Merge remote branch 'qatar/master'
[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 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #include "libavformat/ffm.h" // not public API
51
52 #if CONFIG_AVFILTER
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/avfiltergraph.h"
55 # include "libavfilter/vsrc_buffer.h"
56 #endif
57
58 #if HAVE_SYS_RESOURCE_H
59 #include <sys/types.h>
60 #include <sys/time.h>
61 #include <sys/resource.h>
62 #elif HAVE_GETPROCESSTIMES
63 #include <windows.h>
64 #endif
65 #if HAVE_GETPROCESSMEMORYINFO
66 #include <windows.h>
67 #include <psapi.h>
68 #endif
69
70 #if HAVE_SYS_SELECT_H
71 #include <sys/select.h>
72 #endif
73
74 #if HAVE_TERMIOS_H
75 #include <fcntl.h>
76 #include <sys/ioctl.h>
77 #include <sys/time.h>
78 #include <termios.h>
79 #elif HAVE_KBHIT
80 #include <conio.h>
81 #endif
82 #include <time.h>
83
84 #include "cmdutils.h"
85
86 #include "libavutil/avassert.h"
87
88 const char program_name[] = "FFmpeg";
89 const int program_birth_year = 2000;
90
91 /* select an input stream for an output stream */
92 typedef struct AVStreamMap {
93     int file_index;
94     int stream_index;
95     int sync_file_index;
96     int sync_stream_index;
97 } AVStreamMap;
98
99 /**
100  * select an input file for an output file
101  */
102 typedef struct AVMetaDataMap {
103     int  file;      //< file index
104     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
105     int  index;     //< stream/chapter/program number
106 } AVMetaDataMap;
107
108 typedef struct AVChapterMap {
109     int in_file;
110     int out_file;
111 } AVChapterMap;
112
113 static const OptionDef options[];
114
115 #define MAX_FILES 100
116 #if !FF_API_MAX_STREAMS
117 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
118 #endif
119
120 static const char *last_asked_format = NULL;
121 static AVFormatContext *input_files[MAX_FILES];
122 static int64_t input_files_ts_offset[MAX_FILES];
123 static double *input_files_ts_scale[MAX_FILES] = {NULL};
124 static AVCodec **input_codecs = NULL;
125 static int nb_input_files = 0;
126 static int nb_input_codecs = 0;
127 static int nb_input_files_ts_scale[MAX_FILES] = {0};
128
129 static AVFormatContext *output_files[MAX_FILES];
130 static AVCodec **output_codecs = NULL;
131 static int nb_output_files = 0;
132 static int nb_output_codecs = 0;
133
134 static AVStreamMap *stream_maps = NULL;
135 static int nb_stream_maps;
136
137 /* first item specifies output metadata, second is input */
138 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
139 static int nb_meta_data_maps;
140 static int metadata_global_autocopy   = 1;
141 static int metadata_streams_autocopy  = 1;
142 static int metadata_chapters_autocopy = 1;
143
144 static AVChapterMap *chapter_maps = NULL;
145 static int nb_chapter_maps;
146
147 /* indexed by output file stream index */
148 static int *streamid_map = NULL;
149 static int nb_streamid_map = 0;
150
151 static int frame_width  = 0;
152 static int frame_height = 0;
153 static float frame_aspect_ratio = 0;
154 static int frame_aspect_ratio_override = 0;
155 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
156 static int frame_bits_per_raw_sample = 0;
157 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
158 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
159 static AVRational frame_rate;
160 static float video_qscale = 0;
161 static uint16_t *intra_matrix = NULL;
162 static uint16_t *inter_matrix = NULL;
163 static const char *video_rc_override_string=NULL;
164 static int video_disable = 0;
165 static int video_discard = 0;
166 static char *video_codec_name = NULL;
167 static unsigned int video_codec_tag = 0;
168 static char *video_language = NULL;
169 static int same_quality = 0;
170 static int do_deinterlace = 0;
171 static int top_field_first = -1;
172 static int me_threshold = 0;
173 static int intra_dc_precision = 8;
174 static int loop_input = 0;
175 static int loop_output = AVFMT_NOOUTPUTLOOP;
176 static int qp_hist = 0;
177 #if CONFIG_AVFILTER
178 static char *vfilters = NULL;
179 #else
180 static unsigned int sws_flags = SWS_BICUBIC;
181 #endif
182
183 static int intra_only = 0;
184 static int audio_sample_rate = 44100;
185 static int64_t channel_layout = 0;
186 #define QSCALE_NONE -99999
187 static float audio_qscale = QSCALE_NONE;
188 static int audio_disable = 0;
189 static int audio_channels = 1;
190 static char  *audio_codec_name = NULL;
191 static unsigned int audio_codec_tag = 0;
192 static char *audio_language = NULL;
193
194 static int subtitle_disable = 0;
195 static char *subtitle_codec_name = NULL;
196 static char *subtitle_language = NULL;
197 static unsigned int subtitle_codec_tag = 0;
198
199 static float mux_preload= 0.5;
200 static float mux_max_delay= 0.7;
201
202 static int64_t recording_time = INT64_MAX;
203 static int64_t start_time = 0;
204 static int64_t recording_timestamp = 0;
205 static int64_t input_ts_offset = 0;
206 static int file_overwrite = 0;
207 static AVMetadata *metadata;
208 static int do_benchmark = 0;
209 static int do_hex_dump = 0;
210 static int do_pkt_dump = 0;
211 static int do_psnr = 0;
212 static int do_pass = 0;
213 static char *pass_logfilename_prefix = NULL;
214 static int audio_stream_copy = 0;
215 static int video_stream_copy = 0;
216 static int subtitle_stream_copy = 0;
217 static int video_sync_method= -1;
218 static int audio_sync_method= 0;
219 static float audio_drift_threshold= 0.1;
220 static int copy_ts= 0;
221 static int copy_tb;
222 static int opt_shortest = 0;
223 static int video_global_header = 0;
224 static char *vstats_filename;
225 static FILE *vstats_file;
226 static int opt_programid = 0;
227 static int copy_initial_nonkeyframes = 0;
228
229 static int rate_emu = 0;
230
231 static int  video_channel = 0;
232 static char *video_standard;
233
234 static int audio_volume = 256;
235
236 static int exit_on_error = 0;
237 static int using_stdin = 0;
238 static int verbose = 1;
239 static int thread_count= 1;
240 static int q_pressed = 0;
241 static int64_t video_size = 0;
242 static int64_t audio_size = 0;
243 static int64_t extra_size = 0;
244 static int nb_frames_dup = 0;
245 static int nb_frames_drop = 0;
246 static int input_sync;
247 static uint64_t limit_filesize = 0;
248 static int force_fps = 0;
249 static char *forced_key_frames = NULL;
250
251 static float dts_delta_threshold = 10;
252
253 static int64_t timer_start;
254
255 static uint8_t *audio_buf;
256 static uint8_t *audio_out;
257 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
258
259 static short *samples;
260
261 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
262 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
263 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
264
265 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
266
267 struct AVInputStream;
268
269 typedef struct AVOutputStream {
270     int file_index;          /* file index */
271     int index;               /* stream index in the output file */
272     int source_index;        /* AVInputStream index */
273     AVStream *st;            /* stream in the output file */
274     int encoding_needed;     /* true if encoding needed for this stream */
275     int frame_number;
276     /* input pts and corresponding output pts
277        for A/V sync */
278     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
279     struct AVInputStream *sync_ist; /* input stream to sync against */
280     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
281     AVBitStreamFilterContext *bitstream_filters;
282     /* video only */
283     int video_resample;
284     AVFrame pict_tmp;      /* temporary image for resampling */
285     struct SwsContext *img_resample_ctx; /* for image resampling */
286     int resample_height;
287     int resample_width;
288     int resample_pix_fmt;
289
290     /* full frame size of first frame */
291     int original_height;
292     int original_width;
293
294     /* forced key frames */
295     int64_t *forced_kf_pts;
296     int forced_kf_count;
297     int forced_kf_index;
298
299     /* audio only */
300     int audio_resample;
301     ReSampleContext *resample; /* for audio resampling */
302     int resample_sample_fmt;
303     int resample_channels;
304     int resample_sample_rate;
305     int reformat_pair;
306     AVAudioConvert *reformat_ctx;
307     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
308     FILE *logfile;
309
310 #if CONFIG_AVFILTER
311     AVFilterContext *output_video_filter;
312     AVFilterContext *input_video_filter;
313     AVFilterBufferRef *picref;
314     char *avfilter;
315     AVFilterGraph *graph;
316 #endif
317 } AVOutputStream;
318
319 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
320 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
321
322 typedef struct AVInputStream {
323     int file_index;
324     int index;
325     AVStream *st;
326     int discard;             /* true if stream data should be discarded */
327     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
328     int64_t sample_index;      /* current sample */
329
330     int64_t       start;     /* time when read started */
331     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
332                                 is not defined */
333     int64_t       pts;       /* current pts */
334     int is_start;            /* is 1 at the start and after a discontinuity */
335     int showed_multi_packet_warning;
336     int is_past_recording_time;
337 #if CONFIG_AVFILTER
338     AVFrame *filter_frame;
339     int has_filter_frame;
340 #endif
341 } AVInputStream;
342
343 typedef struct AVInputFile {
344     int eof_reached;      /* true if eof reached */
345     int ist_index;        /* index of first stream in ist_table */
346     int buffer_size;      /* current total buffer size */
347     int nb_streams;       /* nb streams we are aware of */
348 } AVInputFile;
349
350 #if HAVE_TERMIOS_H
351
352 /* init terminal so that we can grab keys */
353 static struct termios oldtty;
354 #endif
355
356 #if CONFIG_AVFILTER
357
358 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
359 {
360     AVFilterContext *last_filter, *filter;
361     /** filter graph containing all filters including input & output */
362     AVCodecContext *codec = ost->st->codec;
363     AVCodecContext *icodec = ist->st->codec;
364     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
365     AVRational sample_aspect_ratio;
366     char args[255];
367     int ret;
368
369     ost->graph = avfilter_graph_alloc();
370
371     if (ist->st->sample_aspect_ratio.num){
372         sample_aspect_ratio = ist->st->sample_aspect_ratio;
373     }else
374         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
375
376     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
377              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
378              sample_aspect_ratio.num, sample_aspect_ratio.den);
379
380     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
381                                        "src", args, NULL, ost->graph);
382     if (ret < 0)
383         return ret;
384     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
385                                        "out", NULL, &ffsink_ctx, ost->graph);
386     if (ret < 0)
387         return ret;
388     last_filter = ost->input_video_filter;
389
390     if (codec->width  != icodec->width || codec->height != icodec->height) {
391         snprintf(args, 255, "%d:%d:flags=0x%X",
392                  codec->width,
393                  codec->height,
394                  (int)av_get_int(sws_opts, "sws_flags", NULL));
395         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
396                                                 NULL, args, NULL, ost->graph)) < 0)
397             return ret;
398         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
399             return ret;
400         last_filter = filter;
401     }
402
403     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
404     ost->graph->scale_sws_opts = av_strdup(args);
405
406     if (ost->avfilter) {
407         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
408         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
409
410         outputs->name    = av_strdup("in");
411         outputs->filter_ctx = last_filter;
412         outputs->pad_idx = 0;
413         outputs->next    = NULL;
414
415         inputs->name    = av_strdup("out");
416         inputs->filter_ctx = ost->output_video_filter;
417         inputs->pad_idx = 0;
418         inputs->next    = NULL;
419
420         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
421             return ret;
422         av_freep(&ost->avfilter);
423     } else {
424         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
425             return ret;
426     }
427
428     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
429         return ret;
430
431     codec->width  = ost->output_video_filter->inputs[0]->w;
432     codec->height = ost->output_video_filter->inputs[0]->h;
433     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
434         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
435
436     return 0;
437 }
438 #endif /* CONFIG_AVFILTER */
439
440 static void term_exit(void)
441 {
442     av_log(NULL, AV_LOG_QUIET, "");
443 #if HAVE_TERMIOS_H
444     tcsetattr (0, TCSANOW, &oldtty);
445 #endif
446 }
447
448 static volatile int received_sigterm = 0;
449
450 static void
451 sigterm_handler(int sig)
452 {
453     received_sigterm = sig;
454     q_pressed++;
455     term_exit();
456 }
457
458 static void term_init(void)
459 {
460 #if HAVE_TERMIOS_H
461     struct termios tty;
462
463     tcgetattr (0, &tty);
464     oldtty = tty;
465     atexit(term_exit);
466
467     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
468                           |INLCR|IGNCR|ICRNL|IXON);
469     tty.c_oflag |= OPOST;
470     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
471     tty.c_cflag &= ~(CSIZE|PARENB);
472     tty.c_cflag |= CS8;
473     tty.c_cc[VMIN] = 1;
474     tty.c_cc[VTIME] = 0;
475
476     tcsetattr (0, TCSANOW, &tty);
477     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
478 #endif
479
480     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
481     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
482 #ifdef SIGXCPU
483     signal(SIGXCPU, sigterm_handler);
484 #endif
485 }
486
487 /* read a key without blocking */
488 static int read_key(void)
489 {
490 #if HAVE_TERMIOS_H
491     int n = 1;
492     unsigned char ch;
493     struct timeval tv;
494     fd_set rfds;
495
496     FD_ZERO(&rfds);
497     FD_SET(0, &rfds);
498     tv.tv_sec = 0;
499     tv.tv_usec = 0;
500     n = select(1, &rfds, NULL, NULL, &tv);
501     if (n > 0) {
502         n = read(0, &ch, 1);
503         if (n == 1)
504             return ch;
505
506         return n;
507     }
508 #elif HAVE_KBHIT
509     if(kbhit())
510         return(getch());
511 #endif
512     return -1;
513 }
514
515 static int decode_interrupt_cb(void)
516 {
517     q_pressed += read_key() == 'q';
518     return q_pressed > 1;
519 }
520
521 static int ffmpeg_exit(int ret)
522 {
523     int i;
524
525     /* close files */
526     for(i=0;i<nb_output_files;i++) {
527         AVFormatContext *s = output_files[i];
528         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
529             avio_close(s->pb);
530         avformat_free_context(s);
531         av_free(output_streams_for_file[i]);
532     }
533     for(i=0;i<nb_input_files;i++) {
534         av_close_input_file(input_files[i]);
535         av_free(input_files_ts_scale[i]);
536     }
537
538     av_free(intra_matrix);
539     av_free(inter_matrix);
540
541     if (vstats_file)
542         fclose(vstats_file);
543     av_free(vstats_filename);
544
545     av_free(streamid_map);
546     av_free(input_codecs);
547     av_free(output_codecs);
548     av_free(stream_maps);
549     av_free(meta_data_maps);
550
551     av_free(video_codec_name);
552     av_free(audio_codec_name);
553     av_free(subtitle_codec_name);
554
555     av_free(video_standard);
556
557     uninit_opts();
558     av_free(audio_buf);
559     av_free(audio_out);
560     allocated_audio_buf_size= allocated_audio_out_size= 0;
561     av_free(samples);
562
563 #if CONFIG_AVFILTER
564     avfilter_uninit();
