ffmpeg: remove unused variable padding_src in do_video_out()
[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_video_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;
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     resampling_dst = &ost->pict_tmp;
1125
1126     if (   ost->resample_height != ist->st->codec->height
1127         || ost->resample_width  != ist->st->codec->width
1128         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1129
1130         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));
1131         if(!ost->video_resample)
1132             ffmpeg_exit(1);
1133     }
1134
1135 #if !CONFIG_AVFILTER
1136     if (ost->video_resample) {
1137         final_picture = &ost->pict_tmp;
1138         if(  ost->resample_height != ist->st->codec->height
1139           || ost->resample_width  != ist->st->codec->width
1140           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1141
1142             /* initialize a new scaler context */
1143             sws_freeContext(ost->img_resample_ctx);
1144             ost->img_resample_ctx = sws_getContext(
1145                 ist->st->codec->width,
1146                 ist->st->codec->height,
1147                 ist->st->codec->pix_fmt,
1148                 ost->st->codec->width,
1149                 ost->st->codec->height,
1150                 ost->st->codec->pix_fmt,
1151                 ost->sws_flags, NULL, NULL, NULL);
1152             if (ost->img_resample_ctx == NULL) {
1153                 fprintf(stderr, "Cannot get resampling context\n");
1154                 ffmpeg_exit(1);
1155             }
1156         }
1157         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1158               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1159     }
1160 #endif
1161
1162     /* duplicates frame if needed */
1163     for(i=0;i<nb_frames;i++) {
1164         AVPacket pkt;
1165         av_init_packet(&pkt);
1166         pkt.stream_index= ost->index;
1167
1168         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1169             /* raw pictures are written as AVPicture structure to
1170                avoid any copies. We support temorarily the older
1171                method. */
1172             AVFrame* old_frame = enc->coded_frame;
1173             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1174             pkt.data= (uint8_t *)final_picture;
1175             pkt.size=  sizeof(AVPicture);
1176             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1177             pkt.flags |= AV_PKT_FLAG_KEY;
1178
1179             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1180             enc->coded_frame = old_frame;
1181         } else {
1182             AVFrame big_picture;
1183
1184             big_picture= *final_picture;
1185             /* better than nothing: use input picture interlaced
1186                settings */
1187             big_picture.interlaced_frame = in_picture->interlaced_frame;
1188             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1189                 if(top_field_first == -1)
1190                     big_picture.top_field_first = in_picture->top_field_first;
1191                 else
1192                     big_picture.top_field_first = top_field_first;
1193             }
1194
1195             /* handles sameq here. This is not correct because it may
1196                not be a global option */
1197             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1198             if(!me_threshold)
1199                 big_picture.pict_type = 0;
1200 //            big_picture.pts = AV_NOPTS_VALUE;
1201             big_picture.pts= ost->sync_opts;
1202 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1203 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1204             if (ost->forced_kf_index < ost->forced_kf_count &&
1205                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1206                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1207                 ost->forced_kf_index++;
1208             }
1209             ret = avcodec_encode_video(enc,
1210                                        bit_buffer, bit_buffer_size,
1211                                        &big_picture);
1212             if (ret < 0) {
1213                 fprintf(stderr, "Video encoding failed\n");
1214                 ffmpeg_exit(1);
1215             }
1216
1217             if(ret>0){
1218                 pkt.data= bit_buffer;
1219                 pkt.size= ret;
1220                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1221                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1222 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1223    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1224    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1225
1226                 if(enc->coded_frame->key_frame)
1227                     pkt.flags |= AV_PKT_FLAG_KEY;
1228                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1229                 *frame_size = ret;
1230                 video_size += ret;
1231                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1232                 //        enc->frame_number-1, ret, enc->pict_type);
1233                 /* if two pass, output log */
1234                 if (ost->logfile && enc->stats_out) {
1235                     fprintf(ost->logfile, "%s", enc->stats_out);
1236                 }
1237             }
1238         }
1239         ost->sync_opts++;
1240         ost->frame_number++;
1241     }
1242 }
1243
1244 static double psnr(double d){
1245     return -10.0*log(d)/log(10.0);
1246 }
1247
1248 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1249                            int frame_size)
1250 {
1251     AVCodecContext *enc;
1252     int frame_number;
1253     double ti1, bitrate, avg_bitrate;
1254
1255     /* this is executed just the first time do_video_stats is called */
1256     if (!vstats_file) {
1257         vstats_file = fopen(vstats_filename, "w");
1258         if (!vstats_file) {
1259             perror("fopen");
1260             ffmpeg_exit(1);
1261         }
1262     }
1263
1264     enc = ost->st->codec;
1265     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1266         frame_number = ost->frame_number;
1267         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1268         if (enc->flags&CODEC_FLAG_PSNR)
1269             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1270
1271         fprintf(vstats_file,"f_size= %6d ", frame_size);
1272         /* compute pts value */
1273         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1274         if (ti1 < 0.01)
1275             ti1 = 0.01;
1276
1277         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1278         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1279         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1280             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1281         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1282     }
1283 }
1284
1285 static void print_report(AVFormatContext **output_files,
1286                          AVOutputStream **ost_table, int nb_ostreams,
1287                          int is_last_report)
1288 {
1289     char buf[1024];
1290     AVOutputStream *ost;
1291     AVFormatContext *oc;
1292     int64_t total_size;
1293     AVCodecContext *enc;
1294     int frame_number, vid, i;
1295     double bitrate, ti1, pts;
1296     static int64_t last_time = -1;
1297     static int qp_histogram[52];
1298
1299     if (!is_last_report) {
1300         int64_t cur_time;
1301         /* display the report every 0.5 seconds */
1302         cur_time = av_gettime();
1303         if (last_time == -1) {
1304             last_time = cur_time;
1305             return;
1306         }
1307         if ((cur_time - last_time) < 500000)
1308             return;
1309         last_time = cur_time;
1310     }
1311
1312
1313     oc = output_files[0];
1314
1315     total_size = avio_size(oc->pb);
1316     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1317         total_size= avio_tell(oc->pb);
1318
1319     buf[0] = '\0';
1320     ti1 = 1e10;
1321     vid = 0;
1322     for(i=0;i<nb_ostreams;i++) {
1323         ost = ost_table[i];
1324         enc = ost->st->codec;
1325         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1327                      !ost->st->stream_copy ?
1328                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1329         }
1330         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1331             float t = (av_gettime()-timer_start) / 1000000.0;
1332
1333             frame_number = ost->frame_number;
1334             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1335                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1336                      !ost->st->stream_copy ?
1337                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1338             if(is_last_report)
1339                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1340             if(qp_hist){
1341                 int j;
1342                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1343                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1344                     qp_histogram[qp]++;
1345                 for(j=0; j<32; j++)
1346                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1347             }
1348             if (enc->flags&CODEC_FLAG_PSNR){
1349                 int j;
1350                 double error, error_sum=0;
1351                 double scale, scale_sum=0;
1352                 char type[3]= {'Y','U','V'};
1353                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1354                 for(j=0; j<3; j++){
1355                     if(is_last_report){
1356                         error= enc->error[j];
1357                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1358                     }else{
1359                         error= enc->coded_frame->error[j];
1360                         scale= enc->width*enc->height*255.0*255.0;
1361                     }
1362                     if(j) scale/=4;
1363                     error_sum += error;
1364                     scale_sum += scale;
1365                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1366                 }
1367                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1368             }
1369             vid = 1;
1370         }
1371         /* compute min output value */
1372         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1373         if ((pts < ti1) && (pts > 0))
1374             ti1 = pts;
1375     }
1376     if (ti1 < 0.01)
1377         ti1 = 0.01;
1378
1379     if (verbose > 0 || is_last_report) {
1380         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1381
1382         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1383             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1384             (double)total_size / 1024, ti1, bitrate);
1385
1386         if (nb_frames_dup || nb_frames_drop)
1387           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1388                   nb_frames_dup, nb_frames_drop);
1389
1390         if (verbose >= 0)
1391             fprintf(stderr, "%s    \r", buf);
1392
1393         fflush(stderr);
1394     }
1395
1396     if (is_last_report && verbose >= 0){
1397         int64_t raw= audio_size + video_size + extra_size;
1398         fprintf(stderr, "\n");
1399         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1400                 video_size/1024.0,
1401                 audio_size/1024.0,
1402                 extra_size/1024.0,
1403                 100.0*(total_size - raw)/raw
1404         );
1405     }
1406 }
1407
1408 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1409 {
1410     int fill_char = 0x00;
1411     if (sample_fmt == AV_SAMPLE_FMT_U8)
1412         fill_char = 0x80;
1413     memset(buf, fill_char, size);
1414 }
1415
1416 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1417 static int output_packet(AVInputStream *ist, int ist_index,
1418                          AVOutputStream **ost_table, int nb_ostreams,
1419                          const AVPacket *pkt)
1420 {
1421     AVFormatContext *os;
1422     AVOutputStream *ost;
1423     int ret, i;
1424     int got_picture;
1425     AVFrame picture;
1426     void *buffer_to_free;
1427     static unsigned int samples_size= 0;
1428     AVSubtitle subtitle, *subtitle_to_free;
1429     int64_t pkt_pts = AV_NOPTS_VALUE;
1430 #if CONFIG_AVFILTER
1431     int frame_available;
1432 #endif
1433
1434     AVPacket avpkt;
1435     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1436
1437     if(ist->next_pts == AV_NOPTS_VALUE)
1438         ist->next_pts= ist->pts;
1439
1440     if (pkt == NULL) {
1441         /* EOF handling */
1442         av_init_packet(&avpkt);
1443         avpkt.data = NULL;
1444         avpkt.size = 0;
1445         goto handle_eof;
1446     } else {
1447         avpkt = *pkt;
1448     }
1449
1450     if(pkt->dts != AV_NOPTS_VALUE)
1451         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1452     if(pkt->pts != AV_NOPTS_VALUE)
1453         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1454
