gitignore: add files to git ignore generated on a win32 build
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #include "libavformat/ffm.h" // not public API
50
51 #if CONFIG_AVFILTER
52 # include "libavfilter/avcodec.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/buffersink.h"
56 # include "libavfilter/vsrc_buffer.h"
57 #endif
58
59 #if HAVE_SYS_RESOURCE_H
60 #include <sys/types.h>
61 #include <sys/time.h>
62 #include <sys/resource.h>
63 #elif HAVE_GETPROCESSTIMES
64 #include <windows.h>
65 #endif
66 #if HAVE_GETPROCESSMEMORYINFO
67 #include <windows.h>
68 #include <psapi.h>
69 #endif
70
71 #if HAVE_SYS_SELECT_H
72 #include <sys/select.h>
73 #endif
74
75 #if HAVE_TERMIOS_H
76 #include <fcntl.h>
77 #include <sys/ioctl.h>
78 #include <sys/time.h>
79 #include <termios.h>
80 #elif HAVE_KBHIT
81 #include <conio.h>
82 #endif
83 #include <time.h>
84
85 #include "cmdutils.h"
86
87 #include "libavutil/avassert.h"
88
89 const char program_name[] = "ffmpeg";
90 const int program_birth_year = 2000;
91
92 /* select an input stream for an output stream */
93 typedef struct StreamMap {
94     int disabled;           /** 1 is this mapping is disabled by a negative map */
95     int file_index;
96     int stream_index;
97     int sync_file_index;
98     int sync_stream_index;
99 } StreamMap;
100
101 /**
102  * select an input file for an output file
103  */
104 typedef struct MetadataMap {
105     int  file;      ///< file index
106     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
107     int  index;     ///< stream/chapter/program number
108 } MetadataMap;
109
110 static const OptionDef options[];
111
112 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
113
114 /* indexed by output file stream index */
115 static int *streamid_map = NULL;
116 static int nb_streamid_map = 0;
117
118 static int frame_width  = 0;
119 static int frame_height = 0;
120 static float frame_aspect_ratio = 0;
121 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
122 static int frame_bits_per_raw_sample = 0;
123 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
124 static AVRational frame_rate;
125 static float video_qscale = 0;
126 static uint16_t *intra_matrix = NULL;
127 static uint16_t *inter_matrix = NULL;
128 static const char *video_rc_override_string=NULL;
129 static int video_discard = 0;
130 static char *video_codec_name = NULL;
131 static int same_quant = 0;
132 static int do_deinterlace = 0;
133 static int top_field_first = -1;
134 static int me_threshold = 0;
135 static int intra_dc_precision = 8;
136 static int loop_input = 0;
137 static int loop_output = AVFMT_NOOUTPUTLOOP;
138 static int qp_hist = 0;
139 #if CONFIG_AVFILTER
140 static char *vfilters = NULL;
141 #endif
142
143 static int intra_only = 0;
144 static int audio_sample_rate = 0;
145 #define QSCALE_NONE -99999
146 static float audio_qscale = QSCALE_NONE;
147 static char  *audio_codec_name = NULL;
148 static char *subtitle_codec_name = NULL;
149
150 static char *data_codec_name = NULL;
151
152 static int file_overwrite = 0;
153 static int do_benchmark = 0;
154 static int do_hex_dump = 0;
155 static int do_pkt_dump = 0;
156 static int do_psnr = 0;
157 static int do_pass = 0;
158 static const char *pass_logfilename_prefix;
159 static int video_sync_method= -1;
160 static int audio_sync_method= 0;
161 static float audio_drift_threshold= 0.1;
162 static int copy_ts= 0;
163 static int copy_tb= 0;
164 static int opt_shortest = 0;
165 static char *vstats_filename;
166 static FILE *vstats_file;
167 static int opt_programid = 0;
168 static int copy_initial_nonkeyframes = 0;
169
170 static int audio_volume = 256;
171
172 static int exit_on_error = 0;
173 static int using_stdin = 0;
174 static int verbose = 1;
175 static int run_as_daemon  = 0;
176 static int thread_count= 1;
177 static int q_pressed = 0;
178 static int64_t video_size = 0;
179 static int64_t audio_size = 0;
180 static int64_t extra_size = 0;
181 static int nb_frames_dup = 0;
182 static int nb_frames_drop = 0;
183 static int input_sync;
184 static int force_fps = 0;
185 static char *forced_key_frames = NULL;
186
187 static float dts_delta_threshold = 10;
188
189 static uint8_t *audio_buf;
190 static uint8_t *audio_out;
191 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
192
193 static short *samples;
194 static uint8_t *input_tmp= NULL;
195
196 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
197
198 typedef struct InputStream {
199     int file_index;
200     AVStream *st;
201     int discard;             /* true if stream data should be discarded */
202     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
203     AVCodec *dec;
204
205     int64_t       start;     /* time when read started */
206     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
207                                 is not defined */
208     int64_t       pts;       /* current pts */
209     double ts_scale;
210     int is_start;            /* is 1 at the start and after a discontinuity */
211     int showed_multi_packet_warning;
212     AVDictionary *opts;
213 } InputStream;
214
215 typedef struct InputFile {
216     AVFormatContext *ctx;
217     int eof_reached;      /* true if eof reached */
218     int ist_index;        /* index of first stream in ist_table */
219     int buffer_size;      /* current total buffer size */
220     int64_t ts_offset;
221     int nb_streams;       /* number of stream that avconv is aware of; may be different
222                              from ctx.nb_streams if new streams appear during av_read_frame() */
223     int rate_emu;
224 } InputFile;
225
226 typedef struct OutputStream {
227     int file_index;          /* file index */
228     int index;               /* stream index in the output file */
229     int source_index;        /* InputStream index */
230     AVStream *st;            /* stream in the output file */
231     int encoding_needed;     /* true if encoding needed for this stream */
232     int frame_number;
233     /* input pts and corresponding output pts
234        for A/V sync */
235     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
236     struct InputStream *sync_ist; /* input stream to sync against */
237     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
238     AVBitStreamFilterContext *bitstream_filters;
239     AVCodec *enc;
240     int64_t max_frames;
241
242     /* video only */
243     int video_resample;
244     AVFrame resample_frame;              /* temporary frame for image resampling */
245     struct SwsContext *img_resample_ctx; /* for image resampling */
246     int resample_height;
247     int resample_width;
248     int resample_pix_fmt;
249     AVRational frame_rate;
250
251     float frame_aspect_ratio;
252
253     /* forced key frames */
254     int64_t *forced_kf_pts;
255     int forced_kf_count;
256     int forced_kf_index;
257
258     /* audio only */
259     int audio_resample;
260     ReSampleContext *resample; /* for audio resampling */
261     int resample_sample_fmt;
262     int resample_channels;
263     int resample_sample_rate;
264     int reformat_pair;
265     AVAudioConvert *reformat_ctx;
266     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
267     FILE *logfile;
268
269 #if CONFIG_AVFILTER
270     AVFilterContext *output_video_filter;
271     AVFilterContext *input_video_filter;
272     AVFilterBufferRef *picref;
273     char *avfilter;
274     AVFilterGraph *graph;
275 #endif
276
277    int sws_flags;
278    AVDictionary *opts;
279    int is_past_recording_time;
280 } OutputStream;
281
282
283 #if HAVE_TERMIOS_H
284
285 /* init terminal so that we can grab keys */
286 static struct termios oldtty;
287 #endif
288
289 typedef struct OutputFile {
290     AVFormatContext *ctx;
291     AVDictionary *opts;
292     int ost_index;       /* index of the first stream in output_streams */
293     int64_t recording_time; /* desired length of the resulting file in microseconds */
294     int64_t start_time;     /* start time in microseconds */
295     uint64_t limit_filesize;
296 } OutputFile;
297
298 static InputStream *input_streams = NULL;
299 static int         nb_input_streams = 0;
300 static InputFile   *input_files   = NULL;
301 static int         nb_input_files   = 0;
302
303 static OutputStream *output_streams = NULL;
304 static int        nb_output_streams = 0;
305 static OutputFile   *output_files   = NULL;
306 static int        nb_output_files   = 0;
307
308 typedef struct OptionsContext {
309     /* input/output options */
310     int64_t start_time;
311     const char *format;
312
313     SpecifierOpt *codec_names;
314     int        nb_codec_names;
315     SpecifierOpt *audio_channels;
316     int        nb_audio_channels;
317
318     /* input options */
319     int64_t input_ts_offset;
320     int rate_emu;
321
322     SpecifierOpt *ts_scale;
323     int        nb_ts_scale;
324
325     /* output options */
326     StreamMap *stream_maps;
327     int     nb_stream_maps;
328     /* first item specifies output metadata, second is input */
329     MetadataMap (*meta_data_maps)[2];
330     int nb_meta_data_maps;
331     int metadata_global_manual;
332     int metadata_streams_manual;
333     int metadata_chapters_manual;
334
335     int chapters_input_file;
336
337     int64_t recording_time;
338     uint64_t limit_filesize;
339     float mux_preload;
340     float mux_max_delay;
341
342     int video_disable;
343     int audio_disable;
344     int subtitle_disable;
345     int data_disable;
346
347     SpecifierOpt *metadata;
348     int        nb_metadata;
349     SpecifierOpt *max_frames;
350     int        nb_max_frames;
351     SpecifierOpt *bitstream_filters;
352     int        nb_bitstream_filters;
353     SpecifierOpt *codec_tags;
354     int        nb_codec_tags;
355 } OptionsContext;
356
357 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
358 {\
359     int i, ret;\
360     for (i = 0; i < o->nb_ ## name; i++) {\
361         char *spec = o->name[i].specifier;\
362         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
363             outvar = o->name[i].u.type;\
364         else if (ret < 0)\
365             exit_program(1);\
366     }\
367 }
368
369 static void reset_options(OptionsContext *o, int is_input)
370 {
371     const OptionDef *po = options;
372     OptionsContext bak= *o;
373
374     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
375     while (po->name) {
376         void *dst = (uint8_t*)o + po->u.off;
377
378         if (po->flags & OPT_SPEC) {
379             SpecifierOpt **so = dst;
380             int i, *count = (int*)(so + 1);
381             for (i = 0; i < *count; i++) {
382                 av_freep(&(*so)[i].specifier);
383                 if (po->flags & OPT_STRING)
384                     av_freep(&(*so)[i].u.str);
385             }
386             av_freep(so);
387             *count = 0;
388         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
389             av_freep(dst);
390         po++;
391     }
392
393     av_freep(&o->stream_maps);
394     av_freep(&o->meta_data_maps);
395
396     memset(o, 0, sizeof(*o));
397
398     if(is_input) o->recording_time = bak.recording_time;
399     else         o->recording_time = INT64_MAX;
400     o->mux_preload    = 0.5;
401     o->mux_max_delay  = 0.7;
402     o->limit_filesize = UINT64_MAX;
403     o->chapters_input_file = INT_MAX;
404
405     uninit_opts();
406     init_opts();
407 }
408
409 #if CONFIG_AVFILTER
410
411 static int configure_video_filters(InputStream *ist, OutputStream *ost)
412 {
413     AVFilterContext *last_filter, *filter;
414     /** filter graph containing all filters including input & output */
415     AVCodecContext *codec = ost->st->codec;
416     AVCodecContext *icodec = ist->st->codec;
417     enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
418     AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
419     AVRational sample_aspect_ratio;
420     char args[255];
421     int ret;
422
423     ost->graph = avfilter_graph_alloc();
424
425     if (ist->st->sample_aspect_ratio.num){
426         sample_aspect_ratio = ist->st->sample_aspect_ratio;
427     }else
428         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
429
430     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
431              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
432              sample_aspect_ratio.num, sample_aspect_ratio.den);
433
434     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
435                                        "src", args, NULL, ost->graph);
436     if (ret < 0)
437         return ret;
438 #if FF_API_OLD_VSINK_API
439     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
440                                        "out", NULL, pix_fmts, ost->graph);
441 #else
442     buffersink_params->pixel_fmts = pix_fmts;
443     ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
444                                        "out", NULL, buffersink_params, ost->graph);
445 #endif
446     av_freep(&buffersink_params);
447     if (ret < 0)
448         return ret;
449     last_filter = ost->input_video_filter;
450
451     if (codec->width  != icodec->width || codec->height != icodec->height) {
452         snprintf(args, 255, "%d:%d:flags=0x%X",
453                  codec->width,
454                  codec->height,
455                  ost->sws_flags);
456         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
457                                                 NULL, args, NULL, ost->graph)) < 0)
458             return ret;
459         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
460             return ret;
461         last_filter = filter;
462     }
463
464     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
465     ost->graph->scale_sws_opts = av_strdup(args);
466
467     if (ost->avfilter) {
468         AVFilterInOut *outputs = avfilter_inout_alloc();
469         AVFilterInOut *inputs  = avfilter_inout_alloc();
470
471         outputs->name    = av_strdup("in");
472         outputs->filter_ctx = last_filter;
473         outputs->pad_idx = 0;
474         outputs->next    = NULL;
475
476         inputs->name    = av_strdup("out");
477         inputs->filter_ctx = ost->output_video_filter;
478         inputs->pad_idx = 0;
479         inputs->next    = NULL;
480
481         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
482             return ret;
483         av_freep(&ost->avfilter);
484     } else {
485         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
486             return ret;
487     }
488
489     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
490         return ret;
491
492     codec->width  = ost->output_video_filter->inputs[0]->w;
493     codec->height = ost->output_video_filter->inputs[0]->h;
494     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
495         ost->frame_aspect_ratio ? // overridden by the -aspect cli option
496         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
497         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
498
499     return 0;
500 }
501 #endif /* CONFIG_AVFILTER */
502
503 static void term_exit(void)
504 {
505     av_log(NULL, AV_LOG_QUIET, "%s", "");
506 #if HAVE_TERMIOS_H
507     if(!run_as_daemon)
508         tcsetattr (0, TCSANOW, &oldtty);
509 #endif
510 }
511
512 static volatile int received_sigterm = 0;
513
514 static void
515 sigterm_handler(int sig)
516 {
517     received_sigterm = sig;
518     q_pressed++;
519     term_exit();
520 }
521
522 static void term_init(void)
523 {
524 #if HAVE_TERMIOS_H
525     if(!run_as_daemon){
526     struct termios tty;
527
528     tcgetattr (0, &tty);
529     oldtty = tty;
530     atexit(term_exit);
531
532     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
533                           |INLCR|IGNCR|ICRNL|IXON);
534     tty.c_oflag |= OPOST;
535     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
536     tty.c_cflag &= ~(CSIZE|PARENB);
537     tty.c_cflag |= CS8;
538     tty.c_cc[VMIN] = 1;
539     tty.c_cc[VTIME] = 0;
540
541     tcsetattr (0, TCSANOW, &tty);
542     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
543     }
544 #endif
545
546     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
547     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
548 #ifdef SIGXCPU
549     signal(SIGXCPU, sigterm_handler);
550 #endif
551 }
552
553 /* read a key without blocking */
554 static int read_key(void)
555 {
556     unsigned char ch;
557 #if HAVE_TERMIOS_H
558     int n = 1;
559     struct timeval tv;
560     fd_set rfds;
561
562     if(run_as_daemon)
563         return -1;
564
565     FD_ZERO(&rfds);
566     FD_SET(0, &rfds);
567     tv.tv_sec = 0;
568     tv.tv_usec = 0;
569     n = select(1, &rfds, NULL, NULL, &tv);
570     if (n > 0) {
571         n = read(0, &ch, 1);
572         if (n == 1)
573             return ch;
574
575         return n;
576     }
577 #elif HAVE_KBHIT
578 #    if HAVE_PEEKNAMEDPIPE
579     static int is_pipe;
580     static HANDLE input_handle;
581     DWORD dw, nchars;
582     if(!input_handle){
583         input_handle = GetStdHandle(STD_INPUT_HANDLE);
584         is_pipe = !GetConsoleMode(input_handle, &dw);
585     }
586
587     if (stdin->_cnt > 0) {
588         read(0, &ch, 1);
589         return ch;
590     }
591     if (is_pipe) {
592         /* When running under a GUI, you will end here. */
593         if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
594             return -1;
595         //Read it
596         if(nchars != 0) {
597             read(0, &ch, 1);
598             return ch;
599         }else{
600             return -1;
601         }
602     }
603 #    endif
604     if(kbhit())
605         return(getch());
606 #endif
607     return -1;
608 }
609
610 static int decode_interrupt_cb(void)
611 {
612     q_pressed += read_key() == 'q';
613     return q_pressed > 1;
614 }
615
616 void exit_program(int ret)
617 {
618     int i;
619
620     /* close files */
