swr, (      uint8_t*[]){buftmp}, allocated_audio_buf_size / (enc->channels * osize),
-                                          buf, size / (dec->channels * isize));
 +                av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
 +                       delta, comp, enc->sample_rate);
 +//                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
 +                swr_set_compensation(ost->swr, comp, enc->sample_rate);
 +            }
 +        }
 +    } else if (audio_sync_method == 0)
 +        ost->sync_opts = lrintf(get_sync_ipts(ost, ist->pts) * enc->sample_rate) -
 +                                av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
 +
 +    if (ost->audio_resample || ost->audio_channels_mapped) {
 +        buftmp = audio_buf;
-                 ost->audio_resample       = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
-                 ost->audio_resample      |=    codec->sample_fmt     != icodec->sample_fmt
-                                             || codec->channel_layout != icodec->channel_layout;
-                 icodec->request_channels  = codec->channels;
++        size_out = swr_convert(ost->swr, (      uint8_t*[]){buftmp},
++                                      allocated_audio_buf_size / (enc->channels * osize),
++                                      buf,
++                                      size / (dec->channels * isize));
 +        if (size_out < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "swr_convert failed\n");
 +            exit_program(1);
 +        }
 +        size_out = size_out * enc->channels * osize;
 +    } else {
 +        buftmp = buf[0];
 +        size_out = size;
 +    }
 +
 +    av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 +
 +    /* now encode as many frames as possible */
 +    if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
 +        /* output resampled raw samples */
 +        if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
 +            exit_program(1);
 +        }
 +        av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
 +
 +        frame_bytes = enc->frame_size * osize * enc->channels;
 +
 +        while (av_fifo_size(ost->fifo) >= frame_bytes) {
 +            av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
 +            encode_audio_frame(s, ost, audio_buf, frame_bytes);
 +        }
 +    } else {
 +        encode_audio_frame(s, ost, buftmp, size_out);
 +    }
 +}
 +
 +static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
 +{
 +    AVCodecContext *dec;
 +    AVPicture *picture2;
 +    AVPicture picture_tmp;
 +    uint8_t *buf = 0;
 +
 +    dec = ist->st->codec;
 +
 +    /* deinterlace : must be done before any resize */
 +    if (do_deinterlace) {
 +        int size;
 +
 +        /* create temporary picture */
 +        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
 +        buf  = av_malloc(size);
 +        if (!buf)
 +            return;
 +
 +        picture2 = &picture_tmp;
 +        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
 +
 +        if (avpicture_deinterlace(picture2, picture,
 +                                 dec->pix_fmt, dec->width, dec->height) < 0) {
 +            /* if error, do not deinterlace */
 +            av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
 +            av_free(buf);
 +            buf = NULL;
 +            picture2 = picture;
 +        }
 +    } else {
 +        picture2 = picture;
 +    }
 +
 +    if (picture != picture2)
 +        *picture = *picture2;
 +    *bufp = buf;
 +}
 +
 +static void do_subtitle_out(AVFormatContext *s,
 +                            OutputStream *ost,
 +                            InputStream *ist,
 +                            AVSubtitle *sub,
 +                            int64_t pts)
 +{
 +    static uint8_t *subtitle_out = NULL;
 +    int subtitle_out_max_size = 1024 * 1024;
 +    int subtitle_out_size, nb, i;
 +    AVCodecContext *enc;
 +    AVPacket pkt;
 +
 +    if (pts == AV_NOPTS_VALUE) {
 +        av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
 +        if (exit_on_error)
 +            exit_program(1);
 +        return;
 +    }
 +
 +    enc = ost->st->codec;
 +
 +    if (!subtitle_out) {
 +        subtitle_out = av_malloc(subtitle_out_max_size);
 +    }
 +
 +    /* Note: DVB subtitle need one packet to draw them and one other
 +       packet to clear them */
 +    /* XXX: signal it in the codec context ? */
 +    if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
 +        nb = 2;
 +    else
 +        nb = 1;
 +
 +    for (i = 0; i < nb; i++) {
 +        ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
 +
 +        sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
 +        // start_display_time is required to be 0
 +        sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
 +        sub->end_display_time  -= sub->start_display_time;
 +        sub->start_display_time = 0;
 +        subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
 +                                                    subtitle_out_max_size, sub);
 +        if (subtitle_out_size < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
 +            exit_program(1);
 +        }
 +
 +        av_init_packet(&pkt);
 +        pkt.data = subtitle_out;
 +        pkt.size = subtitle_out_size;
 +        pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
 +        if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
 +            /* XXX: the pts correction is handled here. Maybe handling
 +               it in the codec would be better */
 +            if (i == 0)
 +                pkt.pts += 90 * sub->start_display_time;
 +            else
 +                pkt.pts += 90 * sub->end_display_time;
 +        }
 +        write_frame(s, &pkt, ost);
 +    }
 +}
 +
 +static double psnr(double d)
 +{
 +    return -10.0 * log(d) / log(10.0);
 +}
 +
 +static void do_video_stats(AVFormatContext *os, OutputStream *ost,
 +                           int frame_size)
 +{
 +    AVCodecContext *enc;
 +    int frame_number;
 +    double ti1, bitrate, avg_bitrate;
 +
 +    /* this is executed just the first time do_video_stats is called */
 +    if (!vstats_file) {
 +        vstats_file = fopen(vstats_filename, "w");
 +        if (!vstats_file) {
 +            perror("fopen");
 +            exit_program(1);
 +        }
 +    }
 +
 +    enc = ost->st->codec;
 +    if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        frame_number = ost->frame_number;
 +        fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
 +        if (enc->flags&CODEC_FLAG_PSNR)
 +            fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
 +
 +        fprintf(vstats_file,"f_size= %6d ", frame_size);
 +        /* compute pts value */
 +        ti1 = ost->sync_opts * av_q2d(enc->time_base);
 +        if (ti1 < 0.01)
 +            ti1 = 0.01;
 +
 +        bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
 +        avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
 +        fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 +               (double)video_size / 1024, ti1, bitrate, avg_bitrate);
 +        fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
 +    }
 +}
 +
 +
 +static void do_video_out(AVFormatContext *s, OutputStream *ost,
 +                         AVFrame *in_picture, float quality)
 +{
 +    int nb_frames, i, ret, format_video_sync;
 +    AVCodecContext *enc;
 +    double sync_ipts, delta;
 +    double duration = 0;
 +    int frame_size = 0;
 +    InputStream *ist = NULL;
 +
 +    if (ost->source_index >= 0)
 +        ist = input_streams[ost->source_index];
 +
 +    enc = ost->st->codec;
 +
 +    if (ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) {
 +        duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base));
 +        if(ist->st->r_frame_rate.num)
 +            duration= FFMAX(duration, 1/av_q2d(ist->st->r_frame_rate));
 +        if(ist->st->avg_frame_rate.num && 0)
 +            duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate));
 +
 +        duration /= av_q2d(enc->time_base);
 +    }
 +
 +    sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
 +    delta = sync_ipts - ost->sync_opts + duration;
 +
 +    /* by default, we output a single frame */
 +    nb_frames = 1;
 +
 +    format_video_sync = video_sync_method;
 +    if (format_video_sync == VSYNC_AUTO)
 +        format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
 +
 +    switch (format_video_sync) {
 +    case VSYNC_CFR:
 +        // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
 +        if (delta < -1.1)
 +            nb_frames = 0;
 +        else if (delta > 1.1)
 +            nb_frames = lrintf(delta);
 +        break;
 +    case VSYNC_VFR:
 +        if (delta <= -0.6)
 +            nb_frames = 0;
 +        else if (delta > 0.6)
 +            ost->sync_opts = lrintf(sync_ipts);
 +        break;
 +    case VSYNC_DROP:
 +    case VSYNC_PASSTHROUGH:
 +        ost->sync_opts = lrintf(sync_ipts);
 +        break;
 +    default:
 +        av_assert0(0);
 +    }
 +
 +    nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
 +    if (nb_frames == 0) {
 +        nb_frames_drop++;
 +        av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
 +        return;
 +    } else if (nb_frames > 1) {
 +        nb_frames_dup += nb_frames - 1;
 +        av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
 +    }
 +
 +    /* duplicates frame if needed */
 +    for (i = 0; i < nb_frames; i++) {
 +        AVPacket pkt;
 +        av_init_packet(&pkt);
 +        pkt.data = NULL;
 +        pkt.size = 0;
 +
 +        if (s->oformat->flags & AVFMT_RAWPICTURE &&
 +            enc->codec->id == CODEC_ID_RAWVIDEO) {
 +            /* raw pictures are written as AVPicture structure to
 +               avoid any copies. We support temporarily the older
 +               method. */
 +            enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
 +            enc->coded_frame->top_field_first  = in_picture->top_field_first;
 +            pkt.data   = (uint8_t *)in_picture;
 +            pkt.size   =  sizeof(AVPicture);
 +            pkt.pts    = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
 +            pkt.flags |= AV_PKT_FLAG_KEY;
 +
 +            write_frame(s, &pkt, ost);
 +        } else {
 +            int got_packet;
 +            AVFrame big_picture;
 +
 +            big_picture = *in_picture;
 +            /* better than nothing: use input picture interlaced
 +               settings */
 +            big_picture.interlaced_frame = in_picture->interlaced_frame;
 +            if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
 +                if (ost->top_field_first == -1)
 +                    big_picture.top_field_first = in_picture->top_field_first;
 +                else
 +                    big_picture.top_field_first = !!ost->top_field_first;
 +            }
 +
 +            /* handles same_quant here. This is not correct because it may
 +               not be a global option */
 +            big_picture.quality = quality;
 +            if (!enc->me_threshold)
 +                big_picture.pict_type = 0;
 +            big_picture.pts = ost->sync_opts;
 +            if (ost->forced_kf_index < ost->forced_kf_count &&
 +                big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
 +                big_picture.pict_type = AV_PICTURE_TYPE_I;
 +                ost->forced_kf_index++;
 +            }
 +            update_benchmark(NULL);
 +            ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
 +            update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
 +                exit_program(1);
 +            }
 +
 +            if (got_packet) {
 +                if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
 +                    pkt.pts = ost->sync_opts;
 +
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +                if (pkt.dts != AV_NOPTS_VALUE)
 +                    pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +
 +                if (debug_ts) {
 +                    av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
 +                           "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
 +                           av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
 +                           av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
 +                }
 +
 +                write_frame(s, &pkt, ost);
 +                frame_size = pkt.size;
 +                video_size += pkt.size;
 +                av_free_packet(&pkt);
 +
 +                /* if two pass, output log */
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +            }
 +        }
 +        ost->sync_opts++;
 +        /*
 +         * For video, number of frames in == number of packets out.
 +         * But there may be reordering, so we can't throw away frames on encoder
 +         * flush, we need to limit them here, before they go into encoder.
 +         */
 +        ost->frame_number++;
 +    }
 +    if (vstats_filename && frame_size)
 +        do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
 +}
 +
 +/* check for new output on any of the filtergraphs */
 +static int poll_filters(void)
 +{
 +    AVFilterBufferRef *picref;
 +    AVFrame *filtered_frame = NULL;
 +    int i, ret, ret_all;
 +    unsigned nb_success, nb_eof;
 +
 +    while (1) {
 +        /* Reap all buffers present in the buffer sinks */
 +        /* TODO reindent */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +        OutputFile    *of = output_files[ost->file_index];
 +
 +        if (!ost->filter || ost->is_past_recording_time)
 +            continue;
 +
 +        if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
 +            return AVERROR(ENOMEM);
 +        } else
 +            avcodec_get_frame_defaults(ost->filtered_frame);
 +        filtered_frame = ost->filtered_frame;
 +
 +        while (1) {
 +            AVRational ist_pts_tb = ost->filter->filter->inputs[0]->time_base;
 +            ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
 +                                               AV_BUFFERSINK_FLAG_NO_REQUEST);
 +            if (ret < 0) {
 +                if (ret != AVERROR(EAGAIN)) {
 +                    char buf[256];
 +                    av_strerror(ret, buf, sizeof(buf));
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
 +                }
 +                break;
 +            }
 +            filtered_frame->pts = av_rescale_q(picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
 +//             if (ost->source_index >= 0)
 +//                 *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
 +
 +            if (of->start_time && filtered_frame->pts < of->start_time)
 +                return 0;
 +
 +            switch (ost->filter->filter->inputs[0]->type) {
 +            case AVMEDIA_TYPE_VIDEO:
 +                avfilter_fill_frame_from_video_buffer_ref(filtered_frame, picref);
 +                if (!ost->frame_aspect_ratio)
 +                    ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
 +
 +                do_video_out(of->ctx, ost, filtered_frame,
 +                             same_quant ? ost->last_quality :
 +                                          ost->st->codec->global_quality);
 +                break;
 +            default:
 +                // TODO support audio/subtitle filters
 +                av_assert0(0);
 +            }
 +
 +            avfilter_unref_buffer(picref);
 +        }
 +    }
 +        /* Request frames through all the graphs */
 +        ret_all = nb_success = nb_eof = 0;
 +        for (i = 0; i < nb_filtergraphs; i++) {
 +            ret = avfilter_graph_request_oldest(filtergraphs[i]->graph);
 +            if (!ret) {
 +                nb_success++;
 +            } else if (ret == AVERROR_EOF) {
 +                nb_eof++;
 +            } else if (ret != AVERROR(EAGAIN)) {
 +                char buf[256];
 +                av_strerror(ret, buf, sizeof(buf));
 +                av_log(NULL, AV_LOG_WARNING,
 +                       "Error in request_frame(): %s\n", buf);
 +                ret_all = ret;
 +            }
 +        }
 +        if (!nb_success)
 +            break;
 +        /* Try again if anything succeeded */
 +    }
 +    return nb_eof == nb_filtergraphs ? AVERROR_EOF : ret_all;
 +}
 +
 +static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
 +{
 +    char buf[1024];
 +    OutputStream *ost;
 +    AVFormatContext *oc;
 +    int64_t total_size;
 +    AVCodecContext *enc;
 +    int frame_number, vid, i;
 +    double bitrate;
 +    int64_t pts = INT64_MAX;
 +    static int64_t last_time = -1;
 +    static int qp_histogram[52];
 +    int hours, mins, secs, us;
 +
 +    if (!print_stats && !is_last_report)
 +        return;
 +
 +    if (!is_last_report) {
 +        if (last_time == -1) {
 +            last_time = cur_time;
 +            return;
 +        }
 +        if ((cur_time - last_time) < 500000)
 +            return;
 +        last_time = cur_time;
 +    }
 +
 +
 +    oc = output_files[0]->ctx;
 +
 +    total_size = avio_size(oc->pb);
 +    if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
 +        total_size = avio_tell(oc->pb);
 +        if (total_size < 0)
 +            total_size = 0;
 +    }
 +
 +    buf[0] = '\0';
 +    vid = 0;
 +    for (i = 0; i < nb_output_streams; i++) {
 +        float q = -1;
 +        ost = output_streams[i];
 +        enc = ost->st->codec;
 +        if (!ost->stream_copy && enc->coded_frame)
 +            q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
 +        if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
 +        }
 +        if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            float fps, t = (cur_time-timer_start) / 1000000.0;
 +
 +            frame_number = ost->frame_number;
 +            fps = t > 1 ? frame_number / t : 0;
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
 +                     frame_number, fps < 9.95, fps, q);
 +            if (is_last_report)
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
 +            if (qp_hist) {
 +                int j;
 +                int qp = lrintf(q);
 +                if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
 +                    qp_histogram[qp]++;
 +                for (j = 0; j < 32; j++)
 +                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
 +            }
 +            if (enc->flags&CODEC_FLAG_PSNR) {
 +                int j;
 +                double error, error_sum = 0;
 +                double scale, scale_sum = 0;
 +                char type[3] = { 'Y','U','V' };
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
 +                for (j = 0; j < 3; j++) {
 +                    if (is_last_report) {
 +                        error = enc->error[j];
 +                        scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
 +                    } else {
 +                        error = enc->coded_frame->error[j];
 +                        scale = enc->width * enc->height * 255.0 * 255.0;
 +                    }
 +                    if (j)
 +                        scale /= 4;
 +                    error_sum += error;
 +                    scale_sum += scale;
 +                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
 +                }
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
 +            }
 +            vid = 1;
 +        }
 +        /* compute min output value */
 +        pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
 +                                      ost->st->time_base, AV_TIME_BASE_Q));
 +    }
 +
 +    secs = pts / AV_TIME_BASE;
 +    us = pts % AV_TIME_BASE;
 +    mins = secs / 60;
 +    secs %= 60;
 +    hours = mins / 60;
 +    mins %= 60;
 +
 +    bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
 +
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "size=%8.0fkB time=", total_size / 1024.0);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "%02d:%02d:%02d.%02d ", hours, mins, secs,
 +             (100 * us) / AV_TIME_BASE);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "bitrate=%6.1fkbits/s", bitrate);
 +
 +    if (nb_frames_dup || nb_frames_drop)
 +        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