1455     //while we have more to decode or while the decoder did output something on EOF
1456     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1457         uint8_t *data_buf, *decoded_data_buf;
1458         int data_size, decoded_data_size;
1459     handle_eof:
1460         ist->pts= ist->next_pts;
1461
1462         if(avpkt.size && avpkt.size != pkt->size &&
1463            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1464             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1465             ist->showed_multi_packet_warning=1;
1466         }
1467
1468         /* decode the packet if needed */
1469         decoded_data_buf = NULL; /* fail safe */
1470         decoded_data_size= 0;
1471         data_buf  = avpkt.data;
1472         data_size = avpkt.size;
1473         subtitle_to_free = NULL;
1474         if (ist->decoding_needed) {
1475             switch(ist->st->codec->codec_type) {
1476             case AVMEDIA_TYPE_AUDIO:{
1477                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1478                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1479                     av_free(samples);
1480                     samples= av_malloc(samples_size);
1481                 }
1482                 decoded_data_size= samples_size;
1483                     /* XXX: could avoid copy if PCM 16 bits with same
1484                        endianness as CPU */
1485                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1486                                             &avpkt);
1487                 if (ret < 0)
1488                     goto fail_decode;
1489                 avpkt.data += ret;
1490                 avpkt.size -= ret;
1491                 data_size   = ret;
1492                 /* Some bug in mpeg audio decoder gives */
1493                 /* decoded_data_size < 0, it seems they are overflows */
1494                 if (decoded_data_size <= 0) {
1495                     /* no audio frame */
1496                     continue;
1497                 }
1498                 decoded_data_buf = (uint8_t *)samples;
1499                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1500                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1501                 break;}
1502             case AVMEDIA_TYPE_VIDEO:
1503                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1504                     /* XXX: allocate picture correctly */
1505                     avcodec_get_frame_defaults(&picture);
1506                     avpkt.pts = pkt_pts;
1507                     avpkt.dts = ist->pts;
1508                     pkt_pts = AV_NOPTS_VALUE;
1509
1510                     ret = avcodec_decode_video2(ist->st->codec,
1511                                                 &picture, &got_picture, &avpkt);
1512                     ist->st->quality= picture.quality;
1513                     if (ret < 0)
1514                         goto fail_decode;
1515                     if (!got_picture) {
1516                         /* no picture yet */
1517                         goto discard_packet;
1518                     }
1519                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1520                     if (ist->st->codec->time_base.num != 0) {
1521                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1522                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1523                                           ist->st->codec->time_base.num * ticks) /
1524                             ist->st->codec->time_base.den;
1525                     }
1526                     avpkt.size = 0;
1527                     break;
1528             case AVMEDIA_TYPE_SUBTITLE:
1529                 ret = avcodec_decode_subtitle2(ist->st->codec,
1530                                                &subtitle, &got_picture, &avpkt);
1531                 if (ret < 0)
1532                     goto fail_decode;
1533                 if (!got_picture) {
1534                     goto discard_packet;
1535                 }
1536                 subtitle_to_free = &subtitle;
1537                 avpkt.size = 0;
1538                 break;
1539             default:
1540                 goto fail_decode;
1541             }
1542         } else {
1543             switch(ist->st->codec->codec_type) {
1544             case AVMEDIA_TYPE_AUDIO:
1545                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1546                     ist->st->codec->sample_rate;
1547                 break;
1548             case AVMEDIA_TYPE_VIDEO:
1549                 if (ist->st->codec->time_base.num != 0) {
1550                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1551                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1552                                       ist->st->codec->time_base.num * ticks) /
1553                         ist->st->codec->time_base.den;
1554                 }
1555                 break;
1556             }
1557             ret = avpkt.size;
1558             avpkt.size = 0;
1559         }
1560
1561         buffer_to_free = NULL;
1562         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1563             pre_process_video_frame(ist, (AVPicture *)&picture,
1564                                     &buffer_to_free);
1565         }
1566
1567 #if CONFIG_AVFILTER
1568         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1569             AVRational sar;
1570             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1571             else                                  sar = ist->st->codec->sample_aspect_ratio;
1572             // add it to be filtered
1573             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1574                                      ist->pts,
1575                                      sar);
1576         }
1577 #endif
1578
1579         // preprocess audio (volume)
1580         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1581             if (audio_volume != 256) {
1582                 short *volp;
1583                 volp = samples;
1584                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1585                     int v = ((*volp) * audio_volume + 128) >> 8;
1586                     if (v < -32768) v = -32768;
1587                     if (v >  32767) v = 32767;
1588                     *volp++ = v;
1589                 }
1590             }
1591         }
1592
1593         /* frame rate emulation */
1594         if (rate_emu) {
1595             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1596             int64_t now = av_gettime() - ist->start;
1597             if (pts > now)
1598                 usleep(pts - now);
1599         }
1600 #if CONFIG_AVFILTER
1601         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1602             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1603 #endif
1604         /* if output time reached then transcode raw format,
1605            encode packets and output them */
1606         if (start_time == 0 || ist->pts >= start_time)
1607 #if CONFIG_AVFILTER
1608         while (frame_available) {
1609             AVRational ist_pts_tb;
1610             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1611                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1612             if (ist->picref)
1613                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1614 #endif
1615             for(i=0;i<nb_ostreams;i++) {
1616                 int frame_size;
1617
1618                 ost = ost_table[i];
1619                 if (ost->source_index == ist_index) {
1620                     os = output_files[ost->file_index];
1621
1622                     /* set the input output pts pairs */
1623                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1624
1625                     if (ost->encoding_needed) {
1626                         av_assert0(ist->decoding_needed);
1627                         switch(ost->st->codec->codec_type) {
1628                         case AVMEDIA_TYPE_AUDIO:
1629                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1630                             break;
1631                         case AVMEDIA_TYPE_VIDEO:
1632 #if CONFIG_AVFILTER
1633                             if (ist->picref->video)
1634                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1635 #endif
1636                             do_video_out(os, ost, ist, &picture, &frame_size);
1637                             if (vstats_filename && frame_size)
1638                                 do_video_stats(os, ost, frame_size);
1639                             break;
1640                         case AVMEDIA_TYPE_SUBTITLE:
1641                             do_subtitle_out(os, ost, ist, &subtitle,
1642                                             pkt->pts);
1643                             break;
1644                         default:
1645                             abort();
1646                         }
1647                     } else {
1648                         AVFrame avframe; //FIXME/XXX remove this
1649                         AVPacket opkt;
1650                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1651
1652                         av_init_packet(&opkt);
1653
1654                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1655                             continue;
1656
1657                         /* no reencoding needed : output the packet directly */
1658                         /* force the input stream PTS */
1659
1660                         avcodec_get_frame_defaults(&avframe);
1661                         ost->st->codec->coded_frame= &avframe;
1662                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1663
1664                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1665                             audio_size += data_size;
1666                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1667                             video_size += data_size;
1668                             ost->sync_opts++;
1669                         }
1670
1671                         opkt.stream_index= ost->index;
1672                         if(pkt->pts != AV_NOPTS_VALUE)
1673                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1674                         else
1675                             opkt.pts= AV_NOPTS_VALUE;
1676
1677                         if (pkt->dts == AV_NOPTS_VALUE)
1678                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1679                         else
1680                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1681                         opkt.dts -= ost_tb_start_time;
1682
1683                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1684                         opkt.flags= pkt->flags;
1685
1686                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1687                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1688                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1689                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1690                            ) {
1691                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1692                                 opkt.destruct= av_destruct_packet;
1693                         } else {
1694                             opkt.data = data_buf;
1695                             opkt.size = data_size;
1696                         }
1697
1698                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1699                         ost->st->codec->frame_number++;
1700                         ost->frame_number++;
1701                         av_free_packet(&opkt);
1702                     }
1703                 }
1704             }
1705
1706 #if CONFIG_AVFILTER
1707             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1708                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1709             if(ist->picref)
1710                 avfilter_unref_buffer(ist->picref);
1711         }
1712 #endif
1713         av_free(buffer_to_free);
1714         /* XXX: allocate the subtitles in the codec ? */
1715         if (subtitle_to_free) {
1716             avsubtitle_free(subtitle_to_free);
1717             subtitle_to_free = NULL;
1718         }
1719     }
1720  discard_packet:
1721     if (pkt == NULL) {
1722         /* EOF handling */
1723
1724         for(i=0;i<nb_ostreams;i++) {
1725             ost = ost_table[i];
1726             if (ost->source_index == ist_index) {
1727                 AVCodecContext *enc= ost->st->codec;
1728                 os = output_files[ost->file_index];
1729
1730                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1731                     continue;
1732                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1733                     continue;
1734
1735                 if (ost->encoding_needed) {
1736                     for(;;) {
1737                         AVPacket pkt;
1738                         int fifo_bytes;
1739                         av_init_packet(&pkt);
1740                         pkt.stream_index= ost->index;
1741
1742                         switch(ost->st->codec->codec_type) {