621     for(i=0;i<nb_output_files;i++) {
622         AVFormatContext *s = output_files[i].ctx;
623         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
624             avio_close(s->pb);
625         avformat_free_context(s);
626         av_dict_free(&output_files[i].opts);
627     }
628     for(i=0;i<nb_input_files;i++) {
629         av_close_input_file(input_files[i].ctx);
630     }
631     for (i = 0; i < nb_input_streams; i++)
632         av_dict_free(&input_streams[i].opts);
633
634     av_free(intra_matrix);
635     av_free(inter_matrix);
636
637     if (vstats_file)
638         fclose(vstats_file);
639     av_free(vstats_filename);
640
641     av_freep(&input_streams);
642     av_freep(&input_files);
643     av_freep(&output_streams);
644     av_freep(&output_files);
645
646     uninit_opts();
647     av_free(audio_buf);
648     av_free(audio_out);
649     allocated_audio_buf_size= allocated_audio_out_size= 0;
650     av_free(samples);
651
652 #if CONFIG_AVFILTER
653     avfilter_uninit();
654 #endif
655
656     av_freep(&input_tmp);
657
658     if (received_sigterm) {
659         fprintf(stderr,
660             "Received signal %d: terminating.\n",
661             (int) received_sigterm);
662         exit (255);
663     }
664
665     exit(ret); /* not all OS-es handle main() return value */
666 }
667
668 static void assert_avoptions(AVDictionary *m)
669 {
670     AVDictionaryEntry *t;
671     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
672         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
673         exit_program(1);
674     }
675 }
676
677 static void assert_codec_experimental(AVCodecContext *c, int encoder)
678 {
679     const char *codec_string = encoder ? "encoder" : "decoder";
680     AVCodec *codec;
681     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
682         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
683         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
684                 "results.\nAdd '-strict experimental' if you want to use it.\n",
685                 codec_string, c->codec->name);
686         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
687         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
688             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
689                    codec_string, codec->name);
690         exit_program(1);
691     }
692 }
693
694 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
695 {
696     if(codec && codec->sample_fmts){
697         const enum AVSampleFormat *p= codec->sample_fmts;
698         for(; *p!=-1; p++){
699             if(*p == st->codec->sample_fmt)
700                 break;
701         }
702         if (*p == -1) {
703             if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
704                 av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
705             if(av_get_sample_fmt_name(st->codec->sample_fmt))
706             av_log(NULL, AV_LOG_WARNING,
707                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
708                    av_get_sample_fmt_name(st->codec->sample_fmt),
709                    codec->name,
710                    av_get_sample_fmt_name(codec->sample_fmts[0]));
711             st->codec->sample_fmt = codec->sample_fmts[0];
712         }
713     }
714 }
715
716 static void choose_sample_rate(AVStream *st, AVCodec *codec)
717 {
718     if(codec && codec->supported_samplerates){
719         const int *p= codec->supported_samplerates;
720         int best=0;
721         int best_dist=INT_MAX;
722         for(; *p; p++){
723             int dist= abs(st->codec->sample_rate - *p);
724             if(dist < best_dist){
725                 best_dist= dist;
726                 best= *p;
727             }
728         }
729         if(best_dist){
730             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
731         }
732         st->codec->sample_rate= best;
733     }
734 }
735
736 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
737 {
738     if(codec && codec->pix_fmts){
739         const enum PixelFormat *p= codec->pix_fmts;
740         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
741             if(st->codec->codec_id==CODEC_ID_MJPEG){
742                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
743             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
744                 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};
745             }
746         }
747         for(; *p!=-1; p++){
748             if(*p == st->codec->pix_fmt)
749                 break;
750         }
751         if (*p == -1) {
752             if(st->codec->pix_fmt != PIX_FMT_NONE)
753                 av_log(NULL, AV_LOG_WARNING,
754                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
755                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
756                         codec->name,
757                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
758             st->codec->pix_fmt = codec->pix_fmts[0];
759         }
760     }
761 }
762
763 static double
764 get_sync_ipts(const OutputStream *ost)
765 {
766     const InputStream *ist = ost->sync_ist;
767     OutputFile *of = &output_files[ost->file_index];
768     return (double)(ist->pts - of->start_time)/AV_TIME_BASE;
769 }
770
771 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
772     int ret;
773
774     while(bsfc){
775         AVPacket new_pkt= *pkt;
776         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
777                                           &new_pkt.data, &new_pkt.size,
778                                           pkt->data, pkt->size,
779                                           pkt->flags & AV_PKT_FLAG_KEY);
780         if(a>0){
781             av_free_packet(pkt);
782             new_pkt.destruct= av_destruct_packet;
783         } else if(a<0){
784             fprintf(stderr, "%s failed for stream %d, codec %s",
785                     bsfc->filter->name, pkt->stream_index,
786                     avctx->codec ? avctx->codec->name : "copy");
787             print_error("", a);
788             if (exit_on_error)
789                 exit_program(1);
790         }
791         *pkt= new_pkt;
792
793         bsfc= bsfc->next;
794     }
795
796     ret= av_interleaved_write_frame(s, pkt);
797     if(ret < 0){
798         print_error("av_interleaved_write_frame()", ret);
799         exit_program(1);
800     }
801 }
802
803 static void do_audio_out(AVFormatContext *s,
804                          OutputStream *ost,
805                          InputStream *ist,
806                          unsigned char *buf, int size)
807 {
808     uint8_t *buftmp;
809     int64_t audio_out_size, audio_buf_size;
810     int64_t allocated_for_size= size;
811
812     int size_out, frame_bytes, ret, resample_changed;
813     AVCodecContext *enc= ost->st->codec;
814     AVCodecContext *dec= ist->st->codec;
815     int osize = av_get_bytes_per_sample(enc->sample_fmt);
816     int isize = av_get_bytes_per_sample(dec->sample_fmt);
817     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
818
819 need_realloc:
820     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
821     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
822     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
823     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
824     audio_buf_size*= osize*enc->channels;
825
826     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
827     if(coded_bps > 8*osize)
828         audio_out_size= audio_out_size * coded_bps / (8*osize);
829     audio_out_size += FF_MIN_BUFFER_SIZE;
830
831     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
832         fprintf(stderr, "Buffer sizes too large\n");
833         exit_program(1);
834     }
835
836     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
837     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
838     if (!audio_buf || !audio_out){
839         fprintf(stderr, "Out of memory in do_audio_out\n");
840         exit_program(1);
841     }
842
843     if (enc->channels != dec->channels)
844         ost->audio_resample = 1;
845
846     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
847                        ost->resample_channels    != dec->channels   ||
848                        ost->resample_sample_rate != dec->sample_rate;
849
850     if ((ost->audio_resample && !ost->resample) || resample_changed) {
851         if (resample_changed) {
852             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",
853                    ist->file_index, ist->st->index,
854                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
855                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
856             ost->resample_sample_fmt  = dec->sample_fmt;
857             ost->resample_channels    = dec->channels;
858             ost->resample_sample_rate = dec->sample_rate;
859             if (ost->resample)
860                 audio_resample_close(ost->resample);
861         }
862         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
863         if (audio_sync_method <= 1 &&
864             ost->resample_sample_fmt  == enc->sample_fmt &&
865             ost->resample_channels    == enc->channels   &&
866             ost->resample_sample_rate == enc->sample_rate) {
867             ost->resample = NULL;
868             ost->audio_resample = 0;
869         } else {
870             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
871                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
872             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
873                                                    enc->sample_rate, dec->sample_rate,
874                                                    enc->sample_fmt,  dec->sample_fmt,
875                                                    16, 10, 0, 0.8);
876             if (!ost->resample) {
877                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
878                         dec->channels, dec->sample_rate,
879                         enc->channels, enc->sample_rate);
880                 exit_program(1);
881             }
882         }
883     }
884
885 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
886     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
887         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
888         if (ost->reformat_ctx)
889             av_audio_convert_free(ost->reformat_ctx);
890         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
891                                                    dec->sample_fmt, 1, NULL, 0);
892         if (!ost->reformat_ctx) {
893             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
894                 av_get_sample_fmt_name(dec->sample_fmt),
895                 av_get_sample_fmt_name(enc->sample_fmt));
896             exit_program(1);
897         }
898         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
899     }
900
901     if(audio_sync_method){
902         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
903                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
904         double idelta= delta*dec->sample_rate / enc->sample_rate;
905         int byte_delta= ((int)idelta)*2*dec->channels;
906
907         //FIXME resample delay
908         if(fabs(delta) > 50){
909             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
910                 if(byte_delta < 0){
911                     byte_delta= FFMAX(byte_delta, -size);
912                     size += byte_delta;
913                     buf  -= byte_delta;
914                     if(verbose > 2)
915                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
916                     if(!size)
917                         return;
918                     ist->is_start=0;
919                 }else{
920                     input_tmp= av_realloc(input_tmp, byte_delta + size);
921
922                     if(byte_delta > allocated_for_size - size){
923                         allocated_for_size= byte_delta + (int64_t)size;
924                         goto need_realloc;
925                     }
926                     ist->is_start=0;
927
928                     memset(input_tmp, 0, byte_delta);
929                     memcpy(input_tmp + byte_delta, buf, size);
930                     buf= input_tmp;
931                     size += byte_delta;
932                     if(verbose > 2)
933                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
934                 }
935             }else if(audio_sync_method>1){
936                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
937                 av_assert0(ost->audio_resample);
938                 if(verbose > 2)
939                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
940 //                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));
941                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
942             }
943         }
944     }else
945         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
946                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
947
948     if (ost->audio_resample) {
949         buftmp = audio_buf;
950         size_out = audio_resample(ost->resample,
951                                   (short *)buftmp, (short *)buf,
952                                   size / (dec->channels * isize));
953         size_out = size_out * enc->channels * osize;
954     } else {
955         buftmp = buf;
956         size_out = size;
957     }
958
959     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
960         const void *ibuf[6]= {buftmp};
961         void *obuf[6]= {audio_buf};
962         int istride[6]= {isize};
963         int ostride[6]= {osize};
964         int len= size_out/istride[0];
965         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
966             printf("av_audio_convert() failed\n");
967             if (exit_on_error)
968                 exit_program(1);
969             return;
970         }
971         buftmp = audio_buf;
972         size_out = len*osize;
973     }
974
975     /* now encode as many frames as possible */
976     if (enc->frame_size > 1) {
977         /* output resampled raw samples */
978         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
979             fprintf(stderr, "av_fifo_realloc2() failed\n");
980             exit_program(1);
981         }
982         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
983
984         frame_bytes = enc->frame_size * osize * enc->channels;
985
986         while (av_fifo_size(ost->fifo) >= frame_bytes) {
987             AVPacket pkt;
988             av_init_packet(&pkt);
989
990             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
991
992             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
993
994             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
995                                        (short *)audio_buf);
996             if (ret < 0) {
997                 fprintf(stderr, "Audio encoding failed\n");
998                 exit_program(1);
999             }
1000             audio_size += ret;
1001             pkt.stream_index= ost->index;
1002             pkt.data= audio_out;
1003             pkt.size= ret;
1004             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1005                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1006             pkt.flags |= AV_PKT_FLAG_KEY;
1007             write_frame(s, &pkt, enc, ost->bitstream_filters);
1008
1009             ost->sync_opts += enc->frame_size;
1010         }
1011     } else {
1012         AVPacket pkt;
1013         av_init_packet(&pkt);
1014
1015         ost->sync_opts += size_out / (osize * enc->channels);
1016
1017         /* output a pcm frame */
1018         /* determine the size of the coded buffer */
1019         size_out /= osize;
1020         if (coded_bps)
1021             size_out = size_out*coded_bps/8;
1022
1023         if(size_out > audio_out_size){
1024             fprintf(stderr, "Internal error, buffer size too small\n");
1025             exit_program(1);
1026         }
1027
1028         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1029         ret = avcodec_encode_audio(enc, audio_out, size_out,
1030                                    (short *)buftmp);
1031         if (ret < 0) {
1032             fprintf(stderr, "Audio encoding failed\n");
1033             exit_program(1);
1034         }
1035         audio_size += ret;
1036         pkt.stream_index= ost->index;
1037         pkt.data= audio_out;
1038         pkt.size= ret;
1039         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1040             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1041         pkt.flags |= AV_PKT_FLAG_KEY;
1042         write_frame(s, &pkt, enc, ost->bitstream_filters);
1043     }
1044 }
1045
1046 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1047 {
1048     AVCodecContext *dec;
1049     AVPicture *picture2;
1050     AVPicture picture_tmp;
1051     uint8_t *buf = 0;
1052
1053     dec = ist->st->codec;
1054
1055     /* deinterlace : must be done before any resize */
1056     if (do_deinterlace) {
1057         int size;
1058
1059         /* create temporary picture */
1060         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1061         buf = av_malloc(size);
1062         if (!buf)
1063             return;
1064
1065         picture2 = &picture_tmp;
1066         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1067
1068         if(avpicture_deinterlace(picture2, picture,
1069                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1070             /* if error, do not deinterlace */
1071             fprintf(stderr, "Deinterlacing failed\n");
1072             av_free(buf);
1073             buf = NULL;
1074             picture2 = picture;
1075         }
1076     } else {
