Add support for request_sample_format in ffmpeg and ffplay.
[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 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/libm.h"
45 #include "libavformat/os_support.h"
46
47 #if CONFIG_AVFILTER
48 # include "libavfilter/avfilter.h"
49 # include "libavfilter/avfiltergraph.h"
50 # include "libavfilter/vsrc_buffer.h"
51 #endif
52
53 #if HAVE_SYS_RESOURCE_H
54 #include <sys/types.h>
55 #include <sys/time.h>
56 #include <sys/resource.h>
57 #elif HAVE_GETPROCESSTIMES
58 #include <windows.h>
59 #endif
60 #if HAVE_GETPROCESSMEMORYINFO
61 #include <windows.h>
62 #include <psapi.h>
63 #endif
64
65 #if HAVE_SYS_SELECT_H
66 #include <sys/select.h>
67 #endif
68
69 #include <time.h>
70
71 #include "cmdutils.h"
72
73 #include "libavutil/avassert.h"
74
75 const char program_name[] = "ffmpeg";
76 const int program_birth_year = 2000;
77
78 /* select an input stream for an output stream */
79 typedef struct AVStreamMap {
80     int file_index;
81     int stream_index;
82     int sync_file_index;
83     int sync_stream_index;
84 } AVStreamMap;
85
86 /**
87  * select an input file for an output file
88  */
89 typedef struct AVMetaDataMap {
90     int  file;      //< file index
91     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
92     int  index;     //< stream/chapter/program number
93 } AVMetaDataMap;
94
95 typedef struct AVChapterMap {
96     int in_file;
97     int out_file;
98 } AVChapterMap;
99
100 static const OptionDef options[];
101
102 #define MAX_FILES 100
103 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
104
105 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
106
107 static const char *last_asked_format = NULL;
108 static AVFormatContext *input_files[MAX_FILES];
109 static int64_t input_files_ts_offset[MAX_FILES];
110 static double *input_files_ts_scale[MAX_FILES] = {NULL};
111 static AVCodec **input_codecs = NULL;
112 static int nb_input_files = 0;
113 static int nb_input_codecs = 0;
114 static int nb_input_files_ts_scale[MAX_FILES] = {0};
115
116 static AVFormatContext *output_files[MAX_FILES];
117 static AVCodec **output_codecs = NULL;
118 static int nb_output_files = 0;
119 static int nb_output_codecs = 0;
120
121 static AVStreamMap *stream_maps = NULL;
122 static int nb_stream_maps;
123
124 /* first item specifies output metadata, second is input */
125 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
126 static int nb_meta_data_maps;
127 static int metadata_global_autocopy   = 1;
128 static int metadata_streams_autocopy  = 1;
129 static int metadata_chapters_autocopy = 1;
130
131 static AVChapterMap *chapter_maps = NULL;
132 static int nb_chapter_maps;
133
134 /* indexed by output file stream index */
135 static int *streamid_map = NULL;
136 static int nb_streamid_map = 0;
137
138 static int frame_width  = 0;
139 static int frame_height = 0;
140 static float frame_aspect_ratio = 0;
141 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
142 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
143 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
144 static AVRational frame_rate;
145 static float video_qscale = 0;
146 static uint16_t *intra_matrix = NULL;
147 static uint16_t *inter_matrix = NULL;
148 static const char *video_rc_override_string=NULL;
149 static int video_disable = 0;
150 static int video_discard = 0;
151 static char *video_codec_name = NULL;
152 static unsigned int video_codec_tag = 0;
153 static char *video_language = NULL;
154 static int same_quality = 0;
155 static int do_deinterlace = 0;
156 static int top_field_first = -1;
157 static int me_threshold = 0;
158 static int intra_dc_precision = 8;
159 static int loop_input = 0;
160 static int loop_output = AVFMT_NOOUTPUTLOOP;
161 static int qp_hist = 0;
162 #if CONFIG_AVFILTER
163 static char *vfilters = NULL;
164 #endif
165
166 static int intra_only = 0;
167 static int audio_sample_rate = 44100;
168 static int64_t channel_layout = 0;
169 #define QSCALE_NONE -99999
170 static float audio_qscale = QSCALE_NONE;
171 static int audio_disable = 0;
172 static int audio_channels = 1;
173 static char  *audio_codec_name = NULL;
174 static unsigned int audio_codec_tag = 0;
175 static char *audio_language = NULL;
176
177 static int subtitle_disable = 0;
178 static char *subtitle_codec_name = NULL;
179 static char *subtitle_language = NULL;
180 static unsigned int subtitle_codec_tag = 0;
181
182 static int data_disable = 0;
183 static char *data_codec_name = NULL;
184 static unsigned int data_codec_tag = 0;
185
186 static float mux_preload= 0.5;
187 static float mux_max_delay= 0.7;
188
189 static int64_t recording_time = INT64_MAX;
190 static int64_t start_time = 0;
191 static int64_t recording_timestamp = 0;
192 static int64_t input_ts_offset = 0;
193 static int file_overwrite = 0;
194 static AVMetadata *metadata;
195 static int do_benchmark = 0;
196 static int do_hex_dump = 0;
197 static int do_pkt_dump = 0;
198 static int do_psnr = 0;
199 static int do_pass = 0;
200 static char *pass_logfilename_prefix = NULL;
201 static int audio_stream_copy = 0;
202 static int video_stream_copy = 0;
203 static int subtitle_stream_copy = 0;
204 static int data_stream_copy = 0;
205 static int video_sync_method= -1;
206 static int audio_sync_method= 0;
207 static float audio_drift_threshold= 0.1;
208 static int copy_ts= 0;
209 static int copy_tb;
210 static int opt_shortest = 0;
211 static int video_global_header = 0;
212 static char *vstats_filename;
213 static FILE *vstats_file;
214 static int opt_programid = 0;
215 static int copy_initial_nonkeyframes = 0;
216
217 static int rate_emu = 0;
218
219 static int  video_channel = 0;
220 static char *video_standard;
221
222 static int audio_volume = 256;
223
224 static int exit_on_error = 0;
225 static int using_stdin = 0;
226 static int verbose = 1;
227 static int thread_count= 1;
228 static int64_t video_size = 0;
229 static int64_t audio_size = 0;
230 static int64_t extra_size = 0;
231 static int nb_frames_dup = 0;
232 static int nb_frames_drop = 0;
233 static int input_sync;
234 static uint64_t limit_filesize = 0;
235 static int force_fps = 0;
236 static char *forced_key_frames = NULL;
237
238 static float dts_delta_threshold = 10;
239
240 static int64_t timer_start;
241
242 static uint8_t *audio_buf;
243 static uint8_t *audio_out;
244 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
245
246 static short *samples;
247
248 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
249 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
250 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
251
252 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
253
254 struct AVInputStream;
255
256 typedef struct AVOutputStream {
257     int file_index;          /* file index */
258     int index;               /* stream index in the output file */
259     int source_index;        /* AVInputStream index */
260     AVStream *st;            /* stream in the output file */
261     int encoding_needed;     /* true if encoding needed for this stream */
262     int frame_number;
263     /* input pts and corresponding output pts
264        for A/V sync */
265     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
266     struct AVInputStream *sync_ist; /* input stream to sync against */
267     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
268     AVBitStreamFilterContext *bitstream_filters;
269     /* video only */
270     int video_resample;
271     AVFrame pict_tmp;      /* temporary image for resampling */
272     struct SwsContext *img_resample_ctx; /* for image resampling */
273     int resample_height;
274     int resample_width;
275     int resample_pix_fmt;
276
277     float frame_aspect_ratio;
278
279     /* forced key frames */
280     int64_t *forced_kf_pts;
281     int forced_kf_count;
282     int forced_kf_index;
283
284     /* audio only */
285     int audio_resample;
286     ReSampleContext *resample; /* for audio resampling */
287     int resample_sample_fmt;
288     int resample_channels;
289     int resample_sample_rate;
290     int reformat_pair;
291     AVAudioConvert *reformat_ctx;
292     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
293     FILE *logfile;
294
295 #if CONFIG_AVFILTER
296     AVFilterContext *output_video_filter;
297     AVFilterContext *input_video_filter;
298     AVFilterBufferRef *picref;
299     char *avfilter;
300     AVFilterGraph *graph;
301 #endif
302
303    int sws_flags;
304 } AVOutputStream;
305
306 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
307 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
308
309 typedef struct AVInputStream {
310     int file_index;
311     int index;
312     AVStream *st;
313     int discard;             /* true if stream data should be discarded */
314     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
315     int64_t sample_index;      /* current sample */
316
317     int64_t       start;     /* time when read started */
318     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
319                                 is not defined */
320     int64_t       pts;       /* current pts */
321     PtsCorrectionContext pts_ctx;
322     int is_start;            /* is 1 at the start and after a discontinuity */
323     int showed_multi_packet_warning;
324     int is_past_recording_time;
325 #if CONFIG_AVFILTER
326     AVFrame *filter_frame;
327     int has_filter_frame;
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_video_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     ost->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(&ost->input_video_filter, avfilter_get_by_name("buffer"),
363                                        "src", args, NULL, ost->graph);
364     if (ret < 0)
365         return ret;
366     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
367                                        "out", NULL, &ffsink_ctx, ost->graph);
368     if (ret < 0)
369         return ret;
370     last_filter = ost->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                  ost->sws_flags);
377         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
378                                                 NULL, args, NULL, ost->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", ost->sws_flags);
386     ost->graph->scale_sws_opts = av_strdup(args);
387
388     if (ost->avfilter) {
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 = ost->output_video_filter;
399         inputs->pad_idx = 0;
400         inputs->next    = NULL;
401
402         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
403             return ret;
404         av_freep(&ost->avfilter);
405     } else {
406         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
407             return ret;
408     }
409
410     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
411         return ret;
412
413     codec->width  = ost->output_video_filter->inputs[0]->w;
414     codec->height = ost->output_video_filter->inputs[0]->h;
415     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
416         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
417         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
418         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
419
420     return 0;
421 }
422 #endif /* CONFIG_AVFILTER */
423
424 static void term_exit(void)
425 {
426     av_log(NULL, AV_LOG_QUIET, "");
427 }
428
429 static volatile int received_sigterm = 0;
430
431 static void
432 sigterm_handler(int sig)
433 {
434     received_sigterm = sig;
435     term_exit();
436 }
437
438 static void term_init(void)
439 {
440     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
441     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
442 #ifdef SIGXCPU
443     signal(SIGXCPU, sigterm_handler);
444 #endif
445 }
446
447 static int decode_interrupt_cb(void)
448 {
449     return received_sigterm;
450 }
451
452 static int ffmpeg_exit(int ret)
453 {
454     int i;
455
456     /* close files */
457     for(i=0;i<nb_output_files;i++) {
458         AVFormatContext *s = output_files[i];
459         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
460             avio_close(s->pb);
461         avformat_free_context(s);
462         av_free(output_streams_for_file[i]);
463     }
464     for(i=0;i<nb_input_files;i++) {
465         av_close_input_file(input_files[i]);
466         av_free(input_files_ts_scale[i]);
467     }
468
469     av_free(intra_matrix);
470     av_free(inter_matrix);
471
472     if (vstats_file)
473         fclose(vstats_file);
474     av_free(vstats_filename);
475
476     av_free(streamid_map);
477     av_free(input_codecs);
478     av_free(output_codecs);
479     av_free(stream_maps);
480     av_free(meta_data_maps);
481
482     av_free(video_codec_name);
483     av_free(audio_codec_name);
484     av_free(subtitle_codec_name);
485     av_free(data_codec_name);
486
487     av_free(video_standard);
488
489     uninit_opts();
490     av_free(audio_buf);
491     av_free(audio_out);
492     allocated_audio_buf_size= allocated_audio_out_size= 0;
493     av_free(samples);
494
495 #if CONFIG_AVFILTER
496     avfilter_uninit();
497 #endif
498
499     if (received_sigterm) {
500         fprintf(stderr,
501             "Received signal %d: terminating.\n",
502             (int) received_sigterm);
503         exit (255);
504     }
505
506     exit(ret); /* not all OS-es handle main() return value */
507     return ret;
508 }
509
510 /* similar to ff_dynarray_add() and av_fast_realloc() */
511 static void *grow_array(void *array, int elem_size, int *size, int new_size)
512 {
513     if (new_size >= INT_MAX / elem_size) {
514         fprintf(stderr, "Array too big.\n");
515         ffmpeg_exit(1);
516     }
517     if (*size < new_size) {
518         uint8_t *tmp = av_realloc(array, new_size*elem_size);
519         if (!tmp) {
520             fprintf(stderr, "Could not alloc buffer.\n");
521             ffmpeg_exit(1);
522         }
523         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
524         *size = new_size;
525         return tmp;
526     }
527     return array;
528 }
529
530 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
531 {
532     if(codec && codec->sample_fmts){
533         const enum AVSampleFormat *p= codec->sample_fmts;
534         for(; *p!=-1; p++){
535             if(*p == st->codec->sample_fmt)
536                 break;
537         }
538         if (*p == -1) {
539             av_log(NULL, AV_LOG_WARNING,
540                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
541                    av_get_sample_fmt_name(st->codec->sample_fmt),
542                    codec->name,
543                    av_get_sample_fmt_name(codec->sample_fmts[0]));
544             st->codec->sample_fmt = codec->sample_fmts[0];
545         }
546     }
547 }
548
549 /**
550  * Update the requested input sample format based on the output sample format.
