Add missing CONFIG_AVFILTER check.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; 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 "libavutil/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 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_KBHIT
73 #include <conio.h>
74 #endif
75 #include <time.h>
76
77 #include "cmdutils.h"
78
79 #include "libavutil/avassert.h"
80
81 const char program_name[] = "ffmpeg";
82 const int program_birth_year = 2000;
83
84 /* select an input stream for an output stream */
85 typedef struct AVStreamMap {
86     int file_index;
87     int stream_index;
88     int sync_file_index;
89     int sync_stream_index;
90 } AVStreamMap;
91
92 /**
93  * select an input file for an output file
94  */
95 typedef struct AVMetaDataMap {
96     int  file;      //< file index
97     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
98     int  index;     //< stream/chapter/program number
99 } AVMetaDataMap;
100
101 typedef struct AVChapterMap {
102     int in_file;
103     int out_file;
104 } AVChapterMap;
105
106 static const OptionDef options[];
107
108 #define MAX_FILES 100
109 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
110
111 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
112
113 static const char *last_asked_format = NULL;
114 static AVFormatContext *input_files[MAX_FILES];
115 static int64_t input_files_ts_offset[MAX_FILES];
116 static double *input_files_ts_scale[MAX_FILES] = {NULL};
117 static AVCodec **input_codecs = NULL;
118 static int nb_input_files = 0;
119 static int nb_input_codecs = 0;
120 static int nb_input_files_ts_scale[MAX_FILES] = {0};
121
122 static AVFormatContext *output_files[MAX_FILES];
123 static AVCodec **output_codecs = NULL;
124 static int nb_output_files = 0;
125 static int nb_output_codecs = 0;
126
127 static AVStreamMap *stream_maps = NULL;
128 static int nb_stream_maps;
129
130 /* first item specifies output metadata, second is input */
131 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
132 static int nb_meta_data_maps;
133 static int metadata_global_autocopy   = 1;
134 static int metadata_streams_autocopy  = 1;
135 static int metadata_chapters_autocopy = 1;
136
137 static AVChapterMap *chapter_maps = NULL;
138 static int nb_chapter_maps;
139
140 /* indexed by output file stream index */
141 static int *streamid_map = NULL;
142 static int nb_streamid_map = 0;
143
144 static int frame_width  = 0;
145 static int frame_height = 0;
146 static float frame_aspect_ratio = 0;
147 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 static AVFilterGraph *graph = NULL;
171 #endif
172
173 static int intra_only = 0;
174 static int audio_sample_rate = 44100;
175 static int64_t channel_layout = 0;
176 #define QSCALE_NONE -99999
177 static float audio_qscale = QSCALE_NONE;
178 static int audio_disable = 0;
179 static int audio_channels = 1;
180 static char  *audio_codec_name = NULL;
181 static unsigned int audio_codec_tag = 0;
182 static char *audio_language = NULL;
183
184 static int subtitle_disable = 0;
185 static char *subtitle_codec_name = NULL;
186 static char *subtitle_language = NULL;
187 static unsigned int subtitle_codec_tag = 0;
188
189 static int data_disable = 0;
190 static char *data_codec_name = NULL;
191 static unsigned int data_codec_tag = 0;
192
193 static float mux_preload= 0.5;
194 static float mux_max_delay= 0.7;
195
196 static int64_t recording_time = INT64_MAX;
197 static int64_t start_time = 0;
198 static int64_t recording_timestamp = 0;
199 static int64_t input_ts_offset = 0;
200 static int file_overwrite = 0;
201 static AVMetadata *metadata;
202 static int do_benchmark = 0;
203 static int do_hex_dump = 0;
204 static int do_pkt_dump = 0;
205 static int do_psnr = 0;
206 static int do_pass = 0;
207 static char *pass_logfilename_prefix = NULL;
208 static int audio_stream_copy = 0;
209 static int video_stream_copy = 0;
210 static int subtitle_stream_copy = 0;
211 static int data_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static int64_t timer_start;
249
250 static uint8_t *audio_buf;
251 static uint8_t *audio_out;
252 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
253
254 static short *samples;
255
256 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
257 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
259
260 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
261
262 struct AVInputStream;
263
264 typedef struct AVOutputStream {
265     int file_index;          /* file index */
266     int index;               /* stream index in the output file */
267     int source_index;        /* AVInputStream index */
268     AVStream *st;            /* stream in the output file */
269     int encoding_needed;     /* true if encoding needed for this stream */
270     int frame_number;
271     /* input pts and corresponding output pts
272        for A/V sync */
273     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
274     struct AVInputStream *sync_ist; /* input stream to sync against */
275     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
276     AVBitStreamFilterContext *bitstream_filters;
277     /* video only */
278     int video_resample;
279     AVFrame pict_tmp;      /* temporary image for resampling */
280     struct SwsContext *img_resample_ctx; /* for image resampling */
281     int resample_height;
282     int resample_width;
283     int resample_pix_fmt;
284
285     /* full frame size of first frame */
286     int original_height;
287     int original_width;
288
289     /* forced key frames */
290     int64_t *forced_kf_pts;
291     int forced_kf_count;
292     int forced_kf_index;
293
294     /* audio only */
295     int audio_resample;
296     ReSampleContext *resample; /* for audio resampling */
297     int resample_sample_fmt;
298     int resample_channels;
299     int resample_sample_rate;
300     int reformat_pair;
301     AVAudioConvert *reformat_ctx;
302     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
303     FILE *logfile;
304
305    int sws_flags;
306 } AVOutputStream;
307
308 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
309 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
310
311 typedef struct AVInputStream {
312     int file_index;
313     int index;
314     AVStream *st;
315     int discard;             /* true if stream data should be discarded */
316     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
317     int64_t sample_index;      /* current sample */
318
319     int64_t       start;     /* time when read started */
320     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
321                                 is not defined */
322     int64_t       pts;       /* current pts */
323     PtsCorrectionContext pts_ctx;
324     int is_start;            /* is 1 at the start and after a discontinuity */
325     int showed_multi_packet_warning;
326     int is_past_recording_time;
327 #if CONFIG_AVFILTER
328     AVFilterContext *output_video_filter;
329     AVFilterContext *input_video_filter;
330     AVFrame *filter_frame;
331     int has_filter_frame;
332     AVFilterBufferRef *picref;
333 #endif
334 } AVInputStream;
335
336 typedef struct AVInputFile {
337     int eof_reached;      /* true if eof reached */
338     int ist_index;        /* index of first stream in ist_table */
339     int buffer_size;      /* current total buffer size */
340     int nb_streams;       /* nb streams we are aware of */
341 } AVInputFile;
342
343 #if CONFIG_AVFILTER
344
345 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
346 {
347     AVFilterContext *last_filter, *filter;
348     /** filter graph containing all filters including input & output */
349     AVCodecContext *codec = ost->st->codec;
350     AVCodecContext *icodec = ist->st->codec;
351     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
352     AVRational sample_aspect_ratio;
353     char args[255];
354     int ret;
355
356     graph = avfilter_graph_alloc();
357
358     if (ist->st->sample_aspect_ratio.num){
359         sample_aspect_ratio = ist->st->sample_aspect_ratio;
360     }else
361         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
362
363     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
364              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
365              sample_aspect_ratio.num, sample_aspect_ratio.den);
366
367     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
368                                        "src", args, NULL, graph);
369     if (ret < 0)
370         return ret;
371     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
372                                        "out", NULL, &ffsink_ctx, graph);
373     if (ret < 0)
374         return ret;
375     last_filter = ist->input_video_filter;
376
377     if (codec->width  != icodec->width || codec->height != icodec->height) {
378         snprintf(args, 255, "%d:%d:flags=0x%X",
379                  codec->width,
380                  codec->height,
381                  ost->sws_flags);
382         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
383                                                 NULL, args, NULL, graph)) < 0)
384             return ret;
385         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
386             return ret;
387         last_filter = filter;
388     }
389
390     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
391     graph->scale_sws_opts = av_strdup(args);
392
393     if (vfilters) {
394         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
395         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
396
397         outputs->name    = av_strdup("in");
398         outputs->filter_ctx = last_filter;
399         outputs->pad_idx = 0;
400         outputs->next    = NULL;
401
402         inputs->name    = av_strdup("out");
403         inputs->filter_ctx = ist->output_video_filter;
404         inputs->pad_idx = 0;
405         inputs->next    = NULL;
406
407         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
408             return ret;
409         av_freep(&vfilters);
410     } else {
411         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
412             return ret;
413     }
414
415     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
416         return ret;
417
418     codec->width  = ist->output_video_filter->inputs[0]->w;
419     codec->height = ist->output_video_filter->inputs[0]->h;
420     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
421         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
422
423     return 0;
424 }
425 #endif /* CONFIG_AVFILTER */
426
427 static void term_exit(void)
428 {
429     av_log(NULL, AV_LOG_QUIET, "");
430 }
431
432 static volatile int received_sigterm = 0;
433
434 static void
435 sigterm_handler(int sig)
436 {
437     received_sigterm = sig;
438     term_exit();
439 }
440
441 static void term_init(void)
442 {
443     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
444     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
445 #ifdef SIGXCPU
446     signal(SIGXCPU, sigterm_handler);
447 #endif
448 }
449
450 /* read a key without blocking */
451 static int read_key(void)
452 {
453 #if HAVE_KBHIT
454     if(kbhit())
455         return(getch());
456 #endif
457     return -1;
458 }
459
460 static int decode_interrupt_cb(void)
461 {
462     return q_pressed || (q_pressed = read_key() == 'q');
463 }
464
465 static int ffmpeg_exit(int ret)
466 {
467     int i;
468
469     /* close files */
470     for(i=0;i<nb_output_files;i++) {
471         AVFormatContext *s = output_files[i];
472         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
473             avio_close(s->pb);
474         avformat_free_context(s);
475         av_free(output_streams_for_file[i]);
476     }
477     for(i=0;i<nb_input_files;i++) {
478         av_close_input_file(input_files[i]);
479         av_free(input_files_ts_scale[i]);
480     }
481
482     av_free(intra_matrix);
483     av_free(inter_matrix);
484
485     if (vstats_file)
486         fclose(vstats_file);
487     av_free(vstats_filename);
488
489     av_free(streamid_map);
490     av_free(input_codecs);
491     av_free(output_codecs);
492     av_free(stream_maps);
493     av_free(meta_data_maps);
494
495     av_free(video_codec_name);
496     av_free(audio_codec_name);
497     av_free(subtitle_codec_name);
498     av_free(data_codec_name);
499
500     av_free(video_standard);
501
502     uninit_opts();
503     av_free(audio_buf);
504     av_free(audio_out);
505     allocated_audio_buf_size= allocated_audio_out_size= 0;
506     av_free(samples);
507
508 #if CONFIG_AVFILTER
509     avfilter_uninit();
510 #endif
511
512     if (received_sigterm) {
513         fprintf(stderr,
514             "Received signal %d: terminating.\n",
515             (int) received_sigterm);
516         exit (255);
517     }
518
519     exit(ret); /* not all OS-es handle main() return value */
520     return ret;
521 }
522
523 /* similar to ff_dynarray_add() and av_fast_realloc() */
524 static void *grow_array(void *array, int elem_size, int *size, int new_size)
525 {
526     if (new_size >= INT_MAX / elem_size) {
527         fprintf(stderr, "Array too big.\n");
528         ffmpeg_exit(1);
529     }
530     if (*size < new_size) {
531         uint8_t *tmp = av_realloc(array, new_size*elem_size);
532         if (!tmp) {
533             fprintf(stderr, "Could not alloc buffer.\n");
534             ffmpeg_exit(1);
535         }
536         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
537         *size = new_size;
538         return tmp;
539     }
540     return array;
541 }
542
543 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
544 {
545     if(codec && codec->sample_fmts){
546         const enum AVSampleFormat *p= codec->sample_fmts;
547         for(; *p!=-1; p++){
548             if(*p == st->codec->sample_fmt)
549                 break;
550         }
551         if (*p == -1) {
552             av_log(NULL, AV_LOG_WARNING,
553                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
554                    av_get_sample_fmt_name(st->codec->sample_fmt),
555                    codec->name,
556                    av_get_sample_fmt_name(codec->sample_fmts[0]));
557             st->codec->sample_fmt = codec->sample_fmts[0];
558         }
559     }
560 }
561
562 static void choose_sample_rate(AVStream *st, AVCodec *codec)
563 {
564     if(codec && codec->supported_samplerates){
565         const int *p= codec->supported_samplerates;
566         int best=0;
567         int best_dist=INT_MAX;
568         for(; *p; p++){
569             int dist= abs(st->codec->sample_rate - *p);
570             if(dist < best_dist){
571                 best_dist= dist;
572                 best= *p;
573             }
574         }
575         if(best_dist){
576             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
577         }
578         st->codec->sample_rate= best;
579     }
580 }
581
582 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
583 {
584     if(codec && codec->pix_fmts){
585         const enum PixelFormat *p= codec->pix_fmts;
586         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
587             if(st->codec->codec_id==CODEC_ID_MJPEG){
588                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
589             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
590                 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};
591             }
592         }
593         for(; *p!=-1; p++){
594             if(*p == st->codec->pix_fmt)
595                 break;
596         }
597         if(*p == -1)
598             st->codec->pix_fmt = codec->pix_fmts[0];
599     }
600 }
601
602 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
603 {
604     int idx = oc->nb_streams - 1;
605     AVOutputStream *ost;
606
607     output_streams_for_file[file_idx] =
608         grow_array(output_streams_for_file[file_idx],
609                    sizeof(*output_streams_for_file[file_idx]),
610                    &nb_output_streams_for_file[file_idx],
611                    oc->nb_streams);
612     ost = output_streams_for_file[file_idx][idx] =
613         av_mallocz(sizeof(AVOutputStream));
614     if (!ost) {
615         fprintf(stderr, "Could not alloc output stream\n");
616         ffmpeg_exit(1);
617     }
618     ost->file_index = file_idx;
619     ost->index = idx;
620
621     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
622     return ost;
623 }
624
625 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
626 {
627     int i, err;
628     AVFormatContext *ic;
629     int nopts = 0;
630
631     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
632     if (err < 0)
633         return err;
634     /* copy stream format */
635     s->nb_streams = 0;