1077         picture2 = picture;
1078     }
1079
1080     if (picture != picture2)
1081         *picture = *picture2;
1082     *bufp = buf;
1083 }
1084
1085 static void do_subtitle_out(AVFormatContext *s,
1086                             OutputStream *ost,
1087                             InputStream *ist,
1088                             AVSubtitle *sub,
1089                             int64_t pts)
1090 {
1091     static uint8_t *subtitle_out = NULL;
1092     int subtitle_out_max_size = 1024 * 1024;
1093     int subtitle_out_size, nb, i;
1094     AVCodecContext *enc;
1095     AVPacket pkt;
1096
1097     if (pts == AV_NOPTS_VALUE) {
1098         fprintf(stderr, "Subtitle packets must have a pts\n");
1099         if (exit_on_error)
1100             exit_program(1);
1101         return;
1102     }
1103
1104     enc = ost->st->codec;
1105
1106     if (!subtitle_out) {
1107         subtitle_out = av_malloc(subtitle_out_max_size);
1108     }
1109
1110     /* Note: DVB subtitle need one packet to draw them and one other
1111        packet to clear them */
1112     /* XXX: signal it in the codec context ? */
1113     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1114         nb = 2;
1115     else
1116         nb = 1;
1117
1118     for(i = 0; i < nb; i++) {
1119         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1120         // start_display_time is required to be 0
1121         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1122         sub->end_display_time -= sub->start_display_time;
1123         sub->start_display_time = 0;
1124         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1125                                                     subtitle_out_max_size, sub);
1126         if (subtitle_out_size < 0) {
1127             fprintf(stderr, "Subtitle encoding failed\n");
1128             exit_program(1);
1129         }
1130
1131         av_init_packet(&pkt);
1132         pkt.stream_index = ost->index;
1133         pkt.data = subtitle_out;
1134         pkt.size = subtitle_out_size;
1135         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1136         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1137             /* XXX: the pts correction is handled here. Maybe handling
1138                it in the codec would be better */
1139             if (i == 0)
1140                 pkt.pts += 90 * sub->start_display_time;
1141             else
1142                 pkt.pts += 90 * sub->end_display_time;
1143         }
1144         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1145     }
1146 }
1147
1148 static int bit_buffer_size= 1024*256;
1149 static uint8_t *bit_buffer= NULL;
1150
1151 static void do_video_resample(OutputStream *ost,
1152                               InputStream *ist,
1153                               AVFrame *in_picture,
1154                               AVFrame **out_picture)
1155 {
1156 #if CONFIG_AVFILTER
1157     *out_picture = in_picture;
1158 #else
1159     AVCodecContext *dec = ist->st->codec;
1160     AVCodecContext *enc = ost->st->codec;
1161     int resample_changed = ost->resample_width   != dec->width  ||
1162                            ost->resample_height  != dec->height ||
1163                            ost->resample_pix_fmt != dec->pix_fmt;
1164
1165     *out_picture = in_picture;
1166     if (resample_changed) {
1167         av_log(NULL, AV_LOG_INFO,
1168                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1169                ist->file_index, ist->st->index,
1170                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1171                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1172         ost->resample_width   = dec->width;
1173         ost->resample_height  = dec->height;
1174         ost->resample_pix_fmt = dec->pix_fmt;
1175     }
1176
1177     ost->video_resample = dec->width   != enc->width  ||
1178                           dec->height  != enc->height ||
1179                           dec->pix_fmt != enc->pix_fmt;
1180
1181     if (ost->video_resample) {
1182         *out_picture = &ost->resample_frame;
1183         if (!ost->img_resample_ctx || resample_changed) {
1184             /* initialize the destination picture */
1185             if (!ost->resample_frame.data[0]) {
1186                 avcodec_get_frame_defaults(&ost->resample_frame);
1187                 if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
1188                                     enc->width, enc->height)) {
1189                     fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1190                     exit_program(1);
1191                 }
1192             }
1193             /* initialize a new scaler context */
1194             sws_freeContext(ost->img_resample_ctx);
1195             ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
1196                                                    enc->width, enc->height, enc->pix_fmt,
1197                                                    ost->sws_flags, NULL, NULL, NULL);
1198             if (ost->img_resample_ctx == NULL) {
1199                 fprintf(stderr, "Cannot get resampling context\n");
1200                 exit_program(1);
1201             }
1202         }
1203         sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
1204               0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
1205     }
1206 #endif
1207 }
1208
1209
1210 static void do_video_out(AVFormatContext *s,
1211                          OutputStream *ost,
1212                          InputStream *ist,
1213                          AVFrame *in_picture,
1214                          int *frame_size, float quality)
1215 {
1216     int nb_frames, i, ret, format_video_sync;
1217     AVFrame *final_picture;
1218     AVCodecContext *enc;
1219     double sync_ipts;
1220
1221     enc = ost->st->codec;
1222
1223     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1224
1225     /* by default, we output a single frame */
1226     nb_frames = 1;
1227
1228     *frame_size = 0;
1229
1230     format_video_sync = video_sync_method;
1231     if (format_video_sync < 0)
1232         format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1;
1233
1234     if (format_video_sync) {
1235         double vdelta = sync_ipts - ost->sync_opts;
1236         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1237         if (vdelta < -1.1)
1238             nb_frames = 0;
1239         else if (format_video_sync == 2) {
1240             if(vdelta<=-0.6){
1241                 nb_frames=0;
1242             }else if(vdelta>0.6)
1243                 ost->sync_opts= lrintf(sync_ipts);
1244         }else if (vdelta > 1.1)
1245             nb_frames = lrintf(vdelta);
1246 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1247         if (nb_frames == 0){
1248             ++nb_frames_drop;
1249             if (verbose>2)
1250                 fprintf(stderr, "*** drop!\n");
1251         }else if (nb_frames > 1) {
1252             nb_frames_dup += nb_frames - 1;
1253             if (verbose>2)
1254                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1255         }
1256     }else
1257         ost->sync_opts= lrintf(sync_ipts);
1258
1259     nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
1260     if (nb_frames <= 0)
1261         return;
1262
1263     do_video_resample(ost, ist, in_picture, &final_picture);
1264
1265     /* duplicates frame if needed */
1266     for(i=0;i<nb_frames;i++) {
1267         AVPacket pkt;
1268         av_init_packet(&pkt);
1269         pkt.stream_index= ost->index;
1270
1271         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1272             /* raw pictures are written as AVPicture structure to
1273                avoid any copies. We support temporarily the older
1274                method. */
1275             enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
1276             enc->coded_frame->top_field_first  = in_picture->top_field_first;
1277             pkt.data= (uint8_t *)final_picture;
1278             pkt.size=  sizeof(AVPicture);
1279             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1280             pkt.flags |= AV_PKT_FLAG_KEY;
1281
1282             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1283         } else {
1284             AVFrame big_picture;
1285
1286             big_picture= *final_picture;
1287             /* better than nothing: use input picture interlaced
1288                settings */
1289             big_picture.interlaced_frame = in_picture->interlaced_frame;
1290             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1291                 if(top_field_first == -1)
1292                     big_picture.top_field_first = in_picture->top_field_first;
1293                 else
1294                     big_picture.top_field_first = top_field_first;
1295             }
1296
1297             /* handles same_quant here. This is not correct because it may
1298                not be a global option */
1299             big_picture.quality = quality;
1300             if(!me_threshold)
1301                 big_picture.pict_type = 0;
1302 //            big_picture.pts = AV_NOPTS_VALUE;
1303             big_picture.pts= ost->sync_opts;
1304 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1305 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1306             if (ost->forced_kf_index < ost->forced_kf_count &&
1307                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1308                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1309                 ost->forced_kf_index++;
1310             }
1311             ret = avcodec_encode_video(enc,
1312                                        bit_buffer, bit_buffer_size,
1313                                        &big_picture);
1314             if (ret < 0) {
1315                 fprintf(stderr, "Video encoding failed\n");
1316                 exit_program(1);
1317             }
1318
1319             if(ret>0){
1320                 pkt.data= bit_buffer;
1321                 pkt.size= ret;
1322                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1323                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1324 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1325    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1326    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1327
1328                 if(enc->coded_frame->key_frame)
1329                     pkt.flags |= AV_PKT_FLAG_KEY;
1330                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1331                 *frame_size = ret;
1332                 video_size += ret;
1333                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1334                 //        enc->frame_number-1, ret, enc->pict_type);
1335                 /* if two pass, output log */
1336                 if (ost->logfile && enc->stats_out) {
1337                     fprintf(ost->logfile, "%s", enc->stats_out);
1338                 }
1339             }
1340         }
1341         ost->sync_opts++;
1342         ost->frame_number++;
1343     }
1344 }
1345
1346 static double psnr(double d){
1347     return -10.0*log(d)/log(10.0);
1348 }
1349
1350 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1351                            int frame_size)
1352 {
1353     AVCodecContext *enc;
1354     int frame_number;
1355     double ti1, bitrate, avg_bitrate;
1356
1357     /* this is executed just the first time do_video_stats is called */
1358     if (!vstats_file) {
1359         vstats_file = fopen(vstats_filename, "w");
1360         if (!vstats_file) {
1361             perror("fopen");
1362             exit_program(1);
1363         }
1364     }
1365
1366     enc = ost->st->codec;
1367     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1368         frame_number = ost->frame_number;
1369         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1370         if (enc->flags&CODEC_FLAG_PSNR)
1371             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1372
1373         fprintf(vstats_file,"f_size= %6d ", frame_size);
1374         /* compute pts value */
1375         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1376         if (ti1 < 0.01)
1377             ti1 = 0.01;
1378
1379         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1380         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1381         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1382             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1383         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1384     }
1385 }
1386
1387 static void print_report(OutputFile *output_files,
1388                          OutputStream *ost_table, int nb_ostreams,
1389                          int is_last_report, int64_t timer_start)
1390 {
1391     char buf[1024];
1392     OutputStream *ost;
1393     AVFormatContext *oc;
1394     int64_t total_size;
1395     AVCodecContext *enc;
1396     int frame_number, vid, i;
1397     double bitrate;
1398     int64_t pts = INT64_MAX;
1399     static int64_t last_time = -1;
1400     static int qp_histogram[52];
1401
1402     if (!is_last_report) {
1403         int64_t cur_time;
1404         /* display the report every 0.5 seconds */
1405         cur_time = av_gettime();
1406         if (last_time == -1) {
1407             last_time = cur_time;
1408             return;
1409         }
1410         if ((cur_time - last_time) < 500000)
1411             return;
1412         last_time = cur_time;
1413     }
1414
1415
1416     oc = output_files[0].ctx;
1417
1418     total_size = avio_size(oc->pb);
1419     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1420         total_size= avio_tell(oc->pb);
1421
1422     buf[0] = '\0';
1423     vid = 0;
1424     for(i=0;i<nb_ostreams;i++) {
1425         float q = -1;
1426         ost = &ost_table[i];
1427         enc = ost->st->codec;
1428         if (!ost->st->stream_copy && enc->coded_frame)
1429             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1430         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1431             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1432         }
1433         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1434             float t = (av_gettime()-timer_start) / 1000000.0;
1435
1436             frame_number = ost->frame_number;
1437             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1438                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1439             if(is_last_report)
1440                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1441             if(qp_hist){
1442                 int j;
1443                 int qp = lrintf(q);
1444                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1445                     qp_histogram[qp]++;
1446                 for(j=0; j<32; j++)
1447                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1448             }
1449             if (enc->flags&CODEC_FLAG_PSNR){
1450                 int j;
1451                 double error, error_sum=0;
1452                 double scale, scale_sum=0;
1453                 char type[3]= {'Y','U','V'};
1454                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1455                 for(j=0; j<3; j++){
1456                     if(is_last_report){
1457                         error= enc->error[j];
1458                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1459                     }else{
1460                         error= enc->coded_frame->error[j];
1461                         scale= enc->width*enc->height*255.0*255.0;
1462                     }
1463                     if(j) scale/=4;
1464                     error_sum += error;
1465                     scale_sum += scale;
1466                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1467                 }
1468                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1469             }
1470             vid = 1;
1471         }
1472         /* compute min output value */
1473         pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
1474                                       ost->st->time_base, AV_TIME_BASE_Q));
1475     }
1476
1477     if (verbose > 0 || is_last_report) {
1478         int hours, mins, secs, us;
1479         secs = pts / AV_TIME_BASE;
1480         us = pts % AV_TIME_BASE;
1481         mins = secs / 60;
1482         secs %= 60;
1483         hours = mins / 60;
1484         mins %= 60;
1485
1486         bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
1487
1488         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1489                  "size=%8.0fkB time=", total_size / 1024.0);
1490         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1491                  "%02d:%02d:%02d.%02d ", hours, mins, secs,
1492                  (100 * us) / AV_TIME_BASE);
1493         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1494                  "bitrate=%6.1fkbits/s", bitrate);
1495
1496         if (nb_frames_dup || nb_frames_drop)
1497           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1498                   nb_frames_dup, nb_frames_drop);
1499
1500         if (verbose >= 0)
1501             fprintf(stderr, "%s    \r", buf);
1502
1503         fflush(stderr);
1504     }
1505
1506     if (is_last_report && verbose >= 0){
1507         int64_t raw= audio_size + video_size + extra_size;
1508         fprintf(stderr, "\n");
1509         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1510                 video_size/1024.0,
1511                 audio_size/1024.0,
1512                 extra_size/1024.0,
1513                 100.0*(total_size - raw)/raw
1514         );
1515     }
1516 }
1517
1518 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1519 {
1520     int fill_char = 0x00;
1521     if (sample_fmt == AV_SAMPLE_FMT_U8)
1522         fill_char = 0x80;