551  * This is currently only used to request float output from decoders which
552  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
553  * Ideally this will be removed in the future when decoders do not do format
554  * conversion and only output in their native format.
555  */
556 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
557                               AVCodecContext *enc)
558 {
559     /* if sample formats match or a decoder sample format has already been
560        requested, just return */
561     if (enc->sample_fmt == dec->sample_fmt ||
562         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
563         return;
564
565     /* if decoder supports more than one output format */
566     if (dec_codec && dec_codec->sample_fmts &&
567         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
568         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
569         enum AVSampleFormat *p;
570         int min_dec = -1, min_inc = -1;
571
572         /* find a matching sample format in the encoder */
573         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
574             if (*p == enc->sample_fmt) {
575                 dec->request_sample_fmt = *p;
576                 return;
577             } else if (*p > enc->sample_fmt) {
578                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
579             } else
580                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
581         }
582
583         /* if none match, provide the one that matches quality closest */
584         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
585                                   enc->sample_fmt - min_dec;
586     }
587 }
588
589 static void choose_sample_rate(AVStream *st, AVCodec *codec)
590 {
591     if(codec && codec->supported_samplerates){
592         const int *p= codec->supported_samplerates;
593         int best=0;
594         int best_dist=INT_MAX;
595         for(; *p; p++){
596             int dist= abs(st->codec->sample_rate - *p);
597             if(dist < best_dist){
598                 best_dist= dist;
599                 best= *p;
600             }
601         }
602         if(best_dist){
603             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
604         }
605         st->codec->sample_rate= best;
606     }
607 }
608
609 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
610 {
611     if(codec && codec->pix_fmts){
612         const enum PixelFormat *p= codec->pix_fmts;
613         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
614             if(st->codec->codec_id==CODEC_ID_MJPEG){
615                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
616             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
617                 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};
618             }
619         }
620         for(; *p!=-1; p++){
621             if(*p == st->codec->pix_fmt)
622                 break;
623         }
624         if (*p == -1) {
625             if(st->codec->pix_fmt != PIX_FMT_NONE)
626                 av_log(NULL, AV_LOG_WARNING,
627                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
628                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
629                         codec->name,
630                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
631             st->codec->pix_fmt = codec->pix_fmts[0];
632         }
633     }
634 }
635
636 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
637 {
638     int idx = oc->nb_streams - 1;
639     AVOutputStream *ost;
640
641     output_streams_for_file[file_idx] =
642         grow_array(output_streams_for_file[file_idx],
643                    sizeof(*output_streams_for_file[file_idx]),
644                    &nb_output_streams_for_file[file_idx],
645                    oc->nb_streams);
646     ost = output_streams_for_file[file_idx][idx] =
647         av_mallocz(sizeof(AVOutputStream));
648     if (!ost) {
649         fprintf(stderr, "Could not alloc output stream\n");
650         ffmpeg_exit(1);
651     }
652     ost->file_index = file_idx;
653     ost->index = idx;
654
655     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
656     return ost;
657 }
658
659 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
660 {
661     int i, err;
662     AVFormatContext *ic;
663     int nopts = 0;
664
665     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
666     if (err < 0)
667         return err;
668     /* copy stream format */
669     s->nb_streams = 0;
670     for(i=0;i<ic->nb_streams;i++) {
671         AVStream *st;
672         AVCodec *codec;
673
674         s->nb_streams++;
675
676         // FIXME: a more elegant solution is needed
677         st = av_mallocz(sizeof(AVStream));
678         memcpy(st, ic->streams[i], sizeof(AVStream));
679         st->codec = avcodec_alloc_context();
680         if (!st->codec) {
681             print_error(filename, AVERROR(ENOMEM));
682             ffmpeg_exit(1);
683         }
684         avcodec_copy_context(st->codec, ic->streams[i]->codec);
685         s->streams[i] = st;
686
687         codec = avcodec_find_encoder(st->codec->codec_id);
688         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
689             if (audio_stream_copy) {
690                 st->stream_copy = 1;
691             } else
692                 choose_sample_fmt(st, codec);
693         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
694             if (video_stream_copy) {
695                 st->stream_copy = 1;
696             } else
697                 choose_pixel_fmt(st, codec);
698         }
699
700         if(st->codec->flags & CODEC_FLAG_BITEXACT)
701             nopts = 1;
702
703         new_output_stream(s, nb_output_files);
704     }
705
706     if (!nopts)
707         s->timestamp = av_gettime();
708
709     av_close_input_file(ic);
710     return 0;
711 }
712
713 static double
714 get_sync_ipts(const AVOutputStream *ost)
715 {
716     const AVInputStream *ist = ost->sync_ist;
717     return (double)(ist->pts - start_time)/AV_TIME_BASE;
718 }
719
720 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
721     int ret;
722
723     while(bsfc){
724         AVPacket new_pkt= *pkt;
725         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
726                                           &new_pkt.data, &new_pkt.size,
727                                           pkt->data, pkt->size,
728                                           pkt->flags & AV_PKT_FLAG_KEY);
729         if(a>0){
730             av_free_packet(pkt);
731             new_pkt.destruct= av_destruct_packet;
732         } else if(a<0){
733             fprintf(stderr, "%s failed for stream %d, codec %s",
734                     bsfc->filter->name, pkt->stream_index,
735                     avctx->codec ? avctx->codec->name : "copy");
736             print_error("", a);
737             if (exit_on_error)
738                 ffmpeg_exit(1);
739         }
740         *pkt= new_pkt;
741
742         bsfc= bsfc->next;
743     }
744
745     ret= av_interleaved_write_frame(s, pkt);
746     if(ret < 0){
747         print_error("av_interleaved_write_frame()", ret);
748         ffmpeg_exit(1);
749     }
750 }
751
752 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
753
754 static void do_audio_out(AVFormatContext *s,
755                          AVOutputStream *ost,
756                          AVInputStream *ist,
757                          unsigned char *buf, int size)
758 {
759     uint8_t *buftmp;
760     int64_t audio_out_size, audio_buf_size;
761     int64_t allocated_for_size= size;
762
763     int size_out, frame_bytes, ret, resample_changed;
764     AVCodecContext *enc= ost->st->codec;
765     AVCodecContext *dec= ist->st->codec;
766     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
767     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
768     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
769
770 need_realloc:
771     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
772     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
773     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
774     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
775     audio_buf_size*= osize*enc->channels;
776
777     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
778     if(coded_bps > 8*osize)
779         audio_out_size= audio_out_size * coded_bps / (8*osize);
780     audio_out_size += FF_MIN_BUFFER_SIZE;
781
782     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
783         fprintf(stderr, "Buffer sizes too large\n");
784         ffmpeg_exit(1);
785     }
786
787     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
788     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
789     if (!audio_buf || !audio_out){
790         fprintf(stderr, "Out of memory in do_audio_out\n");
791         ffmpeg_exit(1);
792     }
793
794     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
795         ost->audio_resample = 1;
796
797     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
798                        ost->resample_channels    != dec->channels   ||
799                        ost->resample_sample_rate != dec->sample_rate;
800
801     if ((ost->audio_resample && !ost->resample) || resample_changed) {
802         if (resample_changed) {
803             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",
804                    ist->file_index, ist->index,
805                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
806                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
807             ost->resample_sample_fmt  = dec->sample_fmt;
808             ost->resample_channels    = dec->channels;
809             ost->resample_sample_rate = dec->sample_rate;
810             if (ost->resample)
811                 audio_resample_close(ost->resample);
812         }
813         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
814         if (audio_sync_method <= 1 &&
815             ost->resample_sample_fmt  == enc->sample_fmt &&
816             ost->resample_channels    == enc->channels   &&
817             ost->resample_sample_rate == enc->sample_rate) {
818             ost->resample = NULL;
819             ost->audio_resample = 0;
820         } else if (ost->audio_resample) {
821             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
822                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
823             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
824                                                    enc->sample_rate, dec->sample_rate,
825                                                    enc->sample_fmt,  dec->sample_fmt,
826                                                    16, 10, 0, 0.8);
827             if (!ost->resample) {
828                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
829                         dec->channels, dec->sample_rate,
830                         enc->channels, enc->sample_rate);
831                 ffmpeg_exit(1);
832             }
833         }
834     }
835
836 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
837     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
838         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
839         if (ost->reformat_ctx)
840             av_audio_convert_free(ost->reformat_ctx);
841         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
842                                                    dec->sample_fmt, 1, NULL, 0);
843         if (!ost->reformat_ctx) {
844             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
845                 av_get_sample_fmt_name(dec->sample_fmt),
846                 av_get_sample_fmt_name(enc->sample_fmt));
847             ffmpeg_exit(1);
848         }
849         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
850     }
851
852     if(audio_sync_method){
853         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
854                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
855         double idelta= delta*dec->sample_rate / enc->sample_rate;
856         int byte_delta= ((int)idelta)*2*dec->channels;
857
858         //FIXME resample delay
859         if(fabs(delta) > 50){
860             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
861                 if(byte_delta < 0){
862                     byte_delta= FFMAX(byte_delta, -size);
863                     size += byte_delta;
864                     buf  -= byte_delta;
865                     if(verbose > 2)
866                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
867                     if(!size)
868                         return;
869                     ist->is_start=0;
870                 }else{
871                     static uint8_t *input_tmp= NULL;
872                     input_tmp= av_realloc(input_tmp, byte_delta + size);
873
874                     if(byte_delta > allocated_for_size - size){
875                         allocated_for_size= byte_delta + (int64_t)size;
876                         goto need_realloc;
877                     }
878                     ist->is_start=0;
879
880                     memset(input_tmp, 0, byte_delta);
881                     memcpy(input_tmp + byte_delta, buf, size);
882                     buf= input_tmp;
883                     size += byte_delta;
884                     if(verbose > 2)
885                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
886                 }
887             }else if(audio_sync_method>1){
888                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
889                 av_assert0(ost->audio_resample);
890                 if(verbose > 2)
891                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
892 //                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));
893                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
894             }
895         }
896     }else
897         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
898                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
899
900     if (ost->audio_resample) {
901         buftmp = audio_buf;
902         size_out = audio_resample(ost->resample,
903                                   (short *)buftmp, (short *)buf,
904                                   size / (dec->channels * isize));
905         size_out = size_out * enc->channels * osize;
906     } else {
907         buftmp = buf;
908         size_out = size;
909     }
910
911     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
912         const void *ibuf[6]= {buftmp};
913         void *obuf[6]= {audio_buf};
914         int istride[6]= {isize};
915         int ostride[6]= {osize};
916         int len= size_out/istride[0];
917         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
918             printf("av_audio_convert() failed\n");
919             if (exit_on_error)
920                 ffmpeg_exit(1);
921             return;
922         }
923         buftmp = audio_buf;
924         size_out = len*osize;
925     }
926
927     /* now encode as many frames as possible */
928     if (enc->frame_size > 1) {
929         /* output resampled raw samples */
930         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
931             fprintf(stderr, "av_fifo_realloc2() failed\n");
932             ffmpeg_exit(1);
933         }
934         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
935
936         frame_bytes = enc->frame_size * osize * enc->channels;
937
938         while (av_fifo_size(ost->fifo) >= frame_bytes) {
939             AVPacket pkt;
940             av_init_packet(&pkt);
941
942             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
943
944             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
945
946             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
947                                        (short *)audio_buf);
948             if (ret < 0) {
949                 fprintf(stderr, "Audio encoding failed\n");
950                 ffmpeg_exit(1);
951             }
952             audio_size += ret;
953             pkt.stream_index= ost->index;
954             pkt.data= audio_out;
955             pkt.size= ret;
956             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
957                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
958             pkt.flags |= AV_PKT_FLAG_KEY;
959             write_frame(s, &pkt, enc, ost->bitstream_filters);
960
961             ost->sync_opts += enc->frame_size;
962         }
963     } else {
964         AVPacket pkt;
965         av_init_packet(&pkt);
966
967         ost->sync_opts += size_out / (osize * enc->channels);
968
969         /* output a pcm frame */
970         /* determine the size of the coded buffer */
971         size_out /= osize;
972         if (coded_bps)