1743                         case AVMEDIA_TYPE_AUDIO:
1744                             fifo_bytes = av_fifo_size(ost->fifo);
1745                             ret = 0;
1746                             /* encode any samples remaining in fifo */
1747                             if (fifo_bytes > 0) {
1748                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1749                                 int fs_tmp = enc->frame_size;
1750
1751                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1752                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1753                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1754                                 } else { /* pad */
1755                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1756                                     if (allocated_audio_buf_size < frame_bytes)
1757                                         ffmpeg_exit(1);
1758                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1759                                 }
1760
1761                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1762                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1763                                                           ost->st->time_base.num, enc->sample_rate);
1764                                 enc->frame_size = fs_tmp;
1765                             }
1766                             if(ret <= 0) {
1767                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1768                             }
1769                             if (ret < 0) {
1770                                 fprintf(stderr, "Audio encoding failed\n");
1771                                 ffmpeg_exit(1);
1772                             }
1773                             audio_size += ret;
1774                             pkt.flags |= AV_PKT_FLAG_KEY;
1775                             break;
1776                         case AVMEDIA_TYPE_VIDEO:
1777                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1778                             if (ret < 0) {
1779                                 fprintf(stderr, "Video encoding failed\n");
1780                                 ffmpeg_exit(1);
1781                             }
1782                             video_size += ret;
1783                             if(enc->coded_frame && enc->coded_frame->key_frame)
1784                                 pkt.flags |= AV_PKT_FLAG_KEY;
1785                             if (ost->logfile && enc->stats_out) {
1786                                 fprintf(ost->logfile, "%s", enc->stats_out);
1787                             }
1788                             break;
1789                         default:
1790                             ret=-1;
1791                         }
1792
1793                         if(ret<=0)
1794                             break;
1795                         pkt.data= bit_buffer;
1796                         pkt.size= ret;
1797                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1798                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1799                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1800                     }
1801                 }
1802             }
1803         }
1804     }
1805
1806     return 0;
1807  fail_decode:
1808     return -1;
1809 }
1810
1811 static void print_sdp(AVFormatContext **avc, int n)
1812 {
1813     char sdp[2048];
1814
1815     av_sdp_create(avc, n, sdp, sizeof(sdp));
1816     printf("SDP:\n%s\n", sdp);
1817     fflush(stdout);
1818 }
1819
1820 static int copy_chapters(int infile, int outfile)
1821 {
1822     AVFormatContext *is = input_files[infile];
1823     AVFormatContext *os = output_files[outfile];
1824     int i;
1825
1826     for (i = 0; i < is->nb_chapters; i++) {
1827         AVChapter *in_ch = is->chapters[i], *out_ch;
1828         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1829                                       AV_TIME_BASE_Q, in_ch->time_base);
1830         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1831                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1832
1833
1834         if (in_ch->end < ts_off)
1835             continue;
1836         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1837             break;
1838
1839         out_ch = av_mallocz(sizeof(AVChapter));
1840         if (!out_ch)
1841             return AVERROR(ENOMEM);
1842
1843         out_ch->id        = in_ch->id;
1844         out_ch->time_base = in_ch->time_base;
1845         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1846         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1847
1848         if (metadata_chapters_autocopy)
1849             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1850
1851         os->nb_chapters++;
1852         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1853         if (!os->chapters)
1854             return AVERROR(ENOMEM);
1855         os->chapters[os->nb_chapters - 1] = out_ch;
1856     }
1857     return 0;
1858 }
1859
1860 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1861                                     AVCodecContext *avctx)
1862 {
1863     char *p;
1864     int n = 1, i;
1865     int64_t t;
1866
1867     for (p = kf; *p; p++)
1868         if (*p == ',')
1869             n++;
1870     ost->forced_kf_count = n;
1871     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1872     if (!ost->forced_kf_pts) {
1873         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1874         ffmpeg_exit(1);
1875     }
1876     for (i = 0; i < n; i++) {
1877         p = i ? strchr(p, ',') + 1 : kf;
1878         t = parse_time_or_die("force_key_frames", p, 1);
1879         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1880     }
1881 }
1882
1883 /*
1884  * The following code is the main loop of the file converter
1885  */
1886 static int transcode(AVFormatContext **output_files,
1887                      int nb_output_files,
1888                      AVFormatContext **input_files,
1889                      int nb_input_files,
1890                      AVStreamMap *stream_maps, int nb_stream_maps)
1891 {
1892     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1893     AVFormatContext *is, *os;
1894     AVCodecContext *codec, *icodec;
1895     AVOutputStream *ost, **ost_table = NULL;
1896     AVInputStream *ist, **ist_table = NULL;
1897     AVInputFile *file_table;
1898     char error[1024];
1899     int key;
1900     int want_sdp = 1;
1901     uint8_t no_packet[MAX_FILES]={0};
1902     int no_packet_count=0;
1903
1904     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1905     if (!file_table)
1906         goto fail;
1907
1908     /* input stream init */
1909     j = 0;
1910     for(i=0;i<nb_input_files;i++) {
1911         is = input_files[i];
1912         file_table[i].ist_index = j;
1913         file_table[i].nb_streams = is->nb_streams;
1914         j += is->nb_streams;
1915     }
1916     nb_istreams = j;
1917
1918     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1919     if (!ist_table)
1920         goto fail;
1921
1922     for(i=0;i<nb_istreams;i++) {
1923         ist = av_mallocz(sizeof(AVInputStream));
1924         if (!ist)
1925             goto fail;
1926         ist_table[i] = ist;
1927     }
1928     j = 0;
1929     for(i=0;i<nb_input_files;i++) {
1930         is = input_files[i];
1931         for(k=0;k<is->nb_streams;k++) {
1932             ist = ist_table[j++];
1933             ist->st = is->streams[k];
1934             ist->file_index = i;
1935             ist->index = k;
1936             ist->discard = 1; /* the stream is discarded by default
1937                                  (changed later) */
1938
1939             if (rate_emu) {
1940                 ist->start = av_gettime();
1941             }
1942         }
1943     }
1944
1945     /* output stream init */
1946     nb_ostreams = 0;
1947     for(i=0;i<nb_output_files;i++) {
1948         os = output_files[i];
1949         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1950             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1951             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1952             ret = AVERROR(EINVAL);
1953             goto fail;
1954         }
1955         nb_ostreams += os->nb_streams;
1956     }
1957     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1958         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1959         ret = AVERROR(EINVAL);
1960         goto fail;
1961     }
1962
1963     /* Sanity check the mapping args -- do the input files & streams exist? */
1964     for(i=0;i<nb_stream_maps;i++) {
1965         int fi = stream_maps[i].file_index;
1966         int si = stream_maps[i].stream_index;
1967
1968         if (fi < 0 || fi > nb_input_files - 1 ||
1969             si < 0 || si > file_table[fi].nb_streams - 1) {
1970             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1971             ret = AVERROR(EINVAL);
1972             goto fail;
1973         }
1974         fi = stream_maps[i].sync_file_index;
1975         si = stream_maps[i].sync_stream_index;
1976         if (fi < 0 || fi > nb_input_files - 1 ||
1977             si < 0 || si > file_table[fi].nb_streams - 1) {
1978             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1979             ret = AVERROR(EINVAL);
1980             goto fail;
1981         }
1982     }
1983
1984     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1985     if (!ost_table)
1986         goto fail;
1987     n = 0;
1988     for(k=0;k<nb_output_files;k++) {
1989         os = output_files[k];
1990         for(i=0;i<os->nb_streams;i++,n++) {
1991             int found;
1992             ost = ost_table[n] = output_streams_for_file[k][i];
1993             ost->st = os->streams[i];
1994             if (nb_stream_maps > 0) {
1995                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1996                     stream_maps[n].stream_index;
1997
1998                 /* Sanity check that the stream types match */
1999                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2000                     int i= ost->file_index;
2001                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2002                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2003                         stream_maps[n].file_index, stream_maps[n].stream_index,
2004                         ost->file_index, ost->index);
2005                     ffmpeg_exit(1);
2006                 }
2007
2008             } else {
2009                 int best_nb_frames=-1;
2010                 /* get corresponding input stream index : we select the first one with the right type */
2011                 found = 0;
2012                 for(j=0;j<nb_istreams;j++) {
2013                     int skip=0;
2014                     ist = ist_table[j];
2015                     if(opt_programid){
2016                         int pi,si;
2017                         AVFormatContext *f= input_files[ ist->file_index ];
2018                         skip=1;
2019                         for(pi=0; pi<f->nb_programs; pi++){
2020                             AVProgram *p= f->programs[pi];
2021                             if(p->id == opt_programid)
2022                                 for(si=0; si<p->nb_stream_indexes; si++){
2023                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2024                                         skip=0;
2025                                 }
2026                         }
2027                     }
2028                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2029                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2030                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2031                             best_nb_frames= ist->st->codec_info_nb_frames;
2032                             ost->source_index = j;
2033                             found = 1;
2034                         }
2035                     }
2036                 }
2037
2038                 if (!found) {
2039                     if(! opt_programid) {
2040                         /* try again and reuse existing stream */
2041                         for(j=0;j<nb_istreams;j++) {
2042                             ist = ist_table[j];
2043                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2044                                 && ist->st->discard != AVDISCARD_ALL) {
2045                                 ost->source_index = j;
2046                                 found = 1;
2047                             }
2048                         }
2049                     }
2050                     if (!found) {
2051                         int i= ost->file_index;
2052                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2053                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2054                                 ost->file_index, ost->index);
2055                         ffmpeg_exit(1);
2056                     }
2057                 }
2058             }
2059             ist = ist_table[ost->source_index];
2060             ist->discard = 0;
2061             ost->sync_ist = (nb_stream_maps > 0) ?