1523     memset(buf, fill_char, size);
1524 }
1525
1526 static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
1527 {
1528     int i, ret;
1529
1530     for (i = 0; i < nb_ostreams; i++) {
1531         OutputStream   *ost = &ost_table[i];
1532         AVCodecContext *enc = ost->st->codec;
1533         AVFormatContext *os = output_files[ost->file_index].ctx;
1534
1535         if (!ost->encoding_needed)
1536             continue;
1537
1538         if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1539             continue;
1540         if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1541             continue;
1542
1543         for(;;) {
1544             AVPacket pkt;
1545             int fifo_bytes;
1546             av_init_packet(&pkt);
1547             pkt.stream_index= ost->index;
1548
1549             switch (ost->st->codec->codec_type) {
1550             case AVMEDIA_TYPE_AUDIO:
1551                 fifo_bytes = av_fifo_size(ost->fifo);
1552                 ret = 0;
1553                 /* encode any samples remaining in fifo */
1554                 if (fifo_bytes > 0) {
1555                     int osize = av_get_bytes_per_sample(enc->sample_fmt);
1556                     int fs_tmp = enc->frame_size;
1557
1558                     av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1559                     if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1560                         enc->frame_size = fifo_bytes / (osize * enc->channels);
1561                     } else { /* pad */
1562                         int frame_bytes = enc->frame_size*osize*enc->channels;
1563                         if (allocated_audio_buf_size < frame_bytes)
1564                             exit_program(1);
1565                         generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1566                     }
1567
1568                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1569                     pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1570                                               ost->st->time_base.num, enc->sample_rate);
1571                     enc->frame_size = fs_tmp;
1572                 }
1573                 if (ret <= 0) {
1574                     ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1575                 }
1576                 if (ret < 0) {
1577                     fprintf(stderr, "Audio encoding failed\n");
1578                     exit_program(1);
1579                 }
1580                 audio_size += ret;
1581                 pkt.flags |= AV_PKT_FLAG_KEY;
1582                 break;
1583             case AVMEDIA_TYPE_VIDEO:
1584                 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1585                 if (ret < 0) {
1586                     fprintf(stderr, "Video encoding failed\n");
1587                     exit_program(1);
1588                 }
1589                 video_size += ret;
1590                 if(enc->coded_frame && enc->coded_frame->key_frame)
1591                     pkt.flags |= AV_PKT_FLAG_KEY;
1592                 if (ost->logfile && enc->stats_out) {
1593                     fprintf(ost->logfile, "%s", enc->stats_out);
1594                 }
1595                 break;
1596             default:
1597                 ret=-1;
1598             }
1599
1600             if (ret <= 0)
1601                 break;
1602             pkt.data = bit_buffer;
1603             pkt.size = ret;
1604             if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1605                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1606             write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1607         }
1608     }
1609 }
1610
1611 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1612 static int output_packet(InputStream *ist, int ist_index,
1613                          OutputStream *ost_table, int nb_ostreams,
1614                          const AVPacket *pkt)
1615 {
1616     AVFormatContext *os;
1617     OutputStream *ost;
1618     int ret, i;
1619     int got_output;
1620     AVFrame picture;
1621     void *buffer_to_free = NULL;
1622     static unsigned int samples_size= 0;
1623     AVSubtitle subtitle, *subtitle_to_free;
1624     int64_t pkt_pts = AV_NOPTS_VALUE;
1625 #if CONFIG_AVFILTER
1626     int frame_available;
1627 #endif
1628     float quality;
1629
1630     AVPacket avpkt;
1631     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1632
1633     if(ist->next_pts == AV_NOPTS_VALUE)
1634         ist->next_pts= ist->pts;
1635
1636     if (pkt == NULL) {
1637         /* EOF handling */
1638         av_init_packet(&avpkt);
1639         avpkt.data = NULL;
1640         avpkt.size = 0;
1641         goto handle_eof;
1642     } else {
1643         avpkt = *pkt;
1644     }
1645
1646     if(pkt->dts != AV_NOPTS_VALUE)
1647         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1648     if(pkt->pts != AV_NOPTS_VALUE)
1649         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1650
1651     //while we have more to decode or while the decoder did output something on EOF
1652     while (avpkt.size > 0 || (!pkt && got_output)) {
1653         uint8_t *data_buf, *decoded_data_buf;
1654         int data_size, decoded_data_size;
1655     handle_eof:
1656         ist->pts= ist->next_pts;
1657
1658         if(avpkt.size && avpkt.size != pkt->size &&
1659            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1660             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1661             ist->showed_multi_packet_warning=1;
1662         }
1663
1664         /* decode the packet if needed */
1665         decoded_data_buf = NULL; /* fail safe */
1666         decoded_data_size= 0;
1667         data_buf  = avpkt.data;
1668         data_size = avpkt.size;
1669         subtitle_to_free = NULL;
1670         if (ist->decoding_needed) {
1671             switch(ist->st->codec->codec_type) {
1672             case AVMEDIA_TYPE_AUDIO:{
1673                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1674                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1675                     av_free(samples);
1676                     samples= av_malloc(samples_size);
1677                 }
1678                 decoded_data_size= samples_size;
1679                     /* XXX: could avoid copy if PCM 16 bits with same
1680                        endianness as CPU */
1681                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1682                                             &avpkt);
1683                 if (ret < 0)
1684                     return ret;
1685                 avpkt.data += ret;
1686                 avpkt.size -= ret;
1687                 data_size   = ret;
1688                 got_output  = decoded_data_size > 0;
1689                 /* Some bug in mpeg audio decoder gives */
1690                 /* decoded_data_size < 0, it seems they are overflows */
1691                 if (!got_output) {
1692                     /* no audio frame */
1693                     continue;
1694                 }
1695                 decoded_data_buf = (uint8_t *)samples;
1696                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1697                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1698                 break;}
1699             case AVMEDIA_TYPE_VIDEO:
1700                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1701                     /* XXX: allocate picture correctly */
1702                     avcodec_get_frame_defaults(&picture);
1703                     avpkt.pts = pkt_pts;
1704                     avpkt.dts = ist->pts;
1705                     pkt_pts = AV_NOPTS_VALUE;
1706
1707                     ret = avcodec_decode_video2(ist->st->codec,
1708                                                 &picture, &got_output, &avpkt);
1709                     quality = same_quant ? picture.quality : 0;
1710                     if (ret < 0)
1711                         return ret;
1712                     if (!got_output) {
1713                         /* no picture yet */
1714                         goto discard_packet;
1715                     }
1716                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1717                     if (ist->st->codec->time_base.num != 0) {
1718                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1719                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1720                                           ist->st->codec->time_base.num * ticks) /
1721                             ist->st->codec->time_base.den;
1722                     }
1723                     avpkt.size = 0;
1724                     buffer_to_free = NULL;
1725                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1726                     break;
1727             case AVMEDIA_TYPE_SUBTITLE:
1728                 ret = avcodec_decode_subtitle2(ist->st->codec,
1729                                                &subtitle, &got_output, &avpkt);
1730                 if (ret < 0)
1731                     return ret;
1732                 if (!got_output) {
1733                     goto discard_packet;
1734                 }
1735                 subtitle_to_free = &subtitle;
1736                 avpkt.size = 0;
1737                 break;
1738             default:
1739                 return -1;
1740             }
1741         } else {
1742             switch(ist->st->codec->codec_type) {
1743             case AVMEDIA_TYPE_AUDIO:
1744                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1745                     ist->st->codec->sample_rate;
1746                 break;
1747             case AVMEDIA_TYPE_VIDEO:
1748                 if (ist->st->codec->time_base.num != 0) {
1749                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1750                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1751                                       ist->st->codec->time_base.num * ticks) /
1752                         ist->st->codec->time_base.den;
1753                 }
1754                 break;
1755             }
1756             avpkt.size = 0;
1757         }
1758
1759 #if CONFIG_AVFILTER
1760         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1761         for(i=0;i<nb_ostreams;i++) {
1762             OutputFile *of = &output_files[ost_table[i].file_index];
1763             if (of->start_time == 0 || ist->pts >= of->start_time) {
1764                 ost = &ost_table[i];
1765                 if (ost->input_video_filter && ost->source_index == ist_index) {
1766                     if (!picture.sample_aspect_ratio.num)
1767                         picture.sample_aspect_ratio = ist->st->sample_aspect_ratio;
1768                     picture.pts = ist->pts;
1769
1770                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture, AV_VSRC_BUF_FLAG_OVERWRITE);
1771                 }
1772             }
1773         }
1774 #endif
1775
1776         // preprocess audio (volume)
1777         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1778             if (audio_volume != 256) {
1779                 short *volp;
1780                 volp = samples;
1781                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1782                     int v = ((*volp) * audio_volume + 128) >> 8;
1783                     *volp++ = av_clip_int16(v);
1784                 }
1785             }
1786         }
1787
1788         /* frame rate emulation */
1789         if (input_files[ist->file_index].rate_emu) {
1790             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1791             int64_t now = av_gettime() - ist->start;
1792             if (pts > now)
1793                 usleep(pts - now);
1794         }
1795         /* if output time reached then transcode raw format,
1796            encode packets and output them */
1797         for (i = 0; i < nb_ostreams; i++) {
1798             OutputFile *of = &output_files[ost_table[i].file_index];
1799             int frame_size;
1800
1801             ost = &ost_table[i];
1802             if (ost->source_index != ist_index)
1803                 continue;
1804
1805             if (of->start_time && ist->pts < of->start_time)
1806                 continue;
1807
1808             if (of->recording_time != INT64_MAX &&
1809                 av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
1810                               (AVRational){1, 1000000}) >= 0) {
1811                 ost->is_past_recording_time = 1;
1812                 continue;
1813             }
1814
1815 #if CONFIG_AVFILTER
1816             frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1817                 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1818             while (frame_available) {
1819                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter) {
1820                     AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
1821                     if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
1822                         goto cont;
1823                     if (ost->picref) {
1824                         avfilter_fill_frame_from_video_buffer_ref(&picture, ost->picref);
1825                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1826                     }
1827                 }
1828 #endif
1829                 os = output_files[ost->file_index].ctx;
1830
1831                 /* set the input output pts pairs */
1832                 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1833
1834                 if (ost->encoding_needed) {
1835                     av_assert0(ist->decoding_needed);
1836                     switch(ost->st->codec->codec_type) {
1837                     case AVMEDIA_TYPE_AUDIO:
1838                         do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1839                         break;
1840                     case AVMEDIA_TYPE_VIDEO:
1841 #if CONFIG_AVFILTER
1842                         if (ost->picref->video && !ost->frame_aspect_ratio)
1843                             ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
1844 #endif
1845                         do_video_out(os, ost, ist, &picture, &frame_size,
1846                                         same_quant ? quality : ost->st->codec->global_quality);
1847                         if (vstats_filename && frame_size)
1848                             do_video_stats(os, ost, frame_size);
1849                         break;
1850                     case AVMEDIA_TYPE_SUBTITLE:
1851                         do_subtitle_out(os, ost, ist, &subtitle,
1852                                         pkt->pts);
1853                         break;
1854                     default:
1855                         abort();
1856                     }
1857                 } else {
1858                     AVFrame avframe; //FIXME/XXX remove this
1859                     AVPicture pict;
1860                     AVPacket opkt;
1861                     int64_t ost_tb_start_time= av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
1862                     av_init_packet(&opkt);
1863
1864                     if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1865 #if !CONFIG_AVFILTER
1866                         continue;
1867 #else
1868                         goto cont;
1869 #endif
1870
1871                     /* no reencoding needed : output the packet directly */
1872                     /* force the input stream PTS */
1873
1874                     avcodec_get_frame_defaults(&avframe);
1875                     ost->st->codec->coded_frame= &avframe;
1876                     avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1877
1878                     if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1879                         audio_size += data_size;
1880                     else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1881                         video_size += data_size;
1882                         ost->sync_opts++;
1883                     }
1884
1885                     opkt.stream_index= ost->index;
1886                     if(pkt->pts != AV_NOPTS_VALUE)
1887                         opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1888                     else
1889                         opkt.pts= AV_NOPTS_VALUE;
1890
1891                     if (pkt->dts == AV_NOPTS_VALUE)
1892                         opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1893                     else
1894                         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1895                     opkt.dts -= ost_tb_start_time;
1896
1897                     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1898                     opkt.flags= pkt->flags;
1899
1900                     //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1901                     if(   ost->st->codec->codec_id != CODEC_ID_H264
1902                        && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1903                        && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1904                        ) {
1905                         if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1906                             opkt.destruct= av_destruct_packet;
1907                     } else {
1908                         opkt.data = data_buf;
1909                         opkt.size = data_size;
1910                     }
1911
1912                     if (os->oformat->flags & AVFMT_RAWPICTURE) {
1913                         /* store AVPicture in AVPacket, as expected by the output format */
1914                         avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
1915                         opkt.data = (uint8_t *)&pict;
1916                         opkt.size = sizeof(AVPicture);
1917                         opkt.flags |= AV_PKT_FLAG_KEY;
1918                     }