636     for(i=0;i<ic->nb_streams;i++) {
637         AVStream *st;
638         AVCodec *codec;
639
640         s->nb_streams++;
641
642         // FIXME: a more elegant solution is needed
643         st = av_mallocz(sizeof(AVStream));
644         memcpy(st, ic->streams[i], sizeof(AVStream));
645         st->codec = avcodec_alloc_context();
646         if (!st->codec) {
647             print_error(filename, AVERROR(ENOMEM));
648             ffmpeg_exit(1);
649         }
650         avcodec_copy_context(st->codec, ic->streams[i]->codec);
651         s->streams[i] = st;
652
653         codec = avcodec_find_encoder(st->codec->codec_id);
654         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
655             if (audio_stream_copy) {
656                 st->stream_copy = 1;
657             } else
658                 choose_sample_fmt(st, codec);
659         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
660             if (video_stream_copy) {
661                 st->stream_copy = 1;
662             } else
663                 choose_pixel_fmt(st, codec);
664         }
665
666         if(st->codec->flags & CODEC_FLAG_BITEXACT)
667             nopts = 1;
668
669         new_output_stream(s, nb_output_files);
670     }
671
672     if (!nopts)
673         s->timestamp = av_gettime();
674
675     av_close_input_file(ic);
676     return 0;
677 }
678
679 static double
680 get_sync_ipts(const AVOutputStream *ost)
681 {
682     const AVInputStream *ist = ost->sync_ist;
683     return (double)(ist->pts - start_time)/AV_TIME_BASE;
684 }
685
686 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
687     int ret;
688
689     while(bsfc){
690         AVPacket new_pkt= *pkt;
691         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
692                                           &new_pkt.data, &new_pkt.size,
693                                           pkt->data, pkt->size,
694                                           pkt->flags & AV_PKT_FLAG_KEY);
695         if(a>0){
696             av_free_packet(pkt);
697             new_pkt.destruct= av_destruct_packet;
698         } else if(a<0){
699             fprintf(stderr, "%s failed for stream %d, codec %s",
700                     bsfc->filter->name, pkt->stream_index,
701                     avctx->codec ? avctx->codec->name : "copy");
702             print_error("", a);
703             if (exit_on_error)
704                 ffmpeg_exit(1);
705         }
706         *pkt= new_pkt;
707
708         bsfc= bsfc->next;
709     }
710
711     ret= av_interleaved_write_frame(s, pkt);
712     if(ret < 0){
713         print_error("av_interleaved_write_frame()", ret);
714         ffmpeg_exit(1);
715     }
716 }
717
718 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
719
720 static void do_audio_out(AVFormatContext *s,
721                          AVOutputStream *ost,
722                          AVInputStream *ist,
723                          unsigned char *buf, int size)
724 {
725     uint8_t *buftmp;
726     int64_t audio_out_size, audio_buf_size;
727     int64_t allocated_for_size= size;
728
729     int size_out, frame_bytes, ret, resample_changed;
730     AVCodecContext *enc= ost->st->codec;
731     AVCodecContext *dec= ist->st->codec;
732     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
733     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
734     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
735
736 need_realloc:
737     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
738     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
739     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
740     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
741     audio_buf_size*= osize*enc->channels;
742
743     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
744     if(coded_bps > 8*osize)
745         audio_out_size= audio_out_size * coded_bps / (8*osize);
746     audio_out_size += FF_MIN_BUFFER_SIZE;
747
748     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
749         fprintf(stderr, "Buffer sizes too large\n");
750         ffmpeg_exit(1);
751     }
752
753     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
754     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
755     if (!audio_buf || !audio_out){
756         fprintf(stderr, "Out of memory in do_audio_out\n");
757         ffmpeg_exit(1);
758     }
759
760     if (enc->channels != dec->channels)
761         ost->audio_resample = 1;
762
763     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
764                        ost->resample_channels    != dec->channels   ||
765                        ost->resample_sample_rate != dec->sample_rate;
766
767     if ((ost->audio_resample && !ost->resample) || resample_changed) {
768         if (resample_changed) {
769             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",
770                    ist->file_index, ist->index,
771                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
772                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
773             ost->resample_sample_fmt  = dec->sample_fmt;
774             ost->resample_channels    = dec->channels;
775             ost->resample_sample_rate = dec->sample_rate;
776             if (ost->resample)
777                 audio_resample_close(ost->resample);
778         }
779         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
780         if (audio_sync_method <= 1 &&
781             ost->resample_sample_fmt  == enc->sample_fmt &&
782             ost->resample_channels    == enc->channels   &&
783             ost->resample_sample_rate == enc->sample_rate) {
784             ost->resample = NULL;
785             ost->audio_resample = 0;
786         } else {
787             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
788                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
789             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
790                                                    enc->sample_rate, dec->sample_rate,
791                                                    enc->sample_fmt,  dec->sample_fmt,
792                                                    16, 10, 0, 0.8);
793             if (!ost->resample) {
794                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
795                         dec->channels, dec->sample_rate,
796                         enc->channels, enc->sample_rate);
797                 ffmpeg_exit(1);
798             }
799         }
800     }
801
802 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
803     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
804         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
805         if (ost->reformat_ctx)
806             av_audio_convert_free(ost->reformat_ctx);
807         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
808                                                    dec->sample_fmt, 1, NULL, 0);
809         if (!ost->reformat_ctx) {
810             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
811                 av_get_sample_fmt_name(dec->sample_fmt),
812                 av_get_sample_fmt_name(enc->sample_fmt));
813             ffmpeg_exit(1);
814         }
815         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
816     }
817
818     if(audio_sync_method){
819         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
820                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
821         double idelta= delta*dec->sample_rate / enc->sample_rate;
822         int byte_delta= ((int)idelta)*2*dec->channels;
823
824         //FIXME resample delay
825         if(fabs(delta) > 50){
826             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
827                 if(byte_delta < 0){
828                     byte_delta= FFMAX(byte_delta, -size);
829                     size += byte_delta;
830                     buf  -= byte_delta;
831                     if(verbose > 2)
832                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
833                     if(!size)
834                         return;
835                     ist->is_start=0;
836                 }else{
837                     static uint8_t *input_tmp= NULL;
838                     input_tmp= av_realloc(input_tmp, byte_delta + size);
839
840                     if(byte_delta > allocated_for_size - size){
841                         allocated_for_size= byte_delta + (int64_t)size;
842                         goto need_realloc;
843                     }
844                     ist->is_start=0;
845
846                     memset(input_tmp, 0, byte_delta);
847                     memcpy(input_tmp + byte_delta, buf, size);
848                     buf= input_tmp;
849                     size += byte_delta;
850                     if(verbose > 2)
851                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
852                 }
853             }else if(audio_sync_method>1){
854                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
855                 av_assert0(ost->audio_resample);
856                 if(verbose > 2)
857                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
858 //                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));
859                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
860             }
861         }
862     }else
863         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
864                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
865
866     if (ost->audio_resample) {
867         buftmp = audio_buf;
868         size_out = audio_resample(ost->resample,
869                                   (short *)buftmp, (short *)buf,
870                                   size / (dec->channels * isize));
871         size_out = size_out * enc->channels * osize;
872     } else {
873         buftmp = buf;
874         size_out = size;
875     }
876
877     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
878         const void *ibuf[6]= {buftmp};
879         void *obuf[6]= {audio_buf};
880         int istride[6]= {isize};
881         int ostride[6]= {osize};
882         int len= size_out/istride[0];
883         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
884             printf("av_audio_convert() failed\n");
885             if (exit_on_error)
886                 ffmpeg_exit(1);
887             return;
888         }
889         buftmp = audio_buf;
890         size_out = len*osize;
891     }
892
893     /* now encode as many frames as possible */
894     if (enc->frame_size > 1) {
895         /* output resampled raw samples */
896         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
897             fprintf(stderr, "av_fifo_realloc2() failed\n");
898             ffmpeg_exit(1);
899         }
900         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
901
902         frame_bytes = enc->frame_size * osize * enc->channels;
903
904         while (av_fifo_size(ost->fifo) >= frame_bytes) {
905             AVPacket pkt;
906             av_init_packet(&pkt);
907
908             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
909
910             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
911
912             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
913                                        (short *)audio_buf);
914             if (ret < 0) {
915                 fprintf(stderr, "Audio encoding failed\n");
916                 ffmpeg_exit(1);
917             }
918             audio_size += ret;
919             pkt.stream_index= ost->index;
920             pkt.data= audio_out;
921             pkt.size= ret;
922             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
923                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
924             pkt.flags |= AV_PKT_FLAG_KEY;
925             write_frame(s, &pkt, enc, ost->bitstream_filters);
926
927             ost->sync_opts += enc->frame_size;
928         }
929     } else {
930         AVPacket pkt;
931         av_init_packet(&pkt);
932
933         ost->sync_opts += size_out / (osize * enc->channels);
934
935         /* output a pcm frame */
936         /* determine the size of the coded buffer */
937         size_out /= osize;
938         if (coded_bps)
939             size_out = size_out*coded_bps/8;
940
941         if(size_out > audio_out_size){
942             fprintf(stderr, "Internal error, buffer size too small\n");
943             ffmpeg_exit(1);
944         }
945
946         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
947         ret = avcodec_encode_audio(enc, audio_out, size_out,
948                                    (short *)buftmp);
949         if (ret < 0) {
950             fprintf(stderr, "Audio encoding failed\n");
951             ffmpeg_exit(1);
952         }
953         audio_size += ret;
954         pkt.stream_index= ost->index;
955         pkt.data= audio_out;
956         pkt.size= ret;
957         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
958             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
959         pkt.flags |= AV_PKT_FLAG_KEY;
960         write_frame(s, &pkt, enc, ost->bitstream_filters);
961     }
962 }
963
964 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
965 {
966     AVCodecContext *dec;
967     AVPicture *picture2;
968     AVPicture picture_tmp;
969     uint8_t *buf = 0;
970
971     dec = ist->st->codec;
972
973     /* deinterlace : must be done before any resize */
974     if (do_deinterlace) {
975         int size;
976
977         /* create temporary picture */
978         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
979         buf = av_malloc(size);
980         if (!buf)
981             return;
982
983         picture2 = &picture_tmp;
984         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
985
986         if(avpicture_deinterlace(picture2, picture,
987                                  dec->pix_fmt, dec->width, dec->height) < 0) {
988             /* if error, do not deinterlace */
989             fprintf(stderr, "Deinterlacing failed\n");
990             av_free(buf);
991             buf = NULL;
992             picture2 = picture;
993         }
994     } else {
995         picture2 = picture;
996     }
997
998     if (picture != picture2)
999         *picture = *picture2;
1000     *bufp = buf;
1001 }
1002
1003 /* we begin to correct av delay at this threshold */
1004 #define AV_DELAY_MAX 0.100
1005
1006 static void do_subtitle_out(AVFormatContext *s,
1007                             AVOutputStream *ost,
1008                             AVInputStream *ist,
1009                             AVSubtitle *sub,
1010                             int64_t pts)
1011 {
1012     static uint8_t *subtitle_out = NULL;
1013     int subtitle_out_max_size = 1024 * 1024;
1014     int subtitle_out_size, nb, i;
1015     AVCodecContext *enc;
1016     AVPacket pkt;
1017
1018     if (pts == AV_NOPTS_VALUE) {
1019         fprintf(stderr, "Subtitle packets must have a pts\n");
1020         if (exit_on_error)
1021             ffmpeg_exit(1);
1022         return;
1023     }
1024
1025     enc = ost->st->codec;
1026
1027     if (!subtitle_out) {
1028         subtitle_out = av_malloc(subtitle_out_max_size);
1029     }
1030
1031     /* Note: DVB subtitle need one packet to draw them and one other
1032        packet to clear them */
1033     /* XXX: signal it in the codec context ? */
1034     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1035         nb = 2;
1036     else
1037         nb = 1;
1038
1039     for(i = 0; i < nb; i++) {
1040         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1041         // start_display_time is required to be 0
1042         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1043         sub->end_display_time -= sub->start_display_time;
1044         sub->start_display_time = 0;
1045         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1046                                                     subtitle_out_max_size, sub);
1047         if (subtitle_out_size < 0) {
1048             fprintf(stderr, "Subtitle encoding failed\n");
1049             ffmpeg_exit(1);
1050         }
1051
1052         av_init_packet(&pkt);
1053         pkt.stream_index = ost->index;
1054         pkt.data = subtitle_out;
1055         pkt.size = subtitle_out_size;
1056         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1057         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1058             /* XXX: the pts correction is handled here. Maybe handling
1059                it in the codec would be better */
1060             if (i == 0)
1061                 pkt.pts += 90 * sub->start_display_time;
1062             else
1063                 pkt.pts += 90 * sub->end_display_time;