 +                nb_frames_dup, nb_frames_drop);
 +
 +    av_log(NULL, AV_LOG_INFO, "%s    \r", buf);
 +
 +    fflush(stderr);
 +
 +    if (is_last_report) {
 +        int64_t raw= audio_size + video_size + extra_size;
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +        av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
 +               video_size / 1024.0,
 +               audio_size / 1024.0,
 +               extra_size / 1024.0,
 +               100.0 * (total_size - raw) / raw
 +        );
 +        if(video_size + audio_size + extra_size == 0){
 +            av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
 +        }
 +    }
 +}
 +
 +static void flush_encoders(void)
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream   *ost = output_streams[i];
 +        AVCodecContext *enc = ost->st->codec;
 +        AVFormatContext *os = output_files[ost->file_index]->ctx;
 +        int stop_encoding = 0;
 +
 +        if (!ost->encoding_needed)
 +            continue;
 +
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
 +            continue;
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
 +            continue;
 +
 +        for (;;) {
 +            AVPacket pkt;
 +            int fifo_bytes, got_packet;
 +            av_init_packet(&pkt);
 +            pkt.data = NULL;
 +            pkt.size = 0;
 +
 +            switch (ost->st->codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                fifo_bytes = av_fifo_size(ost->fifo);
 +                if (fifo_bytes > 0) {
 +                    /* encode any samples remaining in fifo */
 +                    int frame_bytes = fifo_bytes;
 +
 +                    av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
 +
 +                    /* pad last frame with silence if needed */
 +                    if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
 +                        frame_bytes = enc->frame_size * enc->channels *
 +                                      av_get_bytes_per_sample(enc->sample_fmt);
 +                        if (allocated_audio_buf_size < frame_bytes)
 +                            exit_program(1);
 +                        generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
 +                    }
 +                    encode_audio_frame(os, ost, audio_buf, frame_bytes);
 +                } else {
 +                    /* flush encoder with NULL frames until it is done
 +                       returning packets */
 +                    if (encode_audio_frame(os, ost, NULL, 0) == 0) {
 +                        stop_encoding = 1;
 +                        break;
 +                    }
 +                }
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                update_benchmark(NULL);
 +                ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
 +                update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
 +                if (ret < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
 +                    exit_program(1);
 +                }
 +                video_size += pkt.size;
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +                if (!got_packet) {
 +                    stop_encoding = 1;
 +                    break;
 +                }
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +                if (pkt.dts != AV_NOPTS_VALUE)
 +                    pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +                write_frame(os, &pkt, ost);
 +                break;
 +            default:
 +                stop_encoding = 1;
 +            }
 +            if (stop_encoding)
 +                break;
 +        }
 +    }
 +}
 +
 +/*
 + * Check whether a packet from ist should be written into ost at this time
 + */
 +static int check_output_constraints(InputStream *ist, OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    int ist_index  = input_files[ist->file_index]->ist_index + ist->st->index;
 +
 +    if (ost->source_index != ist_index)
 +        return 0;
 +
 +    if (of->start_time && ist->pts < of->start_time)
 +        return 0;
 +
 +    if (of->recording_time != INT64_MAX &&
 +        av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
 +                      (AVRational){ 1, 1000000 }) >= 0) {
 +        ost->is_past_recording_time = 1;
 +        return 0;
 +    }
 +
 +    return 1;
 +}
 +
 +static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
 +    AVPicture pict;
 +    AVPacket opkt;
 +
 +    av_init_packet(&opkt);
 +
 +    if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
 +        !ost->copy_initial_nonkeyframes)
 +        return;
 +
 +    /* force the input stream PTS */
 +    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +        audio_size += pkt->size;
 +    else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        video_size += pkt->size;
 +        ost->sync_opts++;
 +    }
 +
 +    if (pkt->pts != AV_NOPTS_VALUE)
 +        opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
 +    else
 +        opkt.pts = AV_NOPTS_VALUE;
 +
 +    if (pkt->dts == AV_NOPTS_VALUE)
 +        opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
 +    else
 +        opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
 +    opkt.dts -= ost_tb_start_time;
 +
 +    opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
 +    opkt.flags    = pkt->flags;
 +
 +    // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
 +    if (  ost->st->codec->codec_id != CODEC_ID_H264
 +       && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
 +       && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
 +       && ost->st->codec->codec_id != CODEC_ID_VC1
 +       ) {
 +        if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
 +            opkt.destruct = av_destruct_packet;
 +    } else {
 +        opkt.data = pkt->data;
 +        opkt.size = pkt->size;
 +    }
 +    if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
 +        /* store AVPicture in AVPacket, as expected by the output format */
 +        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
 +        opkt.data = (uint8_t *)&pict;
 +        opkt.size = sizeof(AVPicture);
 +        opkt.flags |= AV_PKT_FLAG_KEY;
 +    }
 +
 +    write_frame(of->ctx, &opkt, ost);
 +    ost->st->codec->frame_number++;
 +    av_free_packet(&opkt);
 +}
 +
 +static void rate_emu_sleep(InputStream *ist)
 +{
 +    if (input_files[ist->file_index]->rate_emu) {
 +        int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
 +        int64_t now = av_gettime() - ist->start;
 +        if (pts > now)
 +            usleep(pts - now);
 +    }
 +}
 +
 +static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVFrame *decoded_frame;
 +    AVCodecContext *avctx = ist->st->codec;
 +    int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
 +    int i, ret;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +
 +    update_benchmark(NULL);
 +    ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
 +    update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
 +    if (ret < 0) {
 +        return ret;
 +    }
 +    if (avctx->sample_rate <= 0) {
 +        av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
 +        return AVERROR_INVALIDDATA;
 +    }
 +
 +    if (!*got_output) {
 +        /* no audio frame */
 +        return ret;
 +    }
 +
 +    /* if the decoder provides a pts, use it instead of the last packet pts.
 +       the decoder could be delaying output by a packet or more. */
 +    if (decoded_frame->pts != AV_NOPTS_VALUE)
 +        ist->dts = ist->next_dts = ist->pts = ist->next_pts = decoded_frame->pts;
 +
 +    /* increment next_dts to use for the case where the input stream does not
 +       have timestamps or there are multiple frames in the packet */
 +    ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
 +                     avctx->sample_rate;
 +    ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
 +                     avctx->sample_rate;
 +
 +
 +    // preprocess audio (volume)
 +    if (audio_volume != 256) {
 +        int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
 +        void *samples = decoded_frame->data[0];
 +        switch (avctx->sample_fmt) {
 +        case AV_SAMPLE_FMT_U8:
 +        {
 +            uint8_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
 +                *volp++ = av_clip_uint8(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_S16:
 +        {
 +            int16_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int v = ((*volp) * audio_volume + 128) >> 8;
 +                *volp++ = av_clip_int16(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_S32:
 +        {
 +            int32_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
 +                *volp++ = av_clipl_int32(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_FLT:
 +        {
 +            float *volp = samples;
 +            float scale = audio_volume / 256.f;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                *volp++ *= scale;
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_DBL:
 +        {
 +            double *volp = samples;
 +            double scale = audio_volume / 256.;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                *volp++ *= scale;
 +            }
 +            break;
 +        }
 +        default:
 +            av_log(NULL, AV_LOG_FATAL,
 +                   "Audio volume adjustment on sample format %s is not supported.\n",
 +                   av_get_sample_fmt_name(ist->st->codec->sample_fmt));
 +            exit_program(1);
 +        }
 +    }
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +        do_audio_out(output_files[ost->file_index]->ctx, ost, ist, decoded_frame);
 +    }
 +
 +    return ret;
 +}
 +
 +static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
 +{
 +    AVFrame *decoded_frame;
 +    void *buffer_to_free = NULL;
 +    int i, ret = 0, resample_changed;
 +    int64_t *best_effort_timestamp;
 +    AVRational *frame_sample_aspect;
 +    float quality;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +    pkt->pts  = *pkt_pts;
 +    pkt->dts  = ist->dts;
 +    *pkt_pts  = AV_NOPTS_VALUE;
 +
 +    update_benchmark(NULL);
 +    ret = avcodec_decode_video2(ist->st->codec,
 +                                decoded_frame, got_output, pkt);
 +    update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
 +    if (ret < 0)
 +        return ret;
 +
 +    quality = same_quant ? decoded_frame->quality : 0;
 +    if (!*got_output) {
 +        /* no picture yet */
 +        if (!pkt->size)
 +            for (i = 0; i < ist->nb_filters; i++)
 +                av_buffersrc_buffer(ist->filters[i]->filter, NULL);
 +        return ret;
 +    }
 +
 +    best_effort_timestamp= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "best_effort_timestamp");
 +    if(*best_effort_timestamp != AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts = decoded_frame->pts = *best_effort_timestamp;
 +
 +    pkt->size = 0;
 +
 +    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
 +
 +    rate_emu_sleep(ist);
 +
 +    if (ist->st->sample_aspect_ratio.num)
 +        decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
 +
 +    resample_changed = ist->resample_width   != decoded_frame->width  ||
 +                       ist->resample_height  != decoded_frame->height ||
 +                       ist->resample_pix_fmt != decoded_frame->format;
 +    if (resample_changed) {
 +        av_log(NULL, AV_LOG_INFO,
 +               "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
 +               ist->file_index, ist->st->index,
 +               ist->resample_width,  ist->resample_height,  av_get_pix_fmt_name(ist->resample_pix_fmt),
 +               decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
 +
 +        ist->resample_width   = decoded_frame->width;
 +        ist->resample_height  = decoded_frame->height;
 +        ist->resample_pix_fmt = decoded_frame->format;
 +
 +        for (i = 0; i < nb_filtergraphs; i++)
 +            if (ist_in_filtergraph(filtergraphs[i], ist) &&
 +                configure_filtergraph(filtergraphs[i]) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
 +                exit_program(1);
 +            }
 +    }
 +
 +    frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
 +    for (i = 0; i < ist->nb_filters; i++) {
 +        int changed =      ist->st->codec->width   != ist->filters[i]->filter->outputs[0]->w
 +                        || ist->st->codec->height  != ist->filters[i]->filter->outputs[0]->h
 +                        || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
 +        // XXX what an ugly hack
 +        if (ist->filters[i]->graph->nb_outputs == 1)
 +            ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
 +
 +        if (!frame_sample_aspect->num)
 +            *frame_sample_aspect = ist->st->sample_aspect_ratio;
 +        if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
 +            FrameBuffer      *buf = decoded_frame->opaque;
 +            AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
 +                                        decoded_frame->data, decoded_frame->linesize,
 +                                        AV_PERM_READ | AV_PERM_PRESERVE,
 +                                        ist->st->codec->width, ist->st->codec->height,
 +                                        ist->st->codec->pix_fmt);
 +
 +            avfilter_copy_frame_props(fb, decoded_frame);
 +            fb->buf->priv           = buf;
 +            fb->buf->free           = filter_release_buffer;
 +
 +            av_assert0(buf->refcount>0);
 +            buf->refcount++;
 +            av_buffersrc_buffer(ist->filters[i]->filter, fb);
 +        } else
 +        if(av_vsrc_buffer_add_frame(ist->filters[i]->filter, decoded_frame,AV_VSRC_BUF_FLAG_OVERWRITE)<0) {
 +            av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
 +            exit_program(1);
 +        }
 +
 +    }
 +
 +    av_free(buffer_to_free);
 +    return ret;
 +}
 +
 +static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVSubtitle subtitle;
 +    int i, ret = avcodec_decode_subtitle2(ist->st->codec,
 +                                          &subtitle, got_output, pkt);
 +    if (ret < 0)
 +        return ret;
 +    if (!*got_output)
 +        return ret;
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +
 +        do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
 +    }
 +
 +    avsubtitle_free(&subtitle);
 +    return ret;
 +}
 +
 +/* pkt = NULL means EOF (needed to flush decoder buffers) */
 +static int output_packet(InputStream *ist, const AVPacket *pkt)
 +{
 +    int ret = 0, i;
 +    int got_output;
 +    int64_t pkt_pts = AV_NOPTS_VALUE;
 +
 +    AVPacket avpkt;
 +    if (!ist->saw_first_ts) {
 +        ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
 +        ist->pts = 0;
 +        if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
 +            ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
 +            ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
 +        }
 +        ist->saw_first_ts = 1;
 +    }
 +
 +    if (ist->next_dts == AV_NOPTS_VALUE)
 +        ist->next_dts = ist->dts;
 +    if (ist->next_pts == AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts;
 +
 +    if (pkt == NULL) {
 +        /* EOF handling */
 +        av_init_packet(&avpkt);
 +        avpkt.data = NULL;
 +        avpkt.size = 0;
 +        goto handle_eof;
 +    } else {
 +        avpkt = *pkt;
 +    }
 +
 +    if (pkt->dts != AV_NOPTS_VALUE) {
 +        ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +        if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
 +            ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +    }
 +    if(pkt->pts != AV_NOPTS_VALUE)
 +        pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
 +
 +    // while we have more to decode or while the decoder did output something on EOF
 +    while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
 +        int duration;
 +    handle_eof:
 +
 +        ist->pts = ist->next_pts;
 +        ist->dts = ist->next_dts;
 +
 +        if (avpkt.size && avpkt.size != pkt->size) {
 +            av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
 +                   "Multiple frames in a packet from stream %d\n", pkt->stream_index);
 +            ist->showed_multi_packet_warning = 1;
 +        }
 +
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ret = transcode_audio    (ist, &avpkt, &got_output);
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            ret = transcode_video    (ist, &avpkt, &got_output, &pkt_pts);
 +            if (avpkt.duration) {
 +                duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
 +                duration = ((int64_t)AV_TIME_BASE *
 +                                ist->st->codec->time_base.num * ticks) /
 +                                ist->st->codec->time_base.den;
 +            } else
 +                duration = 0;
 +
 +            if(ist->dts != AV_NOPTS_VALUE && duration) {
 +                ist->next_dts += duration;
 +            }else
 +                ist->next_dts = AV_NOPTS_VALUE;
 +
 +            if (got_output)
 +                ist->next_pts += duration; //FIXME the duration is not correct in some cases
 +            break;
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            ret = transcode_subtitles(ist, &avpkt, &got_output);
 +            break;
 +        default:
 +            return -1;
 +        }
 +
 +        if (ret < 0)
 +            return ret;
 +
 +        avpkt.dts=
 +        avpkt.pts= AV_NOPTS_VALUE;
 +
 +        // touch data and size only if not EOF
 +        if (pkt) {
 +            if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
 +                ret = avpkt.size;
 +            avpkt.data += ret;
 +            avpkt.size -= ret;
 +        }
 +        if (!got_output) {
 +            continue;
 +        }
 +    }
 +
 +    /* handle stream copy */
 +    if (!ist->decoding_needed) {
 +        rate_emu_sleep(ist);
 +        ist->dts = ist->next_dts;
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
 +                             ist->st->codec->sample_rate;
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            if (pkt->duration) {
 +                ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
 +                ist->next_dts += ((int64_t)AV_TIME_BASE *
 +                                  ist->st->codec->time_base.num * ticks) /
 +                                  ist->st->codec->time_base.den;
 +            }
 +            break;
 +        }
 +        ist->pts = ist->dts;
 +        ist->next_pts = ist->next_dts;
 +    }
 +    for (i = 0; pkt && i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || ost->encoding_needed)
 +            continue;
 +
 +        do_streamcopy(ist, ost, pkt);
 +    }
 +
 +    return 0;
 +}
 +
 +static void print_sdp(void)
 +{
 +    char sdp[2048];
 +    int i;
 +    AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
 +
 +    if (!avc)
 +        exit_program(1);
 +    for (i = 0; i < nb_output_files; i++)
 +        avc[i] = output_files[i]->ctx;
 +
 +    av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
 +    printf("SDP:\n%s\n", sdp);
 +    fflush(stdout);
 +    av_freep(&avc);
 +}
 +
 +static int init_input_stream(int ist_index, char *error, int error_len)
 +{
 +    int i;
 +    InputStream *ist = input_streams[ist_index];
 +
 +    if (ist->decoding_needed) {
 +        AVCodec *codec = ist->dec;
 +        if (!codec) {
 +            snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
 +                    avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +
 +        ist->dr1 = codec->capabilities & CODEC_CAP_DR1;
 +        if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
 +            ist->st->codec->get_buffer     = codec_get_buffer;
 +            ist->st->codec->release_buffer = codec_release_buffer;
 +            ist->st->codec->opaque         = ist;
 +        }
 +
 +        if (!av_dict_get(ist->opts, "threads", NULL, 0))
 +            av_dict_set(&ist->opts, "threads", "auto", 0);
 +        if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
 +            snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