973             size_out = size_out*coded_bps/8;
974
975         if(size_out > audio_out_size){
976             fprintf(stderr, "Internal error, buffer size too small\n");
977             ffmpeg_exit(1);
978         }
979
980         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
981         ret = avcodec_encode_audio(enc, audio_out, size_out,
982                                    (short *)buftmp);
983         if (ret < 0) {
984             fprintf(stderr, "Audio encoding failed\n");
985             ffmpeg_exit(1);
986         }
987         audio_size += ret;
988         pkt.stream_index= ost->index;
989         pkt.data= audio_out;
990         pkt.size= ret;
991         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
992             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
993         pkt.flags |= AV_PKT_FLAG_KEY;
994         write_frame(s, &pkt, enc, ost->bitstream_filters);
995     }
996 }
997
998 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
999 {
1000     AVCodecContext *dec;
1001     AVPicture *picture2;
1002     AVPicture picture_tmp;
1003     uint8_t *buf = 0;
1004
1005     dec = ist->st->codec;
1006
1007     /* deinterlace : must be done before any resize */
1008     if (do_deinterlace) {
1009         int size;
1010
1011         /* create temporary picture */
1012         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1013         buf = av_malloc(size);
1014         if (!buf)
1015             return;
1016
1017         picture2 = &picture_tmp;
1018         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1019
1020         if(avpicture_deinterlace(picture2, picture,
1021                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1022             /* if error, do not deinterlace */
1023             fprintf(stderr, "Deinterlacing failed\n");
1024             av_free(buf);
1025             buf = NULL;
1026             picture2 = picture;
1027         }
1028     } else {
1029         picture2 = picture;
1030     }
1031
1032     if (picture != picture2)
1033         *picture = *picture2;
1034     *bufp = buf;
1035 }
1036
1037 /* we begin to correct av delay at this threshold */
1038 #define AV_DELAY_MAX 0.100
1039
1040 static void do_subtitle_out(AVFormatContext *s,
1041                             AVOutputStream *ost,
1042                             AVInputStream *ist,
1043                             AVSubtitle *sub,
1044                             int64_t pts)
1045 {
1046     static uint8_t *subtitle_out = NULL;
1047     int subtitle_out_max_size = 1024 * 1024;
1048     int subtitle_out_size, nb, i;
1049     AVCodecContext *enc;
1050     AVPacket pkt;
1051
1052     if (pts == AV_NOPTS_VALUE) {
1053         fprintf(stderr, "Subtitle packets must have a pts\n");
1054         if (exit_on_error)
1055             ffmpeg_exit(1);
1056         return;
1057     }
1058
1059     enc = ost->st->codec;
1060
1061     if (!subtitle_out) {
1062         subtitle_out = av_malloc(subtitle_out_max_size);
1063     }
1064
1065     /* Note: DVB subtitle need one packet to draw them and one other
1066        packet to clear them */
1067     /* XXX: signal it in the codec context ? */
1068     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1069         nb = 2;
1070     else
1071         nb = 1;
1072
1073     for(i = 0; i < nb; i++) {
1074         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1075         // start_display_time is required to be 0
1076         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1077         sub->end_display_time -= sub->start_display_time;
1078         sub->start_display_time = 0;
1079         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1080                                                     subtitle_out_max_size, sub);
1081         if (subtitle_out_size < 0) {
1082             fprintf(stderr, "Subtitle encoding failed\n");
1083             ffmpeg_exit(1);
1084         }
1085
1086         av_init_packet(&pkt);
1087         pkt.stream_index = ost->index;
1088         pkt.data = subtitle_out;
1089         pkt.size = subtitle_out_size;
1090         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1091         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1092             /* XXX: the pts correction is handled here. Maybe handling
1093                it in the codec would be better */
1094             if (i == 0)
1095                 pkt.pts += 90 * sub->start_display_time;
1096             else
1097                 pkt.pts += 90 * sub->end_display_time;
1098         }
1099         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1100     }
1101 }
1102
1103 static int bit_buffer_size= 1024*256;
1104 static uint8_t *bit_buffer= NULL;
1105
1106 static void do_video_out(AVFormatContext *s,
1107                          AVOutputStream *ost,
1108                          AVInputStream *ist,
1109                          AVFrame *in_picture,
1110                          int *frame_size)
1111 {
1112     int nb_frames, i, ret, resample_changed;
1113     AVFrame *final_picture, *formatted_picture, *resampling_dst;
1114     AVCodecContext *enc, *dec;
1115     double sync_ipts;
1116
1117     enc = ost->st->codec;
1118     dec = ist->st->codec;
1119
1120     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1121
1122     /* by default, we output a single frame */
1123     nb_frames = 1;
1124
1125     *frame_size = 0;
1126
1127     if(video_sync_method){
1128         double vdelta = sync_ipts - ost->sync_opts;
1129         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1130         if (vdelta < -1.1)
1131             nb_frames = 0;
1132         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1133             if(vdelta<=-0.6){
1134                 nb_frames=0;
1135             }else if(vdelta>0.6)
1136                 ost->sync_opts= lrintf(sync_ipts);
1137         }else if (vdelta > 1.1)
1138             nb_frames = lrintf(vdelta);
1139 //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);
1140         if (nb_frames == 0){
1141             ++nb_frames_drop;
1142             if (verbose>2)
1143                 fprintf(stderr, "*** drop!\n");
1144         }else if (nb_frames > 1) {
1145             nb_frames_dup += nb_frames - 1;
1146             if (verbose>2)
1147                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1148         }
1149     }else
1150         ost->sync_opts= lrintf(sync_ipts);
1151
1152     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1153     if (nb_frames <= 0)
1154         return;
1155
1156     formatted_picture = in_picture;
1157     final_picture = formatted_picture;
1158     resampling_dst = &ost->pict_tmp;
1159
1160     resample_changed = ost->resample_width   != dec->width  ||
1161                        ost->resample_height  != dec->height ||
1162                        ost->resample_pix_fmt != dec->pix_fmt;
1163
1164     if (resample_changed) {
1165         av_log(NULL, AV_LOG_INFO,
1166                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1167                ist->file_index, ist->index,
1168                ost->resample_width, ost->resample_height, avcodec_get_pix_fmt_name(ost->resample_pix_fmt),
1169                dec->width         , dec->height         , avcodec_get_pix_fmt_name(dec->pix_fmt));
1170         if(!ost->video_resample)
1171             ffmpeg_exit(1);
1172     }
1173
1174 #if !CONFIG_AVFILTER
1175     if (ost->video_resample) {
1176         final_picture = &ost->pict_tmp;
1177         if (resample_changed) {
1178             /* initialize a new scaler context */
1179             sws_freeContext(ost->img_resample_ctx);
1180             ost->img_resample_ctx = sws_getContext(
1181                 ist->st->codec->width,
1182                 ist->st->codec->height,
1183                 ist->st->codec->pix_fmt,
1184                 ost->st->codec->width,
1185                 ost->st->codec->height,
1186                 ost->st->codec->pix_fmt,
1187                 ost->sws_flags, NULL, NULL, NULL);
1188             if (ost->img_resample_ctx == NULL) {
1189                 fprintf(stderr, "Cannot get resampling context\n");
1190                 ffmpeg_exit(1);
1191             }
1192         }
1193         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1194               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1195     }
1196 #endif
1197
1198     /* duplicates frame if needed */
1199     for(i=0;i<nb_frames;i++) {
1200         AVPacket pkt;
1201         av_init_packet(&pkt);
1202         pkt.stream_index= ost->index;
1203
1204         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1205             /* raw pictures are written as AVPicture structure to
1206                avoid any copies. We support temorarily the older
1207                method. */
1208             AVFrame* old_frame = enc->coded_frame;
1209             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1210             pkt.data= (uint8_t *)final_picture;
1211             pkt.size=  sizeof(AVPicture);
1212             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1213             pkt.flags |= AV_PKT_FLAG_KEY;
1214
1215             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1216             enc->coded_frame = old_frame;
1217         } else {
1218             AVFrame big_picture;
1219
1220             big_picture= *final_picture;
1221             /* better than nothing: use input picture interlaced
1222                settings */
1223             big_picture.interlaced_frame = in_picture->interlaced_frame;
1224             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1225                 if(top_field_first == -1)
1226                     big_picture.top_field_first = in_picture->top_field_first;
1227                 else
1228                     big_picture.top_field_first = top_field_first;
1229             }
1230
1231             /* handles sameq here. This is not correct because it may
1232                not be a global option */
1233             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1234             if(!me_threshold)
1235                 big_picture.pict_type = 0;
1236 //            big_picture.pts = AV_NOPTS_VALUE;
1237             big_picture.pts= ost->sync_opts;
1238 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1239 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1240             if (ost->forced_kf_index < ost->forced_kf_count &&
1241                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1242                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1243                 ost->forced_kf_index++;
1244             }
1245             ret = avcodec_encode_video(enc,
1246                                        bit_buffer, bit_buffer_size,
1247                                        &big_picture);
1248             if (ret < 0) {
1249                 fprintf(stderr, "Video encoding failed\n");
1250                 ffmpeg_exit(1);
1251             }
1252
1253             if(ret>0){
1254                 pkt.data= bit_buffer;
1255                 pkt.size= ret;
1256                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1257                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1258 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1259    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1260    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1261
1262                 if(enc->coded_frame->key_frame)
1263                     pkt.flags |= AV_PKT_FLAG_KEY;
1264                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1265                 *frame_size = ret;
1266                 video_size += ret;
1267                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1268                 //        enc->frame_number-1, ret, enc->pict_type);
1269                 /* if two pass, output log */
1270                 if (ost->logfile && enc->stats_out) {
1271                     fprintf(ost->logfile, "%s", enc->stats_out);
1272                 }
1273             }
1274         }
1275         ost->sync_opts++;
1276         ost->frame_number++;
1277     }
1278 }
1279
1280 static double psnr(double d){
1281     return -10.0*log(d)/log(10.0);
1282 }
1283
1284 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1285                            int frame_size)
1286 {
1287     AVCodecContext *enc;
1288     int frame_number;
1289     double ti1, bitrate, avg_bitrate;
1290
1291     /* this is executed just the first time do_video_stats is called */
1292     if (!vstats_file) {
1293         vstats_file = fopen(vstats_filename, "w");
1294         if (!vstats_file) {
1295             perror("fopen");
1296             ffmpeg_exit(1);
1297         }
1298     }
1299
1300     enc = ost->st->codec;
1301     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1302         frame_number = ost->frame_number;
1303         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1304         if (enc->flags&CODEC_FLAG_PSNR)
1305             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1306
1307         fprintf(vstats_file,"f_size= %6d ", frame_size);
1308         /* compute pts value */
1309         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1310         if (ti1 < 0.01)
1311             ti1 = 0.01;
1312
1313         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1314         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1315         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1316             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1317         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1318     }
1319 }
1320
1321 static void print_report(AVFormatContext **output_files,
1322                          AVOutputStream **ost_table, int nb_ostreams,
1323                          int is_last_report)
1324 {
1325     char buf[1024];
1326     AVOutputStream *ost;
1327     AVFormatContext *oc;
1328     int64_t total_size;
1329     AVCodecContext *enc;
1330     int frame_number, vid, i;
1331     double bitrate, ti1, pts;
1332     static int64_t last_time = -1;
1333     static int qp_histogram[52];
1334
1335     if (!is_last_report) {
1336         int64_t cur_time;
1337         /* display the report every 0.5 seconds */
1338         cur_time = av_gettime();
1339         if (last_time == -1) {
1340             last_time = cur_time;
1341             return;
1342         }
1343         if ((cur_time - last_time) < 500000)
1344             return;
1345         last_time = cur_time;
1346     }
1347
1348
1349     oc = output_files[0];
1350
1351     total_size = avio_size(oc->pb);
1352     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1353         total_size= avio_tell(oc->pb);
1354
1355     buf[0] = '\0';
1356     ti1 = 1e10;
1357     vid = 0;
1358     for(i=0;i<nb_ostreams;i++) {
1359         float q = -1;
1360         ost = ost_table[i];
1361         enc = ost->st->codec;
1362         if (!ost->st->stream_copy && enc->coded_frame)
1363             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1364         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1365             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1366         }
1367         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1368             float t = (av_gettime()-timer_start) / 1000000.0;
1369
1370             frame_number = ost->frame_number;
1371             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1372                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1373             if(is_last_report)
1374                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1375             if(qp_hist){
1376                 int j;
1377                 int qp = lrintf(q);
1378                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1379                     qp_histogram[qp]++;
1380                 for(j=0; j<32; j++)
1381                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1382             }
1383             if (enc->flags&CODEC_FLAG_PSNR){
1384                 int j;
1385                 double error, error_sum=0;
1386                 double scale, scale_sum=0;
1387                 char type[3]= {'Y','U','V'};
1388                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1389                 for(j=0; j<3; j++){
1390                     if(is_last_report){
1391                         error= enc->error[j];
1392                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1393                     }else{
1394                         error= enc->coded_frame->error[j];
1395                         scale= enc->width*enc->height*255.0*255.0;
1396                     }
1397                     if(j) scale/=4;
1398                     error_sum += error;
1399                     scale_sum += scale;
1400                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1401                 }