1064         }
1065         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1066     }
1067 }
1068
1069 static int bit_buffer_size= 1024*256;
1070 static uint8_t *bit_buffer= NULL;
1071
1072 static void do_video_out(AVFormatContext *s,
1073                          AVOutputStream *ost,
1074                          AVInputStream *ist,
1075                          AVFrame *in_picture,
1076                          int *frame_size)
1077 {
1078     int nb_frames, i, ret;
1079     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1080     AVCodecContext *enc, *dec;
1081     double sync_ipts;
1082
1083     enc = ost->st->codec;
1084     dec = ist->st->codec;
1085
1086     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1087
1088     /* by default, we output a single frame */
1089     nb_frames = 1;
1090
1091     *frame_size = 0;
1092
1093     if(video_sync_method){
1094         double vdelta = sync_ipts - ost->sync_opts;
1095         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1096         if (vdelta < -1.1)
1097             nb_frames = 0;
1098         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1099             if(vdelta<=-0.6){
1100                 nb_frames=0;
1101             }else if(vdelta>0.6)
1102                 ost->sync_opts= lrintf(sync_ipts);
1103         }else if (vdelta > 1.1)
1104             nb_frames = lrintf(vdelta);
1105 //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);
1106         if (nb_frames == 0){
1107             ++nb_frames_drop;
1108             if (verbose>2)
1109                 fprintf(stderr, "*** drop!\n");
1110         }else if (nb_frames > 1) {
1111             nb_frames_dup += nb_frames - 1;
1112             if (verbose>2)
1113                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1114         }
1115     }else
1116         ost->sync_opts= lrintf(sync_ipts);
1117
1118     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1119     if (nb_frames <= 0)
1120         return;
1121
1122     formatted_picture = in_picture;
1123     final_picture = formatted_picture;
1124     padding_src = formatted_picture;
1125     resampling_dst = &ost->pict_tmp;
1126
1127     if (   ost->resample_height != ist->st->codec->height
1128         || ost->resample_width  != ist->st->codec->width
1129         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1130
1131         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));
1132         if(!ost->video_resample)
1133             ffmpeg_exit(1);
1134     }
1135
1136 #if !CONFIG_AVFILTER
1137     if (ost->video_resample) {
1138         padding_src = NULL;
1139         final_picture = &ost->pict_tmp;
1140         if(  ost->resample_height != ist->st->codec->height
1141           || ost->resample_width  != ist->st->codec->width
1142           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1143
1144             /* initialize a new scaler context */
1145             sws_freeContext(ost->img_resample_ctx);
1146             ost->img_resample_ctx = sws_getContext(
1147                 ist->st->codec->width,
1148                 ist->st->codec->height,
1149                 ist->st->codec->pix_fmt,
1150                 ost->st->codec->width,
1151                 ost->st->codec->height,
1152                 ost->st->codec->pix_fmt,
1153                 ost->sws_flags, NULL, NULL, NULL);
1154             if (ost->img_resample_ctx == NULL) {
1155                 fprintf(stderr, "Cannot get resampling context\n");
1156                 ffmpeg_exit(1);
1157             }
1158         }
1159         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1160               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1161     }
1162 #endif
1163
1164     /* duplicates frame if needed */
1165     for(i=0;i<nb_frames;i++) {
1166         AVPacket pkt;
1167         av_init_packet(&pkt);
1168         pkt.stream_index= ost->index;
1169
1170         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1171             /* raw pictures are written as AVPicture structure to
1172                avoid any copies. We support temorarily the older
1173                method. */
1174             AVFrame* old_frame = enc->coded_frame;
1175             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1176             pkt.data= (uint8_t *)final_picture;
1177             pkt.size=  sizeof(AVPicture);
1178             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1179             pkt.flags |= AV_PKT_FLAG_KEY;
1180
1181             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1182             enc->coded_frame = old_frame;
1183         } else {
1184             AVFrame big_picture;
1185
1186             big_picture= *final_picture;
1187             /* better than nothing: use input picture interlaced
1188                settings */
1189             big_picture.interlaced_frame = in_picture->interlaced_frame;
1190             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1191                 if(top_field_first == -1)
1192                     big_picture.top_field_first = in_picture->top_field_first;
1193                 else
1194                     big_picture.top_field_first = top_field_first;
1195             }
1196
1197             /* handles sameq here. This is not correct because it may
1198                not be a global option */
1199             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1200             if(!me_threshold)
1201                 big_picture.pict_type = 0;
1202 //            big_picture.pts = AV_NOPTS_VALUE;
1203             big_picture.pts= ost->sync_opts;
1204 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1205 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1206             if (ost->forced_kf_index < ost->forced_kf_count &&
1207                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1208                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1209                 ost->forced_kf_index++;
1210             }
1211             ret = avcodec_encode_video(enc,
1212                                        bit_buffer, bit_buffer_size,
1213                                        &big_picture);
1214             if (ret < 0) {
1215                 fprintf(stderr, "Video encoding failed\n");
1216                 ffmpeg_exit(1);
1217             }
1218
1219             if(ret>0){
1220                 pkt.data= bit_buffer;
1221                 pkt.size= ret;
1222                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1223                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1224 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1225    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1226    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1227
1228                 if(enc->coded_frame->key_frame)
1229                     pkt.flags |= AV_PKT_FLAG_KEY;
1230                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1231                 *frame_size = ret;
1232                 video_size += ret;
1233                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1234                 //        enc->frame_number-1, ret, enc->pict_type);
1235                 /* if two pass, output log */
1236                 if (ost->logfile && enc->stats_out) {
1237                     fprintf(ost->logfile, "%s", enc->stats_out);
1238                 }
1239             }
1240         }
1241         ost->sync_opts++;
1242         ost->frame_number++;
1243     }
1244 }
1245
1246 static double psnr(double d){
1247     return -10.0*log(d)/log(10.0);
1248 }
1249
1250 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1251                            int frame_size)
1252 {
1253     AVCodecContext *enc;
1254     int frame_number;
1255     double ti1, bitrate, avg_bitrate;
1256
1257     /* this is executed just the first time do_video_stats is called */
1258     if (!vstats_file) {
1259         vstats_file = fopen(vstats_filename, "w");
1260         if (!vstats_file) {
1261             perror("fopen");
1262             ffmpeg_exit(1);
1263         }
1264     }
1265
1266     enc = ost->st->codec;
1267     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1268         frame_number = ost->frame_number;
1269         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1270         if (enc->flags&CODEC_FLAG_PSNR)
1271             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1272
1273         fprintf(vstats_file,"f_size= %6d ", frame_size);
1274         /* compute pts value */
1275         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1276         if (ti1 < 0.01)
1277             ti1 = 0.01;
1278
1279         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1280         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1281         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1282             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1283         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1284     }
1285 }
1286
1287 static void print_report(AVFormatContext **output_files,
1288                          AVOutputStream **ost_table, int nb_ostreams,
1289                          int is_last_report)
1290 {
1291     char buf[1024];
1292     AVOutputStream *ost;
1293     AVFormatContext *oc;
1294     int64_t total_size;
1295     AVCodecContext *enc;
1296     int frame_number, vid, i;
1297     double bitrate, ti1, pts;
1298     static int64_t last_time = -1;
1299     static int qp_histogram[52];
1300
1301     if (!is_last_report) {
1302         int64_t cur_time;
1303         /* display the report every 0.5 seconds */
1304         cur_time = av_gettime();
1305         if (last_time == -1) {
1306             last_time = cur_time;
1307             return;
1308         }
1309         if ((cur_time - last_time) < 500000)
1310             return;
1311         last_time = cur_time;
1312     }
1313
1314
1315     oc = output_files[0];
1316
1317     total_size = avio_size(oc->pb);
1318     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1319         total_size= avio_tell(oc->pb);
1320
1321     buf[0] = '\0';
1322     ti1 = 1e10;
1323     vid = 0;
1324     for(i=0;i<nb_ostreams;i++) {
1325         ost = ost_table[i];
1326         enc = ost->st->codec;
1327         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1328             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1329                      !ost->st->stream_copy ?
1330                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1331         }
1332         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1333             float t = (av_gettime()-timer_start) / 1000000.0;
1334
1335             frame_number = ost->frame_number;
1336             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1337                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1338                      !ost->st->stream_copy ?
1339                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1340             if(is_last_report)
1341                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1342             if(qp_hist){
1343                 int j;
1344                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1345                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1346                     qp_histogram[qp]++;
1347                 for(j=0; j<32; j++)
1348                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1349             }
1350             if (enc->flags&CODEC_FLAG_PSNR){
1351                 int j;
1352                 double error, error_sum=0;
1353                 double scale, scale_sum=0;
1354                 char type[3]= {'Y','U','V'};
1355                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1356                 for(j=0; j<3; j++){
1357                     if(is_last_report){
1358                         error= enc->error[j];
1359                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1360                     }else{
1361                         error= enc->coded_frame->error[j];
1362                         scale= enc->width*enc->height*255.0*255.0;
1363                     }
1364                     if(j) scale/=4;
1365                     error_sum += error;
1366                     scale_sum += scale;
1367                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1368                 }
1369                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1370             }
1371             vid = 1;
1372         }
1373         /* compute min output value */
1374         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1375         if ((pts < ti1) && (pts > 0))
1376             ti1 = pts;
1377     }
1378     if (ti1 < 0.01)
1379         ti1 = 0.01;
1380
1381     if (verbose || is_last_report) {
1382         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1383
1384         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1385             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1386             (double)total_size / 1024, ti1, bitrate);
1387
1388         if (nb_frames_dup || nb_frames_drop)
1389           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1390                   nb_frames_dup, nb_frames_drop);
1391
1392         if (verbose >= 0)
1393             fprintf(stderr, "%s    \r", buf);
1394
1395         fflush(stderr);
1396     }
1397
1398     if (is_last_report && verbose >= 0){
1399         int64_t raw= audio_size + video_size + extra_size;
1400         fprintf(stderr, "\n");
1401         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1402                 video_size/1024.0,
1403                 audio_size/1024.0,
1404                 extra_size/1024.0,
1405                 100.0*(total_size - raw)/raw
1406         );
1407     }
1408 }
1409
1410 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1411 {
1412     int fill_char = 0x00;
1413     if (sample_fmt == AV_SAMPLE_FMT_U8)
1414         fill_char = 0x80;
1415     memset(buf, fill_char, size);
1416 }
1417
1418 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1419 static int output_packet(AVInputStream *ist, int ist_index,
1420                          AVOutputStream **ost_table, int nb_ostreams,
1421                          const AVPacket *pkt)
1422 {
1423     AVFormatContext *os;
1424     AVOutputStream *ost;
1425     int ret, i;
1426     int got_picture;
1427     AVFrame picture;
1428     void *buffer_to_free;
1429     static unsigned int samples_size= 0;
1430     AVSubtitle subtitle, *subtitle_to_free;
1431     int64_t pkt_pts = AV_NOPTS_VALUE;
1432 #if CONFIG_AVFILTER
1433     int frame_available;
1434 #endif
1435
1436     AVPacket avpkt;
1437     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1438
1439     if(ist->next_pts == AV_NOPTS_VALUE)
1440         ist->next_pts= ist->pts;
1441
1442     if (pkt == NULL) {
1443         /* EOF handling */
1444         av_init_packet(&avpkt);
1445         avpkt.data = NULL;
1446         avpkt.size = 0;
1447         goto handle_eof;
1448     } else {
1449         avpkt = *pkt;
1450     }
1451
1452     if(pkt->dts != AV_NOPTS_VALUE)
1453         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1454     if(pkt->pts != AV_NOPTS_VALUE)
1455         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1456
1457     //while we have more to decode or while the decoder did output something on EOF
1458     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1459         uint8_t *data_buf, *decoded_data_buf;
1460         int data_size, decoded_data_size;
1461     handle_eof:
1462         ist->pts= ist->next_pts;
1463
1464         if(avpkt.size && avpkt.size != pkt->size &&
1465            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1466             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1467             ist->showed_multi_packet_warning=1;
1468         }
1469
1470         /* decode the packet if needed */
1471         decoded_data_buf = NULL; /* fail safe */
1472         decoded_data_size= 0;
1473         data_buf  = avpkt.data;
1474         data_size = avpkt.size;
1475         subtitle_to_free = NULL;
1476         if (ist->decoding_needed) {
1477             switch(ist->st->codec->codec_type) {
1478             case AVMEDIA_TYPE_AUDIO:{
1479                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1480                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1481                     av_free(samples);
1482                     samples= av_malloc(samples_size);
1483                 }
1484                 decoded_data_size= samples_size;
1485                     /* XXX: could avoid copy if PCM 16 bits with same
1486                        endianness as CPU */