2062                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2063                          stream_maps[n].sync_stream_index] : ist;
2064         }
2065     }
2066
2067     /* for each output stream, we compute the right encoding parameters */
2068     for(i=0;i<nb_ostreams;i++) {
2069         ost = ost_table[i];
2070         os = output_files[ost->file_index];
2071         ist = ist_table[ost->source_index];
2072
2073         codec = ost->st->codec;
2074         icodec = ist->st->codec;
2075
2076         if (metadata_streams_autocopy)
2077             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2078                              AV_METADATA_DONT_OVERWRITE);
2079
2080         ost->st->disposition = ist->st->disposition;
2081         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2082         codec->chroma_sample_location = icodec->chroma_sample_location;
2083
2084         if (ost->st->stream_copy) {
2085             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2086
2087             if (extra_size > INT_MAX)
2088                 goto fail;
2089
2090             /* if stream_copy is selected, no need to decode or encode */
2091             codec->codec_id = icodec->codec_id;
2092             codec->codec_type = icodec->codec_type;
2093
2094             if(!codec->codec_tag){
2095                 if(   !os->oformat->codec_tag
2096                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2097                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2098                     codec->codec_tag = icodec->codec_tag;
2099             }
2100
2101             codec->bit_rate = icodec->bit_rate;
2102             codec->rc_max_rate    = icodec->rc_max_rate;
2103             codec->rc_buffer_size = icodec->rc_buffer_size;
2104             codec->extradata= av_mallocz(extra_size);
2105             if (!codec->extradata)
2106                 goto fail;
2107             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2108             codec->extradata_size= icodec->extradata_size;
2109             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){
2110                 codec->time_base = icodec->time_base;
2111                 codec->time_base.num *= icodec->ticks_per_frame;
2112                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2113                           codec->time_base.num, codec->time_base.den, INT_MAX);
2114             }else
2115                 codec->time_base = ist->st->time_base;
2116             switch(codec->codec_type) {
2117             case AVMEDIA_TYPE_AUDIO:
2118                 if(audio_volume != 256) {
2119                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2120                     ffmpeg_exit(1);
2121                 }
2122                 codec->channel_layout = icodec->channel_layout;
2123                 codec->sample_rate = icodec->sample_rate;
2124                 codec->channels = icodec->channels;
2125                 codec->frame_size = icodec->frame_size;
2126                 codec->audio_service_type = icodec->audio_service_type;
2127                 codec->block_align= icodec->block_align;
2128                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2129                     codec->block_align= 0;
2130                 if(codec->codec_id == CODEC_ID_AC3)
2131                     codec->block_align= 0;
2132                 break;
2133             case AVMEDIA_TYPE_VIDEO:
2134                 codec->pix_fmt = icodec->pix_fmt;
2135                 codec->width = icodec->width;
2136                 codec->height = icodec->height;
2137                 codec->has_b_frames = icodec->has_b_frames;
2138                 break;
2139             case AVMEDIA_TYPE_SUBTITLE:
2140                 codec->width = icodec->width;
2141                 codec->height = icodec->height;
2142                 break;
2143             case AVMEDIA_TYPE_DATA:
2144                 break;
2145             default:
2146                 abort();
2147             }
2148         } else {
2149             switch(codec->codec_type) {
2150             case AVMEDIA_TYPE_AUDIO:
2151                 ost->fifo= av_fifo_alloc(1024);
2152                 if(!ost->fifo)
2153                     goto fail;
2154                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2155                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2156                 icodec->request_channels = codec->channels;
2157                 ist->decoding_needed = 1;
2158                 ost->encoding_needed = 1;
2159                 ost->resample_sample_fmt  = icodec->sample_fmt;
2160                 ost->resample_sample_rate = icodec->sample_rate;
2161                 ost->resample_channels    = icodec->channels;
2162                 break;
2163             case AVMEDIA_TYPE_VIDEO:
2164                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2165                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2166                     ffmpeg_exit(1);
2167                 }
2168                 ost->video_resample = (codec->width != icodec->width   ||
2169                                        codec->height != icodec->height ||
2170                         (codec->pix_fmt != icodec->pix_fmt));
2171                 if (ost->video_resample) {
2172 #if !CONFIG_AVFILTER
2173                     avcodec_get_frame_defaults(&ost->pict_tmp);
2174                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2175                                          codec->width, codec->height)) {
2176                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2177                         ffmpeg_exit(1);
2178                     }
2179                     ost->img_resample_ctx = sws_getContext(
2180                         icodec->width,
2181                         icodec->height,
2182                             icodec->pix_fmt,
2183                             codec->width,
2184                             codec->height,
2185                             codec->pix_fmt,
2186                             ost->sws_flags, NULL, NULL, NULL);
2187                     if (ost->img_resample_ctx == NULL) {
2188                         fprintf(stderr, "Cannot get resampling context\n");
2189                         ffmpeg_exit(1);
2190                     }
2191
2192                     ost->original_height = icodec->height;
2193                     ost->original_width  = icodec->width;
2194 #endif
2195                     codec->bits_per_raw_sample= 0;
2196                 }
2197                 ost->resample_height = icodec->height;
2198                 ost->resample_width  = icodec->width;
2199                 ost->resample_pix_fmt= icodec->pix_fmt;
2200                 ost->encoding_needed = 1;
2201                 ist->decoding_needed = 1;
2202
2203 #if CONFIG_AVFILTER
2204                 if (configure_video_filters(ist, ost)) {
2205                     fprintf(stderr, "Error opening filters!\n");
2206                     exit(1);
2207                 }
2208 #endif
2209                 break;
2210             case AVMEDIA_TYPE_SUBTITLE:
2211                 ost->encoding_needed = 1;
2212                 ist->decoding_needed = 1;
2213                 break;
2214             default:
2215                 abort();
2216                 break;
2217             }
2218             /* two pass mode */
2219             if (ost->encoding_needed &&
2220                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2221                 char logfilename[1024];
2222                 FILE *f;
2223
2224                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2225                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2226                          i);
2227                 if (codec->flags & CODEC_FLAG_PASS1) {
2228                     f = fopen(logfilename, "wb");
2229                     if (!f) {
2230                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2231                         ffmpeg_exit(1);
2232                     }
2233                     ost->logfile = f;
2234                 } else {
2235                     char  *logbuffer;
2236                     size_t logbuffer_size;
2237                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2238                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2239                         ffmpeg_exit(1);
2240                     }
2241                     codec->stats_in = logbuffer;
2242                 }
2243             }
2244         }
2245         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2246             int size= codec->width * codec->height;
2247             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2248         }
2249     }
2250
2251     if (!bit_buffer)
2252         bit_buffer = av_malloc(bit_buffer_size);
2253     if (!bit_buffer) {
2254         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2255                 bit_buffer_size);
2256         ret = AVERROR(ENOMEM);
2257         goto fail;
2258     }
2259
2260     /* open each encoder */
2261     for(i=0;i<nb_ostreams;i++) {
2262         ost = ost_table[i];
2263         if (ost->encoding_needed) {
2264             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2265             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2266             if (!codec)
2267                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2268             if (!codec) {
2269                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2270                          ost->st->codec->codec_id, ost->file_index, ost->index);
2271                 ret = AVERROR(EINVAL);
2272                 goto dump_format;
2273             }
2274             if (dec->subtitle_header) {
2275                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2276                 if (!ost->st->codec->subtitle_header) {
2277                     ret = AVERROR(ENOMEM);
2278                     goto dump_format;
2279                 }
2280                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2281                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2282             }
2283             if (avcodec_open(ost->st->codec, codec) < 0) {
2284                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2285                         ost->file_index, ost->index);
2286                 ret = AVERROR(EINVAL);
2287                 goto dump_format;
2288             }
2289             extra_size += ost->st->codec->extradata_size;
2290         }
2291     }
2292
2293     /* open each decoder */
2294     for(i=0;i<nb_istreams;i++) {
2295         ist = ist_table[i];
2296         if (ist->decoding_needed) {
2297             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2298             if (!codec)
2299                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2300             if (!codec) {
2301                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2302                         ist->st->codec->codec_id, ist->file_index, ist->index);
2303                 ret = AVERROR(EINVAL);
2304                 goto dump_format;
2305             }
2306             if (avcodec_open(ist->st->codec, codec) < 0) {
2307                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2308                         ist->file_index, ist->index);
2309                 ret = AVERROR(EINVAL);
2310                 goto dump_format;
2311             }
2312             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2313             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2314         }
2315     }
2316
2317     /* init pts */
2318     for(i=0;i<nb_istreams;i++) {
2319         AVStream *st;
2320         ist = ist_table[i];
2321         st= ist->st;
2322         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2323         ist->next_pts = AV_NOPTS_VALUE;
2324         init_pts_correction(&ist->pts_ctx);
2325         ist->is_start = 1;
2326     }
2327
2328     /* set meta data information from input file if required */
2329     for (i=0;i<nb_meta_data_maps;i++) {
2330         AVFormatContext *files[2];
2331         AVMetadata      **meta[2];
2332         int j;
2333