565 #endif
566
567     if (received_sigterm) {
568         fprintf(stderr,
569             "Received signal %d: terminating.\n",
570             (int) received_sigterm);
571         exit (255);
572     }
573
574     exit(ret); /* not all OS-es handle main() return value */
575     return ret;
576 }
577
578 /* similar to ff_dynarray_add() and av_fast_realloc() */
579 static void *grow_array(void *array, int elem_size, int *size, int new_size)
580 {
581     if (new_size >= INT_MAX / elem_size) {
582         fprintf(stderr, "Array too big.\n");
583         ffmpeg_exit(1);
584     }
585     if (*size < new_size) {
586         uint8_t *tmp = av_realloc(array, new_size*elem_size);
587         if (!tmp) {
588             fprintf(stderr, "Could not alloc buffer.\n");
589             ffmpeg_exit(1);
590         }
591         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
592         *size = new_size;
593         return tmp;
594     }
595     return array;
596 }
597
598 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
599 {
600     if(codec && codec->sample_fmts){
601         const enum AVSampleFormat *p= codec->sample_fmts;
602         for(; *p!=-1; p++){
603             if(*p == st->codec->sample_fmt)
604                 break;
605         }
606         if (*p == -1) {
607             av_log(NULL, AV_LOG_WARNING,
608                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
609                    av_get_sample_fmt_name(st->codec->sample_fmt),
610                    codec->name,
611                    av_get_sample_fmt_name(codec->sample_fmts[0]));
612             st->codec->sample_fmt = codec->sample_fmts[0];
613         }
614     }
615 }
616
617 static void choose_sample_rate(AVStream *st, AVCodec *codec)
618 {
619     if(codec && codec->supported_samplerates){
620         const int *p= codec->supported_samplerates;
621         int best=0;
622         int best_dist=INT_MAX;
623         for(; *p; p++){
624             int dist= abs(st->codec->sample_rate - *p);
625             if(dist < best_dist){
626                 best_dist= dist;
627                 best= *p;
628             }
629         }
630         if(best_dist){
631             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
632         }
633         st->codec->sample_rate= best;
634     }
635 }
636
637 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
638 {
639     if(codec && codec->pix_fmts){
640         const enum PixelFormat *p= codec->pix_fmts;
641         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
642             if(st->codec->codec_id==CODEC_ID_MJPEG){
643                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
644             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
645                 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};
646             }
647         }
648         for(; *p!=-1; p++){
649             if(*p == st->codec->pix_fmt)
650                 break;
651         }
652         if (*p == -1) {
653             if(st->codec->pix_fmt != PIX_FMT_NONE)
654             av_log(NULL, AV_LOG_WARNING,
655                    "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
656                    av_pix_fmt_descriptors[st->codec->pix_fmt].name,
657                    codec->name,
658                    av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
659             st->codec->pix_fmt = codec->pix_fmts[0];
660         }
661     }
662 }
663
664 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
665 {
666     int idx = oc->nb_streams - 1;
667     AVOutputStream *ost;
668
669     output_streams_for_file[file_idx] =
670         grow_array(output_streams_for_file[file_idx],
671                    sizeof(*output_streams_for_file[file_idx]),
672                    &nb_output_streams_for_file[file_idx],
673                    oc->nb_streams);
674     ost = output_streams_for_file[file_idx][idx] =
675         av_mallocz(sizeof(AVOutputStream));
676     if (!ost) {
677         fprintf(stderr, "Could not alloc output stream\n");
678         ffmpeg_exit(1);
679     }
680     ost->file_index = file_idx;
681     ost->index = idx;
682     return ost;
683 }
684
685 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
686 {
687     int i, err;
688     AVFormatContext *ic;
689     int nopts = 0;
690
691     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
692     if (err < 0)
693         return err;
694     /* copy stream format */
695     s->nb_streams = 0;
696     for(i=0;i<ic->nb_streams;i++) {
697         AVStream *st;
698         AVCodec *codec;
699
700         s->nb_streams++;
701
702         // FIXME: a more elegant solution is needed
703         st = av_mallocz(sizeof(AVStream));
704         memcpy(st, ic->streams[i], sizeof(AVStream));
705         st->codec = avcodec_alloc_context();
706         if (!st->codec) {
707             print_error(filename, AVERROR(ENOMEM));
708             ffmpeg_exit(1);
709         }
710         avcodec_copy_context(st->codec, ic->streams[i]->codec);
711         s->streams[i] = st;
712
713         codec = avcodec_find_encoder(st->codec->codec_id);
714         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
715             if (audio_stream_copy) {
716                 st->stream_copy = 1;
717             } else
718                 choose_sample_fmt(st, codec);
719         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
720             if (video_stream_copy) {
721                 st->stream_copy = 1;
722             } else
723                 choose_pixel_fmt(st, codec);
724         }
725
726         if(st->codec->flags & CODEC_FLAG_BITEXACT)
727             nopts = 1;
728
729         new_output_stream(s, nb_output_files);
730     }
731
732     if (!nopts)
733         s->timestamp = av_gettime();
734
735     av_close_input_file(ic);
736     return 0;
737 }
738
739 static double
740 get_sync_ipts(const AVOutputStream *ost)
741 {
742     const AVInputStream *ist = ost->sync_ist;
743     return (double)(ist->pts - start_time)/AV_TIME_BASE;
744 }
745
746 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
747     int ret;
748
749     while(bsfc){
750         AVPacket new_pkt= *pkt;
751         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
752                                           &new_pkt.data, &new_pkt.size,
753                                           pkt->data, pkt->size,
754                                           pkt->flags & AV_PKT_FLAG_KEY);
755         if(a>0){
756             av_free_packet(pkt);
757             new_pkt.destruct= av_destruct_packet;
758         } else if(a<0){
759             fprintf(stderr, "%s failed for stream %d, codec %s",
760                     bsfc->filter->name, pkt->stream_index,
761                     avctx->codec ? avctx->codec->name : "copy");
762             print_error("", a);
763             if (exit_on_error)
764                 ffmpeg_exit(1);
765         }
766         *pkt= new_pkt;
767
768         bsfc= bsfc->next;
769     }
770
771     ret= av_interleaved_write_frame(s, pkt);
772     if(ret < 0){
773         print_error("av_interleaved_write_frame()", ret);
774         ffmpeg_exit(1);
775     }
776 }
777
778 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
779
780 static void do_audio_out(AVFormatContext *s,
781                          AVOutputStream *ost,
782                          AVInputStream *ist,
783                          unsigned char *buf, int size)
784 {
785     uint8_t *buftmp;
786     int64_t audio_out_size, audio_buf_size;
787     int64_t allocated_for_size= size;
788
789     int size_out, frame_bytes, ret, resample_changed;
790     AVCodecContext *enc= ost->st->codec;
791     AVCodecContext *dec= ist->st->codec;
792     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
793     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
794     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
795
796 need_realloc:
797     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
798     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
799     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
800     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
801     audio_buf_size*= osize*enc->channels;
802
803     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
804     if(coded_bps > 8*osize)
805         audio_out_size= audio_out_size * coded_bps / (8*osize);
806     audio_out_size += FF_MIN_BUFFER_SIZE;
807
808     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
809         fprintf(stderr, "Buffer sizes too large\n");
810         ffmpeg_exit(1);
811     }
812
813     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
814     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
815     if (!audio_buf || !audio_out){
816         fprintf(stderr, "Out of memory in do_audio_out\n");
817         ffmpeg_exit(1);
818     }
819
820     if (enc->channels != dec->channels)
821         ost->audio_resample = 1;
822
823     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
824                        ost->resample_channels    != dec->channels   ||
825                        ost->resample_sample_rate != dec->sample_rate;
826
827     if ((ost->audio_resample && !ost->resample) || resample_changed) {
828         if (resample_changed) {
829             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",
830                    ist->file_index, ist->index,
831                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
832                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
833             ost->resample_sample_fmt  = dec->sample_fmt;
834             ost->resample_channels    = dec->channels;
835             ost->resample_sample_rate = dec->sample_rate;
836             if (ost->resample)
837                 audio_resample_close(ost->resample);
838         }
839         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
840         if (audio_sync_method <= 1 &&
841             ost->resample_sample_fmt  == enc->sample_fmt &&
842             ost->resample_channels    == enc->channels   &&
843             ost->resample_sample_rate == enc->sample_rate) {
844             ost->resample = NULL;
845             ost->audio_resample = 0;
846         } else {
847             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
848                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
849             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
850                                                    enc->sample_rate, dec->sample_rate,
851                                                    enc->sample_fmt,  dec->sample_fmt,
852                                                    16, 10, 0, 0.8);
853             if (!ost->resample) {
854                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
855                         dec->channels, dec->sample_rate,
856                         enc->channels, enc->sample_rate);
857                 ffmpeg_exit(1);
858             }
859         }
860     }
861
862 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
863     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
864         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
865         if (ost->reformat_ctx)
866             av_audio_convert_free(ost->reformat_ctx);
867         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
868                                                    dec->sample_fmt, 1, NULL, 0);
869         if (!ost->reformat_ctx) {
870             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
871                 av_get_sample_fmt_name(dec->sample_fmt),
872                 av_get_sample_fmt_name(enc->sample_fmt));
873             ffmpeg_exit(1);
874         }
875         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
876     }
877
878     if(audio_sync_method){
879         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
880                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
881         double idelta= delta*dec->sample_rate / enc->sample_rate;
882         int byte_delta= ((int)idelta)*2*dec->channels;
883
884         //FIXME resample delay
885         if(fabs(delta) > 50){
886             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
887                 if(byte_delta < 0){
888                     byte_delta= FFMAX(byte_delta, -size);
889                     size += byte_delta;
890                     buf  -= byte_delta;
891                     if(verbose > 2)
892                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
893                     if(!size)
894                         return;
895                     ist->is_start=0;
896                 }else{
897                     static uint8_t *input_tmp= NULL;
898                     input_tmp= av_realloc(input_tmp, byte_delta + size);
899
900                     if(byte_delta > allocated_for_size - size){
901                         allocated_for_size= byte_delta + (int64_t)size;
902                         goto need_realloc;
903                     }
904                     ist->is_start=0;
905
906                     memset(input_tmp, 0, byte_delta);
907                     memcpy(input_tmp + byte_delta, buf, size);
908                     buf= input_tmp;
909                     size += byte_delta;
910                     if(verbose > 2)
911                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
912                 }
913             }else if(audio_sync_method>1){
914                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
915                 av_assert0(ost->audio_resample);
916                 if(verbose > 2)
917                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
918 //                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));
919                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
920             }
921         }
922     }else
923         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
924                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
925
926     if (ost->audio_resample) {
927         buftmp = audio_buf;
928         size_out = audio_resample(ost->resample,
929                                   (short *)buftmp, (short *)buf,
930                                   size / (dec->channels * isize));
931         size_out = size_out * enc->channels * osize;
932     } else {
933         buftmp = buf;
934         size_out = size;
935     }
936
937     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
938         const void *ibuf[6]= {buftmp};
939         void *obuf[6]= {audio_buf};
940         int istride[6]= {isize};
941         int ostride[6]= {osize};
942         int len= size_out/istride[0];
943         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
944             printf("av_audio_convert() failed\n");
945             if (exit_on_error)
946                 ffmpeg_exit(1);
947             return;
948         }
949         buftmp = audio_buf;
950         size_out = len*osize;
951     }
952
953     /* now encode as many frames as possible */
954     if (enc->frame_size > 1) {
955         /* output resampled raw samples */
956         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
957             fprintf(stderr, "av_fifo_realloc2() failed\n");
958             ffmpeg_exit(1);
959         }
960         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
961
962         frame_bytes = enc->frame_size * osize * enc->channels;
963
964         while (av_fifo_size(ost->fifo) >= frame_bytes) {
965             AVPacket pkt;
966             av_init_packet(&pkt);
967
968             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
969
970             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
971
972             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
973                                        (short *)audio_buf);
974             if (ret < 0) {
975                 fprintf(stderr, "Audio encoding failed\n");
976                 ffmpeg_exit(1);
977             }
978             audio_size += ret;
979             pkt.stream_index= ost->index;
980             pkt.data= audio_out;
981             pkt.size= ret;
982             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
983                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