1402                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1403             }
1404             vid = 1;
1405         }
1406         /* compute min output value */
1407         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1408         if ((pts < ti1) && (pts > 0))
1409             ti1 = pts;
1410     }
1411     if (ti1 < 0.01)
1412         ti1 = 0.01;
1413
1414     if (verbose > 0 || is_last_report) {
1415         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1416
1417         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1418             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1419             (double)total_size / 1024, ti1, bitrate);
1420
1421         if (nb_frames_dup || nb_frames_drop)
1422           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1423                   nb_frames_dup, nb_frames_drop);
1424
1425         if (verbose >= 0)
1426             fprintf(stderr, "%s    \r", buf);
1427
1428         fflush(stderr);
1429     }
1430
1431     if (is_last_report && verbose >= 0){
1432         int64_t raw= audio_size + video_size + extra_size;
1433         fprintf(stderr, "\n");
1434         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1435                 video_size/1024.0,
1436                 audio_size/1024.0,
1437                 extra_size/1024.0,
1438                 100.0*(total_size - raw)/raw
1439         );
1440     }
1441 }
1442
1443 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1444 {
1445     int fill_char = 0x00;
1446     if (sample_fmt == AV_SAMPLE_FMT_U8)
1447         fill_char = 0x80;
1448     memset(buf, fill_char, size);
1449 }
1450
1451 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1452 static int output_packet(AVInputStream *ist, int ist_index,
1453                          AVOutputStream **ost_table, int nb_ostreams,
1454                          const AVPacket *pkt)
1455 {
1456     AVFormatContext *os;
1457     AVOutputStream *ost;
1458     int ret, i;
1459     int got_output;
1460     AVFrame picture;
1461     void *buffer_to_free = NULL;
1462     static unsigned int samples_size= 0;
1463     AVSubtitle subtitle, *subtitle_to_free;
1464     int64_t pkt_pts = AV_NOPTS_VALUE;
1465 #if CONFIG_AVFILTER
1466     int frame_available;
1467 #endif
1468
1469     AVPacket avpkt;
1470     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1471
1472     if(ist->next_pts == AV_NOPTS_VALUE)
1473         ist->next_pts= ist->pts;
1474
1475     if (pkt == NULL) {
1476         /* EOF handling */
1477         av_init_packet(&avpkt);
1478         avpkt.data = NULL;
1479         avpkt.size = 0;
1480         goto handle_eof;
1481     } else {
1482         avpkt = *pkt;
1483     }
1484
1485     if(pkt->dts != AV_NOPTS_VALUE)
1486         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1487     if(pkt->pts != AV_NOPTS_VALUE)
1488         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1489
1490     //while we have more to decode or while the decoder did output something on EOF
1491     while (avpkt.size > 0 || (!pkt && got_output)) {
1492         uint8_t *data_buf, *decoded_data_buf;
1493         int data_size, decoded_data_size;
1494     handle_eof:
1495         ist->pts= ist->next_pts;
1496
1497         if(avpkt.size && avpkt.size != pkt->size &&
1498            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1499             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1500             ist->showed_multi_packet_warning=1;
1501         }
1502
1503         /* decode the packet if needed */
1504         decoded_data_buf = NULL; /* fail safe */
1505         decoded_data_size= 0;
1506         data_buf  = avpkt.data;
1507         data_size = avpkt.size;
1508         subtitle_to_free = NULL;
1509         if (ist->decoding_needed) {
1510             switch(ist->st->codec->codec_type) {
1511             case AVMEDIA_TYPE_AUDIO:{
1512                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1513                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1514                     av_free(samples);
1515                     samples= av_malloc(samples_size);
1516                 }
1517                 decoded_data_size= samples_size;
1518                     /* XXX: could avoid copy if PCM 16 bits with same
1519                        endianness as CPU */
1520                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1521                                             &avpkt);
1522                 if (ret < 0)
1523                     goto fail_decode;
1524                 avpkt.data += ret;
1525                 avpkt.size -= ret;
1526                 data_size   = ret;
1527                 got_output  = decoded_data_size > 0;
1528                 /* Some bug in mpeg audio decoder gives */
1529                 /* decoded_data_size < 0, it seems they are overflows */
1530                 if (!got_output) {
1531                     /* no audio frame */
1532                     continue;
1533                 }
1534                 decoded_data_buf = (uint8_t *)samples;
1535                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1536                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1537                 break;}
1538             case AVMEDIA_TYPE_VIDEO:
1539                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1540                     /* XXX: allocate picture correctly */
1541                     avcodec_get_frame_defaults(&picture);
1542                     avpkt.pts = pkt_pts;
1543                     avpkt.dts = ist->pts;
1544                     pkt_pts = AV_NOPTS_VALUE;
1545
1546                     ret = avcodec_decode_video2(ist->st->codec,
1547                                                 &picture, &got_output, &avpkt);
1548                     ist->st->quality= picture.quality;
1549                     if (ret < 0)
1550                         goto fail_decode;
1551                     if (!got_output) {
1552                         /* no picture yet */
1553                         goto discard_packet;
1554                     }
1555                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1556                     if (ist->st->codec->time_base.num != 0) {
1557                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1558                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1559                                           ist->st->codec->time_base.num * ticks) /
1560                             ist->st->codec->time_base.den;
1561                     }
1562                     avpkt.size = 0;
1563                     buffer_to_free = NULL;
1564                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1565                     break;
1566             case AVMEDIA_TYPE_SUBTITLE:
1567                 ret = avcodec_decode_subtitle2(ist->st->codec,
1568                                                &subtitle, &got_output, &avpkt);
1569                 if (ret < 0)
1570                     goto fail_decode;
1571                 if (!got_output) {
1572                     goto discard_packet;
1573                 }
1574                 subtitle_to_free = &subtitle;
1575                 avpkt.size = 0;
1576                 break;
1577             default:
1578                 goto fail_decode;
1579             }
1580         } else {
1581             switch(ist->st->codec->codec_type) {
1582             case AVMEDIA_TYPE_AUDIO:
1583                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1584                     ist->st->codec->sample_rate;
1585                 break;
1586             case AVMEDIA_TYPE_VIDEO:
1587                 if (ist->st->codec->time_base.num != 0) {
1588                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1589                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1590                                       ist->st->codec->time_base.num * ticks) /
1591                         ist->st->codec->time_base.den;
1592                 }
1593                 break;
1594             }
1595             ret = avpkt.size;
1596             avpkt.size = 0;
1597         }
1598
1599 #if CONFIG_AVFILTER
1600         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1601             for (i = 0; i < nb_ostreams; i++) {
1602                 ost = ost_table[i];
1603                 if (ost->input_video_filter && ost->source_index == ist_index) {
1604                     AVRational sar;
1605                     if (ist->st->sample_aspect_ratio.num)
1606                         sar = ist->st->sample_aspect_ratio;
1607                     else
1608                         sar = ist->st->codec->sample_aspect_ratio;
1609                     // add it to be filtered
1610                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1611                                              ist->pts,
1612                                              sar);
1613                 }
1614             }
1615         }
1616 #endif
1617
1618         // preprocess audio (volume)
1619         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1620             if (audio_volume != 256) {
1621                 short *volp;
1622                 volp = samples;
1623                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1624                     int v = ((*volp) * audio_volume + 128) >> 8;
1625                     if (v < -32768) v = -32768;
1626                     if (v >  32767) v = 32767;
1627                     *volp++ = v;
1628                 }
1629             }
1630         }
1631
1632         /* frame rate emulation */
1633         if (rate_emu) {
1634             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1635             int64_t now = av_gettime() - ist->start;
1636             if (pts > now)
1637                 usleep(pts - now);
1638         }
1639         /* if output time reached then transcode raw format,
1640            encode packets and output them */
1641         if (start_time == 0 || ist->pts >= start_time)
1642             for(i=0;i<nb_ostreams;i++) {
1643                 int frame_size;
1644
1645                 ost = ost_table[i];
1646                 if (ost->source_index == ist_index) {
1647 #if CONFIG_AVFILTER
1648                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1649                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1650                 while (frame_available) {
1651                     AVRational ist_pts_tb;
1652                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1653                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1654                     if (ost->picref)
1655                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1656 #endif
1657                     os = output_files[ost->file_index];
1658
1659                     /* set the input output pts pairs */
1660                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1661
1662                     if (ost->encoding_needed) {
1663                         av_assert0(ist->decoding_needed);
1664                         switch(ost->st->codec->codec_type) {
1665                         case AVMEDIA_TYPE_AUDIO:
1666                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1667                             break;
1668                         case AVMEDIA_TYPE_VIDEO:
1669 #if CONFIG_AVFILTER
1670                             if (ost->picref->video && !ost->frame_aspect_ratio)
1671                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1672 #endif
1673                             do_video_out(os, ost, ist, &picture, &frame_size);
1674                             if (vstats_filename && frame_size)
1675                                 do_video_stats(os, ost, frame_size);
1676                             break;
1677                         case AVMEDIA_TYPE_SUBTITLE:
1678                             do_subtitle_out(os, ost, ist, &subtitle,
1679                                             pkt->pts);
1680                             break;
1681                         default:
1682                             abort();
1683                         }
1684                     } else {
1685                         AVFrame avframe; //FIXME/XXX remove this
1686                         AVPacket opkt;
1687                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1688
1689                         av_init_packet(&opkt);
1690
1691                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1692 #if !CONFIG_AVFILTER
1693                             continue;
1694 #else
1695                             goto cont;
1696 #endif
1697
1698                         /* no reencoding needed : output the packet directly */
1699                         /* force the input stream PTS */
1700
1701                         avcodec_get_frame_defaults(&avframe);
1702                         ost->st->codec->coded_frame= &avframe;
1703                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1704
1705                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1706                             audio_size += data_size;
1707                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1708                             video_size += data_size;
1709                             ost->sync_opts++;
1710                         }
1711
1712                         opkt.stream_index= ost->index;
1713                         if(pkt->pts != AV_NOPTS_VALUE)
1714                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1715                         else
1716                             opkt.pts= AV_NOPTS_VALUE;
1717
1718                         if (pkt->dts == AV_NOPTS_VALUE)
1719                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1720                         else
1721                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1722                         opkt.dts -= ost_tb_start_time;
1723
1724                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1725                         opkt.flags= pkt->flags;
1726
1727                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1728                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1729                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1730                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1731                            ) {
1732                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1733                                 opkt.destruct= av_destruct_packet;
1734                         } else {
1735                             opkt.data = data_buf;
1736                             opkt.size = data_size;
1737                         }
1738
1739                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1740                         ost->st->codec->frame_number++;
1741                         ost->frame_number++;
1742                         av_free_packet(&opkt);
1743                     }
1744 #if CONFIG_AVFILTER
1745                     cont:
1746                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1747                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1748                     if (ost->picref)
1749                         avfilter_unref_buffer(ost->picref);
1750                 }
1751 #endif
1752                 }
1753             }
1754
1755         av_free(buffer_to_free);
1756         /* XXX: allocate the subtitles in the codec ? */
1757         if (subtitle_to_free) {
1758             avsubtitle_free(subtitle_to_free);
1759             subtitle_to_free = NULL;
1760         }
1761     }
1762  discard_packet:
1763     if (pkt == NULL) {
1764         /* EOF handling */
1765
1766         for(i=0;i<nb_ostreams;i++) {
1767             ost = ost_table[i];
1768             if (ost->source_index == ist_index) {
1769                 AVCodecContext *enc= ost->st->codec;
1770                 os = output_files[ost->file_index];
1771
1772                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1773                     continue;
1774                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1775                     continue;
1776
1777                 if (ost->encoding_needed) {
1778                     for(;;) {
1779                         AVPacket pkt;
1780                         int fifo_bytes;
1781                         av_init_packet(&pkt);
1782                         pkt.stream_index= ost->index;
1783
1784                         switch(ost->st->codec->codec_type) {
1785                         case AVMEDIA_TYPE_AUDIO:
1786                             fifo_bytes = av_fifo_size(ost->fifo);
1787                             ret = 0;
1788                             /* encode any samples remaining in fifo */
1789                             if (fifo_bytes > 0) {