2334 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2335         if ((index) < 0 || (index) >= (nb_elems)) {\
2336             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2337                      (desc), (index));\
2338             ret = AVERROR(EINVAL);\
2339             goto dump_format;\
2340         }
2341
2342         int out_file_index = meta_data_maps[i][0].file;
2343         int in_file_index = meta_data_maps[i][1].file;
2344         if (in_file_index < 0 || out_file_index < 0)
2345             continue;
2346         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2347         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2348
2349         files[0] = output_files[out_file_index];
2350         files[1] = input_files[in_file_index];
2351
2352         for (j = 0; j < 2; j++) {
2353             AVMetaDataMap *map = &meta_data_maps[i][j];
2354
2355             switch (map->type) {
2356             case 'g':
2357                 meta[j] = &files[j]->metadata;
2358                 break;
2359             case 's':
2360                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2361                 meta[j] = &files[j]->streams[map->index]->metadata;
2362                 break;
2363             case 'c':
2364                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2365                 meta[j] = &files[j]->chapters[map->index]->metadata;
2366                 break;
2367             case 'p':
2368                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2369                 meta[j] = &files[j]->programs[map->index]->metadata;
2370                 break;
2371             }
2372         }
2373
2374         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2375     }
2376
2377     /* copy global metadata by default */
2378     if (metadata_global_autocopy) {
2379
2380         for (i = 0; i < nb_output_files; i++)
2381             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2382                              AV_METADATA_DONT_OVERWRITE);
2383     }
2384
2385     /* copy chapters according to chapter maps */
2386     for (i = 0; i < nb_chapter_maps; i++) {
2387         int infile  = chapter_maps[i].in_file;
2388         int outfile = chapter_maps[i].out_file;
2389
2390         if (infile < 0 || outfile < 0)
2391             continue;
2392         if (infile >= nb_input_files) {
2393             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2394             ret = AVERROR(EINVAL);
2395             goto dump_format;
2396         }
2397         if (outfile >= nb_output_files) {
2398             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2399             ret = AVERROR(EINVAL);
2400             goto dump_format;
2401         }
2402         copy_chapters(infile, outfile);
2403     }
2404
2405     /* copy chapters from the first input file that has them*/
2406     if (!nb_chapter_maps)
2407         for (i = 0; i < nb_input_files; i++) {
2408             if (!input_files[i]->nb_chapters)
2409                 continue;
2410
2411             for (j = 0; j < nb_output_files; j++)
2412                 if ((ret = copy_chapters(i, j)) < 0)
2413                     goto dump_format;
2414             break;
2415         }
2416
2417     /* open files and write file headers */
2418     for(i=0;i<nb_output_files;i++) {
2419         os = output_files[i];
2420         if (av_write_header(os) < 0) {
2421             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2422             ret = AVERROR(EINVAL);
2423             goto dump_format;
2424         }
2425         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2426             want_sdp = 0;
2427         }
2428     }
2429
2430  dump_format:
2431     /* dump the file output parameters - cannot be done before in case
2432        of stream copy */
2433     for(i=0;i<nb_output_files;i++) {
2434         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2435     }
2436
2437     /* dump the stream mapping */
2438     if (verbose >= 0) {
2439         fprintf(stderr, "Stream mapping:\n");
2440         for(i=0;i<nb_ostreams;i++) {
2441             ost = ost_table[i];
2442             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2443                     ist_table[ost->source_index]->file_index,
2444                     ist_table[ost->source_index]->index,
2445                     ost->file_index,
2446                     ost->index);
2447             if (ost->sync_ist != ist_table[ost->source_index])
2448                 fprintf(stderr, " [sync #%d.%d]",
2449                         ost->sync_ist->file_index,
2450                         ost->sync_ist->index);
2451             fprintf(stderr, "\n");
2452         }
2453     }
2454
2455     if (ret) {
2456         fprintf(stderr, "%s\n", error);
2457         goto fail;
2458     }
2459
2460     if (want_sdp) {
2461         print_sdp(output_files, nb_output_files);
2462     }
2463
2464     if (!using_stdin && verbose >= 0) {
2465 #if HAVE_KBHIT
2466         fprintf(stderr, "Press [q] to stop encoding\n");
2467 #else
2468         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2469 #endif
2470         avio_set_interrupt_cb(decode_interrupt_cb);
2471     }
2472     term_init();
2473
2474     timer_start = av_gettime();
2475
2476     for(; received_sigterm == 0;) {
2477         int file_index, ist_index;
2478         AVPacket pkt;
2479         double ipts_min;
2480         double opts_min;
2481
2482     redo:
2483         ipts_min= 1e100;
2484         opts_min= 1e100;
2485         /* if 'q' pressed, exits */
2486         if (!using_stdin) {
2487             if (q_pressed)
2488                 break;
2489             /* read_key() returns 0 on EOF */
2490             key = read_key();
2491             if (key == 'q')
2492                 break;
2493         }
2494
2495         /* select the stream that we must read now by looking at the
2496            smallest output pts */
2497         file_index = -1;
2498         for(i=0;i<nb_ostreams;i++) {
2499             double ipts, opts;
2500             ost = ost_table[i];
2501             os = output_files[ost->file_index];
2502             ist = ist_table[ost->source_index];
2503             if(ist->is_past_recording_time || no_packet[ist->file_index])
2504                 continue;
2505                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2506             ipts = (double)ist->pts;
2507             if (!file_table[ist->file_index].eof_reached){
2508                 if(ipts < ipts_min) {
2509                     ipts_min = ipts;
2510                     if(input_sync ) file_index = ist->file_index;
2511                 }
2512                 if(opts < opts_min) {
2513                     opts_min = opts;
2514                     if(!input_sync) file_index = ist->file_index;
2515                 }
2516             }
2517             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2518                 file_index= -1;
2519                 break;
2520             }
2521         }
2522         /* if none, if is finished */
2523         if (file_index < 0) {
2524             if(no_packet_count){
2525                 no_packet_count=0;
2526                 memset(no_packet, 0, sizeof(no_packet));
2527                 usleep(10000);
2528                 continue;
2529             }
2530             break;
2531         }
2532
2533         /* finish if limit size exhausted */
2534         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2535             break;
2536
2537         /* read a frame from it and output it in the fifo */
2538         is = input_files[file_index];
2539         ret= av_read_frame(is, &pkt);
2540         if(ret == AVERROR(EAGAIN)){
2541             no_packet[file_index]=1;
2542             no_packet_count++;
2543             continue;
2544         }
2545         if (ret < 0) {
2546             file_table[file_index].eof_reached = 1;
2547             if (opt_shortest)
2548                 break;
2549             else
2550                 continue;
2551         }
2552
2553         no_packet_count=0;
2554         memset(no_packet, 0, sizeof(no_packet));
2555
2556         if (do_pkt_dump) {
2557             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2558                              is->streams[pkt.stream_index]);
2559         }
2560         /* the following test is needed in case new streams appear
2561            dynamically in stream : we ignore them */
2562         if (pkt.stream_index >= file_table[file_index].nb_streams)
2563             goto discard_packet;
2564         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2565         ist = ist_table[ist_index];
2566         if (ist->discard)
2567             goto discard_packet;
2568
2569         if (pkt.dts != AV_NOPTS_VALUE)
2570             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2571         if (pkt.pts != AV_NOPTS_VALUE)
2572             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2573
2574         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2575             && input_files_ts_scale[file_index][pkt.stream_index]){
2576             if(pkt.pts != AV_NOPTS_VALUE)
2577                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2578             if(pkt.dts != AV_NOPTS_VALUE)
2579                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2580         }
2581
2582 //        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);
2583         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2584             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2585             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2586             int64_t delta= pkt_dts - ist->next_pts;
2587             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2588                 input_files_ts_offset[ist->file_index]-= delta;
2589                 if (verbose > 2)
2590                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2591                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2592                 if(pkt.pts != AV_NOPTS_VALUE)
2593                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2594             }
2595         }
2596
2597         /* finish if recording time exhausted */
2598         if (recording_time != INT64_MAX &&
2599             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2600             ist->is_past_recording_time = 1;
2601             goto discard_packet;
2602         }
2603
2604         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2605         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2606
2607             if (verbose >= 0)
2608                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2609                         ist->file_index, ist->index);
2610             if (exit_on_error)
2611                 ffmpeg_exit(1);
2612             av_free_packet(&pkt);
2613             goto redo;
2614         }
2615
2616     discard_packet:
2617         av_free_packet(&pkt);
2618
2619         /* dump report by using the output first video and audio streams */
2620         print_report(output_files, ost_table, nb_ostreams, 0);
2621     }
2622
2623     /* at the end of stream, we must flush the decoder buffers */
2624     for(i=0;i<nb_istreams;i++) {
2625         ist = ist_table[i];
2626         if (ist->decoding_needed) {
2627             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2628         }
2629     }
2630
2631     term_exit();
2632
2633     /* write the trailer if needed and close file */
2634     for(i=0;i<nb_output_files;i++) {
2635         os = output_files[i];
2636         av_write_trailer(os);
2637     }
2638
2639     /* dump report by using the first video and audio streams */
2640     print_report(output_files, ost_table, nb_ostreams, 1);
2641
2642     /* close each encoder */
2643     for(i=0;i<nb_ostreams;i++) {
2644         ost = ost_table[i];
2645         if (ost->encoding_needed) {
2646             av_freep(&ost->st->codec->stats_in);
2647             avcodec_close(ost->st->codec);
2648         }
2649     }
2650
2651     /* close each decoder */
2652     for(i=0;i<nb_istreams;i++) {
2653         ist = ist_table[i];
2654         if (ist->decoding_needed) {
2655             avcodec_close(ist->st->codec);