1487                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1488                                             &avpkt);
1489                 if (ret < 0)
1490                     goto fail_decode;
1491                 avpkt.data += ret;
1492                 avpkt.size -= ret;
1493                 data_size   = ret;
1494                 /* Some bug in mpeg audio decoder gives */
1495                 /* decoded_data_size < 0, it seems they are overflows */
1496                 if (decoded_data_size <= 0) {
1497                     /* no audio frame */
1498                     continue;
1499                 }
1500                 decoded_data_buf = (uint8_t *)samples;
1501                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1502                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1503                 break;}
1504             case AVMEDIA_TYPE_VIDEO:
1505                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1506                     /* XXX: allocate picture correctly */
1507                     avcodec_get_frame_defaults(&picture);
1508                     avpkt.pts = pkt_pts;
1509                     avpkt.dts = ist->pts;
1510                     pkt_pts = AV_NOPTS_VALUE;
1511
1512                     ret = avcodec_decode_video2(ist->st->codec,
1513                                                 &picture, &got_picture, &avpkt);
1514                     ist->st->quality= picture.quality;
1515                     if (ret < 0)
1516                         goto fail_decode;
1517                     if (!got_picture) {
1518                         /* no picture yet */
1519                         goto discard_packet;
1520                     }
1521                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1522                     if (ist->st->codec->time_base.num != 0) {
1523                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1524                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1525                                           ist->st->codec->time_base.num * ticks) /
1526                             ist->st->codec->time_base.den;
1527                     }
1528                     avpkt.size = 0;
1529                     break;
1530             case AVMEDIA_TYPE_SUBTITLE:
1531                 ret = avcodec_decode_subtitle2(ist->st->codec,
1532                                                &subtitle, &got_picture, &avpkt);
1533                 if (ret < 0)
1534                     goto fail_decode;
1535                 if (!got_picture) {
1536                     goto discard_packet;
1537                 }
1538                 subtitle_to_free = &subtitle;
1539                 avpkt.size = 0;
1540                 break;
1541             default:
1542                 goto fail_decode;
1543             }
1544         } else {
1545             switch(ist->st->codec->codec_type) {
1546             case AVMEDIA_TYPE_AUDIO:
1547                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1548                     ist->st->codec->sample_rate;
1549                 break;
1550             case AVMEDIA_TYPE_VIDEO:
1551                 if (ist->st->codec->time_base.num != 0) {
1552                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1553                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1554                                       ist->st->codec->time_base.num * ticks) /
1555                         ist->st->codec->time_base.den;
1556                 }
1557                 break;
1558             }
1559             ret = avpkt.size;
1560             avpkt.size = 0;
1561         }
1562
1563         buffer_to_free = NULL;
1564         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1565             pre_process_video_frame(ist, (AVPicture *)&picture,
1566                                     &buffer_to_free);
1567         }
1568
1569 #if CONFIG_AVFILTER
1570         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1571             AVRational sar;
1572             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1573             else                                  sar = ist->st->codec->sample_aspect_ratio;
1574             // add it to be filtered
1575             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1576                                      ist->pts,
1577                                      sar);
1578         }
1579 #endif
1580
1581         // preprocess audio (volume)
1582         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1583             if (audio_volume != 256) {
1584                 short *volp;
1585                 volp = samples;
1586                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1587                     int v = ((*volp) * audio_volume + 128) >> 8;
1588                     if (v < -32768) v = -32768;
1589                     if (v >  32767) v = 32767;
1590                     *volp++ = v;
1591                 }
1592             }
1593         }
1594
1595         /* frame rate emulation */
1596         if (rate_emu) {
1597             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1598             int64_t now = av_gettime() - ist->start;
1599             if (pts > now)
1600                 usleep(pts - now);
1601         }
1602 #if CONFIG_AVFILTER
1603         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1604             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1605 #endif
1606         /* if output time reached then transcode raw format,
1607            encode packets and output them */
1608         if (start_time == 0 || ist->pts >= start_time)
1609 #if CONFIG_AVFILTER
1610         while (frame_available) {
1611             AVRational ist_pts_tb;
1612             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1613                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1614             if (ist->picref)
1615                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1616 #endif
1617             for(i=0;i<nb_ostreams;i++) {
1618                 int frame_size;
1619
1620                 ost = ost_table[i];
1621                 if (ost->source_index == ist_index) {
1622                     os = output_files[ost->file_index];
1623
1624                     /* set the input output pts pairs */
1625                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1626
1627                     if (ost->encoding_needed) {
1628                         av_assert0(ist->decoding_needed);
1629                         switch(ost->st->codec->codec_type) {
1630                         case AVMEDIA_TYPE_AUDIO:
1631                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1632                             break;
1633                         case AVMEDIA_TYPE_VIDEO:
1634 #if CONFIG_AVFILTER
1635                             if (ist->picref->video)
1636                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1637 #endif
1638                             do_video_out(os, ost, ist, &picture, &frame_size);
1639                             if (vstats_filename && frame_size)
1640                                 do_video_stats(os, ost, frame_size);
1641                             break;
1642                         case AVMEDIA_TYPE_SUBTITLE:
1643                             do_subtitle_out(os, ost, ist, &subtitle,
1644                                             pkt->pts);
1645                             break;
1646                         default:
1647                             abort();
1648                         }
1649                     } else {
1650                         AVFrame avframe; //FIXME/XXX remove this
1651                         AVPacket opkt;
1652                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1653
1654                         av_init_packet(&opkt);
1655
1656                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1657                             continue;
1658
1659                         /* no reencoding needed : output the packet directly */
1660                         /* force the input stream PTS */
1661
1662                         avcodec_get_frame_defaults(&avframe);
1663                         ost->st->codec->coded_frame= &avframe;
1664                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1665
1666                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1667                             audio_size += data_size;
1668                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1669                             video_size += data_size;
1670                             ost->sync_opts++;
1671                         }
1672
1673                         opkt.stream_index= ost->index;
1674                         if(pkt->pts != AV_NOPTS_VALUE)
1675                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1676                         else
1677                             opkt.pts= AV_NOPTS_VALUE;
1678
1679                         if (pkt->dts == AV_NOPTS_VALUE)
1680                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1681                         else
1682                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1683                         opkt.dts -= ost_tb_start_time;
1684
1685                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1686                         opkt.flags= pkt->flags;
1687
1688                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1689                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1690                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1691                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1692                            ) {
1693                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1694                                 opkt.destruct= av_destruct_packet;
1695                         } else {
1696                             opkt.data = data_buf;
1697                             opkt.size = data_size;
1698                         }
1699
1700                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1701                         ost->st->codec->frame_number++;
1702                         ost->frame_number++;
1703                         av_free_packet(&opkt);
1704                     }
1705                 }
1706             }
1707
1708 #if CONFIG_AVFILTER
1709             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1710                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1711             if(ist->picref)
1712                 avfilter_unref_buffer(ist->picref);
1713         }
1714 #endif
1715         av_free(buffer_to_free);
1716         /* XXX: allocate the subtitles in the codec ? */
1717         if (subtitle_to_free) {
1718             avsubtitle_free(subtitle_to_free);
1719             subtitle_to_free = NULL;
1720         }
1721     }
1722  discard_packet:
1723     if (pkt == NULL) {
1724         /* EOF handling */
1725
1726         for(i=0;i<nb_ostreams;i++) {
1727             ost = ost_table[i];
1728             if (ost->source_index == ist_index) {
1729                 AVCodecContext *enc= ost->st->codec;
1730                 os = output_files[ost->file_index];
1731
1732                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1733                     continue;
1734                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1735                     continue;
1736
1737                 if (ost->encoding_needed) {
1738                     for(;;) {
1739                         AVPacket pkt;
1740                         int fifo_bytes;
1741                         av_init_packet(&pkt);
1742                         pkt.stream_index= ost->index;
1743
1744                         switch(ost->st->codec->codec_type) {
1745                         case AVMEDIA_TYPE_AUDIO:
1746                             fifo_bytes = av_fifo_size(ost->fifo);
1747                             ret = 0;
1748                             /* encode any samples remaining in fifo */
1749                             if (fifo_bytes > 0) {
1750                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1751                                 int fs_tmp = enc->frame_size;
1752
1753                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1754                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1755                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1756                                 } else { /* pad */
1757                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1758                                     if (allocated_audio_buf_size < frame_bytes)
1759                                         ffmpeg_exit(1);
1760                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1761                                 }
1762
1763                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1764                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1765                                                           ost->st->time_base.num, enc->sample_rate);
1766                                 enc->frame_size = fs_tmp;
1767                             }
1768                             if(ret <= 0) {
1769                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1770                             }
1771                             if (ret < 0) {
1772                                 fprintf(stderr, "Audio encoding failed\n");
1773                                 ffmpeg_exit(1);
1774                             }
1775                             audio_size += ret;
1776                             pkt.flags |= AV_PKT_FLAG_KEY;
1777                             break;
1778                         case AVMEDIA_TYPE_VIDEO:
1779                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1780                             if (ret < 0) {
1781                                 fprintf(stderr, "Video encoding failed\n");
1782                                 ffmpeg_exit(1);
1783                             }
1784                             video_size += ret;
1785                             if(enc->coded_frame && enc->coded_frame->key_frame)
1786                                 pkt.flags |= AV_PKT_FLAG_KEY;
1787                             if (ost->logfile && enc->stats_out) {
1788                                 fprintf(ost->logfile, "%s", enc->stats_out);
1789                             }
1790                             break;
1791                         default:
1792                             ret=-1;
1793                         }
1794
1795                         if(ret<=0)
1796                             break;
1797                         pkt.data= bit_buffer;
1798                         pkt.size= ret;
1799                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1800                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1801                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1802                     }
1803                 }
1804             }
1805         }
1806     }
1807
1808     return 0;
1809  fail_decode:
1810     return -1;
1811 }
1812
1813 static void print_sdp(AVFormatContext **avc, int n)
1814 {
1815     char sdp[2048];
1816
1817     av_sdp_create(avc, n, sdp, sizeof(sdp));
1818     printf("SDP:\n%s\n", sdp);
1819     fflush(stdout);
1820 }
1821
1822 static int copy_chapters(int infile, int outfile)
1823 {
1824     AVFormatContext *is = input_files[infile];
1825     AVFormatContext *os = output_files[outfile];
1826     int i;
1827
1828     for (i = 0; i < is->nb_chapters; i++) {
1829         AVChapter *in_ch = is->chapters[i], *out_ch;
1830         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1831                                       AV_TIME_BASE_Q, in_ch->time_base);
1832         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1833                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1834
1835
1836         if (in_ch->end < ts_off)
1837             continue;
1838         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1839             break;
1840
1841         out_ch = av_mallocz(sizeof(AVChapter));
1842         if (!out_ch)
1843             return AVERROR(ENOMEM);
1844
1845         out_ch->id        = in_ch->id;
1846         out_ch->time_base = in_ch->time_base;
1847         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1848         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1849
1850         if (metadata_chapters_autocopy)
1851             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1852
1853         os->nb_chapters++;
1854         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1855         if (!os->chapters)
1856             return AVERROR(ENOMEM);
