crop: make the filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
[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 float mux_preload= 0.5;
190 static float mux_max_delay= 0.7;
191
192 static int64_t recording_time = INT64_MAX;
193 static int64_t start_time = 0;
194 static int64_t recording_timestamp = 0;
195 static int64_t input_ts_offset = 0;
196 static int file_overwrite = 0;
197 static AVMetadata *metadata;
198 static int do_benchmark = 0;
199 static int do_hex_dump = 0;
200 static int do_pkt_dump = 0;
201 static int do_psnr = 0;
202 static int do_pass = 0;
203 static char *pass_logfilename_prefix = NULL;
204 static int audio_stream_copy = 0;
205 static int video_stream_copy = 0;
206 static int subtitle_stream_copy = 0;
207 static int video_sync_method= -1;
208 static int audio_sync_method= 0;
209 static float audio_drift_threshold= 0.1;
210 static int copy_ts= 0;
211 static int copy_tb;
212 static int opt_shortest = 0;
213 static int video_global_header = 0;
214 static char *vstats_filename;
215 static FILE *vstats_file;
216 static int opt_programid = 0;
217 static int copy_initial_nonkeyframes = 0;
218
219 static int rate_emu = 0;
220
221 static int  video_channel = 0;
222 static char *video_standard;
223
224 static int audio_volume = 256;
225
226 static int exit_on_error = 0;
227 static int using_stdin = 0;
228 static int verbose = 1;
229 static int thread_count= 1;
230 static int q_pressed = 0;
231 static int64_t video_size = 0;
232 static int64_t audio_size = 0;
233 static int64_t extra_size = 0;
234 static int nb_frames_dup = 0;
235 static int nb_frames_drop = 0;
236 static int input_sync;
237 static uint64_t limit_filesize = 0;
238 static int force_fps = 0;
239 static char *forced_key_frames = NULL;
240
241 static float dts_delta_threshold = 10;
242
243 static unsigned int sws_flags = SWS_BICUBIC;
244
245 static int64_t timer_start;
246
247 static uint8_t *audio_buf;
248 static uint8_t *audio_out;
249 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
250
251 static short *samples;
252
253 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
254 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
255 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
256
257 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
258
259 struct AVInputStream;
260
261 typedef struct AVOutputStream {
262     int file_index;          /* file index */
263     int index;               /* stream index in the output file */
264     int source_index;        /* AVInputStream index */
265     AVStream *st;            /* stream in the output file */
266     int encoding_needed;     /* true if encoding needed for this stream */
267     int frame_number;
268     /* input pts and corresponding output pts
269        for A/V sync */
270     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
271     struct AVInputStream *sync_ist; /* input stream to sync against */
272     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
273     AVBitStreamFilterContext *bitstream_filters;
274     /* video only */
275     int video_resample;
276     AVFrame pict_tmp;      /* temporary image for resampling */
277     struct SwsContext *img_resample_ctx; /* for image resampling */
278     int resample_height;
279     int resample_width;
280     int resample_pix_fmt;
281
282     /* full frame size of first frame */
283     int original_height;
284     int original_width;
285
286     /* forced key frames */
287     int64_t *forced_kf_pts;
288     int forced_kf_count;
289     int forced_kf_index;
290
291     /* audio only */
292     int audio_resample;
293     ReSampleContext *resample; /* for audio resampling */
294     int resample_sample_fmt;
295     int resample_channels;
296     int resample_sample_rate;
297     int reformat_pair;
298     AVAudioConvert *reformat_ctx;
299     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
300     FILE *logfile;
301 } AVOutputStream;
302
303 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
304 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
305
306 typedef struct AVInputStream {
307     int file_index;
308     int index;
309     AVStream *st;
310     int discard;             /* true if stream data should be discarded */
311     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
312     int64_t sample_index;      /* current sample */
313
314     int64_t       start;     /* time when read started */
315     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
316                                 is not defined */
317     int64_t       pts;       /* current pts */
318     PtsCorrectionContext pts_ctx;
319     int is_start;            /* is 1 at the start and after a discontinuity */
320     int showed_multi_packet_warning;
321     int is_past_recording_time;
322 #if CONFIG_AVFILTER
323     AVFilterContext *output_video_filter;
324     AVFilterContext *input_video_filter;
325     AVFrame *filter_frame;
326     int has_filter_frame;
327     AVFilterBufferRef *picref;
328 #endif
329 } AVInputStream;
330
331 typedef struct AVInputFile {
332     int eof_reached;      /* true if eof reached */
333     int ist_index;        /* index of first stream in ist_table */
334     int buffer_size;      /* current total buffer size */
335     int nb_streams;       /* nb streams we are aware of */
336 } AVInputFile;
337
338 #if CONFIG_AVFILTER
339
340 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
341 {
342     AVFilterContext *last_filter, *filter;
343     /** filter graph containing all filters including input & output */
344     AVCodecContext *codec = ost->st->codec;
345     AVCodecContext *icodec = ist->st->codec;
346     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
347     AVRational sample_aspect_ratio;
348     char args[255];
349     int ret;
350
351     graph = avfilter_graph_alloc();
352
353     if (ist->st->sample_aspect_ratio.num){
354         sample_aspect_ratio = ist->st->sample_aspect_ratio;
355     }else
356         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
357
358     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
359              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
360              sample_aspect_ratio.num, sample_aspect_ratio.den);
361
362     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
363                                        "src", args, NULL, graph);
364     if (ret < 0)
365         return ret;
366     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
367                                        "out", NULL, &ffsink_ctx, graph);
368     if (ret < 0)
369         return ret;
370     last_filter = ist->input_video_filter;
371
372     if (codec->width  != icodec->width || codec->height != icodec->height) {
373         snprintf(args, 255, "%d:%d:flags=0x%X",
374                  codec->width,
375                  codec->height,
376                  (int)av_get_int(sws_opts, "sws_flags", NULL));
377         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
378                                                 NULL, args, NULL, graph)) < 0)
379             return ret;
380         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
381             return ret;
382         last_filter = filter;
383     }
384
385     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
386     graph->scale_sws_opts = av_strdup(args);
387
388     if (vfilters) {
389         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
390         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
391
392         outputs->name    = av_strdup("in");
393         outputs->filter_ctx = last_filter;
394         outputs->pad_idx = 0;
395         outputs->next    = NULL;
396
397         inputs->name    = av_strdup("out");
398         inputs->filter_ctx = ist->output_video_filter;
399         inputs->pad_idx = 0;
400         inputs->next    = NULL;
401
402         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
403             return ret;
404         av_freep(&vfilters);
405     } else {
406         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
407             return ret;
408     }
409
410     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
411         return ret;
412
413     codec->width  = ist->output_video_filter->inputs[0]->w;
414     codec->height = ist->output_video_filter->inputs[0]->h;
415     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
416         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
417
418     return 0;
419 }
420 #endif /* CONFIG_AVFILTER */
421
422 static void term_exit(void)
423 {
424     av_log(NULL, AV_LOG_QUIET, "");
425 }
426
427 static volatile int received_sigterm = 0;
428
429 static void
430 sigterm_handler(int sig)
431 {
432     received_sigterm = sig;
433     term_exit();
434 }
435
436 static void term_init(void)
437 {
438     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
439     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
440 #ifdef SIGXCPU
441     signal(SIGXCPU, sigterm_handler);
442 #endif
443 }
444
445 /* read a key without blocking */
446 static int read_key(void)
447 {
448 #if HAVE_KBHIT
449     if(kbhit())
450         return(getch());
451 #endif
452     return -1;
453 }
454
455 static int decode_interrupt_cb(void)
456 {
457     return q_pressed || (q_pressed = read_key() == 'q');
458 }
459
460 static int ffmpeg_exit(int ret)
461 {
462     int i;
463
464     /* close files */
465     for(i=0;i<nb_output_files;i++) {
466         AVFormatContext *s = output_files[i];
467         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
468             avio_close(s->pb);
469         avformat_free_context(s);
470         av_free(output_streams_for_file[i]);
471     }
472     for(i=0;i<nb_input_files;i++) {
473         av_close_input_file(input_files[i]);
474         av_free(input_files_ts_scale[i]);
475     }
476
477     av_free(intra_matrix);
478     av_free(inter_matrix);
479
480     if (vstats_file)
481         fclose(vstats_file);
482     av_free(vstats_filename);
483
484     av_free(streamid_map);
485     av_free(input_codecs);
486     av_free(output_codecs);
487     av_free(stream_maps);
488     av_free(meta_data_maps);
489
490     av_free(video_codec_name);
491     av_free(audio_codec_name);
492     av_free(subtitle_codec_name);
493
494     av_free(video_standard);
495
496     uninit_opts();
497     av_free(audio_buf);
498     av_free(audio_out);
499     allocated_audio_buf_size= allocated_audio_out_size= 0;
500     av_free(samples);
501
502 #if CONFIG_AVFILTER
503     avfilter_uninit();
504 #endif
505
506     if (received_sigterm) {
507         fprintf(stderr,
508             "Received signal %d: terminating.\n",
509             (int) received_sigterm);
510         exit (255);
511     }
512
513     exit(ret); /* not all OS-es handle main() return value */
514     return ret;
515 }
516
517 /* similar to ff_dynarray_add() and av_fast_realloc() */
518 static void *grow_array(void *array, int elem_size, int *size, int new_size)
519 {
520     if (new_size >= INT_MAX / elem_size) {
521         fprintf(stderr, "Array too big.\n");
522         ffmpeg_exit(1);
523     }
524     if (*size < new_size) {
525         uint8_t *tmp = av_realloc(array, new_size*elem_size);
526         if (!tmp) {
527             fprintf(stderr, "Could not alloc buffer.\n");
528             ffmpeg_exit(1);
529         }
530         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
531         *size = new_size;
532         return tmp;
533     }
534     return array;
535 }
536
537 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
538 {
539     if(codec && codec->sample_fmts){
540         const enum AVSampleFormat *p= codec->sample_fmts;
541         for(; *p!=-1; p++){
542             if(*p == st->codec->sample_fmt)
543                 break;
544         }
545         if (*p == -1) {
546             av_log(NULL, AV_LOG_WARNING,
547                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
548                    av_get_sample_fmt_name(st->codec->sample_fmt),
549                    codec->name,
550                    av_get_sample_fmt_name(codec->sample_fmts[0]));
551             st->codec->sample_fmt = codec->sample_fmts[0];
552         }
553     }
554 }
555
556 static void choose_sample_rate(AVStream *st, AVCodec *codec)
557 {
558     if(codec && codec->supported_samplerates){
559         const int *p= codec->supported_samplerates;
560         int best=0;
561         int best_dist=INT_MAX;
562         for(; *p; p++){
563             int dist= abs(st->codec->sample_rate - *p);
564             if(dist < best_dist){
565                 best_dist= dist;
566                 best= *p;
567             }
568         }
569         if(best_dist){
570             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
571         }
572         st->codec->sample_rate= best;
573     }
574 }
575
576 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
577 {
578     if(codec && codec->pix_fmts){
579         const enum PixelFormat *p= codec->pix_fmts;
580         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
581             if(st->codec->codec_id==CODEC_ID_MJPEG){
582                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
583             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
584                 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};
585             }
586         }
587         for(; *p!=-1; p++){
588             if(*p == st->codec->pix_fmt)
589                 break;
590         }
591         if(*p == -1)
592             st->codec->pix_fmt = codec->pix_fmts[0];
593     }
594 }
595
596 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
597 {
598     int idx = oc->nb_streams - 1;
599     AVOutputStream *ost;
600
601     output_streams_for_file[file_idx] =
602         grow_array(output_streams_for_file[file_idx],
603                    sizeof(*output_streams_for_file[file_idx]),
604                    &nb_output_streams_for_file[file_idx],
605                    oc->nb_streams);
606     ost = output_streams_for_file[file_idx][idx] =
607         av_mallocz(sizeof(AVOutputStream));
608     if (!ost) {
609         fprintf(stderr, "Could not alloc output stream\n");
610         ffmpeg_exit(1);
611     }
612     ost->file_index = file_idx;
613     ost->index = idx;
614     return ost;
615 }
616
617 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
618 {
619     int i, err;
620     AVFormatContext *ic;
621     int nopts = 0;
622
623     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
624     if (err < 0)
625         return err;
626     /* copy stream format */
627     s->nb_streams = 0;
628     for(i=0;i<ic->nb_streams;i++) {
629         AVStream *st;
630         AVCodec *codec;
631
632         s->nb_streams++;
633
634         // FIXME: a more elegant solution is needed
635         st = av_mallocz(sizeof(AVStream));
636         memcpy(st, ic->streams[i], sizeof(AVStream));
637         st->codec = avcodec_alloc_context();
638         if (!st->codec) {
639             print_error(filename, AVERROR(ENOMEM));
640             ffmpeg_exit(1);
641         }
642         avcodec_copy_context(st->codec, ic->streams[i]->codec);
643         s->streams[i] = st;
644
645         codec = avcodec_find_encoder(st->codec->codec_id);
646         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
647             if (audio_stream_copy) {
648                 st->stream_copy = 1;
649             } else
650                 choose_sample_fmt(st, codec);
651         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
652             if (video_stream_copy) {
653                 st->stream_copy = 1;
654             } else
655                 choose_pixel_fmt(st, codec);
656         }
657
658         if(st->codec->flags & CODEC_FLAG_BITEXACT)
659             nopts = 1;
660
661         new_output_stream(s, nb_output_files);
662     }
663
664     if (!nopts)
665         s->timestamp = av_gettime();
666
667     av_close_input_file(ic);
668     return 0;
669 }
670
671 static double
672 get_sync_ipts(const AVOutputStream *ost)
673 {
674     const AVInputStream *ist = ost->sync_ist;
675     return (double)(ist->pts - start_time)/AV_TIME_BASE;
676 }
677
678 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
679     int ret;
680
681     while(bsfc){
682         AVPacket new_pkt= *pkt;
683         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
684                                           &new_pkt.data, &new_pkt.size,
685                                           pkt->data, pkt->size,
686                                           pkt->flags & AV_PKT_FLAG_KEY);
687         if(a>0){
688             av_free_packet(pkt);
689             new_pkt.destruct= av_destruct_packet;
690         } else if(a<0){
691             fprintf(stderr, "%s failed for stream %d, codec %s",
692                     bsfc->filter->name, pkt->stream_index,
693                     avctx->codec ? avctx->codec->name : "copy");
694             print_error("", a);
695             if (exit_on_error)
696                 ffmpeg_exit(1);
697         }
698         *pkt= new_pkt;
699
700         bsfc= bsfc->next;
701     }
702
703     ret= av_interleaved_write_frame(s, pkt);
704     if(ret < 0){
705         print_error("av_interleaved_write_frame()", ret);
706         ffmpeg_exit(1);
707     }
708 }
709
710 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
711
712 static void do_audio_out(AVFormatContext *s,
713                          AVOutputStream *ost,
714                          AVInputStream *ist,
715                          unsigned char *buf, int size)
716 {
717     uint8_t *buftmp;
718     int64_t audio_out_size, audio_buf_size;
719     int64_t allocated_for_size= size;
720
721     int size_out, frame_bytes, ret, resample_changed;
722     AVCodecContext *enc= ost->st->codec;
723     AVCodecContext *dec= ist->st->codec;
724     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
725     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
726     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
727
728 need_realloc:
729     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
730     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
731     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
732     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