2656         }
2657     }
2658 #if CONFIG_AVFILTER
2659     avfilter_graph_free(&graph);
2660 #endif
2661
2662     /* finished ! */
2663     ret = 0;
2664
2665  fail:
2666     av_freep(&bit_buffer);
2667     av_free(file_table);
2668
2669     if (ist_table) {
2670         for(i=0;i<nb_istreams;i++) {
2671             ist = ist_table[i];
2672             av_free(ist);
2673         }
2674         av_free(ist_table);
2675     }
2676     if (ost_table) {
2677         for(i=0;i<nb_ostreams;i++) {
2678             ost = ost_table[i];
2679             if (ost) {
2680                 if (ost->st->stream_copy)
2681                     av_freep(&ost->st->codec->extradata);
2682                 if (ost->logfile) {
2683                     fclose(ost->logfile);
2684                     ost->logfile = NULL;
2685                 }
2686                 av_fifo_free(ost->fifo); /* works even if fifo is not
2687                                              initialized but set to zero */
2688                 av_freep(&ost->st->codec->subtitle_header);
2689                 av_free(ost->pict_tmp.data[0]);
2690                 av_free(ost->forced_kf_pts);
2691                 if (ost->video_resample)
2692                     sws_freeContext(ost->img_resample_ctx);
2693                 if (ost->resample)
2694                     audio_resample_close(ost->resample);
2695                 if (ost->reformat_ctx)
2696                     av_audio_convert_free(ost->reformat_ctx);
2697                 av_free(ost);
2698             }
2699         }
2700         av_free(ost_table);
2701     }
2702     return ret;
2703 }
2704
2705 static void opt_format(const char *arg)
2706 {
2707     last_asked_format = arg;
2708 }
2709
2710 static void opt_video_rc_override_string(const char *arg)
2711 {
2712     video_rc_override_string = arg;
2713 }
2714
2715 static int opt_me_threshold(const char *opt, const char *arg)
2716 {
2717     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2718     return 0;
2719 }
2720
2721 static int opt_verbose(const char *opt, const char *arg)
2722 {
2723     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2724     return 0;
2725 }
2726
2727 static int opt_frame_rate(const char *opt, const char *arg)
2728 {
2729     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2730         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2731         ffmpeg_exit(1);
2732     }
2733     return 0;
2734 }
2735
2736 static int opt_bitrate(const char *opt, const char *arg)
2737 {
2738     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2739
2740     opt_default(opt, arg);
2741
2742     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2743         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2744
2745     return 0;
2746 }
2747
2748 static int opt_frame_crop(const char *opt, const char *arg)
2749 {
2750     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2751     return AVERROR(EINVAL);
2752 }
2753
2754 static void opt_frame_size(const char *arg)
2755 {
2756     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2757         fprintf(stderr, "Incorrect frame size\n");
2758         ffmpeg_exit(1);
2759     }
2760 }
2761
2762 static int opt_pad(const char *opt, const char *arg) {
2763     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2764     return -1;
2765 }
2766
2767 static void opt_frame_pix_fmt(const char *arg)
2768 {
2769     if (strcmp(arg, "list")) {
2770         frame_pix_fmt = av_get_pix_fmt(arg);
2771         if (frame_pix_fmt == PIX_FMT_NONE) {
2772             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2773             ffmpeg_exit(1);
2774         }
2775     } else {
2776         show_pix_fmts();
2777         ffmpeg_exit(0);
2778     }
2779 }
2780
2781 static void opt_frame_aspect_ratio(const char *arg)
2782 {
2783     int x = 0, y = 0;
2784     double ar = 0;
2785     const char *p;
2786     char *end;
2787
2788     p = strchr(arg, ':');
2789     if (p) {
2790         x = strtol(arg, &end, 10);
2791         if (end == p)
2792             y = strtol(end+1, &end, 10);
2793         if (x > 0 && y > 0)
2794             ar = (double)x / (double)y;
2795     } else
2796         ar = strtod(arg, NULL);
2797
2798     if (!ar) {
2799         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2800         ffmpeg_exit(1);
2801     }
2802     frame_aspect_ratio = ar;
2803
2804 #if CONFIG_AVFILTER
2805     x = vfilters ? strlen(vfilters) : 0;
2806     vfilters = av_realloc(vfilters, x+100);
2807     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2808 #endif
2809 }
2810
2811 static int opt_metadata(const char *opt, const char *arg)
2812 {
2813     char *mid= strchr(arg, '=');
2814
2815     if(!mid){
2816         fprintf(stderr, "Missing =\n");
2817         ffmpeg_exit(1);
2818     }
2819     *mid++= 0;
2820
2821     av_metadata_set2(&metadata, arg, mid, 0);
2822
2823     return 0;
2824 }
2825
2826 static void opt_qscale(const char *arg)
2827 {
2828     video_qscale = atof(arg);
2829     if (video_qscale <= 0 ||
2830         video_qscale > 255) {
2831         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2832         ffmpeg_exit(1);
2833     }
2834 }
2835
2836 static void opt_top_field_first(const char *arg)
2837 {
2838     top_field_first= atoi(arg);
2839 }
2840
2841 static int opt_thread_count(const char *opt, const char *arg)
2842 {
2843     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2844 #if !HAVE_THREADS
2845     if (verbose >= 0)
2846         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2847 #endif
2848     return 0;
2849 }
2850
2851 static void opt_audio_sample_fmt(const char *arg)
2852 {
2853     if (strcmp(arg, "list")) {
2854         audio_sample_fmt = av_get_sample_fmt(arg);
2855         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2856             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2857             ffmpeg_exit(1);
2858         }
2859     } else {
2860         int i;
2861         char fmt_str[128];
2862         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2863             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2864         ffmpeg_exit(0);
2865     }
2866 }
2867
2868 static int opt_audio_rate(const char *opt, const char *arg)
2869 {
2870     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2871     return 0;
2872 }
2873
2874 static int opt_audio_channels(const char *opt, const char *arg)
2875 {
2876     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2877     return 0;
2878 }
2879
2880 static void opt_video_channel(const char *arg)
2881 {
2882     video_channel = strtol(arg, NULL, 0);
2883 }
2884
2885 static void opt_video_standard(const char *arg)
2886 {
2887     video_standard = av_strdup(arg);
2888 }
2889
2890 static void opt_codec(int *pstream_copy, char **pcodec_name,
2891                       int codec_type, const char *arg)
2892 {
2893     av_freep(pcodec_name);
2894     if (!strcmp(arg, "copy")) {
2895         *pstream_copy = 1;
2896     } else {
2897         *pcodec_name = av_strdup(arg);
2898     }
2899 }
2900
2901 static void opt_audio_codec(const char *arg)
2902 {
2903     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2904 }
2905
2906 static void opt_video_codec(const char *arg)
2907 {
2908     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2909 }
2910
2911 static void opt_subtitle_codec(const char *arg)
2912 {
2913     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2914 }
2915
2916 static void opt_data_codec(const char *arg)
2917 {
2918     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2919 }
2920
2921 static int opt_codec_tag(const char *opt, const char *arg)
2922 {
2923     char *tail;
2924     uint32_t *codec_tag;
2925
2926     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2927                 !strcmp(opt, "vtag") ? &video_codec_tag :
2928                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2929     if (!codec_tag)
2930         return -1;
2931
2932     *codec_tag = strtol(arg, &tail, 0);
2933     if (!tail || *tail)
2934         *codec_tag = AV_RL32(arg);
2935
2936     return 0;
2937 }
2938
2939 static void opt_map(const char *arg)
2940 {
2941     AVStreamMap *m;
2942     char *p;
2943
2944     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2945     m = &stream_maps[nb_stream_maps-1];
2946
2947     m->file_index = strtol(arg, &p, 0);
2948     if (*p)
2949         p++;
2950
2951     m->stream_index = strtol(p, &p, 0);
2952     if (*p) {
2953         p++;
2954         m->sync_file_index = strtol(p, &p, 0);
2955         if (*p)
2956             p++;
2957         m->sync_stream_index = strtol(p, &p, 0);
2958     } else {
2959         m->sync_file_index = m->file_index;
2960         m->sync_stream_index = m->stream_index;
2961     }
2962 }
2963
2964 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2965 {
2966     *endptr = arg;
2967     if (*arg == ',') {
2968         *type = *(++arg);
2969         switch (*arg) {
2970         case 'g':
2971             break;
2972         case 's':
2973         case 'c':
2974         case 'p':
2975             *index = strtol(++arg, endptr, 0);
2976             break;
2977         default:
2978             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2979             ffmpeg_exit(1);
2980         }
2981     } else
2982         *type = 'g';
2983 }
2984
2985 static void opt_map_metadata(const char *arg)
2986 {
2987     AVMetaDataMap *m, *m1;
2988     char *p;
2989
2990     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2991                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2992
2993     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2994     m->file = strtol(arg, &p, 0);
2995     parse_meta_type(p, &m->type, &m->index, &p);
2996     if (*p)
2997         p++;
2998
2999     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3000     m1->file = strtol(p, &p, 0);
3001     parse_meta_type(p, &m1->type, &m1->index, &p);
3002
3003     if (m->type == 'g' || m1->type == 'g')
3004         metadata_global_autocopy = 0;
3005     if (m->type == 's' || m1->type == 's')
3006         metadata_streams_autocopy = 0;
3007     if (m->type == 'c' || m1->type == 'c')
3008         metadata_chapters_autocopy = 0;
3009 }
3010
3011 static void opt_map_meta_data(const char *arg)
3012 {
3013     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3014                     "Use -map_metadata instead.\n");
3015     opt_map_metadata(arg);
3016 }
3017
3018 static void opt_map_chapters(const char *arg)
3019 {
3020     AVChapterMap *c;
3021     char *p;
3022
3023     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3024                               nb_chapter_maps + 1);
3025     c = &chapter_maps[nb_chapter_maps - 1];
3026     c->out_file = strtol(arg, &p, 0);
3027     if (*p)
3028         p++;
3029
3030     c->in_file = strtol(p, &p, 0);
3031 }
3032
3033 static void opt_input_ts_scale(const char *arg)
3034 {
3035     unsigned int stream;
3036     double scale;
3037     char *p;
3038
3039     stream = strtol(arg, &p, 0);
3040     if (*p)
3041         p++;
3042     scale= strtod(p, &p);
3043
3044     if(stream >= MAX_STREAMS)
3045         ffmpeg_exit(1);
3046
3047     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);
3048     input_files_ts_scale[nb_input_files][stream]= scale;
3049 }
3050
3051 static int opt_recording_time(const char *opt, const char *arg)
3052 {
3053     recording_time = parse_time_or_die(opt, arg, 1);
3054     return 0;
3055 }
3056
3057 static int opt_start_time(const char *opt, const char *arg)
3058 {
3059     start_time = parse_time_or_die(opt, arg, 1);
3060     return 0;
3061 }
3062
3063 static int opt_recording_timestamp(const char *opt, const char *arg)
3064 {
3065     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3066     return 0;
3067 }
3068
3069 static int opt_input_ts_offset(const char *opt, const char *arg)
3070 {
3071     input_ts_offset = parse_time_or_die(opt, arg, 1);
3072     return 0;
3073 }
3074
3075 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3076 {
3077     const char *codec_string = encoder ? "encoder" : "decoder";
3078     AVCodec *codec;
3079
3080     if(!name)
3081         return CODEC_ID_NONE;
3082     codec = encoder ?