1790                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1791                                 int fs_tmp = enc->frame_size;
1792
1793                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1794                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1795                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1796                                 } else { /* pad */
1797                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1798                                     if (allocated_audio_buf_size < frame_bytes)
1799                                         ffmpeg_exit(1);
1800                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1801                                 }
1802
1803                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1804                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1805                                                           ost->st->time_base.num, enc->sample_rate);
1806                                 enc->frame_size = fs_tmp;
1807                             }
1808                             if(ret <= 0) {
1809                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1810                             }
1811                             if (ret < 0) {
1812                                 fprintf(stderr, "Audio encoding failed\n");
1813                                 ffmpeg_exit(1);
1814                             }
1815                             audio_size += ret;
1816                             pkt.flags |= AV_PKT_FLAG_KEY;
1817                             break;
1818                         case AVMEDIA_TYPE_VIDEO:
1819                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1820                             if (ret < 0) {
1821                                 fprintf(stderr, "Video encoding failed\n");
1822                                 ffmpeg_exit(1);
1823                             }
1824                             video_size += ret;
1825                             if(enc->coded_frame && enc->coded_frame->key_frame)
1826                                 pkt.flags |= AV_PKT_FLAG_KEY;
1827                             if (ost->logfile && enc->stats_out) {
1828                                 fprintf(ost->logfile, "%s", enc->stats_out);
1829                             }
1830                             break;
1831                         default:
1832                             ret=-1;
1833                         }
1834
1835                         if(ret<=0)
1836                             break;
1837                         pkt.data= bit_buffer;
1838                         pkt.size= ret;
1839                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1840                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1841                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1842                     }
1843                 }
1844             }
1845         }
1846     }
1847
1848     return 0;
1849  fail_decode:
1850     return -1;
1851 }
1852
1853 static void print_sdp(AVFormatContext **avc, int n)
1854 {
1855     char sdp[2048];
1856
1857     av_sdp_create(avc, n, sdp, sizeof(sdp));
1858     printf("SDP:\n%s\n", sdp);
1859     fflush(stdout);
1860 }
1861
1862 static int copy_chapters(int infile, int outfile)
1863 {
1864     AVFormatContext *is = input_files[infile];
1865     AVFormatContext *os = output_files[outfile];
1866     int i;
1867
1868     for (i = 0; i < is->nb_chapters; i++) {
1869         AVChapter *in_ch = is->chapters[i], *out_ch;
1870         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1871                                       AV_TIME_BASE_Q, in_ch->time_base);
1872         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1873                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1874
1875
1876         if (in_ch->end < ts_off)
1877             continue;
1878         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1879             break;
1880
1881         out_ch = av_mallocz(sizeof(AVChapter));
1882         if (!out_ch)
1883             return AVERROR(ENOMEM);
1884
1885         out_ch->id        = in_ch->id;
1886         out_ch->time_base = in_ch->time_base;
1887         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1888         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1889
1890         if (metadata_chapters_autocopy)
1891             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1892
1893         os->nb_chapters++;
1894         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1895         if (!os->chapters)
1896             return AVERROR(ENOMEM);
1897         os->chapters[os->nb_chapters - 1] = out_ch;
1898     }
1899     return 0;
1900 }
1901
1902 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1903                                     AVCodecContext *avctx)
1904 {
1905     char *p;
1906     int n = 1, i;
1907     int64_t t;
1908
1909     for (p = kf; *p; p++)
1910         if (*p == ',')
1911             n++;
1912     ost->forced_kf_count = n;
1913     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1914     if (!ost->forced_kf_pts) {
1915         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1916         ffmpeg_exit(1);
1917     }
1918     for (i = 0; i < n; i++) {
1919         p = i ? strchr(p, ',') + 1 : kf;
1920         t = parse_time_or_die("force_key_frames", p, 1);
1921         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1922     }
1923 }
1924
1925 /*
1926  * The following code is the main loop of the file converter
1927  */
1928 static int transcode(AVFormatContext **output_files,
1929                      int nb_output_files,
1930                      AVFormatContext **input_files,
1931                      int nb_input_files,
1932                      AVStreamMap *stream_maps, int nb_stream_maps)
1933 {
1934     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1935     AVFormatContext *is, *os;
1936     AVCodecContext *codec, *icodec;
1937     AVOutputStream *ost, **ost_table = NULL;
1938     AVInputStream *ist, **ist_table = NULL;
1939     AVInputFile *file_table;
1940     char error[1024];
1941     int want_sdp = 1;
1942     uint8_t no_packet[MAX_FILES]={0};
1943     int no_packet_count=0;
1944
1945     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1946     if (!file_table)
1947         goto fail;
1948
1949     /* input stream init */
1950     j = 0;
1951     for(i=0;i<nb_input_files;i++) {
1952         is = input_files[i];
1953         file_table[i].ist_index = j;
1954         file_table[i].nb_streams = is->nb_streams;
1955         j += is->nb_streams;
1956     }
1957     nb_istreams = j;
1958
1959     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1960     if (!ist_table)
1961         goto fail;
1962
1963     for(i=0;i<nb_istreams;i++) {
1964         ist = av_mallocz(sizeof(AVInputStream));
1965         if (!ist)
1966             goto fail;
1967         ist_table[i] = ist;
1968     }
1969     j = 0;
1970     for(i=0;i<nb_input_files;i++) {
1971         is = input_files[i];
1972         for(k=0;k<is->nb_streams;k++) {
1973             ist = ist_table[j++];
1974             ist->st = is->streams[k];
1975             ist->file_index = i;
1976             ist->index = k;
1977             ist->discard = 1; /* the stream is discarded by default
1978                                  (changed later) */
1979
1980             if (rate_emu) {
1981                 ist->start = av_gettime();
1982             }
1983         }
1984     }
1985
1986     /* output stream init */
1987     nb_ostreams = 0;
1988     for(i=0;i<nb_output_files;i++) {
1989         os = output_files[i];
1990         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1991             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1992             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1993             ret = AVERROR(EINVAL);
1994             goto fail;
1995         }
1996         nb_ostreams += os->nb_streams;
1997     }
1998     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1999         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2000         ret = AVERROR(EINVAL);
2001         goto fail;
2002     }
2003
2004     /* Sanity check the mapping args -- do the input files & streams exist? */
2005     for(i=0;i<nb_stream_maps;i++) {
2006         int fi = stream_maps[i].file_index;
2007         int si = stream_maps[i].stream_index;
2008
2009         if (fi < 0 || fi > nb_input_files - 1 ||
2010             si < 0 || si > file_table[fi].nb_streams - 1) {
2011             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2012             ret = AVERROR(EINVAL);
2013             goto fail;
2014         }
2015         fi = stream_maps[i].sync_file_index;
2016         si = stream_maps[i].sync_stream_index;
2017         if (fi < 0 || fi > nb_input_files - 1 ||
2018             si < 0 || si > file_table[fi].nb_streams - 1) {
2019             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2020             ret = AVERROR(EINVAL);
2021             goto fail;
2022         }
2023     }
2024
2025     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2026     if (!ost_table)
2027         goto fail;
2028     n = 0;
2029     for(k=0;k<nb_output_files;k++) {
2030         os = output_files[k];
2031         for(i=0;i<os->nb_streams;i++,n++) {
2032             int found;
2033             ost = ost_table[n] = output_streams_for_file[k][i];
2034             ost->st = os->streams[i];
2035             if (nb_stream_maps > 0) {
2036                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2037                     stream_maps[n].stream_index;
2038
2039                 /* Sanity check that the stream types match */
2040                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2041                     int i= ost->file_index;
2042                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2043                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2044                         stream_maps[n].file_index, stream_maps[n].stream_index,
2045                         ost->file_index, ost->index);
2046                     ffmpeg_exit(1);
2047                 }
2048
2049             } else {
2050                 int best_nb_frames=-1;
2051                 /* get corresponding input stream index : we select the first one with the right type */
2052                 found = 0;
2053                 for(j=0;j<nb_istreams;j++) {
2054                     int skip=0;
2055                     ist = ist_table[j];
2056                     if(opt_programid){
2057                         int pi,si;
2058                         AVFormatContext *f= input_files[ ist->file_index ];
2059                         skip=1;
2060                         for(pi=0; pi<f->nb_programs; pi++){
2061                             AVProgram *p= f->programs[pi];
2062                             if(p->id == opt_programid)
2063                                 for(si=0; si<p->nb_stream_indexes; si++){
2064                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2065                                         skip=0;
2066                                 }
2067                         }
2068                     }
2069                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2070                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2071                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2072                             best_nb_frames= ist->st->codec_info_nb_frames;
2073                             ost->source_index = j;
2074                             found = 1;
2075                         }
2076                     }
2077                 }
2078
2079                 if (!found) {
2080                     if(! opt_programid) {
2081                         /* try again and reuse existing stream */
2082                         for(j=0;j<nb_istreams;j++) {
2083                             ist = ist_table[j];
2084                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2085                                 && ist->st->discard != AVDISCARD_ALL) {
2086                                 ost->source_index = j;
2087                                 found = 1;
2088                             }
2089                         }
2090                     }
2091                     if (!found) {
2092                         int i= ost->file_index;
2093                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2094                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2095                                 ost->file_index, ost->index);
2096                         ffmpeg_exit(1);
2097                     }
2098                 }
2099             }
2100             ist = ist_table[ost->source_index];
2101             ist->discard = 0;
2102             ost->sync_ist = (nb_stream_maps > 0) ?
2103                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2104                          stream_maps[n].sync_stream_index] : ist;
2105         }
2106     }
2107
2108     /* for each output stream, we compute the right encoding parameters */
2109     for(i=0;i<nb_ostreams;i++) {
2110         ost = ost_table[i];
2111         os = output_files[ost->file_index];
2112         ist = ist_table[ost->source_index];
2113
2114         codec = ost->st->codec;
2115         icodec = ist->st->codec;
2116
2117         if (metadata_streams_autocopy)
2118             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2119                              AV_METADATA_DONT_OVERWRITE);
2120
2121         ost->st->disposition = ist->st->disposition;
2122         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2123         codec->chroma_sample_location = icodec->chroma_sample_location;
2124
2125         if (ost->st->stream_copy) {
2126             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2127
2128             if (extra_size > INT_MAX)
2129                 goto fail;
2130
2131             /* if stream_copy is selected, no need to decode or encode */
2132             codec->codec_id = icodec->codec_id;
2133             codec->codec_type = icodec->codec_type;
2134
2135             if(!codec->codec_tag){
2136                 if(   !os->oformat->codec_tag
2137                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2138                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2139                     codec->codec_tag = icodec->codec_tag;
2140             }
2141
2142             codec->bit_rate = icodec->bit_rate;
2143             codec->rc_max_rate    = icodec->rc_max_rate;
2144             codec->rc_buffer_size = icodec->rc_buffer_size;
2145             codec->extradata= av_mallocz(extra_size);
2146             if (!codec->extradata)
2147                 goto fail;
2148             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2149             codec->extradata_size= icodec->extradata_size;
2150             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){
2151                 codec->time_base = icodec->time_base;
2152                 codec->time_base.num *= icodec->ticks_per_frame;
2153                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2154                           codec->time_base.num, codec->time_base.den, INT_MAX);
2155             }else
2156                 codec->time_base = ist->st->time_base;
2157             switch(codec->codec_type) {
2158             case AVMEDIA_TYPE_AUDIO:
2159                 if(audio_volume != 256) {
2160                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2161                     ffmpeg_exit(1);
2162                 }
2163                 codec->channel_layout = icodec->channel_layout;
2164                 codec->sample_rate = icodec->sample_rate;
2165                 codec->channels = icodec->channels;
2166                 codec->frame_size = icodec->frame_size;
2167                 codec->audio_service_type = icodec->audio_service_type;
2168                 codec->block_align= icodec->block_align;
2169                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2170                     codec->block_align= 0;
2171                 if(codec->codec_id == CODEC_ID_AC3)
2172                     codec->block_align= 0;
2173                 break;
2174             case AVMEDIA_TYPE_VIDEO:
2175                 codec->pix_fmt = icodec->pix_fmt;
2176                 codec->width = icodec->width;
2177                 codec->height = icodec->height;
2178                 codec->has_b_frames = icodec->has_b_frames;
2179                 if (!codec->sample_aspect_ratio.num) {
2180                     codec->sample_aspect_ratio =
2181                     ost->st->sample_aspect_ratio =
2182                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2183                         ist->st->codec->sample_aspect_ratio.num ?