1857         os->chapters[os->nb_chapters - 1] = out_ch;
1858     }
1859     return 0;
1860 }
1861
1862 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1863                                     AVCodecContext *avctx)
1864 {
1865     char *p;
1866     int n = 1, i;
1867     int64_t t;
1868
1869     for (p = kf; *p; p++)
1870         if (*p == ',')
1871             n++;
1872     ost->forced_kf_count = n;
1873     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1874     if (!ost->forced_kf_pts) {
1875         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1876         ffmpeg_exit(1);
1877     }
1878     for (i = 0; i < n; i++) {
1879         p = i ? strchr(p, ',') + 1 : kf;
1880         t = parse_time_or_die("force_key_frames", p, 1);
1881         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1882     }
1883 }
1884
1885 /*
1886  * The following code is the main loop of the file converter
1887  */
1888 static int transcode(AVFormatContext **output_files,
1889                      int nb_output_files,
1890                      AVFormatContext **input_files,
1891                      int nb_input_files,
1892                      AVStreamMap *stream_maps, int nb_stream_maps)
1893 {
1894     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1895     AVFormatContext *is, *os;
1896     AVCodecContext *codec, *icodec;
1897     AVOutputStream *ost, **ost_table = NULL;
1898     AVInputStream *ist, **ist_table = NULL;
1899     AVInputFile *file_table;
1900     char error[1024];
1901     int key;
1902     int want_sdp = 1;
1903     uint8_t no_packet[MAX_FILES]={0};
1904     int no_packet_count=0;
1905
1906     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1907     if (!file_table)
1908         goto fail;
1909
1910     /* input stream init */
1911     j = 0;
1912     for(i=0;i<nb_input_files;i++) {
1913         is = input_files[i];
1914         file_table[i].ist_index = j;
1915         file_table[i].nb_streams = is->nb_streams;
1916         j += is->nb_streams;
1917     }
1918     nb_istreams = j;
1919
1920     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1921     if (!ist_table)
1922         goto fail;
1923
1924     for(i=0;i<nb_istreams;i++) {
1925         ist = av_mallocz(sizeof(AVInputStream));
1926         if (!ist)
1927             goto fail;
1928         ist_table[i] = ist;
1929     }
1930     j = 0;
1931     for(i=0;i<nb_input_files;i++) {
1932         is = input_files[i];
1933         for(k=0;k<is->nb_streams;k++) {
1934             ist = ist_table[j++];
1935             ist->st = is->streams[k];
1936             ist->file_index = i;
1937             ist->index = k;
1938             ist->discard = 1; /* the stream is discarded by default
1939                                  (changed later) */
1940
1941             if (rate_emu) {
1942                 ist->start = av_gettime();
1943             }
1944         }
1945     }
1946
1947     /* output stream init */
1948     nb_ostreams = 0;
1949     for(i=0;i<nb_output_files;i++) {
1950         os = output_files[i];
1951         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1952             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1953             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1954             ret = AVERROR(EINVAL);
1955             goto fail;
1956         }
1957         nb_ostreams += os->nb_streams;
1958     }
1959     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1960         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1961         ret = AVERROR(EINVAL);
1962         goto fail;
1963     }
1964
1965     /* Sanity check the mapping args -- do the input files & streams exist? */
1966     for(i=0;i<nb_stream_maps;i++) {
1967         int fi = stream_maps[i].file_index;
1968         int si = stream_maps[i].stream_index;
1969
1970         if (fi < 0 || fi > nb_input_files - 1 ||
1971             si < 0 || si > file_table[fi].nb_streams - 1) {
1972             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1973             ret = AVERROR(EINVAL);
1974             goto fail;
1975         }
1976         fi = stream_maps[i].sync_file_index;
1977         si = stream_maps[i].sync_stream_index;
1978         if (fi < 0 || fi > nb_input_files - 1 ||
1979             si < 0 || si > file_table[fi].nb_streams - 1) {
1980             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1981             ret = AVERROR(EINVAL);
1982             goto fail;
1983         }
1984     }
1985
1986     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1987     if (!ost_table)
1988         goto fail;
1989     n = 0;
1990     for(k=0;k<nb_output_files;k++) {
1991         os = output_files[k];
1992         for(i=0;i<os->nb_streams;i++,n++) {
1993             int found;
1994             ost = ost_table[n] = output_streams_for_file[k][i];
1995             ost->st = os->streams[i];
1996             if (nb_stream_maps > 0) {
1997                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1998                     stream_maps[n].stream_index;
1999
2000                 /* Sanity check that the stream types match */
2001                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2002                     int i= ost->file_index;
2003                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2004                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2005                         stream_maps[n].file_index, stream_maps[n].stream_index,
2006                         ost->file_index, ost->index);
2007                     ffmpeg_exit(1);
2008                 }
2009
2010             } else {
2011                 int best_nb_frames=-1;
2012                 /* get corresponding input stream index : we select the first one with the right type */
2013                 found = 0;
2014                 for(j=0;j<nb_istreams;j++) {
2015                     int skip=0;
2016                     ist = ist_table[j];
2017                     if(opt_programid){
2018                         int pi,si;
2019                         AVFormatContext *f= input_files[ ist->file_index ];
2020                         skip=1;
2021                         for(pi=0; pi<f->nb_programs; pi++){
2022                             AVProgram *p= f->programs[pi];
2023                             if(p->id == opt_programid)
2024                                 for(si=0; si<p->nb_stream_indexes; si++){
2025                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2026                                         skip=0;
2027                                 }
2028                         }
2029                     }
2030                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2031                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2032                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2033                             best_nb_frames= ist->st->codec_info_nb_frames;
2034                             ost->source_index = j;
2035                             found = 1;
2036                         }
2037                     }
2038                 }
2039
2040                 if (!found) {
2041                     if(! opt_programid) {
2042                         /* try again and reuse existing stream */
2043                         for(j=0;j<nb_istreams;j++) {
2044                             ist = ist_table[j];
2045                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2046                                 && ist->st->discard != AVDISCARD_ALL) {
2047                                 ost->source_index = j;
2048                                 found = 1;
2049                             }
2050                         }
2051                     }
2052                     if (!found) {
2053                         int i= ost->file_index;
2054                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2055                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2056                                 ost->file_index, ost->index);
2057                         ffmpeg_exit(1);
2058                     }
2059                 }
2060             }
2061             ist = ist_table[ost->source_index];
2062             ist->discard = 0;
2063             ost->sync_ist = (nb_stream_maps > 0) ?
2064                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2065                          stream_maps[n].sync_stream_index] : ist;
2066         }
2067     }
2068
2069     /* for each output stream, we compute the right encoding parameters */
2070     for(i=0;i<nb_ostreams;i++) {
2071         ost = ost_table[i];
2072         os = output_files[ost->file_index];
2073         ist = ist_table[ost->source_index];
2074
2075         codec = ost->st->codec;
2076         icodec = ist->st->codec;
2077
2078         if (metadata_streams_autocopy)
2079             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2080                              AV_METADATA_DONT_OVERWRITE);
2081
2082         ost->st->disposition = ist->st->disposition;
2083         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2084         codec->chroma_sample_location = icodec->chroma_sample_location;
2085
2086         if (ost->st->stream_copy) {
2087             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2088
2089             if (extra_size > INT_MAX)
2090                 goto fail;
2091
2092             /* if stream_copy is selected, no need to decode or encode */
2093             codec->codec_id = icodec->codec_id;
2094             codec->codec_type = icodec->codec_type;
2095
2096             if(!codec->codec_tag){
2097                 if(   !os->oformat->codec_tag
2098                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2099                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2100                     codec->codec_tag = icodec->codec_tag;
2101             }
2102
2103             codec->bit_rate = icodec->bit_rate;
2104             codec->rc_max_rate    = icodec->rc_max_rate;
2105             codec->rc_buffer_size = icodec->rc_buffer_size;
2106             codec->extradata= av_mallocz(extra_size);
2107             if (!codec->extradata)
2108                 goto fail;
2109             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2110             codec->extradata_size= icodec->extradata_size;
2111             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){
2112                 codec->time_base = icodec->time_base;
2113                 codec->time_base.num *= icodec->ticks_per_frame;
2114                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2115                           codec->time_base.num, codec->time_base.den, INT_MAX);
2116             }else
2117                 codec->time_base = ist->st->time_base;
2118             switch(codec->codec_type) {
2119             case AVMEDIA_TYPE_AUDIO:
2120                 if(audio_volume != 256) {
2121                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2122                     ffmpeg_exit(1);
2123                 }
2124                 codec->channel_layout = icodec->channel_layout;
2125                 codec->sample_rate = icodec->sample_rate;
2126                 codec->channels = icodec->channels;
2127                 codec->frame_size = icodec->frame_size;
2128                 codec->audio_service_type = icodec->audio_service_type;
2129                 codec->block_align= icodec->block_align;
2130                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2131                     codec->block_align= 0;
2132                 if(codec->codec_id == CODEC_ID_AC3)
2133                     codec->block_align= 0;
2134                 break;
2135             case AVMEDIA_TYPE_VIDEO:
2136                 codec->pix_fmt = icodec->pix_fmt;
2137                 codec->width = icodec->width;
2138                 codec->height = icodec->height;
2139                 codec->has_b_frames = icodec->has_b_frames;
2140                 break;
2141             case AVMEDIA_TYPE_SUBTITLE:
2142                 codec->width = icodec->width;
2143                 codec->height = icodec->height;
2144                 break;
2145             case AVMEDIA_TYPE_DATA:
2146                 break;
2147             default:
2148                 abort();
2149             }
2150         } else {
2151             switch(codec->codec_type) {
2152             case AVMEDIA_TYPE_AUDIO:
2153                 ost->fifo= av_fifo_alloc(1024);
2154                 if(!ost->fifo)
2155                     goto fail;
2156                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2157                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2158                 icodec->request_channels = codec->channels;
2159                 ist->decoding_needed = 1;
2160                 ost->encoding_needed = 1;
2161                 ost->resample_sample_fmt  = icodec->sample_fmt;
2162                 ost->resample_sample_rate = icodec->sample_rate;
2163                 ost->resample_channels    = icodec->channels;
2164                 break;
2165             case AVMEDIA_TYPE_VIDEO:
2166                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2167                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2168                     ffmpeg_exit(1);
2169                 }
2170                 ost->video_resample = (codec->width != icodec->width   ||
2171                                        codec->height != icodec->height ||
2172                         (codec->pix_fmt != icodec->pix_fmt));
2173                 if (ost->video_resample) {
2174 #if !CONFIG_AVFILTER
2175                     avcodec_get_frame_defaults(&ost->pict_tmp);
2176                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2177                                          codec->width, codec->height)) {
2178                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2179                         ffmpeg_exit(1);
2180                     }
2181                     ost->img_resample_ctx = sws_getContext(
2182                         icodec->width,
2183                         icodec->height,
2184                             icodec->pix_fmt,
2185                             codec->width,
2186                             codec->height,
2187                             codec->pix_fmt,
2188                             ost->sws_flags, NULL, NULL, NULL);
2189                     if (ost->img_resample_ctx == NULL) {
2190                         fprintf(stderr, "Cannot get resampling context\n");
2191                         ffmpeg_exit(1);
2192                     }
2193
2194                     ost->original_height = icodec->height;
2195                     ost->original_width  = icodec->width;
2196 #endif
2197                     codec->bits_per_raw_sample= 0;
2198                 }
2199                 ost->resample_height = icodec->height;
2200                 ost->resample_width  = icodec->width;
2201                 ost->resample_pix_fmt= icodec->pix_fmt;
2202                 ost->encoding_needed = 1;
2203                 ist->decoding_needed = 1;
2204
2205 #if CONFIG_AVFILTER
2206                 if (configure_filters(ist, ost)) {
2207                     fprintf(stderr, "Error opening filters!\n");
2208                     exit(1);
2209                 }
2210 #endif
2211                 break;
2212             case AVMEDIA_TYPE_SUBTITLE:
2213                 ost->encoding_needed = 1;
2214                 ist->decoding_needed = 1;
2215                 break;
2216             default:
2217                 abort();
2218                 break;
2219             }
2220             /* two pass mode */
2221             if (ost->encoding_needed &&
2222                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2223                 char logfilename[1024];
2224                 FILE *f;
2225
2226                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2227                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2228                          i);
2229                 if (codec->flags & CODEC_FLAG_PASS1) {
2230                     f = fopen(logfilename, "wb");
2231                     if (!f) {
2232                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2233                         ffmpeg_exit(1);
2234                     }
2235                     ost->logfile = f;
2236                 } else {
2237                     char  *logbuffer;
2238                     size_t logbuffer_size;
2239                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2240                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2241                         ffmpeg_exit(1);
2242                     }
2243                     codec->stats_in = logbuffer;
2244                 }
2245             }