733     audio_buf_size*= osize*enc->channels;
734
735     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
736     if(coded_bps > 8*osize)
737         audio_out_size= audio_out_size * coded_bps / (8*osize);
738     audio_out_size += FF_MIN_BUFFER_SIZE;
739
740     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
741         fprintf(stderr, "Buffer sizes too large\n");
742         ffmpeg_exit(1);
743     }
744
745     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
746     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
747     if (!audio_buf || !audio_out){
748         fprintf(stderr, "Out of memory in do_audio_out\n");
749         ffmpeg_exit(1);
750     }
751
752     if (enc->channels != dec->channels)
753         ost->audio_resample = 1;
754
755     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
756                        ost->resample_channels    != dec->channels   ||
757                        ost->resample_sample_rate != dec->sample_rate;
758
759     if ((ost->audio_resample && !ost->resample) || resample_changed) {
760         if (resample_changed) {
761             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",
762                    ist->file_index, ist->index,
763                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
764                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
765             ost->resample_sample_fmt  = dec->sample_fmt;
766             ost->resample_channels    = dec->channels;
767             ost->resample_sample_rate = dec->sample_rate;
768             if (ost->resample)
769                 audio_resample_close(ost->resample);
770         }
771         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
772         if (audio_sync_method <= 1 &&
773             ost->resample_sample_fmt  == enc->sample_fmt &&
774             ost->resample_channels    == enc->channels   &&
775             ost->resample_sample_rate == enc->sample_rate) {
776             ost->resample = NULL;
777             ost->audio_resample = 0;
778         } else {
779             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
780                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
781             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
782                                                    enc->sample_rate, dec->sample_rate,
783                                                    enc->sample_fmt,  dec->sample_fmt,
784                                                    16, 10, 0, 0.8);
785             if (!ost->resample) {
786                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
787                         dec->channels, dec->sample_rate,
788                         enc->channels, enc->sample_rate);
789                 ffmpeg_exit(1);
790             }
791         }
792     }
793
794 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
795     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
796         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
797         if (ost->reformat_ctx)
798             av_audio_convert_free(ost->reformat_ctx);
799         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
800                                                    dec->sample_fmt, 1, NULL, 0);
801         if (!ost->reformat_ctx) {
802             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
803                 av_get_sample_fmt_name(dec->sample_fmt),
804                 av_get_sample_fmt_name(enc->sample_fmt));
805             ffmpeg_exit(1);
806         }
807         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
808     }
809
810     if(audio_sync_method){
811         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
812                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
813         double idelta= delta*dec->sample_rate / enc->sample_rate;
814         int byte_delta= ((int)idelta)*2*dec->channels;
815
816         //FIXME resample delay
817         if(fabs(delta) > 50){
818             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
819                 if(byte_delta < 0){
820                     byte_delta= FFMAX(byte_delta, -size);
821                     size += byte_delta;
822                     buf  -= byte_delta;
823                     if(verbose > 2)
824                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
825                     if(!size)
826                         return;
827                     ist->is_start=0;
828                 }else{
829                     static uint8_t *input_tmp= NULL;
830                     input_tmp= av_realloc(input_tmp, byte_delta + size);
831
832                     if(byte_delta > allocated_for_size - size){
833                         allocated_for_size= byte_delta + (int64_t)size;
834                         goto need_realloc;
835                     }
836                     ist->is_start=0;
837
838                     memset(input_tmp, 0, byte_delta);
839                     memcpy(input_tmp + byte_delta, buf, size);
840                     buf= input_tmp;
841                     size += byte_delta;
842                     if(verbose > 2)
843                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
844                 }
845             }else if(audio_sync_method>1){
846                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
847                 av_assert0(ost->audio_resample);
848                 if(verbose > 2)
849                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
850 //                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));
851                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
852             }
853         }
854     }else
855         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
856                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
857
858     if (ost->audio_resample) {
859         buftmp = audio_buf;
860         size_out = audio_resample(ost->resample,
861                                   (short *)buftmp, (short *)buf,
862                                   size / (dec->channels * isize));
863         size_out = size_out * enc->channels * osize;
864     } else {
865         buftmp = buf;
866         size_out = size;
867     }
868
869     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
870         const void *ibuf[6]= {buftmp};
871         void *obuf[6]= {audio_buf};
872         int istride[6]= {isize};
873         int ostride[6]= {osize};
874         int len= size_out/istride[0];
875         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
876             printf("av_audio_convert() failed\n");
877             if (exit_on_error)
878                 ffmpeg_exit(1);
879             return;
880         }
881         buftmp = audio_buf;
882         size_out = len*osize;
883     }
884
885     /* now encode as many frames as possible */
886     if (enc->frame_size > 1) {
887         /* output resampled raw samples */
888         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
889             fprintf(stderr, "av_fifo_realloc2() failed\n");
890             ffmpeg_exit(1);
891         }
892         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
893
894         frame_bytes = enc->frame_size * osize * enc->channels;
895
896         while (av_fifo_size(ost->fifo) >= frame_bytes) {
897             AVPacket pkt;
898             av_init_packet(&pkt);
899
900             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
901
902             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
903
904             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
905                                        (short *)audio_buf);
906             if (ret < 0) {
907                 fprintf(stderr, "Audio encoding failed\n");
908                 ffmpeg_exit(1);
909             }
910             audio_size += ret;
911             pkt.stream_index= ost->index;
912             pkt.data= audio_out;
913             pkt.size= ret;
914             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
915                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
916             pkt.flags |= AV_PKT_FLAG_KEY;
917             write_frame(s, &pkt, enc, ost->bitstream_filters);
918
919             ost->sync_opts += enc->frame_size;
920         }
921     } else {
922         AVPacket pkt;
923         av_init_packet(&pkt);
924
925         ost->sync_opts += size_out / (osize * enc->channels);
926
927         /* output a pcm frame */
928         /* determine the size of the coded buffer */
929         size_out /= osize;
930         if (coded_bps)
931             size_out = size_out*coded_bps/8;
932
933         if(size_out > audio_out_size){
934             fprintf(stderr, "Internal error, buffer size too small\n");
935             ffmpeg_exit(1);
936         }
937
938         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
939         ret = avcodec_encode_audio(enc, audio_out, size_out,
940                                    (short *)buftmp);
941         if (ret < 0) {
942             fprintf(stderr, "Audio encoding failed\n");
943             ffmpeg_exit(1);
944         }
945         audio_size += ret;
946         pkt.stream_index= ost->index;
947         pkt.data= audio_out;
948         pkt.size= ret;
949         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
950             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
951         pkt.flags |= AV_PKT_FLAG_KEY;
952         write_frame(s, &pkt, enc, ost->bitstream_filters);
953     }
954 }
955
956 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
957 {
958     AVCodecContext *dec;
959     AVPicture *picture2;
960     AVPicture picture_tmp;
961     uint8_t *buf = 0;
962
963     dec = ist->st->codec;
964
965     /* deinterlace : must be done before any resize */
966     if (do_deinterlace) {
967         int size;
968
969         /* create temporary picture */
970         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
971         buf = av_malloc(size);
972         if (!buf)
973             return;
974
975         picture2 = &picture_tmp;
976         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
977
978         if(avpicture_deinterlace(picture2, picture,
979                                  dec->pix_fmt, dec->width, dec->height) < 0) {
980             /* if error, do not deinterlace */
981             fprintf(stderr, "Deinterlacing failed\n");
982             av_free(buf);
983             buf = NULL;
984             picture2 = picture;
985         }
986     } else {
987         picture2 = picture;
988     }
989
990     if (picture != picture2)
991         *picture = *picture2;
992     *bufp = buf;
993 }
994
995 /* we begin to correct av delay at this threshold */
996 #define AV_DELAY_MAX 0.100
997
998 static void do_subtitle_out(AVFormatContext *s,
999                             AVOutputStream *ost,
1000                             AVInputStream *ist,
1001                             AVSubtitle *sub,
1002                             int64_t pts)
1003 {
1004     static uint8_t *subtitle_out = NULL;
1005     int subtitle_out_max_size = 1024 * 1024;
1006     int subtitle_out_size, nb, i;
1007     AVCodecContext *enc;
1008     AVPacket pkt;
1009
1010     if (pts == AV_NOPTS_VALUE) {
1011         fprintf(stderr, "Subtitle packets must have a pts\n");
1012         if (exit_on_error)
1013             ffmpeg_exit(1);
1014         return;
1015     }
1016
1017     enc = ost->st->codec;
1018
1019     if (!subtitle_out) {
1020         subtitle_out = av_malloc(subtitle_out_max_size);
1021     }
1022
1023     /* Note: DVB subtitle need one packet to draw them and one other
1024        packet to clear them */
1025     /* XXX: signal it in the codec context ? */
1026     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1027         nb = 2;
1028     else
1029         nb = 1;
1030
1031     for(i = 0; i < nb; i++) {
1032         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1033         // start_display_time is required to be 0
1034         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1035         sub->end_display_time -= sub->start_display_time;
1036         sub->start_display_time = 0;
1037         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1038                                                     subtitle_out_max_size, sub);
1039         if (subtitle_out_size < 0) {
1040             fprintf(stderr, "Subtitle encoding failed\n");
1041             ffmpeg_exit(1);
1042         }
1043
1044         av_init_packet(&pkt);
1045         pkt.stream_index = ost->index;
1046         pkt.data = subtitle_out;
1047         pkt.size = subtitle_out_size;
1048         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1049         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1050             /* XXX: the pts correction is handled here. Maybe handling
1051                it in the codec would be better */
1052             if (i == 0)
1053                 pkt.pts += 90 * sub->start_display_time;
1054             else
1055                 pkt.pts += 90 * sub->end_display_time;
1056         }
1057         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1058     }
1059 }
1060
1061 static int bit_buffer_size= 1024*256;
1062 static uint8_t *bit_buffer= NULL;
1063
1064 static void do_video_out(AVFormatContext *s,
1065                          AVOutputStream *ost,
1066                          AVInputStream *ist,
1067                          AVFrame *in_picture,
1068                          int *frame_size)
1069 {
1070     int nb_frames, i, ret;
1071     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1072     AVCodecContext *enc, *dec;
1073     double sync_ipts;
1074
1075     enc = ost->st->codec;
1076     dec = ist->st->codec;
1077
1078     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1079
1080     /* by default, we output a single frame */
1081     nb_frames = 1;
1082
1083     *frame_size = 0;
1084
1085     if(video_sync_method){
1086         double vdelta = sync_ipts - ost->sync_opts;
1087         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1088         if (vdelta < -1.1)
1089             nb_frames = 0;
1090         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1091             if(vdelta<=-0.6){
1092                 nb_frames=0;
1093             }else if(vdelta>0.6)
1094                 ost->sync_opts= lrintf(sync_ipts);
1095         }else if (vdelta > 1.1)
1096             nb_frames = lrintf(vdelta);
1097 //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);
1098         if (nb_frames == 0){
1099             ++nb_frames_drop;
1100             if (verbose>2)
1101                 fprintf(stderr, "*** drop!\n");
1102         }else if (nb_frames > 1) {
1103             nb_frames_dup += nb_frames - 1;
1104             if (verbose>2)
1105                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1106         }
1107     }else
1108         ost->sync_opts= lrintf(sync_ipts);
1109
1110     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1111     if (nb_frames <= 0)
1112         return;
1113
1114     formatted_picture = in_picture;
1115     final_picture = formatted_picture;
1116     padding_src = formatted_picture;
1117     resampling_dst = &ost->pict_tmp;
1118
1119     if (   ost->resample_height != ist->st->codec->height
1120         || ost->resample_width  != ist->st->codec->width
1121         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1122
1123         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));
1124         if(!ost->video_resample)
1125             ffmpeg_exit(1);
1126     }
1127
1128 #if !CONFIG_AVFILTER
1129     if (ost->video_resample) {
1130         padding_src = NULL;
1131         final_picture = &ost->pict_tmp;
1132         if(  ost->resample_height != ist->st->codec->height
1133           || ost->resample_width  != ist->st->codec->width
1134           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1135
1136             /* initialize a new scaler context */
1137             sws_freeContext(ost->img_resample_ctx);
1138             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1139             ost->img_resample_ctx = sws_getContext(
1140                 ist->st->codec->width,
1141                 ist->st->codec->height,
1142                 ist->st->codec->pix_fmt,
1143                 ost->st->codec->width,
1144                 ost->st->codec->height,
1145                 ost->st->codec->pix_fmt,
1146                 sws_flags, NULL, NULL, NULL);
1147             if (ost->img_resample_ctx == NULL) {
1148                 fprintf(stderr, "Cannot get resampling context\n");
1149                 ffmpeg_exit(1);
1150             }
1151         }
1152         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1153               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1154     }
1155 #endif
1156
1157     /* duplicates frame if needed */
1158     for(i=0;i<nb_frames;i++) {
1159         AVPacket pkt;
1160         av_init_packet(&pkt);
1161         pkt.stream_index= ost->index;
1162
1163         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1164             /* raw pictures are written as AVPicture structure to
1165                avoid any copies. We support temorarily the older
1166                method. */
1167             AVFrame* old_frame = enc->coded_frame;
1168             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1169             pkt.data= (uint8_t *)final_picture;
1170             pkt.size=  sizeof(AVPicture);
1171             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1172             pkt.flags |= AV_PKT_FLAG_KEY;
1173
1174             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1175             enc->coded_frame = old_frame;
1176         } else {
1177             AVFrame big_picture;
1178
1179             big_picture= *final_picture;
1180             /* better than nothing: use input picture interlaced
1181                settings */
1182             big_picture.interlaced_frame = in_picture->interlaced_frame;
1183             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1184                 if(top_field_first == -1)
1185                     big_picture.top_field_first = in_picture->top_field_first;
1186                 else
1187                     big_picture.top_field_first = top_field_first;