2184                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2185                 }
2186                 break;
2187             case AVMEDIA_TYPE_SUBTITLE:
2188                 codec->width = icodec->width;
2189                 codec->height = icodec->height;
2190                 break;
2191             case AVMEDIA_TYPE_DATA:
2192                 break;
2193             default:
2194                 abort();
2195             }
2196         } else {
2197             switch(codec->codec_type) {
2198             case AVMEDIA_TYPE_AUDIO:
2199                 ost->fifo= av_fifo_alloc(1024);
2200                 if(!ost->fifo)
2201                     goto fail;
2202                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2203                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2204                 icodec->request_channels = codec->channels;
2205                 ist->decoding_needed = 1;
2206                 ost->encoding_needed = 1;
2207                 ost->resample_sample_fmt  = icodec->sample_fmt;
2208                 ost->resample_sample_rate = icodec->sample_rate;
2209                 ost->resample_channels    = icodec->channels;
2210                 break;
2211             case AVMEDIA_TYPE_VIDEO:
2212                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2213                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2214                     ffmpeg_exit(1);
2215                 }
2216                 ost->video_resample = codec->width   != icodec->width  ||
2217                                       codec->height  != icodec->height ||
2218                                       codec->pix_fmt != icodec->pix_fmt;
2219                 if (ost->video_resample) {
2220 #if !CONFIG_AVFILTER
2221                     avcodec_get_frame_defaults(&ost->pict_tmp);
2222                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2223                                          codec->width, codec->height)) {
2224                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2225                         ffmpeg_exit(1);
2226                     }
2227                     ost->img_resample_ctx = sws_getContext(
2228                         icodec->width,
2229                         icodec->height,
2230                             icodec->pix_fmt,
2231                             codec->width,
2232                             codec->height,
2233                             codec->pix_fmt,
2234                             ost->sws_flags, NULL, NULL, NULL);
2235                     if (ost->img_resample_ctx == NULL) {
2236                         fprintf(stderr, "Cannot get resampling context\n");
2237                         ffmpeg_exit(1);
2238                     }
2239 #endif
2240                     codec->bits_per_raw_sample= 0;
2241                 }
2242                 ost->resample_height = icodec->height;
2243                 ost->resample_width  = icodec->width;
2244                 ost->resample_pix_fmt= icodec->pix_fmt;
2245                 ost->encoding_needed = 1;
2246                 ist->decoding_needed = 1;
2247
2248 #if CONFIG_AVFILTER
2249                 if (configure_video_filters(ist, ost)) {
2250                     fprintf(stderr, "Error opening filters!\n");
2251                     exit(1);
2252                 }
2253 #endif
2254                 break;
2255             case AVMEDIA_TYPE_SUBTITLE:
2256                 ost->encoding_needed = 1;
2257                 ist->decoding_needed = 1;
2258                 break;
2259             default:
2260                 abort();
2261                 break;
2262             }
2263             /* two pass mode */
2264             if (ost->encoding_needed &&
2265                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2266                 char logfilename[1024];
2267                 FILE *f;
2268
2269                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2270                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2271                          i);
2272                 if (codec->flags & CODEC_FLAG_PASS1) {
2273                     f = fopen(logfilename, "wb");
2274                     if (!f) {
2275                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2276                         ffmpeg_exit(1);
2277                     }
2278                     ost->logfile = f;
2279                 } else {
2280                     char  *logbuffer;
2281                     size_t logbuffer_size;
2282                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2283                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2284                         ffmpeg_exit(1);
2285                     }
2286                     codec->stats_in = logbuffer;
2287                 }
2288             }
2289         }
2290         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2291             int size= codec->width * codec->height;
2292             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2293         }
2294     }
2295
2296     if (!bit_buffer)
2297         bit_buffer = av_malloc(bit_buffer_size);
2298     if (!bit_buffer) {
2299         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2300                 bit_buffer_size);
2301         ret = AVERROR(ENOMEM);
2302         goto fail;
2303     }
2304
2305     /* open each encoder */
2306     for(i=0;i<nb_ostreams;i++) {
2307         ost = ost_table[i];
2308         if (ost->encoding_needed) {
2309             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2310             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2311             if (!codec)
2312                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2313             if (!codec) {
2314                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2315                          ost->st->codec->codec_id, ost->file_index, ost->index);
2316                 ret = AVERROR(EINVAL);
2317                 goto dump_format;
2318             }
2319             if (dec->subtitle_header) {
2320                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2321                 if (!ost->st->codec->subtitle_header) {
2322                     ret = AVERROR(ENOMEM);
2323                     goto dump_format;
2324                 }
2325                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2326                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2327             }
2328             if (avcodec_open(ost->st->codec, codec) < 0) {
2329                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2330                         ost->file_index, ost->index);
2331                 ret = AVERROR(EINVAL);
2332                 goto dump_format;
2333             }
2334             extra_size += ost->st->codec->extradata_size;
2335         }
2336     }
2337
2338     /* open each decoder */
2339     for(i=0;i<nb_istreams;i++) {
2340         ist = ist_table[i];
2341         if (ist->decoding_needed) {
2342             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2343             if (!codec)
2344                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2345             if (!codec) {
2346                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2347                         ist->st->codec->codec_id, ist->file_index, ist->index);
2348                 ret = AVERROR(EINVAL);
2349                 goto dump_format;
2350             }
2351
2352             /* update requested sample format for the decoder based on the
2353                corresponding encoder sample format */
2354             for (j = 0; j < nb_ostreams; j++) {
2355                 ost = ost_table[j];
2356                 if (ost->source_index == i) {
2357                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2358                     break;
2359                 }
2360             }
2361
2362             if (avcodec_open(ist->st->codec, codec) < 0) {
2363                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2364                         ist->file_index, ist->index);
2365                 ret = AVERROR(EINVAL);
2366                 goto dump_format;
2367             }
2368             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2369             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2370         }
2371     }
2372
2373     /* init pts */
2374     for(i=0;i<nb_istreams;i++) {
2375         AVStream *st;
2376         ist = ist_table[i];
2377         st= ist->st;
2378         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2379         ist->next_pts = AV_NOPTS_VALUE;
2380         init_pts_correction(&ist->pts_ctx);
2381         ist->is_start = 1;
2382     }
2383
2384     /* set meta data information from input file if required */
2385     for (i=0;i<nb_meta_data_maps;i++) {
2386         AVFormatContext *files[2];
2387         AVMetadata      **meta[2];
2388         int j;
2389
2390 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2391         if ((index) < 0 || (index) >= (nb_elems)) {\
2392             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2393                      (desc), (index));\
2394             ret = AVERROR(EINVAL);\
2395             goto dump_format;\
2396         }
2397
2398         int out_file_index = meta_data_maps[i][0].file;
2399         int in_file_index = meta_data_maps[i][1].file;
2400         if (in_file_index < 0 || out_file_index < 0)
2401             continue;
2402         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2403         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2404
2405         files[0] = output_files[out_file_index];
2406         files[1] = input_files[in_file_index];
2407
2408         for (j = 0; j < 2; j++) {
2409             AVMetaDataMap *map = &meta_data_maps[i][j];
2410
2411             switch (map->type) {
2412             case 'g':
2413                 meta[j] = &files[j]->metadata;
2414                 break;
2415             case 's':
2416                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2417                 meta[j] = &files[j]->streams[map->index]->metadata;
2418                 break;
2419             case 'c':
2420                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2421                 meta[j] = &files[j]->chapters[map->index]->metadata;
2422                 break;
2423             case 'p':
2424                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2425                 meta[j] = &files[j]->programs[map->index]->metadata;
2426                 break;
2427             }
2428         }
2429
2430         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2431     }
2432
2433     /* copy global metadata by default */
2434     if (metadata_global_autocopy) {
2435
2436         for (i = 0; i < nb_output_files; i++)
2437             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2438                              AV_METADATA_DONT_OVERWRITE);
2439     }
2440
2441     /* copy chapters according to chapter maps */
2442     for (i = 0; i < nb_chapter_maps; i++) {
2443         int infile  = chapter_maps[i].in_file;
2444         int outfile = chapter_maps[i].out_file;
2445
2446         if (infile < 0 || outfile < 0)
2447             continue;
2448         if (infile >= nb_input_files) {
2449             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2450             ret = AVERROR(EINVAL);
2451             goto dump_format;
2452         }
2453         if (outfile >= nb_output_files) {
2454             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2455             ret = AVERROR(EINVAL);
2456             goto dump_format;
2457         }
2458         copy_chapters(infile, outfile);
2459     }
2460
2461     /* copy chapters from the first input file that has them*/
2462     if (!nb_chapter_maps)
2463         for (i = 0; i < nb_input_files; i++) {
2464             if (!input_files[i]->nb_chapters)
2465                 continue;
2466
2467             for (j = 0; j < nb_output_files; j++)
2468                 if ((ret = copy_chapters(i, j)) < 0)
2469                     goto dump_format;
2470             break;
2471         }
2472
2473     /* open files and write file headers */
2474     for(i=0;i<nb_output_files;i++) {
2475         os = output_files[i];
2476         if (av_write_header(os) < 0) {
2477             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2478             ret = AVERROR(EINVAL);
2479             goto dump_format;
2480         }
2481         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2482             want_sdp = 0;
2483         }
2484     }
2485
2486  dump_format:
2487     /* dump the file output parameters - cannot be done before in case
2488        of stream copy */
2489     for(i=0;i<nb_output_files;i++) {
2490         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2491     }
2492
2493     /* dump the stream mapping */
2494     if (verbose >= 0) {
2495         fprintf(stderr, "Stream mapping:\n");
2496         for(i=0;i<nb_ostreams;i++) {
2497             ost = ost_table[i];
2498             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2499                     ist_table[ost->source_index]->file_index,
2500                     ist_table[ost->source_index]->index,
2501                     ost->file_index,
2502                     ost->index);
2503             if (ost->sync_ist != ist_table[ost->source_index])
2504                 fprintf(stderr, " [sync #%d.%d]",
2505                         ost->sync_ist->file_index,
2506                         ost->sync_ist->index);
2507             fprintf(stderr, "\n");
2508         }
2509     }
2510
2511     if (ret) {
2512         fprintf(stderr, "%s\n", error);
2513         goto fail;
2514     }
2515
2516     if (want_sdp) {
2517         print_sdp(output_files, nb_output_files);
2518     }
2519
2520     if (verbose >= 0)
2521         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2522     term_init();
2523
2524     timer_start = av_gettime();
2525
2526     for(; received_sigterm == 0;) {
2527         int file_index, ist_index;
2528         AVPacket pkt;
2529         double ipts_min;
2530         double opts_min;
2531
2532     redo:
2533         ipts_min= 1e100;
2534         opts_min= 1e100;
2535
2536         /* select the stream that we must read now by looking at the
2537            smallest output pts */
2538         file_index = -1;
2539         for(i=0;i<nb_ostreams;i++) {
2540             double ipts, opts;
2541             ost = ost_table[i];
2542             os = output_files[ost->file_index];
2543             ist = ist_table[ost->source_index];
2544             if(ist->is_past_recording_time || no_packet[ist->file_index])
2545                 continue;
2546                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2547             ipts = (double)ist->pts;
2548             if (!file_table[ist->file_index].eof_reached){
2549                 if(ipts < ipts_min) {
2550                     ipts_min = ipts;
2551                     if(input_sync ) file_index = ist->file_index;
2552                 }
2553                 if(opts < opts_min) {
2554                     opts_min = opts;
2555                     if(!input_sync) file_index = ist->file_index;
2556                 }
2557             }
2558             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2559                 file_index= -1;
2560                 break;
2561             }
2562         }
2563         /* if none, if is finished */
2564         if (file_index < 0) {
2565             if(no_packet_count){
2566                 no_packet_count=0;
2567                 memset(no_packet, 0, sizeof(no_packet));
2568                 usleep(10000);
2569                 continue;
2570             }
2571             break;
2572         }
2573
2574         /* finish if limit size exhausted */
2575         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2576             break;
2577
2578         /* read a frame from it and output it in the fifo */
2579         is = input_files[file_index];
2580         ret= av_read_frame(is, &pkt);
2581         if(ret == AVERROR(EAGAIN)){
2582             no_packet[file_index]=1;
2583             no_packet_count++;
2584             continue;
2585         }
2586         if (ret < 0) {
2587             file_table[file_index].eof_reached = 1;
2588             if (opt_shortest)
2589                 break;
2590             else
2591                 continue;
2592         }
2593
2594         no_packet_count=0;
2595         memset(no_packet, 0, sizeof(no_packet));
2596
2597         if (do_pkt_dump) {
2598             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2599                              is->streams[pkt.stream_index]);
2600         }