984             pkt.flags |= AV_PKT_FLAG_KEY;
985             write_frame(s, &pkt, enc, ost->bitstream_filters);
986
987             ost->sync_opts += enc->frame_size;
988         }
989     } else {
990         AVPacket pkt;
991         av_init_packet(&pkt);
992
993         ost->sync_opts += size_out / (osize * enc->channels);
994
995         /* output a pcm frame */
996         /* determine the size of the coded buffer */
997         size_out /= osize;
998         if (coded_bps)
999             size_out = size_out*coded_bps/8;
1000
1001         if(size_out > audio_out_size){
1002             fprintf(stderr, "Internal error, buffer size too small\n");
1003             ffmpeg_exit(1);
1004         }
1005
1006         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1007         ret = avcodec_encode_audio(enc, audio_out, size_out,
1008                                    (short *)buftmp);
1009         if (ret < 0) {
1010             fprintf(stderr, "Audio encoding failed\n");
1011             ffmpeg_exit(1);
1012         }
1013         audio_size += ret;
1014         pkt.stream_index= ost->index;
1015         pkt.data= audio_out;
1016         pkt.size= ret;
1017         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1018             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1019         pkt.flags |= AV_PKT_FLAG_KEY;
1020         write_frame(s, &pkt, enc, ost->bitstream_filters);
1021     }
1022 }
1023
1024 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1025 {
1026     AVCodecContext *dec;
1027     AVPicture *picture2;
1028     AVPicture picture_tmp;
1029     uint8_t *buf = 0;
1030
1031     dec = ist->st->codec;
1032
1033     /* deinterlace : must be done before any resize */
1034     if (do_deinterlace) {
1035         int size;
1036
1037         /* create temporary picture */
1038         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1039         buf = av_malloc(size);
1040         if (!buf)
1041             return;
1042
1043         picture2 = &picture_tmp;
1044         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1045
1046         if(avpicture_deinterlace(picture2, picture,
1047                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1048             /* if error, do not deinterlace */
1049             fprintf(stderr, "Deinterlacing failed\n");
1050             av_free(buf);
1051             buf = NULL;
1052             picture2 = picture;
1053         }
1054     } else {
1055         picture2 = picture;
1056     }
1057
1058     if (picture != picture2)
1059         *picture = *picture2;
1060     *bufp = buf;
1061 }
1062
1063 /* we begin to correct av delay at this threshold */
1064 #define AV_DELAY_MAX 0.100
1065
1066 static void do_subtitle_out(AVFormatContext *s,
1067                             AVOutputStream *ost,
1068                             AVInputStream *ist,
1069                             AVSubtitle *sub,
1070                             int64_t pts)
1071 {
1072     static uint8_t *subtitle_out = NULL;
1073     int subtitle_out_max_size = 1024 * 1024;
1074     int subtitle_out_size, nb, i;
1075     AVCodecContext *enc;
1076     AVPacket pkt;
1077
1078     if (pts == AV_NOPTS_VALUE) {
1079         fprintf(stderr, "Subtitle packets must have a pts\n");
1080         if (exit_on_error)
1081             ffmpeg_exit(1);
1082         return;
1083     }
1084
1085     enc = ost->st->codec;
1086
1087     if (!subtitle_out) {
1088         subtitle_out = av_malloc(subtitle_out_max_size);
1089     }
1090
1091     /* Note: DVB subtitle need one packet to draw them and one other
1092        packet to clear them */
1093     /* XXX: signal it in the codec context ? */
1094     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1095         nb = 2;
1096     else
1097         nb = 1;
1098
1099     for(i = 0; i < nb; i++) {
1100         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1101         // start_display_time is required to be 0
1102         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1103         sub->end_display_time -= sub->start_display_time;
1104         sub->start_display_time = 0;
1105         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1106                                                     subtitle_out_max_size, sub);
1107         if (subtitle_out_size < 0) {
1108             fprintf(stderr, "Subtitle encoding failed\n");
1109             ffmpeg_exit(1);
1110         }
1111
1112         av_init_packet(&pkt);
1113         pkt.stream_index = ost->index;
1114         pkt.data = subtitle_out;
1115         pkt.size = subtitle_out_size;
1116         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1117         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1118             /* XXX: the pts correction is handled here. Maybe handling
1119                it in the codec would be better */
1120             if (i == 0)
1121                 pkt.pts += 90 * sub->start_display_time;
1122             else
1123                 pkt.pts += 90 * sub->end_display_time;
1124         }
1125         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1126     }
1127 }
1128
1129 static int bit_buffer_size= 1024*256;
1130 static uint8_t *bit_buffer= NULL;
1131
1132 static void do_video_out(AVFormatContext *s,
1133                          AVOutputStream *ost,
1134                          AVInputStream *ist,
1135                          AVFrame *in_picture,
1136                          int *frame_size)
1137 {
1138     int nb_frames, i, ret;
1139     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1140     AVCodecContext *enc, *dec;
1141     double sync_ipts;
1142
1143     enc = ost->st->codec;
1144     dec = ist->st->codec;
1145
1146     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1147
1148     /* by default, we output a single frame */
1149     nb_frames = 1;
1150
1151     *frame_size = 0;
1152
1153     if(video_sync_method){
1154         double vdelta = sync_ipts - ost->sync_opts;
1155         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1156         if (vdelta < -1.1)
1157             nb_frames = 0;
1158         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1159             if(vdelta<=-0.6){
1160                 nb_frames=0;
1161             }else if(vdelta>0.6)
1162                 ost->sync_opts= lrintf(sync_ipts);
1163         }else if (vdelta > 1.1)
1164             nb_frames = lrintf(vdelta);
1165 //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);
1166         if (nb_frames == 0){
1167             ++nb_frames_drop;
1168             if (verbose>2)
1169                 fprintf(stderr, "*** drop!\n");
1170         }else if (nb_frames > 1) {
1171             nb_frames_dup += nb_frames - 1;
1172             if (verbose>2)
1173                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1174         }
1175     }else
1176         ost->sync_opts= lrintf(sync_ipts);
1177
1178     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1179     if (nb_frames <= 0)
1180         return;
1181
1182     formatted_picture = in_picture;
1183     final_picture = formatted_picture;
1184     padding_src = formatted_picture;
1185     resampling_dst = &ost->pict_tmp;
1186
1187     if (   ost->resample_height != ist->st->codec->height
1188         || ost->resample_width  != ist->st->codec->width
1189         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1190
1191         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1192         if(!ost->video_resample)
1193             ffmpeg_exit(1);
1194     }
1195
1196 #if !CONFIG_AVFILTER
1197     if (ost->video_resample) {
1198         padding_src = NULL;
1199         final_picture = &ost->pict_tmp;
1200         if(  ost->resample_height != ist->st->codec->height
1201           || ost->resample_width  != ist->st->codec->width
1202           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1203
1204             /* initialize a new scaler context */
1205             sws_freeContext(ost->img_resample_ctx);
1206             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1207             ost->img_resample_ctx = sws_getContext(
1208                 ist->st->codec->width,
1209                 ist->st->codec->height,
1210                 ist->st->codec->pix_fmt,
1211                 ost->st->codec->width,
1212                 ost->st->codec->height,
1213                 ost->st->codec->pix_fmt,
1214                 sws_flags, NULL, NULL, NULL);
1215             if (ost->img_resample_ctx == NULL) {
1216                 fprintf(stderr, "Cannot get resampling context\n");
1217                 ffmpeg_exit(1);
1218             }
1219         }
1220         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1221               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1222     }
1223 #endif
1224
1225     /* duplicates frame if needed */
1226     for(i=0;i<nb_frames;i++) {
1227         AVPacket pkt;
1228         av_init_packet(&pkt);
1229         pkt.stream_index= ost->index;
1230
1231         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1232             /* raw pictures are written as AVPicture structure to
1233                avoid any copies. We support temorarily the older
1234                method. */
1235             AVFrame* old_frame = enc->coded_frame;
1236             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1237             pkt.data= (uint8_t *)final_picture;
1238             pkt.size=  sizeof(AVPicture);
1239             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1240             pkt.flags |= AV_PKT_FLAG_KEY;
1241
1242             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1243             enc->coded_frame = old_frame;
1244         } else {
1245             AVFrame big_picture;
1246
1247             big_picture= *final_picture;
1248             /* better than nothing: use input picture interlaced
1249                settings */
1250             big_picture.interlaced_frame = in_picture->interlaced_frame;
1251             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1252                 if(top_field_first == -1)
1253                     big_picture.top_field_first = in_picture->top_field_first;
1254                 else
1255                     big_picture.top_field_first = top_field_first;
1256             }
1257
1258             /* handles sameq here. This is not correct because it may
1259                not be a global option */
1260             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1261             if(!me_threshold)
1262                 big_picture.pict_type = 0;
1263 //            big_picture.pts = AV_NOPTS_VALUE;
1264             big_picture.pts= ost->sync_opts;
1265 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1266 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1267             if (ost->forced_kf_index < ost->forced_kf_count &&
1268                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1269                 big_picture.pict_type = FF_I_TYPE;
1270                 ost->forced_kf_index++;
1271             }
1272             ret = avcodec_encode_video(enc,
1273                                        bit_buffer, bit_buffer_size,
1274                                        &big_picture);
1275             if (ret < 0) {
1276                 fprintf(stderr, "Video encoding failed\n");
1277                 ffmpeg_exit(1);
1278             }
1279
1280             if(ret>0){
1281                 pkt.data= bit_buffer;
1282                 pkt.size= ret;
1283                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1284                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1285 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1286    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1287    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1288
1289                 if(enc->coded_frame->key_frame)
1290                     pkt.flags |= AV_PKT_FLAG_KEY;
1291                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1292                 *frame_size = ret;
1293                 video_size += ret;
1294                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1295                 //        enc->frame_number-1, ret, enc->pict_type);
1296                 /* if two pass, output log */
1297                 if (ost->logfile && enc->stats_out) {
1298                     fprintf(ost->logfile, "%s", enc->stats_out);
1299                 }
1300             }
1301         }
1302         ost->sync_opts++;
1303         ost->frame_number++;
1304     }
1305 }
1306
1307 static double psnr(double d){
1308     return -10.0*log(d)/log(10.0);
1309 }
1310
1311 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1312                            int frame_size)
1313 {
1314     AVCodecContext *enc;
1315     int frame_number;
1316     double ti1, bitrate, avg_bitrate;
1317
1318     /* this is executed just the first time do_video_stats is called */
1319     if (!vstats_file) {
1320         vstats_file = fopen(vstats_filename, "w");
1321         if (!vstats_file) {
1322             perror("fopen");
1323             ffmpeg_exit(1);
1324         }
1325     }
1326
1327     enc = ost->st->codec;
1328     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1329         frame_number = ost->frame_number;
1330         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1331         if (enc->flags&CODEC_FLAG_PSNR)
1332             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1333
1334         fprintf(vstats_file,"f_size= %6d ", frame_size);
1335         /* compute pts value */
1336         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1337         if (ti1 < 0.01)
1338             ti1 = 0.01;
1339
1340         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1341         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1342         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1343             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1344         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1345     }
1346 }
1347
1348 static void print_report(AVFormatContext **output_files,
1349                          AVOutputStream **ost_table, int nb_ostreams,
1350                          int is_last_report)
1351 {
1352     char buf[1024];
1353     AVOutputStream *ost;
1354     AVFormatContext *oc;
1355     int64_t total_size;
1356     AVCodecContext *enc;
1357     int frame_number, vid, i;
1358     double bitrate, ti1, pts;
1359     static int64_t last_time = -1;
1360     static int qp_histogram[52];
1361
1362     if (!is_last_report) {
1363         int64_t cur_time;
1364         /* display the report every 0.5 seconds */
1365         cur_time = av_gettime();
1366         if (last_time == -1) {
1367             last_time = cur_time;
1368             return;
1369         }
1370         if ((cur_time - last_time) < 500000)
1371             return;
1372         last_time = cur_time;
1373     }
1374
1375
1376     oc = output_files[0];
1377
1378     total_size = avio_size(oc->pb);
1379     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1380         total_size= avio_tell(oc->pb);
1381
1382     buf[0] = '\0';
1383     ti1 = 1e10;
1384     vid = 0;
1385     for(i=0;i<nb_ostreams;i++) {
1386         float q= -1;
1387         ost = ost_table[i];
1388         enc = ost->st->codec;
1389         if(!ost->st->stream_copy && enc->coded_frame)
1390             q= enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1391         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1392             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1393         }
1394         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1395             float t = (av_gettime()-timer_start) / 1000000.0;
1396
1397             frame_number = ost->frame_number;
1398             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1399                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1400             if(is_last_report)
1401                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1402             if(qp_hist){
1403                 int j;
1404                 int qp= lrintf(q);
1405                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1406                     qp_histogram[qp]++;
1407                 for(j=0; j<32; j++)