1188             }
1189
1190             /* handles sameq here. This is not correct because it may
1191                not be a global option */
1192             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1193             if(!me_threshold)
1194                 big_picture.pict_type = 0;
1195 //            big_picture.pts = AV_NOPTS_VALUE;
1196             big_picture.pts= ost->sync_opts;
1197 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1198 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1199             if (ost->forced_kf_index < ost->forced_kf_count &&
1200                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1201                 big_picture.pict_type = FF_I_TYPE;
1202                 ost->forced_kf_index++;
1203             }
1204             ret = avcodec_encode_video(enc,
1205                                        bit_buffer, bit_buffer_size,
1206                                        &big_picture);
1207             if (ret < 0) {
1208                 fprintf(stderr, "Video encoding failed\n");
1209                 ffmpeg_exit(1);
1210             }
1211
1212             if(ret>0){
1213                 pkt.data= bit_buffer;
1214                 pkt.size= ret;
1215                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1216                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1217 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1218    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1219    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1220
1221                 if(enc->coded_frame->key_frame)
1222                     pkt.flags |= AV_PKT_FLAG_KEY;
1223                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1224                 *frame_size = ret;
1225                 video_size += ret;
1226                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1227                 //        enc->frame_number-1, ret, enc->pict_type);
1228                 /* if two pass, output log */
1229                 if (ost->logfile && enc->stats_out) {
1230                     fprintf(ost->logfile, "%s", enc->stats_out);
1231                 }
1232             }
1233         }
1234         ost->sync_opts++;
1235         ost->frame_number++;
1236     }
1237 }
1238
1239 static double psnr(double d){
1240     return -10.0*log(d)/log(10.0);
1241 }
1242
1243 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1244                            int frame_size)
1245 {
1246     AVCodecContext *enc;
1247     int frame_number;
1248     double ti1, bitrate, avg_bitrate;
1249
1250     /* this is executed just the first time do_video_stats is called */
1251     if (!vstats_file) {
1252         vstats_file = fopen(vstats_filename, "w");
1253         if (!vstats_file) {
1254             perror("fopen");
1255             ffmpeg_exit(1);
1256         }
1257     }
1258
1259     enc = ost->st->codec;
1260     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1261         frame_number = ost->frame_number;
1262         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1263         if (enc->flags&CODEC_FLAG_PSNR)
1264             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1265
1266         fprintf(vstats_file,"f_size= %6d ", frame_size);
1267         /* compute pts value */
1268         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1269         if (ti1 < 0.01)
1270             ti1 = 0.01;
1271
1272         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1273         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1274         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1275             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1276         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1277     }
1278 }
1279
1280 static void print_report(AVFormatContext **output_files,
1281                          AVOutputStream **ost_table, int nb_ostreams,
1282                          int is_last_report)
1283 {
1284     char buf[1024];
1285     AVOutputStream *ost;
1286     AVFormatContext *oc;
1287     int64_t total_size;
1288     AVCodecContext *enc;
1289     int frame_number, vid, i;
1290     double bitrate, ti1, pts;
1291     static int64_t last_time = -1;
1292     static int qp_histogram[52];
1293
1294     if (!is_last_report) {
1295         int64_t cur_time;
1296         /* display the report every 0.5 seconds */
1297         cur_time = av_gettime();
1298         if (last_time == -1) {
1299             last_time = cur_time;
1300             return;
1301         }
1302         if ((cur_time - last_time) < 500000)
1303             return;
1304         last_time = cur_time;
1305     }
1306
1307
1308     oc = output_files[0];
1309
1310     total_size = avio_size(oc->pb);
1311     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1312         total_size= avio_tell(oc->pb);
1313
1314     buf[0] = '\0';
1315     ti1 = 1e10;
1316     vid = 0;
1317     for(i=0;i<nb_ostreams;i++) {
1318         ost = ost_table[i];
1319         enc = ost->st->codec;
1320         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1321             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1322                      !ost->st->stream_copy ?
1323                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1324         }
1325         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326             float t = (av_gettime()-timer_start) / 1000000.0;
1327
1328             frame_number = ost->frame_number;
1329             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1330                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1331                      !ost->st->stream_copy ?
1332                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1333             if(is_last_report)
1334                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1335             if(qp_hist){
1336                 int j;
1337                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1338                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1339                     qp_histogram[qp]++;
1340                 for(j=0; j<32; j++)
1341                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1342             }
1343             if (enc->flags&CODEC_FLAG_PSNR){
1344                 int j;
1345                 double error, error_sum=0;
1346                 double scale, scale_sum=0;
1347                 char type[3]= {'Y','U','V'};
1348                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1349                 for(j=0; j<3; j++){
1350                     if(is_last_report){
1351                         error= enc->error[j];
1352                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1353                     }else{
1354                         error= enc->coded_frame->error[j];
1355                         scale= enc->width*enc->height*255.0*255.0;
1356                     }
1357                     if(j) scale/=4;
1358                     error_sum += error;
1359                     scale_sum += scale;
1360                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1361                 }
1362                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1363             }
1364             vid = 1;
1365         }
1366         /* compute min output value */
1367         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1368         if ((pts < ti1) && (pts > 0))
1369             ti1 = pts;
1370     }
1371     if (ti1 < 0.01)
1372         ti1 = 0.01;
1373
1374     if (verbose || is_last_report) {
1375         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1376
1377         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1378             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1379             (double)total_size / 1024, ti1, bitrate);
1380
1381         if (nb_frames_dup || nb_frames_drop)
1382           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1383                   nb_frames_dup, nb_frames_drop);
1384
1385         if (verbose >= 0)
1386             fprintf(stderr, "%s    \r", buf);
1387
1388         fflush(stderr);
1389     }
1390
1391     if (is_last_report && verbose >= 0){
1392         int64_t raw= audio_size + video_size + extra_size;
1393         fprintf(stderr, "\n");
1394         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1395                 video_size/1024.0,
1396                 audio_size/1024.0,
1397                 extra_size/1024.0,
1398                 100.0*(total_size - raw)/raw
1399         );
1400     }
1401 }
1402
1403 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1404 {
1405     int fill_char = 0x00;
1406     if (sample_fmt == AV_SAMPLE_FMT_U8)
1407         fill_char = 0x80;
1408     memset(buf, fill_char, size);
1409 }
1410
1411 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1412 static int output_packet(AVInputStream *ist, int ist_index,
1413                          AVOutputStream **ost_table, int nb_ostreams,
1414                          const AVPacket *pkt)
1415 {
1416     AVFormatContext *os;
1417     AVOutputStream *ost;
1418     int ret, i;
1419     int got_picture;
1420     AVFrame picture;
1421     void *buffer_to_free;
1422     static unsigned int samples_size= 0;
1423     AVSubtitle subtitle, *subtitle_to_free;
1424     int64_t pkt_pts = AV_NOPTS_VALUE;
1425 #if CONFIG_AVFILTER
1426     int frame_available;
1427 #endif
1428
1429     AVPacket avpkt;
1430     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1431
1432     if(ist->next_pts == AV_NOPTS_VALUE)
1433         ist->next_pts= ist->pts;
1434
1435     if (pkt == NULL) {
1436         /* EOF handling */
1437         av_init_packet(&avpkt);
1438         avpkt.data = NULL;
1439         avpkt.size = 0;
1440         goto handle_eof;
1441     } else {
1442         avpkt = *pkt;
1443     }
1444
1445     if(pkt->dts != AV_NOPTS_VALUE)
1446         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1447     if(pkt->pts != AV_NOPTS_VALUE)
1448         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1449
1450     //while we have more to decode or while the decoder did output something on EOF
1451     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1452         uint8_t *data_buf, *decoded_data_buf;
1453         int data_size, decoded_data_size;
1454     handle_eof:
1455         ist->pts= ist->next_pts;
1456
1457         if(avpkt.size && avpkt.size != pkt->size &&
1458            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1459             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1460             ist->showed_multi_packet_warning=1;
1461         }
1462
1463         /* decode the packet if needed */
1464         decoded_data_buf = NULL; /* fail safe */
1465         decoded_data_size= 0;
1466         data_buf  = avpkt.data;
1467         data_size = avpkt.size;
1468         subtitle_to_free = NULL;
1469         if (ist->decoding_needed) {
1470             switch(ist->st->codec->codec_type) {
1471             case AVMEDIA_TYPE_AUDIO:{
1472                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1473                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1474                     av_free(samples);
1475                     samples= av_malloc(samples_size);
1476                 }
1477                 decoded_data_size= samples_size;
1478                     /* XXX: could avoid copy if PCM 16 bits with same
1479                        endianness as CPU */
1480                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1481                                             &avpkt);
1482                 if (ret < 0)
1483                     goto fail_decode;
1484                 avpkt.data += ret;
1485                 avpkt.size -= ret;
1486                 data_size   = ret;
1487                 /* Some bug in mpeg audio decoder gives */
1488                 /* decoded_data_size < 0, it seems they are overflows */
1489                 if (decoded_data_size <= 0) {
1490                     /* no audio frame */
1491                     continue;
1492                 }
1493                 decoded_data_buf = (uint8_t *)samples;
1494                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1495                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1496                 break;}
1497             case AVMEDIA_TYPE_VIDEO:
1498                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1499                     /* XXX: allocate picture correctly */
1500                     avcodec_get_frame_defaults(&picture);
1501                     avpkt.pts = pkt_pts;
1502                     avpkt.dts = ist->pts;
1503                     pkt_pts = AV_NOPTS_VALUE;
1504
1505                     ret = avcodec_decode_video2(ist->st->codec,
1506                                                 &picture, &got_picture, &avpkt);
1507                     ist->st->quality= picture.quality;
1508                     if (ret < 0)
1509                         goto fail_decode;
1510                     if (!got_picture) {
1511                         /* no picture yet */
1512                         goto discard_packet;
1513                     }
1514                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1515                     if (ist->st->codec->time_base.num != 0) {
1516                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1517                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1518                                           ist->st->codec->time_base.num * ticks) /
1519                             ist->st->codec->time_base.den;
1520                     }
1521                     avpkt.size = 0;
1522                     break;
1523             case AVMEDIA_TYPE_SUBTITLE:
1524                 ret = avcodec_decode_subtitle2(ist->st->codec,
1525                                                &subtitle, &got_picture, &avpkt);
1526                 if (ret < 0)
1527                     goto fail_decode;
1528                 if (!got_picture) {
1529                     goto discard_packet;
1530                 }
1531                 subtitle_to_free = &subtitle;
1532                 avpkt.size = 0;
1533                 break;
1534             default:
1535                 goto fail_decode;
1536             }
1537         } else {
1538             switch(ist->st->codec->codec_type) {
1539             case AVMEDIA_TYPE_AUDIO:
1540                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1541                     ist->st->codec->sample_rate;
1542                 break;
1543             case AVMEDIA_TYPE_VIDEO:
1544                 if (ist->st->codec->time_base.num != 0) {
1545                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1546                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1547                                       ist->st->codec->time_base.num * ticks) /
1548                         ist->st->codec->time_base.den;
1549                 }
1550                 break;
1551             }
1552             ret = avpkt.size;
1553             avpkt.size = 0;
1554         }
1555
1556         buffer_to_free = NULL;
1557         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1558             pre_process_video_frame(ist, (AVPicture *)&picture,
1559                                     &buffer_to_free);
1560         }
1561
1562 #if CONFIG_AVFILTER
1563         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1564             AVRational sar;
1565             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1566             else                                  sar = ist->st->codec->sample_aspect_ratio;
1567             // add it to be filtered
1568             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1569                                      ist->pts,
1570                                      sar);
1571         }
1572 #endif
1573
1574         // preprocess audio (volume)
1575         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1576             if (audio_volume != 256) {
1577                 short *volp;
1578                 volp = samples;
1579                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1580                     int v = ((*volp) * audio_volume + 128) >> 8;
1581                     if (v < -32768) v = -32768;
1582                     if (v >  32767) v = 32767;
1583                     *volp++ = v;
1584                 }
1585             }
1586         }
1587
1588         /* frame rate emulation */
1589         if (rate_emu) {
1590             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1591             int64_t now = av_gettime() - ist->start;
1592             if (pts > now)
1593                 usleep(pts - now);
1594         }
1595 #if CONFIG_AVFILTER
1596         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1597             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1598 #endif
1599         /* if output time reached then transcode raw format,
1600            encode packets and output them */
1601         if (start_time == 0 || ist->pts >= start_time)
1602 #if CONFIG_AVFILTER
1603         while (frame_available) {
1604             AVRational ist_pts_tb;
1605             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1606                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1607             if (ist->picref)
1608                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1609 #endif
1610             for(i=0;i<nb_ostreams;i++) {
1611                 int frame_size;
1612
1613                 ost = ost_table[i];
1614                 if (ost->source_index == ist_index) {
1615                     os = output_files[ost->file_index];
1616
1617                     /* set the input output pts pairs */
1618                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1619
1620                     if (ost->encoding_needed) {
1621                         av_assert0(ist->decoding_needed);
1622                         switch(ost->st->codec->codec_type) {
1623                         case AVMEDIA_TYPE_AUDIO:
1624                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1625                             break;
1626                         case AVMEDIA_TYPE_VIDEO:
1627 #if CONFIG_AVFILTER
1628                             if (ist->picref->video)
1629                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1630 #endif
1631                             do_video_out(os, ost, ist, &picture, &frame_size);
1632                             if (vstats_filename && frame_size)
1633                                 do_video_stats(os, ost, frame_size);
1634                             break;
1635                         case AVMEDIA_TYPE_SUBTITLE:
1636                             do_subtitle_out(os, ost, ist, &subtitle,
1637                                             pkt->pts);
1638                             break;
1639                         default:
1640                             abort();
1641                         }
1642                     } else {
1643                         AVFrame avframe; //FIXME/XXX remove this
1644                         AVPacket opkt;
1645                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1646
1647                         av_init_packet(&opkt);
1648
1649                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1650                             continue;
1651
1652                         /* no reencoding needed : output the packet directly */
1653                         /* force the input stream PTS */
1654
1655                         avcodec_get_frame_defaults(&avframe);
1656                         ost->st->codec->coded_frame= &avframe;
1657                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1658
1659                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1660                             audio_size += data_size;
1661                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1662                             video_size += data_size;
1663                             ost->sync_opts++;
1664                         }
1665
1666                         opkt.stream_index= ost->index;
1667                         if(pkt->pts != AV_NOPTS_VALUE)
1668                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1669                         else
1670                             opkt.pts= AV_NOPTS_VALUE;
1671
1672                         if (pkt->dts == AV_NOPTS_VALUE)
1673                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1674                         else
1675                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1676                         opkt.dts -= ost_tb_start_time;
1677
1678                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1679                         opkt.flags= pkt->flags;
1680
1681                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1682                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1683                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1684                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1685                            ) {
1686                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1687                                 opkt.destruct= av_destruct_packet;
1688                         } else {
1689                             opkt.data = data_buf;
1690                             opkt.size = data_size;
1691                         }
1692
1693                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1694                         ost->st->codec->frame_number++;
1695                         ost->frame_number++;
1696                         av_free_packet(&opkt);
1697                     }
1698                 }
1699             }
1700
1701 #if CONFIG_AVFILTER
1702             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1703                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1704             if(ist->picref)
1705                 avfilter_unref_buffer(ist->picref);
1706         }
1707 #endif
1708         av_free(buffer_to_free);
1709         /* XXX: allocate the subtitles in the codec ? */
1710         if (subtitle_to_free) {
1711             avsubtitle_free(subtitle_to_free);
1712             subtitle_to_free = NULL;
1713         }
1714     }
1715  discard_packet:
1716     if (pkt == NULL) {
1717         /* EOF handling */
1718
1719         for(i=0;i<nb_ostreams;i++) {
1720             ost = ost_table[i];
1721             if (ost->source_index == ist_index) {
1722                 AVCodecContext *enc= ost->st->codec;
1723                 os = output_files[ost->file_index];
1724
1725                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1726                     continue;
1727                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1728                     continue;
1729
1730                 if (ost->encoding_needed) {
1731                     for(;;) {
1732                         AVPacket pkt;
1733                         int fifo_bytes;
1734                         av_init_packet(&pkt);
1735                         pkt.stream_index= ost->index;
1736
1737                         switch(ost->st->codec->codec_type) {
1738                         case AVMEDIA_TYPE_AUDIO:
1739                             fifo_bytes = av_fifo_size(ost->fifo);
1740                             ret = 0;
1741                             /* encode any samples remaining in fifo */
1742                             if (fifo_bytes > 0) {
1743                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1744                                 int fs_tmp = enc->frame_size;
1745
1746                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1747                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1748                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1749                                 } else { /* pad */
1750                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1751                                     if (allocated_audio_buf_size < frame_bytes)
1752                                         ffmpeg_exit(1);
1753                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1754                                 }
1755
1756                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1757                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1758                                                           ost->st->time_base.num, enc->sample_rate);
1759                                 enc->frame_size = fs_tmp;
1760                             }
1761                             if(ret <= 0) {
1762                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1763                             }
1764                             if (ret < 0) {
1765                                 fprintf(stderr, "Audio encoding failed\n");
1766                                 ffmpeg_exit(1);
1767                             }
1768                             audio_size += ret;
1769                             pkt.flags |= AV_PKT_FLAG_KEY;
1770                             break;
1771                         case AVMEDIA_TYPE_VIDEO:
1772                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1773                             if (ret < 0) {
1774                                 fprintf(stderr, "Video encoding failed\n");
1775                                 ffmpeg_exit(1);
1776                             }
1777                             video_size += ret;
1778                             if(enc->coded_frame && enc->coded_frame->key_frame)
1779                                 pkt.flags |= AV_PKT_FLAG_KEY;
1780                             if (ost->logfile && enc->stats_out) {
1781                                 fprintf(ost->logfile, "%s", enc->stats_out);
1782                             }
1783                             break;
1784                         default:
1785                             ret=-1;
1786                         }
1787
1788                         if(ret<=0)
1789                             break;
1790                         pkt.data= bit_buffer;
1791                         pkt.size= ret;
1792                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1793                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1794                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1795                     }
1796                 }
1797             }
1798         }
1799     }
1800
1801     return 0;
1802  fail_decode:
1803     return -1;
1804 }
1805
1806 static void print_sdp(AVFormatContext **avc, int n)
1807 {
1808     char sdp[2048];
1809
1810     av_sdp_create(avc, n, sdp, sizeof(sdp));
1811     printf("SDP:\n%s\n", sdp);
1812     fflush(stdout);
1813 }
1814
1815 static int copy_chapters(int infile, int outfile)
1816 {
1817     AVFormatContext *is = input_files[infile];
1818     AVFormatContext *os = output_files[outfile];
1819     int i;
1820
1821     for (i = 0; i < is->nb_chapters; i++) {
1822         AVChapter *in_ch = is->chapters[i], *out_ch;
1823         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1824                                       AV_TIME_BASE_Q, in_ch->time_base);
1825         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1826                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1827
1828
1829         if (in_ch->end < ts_off)
1830             continue;
1831         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1832             break;
1833
1834         out_ch = av_mallocz(sizeof(AVChapter));
1835         if (!out_ch)
1836             return AVERROR(ENOMEM);
1837
1838         out_ch->id        = in_ch->id;
1839         out_ch->time_base = in_ch->time_base;
1840         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1841         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1842
1843         if (metadata_chapters_autocopy)
1844             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1845
1846         os->nb_chapters++;
1847         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1848         if (!os->chapters)
1849             return AVERROR(ENOMEM);
1850         os->chapters[os->nb_chapters - 1] = out_ch;
1851     }
1852     return 0;
1853 }
1854
1855 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1856                                     AVCodecContext *avctx)
1857 {
1858     char *p;
1859     int n = 1, i;
1860     int64_t t;
1861
1862     for (p = kf; *p; p++)
1863         if (*p == ',')
1864             n++;
1865     ost->forced_kf_count = n;
1866     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1867     if (!ost->forced_kf_pts) {
1868         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1869         ffmpeg_exit(1);
1870     }
1871     for (i = 0; i < n; i++) {
1872         p = i ? strchr(p, ',') + 1 : kf;
1873         t = parse_time_or_die("force_key_frames", p, 1);
1874         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1875     }
1876 }
1877
1878 /*
1879  * The following code is the main loop of the file converter
1880  */
1881 static int transcode(AVFormatContext **output_files,
1882                      int nb_output_files,
1883                      AVFormatContext **input_files,
1884                      int nb_input_files,
1885                      AVStreamMap *stream_maps, int nb_stream_maps)
1886 {
1887     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1888     AVFormatContext *is, *os;
1889     AVCodecContext *codec, *icodec;
1890     AVOutputStream *ost, **ost_table = NULL;
1891     AVInputStream *ist, **ist_table = NULL;
1892     AVInputFile *file_table;
1893     char error[1024];
1894     int key;
1895     int want_sdp = 1;
1896     uint8_t no_packet[MAX_FILES]={0};
1897     int no_packet_count=0;
1898
1899     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1900     if (!file_table)
1901         goto fail;
1902
1903     /* input stream init */
1904     j = 0;
1905     for(i=0;i<nb_input_files;i++) {
1906         is = input_files[i];
1907         file_table[i].ist_index = j;
1908         file_table[i].nb_streams = is->nb_streams;
1909         j += is->nb_streams;
1910     }
1911     nb_istreams = j;
1912
1913     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1914     if (!ist_table)
1915         goto fail;
1916
1917     for(i=0;i<nb_istreams;i++) {
1918         ist = av_mallocz(sizeof(AVInputStream));
1919         if (!ist)
1920             goto fail;
1921         ist_table[i] = ist;
1922     }
1923     j = 0;
1924     for(i=0;i<nb_input_files;i++) {
1925         is = input_files[i];
1926         for(k=0;k<is->nb_streams;k++) {
1927             ist = ist_table[j++];
1928             ist->st = is->streams[k];
1929             ist->file_index = i;
1930             ist->index = k;
1931             ist->discard = 1; /* the stream is discarded by default
1932                                  (changed later) */
1933
1934             if (rate_emu) {
1935                 ist->start = av_gettime();
1936             }
1937         }
1938     }
1939
1940     /* output stream init */
1941     nb_ostreams = 0;
1942     for(i=0;i<nb_output_files;i++) {
1943         os = output_files[i];
1944         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1945             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1946             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1947             ret = AVERROR(EINVAL);
1948             goto fail;
1949         }
1950         nb_ostreams += os->nb_streams;
1951     }
1952     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1953         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1954         ret = AVERROR(EINVAL);
1955         goto fail;
1956     }
1957
1958     /* Sanity check the mapping args -- do the input files & streams exist? */
1959     for(i=0;i<nb_stream_maps;i++) {
1960         int fi = stream_maps[i].file_index;
1961         int si = stream_maps[i].stream_index;
1962
1963         if (fi < 0 || fi > nb_input_files - 1 ||
1964             si < 0 || si > file_table[fi].nb_streams - 1) {
1965             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1966             ret = AVERROR(EINVAL);
1967             goto fail;
1968         }
1969         fi = stream_maps[i].sync_file_index;
1970         si = stream_maps[i].sync_stream_index;
1971         if (fi < 0 || fi > nb_input_files - 1 ||
1972             si < 0 || si > file_table[fi].nb_streams - 1) {
1973             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1974             ret = AVERROR(EINVAL);
1975             goto fail;
1976         }
1977     }
1978
1979     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1980     if (!ost_table)
1981         goto fail;
1982     n = 0;
1983     for(k=0;k<nb_output_files;k++) {
1984         os = output_files[k];
1985         for(i=0;i<os->nb_streams;i++,n++) {
1986             int found;
1987             ost = ost_table[n] = output_streams_for_file[k][i];
1988             ost->st = os->streams[i];
1989             if (nb_stream_maps > 0) {
1990                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1991                     stream_maps[n].stream_index;
1992
1993                 /* Sanity check that the stream types match */
1994                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1995                     int i= ost->file_index;
1996                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1997                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1998                         stream_maps[n].file_index, stream_maps[n].stream_index,
1999                         ost->file_index, ost->index);
2000                     ffmpeg_exit(1);
2001                 }
2002
2003             } else {
2004                 int best_nb_frames=-1;
2005                 /* get corresponding input stream index : we select the first one with the right type */
2006                 found = 0;
2007                 for(j=0;j<nb_istreams;j++) {
2008                     int skip=0;
2009                     ist = ist_table[j];
2010                     if(opt_programid){
2011                         int pi,si;
2012                         AVFormatContext *f= input_files[ ist->file_index ];
2013                         skip=1;
2014                         for(pi=0; pi<f->nb_programs; pi++){
2015                             AVProgram *p= f->programs[pi];
2016                             if(p->id == opt_programid)
2017                                 for(si=0; si<p->nb_stream_indexes; si++){
2018                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2019                                         skip=0;
2020                                 }
2021                         }
2022                     }
2023                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2024                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2025                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2026                             best_nb_frames= ist->st->codec_info_nb_frames;
2027                             ost->source_index = j;
2028                             found = 1;
2029                         }
2030                     }
2031                 }
2032
2033                 if (!found) {
2034                     if(! opt_programid) {
2035                         /* try again and reuse existing stream */
2036                         for(j=0;j<nb_istreams;j++) {
2037                             ist = ist_table[j];
2038                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2039                                 && ist->st->discard != AVDISCARD_ALL) {
2040                                 ost->source_index = j;
2041                                 found = 1;
2042                             }
2043                         }
2044                     }
2045                     if (!found) {
2046                         int i= ost->file_index;
2047                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2048                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2049                                 ost->file_index, ost->index);
2050                         ffmpeg_exit(1);
2051                     }
2052                 }
2053             }
2054             ist = ist_table[ost->source_index];
2055             ist->discard = 0;
2056             ost->sync_ist = (nb_stream_maps > 0) ?