2246         }
2247         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2248             int size= codec->width * codec->height;
2249             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2250         }
2251     }
2252
2253     if (!bit_buffer)
2254         bit_buffer = av_malloc(bit_buffer_size);
2255     if (!bit_buffer) {
2256         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2257                 bit_buffer_size);
2258         ret = AVERROR(ENOMEM);
2259         goto fail;
2260     }
2261
2262     /* open each encoder */
2263     for(i=0;i<nb_ostreams;i++) {
2264         ost = ost_table[i];
2265         if (ost->encoding_needed) {
2266             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2267             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2268             if (!codec)
2269                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2270             if (!codec) {
2271                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2272                          ost->st->codec->codec_id, ost->file_index, ost->index);
2273                 ret = AVERROR(EINVAL);
2274                 goto dump_format;
2275             }
2276             if (dec->subtitle_header) {
2277                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2278                 if (!ost->st->codec->subtitle_header) {
2279                     ret = AVERROR(ENOMEM);
2280                     goto dump_format;
2281                 }
2282                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2283                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2284             }
2285             if (avcodec_open(ost->st->codec, codec) < 0) {
2286                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2287                         ost->file_index, ost->index);
2288                 ret = AVERROR(EINVAL);
2289                 goto dump_format;
2290             }
2291             extra_size += ost->st->codec->extradata_size;
2292         }
2293     }
2294
2295     /* open each decoder */
2296     for(i=0;i<nb_istreams;i++) {
2297         ist = ist_table[i];
2298         if (ist->decoding_needed) {
2299             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2300             if (!codec)
2301                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2302             if (!codec) {
2303                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2304                         ist->st->codec->codec_id, ist->file_index, ist->index);
2305                 ret = AVERROR(EINVAL);
2306                 goto dump_format;
2307             }
2308             if (avcodec_open(ist->st->codec, codec) < 0) {
2309                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2310                         ist->file_index, ist->index);
2311                 ret = AVERROR(EINVAL);
2312                 goto dump_format;
2313             }
2314             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2315             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2316         }
2317     }
2318
2319     /* init pts */
2320     for(i=0;i<nb_istreams;i++) {
2321         AVStream *st;
2322         ist = ist_table[i];
2323         st= ist->st;
2324         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2325         ist->next_pts = AV_NOPTS_VALUE;
2326         init_pts_correction(&ist->pts_ctx);
2327         ist->is_start = 1;
2328     }
2329
2330     /* set meta data information from input file if required */
2331     for (i=0;i<nb_meta_data_maps;i++) {
2332         AVFormatContext *files[2];
2333         AVMetadata      **meta[2];
2334         int j;
2335
2336 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2337         if ((index) < 0 || (index) >= (nb_elems)) {\
2338             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2339                      (desc), (index));\
2340             ret = AVERROR(EINVAL);\
2341             goto dump_format;\
2342         }
2343
2344         int out_file_index = meta_data_maps[i][0].file;
2345         int in_file_index = meta_data_maps[i][1].file;
2346         if (in_file_index < 0 || out_file_index < 0)
2347             continue;
2348         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2349         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2350
2351         files[0] = output_files[out_file_index];
2352         files[1] = input_files[in_file_index];
2353
2354         for (j = 0; j < 2; j++) {
2355             AVMetaDataMap *map = &meta_data_maps[i][j];
2356
2357             switch (map->type) {
2358             case 'g':
2359                 meta[j] = &files[j]->metadata;
2360                 break;
2361             case 's':
2362                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2363                 meta[j] = &files[j]->streams[map->index]->metadata;
2364                 break;
2365             case 'c':
2366                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2367                 meta[j] = &files[j]->chapters[map->index]->metadata;
2368                 break;
2369             case 'p':
2370                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2371                 meta[j] = &files[j]->programs[map->index]->metadata;
2372                 break;
2373             }
2374         }
2375
2376         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2377     }
2378
2379     /* copy global metadata by default */
2380     if (metadata_global_autocopy) {
2381
2382         for (i = 0; i < nb_output_files; i++)
2383             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2384                              AV_METADATA_DONT_OVERWRITE);
2385     }
2386
2387     /* copy chapters according to chapter maps */
2388     for (i = 0; i < nb_chapter_maps; i++) {
2389         int infile  = chapter_maps[i].in_file;
2390         int outfile = chapter_maps[i].out_file;
2391
2392         if (infile < 0 || outfile < 0)
2393             continue;
2394         if (infile >= nb_input_files) {
2395             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2396             ret = AVERROR(EINVAL);
2397             goto dump_format;
2398         }
2399         if (outfile >= nb_output_files) {
2400             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2401             ret = AVERROR(EINVAL);
2402             goto dump_format;
2403         }
2404         copy_chapters(infile, outfile);
2405     }
2406
2407     /* copy chapters from the first input file that has them*/
2408     if (!nb_chapter_maps)
2409         for (i = 0; i < nb_input_files; i++) {
2410             if (!input_files[i]->nb_chapters)
2411                 continue;
2412
2413             for (j = 0; j < nb_output_files; j++)
2414                 if ((ret = copy_chapters(i, j)) < 0)
2415                     goto dump_format;
2416             break;
2417         }
2418
2419     /* open files and write file headers */
2420     for(i=0;i<nb_output_files;i++) {
2421         os = output_files[i];
2422         if (av_write_header(os) < 0) {
2423             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2424             ret = AVERROR(EINVAL);
2425             goto dump_format;
2426         }
2427         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2428             want_sdp = 0;
2429         }
2430     }
2431
2432  dump_format:
2433     /* dump the file output parameters - cannot be done before in case
2434        of stream copy */
2435     for(i=0;i<nb_output_files;i++) {
2436         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2437     }
2438
2439     /* dump the stream mapping */
2440     if (verbose >= 0) {
2441         fprintf(stderr, "Stream mapping:\n");
2442         for(i=0;i<nb_ostreams;i++) {
2443             ost = ost_table[i];
2444             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2445                     ist_table[ost->source_index]->file_index,
2446                     ist_table[ost->source_index]->index,
2447                     ost->file_index,
2448                     ost->index);
2449             if (ost->sync_ist != ist_table[ost->source_index])
2450                 fprintf(stderr, " [sync #%d.%d]",
2451                         ost->sync_ist->file_index,
2452                         ost->sync_ist->index);
2453             fprintf(stderr, "\n");
2454         }
2455     }
2456
2457     if (ret) {
2458         fprintf(stderr, "%s\n", error);
2459         goto fail;
2460     }
2461
2462     if (want_sdp) {
2463         print_sdp(output_files, nb_output_files);
2464     }
2465
2466     if (!using_stdin && verbose >= 0) {
2467 #if HAVE_KBHIT
2468         fprintf(stderr, "Press [q] to stop encoding\n");
2469 #else
2470         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2471 #endif
2472         avio_set_interrupt_cb(decode_interrupt_cb);
2473     }
2474     term_init();
2475
2476     timer_start = av_gettime();
2477
2478     for(; received_sigterm == 0;) {
2479         int file_index, ist_index;
2480         AVPacket pkt;
2481         double ipts_min;
2482         double opts_min;
2483
2484     redo:
2485         ipts_min= 1e100;
2486         opts_min= 1e100;
2487         /* if 'q' pressed, exits */
2488         if (!using_stdin) {
2489             if (q_pressed)
2490                 break;
2491             /* read_key() returns 0 on EOF */
2492             key = read_key();
2493             if (key == 'q')
2494                 break;
2495         }
2496
2497         /* select the stream that we must read now by looking at the
2498            smallest output pts */
2499         file_index = -1;
2500         for(i=0;i<nb_ostreams;i++) {
2501             double ipts, opts;
2502             ost = ost_table[i];
2503             os = output_files[ost->file_index];
2504             ist = ist_table[ost->source_index];
2505             if(ist->is_past_recording_time || no_packet[ist->file_index])
2506                 continue;
2507                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2508             ipts = (double)ist->pts;
2509             if (!file_table[ist->file_index].eof_reached){
2510                 if(ipts < ipts_min) {
2511                     ipts_min = ipts;
2512                     if(input_sync ) file_index = ist->file_index;
2513                 }
2514                 if(opts < opts_min) {
2515                     opts_min = opts;
2516                     if(!input_sync) file_index = ist->file_index;
2517                 }
2518             }
2519             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2520                 file_index= -1;
2521                 break;
2522             }
2523         }
2524         /* if none, if is finished */
2525         if (file_index < 0) {
2526             if(no_packet_count){
2527                 no_packet_count=0;
2528                 memset(no_packet, 0, sizeof(no_packet));
2529                 usleep(10000);
2530                 continue;
2531             }
2532             break;
2533         }
2534
2535         /* finish if limit size exhausted */
2536         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2537             break;
2538
2539         /* read a frame from it and output it in the fifo */
2540         is = input_files[file_index];
2541         ret= av_read_frame(is, &pkt);
2542         if(ret == AVERROR(EAGAIN)){
2543             no_packet[file_index]=1;
2544             no_packet_count++;
2545             continue;
2546         }
2547         if (ret < 0) {
2548             file_table[file_index].eof_reached = 1;
2549             if (opt_shortest)
2550                 break;
2551             else
2552                 continue;
2553         }
2554
2555         no_packet_count=0;
2556         memset(no_packet, 0, sizeof(no_packet));
2557
2558         if (do_pkt_dump) {
2559             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2560                              is->streams[pkt.stream_index]);
2561         }
2562         /* the following test is needed in case new streams appear
2563            dynamically in stream : we ignore them */
2564         if (pkt.stream_index >= file_table[file_index].nb_streams)
2565             goto discard_packet;
2566         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2567         ist = ist_table[ist_index];
2568         if (ist->discard)
2569             goto discard_packet;
2570
2571         if (pkt.dts != AV_NOPTS_VALUE)
2572             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2573         if (pkt.pts != AV_NOPTS_VALUE)
2574             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2575
2576         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2577             && input_files_ts_scale[file_index][pkt.stream_index]){
2578             if(pkt.pts != AV_NOPTS_VALUE)
2579                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2580             if(pkt.dts != AV_NOPTS_VALUE)
2581                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2582         }
2583
2584 //        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);
2585         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2586             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2587             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2588             int64_t delta= pkt_dts - ist->next_pts;
2589             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2590                 input_files_ts_offset[ist->file_index]-= delta;
2591                 if (verbose > 2)
2592                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2593                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2594                 if(pkt.pts != AV_NOPTS_VALUE)
2595                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2596             }
2597         }
2598
2599         /* finish if recording time exhausted */
2600         if (recording_time != INT64_MAX &&
2601             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2602             ist->is_past_recording_time = 1;
2603             goto discard_packet;
2604         }
2605
2606         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2607         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2608
2609             if (verbose >= 0)
2610                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2611                         ist->file_index, ist->index);
2612             if (exit_on_error)
2613                 ffmpeg_exit(1);
2614             av_free_packet(&pkt);
2615             goto redo;
2616         }
2617
2618     discard_packet:
2619         av_free_packet(&pkt);
2620
2621         /* dump report by using the output first video and audio streams */
2622         print_report(output_files, ost_table, nb_ostreams, 0);
2623     }
2624
2625     /* at the end of stream, we must flush the decoder buffers */
2626     for(i=0;i<nb_istreams;i++) {
2627         ist = ist_table[i];
2628         if (ist->decoding_needed) {
2629             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2630         }
2631     }
2632
2633     term_exit();
2634
2635     /* write the trailer if needed and close file */
2636     for(i=0;i<nb_output_files;i++) {
2637         os = output_files[i];
2638         av_write_trailer(os);
2639     }
2640
2641     /* dump report by using the first video and audio streams */
2642     print_report(output_files, ost_table, nb_ostreams, 1);
2643
2644     /* close each encoder */
2645     for(i=0;i<nb_ostreams;i++) {
2646         ost = ost_table[i];
2647         if (ost->encoding_needed) {
2648             av_freep(&ost->st->codec->stats_in);
2649             avcodec_close(ost->st->codec);
2650         }
2651     }
2652
2653     /* close each decoder */
2654     for(i=0;i<nb_istreams;i++) {
2655         ist = ist_table[i];
2656         if (ist->decoding_needed) {
2657             avcodec_close(ist->st->codec);
2658         }
2659     }
2660 #if CONFIG_AVFILTER
2661     avfilter_graph_free(&graph);
2662 #endif
2663
2664     /* finished ! */
2665     ret = 0;
2666
2667  fail:
2668     av_freep(&bit_buffer);
2669     av_free(file_table);
2670
2671     if (ist_table) {
2672         for(i=0;i<nb_istreams;i++) {
2673             ist = ist_table[i];
2674             av_free(ist);
2675         }
2676         av_free(ist_table);
2677     }
2678     if (ost_table) {
2679         for(i=0;i<nb_ostreams;i++) {
2680             ost = ost_table[i];
2681             if (ost) {
2682                 if (ost->st->stream_copy)
2683                     av_freep(&ost->st->codec->extradata);
2684                 if (ost->logfile) {
2685                     fclose(ost->logfile);
2686                     ost->logfile = NULL;
2687                 }