2601         /* the following test is needed in case new streams appear
2602            dynamically in stream : we ignore them */
2603         if (pkt.stream_index >= file_table[file_index].nb_streams)
2604             goto discard_packet;
2605         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2606         ist = ist_table[ist_index];
2607         if (ist->discard)
2608             goto discard_packet;
2609
2610         if (pkt.dts != AV_NOPTS_VALUE)
2611             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2612         if (pkt.pts != AV_NOPTS_VALUE)
2613             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2614
2615         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2616             && input_files_ts_scale[file_index][pkt.stream_index]){
2617             if(pkt.pts != AV_NOPTS_VALUE)
2618                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2619             if(pkt.dts != AV_NOPTS_VALUE)
2620                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2621         }
2622
2623 //        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);
2624         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2625             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2626             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2627             int64_t delta= pkt_dts - ist->next_pts;
2628             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2629                 input_files_ts_offset[ist->file_index]-= delta;
2630                 if (verbose > 2)
2631                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2632                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2633                 if(pkt.pts != AV_NOPTS_VALUE)
2634                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2635             }
2636         }
2637
2638         /* finish if recording time exhausted */
2639         if (recording_time != INT64_MAX &&
2640             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2641             ist->is_past_recording_time = 1;
2642             goto discard_packet;
2643         }
2644
2645         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2646         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2647
2648             if (verbose >= 0)
2649                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2650                         ist->file_index, ist->index);
2651             if (exit_on_error)
2652                 ffmpeg_exit(1);
2653             av_free_packet(&pkt);
2654             goto redo;
2655         }
2656
2657     discard_packet:
2658         av_free_packet(&pkt);
2659
2660         /* dump report by using the output first video and audio streams */
2661         print_report(output_files, ost_table, nb_ostreams, 0);
2662     }
2663
2664     /* at the end of stream, we must flush the decoder buffers */
2665     for(i=0;i<nb_istreams;i++) {
2666         ist = ist_table[i];
2667         if (ist->decoding_needed) {
2668             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2669         }
2670     }
2671
2672     term_exit();
2673
2674     /* write the trailer if needed and close file */
2675     for(i=0;i<nb_output_files;i++) {
2676         os = output_files[i];
2677         av_write_trailer(os);
2678     }
2679
2680     /* dump report by using the first video and audio streams */
2681     print_report(output_files, ost_table, nb_ostreams, 1);
2682
2683     /* close each encoder */
2684     for(i=0;i<nb_ostreams;i++) {
2685         ost = ost_table[i];
2686         if (ost->encoding_needed) {
2687             av_freep(&ost->st->codec->stats_in);
2688             avcodec_close(ost->st->codec);
2689         }
2690 #if CONFIG_AVFILTER
2691         avfilter_graph_free(&ost->graph);
2692 #endif
2693     }
2694
2695     /* close each decoder */
2696     for(i=0;i<nb_istreams;i++) {
2697         ist = ist_table[i];
2698         if (ist->decoding_needed) {
2699             avcodec_close(ist->st->codec);
2700         }
2701     }
2702
2703     /* finished ! */
2704     ret = 0;
2705
2706  fail:
2707     av_freep(&bit_buffer);
2708     av_free(file_table);
2709
2710     if (ist_table) {
2711         for(i=0;i<nb_istreams;i++) {
2712             ist = ist_table[i];
2713             av_free(ist);
2714         }
2715         av_free(ist_table);
2716     }
2717     if (ost_table) {
2718         for(i=0;i<nb_ostreams;i++) {
2719             ost = ost_table[i];
2720             if (ost) {
2721                 if (ost->st->stream_copy)
2722                     av_freep(&ost->st->codec->extradata);
2723                 if (ost->logfile) {
2724                     fclose(ost->logfile);
2725                     ost->logfile = NULL;
2726                 }
2727                 av_fifo_free(ost->fifo); /* works even if fifo is not
2728                                              initialized but set to zero */
2729                 av_freep(&ost->st->codec->subtitle_header);
2730                 av_free(ost->pict_tmp.data[0]);
2731                 av_free(ost->forced_kf_pts);
2732                 if (ost->video_resample)
2733                     sws_freeContext(ost->img_resample_ctx);
2734                 if (ost->resample)
2735                     audio_resample_close(ost->resample);
2736                 if (ost->reformat_ctx)
2737                     av_audio_convert_free(ost->reformat_ctx);
2738                 av_free(ost);
2739             }
2740         }
2741         av_free(ost_table);
2742     }
2743     return ret;
2744 }
2745
2746 static void opt_format(const char *arg)
2747 {
2748     last_asked_format = arg;
2749 }
2750
2751 static void opt_video_rc_override_string(const char *arg)
2752 {
2753     video_rc_override_string = arg;
2754 }
2755
2756 static int opt_me_threshold(const char *opt, const char *arg)
2757 {
2758     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2759     return 0;
2760 }
2761
2762 static int opt_verbose(const char *opt, const char *arg)
2763 {
2764     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2765     return 0;
2766 }
2767
2768 static int opt_frame_rate(const char *opt, const char *arg)
2769 {
2770     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2771         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2772         ffmpeg_exit(1);
2773     }
2774     return 0;
2775 }
2776
2777 static int opt_bitrate(const char *opt, const char *arg)
2778 {
2779     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2780
2781     opt_default(opt, arg);
2782
2783     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2784         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2785
2786     return 0;
2787 }
2788
2789 static int opt_frame_crop(const char *opt, const char *arg)
2790 {
2791     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2792     return AVERROR(EINVAL);
2793 }
2794
2795 static void opt_frame_size(const char *arg)
2796 {
2797     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2798         fprintf(stderr, "Incorrect frame size\n");
2799         ffmpeg_exit(1);
2800     }
2801 }
2802
2803 static int opt_pad(const char *opt, const char *arg) {
2804     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2805     return -1;
2806 }
2807
2808 static void opt_frame_pix_fmt(const char *arg)
2809 {
2810     if (strcmp(arg, "list")) {
2811         frame_pix_fmt = av_get_pix_fmt(arg);
2812         if (frame_pix_fmt == PIX_FMT_NONE) {
2813             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2814             ffmpeg_exit(1);
2815         }
2816     } else {
2817         show_pix_fmts();
2818         ffmpeg_exit(0);
2819     }
2820 }
2821
2822 static void opt_frame_aspect_ratio(const char *arg)
2823 {
2824     int x = 0, y = 0;
2825     double ar = 0;
2826     const char *p;
2827     char *end;
2828
2829     p = strchr(arg, ':');
2830     if (p) {
2831         x = strtol(arg, &end, 10);
2832         if (end == p)
2833             y = strtol(end+1, &end, 10);
2834         if (x > 0 && y > 0)
2835             ar = (double)x / (double)y;
2836     } else
2837         ar = strtod(arg, NULL);
2838
2839     if (!ar) {
2840         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2841         ffmpeg_exit(1);
2842     }
2843     frame_aspect_ratio = ar;
2844 }
2845
2846 static int opt_metadata(const char *opt, const char *arg)
2847 {
2848     char *mid= strchr(arg, '=');
2849
2850     if(!mid){
2851         fprintf(stderr, "Missing =\n");
2852         ffmpeg_exit(1);
2853     }
2854     *mid++= 0;
2855
2856     av_metadata_set2(&metadata, arg, mid, 0);
2857
2858     return 0;
2859 }
2860
2861 static int opt_qscale(const char *opt, const char *arg)
2862 {
2863     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2864     if (video_qscale == 0) {
2865         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2866         return AVERROR(EINVAL);
2867     }
2868     return 0;
2869 }
2870
2871 static int opt_top_field_first(const char *opt, const char *arg)
2872 {
2873     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2874     return 0;
2875 }
2876
2877 static int opt_thread_count(const char *opt, const char *arg)
2878 {
2879     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2880 #if !HAVE_THREADS
2881     if (verbose >= 0)
2882         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2883 #endif
2884     return 0;
2885 }
2886
2887 static void opt_audio_sample_fmt(const char *arg)
2888 {
2889     if (strcmp(arg, "list")) {
2890         audio_sample_fmt = av_get_sample_fmt(arg);
2891         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2892             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2893             ffmpeg_exit(1);
2894         }
2895     } else {
2896         int i;
2897         char fmt_str[128];
2898         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2899             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2900         ffmpeg_exit(0);
2901     }
2902 }
2903
2904 static int opt_audio_rate(const char *opt, const char *arg)
2905 {
2906     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2907     return 0;
2908 }
2909
2910 static int opt_audio_channels(const char *opt, const char *arg)
2911 {
2912     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2913     return 0;
2914 }
2915
2916 static int opt_video_channel(const char *opt, const char *arg)
2917 {
2918     video_channel = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2919     return 0;
2920 }
2921
2922 static void opt_video_standard(const char *arg)
2923 {
2924     video_standard = av_strdup(arg);
2925 }
2926
2927 static void opt_codec(int *pstream_copy, char **pcodec_name,
2928                       int codec_type, const char *arg)
2929 {
2930     av_freep(pcodec_name);
2931     if (!strcmp(arg, "copy")) {
2932         *pstream_copy = 1;
2933     } else {
2934         *pcodec_name = av_strdup(arg);
2935     }
2936 }
2937
2938 static void opt_audio_codec(const char *arg)
2939 {
2940     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2941 }
2942
2943 static void opt_video_codec(const char *arg)
2944 {
2945     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2946 }
2947
2948 static void opt_subtitle_codec(const char *arg)
2949 {
2950     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2951 }
2952
2953 static void opt_data_codec(const char *arg)
2954 {
2955     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2956 }
2957
2958 static int opt_codec_tag(const char *opt, const char *arg)
2959 {
2960     char *tail;
2961     uint32_t *codec_tag;
2962
2963     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2964                 !strcmp(opt, "vtag") ? &video_codec_tag :
2965                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2966     if (!codec_tag)
2967         return -1;
2968
2969     *codec_tag = strtol(arg, &tail, 0);
2970     if (!tail || *tail)
2971         *codec_tag = AV_RL32(arg);
2972
2973     return 0;
2974 }
2975
2976 static void opt_map(const char *arg)
2977 {
2978     AVStreamMap *m;
2979     char *p;
2980
2981     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2982     m = &stream_maps[nb_stream_maps-1];
2983
2984     m->file_index = strtol(arg, &p, 0);
2985     if (*p)
2986         p++;
2987
2988     m->stream_index = strtol(p, &p, 0);
2989     if (*p) {
2990         p++;
2991         m->sync_file_index = strtol(p, &p, 0);
2992         if (*p)
2993             p++;
2994         m->sync_stream_index = strtol(p, &p, 0);
2995     } else {
2996         m->sync_file_index = m->file_index;
2997         m->sync_stream_index = m->stream_index;
2998     }
2999 }
3000
3001 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3002 {
3003     *endptr = arg;
3004     if (*arg == ',') {
3005         *type = *(++arg);
3006         switch (*arg) {
3007         case 'g':
3008             break;
3009         case 's':
3010         case 'c':
3011         case 'p':
3012             *index = strtol(++arg, endptr, 0);
3013             break;
3014         default:
3015             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3016             ffmpeg_exit(1);
3017         }
3018     } else
3019         *type = 'g';
3020 }
3021
3022 static void opt_map_metadata(const char *arg)
3023 {
3024     AVMetaDataMap *m, *m1;
3025     char *p;
3026
3027     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3028                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3029
3030     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3031     m->file = strtol(arg, &p, 0);
3032     parse_meta_type(p, &m->type, &m->index, &p);
3033     if (*p)
3034         p++;
3035
3036     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3037     m1->file = strtol(p, &p, 0);
3038     parse_meta_type(p, &m1->type, &m1->index, &p);
3039
3040     if (m->type == 'g' || m1->type == 'g')
3041         metadata_global_autocopy = 0;
3042     if (m->type == 's' || m1->type == 's')
3043         metadata_streams_autocopy = 0;
3044     if (m->type == 'c' || m1->type == 'c')
3045         metadata_chapters_autocopy = 0;
3046 }
3047
3048 static void opt_map_meta_data(const char *arg)
3049 {
3050     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3051                     "Use -map_metadata instead.\n");
3052     opt_map_metadata(arg);
3053 }
3054
3055 static void opt_map_chapters(const char *arg)
3056 {
3057     AVChapterMap *c;
3058     char *p;
3059
3060     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3061                               nb_chapter_maps + 1);
3062     c = &chapter_maps[nb_chapter_maps - 1];
3063     c->out_file = strtol(arg, &p, 0);
3064     if (*p)
3065         p++;
3066
3067     c->in_file = strtol(p, &p, 0);
3068 }
3069
3070 static void opt_input_ts_scale(const char *arg)
3071 {
3072     unsigned int stream;
3073     double scale;
3074     char *p;
3075
3076     stream = strtol(arg, &p, 0);
3077     if (*p)
3078         p++;
3079     scale= strtod(p, &p);
3080
3081     if(stream >= MAX_STREAMS)
3082         ffmpeg_exit(1);
3083
3084     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);
3085     input_files_ts_scale[nb_input_files][stream]= scale;
3086 }
3087
3088 static int opt_recording_time(const char *opt, const char *arg)
3089 {
3090     recording_time = parse_time_or_die(opt, arg, 1);
3091     return 0;
3092 }
3093
3094 static int opt_start_time(const char *opt, const char *arg)
3095 {
3096     start_time = parse_time_or_die(opt, arg, 1);
3097     return 0;
3098 }
3099
3100 static int opt_recording_timestamp(const char *opt, const char *arg)
3101 {
3102     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3103     return 0;
3104 }
3105
3106 static int opt_input_ts_offset(const char *opt, const char *arg)
3107 {
3108     input_ts_offset = parse_time_or_die(opt, arg, 1);
3109     return 0;
3110 }
3111
3112 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3113 {
3114     const char *codec_string = encoder ? "encoder" : "decoder";
3115     AVCodec *codec;
3116
3117     if(!name)
3118         return CODEC_ID_NONE;
3119     codec = encoder ?
3120         avcodec_find_encoder_by_name(name) :
3121         avcodec_find_decoder_by_name(name);
3122     if(!codec) {
3123         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3124         ffmpeg_exit(1);
3125     }
3126     if(codec->type != type) {
3127         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3128         ffmpeg_exit(1);
3129     }
3130     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3131        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3132         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3133                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3134                 codec_string, codec->name);
3135         codec = encoder ?