1919                     write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1920                     ost->st->codec->frame_number++;
1921                     ost->frame_number++;
1922                     av_free_packet(&opkt);
1923                 }
1924 #if CONFIG_AVFILTER
1925                 cont:
1926                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1927                                    ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1928                 avfilter_unref_buffer(ost->picref);
1929             }
1930 #endif
1931         }
1932
1933         av_free(buffer_to_free);
1934         /* XXX: allocate the subtitles in the codec ? */
1935         if (subtitle_to_free) {
1936             avsubtitle_free(subtitle_to_free);
1937             subtitle_to_free = NULL;
1938         }
1939     }
1940  discard_packet:
1941
1942     return 0;
1943 }
1944
1945 static void print_sdp(OutputFile *output_files, int n)
1946 {
1947     char sdp[2048];
1948     int i;
1949     AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
1950
1951     if (!avc)
1952         exit_program(1);
1953     for (i = 0; i < n; i++)
1954         avc[i] = output_files[i].ctx;
1955
1956     av_sdp_create(avc, n, sdp, sizeof(sdp));
1957     printf("SDP:\n%s\n", sdp);
1958     fflush(stdout);
1959     av_freep(&avc);
1960 }
1961
1962 static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
1963                              char *error, int error_len)
1964 {
1965     InputStream *ist = &input_streams[ist_index];
1966     if (ist->decoding_needed) {
1967         AVCodec *codec = ist->dec;
1968         if (!codec) {
1969             snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d.%d",
1970                     avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
1971             return AVERROR(EINVAL);
1972         }
1973         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
1974             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d",
1975                     ist->file_index, ist->st->index);
1976             return AVERROR(EINVAL);
1977         }
1978         assert_codec_experimental(ist->st->codec, 0);
1979         assert_avoptions(ist->opts);
1980     }
1981
1982     ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1983     ist->next_pts = AV_NOPTS_VALUE;
1984     ist->is_start = 1;
1985
1986     return 0;
1987 }
1988
1989 static int transcode_init(OutputFile *output_files,
1990                           int nb_output_files,
1991                           InputFile *input_files,
1992                           int nb_input_files)
1993 {
1994     int ret = 0, i, j;
1995     AVFormatContext *os;
1996     AVCodecContext *codec, *icodec;
1997     OutputStream *ost;
1998     InputStream *ist;
1999     char error[1024];
2000     int want_sdp = 1;
2001
2002     /* init framerate emulation */
2003     for (i = 0; i < nb_input_files; i++) {
2004         InputFile *ifile = &input_files[i];
2005         if (ifile->rate_emu)
2006             for (j = 0; j < ifile->nb_streams; j++)
2007                 input_streams[j + ifile->ist_index].start = av_gettime();
2008     }
2009
2010     /* output stream init */
2011     for(i=0;i<nb_output_files;i++) {
2012         os = output_files[i].ctx;
2013         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2014             av_dump_format(os, i, os->filename, 1);
2015             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2016             return AVERROR(EINVAL);
2017         }
2018     }
2019
2020     /* for each output stream, we compute the right encoding parameters */
2021     for (i = 0; i < nb_output_streams; i++) {
2022         ost = &output_streams[i];
2023         os = output_files[ost->file_index].ctx;
2024         ist = &input_streams[ost->source_index];
2025
2026         codec = ost->st->codec;
2027         icodec = ist->st->codec;
2028
2029         ost->st->disposition = ist->st->disposition;
2030         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2031         codec->chroma_sample_location = icodec->chroma_sample_location;
2032
2033         if (ost->st->stream_copy) {
2034             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2035
2036             if (extra_size > INT_MAX) {
2037                 return AVERROR(EINVAL);
2038             }
2039
2040             /* if stream_copy is selected, no need to decode or encode */
2041             codec->codec_id = icodec->codec_id;
2042             codec->codec_type = icodec->codec_type;
2043
2044             if(!codec->codec_tag){
2045                 if(   !os->oformat->codec_tag
2046                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2047                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2048                     codec->codec_tag = icodec->codec_tag;
2049             }
2050
2051             codec->bit_rate = icodec->bit_rate;
2052             codec->rc_max_rate    = icodec->rc_max_rate;
2053             codec->rc_buffer_size = icodec->rc_buffer_size;
2054             codec->extradata= av_mallocz(extra_size);
2055             if (!codec->extradata) {
2056                 return AVERROR(ENOMEM);
2057             }
2058             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2059             codec->extradata_size= icodec->extradata_size;
2060
2061             codec->time_base = ist->st->time_base;
2062             if(!strcmp(os->oformat->name, "avi")) {
2063                 if(!copy_tb && 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){
2064                     codec->time_base = icodec->time_base;
2065                     codec->time_base.num *= icodec->ticks_per_frame;
2066                     codec->time_base.den *= 2;
2067                 }
2068             } else if(!(os->oformat->flags & AVFMT_VARIABLE_FPS)) {
2069                 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
2070                     codec->time_base = icodec->time_base;
2071                     codec->time_base.num *= icodec->ticks_per_frame;
2072                 }
2073             }
2074             av_reduce(&codec->time_base.num, &codec->time_base.den,
2075                         codec->time_base.num, codec->time_base.den, INT_MAX);
2076
2077             switch(codec->codec_type) {
2078             case AVMEDIA_TYPE_AUDIO:
2079                 if(audio_volume != 256) {
2080                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2081                     exit_program(1);
2082                 }
2083                 codec->channel_layout = icodec->channel_layout;
2084                 codec->sample_rate = icodec->sample_rate;
2085                 codec->channels = icodec->channels;
2086                 codec->frame_size = icodec->frame_size;
2087                 codec->audio_service_type = icodec->audio_service_type;
2088                 codec->block_align= icodec->block_align;
2089                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2090                     codec->block_align= 0;
2091                 if(codec->codec_id == CODEC_ID_AC3)
2092                     codec->block_align= 0;
2093                 break;
2094             case AVMEDIA_TYPE_VIDEO:
2095                 codec->pix_fmt = icodec->pix_fmt;
2096                 codec->width = icodec->width;
2097                 codec->height = icodec->height;
2098                 codec->has_b_frames = icodec->has_b_frames;
2099                 if (!codec->sample_aspect_ratio.num) {
2100                     codec->sample_aspect_ratio =
2101                     ost->st->sample_aspect_ratio =
2102                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2103                         ist->st->codec->sample_aspect_ratio.num ?
2104                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2105                 }
2106                 break;
2107             case AVMEDIA_TYPE_SUBTITLE:
2108                 codec->width = icodec->width;
2109                 codec->height = icodec->height;
2110                 break;
2111             case AVMEDIA_TYPE_DATA:
2112                 break;
2113             default:
2114                 abort();
2115             }
2116         } else {
2117             if (!ost->enc)
2118                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2119             switch(codec->codec_type) {
2120             case AVMEDIA_TYPE_AUDIO:
2121                 ost->fifo= av_fifo_alloc(1024);
2122                 if (!ost->fifo) {
2123                     return AVERROR(ENOMEM);
2124                 }
2125                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2126                 if (!codec->sample_rate) {
2127                     codec->sample_rate = icodec->sample_rate;
2128                 }
2129                 choose_sample_rate(ost->st, ost->enc);
2130                 codec->time_base = (AVRational){1, codec->sample_rate};
2131                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2132                     codec->sample_fmt = icodec->sample_fmt;
2133                 choose_sample_fmt(ost->st, ost->enc);
2134                 if (!codec->channels) {
2135                     codec->channels = icodec->channels;
2136                     codec->channel_layout = icodec->channel_layout;
2137                 }
2138                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2139                     codec->channel_layout = 0;
2140                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2141                 icodec->request_channels = codec->channels;
2142                 ist->decoding_needed = 1;
2143                 ost->encoding_needed = 1;
2144                 ost->resample_sample_fmt  = icodec->sample_fmt;
2145                 ost->resample_sample_rate = icodec->sample_rate;
2146                 ost->resample_channels    = icodec->channels;
2147                 break;
2148             case AVMEDIA_TYPE_VIDEO:
2149                 if (codec->pix_fmt == PIX_FMT_NONE)
2150                     codec->pix_fmt = icodec->pix_fmt;
2151                 choose_pixel_fmt(ost->st, ost->enc);
2152
2153                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2154                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2155                     exit_program(1);
2156                 }
2157
2158                 if (!codec->width || !codec->height) {
2159                     codec->width  = icodec->width;
2160                     codec->height = icodec->height;
2161                 }
2162
2163                 ost->video_resample = codec->width   != icodec->width  ||
2164                                       codec->height  != icodec->height ||
2165                                       codec->pix_fmt != icodec->pix_fmt;
2166                 if (ost->video_resample) {
2167                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2168                 }
2169
2170                 ost->resample_height = icodec->height;
2171                 ost->resample_width  = icodec->width;
2172                 ost->resample_pix_fmt= icodec->pix_fmt;
2173                 ost->encoding_needed = 1;
2174                 ist->decoding_needed = 1;
2175
2176                 if (!ost->frame_rate.num)
2177                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2178                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2179                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2180                     ost->frame_rate = ost->enc->supported_framerates[idx];
2181                 }
2182                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2183                 if(   av_q2d(codec->time_base) < 0.001 && video_sync_method
2184                    && (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
2185                     av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
2186                                                "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
2187                 }
2188
2189 #if CONFIG_AVFILTER
2190                 if (configure_video_filters(ist, ost)) {
2191                     fprintf(stderr, "Error opening filters!\n");
2192                     exit(1);
2193                 }
2194 #endif
2195                 break;
2196             case AVMEDIA_TYPE_SUBTITLE:
2197                 ost->encoding_needed = 1;
2198                 ist->decoding_needed = 1;
2199                 break;
2200             default:
2201                 abort();
2202                 break;
2203             }
2204             /* two pass mode */
2205             if (ost->encoding_needed && codec->codec_id != CODEC_ID_H264 &&
2206                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2207                 char logfilename[1024];
2208                 FILE *f;
2209
2210                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2211                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2212                          i);
2213                 if (codec->flags & CODEC_FLAG_PASS1) {
2214                     f = fopen(logfilename, "wb");
2215                     if (!f) {
2216                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2217                         exit_program(1);
2218                     }
2219                     ost->logfile = f;
2220                 } else {
2221                     char  *logbuffer;
2222                     size_t logbuffer_size;
2223                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2224                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2225                         exit_program(1);
2226                     }
2227                     codec->stats_in = logbuffer;
2228                 }
2229             }
2230         }
2231         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2232             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2233             int size= codec->width * codec->height;
2234             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2235         }
2236     }
2237
2238     if (!bit_buffer)
2239         bit_buffer = av_malloc(bit_buffer_size);
2240     if (!bit_buffer) {
2241         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2242                 bit_buffer_size);
2243         return AVERROR(ENOMEM);
2244     }
2245
2246     /* open each encoder */
2247     for (i = 0; i < nb_output_streams; i++) {
2248         ost = &output_streams[i];
2249         if (ost->encoding_needed) {
2250             AVCodec *codec = ost->enc;
2251             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2252             if (!codec) {
2253                 snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d.%d",
2254                          avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
2255                 ret = AVERROR(EINVAL);
2256                 goto dump_format;
2257             }
2258             if (dec->subtitle_header) {
2259                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2260                 if (!ost->st->codec->subtitle_header) {
2261                     ret = AVERROR(ENOMEM);
2262                     goto dump_format;
2263                 }
2264                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2265                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2266             }
2267             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2268                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2269                         ost->file_index, ost->index);
2270                 ret = AVERROR(EINVAL);
2271                 goto dump_format;
2272             }
2273             assert_codec_experimental(ost->st->codec, 1);
2274             assert_avoptions(ost->opts);
2275             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2276                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2277                                              "It takes bits/s as argument, not kbits/s\n");
2278             extra_size += ost->st->codec->extradata_size;
2279         }
2280     }
2281
2282     /* init input streams */
2283     for (i = 0; i < nb_input_streams; i++)
2284         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
2285             goto dump_format;
2286
2287     /* open files and write file headers */
2288     for (i = 0; i < nb_output_files; i++) {
2289         os = output_files[i].ctx;
2290         if (avformat_write_header(os, &output_files[i].opts) < 0) {
2291             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2292             ret = AVERROR(EINVAL);
2293             goto dump_format;
2294         }
2295 //        assert_avoptions(output_files[i].opts);
2296         if (strcmp(os->oformat->name, "rtp")) {
2297             want_sdp = 0;
2298         }
2299     }
2300
2301  dump_format:
2302     /* dump the file output parameters - cannot be done before in case
2303        of stream copy */
2304     for(i=0;i<nb_output_files;i++) {
2305         av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
2306     }
2307
2308     /* dump the stream mapping */
2309     if (verbose >= 0) {
2310         fprintf(stderr, "Stream mapping:\n");
2311         for (i = 0; i < nb_output_streams;i ++) {
2312             ost = &output_streams[i];
2313             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2314                     input_streams[ost->source_index].file_index,
2315                     input_streams[ost->source_index].st->index,
2316                     ost->file_index,
2317                     ost->index);
2318             if (ost->sync_ist != &input_streams[ost->source_index])
2319                 fprintf(stderr, " [sync #%d.%d]",
2320                         ost->sync_ist->file_index,
2321                         ost->sync_ist->st->index);
2322             if (ost->st->stream_copy)
2323                 fprintf(stderr, " (copy)");
2324             else
2325                 fprintf(stderr, " (%s -> %s)", input_streams[ost->source_index].dec ?