2057                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2058                          stream_maps[n].sync_stream_index] : ist;
2059         }
2060     }
2061
2062     /* for each output stream, we compute the right encoding parameters */
2063     for(i=0;i<nb_ostreams;i++) {
2064         ost = ost_table[i];
2065         os = output_files[ost->file_index];
2066         ist = ist_table[ost->source_index];
2067
2068         codec = ost->st->codec;
2069         icodec = ist->st->codec;
2070
2071         if (metadata_streams_autocopy)
2072             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2073                              AV_METADATA_DONT_OVERWRITE);
2074
2075         ost->st->disposition = ist->st->disposition;
2076         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2077         codec->chroma_sample_location = icodec->chroma_sample_location;
2078
2079         if (ost->st->stream_copy) {
2080             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2081
2082             if (extra_size > INT_MAX)
2083                 goto fail;
2084
2085             /* if stream_copy is selected, no need to decode or encode */
2086             codec->codec_id = icodec->codec_id;
2087             codec->codec_type = icodec->codec_type;
2088
2089             if(!codec->codec_tag){
2090                 if(   !os->oformat->codec_tag
2091                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2092                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2093                     codec->codec_tag = icodec->codec_tag;
2094             }
2095
2096             codec->bit_rate = icodec->bit_rate;
2097             codec->rc_max_rate    = icodec->rc_max_rate;
2098             codec->rc_buffer_size = icodec->rc_buffer_size;
2099             codec->extradata= av_mallocz(extra_size);
2100             if (!codec->extradata)
2101                 goto fail;
2102             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2103             codec->extradata_size= icodec->extradata_size;
2104             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){
2105                 codec->time_base = icodec->time_base;
2106                 codec->time_base.num *= icodec->ticks_per_frame;
2107                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2108                           codec->time_base.num, codec->time_base.den, INT_MAX);
2109             }else
2110                 codec->time_base = ist->st->time_base;
2111             switch(codec->codec_type) {
2112             case AVMEDIA_TYPE_AUDIO:
2113                 if(audio_volume != 256) {
2114                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2115                     ffmpeg_exit(1);
2116                 }
2117                 codec->channel_layout = icodec->channel_layout;
2118                 codec->sample_rate = icodec->sample_rate;
2119                 codec->channels = icodec->channels;
2120                 codec->frame_size = icodec->frame_size;
2121                 codec->audio_service_type = icodec->audio_service_type;
2122                 codec->block_align= icodec->block_align;
2123                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2124                     codec->block_align= 0;
2125                 if(codec->codec_id == CODEC_ID_AC3)
2126                     codec->block_align= 0;
2127                 break;
2128             case AVMEDIA_TYPE_VIDEO:
2129                 codec->pix_fmt = icodec->pix_fmt;
2130                 codec->width = icodec->width;
2131                 codec->height = icodec->height;
2132                 codec->has_b_frames = icodec->has_b_frames;
2133                 break;
2134             case AVMEDIA_TYPE_SUBTITLE:
2135                 codec->width = icodec->width;
2136                 codec->height = icodec->height;
2137                 break;
2138             default:
2139                 abort();
2140             }
2141         } else {
2142             switch(codec->codec_type) {
2143             case AVMEDIA_TYPE_AUDIO:
2144                 ost->fifo= av_fifo_alloc(1024);
2145                 if(!ost->fifo)
2146                     goto fail;
2147                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2148                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2149                 icodec->request_channels = codec->channels;
2150                 ist->decoding_needed = 1;
2151                 ost->encoding_needed = 1;
2152                 ost->resample_sample_fmt  = icodec->sample_fmt;
2153                 ost->resample_sample_rate = icodec->sample_rate;
2154                 ost->resample_channels    = icodec->channels;
2155                 break;
2156             case AVMEDIA_TYPE_VIDEO:
2157                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2158                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2159                     ffmpeg_exit(1);
2160                 }
2161                 ost->video_resample = (codec->width != icodec->width   ||
2162                                        codec->height != icodec->height ||
2163                         (codec->pix_fmt != icodec->pix_fmt));
2164                 if (ost->video_resample) {
2165 #if !CONFIG_AVFILTER
2166                     avcodec_get_frame_defaults(&ost->pict_tmp);
2167                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2168                                          codec->width, codec->height)) {
2169                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2170                         ffmpeg_exit(1);
2171                     }
2172                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2173                     ost->img_resample_ctx = sws_getContext(
2174                         icodec->width,
2175                         icodec->height,
2176                             icodec->pix_fmt,
2177                             codec->width,
2178                             codec->height,
2179                             codec->pix_fmt,
2180                             sws_flags, NULL, NULL, NULL);
2181                     if (ost->img_resample_ctx == NULL) {
2182                         fprintf(stderr, "Cannot get resampling context\n");
2183                         ffmpeg_exit(1);
2184                     }
2185
2186                     ost->original_height = icodec->height;
2187                     ost->original_width  = icodec->width;
2188 #endif
2189                     codec->bits_per_raw_sample= 0;
2190                 }
2191                 ost->resample_height = icodec->height;
2192                 ost->resample_width  = icodec->width;
2193                 ost->resample_pix_fmt= icodec->pix_fmt;
2194                 ost->encoding_needed = 1;
2195                 ist->decoding_needed = 1;
2196
2197 #if CONFIG_AVFILTER
2198                 if (configure_filters(ist, ost)) {
2199                     fprintf(stderr, "Error opening filters!\n");
2200                     exit(1);
2201                 }
2202 #endif
2203                 break;
2204             case AVMEDIA_TYPE_SUBTITLE:
2205                 ost->encoding_needed = 1;
2206                 ist->decoding_needed = 1;
2207                 break;
2208             default:
2209                 abort();
2210                 break;
2211             }
2212             /* two pass mode */
2213             if (ost->encoding_needed &&
2214                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2215                 char logfilename[1024];
2216                 FILE *f;
2217
2218                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2219                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2220                          i);
2221                 if (codec->flags & CODEC_FLAG_PASS1) {
2222                     f = fopen(logfilename, "wb");
2223                     if (!f) {
2224                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2225                         ffmpeg_exit(1);
2226                     }
2227                     ost->logfile = f;
2228                 } else {
2229                     char  *logbuffer;
2230                     size_t logbuffer_size;
2231                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2232                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2233                         ffmpeg_exit(1);
2234                     }
2235                     codec->stats_in = logbuffer;
2236                 }
2237             }
2238         }
2239         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2240             int size= codec->width * codec->height;
2241             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2242         }
2243     }
2244
2245     if (!bit_buffer)
2246         bit_buffer = av_malloc(bit_buffer_size);
2247     if (!bit_buffer) {
2248         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2249                 bit_buffer_size);
2250         ret = AVERROR(ENOMEM);
2251         goto fail;
2252     }
2253
2254     /* open each encoder */
2255     for(i=0;i<nb_ostreams;i++) {
2256         ost = ost_table[i];
2257         if (ost->encoding_needed) {
2258             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2259             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2260             if (!codec)
2261                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2262             if (!codec) {
2263                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2264                          ost->st->codec->codec_id, ost->file_index, ost->index);
2265                 ret = AVERROR(EINVAL);
2266                 goto dump_format;
2267             }
2268             if (dec->subtitle_header) {
2269                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2270                 if (!ost->st->codec->subtitle_header) {
2271                     ret = AVERROR(ENOMEM);
2272                     goto dump_format;
2273                 }
2274                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2275                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2276             }
2277             if (avcodec_open(ost->st->codec, codec) < 0) {
2278                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2279                         ost->file_index, ost->index);
2280                 ret = AVERROR(EINVAL);
2281                 goto dump_format;
2282             }
2283             extra_size += ost->st->codec->extradata_size;
2284         }
2285     }
2286
2287     /* open each decoder */
2288     for(i=0;i<nb_istreams;i++) {
2289         ist = ist_table[i];
2290         if (ist->decoding_needed) {
2291             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2292             if (!codec)
2293                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2294             if (!codec) {
2295                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2296                         ist->st->codec->codec_id, ist->file_index, ist->index);
2297                 ret = AVERROR(EINVAL);
2298                 goto dump_format;
2299             }
2300             if (avcodec_open(ist->st->codec, codec) < 0) {
2301                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2302                         ist->file_index, ist->index);
2303                 ret = AVERROR(EINVAL);
2304                 goto dump_format;
2305             }
2306             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2307             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2308         }
2309     }
2310
2311     /* init pts */
2312     for(i=0;i<nb_istreams;i++) {
2313         AVStream *st;
2314         ist = ist_table[i];
2315         st= ist->st;
2316         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2317         ist->next_pts = AV_NOPTS_VALUE;
2318         init_pts_correction(&ist->pts_ctx);
2319         ist->is_start = 1;
2320     }
2321
2322     /* set meta data information from input file if required */
2323     for (i=0;i<nb_meta_data_maps;i++) {
2324         AVFormatContext *files[2];
2325         AVMetadata      **meta[2];
2326         int j;
2327
2328 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2329         if ((index) < 0 || (index) >= (nb_elems)) {\
2330             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2331                      (desc), (index));\
2332             ret = AVERROR(EINVAL);\
2333             goto dump_format;\
2334         }
2335
2336         int out_file_index = meta_data_maps[i][0].file;
2337         int in_file_index = meta_data_maps[i][1].file;
2338         if (in_file_index < 0 || out_file_index < 0)
2339             continue;
2340         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2341         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2342
2343         files[0] = output_files[out_file_index];
2344         files[1] = input_files[in_file_index];
2345
2346         for (j = 0; j < 2; j++) {
2347             AVMetaDataMap *map = &meta_data_maps[i][j];
2348
2349             switch (map->type) {
2350             case 'g':
2351                 meta[j] = &files[j]->metadata;
2352                 break;
2353             case 's':
2354                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2355                 meta[j] = &files[j]->streams[map->index]->metadata;
2356                 break;
2357             case 'c':
2358                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2359                 meta[j] = &files[j]->chapters[map->index]->metadata;
2360                 break;
2361             case 'p':
2362                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2363                 meta[j] = &files[j]->programs[map->index]->metadata;
2364                 break;
2365             }
2366         }
2367
2368         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2369     }
2370
2371     /* copy global metadata by default */
2372     if (metadata_global_autocopy) {
2373
2374         for (i = 0; i < nb_output_files; i++)
2375             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2376                              AV_METADATA_DONT_OVERWRITE);
2377     }
2378
2379     /* copy chapters according to chapter maps */
2380     for (i = 0; i < nb_chapter_maps; i++) {
2381         int infile  = chapter_maps[i].in_file;
2382         int outfile = chapter_maps[i].out_file;
2383
2384         if (infile < 0 || outfile < 0)
2385             continue;
2386         if (infile >= nb_input_files) {
2387             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2388             ret = AVERROR(EINVAL);
2389             goto dump_format;
2390         }
2391         if (outfile >= nb_output_files) {
