lavf: use designated initialisers for all (de)muxers.
[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/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int file_index;
83     int stream_index;
84     int sync_file_index;
85     int sync_stream_index;
86 } StreamMap;
87
88 /**
89  * select an input file for an output file
90  */
91 typedef struct MetadataMap {
92     int  file;      //< file index
93     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94     int  index;     //< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98     int in_file;
99     int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105
106 static const char *last_asked_format = NULL;
107 static double *ts_scale;
108 static int  nb_ts_scale;
109
110 static AVFormatContext *output_files[MAX_FILES];
111 static AVDictionary *output_opts[MAX_FILES];
112 static int nb_output_files = 0;
113
114 static StreamMap *stream_maps = NULL;
115 static int nb_stream_maps;
116
117 /* first item specifies output metadata, second is input */
118 static MetadataMap (*meta_data_maps)[2] = NULL;
119 static int nb_meta_data_maps;
120 static int metadata_global_autocopy   = 1;
121 static int metadata_streams_autocopy  = 1;
122 static int metadata_chapters_autocopy = 1;
123
124 static ChapterMap *chapter_maps = NULL;
125 static int nb_chapter_maps;
126
127 /* indexed by output file stream index */
128 static int *streamid_map = NULL;
129 static int nb_streamid_map = 0;
130
131 static int frame_width  = 0;
132 static int frame_height = 0;
133 static float frame_aspect_ratio = 0;
134 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
135 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
136 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
137 static AVRational frame_rate;
138 static float video_qscale = 0;
139 static uint16_t *intra_matrix = NULL;
140 static uint16_t *inter_matrix = NULL;
141 static const char *video_rc_override_string=NULL;
142 static int video_disable = 0;
143 static int video_discard = 0;
144 static char *video_codec_name = NULL;
145 static unsigned int video_codec_tag = 0;
146 static char *video_language = NULL;
147 static int same_quality = 0;
148 static int do_deinterlace = 0;
149 static int top_field_first = -1;
150 static int me_threshold = 0;
151 static int intra_dc_precision = 8;
152 static int loop_input = 0;
153 static int loop_output = AVFMT_NOOUTPUTLOOP;
154 static int qp_hist = 0;
155 #if CONFIG_AVFILTER
156 static char *vfilters = NULL;
157 #endif
158
159 static int intra_only = 0;
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static char  *audio_codec_name = NULL;
166 static unsigned int audio_codec_tag = 0;
167 static char *audio_language = NULL;
168
169 static int subtitle_disable = 0;
170 static char *subtitle_codec_name = NULL;
171 static char *subtitle_language = NULL;
172 static unsigned int subtitle_codec_tag = 0;
173
174 static int data_disable = 0;
175 static char *data_codec_name = NULL;
176 static unsigned int data_codec_tag = 0;
177
178 static float mux_preload= 0.5;
179 static float mux_max_delay= 0.7;
180
181 static int64_t recording_time = INT64_MAX;
182 static int64_t start_time = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static AVDictionary *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static char *pass_logfilename_prefix = NULL;
192 static int audio_stream_copy = 0;
193 static int video_stream_copy = 0;
194 static int subtitle_stream_copy = 0;
195 static int data_stream_copy = 0;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int audio_volume = 256;
210
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int thread_count= 1;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223 static char *forced_key_frames = NULL;
224
225 static float dts_delta_threshold = 10;
226
227 static int64_t timer_start;
228
229 static uint8_t *audio_buf;
230 static uint8_t *audio_out;
231 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
232
233 static short *samples;
234
235 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
236 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
238
239 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
240
241 struct InputStream;
242
243 typedef struct OutputStream {
244     int file_index;          /* file index */
245     int index;               /* stream index in the output file */
246     int source_index;        /* InputStream index */
247     AVStream *st;            /* stream in the output file */
248     int encoding_needed;     /* true if encoding needed for this stream */
249     int frame_number;
250     /* input pts and corresponding output pts
251        for A/V sync */
252     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
253     struct InputStream *sync_ist; /* input stream to sync against */
254     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
255     AVBitStreamFilterContext *bitstream_filters;
256     AVCodec *enc;
257
258     /* video only */
259     int video_resample;
260     AVFrame pict_tmp;      /* temporary image for resampling */
261     struct SwsContext *img_resample_ctx; /* for image resampling */
262     int resample_height;
263     int resample_width;
264     int resample_pix_fmt;
265     AVRational frame_rate;
266
267     float frame_aspect_ratio;
268
269     /* forced key frames */
270     int64_t *forced_kf_pts;
271     int forced_kf_count;
272     int forced_kf_index;
273
274     /* audio only */
275     int audio_resample;
276     ReSampleContext *resample; /* for audio resampling */
277     int resample_sample_fmt;
278     int resample_channels;
279     int resample_sample_rate;
280     int reformat_pair;
281     AVAudioConvert *reformat_ctx;
282     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
283     FILE *logfile;
284
285 #if CONFIG_AVFILTER
286     AVFilterContext *output_video_filter;
287     AVFilterContext *input_video_filter;
288     AVFilterBufferRef *picref;
289     char *avfilter;
290     AVFilterGraph *graph;
291 #endif
292
293    int sws_flags;
294    AVDictionary *opts;
295 } OutputStream;
296
297 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
298 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
299
300 typedef struct InputStream {
301     int file_index;
302     AVStream *st;
303     int discard;             /* true if stream data should be discarded */
304     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
305     AVCodec *dec;
306
307     int64_t       start;     /* time when read started */
308     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
309                                 is not defined */
310     int64_t       pts;       /* current pts */
311     PtsCorrectionContext pts_ctx;
312     double ts_scale;
313     int is_start;            /* is 1 at the start and after a discontinuity */
314     int showed_multi_packet_warning;
315     int is_past_recording_time;
316     AVDictionary *opts;
317 } InputStream;
318
319 typedef struct InputFile {
320     AVFormatContext *ctx;
321     int eof_reached;      /* true if eof reached */
322     int ist_index;        /* index of first stream in ist_table */
323     int buffer_size;      /* current total buffer size */
324     int64_t ts_offset;
325 } InputFile;
326
327 static InputStream *input_streams = NULL;
328 static int         nb_input_streams = 0;
329 static InputFile   *input_files   = NULL;
330 static int         nb_input_files   = 0;
331
332 #if CONFIG_AVFILTER
333
334 static int configure_video_filters(InputStream *ist, OutputStream *ost)
335 {
336     AVFilterContext *last_filter, *filter;
337     /** filter graph containing all filters including input & output */
338     AVCodecContext *codec = ost->st->codec;
339     AVCodecContext *icodec = ist->st->codec;
340     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
341     AVRational sample_aspect_ratio;
342     char args[255];
343     int ret;
344
345     ost->graph = avfilter_graph_alloc();
346
347     if (ist->st->sample_aspect_ratio.num){
348         sample_aspect_ratio = ist->st->sample_aspect_ratio;
349     }else
350         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
351
352     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
353              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
354              sample_aspect_ratio.num, sample_aspect_ratio.den);
355
356     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
357                                        "src", args, NULL, ost->graph);
358     if (ret < 0)
359         return ret;
360     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
361                                        "out", NULL, &ffsink_ctx, ost->graph);
362     if (ret < 0)
363         return ret;
364     last_filter = ost->input_video_filter;
365
366     if (codec->width  != icodec->width || codec->height != icodec->height) {
367         snprintf(args, 255, "%d:%d:flags=0x%X",
368                  codec->width,
369                  codec->height,
370                  ost->sws_flags);
371         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
372                                                 NULL, args, NULL, ost->graph)) < 0)
373             return ret;
374         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
375             return ret;
376         last_filter = filter;
377     }
378
379     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
380     ost->graph->scale_sws_opts = av_strdup(args);
381
382     if (ost->avfilter) {
383         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
384         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
385
386         outputs->name    = av_strdup("in");
387         outputs->filter_ctx = last_filter;
388         outputs->pad_idx = 0;
389         outputs->next    = NULL;
390
391         inputs->name    = av_strdup("out");
392         inputs->filter_ctx = ost->output_video_filter;
393         inputs->pad_idx = 0;
394         inputs->next    = NULL;
395
396         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
397             return ret;
398         av_freep(&ost->avfilter);
399     } else {
400         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
401             return ret;
402     }
403
404     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
405         return ret;
406
407     codec->width  = ost->output_video_filter->inputs[0]->w;
408     codec->height = ost->output_video_filter->inputs[0]->h;
409     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
410         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
411         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
412         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
413
414     return 0;
415 }
416 #endif /* CONFIG_AVFILTER */
417
418 static void term_exit(void)
419 {
420     av_log(NULL, AV_LOG_QUIET, "");
421 }
422
423 static volatile int received_sigterm = 0;
424 static volatile int received_nb_signals = 0;
425
426 static void
427 sigterm_handler(int sig)
428 {
429     received_sigterm = sig;
430     received_nb_signals++;
431     term_exit();
432 }
433
434 static void term_init(void)
435 {
436     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
437     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
438 #ifdef SIGXCPU
439     signal(SIGXCPU, sigterm_handler);
440 #endif
441 }
442
443 static int decode_interrupt_cb(void)
444 {
445     return received_nb_signals > 1;
446 }
447
448 static int ffmpeg_exit(int ret)
449 {
450     int i;
451
452     /* close files */
453     for(i=0;i<nb_output_files;i++) {
454         AVFormatContext *s = output_files[i];
455         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456             avio_close(s->pb);
457         avformat_free_context(s);
458         av_free(output_streams_for_file[i]);
459         av_dict_free(&output_opts[i]);
460     }
461     for(i=0;i<nb_input_files;i++) {
462         av_close_input_file(input_files[i].ctx);
463     }
464     for (i = 0; i < nb_input_streams; i++)
465         av_dict_free(&input_streams[i].opts);
466
467     av_free(intra_matrix);
468     av_free(inter_matrix);
469
470     if (vstats_file)
471         fclose(vstats_file);
472     av_free(vstats_filename);
473
474     av_free(streamid_map);
475     av_free(stream_maps);
476     av_free(meta_data_maps);
477
478     av_freep(&input_streams);
479     av_freep(&input_files);
480
481     av_free(video_codec_name);
482     av_free(audio_codec_name);
483     av_free(subtitle_codec_name);
484     av_free(data_codec_name);
485
486     uninit_opts();
487     av_free(audio_buf);
488     av_free(audio_out);
489     allocated_audio_buf_size= allocated_audio_out_size= 0;
490     av_free(samples);
491
492 #if CONFIG_AVFILTER
493     avfilter_uninit();
494 #endif
495
496     if (received_sigterm) {
497         fprintf(stderr,
498             "Received signal %d: terminating.\n",
499             (int) received_sigterm);
500         exit (255);
501     }
502
503     exit(ret); /* not all OS-es handle main() return value */
504     return ret;
505 }
506
507 static void assert_avoptions(AVDictionary *m)
508 {
509     AVDictionaryEntry *t;
510     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
511         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
512         ffmpeg_exit(1);
513     }
514 }
515
516 static void assert_codec_experimental(AVCodecContext *c, int encoder)
517 {
518     const char *codec_string = encoder ? "encoder" : "decoder";
519     AVCodec *codec;
520     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
521         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
522         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
523                 "results.\nAdd '-strict experimental' if you want to use it.\n",
524                 codec_string, c->codec->name);
525         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
526         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
527             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
528                    codec_string, codec->name);
529         ffmpeg_exit(1);
530     }
531 }
532
533 /* similar to ff_dynarray_add() and av_fast_realloc() */
534 static void *grow_array(void *array, int elem_size, int *size, int new_size)
535 {
536     if (new_size >= INT_MAX / elem_size) {
537         fprintf(stderr, "Array too big.\n");
538         ffmpeg_exit(1);
539     }
540     if (*size < new_size) {
541         uint8_t *tmp = av_realloc(array, new_size*elem_size);
542         if (!tmp) {
543             fprintf(stderr, "Could not alloc buffer.\n");
544             ffmpeg_exit(1);
545         }
546         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
547         *size = new_size;
548         return tmp;
549     }
550     return array;
551 }
552
553 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
554 {
555     if(codec && codec->sample_fmts){
556         const enum AVSampleFormat *p= codec->sample_fmts;
557         for(; *p!=-1; p++){
558             if(*p == st->codec->sample_fmt)
559                 break;
560         }
561         if (*p == -1) {
562             av_log(NULL, AV_LOG_WARNING,
563                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
564                    av_get_sample_fmt_name(st->codec->sample_fmt),
565                    codec->name,
566                    av_get_sample_fmt_name(codec->sample_fmts[0]));
567             st->codec->sample_fmt = codec->sample_fmts[0];
568         }
569     }
570 }
571
572 /**
573  * Update the requested input sample format based on the output sample format.