2688                 av_fifo_free(ost->fifo); /* works even if fifo is not
2689                                              initialized but set to zero */
2690                 av_freep(&ost->st->codec->subtitle_header);
2691                 av_free(ost->pict_tmp.data[0]);
2692                 av_free(ost->forced_kf_pts);
2693                 if (ost->video_resample)
2694                     sws_freeContext(ost->img_resample_ctx);
2695                 if (ost->resample)
2696                     audio_resample_close(ost->resample);
2697                 if (ost->reformat_ctx)
2698                     av_audio_convert_free(ost->reformat_ctx);
2699                 av_free(ost);
2700             }
2701         }
2702         av_free(ost_table);
2703     }
2704     return ret;
2705 }
2706
2707 static void opt_format(const char *arg)
2708 {
2709     last_asked_format = arg;
2710 }
2711
2712 static void opt_video_rc_override_string(const char *arg)
2713 {
2714     video_rc_override_string = arg;
2715 }
2716
2717 static int opt_me_threshold(const char *opt, const char *arg)
2718 {
2719     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2720     return 0;
2721 }
2722
2723 static int opt_verbose(const char *opt, const char *arg)
2724 {
2725     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2726     return 0;
2727 }
2728
2729 static int opt_frame_rate(const char *opt, const char *arg)
2730 {
2731     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2732         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2733         ffmpeg_exit(1);
2734     }
2735     return 0;
2736 }
2737
2738 static int opt_bitrate(const char *opt, const char *arg)
2739 {
2740     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2741
2742     opt_default(opt, arg);
2743
2744     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2745         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2746
2747     return 0;
2748 }
2749
2750 static int opt_frame_crop(const char *opt, const char *arg)
2751 {
2752     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2753     return AVERROR(EINVAL);
2754 }
2755
2756 static void opt_frame_size(const char *arg)
2757 {
2758     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2759         fprintf(stderr, "Incorrect frame size\n");
2760         ffmpeg_exit(1);
2761     }
2762 }
2763
2764 static int opt_pad(const char *opt, const char *arg) {
2765     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2766     return -1;
2767 }
2768
2769 static void opt_frame_pix_fmt(const char *arg)
2770 {
2771     if (strcmp(arg, "list")) {
2772         frame_pix_fmt = av_get_pix_fmt(arg);
2773         if (frame_pix_fmt == PIX_FMT_NONE) {
2774             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2775             ffmpeg_exit(1);
2776         }
2777     } else {
2778         show_pix_fmts();
2779         ffmpeg_exit(0);
2780     }
2781 }
2782
2783 static void opt_frame_aspect_ratio(const char *arg)
2784 {
2785     int x = 0, y = 0;
2786     double ar = 0;
2787     const char *p;
2788     char *end;
2789
2790     p = strchr(arg, ':');
2791     if (p) {
2792         x = strtol(arg, &end, 10);
2793         if (end == p)
2794             y = strtol(end+1, &end, 10);
2795         if (x > 0 && y > 0)
2796             ar = (double)x / (double)y;
2797     } else
2798         ar = strtod(arg, NULL);
2799
2800     if (!ar) {
2801         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2802         ffmpeg_exit(1);
2803     }
2804     frame_aspect_ratio = ar;
2805
2806 #if CONFIG_AVFILTER
2807     x = vfilters ? strlen(vfilters) : 0;
2808     vfilters = av_realloc(vfilters, x+100);
2809     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2810 #endif
2811 }
2812
2813 static int opt_metadata(const char *opt, const char *arg)
2814 {
2815     char *mid= strchr(arg, '=');
2816
2817     if(!mid){
2818         fprintf(stderr, "Missing =\n");
2819         ffmpeg_exit(1);
2820     }
2821     *mid++= 0;
2822
2823     av_metadata_set2(&metadata, arg, mid, 0);
2824
2825     return 0;
2826 }
2827
2828 static void opt_qscale(const char *arg)
2829 {
2830     video_qscale = atof(arg);
2831     if (video_qscale <= 0 ||
2832         video_qscale > 255) {
2833         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2834         ffmpeg_exit(1);
2835     }
2836 }
2837
2838 static void opt_top_field_first(const char *arg)
2839 {
2840     top_field_first= atoi(arg);
2841 }
2842
2843 static int opt_thread_count(const char *opt, const char *arg)
2844 {
2845     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2846 #if !HAVE_THREADS
2847     if (verbose >= 0)
2848         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2849 #endif
2850     return 0;
2851 }
2852
2853 static void opt_audio_sample_fmt(const char *arg)
2854 {
2855     if (strcmp(arg, "list")) {
2856         audio_sample_fmt = av_get_sample_fmt(arg);
2857         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2858             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2859             ffmpeg_exit(1);
2860         }
2861     } else {
2862         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2863         ffmpeg_exit(0);
2864     }
2865 }
2866
2867 static int opt_audio_rate(const char *opt, const char *arg)
2868 {
2869     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2870     return 0;
2871 }
2872
2873 static int opt_audio_channels(const char *opt, const char *arg)
2874 {
2875     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2876     return 0;
2877 }
2878
2879 static void opt_video_channel(const char *arg)
2880 {
2881     video_channel = strtol(arg, NULL, 0);
2882 }
2883
2884 static void opt_video_standard(const char *arg)
2885 {
2886     video_standard = av_strdup(arg);
2887 }
2888
2889 static void opt_codec(int *pstream_copy, char **pcodec_name,
2890                       int codec_type, const char *arg)
2891 {
2892     av_freep(pcodec_name);
2893     if (!strcmp(arg, "copy")) {
2894         *pstream_copy = 1;
2895     } else {
2896         *pcodec_name = av_strdup(arg);
2897     }
2898 }
2899
2900 static void opt_audio_codec(const char *arg)
2901 {
2902     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2903 }
2904
2905 static void opt_video_codec(const char *arg)
2906 {
2907     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2908 }
2909
2910 static void opt_subtitle_codec(const char *arg)
2911 {
2912     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2913 }
2914
2915 static void opt_data_codec(const char *arg)
2916 {
2917     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2918 }
2919
2920 static int opt_codec_tag(const char *opt, const char *arg)
2921 {
2922     char *tail;
2923     uint32_t *codec_tag;
2924
2925     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2926                 !strcmp(opt, "vtag") ? &video_codec_tag :
2927                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2928     if (!codec_tag)
2929         return -1;
2930
2931     *codec_tag = strtol(arg, &tail, 0);
2932     if (!tail || *tail)
2933         *codec_tag = AV_RL32(arg);
2934
2935     return 0;
2936 }
2937
2938 static void opt_map(const char *arg)
2939 {
2940     AVStreamMap *m;
2941     char *p;
2942
2943     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2944     m = &stream_maps[nb_stream_maps-1];
2945
2946     m->file_index = strtol(arg, &p, 0);
2947     if (*p)
2948         p++;
2949
2950     m->stream_index = strtol(p, &p, 0);
2951     if (*p) {
2952         p++;
2953         m->sync_file_index = strtol(p, &p, 0);
2954         if (*p)
2955             p++;
2956         m->sync_stream_index = strtol(p, &p, 0);
2957     } else {
2958         m->sync_file_index = m->file_index;
2959         m->sync_stream_index = m->stream_index;
2960     }
2961 }
2962
2963 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2964 {
2965     *endptr = arg;
2966     if (*arg == ',') {
2967         *type = *(++arg);
2968         switch (*arg) {
2969         case 'g':
2970             break;
2971         case 's':
2972         case 'c':
2973         case 'p':
2974             *index = strtol(++arg, endptr, 0);
2975             break;
2976         default:
2977             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2978             ffmpeg_exit(1);
2979         }
2980     } else
2981         *type = 'g';
2982 }
2983
2984 static void opt_map_metadata(const char *arg)
2985 {
2986     AVMetaDataMap *m, *m1;
2987     char *p;
2988
2989     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2990                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2991
2992     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2993     m->file = strtol(arg, &p, 0);
2994     parse_meta_type(p, &m->type, &m->index, &p);
2995     if (*p)
2996         p++;
2997
2998     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
2999     m1->file = strtol(p, &p, 0);
3000     parse_meta_type(p, &m1->type, &m1->index, &p);
3001
3002     if (m->type == 'g' || m1->type == 'g')
3003         metadata_global_autocopy = 0;
3004     if (m->type == 's' || m1->type == 's')
3005         metadata_streams_autocopy = 0;
3006     if (m->type == 'c' || m1->type == 'c')
3007         metadata_chapters_autocopy = 0;
3008 }
3009
3010 static void opt_map_meta_data(const char *arg)
3011 {
3012     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3013                     "Use -map_metadata instead.\n");
3014     opt_map_metadata(arg);
3015 }
3016
3017 static void opt_map_chapters(const char *arg)
3018 {
3019     AVChapterMap *c;
3020     char *p;
3021
3022     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3023                               nb_chapter_maps + 1);
3024     c = &chapter_maps[nb_chapter_maps - 1];
3025     c->out_file = strtol(arg, &p, 0);
3026     if (*p)
3027         p++;
3028
3029     c->in_file = strtol(p, &p, 0);
3030 }
3031
3032 static void opt_input_ts_scale(const char *arg)
3033 {
3034     unsigned int stream;
3035     double scale;
3036     char *p;
3037
3038     stream = strtol(arg, &p, 0);
3039     if (*p)
3040         p++;
3041     scale= strtod(p, &p);
3042
3043     if(stream >= MAX_STREAMS)
3044         ffmpeg_exit(1);
3045
3046     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);
3047     input_files_ts_scale[nb_input_files][stream]= scale;
3048 }
3049
3050 static int opt_recording_time(const char *opt, const char *arg)
3051 {
3052     recording_time = parse_time_or_die(opt, arg, 1);
3053     return 0;
3054 }
3055
3056 static int opt_start_time(const char *opt, const char *arg)
3057 {
3058     start_time = parse_time_or_die(opt, arg, 1);
3059     return 0;
3060 }
3061
3062 static int opt_recording_timestamp(const char *opt, const char *arg)
3063 {
3064     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3065     return 0;
3066 }
3067
3068 static int opt_input_ts_offset(const char *opt, const char *arg)
3069 {
3070     input_ts_offset = parse_time_or_die(opt, arg, 1);
3071     return 0;
3072 }
3073
3074 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3075 {
3076     const char *codec_string = encoder ? "encoder" : "decoder";
3077     AVCodec *codec;
3078
3079     if(!name)
3080         return CODEC_ID_NONE;
3081     codec = encoder ?
3082         avcodec_find_encoder_by_name(name) :
3083         avcodec_find_decoder_by_name(name);
3084     if(!codec) {
3085         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3086         ffmpeg_exit(1);
3087     }
3088     if(codec->type != type) {
3089         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3090         ffmpeg_exit(1);
3091     }
3092     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3093        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3094         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3095                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3096                 codec_string, codec->name);
3097         codec = encoder ?
3098             avcodec_find_encoder(codec->id) :
3099             avcodec_find_decoder(codec->id);
3100         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3101             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3102                     codec_string, codec->name);
3103         ffmpeg_exit(1);
3104     }
3105     return codec->id;
3106 }
3107
3108 static void opt_input_file(const char *filename)
3109 {
3110     AVFormatContext *ic;
3111     AVFormatParameters params, *ap = &params;
3112     AVInputFormat *file_iformat = NULL;
3113     int err, i, ret, rfps, rfps_base;
3114     int64_t timestamp;
3115
3116     if (last_asked_format) {
3117         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3118             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3119             ffmpeg_exit(1);
3120         }
3121         last_asked_format = NULL;
3122     }
3123
3124     if (!strcmp(filename, "-"))
3125         filename = "pipe:";
3126
3127     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3128                     !strcmp(filename, "/dev/stdin");
3129
3130     /* get default parameters from command line */
3131     ic = avformat_alloc_context();
3132     if (!ic) {
3133         print_error(filename, AVERROR(ENOMEM));
3134         ffmpeg_exit(1);
3135     }
3136
3137     memset(ap, 0, sizeof(*ap));
3138     ap->prealloced_context = 1;
3139     ap->sample_rate = audio_sample_rate;
3140     ap->channels = audio_channels;
3141     ap->time_base.den = frame_rate.num;
3142     ap->time_base.num = frame_rate.den;
3143     ap->width = frame_width;
3144     ap->height = frame_height;
3145     ap->pix_fmt = frame_pix_fmt;
3146    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3147     ap->channel = video_channel;
3148     ap->standard = video_standard;
3149
3150     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3151
3152     ic->video_codec_id   =
3153         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3154                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3155     ic->audio_codec_id   =
3156         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3157                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3158     ic->subtitle_codec_id=
3159         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3160                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3161     ic->flags |= AVFMT_FLAG_NONBLOCK;
3162
3163     /* open the input file with generic libav function */
3164     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3165     if (err < 0) {
3166         print_error(filename, err);
3167         ffmpeg_exit(1);
3168     }
3169     if(opt_programid) {
3170         int i, j;
3171         int found=0;
3172         for(i=0; i<ic->nb_streams; i++){
3173             ic->streams[i]->discard= AVDISCARD_ALL;
3174         }
3175         for(i=0; i<ic->nb_programs; i++){
3176             AVProgram *p= ic->programs[i];
3177             if(p->id != opt_programid){
3178                 p->discard = AVDISCARD_ALL;
3179             }else{
3180                 found=1;
3181                 for(j=0; j<p->nb_stream_indexes; j++){
3182                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3183                 }
3184             }
3185         }
3186         if(!found){
3187             fprintf(stderr, "Specified program id not found\n");
3188             ffmpeg_exit(1);
3189         }
3190         opt_programid=0;
3191     }
3192
3193     ic->loop_input = loop_input;
3194
3195     /* If not enough info to get the stream parameters, we decode the
3196        first frames to get it. (used in mpeg case for example) */
3197     ret = av_find_stream_info(ic);
3198     if (ret < 0 && verbose >= 0) {
3199         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3200         av_close_input_file(ic);
3201         ffmpeg_exit(1);
3202     }
3203
3204     timestamp = start_time;
3205     /* add the stream start time */
3206     if (ic->start_time != AV_NOPTS_VALUE)
3207         timestamp += ic->start_time;
3208
3209     /* if seeking requested, we execute it */
3210     if (start_time != 0) {
3211         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3212         if (ret < 0) {
3213             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3214                     filename, (double)timestamp / AV_TIME_BASE);
3215         }
3216         /* reset seek info */
3217         start_time = 0;
3218     }
3219
3220     /* update the current parameters so that they match the one of the input stream */
3221     for(i=0;i<ic->nb_streams;i++) {
3222         AVStream *st = ic->streams[i];
3223         AVCodecContext *dec = st->codec;
3224         dec->thread_count = thread_count;
3225         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3226         switch (dec->codec_type) {