1408                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1409             }
1410             if (enc->flags&CODEC_FLAG_PSNR){
1411                 int j;
1412                 double error, error_sum=0;
1413                 double scale, scale_sum=0;
1414                 char type[3]= {'Y','U','V'};
1415                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1416                 for(j=0; j<3; j++){
1417                     if(is_last_report){
1418                         error= enc->error[j];
1419                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1420                     }else{
1421                         error= enc->coded_frame->error[j];
1422                         scale= enc->width*enc->height*255.0*255.0;
1423                     }
1424                     if(j) scale/=4;
1425                     error_sum += error;
1426                     scale_sum += scale;
1427                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1428                 }
1429                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1430             }
1431             vid = 1;
1432         }
1433         /* compute min output value */
1434         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1435         if ((pts < ti1) && (pts > 0))
1436             ti1 = pts;
1437     }
1438     if (ti1 < 0.01)
1439         ti1 = 0.01;
1440
1441     if (verbose || is_last_report) {
1442         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1443
1444         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1445             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1446             (double)total_size / 1024, ti1, bitrate);
1447
1448         if (nb_frames_dup || nb_frames_drop)
1449           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1450                   nb_frames_dup, nb_frames_drop);
1451
1452         if (verbose >= 0)
1453             fprintf(stderr, "%s    \r", buf);
1454
1455         fflush(stderr);
1456     }
1457
1458     if (is_last_report && verbose >= 0){
1459         int64_t raw= audio_size + video_size + extra_size;
1460         fprintf(stderr, "\n");
1461         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1462                 video_size/1024.0,
1463                 audio_size/1024.0,
1464                 extra_size/1024.0,
1465                 100.0*(total_size - raw)/raw
1466         );
1467     }
1468 }
1469
1470 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1471 {
1472     int fill_char = 0x00;
1473     if (sample_fmt == AV_SAMPLE_FMT_U8)
1474         fill_char = 0x80;
1475     memset(buf, fill_char, size);
1476 }
1477
1478 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1479 static int output_packet(AVInputStream *ist, int ist_index,
1480                          AVOutputStream **ost_table, int nb_ostreams,
1481                          const AVPacket *pkt)
1482 {
1483     AVFormatContext *os;
1484     AVOutputStream *ost;
1485     int ret, i;
1486     int got_picture;
1487     AVFrame picture;
1488     void *buffer_to_free;
1489     static unsigned int samples_size= 0;
1490     AVSubtitle subtitle, *subtitle_to_free;
1491     int64_t pkt_pts = AV_NOPTS_VALUE;
1492 #if CONFIG_AVFILTER
1493     int frame_available;
1494 #endif
1495
1496     AVPacket avpkt;
1497     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1498
1499     if(ist->next_pts == AV_NOPTS_VALUE)
1500         ist->next_pts= ist->pts;
1501
1502     if (pkt == NULL) {
1503         /* EOF handling */
1504         av_init_packet(&avpkt);
1505         avpkt.data = NULL;
1506         avpkt.size = 0;
1507         goto handle_eof;
1508     } else {
1509         avpkt = *pkt;
1510     }
1511
1512     if(pkt->dts != AV_NOPTS_VALUE)
1513         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1514     if(pkt->pts != AV_NOPTS_VALUE)
1515         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1516
1517     //while we have more to decode or while the decoder did output something on EOF
1518     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1519         uint8_t *data_buf, *decoded_data_buf;
1520         int data_size, decoded_data_size;
1521     handle_eof:
1522         ist->pts= ist->next_pts;
1523
1524         if(avpkt.size && avpkt.size != pkt->size &&
1525            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1526             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1527             ist->showed_multi_packet_warning=1;
1528         }
1529
1530         /* decode the packet if needed */
1531         decoded_data_buf = NULL; /* fail safe */
1532         decoded_data_size= 0;
1533         data_buf  = avpkt.data;
1534         data_size = avpkt.size;
1535         subtitle_to_free = NULL;
1536         if (ist->decoding_needed) {
1537             switch(ist->st->codec->codec_type) {
1538             case AVMEDIA_TYPE_AUDIO:{
1539                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1540                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1541                     av_free(samples);
1542                     samples= av_malloc(samples_size);
1543                 }
1544                 decoded_data_size= samples_size;
1545                     /* XXX: could avoid copy if PCM 16 bits with same
1546                        endianness as CPU */
1547                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1548                                             &avpkt);
1549                 if (ret < 0)
1550                     goto fail_decode;
1551                 avpkt.data += ret;
1552                 avpkt.size -= ret;
1553                 data_size   = ret;
1554                 /* Some bug in mpeg audio decoder gives */
1555                 /* decoded_data_size < 0, it seems they are overflows */
1556                 if (decoded_data_size <= 0) {
1557                     /* no audio frame */
1558                     continue;
1559                 }
1560                 decoded_data_buf = (uint8_t *)samples;
1561                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1562                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1563                 break;}
1564             case AVMEDIA_TYPE_VIDEO:
1565                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1566                     /* XXX: allocate picture correctly */
1567                     avcodec_get_frame_defaults(&picture);
1568                     avpkt.pts = pkt_pts;
1569                     avpkt.dts = ist->pts;
1570                     pkt_pts = AV_NOPTS_VALUE;
1571
1572                     ret = avcodec_decode_video2(ist->st->codec,
1573                                                 &picture, &got_picture, &avpkt);
1574                     ist->st->quality= picture.quality;
1575                     if (ret < 0)
1576                         goto fail_decode;
1577                     if (!got_picture) {
1578                         /* no picture yet */
1579                         goto discard_packet;
1580                     }
1581                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
1582                     if (ist->st->codec->time_base.num != 0) {
1583                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1584                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1585                                           ist->st->codec->time_base.num * ticks) /
1586                             ist->st->codec->time_base.den;
1587                     }
1588                     avpkt.size = 0;
1589                     break;
1590             case AVMEDIA_TYPE_SUBTITLE:
1591                 ret = avcodec_decode_subtitle2(ist->st->codec,
1592                                                &subtitle, &got_picture, &avpkt);
1593                 if (ret < 0)
1594                     goto fail_decode;
1595                 if (!got_picture) {
1596                     goto discard_packet;
1597                 }
1598                 subtitle_to_free = &subtitle;
1599                 avpkt.size = 0;
1600                 break;
1601             default:
1602                 goto fail_decode;
1603             }
1604         } else {
1605             switch(ist->st->codec->codec_type) {
1606             case AVMEDIA_TYPE_AUDIO:
1607                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1608                     ist->st->codec->sample_rate;
1609                 break;
1610             case AVMEDIA_TYPE_VIDEO:
1611                 if (ist->st->codec->time_base.num != 0) {
1612                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1613                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1614                                       ist->st->codec->time_base.num * ticks) /
1615                         ist->st->codec->time_base.den;
1616                 }
1617                 break;
1618             }
1619             ret = avpkt.size;
1620             avpkt.size = 0;
1621         }
1622
1623         buffer_to_free = NULL;
1624         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1625             pre_process_video_frame(ist, (AVPicture *)&picture,
1626                                     &buffer_to_free);
1627         }
1628
1629 #if CONFIG_AVFILTER
1630         if(ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
1631             for(i=0;i<nb_ostreams;i++) {
1632                 ost = ost_table[i];
1633                 if (ost->input_video_filter && ost->source_index == ist_index) {
1634                     AVRational sar;
1635                     if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1636                     else                                  sar = ist->st->codec->sample_aspect_ratio;
1637                     // add it to be filtered
1638                     av_vsrc_buffer_add_frame2(ost->input_video_filter, &picture,
1639                                              ist->pts,
1640                                              sar, ist->st->codec->width, ist->st->codec->height,
1641                                              ist->st->codec->pix_fmt, "0:0"); //TODO user setable params
1642                 }
1643             }
1644         }
1645 #endif
1646
1647         // preprocess audio (volume)
1648         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1649             if (audio_volume != 256) {
1650                 short *volp;
1651                 volp = samples;
1652                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1653                     int v = ((*volp) * audio_volume + 128) >> 8;
1654                     if (v < -32768) v = -32768;
1655                     if (v >  32767) v = 32767;
1656                     *volp++ = v;
1657                 }
1658             }
1659         }
1660
1661         /* frame rate emulation */
1662         if (rate_emu) {
1663             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1664             int64_t now = av_gettime() - ist->start;
1665             if (pts > now)
1666                 usleep(pts - now);
1667         }
1668         /* if output time reached then transcode raw format,
1669            encode packets and output them */
1670         if (start_time == 0 || ist->pts >= start_time)
1671             for(i=0;i<nb_ostreams;i++) {
1672                 int frame_size;
1673
1674                 ost = ost_table[i];
1675                 if (ost->source_index == ist_index) {
1676 #if CONFIG_AVFILTER
1677                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1678                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1679                 while (frame_available) {
1680                     AVRational ist_pts_tb;
1681                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1682                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1683                     if (ost->picref)
1684                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1685 #endif
1686                     os = output_files[ost->file_index];
1687
1688                     /* set the input output pts pairs */
1689                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1690
1691                     if (ost->encoding_needed) {
1692                         av_assert0(ist->decoding_needed);
1693                         switch(ost->st->codec->codec_type) {
1694                         case AVMEDIA_TYPE_AUDIO:
1695                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1696                             break;
1697                         case AVMEDIA_TYPE_VIDEO:
1698 #if CONFIG_AVFILTER
1699                             if (ost->picref->video)
1700                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1701 #endif
1702                             do_video_out(os, ost, ist, &picture, &frame_size);
1703                             if (vstats_filename && frame_size)
1704                                 do_video_stats(os, ost, frame_size);
1705                             break;
1706                         case AVMEDIA_TYPE_SUBTITLE:
1707                             do_subtitle_out(os, ost, ist, &subtitle,
1708                                             pkt->pts);
1709                             break;
1710                         default:
1711                             abort();
1712                         }
1713                     } else {
1714                         AVFrame avframe; //FIXME/XXX remove this
1715                         AVPacket opkt;
1716                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1717
1718                         av_init_packet(&opkt);
1719
1720                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1721 #if !CONFIG_AVFILTER
1722                             continue;
1723 #else
1724                             goto cont;
1725 #endif
1726
1727                         /* no reencoding needed : output the packet directly */
1728                         /* force the input stream PTS */
1729
1730                         avcodec_get_frame_defaults(&avframe);
1731                         ost->st->codec->coded_frame= &avframe;
1732                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1733
1734                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1735                             audio_size += data_size;
1736                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1737                             video_size += data_size;
1738                             ost->sync_opts++;
1739                         }
1740
1741                         opkt.stream_index= ost->index;
1742                         if(pkt->pts != AV_NOPTS_VALUE)
1743                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1744                         else
1745                             opkt.pts= AV_NOPTS_VALUE;
1746
1747                         if (pkt->dts == AV_NOPTS_VALUE)
1748                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1749                         else
1750                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1751                         opkt.dts -= ost_tb_start_time;
1752
1753                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1754                         opkt.flags= pkt->flags;
1755
1756                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1757                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1758                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1759                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1760                            ) {
1761                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1762                                 opkt.destruct= av_destruct_packet;
1763                         } else {
1764                             opkt.data = data_buf;
1765                             opkt.size = data_size;
1766                         }
1767
1768                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1769                         ost->st->codec->frame_number++;
1770                         ost->frame_number++;
1771                         av_free_packet(&opkt);
1772                     }
1773 #if CONFIG_AVFILTER
1774                     cont:
1775                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1776                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1777                     if(ost->picref)
1778                         avfilter_unref_buffer(ost->picref);
1779                 }
1780 #endif
1781                 }
1782             }
1783
1784         av_free(buffer_to_free);
1785         /* XXX: allocate the subtitles in the codec ? */
1786         if (subtitle_to_free) {
1787             avsubtitle_free(subtitle_to_free);
1788             subtitle_to_free = NULL;
1789         }
1790     }
1791  discard_packet:
1792     if (pkt == NULL) {
1793         /* EOF handling */
1794
1795         for(i=0;i<nb_ostreams;i++) {
1796             ost = ost_table[i];
1797             if (ost->source_index == ist_index) {
1798                 AVCodecContext *enc= ost->st->codec;
1799                 os = output_files[ost->file_index];
1800
1801                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1802                     continue;
1803                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1804                     continue;
1805
1806                 if (ost->encoding_needed) {
1807                     for(;;) {
1808                         AVPacket pkt;
1809                         int fifo_bytes;
1810                         av_init_packet(&pkt);
1811                         pkt.stream_index= ost->index;
1812
1813                         switch(ost->st->codec->codec_type) {
1814                         case AVMEDIA_TYPE_AUDIO:
1815                             fifo_bytes = av_fifo_size(ost->fifo);
1816                             ret = 0;
1817                             /* encode any samples remaining in fifo */
1818                             if (fifo_bytes > 0) {
1819                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1820                                 int fs_tmp = enc->frame_size;
1821
1822                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1823                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1824                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1825                                 } else { /* pad */
1826                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1827                                     if (allocated_audio_buf_size < frame_bytes)
1828                                         ffmpeg_exit(1);
1829                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1830                                 }
1831
1832                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1833                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1834                                                           ost->st->time_base.num, enc->sample_rate);
1835                                 enc->frame_size = fs_tmp;
1836                             }
1837                             if(ret <= 0) {
1838                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1839                             }
1840                             if (ret < 0) {
1841                                 fprintf(stderr, "Audio encoding failed\n");
1842                                 ffmpeg_exit(1);
1843                             }
1844                             audio_size += ret;
1845                             pkt.flags |= AV_PKT_FLAG_KEY;
1846                             break;
1847                         case AVMEDIA_TYPE_VIDEO:
1848                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1849                             if (ret < 0) {
1850                                 fprintf(stderr, "Video encoding failed\n");
1851                                 ffmpeg_exit(1);
1852                             }
1853                             video_size += ret;
1854                             if(enc->coded_frame && enc->coded_frame->key_frame)
1855                                 pkt.flags |= AV_PKT_FLAG_KEY;
1856                             if (ost->logfile && enc->stats_out) {
1857                                 fprintf(ost->logfile, "%s", enc->stats_out);
1858                             }
1859                             break;
1860                         default:
1861                             ret=-1;
1862                         }
1863
1864                         if(ret<=0)
1865                             break;
1866                         pkt.data= bit_buffer;
1867                         pkt.size= ret;
1868                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1869                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1870                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1871                     }
1872                 }
1873             }
1874         }
1875     }
1876
1877     return 0;
1878  fail_decode:
1879     return -1;
1880 }
1881
1882 static void print_sdp(AVFormatContext **avc, int n)
1883 {
1884     char sdp[2048];
1885
1886     av_sdp_create(avc, n, sdp, sizeof(sdp));
1887     printf("SDP:\n%s\n", sdp);
1888     fflush(stdout);
1889 }
1890
1891 static int copy_chapters(int infile, int outfile)
1892 {
1893     AVFormatContext *is = input_files[infile];
1894     AVFormatContext *os = output_files[outfile];
1895     int i;
1896
1897     for (i = 0; i < is->nb_chapters; i++) {
1898         AVChapter *in_ch = is->chapters[i], *out_ch;
1899         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1900                                       AV_TIME_BASE_Q, in_ch->time_base);
1901         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1902                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1903
1904
1905         if (in_ch->end < ts_off)
1906             continue;
1907         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1908             break;
1909
1910         out_ch = av_mallocz(sizeof(AVChapter));
1911         if (!out_ch)
1912             return AVERROR(ENOMEM);
1913
1914         out_ch->id        = in_ch->id;
1915         out_ch->time_base = in_ch->time_base;
1916         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1917         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1918
1919         if (metadata_chapters_autocopy)
1920             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1921
1922         os->nb_chapters++;
1923         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1924         if (!os->chapters)
1925             return AVERROR(ENOMEM);
1926         os->chapters[os->nb_chapters - 1] = out_ch;
1927     }
1928     return 0;
1929 }
1930
1931 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1932                                     AVCodecContext *avctx)
1933 {
1934     char *p;
1935     int n = 1, i;
1936     int64_t t;
1937
1938     for (p = kf; *p; p++)
1939         if (*p == ',')
1940             n++;
1941     ost->forced_kf_count = n;
1942     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1943     if (!ost->forced_kf_pts) {
1944         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1945         ffmpeg_exit(1);
1946     }
1947     for (i = 0; i < n; i++) {
1948         p = i ? strchr(p, ',') + 1 : kf;
1949         t = parse_time_or_die("force_key_frames", p, 1);
1950         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1951     }
1952 }
1953
1954 /*
1955  * The following code is the main loop of the file converter
1956  */
1957 static int transcode(AVFormatContext **output_files,
1958                      int nb_output_files,
1959                      AVFormatContext **input_files,
1960                      int nb_input_files,
1961                      AVStreamMap *stream_maps, int nb_stream_maps)
1962 {
1963     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, step;
1964     AVFormatContext *is, *os;
1965     AVCodecContext *codec, *icodec;
1966     AVOutputStream *ost, **ost_table = NULL;
1967     AVInputStream *ist, **ist_table = NULL;
1968     AVInputFile *file_table;
1969     char error[1024];
1970     int key;
1971     int want_sdp = 1;
1972     uint8_t no_packet[MAX_FILES]={0};
1973     int no_packet_count=0;
1974     int nb_frame_threshold[AVMEDIA_TYPE_NB]={0};
1975     int nb_streams[AVMEDIA_TYPE_NB]={0};
1976
1977     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1978     if (!file_table)
1979         goto fail;
1980
1981     /* input stream init */
1982     j = 0;
1983     for(i=0;i<nb_input_files;i++) {
1984         is = input_files[i];
1985         file_table[i].ist_index = j;
1986         file_table[i].nb_streams = is->nb_streams;
1987         j += is->nb_streams;
1988     }
1989     nb_istreams = j;
1990
1991     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1992     if (!ist_table)
1993         goto fail;
1994
1995     for(i=0;i<nb_istreams;i++) {
1996         ist = av_mallocz(sizeof(AVInputStream));
1997         if (!ist)
1998             goto fail;
1999         ist_table[i] = ist;
2000     }
2001     j = 0;
2002     for(i=0;i<nb_input_files;i++) {
2003         is = input_files[i];
2004         for(k=0;k<is->nb_streams;k++) {
2005             ist = ist_table[j++];
2006             ist->st = is->streams[k];
2007             ist->file_index = i;
2008             ist->index = k;
2009             ist->discard = 1; /* the stream is discarded by default
2010                                  (changed later) */
2011
2012             if (rate_emu) {
2013                 ist->start = av_gettime();
2014             }
2015         }
2016     }
2017
2018     /* output stream init */
2019     nb_ostreams = 0;
2020     for(i=0;i<nb_output_files;i++) {
2021         os = output_files[i];
2022         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
2023             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2024             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2025             ret = AVERROR(EINVAL);
2026             goto fail;
2027         }
2028         nb_ostreams += os->nb_streams;
2029     }
2030     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2031         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2032         ret = AVERROR(EINVAL);
2033         goto fail;
2034     }
2035
2036     /* Sanity check the mapping args -- do the input files & streams exist? */
2037     for(i=0;i<nb_stream_maps;i++) {
2038         int fi = stream_maps[i].file_index;
2039         int si = stream_maps[i].stream_index;
2040
2041         if (fi < 0 || fi > nb_input_files - 1 ||
2042             si < 0 || si > file_table[fi].nb_streams - 1) {
2043             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2044             ret = AVERROR(EINVAL);
2045             goto fail;
2046         }
2047         fi = stream_maps[i].sync_file_index;
2048         si = stream_maps[i].sync_stream_index;
2049         if (fi < 0 || fi > nb_input_files - 1 ||
2050             si < 0 || si > file_table[fi].nb_streams - 1) {
2051             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2052             ret = AVERROR(EINVAL);
2053             goto fail;
2054         }
2055     }
2056
2057     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2058     if (!ost_table)
2059         goto fail;
2060
2061     for(k=0;k<nb_output_files;k++) {
2062         os = output_files[k];
2063         for(i=0;i<os->nb_streams;i++,n++) {
2064             nb_streams[os->streams[i]->codec->codec_type]++;
2065         }
2066     }
2067     for(step=1<<30; step; step>>=1){
2068         int found_streams[AVMEDIA_TYPE_NB]={0};
2069         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2070             nb_frame_threshold[j] += step;
2071
2072         for(j=0; j<nb_istreams; j++) {
2073             int skip=0;
2074             ist = ist_table[j];
2075             if(opt_programid){
2076                 int pi,si;
2077                 AVFormatContext *f= input_files[ ist->file_index ];
2078                 skip=1;
2079                 for(pi=0; pi<f->nb_programs; pi++){
2080                     AVProgram *p= f->programs[pi];
2081                     if(p->id == opt_programid)
2082                         for(si=0; si<p->nb_stream_indexes; si++){
2083                             if(f->streams[ p->stream_index[si] ] == ist->st)
2084                                 skip=0;
2085                         }
2086                 }
2087             }
2088             if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip
2089                 && nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames){
2090                 found_streams[ist->st->codec->codec_type]++;
2091             }
2092         }
2093         for(j=0; j<AVMEDIA_TYPE_NB; j++)
2094             if(found_streams[j] < nb_streams[j])
2095                 nb_frame_threshold[j] -= step;
2096     }
2097     n = 0;
2098     for(k=0;k<nb_output_files;k++) {
2099         os = output_files[k];
2100         for(i=0;i<os->nb_streams;i++,n++) {
2101             int found;
2102             ost = ost_table[n] = output_streams_for_file[k][i];
2103             ost->st = os->streams[i];
2104             if (nb_stream_maps > 0) {
2105                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2106                     stream_maps[n].stream_index;
2107
2108                 /* Sanity check that the stream types match */
2109                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2110                     int i= ost->file_index;
2111                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2112                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2113                         stream_maps[n].file_index, stream_maps[n].stream_index,
2114                         ost->file_index, ost->index);
2115                     ffmpeg_exit(1);
2116                 }
2117
2118             } else {
2119                 /* get corresponding input stream index : we select the first one with the right type */
2120                 found = 0;
2121                 for(j=0;j<nb_istreams;j++) {
2122                     int skip=0;
2123                     ist = ist_table[j];
2124                     if(opt_programid){
2125                         int pi,si;
2126                         AVFormatContext *f= input_files[ ist->file_index ];
2127                         skip=1;
2128                         for(pi=0; pi<f->nb_programs; pi++){
2129                             AVProgram *p= f->programs[pi];
2130                             if(p->id == opt_programid)
2131                                 for(si=0; si<p->nb_stream_indexes; si++){
2132                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2133                                         skip=0;
2134                                 }
2135                         }
2136                     }
2137                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2138                         ist->st->codec->codec_type == ost->st->codec->codec_type &&
2139                         nb_frame_threshold[ist->st->codec->codec_type] <= ist->st->codec_info_nb_frames) {
2140                             ost->source_index = j;
2141                             found = 1;
2142                             break;
2143                     }
2144                 }
2145
2146                 if (!found) {
2147                     if(! opt_programid) {
2148                         /* try again and reuse existing stream */
2149                         for(j=0;j<nb_istreams;j++) {
2150                             ist = ist_table[j];
2151                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2152                                 && ist->st->discard != AVDISCARD_ALL) {
2153                                 ost->source_index = j;
2154                                 found = 1;
2155                             }
2156                         }
2157                     }
2158                     if (!found) {
2159                         int i= ost->file_index;
2160                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2161                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2162                                 ost->file_index, ost->index);
2163                         ffmpeg_exit(1);
2164                     }
2165                 }
2166             }
2167             ist = ist_table[ost->source_index];
2168             ist->discard = 0;
2169             ost->sync_ist = (nb_stream_maps > 0) ?