574  * This is currently only used to request float output from decoders which
575  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
576  * Ideally this will be removed in the future when decoders do not do format
577  * conversion and only output in their native format.
578  */
579 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
580                               AVCodecContext *enc)
581 {
582     /* if sample formats match or a decoder sample format has already been
583        requested, just return */
584     if (enc->sample_fmt == dec->sample_fmt ||
585         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
586         return;
587
588     /* if decoder supports more than one output format */
589     if (dec_codec && dec_codec->sample_fmts &&
590         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
591         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
592         const enum AVSampleFormat *p;
593         int min_dec = -1, min_inc = -1;
594
595         /* find a matching sample format in the encoder */
596         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
597             if (*p == enc->sample_fmt) {
598                 dec->request_sample_fmt = *p;
599                 return;
600             } else if (*p > enc->sample_fmt) {
601                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
602             } else
603                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
604         }
605
606         /* if none match, provide the one that matches quality closest */
607         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
608                                   enc->sample_fmt - min_dec;
609     }
610 }
611
612 static void choose_sample_rate(AVStream *st, AVCodec *codec)
613 {
614     if(codec && codec->supported_samplerates){
615         const int *p= codec->supported_samplerates;
616         int best=0;
617         int best_dist=INT_MAX;
618         for(; *p; p++){
619             int dist= abs(st->codec->sample_rate - *p);
620             if(dist < best_dist){
621                 best_dist= dist;
622                 best= *p;
623             }
624         }
625         if(best_dist){
626             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
627         }
628         st->codec->sample_rate= best;
629     }
630 }
631
632 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
633 {
634     if(codec && codec->pix_fmts){
635         const enum PixelFormat *p= codec->pix_fmts;
636         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
637             if(st->codec->codec_id==CODEC_ID_MJPEG){
638                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
639             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
640                 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};
641             }
642         }
643         for(; *p!=-1; p++){
644             if(*p == st->codec->pix_fmt)
645                 break;
646         }
647         if (*p == -1) {
648             if(st->codec->pix_fmt != PIX_FMT_NONE)
649                 av_log(NULL, AV_LOG_WARNING,
650                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
651                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
652                         codec->name,
653                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
654             st->codec->pix_fmt = codec->pix_fmts[0];
655         }
656     }
657 }
658
659 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
660 {
661     OutputStream *ost;
662     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
663     int idx      = oc->nb_streams - 1;
664
665     if (!st) {
666         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
667         ffmpeg_exit(1);
668     }
669
670     output_streams_for_file[file_idx] =
671         grow_array(output_streams_for_file[file_idx],
672                    sizeof(*output_streams_for_file[file_idx]),
673                    &nb_output_streams_for_file[file_idx],
674                    oc->nb_streams);
675     ost = output_streams_for_file[file_idx][idx] =
676         av_mallocz(sizeof(OutputStream));
677     if (!ost) {
678         fprintf(stderr, "Could not alloc output stream\n");
679         ffmpeg_exit(1);
680     }
681     ost->file_index = file_idx;
682     ost->index = idx;
683     ost->st    = st;
684     ost->enc   = codec;
685     if (codec)
686         ost->opts  = filter_codec_opts(codec_opts, codec->id, 1);
687
688     avcodec_get_context_defaults3(st->codec, codec);
689
690     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
691     return ost;
692 }
693
694 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
695 {
696     int i, err;
697     AVFormatContext *ic = NULL;
698     int nopts = 0;
699
700     err = avformat_open_input(&ic, filename, NULL, NULL);
701     if (err < 0)
702         return err;
703     /* copy stream format */
704     for(i=0;i<ic->nb_streams;i++) {
705         AVStream *st;
706         OutputStream *ost;
707         AVCodec *codec;
708
709         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
710         ost   = new_output_stream(s, nb_output_files, codec);
711         st    = ost->st;
712
713         // FIXME: a more elegant solution is needed
714         memcpy(st, ic->streams[i], sizeof(AVStream));
715         st->info = NULL;
716         avcodec_copy_context(st->codec, ic->streams[i]->codec);
717
718         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
719             if (audio_stream_copy) {
720                 st->stream_copy = 1;
721             } else
722                 choose_sample_fmt(st, codec);
723         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
724             if (video_stream_copy) {
725                 st->stream_copy = 1;
726             } else
727                 choose_pixel_fmt(st, codec);
728         }
729
730         if(st->codec->flags & CODEC_FLAG_BITEXACT)
731             nopts = 1;
732     }
733
734     av_close_input_file(ic);
735     return 0;
736 }
737
738 static double
739 get_sync_ipts(const OutputStream *ost)
740 {
741     const InputStream *ist = ost->sync_ist;
742     return (double)(ist->pts - start_time)/AV_TIME_BASE;
743 }
744
745 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
746     int ret;
747
748     while(bsfc){
749         AVPacket new_pkt= *pkt;
750         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
751                                           &new_pkt.data, &new_pkt.size,
752                                           pkt->data, pkt->size,
753                                           pkt->flags & AV_PKT_FLAG_KEY);
754         if(a>0){
755             av_free_packet(pkt);
756             new_pkt.destruct= av_destruct_packet;
757         } else if(a<0){
758             fprintf(stderr, "%s failed for stream %d, codec %s",
759                     bsfc->filter->name, pkt->stream_index,
760                     avctx->codec ? avctx->codec->name : "copy");
761             print_error("", a);
762             if (exit_on_error)
763                 ffmpeg_exit(1);
764         }
765         *pkt= new_pkt;
766
767         bsfc= bsfc->next;
768     }
769
770     ret= av_interleaved_write_frame(s, pkt);
771     if(ret < 0){
772         print_error("av_interleaved_write_frame()", ret);
773         ffmpeg_exit(1);
774     }
775 }
776
777 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
778
779 static void do_audio_out(AVFormatContext *s,
780                          OutputStream *ost,
781                          InputStream *ist,
782                          unsigned char *buf, int size)
783 {
784     uint8_t *buftmp;
785     int64_t audio_out_size, audio_buf_size;
786     int64_t allocated_for_size= size;
787
788     int size_out, frame_bytes, ret, resample_changed;
789     AVCodecContext *enc= ost->st->codec;
790     AVCodecContext *dec= ist->st->codec;
791     int osize = av_get_bytes_per_sample(enc->sample_fmt);
792     int isize = av_get_bytes_per_sample(dec->sample_fmt);
793     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
794
795 need_realloc:
796     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
797     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
798     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
799     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
800     audio_buf_size*= osize*enc->channels;
801
802     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
803     if(coded_bps > 8*osize)
804         audio_out_size= audio_out_size * coded_bps / (8*osize);
805     audio_out_size += FF_MIN_BUFFER_SIZE;
806
807     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
808         fprintf(stderr, "Buffer sizes too large\n");
809         ffmpeg_exit(1);
810     }
811
812     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
813     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
814     if (!audio_buf || !audio_out){
815         fprintf(stderr, "Out of memory in do_audio_out\n");
816         ffmpeg_exit(1);
817     }
818
819     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
820         ost->audio_resample = 1;
821
822     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
823                        ost->resample_channels    != dec->channels   ||
824                        ost->resample_sample_rate != dec->sample_rate;
825
826     if ((ost->audio_resample && !ost->resample) || resample_changed) {
827         if (resample_changed) {
828             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",
829                    ist->file_index, ist->st->index,
830                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
831                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
832             ost->resample_sample_fmt  = dec->sample_fmt;
833             ost->resample_channels    = dec->channels;
834             ost->resample_sample_rate = dec->sample_rate;
835             if (ost->resample)
836                 audio_resample_close(ost->resample);
837         }
838         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
839         if (audio_sync_method <= 1 &&
840             ost->resample_sample_fmt  == enc->sample_fmt &&
841             ost->resample_channels    == enc->channels   &&
842             ost->resample_sample_rate == enc->sample_rate) {
843             ost->resample = NULL;
844             ost->audio_resample = 0;
845         } else if (ost->audio_resample) {
846             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
847                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
848             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
849                                                    enc->sample_rate, dec->sample_rate,
850                                                    enc->sample_fmt,  dec->sample_fmt,
851                                                    16, 10, 0, 0.8);
852             if (!ost->resample) {
853                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
854                         dec->channels, dec->sample_rate,
855                         enc->channels, enc->sample_rate);
856                 ffmpeg_exit(1);
857             }
858         }
859     }
860
861 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
862     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
863         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
864         if (ost->reformat_ctx)
865             av_audio_convert_free(ost->reformat_ctx);
866         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
867                                                    dec->sample_fmt, 1, NULL, 0);
868         if (!ost->reformat_ctx) {
869             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
870                 av_get_sample_fmt_name(dec->sample_fmt),
871                 av_get_sample_fmt_name(enc->sample_fmt));
872             ffmpeg_exit(1);
873         }
874         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
875     }
876
877     if(audio_sync_method){
878         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
879                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
880         double idelta= delta*dec->sample_rate / enc->sample_rate;
881         int byte_delta= ((int)idelta)*2*dec->channels;
882
883         //FIXME resample delay
884         if(fabs(delta) > 50){
885             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
886                 if(byte_delta < 0){
887                     byte_delta= FFMAX(byte_delta, -size);
888                     size += byte_delta;
889                     buf  -= byte_delta;
890                     if(verbose > 2)
891                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
892                     if(!size)
893                         return;
894                     ist->is_start=0;
895                 }else{
896                     static uint8_t *input_tmp= NULL;
897                     input_tmp= av_realloc(input_tmp, byte_delta + size);
898
899                     if(byte_delta > allocated_for_size - size){
900                         allocated_for_size= byte_delta + (int64_t)size;
901                         goto need_realloc;
902                     }
903                     ist->is_start=0;
904
905                     memset(input_tmp, 0, byte_delta);
906                     memcpy(input_tmp + byte_delta, buf, size);
907                     buf= input_tmp;
908                     size += byte_delta;
909                     if(verbose > 2)
910                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
911                 }
912             }else if(audio_sync_method>1){
913                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
914                 av_assert0(ost->audio_resample);
915                 if(verbose > 2)
916                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
917 //                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));
918                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
919             }
920         }
921     }else
922         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
923                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
924
925     if (ost->audio_resample) {
926         buftmp = audio_buf;
927         size_out = audio_resample(ost->resample,
928                                   (short *)buftmp, (short *)buf,
929                                   size / (dec->channels * isize));
930         size_out = size_out * enc->channels * osize;
931     } else {
932         buftmp = buf;
933         size_out = size;
934     }
935
936     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
937         const void *ibuf[6]= {buftmp};
938         void *obuf[6]= {audio_buf};
939         int istride[6]= {isize};
940         int ostride[6]= {osize};
941         int len= size_out/istride[0];
942         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
943             printf("av_audio_convert() failed\n");
944             if (exit_on_error)
945                 ffmpeg_exit(1);
946             return;
947         }
948         buftmp = audio_buf;
949         size_out = len*osize;
950     }
951
952     /* now encode as many frames as possible */
953     if (enc->frame_size > 1) {
954         /* output resampled raw samples */
955         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
956             fprintf(stderr, "av_fifo_realloc2() failed\n");
957             ffmpeg_exit(1);
958         }
959         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
960