2326                         input_streams[ost->source_index].dec->name : "?",
2327                         ost->enc ? ost->enc->name : "?");
2328             fprintf(stderr, "\n");
2329         }
2330     }
2331
2332     if (ret) {
2333         fprintf(stderr, "%s\n", error);
2334         return ret;
2335     }
2336
2337     if (want_sdp) {
2338         print_sdp(output_files, nb_output_files);
2339     }
2340
2341     return 0;
2342 }
2343
2344 /*
2345  * The following code is the main loop of the file converter
2346  */
2347 static int transcode(OutputFile *output_files,
2348                      int nb_output_files,
2349                      InputFile *input_files,
2350                      int nb_input_files)
2351 {
2352     int ret, i;
2353     AVFormatContext *is, *os;
2354     OutputStream *ost;
2355     InputStream *ist;
2356     uint8_t *no_packet;
2357     int no_packet_count=0;
2358     int64_t timer_start;
2359     int key;
2360
2361     if (!(no_packet = av_mallocz(nb_input_files)))
2362         exit_program(1);
2363
2364     ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
2365     if (ret < 0)
2366         goto fail;
2367
2368     if (!using_stdin) {
2369         if(verbose >= 0)
2370             fprintf(stderr, "Press [q] to stop, [?] for help\n");
2371         avio_set_interrupt_cb(decode_interrupt_cb);
2372     }
2373     term_init();
2374
2375     timer_start = av_gettime();
2376
2377     for(; received_sigterm == 0;) {
2378         int file_index, ist_index;
2379         AVPacket pkt;
2380         int64_t ipts_min;
2381         double opts_min;
2382
2383         ipts_min= INT64_MAX;
2384         opts_min= 1e100;
2385         /* if 'q' pressed, exits */
2386         if (!using_stdin) {
2387             if (q_pressed)
2388                 break;
2389             /* read_key() returns 0 on EOF */
2390             key = read_key();
2391             if (key == 'q')
2392                 break;
2393             if (key == '+') verbose++;
2394             if (key == '-') verbose--;
2395             if (key == 's') qp_hist     ^= 1;
2396             if (key == 'h'){
2397                 if (do_hex_dump){
2398                     do_hex_dump = do_pkt_dump = 0;
2399                 } else if(do_pkt_dump){
2400                     do_hex_dump = 1;
2401                 } else
2402                     do_pkt_dump = 1;
2403                 av_log_set_level(AV_LOG_DEBUG);
2404             }
2405 #if CONFIG_AVFILTER
2406             if (key == 'c' || key == 'C'){
2407                 char ret[4096], target[64], cmd[256], arg[256]={0};
2408                 double ts;
2409                 int k;
2410                 fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
2411                 i=0;
2412                 while((k=read_key()) !='\n' && k!='\r' && i<sizeof(ret)-1)
2413                     if(k>0) ret[i++]= k;
2414                 ret[i]= 0;
2415                 if(k>0 && sscanf(ret, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &ts, cmd, arg) >= 3){
2416                     for(i=0;i<nb_output_streams;i++) {
2417                         int r;
2418                         ost = &output_streams[i];
2419                         if(ost->graph){
2420                             if(ts<0){
2421                                 r= avfilter_graph_send_command(ost->graph, target, cmd, arg, ret, sizeof(ret), key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
2422                                 fprintf(stderr, "Command reply for %d: %d, %s\n", i, r, ret);
2423                             }else{
2424                                 r= avfilter_graph_queue_command(ost->graph, target, cmd, arg, 0, ts);
2425                             }
2426                         }
2427                     }
2428                 }else{
2429                     fprintf(stderr, "Parse error\n");
2430                 }
2431             }
2432 #endif
2433             if (key == 'd' || key == 'D'){
2434                 int debug=0;
2435                 if(key == 'D') {
2436                     debug = input_streams[0].st->codec->debug<<1;
2437                     if(!debug) debug = 1;
2438                     while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
2439                         debug += debug;
2440                 }else
2441                     scanf("%d", &debug);
2442                 for(i=0;i<nb_input_streams;i++) {
2443                     input_streams[i].st->codec->debug = debug;
2444                 }
2445                 for(i=0;i<nb_output_streams;i++) {
2446                     ost = &output_streams[i];
2447                     ost->st->codec->debug = debug;
2448                 }
2449                 if(debug) av_log_set_level(AV_LOG_DEBUG);
2450                 fprintf(stderr,"debug=%d\n", debug);
2451             }
2452             if (key == '?'){
2453                 fprintf(stderr, "key    function\n"
2454                                 "?      show this help\n"
2455                                 "+      increase verbosity\n"
2456                                 "-      decrease verbosity\n"
2457                                 "c      Send command to filtergraph\n"
2458                                 "D      cycle through available debug modes\n"
2459                                 "h      dump packets/hex press to cycle through the 3 states\n"
2460                                 "q      quit\n"
2461                                 "s      Show QP histogram\n"
2462                 );
2463             }
2464         }
2465
2466         /* select the stream that we must read now by looking at the
2467            smallest output pts */
2468         file_index = -1;
2469         for (i = 0; i < nb_output_streams; i++) {
2470             OutputFile *of;
2471             int64_t ipts;
2472             double  opts;
2473             ost = &output_streams[i];
2474             of = &output_files[ost->file_index];
2475             os = output_files[ost->file_index].ctx;
2476             ist = &input_streams[ost->source_index];
2477             if (ost->is_past_recording_time || no_packet[ist->file_index] ||
2478                 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2479                 continue;
2480             opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2481             ipts = ist->pts;
2482             if (!input_files[ist->file_index].eof_reached){
2483                 if(ipts < ipts_min) {
2484                     ipts_min = ipts;
2485                     if(input_sync ) file_index = ist->file_index;
2486                 }
2487                 if(opts < opts_min) {
2488                     opts_min = opts;
2489                     if(!input_sync) file_index = ist->file_index;
2490                 }
2491             }
2492             if (ost->frame_number >= ost->max_frames) {
2493                 int j;
2494                 for (j = of->ost_index; j < of->ctx->nb_streams; j++)
2495                     output_streams[j].is_past_recording_time = 1;
2496                 continue;
2497             }
2498         }
2499         /* if none, if is finished */
2500         if (file_index < 0) {
2501             if(no_packet_count){
2502                 no_packet_count=0;
2503                 memset(no_packet, 0, nb_input_files);
2504                 usleep(10000);
2505                 continue;
2506             }
2507             break;
2508         }
2509
2510         /* read a frame from it and output it in the fifo */
2511         is = input_files[file_index].ctx;
2512         ret= av_read_frame(is, &pkt);
2513         if(ret == AVERROR(EAGAIN)){
2514             no_packet[file_index]=1;
2515             no_packet_count++;
2516             continue;
2517         }
2518         if (ret < 0) {
2519             input_files[file_index].eof_reached = 1;
2520             if (opt_shortest)
2521                 break;
2522             else
2523                 continue;
2524         }
2525
2526         no_packet_count=0;
2527         memset(no_packet, 0, nb_input_files);
2528
2529         if (do_pkt_dump) {
2530             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2531                              is->streams[pkt.stream_index]);
2532         }
2533         /* the following test is needed in case new streams appear
2534            dynamically in stream : we ignore them */
2535         if (pkt.stream_index >= input_files[file_index].nb_streams)
2536             goto discard_packet;
2537         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2538         ist = &input_streams[ist_index];
2539         if (ist->discard)
2540             goto discard_packet;
2541
2542         if (pkt.dts != AV_NOPTS_VALUE)
2543             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2544         if (pkt.pts != AV_NOPTS_VALUE)
2545             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2546
2547         if(pkt.pts != AV_NOPTS_VALUE)
2548             pkt.pts *= ist->ts_scale;
2549         if(pkt.dts != AV_NOPTS_VALUE)
2550             pkt.dts *= ist->ts_scale;
2551
2552 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2553         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2554             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2555             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2556             int64_t delta= pkt_dts - ist->next_pts;
2557             if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
2558                 (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
2559                  ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
2560                 pkt_dts+1<ist->pts)&& !copy_ts){
2561                 input_files[ist->file_index].ts_offset -= delta;
2562                 if (verbose > 2)
2563                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2564                             delta, input_files[ist->file_index].ts_offset);
2565                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2566                 if(pkt.pts != AV_NOPTS_VALUE)
2567                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2568             }
2569         }
2570
2571         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2572         if (output_packet(ist, ist_index, output_streams, nb_output_streams, &pkt) < 0) {
2573
2574             if (verbose >= 0)
2575                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2576                         ist->file_index, ist->st->index);
2577             if (exit_on_error)
2578                 exit_program(1);
2579             av_free_packet(&pkt);
2580             continue;
2581         }
2582
2583     discard_packet:
2584         av_free_packet(&pkt);
2585
2586         /* dump report by using the output first video and audio streams */
2587         print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
2588     }
2589
2590     /* at the end of stream, we must flush the decoder buffers */
2591     for (i = 0; i < nb_input_streams; i++) {
2592         ist = &input_streams[i];
2593         if (ist->decoding_needed) {
2594             output_packet(ist, i, output_streams, nb_output_streams, NULL);
2595         }
2596     }
2597     flush_encoders(output_streams, nb_output_streams);
2598
2599     term_exit();
2600
2601     /* write the trailer if needed and close file */
2602     for(i=0;i<nb_output_files;i++) {
2603         os = output_files[i].ctx;
2604         av_write_trailer(os);
2605     }
2606
2607     /* dump report by using the first video and audio streams */
2608     print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
2609
2610     /* close each encoder */
2611     for (i = 0; i < nb_output_streams; i++) {
2612         ost = &output_streams[i];
2613         if (ost->encoding_needed) {
2614             av_freep(&ost->st->codec->stats_in);
2615             avcodec_close(ost->st->codec);
2616         }
2617 #if CONFIG_AVFILTER
2618         avfilter_graph_free(&ost->graph);
2619 #endif
2620     }
2621
2622     /* close each decoder */
2623     for (i = 0; i < nb_input_streams; i++) {
2624         ist = &input_streams[i];
2625         if (ist->decoding_needed) {
2626             avcodec_close(ist->st->codec);
2627         }
2628     }
2629
2630     /* finished ! */
2631     ret = 0;
2632
2633  fail:
2634     av_freep(&bit_buffer);
2635     av_freep(&no_packet);
2636
2637     if (output_streams) {
2638         for (i = 0; i < nb_output_streams; i++) {
2639             ost = &output_streams[i];
2640             if (ost) {
2641                 if (ost->st->stream_copy)
2642                     av_freep(&ost->st->codec->extradata);
2643                 if (ost->logfile) {
2644                     fclose(ost->logfile);
2645                     ost->logfile = NULL;
2646                 }
2647                 av_fifo_free(ost->fifo); /* works even if fifo is not
2648                                              initialized but set to zero */
2649                 av_freep(&ost->st->codec->subtitle_header);
2650                 av_free(ost->resample_frame.data[0]);
2651                 av_free(ost->forced_kf_pts);
2652                 if (ost->video_resample)
2653                     sws_freeContext(ost->img_resample_ctx);
2654                 if (ost->resample)
2655                     audio_resample_close(ost->resample);
2656                 if (ost->reformat_ctx)
2657                     av_audio_convert_free(ost->reformat_ctx);
2658                 av_dict_free(&ost->opts);
2659             }
2660         }
2661     }
2662     return ret;
2663 }
2664
2665 static int opt_video_rc_override_string(const char *opt, const char *arg)
2666 {
2667     video_rc_override_string = arg;
2668     return 0;
2669 }
2670
2671 static int opt_me_threshold(const char *opt, const char *arg)
2672 {
2673     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2674     return 0;
2675 }
2676
2677 static int opt_verbose(const char *opt, const char *arg)
2678 {
2679     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2680     return 0;
2681 }
2682
2683 static int opt_frame_rate(const char *opt, const char *arg)
2684 {
2685     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2686         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2687         exit_program(1);
2688     }
2689     return 0;
2690 }
2691
2692 static int opt_frame_crop(const char *opt, const char *arg)
2693 {
2694     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2695     return AVERROR(EINVAL);
2696 }
2697
2698 static int opt_frame_size(const char *opt, const char *arg)
2699 {
2700     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2701         fprintf(stderr, "Incorrect frame size\n");
2702         return AVERROR(EINVAL);
2703     }
2704     return 0;
2705 }
2706
2707 static int opt_pad(const char *opt, const char *arg) {
2708     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2709     return -1;
2710 }
2711
2712 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2713 {
2714     if (strcmp(arg, "list")) {
2715         frame_pix_fmt = av_get_pix_fmt(arg);
2716         if (frame_pix_fmt == PIX_FMT_NONE) {
2717             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2718             return AVERROR(EINVAL);
2719         }
2720     } else {
2721         opt_pix_fmts(NULL, NULL);
2722         exit_program(0);
2723     }
2724     return 0;
2725 }
2726
2727 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2728 {
2729     int x = 0, y = 0;
2730     double ar = 0;
2731     const char *p;
2732     char *end;
2733
2734     p = strchr(arg, ':');
2735     if (p) {
2736         x = strtol(arg, &end, 10);
2737         if (end == p)
2738             y = strtol(end+1, &end, 10);
2739         if (x > 0 && y > 0)
2740             ar = (double)x / (double)y;
2741     } else
2742         ar = strtod(arg, NULL);
2743
2744     if (!ar) {
2745         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2746         return AVERROR(EINVAL);
2747     }
2748     frame_aspect_ratio = ar;