2170                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2171                          stream_maps[n].sync_stream_index] : ist;
2172         }
2173     }
2174
2175     /* for each output stream, we compute the right encoding parameters */
2176     for(i=0;i<nb_ostreams;i++) {
2177         ost = ost_table[i];
2178         os = output_files[ost->file_index];
2179         ist = ist_table[ost->source_index];
2180
2181         codec = ost->st->codec;
2182         icodec = ist->st->codec;
2183
2184         if (metadata_streams_autocopy)
2185             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2186                              AV_METADATA_DONT_OVERWRITE);
2187
2188         ost->st->disposition = ist->st->disposition;
2189         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2190         codec->chroma_sample_location = icodec->chroma_sample_location;
2191
2192         if (ost->st->stream_copy) {
2193             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2194
2195             if (extra_size > INT_MAX)
2196                 goto fail;
2197
2198             /* if stream_copy is selected, no need to decode or encode */
2199             codec->codec_id = icodec->codec_id;
2200             codec->codec_type = icodec->codec_type;
2201
2202             if(!codec->codec_tag){
2203                 if(   !os->oformat->codec_tag
2204                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2205                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2206                     codec->codec_tag = icodec->codec_tag;
2207             }
2208
2209             codec->bit_rate = icodec->bit_rate;
2210             codec->rc_max_rate    = icodec->rc_max_rate;
2211             codec->rc_buffer_size = icodec->rc_buffer_size;
2212             codec->extradata= av_mallocz(extra_size);
2213             if (!codec->extradata)
2214                 goto fail;
2215             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2216             codec->extradata_size= icodec->extradata_size;
2217             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){
2218                 codec->time_base = icodec->time_base;
2219                 codec->time_base.num *= icodec->ticks_per_frame;
2220                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2221                           codec->time_base.num, codec->time_base.den, INT_MAX);
2222             }else
2223                 codec->time_base = ist->st->time_base;
2224             switch(codec->codec_type) {
2225             case AVMEDIA_TYPE_AUDIO:
2226                 if(audio_volume != 256) {
2227                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2228                     ffmpeg_exit(1);
2229                 }
2230                 codec->channel_layout = icodec->channel_layout;
2231                 codec->sample_rate = icodec->sample_rate;
2232                 codec->channels = icodec->channels;
2233                 codec->frame_size = icodec->frame_size;
2234                 codec->audio_service_type = icodec->audio_service_type;
2235                 codec->block_align= icodec->block_align;
2236                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2237                     codec->block_align= 0;
2238                 if(codec->codec_id == CODEC_ID_AC3)
2239                     codec->block_align= 0;
2240                 break;
2241             case AVMEDIA_TYPE_VIDEO:
2242                 codec->pix_fmt = icodec->pix_fmt;
2243                 codec->width = icodec->width;
2244                 codec->height = icodec->height;
2245                 codec->has_b_frames = icodec->has_b_frames;
2246                 break;
2247             case AVMEDIA_TYPE_SUBTITLE:
2248                 codec->width = icodec->width;
2249                 codec->height = icodec->height;
2250                 break;
2251             default:
2252                 abort();
2253             }
2254         } else {
2255             switch(codec->codec_type) {
2256             case AVMEDIA_TYPE_AUDIO:
2257                 ost->fifo= av_fifo_alloc(1024);
2258                 if(!ost->fifo)
2259                     goto fail;
2260                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2261                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2262                 icodec->request_channels = codec->channels;
2263                 ist->decoding_needed = 1;
2264                 ost->encoding_needed = 1;
2265                 ost->resample_sample_fmt  = icodec->sample_fmt;
2266                 ost->resample_sample_rate = icodec->sample_rate;
2267                 ost->resample_channels    = icodec->channels;
2268                 break;
2269             case AVMEDIA_TYPE_VIDEO:
2270                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2271                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2272                     ffmpeg_exit(1);
2273                 }
2274                 ost->video_resample = (codec->width != icodec->width   ||
2275                                        codec->height != icodec->height ||
2276                         (codec->pix_fmt != icodec->pix_fmt));
2277                 if (ost->video_resample) {
2278 #if !CONFIG_AVFILTER
2279                     avcodec_get_frame_defaults(&ost->pict_tmp);
2280                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2281                                          codec->width, codec->height)) {
2282                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2283                         ffmpeg_exit(1);
2284                     }
2285                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2286                     ost->img_resample_ctx = sws_getContext(
2287                         icodec->width,
2288                         icodec->height,
2289                             icodec->pix_fmt,
2290                             codec->width,
2291                             codec->height,
2292                             codec->pix_fmt,
2293                             sws_flags, NULL, NULL, NULL);
2294                     if (ost->img_resample_ctx == NULL) {
2295                         fprintf(stderr, "Cannot get resampling context\n");
2296                         ffmpeg_exit(1);
2297                     }
2298
2299                     ost->original_height = icodec->height;
2300                     ost->original_width  = icodec->width;
2301 #endif
2302                     codec->bits_per_raw_sample= frame_bits_per_raw_sample;
2303                 }
2304                 ost->resample_height = icodec->height;
2305                 ost->resample_width  = icodec->width;
2306                 ost->resample_pix_fmt= icodec->pix_fmt;
2307                 ost->encoding_needed = 1;
2308                 ist->decoding_needed = 1;
2309
2310 #if CONFIG_AVFILTER
2311                 if (configure_filters(ist, ost)) {
2312                     fprintf(stderr, "Error opening filters!\n");
2313                     exit(1);
2314                 }
2315 #endif
2316                 break;
2317             case AVMEDIA_TYPE_SUBTITLE:
2318                 ost->encoding_needed = 1;
2319                 ist->decoding_needed = 1;
2320                 break;
2321             default:
2322                 abort();
2323                 break;
2324             }
2325             /* two pass mode */
2326             if (ost->encoding_needed &&
2327                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2328                 char logfilename[1024];
2329                 FILE *f;
2330
2331                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2332                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2333                          i);
2334                 if (codec->flags & CODEC_FLAG_PASS1) {
2335                     f = fopen(logfilename, "wb");
2336                     if (!f) {
2337                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2338                         ffmpeg_exit(1);
2339                     }
2340                     ost->logfile = f;
2341                 } else {
2342                     char  *logbuffer;
2343                     size_t logbuffer_size;
2344                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2345                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2346                         ffmpeg_exit(1);
2347                     }
2348                     codec->stats_in = logbuffer;
2349                 }
2350             }
2351         }
2352         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2353             /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
2354             int size= codec->width * codec->height;
2355             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 1664);
2356         }
2357     }
2358
2359     if (!bit_buffer)
2360         bit_buffer = av_malloc(bit_buffer_size);
2361     if (!bit_buffer) {
2362         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2363                 bit_buffer_size);
2364         ret = AVERROR(ENOMEM);
2365         goto fail;
2366     }
2367
2368     /* open each encoder */
2369     for(i=0;i<nb_ostreams;i++) {
2370         ost = ost_table[i];
2371         if (ost->encoding_needed) {
2372             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2373             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2374             if (!codec)
2375                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2376             if (!codec) {
2377                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2378                          ost->st->codec->codec_id, ost->file_index, ost->index);
2379                 ret = AVERROR(EINVAL);
2380                 goto dump_format;
2381             }
2382             if (dec->subtitle_header) {
2383                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2384                 if (!ost->st->codec->subtitle_header) {
2385                     ret = AVERROR(ENOMEM);
2386                     goto dump_format;
2387                 }
2388                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2389                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2390             }
2391             if (avcodec_open(ost->st->codec, codec) < 0) {
2392                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2393                         ost->file_index, ost->index);
2394                 ret = AVERROR(EINVAL);
2395                 goto dump_format;
2396             }
2397             extra_size += ost->st->codec->extradata_size;
2398         }
2399     }
2400
2401     /* open each decoder */
2402     for(i=0;i<nb_istreams;i++) {
2403         ist = ist_table[i];
2404         if (ist->decoding_needed) {
2405             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2406             if (!codec)
2407                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2408             if (!codec) {
2409                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2410                         ist->st->codec->codec_id, ist->file_index, ist->index);
2411                 ret = AVERROR(EINVAL);
2412                 goto dump_format;
2413             }
2414             if (avcodec_open(ist->st->codec, codec) < 0) {
2415                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2416                         ist->file_index, ist->index);
2417                 ret = AVERROR(EINVAL);
2418                 goto dump_format;
2419             }
2420             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2421             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2422         }
2423     }
2424
2425     /* init pts */
2426     for(i=0;i<nb_istreams;i++) {
2427         AVStream *st;
2428         ist = ist_table[i];
2429         st= ist->st;
2430         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2431         ist->next_pts = AV_NOPTS_VALUE;
2432         ist->is_start = 1;
2433     }
2434
2435     /* set meta data information from input file if required */
2436     for (i=0;i<nb_meta_data_maps;i++) {
2437         AVFormatContext *files[2];
2438         AVMetadata      **meta[2];
2439         int j;
2440
2441 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2442         if ((index) < 0 || (index) >= (nb_elems)) {\
2443             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2444                      (desc), (index));\
2445             ret = AVERROR(EINVAL);\
2446             goto dump_format;\
2447         }
2448
2449         int out_file_index = meta_data_maps[i][0].file;
2450         int in_file_index = meta_data_maps[i][1].file;
2451         if (in_file_index < 0 || out_file_index < 0)
2452             continue;
2453         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2454         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2455
2456         files[0] = output_files[out_file_index];
2457         files[1] = input_files[in_file_index];
2458
2459         for (j = 0; j < 2; j++) {
2460             AVMetaDataMap *map = &meta_data_maps[i][j];
2461
2462             switch (map->type) {
2463             case 'g':
2464                 meta[j] = &files[j]->metadata;
2465                 break;
2466             case 's':
2467                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2468                 meta[j] = &files[j]->streams[map->index]->metadata;
2469                 break;
2470             case 'c':
2471                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2472                 meta[j] = &files[j]->chapters[map->index]->metadata;
2473                 break;
2474             case 'p':
2475                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2476                 meta[j] = &files[j]->programs[map->index]->metadata;
2477                 break;
2478             }
2479         }
2480
2481         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2482     }
2483
2484     /* copy global metadata by default */
2485     if (metadata_global_autocopy) {
2486
2487         for (i = 0; i < nb_output_files; i++)
2488             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2489                              AV_METADATA_DONT_OVERWRITE);
2490     }
2491
2492     /* copy chapters according to chapter maps */
2493     for (i = 0; i < nb_chapter_maps; i++) {
2494         int infile  = chapter_maps[i].in_file;
2495         int outfile = chapter_maps[i].out_file;
2496
2497         if (infile < 0 || outfile < 0)
2498             continue;
2499         if (infile >= nb_input_files) {
2500             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2501             ret = AVERROR(EINVAL);
2502             goto dump_format;
2503         }
2504         if (outfile >= nb_output_files) {
2505             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2506             ret = AVERROR(EINVAL);
2507             goto dump_format;
2508         }
2509         copy_chapters(infile, outfile);
2510     }
2511
2512     /* copy chapters from the first input file that has them*/
2513     if (!nb_chapter_maps)
2514         for (i = 0; i < nb_input_files; i++) {
2515             if (!input_files[i]->nb_chapters)
2516                 continue;
2517
2518             for (j = 0; j < nb_output_files; j++)
2519                 if ((ret = copy_chapters(i, j)) < 0)
2520                     goto dump_format;
2521             break;
2522         }
2523
2524     /* open files and write file headers */
2525     for(i=0;i<nb_output_files;i++) {
2526         os = output_files[i];
2527         if (av_write_header(os) < 0) {
2528             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2529             ret = AVERROR(EINVAL);
2530             goto dump_format;
2531         }
2532         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2533             want_sdp = 0;
2534         }
2535     }
2536
2537  dump_format:
2538     /* dump the file output parameters - cannot be done before in case
2539        of stream copy */
2540     for(i=0;i<nb_output_files;i++) {
2541         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2542     }
2543
2544     /* dump the stream mapping */
2545     if (verbose >= 0) {
2546         fprintf(stderr, "Stream mapping:\n");
2547         for(i=0;i<nb_ostreams;i++) {
2548             ost = ost_table[i];
2549             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2550                     ist_table[ost->source_index]->file_index,
2551                     ist_table[ost->source_index]->index,
2552                     ost->file_index,
2553                     ost->index);
2554             if (ost->sync_ist != ist_table[ost->source_index])
2555                 fprintf(stderr, " [sync #%d.%d]",
2556                         ost->sync_ist->file_index,
2557                         ost->sync_ist->index);
2558             fprintf(stderr, "\n");
2559         }
2560     }
2561
2562     if (ret) {
2563         fprintf(stderr, "%s\n", error);
2564         goto fail;
2565     }
2566
2567     if (want_sdp) {
2568         print_sdp(output_files, nb_output_files);
2569     }
2570
2571     if (!using_stdin) {
2572         if(verbose >= 0)
2573             fprintf(stderr, "Press [q] to stop encoding\n");
2574         avio_set_interrupt_cb(decode_interrupt_cb);
2575     }
2576     term_init();
2577
2578     timer_start = av_gettime();
2579
2580     for(; received_sigterm == 0;) {
2581         int file_index, ist_index;
2582         AVPacket pkt;
2583         double ipts_min;
2584         double opts_min;
2585
2586     redo:
2587         ipts_min= 1e100;
2588         opts_min= 1e100;
2589         /* if 'q' pressed, exits */
2590         if (!using_stdin) {
2591             if (q_pressed)
2592                 break;
2593             /* read_key() returns 0 on EOF */
2594             key = read_key();
2595             if (key == 'q')
2596                 break;
2597         }
2598
2599         /* select the stream that we must read now by looking at the
2600            smallest output pts */
2601         file_index = -1;
2602         for(i=0;i<nb_ostreams;i++) {
2603             double ipts, opts;
2604             ost = ost_table[i];
2605             os = output_files[ost->file_index];
2606             ist = ist_table[ost->source_index];
2607             if(ist->is_past_recording_time || no_packet[ist->file_index])
2608                 continue;
2609                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2610             ipts = (double)ist->pts;