961         frame_bytes = enc->frame_size * osize * enc->channels;
962
963         while (av_fifo_size(ost->fifo) >= frame_bytes) {
964             AVPacket pkt;
965             av_init_packet(&pkt);
966
967             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
968
969             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
970
971             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
972                                        (short *)audio_buf);
973             if (ret < 0) {
974                 fprintf(stderr, "Audio encoding failed\n");
975                 ffmpeg_exit(1);
976             }
977             audio_size += ret;
978             pkt.stream_index= ost->index;
979             pkt.data= audio_out;
980             pkt.size= ret;
981             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
982                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
983             pkt.flags |= AV_PKT_FLAG_KEY;
984             write_frame(s, &pkt, enc, ost->bitstream_filters);
985
986             ost->sync_opts += enc->frame_size;
987         }
988     } else {
989         AVPacket pkt;
990         av_init_packet(&pkt);
991
992         ost->sync_opts += size_out / (osize * enc->channels);
993
994         /* output a pcm frame */
995         /* determine the size of the coded buffer */
996         size_out /= osize;
997         if (coded_bps)
998             size_out = size_out*coded_bps/8;
999
1000         if(size_out > audio_out_size){
1001             fprintf(stderr, "Internal error, buffer size too small\n");
1002             ffmpeg_exit(1);
1003         }
1004
1005         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1006         ret = avcodec_encode_audio(enc, audio_out, size_out,
1007                                    (short *)buftmp);
1008         if (ret < 0) {
1009             fprintf(stderr, "Audio encoding failed\n");
1010             ffmpeg_exit(1);
1011         }
1012         audio_size += ret;
1013         pkt.stream_index= ost->index;
1014         pkt.data= audio_out;
1015         pkt.size= ret;
1016         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1017             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1018         pkt.flags |= AV_PKT_FLAG_KEY;
1019         write_frame(s, &pkt, enc, ost->bitstream_filters);
1020     }
1021 }
1022
1023 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1024 {
1025     AVCodecContext *dec;
1026     AVPicture *picture2;
1027     AVPicture picture_tmp;
1028     uint8_t *buf = 0;
1029
1030     dec = ist->st->codec;
1031
1032     /* deinterlace : must be done before any resize */
1033     if (do_deinterlace) {
1034         int size;
1035
1036         /* create temporary picture */
1037         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1038         buf = av_malloc(size);
1039         if (!buf)
1040             return;
1041
1042         picture2 = &picture_tmp;
1043         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1044
1045         if(avpicture_deinterlace(picture2, picture,
1046                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1047             /* if error, do not deinterlace */
1048             fprintf(stderr, "Deinterlacing failed\n");
1049             av_free(buf);
1050             buf = NULL;
1051             picture2 = picture;
1052         }
1053     } else {
1054         picture2 = picture;
1055     }
1056
1057     if (picture != picture2)
1058         *picture = *picture2;
1059     *bufp = buf;
1060 }
1061
1062 /* we begin to correct av delay at this threshold */
1063 #define AV_DELAY_MAX 0.100
1064
1065 static void do_subtitle_out(AVFormatContext *s,
1066                             OutputStream *ost,
1067                             InputStream *ist,
1068                             AVSubtitle *sub,
1069                             int64_t pts)
1070 {
1071     static uint8_t *subtitle_out = NULL;
1072     int subtitle_out_max_size = 1024 * 1024;
1073     int subtitle_out_size, nb, i;
1074     AVCodecContext *enc;
1075     AVPacket pkt;
1076
1077     if (pts == AV_NOPTS_VALUE) {
1078         fprintf(stderr, "Subtitle packets must have a pts\n");
1079         if (exit_on_error)
1080             ffmpeg_exit(1);
1081         return;
1082     }
1083
1084     enc = ost->st->codec;
1085
1086     if (!subtitle_out) {
1087         subtitle_out = av_malloc(subtitle_out_max_size);
1088     }
1089
1090     /* Note: DVB subtitle need one packet to draw them and one other
1091        packet to clear them */
1092     /* XXX: signal it in the codec context ? */
1093     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1094         nb = 2;
1095     else
1096         nb = 1;
1097
1098     for(i = 0; i < nb; i++) {
1099         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1100         // start_display_time is required to be 0
1101         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1102         sub->end_display_time -= sub->start_display_time;
1103         sub->start_display_time = 0;
1104         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1105                                                     subtitle_out_max_size, sub);
1106         if (subtitle_out_size < 0) {
1107             fprintf(stderr, "Subtitle encoding failed\n");
1108             ffmpeg_exit(1);
1109         }
1110
1111         av_init_packet(&pkt);
1112         pkt.stream_index = ost->index;
1113         pkt.data = subtitle_out;
1114         pkt.size = subtitle_out_size;
1115         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1116         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1117             /* XXX: the pts correction is handled here. Maybe handling
1118                it in the codec would be better */
1119             if (i == 0)
1120                 pkt.pts += 90 * sub->start_display_time;
1121             else
1122                 pkt.pts += 90 * sub->end_display_time;
1123         }
1124         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1125     }
1126 }
1127
1128 static int bit_buffer_size= 1024*256;
1129 static uint8_t *bit_buffer= NULL;
1130
1131 static void do_video_out(AVFormatContext *s,
1132                          OutputStream *ost,
1133                          InputStream *ist,
1134                          AVFrame *in_picture,
1135                          int *frame_size, float quality)
1136 {
1137     int nb_frames, i, ret, resample_changed;
1138     AVFrame *final_picture, *formatted_picture;
1139     AVCodecContext *enc, *dec;
1140     double sync_ipts;
1141
1142     enc = ost->st->codec;
1143     dec = ist->st->codec;
1144
1145     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1146
1147     /* by default, we output a single frame */
1148     nb_frames = 1;
1149
1150     *frame_size = 0;
1151
1152     if(video_sync_method){
1153         double vdelta = sync_ipts - ost->sync_opts;
1154         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155         if (vdelta < -1.1)
1156             nb_frames = 0;
1157         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1158             if(vdelta<=-0.6){
1159                 nb_frames=0;
1160             }else if(vdelta>0.6)
1161                 ost->sync_opts= lrintf(sync_ipts);
1162         }else if (vdelta > 1.1)
1163             nb_frames = lrintf(vdelta);
1164 //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);
1165         if (nb_frames == 0){
1166             ++nb_frames_drop;
1167             if (verbose>2)
1168                 fprintf(stderr, "*** drop!\n");
1169         }else if (nb_frames > 1) {
1170             nb_frames_dup += nb_frames - 1;
1171             if (verbose>2)
1172                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173         }
1174     }else
1175         ost->sync_opts= lrintf(sync_ipts);
1176
1177     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1178     if (nb_frames <= 0)
1179         return;
1180
1181     formatted_picture = in_picture;
1182     final_picture = formatted_picture;
1183
1184     resample_changed = ost->resample_width   != dec->width  ||
1185                        ost->resample_height  != dec->height ||
1186                        ost->resample_pix_fmt != dec->pix_fmt;
1187
1188     if (resample_changed) {
1189         av_log(NULL, AV_LOG_INFO,
1190                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1191                ist->file_index, ist->st->index,
1192                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1193                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1194         if(!ost->video_resample)
1195             ffmpeg_exit(1);
1196     }
1197
1198 #if !CONFIG_AVFILTER
1199     if (ost->video_resample) {
1200         final_picture = &ost->pict_tmp;
1201         if (resample_changed) {
1202             /* initialize a new scaler context */
1203             sws_freeContext(ost->img_resample_ctx);
1204             ost->img_resample_ctx = sws_getContext(
1205                 ist->st->codec->width,
1206                 ist->st->codec->height,
1207                 ist->st->codec->pix_fmt,
1208                 ost->st->codec->width,
1209                 ost->st->codec->height,
1210                 ost->st->codec->pix_fmt,
1211                 ost->sws_flags, NULL, NULL, NULL);
1212             if (ost->img_resample_ctx == NULL) {
1213                 fprintf(stderr, "Cannot get resampling context\n");
1214                 ffmpeg_exit(1);
1215             }
1216         }
1217         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1218               0, ost->resample_height, final_picture->data, final_picture->linesize);
1219     }
1220 #endif
1221
1222     /* duplicates frame if needed */
1223     for(i=0;i<nb_frames;i++) {
1224         AVPacket pkt;
1225         av_init_packet(&pkt);
1226         pkt.stream_index= ost->index;
1227
1228         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1229             /* raw pictures are written as AVPicture structure to
1230                avoid any copies. We support temorarily the older
1231                method. */
1232             AVFrame* old_frame = enc->coded_frame;
1233             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1234             pkt.data= (uint8_t *)final_picture;
1235             pkt.size=  sizeof(AVPicture);
1236             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1237             pkt.flags |= AV_PKT_FLAG_KEY;
1238
1239             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1240             enc->coded_frame = old_frame;
1241         } else {
1242             AVFrame big_picture;
1243
1244             big_picture= *final_picture;
1245             /* better than nothing: use input picture interlaced
1246                settings */
1247             big_picture.interlaced_frame = in_picture->interlaced_frame;
1248             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1249                 if(top_field_first == -1)
1250                     big_picture.top_field_first = in_picture->top_field_first;
1251                 else
1252                     big_picture.top_field_first = top_field_first;
1253             }
1254
1255             /* handles sameq here. This is not correct because it may
1256                not be a global option */
1257             big_picture.quality = quality;
1258             if(!me_threshold)
1259                 big_picture.pict_type = 0;
1260 //            big_picture.pts = AV_NOPTS_VALUE;
1261             big_picture.pts= ost->sync_opts;
1262 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1263 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1264             if (ost->forced_kf_index < ost->forced_kf_count &&
1265                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1266                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1267                 ost->forced_kf_index++;
1268             }
1269             ret = avcodec_encode_video(enc,
1270                                        bit_buffer, bit_buffer_size,
1271                                        &big_picture);
1272             if (ret < 0) {
1273                 fprintf(stderr, "Video encoding failed\n");
1274                 ffmpeg_exit(1);
1275             }
1276
1277             if(ret>0){
1278                 pkt.data= bit_buffer;
1279                 pkt.size= ret;
1280                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1281                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1282 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1283    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1284    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1285
1286                 if(enc->coded_frame->key_frame)
1287                     pkt.flags |= AV_PKT_FLAG_KEY;
1288                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1289                 *frame_size = ret;
1290                 video_size += ret;
1291                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1292                 //        enc->frame_number-1, ret, enc->pict_type);
1293                 /* if two pass, output log */
1294                 if (ost->logfile && enc->stats_out) {
1295                     fprintf(ost->logfile, "%s", enc->stats_out);
1296                 }
1297             }
1298         }
1299         ost->sync_opts++;
1300         ost->frame_number++;
1301     }
1302 }
1303
1304 static double psnr(double d){
1305     return -10.0*log(d)/log(10.0);
1306 }
1307
1308 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1309                            int frame_size)
1310 {
1311     AVCodecContext *enc;
1312     int frame_number;
1313     double ti1, bitrate, avg_bitrate;
1314
1315     /* this is executed just the first time do_video_stats is called */
1316     if (!vstats_file) {
1317         vstats_file = fopen(vstats_filename, "w");
1318         if (!vstats_file) {
1319             perror("fopen");
1320             ffmpeg_exit(1);
1321         }
1322     }
1323
1324     enc = ost->st->codec;
1325     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1326         frame_number = ost->frame_number;
1327         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1328         if (enc->flags&CODEC_FLAG_PSNR)
1329             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1330
1331         fprintf(vstats_file,"f_size= %6d ", frame_size);
1332         /* compute pts value */
1333         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1334         if (ti1 < 0.01)
1335             ti1 = 0.01;
1336
1337         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1338         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1339         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1340             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1341         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1342     }
1343 }
1344
1345 static void print_report(AVFormatContext **output_files,
1346                          OutputStream **ost_table, int nb_ostreams,
1347                          int is_last_report)
1348 {
1349     char buf[1024];
1350     OutputStream *ost;
1351     AVFormatContext *oc;
1352     int64_t total_size;
1353     AVCodecContext *enc;
1354     int frame_number, vid, i;
1355     double bitrate, ti1, pts;
1356     static int64_t last_time = -1;
1357     static int qp_histogram[52];
1358
1359     if (!is_last_report) {
1360         int64_t cur_time;
1361         /* display the report every 0.5 seconds */
1362         cur_time = av_gettime();
1363         if (last_time == -1) {