 +                    ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +        assert_codec_experimental(ist->st->codec, 0);
 +        assert_avoptions(ist->opts);
 +
 +        if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
 +            for (i = 0; i < nb_output_streams; i++) {
 +                OutputStream *ost = output_streams[i];
 +                if (ost->source_index == ist_index) {
 +                    if (!ist->st->codec->channel_layout || !ost->st->codec->channel_layout)
 +                        get_default_channel_layouts(ost, ist);
 +                    break;
 +                }
 +            }
 +        }
 +    }
 +
 +    ist->next_pts = AV_NOPTS_VALUE;
 +    ist->next_dts = AV_NOPTS_VALUE;
 +    ist->is_start = 1;
 +
 +    return 0;
 +}
 +
 +static InputStream *get_input_stream(OutputStream *ost)
 +{
 +    if (ost->source_index >= 0)
 +        return input_streams[ost->source_index];
 +
 +    if (ost->filter) {
 +        FilterGraph *fg = ost->filter->graph;
 +        int i;
 +
 +        for (i = 0; i < fg->nb_inputs; i++)
 +            if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
 +                return fg->inputs[i]->ist;
 +    }
 +
 +    return NULL;
 +}
 +
 +static int transcode_init(void)
 +{
 +    int ret = 0, i, j, k;
 +    AVFormatContext *oc;
 +    AVCodecContext *codec, *icodec;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    char error[1024];
 +    int want_sdp = 1;
 +
 +    /* init framerate emulation */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = input_files[i];
 +        if (ifile->rate_emu)
 +            for (j = 0; j < ifile->nb_streams; j++)
 +                input_streams[j + ifile->ist_index]->start = av_gettime();
 +    }
 +
 +    /* output stream init */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i]->ctx;
 +        if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
 +            av_dump_format(oc, i, oc->filename, 1);
 +            av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
 +            return AVERROR(EINVAL);
 +        }
 +    }
 +
 +    /* init complex filtergraphs */
 +    for (i = 0; i < nb_filtergraphs; i++)
 +        if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
 +            return ret;
 +
 +    /* for each output stream, we compute the right encoding parameters */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        oc  = output_files[ost->file_index]->ctx;
 +        ist = get_input_stream(ost);
 +
 +        if (ost->attachment_filename)
 +            continue;
 +
 +        codec  = ost->st->codec;
 +
 +        if (ist) {
 +            icodec = ist->st->codec;
 +
 +            ost->st->disposition          = ist->st->disposition;
 +            codec->bits_per_raw_sample    = icodec->bits_per_raw_sample;
 +            codec->chroma_sample_location = icodec->chroma_sample_location;
 +        }
 +
 +        if (ost->stream_copy) {
 +            uint64_t extra_size;
 +
 +            av_assert0(ist && !ost->filter);
 +
 +            extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
 +
 +            if (extra_size > INT_MAX) {
 +                return AVERROR(EINVAL);
 +            }
 +
 +            /* if stream_copy is selected, no need to decode or encode */
 +            codec->codec_id   = icodec->codec_id;
 +            codec->codec_type = icodec->codec_type;
 +
 +            if (!codec->codec_tag) {
 +                if (!oc->oformat->codec_tag ||
 +                     av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
 +                     av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
 +                    codec->codec_tag = icodec->codec_tag;
 +            }
 +
 +            codec->bit_rate       = icodec->bit_rate;
 +            codec->rc_max_rate    = icodec->rc_max_rate;
 +            codec->rc_buffer_size = icodec->rc_buffer_size;
 +            codec->field_order    = icodec->field_order;
 +            codec->extradata      = av_mallocz(extra_size);
 +            if (!codec->extradata) {
 +                return AVERROR(ENOMEM);
 +            }
 +            memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
 +            codec->extradata_size= icodec->extradata_size;
 +
 +            codec->time_base = ist->st->time_base;
 +            /*
 +             * Avi is a special case here because it supports variable fps but
 +             * having the fps and timebase differe significantly adds quite some
 +             * overhead
 +             */
 +            if(!strcmp(oc->oformat->name, "avi")) {
 +                if (   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
 +                                 && av_q2d(ist->st->time_base) < 1.0/500
 +                    || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                    codec->time_base.den *= 2;
 +                    codec->ticks_per_frame = 2;
 +                }
 +            } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
 +                      && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
 +                      && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
 +            ) {
 +                if(   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
 +                                && av_q2d(ist->st->time_base) < 1.0/500
 +                   || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                }
 +            }
 +            av_reduce(&codec->time_base.num, &codec->time_base.den,
 +                        codec->time_base.num, codec->time_base.den, INT_MAX);
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (audio_volume != 256) {
 +                    av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
 +                    exit_program(1);
 +                }
 +                codec->channel_layout     = icodec->channel_layout;
 +                codec->sample_rate        = icodec->sample_rate;
 +                codec->channels           = icodec->channels;
 +                codec->frame_size         = icodec->frame_size;
 +                codec->audio_service_type = icodec->audio_service_type;
 +                codec->block_align        = icodec->block_align;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                codec->pix_fmt            = icodec->pix_fmt;
 +                codec->width              = icodec->width;
 +                codec->height             = icodec->height;
 +                codec->has_b_frames       = icodec->has_b_frames;
 +                if (!codec->sample_aspect_ratio.num) {
 +                    codec->sample_aspect_ratio   =
 +                    ost->st->sample_aspect_ratio =
 +                        ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
 +                        ist->st->codec->sample_aspect_ratio.num ?
 +                        ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
 +                }
 +                ost->st->avg_frame_rate = ist->st->avg_frame_rate;
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->width  = icodec->width;
 +                codec->height = icodec->height;
 +                break;
 +            case AVMEDIA_TYPE_DATA:
 +            case AVMEDIA_TYPE_ATTACHMENT:
 +                break;
 +            default:
 +                abort();
 +            }
 +        } else {
 +            if (!ost->enc)
 +                ost->enc = avcodec_find_encoder(codec->codec_id);
 +            if (!ost->enc) {
 +                /* should only happen when a default codec is not present. */
 +                snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
 +                         avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +
 +            if (ist)
 +                ist->decoding_needed = 1;
 +            ost->encoding_needed = 1;
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                ost->fifo = av_fifo_alloc(1024);
 +                if (!ost->fifo) {
 +                    return AVERROR(ENOMEM);
 +                }
++
 +                if (!codec->sample_rate)
 +                    codec->sample_rate = icodec->sample_rate;
 +                choose_sample_rate(ost->st, ost->enc);
 +                codec->time_base = (AVRational){ 1, codec->sample_rate };
 +
 +                if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
 +                    codec->sample_fmt = icodec->sample_fmt;
 +                choose_sample_fmt(ost->st, ost->enc);
 +
 +                if (ost->audio_channels_mapped) {
 +                    /* the requested output channel is set to the number of
 +                     * -map_channel only if no -ac are specified */
 +                    if (!codec->channels) {
 +                        codec->channels       = ost->audio_channels_mapped;
 +                        codec->channel_layout = av_get_default_channel_layout(codec->channels);
 +                        if (!codec->channel_layout) {
 +                            av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n");
 +                            exit_program(1);
 +                        }
 +                    }
 +                    /* fill unused channel mapping with -1 (which means a muted
 +                     * channel in case the number of output channels is bigger
 +                     * than the number of mapped channel) */
 +                    for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++)
 +                        ost->audio_channels_map[j] = -1;
 +                } else if (!codec->channels) {
 +                    codec->channels = icodec->channels;
 +                    codec->channel_layout = icodec->channel_layout;
 +                }
 +                if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
 +                    codec->channel_layout = 0;
 +
++
++//                 ost->audio_resample       = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
++//                 ost->audio_resample      |=    codec->sample_fmt     != icodec->sample_fmt
++//                                             || codec->channel_layout != icodec->channel_layout;
++                icodec->request_channels  = codec-> channels;
 +                ost->resample_sample_fmt  = icodec->sample_fmt;
 +                ost->resample_sample_rate = icodec->sample_rate;
 +                ost->resample_channels    = icodec->channels;
++                ost->resample_channel_layout = icodec->channel_layout;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                if (!ost->filter) {
 +                    FilterGraph *fg;
 +                    fg = init_simple_filtergraph(ist, ost);
 +                    if (configure_video_filters(fg)) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
 +                        exit(1);
 +                    }
 +                }
 +
 +                if (ist && !ost->frame_rate.num)
 +                    ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
 +                if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
 +                    int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
 +                    ost->frame_rate = ost->enc->supported_framerates[idx];
 +                }
 +                codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
 +                if (   av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
 +                   && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
 +                    av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
 +                                               "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
 +                }
 +                for (j = 0; j < ost->forced_kf_count; j++)
 +                    ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
 +                                                         AV_TIME_BASE_Q,
 +                                                         codec->time_base);
 +
 +                codec->width  = ost->filter->filter->inputs[0]->w;
 +                codec->height = ost->filter->filter->inputs[0]->h;
 +                codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
 +                    ost->frame_aspect_ratio ? // overridden by the -aspect cli option
 +                    av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
 +                    ost->filter->filter->inputs[0]->sample_aspect_ratio;
 +                codec->pix_fmt = ost->filter->filter->inputs[0]->format;
 +
 +                if (codec->width   != icodec->width  ||
 +                    codec->height  != icodec->height ||
 +                    codec->pix_fmt != icodec->pix_fmt) {
 +                    codec->bits_per_raw_sample = frame_bits_per_raw_sample;
 +                }
 +
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->time_base = (AVRational){1, 1000};
 +                break;
 +            default:
 +                abort();
 +                break;
 +            }
 +            /* two pass mode */
 +            if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
 +                char logfilename[1024];
 +                FILE *f;
 +
 +                snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
 +                         pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
 +                         i);
 +                if (!strcmp(ost->enc->name, "libx264")) {
 +                    av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
 +                } else {
 +                    if (codec->flags & CODEC_FLAG_PASS2) {
 +                        char  *logbuffer;
 +                        size_t logbuffer_size;
 +                        if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
 +                            av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
 +                                logfilename);
 +                            exit_program(1);
 +                        }
 +                        codec->stats_in = logbuffer;
 +                    }
 +                    if (codec->flags & CODEC_FLAG_PASS1) {
 +                        f = fopen(logfilename, "wb");
 +                        if (!f) {
 +                            av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
 +                                logfilename, strerror(errno));
 +                            exit_program(1);
 +                        }
 +                        ost->logfile = f;
 +                    }
 +                }
 +            }
 +        }
 +    }
 +
 +    /* open each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        if (ost->encoding_needed) {
 +            AVCodec      *codec = ost->enc;
 +            AVCodecContext *dec = NULL;
 +
 +            if ((ist = get_input_stream(ost)))
 +                dec = ist->st->codec;
 +            if (dec && dec->subtitle_header) {
 +                ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
 +                if (!ost->st->codec->subtitle_header) {
 +                    ret = AVERROR(ENOMEM);
 +                    goto dump_format;
 +                }
 +                memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
 +                ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
 +            }
 +            if (!av_dict_get(ost->opts, "threads", NULL, 0))
 +                av_dict_set(&ost->opts, "threads", "auto", 0);
 +            if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
 +                snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
 +                        ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +            assert_codec_experimental(ost->st->codec, 1);
 +            assert_avoptions(ost->opts);
 +            if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
 +                av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
 +                                             " It takes bits/s as argument, not kbits/s\n");
 +            extra_size += ost->st->codec->extradata_size;
 +
 +            if (ost->st->codec->me_threshold)
 +                input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
 +        }
 +    }
 +
 +    /* init input streams */
 +    for (i = 0; i < nb_input_streams; i++)
 +        if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
 +            goto dump_format;
 +
 +    /* discard unused programs */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = input_files[i];
 +        for (j = 0; j < ifile->ctx->nb_programs; j++) {
 +            AVProgram *p = ifile->ctx->programs[j];
 +            int discard  = AVDISCARD_ALL;
 +
 +            for (k = 0; k < p->nb_stream_indexes; k++)
 +                if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
 +                    discard = AVDISCARD_DEFAULT;
 +                    break;
 +                }
 +            p->discard = discard;
 +        }
 +    }
 +
 +    /* open files and write file headers */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i]->ctx;
 +        oc->interrupt_callback = int_cb;
 +        if (avformat_write_header(oc, &output_files[i]->opts) < 0) {
 +            snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
 +            ret = AVERROR(EINVAL);
 +            goto dump_format;
 +        }
 +//         assert_avoptions(output_files[i]->opts);
 +        if (strcmp(oc->oformat->name, "rtp")) {
 +            want_sdp = 0;
 +        }
 +    }
 +
 + dump_format:
 +    /* dump the file output parameters - cannot be done before in case
 +       of stream copy */
 +    for (i = 0; i < nb_output_files; i++) {
 +        av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
 +    }
 +
 +    /* dump the stream mapping */
 +    av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +
 +        for (j = 0; j < ist->nb_filters; j++) {
 +            AVFilterLink *link = ist->filters[j]->filter->outputs[0];
 +            if (ist->filters[j]->graph->graph_desc) {
 +                av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d (%s) -> %s",
 +                       ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
 +                       link->dst->filter->name);
 +                if (link->dst->input_count > 1)
 +                    av_log(NULL, AV_LOG_INFO, ":%s", link->dstpad->name);
 +                if (nb_filtergraphs > 1)
 +                    av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
 +                av_log(NULL, AV_LOG_INFO, "\n");
 +            }
 +        }
 +    }
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +
 +        if (ost->attachment_filename) {
 +            /* an attached file */
 +            av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
 +                   ost->attachment_filename, ost->file_index, ost->index);
 +            continue;
 +        }
 +
 +        if (ost->filter && ost->filter->graph->graph_desc) {
 +            /* output from a complex graph */
 +            AVFilterLink *link = ost->filter->filter->inputs[0];
 +            av_log(NULL, AV_LOG_INFO, "  %s", link->src->filter->name);
 +            if (link->src->output_count > 1)
 +                av_log(NULL, AV_LOG_INFO, ":%s", link->srcpad->name);
 +            if (nb_filtergraphs > 1)
 +                av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
 +
 +            av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
 +                   ost->index, ost->enc ? ost->enc->name : "?");
 +            continue;
 +        }
 +
 +        av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
 +               input_streams[ost->source_index]->file_index,
 +               input_streams[ost->source_index]->st->index,
 +               ost->file_index,
 +               ost->index);
 +        if (ost->audio_channels_mapped) {
 +            av_log(NULL, AV_LOG_INFO, " [ch:");
 +            for (j = 0; j < ost->audio_channels_mapped; j++)
 +                if (ost->audio_channels_map[j] == -1)
 +                    av_log(NULL, AV_LOG_INFO, " M");
 +                else
 +                    av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]);
 +            av_log(NULL, AV_LOG_INFO, "]");
 +        }
 +        if (ost->sync_ist != input_streams[ost->source_index])
 +            av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
 +                   ost->sync_ist->file_index,
 +                   ost->sync_ist->st->index);
 +        if (ost->stream_copy)
 +            av_log(NULL, AV_LOG_INFO, " (copy)");