2611             if (!file_table[ist->file_index].eof_reached){
2612                 if(ipts < ipts_min) {
2613                     ipts_min = ipts;
2614                     if(input_sync ) file_index = ist->file_index;
2615                 }
2616                 if(opts < opts_min) {
2617                     opts_min = opts;
2618                     if(!input_sync) file_index = ist->file_index;
2619                 }
2620             }
2621             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2622                 file_index= -1;
2623                 break;
2624             }
2625         }
2626         /* if none, if is finished */
2627         if (file_index < 0) {
2628             if(no_packet_count){
2629                 no_packet_count=0;
2630                 memset(no_packet, 0, sizeof(no_packet));
2631                 usleep(10000);
2632                 continue;
2633             }
2634             break;
2635         }
2636
2637         /* finish if limit size exhausted */
2638         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2639             break;
2640
2641         /* read a frame from it and output it in the fifo */
2642         is = input_files[file_index];
2643         ret= av_read_frame(is, &pkt);
2644         if(ret == AVERROR(EAGAIN)){
2645             no_packet[file_index]=1;
2646             no_packet_count++;
2647             continue;
2648         }
2649         if (ret < 0) {
2650             file_table[file_index].eof_reached = 1;
2651             if (opt_shortest)
2652                 break;
2653             else
2654                 continue;
2655         }
2656
2657         no_packet_count=0;
2658         memset(no_packet, 0, sizeof(no_packet));
2659
2660         if (do_pkt_dump) {
2661             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2662                              is->streams[pkt.stream_index]);
2663         }
2664         /* the following test is needed in case new streams appear
2665            dynamically in stream : we ignore them */
2666         if (pkt.stream_index >= file_table[file_index].nb_streams)
2667             goto discard_packet;
2668         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2669         ist = ist_table[ist_index];
2670         if (ist->discard)
2671             goto discard_packet;
2672
2673         if (pkt.dts != AV_NOPTS_VALUE)
2674             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2675         if (pkt.pts != AV_NOPTS_VALUE)
2676             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2677
2678         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2679             && input_files_ts_scale[file_index][pkt.stream_index]){
2680             if(pkt.pts != AV_NOPTS_VALUE)
2681                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2682             if(pkt.dts != AV_NOPTS_VALUE)
2683                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2684         }
2685
2686 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2687         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2688             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2689             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2690             int64_t delta= pkt_dts - ist->next_pts;
2691             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2692                 input_files_ts_offset[ist->file_index]-= delta;
2693                 if (verbose > 2)
2694                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2695                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2696                 if(pkt.pts != AV_NOPTS_VALUE)
2697                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2698             }
2699         }
2700
2701         /* finish if recording time exhausted */
2702         if (recording_time != INT64_MAX &&
2703             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2704             ist->is_past_recording_time = 1;
2705             goto discard_packet;
2706         }
2707
2708         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2709         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2710
2711             if (verbose >= 0)
2712                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2713                         ist->file_index, ist->index);
2714             if (exit_on_error)
2715                 ffmpeg_exit(1);
2716             av_free_packet(&pkt);
2717             goto redo;
2718         }
2719
2720     discard_packet:
2721         av_free_packet(&pkt);
2722
2723         /* dump report by using the output first video and audio streams */
2724         print_report(output_files, ost_table, nb_ostreams, 0);
2725     }
2726
2727     /* at the end of stream, we must flush the decoder buffers */
2728     for(i=0;i<nb_istreams;i++) {
2729         ist = ist_table[i];
2730         if (ist->decoding_needed) {
2731             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2732         }
2733     }
2734
2735     term_exit();
2736
2737     /* write the trailer if needed and close file */
2738     for(i=0;i<nb_output_files;i++) {
2739         os = output_files[i];
2740         av_write_trailer(os);
2741     }
2742
2743     /* dump report by using the first video and audio streams */
2744     print_report(output_files, ost_table, nb_ostreams, 1);
2745
2746     /* close each encoder */
2747     for(i=0;i<nb_ostreams;i++) {
2748         ost = ost_table[i];
2749         if (ost->encoding_needed) {
2750             av_freep(&ost->st->codec->stats_in);
2751             avcodec_close(ost->st->codec);
2752         }
2753 #if CONFIG_AVFILTER
2754         avfilter_graph_free(&ost->graph);
2755 #endif
2756     }
2757
2758     /* close each decoder */
2759     for(i=0;i<nb_istreams;i++) {
2760         ist = ist_table[i];
2761         if (ist->decoding_needed) {
2762             avcodec_close(ist->st->codec);
2763         }
2764     }
2765
2766     /* finished ! */
2767     ret = 0;
2768
2769  fail:
2770     av_freep(&bit_buffer);
2771     av_free(file_table);
2772
2773     if (ist_table) {
2774         for(i=0;i<nb_istreams;i++) {
2775             ist = ist_table[i];
2776             av_free(ist);
2777         }
2778         av_free(ist_table);
2779     }
2780     if (ost_table) {
2781         for(i=0;i<nb_ostreams;i++) {
2782             ost = ost_table[i];
2783             if (ost) {
2784                 if (ost->st->stream_copy)
2785                     av_freep(&ost->st->codec->extradata);
2786                 if (ost->logfile) {
2787                     fclose(ost->logfile);
2788                     ost->logfile = NULL;
2789                 }
2790                 av_fifo_free(ost->fifo); /* works even if fifo is not
2791                                              initialized but set to zero */
2792                 av_freep(&ost->st->codec->subtitle_header);
2793                 av_free(ost->pict_tmp.data[0]);
2794                 av_free(ost->forced_kf_pts);
2795                 if (ost->video_resample)
2796                     sws_freeContext(ost->img_resample_ctx);
2797                 if (ost->resample)
2798                     audio_resample_close(ost->resample);
2799                 if (ost->reformat_ctx)
2800                     av_audio_convert_free(ost->reformat_ctx);
2801                 av_free(ost);
2802             }
2803         }
2804         av_free(ost_table);
2805     }
2806     return ret;
2807 }
2808
2809 static void opt_format(const char *arg)
2810 {
2811     last_asked_format = arg;
2812 }
2813
2814 static void opt_video_rc_override_string(const char *arg)
2815 {
2816     video_rc_override_string = arg;
2817 }
2818
2819 static int opt_me_threshold(const char *opt, const char *arg)
2820 {
2821     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2822     return 0;
2823 }
2824
2825 static int opt_verbose(const char *opt, const char *arg)
2826 {
2827     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2828     return 0;
2829 }
2830
2831 static int opt_frame_rate(const char *opt, const char *arg)
2832 {
2833     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2834         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2835         ffmpeg_exit(1);
2836     }
2837     return 0;
2838 }
2839
2840 static int opt_bitrate(const char *opt, const char *arg)
2841 {
2842     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2843
2844     opt_default(opt, arg);
2845
2846     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2847         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2848
2849     return 0;
2850 }
2851
2852 static int opt_frame_crop(const char *opt, const char *arg)
2853 {
2854     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2855     return AVERROR(EINVAL);
2856 }
2857
2858 static void opt_frame_size(const char *arg)
2859 {
2860     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2861         fprintf(stderr, "Incorrect frame size\n");
2862         ffmpeg_exit(1);
2863     }
2864 }
2865
2866 static int opt_pad(const char *opt, const char *arg) {
2867     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2868     return -1;
2869 }
2870
2871 static void opt_frame_pix_fmt(const char *arg)
2872 {
2873     if (strcmp(arg, "list")) {
2874         frame_pix_fmt = av_get_pix_fmt(arg);
2875         if (frame_pix_fmt == PIX_FMT_NONE) {
2876             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2877             ffmpeg_exit(1);
2878         }
2879     } else {
2880         show_pix_fmts();
2881         ffmpeg_exit(0);
2882     }
2883 }
2884
2885 static void opt_frame_aspect_ratio(const char *arg)
2886 {
2887     int x = 0, y = 0;
2888     double ar = 0;
2889     const char *p;
2890     char *end;
2891
2892     p = strchr(arg, ':');
2893     if (p) {
2894         x = strtol(arg, &end, 10);
2895         if (end == p)
2896             y = strtol(end+1, &end, 10);
2897         if (x > 0 && y > 0)
2898             ar = (double)x / (double)y;
2899     } else
2900         ar = strtod(arg, NULL);
2901
2902     if (!ar) {
2903         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2904         ffmpeg_exit(1);
2905     }
2906     frame_aspect_ratio = ar;
2907     frame_aspect_ratio_override = 1;
2908 }
2909
2910 static int opt_metadata(const char *opt, const char *arg)
2911 {
2912     char *mid= strchr(arg, '=');
2913
2914     if(!mid){
2915         fprintf(stderr, "Missing =\n");
2916         ffmpeg_exit(1);
2917     }
2918     *mid++= 0;
2919
2920     av_metadata_set2(&metadata, arg, mid, 0);
2921
2922     return 0;
2923 }
2924
2925 static void opt_qscale(const char *arg)
2926 {
2927     video_qscale = atof(arg);
2928     if (video_qscale <= 0 ||
2929         video_qscale > 255) {
2930         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2931         ffmpeg_exit(1);
2932     }
2933 }
2934
2935 static void opt_top_field_first(const char *arg)
2936 {
2937     top_field_first= atoi(arg);
2938 }
2939
2940 static int opt_thread_count(const char *opt, const char *arg)
2941 {
2942     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2943 #if !HAVE_THREADS
2944     if (verbose >= 0)
2945         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2946 #endif
2947     return 0;
2948 }
2949
2950 static void opt_audio_sample_fmt(const char *arg)
2951 {
2952     if (strcmp(arg, "list")) {
2953         audio_sample_fmt = av_get_sample_fmt(arg);
2954         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2955             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2956             ffmpeg_exit(1);
2957         }
2958     } else {
2959         int i;
2960         char fmt_str[128];
2961         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2962             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2963         ffmpeg_exit(0);
2964     }
2965 }
2966
2967 static int opt_audio_rate(const char *opt, const char *arg)
2968 {
2969     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2970     return 0;
2971 }
2972
2973 static int opt_audio_channels(const char *opt, const char *arg)
2974 {
2975     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2976     return 0;
2977 }
2978
2979 static void opt_video_channel(const char *arg)
2980 {
2981     video_channel = strtol(arg, NULL, 0);
2982 }
2983
2984 static void opt_video_standard(const char *arg)
2985 {
2986     video_standard = av_strdup(arg);
2987 }
2988
2989 static void opt_codec(int *pstream_copy, char **pcodec_name,
2990                       int codec_type, const char *arg)
2991 {
2992     av_freep(pcodec_name);
2993     if (!strcmp(arg, "copy")) {
2994         *pstream_copy = 1;
2995     } else {
2996         *pcodec_name = av_strdup(arg);
2997     }
2998 }
2999
3000 static void opt_audio_codec(const char *arg)
3001 {
3002     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
3003 }
3004
3005 static void opt_video_codec(const char *arg)
3006 {
3007     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
3008 }
3009
3010 static void opt_subtitle_codec(const char *arg)
3011 {
3012     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
3013 }
3014
3015 static int opt_codec_tag(const char *opt, const char *arg)
3016 {
3017     char *tail;
3018     uint32_t *codec_tag;
3019
3020     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
3021                 !strcmp(opt, "vtag") ? &video_codec_tag :
3022                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
3023     if (!codec_tag)
3024         return -1;
3025
3026     *codec_tag = strtol(arg, &tail, 0);
3027     if (!tail || *tail)
3028         *codec_tag = AV_RL32(arg);
3029
3030     return 0;
3031 }
3032
3033 static void opt_map(const char *arg)
3034 {
3035     AVStreamMap *m;
3036     char *p;
3037
3038     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
3039     m = &stream_maps[nb_stream_maps-1];
3040
3041     m->file_index = strtol(arg, &p, 0);
3042     if (*p)
3043         p++;
3044
3045     m->stream_index = strtol(p, &p, 0);
3046     if (*p) {
3047         p++;
3048         m->sync_file_index = strtol(p, &p, 0);
3049         if (*p)
3050             p++;
3051         m->sync_stream_index = strtol(p, &p, 0);
3052     } else {
3053         m->sync_file_index = m->file_index;
3054         m->sync_stream_index = m->stream_index;
3055     }
3056 }
3057
3058 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3059 {
3060     *endptr = arg;
3061     if (*arg == ',') {
3062         *type = *(++arg);
3063         switch (*arg) {
3064         case 'g':
3065             break;
3066         case 's':
3067         case 'c':
3068         case 'p':
3069             *index = strtol(++arg, endptr, 0);
3070             break;
3071         default:
3072             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3073             ffmpeg_exit(1);
3074         }
3075     } else
3076         *type = 'g';
3077 }
3078
3079 static void opt_map_metadata(const char *arg)
3080 {
3081     AVMetaDataMap *m, *m1;
3082     char *p;
3083
3084     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3085                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3086
3087     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3088     m->file = strtol(arg, &p, 0);
3089     parse_meta_type(p, &m->type, &m->index, &p);
3090     if (*p)
3091         p++;
3092
3093     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3094     m1->file = strtol(p, &p, 0);
3095     parse_meta_type(p, &m1->type, &m1->index, &p);
3096
3097     if (m->type == 'g' || m1->type == 'g')
3098         metadata_global_autocopy = 0;
3099     if (m->type == 's' || m1->type == 's')
3100         metadata_streams_autocopy = 0;
3101     if (m->type == 'c' || m1->type == 'c')
3102         metadata_chapters_autocopy = 0;
3103 }
3104
3105 static void opt_map_meta_data(const char *arg)
3106 {
3107     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3108                     "Use -map_metadata instead.\n");
3109     opt_map_metadata(arg);
3110 }
3111
3112 static void opt_map_chapters(const char *arg)
3113 {
3114     AVChapterMap *c;
3115     char *p;
3116
3117     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3118                               nb_chapter_maps + 1);
3119     c = &chapter_maps[nb_chapter_maps - 1];
3120     c->out_file = strtol(arg, &p, 0);
3121     if (*p)
3122         p++;
3123
3124     c->in_file = strtol(p, &p, 0);
3125 }
3126
3127 static void opt_input_ts_scale(const char *arg)
3128 {
3129     unsigned int stream;
3130     double scale;
3131     char *p;
3132
3133     stream = strtol(arg, &p, 0);
3134     if (*p)
3135         p++;
3136     scale= strtod(p, &p);
3137
3138     if(stream >= MAX_STREAMS)
3139         ffmpeg_exit(1);
3140
3141     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3142     input_files_ts_scale[nb_input_files][stream]= scale;
3143 }
3144
3145 static int opt_recording_time(const char *opt, const char *arg)
3146 {
3147     recording_time = parse_time_or_die(opt, arg, 1);
3148     return 0;
3149 }
3150
3151 static int opt_start_time(const char *opt, const char *arg)
3152 {
3153     start_time = parse_time_or_die(opt, arg, 1);
3154     return 0;
3155 }
3156
3157 static int opt_recording_timestamp(const char *opt, const char *arg)
3158 {
3159     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3160     return 0;
3161 }
3162
3163 static int opt_input_ts_offset(const char *opt, const char *arg)
3164 {
3165     input_ts_offset = parse_time_or_die(opt, arg, 1);
3166     return 0;
3167 }
3168
3169 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3170 {
3171     const char *codec_string = encoder ? "encoder" : "decoder";
3172     AVCodec *codec;
3173
3174     if(!name)
3175         return CODEC_ID_NONE;
3176     codec = encoder ?
3177         avcodec_find_encoder_by_name(name) :
3178         avcodec_find_decoder_by_name(name);
3179     if(!codec) {
3180         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3181         ffmpeg_exit(1);
3182     }
3183     if(codec->type != type) {
3184         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3185         ffmpeg_exit(1);
3186     }
3187     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3188        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3189         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3190                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3191                 codec_string, codec->name);
3192         codec = encoder ?