2749     return 0;
2750 }
2751
2752 static int opt_qscale(const char *opt, const char *arg)
2753 {
2754     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2755     if (video_qscale <= 0 || video_qscale > 255) {
2756         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2757         return AVERROR(EINVAL);
2758     }
2759     return 0;
2760 }
2761
2762 static int opt_top_field_first(const char *opt, const char *arg)
2763 {
2764     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2765     return opt_default(opt, arg);
2766 }
2767
2768 static int opt_thread_count(const char *opt, const char *arg)
2769 {
2770     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2771 #if !HAVE_THREADS
2772     if (verbose >= 0)
2773         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2774 #endif
2775     return 0;
2776 }
2777
2778 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2779 {
2780     if (strcmp(arg, "list")) {
2781         audio_sample_fmt = av_get_sample_fmt(arg);
2782         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2783             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2784             return AVERROR(EINVAL);
2785         }
2786     } else {
2787         int i;
2788         char fmt_str[128];
2789         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2790             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2791         exit_program(0);
2792     }
2793     return 0;
2794 }
2795
2796 static int opt_audio_rate(const char *opt, const char *arg)
2797 {
2798     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2799     return 0;
2800 }
2801
2802 static int opt_video_channel(const char *opt, const char *arg)
2803 {
2804     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2805     return opt_default("channel", arg);
2806 }
2807
2808 static int opt_video_standard(const char *opt, const char *arg)
2809 {
2810     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2811     return opt_default("standard", arg);
2812 }
2813
2814 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
2815 {
2816     audio_codec_name = arg;
2817     return parse_option(o, "codec:a", arg, options);
2818 }
2819
2820 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
2821 {
2822     video_codec_name = arg;
2823     return parse_option(o, "codec:v", arg, options);
2824 }
2825
2826 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
2827 {
2828     subtitle_codec_name = arg;
2829     return parse_option(o, "codec:s", arg, options);
2830 }
2831
2832 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
2833 {
2834     return parse_option(o, "codec:d", arg, options);
2835 }
2836
2837 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
2838 {
2839     StreamMap *m = NULL;
2840     int i, negative = 0, file_idx;
2841     int sync_file_idx = -1, sync_stream_idx;
2842     char *p, *sync;
2843     char *map;
2844
2845     if (*arg == '-') {
2846         negative = 1;
2847         arg++;
2848     }
2849     map = av_strdup(arg);
2850
2851     /* parse sync stream first, just pick first matching stream */
2852     if (sync = strchr(map, ',')) {
2853         *sync = 0;
2854         sync_file_idx = strtol(sync + 1, &sync, 0);
2855         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2856             av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2857             exit_program(1);
2858         }
2859         if (*sync)
2860             sync++;
2861         for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
2862             if (check_stream_specifier(input_files[sync_file_idx].ctx,
2863                                        input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2864                 sync_stream_idx = i;
2865                 break;
2866             }
2867         if (i == input_files[sync_file_idx].nb_streams) {
2868             av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2869                                        "match any streams.\n", arg);
2870             exit_program(1);
2871         }
2872     }
2873
2874
2875     file_idx = strtol(map, &p, 0);
2876     if (file_idx >= nb_input_files || file_idx < 0) {
2877         av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2878         exit_program(1);
2879     }
2880     if (negative)
2881         /* disable some already defined maps */
2882         for (i = 0; i < o->nb_stream_maps; i++) {
2883             m = &o->stream_maps[i];
2884             if (check_stream_specifier(input_files[m->file_index].ctx,
2885                                        input_files[m->file_index].ctx->streams[m->stream_index],
2886                                        *p == ':' ? p + 1 : p) > 0)
2887                 m->disabled = 1;
2888         }
2889     else
2890         for (i = 0; i < input_files[file_idx].nb_streams; i++) {
2891             if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2892                         *p == ':' ? p + 1 : p) <= 0)
2893                 continue;
2894             o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
2895                                         &o->nb_stream_maps, o->nb_stream_maps + 1);
2896             m = &o->stream_maps[o->nb_stream_maps - 1];
2897
2898             m->file_index   = file_idx;
2899             m->stream_index = i;
2900
2901             if (sync_file_idx >= 0) {
2902                 m->sync_file_index   = sync_file_idx;
2903                 m->sync_stream_index = sync_stream_idx;
2904             } else {
2905                 m->sync_file_index   = file_idx;
2906                 m->sync_stream_index = i;
2907             }
2908         }
2909
2910     if (!m) {
2911         av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2912         exit_program(1);
2913     }
2914
2915     av_freep(&map);
2916     return 0;
2917 }
2918
2919 static void parse_meta_type(char *arg, char *type, int *index)
2920 {
2921     if (*arg) {
2922         *type = *arg;
2923         switch (*arg) {
2924         case 'g':
2925             break;
2926         case 's':
2927         case 'c':
2928         case 'p':
2929             if (*(++arg) == ':')
2930                 *index = strtol(++arg, NULL, 0);
2931             break;
2932         default:
2933             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2934             exit_program(1);
2935         }
2936     } else
2937         *type = 'g';
2938 }
2939
2940 static int opt_map_metadata(OptionsContext *o, const char *opt, const char *arg)
2941 {
2942     MetadataMap *m, *m1;
2943     char *p;
2944
2945     o->meta_data_maps = grow_array(o->meta_data_maps, sizeof(*o->meta_data_maps),
2946                                    &o->nb_meta_data_maps, o->nb_meta_data_maps + 1);
2947
2948     m = &o->meta_data_maps[o->nb_meta_data_maps - 1][1];
2949     m->file = strtol(arg, &p, 0);
2950     parse_meta_type(*p ? p + 1 : p, &m->type, &m->index);
2951
2952     m1 = &o->meta_data_maps[o->nb_meta_data_maps - 1][0];
2953     if (p = strchr(opt, ':'))
2954         parse_meta_type(p + 1, &m1->type, &m1->index);
2955     else
2956         m1->type = 'g';
2957
2958     if (m->type == 'g' || m1->type == 'g')
2959         o->metadata_global_manual = 1;
2960     if (m->type == 's' || m1->type == 's')
2961         o->metadata_streams_manual = 1;
2962     if (m->type == 'c' || m1->type == 'c')
2963         o->metadata_chapters_manual = 1;
2964
2965     return 0;
2966 }
2967
2968 static int opt_map_meta_data(OptionsContext *o, const char *opt, const char *arg)
2969 {
2970     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
2971                     "Use -map_metadata instead.\n");
2972     return opt_map_metadata(o, opt, arg);
2973 }
2974
2975 static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
2976 {
2977     char buf[128];
2978     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
2979     struct tm time = *gmtime((time_t*)&recording_timestamp);
2980     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
2981     parse_option(o, "metadata", buf, options);
2982
2983     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
2984                                  "tag instead.\n", opt);
2985     return 0;
2986 }
2987
2988 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2989 {
2990     const char *codec_string = encoder ? "encoder" : "decoder";
2991     AVCodec *codec;
2992
2993     if(!name)
2994         return CODEC_ID_NONE;
2995     codec = encoder ?
2996         avcodec_find_encoder_by_name(name) :
2997         avcodec_find_decoder_by_name(name);
2998     if(!codec) {
2999         av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
3000         exit_program(1);
3001     }
3002     if(codec->type != type) {
3003         av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
3004         exit_program(1);
3005     }
3006     return codec->id;
3007 }
3008
3009 static AVCodec *choose_codec(OptionsContext *o, AVFormatContext *s, AVStream *st, enum AVMediaType type)
3010 {
3011     char *codec_name = NULL;
3012
3013     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
3014
3015     if (!codec_name) {
3016         if (s->oformat) {
3017             st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
3018             return avcodec_find_encoder(st->codec->codec_id);
3019         }
3020     } else if (!strcmp(codec_name, "copy"))
3021         st->stream_copy = 1;
3022     else {
3023         st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
3024         return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
3025                             avcodec_find_decoder_by_name(codec_name);
3026     }
3027
3028     return NULL;
3029 }
3030
3031 /**
3032  * Add all the streams from the given input file to the global
3033  * list of input streams.
3034  */
3035 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
3036 {
3037     int i, rfps, rfps_base;
3038
3039     for (i = 0; i < ic->nb_streams; i++) {
3040         AVStream *st = ic->streams[i];
3041         AVCodecContext *dec = st->codec;
3042         InputStream *ist;
3043         double scale = 1.0;
3044
3045         dec->thread_count = thread_count;
3046
3047         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3048         ist = &input_streams[nb_input_streams - 1];
3049         ist->st = st;
3050         ist->file_index = nb_input_files;
3051         ist->discard = 1;
3052         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3053
3054         MATCH_PER_STREAM_OPT(ts_scale, dbl, scale, ic, st);
3055         ist->ts_scale = scale;
3056
3057         ist->dec = choose_codec(o, ic, st, dec->codec_type);
3058         if (!ist->dec)
3059             ist->dec = avcodec_find_decoder(dec->codec_id);
3060
3061         switch (dec->codec_type) {
3062         case AVMEDIA_TYPE_AUDIO:
3063             if(!ist->dec)
3064                 ist->dec = avcodec_find_decoder(dec->codec_id);
3065             if(o->audio_disable)
3066                 st->discard= AVDISCARD_ALL;
3067             break;
3068         case AVMEDIA_TYPE_VIDEO:
3069             if(!ist->dec)
3070                 ist->dec = avcodec_find_decoder(dec->codec_id);
3071             rfps      = ic->streams[i]->r_frame_rate.num;
3072             rfps_base = ic->streams[i]->r_frame_rate.den;
3073             if (dec->lowres) {
3074                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3075             }
3076             if(me_threshold)
3077                 dec->debug |= FF_DEBUG_MV;
3078
3079             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3080
3081                 if (verbose >= 0)
3082                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3083                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3084
3085                     (float)rfps / rfps_base, rfps, rfps_base);
3086             }
3087
3088             if (o->video_disable)
3089                 st->discard= AVDISCARD_ALL;
3090             else if(video_discard)
3091                 st->discard= video_discard;
3092             break;
3093         case AVMEDIA_TYPE_DATA:
3094             break;
3095         case AVMEDIA_TYPE_SUBTITLE:
3096             if(!ist->dec)
3097                 ist->dec = avcodec_find_decoder(dec->codec_id);
3098             if(o->subtitle_disable)
3099                 st->discard = AVDISCARD_ALL;
3100             break;
3101         case AVMEDIA_TYPE_ATTACHMENT:
3102         case AVMEDIA_TYPE_UNKNOWN:
3103             break;
3104         default:
3105             abort();
3106         }
3107     }
3108 }
3109
3110 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
3111 {
3112     AVFormatContext *ic;
3113     AVInputFormat *file_iformat = NULL;
3114     int err, i, ret;
3115     int64_t timestamp;
3116     uint8_t buf[128];
3117     AVDictionary **opts;
3118     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3119
3120     if (o->format) {
3121         if (!(file_iformat = av_find_input_format(o->format))) {
3122             fprintf(stderr, "Unknown input format: '%s'\n", o->format);
3123             exit_program(1);
3124         }
3125     }
3126
3127     if (!strcmp(filename, "-"))
3128         filename = "pipe:";
3129
3130     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3131                     !strcmp(filename, "/dev/stdin");
3132
3133     /* get default parameters from command line */
3134     ic = avformat_alloc_context();
3135     if (!ic) {
3136         print_error(filename, AVERROR(ENOMEM));
3137         exit_program(1);
3138     }
3139     if (audio_sample_rate) {
3140         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3141         av_dict_set(&format_opts, "sample_rate", buf, 0);
3142     }
3143     if (o->nb_audio_channels) {
3144         snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
3145         av_dict_set(&format_opts, "channels", buf, 0);
3146     }
3147     if (frame_rate.num) {
3148         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3149         av_dict_set(&format_opts, "framerate", buf, 0);
3150     }
3151     if (frame_width && frame_height) {
3152         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3153         av_dict_set(&format_opts, "video_size", buf, 0);
3154     }
3155     if (frame_pix_fmt != PIX_FMT_NONE)
3156         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3157
3158     ic->flags |= AVFMT_FLAG_NONBLOCK;
3159
3160     if (loop_input) {
3161         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3162         ic->loop_input = loop_input;
3163     }
3164
3165     /* open the input file with generic libav function */
3166     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3167     if (err < 0) {
3168         print_error(filename, err);
3169         exit_program(1);
3170     }
3171     assert_avoptions(format_opts);
3172
3173     if(opt_programid) {
3174         int i, j;
3175         int found=0;
3176         for(i=0; i<ic->nb_streams; i++){
3177             ic->streams[i]->discard= AVDISCARD_ALL;
3178         }
3179         for(i=0; i<ic->nb_programs; i++){
3180             AVProgram *p= ic->programs[i];
3181             if(p->id != opt_programid){
3182                 p->discard = AVDISCARD_ALL;
3183             }else{
3184                 found=1;
3185                 for(j=0; j<p->nb_stream_indexes; j++){
3186                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3187                 }
3188             }
3189         }
3190         if(!found){
3191             fprintf(stderr, "Specified program id not found\n");
3192             exit_program(1);
3193         }
3194         opt_programid=0;
3195     }
3196
3197     /* apply forced codec ids */
3198     for (i = 0; i < ic->nb_streams; i++)
3199         choose_codec(o, ic, ic->streams[i], ic->streams[i]->codec->codec_type);
3200
3201     /* Set AVCodecContext options for avformat_find_stream_info */
3202     opts = setup_find_stream_info_opts(ic, codec_opts);
3203     orig_nb_streams = ic->nb_streams;
3204
3205     /* If not enough info to get the stream parameters, we decode the