 +        else
 +            av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
 +                   input_streams[ost->source_index]->dec->name : "?",
 +                   ost->enc ? ost->enc->name : "?");
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +    }
 +
 +    if (ret) {
 +        av_log(NULL, AV_LOG_ERROR, "%s\n", error);
 +        return ret;
 +    }
 +
 +    if (want_sdp) {
 +        print_sdp();
 +    }
 +
 +    return 0;
 +}
 +
 +/*
 + * The following code is the main loop of the file converter
 + */
 +static int transcode(void)
 +{
 +    int ret, i;
 +    AVFormatContext *is, *os;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    uint8_t *no_packet;
 +    int no_packet_count = 0;
 +    int64_t timer_start;
 +    int key;
 +
 +    if (!(no_packet = av_mallocz(nb_input_files)))
 +        exit_program(1);
 +
 +    ret = transcode_init();
 +    if (ret < 0)
 +        goto fail;
 +
 +    if (!using_stdin) {
 +        av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
 +    }
 +
 +    timer_start = av_gettime();
 +
 +    for (; received_sigterm == 0;) {
 +        int file_index, ist_index, past_recording_time = 1;
 +        AVPacket pkt;
 +        int64_t ipts_min;
 +        int64_t cur_time= av_gettime();
 +
 +        ipts_min = INT64_MAX;
 +        /* if 'q' pressed, exits */
 +        if (!using_stdin) {
 +            static int64_t last_time;
 +            if (received_nb_signals)
 +                break;
 +            /* read_key() returns 0 on EOF */
 +            if(cur_time - last_time >= 100000 && !run_as_daemon){
 +                key =  read_key();
 +                last_time = cur_time;
 +            }else
 +                key = -1;
 +            if (key == 'q')
 +                break;
 +            if (key == '+') av_log_set_level(av_log_get_level()+10);
 +            if (key == '-') av_log_set_level(av_log_get_level()-10);
 +            if (key == 's') qp_hist     ^= 1;
 +            if (key == 'h'){
 +                if (do_hex_dump){
 +                    do_hex_dump = do_pkt_dump = 0;
 +                } else if(do_pkt_dump){
 +                    do_hex_dump = 1;
 +                } else
 +                    do_pkt_dump = 1;
 +                av_log_set_level(AV_LOG_DEBUG);
 +            }
 +            if (key == 'c' || key == 'C'){
 +                char buf[4096], target[64], command[256], arg[256] = {0};
 +                double time;
 +                int k, n = 0;
 +                fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
 +                i = 0;
 +                while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
 +                    if (k > 0)
 +                        buf[i++] = k;
 +                buf[i] = 0;
 +                if (k > 0 &&
 +                    (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
 +                    av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
 +                           target, time, command, arg);
 +                    for (i = 0; i < nb_filtergraphs; i++) {
 +                        FilterGraph *fg = filtergraphs[i];
 +                        if (fg->graph) {
 +                            if (time < 0) {
 +                                ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
 +                                                                  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
 +                                fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
 +                            } else {
 +                                ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
 +                            }
 +                        }
 +                    }
 +                } else {
 +                    av_log(NULL, AV_LOG_ERROR,
 +                           "Parse error, at least 3 arguments were expected, "
 +                           "only %d given in string '%s'\n", n, buf);
 +                }
 +            }
 +            if (key == 'd' || key == 'D'){
 +                int debug=0;
 +                if(key == 'D') {
 +                    debug = input_streams[0]->st->codec->debug<<1;
 +                    if(!debug) debug = 1;
 +                    while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
 +                        debug += debug;
 +                }else
 +                    if(scanf("%d", &debug)!=1)
 +                        fprintf(stderr,"error parsing debug value\n");
 +                for(i=0;i<nb_input_streams;i++) {
 +                    input_streams[i]->st->codec->debug = debug;
 +                }
 +                for(i=0;i<nb_output_streams;i++) {
 +                    ost = output_streams[i];
 +                    ost->st->codec->debug = debug;
 +                }
 +                if(debug) av_log_set_level(AV_LOG_DEBUG);
 +                fprintf(stderr,"debug=%d\n", debug);
 +            }
 +            if (key == '?'){
 +                fprintf(stderr, "key    function\n"
 +                                "?      show this help\n"
 +                                "+      increase verbosity\n"
 +                                "-      decrease verbosity\n"
 +                                "c      Send command to filtergraph\n"
 +                                "D      cycle through available debug modes\n"
 +                                "h      dump packets/hex press to cycle through the 3 states\n"
 +                                "q      quit\n"
 +                                "s      Show QP histogram\n"
 +                );
 +            }
 +        }
 +
 +        /* check if there's any stream where output is still needed */
 +        for (i = 0; i < nb_output_streams; i++) {
 +            OutputFile *of;
 +            ost = output_streams[i];
 +            of  = output_files[ost->file_index];
 +            os  = output_files[ost->file_index]->ctx;
 +            if (ost->is_past_recording_time ||
 +                (os->pb && avio_tell(os->pb) >= of->limit_filesize))
 +                continue;
 +            if (ost->frame_number >= ost->max_frames) {
 +                int j;
 +                for (j = 0; j < of->ctx->nb_streams; j++)
 +                    output_streams[of->ost_index + j]->is_past_recording_time = 1;
 +                continue;
 +            }
 +            past_recording_time = 0;
 +        }
 +        if (past_recording_time)
 +            break;
 +
 +        /* select the stream that we must read now by looking at the
 +           smallest output pts */
 +        file_index = -1;
 +        for (i = 0; i < nb_input_streams; i++) {
 +            int64_t ipts;
 +            ist = input_streams[i];
 +            ipts = ist->pts;
 +            if (ist->discard || no_packet[ist->file_index])
 +                continue;
 +            if (!input_files[ist->file_index]->eof_reached) {
 +                if (ipts < ipts_min) {
 +                    ipts_min = ipts;
 +                    file_index = ist->file_index;
 +                }
 +            }
 +        }
 +        /* if none, if is finished */
 +        if (file_index < 0) {
 +            if (no_packet_count) {
 +                no_packet_count = 0;
 +                memset(no_packet, 0, nb_input_files);
 +                usleep(10000);
 +                continue;
 +            }
 +            break;
 +        }
 +
 +        /* read a frame from it and output it in the fifo */
 +        is  = input_files[file_index]->ctx;
 +        ret = av_read_frame(is, &pkt);
 +        if (ret == AVERROR(EAGAIN)) {
 +            no_packet[file_index] = 1;
 +            no_packet_count++;
 +            continue;
 +        }
 +        if (ret < 0) {
 +            input_files[file_index]->eof_reached = 1;
 +
 +            for (i = 0; i < input_files[file_index]->nb_streams; i++) {
 +                ist = input_streams[input_files[file_index]->ist_index + i];
 +                if (ist->decoding_needed)
 +                    output_packet(ist, NULL);
 +            }
 +
 +            if (opt_shortest)
 +                break;
 +            else
 +                continue;
 +        }
 +
 +        no_packet_count = 0;
 +        memset(no_packet, 0, nb_input_files);
 +
 +        if (do_pkt_dump) {
 +            av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
 +                             is->streams[pkt.stream_index]);
 +        }
 +        /* the following test is needed in case new streams appear
 +           dynamically in stream : we ignore them */
 +        if (pkt.stream_index >= input_files[file_index]->nb_streams)
 +            goto discard_packet;
 +        ist_index = input_files[file_index]->ist_index + pkt.stream_index;
 +        ist = input_streams[ist_index];
 +        if (ist->discard)
 +            goto discard_packet;
 +
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts *= ist->ts_scale;
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts *= ist->ts_scale;
 +
 +        if (debug_ts) {
 +            av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
 +                    "next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
 +                    ist_index, av_get_media_type_string(ist->st->codec->codec_type),
 +                    av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &ist->st->time_base),
 +                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
 +                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
 +                    input_files[ist->file_index]->ts_offset);
 +        }
 +
 +        if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
 +            int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
 +            int64_t delta   = pkt_dts - ist->next_dts;
 +            if (is->iformat->flags & AVFMT_TS_DISCONT) {
 +            if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
 +                (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
 +                 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +                pkt_dts+1<ist->pts){
 +                input_files[ist->file_index]->ts_offset -= delta;
 +                av_log(NULL, AV_LOG_DEBUG,
 +                       "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
 +                       delta, input_files[ist->file_index]->ts_offset);
 +                pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +            }
 +            } else {
 +                if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                    (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +                     pkt_dts+1<ist->pts){
 +                    av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
 +                    pkt.dts = AV_NOPTS_VALUE;
 +                }
 +                if (pkt.pts != AV_NOPTS_VALUE){
 +                    int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
 +                    delta   = pkt_pts - ist->next_dts;
 +                    if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                        (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +                        pkt_pts+1<ist->pts) {
 +                        av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
 +                        pkt.pts = AV_NOPTS_VALUE;
 +                    }
 +                }
 +            }
 +        }
 +
 +        // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
 +        if (output_packet(ist, &pkt) < 0 ||
 +            ((ret = poll_filters()) < 0 && ret != AVERROR_EOF)) {
 +            av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
 +                   ist->file_index, ist->st->index);
 +            if (exit_on_error)
 +                exit_program(1);
 +            av_free_packet(&pkt);
 +            continue;
 +        }
 +
 +    discard_packet:
 +        av_free_packet(&pkt);
 +
 +        /* dump report by using the output first video and audio streams */
 +        print_report(0, timer_start, cur_time);
 +    }
 +
 +    /* at the end of stream, we must flush the decoder buffers */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +        if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
 +            output_packet(ist, NULL);
 +        }
 +    }
 +    poll_filters();
 +    flush_encoders();
 +
 +    term_exit();
 +
 +    /* write the trailer if needed and close file */
 +    for (i = 0; i < nb_output_files; i++) {
 +        os = output_files[i]->ctx;
 +        av_write_trailer(os);
 +    }
 +
 +    /* dump report by using the first video and audio streams */
 +    print_report(1, timer_start, av_gettime());
 +
 +    /* close each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        if (ost->encoding_needed) {
 +            av_freep(&ost->st->codec->stats_in);
 +            avcodec_close(ost->st->codec);
 +        }
 +    }
 +
 +    /* close each decoder */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +        if (ist->decoding_needed) {
 +            avcodec_close(ist->st->codec);
 +        }
 +    }
 +
 +    /* finished ! */
 +    ret = 0;
 +
 + fail:
 +    av_freep(&no_packet);
 +
 +    if (output_streams) {
 +        for (i = 0; i < nb_output_streams; i++) {
 +            ost = output_streams[i];
 +            if (ost) {
 +                if (ost->stream_copy)
 +                    av_freep(&ost->st->codec->extradata);
 +                if (ost->logfile) {
 +                    fclose(ost->logfile);
 +                    ost->logfile = NULL;
 +                }
 +                av_fifo_free(ost->fifo); /* works even if fifo is not
 +                                             initialized but set to zero */
 +                av_freep(&ost->st->codec->subtitle_header);
 +                av_free(ost->forced_kf_pts);
 +                swr_free(&ost->swr);
 +                av_dict_free(&ost->opts);
 +            }
 +        }
 +    }
 +    return ret;
 +}
 +
 +static int opt_frame_crop(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
 +    return AVERROR(EINVAL);
 +}
 +
 +static int opt_pad(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
 +    return -1;
 +}
 +
 +static int opt_video_channel(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
 +    return opt_default("channel", arg);
 +}
 +
 +static int opt_video_standard(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
 +    return opt_default("standard", arg);
 +}
 +
 +static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    audio_codec_name = arg;
 +    return parse_option(o, "codec:a", arg, options);
 +}
 +
 +static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    video_codec_name = arg;
 +    return parse_option(o, "codec:v", arg, options);
 +}
 +
 +static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    subtitle_codec_name = arg;
 +    return parse_option(o, "codec:s", arg, options);
 +}
 +
 +static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "codec:d", arg, options);
 +}
 +
 +static int opt_map(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    StreamMap *m = NULL;
 +    int i, negative = 0, file_idx;
 +    int sync_file_idx = -1, sync_stream_idx = 0;
 +    char *p, *sync;
 +    char *map;
 +
 +    if (*arg == '-') {
 +        negative = 1;
 +        arg++;
 +    }
 +    map = av_strdup(arg);
 +
 +    /* parse sync stream first, just pick first matching stream */
 +    if (sync = strchr(map, ',')) {
 +        *sync = 0;
 +        sync_file_idx = strtol(sync + 1, &sync, 0);
 +        if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
 +            exit_program(1);
 +        }
 +        if (*sync)
 +            sync++;
 +        for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
 +            if (check_stream_specifier(input_files[sync_file_idx]->ctx,
 +                                       input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
 +                sync_stream_idx = i;
 +                break;
 +            }
 +        if (i == input_files[sync_file_idx]->nb_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
 +                                       "match any streams.\n", arg);
 +            exit_program(1);
 +        }
 +    }
 +
 +
 +    if (map[0] == '[') {
 +        /* this mapping refers to lavfi output */
 +        const char *c = map + 1;
 +        o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
 +                                    &o->nb_stream_maps, o->nb_stream_maps + 1);
 +        m = &o->stream_maps[o->nb_stream_maps - 1];
 +        m->linklabel = av_get_token(&c, "]");
 +        if (!m->linklabel) {
 +            av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
 +            exit_program(1);
 +        }
 +    } else {
 +        file_idx = strtol(map, &p, 0);
 +        if (file_idx >= nb_input_files || file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
 +            exit_program(1);
 +        }
 +        if (negative)
 +            /* disable some already defined maps */
 +            for (i = 0; i < o->nb_stream_maps; i++) {
 +                m = &o->stream_maps[i];
 +                if (file_idx == m->file_index &&
 +                    check_stream_specifier(input_files[m->file_index]->ctx,
 +                                           input_files[m->file_index]->ctx->streams[m->stream_index],
 +                                           *p == ':' ? p + 1 : p) > 0)
 +                    m->disabled = 1;
 +            }
 +        else
 +            for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
 +                if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
 +                            *p == ':' ? p + 1 : p) <= 0)
 +                    continue;
 +                o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
 +                                            &o->nb_stream_maps, o->nb_stream_maps + 1);
 +                m = &o->stream_maps[o->nb_stream_maps - 1];
 +
 +                m->file_index   = file_idx;
 +                m->stream_index = i;
 +
 +                if (sync_file_idx >= 0) {
 +                    m->sync_file_index   = sync_file_idx;
 +                    m->sync_stream_index = sync_stream_idx;
 +                } else {
 +                    m->sync_file_index   = file_idx;
 +                    m->sync_stream_index = i;
 +                }
 +            }
 +    }
 +
 +    if (!m) {
 +        av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
 +        exit_program(1);
 +    }
 +
 +    av_freep(&map);
 +    return 0;
 +}
 +
 +static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
 +                                &o->nb_attachments, o->nb_attachments + 1);
 +    o->attachments[o->nb_attachments - 1] = arg;
 +    return 0;
 +}
 +
 +static int opt_map_channel(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int n;
 +    AVStream *st;
 +    AudioChannelMap *m;
 +
 +    o->audio_channel_maps =
 +        grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
 +                   &o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
 +    m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
 +
 +    /* muted channel syntax */
 +    n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
 +    if ((n == 1 || n == 3) && m->channel_idx == -1) {
 +        m->file_idx = m->stream_idx = -1;
 +        if (n == 1)
 +            m->ofile_idx = m->ostream_idx = -1;
 +        return 0;
 +    }
 +
 +    /* normal syntax */
 +    n = sscanf(arg, "%d.%d.%d:%d.%d",
 +               &m->file_idx,  &m->stream_idx, &m->channel_idx,
 +               &m->ofile_idx, &m->ostream_idx);
 +
 +    if (n != 3 && n != 5) {
 +        av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
 +               "[file.stream.channel|-1][:syncfile:syncstream]\n");
 +        exit_program(1);
 +    }
 +
 +    if (n != 5) // only file.stream.channel specified
 +        m->ofile_idx = m->ostream_idx = -1;
 +
 +    /* check input */
 +    if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
 +               m->file_idx);
 +        exit_program(1);
 +    }
 +    if (m->stream_idx < 0 ||
 +        m->stream_idx >= input_files[m->file_idx]->nb_streams) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
 +    if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
 +               m->file_idx, m->stream_idx, m->channel_idx);
 +        exit_program(1);
 +    }
 +    return 0;
 +}
 +
 +/**
 + * Parse a metadata specifier in arg.
 + * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
 + * @param index for type c/p, chapter/program index is written here
 + * @param stream_spec for type s, the stream specifier is written here
 + */
 +static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
 +{
 +    if (*arg) {
 +        *type = *arg;
 +        switch (*arg) {
 +        case 'g':
 +            break;
 +        case 's':
 +            if (*(++arg) && *arg != ':') {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
 +                exit_program(1);
 +            }
 +            *stream_spec = *arg == ':' ? arg + 1 : "";
 +            break;
 +        case 'c':
 +        case 'p':
 +            if (*(++arg) == ':')
 +                *index = strtol(++arg, NULL, 0);
 +            break;
 +        default:
 +            av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
 +            exit_program(1);
 +        }
 +    } else
 +        *type = 'g';
 +}
 +
 +static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
 +{
 +    AVDictionary **meta_in = NULL;
 +    AVDictionary **meta_out = NULL;
 +    int i, ret = 0;
 +    char type_in, type_out;
 +    const char *istream_spec = NULL, *ostream_spec = NULL;
 +    int idx_in = 0, idx_out = 0;
 +
 +    parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
 +    parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
 +
 +    if (!ic) {
 +        if (type_out == 'g' || !*outspec)
 +            o->metadata_global_manual = 1;
 +        if (type_out == 's' || !*outspec)
 +            o->metadata_streams_manual = 1;
 +        if (type_out == 'c' || !*outspec)
 +            o->metadata_chapters_manual = 1;
 +        return 0;
 +    }
 +
 +    if (type_in == 'g' || type_out == 'g')
 +        o->metadata_global_manual = 1;
 +    if (type_in == 's' || type_out == 's')
 +        o->metadata_streams_manual = 1;
 +    if (type_in == 'c' || type_out == 'c')
 +        o->metadata_chapters_manual = 1;
 +
 +#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
 +    if ((index) < 0 || (index) >= (nb_elems)) {\
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
 +                (desc), (index));\
 +        exit_program(1);\
 +    }
 +
 +#define SET_DICT(type, meta, context, index)\
 +        switch (type) {\
 +        case 'g':\
 +            meta = &context->metadata;\
 +            break;\
 +        case 'c':\
 +            METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
 +            meta = &context->chapters[index]->metadata;\
 +            break;\
 +        case 'p':\
 +            METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
 +            meta = &context->programs[index]->metadata;\
 +            break;\
 +        }\
 +
 +    SET_DICT(type_in, meta_in, ic, idx_in);
 +    SET_DICT(type_out, meta_out, oc, idx_out);
 +
 +    /* for input streams choose first matching stream */
 +    if (type_in == 's') {
 +        for (i = 0; i < ic->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
 +                meta_in = &ic->streams[i]->metadata;
 +                break;
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +        if (!meta_in) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (type_out == 's') {
 +        for (i = 0; i < oc->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
 +                meta_out = &oc->streams[i]->metadata;
 +                av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +    } else
 +        av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char buf[128];
 +    int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
 +    struct tm time = *gmtime((time_t*)&recording_timestamp);
 +    strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
 +    parse_option(o, "metadata", buf, options);
 +
 +    av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 +                                 "tag instead.\n", opt);
 +    return 0;
 +}
 +
 +static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 +{
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +
 +    codec = encoder ?
 +        avcodec_find_encoder_by_name(name) :
 +        avcodec_find_decoder_by_name(name);
 +    if (!codec) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    if (codec->type != type) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    return codec;
 +}
 +
 +static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
 +    if (codec_name) {
 +        AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
 +        st->codec->codec_id = codec->id;
 +        return codec;
 +    } else
 +        return avcodec_find_decoder(st->codec->codec_id);
 +}
 +
 +/**
 + * Add all the streams from the given input file to the global
 + * list of input streams.
 + */
 +static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
 +{
 +    int i;
 +    char *next, *codec_tag = NULL;
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        AVCodecContext *dec = st->codec;
 +        InputStream *ist = av_mallocz(sizeof(*ist));
 +
 +        if (!ist)
 +            exit_program(1);
 +
 +        input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
 +        input_streams[nb_input_streams - 1] = ist;
 +
 +        ist->st = st;
 +        ist->file_index = nb_input_files;
 +        ist->discard = 1;
 +        st->discard  = AVDISCARD_ALL;
 +        ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
 +
 +        ist->ts_scale = 1.0;
 +        MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
 +        if (codec_tag) {
 +            uint32_t tag = strtol(codec_tag, &next, 0);
 +            if (*next)
 +                tag = AV_RL32(codec_tag);
 +            st->codec->codec_tag = tag;
 +        }
 +
 +        ist->dec = choose_decoder(o, ic, st);
 +
 +        switch (dec->codec_type) {
 +        case AVMEDIA_TYPE_VIDEO:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            if (dec->lowres) {
 +                dec->flags |= CODEC_FLAG_EMU_EDGE;
 +            }
 +
 +            ist->resample_height  = dec->height;
 +            ist->resample_width   = dec->width;
 +            ist->resample_pix_fmt = dec->pix_fmt;
 +
 +            break;
 +        case AVMEDIA_TYPE_AUDIO:
 +        case AVMEDIA_TYPE_DATA:
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            break;
 +        case AVMEDIA_TYPE_ATTACHMENT:
 +        case AVMEDIA_TYPE_UNKNOWN:
 +            break;
 +        default:
 +            abort();
 +        }
 +    }
 +}
 +
 +static void assert_file_overwrite(const char *filename)
 +{
 +    if ((!file_overwrite || no_file_overwrite) &&
 +        (strchr(filename, ':') == NULL || filename[1] == ':' ||
 +         av_strstart(filename, "file:", NULL))) {
 +        if (avio_check(filename, 0) == 0) {
 +            if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
 +                fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
 +                fflush(stderr);
 +                term_exit();
 +                signal(SIGINT, SIG_DFL);
 +                if (!read_yesno()) {
 +                    av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
 +                    exit_program(1);
 +                }
 +                term_init();
 +            }
 +            else {
 +                av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
 +                exit_program(1);
 +            }
 +        }
 +    }
 +}
 +
 +static void dump_attachment(AVStream *st, const char *filename)
 +{
 +    int ret;
 +    AVIOContext *out = NULL;
 +    AVDictionaryEntry *e;
 +
 +    if (!st->codec->extradata_size) {
 +        av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
 +               nb_input_files - 1, st->index);
 +        return;
 +    }
 +    if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
 +        filename = e->value;
 +    if (!*filename) {
 +        av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
 +               "in stream #%d:%d.\n", nb_input_files - 1, st->index);
 +        exit_program(1);
 +    }
 +
 +    assert_file_overwrite(filename);
 +
 +    if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
 +               filename);
 +        exit_program(1);
 +    }
 +
 +    avio_write(out, st->codec->extradata, st->codec->extradata_size);
 +    avio_flush(out);
 +    avio_close(out);
 +}
 +
 +static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
 +{
 +    AVFormatContext *ic;
 +    AVInputFormat *file_iformat = NULL;
 +    int err, i, ret;
 +    int64_t timestamp;
 +    uint8_t buf[128];
 +    AVDictionary **opts;
 +    int orig_nb_streams;                     // number of streams before avformat_find_stream_info
 +
 +    if (o->format) {
 +        if (!(file_iformat = av_find_input_format(o->format))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    using_stdin |= !strncmp(filename, "pipe:", 5) ||
 +                    !strcmp(filename, "/dev/stdin");
 +
 +    /* get default parameters from command line */
 +    ic = avformat_alloc_context();
 +    if (!ic) {
 +        print_error(filename, AVERROR(ENOMEM));
 +        exit_program(1);
 +    }
 +    if (o->nb_audio_sample_rate) {
 +        snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
 +        av_dict_set(&format_opts, "sample_rate", buf, 0);
 +    }
 +    if (o->nb_audio_channels) {
 +        /* because we set audio_channels based on both the "ac" and
 +         * "channel_layout" options, we need to check that the specified
 +         * demuxer actually has the "channels" option before setting it */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            snprintf(buf, sizeof(buf), "%d",
 +                     o->audio_channels[o->nb_audio_channels - 1].u.i);
 +            av_dict_set(&format_opts, "channels", buf, 0);
 +        }
 +    }
 +    if (o->nb_frame_rates) {
 +        av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_sizes) {
 +        av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_pix_fmts)
 +        av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
 +
 +    ic->video_codec_id   = video_codec_name ?
 +        find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : CODEC_ID_NONE;
 +    ic->audio_codec_id   = audio_codec_name ?
 +        find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : CODEC_ID_NONE;
 +    ic->subtitle_codec_id= subtitle_codec_name ?
 +        find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : CODEC_ID_NONE;
 +    ic->flags |= AVFMT_FLAG_NONBLOCK;
 +    ic->interrupt_callback = int_cb;
 +
 +    /* open the input file with generic avformat function */
 +    err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
 +    if (err < 0) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +    assert_avoptions(format_opts);
 +
 +    /* apply forced codec ids */
 +    for (i = 0; i < ic->nb_streams; i++)
 +        choose_decoder(o, ic, ic->streams[i]);
 +
 +    /* Set AVCodecContext options for avformat_find_stream_info */
 +    opts = setup_find_stream_info_opts(ic, codec_opts);
 +    orig_nb_streams = ic->nb_streams;
 +
 +    /* If not enough info to get the stream parameters, we decode the
 +       first frames to get it. (used in mpeg case for example) */
 +    ret = avformat_find_stream_info(ic, opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
 +        avformat_close_input(&ic);
 +        exit_program(1);
 +    }
 +
 +    timestamp = o->start_time;
 +    /* add the stream start time */
 +    if (ic->start_time != AV_NOPTS_VALUE)
 +        timestamp += ic->start_time;
 +
 +    /* if seeking requested, we execute it */
 +    if (o->start_time != 0) {
 +        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
 +                   filename, (double)timestamp / AV_TIME_BASE);
 +        }
 +    }
 +
 +    /* update the current parameters so that they match the one of the input stream */
 +    add_input_streams(o, ic);
 +
 +    /* dump the file content */
 +    av_dump_format(ic, nb_input_files, filename, 0);
 +
 +    input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
 +    if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
 +        exit_program(1);
 +
 +    input_files[nb_input_files - 1]->ctx        = ic;
 +    input_files[nb_input_files - 1]->ist_index  = nb_input_streams - ic->nb_streams;
 +    input_files[nb_input_files - 1]->ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
 +    input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
 +    input_files[nb_input_files - 1]->rate_emu   = o->rate_emu;
 +
 +    for (i = 0; i < o->nb_dump_attachment; i++) {
 +        int j;
 +
 +        for (j = 0; j < ic->nb_streams; j++) {
 +            AVStream *st = ic->streams[j];
 +
 +            if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
 +                dump_attachment(st, o->dump_attachment[i].u.str);
 +        }
 +    }
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    reset_options(o, 1);
 +    return 0;
 +}
 +
 +static void parse_forced_key_frames(char *kf, OutputStream *ost)
 +{
 +    char *p;
 +    int n = 1, i;
 +
 +    for (p = kf; *p; p++)
 +        if (*p == ',')
 +            n++;
 +    ost->forced_kf_count = n;
 +    ost->forced_kf_pts   = av_malloc(sizeof(*ost->forced_kf_pts) * n);
 +    if (!ost->forced_kf_pts) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
 +        exit_program(1);
 +    }
 +    for (i = 0; i < n; i++) {
 +        p = i ? strchr(p, ',') + 1 : kf;
 +        ost->forced_kf_pts[i] = parse_time_or_die("force_key_frames", p, 1);
 +    }
 +}
 +
 +static uint8_t *get_line(AVIOContext *s)
 +{
 +    AVIOContext *line;
 +    uint8_t *buf;
 +    char c;
 +
 +    if (avio_open_dyn_buf(&line) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
 +        exit_program(1);
 +    }
 +
 +    while ((c = avio_r8(s)) && c != '\n')
 +        avio_w8(line, c);
 +    avio_w8(line, 0);
 +    avio_close_dyn_buf(line, &buf);
 +
 +    return buf;
 +}
 +
 +static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
 +{
 +    int i, ret = 1;
 +    char filename[1000];
 +    const char *base[3] = { getenv("AVCONV_DATADIR"),
 +                            getenv("HOME"),
 +                            AVCONV_DATADIR,
 +                            };
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
 +        if (!base[i])
 +            continue;
 +        if (codec_name) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", codec_name, preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +        if (ret) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +    }
 +    return ret;
 +}
 +
 +static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
 +    if (!codec_name) {
 +        ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
 +                                                  NULL, ost->st->codec->codec_type);
 +        ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
 +    } else if (!strcmp(codec_name, "copy"))
 +        ost->stream_copy = 1;
 +    else {
 +        ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
 +        ost->st->codec->codec_id = ost->enc->id;
 +    }
 +}
 +
 +static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
 +{
 +    OutputStream *ost;
 +    AVStream *st = avformat_new_stream(oc, NULL);
 +    int idx      = oc->nb_streams - 1, ret = 0;
 +    char *bsf = NULL, *next, *codec_tag = NULL;
 +    AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
 +    double qscale = -1;
 +    char *buf = NULL, *arg = NULL, *preset = NULL;
 +    AVIOContext *s = NULL;
 +
 +    if (!st) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
 +        exit_program(1);
 +    }
 +
 +    if (oc->nb_streams - 1 < o->nb_streamid_map)
 +        st->id = o->streamid_map[oc->nb_streams - 1];
 +
 +    output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
 +                                nb_output_streams + 1);
 +    if (!(ost = av_mallocz(sizeof(*ost))))
 +        exit_program(1);
 +    output_streams[nb_output_streams - 1] = ost;
 +
 +    ost->file_index = nb_output_files;
 +    ost->index      = idx;
 +    ost->st         = st;
 +    st->codec->codec_type = type;
 +    choose_encoder(o, oc, ost);
 +    if (ost->enc) {
 +        ost->opts  = filter_codec_opts(codec_opts, ost->enc, oc, st);
 +    }
 +
 +    avcodec_get_context_defaults3(st->codec, ost->enc);
 +    st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
 +
 +    MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
 +    if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
 +        do  {
 +            buf = get_line(s);
 +            if (!buf[0] || buf[0] == '#') {
 +                av_free(buf);
 +                continue;
 +            }
 +            if (!(arg = strchr(buf, '='))) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
 +                exit_program(1);
 +            }
 +            *arg++ = 0;
 +            av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
 +            av_free(buf);
 +        } while (!s->eof_reached);
 +        avio_close(s);
 +    }
 +    if (ret) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Preset %s specified for stream %d:%d, but could not be opened.\n",
 +               preset, ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    ost->max_frames = INT64_MAX;
 +    MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
 +
 +    MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
 +    while (bsf) {
 +        if (next = strchr(bsf, ','))
 +            *next++ = 0;
 +        if (!(bsfc = av_bitstream_filter_init(bsf))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
 +            exit_program(1);
 +        }
 +        if (bsfc_prev)
 +            bsfc_prev->next = bsfc;
 +        else
 +            ost->bitstream_filters = bsfc;
 +
 +        bsfc_prev = bsfc;
 +        bsf       = next;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
 +    if (codec_tag) {
 +        uint32_t tag = strtol(codec_tag, &next, 0);
 +        if (*next)
 +            tag = AV_RL32(codec_tag);
 +        st->codec->codec_tag = tag;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
 +    if (qscale >= 0 || same_quant) {
 +        st->codec->flags |= CODEC_FLAG_QSCALE;
 +        st->codec->global_quality = FF_QP2LAMBDA * qscale;
 +    }
 +
 +    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 +        st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
 +
 +    av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
 +    av_opt_get_int   (swr_opts, "dither_method", 0, &ost->swr_dither_method);
 +    av_opt_get_double(swr_opts, "dither_scale" , 0, &ost->swr_dither_scale);
 +
 +    ost->source_index = source_index;
 +    if (source_index >= 0) {
 +        ost->sync_ist = input_streams[source_index];
 +        input_streams[source_index]->discard = 0;
 +        input_streams[source_index]->st->discard = AVDISCARD_NONE;
 +    }
 +
 +    ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
 +
 +    return ost;
 +}
 +
 +static void parse_matrix_coeffs(uint16_t *dest, const char *str)
 +{
 +    int i;
 +    const char *p = str;
 +    for (i = 0;; i++) {
 +        dest[i] = atoi(p);
 +        if (i == 63)
 +            break;
 +        p = strchr(p, ',');
 +        if (!p) {
 +            av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
 +            exit_program(1);
 +        }
 +        p++;
 +    }
 +}
 +
 +static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *video_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
 +    st  = ost->st;
 +    video_enc = st->codec;
 +
 +    if (!ost->stream_copy) {
 +        const char *p = NULL;
 +        char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
 +        char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
 +        char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
 +        int i;
 +
 +        MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
 +        if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
 +        if (frame_aspect_ratio) {
 +            AVRational q;
 +            if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
 +                q.num <= 0 || q.den <= 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
 +                exit_program(1);
 +            }
 +            ost->frame_aspect_ratio = av_q2d(q);
 +        }
 +
 +        video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
 +        MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
 +        if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
 +            exit_program(1);
 +        }
 +        st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
 +
 +        if (intra_only)
 +            video_enc->gop_size = 0;
 +        MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
 +        if (intra_matrix) {
 +            if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
 +        }
 +        MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
 +        if (inter_matrix) {
 +            if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
 +        for (i = 0; p; i++) {
 +            int start, end, q;
 +            int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
 +            if (e != 3) {
 +                av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
 +                exit_program(1);
 +            }
 +            /* FIXME realloc failure */
 +            video_enc->rc_override =
 +                av_realloc(video_enc->rc_override,
 +                           sizeof(RcOverride) * (i + 1));
 +            video_enc->rc_override[i].start_frame = start;
 +            video_enc->rc_override[i].end_frame   = end;
 +            if (q > 0) {
 +                video_enc->rc_override[i].qscale         = q;
 +                video_enc->rc_override[i].quality_factor = 1.0;
 +            }
 +            else {
 +                video_enc->rc_override[i].qscale         = 0;
 +                video_enc->rc_override[i].quality_factor = -q/100.0;
 +            }
 +            p = strchr(p, '/');
 +            if (p) p++;
 +        }
 +        video_enc->rc_override_count = i;
 +        if (!video_enc->rc_initial_buffer_occupancy)
 +            video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
 +        video_enc->intra_dc_precision = intra_dc_precision - 8;
 +
 +        if (do_psnr)
 +            video_enc->flags|= CODEC_FLAG_PSNR;
 +
 +        /* two pass mode */
 +        if (do_pass) {
 +            if (do_pass & 1) {
 +                video_enc->flags |= CODEC_FLAG_PASS1;
 +            }
 +            if (do_pass & 2) {
 +                video_enc->flags |= CODEC_FLAG_PASS2;
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
 +        if (forced_key_frames)
 +            parse_forced_key_frames(forced_key_frames, ost);
 +
 +        MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
 +
 +        ost->top_field_first = -1;
 +        MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
 +        if (filters)
 +            ost->avfilter = av_strdup(filters);
 +    } else {
 +        MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    int n;
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *audio_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