3136             avcodec_find_encoder(codec->id) :
3137             avcodec_find_decoder(codec->id);
3138         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3139             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3140                     codec_string, codec->name);
3141         ffmpeg_exit(1);
3142     }
3143     return codec->id;
3144 }
3145
3146 static void opt_input_file(const char *filename)
3147 {
3148     AVFormatContext *ic;
3149     AVFormatParameters params, *ap = &params;
3150     AVInputFormat *file_iformat = NULL;
3151     int err, i, ret, rfps, rfps_base;
3152     int64_t timestamp;
3153
3154     if (last_asked_format) {
3155         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3156             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3157             ffmpeg_exit(1);
3158         }
3159         last_asked_format = NULL;
3160     }
3161
3162     if (!strcmp(filename, "-"))
3163         filename = "pipe:";
3164
3165     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3166                     !strcmp(filename, "/dev/stdin");
3167
3168     /* get default parameters from command line */
3169     ic = avformat_alloc_context();
3170     if (!ic) {
3171         print_error(filename, AVERROR(ENOMEM));
3172         ffmpeg_exit(1);
3173     }
3174
3175     memset(ap, 0, sizeof(*ap));
3176     ap->prealloced_context = 1;
3177     ap->sample_rate = audio_sample_rate;
3178     ap->channels = audio_channels;
3179     ap->time_base.den = frame_rate.num;
3180     ap->time_base.num = frame_rate.den;
3181     ap->width = frame_width;
3182     ap->height = frame_height;
3183     ap->pix_fmt = frame_pix_fmt;
3184    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3185     ap->channel = video_channel;
3186     ap->standard = video_standard;
3187
3188     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3189
3190     ic->video_codec_id   =
3191         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3192                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3193     ic->audio_codec_id   =
3194         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3195                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3196     ic->subtitle_codec_id=
3197         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3198                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3199     ic->flags |= AVFMT_FLAG_NONBLOCK;
3200
3201     /* open the input file with generic libav function */
3202     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3203     if (err < 0) {
3204         print_error(filename, err);
3205         ffmpeg_exit(1);
3206     }
3207     if(opt_programid) {
3208         int i, j;
3209         int found=0;
3210         for(i=0; i<ic->nb_streams; i++){
3211             ic->streams[i]->discard= AVDISCARD_ALL;
3212         }
3213         for(i=0; i<ic->nb_programs; i++){
3214             AVProgram *p= ic->programs[i];
3215             if(p->id != opt_programid){
3216                 p->discard = AVDISCARD_ALL;
3217             }else{
3218                 found=1;
3219                 for(j=0; j<p->nb_stream_indexes; j++){
3220                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3221                 }
3222             }
3223         }
3224         if(!found){
3225             fprintf(stderr, "Specified program id not found\n");
3226             ffmpeg_exit(1);
3227         }
3228         opt_programid=0;
3229     }
3230
3231     ic->loop_input = loop_input;
3232
3233     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3234     for (i = 0; i < ic->nb_streams; i++) {
3235         AVCodecContext *dec = ic->streams[i]->codec;
3236         switch (dec->codec_type) {
3237         case AVMEDIA_TYPE_AUDIO:
3238             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3239                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3240                              NULL);
3241             break;
3242         case AVMEDIA_TYPE_VIDEO:
3243             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3244                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3245                              NULL);
3246             break;
3247         }
3248     }
3249
3250     /* If not enough info to get the stream parameters, we decode the
3251        first frames to get it. (used in mpeg case for example) */
3252     ret = av_find_stream_info(ic);
3253     if (ret < 0 && verbose >= 0) {
3254         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3255         av_close_input_file(ic);
3256         ffmpeg_exit(1);
3257     }
3258
3259     timestamp = start_time;
3260     /* add the stream start time */
3261     if (ic->start_time != AV_NOPTS_VALUE)
3262         timestamp += ic->start_time;
3263
3264     /* if seeking requested, we execute it */
3265     if (start_time != 0) {
3266         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3267         if (ret < 0) {
3268             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3269                     filename, (double)timestamp / AV_TIME_BASE);
3270         }
3271         /* reset seek info */
3272         start_time = 0;
3273     }
3274
3275     /* update the current parameters so that they match the one of the input stream */
3276     for(i=0;i<ic->nb_streams;i++) {
3277         AVStream *st = ic->streams[i];
3278         AVCodecContext *dec = st->codec;
3279         dec->thread_count = thread_count;
3280         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3281         switch (dec->codec_type) {
3282         case AVMEDIA_TYPE_AUDIO:
3283             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3284             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]);
3285             channel_layout    = dec->channel_layout;
3286             audio_channels    = dec->channels;
3287             audio_sample_rate = dec->sample_rate;
3288             audio_sample_fmt  = dec->sample_fmt;
3289             if(audio_disable)
3290                 st->discard= AVDISCARD_ALL;
3291             /* Note that av_find_stream_info can add more streams, and we
3292              * currently have no chance of setting up lowres decoding
3293              * early enough for them. */
3294             if (dec->lowres)
3295                 audio_sample_rate >>= dec->lowres;
3296             break;
3297         case AVMEDIA_TYPE_VIDEO:
3298             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3299             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]);
3300             frame_height = dec->height;
3301             frame_width  = dec->width;
3302             frame_pix_fmt = dec->pix_fmt;
3303             rfps      = ic->streams[i]->r_frame_rate.num;
3304             rfps_base = ic->streams[i]->r_frame_rate.den;
3305             if (dec->lowres) {
3306                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3307                 frame_height >>= dec->lowres;
3308                 frame_width  >>= dec->lowres;
3309                 dec->height = frame_height;
3310                 dec->width  = frame_width;
3311             }
3312             if(me_threshold)
3313                 dec->debug |= FF_DEBUG_MV;
3314
3315             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3316
3317                 if (verbose >= 0)
3318                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3319                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3320
3321                     (float)rfps / rfps_base, rfps, rfps_base);
3322             }
3323             /* update the current frame rate to match the stream frame rate */
3324             frame_rate.num = rfps;
3325             frame_rate.den = rfps_base;
3326
3327             if(video_disable)
3328                 st->discard= AVDISCARD_ALL;
3329             else if(video_discard)
3330                 st->discard= video_discard;
3331             break;
3332         case AVMEDIA_TYPE_DATA:
3333             break;
3334         case AVMEDIA_TYPE_SUBTITLE:
3335             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3336             if(subtitle_disable)
3337                 st->discard = AVDISCARD_ALL;
3338             break;
3339         case AVMEDIA_TYPE_ATTACHMENT:
3340         case AVMEDIA_TYPE_UNKNOWN:
3341             break;
3342         default:
3343             abort();
3344         }
3345     }
3346
3347     input_files[nb_input_files] = ic;
3348     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3349     /* dump the file content */
3350     if (verbose >= 0)
3351         av_dump_format(ic, nb_input_files, filename, 0);
3352
3353     nb_input_files++;
3354
3355     video_channel = 0;
3356
3357     av_freep(&video_codec_name);
3358     av_freep(&audio_codec_name);
3359     av_freep(&subtitle_codec_name);
3360     uninit_opts();
3361     init_opts();
3362 }
3363
3364 static void check_inputs(int *has_video_ptr,
3365                          int *has_audio_ptr,
3366                          int *has_subtitle_ptr,
3367                          int *has_data_ptr)
3368 {
3369     int has_video, has_audio, has_subtitle, has_data, i, j;
3370     AVFormatContext *ic;
3371
3372     has_video = 0;
3373     has_audio = 0;
3374     has_subtitle = 0;
3375     has_data = 0;
3376
3377     for(j=0;j<nb_input_files;j++) {
3378         ic = input_files[j];
3379         for(i=0;i<ic->nb_streams;i++) {
3380             AVCodecContext *enc = ic->streams[i]->codec;
3381             switch(enc->codec_type) {
3382             case AVMEDIA_TYPE_AUDIO:
3383                 has_audio = 1;
3384                 break;
3385             case AVMEDIA_TYPE_VIDEO:
3386                 has_video = 1;
3387                 break;
3388             case AVMEDIA_TYPE_SUBTITLE:
3389                 has_subtitle = 1;
3390                 break;
3391             case AVMEDIA_TYPE_DATA:
3392             case AVMEDIA_TYPE_ATTACHMENT:
3393             case AVMEDIA_TYPE_UNKNOWN:
3394                 has_data = 1;
3395                 break;
3396             default:
3397                 abort();
3398             }
3399         }
3400     }
3401     *has_video_ptr = has_video;
3402     *has_audio_ptr = has_audio;
3403     *has_subtitle_ptr = has_subtitle;
3404     *has_data_ptr = has_data;
3405 }
3406
3407 static void new_video_stream(AVFormatContext *oc, int file_idx)
3408 {
3409     AVStream *st;
3410     AVOutputStream *ost;
3411     AVCodecContext *video_enc;
3412     enum CodecID codec_id = CODEC_ID_NONE;
3413     AVCodec *codec= NULL;
3414
3415     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3416     if (!st) {
3417         fprintf(stderr, "Could not alloc stream\n");
3418         ffmpeg_exit(1);
3419     }
3420     ost = new_output_stream(oc, file_idx);
3421
3422     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3423     if(!video_stream_copy){
3424         if (video_codec_name) {
3425             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3426                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3427             codec = avcodec_find_encoder_by_name(video_codec_name);
3428             output_codecs[nb_output_codecs-1] = codec;
3429         } else {
3430             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3431             codec = avcodec_find_encoder(codec_id);
3432         }
3433
3434         ost->frame_aspect_ratio = frame_aspect_ratio;
3435         frame_aspect_ratio = 0;
3436 #if CONFIG_AVFILTER
3437         ost->avfilter= vfilters;
3438         vfilters = NULL;
3439 #endif
3440     }
3441
3442     avcodec_get_context_defaults3(st->codec, codec);
3443     ost->bitstream_filters = video_bitstream_filters;
3444     video_bitstream_filters= NULL;
3445
3446     st->codec->thread_count= thread_count;
3447
3448     video_enc = st->codec;
3449
3450     if(video_codec_tag)
3451         video_enc->codec_tag= video_codec_tag;
3452
3453     if(   (video_global_header&1)
3454        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3455         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3456         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3457     }
3458     if(video_global_header&2){
3459         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3460         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3461     }
3462
3463     if (video_stream_copy) {
3464         st->stream_copy = 1;
3465         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3466         video_enc->sample_aspect_ratio =
3467         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3468     } else {
3469         const char *p;
3470         int i;
3471         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3472
3473         video_enc->codec_id = codec_id;
3474         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3475
3476         if (codec && codec->supported_framerates && !force_fps)
3477             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3478         video_enc->time_base.den = fps.num;
3479         video_enc->time_base.num = fps.den;
3480
3481         video_enc->width = frame_width;
3482         video_enc->height = frame_height;
3483         video_enc->pix_fmt = frame_pix_fmt;
3484         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3485
3486         choose_pixel_fmt(st, codec);
3487
3488         if (intra_only)
3489             video_enc->gop_size = 0;
3490         if (video_qscale || same_quality) {
3491             video_enc->flags |= CODEC_FLAG_QSCALE;
3492             video_enc->global_quality=
3493                 st->quality = FF_QP2LAMBDA * video_qscale;
3494         }
3495
3496         if(intra_matrix)
3497             video_enc->intra_matrix = intra_matrix;
3498         if(inter_matrix)
3499             video_enc->inter_matrix = inter_matrix;
3500
3501         p= video_rc_override_string;
3502         for(i=0; p; i++){
3503             int start, end, q;
3504             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3505             if(e!=3){
3506                 fprintf(stderr, "error parsing rc_override\n");
3507                 ffmpeg_exit(1);
3508             }
3509             video_enc->rc_override=
3510                 av_realloc(video_enc->rc_override,
3511                            sizeof(RcOverride)*(i+1));
3512             video_enc->rc_override[i].start_frame= start;
3513             video_enc->rc_override[i].end_frame  = end;
3514             if(q>0){
3515                 video_enc->rc_override[i].qscale= q;
3516                 video_enc->rc_override[i].quality_factor= 1.0;
3517             }
3518             else{
3519                 video_enc->rc_override[i].qscale= 0;
3520                 video_enc->rc_override[i].quality_factor= -q/100.0;
3521             }
3522             p= strchr(p, '/');
3523             if(p) p++;
3524         }
3525         video_enc->rc_override_count=i;
3526         if (!video_enc->rc_initial_buffer_occupancy)
3527             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3528         video_enc->me_threshold= me_threshold;
3529         video_enc->intra_dc_precision= intra_dc_precision - 8;
3530
3531         if (do_psnr)
3532             video_enc->flags|= CODEC_FLAG_PSNR;
3533
3534         /* two pass mode */
3535         if (do_pass) {
3536             if (do_pass == 1) {
3537                 video_enc->flags |= CODEC_FLAG_PASS1;
3538             } else {
3539                 video_enc->flags |= CODEC_FLAG_PASS2;
3540             }
3541         }
3542
3543         if (forced_key_frames)
3544             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3545     }
3546     if (video_language) {
3547         av_metadata_set2(&st->metadata, "language", video_language, 0);
3548         av_freep(&video_language);
3549     }
3550
3551     /* reset some key parameters */
3552     video_disable = 0;
3553     av_freep(&video_codec_name);
3554     av_freep(&forced_key_frames);
3555     video_stream_copy = 0;
3556     frame_pix_fmt = PIX_FMT_NONE;
3557 }
3558
3559 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3560 {
3561     AVStream *st;
3562     AVOutputStream *ost;
3563     AVCodec *codec= NULL;
3564     AVCodecContext *audio_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
3574     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3575     if(!audio_stream_copy){
3576         if (audio_codec_name) {
3577             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3578                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3579             codec = avcodec_find_encoder_by_name(audio_codec_name);
3580             output_codecs[nb_output_codecs-1] = codec;
3581         } else {
3582             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3583             codec = avcodec_find_encoder(codec_id);
3584         }
3585     }
3586
3587     avcodec_get_context_defaults3(st->codec, codec);
3588
3589     ost->bitstream_filters = audio_bitstream_filters;
3590     audio_bitstream_filters= NULL;
3591
3592     st->codec->thread_count= thread_count;
3593
3594     audio_enc = st->codec;
3595     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3596
3597     if(audio_codec_tag)
3598         audio_enc->codec_tag= audio_codec_tag;
3599
3600     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3601         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3602         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3603     }
3604     if (audio_stream_copy) {
3605         st->stream_copy = 1;
3606         audio_enc->channels = audio_channels;
3607         audio_enc->sample_rate = audio_sample_rate;
3608     } else {
3609         audio_enc->codec_id = codec_id;
3610         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3611
3612         if (audio_qscale > QSCALE_NONE) {
3613             audio_enc->flags |= CODEC_FLAG_QSCALE;
3614             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3615         }
3616         audio_enc->channels = audio_channels;
3617         audio_enc->sample_fmt = audio_sample_fmt;
3618         audio_enc->sample_rate = audio_sample_rate;
3619         audio_enc->channel_layout = channel_layout;
3620         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3621             audio_enc->channel_layout = 0;
3622         choose_sample_fmt(st, codec);
3623         choose_sample_rate(st, codec);
3624     }
3625     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3626     if (audio_language) {
3627         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3628         av_freep(&audio_language);
3629     }
3630
3631     /* reset some key parameters */
3632     audio_disable = 0;
3633     av_freep(&audio_codec_name);
3634     audio_stream_copy = 0;
3635 }
3636
3637 static void new_data_stream(AVFormatContext *oc, int file_idx)
3638 {
3639     AVStream *st;
3640     AVOutputStream *ost;
3641     AVCodec *codec=NULL;
3642     AVCodecContext *data_enc;
3643
3644     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3645     if (!st) {
3646         fprintf(stderr, "Could not alloc stream\n");
3647         ffmpeg_exit(1);
3648     }