2392             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2393             ret = AVERROR(EINVAL);
2394             goto dump_format;
2395         }
2396         copy_chapters(infile, outfile);
2397     }
2398
2399     /* copy chapters from the first input file that has them*/
2400     if (!nb_chapter_maps)
2401         for (i = 0; i < nb_input_files; i++) {
2402             if (!input_files[i]->nb_chapters)
2403                 continue;
2404
2405             for (j = 0; j < nb_output_files; j++)
2406                 if ((ret = copy_chapters(i, j)) < 0)
2407                     goto dump_format;
2408             break;
2409         }
2410
2411     /* open files and write file headers */
2412     for(i=0;i<nb_output_files;i++) {
2413         os = output_files[i];
2414         if (av_write_header(os) < 0) {
2415             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2416             ret = AVERROR(EINVAL);
2417             goto dump_format;
2418         }
2419         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2420             want_sdp = 0;
2421         }
2422     }
2423
2424  dump_format:
2425     /* dump the file output parameters - cannot be done before in case
2426        of stream copy */
2427     for(i=0;i<nb_output_files;i++) {
2428         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2429     }
2430
2431     /* dump the stream mapping */
2432     if (verbose >= 0) {
2433         fprintf(stderr, "Stream mapping:\n");
2434         for(i=0;i<nb_ostreams;i++) {
2435             ost = ost_table[i];
2436             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2437                     ist_table[ost->source_index]->file_index,
2438                     ist_table[ost->source_index]->index,
2439                     ost->file_index,
2440                     ost->index);
2441             if (ost->sync_ist != ist_table[ost->source_index])
2442                 fprintf(stderr, " [sync #%d.%d]",
2443                         ost->sync_ist->file_index,
2444                         ost->sync_ist->index);
2445             fprintf(stderr, "\n");
2446         }
2447     }
2448
2449     if (ret) {
2450         fprintf(stderr, "%s\n", error);
2451         goto fail;
2452     }
2453
2454     if (want_sdp) {
2455         print_sdp(output_files, nb_output_files);
2456     }
2457
2458     if (!using_stdin && verbose >= 0) {
2459 #if HAVE_KBHIT
2460         fprintf(stderr, "Press [q] to stop encoding\n");
2461 #else
2462         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2463 #endif
2464         avio_set_interrupt_cb(decode_interrupt_cb);
2465     }
2466     term_init();
2467
2468     timer_start = av_gettime();
2469
2470     for(; received_sigterm == 0;) {
2471         int file_index, ist_index;
2472         AVPacket pkt;
2473         double ipts_min;
2474         double opts_min;
2475
2476     redo:
2477         ipts_min= 1e100;
2478         opts_min= 1e100;
2479         /* if 'q' pressed, exits */
2480         if (!using_stdin) {
2481             if (q_pressed)
2482                 break;
2483             /* read_key() returns 0 on EOF */
2484             key = read_key();
2485             if (key == 'q')
2486                 break;
2487         }
2488
2489         /* select the stream that we must read now by looking at the
2490            smallest output pts */
2491         file_index = -1;
2492         for(i=0;i<nb_ostreams;i++) {
2493             double ipts, opts;
2494             ost = ost_table[i];
2495             os = output_files[ost->file_index];
2496             ist = ist_table[ost->source_index];
2497             if(ist->is_past_recording_time || no_packet[ist->file_index])
2498                 continue;
2499                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2500             ipts = (double)ist->pts;
2501             if (!file_table[ist->file_index].eof_reached){
2502                 if(ipts < ipts_min) {
2503                     ipts_min = ipts;
2504                     if(input_sync ) file_index = ist->file_index;
2505                 }
2506                 if(opts < opts_min) {
2507                     opts_min = opts;
2508                     if(!input_sync) file_index = ist->file_index;
2509                 }
2510             }
2511             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2512                 file_index= -1;
2513                 break;
2514             }
2515         }
2516         /* if none, if is finished */
2517         if (file_index < 0) {
2518             if(no_packet_count){
2519                 no_packet_count=0;
2520                 memset(no_packet, 0, sizeof(no_packet));
2521                 usleep(10000);
2522                 continue;
2523             }
2524             break;
2525         }
2526
2527         /* finish if limit size exhausted */
2528         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2529             break;
2530
2531         /* read a frame from it and output it in the fifo */
2532         is = input_files[file_index];
2533         ret= av_read_frame(is, &pkt);
2534         if(ret == AVERROR(EAGAIN)){
2535             no_packet[file_index]=1;
2536             no_packet_count++;
2537             continue;
2538         }
2539         if (ret < 0) {
2540             file_table[file_index].eof_reached = 1;
2541             if (opt_shortest)
2542                 break;
2543             else
2544                 continue;
2545         }
2546
2547         no_packet_count=0;
2548         memset(no_packet, 0, sizeof(no_packet));
2549
2550         if (do_pkt_dump) {
2551             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2552                              is->streams[pkt.stream_index]);
2553         }
2554         /* the following test is needed in case new streams appear
2555            dynamically in stream : we ignore them */
2556         if (pkt.stream_index >= file_table[file_index].nb_streams)
2557             goto discard_packet;
2558         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2559         ist = ist_table[ist_index];
2560         if (ist->discard)
2561             goto discard_packet;
2562
2563         if (pkt.dts != AV_NOPTS_VALUE)
2564             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2565         if (pkt.pts != AV_NOPTS_VALUE)
2566             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2567
2568         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2569             && input_files_ts_scale[file_index][pkt.stream_index]){
2570             if(pkt.pts != AV_NOPTS_VALUE)
2571                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2572             if(pkt.dts != AV_NOPTS_VALUE)
2573                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2574         }
2575
2576 //        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);
2577         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2578             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2579             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2580             int64_t delta= pkt_dts - ist->next_pts;
2581             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2582                 input_files_ts_offset[ist->file_index]-= delta;
2583                 if (verbose > 2)
2584                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2585                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2586                 if(pkt.pts != AV_NOPTS_VALUE)
2587                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2588             }
2589         }
2590
2591         /* finish if recording time exhausted */
2592         if (recording_time != INT64_MAX &&
2593             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2594             ist->is_past_recording_time = 1;
2595             goto discard_packet;
2596         }
2597
2598         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2599         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2600
2601             if (verbose >= 0)
2602                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2603                         ist->file_index, ist->index);
2604             if (exit_on_error)
2605                 ffmpeg_exit(1);
2606             av_free_packet(&pkt);
2607             goto redo;
2608         }
2609
2610     discard_packet:
2611         av_free_packet(&pkt);
2612
2613         /* dump report by using the output first video and audio streams */
2614         print_report(output_files, ost_table, nb_ostreams, 0);
2615     }
2616
2617     /* at the end of stream, we must flush the decoder buffers */
2618     for(i=0;i<nb_istreams;i++) {
2619         ist = ist_table[i];
2620         if (ist->decoding_needed) {
2621             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2622         }
2623     }
2624
2625     term_exit();
2626
2627     /* write the trailer if needed and close file */
2628     for(i=0;i<nb_output_files;i++) {
2629         os = output_files[i];
2630         av_write_trailer(os);
2631     }
2632
2633     /* dump report by using the first video and audio streams */
2634     print_report(output_files, ost_table, nb_ostreams, 1);
2635
2636     /* close each encoder */
2637     for(i=0;i<nb_ostreams;i++) {
2638         ost = ost_table[i];
2639         if (ost->encoding_needed) {
2640             av_freep(&ost->st->codec->stats_in);
2641             avcodec_close(ost->st->codec);
2642         }
2643     }
2644
2645     /* close each decoder */
2646     for(i=0;i<nb_istreams;i++) {
2647         ist = ist_table[i];
2648         if (ist->decoding_needed) {
2649             avcodec_close(ist->st->codec);
2650         }
2651     }
2652 #if CONFIG_AVFILTER
2653     avfilter_graph_free(&graph);
2654 #endif
2655
2656     /* finished ! */
2657     ret = 0;
2658
2659  fail:
2660     av_freep(&bit_buffer);
2661     av_free(file_table);
2662
2663     if (ist_table) {
2664         for(i=0;i<nb_istreams;i++) {
2665             ist = ist_table[i];
2666             av_free(ist);
2667         }
2668         av_free(ist_table);
2669     }
2670     if (ost_table) {
2671         for(i=0;i<nb_ostreams;i++) {
2672             ost = ost_table[i];
2673             if (ost) {
2674                 if (ost->st->stream_copy)
2675                     av_freep(&ost->st->codec->extradata);
2676                 if (ost->logfile) {
2677                     fclose(ost->logfile);
2678                     ost->logfile = NULL;
2679                 }
2680                 av_fifo_free(ost->fifo); /* works even if fifo is not
2681                                              initialized but set to zero */
2682                 av_freep(&ost->st->codec->subtitle_header);
2683                 av_free(ost->pict_tmp.data[0]);
2684                 av_free(ost->forced_kf_pts);
2685                 if (ost->video_resample)
2686                     sws_freeContext(ost->img_resample_ctx);
2687                 if (ost->resample)
2688                     audio_resample_close(ost->resample);
2689                 if (ost->reformat_ctx)
2690                     av_audio_convert_free(ost->reformat_ctx);
2691                 av_free(ost);
2692             }
2693         }
2694         av_free(ost_table);
2695     }
2696     return ret;
2697 }
2698
2699 static void opt_format(const char *arg)
2700 {
2701     last_asked_format = arg;
2702 }
2703
2704 static void opt_video_rc_override_string(const char *arg)
2705 {
2706     video_rc_override_string = arg;
2707 }
2708
2709 static int opt_me_threshold(const char *opt, const char *arg)
2710 {
2711     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2712     return 0;
2713 }
2714
2715 static int opt_verbose(const char *opt, const char *arg)
2716 {
2717     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2718     return 0;
2719 }
2720
2721 static int opt_frame_rate(const char *opt, const char *arg)
2722 {
2723     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2724         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2725         ffmpeg_exit(1);
2726     }
2727     return 0;
2728 }
2729
2730 static int opt_bitrate(const char *opt, const char *arg)
2731 {
2732     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2733
2734     opt_default(opt, arg);
2735
2736     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2737         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2738
2739     return 0;
2740 }
2741
2742 static int opt_frame_crop(const char *opt, const char *arg)
2743 {
2744     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2745     return AVERROR(EINVAL);
2746 }
2747
2748 static void opt_frame_size(const char *arg)
2749 {
2750     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2751         fprintf(stderr, "Incorrect frame size\n");
2752         ffmpeg_exit(1);
2753     }
2754 }
2755
2756 static int opt_pad(const char *opt, const char *arg) {
2757     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2758     return -1;
2759 }
2760
2761 static void opt_frame_pix_fmt(const char *arg)
2762 {
2763     if (strcmp(arg, "list")) {
2764         frame_pix_fmt = av_get_pix_fmt(arg);
2765         if (frame_pix_fmt == PIX_FMT_NONE) {
2766             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2767             ffmpeg_exit(1);
2768         }
2769     } else {
2770         show_pix_fmts();
2771         ffmpeg_exit(0);
2772     }
2773 }
2774
2775 static void opt_frame_aspect_ratio(const char *arg)
2776 {
2777     int x = 0, y = 0;
2778     double ar = 0;
2779     const char *p;
2780     char *end;
2781
2782     p = strchr(arg, ':');
2783     if (p) {
2784         x = strtol(arg, &end, 10);
2785         if (end == p)
2786             y = strtol(end+1, &end, 10);
2787         if (x > 0 && y > 0)
2788             ar = (double)x / (double)y;
2789     } else
2790         ar = strtod(arg, NULL);
2791
2792     if (!ar) {
2793         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2794         ffmpeg_exit(1);
2795     }
2796     frame_aspect_ratio = ar;
2797
2798     x = vfilters ? strlen(vfilters) : 0;
2799     vfilters = av_realloc(vfilters, x+100);
2800     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2801 }
2802
2803 static int opt_metadata(const char *opt, const char *arg)
2804 {
2805     char *mid= strchr(arg, '=');
2806
2807     if(!mid){
2808         fprintf(stderr, "Missing =\n");
2809         ffmpeg_exit(1);
2810     }
2811     *mid++= 0;
2812
2813     av_metadata_set2(&metadata, arg, mid, 0);
2814
2815     return 0;
2816 }
2817
2818 static void opt_qscale(const char *arg)
2819 {
2820     video_qscale = atof(arg);
2821     if (video_qscale <= 0 ||
2822         video_qscale > 255) {
2823         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2824         ffmpeg_exit(1);
2825     }
2826 }
2827