 +    st  = ost->st;
 +
 +    audio_enc = st->codec;
 +    audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
 +
 +    if (!ost->stream_copy) {
 +        char *sample_fmt = NULL;
 +
 +        MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
 +        if (sample_fmt &&
 +            (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
 +
 +        ost->rematrix_volume=1.0;
 +        MATCH_PER_STREAM_OPT(rematrix_volume, f, ost->rematrix_volume, oc, st);
 +    }
 +
 +    /* check for channel mapping for this audio stream */
 +    for (n = 0; n < o->nb_audio_channel_maps; n++) {
 +        AudioChannelMap *map = &o->audio_channel_maps[n];
 +        InputStream *ist = input_streams[ost->source_index];
 +        if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
 +            (map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
 +            (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
 +            if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
 +                ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
 +            else
 +                av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
 +                       ost->file_index, ost->st->index);
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
 +        exit_program(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
 +    ost->stream_copy = 1;
 +    return ost;
 +}
 +
 +static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *subtitle_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
 +    st  = ost->st;
 +    subtitle_enc = st->codec;
 +
 +    subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 +
 +    MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
 +
 +    return ost;
 +}
 +
 +/* arg format is "output-stream-index:streamid-value". */
 +static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int idx;
 +    char *p;
 +    char idx_str[16];
 +
 +    av_strlcpy(idx_str, arg, sizeof(idx_str));
 +    p = strchr(idx_str, ':');
 +    if (!p) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
 +               arg, opt);
 +        exit_program(1);
 +    }
 +    *p++ = '\0';
 +    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
 +    o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
 +    o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
 +    return 0;
 +}
 +
 +static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
 +{
 +    AVFormatContext *is = ifile->ctx;
 +    AVFormatContext *os = ofile->ctx;
 +    int i;
 +
 +    for (i = 0; i < is->nb_chapters; i++) {
 +        AVChapter *in_ch = is->chapters[i], *out_ch;
 +        int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
 +                                       AV_TIME_BASE_Q, in_ch->time_base);
 +        int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
 +                           av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
 +
 +
 +        if (in_ch->end < ts_off)
 +            continue;
 +        if (rt != INT64_MAX && in_ch->start > rt + ts_off)
 +            break;
 +
 +        out_ch = av_mallocz(sizeof(AVChapter));
 +        if (!out_ch)
 +            return AVERROR(ENOMEM);
 +
 +        out_ch->id        = in_ch->id;
 +        out_ch->time_base = in_ch->time_base;
 +        out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
 +        out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
 +
 +        if (copy_metadata)
 +            av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
 +
 +        os->nb_chapters++;
 +        os->chapters = av_realloc_f(os->chapters, os->nb_chapters, sizeof(AVChapter));
 +        if (!os->chapters)
 +            return AVERROR(ENOMEM);
 +        os->chapters[os->nb_chapters - 1] = out_ch;
 +    }
 +    return 0;
 +}
 +
 +static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
 +{
 +    int i, err;
 +    AVFormatContext *ic = avformat_alloc_context();
 +
 +    ic->interrupt_callback = int_cb;
 +    err = avformat_open_input(&ic, filename, NULL, NULL);
 +    if (err < 0)
 +        return err;
 +    /* copy stream format */
 +    for(i=0;i<ic->nb_streams;i++) {
 +        AVStream *st;
 +        OutputStream *ost;
 +        AVCodec *codec;
 +        AVCodecContext *avctx;
 +
 +        codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
 +        ost   = new_output_stream(o, s, codec->type, -1);
 +        st    = ost->st;
 +        avctx = st->codec;
 +        ost->enc = codec;
 +
 +        // FIXME: a more elegant solution is needed
 +        memcpy(st, ic->streams[i], sizeof(AVStream));
 +        st->cur_dts = 0;
 +        st->info = av_malloc(sizeof(*st->info));
 +        memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
 +        st->codec= avctx;
 +        avcodec_copy_context(st->codec, ic->streams[i]->codec);
 +
 +        if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
 +            choose_sample_fmt(st, codec);
 +        else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
 +            choose_pixel_fmt(st, codec, st->codec->pix_fmt);
 +    }
 +
 +    avformat_close_input(&ic);
 +    return 0;
 +}
 +
 +static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
 +                               AVFormatContext *oc)
 +{
 +    OutputStream *ost;
 +
 +    if (ofilter->out_tmp->filter_ctx->output_pads[ofilter->out_tmp->pad_idx].type != AVMEDIA_TYPE_VIDEO) {
 +        av_log(NULL, AV_LOG_FATAL, "Only video filters are supported currently.\n");
 +        exit_program(1);
 +    }
 +
 +    ost               = new_video_stream(o, oc, -1);
 +    ost->source_index = -1;
 +    ost->filter       = ofilter;
 +
 +    ofilter->ost      = ost;
 +
 +    if (ost->stream_copy) {
 +        av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
 +               "which is fed from a complex filtergraph. Filtering and streamcopy "
 +               "cannot be used together.\n", ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
 +        exit_program(1);
 +    }
 +    avfilter_inout_free(&ofilter->out_tmp);
 +}
 +
 +static void opt_output_file(void *optctx, const char *filename)
 +{
 +    OptionsContext *o = optctx;
 +    AVFormatContext *oc;
 +    int i, j, err;
 +    AVOutputFormat *file_oformat;
 +    OutputStream *ost;
 +    InputStream  *ist;
 +
 +    if (configure_complex_filters() < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
 +        exit_program(1);
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
 +    if (!oc) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +    file_oformat= oc->oformat;
 +    oc->interrupt_callback = int_cb;
 +
 +    /* create streams for all unlabeled output pads */
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        FilterGraph *fg = filtergraphs[i];
 +        for (j = 0; j < fg->nb_outputs; j++) {
 +            OutputFilter *ofilter = fg->outputs[j];
 +
 +            if (!ofilter->out_tmp || ofilter->out_tmp->name)
 +                continue;
 +
 +            switch (ofilter->out_tmp->filter_ctx->output_pads[ofilter->out_tmp->pad_idx].type) {
 +            case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
 +            case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
 +            case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
 +            }
 +            init_output_filter(ofilter, o, oc);
 +        }
 +    }
 +
 +    if (!strcmp(file_oformat->name, "ffm") &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int j;
 +        /* special case for files sent to ffserver: we get the stream
 +           parameters from ffserver */
 +        int err = read_ffserver_streams(o, oc, filename);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +        for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
 +            ost = output_streams[j];
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if(ist->st->codec->codec_type == ost->st->codec->codec_type){
 +                    ost->sync_ist= ist;
 +                    ost->source_index= i;
 +                    ist->discard = 0;
 +                    ist->st->discard = AVDISCARD_NONE;
 +                    break;
 +                }
 +            }
 +            if(!ost->sync_ist){
 +                av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
 +                exit_program(1);
 +            }
 +        }
 +    } else if (!o->nb_stream_maps) {
 +        /* pick the "best" stream of each type */
 +
 +        /* video: highest resolution */
 +        if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
 +            int area = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
 +                    ist->st->codec->width * ist->st->codec->height > area) {
 +                    area = ist->st->codec->width * ist->st->codec->height;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_video_stream(o, oc, idx);
 +        }
 +
 +        /* audio: most channels */
 +        if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
 +            int channels = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
 +                    ist->st->codec->channels > channels) {
 +                    channels = ist->st->codec->channels;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_audio_stream(o, oc, idx);
 +        }
 +
 +        /* subtitles: pick first */
 +        if (!o->subtitle_disable && (oc->oformat->subtitle_codec != CODEC_ID_NONE || subtitle_codec_name)) {
 +            for (i = 0; i < nb_input_streams; i++)
 +                if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                    new_subtitle_stream(o, oc, i);
 +                    break;
 +                }
 +        }
 +        /* do something with data? */
 +    } else {
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            StreamMap *map = &o->stream_maps[i];
 +            int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
 +
 +            if (map->disabled)
 +                continue;
 +
 +            if (map->linklabel) {
 +                FilterGraph *fg;
 +                OutputFilter *ofilter = NULL;
 +                int j, k;
 +
 +                for (j = 0; j < nb_filtergraphs; j++) {
 +                    fg = filtergraphs[j];
 +                    for (k = 0; k < fg->nb_outputs; k++) {
 +                        AVFilterInOut *out = fg->outputs[k]->out_tmp;
 +                        if (out && !strcmp(out->name, map->linklabel)) {
 +                            ofilter = fg->outputs[k];
 +                            goto loop_end;
 +                        }
 +                    }
 +                }
 +loop_end:
 +                if (!ofilter) {
 +                    av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
 +                           "in any defined filter graph.\n", map->linklabel);
 +                    exit_program(1);
 +                }
 +                init_output_filter(ofilter, o, oc);
 +            } else {
 +                ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
 +                if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
 +                    continue;
 +                if(o->   audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +                    continue;
 +                if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
 +                    continue;
 +                if(o->    data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
 +                    continue;
 +
 +                switch (ist->st->codec->codec_type) {
 +                case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
 +                default:
 +                    av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
 +                        map->file_index, map->stream_index);
 +                    exit_program(1);
 +                }
 +            }
 +        }
 +    }
 +
 +
 +    for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
 +        AVDictionaryEntry *e;
 +        ost = output_streams[i];
 +
 +        if (   ost->stream_copy
 +            && (e = av_dict_get(codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
 +            && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
 +            if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
 +                exit_program(1);
 +    }
 +
 +    /* handle attached files */
 +    for (i = 0; i < o->nb_attachments; i++) {
 +        AVIOContext *pb;
 +        uint8_t *attachment;
 +        const char *p;
 +        int64_t len;
 +
 +        if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if ((len = avio_size(pb)) <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if (!(attachment = av_malloc(len))) {
 +            av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        avio_read(pb, attachment, len);
 +
 +        ost = new_attachment_stream(o, oc, -1);
 +        ost->stream_copy               = 0;
 +        ost->attachment_filename       = o->attachments[i];
 +        ost->st->codec->extradata      = attachment;
 +        ost->st->codec->extradata_size = len;
 +
 +        p = strrchr(o->attachments[i], '/');
 +        av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
 +        avio_close(pb);
 +    }
 +
 +    output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
 +    if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
 +        exit_program(1);
 +
 +    output_files[nb_output_files - 1]->ctx            = oc;
 +    output_files[nb_output_files - 1]->ost_index      = nb_output_streams - oc->nb_streams;
 +    output_files[nb_output_files - 1]->recording_time = o->recording_time;
 +    if (o->recording_time != INT64_MAX)
 +        oc->duration = o->recording_time;
 +    output_files[nb_output_files - 1]->start_time     = o->start_time;
 +    output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
 +    av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
 +
 +    /* check filename in case of an image number is expected */
 +    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
 +        if (!av_filename_number_test(oc->filename)) {
 +            print_error(oc->filename, AVERROR(EINVAL));
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
 +        /* test if it already exists to avoid losing precious files */
 +        assert_file_overwrite(filename);
 +
 +        /* open the file */
 +        if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
 +                              &oc->interrupt_callback,
 +                              &output_files[nb_output_files - 1]->opts)) < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (o->mux_preload) {
 +        uint8_t buf[64];
 +        snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
 +        av_dict_set(&output_files[nb_output_files - 1]->opts, "preload", buf, 0);
 +    }
 +    oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
 +
 +    /* copy metadata */
 +    for (i = 0; i < o->nb_metadata_map; i++) {
 +        char *p;
 +        int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
 +
 +        if (in_file_index >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
 +            exit_program(1);
 +        }
 +        copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, in_file_index >= 0 ? input_files[in_file_index]->ctx : NULL, o);
 +    }
 +
 +    /* copy chapters */
 +    if (o->chapters_input_file >= nb_input_files) {
 +        if (o->chapters_input_file == INT_MAX) {
 +            /* copy chapters from the first input file that has them*/
 +            o->chapters_input_file = -1;
 +            for (i = 0; i < nb_input_files; i++)
 +                if (input_files[i]->ctx->nb_chapters) {
 +                    o->chapters_input_file = i;
 +                    break;
 +                }
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
 +                   o->chapters_input_file);
 +            exit_program(1);
 +        }
 +    }
 +    if (o->chapters_input_file >= 0)
 +        copy_chapters(input_files[o->chapters_input_file], output_files[nb_output_files - 1],
 +                      !o->metadata_chapters_manual);
 +
 +    /* copy global metadata by default */
 +    if (!o->metadata_global_manual && nb_input_files){
 +        av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
 +                     AV_DICT_DONT_OVERWRITE);
 +        if(o->recording_time != INT64_MAX)
 +            av_dict_set(&oc->metadata, "duration", NULL, 0);
 +    }
 +    if (!o->metadata_streams_manual)
 +        for (i = output_files[nb_output_files - 1]->ost_index; i < nb_output_streams; i++) {
 +            InputStream *ist;
 +            if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
 +                continue;
 +            ist = input_streams[output_streams[i]->source_index];
 +            av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
 +        }
 +
 +    /* process manually set metadata */
 +    for (i = 0; i < o->nb_metadata; i++) {
 +        AVDictionary **m;
 +        char type, *val;
 +        const char *stream_spec;
 +        int index = 0, j, ret = 0;
 +
 +        val = strchr(o->metadata[i].u.str, '=');
 +        if (!val) {
 +            av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
 +                   o->metadata[i].u.str);
 +            exit_program(1);
 +        }
 +        *val++ = 0;
 +
 +        parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
 +        if (type == 's') {
 +            for (j = 0; j < oc->nb_streams; j++) {
 +                if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
 +                    av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
 +                } else if (ret < 0)
 +                    exit_program(1);
 +            }
 +            printf("ret %d, stream_spec %s\n", ret, stream_spec);
 +        }
 +        else {
 +            switch (type) {
 +            case 'g':
 +                m = &oc->metadata;
 +                break;
 +            case 'c':
 +                if (index < 0 || index >= oc->nb_chapters) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
 +                    exit_program(1);
 +                }
 +                m = &oc->chapters[index]->metadata;
 +                break;
 +            default:
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
 +                exit_program(1);
 +            }
 +            av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
 +        }
 +    }
 +
 +    reset_options(o, 0);
 +}
 +
 +/* same option as mencoder */
 +static int opt_pass(const char *opt, const char *arg)
 +{
 +    do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 3);
 +    return 0;
 +}
 +
 +static int64_t getmaxrss(void)
 +{
 +#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
 +    struct rusage rusage;
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (int64_t)rusage.ru_maxrss * 1024;
 +#elif HAVE_GETPROCESSMEMORYINFO
 +    HANDLE proc;
 +    PROCESS_MEMORY_COUNTERS memcounters;
 +    proc = GetCurrentProcess();
 +    memcounters.cb = sizeof(memcounters);
 +    GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
 +    return memcounters.PeakPagefileUsage;
 +#else
 +    return 0;
 +#endif
 +}
 +
 +static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "q:a", arg, options);
 +}
 +
 +static void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +static int opt_help(const char *opt, const char *arg)
 +{
 +    int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 +    av_log_set_callback(log_callback_help);
 +    show_usage();
 +    show_help_options(options, "Main options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
 +    show_help_options(options, "\nAdvanced options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
 +                      OPT_EXPERT);
 +    show_help_options(options, "\nVideo options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_VIDEO);
 +    show_help_options(options, "\nAdvanced Video options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_VIDEO | OPT_EXPERT);
 +    show_help_options(options, "\nAudio options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_AUDIO);
 +    show_help_options(options, "\nAdvanced Audio options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_AUDIO | OPT_EXPERT);
 +    show_help_options(options, "\nSubtitle options:\n",
 +                      OPT_SUBTITLE | OPT_GRAB,
 +                      OPT_SUBTITLE);
 +    show_help_options(options, "\nAudio/Video grab options:\n",
 +                      OPT_GRAB,
 +                      OPT_GRAB);
 +    printf("\n");
 +    show_help_children(avcodec_get_class(), flags);
 +    show_help_children(avformat_get_class(), flags);
 +    show_help_children(sws_get_class(), flags);
 +
 +    return 0;
 +}
 +
 +static int opt_target(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
 +    static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 +
 +    if (!strncmp(arg, "pal-", 4)) {
 +        norm = PAL;
 +        arg += 4;
 +    } else if (!strncmp(arg, "ntsc-", 5)) {
 +        norm = NTSC;
 +        arg += 5;
 +    } else if (!strncmp(arg, "film-", 5)) {
 +        norm = FILM;
 +        arg += 5;
 +    } else {
 +        /* Try to determine PAL/NTSC by peeking in the input files */
 +        if (nb_input_files) {
 +            int i, j, fr;
 +            for (j = 0; j < nb_input_files; j++) {
 +                for (i = 0; i < input_files[j]->nb_streams; i++) {
 +                    AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
 +                    if (c->codec_type != AVMEDIA_TYPE_VIDEO)
 +                        continue;
 +                    fr = c->time_base.den * 1000 / c->time_base.num;
 +                    if (fr == 25000) {
 +                        norm = PAL;
 +                        break;
 +                    } else if ((fr == 29970) || (fr == 23976)) {
 +                        norm = NTSC;
 +                        break;
 +                    }
 +                }
 +                if (norm != UNKNOWN)
 +                    break;
 +            }
 +        }
 +        if (norm != UNKNOWN)
 +            av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
 +    }
 +
 +    if (norm == UNKNOWN) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
 +        av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
 +        av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
 +        exit_program(1);
 +    }
 +
 +    if (!strcmp(arg, "vcd")) {
 +        opt_video_codec(o, "c:v", "mpeg1video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "vcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "1150000");
 +        opt_default("maxrate", "1150000");
 +        opt_default("minrate", "1150000");
 +        opt_default("bufsize", "327680"); // 40*1024*8;
 +
 +        opt_default("b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +        parse_option(o, "ac", "2", options);
 +
 +        opt_default("packetsize", "2324");
 +        opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
 +
 +        /* We have to offset the PTS, so that it is consistent with the SCR.