3083         avcodec_find_encoder_by_name(name) :
3084         avcodec_find_decoder_by_name(name);
3085     if(!codec) {
3086         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3087         ffmpeg_exit(1);
3088     }
3089     if(codec->type != type) {
3090         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3091         ffmpeg_exit(1);
3092     }
3093     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3094        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3095         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3096                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3097                 codec_string, codec->name);
3098         codec = encoder ?
3099             avcodec_find_encoder(codec->id) :
3100             avcodec_find_decoder(codec->id);
3101         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3102             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3103                     codec_string, codec->name);
3104         ffmpeg_exit(1);
3105     }
3106     return codec->id;
3107 }
3108
3109 static void opt_input_file(const char *filename)
3110 {
3111     AVFormatContext *ic;
3112     AVFormatParameters params, *ap = &params;
3113     AVInputFormat *file_iformat = NULL;
3114     int err, i, ret, rfps, rfps_base;
3115     int64_t timestamp;
3116
3117     if (last_asked_format) {
3118         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3119             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3120             ffmpeg_exit(1);
3121         }
3122         last_asked_format = NULL;
3123     }
3124
3125     if (!strcmp(filename, "-"))
3126         filename = "pipe:";
3127
3128     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3129                     !strcmp(filename, "/dev/stdin");
3130
3131     /* get default parameters from command line */
3132     ic = avformat_alloc_context();
3133     if (!ic) {
3134         print_error(filename, AVERROR(ENOMEM));
3135         ffmpeg_exit(1);
3136     }
3137
3138     memset(ap, 0, sizeof(*ap));
3139     ap->prealloced_context = 1;
3140     ap->sample_rate = audio_sample_rate;
3141     ap->channels = audio_channels;
3142     ap->time_base.den = frame_rate.num;
3143     ap->time_base.num = frame_rate.den;
3144     ap->width = frame_width;
3145     ap->height = frame_height;
3146     ap->pix_fmt = frame_pix_fmt;
3147    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3148     ap->channel = video_channel;
3149     ap->standard = video_standard;
3150
3151     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3152
3153     ic->video_codec_id   =
3154         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3155                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3156     ic->audio_codec_id   =
3157         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3158                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3159     ic->subtitle_codec_id=
3160         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3161                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3162     ic->flags |= AVFMT_FLAG_NONBLOCK;
3163
3164     /* open the input file with generic libav function */
3165     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3166     if (err < 0) {
3167         print_error(filename, err);
3168         ffmpeg_exit(1);
3169     }
3170     if(opt_programid) {
3171         int i, j;
3172         int found=0;
3173         for(i=0; i<ic->nb_streams; i++){
3174             ic->streams[i]->discard= AVDISCARD_ALL;
3175         }
3176         for(i=0; i<ic->nb_programs; i++){
3177             AVProgram *p= ic->programs[i];
3178             if(p->id != opt_programid){
3179                 p->discard = AVDISCARD_ALL;
3180             }else{
3181                 found=1;
3182                 for(j=0; j<p->nb_stream_indexes; j++){
3183                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3184                 }
3185             }
3186         }
3187         if(!found){
3188             fprintf(stderr, "Specified program id not found\n");
3189             ffmpeg_exit(1);
3190         }
3191         opt_programid=0;
3192     }
3193
3194     ic->loop_input = loop_input;
3195
3196     /* If not enough info to get the stream parameters, we decode the
3197        first frames to get it. (used in mpeg case for example) */
3198     ret = av_find_stream_info(ic);
3199     if (ret < 0 && verbose >= 0) {
3200         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3201         av_close_input_file(ic);
3202         ffmpeg_exit(1);
3203     }
3204
3205     timestamp = start_time;
3206     /* add the stream start time */
3207     if (ic->start_time != AV_NOPTS_VALUE)
3208         timestamp += ic->start_time;
3209
3210     /* if seeking requested, we execute it */
3211     if (start_time != 0) {
3212         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3213         if (ret < 0) {
3214             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3215                     filename, (double)timestamp / AV_TIME_BASE);
3216         }
3217         /* reset seek info */
3218         start_time = 0;
3219     }
3220
3221     /* update the current parameters so that they match the one of the input stream */
3222     for(i=0;i<ic->nb_streams;i++) {
3223         AVStream *st = ic->streams[i];
3224         AVCodecContext *dec = st->codec;
3225         dec->thread_count = thread_count;
3226         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3227         switch (dec->codec_type) {
3228         case AVMEDIA_TYPE_AUDIO:
3229             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3230             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]);
3231             channel_layout    = dec->channel_layout;
3232             audio_channels    = dec->channels;
3233             audio_sample_rate = dec->sample_rate;
3234             audio_sample_fmt  = dec->sample_fmt;
3235             if(audio_disable)
3236                 st->discard= AVDISCARD_ALL;
3237             /* Note that av_find_stream_info can add more streams, and we
3238              * currently have no chance of setting up lowres decoding
3239              * early enough for them. */
3240             if (dec->lowres)
3241                 audio_sample_rate >>= dec->lowres;
3242             break;
3243         case AVMEDIA_TYPE_VIDEO:
3244             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3245             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]);
3246             frame_height = dec->height;
3247             frame_width  = dec->width;
3248             if(ic->streams[i]->sample_aspect_ratio.num)
3249                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3250             else
3251                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3252             frame_aspect_ratio *= (float) dec->width / dec->height;
3253             frame_pix_fmt = dec->pix_fmt;
3254             rfps      = ic->streams[i]->r_frame_rate.num;
3255             rfps_base = ic->streams[i]->r_frame_rate.den;
3256             if (dec->lowres) {
3257                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3258                 frame_height >>= dec->lowres;
3259                 frame_width  >>= dec->lowres;
3260                 dec->height = frame_height;
3261                 dec->width  = frame_width;
3262             }
3263             if(me_threshold)
3264                 dec->debug |= FF_DEBUG_MV;
3265
3266             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3267
3268                 if (verbose >= 0)
3269                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3270                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3271
3272                     (float)rfps / rfps_base, rfps, rfps_base);
3273             }
3274             /* update the current frame rate to match the stream frame rate */
3275             frame_rate.num = rfps;
3276             frame_rate.den = rfps_base;
3277
3278             if(video_disable)
3279                 st->discard= AVDISCARD_ALL;
3280             else if(video_discard)
3281                 st->discard= video_discard;
3282             break;
3283         case AVMEDIA_TYPE_DATA:
3284             break;
3285         case AVMEDIA_TYPE_SUBTITLE:
3286             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3287             if(subtitle_disable)
3288                 st->discard = AVDISCARD_ALL;
3289             break;
3290         case AVMEDIA_TYPE_ATTACHMENT:
3291         case AVMEDIA_TYPE_UNKNOWN:
3292             break;
3293         default:
3294             abort();
3295         }
3296     }
3297
3298     input_files[nb_input_files] = ic;
3299     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3300     /* dump the file content */
3301     if (verbose >= 0)
3302         av_dump_format(ic, nb_input_files, filename, 0);
3303
3304     nb_input_files++;
3305
3306     video_channel = 0;
3307
3308     av_freep(&video_codec_name);
3309     av_freep(&audio_codec_name);
3310     av_freep(&subtitle_codec_name);
3311     uninit_opts();
3312     init_opts();
3313 }
3314
3315 static void check_inputs(int *has_video_ptr,
3316                          int *has_audio_ptr,
3317                          int *has_subtitle_ptr,
3318                          int *has_data_ptr)
3319 {
3320     int has_video, has_audio, has_subtitle, has_data, i, j;
3321     AVFormatContext *ic;
3322
3323     has_video = 0;
3324     has_audio = 0;
3325     has_subtitle = 0;
3326     has_data = 0;
3327
3328     for(j=0;j<nb_input_files;j++) {
3329         ic = input_files[j];
3330         for(i=0;i<ic->nb_streams;i++) {
3331             AVCodecContext *enc = ic->streams[i]->codec;
3332             switch(enc->codec_type) {
3333             case AVMEDIA_TYPE_AUDIO:
3334                 has_audio = 1;
3335                 break;
3336             case AVMEDIA_TYPE_VIDEO:
3337                 has_video = 1;
3338                 break;
3339             case AVMEDIA_TYPE_SUBTITLE:
3340                 has_subtitle = 1;
3341                 break;
3342             case AVMEDIA_TYPE_DATA:
3343             case AVMEDIA_TYPE_ATTACHMENT:
3344             case AVMEDIA_TYPE_UNKNOWN:
3345                 has_data = 1;
3346                 break;
3347             default:
3348                 abort();
3349             }
3350         }
3351     }
3352     *has_video_ptr = has_video;
3353     *has_audio_ptr = has_audio;
3354     *has_subtitle_ptr = has_subtitle;
3355     *has_data_ptr = has_data;
3356 }
3357
3358 static void new_video_stream(AVFormatContext *oc, int file_idx)
3359 {
3360     AVStream *st;
3361     AVOutputStream *ost;
3362     AVCodecContext *video_enc;
3363     enum CodecID codec_id = CODEC_ID_NONE;
3364     AVCodec *codec= NULL;
3365
3366     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3367     if (!st) {
3368         fprintf(stderr, "Could not alloc stream\n");
3369         ffmpeg_exit(1);
3370     }
3371     ost = new_output_stream(oc, file_idx);
3372
3373     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3374     if(!video_stream_copy){