1364             last_time = cur_time;
1365             return;
1366         }
1367         if ((cur_time - last_time) < 500000)
1368             return;
1369         last_time = cur_time;
1370     }
1371
1372
1373     oc = output_files[0];
1374
1375     total_size = avio_size(oc->pb);
1376     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1377         total_size= avio_tell(oc->pb);
1378
1379     buf[0] = '\0';
1380     ti1 = 1e10;
1381     vid = 0;
1382     for(i=0;i<nb_ostreams;i++) {
1383         float q = -1;
1384         ost = ost_table[i];
1385         enc = ost->st->codec;
1386         if (!ost->st->stream_copy && enc->coded_frame)
1387             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1388         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1389             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1390         }
1391         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1392             float t = (av_gettime()-timer_start) / 1000000.0;
1393
1394             frame_number = ost->frame_number;
1395             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1396                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1397             if(is_last_report)
1398                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1399             if(qp_hist){
1400                 int j;
1401                 int qp = lrintf(q);
1402                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1403                     qp_histogram[qp]++;
1404                 for(j=0; j<32; j++)
1405                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1406             }
1407             if (enc->flags&CODEC_FLAG_PSNR){
1408                 int j;
1409                 double error, error_sum=0;
1410                 double scale, scale_sum=0;
1411                 char type[3]= {'Y','U','V'};
1412                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1413                 for(j=0; j<3; j++){
1414                     if(is_last_report){
1415                         error= enc->error[j];
1416                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1417                     }else{
1418                         error= enc->coded_frame->error[j];
1419                         scale= enc->width*enc->height*255.0*255.0;
1420                     }
1421                     if(j) scale/=4;
1422                     error_sum += error;
1423                     scale_sum += scale;
1424                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1425                 }
1426                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1427             }
1428             vid = 1;
1429         }
1430         /* compute min output value */
1431         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1432         if ((pts < ti1) && (pts > 0))
1433             ti1 = pts;
1434     }
1435     if (ti1 < 0.01)
1436         ti1 = 0.01;
1437
1438     if (verbose > 0 || is_last_report) {
1439         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1440
1441         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1442             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1443             (double)total_size / 1024, ti1, bitrate);
1444
1445         if (nb_frames_dup || nb_frames_drop)
1446           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1447                   nb_frames_dup, nb_frames_drop);
1448
1449         if (verbose >= 0)
1450             fprintf(stderr, "%s    \r", buf);
1451
1452         fflush(stderr);
1453     }
1454
1455     if (is_last_report && verbose >= 0){
1456         int64_t raw= audio_size + video_size + extra_size;
1457         fprintf(stderr, "\n");
1458         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1459                 video_size/1024.0,
1460                 audio_size/1024.0,
1461                 extra_size/1024.0,
1462                 100.0*(total_size - raw)/raw
1463         );
1464     }
1465 }
1466
1467 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1468 {
1469     int fill_char = 0x00;
1470     if (sample_fmt == AV_SAMPLE_FMT_U8)
1471         fill_char = 0x80;
1472     memset(buf, fill_char, size);
1473 }
1474
1475 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1476 static int output_packet(InputStream *ist, int ist_index,
1477                          OutputStream **ost_table, int nb_ostreams,
1478                          const AVPacket *pkt)
1479 {
1480     AVFormatContext *os;
1481     OutputStream *ost;
1482     int ret, i;
1483     int got_output;
1484     AVFrame picture;
1485     void *buffer_to_free = NULL;
1486     static unsigned int samples_size= 0;
1487     AVSubtitle subtitle, *subtitle_to_free;
1488     int64_t pkt_pts = AV_NOPTS_VALUE;
1489 #if CONFIG_AVFILTER
1490     int frame_available;
1491 #endif
1492     float quality;
1493
1494     AVPacket avpkt;
1495     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1496
1497     if(ist->next_pts == AV_NOPTS_VALUE)
1498         ist->next_pts= ist->pts;
1499
1500     if (pkt == NULL) {
1501         /* EOF handling */
1502         av_init_packet(&avpkt);
1503         avpkt.data = NULL;
1504         avpkt.size = 0;
1505         goto handle_eof;
1506     } else {
1507         avpkt = *pkt;
1508     }
1509
1510     if(pkt->dts != AV_NOPTS_VALUE)
1511         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1512     if(pkt->pts != AV_NOPTS_VALUE)
1513         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1514
1515     //while we have more to decode or while the decoder did output something on EOF
1516     while (avpkt.size > 0 || (!pkt && got_output)) {
1517         uint8_t *data_buf, *decoded_data_buf;
1518         int data_size, decoded_data_size;
1519     handle_eof:
1520         ist->pts= ist->next_pts;
1521
1522         if(avpkt.size && avpkt.size != pkt->size &&
1523            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1524             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1525             ist->showed_multi_packet_warning=1;
1526         }
1527
1528         /* decode the packet if needed */
1529         decoded_data_buf = NULL; /* fail safe */
1530         decoded_data_size= 0;
1531         data_buf  = avpkt.data;
1532         data_size = avpkt.size;
1533         subtitle_to_free = NULL;
1534         if (ist->decoding_needed) {
1535             switch(ist->st->codec->codec_type) {
1536             case AVMEDIA_TYPE_AUDIO:{
1537                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1538                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1539                     av_free(samples);
1540                     samples= av_malloc(samples_size);
1541                 }
1542                 decoded_data_size= samples_size;
1543                     /* XXX: could avoid copy if PCM 16 bits with same
1544                        endianness as CPU */
1545                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1546                                             &avpkt);
1547                 if (ret < 0)
1548                     return ret;
1549                 avpkt.data += ret;
1550                 avpkt.size -= ret;
1551                 data_size   = ret;
1552                 got_output  = decoded_data_size > 0;
1553                 /* Some bug in mpeg audio decoder gives */
1554                 /* decoded_data_size < 0, it seems they are overflows */
1555                 if (!got_output) {
1556                     /* no audio frame */
1557                     continue;
1558                 }
1559                 decoded_data_buf = (uint8_t *)samples;
1560                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1561                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1562                 break;}
1563             case AVMEDIA_TYPE_VIDEO:
1564                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1565                     /* XXX: allocate picture correctly */
1566                     avcodec_get_frame_defaults(&picture);
1567                     avpkt.pts = pkt_pts;
1568                     avpkt.dts = ist->pts;
1569                     pkt_pts = AV_NOPTS_VALUE;
1570
1571                     ret = avcodec_decode_video2(ist->st->codec,
1572                                                 &picture, &got_output, &avpkt);
1573                     quality = same_quality ? picture.quality : 0;
1574                     if (ret < 0)
1575                         return ret;
1576                     if (!got_output) {
1577                         /* no picture yet */
1578                         goto discard_packet;
1579                     }
1580                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1581                     if (ist->st->codec->time_base.num != 0) {
1582                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1583                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1584                                           ist->st->codec->time_base.num * ticks) /
1585                             ist->st->codec->time_base.den;
1586                     }
1587                     avpkt.size = 0;
1588                     buffer_to_free = NULL;
1589                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1590                     break;
1591             case AVMEDIA_TYPE_SUBTITLE:
1592                 ret = avcodec_decode_subtitle2(ist->st->codec,
1593                                                &subtitle, &got_output, &avpkt);
1594                 if (ret < 0)
1595                     return ret;
1596                 if (!got_output) {
1597                     goto discard_packet;
1598                 }
1599                 subtitle_to_free = &subtitle;
1600                 avpkt.size = 0;
1601                 break;
1602             default:
1603                 return -1;
1604             }
1605         } else {
1606             switch(ist->st->codec->codec_type) {
1607             case AVMEDIA_TYPE_AUDIO:
1608                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1609                     ist->st->codec->sample_rate;
1610                 break;
1611             case AVMEDIA_TYPE_VIDEO:
1612                 if (ist->st->codec->time_base.num != 0) {
1613                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1614                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1615                                       ist->st->codec->time_base.num * ticks) /
1616                         ist->st->codec->time_base.den;
1617                 }
1618                 break;
1619             }
1620             ret = avpkt.size;
1621             avpkt.size = 0;
1622         }
1623
1624 #if CONFIG_AVFILTER
1625         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1626             for (i = 0; i < nb_ostreams; i++) {
1627                 ost = ost_table[i];
1628                 if (ost->input_video_filter && ost->source_index == ist_index) {
1629                     AVRational sar;
1630                     if (ist->st->sample_aspect_ratio.num)
1631                         sar = ist->st->sample_aspect_ratio;
1632                     else
1633                         sar = ist->st->codec->sample_aspect_ratio;
1634                     // add it to be filtered
1635                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1636                                              ist->pts,
1637                                              sar);
1638                 }
1639             }
1640         }
1641 #endif
1642
1643         // preprocess audio (volume)
1644         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1645             if (audio_volume != 256) {
1646                 short *volp;
1647                 volp = samples;
1648                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1649                     int v = ((*volp) * audio_volume + 128) >> 8;
1650                     if (v < -32768) v = -32768;
1651                     if (v >  32767) v = 32767;
1652                     *volp++ = v;
1653                 }
1654             }
1655         }
1656
1657         /* frame rate emulation */
1658         if (rate_emu) {
1659             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1660             int64_t now = av_gettime() - ist->start;
1661             if (pts > now)
1662                 usleep(pts - now);
1663         }
1664         /* if output time reached then transcode raw format,
1665            encode packets and output them */
1666         if (start_time == 0 || ist->pts >= start_time)
1667             for(i=0;i<nb_ostreams;i++) {
1668                 int frame_size;
1669
1670                 ost = ost_table[i];
1671                 if (ost->source_index == ist_index) {
1672 #if CONFIG_AVFILTER
1673                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1674                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1675                 while (frame_available) {
1676                     AVRational ist_pts_tb;
1677                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1678                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1679                     if (ost->picref)
1680                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1681 #endif
1682                     os = output_files[ost->file_index];
1683
1684                     /* set the input output pts pairs */
1685                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1686
1687                     if (ost->encoding_needed) {
1688                         av_assert0(ist->decoding_needed);
1689                         switch(ost->st->codec->codec_type) {
1690                         case AVMEDIA_TYPE_AUDIO:
1691                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1692                             break;
1693                         case AVMEDIA_TYPE_VIDEO:
1694 #if CONFIG_AVFILTER
1695                             if (ost->picref->video && !ost->frame_aspect_ratio)
1696                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1697 #endif
1698                             do_video_out(os, ost, ist, &picture, &frame_size,
1699                                          same_quality ? quality : ost->st->codec->global_quality);
1700                             if (vstats_filename && frame_size)
1701                                 do_video_stats(os, ost, frame_size);
1702                             break;
1703                         case AVMEDIA_TYPE_SUBTITLE:
1704                             do_subtitle_out(os, ost, ist, &subtitle,
1705                                             pkt->pts);
1706                             break;
1707                         default:
1708                             abort();
1709                         }
1710                     } else {
1711                         AVFrame avframe; //FIXME/XXX remove this
1712                         AVPacket opkt;
1713                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1714
1715                         av_init_packet(&opkt);
1716
1717                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1718 #if !CONFIG_AVFILTER
1719                             continue;
1720 #else
1721                             goto cont;
1722 #endif
1723
1724                         /* no reencoding needed : output the packet directly */
1725                         /* force the input stream PTS */
1726
1727                         avcodec_get_frame_defaults(&avframe);
1728                         ost->st->codec->coded_frame= &avframe;