 +           SCR starts at 36000, but the first two packs contain only padding
 +           and the first pack from the other stream, respectively, may also have
 +           been written before.
 +           So the real data starts at SCR 36000+3*1200. */
 +        o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
 +    } else if (!strcmp(arg, "svcd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "svcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "2040000");
 +        opt_default("maxrate", "2516000");
 +        opt_default("minrate", "0"); // 1145000;
 +        opt_default("bufsize", "1835008"); // 224*1024*8;
 +        opt_default("scan_offset", "1");
 +
 +
 +        opt_default("b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +
 +        opt_default("packetsize", "2324");
 +
 +    } else if (!strcmp(arg, "dvd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "ac3");
 +        parse_option(o, "f", "dvd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "6000000");
 +        opt_default("maxrate", "9000000");
 +        opt_default("minrate", "0"); // 1500000;
 +        opt_default("bufsize", "1835008"); // 224*1024*8;
 +
 +        opt_default("packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 +        opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 +
 +        opt_default("b:a", "448000");
 +        parse_option(o, "ar", "48000", options);
 +
 +    } else if (!strncmp(arg, "dv", 2)) {
 +
 +        parse_option(o, "f", "dv", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
 +                          norm == PAL ? "yuv420p" : "yuv411p", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +
 +        parse_option(o, "ar", "48000", options);
 +        parse_option(o, "ac", "2", options);
 +
 +    } else {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    return 0;
 +}
 +
 +static int opt_vstats_file(const char *opt, const char *arg)
 +{
 +    av_free (vstats_filename);
 +    vstats_filename = av_strdup (arg);
 +    return 0;
 +}
 +
 +static int opt_vstats(const char *opt, const char *arg)
 +{
 +    char filename[40];
 +    time_t today2 = time(NULL);
 +    struct tm *today = localtime(&today2);
 +
 +    snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 +             today->tm_sec);
 +    return opt_vstats_file(opt, filename);
 +}
 +
 +static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:v", arg, options);
 +}
 +
 +static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:a", arg, options);
 +}
 +
 +static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:d", arg, options);
 +}
 +
 +static int opt_preset(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    FILE *f=NULL;
 +    char filename[1000], tmp[1000], tmp2[1000], line[1000];
 +    const char *codec_name = *opt == 'v' ? video_codec_name :
 +                             *opt == 'a' ? audio_codec_name :
 +                                           subtitle_codec_name;
 +
 +    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 +        if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 +            av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 +        }else
 +            av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
 +        exit_program(1);
 +    }
 +
 +    while(!feof(f)){
 +        int e= fscanf(f, "%999[^\n]\n", line) - 1;
 +        if(line[0] == '#' && !e)
 +            continue;
 +        e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
 +        if(e){
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
 +            exit_program(1);
 +        }
 +        if(!strcmp(tmp, "acodec")){
 +            opt_audio_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "vcodec")){
 +            opt_video_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "scodec")){
 +            opt_subtitle_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "dcodec")){
 +            opt_data_codec(o, tmp, tmp2);
 +        }else if(opt_default(tmp, tmp2) < 0){
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
 +            exit_program(1);
 +        }
 +    }
 +
 +    fclose(f);
 +
 +    return 0;
 +}
 +
 +static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
 +{
 +}
 +
 +static int opt_passlogfile(const char *opt, const char *arg)
 +{
 +    pass_logfilename_prefix = arg;
 +#if CONFIG_LIBX264_ENCODER
 +    return opt_default(opt, arg);
 +#else
 +    return 0;
 +#endif
 +}
 +
 +static int opt_old2new(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char *s = av_asprintf("%s:%c", opt + 1, *opt);
 +    int ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_bitrate(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    if(!strcmp(opt, "b")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 +        return parse_option(o, "b:v", arg, options);
 +    }
 +    return opt_default(opt, arg);
 +}
 +
 +static int opt_qscale(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char *s;
 +    int ret;
 +    if(!strcmp(opt, "qscale")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 +        return parse_option(o, "q:v", arg, options);
 +    }
 +    s = av_asprintf("q%s", opt + 6);
 +    ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_profile(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    if(!strcmp(opt, "profile")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
 +        return parse_option(o, "profile:v", arg, options);
 +    }
 +    return opt_default(opt, arg);
 +}
 +
 +static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "filter:v", arg, options);
 +}
 +
 +static int opt_vsync(const char *opt, const char *arg)
 +{
 +    if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
 +    else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
 +    else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
 +    else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
 +
 +    if (video_sync_method == VSYNC_AUTO)
 +        video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
 +    return 0;
 +}
 +
 +static int opt_deinterlace(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
 +    do_deinterlace = 1;
 +    return 0;
 +}
 +
 +static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
 +{
 +    int idx = locate_option(argc, argv, options, "cpuflags");
 +    if (idx && argv[idx + 1])
 +        opt_cpuflags("cpuflags", argv[idx + 1]);
 +}
 +
 +static int opt_channel_layout(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char layout_str[32];
 +    char *stream_str;
 +    char *ac_str;
 +    int ret, channels, ac_str_size;
 +    uint64_t layout;
 +
 +    layout = av_get_channel_layout(arg);
 +    if (!layout) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
 +    ret = opt_default(opt, layout_str);
 +    if (ret < 0)
 +        return ret;
 +
 +    /* set 'ac' option based on channel layout */
 +    channels = av_get_channel_layout_nb_channels(layout);
 +    snprintf(layout_str, sizeof(layout_str), "%d", channels);
 +    stream_str = strchr(opt, ':');
 +    ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
 +    ac_str = av_mallocz(ac_str_size);
 +    if (!ac_str)
 +        return AVERROR(ENOMEM);
 +    av_strlcpy(ac_str, "ac", 3);
 +    if (stream_str)
 +        av_strlcat(ac_str, stream_str, ac_str_size);
 +    ret = parse_option(o, ac_str, layout_str, options);
 +    av_free(ac_str);
 +
 +    return ret;
 +}
 +
 +static int opt_filter_complex(const char *opt, const char *arg)
 +{
 +    filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
 +                              &nb_filtergraphs, nb_filtergraphs + 1);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index       = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = arg;
 +    return 0;
 +}
 +
 +#define OFFSET(x) offsetof(OptionsContext, x)
 +static const OptionDef options[] = {
 +    /* main options */
 +#include "cmdutils_common_opts.h"
 +    { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
 +    { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
 +    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
 +    { "n", OPT_BOOL, {(void*)&no_file_overwrite}, "do not overwrite output files" },
 +    { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
 +    { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
 +    { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
 +    { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 +    { "map_channel", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_channel}, "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
 +    { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
 +      "outfile[,metadata]:infile[,metadata]" },
 +    { "map_chapters",  OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)},  "set chapters mapping", "input_file_index" },
 +    { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
 +    { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
 +    { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
 +    { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
 +    { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
 +    { "timestamp", HAS_ARG | OPT_FUNC2, {(void*)opt_recording_timestamp}, "set the recording timestamp ('now' to set the current time)", "time" },
 +    { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
 +    { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
 +    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
 +      "add timings for benchmarking" },
 +    { "benchmark_all", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark_all},
 +      "add timings for each task" },
 +    { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
 +    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
 +      "dump each input packet" },
 +    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
 +      "when dumping packets, also dump the payload" },
 +    { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
 +    { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
 +    { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
 +    { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
 +    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
 +    { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
 +    { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "mode" },
 +    { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
 +    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
 +    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_error_threshold}, "timestamp error delta threshold", "threshold" },
 +    { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
 +    { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
 +    { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
 +    { "tag",   OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
 +    { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
 +    { "qscale", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_qscale}, "use fixed quality scale (VBR)", "q" },
 +    { "profile", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_profile}, "set profile", "profile" },
 +    { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
 +    { "filter_complex", HAS_ARG | OPT_EXPERT, {(void*)opt_filter_complex}, "create a complex filtergraph", "graph_description" },
 +    { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
 +    { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
 +    { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
 +    { "debug_ts", OPT_BOOL | OPT_EXPERT, {&debug_ts}, "print timestamp debugging info" },
 +
 +    /* video options */
 +    { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
 +    { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
 +    { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
 +    { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 +    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
 +    { "bits_per_raw_sample", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&frame_bits_per_raw_sample}, "set the number of bits per raw sample", "number" },
 +    { "croptop",  HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "padtop", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padleft", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padright", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "color" },
 +    { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "deprecated use -g 1"},
 +    { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
 +    { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
 +    { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
 +    { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
 +    { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant}, "use same quantizer as source (implies VBR)" },
 +    { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
 +      "use same quantizer as source (implies VBR)" },
 +    { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
 +    { "passlogfile", HAS_ARG | OPT_VIDEO, {(void*)&opt_passlogfile}, "select two pass log file name prefix", "prefix" },
 +    { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
 +      "this option is deprecated, use the yadif filter instead" },
 +    { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
 +    { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
 +    { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
 +    { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
 +    { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
 +    { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
 +    { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
 +    { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
 +    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_old2new}, "force video tag/fourcc", "fourcc/tag" },
 +    { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
 +    { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
 +    { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
 +    { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
 +    { "b", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_bitrate}, "video bitrate (please use -b:v)", "bitrate" },
 +
 +    /* audio options */
 +    { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
 +    { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
 +    { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
 +    { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
 +    { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
 +    { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
 +    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_old2new}, "force audio tag/fourcc", "fourcc/tag" },
 +    { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
 +    { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
 +    { "rmvol", HAS_ARG | OPT_AUDIO | OPT_FLOAT | OPT_SPEC, {.off = OFFSET(rematrix_volume)}, "rematrix volume (as factor)", "volume" },
 +    { "channel_layout", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_channel_layout}, "set channel layout", "layout" },
 +
 +    /* subtitle options */
 +    { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
 +    { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
 +    { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_old2new}, "force subtitle tag/fourcc", "fourcc/tag" },
 +
 +    /* grab options */
 +    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "deprecated, use -channel", "channel" },
 +    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "deprecated, use -standard", "standard" },
 +    { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
 +
 +    /* muxer options */
 +    { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT   | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
 +    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)},   "set the initial demux-decode delay", "seconds" },
 +
 +    { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
 +    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "audio bitstream_filters" },
 +    { "vbsf", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "video bitstream_filters" },
 +
 +    { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the audio options to the indicated preset", "preset" },
 +    { "vpre", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the video options to the indicated preset", "preset" },
 +    { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the subtitle options to the indicated preset", "preset" },
 +    { "fpre", HAS_ARG | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
 +    /* data codec support */
 +    { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
 +    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(data_disable)}, "disable data" },
 +
 +    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
 +    { NULL, },
 +};
 +
 +int main(int argc, char **argv)
 +{
 +    OptionsContext o = { 0 };
 +    int64_t ti;
 +
 +    reset_options(&o, 0);
 +
 +    av_log_set_flags(AV_LOG_SKIP_REPEATED);
 +    parse_loglevel(argc, argv, options);
 +
 +    if(argc>1 && !strcmp(argv[1], "-d")){
 +        run_as_daemon=1;
 +        av_log_set_callback(log_callback_null);
 +        argc--;
 +        argv++;
 +    }
 +
 +    avcodec_register_all();
 +#if CONFIG_AVDEVICE
 +    avdevice_register_all();
 +#endif
 +    avfilter_register_all();
 +    av_register_all();
 +    avformat_network_init();
 +
 +    show_banner(argc, argv, options);
 +
 +    term_init();
 +
 +    parse_cpuflags(argc, argv, options);
 +
 +    /* parse options */
 +    parse_options(&o, argc, argv, options, opt_output_file);
 +
 +    if (nb_output_files <= 0 && nb_input_files == 0) {
 +        show_usage();
 +        av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
 +        exit_program(1);
 +    }
 +
 +    /* file converter / grab */
 +    if (nb_output_files <= 0) {
 +        av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
 +        exit_program(1);
 +    }
 +
 +    if (nb_input_files == 0) {
 +        av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
 +        exit_program(1);
 +    }
 +
 +    current_time = ti = getutime();
 +    if (transcode() < 0)
 +        exit_program(1);
 +    ti = getutime() - ti;
 +    if (do_benchmark) {
 +        int maxrss = getmaxrss() / 1024;
 +        printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
 +    }
 +
 +    exit_program(0);
 +    return 0;
 +}
index 0000000,f54dcc6..78ef153
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,405 +1,405 @@@
 -#include "libavutil/error.h"
+ /*
+  * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
+  *
+  * This file is part of Libav.
+  *
+  * Libav is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Lesser General Public
+  * License as published by the Free Software Foundation; either
+  * version 2.1 of the License, or (at your option) any later version.
+  *
+  * Libav is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  * Lesser General Public License for more details.