3375         if (video_codec_name) {
3376             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3377                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3378             codec = avcodec_find_encoder_by_name(video_codec_name);
3379             output_codecs[nb_output_codecs-1] = codec;
3380         } else {
3381             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3382             codec = avcodec_find_encoder(codec_id);
3383         }
3384     }
3385
3386     avcodec_get_context_defaults3(st->codec, codec);
3387     ost->bitstream_filters = video_bitstream_filters;
3388     video_bitstream_filters= NULL;
3389
3390     st->codec->thread_count= thread_count;
3391
3392     video_enc = st->codec;
3393
3394     if(video_codec_tag)
3395         video_enc->codec_tag= video_codec_tag;
3396
3397     if(   (video_global_header&1)
3398        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3399         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3400         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3401     }
3402     if(video_global_header&2){
3403         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3404         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3405     }
3406
3407     if (video_stream_copy) {
3408         st->stream_copy = 1;
3409         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3410         video_enc->sample_aspect_ratio =
3411         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3412     } else {
3413         const char *p;
3414         int i;
3415         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3416
3417         video_enc->codec_id = codec_id;
3418         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3419
3420         if (codec && codec->supported_framerates && !force_fps)
3421             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3422         video_enc->time_base.den = fps.num;
3423         video_enc->time_base.num = fps.den;
3424
3425         video_enc->width = frame_width;
3426         video_enc->height = frame_height;
3427         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3428         video_enc->pix_fmt = frame_pix_fmt;
3429         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3430
3431         choose_pixel_fmt(st, codec);
3432
3433         if (intra_only)
3434             video_enc->gop_size = 0;
3435         if (video_qscale || same_quality) {
3436             video_enc->flags |= CODEC_FLAG_QSCALE;
3437             video_enc->global_quality=
3438                 st->quality = FF_QP2LAMBDA * video_qscale;
3439         }
3440
3441         if(intra_matrix)
3442             video_enc->intra_matrix = intra_matrix;
3443         if(inter_matrix)
3444             video_enc->inter_matrix = inter_matrix;
3445
3446         p= video_rc_override_string;
3447         for(i=0; p; i++){
3448             int start, end, q;
3449             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3450             if(e!=3){
3451                 fprintf(stderr, "error parsing rc_override\n");
3452                 ffmpeg_exit(1);
3453             }
3454             video_enc->rc_override=
3455                 av_realloc(video_enc->rc_override,
3456                            sizeof(RcOverride)*(i+1));
3457             video_enc->rc_override[i].start_frame= start;
3458             video_enc->rc_override[i].end_frame  = end;
3459             if(q>0){
3460                 video_enc->rc_override[i].qscale= q;
3461                 video_enc->rc_override[i].quality_factor= 1.0;
3462             }
3463             else{
3464                 video_enc->rc_override[i].qscale= 0;
3465                 video_enc->rc_override[i].quality_factor= -q/100.0;
3466             }
3467             p= strchr(p, '/');
3468             if(p) p++;
3469         }
3470         video_enc->rc_override_count=i;
3471         if (!video_enc->rc_initial_buffer_occupancy)
3472             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3473         video_enc->me_threshold= me_threshold;
3474         video_enc->intra_dc_precision= intra_dc_precision - 8;
3475
3476         if (do_psnr)
3477             video_enc->flags|= CODEC_FLAG_PSNR;
3478
3479         /* two pass mode */
3480         if (do_pass) {
3481             if (do_pass == 1) {
3482                 video_enc->flags |= CODEC_FLAG_PASS1;
3483             } else {
3484                 video_enc->flags |= CODEC_FLAG_PASS2;
3485             }
3486         }
3487
3488         if (forced_key_frames)
3489             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3490     }
3491     if (video_language) {
3492         av_metadata_set2(&st->metadata, "language", video_language, 0);
3493         av_freep(&video_language);
3494     }
3495
3496     /* reset some key parameters */
3497     video_disable = 0;
3498     av_freep(&video_codec_name);
3499     av_freep(&forced_key_frames);
3500     video_stream_copy = 0;
3501     frame_pix_fmt = PIX_FMT_NONE;
3502 }
3503
3504 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3505 {
3506     AVStream *st;
3507     AVOutputStream *ost;
3508     AVCodec *codec= NULL;
3509     AVCodecContext *audio_enc;
3510     enum CodecID codec_id = CODEC_ID_NONE;
3511
3512     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3513     if (!st) {
3514         fprintf(stderr, "Could not alloc stream\n");
3515         ffmpeg_exit(1);
3516     }
3517     ost = new_output_stream(oc, file_idx);
3518
3519     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3520     if(!audio_stream_copy){
3521         if (audio_codec_name) {
3522             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3523                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3524             codec = avcodec_find_encoder_by_name(audio_codec_name);
3525             output_codecs[nb_output_codecs-1] = codec;
3526         } else {
3527             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3528             codec = avcodec_find_encoder(codec_id);
3529         }
3530     }
3531
3532     avcodec_get_context_defaults3(st->codec, codec);
3533
3534     ost->bitstream_filters = audio_bitstream_filters;
3535     audio_bitstream_filters= NULL;
3536
3537     st->codec->thread_count= thread_count;
3538
3539     audio_enc = st->codec;
3540     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3541
3542     if(audio_codec_tag)
3543         audio_enc->codec_tag= audio_codec_tag;
3544
3545     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3546         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3547         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3548     }
3549     if (audio_stream_copy) {
3550         st->stream_copy = 1;
3551         audio_enc->channels = audio_channels;
3552         audio_enc->sample_rate = audio_sample_rate;
3553     } else {
3554         audio_enc->codec_id = codec_id;
3555         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3556
3557         if (audio_qscale > QSCALE_NONE) {
3558             audio_enc->flags |= CODEC_FLAG_QSCALE;
3559             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3560         }
3561         audio_enc->channels = audio_channels;
3562         audio_enc->sample_fmt = audio_sample_fmt;
3563         audio_enc->sample_rate = audio_sample_rate;
3564         audio_enc->channel_layout = channel_layout;
3565         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3566             audio_enc->channel_layout = 0;
3567         choose_sample_fmt(st, codec);
3568         choose_sample_rate(st, codec);
3569     }
3570     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3571     if (audio_language) {
3572         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3573         av_freep(&audio_language);
3574     }
3575
3576     /* reset some key parameters */
3577     audio_disable = 0;
3578     av_freep(&audio_codec_name);
3579     audio_stream_copy = 0;
3580 }
3581
3582 static void new_data_stream(AVFormatContext *oc, int file_idx)
3583 {
3584     AVStream *st;
3585     AVOutputStream *ost;
3586     AVCodec *codec=NULL;
3587     AVCodecContext *data_enc;
3588
3589     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3590     if (!st) {
3591         fprintf(stderr, "Could not alloc stream\n");
3592         ffmpeg_exit(1);
3593     }
3594     ost = new_output_stream(oc, file_idx);
3595     data_enc = st->codec;
3596     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3597     if (!data_stream_copy) {
3598         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3599         ffmpeg_exit(1);
3600     }
3601     avcodec_get_context_defaults3(st->codec, codec);
3602
3603     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3604
3605     if (data_codec_tag)
3606         data_enc->codec_tag= data_codec_tag;
3607
3608     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3609         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3610         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3611     }
3612     if (data_stream_copy) {
3613         st->stream_copy = 1;
3614     }
3615
3616     data_disable = 0;
3617     av_freep(&data_codec_name);
3618     data_stream_copy = 0;
3619 }
3620
3621 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3622 {
3623     AVStream *st;
3624     AVOutputStream *ost;
3625     AVCodec *codec=NULL;
3626     AVCodecContext *subtitle_enc;
3627     enum CodecID codec_id = CODEC_ID_NONE;
3628
3629     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3630     if (!st) {
3631         fprintf(stderr, "Could not alloc stream\n");
3632         ffmpeg_exit(1);
3633     }
3634     ost = new_output_stream(oc, file_idx);
3635     subtitle_enc = st->codec;
3636     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3637     if(!subtitle_stream_copy){
3638         if (subtitle_codec_name) {
3639             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3640                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3641             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3642         } else {
3643             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3644             codec = avcodec_find_encoder(codec_id);
3645         }
3646     }
3647     avcodec_get_context_defaults3(st->codec, codec);
3648
3649     ost->bitstream_filters = subtitle_bitstream_filters;
3650     subtitle_bitstream_filters= NULL;
3651
3652     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3653
3654     if(subtitle_codec_tag)
3655         subtitle_enc->codec_tag= subtitle_codec_tag;
3656
3657     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3658         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3659         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3660     }
3661     if (subtitle_stream_copy) {
3662         st->stream_copy = 1;
3663     } else {
3664         subtitle_enc->codec_id = codec_id;
3665         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3666     }
3667
3668     if (subtitle_language) {
3669         av_metadata_set2(&st->metadata, &