1729                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1730
1731                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1732                             audio_size += data_size;
1733                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1734                             video_size += data_size;
1735                             ost->sync_opts++;
1736                         }
1737
1738                         opkt.stream_index= ost->index;
1739                         if(pkt->pts != AV_NOPTS_VALUE)
1740                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1741                         else
1742                             opkt.pts= AV_NOPTS_VALUE;
1743
1744                         if (pkt->dts == AV_NOPTS_VALUE)
1745                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1746                         else
1747                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1748                         opkt.dts -= ost_tb_start_time;
1749
1750                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1751                         opkt.flags= pkt->flags;
1752
1753                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1754                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1755                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1756                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1757                            ) {
1758                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1759                                 opkt.destruct= av_destruct_packet;
1760                         } else {
1761                             opkt.data = data_buf;
1762                             opkt.size = data_size;
1763                         }
1764
1765                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1766                         ost->st->codec->frame_number++;
1767                         ost->frame_number++;
1768                         av_free_packet(&opkt);
1769                     }
1770 #if CONFIG_AVFILTER
1771                     cont:
1772                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1773                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1774                     if (ost->picref)
1775                         avfilter_unref_buffer(ost->picref);
1776                 }
1777 #endif
1778                 }
1779             }
1780
1781         av_free(buffer_to_free);
1782         /* XXX: allocate the subtitles in the codec ? */
1783         if (subtitle_to_free) {
1784             avsubtitle_free(subtitle_to_free);
1785             subtitle_to_free = NULL;
1786         }
1787     }
1788  discard_packet:
1789     if (pkt == NULL) {
1790         /* EOF handling */
1791
1792         for(i=0;i<nb_ostreams;i++) {
1793             ost = ost_table[i];
1794             if (ost->source_index == ist_index) {
1795                 AVCodecContext *enc= ost->st->codec;
1796                 os = output_files[ost->file_index];
1797
1798                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1799                     continue;
1800                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1801                     continue;
1802
1803                 if (ost->encoding_needed) {
1804                     for(;;) {
1805                         AVPacket pkt;
1806                         int fifo_bytes;
1807                         av_init_packet(&pkt);
1808                         pkt.stream_index= ost->index;
1809
1810                         switch(ost->st->codec->codec_type) {
1811                         case AVMEDIA_TYPE_AUDIO:
1812                             fifo_bytes = av_fifo_size(ost->fifo);
1813                             ret = 0;
1814                             /* encode any samples remaining in fifo */
1815                             if (fifo_bytes > 0) {
1816                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1817                                 int fs_tmp = enc->frame_size;
1818
1819                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1820                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1821                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1822                                 } else { /* pad */
1823                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1824                                     if (allocated_audio_buf_size < frame_bytes)
1825                                         ffmpeg_exit(1);
1826                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1827                                 }
1828
1829                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1830                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1831                                                           ost->st->time_base.num, enc->sample_rate);
1832                                 enc->frame_size = fs_tmp;
1833                             }
1834                             if(ret <= 0) {
1835                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1836                             }
1837                             if (ret < 0) {
1838                                 fprintf(stderr, "Audio encoding failed\n");
1839                                 ffmpeg_exit(1);
1840                             }
1841                             audio_size += ret;
1842                             pkt.flags |= AV_PKT_FLAG_KEY;
1843                             break;
1844                         case AVMEDIA_TYPE_VIDEO:
1845                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1846                             if (ret < 0) {
1847                                 fprintf(stderr, "Video encoding failed\n");
1848                                 ffmpeg_exit(1);
1849                             }
1850                             video_size += ret;
1851                             if(enc->coded_frame && enc->coded_frame->key_frame)
1852                                 pkt.flags |= AV_PKT_FLAG_KEY;
1853                             if (ost->logfile && enc->stats_out) {
1854                                 fprintf(ost->logfile, "%s", enc->stats_out);
1855                             }
1856                             break;
1857                         default:
1858                             ret=-1;
1859                         }
1860
1861                         if(ret<=0)
1862                             break;
1863                         pkt.data= bit_buffer;
1864                         pkt.size= ret;
1865                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1866                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1867                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1868                     }
1869                 }
1870             }
1871         }
1872     }
1873
1874     return 0;
1875 }
1876
1877 static void print_sdp(AVFormatContext **avc, int n)
1878 {
1879     char sdp[2048];
1880
1881     av_sdp_create(avc, n, sdp, sizeof(sdp));
1882     printf("SDP:\n%s\n", sdp);
1883     fflush(stdout);
1884 }
1885
1886 static int copy_chapters(int infile, int outfile)
1887 {
1888     AVFormatContext *is = input_files[infile].ctx;
1889     AVFormatContext *os = output_files[outfile];
1890     int i;
1891
1892     for (i = 0; i < is->nb_chapters; i++) {
1893         AVChapter *in_ch = is->chapters[i], *out_ch;
1894         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1895                                       AV_TIME_BASE_Q, in_ch->time_base);
1896         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1897                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1898
1899
1900         if (in_ch->end < ts_off)
1901             continue;
1902         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1903             break;
1904
1905         out_ch = av_mallocz(sizeof(AVChapter));
1906         if (!out_ch)
1907             return AVERROR(ENOMEM);
1908
1909         out_ch->id        = in_ch->id;
1910         out_ch->time_base = in_ch->time_base;
1911         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1912         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1913
1914         if (metadata_chapters_autocopy)
1915             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1916
1917         os->nb_chapters++;
1918         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1919         if (!os->chapters)
1920             return AVERROR(ENOMEM);
1921         os->chapters[os->nb_chapters - 1] = out_ch;
1922     }
1923     return 0;
1924 }
1925
1926 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1927                                     AVCodecContext *avctx)
1928 {
1929     char *p;
1930     int n = 1, i;
1931     int64_t t;
1932
1933     for (p = kf; *p; p++)
1934         if (*p == ',')
1935             n++;
1936     ost->forced_kf_count = n;
1937     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1938     if (!ost->forced_kf_pts) {
1939         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1940         ffmpeg_exit(1);
1941     }
1942     for (i = 0; i < n; i++) {
1943         p = i ? strchr(p, ',') + 1 : kf;
1944         t = parse_time_or_die("force_key_frames", p, 1);
1945         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1946     }
1947 }
1948
1949 /*
1950  * The following code is the main loop of the file converter
1951  */
1952 static int transcode(AVFormatContext **output_files,
1953                      int nb_output_files,
1954                      InputFile *input_files,
1955                      int nb_input_files,
1956                      StreamMap *stream_maps, int nb_stream_maps)
1957 {
1958     int ret = 0, i, j, k, n, nb_ostreams = 0;
1959     AVFormatContext *is, *os;
1960     AVCodecContext *codec, *icodec;
1961     OutputStream *ost, **ost_table = NULL;
1962     InputStream *ist;
1963     char error[1024];
1964     int want_sdp = 1;
1965     uint8_t no_packet[MAX_FILES]={0};
1966     int no_packet_count=0;
1967
1968     if (rate_emu)
1969         for (i = 0; i < nb_input_streams; i++)
1970             input_streams[i].start = av_gettime();
1971
1972     /* output stream init */
1973     nb_ostreams = 0;
1974     for(i=0;i<nb_output_files;i++) {
1975         os = output_files[i];
1976         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1977             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1978             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1979             ret = AVERROR(EINVAL);
1980             goto fail;
1981         }
1982         nb_ostreams += os->nb_streams;
1983     }
1984     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1985         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1986         ret = AVERROR(EINVAL);
1987         goto fail;
1988     }
1989
1990     /* Sanity check the mapping args -- do the input files & streams exist? */
1991     for(i=0;i<nb_stream_maps;i++) {
1992         int fi = stream_maps[i].file_index;
1993         int si = stream_maps[i].stream_index;
1994
1995         if (fi < 0 || fi > nb_input_files - 1 ||
1996             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1997             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1998             ret = AVERROR(EINVAL);
1999             goto fail;
2000         }
2001         fi = stream_maps[i].sync_file_index;
2002         si = stream_maps[i].sync_stream_index;
2003         if (fi < 0 || fi > nb_input_files - 1 ||
2004             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
2005             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2006             ret = AVERROR(EINVAL);
2007             goto fail;
2008         }
2009     }
2010
2011     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
2012     if (!ost_table)
2013         goto fail;
2014     n = 0;
2015     for(k=0;k<nb_output_files;k++) {
2016         os = output_files[k];
2017         for(i=0;i<os->nb_streams;i++,n++) {
2018             int found;
2019             ost = ost_table[n] = output_streams_for_file[k][i];
2020             if (nb_stream_maps > 0) {
2021                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2022                     stream_maps[n].stream_index;
2023
2024                 /* Sanity check that the stream types match */
2025                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2026                     int i= ost->file_index;
2027                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2028                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2029                         stream_maps[n].file_index, stream_maps[n].stream_index,
2030                         ost->file_index, ost->index);
2031                     ffmpeg_exit(1);
2032                 }
2033
2034             } else {
2035                 int best_nb_frames=-1;
2036                 /* get corresponding input stream index : we select the first one with the right type */
2037                 found = 0;
2038                 for (j = 0; j < nb_input_streams; j++) {
2039                     int skip=0;
2040                     ist = &input_streams[j];
2041                     if(opt_programid){
2042                         int pi,si;
2043                         AVFormatContext *f = input_files[ist->file_index].ctx;
2044                         skip=1;
2045                         for(pi=0; pi<f->nb_programs; pi++){
2046                             AVProgram *p= f->programs[pi];
2047                             if(p->id == opt_programid)
2048                                 for(si=0; si<p->nb_stream_indexes; si++){
2049                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2050                                         skip=0;
2051                                 }
2052                         }
2053                     }
2054                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2055                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2056                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2057                             best_nb_frames= ist->st->codec_info_nb_frames;
2058                             ost->source_index = j;
2059                             found = 1;
2060                         }
2061                     }
2062                 }
2063
2064                 if (!found) {
2065                     if(! opt_programid) {
2066                         /* try again and reuse existing stream */
2067                         for (j = 0; j < nb_input_streams; j++) {
2068                             ist = &input_streams[j];
2069                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2070                                 && ist->st->discard != AVDISCARD_ALL) {
2071                                 ost->source_index = j;
2072                                 found = 1;
2073                             }
2074                         }
2075                     }
2076                     if (!found) {
2077                         int i= ost->file_index;
2078                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2079                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2080                                 ost->file_index, ost->index);
2081                         ffmpeg_exit(1);
2082                     }
2083                 }
2084             }
2085             ist = &input_streams[ost->source_index];
2086             ist->discard = 0;
2087             ost->sync_ist = (nb_stream_maps > 0) ?