+  *
+  * You should have received a copy of the GNU Lesser General Public
+  * License along with Libav; if not, write to the Free Software
+  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+  */
+ #include "libavutil/dict.h"
 -    return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
++// #include "libavutil/error.h"
+ #include "libavutil/log.h"
+ #include "libavutil/mem.h"
+ #include "libavutil/opt.h"
+ #include "avresample.h"
+ #include "audio_data.h"
+ #include "internal.h"
+ int avresample_open(AVAudioResampleContext *avr)
+ {
+     int ret;
+     /* set channel mixing parameters */
+     avr->in_channels = av_get_channel_layout_nb_channels(avr->in_channel_layout);
+     if (avr->in_channels <= 0 || avr->in_channels > AVRESAMPLE_MAX_CHANNELS) {
+         av_log(avr, AV_LOG_ERROR, "Invalid input channel layout: %"PRIu64"\n",
+                avr->in_channel_layout);
+         return AVERROR(EINVAL);
+     }
+     avr->out_channels = av_get_channel_layout_nb_channels(avr->out_channel_layout);
+     if (avr->out_channels <= 0 || avr->out_channels > AVRESAMPLE_MAX_CHANNELS) {
+         av_log(avr, AV_LOG_ERROR, "Invalid output channel layout: %"PRIu64"\n",
+                avr->out_channel_layout);
+         return AVERROR(EINVAL);
+     }
+     avr->resample_channels = FFMIN(avr->in_channels, avr->out_channels);
+     avr->downmix_needed    = avr->in_channels  > avr->out_channels;
+     avr->upmix_needed      = avr->out_channels > avr->in_channels ||
+                              avr->am->matrix                      ||
+                              (avr->out_channels == avr->in_channels &&
+                               avr->in_channel_layout != avr->out_channel_layout);
+     avr->mixing_needed     = avr->downmix_needed || avr->upmix_needed;
+     /* set resampling parameters */
+     avr->resample_needed   = avr->in_sample_rate != avr->out_sample_rate ||
+                              avr->force_resampling;
+     /* set sample format conversion parameters */
+     /* override user-requested internal format to avoid unexpected failures
+        TODO: support more internal formats */
+     if (avr->resample_needed && avr->internal_sample_fmt != AV_SAMPLE_FMT_S16P) {
+         av_log(avr, AV_LOG_WARNING, "Using s16p as internal sample format\n");
+         avr->internal_sample_fmt = AV_SAMPLE_FMT_S16P;
+     } else if (avr->mixing_needed &&
+                avr->internal_sample_fmt != AV_SAMPLE_FMT_S16P &&
+                avr->internal_sample_fmt != AV_SAMPLE_FMT_FLTP) {
+         av_log(avr, AV_LOG_WARNING, "Using fltp as internal sample format\n");
+         avr->internal_sample_fmt = AV_SAMPLE_FMT_FLTP;
+     }
+     if (avr->in_channels == 1)
+         avr->in_sample_fmt = av_get_planar_sample_fmt(avr->in_sample_fmt);
+     if (avr->out_channels == 1)
+         avr->out_sample_fmt = av_get_planar_sample_fmt(avr->out_sample_fmt);
+     avr->in_convert_needed = (avr->resample_needed || avr->mixing_needed) &&
+                               avr->in_sample_fmt != avr->internal_sample_fmt;
+     if (avr->resample_needed || avr->mixing_needed)
+         avr->out_convert_needed = avr->internal_sample_fmt != avr->out_sample_fmt;
+     else
+         avr->out_convert_needed = avr->in_sample_fmt != avr->out_sample_fmt;
+     /* allocate buffers */
+     if (avr->mixing_needed || avr->in_convert_needed) {
+         avr->in_buffer = ff_audio_data_alloc(FFMAX(avr->in_channels, avr->out_channels),
+                                              0, avr->internal_sample_fmt,
+                                              "in_buffer");
+         if (!avr->in_buffer) {
+             ret = AVERROR(EINVAL);
+             goto error;
+         }
+     }
+     if (avr->resample_needed) {
+         avr->resample_out_buffer = ff_audio_data_alloc(avr->out_channels,
+                                                        0, avr->internal_sample_fmt,
+                                                        "resample_out_buffer");
+         if (!avr->resample_out_buffer) {
+             ret = AVERROR(EINVAL);
+             goto error;
+         }
+     }
+     if (avr->out_convert_needed) {
+         avr->out_buffer = ff_audio_data_alloc(avr->out_channels, 0,
+                                               avr->out_sample_fmt, "out_buffer");
+         if (!avr->out_buffer) {
+             ret = AVERROR(EINVAL);
+             goto error;
+         }
+     }
+     avr->out_fifo = av_audio_fifo_alloc(avr->out_sample_fmt, avr->out_channels,
+                                         1024);
+     if (!avr->out_fifo) {
+         ret = AVERROR(ENOMEM);
+         goto error;
+     }
+     /* setup contexts */
+     if (avr->in_convert_needed) {
+         avr->ac_in = ff_audio_convert_alloc(avr, avr->internal_sample_fmt,
+                                             avr->in_sample_fmt, avr->in_channels);
+         if (!avr->ac_in) {
+             ret = AVERROR(ENOMEM);
+             goto error;
+         }
+     }
+     if (avr->out_convert_needed) {
+         enum AVSampleFormat src_fmt;
+         if (avr->in_convert_needed)
+             src_fmt = avr->internal_sample_fmt;
+         else
+             src_fmt = avr->in_sample_fmt;
+         avr->ac_out = ff_audio_convert_alloc(avr, avr->out_sample_fmt, src_fmt,
+                                              avr->out_channels);
+         if (!avr->ac_out) {
+             ret = AVERROR(ENOMEM);
+             goto error;
+         }
+     }
+     if (avr->resample_needed) {
+         avr->resample = ff_audio_resample_init(avr);
+         if (!avr->resample) {
+             ret = AVERROR(ENOMEM);
+             goto error;
+         }
+     }
+     if (avr->mixing_needed) {
+         ret = ff_audio_mix_init(avr);
+         if (ret < 0)
+             goto error;
+     }
+     return 0;
+ error:
+     avresample_close(avr);
+     return ret;
+ }
+ void avresample_close(AVAudioResampleContext *avr)
+ {
+     ff_audio_data_free(&avr->in_buffer);
+     ff_audio_data_free(&avr->resample_out_buffer);
+     ff_audio_data_free(&avr->out_buffer);
+     av_audio_fifo_free(avr->out_fifo);
+     avr->out_fifo = NULL;
+     av_freep(&avr->ac_in);
+     av_freep(&avr->ac_out);
+     ff_audio_resample_free(&avr->resample);
+     ff_audio_mix_close(avr->am);
+     return;
+ }
+ void avresample_free(AVAudioResampleContext **avr)
+ {
+     if (!*avr)
+         return;
+     avresample_close(*avr);
+     av_freep(&(*avr)->am);
+     av_opt_free(*avr);
+     av_freep(avr);
+ }
+ static int handle_buffered_output(AVAudioResampleContext *avr,
+                                   AudioData *output, AudioData *converted)
+ {
+     int ret;
+     if (!output || av_audio_fifo_size(avr->out_fifo) > 0 ||
+         (converted && output->allocated_samples < converted->nb_samples)) {
+         if (converted) {
+             /* if there are any samples in the output FIFO or if the
+                user-supplied output buffer is not large enough for all samples,
+                we add to the output FIFO */
+             av_dlog(avr, "[FIFO] add %s to out_fifo\n", converted->name);
+             ret = ff_audio_data_add_to_fifo(avr->out_fifo, converted, 0,
+                                             converted->nb_samples);
+             if (ret < 0)
+                 return ret;
+         }
+         /* if the user specified an output buffer, read samples from the output
+            FIFO to the user output */
+         if (output && output->allocated_samples > 0) {
+             av_dlog(avr, "[FIFO] read from out_fifo to output\n");
+             av_dlog(avr, "[end conversion]\n");
+             return ff_audio_data_read_from_fifo(avr->out_fifo, output,
+                                                 output->allocated_samples);
+         }
+     } else if (converted) {
+         /* copy directly to output if it is large enough or there is not any
+            data in the output FIFO */
+         av_dlog(avr, "[copy] %s to output\n", converted->name);
+         output->nb_samples = 0;
+         ret = ff_audio_data_copy(output, converted);
+         if (ret < 0)
+             return ret;
+         av_dlog(avr, "[end conversion]\n");
+         return output->nb_samples;
+     }
+     av_dlog(avr, "[end conversion]\n");
+     return 0;
+ }
+ int avresample_convert(AVAudioResampleContext *avr, void **output,
+                        int out_plane_size, int out_samples, void **input,
+                        int in_plane_size, int in_samples)
+ {
+     AudioData input_buffer;
+     AudioData output_buffer;
+     AudioData *current_buffer;
+     int ret;
+     /* reset internal buffers */
+     if (avr->in_buffer) {
+         avr->in_buffer->nb_samples = 0;
+         ff_audio_data_set_channels(avr->in_buffer,
+                                    avr->in_buffer->allocated_channels);
+     }
+     if (avr->resample_out_buffer) {
+         avr->resample_out_buffer->nb_samples = 0;
+         ff_audio_data_set_channels(avr->resample_out_buffer,
+                                    avr->resample_out_buffer->allocated_channels);
+     }
+     if (avr->out_buffer) {
+         avr->out_buffer->nb_samples = 0;
+         ff_audio_data_set_channels(avr->out_buffer,
+                                    avr->out_buffer->allocated_channels);
+     }
+     av_dlog(avr, "[start conversion]\n");
+     /* initialize output_buffer with output data */
+     if (output) {
+         ret = ff_audio_data_init(&output_buffer, output, out_plane_size,
+                                  avr->out_channels, out_samples,
+                                  avr->out_sample_fmt, 0, "output");
+         if (ret < 0)
+             return ret;
+         output_buffer.nb_samples = 0;
+     }
+     if (input) {
+         /* initialize input_buffer with input data */
+         ret = ff_audio_data_init(&input_buffer, input, in_plane_size,
+                                  avr->in_channels, in_samples,
+                                  avr->in_sample_fmt, 1, "input");
+         if (ret < 0)
+             return ret;
+         current_buffer = &input_buffer;
+         if (avr->upmix_needed && !avr->in_convert_needed && !avr->resample_needed &&
+             !avr->out_convert_needed && output && out_samples >= in_samples) {
+             /* in some rare cases we can copy input to output and upmix
+                directly in the output buffer */
+             av_dlog(avr, "[copy] %s to output\n", current_buffer->name);
+             ret = ff_audio_data_copy(&output_buffer, current_buffer);
+             if (ret < 0)
+                 return ret;
+             current_buffer = &output_buffer;
+         } else if (avr->mixing_needed || avr->in_convert_needed) {
+             /* if needed, copy or convert input to in_buffer, and downmix if
+                applicable */
+             if (avr->in_convert_needed) {
+                 ret = ff_audio_data_realloc(avr->in_buffer,
+                                             current_buffer->nb_samples);
+                 if (ret < 0)
+                     return ret;
+                 av_dlog(avr, "[convert] %s to in_buffer\n", current_buffer->name);
+                 ret = ff_audio_convert(avr->ac_in, avr->in_buffer, current_buffer,
+                                        current_buffer->nb_samples);
+                 if (ret < 0)
+                     return ret;
+             } else {
+                 av_dlog(avr, "[copy] %s to in_buffer\n", current_buffer->name);
+                 ret = ff_audio_data_copy(avr->in_buffer, current_buffer);
+                 if (ret < 0)
+                     return ret;
+             }
+             ff_audio_data_set_channels(avr->in_buffer, avr->in_channels);
+             if (avr->downmix_needed) {
+                 av_dlog(avr, "[downmix] in_buffer\n");
+                 ret = ff_audio_mix(avr->am, avr->in_buffer);
+                 if (ret < 0)
+                     return ret;
+             }
+             current_buffer = avr->in_buffer;
+         }
+     } else {
+         /* flush resampling buffer and/or output FIFO if input is NULL */
+         if (!avr->resample_needed)
+             return handle_buffered_output(avr, output ? &output_buffer : NULL,
+                                           NULL);
+         current_buffer = NULL;
+     }
+     if (avr->resample_needed) {
+         AudioData *resample_out;
+         int consumed = 0;
+         if (!avr->out_convert_needed && output && out_samples > 0)
+             resample_out = &output_buffer;
+         else
+             resample_out = avr->resample_out_buffer;
+         av_dlog(avr, "[resample] %s to %s\n", current_buffer->name,
+                 resample_out->name);
+         ret = ff_audio_resample(avr->resample, resample_out,
+                                 current_buffer, &consumed);
+         if (ret < 0)
+             return ret;
+         /* if resampling did not produce any samples, just return 0 */
+         if (resample_out->nb_samples == 0) {
+             av_dlog(avr, "[end conversion]\n");
+             return 0;
+         }
+         current_buffer = resample_out;
+     }
+     if (avr->upmix_needed) {
+         av_dlog(avr, "[upmix] %s\n", current_buffer->name);
+         ret = ff_audio_mix(avr->am, current_buffer);
+         if (ret < 0)
+             return ret;
+     }
+     /* if we resampled or upmixed directly to output, return here */
+     if (current_buffer == &output_buffer) {
+         av_dlog(avr, "[end conversion]\n");
+         return current_buffer->nb_samples;
+     }
+     if (avr->out_convert_needed) {
+         if (output && out_samples >= current_buffer->nb_samples) {
+             /* convert directly to output */
+             av_dlog(avr, "[convert] %s to output\n", current_buffer->name);
+             ret = ff_audio_convert(avr->ac_out, &output_buffer, current_buffer,
+                                    current_buffer->nb_samples);
+             if (ret < 0)
+                 return ret;
+             av_dlog(avr, "[end conversion]\n");
+             return output_buffer.nb_samples;
+         } else {
+             ret = ff_audio_data_realloc(avr->out_buffer,
+                                         current_buffer->nb_samples);
+             if (ret < 0)
+                 return ret;
+             av_dlog(avr, "[convert] %s to out_buffer\n", current_buffer->name);
+             ret = ff_audio_convert(avr->ac_out, avr->out_buffer,
+                                    current_buffer, current_buffer->nb_samples);
+             if (ret < 0)
+                 return ret;
+             current_buffer = avr->out_buffer;
+         }
+     }
+     return handle_buffered_output(avr, &output_buffer, current_buffer);
+ }
+ int avresample_available(AVAudioResampleContext *avr)
+ {
+     return av_audio_fifo_size(avr->out_fifo);
+ }
+ int avresample_read(AVAudioResampleContext *avr, void **output, int nb_samples)
+ {
+     return av_audio_fifo_read(avr->out_fifo, output, nb_samples);
+ }
+ unsigned avresample_version(void)
+ {
+     return LIBAVRESAMPLE_VERSION_INT;
+ }
+ const char *avresample_license(void)
+ {
+ #define LICENSE_PREFIX "libavresample license: "
 -    return LIBAV_CONFIGURATION;
++    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+ }
+ const char *avresample_configuration(void)
+ {
++    return FFMPEG_CONFIGURATION;
+ }
Simple merge
Simple merge
@@@ -116,9 -91,7 +116,9 @@@ do_lavf_timecode ismv "-an -vcodec mpeg
  fi
  
  if [ -n "$do_dv_fmt" ] ; then
- do_lavf dv "-ar 48000" "-r 25 -s pal -ac 2"
 +do_lavf_timecode_nodrop dv "-ar 48000 -r 25 -s pal -ac 2"
 +do_lavf_timecode_drop   dv "-ar 48000 -pix_fmt yuv411p -s ntsc -ac 2"
+ do_lavf dv "-ar 48000 -channel_layout stereo" "-r 25 -s pal"
  fi
  
  if [ -n "$do_gxf" ] ; then
@@@ -1,9 -1,3 +1,9 @@@
 -eb51fbb48af28584ea5515f9f2400fcd *./tests/data/lavf/lavf.dv
 +6f9cfff48f536fa727696f2f9fb3ac08 *./tests/data/lavf/lavf.dv
 +3600000 ./tests/data/lavf/lavf.dv
 +./tests/data/lavf/lavf.dv CRC=0x5ce4e5e4
 +cc33ae4f9e6828914dea0f09d1241b7e *./tests/data/lavf/lavf.dv
 +3480000 ./tests/data/lavf/lavf.dv
 +./tests/data/lavf/lavf.dv CRC=0x8d5e9e8f
- b36c83cd0ba0ebe719f09f885c4bbcd3 *./tests/data/lavf/lavf.dv
++87d3b20f656235671383a7eaa2f66330 *./tests/data/lavf/lavf.dv
  3600000 ./tests/data/lavf/lavf.dv
- ./tests/data/lavf/lavf.dv CRC=0x2bc2ae3a
+ ./tests/data/lavf/lavf.dv CRC=0x0e868a82