3193             avcodec_find_encoder(codec->id) :
3194             avcodec_find_decoder(codec->id);
3195         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3196             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3197                     codec_string, codec->name);
3198         ffmpeg_exit(1);
3199     }
3200     return codec->id;
3201 }
3202
3203 static void opt_input_file(const char *filename)
3204 {
3205     AVFormatContext *ic;
3206     AVFormatParameters params, *ap = &params;
3207     AVInputFormat *file_iformat = NULL;
3208     int err, i, ret, rfps, rfps_base;
3209     int64_t timestamp;
3210
3211     if (last_asked_format) {
3212         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3213             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3214             ffmpeg_exit(1);
3215         }
3216         last_asked_format = NULL;
3217     }
3218
3219     if (!strcmp(filename, "-"))
3220         filename = "pipe:";
3221
3222     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3223                     !strcmp(filename, "/dev/stdin");
3224
3225     /* get default parameters from command line */
3226     ic = avformat_alloc_context();
3227     if (!ic) {
3228         print_error(filename, AVERROR(ENOMEM));
3229         ffmpeg_exit(1);
3230     }
3231
3232     memset(ap, 0, sizeof(*ap));
3233     ap->prealloced_context = 1;
3234     ap->sample_rate = audio_sample_rate;
3235     ap->channels = audio_channels;
3236     ap->time_base.den = frame_rate.num;
3237     ap->time_base.num = frame_rate.den;
3238     ap->width = frame_width;
3239     ap->height = frame_height;
3240     ap->pix_fmt = frame_pix_fmt;
3241    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3242     ap->channel = video_channel;
3243     ap->standard = video_standard;
3244
3245     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3246
3247     ic->video_codec_id   =
3248         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3249                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3250     ic->audio_codec_id   =
3251         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3252                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3253     ic->subtitle_codec_id=
3254         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3255                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3256     ic->flags |= AVFMT_FLAG_NONBLOCK;
3257
3258     /* open the input file with generic libav function */
3259     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3260     if (err < 0) {
3261         print_error(filename, err);
3262         ffmpeg_exit(1);
3263     }
3264     if(opt_programid) {
3265         int i, j;
3266         int found=0;
3267         for(i=0; i<ic->nb_streams; i++){
3268             ic->streams[i]->discard= AVDISCARD_ALL;
3269         }
3270         for(i=0; i<ic->nb_programs; i++){
3271             AVProgram *p= ic->programs[i];
3272             if(p->id != opt_programid){
3273                 p->discard = AVDISCARD_ALL;
3274             }else{
3275                 found=1;
3276                 for(j=0; j<p->nb_stream_indexes; j++){
3277                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3278                 }
3279             }
3280         }
3281         if(!found){
3282             fprintf(stderr, "Specified program id not found\n");
3283             ffmpeg_exit(1);
3284         }
3285         opt_programid=0;
3286     }
3287
3288     ic->loop_input = loop_input;
3289
3290     /* If not enough info to get the stream parameters, we decode the
3291        first frames to get it. (used in mpeg case for example) */
3292     ret = av_find_stream_info(ic);
3293     if (ret < 0 && verbose >= 0) {
3294         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3295         av_close_input_file(ic);
3296         ffmpeg_exit(1);
3297     }
3298
3299     timestamp = start_time;
3300     /* add the stream start time */
3301     if (ic->start_time != AV_NOPTS_VALUE)
3302         timestamp += ic->start_time;
3303
3304     /* if seeking requested, we execute it */
3305     if (start_time != 0) {
3306         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3307         if (ret < 0) {
3308             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3309                     filename, (double)timestamp / AV_TIME_BASE);
3310         }
3311         /* reset seek info */
3312         start_time = 0;
3313     }
3314
3315     /* update the current parameters so that they match the one of the input stream */
3316     for(i=0;i<ic->nb_streams;i++) {
3317         AVStream *st = ic->streams[i];
3318         AVCodecContext *dec = st->codec;
3319         dec->thread_count = thread_count;
3320         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3321         switch (dec->codec_type) {
3322         case AVMEDIA_TYPE_AUDIO:
3323             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3324             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3325             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3326             channel_layout    = dec->channel_layout;
3327             audio_channels    = dec->channels;
3328             audio_sample_rate = dec->sample_rate;
3329             audio_sample_fmt  = dec->sample_fmt;
3330             if(audio_disable)
3331                 st->discard= AVDISCARD_ALL;
3332             /* Note that av_find_stream_info can add more streams, and we
3333              * currently have no chance of setting up lowres decoding
3334              * early enough for them. */
3335             if (dec->lowres)
3336                 audio_sample_rate >>= dec->lowres;
3337             break;
3338         case AVMEDIA_TYPE_VIDEO:
3339             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3340             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3341             frame_height = dec->height;
3342             frame_width  = dec->width;
3343             if(ic->streams[i]->sample_aspect_ratio.num)
3344                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3345             else
3346                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3347             frame_aspect_ratio *= (float) dec->width / dec->height;
3348             frame_aspect_ratio_override = 0;
3349             frame_pix_fmt = dec->pix_fmt;
3350             rfps      = ic->streams[i]->r_frame_rate.num;
3351             rfps_base = ic->streams[i]->r_frame_rate.den;
3352             if (dec->lowres) {
3353                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3354                 frame_height >>= dec->lowres;
3355                 frame_width  >>= dec->lowres;
3356                 dec->height = frame_height;
3357                 dec->width  = frame_width;
3358             }
3359             if(me_threshold)
3360                 dec->debug |= FF_DEBUG_MV;
3361
3362             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3363
3364                 if (verbose >= 0)
3365                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3366                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3367
3368                     (float)rfps / rfps_base, rfps, rfps_base);
3369             }
3370             /* update the current frame rate to match the stream frame rate */
3371             frame_rate.num = rfps;
3372             frame_rate.den = rfps_base;
3373
3374             if(video_disable)
3375                 st->discard= AVDISCARD_ALL;
3376             else if(video_discard)
3377                 st->discard= video_discard;
3378             break;
3379         case AVMEDIA_TYPE_DATA:
3380             break;
3381         case AVMEDIA_TYPE_SUBTITLE:
3382             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3383             if(subtitle_disable)
3384                 st->discard = AVDISCARD_ALL;
3385             break;
3386         case AVMEDIA_TYPE_ATTACHMENT:
3387         case AVMEDIA_TYPE_UNKNOWN:
3388             break;
3389         default:
3390             abort();
3391         }
3392     }
3393
3394     input_files[nb_input_files] = ic;
3395     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3396     /* dump the file content */
3397     if (verbose >= 0)
3398         av_dump_format(ic, nb_input_files, filename, 0);
3399
3400     nb_input_files++;
3401
3402     video_channel = 0;
3403
3404     av_freep(&video_codec_name);
3405     av_freep(&audio_codec_name);
3406     av_freep(&subtitle_codec_name);
3407 }
3408
3409 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3410                                          int *has_subtitle_ptr)
3411 {
3412     int has_video, has_audio, has_subtitle, i, j;
3413     AVFormatContext *ic;
3414
3415     has_video = 0;
3416     has_audio = 0;
3417     has_subtitle = 0;
3418     for(j=0;j<nb_input_files;j++) {
3419         ic = input_files[j];
3420         for(i=0;i<ic->nb_streams;i++) {
3421             AVCodecContext *enc = ic->streams[i]->codec;
3422             switch(enc->codec_type) {
3423             case AVMEDIA_TYPE_AUDIO:
3424                 has_audio = 1;
3425                 break;
3426             case AVMEDIA_TYPE_VIDEO:
3427                 has_video = 1;
3428                 break;
3429             case AVMEDIA_TYPE_SUBTITLE:
3430                 has_subtitle = 1;
3431                 break;
3432             case AVMEDIA_TYPE_DATA:
3433             case AVMEDIA_TYPE_ATTACHMENT:
3434             case AVMEDIA_TYPE_UNKNOWN:
3435                 break;
3436             default:
3437                 abort();
3438             }
3439         }
3440     }
3441     *has_video_ptr = has_video;
3442     *has_audio_ptr = has_audio;
3443     *has_subtitle_ptr = has_subtitle;
3444 }
3445
3446 static void new_video_stream(AVFormatContext *oc, int file_idx)
3447 {
3448     AVStream *st;
3449     AVOutputStream *ost;
3450     AVCodecContext *video_enc;
3451     enum CodecID codec_id = CODEC_ID_NONE;
3452     AVCodec *codec= NULL;
3453     int i;
3454
3455     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3456     if (!st) {
3457         fprintf(stderr, "Could not alloc stream\n");
3458         ffmpeg_exit(1);
3459     }
3460     ost = new_output_stream(oc, file_idx);
3461
3462     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3463     if(!video_stream_copy){
3464         if (video_codec_name) {
3465             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3466                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3467             codec = avcodec_find_encoder_by_name(video_codec_name);
3468             output_codecs[nb_output_codecs-1] = codec;
3469         } else {
3470             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3471             codec = avcodec_find_encoder(codec_id);
3472         }
3473 #if CONFIG_AVFILTER
3474         if(frame_aspect_ratio_override){
3475             i = vfilters ? strlen(vfilters) : 0;
3476             vfilters = av_realloc(vfilters, i+100);
3477             snprintf(vfilters+i, 100, "%csetdar=%f\n", i?',':' ', frame_aspect_ratio);
3478             frame_aspect_ratio=0;
3479             frame_aspect_ratio_override=0;
3480         }
3481
3482         ost->avfilter= vfilters;
3483         vfilters= NULL;
3484 #endif
3485     }
3486
3487     avcodec_get_context_defaults3(st->codec, codec);
3488     ost->bitstream_filters = video_bitstream_filters;
3489     video_bitstream_filters= NULL;
3490
3491     st->codec->thread_count= thread_count;
3492
3493     video_enc = st->codec;
3494
3495     if(video_codec_tag)
3496         video_enc->codec_tag= video_codec_tag;
3497
3498     if(   (video_global_header&1)
3499        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3500         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3501         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3502     }
3503     if(video_global_header&2){
3504         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3505         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3506     }
3507
3508     if (video_stream_copy) {
3509         st->stream_copy = 1;
3510         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3511         video_enc->sample_aspect_ratio =
3512         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3513     } else {
3514         const char *p;
3515         int i;
3516         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3517
3518         video_enc->codec_id = codec_id;
3519         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3520
3521         if (codec && codec->supported_framerates && !force_fps)
3522             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3523         video_enc->time_base.den = fps.num;
3524         video_enc->time_base.num = fps.den;
3525
3526         video_enc->width = frame_width;
3527         video_enc->height = frame_height;
3528         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3529         video_enc->pix_fmt = frame_pix_fmt;
3530         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
3531         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3532
3533         choose_pixel_fmt(st, codec);
3534
3535         if (intra_only)
3536             video_enc->gop_size = 0;
3537         if (video_qscale || same_quality) {
3538             video_enc->flags |= CODEC_FLAG_QSCALE;
3539             video_enc->global_quality=
3540                 st->quality = FF_QP2LAMBDA * video_qscale;
3541         }
3542
3543         if(intra_matrix)
3544             video_enc->intra_matrix = intra_matrix;
3545         if(inter_matrix)
3546             video_enc->inter_matrix = inter_matrix;
3547
3548         p= video_rc_override_string;
3549         for(i=0; p; i++){
3550             int start, end, q;
3551             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3552             if(e!=3){
3553                 fprintf(stderr, "error parsing rc_override\n");
3554                 ffmpeg_exit(1);
3555             }
3556             video_enc->rc_override=
3557                 av_realloc(video_enc->rc_override,
3558                            sizeof(RcOverride)*(i+1));
3559             video_enc->rc_override[i].start_frame= start;
3560             video_enc->rc_override[i].end_frame  = end;
3561             if(q>0){
3562                 video_enc->rc_override[i].qscale= q;
3563                 video_enc->rc_override[i].quality_factor= 1.0;
3564             }
3565             else{
3566                 video_enc->rc_override[i].qscale= 0;
3567                 video_enc->rc_override[i].quality_factor= -q/100.0;
3568             }
3569             p= strchr(p, '/');
3570             if(p) p++;
3571         }
3572         video_enc->rc_override_count=i;
3573         if (!video_enc->rc_initial_buffer_occupancy)
3574             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3575         video_enc->me_threshold= me_threshold;
3576         video_enc->intra_dc_precision= intra_dc_precision - 8;
3577
3578         if (do_psnr)
3579             video_enc->flags|= CODEC_FLAG_PSNR;
3580
3581         /* two pass mode */
3582         if (do_pass) {
3583             if (do_pass == 1) {
3584                 video_enc->flags |= CODEC_FLAG_PASS1;
3585             } else {
3586                 video_enc->flags |= CODEC_FLAG_PASS2;
3587             }
3588         }
3589
3590         if (forced_key_frames)
3591             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3592     }
3593     if (video_language) {
3594         av_metadata_set2(&st->metadata, "language", video_language, 0);
3595         av_freep(&video_language);
3596     }
3597
3598     /* reset some key parameters */
3599     video_disable = 0;
3600     av_freep(&video_codec_name);
3601     av_freep(&forced_key_frames);
3602     video_stream_copy = 0;
3603     frame_pix_fmt = PIX_FMT_NONE;
3604 }
3605
3606 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3607 {
3608     AVStream *st;
3609     AVOutputStream *ost;
3610     AVCodec *codec= NULL;
3611     AVCodecContext *audio_enc;
3612     enum CodecID codec_id = CODEC_ID_NONE;
3613
3614     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3615     if (!st) {
3616         fprintf(stderr, "Could not alloc stream\n");
3617         ffmpeg_exit(1);
3618     }
3619     ost = new_output_stream(oc, file_idx);
3620
3621     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3622     if(!audio_stream_copy){
3623         if (audio_codec_name) {
3624             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3625                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3626             codec = avcodec_find_encoder_by_name(audio_codec_name);
3627             output_codecs[nb_output_codecs-1] = codec;
3628         } else {
3629             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3630             codec = avcodec_find_encoder(codec_id);
3631         }
3632     }
3633
3634     avcodec_get_context_defaults3(st->codec, codec);
3635
3636     ost->bitstream_filters = audio_bitstream_filters;
3637     audio_bitstream_filters= NULL;
3638
3639     st->codec->thread_count= thread_count;
3640
3641     audio_enc = st->codec;
3642     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3643
3644     if(audio_codec_tag)
3645         audio_enc->codec_tag= audio_codec_tag;
3646
3647     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3648         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3649         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3650     }
3651     if (audio_stream_copy) {
3652         st->stream_copy = 1;
3653         audio_enc->channels = audio_channels;
3654         audio_enc->sample_rate = audio_sample_rate;
3655     } else {
3656         audio_enc->codec_id = codec_id;
3657         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3658
3659         if (audio_qscale > QSCALE_NONE) {