2088                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2089                          stream_maps[n].sync_stream_index] : ist;
2090         }
2091     }
2092
2093     /* for each output stream, we compute the right encoding parameters */
2094     for(i=0;i<nb_ostreams;i++) {
2095         ost = ost_table[i];
2096         os = output_files[ost->file_index];
2097         ist = &input_streams[ost->source_index];
2098
2099         codec = ost->st->codec;
2100         icodec = ist->st->codec;
2101
2102         if (metadata_streams_autocopy)
2103             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2104                          AV_DICT_DONT_OVERWRITE);
2105
2106         ost->st->disposition = ist->st->disposition;
2107         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2108         codec->chroma_sample_location = icodec->chroma_sample_location;
2109
2110         if (ost->st->stream_copy) {
2111             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2112
2113             if (extra_size > INT_MAX)
2114                 goto fail;
2115
2116             /* if stream_copy is selected, no need to decode or encode */
2117             codec->codec_id = icodec->codec_id;
2118             codec->codec_type = icodec->codec_type;
2119
2120             if(!codec->codec_tag){
2121                 if(   !os->oformat->codec_tag
2122                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2123                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2124                     codec->codec_tag = icodec->codec_tag;
2125             }
2126
2127             codec->bit_rate = icodec->bit_rate;
2128             codec->rc_max_rate    = icodec->rc_max_rate;
2129             codec->rc_buffer_size = icodec->rc_buffer_size;
2130             codec->extradata= av_mallocz(extra_size);
2131             if (!codec->extradata)
2132                 goto fail;
2133             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2134             codec->extradata_size= icodec->extradata_size;
2135             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){
2136                 codec->time_base = icodec->time_base;
2137                 codec->time_base.num *= icodec->ticks_per_frame;
2138                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2139                           codec->time_base.num, codec->time_base.den, INT_MAX);
2140             }else
2141                 codec->time_base = ist->st->time_base;
2142             switch(codec->codec_type) {
2143             case AVMEDIA_TYPE_AUDIO:
2144                 if(audio_volume != 256) {
2145                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2146                     ffmpeg_exit(1);
2147                 }
2148                 codec->channel_layout = icodec->channel_layout;
2149                 codec->sample_rate = icodec->sample_rate;
2150                 codec->channels = icodec->channels;
2151                 codec->frame_size = icodec->frame_size;
2152                 codec->audio_service_type = icodec->audio_service_type;
2153                 codec->block_align= icodec->block_align;
2154                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2155                     codec->block_align= 0;
2156                 if(codec->codec_id == CODEC_ID_AC3)
2157                     codec->block_align= 0;
2158                 break;
2159             case AVMEDIA_TYPE_VIDEO:
2160                 codec->pix_fmt = icodec->pix_fmt;
2161                 codec->width = icodec->width;
2162                 codec->height = icodec->height;
2163                 codec->has_b_frames = icodec->has_b_frames;
2164                 if (!codec->sample_aspect_ratio.num) {
2165                     codec->sample_aspect_ratio =
2166                     ost->st->sample_aspect_ratio =
2167                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2168                         ist->st->codec->sample_aspect_ratio.num ?
2169                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2170                 }
2171                 break;
2172             case AVMEDIA_TYPE_SUBTITLE:
2173                 codec->width = icodec->width;
2174                 codec->height = icodec->height;
2175                 break;
2176             case AVMEDIA_TYPE_DATA:
2177                 break;
2178             default:
2179                 abort();
2180             }
2181         } else {
2182             if (!ost->enc)
2183                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2184             switch(codec->codec_type) {
2185             case AVMEDIA_TYPE_AUDIO:
2186                 ost->fifo= av_fifo_alloc(1024);
2187                 if(!ost->fifo)
2188                     goto fail;
2189                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2190                 if (!codec->sample_rate) {
2191                     codec->sample_rate = icodec->sample_rate;
2192                     if (icodec->lowres)
2193                         codec->sample_rate >>= icodec->lowres;
2194                 }
2195                 choose_sample_rate(ost->st, ost->enc);
2196                 codec->time_base = (AVRational){1, codec->sample_rate};
2197                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2198                     codec->sample_fmt = icodec->sample_fmt;
2199                 choose_sample_fmt(ost->st, ost->enc);
2200                 if (!codec->channels)
2201                     codec->channels = icodec->channels;
2202                 codec->channel_layout = icodec->channel_layout;
2203                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2204                     codec->channel_layout = 0;
2205                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2206                 icodec->request_channels = codec->channels;
2207                 ist->decoding_needed = 1;
2208                 ost->encoding_needed = 1;
2209                 ost->resample_sample_fmt  = icodec->sample_fmt;
2210                 ost->resample_sample_rate = icodec->sample_rate;
2211                 ost->resample_channels    = icodec->channels;
2212                 break;
2213             case AVMEDIA_TYPE_VIDEO:
2214                 if (codec->pix_fmt == PIX_FMT_NONE)
2215                     codec->pix_fmt = icodec->pix_fmt;
2216                 choose_pixel_fmt(ost->st, ost->enc);
2217
2218                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2219                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2220                     ffmpeg_exit(1);
2221                 }
2222                 ost->video_resample = codec->width   != icodec->width  ||
2223                                       codec->height  != icodec->height ||
2224                                       codec->pix_fmt != icodec->pix_fmt;
2225                 if (ost->video_resample) {
2226 #if !CONFIG_AVFILTER
2227                     avcodec_get_frame_defaults(&ost->pict_tmp);
2228                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2229                                          codec->width, codec->height)) {
2230                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2231                         ffmpeg_exit(1);
2232                     }
2233                     ost->img_resample_ctx = sws_getContext(
2234                         icodec->width,
2235                         icodec->height,
2236                             icodec->pix_fmt,
2237                             codec->width,
2238                             codec->height,
2239                             codec->pix_fmt,
2240                             ost->sws_flags, NULL, NULL, NULL);
2241                     if (ost->img_resample_ctx == NULL) {
2242                         fprintf(stderr, "Cannot get resampling context\n");
2243                         ffmpeg_exit(1);
2244                     }
2245 #endif
2246                     codec->bits_per_raw_sample= 0;
2247                 }
2248                 if (!codec->width || !codec->height) {
2249                     codec->width  = icodec->width;
2250                     codec->height = icodec->height;
2251                 }
2252                 ost->resample_height = icodec->height;
2253                 ost->resample_width  = icodec->width;
2254                 ost->resample_pix_fmt= icodec->pix_fmt;
2255                 ost->encoding_needed = 1;
2256                 ist->decoding_needed = 1;
2257
2258                 if (!ost->frame_rate.num)
2259                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2260                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2261                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2262                     ost->frame_rate = ost->enc->supported_framerates[idx];
2263                 }
2264                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2265
2266 #if CONFIG_AVFILTER
2267                 if (configure_video_filters(ist, ost)) {
2268                     fprintf(stderr, "Error opening filters!\n");
2269                     exit(1);
2270                 }
2271 #endif
2272                 break;
2273             case AVMEDIA_TYPE_SUBTITLE:
2274                 ost->encoding_needed = 1;
2275                 ist->decoding_needed = 1;
2276                 break;
2277             default:
2278                 abort();
2279                 break;
2280             }
2281             /* two pass mode */
2282             if (ost->encoding_needed &&
2283                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2284                 char logfilename[1024];
2285                 FILE *f;
2286
2287                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2288                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2289                          i);
2290                 if (codec->flags & CODEC_FLAG_PASS1) {
2291                     f = fopen(logfilename, "wb");
2292                     if (!f) {
2293                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2294                         ffmpeg_exit(1);
2295                     }
2296                     ost->logfile = f;
2297                 } else {
2298                     char  *logbuffer;
2299                     size_t logbuffer_size;
2300                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2301                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2302                         ffmpeg_exit(1);
2303                     }
2304                     codec->stats_in = logbuffer;
2305                 }
2306             }
2307         }
2308         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2309             int size= codec->width * codec->height;
2310             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2311         }
2312     }
2313
2314     if (!bit_buffer)
2315         bit_buffer = av_malloc(bit_buffer_size);
2316     if (!bit_buffer) {
2317         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2318                 bit_buffer_size);
2319         ret = AVERROR(ENOMEM);
2320         goto fail;
2321     }
2322
2323     /* open each encoder */
2324     for(i=0;i<nb_ostreams;i++) {
2325         ost = ost_table[i];
2326         if (ost->encoding_needed) {
2327             AVCodec *codec = ost->enc;
2328             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2329             if (!codec) {
2330                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2331                          ost->st->codec->codec_id, ost->file_index, ost->index);
2332                 ret = AVERROR(EINVAL);
2333                 goto dump_format;
2334             }
2335             if (dec->subtitle_header) {
2336                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2337                 if (!ost->st->codec->subtitle_header) {
2338                     ret = AVERROR(ENOMEM);
2339                     goto dump_format;
2340                 }
2341                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2342                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2343             }
2344             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2345                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2346                         ost->file_index, ost->index);
2347                 ret = AVERROR(EINVAL);
2348                 goto dump_format;
2349             }
2350             assert_codec_experimental(ost->st->codec, 1);
2351             assert_avoptions(ost->opts);
2352             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2353                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2354                                              "It takes bits/s as argument, not kbits/s\n");
2355             extra_size += ost->st->codec->extradata_size;
2356         }
2357     }
2358
2359     /* open each decoder */
2360     for (i = 0; i < nb_input_streams; i++) {
2361         ist = &input_streams[i];
2362         if (ist->decoding_needed) {
2363             AVCodec *codec = ist->dec;
2364             if (!codec)
2365                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2366             if (!codec) {
2367                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2368                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2369                 ret = AVERROR(EINVAL);
2370                 goto dump_format;
2371             }
2372
2373             /* update requested sample format for the decoder based on the
2374                corresponding encoder sample format */
2375             for (j = 0; j < nb_ostreams; j++) {
2376                 ost = ost_table[j];
2377                 if (ost->source_index == i) {
2378                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2379                     break;
2380                 }
2381             }
2382
2383             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2384                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2385                         ist->file_index, ist->st->index);
2386                 ret = AVERROR(EINVAL);
2387                 goto dump_format;
2388             }
2389             assert_codec_experimental(ist->st->codec, 0);
2390             assert_avoptions(ost->opts);
2391             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2392             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2393         }