3206        first frames to get it. (used in mpeg case for example) */
3207     ret = avformat_find_stream_info(ic, opts);
3208     if (ret < 0 && verbose >= 0) {
3209         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3210         av_close_input_file(ic);
3211         exit_program(1);
3212     }
3213
3214     timestamp = o->start_time;
3215     /* add the stream start time */
3216     if (ic->start_time != AV_NOPTS_VALUE)
3217         timestamp += ic->start_time;
3218
3219     /* if seeking requested, we execute it */
3220     if (o->start_time != 0) {
3221         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3222         if (ret < 0) {
3223             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3224                     filename, (double)timestamp / AV_TIME_BASE);
3225         }
3226     }
3227
3228     /* update the current parameters so that they match the one of the input stream */
3229     add_input_streams(o, ic);
3230
3231     /* dump the file content */
3232     if (verbose >= 0)
3233         av_dump_format(ic, nb_input_files, filename, 0);
3234
3235     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3236     input_files[nb_input_files - 1].ctx        = ic;
3237     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3238     input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
3239     input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
3240     input_files[nb_input_files - 1].rate_emu   = o->rate_emu;
3241
3242     top_field_first = -1;
3243     frame_rate    = (AVRational){0, 0};
3244     frame_pix_fmt = PIX_FMT_NONE;
3245     frame_height = 0;
3246     frame_width  = 0;
3247     audio_sample_rate = 0;
3248     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3249
3250     for (i = 0; i < orig_nb_streams; i++)
3251         av_dict_free(&opts[i]);
3252     av_freep(&opts);
3253
3254     reset_options(o, 1);
3255     return 0;
3256 }
3257
3258 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3259                                     AVCodecContext *avctx)
3260 {
3261     char *p;
3262     int n = 1, i;
3263     int64_t t;
3264
3265     for (p = kf; *p; p++)
3266         if (*p == ',')
3267             n++;
3268     ost->forced_kf_count = n;
3269     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3270     if (!ost->forced_kf_pts) {
3271         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3272         exit_program(1);
3273     }
3274     for (i = 0; i < n; i++) {
3275         p = i ? strchr(p, ',') + 1 : kf;
3276         t = parse_time_or_die("force_key_frames", p, 1);
3277         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3278     }
3279 }
3280
3281 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
3282 {
3283     OutputStream *ost;
3284     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3285     int idx      = oc->nb_streams - 1;
3286     int64_t max_frames = INT64_MAX;
3287     char *bsf = NULL, *next, *codec_tag = NULL;
3288     AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
3289
3290     if (!st) {
3291         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3292         exit_program(1);
3293     }
3294
3295     output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
3296                                 nb_output_streams + 1);
3297     ost = &output_streams[nb_output_streams - 1];
3298     ost->file_index = nb_output_files;
3299     ost->index = idx;
3300     ost->st    = st;
3301     st->codec->codec_type = type;
3302     ost->enc = choose_codec(o, oc, st, type);
3303     if (ost->enc) {
3304         ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3305     }
3306
3307     avcodec_get_context_defaults3(st->codec, ost->enc);
3308     st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3309
3310     MATCH_PER_STREAM_OPT(max_frames, i64, max_frames, oc, st);
3311     ost->max_frames = max_frames;
3312
3313     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
3314     while (bsf) {
3315         if (next = strchr(bsf, ','))
3316             *next++ = 0;
3317         if (!(bsfc = av_bitstream_filter_init(bsf))) {
3318             av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter %s\n", bsf);
3319             exit_program(1);
3320         }
3321         if (bsfc_prev)
3322             bsfc_prev->next = bsfc;
3323         else
3324             ost->bitstream_filters = bsfc;
3325
3326         bsfc_prev = bsfc;
3327         bsf       = next;
3328     }
3329
3330     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
3331     if (codec_tag) {
3332         uint32_t tag = strtol(codec_tag, &next, 0);
3333         if (*next)
3334             tag = AV_RL32(codec_tag);
3335         st->codec->codec_tag = tag;
3336     }
3337
3338     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3339     return ost;
3340 }
3341
3342 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
3343 {
3344     AVStream *st;
3345     OutputStream *ost;
3346     AVCodecContext *video_enc;
3347
3348     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
3349     st  = ost->st;
3350     if (!st->stream_copy) {
3351         ost->frame_aspect_ratio = frame_aspect_ratio;
3352         frame_aspect_ratio = 0;
3353 #if CONFIG_AVFILTER
3354         ost->avfilter = vfilters;
3355         vfilters = NULL;
3356 #endif
3357     }
3358
3359     st->codec->thread_count= thread_count;
3360
3361     video_enc = st->codec;
3362
3363     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3364         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3365     }
3366
3367     if (st->stream_copy) {
3368         video_enc->sample_aspect_ratio =
3369         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3370     } else {
3371         const char *p;
3372         int i;
3373
3374         if (frame_rate.num)
3375             ost->frame_rate = frame_rate;
3376
3377         video_enc->width = frame_width;
3378         video_enc->height = frame_height;
3379         video_enc->pix_fmt = frame_pix_fmt;
3380         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3381         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3382
3383         if (intra_only)
3384             video_enc->gop_size = 0;
3385         if (video_qscale || same_quant) {
3386             video_enc->flags |= CODEC_FLAG_QSCALE;
3387             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3388         }
3389
3390         if(intra_matrix)
3391             video_enc->intra_matrix = intra_matrix;
3392         if(inter_matrix)
3393             video_enc->inter_matrix = inter_matrix;
3394
3395         p= video_rc_override_string;
3396         for(i=0; p; i++){
3397             int start, end, q;
3398             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3399             if(e!=3){
3400                 fprintf(stderr, "error parsing rc_override\n");
3401                 exit_program(1);
3402             }
3403             video_enc->rc_override=
3404                 av_realloc(video_enc->rc_override,
3405                            sizeof(RcOverride)*(i+1));
3406             video_enc->rc_override[i].start_frame= start;
3407             video_enc->rc_override[i].end_frame  = end;
3408             if(q>0){
3409                 video_enc->rc_override[i].qscale= q;
3410                 video_enc->rc_override[i].quality_factor= 1.0;
3411             }
3412             else{
3413                 video_enc->rc_override[i].qscale= 0;
3414                 video_enc->rc_override[i].quality_factor= -q/100.0;
3415             }
3416             p= strchr(p, '/');
3417             if(p) p++;
3418         }
3419         video_enc->rc_override_count=i;
3420         if (!video_enc->rc_initial_buffer_occupancy)
3421             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3422         video_enc->me_threshold= me_threshold;
3423         video_enc->intra_dc_precision= intra_dc_precision - 8;
3424
3425         if (do_psnr)
3426             video_enc->flags|= CODEC_FLAG_PSNR;
3427
3428         /* two pass mode */
3429         if (do_pass) {
3430             if (do_pass == 1) {
3431                 video_enc->flags |= CODEC_FLAG_PASS1;
3432             } else {
3433                 video_enc->flags |= CODEC_FLAG_PASS2;
3434             }
3435         }
3436
3437         if (forced_key_frames)
3438             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3439     }
3440
3441     /* reset some key parameters */
3442     av_freep(&forced_key_frames);
3443     frame_pix_fmt = PIX_FMT_NONE;
3444     return ost;
3445 }
3446
3447 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
3448 {
3449     AVStream *st;
3450     OutputStream *ost;
3451     AVCodecContext *audio_enc;
3452
3453     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
3454     st  = ost->st;
3455
3456     st->codec->thread_count= thread_count;
3457
3458     audio_enc = st->codec;
3459     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3460
3461     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3462         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3463     }
3464     if (!st->stream_copy) {
3465         if (audio_qscale > QSCALE_NONE) {
3466             audio_enc->flags |= CODEC_FLAG_QSCALE;
3467             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3468         }
3469         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
3470
3471         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3472             audio_enc->sample_fmt = audio_sample_fmt;
3473         if (audio_sample_rate)
3474             audio_enc->sample_rate = audio_sample_rate;
3475     }
3476
3477     return ost;
3478 }
3479
3480 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
3481 {
3482     AVStream *st;
3483     OutputStream *ost;
3484     AVCodecContext *data_enc;
3485
3486     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
3487     st  = ost->st;
3488     data_enc = st->codec;
3489     if (!st->stream_copy) {
3490         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3491         exit_program(1);
3492     }
3493
3494     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3495         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3496     }
3497
3498     return ost;
3499 }
3500
3501 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
3502 {
3503     AVStream *st;
3504     OutputStream *ost;
3505     AVCodecContext *subtitle_enc;
3506
3507     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
3508     st  = ost->st;
3509     subtitle_enc = st->codec;
3510
3511     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3512
3513     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3514         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3515     }
3516
3517     return ost;
3518 }
3519
3520 /* arg format is "output-stream-index:streamid-value". */
3521 static int opt_streamid(const char *opt, const char *arg)
3522 {
3523     int idx;
3524     char *p;
3525     char idx_str[16];
3526
3527     av_strlcpy(idx_str, arg, sizeof(idx_str));
3528     p = strchr(idx_str, ':');
3529     if (!p) {
3530         fprintf(stderr,
3531                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3532                 arg, opt);
3533         exit_program(1);
3534     }
3535     *p++ = '\0';
3536     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3537     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3538     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3539     return 0;
3540 }
3541
3542 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
3543 {
3544     AVFormatContext *is = ifile->ctx;
3545     AVFormatContext *os = ofile->ctx;
3546     int i;
3547
3548     for (i = 0; i < is->nb_chapters; i++) {
3549         AVChapter *in_ch = is->chapters[i], *out_ch;
3550         int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
3551                                       AV_TIME_BASE_Q, in_ch->time_base);
3552         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
3553                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3554
3555
3556         if (in_ch->end < ts_off)
3557             continue;
3558         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3559             break;
3560
3561         out_ch = av_mallocz(sizeof(AVChapter));
3562         if (!out_ch)
3563             return AVERROR(ENOMEM);
3564
3565         out_ch->id        = in_ch->id;
3566         out_ch->time_base = in_ch->time_base;
3567         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
3568         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
3569
3570         if (copy_metadata)
3571             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3572
3573         os->nb_chapters++;
3574         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3575         if (!os->chapters)
3576             return AVERROR(ENOMEM);
3577         os->chapters[os->nb_chapters - 1] = out_ch;
3578     }
3579     return 0;
3580 }
3581
3582 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
3583 {
3584     int i, err;
3585     AVFormatContext *ic = NULL;
3586
3587     err = avformat_open_input(&ic, filename, NULL, NULL);
3588     if (err < 0)
3589         return err;
3590     /* copy stream format */
3591     for(i=0;i<ic->nb_streams;i++) {
3592         AVStream *st;
3593         OutputStream *ost;
3594         AVCodec *codec;
3595
3596         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3597         ost   = new_output_stream(o, s, codec->type);
3598         st    = ost->st;
3599
3600         // FIXME: a more elegant solution is needed
3601         memcpy(st, ic->streams[i], sizeof(AVStream));
3602         st->info = av_malloc(sizeof(*st->info));
3603         memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
3604         avcodec_copy_context(st->codec, ic->streams[i]->codec);
3605
3606         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3607             choose_sample_fmt(st, codec);
3608         else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3609             choose_pixel_fmt(st, codec);
3610     }
3611
3612     av_close_input_file(ic);
3613     return 0;
3614 }
3615
3616 static void opt_output_file(void *optctx, const char *filename)
3617 {
3618     OptionsContext *o = optctx;
3619     AVFormatContext *oc;
3620     int i, err;
3621     AVOutputFormat *file_oformat;
3622     OutputStream *ost;
3623     InputStream  *ist;
3624
3625     if (!strcmp(filename, "-"))
3626         filename = "pipe:";
3627
3628     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
3629     if (!oc) {
3630         print_error(filename, err);
3631         exit_program(1);
3632     }
3633     file_oformat= oc->oformat;
3634
3635     if (!strcmp(file_oformat->name, "ffm") &&
3636         av_strstart(filename, "http:", NULL)) {
3637         /* special case for files sent to ffserver: we get the stream
3638            parameters from ffserver */
3639         int err = read_ffserver_streams(o, oc, filename);
3640         if (err < 0) {
3641             print_error(filename, err);
3642             exit_program(1);
3643         }
3644     } else if (!o->nb_stream_maps) {
3645         /* pick the "best" stream of each type */
3646 #define NEW_STREAM(type, index)\
3647         if (index >= 0) {\
3648             ost = new_ ## type ## _stream(o, oc);\
3649             ost->source_index = index;\
3650             ost->sync_ist     = &input_streams[index];\
3651             input_streams[index].discard = 0;\
3652         }
3653
3654         /* video: highest resolution */
3655         if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3656             int area = 0, idx = -1;
3657             for (i = 0; i < nb_input_streams; i++) {
3658                 ist = &input_streams[i];
3659                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3660                     ist->st->codec->width * ist->st->codec->height > area) {
3661                     area = ist->st->codec->width * ist->st->codec->height;
3662                     idx = i;