2828 static void opt_top_field_first(const char *arg)
2829 {
2830     top_field_first= atoi(arg);
2831 }
2832
2833 static int opt_thread_count(const char *opt, const char *arg)
2834 {
2835     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2836 #if !HAVE_THREADS
2837     if (verbose >= 0)
2838         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2839 #endif
2840     return 0;
2841 }
2842
2843 static void opt_audio_sample_fmt(const char *arg)
2844 {
2845     if (strcmp(arg, "list")) {
2846         audio_sample_fmt = av_get_sample_fmt(arg);
2847         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2848             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2849             ffmpeg_exit(1);
2850         }
2851     } else {
2852         list_fmts(av_get_sample_fmt_string, AV_SAMPLE_FMT_NB);
2853         ffmpeg_exit(0);
2854     }
2855 }
2856
2857 static int opt_audio_rate(const char *opt, const char *arg)
2858 {
2859     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2860     return 0;
2861 }
2862
2863 static int opt_audio_channels(const char *opt, const char *arg)
2864 {
2865     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2866     return 0;
2867 }
2868
2869 static void opt_video_channel(const char *arg)
2870 {
2871     video_channel = strtol(arg, NULL, 0);
2872 }
2873
2874 static void opt_video_standard(const char *arg)
2875 {
2876     video_standard = av_strdup(arg);
2877 }
2878
2879 static void opt_codec(int *pstream_copy, char **pcodec_name,
2880                       int codec_type, const char *arg)
2881 {
2882     av_freep(pcodec_name);
2883     if (!strcmp(arg, "copy")) {
2884         *pstream_copy = 1;
2885     } else {
2886         *pcodec_name = av_strdup(arg);
2887     }
2888 }
2889
2890 static void opt_audio_codec(const char *arg)
2891 {
2892     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2893 }
2894
2895 static void opt_video_codec(const char *arg)
2896 {
2897     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2898 }
2899
2900 static void opt_subtitle_codec(const char *arg)
2901 {
2902     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2903 }
2904
2905 static int opt_codec_tag(const char *opt, const char *arg)
2906 {
2907     char *tail;
2908     uint32_t *codec_tag;
2909
2910     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2911                 !strcmp(opt, "vtag") ? &video_codec_tag :
2912                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2913     if (!codec_tag)
2914         return -1;
2915
2916     *codec_tag = strtol(arg, &tail, 0);
2917     if (!tail || *tail)
2918         *codec_tag = AV_RL32(arg);
2919
2920     return 0;
2921 }
2922
2923 static void opt_map(const char *arg)
2924 {
2925     AVStreamMap *m;
2926     char *p;
2927
2928     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2929     m = &stream_maps[nb_stream_maps-1];
2930
2931     m->file_index = strtol(arg, &p, 0);
2932     if (*p)
2933         p++;
2934
2935     m->stream_index = strtol(p, &p, 0);
2936     if (*p) {
2937         p++;
2938         m->sync_file_index = strtol(p, &p, 0);
2939         if (*p)
2940             p++;
2941         m->sync_stream_index = strtol(p, &p, 0);
2942     } else {
2943         m->sync_file_index = m->file_index;
2944         m->sync_stream_index = m->stream_index;
2945     }
2946 }
2947
2948 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2949 {
2950     *endptr = arg;
2951     if (*arg == ',') {
2952         *type = *(++arg);
2953         switch (*arg) {
2954         case 'g':
2955             break;
2956         case 's':
2957         case 'c':
2958         case 'p':
2959             *index = strtol(++arg, endptr, 0);
2960             break;
2961         default:
2962             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2963             ffmpeg_exit(1);
2964         }
2965     } else
2966         *type = 'g';
2967 }
2968
2969 static void opt_map_metadata(const char *arg)
2970 {
2971     AVMetaDataMap *m, *m1;
2972     char *p;
2973
2974     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2975                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2976
2977     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2978     m->file = strtol(arg, &p, 0);
2979     parse_meta_type(p, &m->type, &m->index, &p);
2980     if (*p)
2981         p++;
2982
2983     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
2984     m1->file = strtol(p, &p, 0);
2985     parse_meta_type(p, &m1->type, &m1->index, &p);
2986
2987     if (m->type == 'g' || m1->type == 'g')
2988         metadata_global_autocopy = 0;
2989     if (m->type == 's' || m1->type == 's')
2990         metadata_streams_autocopy = 0;
2991     if (m->type == 'c' || m1->type == 'c')
2992         metadata_chapters_autocopy = 0;
2993 }
2994
2995 static void opt_map_meta_data(const char *arg)
2996 {
2997     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
2998                     "Use -map_metadata instead.\n");
2999     opt_map_metadata(arg);
3000 }
3001
3002 static void opt_map_chapters(const char *arg)
3003 {
3004     AVChapterMap *c;
3005     char *p;
3006
3007     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3008                               nb_chapter_maps + 1);
3009     c = &chapter_maps[nb_chapter_maps - 1];
3010     c->out_file = strtol(arg, &p, 0);
3011     if (*p)
3012         p++;
3013
3014     c->in_file = strtol(p, &p, 0);
3015 }
3016
3017 static void opt_input_ts_scale(const char *arg)
3018 {
3019     unsigned int stream;
3020     double scale;
3021     char *p;
3022
3023     stream = strtol(arg, &p, 0);
3024     if (*p)
3025         p++;
3026     scale= strtod(p, &p);
3027
3028     if(stream >= MAX_STREAMS)
3029         ffmpeg_exit(1);
3030
3031     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);
3032     input_files_ts_scale[nb_input_files][stream]= scale;
3033 }
3034
3035 static int opt_recording_time(const char *opt, const char *arg)
3036 {
3037     recording_time = parse_time_or_die(opt, arg, 1);
3038     return 0;
3039 }
3040
3041 static int opt_start_time(const char *opt, const char *arg)
3042 {
3043     start_time = parse_time_or_die(opt, arg, 1);
3044     return 0;
3045 }
3046
3047 static int opt_recording_timestamp(const char *opt, const char *arg)
3048 {
3049     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3050     return 0;
3051 }
3052
3053 static int opt_input_ts_offset(const char *opt, const char *arg)
3054 {
3055     input_ts_offset = parse_time_or_die(opt, arg, 1);
3056     return 0;
3057 }
3058
3059 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3060 {
3061     const char *codec_string = encoder ? "encoder" : "decoder";
3062     AVCodec *codec;
3063
3064     if(!name)
3065         return CODEC_ID_NONE;
3066     codec = encoder ?
3067         avcodec_find_encoder_by_name(name) :
3068         avcodec_find_decoder_by_name(name);
3069     if(!codec) {
3070         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3071         ffmpeg_exit(1);
3072     }
3073     if(codec->type != type) {
3074         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3075         ffmpeg_exit(1);
3076     }
3077     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3078        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3079         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3080                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3081                 codec_string, codec->name);
3082         codec = encoder ?
3083             avcodec_find_encoder(codec->id) :
3084             avcodec_find_decoder(codec->id);
3085         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3086             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3087                     codec_string, codec->name);
3088         ffmpeg_exit(1);
3089     }
3090     return codec->id;
3091 }
3092
3093 static void opt_input_file(const char *filename)
3094 {
3095     AVFormatContext *ic;
3096     AVFormatParameters params, *ap = &params;
3097     AVInputFormat *file_iformat = NULL;
3098     int err, i, ret, rfps, rfps_base;
3099     int64_t timestamp;
3100
3101     if (last_asked_format) {
3102         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3103             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3104             ffmpeg_exit(1);
3105         }
3106         last_asked_format = NULL;
3107     }
3108
3109     if (!strcmp(filename, "-"))
3110         filename = "pipe:";
3111
3112     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3113                     !strcmp(filename, "/dev/stdin");
3114
3115     /* get default parameters from command line */
3116     ic = avformat_alloc_context();
3117     if (!ic) {
3118         print_error(filename, AVERROR(ENOMEM));
3119         ffmpeg_exit(1);
3120     }
3121
3122     memset(ap, 0, sizeof(*ap));
3123     ap->prealloced_context = 1;
3124     ap->sample_rate = audio_sample_rate;
3125     ap->channels = audio_channels;
3126     ap->time_base.den = frame_rate.num;
3127     ap->time_base.num = frame_rate.den;
3128     ap->width = frame_width;
3129     ap->height = frame_height;
3130     ap->pix_fmt = frame_pix_fmt;
3131    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3132     ap->channel = video_channel;
3133     ap->standard = video_standard;
3134
3135     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3136
3137     ic->video_codec_id   =
3138         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3139                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3140     ic->audio_codec_id   =
3141         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3142                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3143     ic->subtitle_codec_id=
3144         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3145                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3146     ic->flags |= AVFMT_FLAG_NONBLOCK;
3147
3148     /* open the input file with generic libav function */
3149     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3150     if (err < 0) {
3151         print_error(filename, err);
3152         ffmpeg_exit(1);
3153     }
3154     if(opt_programid) {
3155         int i, j;
3156         int found=0;
3157         for(i=0; i<ic->nb_streams; i++){
3158             ic->streams[i]->discard= AVDISCARD_ALL;
3159         }
3160         for(i=0; i<ic->nb_programs; i++){
3161             AVProgram *p= ic->programs[i];
3162             if(p->id != opt_programid){
3163                 p->discard = AVDISCARD_ALL;
3164             }else{
3165                 found=1;
3166                 for(j=0; j<p->nb_stream_indexes; j++){
3167                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3168                 }
3169             }
3170         }
3171         if(!found){
3172             fprintf(stderr, "Specified program id not found\n");
3173             ffmpeg_exit(1);
3174         }
3175         opt_programid=0;
3176     }
3177
3178     ic->loop_input = loop_input;
3179
3180     /* If not enough info to get the stream parameters, we decode the
3181        first frames to get it. (used in mpeg case for example) */
3182     ret = av_find_stream_info(ic);
3183     if (ret < 0 && verbose >= 0) {
3184         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3185         av_close_input_file(ic);
3186         ffmpeg_exit(1);
3187     }
3188
3189     timestamp = start_time;
3190     /* add the stream start time */
3191     if (ic->start_time != AV_NOPTS_VALUE)
3192         timestamp += ic->start_time;
3193
3194     /* if seeking requested, we execute it */
3195     if (start_time != 0) {
3196         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3197         if (ret < 0) {
3198             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3199                     filename, (double)timestamp / AV_TIME_BASE);
3200         }
3201         /* reset seek info */
3202         start_time = 0;
3203     }
3204
3205     /* update the current parameters so that they match the one of the input stream */
3206     for(i=0;i<ic->nb_streams;i++) {
3207         AVStream *st = ic->streams[i];
3208         AVCodecContext *dec = st->codec;
3209         dec->thread_count = thread_count;
3210         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3211         switch (dec->codec_type) {
3212         case AVMEDIA_TYPE_AUDIO:
3213             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3214             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]);
3215             //fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
3216             channel_layout    = dec->channel_layout;
3217             audio_channels    = dec->channels;
3218             audio_sample_rate = dec->sample_rate;
3219             audio_sample_fmt  = dec->sample_fmt;
3220             if(audio_disable)
3221                 st->discard= AVDISCARD_ALL;
3222             /* Note that av_find_stream_info can add more streams, and we
3223              * currently have no chance of setting up lowres decoding
3224              * early enough for them. */
3225             if (dec->lowres)
3226                 audio_sample_rate >>= dec->lowres;
3227             break;
3228         case AVMEDIA_TYPE_VIDEO:
3229             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3230             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]);
3231             frame_height = dec->height;
3232             frame_width  = dec->width;
3233             if(ic->streams[i]->sample_aspect_ratio.num)
3234                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3235             else
3236                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3237             frame_aspect_ratio *= (float) dec->width / dec->height;
3238             frame_pix_fmt = dec->pix_fmt;
3239             rfps      = ic->streams[i]->r_frame_rate.num;
3240             rfps_base = ic->streams[i]->r_frame_rate.den;
3241             if (dec->lowres) {
3242                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3243                 frame_height >>= dec->lowres;
3244                 frame_width  >>= dec->lowres;
3245                 dec->height = frame_height;
3246                 dec->width  = frame_width;
3247             }
3248             if(me_threshold)
3249                 dec->debug |= FF_DEBUG_MV;
3250
3251             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3252
3253                 if (verbose >= 0)
3254                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3255                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3256
3257                     (float)rfps / rfps_base, rfps, rfps_base);
3258             }
3259             /* update the current frame rate to match the stream frame rate */