2394     }
2395
2396     /* init pts */
2397     for (i = 0; i < nb_input_streams; i++) {
2398         AVStream *st;
2399         ist = &input_streams[i];
2400         st= ist->st;
2401         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2402         ist->next_pts = AV_NOPTS_VALUE;
2403         init_pts_correction(&ist->pts_ctx);
2404         ist->is_start = 1;
2405     }
2406
2407     /* set meta data information from input file if required */
2408     for (i=0;i<nb_meta_data_maps;i++) {
2409         AVFormatContext *files[2];
2410         AVDictionary    **meta[2];
2411         int j;
2412
2413 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2414         if ((index) < 0 || (index) >= (nb_elems)) {\
2415             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2416                      (desc), (index));\
2417             ret = AVERROR(EINVAL);\
2418             goto dump_format;\
2419         }
2420
2421         int out_file_index = meta_data_maps[i][0].file;
2422         int in_file_index = meta_data_maps[i][1].file;
2423         if (in_file_index < 0 || out_file_index < 0)
2424             continue;
2425         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2426         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2427
2428         files[0] = output_files[out_file_index];
2429         files[1] = input_files[in_file_index].ctx;
2430
2431         for (j = 0; j < 2; j++) {
2432             MetadataMap *map = &meta_data_maps[i][j];
2433
2434             switch (map->type) {
2435             case 'g':
2436                 meta[j] = &files[j]->metadata;
2437                 break;
2438             case 's':
2439                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2440                 meta[j] = &files[j]->streams[map->index]->metadata;
2441                 break;
2442             case 'c':
2443                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2444                 meta[j] = &files[j]->chapters[map->index]->metadata;
2445                 break;
2446             case 'p':
2447                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2448                 meta[j] = &files[j]->programs[map->index]->metadata;
2449                 break;
2450             }
2451         }
2452
2453         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2454     }
2455
2456     /* copy global metadata by default */
2457     if (metadata_global_autocopy) {
2458
2459         for (i = 0; i < nb_output_files; i++)
2460             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2461                          AV_DICT_DONT_OVERWRITE);
2462     }
2463
2464     /* copy chapters according to chapter maps */
2465     for (i = 0; i < nb_chapter_maps; i++) {
2466         int infile  = chapter_maps[i].in_file;
2467         int outfile = chapter_maps[i].out_file;
2468
2469         if (infile < 0 || outfile < 0)
2470             continue;
2471         if (infile >= nb_input_files) {
2472             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2473             ret = AVERROR(EINVAL);
2474             goto dump_format;
2475         }
2476         if (outfile >= nb_output_files) {
2477             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2478             ret = AVERROR(EINVAL);
2479             goto dump_format;
2480         }
2481         copy_chapters(infile, outfile);
2482     }
2483
2484     /* copy chapters from the first input file that has them*/
2485     if (!nb_chapter_maps)
2486         for (i = 0; i < nb_input_files; i++) {
2487             if (!input_files[i].ctx->nb_chapters)
2488                 continue;
2489
2490             for (j = 0; j < nb_output_files; j++)
2491                 if ((ret = copy_chapters(i, j)) < 0)
2492                     goto dump_format;
2493             break;
2494         }
2495
2496     /* open files and write file headers */
2497     for(i=0;i<nb_output_files;i++) {
2498         os = output_files[i];
2499         if (avformat_write_header(os, &output_opts[i]) < 0) {
2500             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2501             ret = AVERROR(EINVAL);
2502             goto dump_format;
2503         }
2504         assert_avoptions(output_opts[i]);
2505         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2506             want_sdp = 0;
2507         }
2508     }
2509
2510  dump_format:
2511     /* dump the file output parameters - cannot be done before in case
2512        of stream copy */
2513     for(i=0;i<nb_output_files;i++) {
2514         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2515     }
2516
2517     /* dump the stream mapping */
2518     if (verbose >= 0) {
2519         fprintf(stderr, "Stream mapping:\n");
2520         for(i=0;i<nb_ostreams;i++) {
2521             ost = ost_table[i];
2522             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2523                     input_streams[ost->source_index].file_index,
2524                     input_streams[ost->source_index].st->index,
2525                     ost->file_index,
2526                     ost->index);
2527             if (ost->sync_ist != &input_streams[ost->source_index])
2528                 fprintf(stderr, " [sync #%d.%d]",
2529                         ost->sync_ist->file_index,
2530                         ost->sync_ist->st->index);
2531             fprintf(stderr, "\n");
2532         }
2533     }
2534
2535     if (ret) {
2536         fprintf(stderr, "%s\n", error);
2537         goto fail;
2538     }
2539
2540     if (want_sdp) {
2541         print_sdp(output_files, nb_output_files);
2542     }
2543
2544     if (verbose >= 0)
2545         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2546     term_init();
2547
2548     timer_start = av_gettime();
2549
2550     for(; received_sigterm == 0;) {
2551         int file_index, ist_index;
2552         AVPacket pkt;
2553         double ipts_min;
2554         double opts_min;
2555
2556     redo:
2557         ipts_min= 1e100;
2558         opts_min= 1e100;
2559
2560         /* select the stream that we must read now by looking at the
2561            smallest output pts */
2562         file_index = -1;
2563         for(i=0;i<nb_ostreams;i++) {
2564             double ipts, opts;
2565             ost = ost_table[i];
2566             os = output_files[ost->file_index];
2567             ist = &input_streams[ost->source_index];
2568             if(ist->is_past_recording_time || no_packet[ist->file_index])
2569                 continue;
2570                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2571             ipts = (double)ist->pts;
2572             if (!input_files[ist->file_index].eof_reached){
2573                 if(ipts < ipts_min) {
2574                     ipts_min = ipts;
2575                     if(input_sync ) file_index = ist->file_index;
2576                 }
2577                 if(opts < opts_min) {
2578                     opts_min = opts;
2579                     if(!input_sync) file_index = ist->file_index;
2580                 }
2581             }
2582             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2583                 file_index= -1;
2584                 break;
2585             }
2586         }
2587         /* if none, if is finished */
2588         if (file_index < 0) {
2589             if(no_packet_count){
2590                 no_packet_count=0;
2591                 memset(no_packet, 0, sizeof(no_packet));
2592                 usleep(10000);
2593                 continue;
2594             }
2595             break;
2596         }
2597
2598         /* finish if limit size exhausted */
2599         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2600             break;
2601
2602         /* read a frame from it and output it in the fifo */
2603         is = input_files[file_index].ctx;
2604         ret= av_read_frame(is, &pkt);
2605         if(ret == AVERROR(EAGAIN)){
2606             no_packet[file_index]=1;
2607             no_packet_count++;
2608             continue;
2609         }
2610         if (ret < 0) {
2611             input_files[file_index].eof_reached = 1;
2612             if (opt_shortest)
2613                 break;
2614             else
2615                 continue;
2616         }
2617
2618         no_packet_count=0;
2619         memset(no_packet, 0, sizeof(no_packet));
2620
2621         if (do_pkt_dump) {
2622             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2623                              is->streams[pkt.stream_index]);
2624         }
2625         /* the following test is needed in case new streams appear
2626            dynamically in stream : we ignore them */
2627         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2628             goto discard_packet;
2629         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2630         ist = &input_streams[ist_index];
2631         if (ist->discard)
2632             goto discard_packet;
2633
2634         if (pkt.dts != AV_NOPTS_VALUE)
2635             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2636         if (pkt.pts != AV_NOPTS_VALUE)
2637             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2638
2639         if (ist->ts_scale) {
2640             if(pkt.pts != AV_NOPTS_VALUE)
2641                 pkt.pts *= ist->ts_scale;
2642             if(pkt.dts != AV_NOPTS_VALUE)
2643                 pkt.dts *= ist->ts_scale;
2644         }
2645
2646 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2647         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2648             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2649             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2650             int64_t delta= pkt_dts - ist->next_pts;
2651             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2652                 input_files[ist->file_index].ts_offset -= delta;
2653                 if (verbose > 2)
2654                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2655                             delta, input_files[ist->file_index].ts_offset);
2656                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2657                 if(pkt.pts != AV_NOPTS_VALUE)
2658                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2659             }
2660         }
2661
2662         /* finish if recording time exhausted */
2663         if (recording_time != INT64_MAX &&
2664             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2665             ist->is_past_recording_time = 1;
2666             goto discard_packet;
2667         }
2668
2669         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2670         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2671
2672             if (verbose >= 0)
2673                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2674                         ist->file_index, ist->st->index);
2675             if (exit_on_error)
2676                 ffmpeg_exit(1);
2677             av_free_packet(&pkt);
2678             goto redo;
2679         }
2680
2681     discard_packet:
2682         av_free_packet(&pkt);
2683
2684         /* dump report by using the output first video and audio streams */
2685         print_report(output_files, ost_table, nb_ostreams, 0);
2686     }
2687
2688     /* at the end of stream, we must flush the decoder buffers */
2689     for (i = 0; i < nb_input_streams; i++) {
2690         ist = &input_streams[i];
2691         if (ist->decoding_needed) {
2692             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2693         }
2694     }
2695
2696     term_exit();
2697
2698     /* write the trailer if needed and close file */
2699     for(i=0;i<nb_output_files;i++) {
2700         os = output_files[i];
2701         av_write_trailer(os);
2702     }
2703
2704     /* dump report by using the first video and audio streams */
2705     print_report(output_files, ost_table, nb_ostreams, 1);
2706
2707     /* close each encoder */
2708     for(i=0;i<nb_ostreams;i++) {
2709         ost = ost_table[i];
2710         if (ost->encoding_needed) {
2711             av_freep(&ost->st->codec->stats_in);
2712             avcodec_close(ost->st->codec);
2713         }
2714 #if CONFIG_AVFILTER
2715         avfilter_graph_free(&ost->graph);
2716 #endif
2717     }
2718
2719     /* close each decoder */
2720     for (i = 0; i < nb_input_streams; i++) {
2721         ist = &input_streams[i];
2722         if (ist->decoding_needed) {
2723             avcodec_close(ist->st->codec);
2724         }
2725     }
2726
2727     /* finished ! */
2728     ret = 0;
2729
2730  fail:
2731     av_freep(&bit_buffer);
2732
2733     if (ost_table) {
2734         for(i=0;i<nb_ostreams;i++) {
2735             ost = ost_table[i];
2736             if (ost) {
2737                 if (ost->st->stream_copy)
2738                     av_freep(&ost->st->codec->extradata);
2739                 if (ost->logfile) {
2740                     fclose(ost->logfile);
2741                     ost->logfile = NULL;
2742                 }
2743                 av_fifo_free(ost->fifo); /* works even if fifo is not
2744                                              initialized but set to zero */
2745                 av_freep(&ost->st->codec->subtitle_header);
2746                 av_free(ost->pict_tmp.data[0]);
2747                 av_free(ost->forced_kf_pts);
2748                 if (ost->video_resample)
2749                     sws_freeContext(ost->img_resample_ctx);
2750                 if (ost->resample)
2751                     audio_resample_close(ost->resample);
2752                 if (ost->reformat_ctx)
2753                     av_audio_convert_free(ost->reformat_ctx);
2754                 av_dict_free(&ost->opts);
2755                 av_free(ost);
2756             }
2757         }
2758         av_free(ost_table);
2759     }
2760     return ret;
2761 }
2762
2763 static int opt_format(const char *opt, const char *arg)
2764 {
2765     last_asked_format = arg;
2766     return 0;
2767 }
2768
2769 static int opt_video_rc_override_string(const char *opt, const char *arg)
2770 {
2771     video_rc_override_string = arg;
2772     return 0;
2773 }
2774
2775 static int opt_me_threshold(const char *opt, const char *arg)
2776 {
2777     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2778     return 0;
2779 }
2780
2781 static int opt_verbose(const char *opt, const char *arg)
2782 {
2783     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2784     return 0;