3227         case AVMEDIA_TYPE_AUDIO:
3228             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3229             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]);
3230             channel_layout    = dec->channel_layout;
3231             audio_channels    = dec->channels;
3232             audio_sample_rate = dec->sample_rate;
3233             audio_sample_fmt  = dec->sample_fmt;
3234             if(audio_disable)
3235                 st->discard= AVDISCARD_ALL;
3236             /* Note that av_find_stream_info can add more streams, and we
3237              * currently have no chance of setting up lowres decoding
3238              * early enough for them. */
3239             if (dec->lowres)
3240                 audio_sample_rate >>= dec->lowres;
3241             break;
3242         case AVMEDIA_TYPE_VIDEO:
3243             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3244             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]);
3245             frame_height = dec->height;
3246             frame_width  = dec->width;
3247             if(ic->streams[i]->sample_aspect_ratio.num)
3248                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3249             else
3250                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3251             frame_aspect_ratio *= (float) dec->width / dec->height;
3252             frame_pix_fmt = dec->pix_fmt;
3253             rfps      = ic->streams[i]->r_frame_rate.num;
3254             rfps_base = ic->streams[i]->r_frame_rate.den;
3255             if (dec->lowres) {
3256                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3257                 frame_height >>= dec->lowres;
3258                 frame_width  >>= dec->lowres;
3259                 dec->height = frame_height;
3260                 dec->width  = frame_width;
3261             }
3262             if(me_threshold)
3263                 dec->debug |= FF_DEBUG_MV;
3264
3265             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3266
3267                 if (verbose >= 0)
3268                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3269                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3270
3271                     (float)rfps / rfps_base, rfps, rfps_base);
3272             }
3273             /* update the current frame rate to match the stream frame rate */
3274             frame_rate.num = rfps;
3275             frame_rate.den = rfps_base;
3276
3277             if(video_disable)
3278                 st->discard= AVDISCARD_ALL;
3279             else if(video_discard)
3280                 st->discard= video_discard;
3281             break;
3282         case AVMEDIA_TYPE_DATA:
3283             break;
3284         case AVMEDIA_TYPE_SUBTITLE:
3285             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3286             if(subtitle_disable)
3287                 st->discard = AVDISCARD_ALL;
3288             break;
3289         case AVMEDIA_TYPE_ATTACHMENT:
3290         case AVMEDIA_TYPE_UNKNOWN:
3291             break;
3292         default:
3293             abort();
3294         }
3295     }
3296
3297     input_files[nb_input_files] = ic;
3298     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3299     /* dump the file content */
3300     if (verbose >= 0)
3301         av_dump_format(ic, nb_input_files, filename, 0);
3302
3303     nb_input_files++;
3304
3305     video_channel = 0;
3306
3307     av_freep(&video_codec_name);
3308     av_freep(&audio_codec_name);
3309     av_freep(&subtitle_codec_name);
3310     uninit_opts();
3311     init_opts();
3312 }
3313
3314 static void check_inputs(int *has_video_ptr,
3315                          int *has_audio_ptr,
3316                          int *has_subtitle_ptr,
3317                          int *has_data_ptr)
3318 {
3319     int has_video, has_audio, has_subtitle, has_data, i, j;
3320     AVFormatContext *ic;
3321
3322     has_video = 0;
3323     has_audio = 0;
3324     has_subtitle = 0;
3325     has_data = 0;
3326
3327     for(j=0;j<nb_input_files;j++) {
3328         ic = input_files[j];
3329         for(i=0;i<ic->nb_streams;i++) {
3330             AVCodecContext *enc = ic->streams[i]->codec;
3331             switch(enc->codec_type) {
3332             case AVMEDIA_TYPE_AUDIO:
3333                 has_audio = 1;
3334                 break;
3335             case AVMEDIA_TYPE_VIDEO:
3336                 has_video = 1;
3337                 break;
3338             case AVMEDIA_TYPE_SUBTITLE:
3339                 has_subtitle = 1;
3340                 break;
3341             case AVMEDIA_TYPE_DATA:
3342             case AVMEDIA_TYPE_ATTACHMENT:
3343             case AVMEDIA_TYPE_UNKNOWN:
3344                 has_data = 1;
3345                 break;
3346             default:
3347                 abort();
3348             }
3349         }
3350     }
3351     *has_video_ptr = has_video;
3352     *has_audio_ptr = has_audio;
3353     *has_subtitle_ptr = has_subtitle;
3354     *has_data_ptr = has_data;
3355 }
3356
3357 static void new_video_stream(AVFormatContext *oc, int file_idx)
3358 {
3359     AVStream *st;
3360     AVOutputStream *ost;
3361     AVCodecContext *video_enc;
3362     enum CodecID codec_id = CODEC_ID_NONE;
3363     AVCodec *codec= NULL;
3364
3365     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3366     if (!st) {
3367         fprintf(stderr, "Could not alloc stream\n");
3368         ffmpeg_exit(1);
3369     }
3370     ost = new_output_stream(oc, file_idx);
3371
3372     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3373     if(!video_stream_copy){
3374         if (video_codec_name) {
3375             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3376                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3377             codec = avcodec_find_encoder_by_name(video_codec_name);
3378             output_codecs[nb_output_codecs-1] = codec;
3379         } else {
3380             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3381             codec = avcodec_find_encoder(codec_id);
3382         }
3383     }
3384
3385     avcodec_get_context_defaults3(st->codec, codec);
3386     ost->bitstream_filters = video_bitstream_filters;
3387     video_bitstream_filters= NULL;
3388
3389     st->codec->thread_count= thread_count;
3390
3391     video_enc = st->codec;
3392
3393     if(video_codec_tag)
3394         video_enc->codec_tag= video_codec_tag;
3395
3396     if(   (video_global_header&1)
3397        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3398         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3399         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3400     }
3401     if(video_global_header&2){
3402         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3403         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3404     }
3405
3406     if (video_stream_copy) {
3407         st->stream_copy = 1;
3408         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3409         video_enc->sample_aspect_ratio =
3410         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3411     } else {
3412         const char *p;
3413         int i;
3414         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3415
3416         video_enc->codec_id = codec_id;
3417         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3418
3419         if (codec && codec->supported_framerates && !force_fps)
3420             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3421         video_enc->time_base.den = fps.num;
3422         video_enc->time_base.num = fps.den;
3423
3424         video_enc->width = frame_width;
3425         video_enc->height = frame_height;
3426         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3427         video_enc->pix_fmt = frame_pix_fmt;
3428         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3429
3430         choose_pixel_fmt(st, codec);
3431
3432         if (intra_only)
3433             video_enc->gop_size = 0;
3434         if (video_qscale || same_quality) {
3435             video_enc->flags |= CODEC_FLAG_QSCALE;
3436             video_enc->global_quality=
3437                 st->quality = FF_QP2LAMBDA * video_qscale;
3438         }
3439
3440         if(intra_matrix)
3441             video_enc->intra_matrix = intra_matrix;
3442         if(inter_matrix)
3443             video_enc->inter_matrix = inter_matrix;
3444
3445         p= video_rc_override_string;
3446         for(i=0; p; i++){
3447             int start, end, q;
3448             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3449             if(e!=3){
3450                 fprintf(stderr, "error parsing rc_override\n");
3451                 ffmpeg_exit(1);
3452             }
3453             video_enc->rc_override=
3454                 av_realloc(video_enc->rc_override,
3455                            sizeof(RcOverride)*(i+1));
3456             video_enc->rc_override[i].start_frame= start;
3457             video_enc->rc_override[i].end_frame  = end;
3458             if(q>0){
3459                 video_enc->rc_override[i].qscale= q;
3460                 video_enc->rc_override[i].quality_factor= 1.0;
3461             }
3462             else{
3463                 video_enc->rc_override[i].qscale= 0;
3464                 video_enc->rc_override[i].quality_factor= -q/100.0;
3465             }
3466             p= strchr(p, '/');
3467             if(p) p++;
3468         }
3469         video_enc->rc_override_count=i;
3470         if (!video_enc->rc_initial_buffer_occupancy)
3471             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3472         video_enc->me_threshold= me_threshold;
3473         video_enc->intra_dc_precision= intra_dc_precision - 8;
3474
3475         if (do_psnr)
3476             video_enc->flags|= CODEC_FLAG_PSNR;
3477
3478         /* two pass mode */
3479         if (do_pass) {
3480             if (do_pass == 1) {
3481                 video_enc->flags |= CODEC_FLAG_PASS1;
3482             } else {
3483                 video_enc->flags |= CODEC_FLAG_PASS2;
3484             }
3485         }
3486
3487         if (forced_key_frames)
3488             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3489     }
3490     if (video_language) {
3491         av_metadata_set2(&st->metadata, "language", video_language, 0);
3492         av_freep(&video_language);
3493     }
3494
3495     /* reset some key parameters */
3496     video_disable = 0;
3497     av_freep(&video_codec_name);
3498     av_freep(&forced_key_frames);
3499     video_stream_copy = 0;
3500     frame_pix_fmt = PIX_FMT_NONE;
3501 }
3502
3503 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3504 {
3505     AVStream *st;
3506     AVOutputStream *ost;
3507     AVCodec *codec= NULL;
3508     AVCodecContext *audio_enc;
3509     enum CodecID codec_id = CODEC_ID_NONE;
3510
3511     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3512     if (!st) {
3513         fprintf(stderr, "Could not alloc stream\n");
3514         ffmpeg_exit(1);
3515     }
3516     ost = new_output_stream(oc, file_idx);
3517
3518     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3519     if(!audio_stream_copy){
3520         if (audio_codec_name) {
3521             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3522                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3523             codec = avcodec_find_encoder_by_name(audio_codec_name);
3524             output_codecs[nb_output_codecs-1] = codec;
3525         } else {
3526             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3527             codec = avcodec_find_encoder(codec_id);
3528         }
3529     }
3530
3531     avcodec_get_context_defaults3(st->codec, codec);
3532
3533     ost->bitstream_filters = audio_bitstream_filters;
3534     audio_bitstream_filters= NULL;
3535
3536     st->codec->thread_count= thread_count;
3537
3538     audio_enc = st->codec;
3539     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3540
3541     if(audio_codec_tag)
3542         audio_enc->codec_tag= audio_codec_tag;
3543
3544     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3545         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3546         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3547     }
3548     if (audio_stream_copy) {
3549         st->stream_copy = 1;
3550         audio_enc->channels = audio_channels;
3551         audio_enc->sample_rate = audio_sample_rate;
3552     } else {
3553         audio_enc->codec_id = codec_id;
3554         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3555
3556         if (audio_qscale > QSCALE_NONE) {
3557             audio_enc->flags |= CODEC_FLAG_QSCALE;
3558             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3559         }
3560         audio_enc->channels = audio_channels;
3561         audio_enc->sample_fmt = audio_sample_fmt;
3562         audio_enc->sample_rate = audio_sample_rate;
3563         audio_enc->channel_layout = channel_layout;
3564         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3565             audio_enc->channel_layout = 0;
3566         choose_sample_fmt(st, codec);
3567         choose_sample_rate(st, codec);
3568     }
3569     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3570     if (audio_language) {
3571         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3572         av_freep(&audio_language);
3573     }
3574
3575     /* reset some key parameters */
3576     audio_disable = 0;
3577     av_freep(&audio_codec_name);
3578     audio_stream_copy = 0;
3579 }
3580
3581 static void new_data_stream(AVFormatContext *oc, int file_idx)
3582 {
3583     AVStream *st;
3584     AVOutputStream *ost;
3585     AVCodec *codec=NULL;
3586     AVCodecContext *data_enc;
3587
3588     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3589     if (!st) {
3590         fprintf(stderr, "Could not alloc stream\n");
3591         ffmpeg_exit(1);
3592     }
3593     ost = new_output_stream(oc, file_idx);
3594     data_enc = st->codec;
3595     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3596     if (!data_stream_copy) {
3597         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3598         ffmpeg_exit(1);
3599     }
3600     avcodec_get_context_defaults3(st->codec, codec);
3601
3602     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3603
3604     if (data_codec_tag)
3605         data_enc->codec_tag= data_codec_tag;
3606
3607     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3608         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3609         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3610     }
3611     if (data_stream_copy) {
3612         st->stream_copy = 1;
3613     }
3614
3615     data_disable = 0;
3616     av_freep(&data_codec_name);
3617     data_stream_copy = 0;
3618 }
3619
3620 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3621 {
3622     AVStream *st;
3623     AVOutputStream *ost;
3624     AVCodec *codec=NULL;
3625     AVCodecContext *subtitle_enc;
3626     enum CodecID codec_id = CODEC_ID_NONE;
3627
3628     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3629     if (!st) {
3630         fprintf(stderr, "Could not alloc stream\n");
3631         ffmpeg_exit(1);
3632     }
3633     ost = new_output_stream(oc, file_idx);
3634     subtitle_enc = st->codec;
3635     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3636     if(!subtitle_stream_copy){
3637         if (subtitle_codec_name) {
3638             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3639                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3640             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3641         } else {
3642             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3643             codec = avcodec_find_encoder(codec_id);
3644         }
3645     }
3646     avcodec_get_context_defaults3(st->codec, codec);
3647
3648     ost->bitstream_filters = subtitle_bitstream_filters;
3649     subtitle_bitstream_filters= NULL;
3650
3651     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3652
3653     if(subtitle_codec_tag)
3654         subtitle_enc->codec_tag= subtitle_codec_tag;
3655
3656     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3657         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3658         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3659     }
3660     if (subtitle_stream_copy) {
3661         st->stream_copy = 1;
3662     } else {
3663         subtitle_enc->codec_id = codec_id;
3664         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3665     }
3666
3667     if (subtitle_language) {
3668         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3669         av_freep(&subtitle_language);