3260             frame_rate.num = rfps;
3261             frame_rate.den = rfps_base;
3262
3263             if(video_disable)
3264                 st->discard= AVDISCARD_ALL;
3265             else if(video_discard)
3266                 st->discard= video_discard;
3267             break;
3268         case AVMEDIA_TYPE_DATA:
3269             break;
3270         case AVMEDIA_TYPE_SUBTITLE:
3271             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3272             if(subtitle_disable)
3273                 st->discard = AVDISCARD_ALL;
3274             break;
3275         case AVMEDIA_TYPE_ATTACHMENT:
3276         case AVMEDIA_TYPE_UNKNOWN:
3277             break;
3278         default:
3279             abort();
3280         }
3281     }
3282
3283     input_files[nb_input_files] = ic;
3284     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3285     /* dump the file content */
3286     if (verbose >= 0)
3287         av_dump_format(ic, nb_input_files, filename, 0);
3288
3289     nb_input_files++;
3290
3291     video_channel = 0;
3292
3293     av_freep(&video_codec_name);
3294     av_freep(&audio_codec_name);
3295     av_freep(&subtitle_codec_name);
3296 }
3297
3298 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3299                                          int *has_subtitle_ptr)
3300 {
3301     int has_video, has_audio, has_subtitle, i, j;
3302     AVFormatContext *ic;
3303
3304     has_video = 0;
3305     has_audio = 0;
3306     has_subtitle = 0;
3307     for(j=0;j<nb_input_files;j++) {
3308         ic = input_files[j];
3309         for(i=0;i<ic->nb_streams;i++) {
3310             AVCodecContext *enc = ic->streams[i]->codec;
3311             switch(enc->codec_type) {
3312             case AVMEDIA_TYPE_AUDIO:
3313                 has_audio = 1;
3314                 break;
3315             case AVMEDIA_TYPE_VIDEO:
3316                 has_video = 1;
3317                 break;
3318             case AVMEDIA_TYPE_SUBTITLE:
3319                 has_subtitle = 1;
3320                 break;
3321             case AVMEDIA_TYPE_DATA:
3322             case AVMEDIA_TYPE_ATTACHMENT:
3323             case AVMEDIA_TYPE_UNKNOWN:
3324                 break;
3325             default:
3326                 abort();
3327             }
3328         }
3329     }
3330     *has_video_ptr = has_video;
3331     *has_audio_ptr = has_audio;
3332     *has_subtitle_ptr = has_subtitle;
3333 }
3334
3335 static void new_video_stream(AVFormatContext *oc, int file_idx)
3336 {
3337     AVStream *st;
3338     AVOutputStream *ost;
3339     AVCodecContext *video_enc;
3340     enum CodecID codec_id = CODEC_ID_NONE;
3341     AVCodec *codec= NULL;
3342
3343     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3344     if (!st) {
3345         fprintf(stderr, "Could not alloc stream\n");
3346         ffmpeg_exit(1);
3347     }
3348     ost = new_output_stream(oc, file_idx);
3349
3350     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3351     if(!video_stream_copy){
3352         if (video_codec_name) {
3353             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3354                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3355             codec = avcodec_find_encoder_by_name(video_codec_name);
3356             output_codecs[nb_output_codecs-1] = codec;
3357         } else {
3358             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3359             codec = avcodec_find_encoder(codec_id);
3360         }
3361     }
3362
3363     avcodec_get_context_defaults3(st->codec, codec);
3364     ost->bitstream_filters = video_bitstream_filters;
3365     video_bitstream_filters= NULL;
3366
3367     st->codec->thread_count= thread_count;
3368
3369     video_enc = st->codec;
3370
3371     if(video_codec_tag)
3372         video_enc->codec_tag= video_codec_tag;
3373
3374     if(   (video_global_header&1)
3375        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3376         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3377         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3378     }
3379     if(video_global_header&2){
3380         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3381         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3382     }
3383
3384     if (video_stream_copy) {
3385         st->stream_copy = 1;
3386         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3387         video_enc->sample_aspect_ratio =
3388         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3389     } else {
3390         const char *p;
3391         int i;
3392         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3393
3394         video_enc->codec_id = codec_id;
3395         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3396
3397         if (codec && codec->supported_framerates && !force_fps)
3398             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3399         video_enc->time_base.den = fps.num;
3400         video_enc->time_base.num = fps.den;
3401
3402         video_enc->width = frame_width;
3403         video_enc->height = frame_height;
3404         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3405         video_enc->pix_fmt = frame_pix_fmt;
3406         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3407
3408         choose_pixel_fmt(st, codec);
3409
3410         if (intra_only)
3411             video_enc->gop_size = 0;
3412         if (video_qscale || same_quality) {
3413             video_enc->flags |= CODEC_FLAG_QSCALE;
3414             video_enc->global_quality=
3415                 st->quality = FF_QP2LAMBDA * video_qscale;
3416         }
3417
3418         if(intra_matrix)
3419             video_enc->intra_matrix = intra_matrix;
3420         if(inter_matrix)
3421             video_enc->inter_matrix = inter_matrix;
3422
3423         p= video_rc_override_string;
3424         for(i=0; p; i++){
3425             int start, end, q;
3426             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3427             if(e!=3){
3428                 fprintf(stderr, "error parsing rc_override\n");
3429                 ffmpeg_exit(1);
3430             }
3431             video_enc->rc_override=
3432                 av_realloc(video_enc->rc_override,
3433                            sizeof(RcOverride)*(i+1));
3434             video_enc->rc_override[i].start_frame= start;
3435             video_enc->rc_override[i].end_frame  = end;
3436             if(q>0){
3437                 video_enc->rc_override[i].qscale= q;
3438                 video_enc->rc_override[i].quality_factor= 1.0;
3439             }
3440             else{
3441                 video_enc->rc_override[i].qscale= 0;
3442                 video_enc->rc_override[i].quality_factor= -q/100.0;
3443             }
3444             p= strchr(p, '/');
3445             if(p) p++;
3446         }
3447         video_enc->rc_override_count=i;
3448         if (!video_enc->rc_initial_buffer_occupancy)
3449             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3450         video_enc->me_threshold= me_threshold;
3451         video_enc->intra_dc_precision= intra_dc_precision - 8;
3452
3453         if (do_psnr)
3454             video_enc->flags|= CODEC_FLAG_PSNR;
3455
3456         /* two pass mode */
3457         if (do_pass) {
3458             if (do_pass == 1) {
3459                 video_enc->flags |= CODEC_FLAG_PASS1;
3460             } else {
3461                 video_enc->flags |= CODEC_FLAG_PASS2;
3462             }
3463         }
3464
3465         if (forced_key_frames)
3466             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3467     }
3468     if (video_language) {
3469         av_metadata_set2(&st->metadata, "language", video_language, 0);
3470         av_freep(&video_language);
3471     }
3472
3473     /* reset some key parameters */
3474     video_disable = 0;
3475     av_freep(&video_codec_name);
3476     av_freep(&forced_key_frames);
3477     video_stream_copy = 0;
3478     frame_pix_fmt = PIX_FMT_NONE;
3479 }
3480
3481 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3482 {
3483     AVStream *st;
3484     AVOutputStream *ost;
3485     AVCodec *codec= NULL;
3486     AVCodecContext *audio_enc;
3487     enum CodecID codec_id = CODEC_ID_NONE;
3488
3489     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3490     if (!st) {
3491         fprintf(stderr, "Could not alloc stream\n");
3492         ffmpeg_exit(1);
3493     }
3494     ost = new_output_stream(oc, file_idx);
3495
3496     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3497     if(!audio_stream_copy){
3498         if (audio_codec_name) {
3499             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3500                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3501             codec = avcodec_find_encoder_by_name(audio_codec_name);
3502             output_codecs[nb_output_codecs-1] = codec;
3503         } else {
3504             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3505             codec = avcodec_find_encoder(codec_id);
3506         }
3507     }
3508
3509     avcodec_get_context_defaults3(st->codec, codec);
3510
3511     ost->bitstream_filters = audio_bitstream_filters;
3512     audio_bitstream_filters= NULL;
3513
3514     st->codec->thread_count= thread_count;
3515
3516     audio_enc = st->codec;
3517     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3518
3519     if(audio_codec_tag)
3520         audio_enc->codec_tag= audio_codec_tag;
3521
3522     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3523         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3524         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3525     }
3526     if (audio_stream_copy) {
3527         st->stream_copy = 1;
3528         audio_enc->channels = audio_channels;
3529         audio_enc->sample_rate = audio_sample_rate;
3530     } else {
3531         audio_enc->codec_id = codec_id;
3532         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3533
3534         if (audio_qscale > QSCALE_NONE) {
3535             audio_enc->flags |= CODEC_FLAG_QSCALE;
3536             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3537         }
3538         audio_enc->channels = audio_channels;
3539         audio_enc->sample_fmt = audio_sample_fmt;
3540         audio_enc->sample_rate = audio_sample_rate;
3541         audio_enc->channel_layout = channel_layout;
3542         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3543             audio_enc->channel_layout = 0;
3544         choose_sample_fmt(st, codec);
3545         choose_sample_rate(st, codec);
3546     }
3547     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3548     if (audio_language) {
3549         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3550         av_freep(&audio_language);
3551     }
3552
3553     /* reset some key parameters */
3554     audio_disable = 0;
3555     av_freep(&audio_codec_name);
3556     audio_stream_copy = 0;
3557 }
3558
3559 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3560 {
3561     AVStream *st;
3562     AVOutputStream *ost;
3563     AVCodec *codec=NULL;
3564     AVCodecContext *subtitle_enc;
3565     enum CodecID codec_id = CODEC_ID_NONE;
3566
3567     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3568     if (!st) {
3569         fprintf(stderr, "Could not alloc stream\n");
3570         ffmpeg_exit(1);
3571     }
3572     ost = new_output_stream(oc, file_idx);
3573     subtitle_enc = st->codec;
3574     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3575     if(!subtitle_stream_copy){
3576         if (subtitle_codec_name) {
3577             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3578                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3579             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3580         } else {
3581             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3582             codec = avcodec_find_encoder(codec_id);
3583         }
3584     }
3585     avcodec_get_context_defaults3(st->codec, codec);
3586
3587     ost->bitstream_filters = subtitle_bitstream_filters;
3588     subtitle_bitstream_filters= NULL;
3589
3590     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3591
3592     if(subtitle_codec_tag)
3593         subtitle_enc->codec_tag= subtitle_codec_tag;
3594
3595     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3596         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3597         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3598     }
3599     if (subtitle_stream_copy) {
3600         st->stream_copy = 1;
3601     } else {
3602         subtitle_enc->codec_id = codec_id;
3603         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3604     }
3605
3606     if (subtitle_language) {
3607         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3608         av_freep(&subtitle_language);
3609     }
3610
3611     subtitle_disable = 0;
3612     av_freep(&subtitle_codec_name);
3613     subtitle_stream_copy = 0;
3614 }
3615
3616 static int opt_new_stream(const char *opt, const char *arg)
3617 {
3618     AVFormatContext *oc;
3619     int file_idx = nb_output_files - 1;
3620     if (nb_output_files <= 0) {
3621         fprintf(stderr, "At least one output file must be specified\n");
3622         ffmpeg_exit(1);
3623     }
3624     oc = output_files[file_idx];
3625
3626     if      (!strcmp(opt, "newvideo"   )) new_video_stream   (oc, file_idx);
3627     else if (!strcmp(opt, "newaudio"   )) new_audio_stream   (oc, file_idx);
3628     else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc, file_idx);
3629     else av_assert0(0);
3630     return 0;
3631 }
3632
3633 /* arg format is "output-stream-index:streamid-value". */
3634 static int opt_streamid(const char *opt, const char *arg)
3635 {
3636     int idx;
3637     char *p;
3638     char idx_str[16];
3639
3640     strncpy(idx_str, arg, sizeof(idx_str));
3641     idx_str[sizeof(idx_str)-1] = '\0';
3642     p = strchr(idx_str, ':');
3643     if (!p) {
3644         fprintf(stderr,
3645                 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3646                 arg, opt);
3647         ffmpeg_exit(1);
3648     }
3649     *p++ = '\0';
3650     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3651     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3652     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3653     return 0;
3654 }
3655
3656 static void opt_output_file(const char *filename)
3657 {
3658     AVFormatContext *oc;
3659     int err, use_video, use_audio, use_subtitle;
3660     int input_has_video, input_has_audio, input_has_subtitle;
3661     AVFormatParameters params, *ap = &params;
3662     AVOutputFormat *file_oformat;
3663
3664     if (!strcmp(filename, "-"))
3665         filename = "pipe:";
3666