2785 }
2786
2787 static int opt_frame_rate(const char *opt, const char *arg)
2788 {
2789     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2790         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2791         ffmpeg_exit(1);
2792     }
2793     return 0;
2794 }
2795
2796 static int opt_frame_crop(const char *opt, const char *arg)
2797 {
2798     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2799     return AVERROR(EINVAL);
2800 }
2801
2802 static int opt_frame_size(const char *opt, const char *arg)
2803 {
2804     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2805         fprintf(stderr, "Incorrect frame size\n");
2806         return AVERROR(EINVAL);
2807     }
2808     return 0;
2809 }
2810
2811 static int opt_pad(const char *opt, const char *arg) {
2812     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2813     return -1;
2814 }
2815
2816 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2817 {
2818     if (strcmp(arg, "list")) {
2819         frame_pix_fmt = av_get_pix_fmt(arg);
2820         if (frame_pix_fmt == PIX_FMT_NONE) {
2821             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2822             return AVERROR(EINVAL);
2823         }
2824     } else {
2825         show_pix_fmts();
2826         ffmpeg_exit(0);
2827     }
2828     return 0;
2829 }
2830
2831 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2832 {
2833     int x = 0, y = 0;
2834     double ar = 0;
2835     const char *p;
2836     char *end;
2837
2838     p = strchr(arg, ':');
2839     if (p) {
2840         x = strtol(arg, &end, 10);
2841         if (end == p)
2842             y = strtol(end+1, &end, 10);
2843         if (x > 0 && y > 0)
2844             ar = (double)x / (double)y;
2845     } else
2846         ar = strtod(arg, NULL);
2847
2848     if (!ar) {
2849         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2850         return AVERROR(EINVAL);
2851     }
2852     frame_aspect_ratio = ar;
2853     return 0;
2854 }
2855
2856 static int opt_metadata(const char *opt, const char *arg)
2857 {
2858     char *mid= strchr(arg, '=');
2859
2860     if(!mid){
2861         fprintf(stderr, "Missing =\n");
2862         ffmpeg_exit(1);
2863     }
2864     *mid++= 0;
2865
2866     av_dict_set(&metadata, arg, mid, 0);
2867
2868     return 0;
2869 }
2870
2871 static int opt_qscale(const char *opt, const char *arg)
2872 {
2873     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2874     if (video_qscale == 0) {
2875         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2876         return AVERROR(EINVAL);
2877     }
2878     return 0;
2879 }
2880
2881 static int opt_top_field_first(const char *opt, const char *arg)
2882 {
2883     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2884     return 0;
2885 }
2886
2887 static int opt_thread_count(const char *opt, const char *arg)
2888 {
2889     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2890 #if !HAVE_THREADS
2891     if (verbose >= 0)
2892         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2893 #endif
2894     return 0;
2895 }
2896
2897 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2898 {
2899     if (strcmp(arg, "list")) {
2900         audio_sample_fmt = av_get_sample_fmt(arg);
2901         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2902             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2903             return AVERROR(EINVAL);
2904         }
2905     } else {
2906         int i;
2907         char fmt_str[128];
2908         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2909             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2910         ffmpeg_exit(0);
2911     }
2912     return 0;
2913 }
2914
2915 static int opt_audio_rate(const char *opt, const char *arg)
2916 {
2917     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2918     return 0;
2919 }
2920
2921 static int opt_audio_channels(const char *opt, const char *arg)
2922 {
2923     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2924     return 0;
2925 }
2926
2927 static int opt_video_channel(const char *opt, const char *arg)
2928 {
2929     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2930     opt_default("channel", arg);
2931     return 0;
2932 }
2933
2934 static int opt_video_standard(const char *opt, const char *arg)
2935 {
2936     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2937     opt_default("standard", arg);
2938     return 0;
2939 }
2940
2941 static int opt_codec(int *pstream_copy, char **pcodec_name,
2942                       int codec_type, const char *arg)
2943 {
2944     av_freep(pcodec_name);
2945     if (!strcmp(arg, "copy")) {
2946         *pstream_copy = 1;
2947     } else {
2948         *pcodec_name = av_strdup(arg);
2949     }
2950     return 0;
2951 }
2952
2953 static int opt_audio_codec(const char *opt, const char *arg)
2954 {
2955     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2956 }
2957
2958 static int opt_video_codec(const char *opt, const char *arg)
2959 {
2960     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2961 }
2962
2963 static int opt_subtitle_codec(const char *opt, const char *arg)
2964 {
2965     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2966 }
2967
2968 static int opt_data_codec(const char *opt, const char *arg)
2969 {
2970     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2971 }
2972
2973 static int opt_codec_tag(const char *opt, const char *arg)
2974 {
2975     char *tail;
2976     uint32_t *codec_tag;
2977
2978     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2979                 !strcmp(opt, "vtag") ? &video_codec_tag :
2980                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2981     if (!codec_tag)
2982         return -1;
2983
2984     *codec_tag = strtol(arg, &tail, 0);
2985     if (!tail || *tail)
2986         *codec_tag = AV_RL32(arg);
2987
2988     return 0;
2989 }
2990
2991 static int opt_map(const char *opt, const char *arg)
2992 {
2993     StreamMap *m;
2994     char *p;
2995
2996     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2997     m = &stream_maps[nb_stream_maps-1];
2998
2999     m->file_index = strtol(arg, &p, 0);
3000     if (*p)
3001         p++;
3002
3003     m->stream_index = strtol(p, &p, 0);
3004     if (*p) {
3005         p++;
3006         m->sync_file_index = strtol(p, &p, 0);
3007         if (*p)
3008             p++;
3009         m->sync_stream_index = strtol(p, &p, 0);
3010     } else {
3011         m->sync_file_index = m->file_index;
3012         m->sync_stream_index = m->stream_index;
3013     }
3014     return 0;
3015 }
3016
3017 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3018 {
3019     *endptr = arg;
3020     if (*arg == ',') {
3021         *type = *(++arg);
3022         switch (*arg) {
3023         case 'g':
3024             break;
3025         case 's':
3026         case 'c':
3027         case 'p':
3028             *index = strtol(++arg, endptr, 0);
3029             break;
3030         default:
3031             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3032             ffmpeg_exit(1);
3033         }
3034     } else
3035         *type = 'g';
3036 }
3037
3038 static int opt_map_metadata(const char *opt, const char *arg)
3039 {
3040     MetadataMap *m, *m1;
3041     char *p;
3042
3043     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3044                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3045
3046     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3047     m->file = strtol(arg, &p, 0);
3048     parse_meta_type(p, &m->type, &m->index, &p);
3049     if (*p)
3050         p++;
3051
3052     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3053     m1->file = strtol(p, &p, 0);
3054     parse_meta_type(p, &m1->type, &m1->index, &p);
3055
3056     if (m->type == 'g' || m1->type == 'g')
3057         metadata_global_autocopy = 0;
3058     if (m->type == 's' || m1->type == 's')
3059         metadata_streams_autocopy = 0;
3060     if (m->type == 'c' || m1->type == 'c')
3061         metadata_chapters_autocopy = 0;
3062
3063     return 0;
3064 }
3065
3066 static int opt_map_meta_data(const char *opt, const char *arg)
3067 {
3068     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3069                     "Use -map_metadata instead.\n");
3070     return opt_map_metadata(opt, arg);
3071 }
3072
3073 static int opt_map_chapters(const char *opt, const char *arg)
3074 {
3075     ChapterMap *c;
3076     char *p;
3077
3078     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3079                               nb_chapter_maps + 1);
3080     c = &chapter_maps[nb_chapter_maps - 1];
3081     c->out_file = strtol(arg, &p, 0);
3082     if (*p)
3083         p++;
3084
3085     c->in_file = strtol(p, &p, 0);
3086     return 0;
3087 }
3088
3089 static int opt_input_ts_scale(const char *opt, const char *arg)
3090 {
3091     unsigned int stream;
3092     double scale;
3093     char *p;
3094
3095     stream = strtol(arg, &p, 0);
3096     if (*p)
3097         p++;
3098     scale= strtod(p, &p);
3099
3100     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3101     ts_scale[stream] = scale;
3102     return 0;
3103 }
3104
3105 static int opt_recording_time(const char *opt, const char *arg)
3106 {
3107     recording_time = parse_time_or_die(opt, arg, 1);
3108     return 0;
3109 }
3110
3111 static int opt_start_time(const char *opt, const char *arg)
3112 {
3113     start_time = parse_time_or_die(opt, arg, 1);
3114     return 0;
3115 }
3116
3117 static int opt_recording_timestamp(const char *opt, const char *arg)
3118 {
3119     char buf[128];
3120     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3121     struct tm time = *gmtime((time_t*)&recording_timestamp);
3122     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3123     opt_metadata("metadata", buf);
3124
3125     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3126                                  "tag instead.\n", opt);
3127     return 0;
3128 }
3129
3130 static int opt_input_ts_offset(const char *opt, const char *arg)
3131 {
3132     input_ts_offset = parse_time_or_die(opt, arg, 1);
3133     return 0;
3134 }
3135
3136 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3137 {
3138     const char *codec_string = encoder ? "encoder" : "decoder";
3139     AVCodec *codec;
3140
3141     if(!name)
3142         return CODEC_ID_NONE;
3143     codec = encoder ?
3144         avcodec_find_encoder_by_name(name) :
3145         avcodec_find_decoder_by_name(name);
3146     if(!codec) {
3147         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3148         ffmpeg_exit(1);
3149     }
3150     if(codec->type != type) {
3151         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3152         ffmpeg_exit(1);
3153     }
3154     return codec->id;
3155 }
3156
3157 static int opt_input_file(const char *opt, const char *filename)
3158 {
3159     AVFormatContext *ic;
3160     AVInputFormat *file_iformat = NULL;
3161     int err, i, ret, rfps, rfps_base;
3162     int64_t timestamp;
3163     uint8_t buf[128];
3164     AVDictionary **opts;
3165     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3166
3167     if (last_asked_format) {
3168         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3169             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3170             ffmpeg_exit(1);
3171         }
3172         last_asked_format = NULL;
3173     }
3174
3175     if (!strcmp(filename, "-"))
3176         filename = "pipe:";
3177
3178     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3179                     !strcmp(filename, "/dev/stdin");
3180
3181     /* get default parameters from command line */
3182     ic = avformat_alloc_context();
3183     if (!ic) {
3184         print_error(filename, AVERROR(ENOMEM));
3185         ffmpeg_exit(1);
3186     }
3187     if (audio_sample_rate) {
3188         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3189         av_dict_set(&format_opts, "sample_rate", buf, 0);
3190     }
3191     if (audio_channels) {
3192         snprintf(buf, sizeof(buf), "%d", audio_channels);
3193         av_dict_set(&format_opts, "channels", buf, 0);
3194     }
3195     if (frame_rate.num) {
3196         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3197         av_dict_set(&format_opts, "framerate", buf, 0);
3198     }
3199     if (frame_width && frame_height) {
3200         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3201         av_dict_set(&format_opts, "video_size", buf, 0);
3202     }
3203     if (frame_pix_fmt != PIX_FMT_NONE)
3204         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3205
3206     ic->video_codec_id   =
3207         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
3208     ic->audio_codec_id   =
3209         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
3210     ic->subtitle_codec_id=
3211         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3212     ic->flags |= AVFMT_FLAG_NONBLOCK;
3213
3214     /* open the input file with generic libav function */
3215     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3216     if (err < 0) {
3217         print_error(filename, err);
3218         ffmpeg_exit(1);
3219     }
3220     assert_avoptions(format_opts);
3221
3222     if(opt_programid) {
3223         int i, j;
3224         int found=0;
3225         for(i=0; i<ic->nb_streams; i++){
3226             ic->streams[i]->discard= AVDISCARD_ALL;
3227         }
3228         for(i=0; i<ic->nb_programs; i++){
3229             AVProgram *p= ic->programs[i];
3230             if(p->id != opt_programid){
3231                 p->discard = AVDISCARD_ALL;
3232             }else{
3233                 found=1;
3234                 for(j=0; j<p->nb_stream_indexes; j++){
3235                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3236                 }
3237             }
3238         }
3239         if(!found){
3240             fprintf(stderr, "Specified program id not found\n");
3241             ffmpeg_exit(1);
3242         }
3243         opt_programid=0;
3244     }
3245
3246     if (loop_input) {
3247         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3248         ic->loop_input = loop_input;
3249     }
3250
3251     /* Set AVCodecContext options for avformat_find_stream_info */
3252     opts = setup_find_stream_info_opts(ic);
3253     orig_nb_streams = ic->nb_streams;
3254
3255     /* If not enough info to get the stream parameters, we decode the
3256        first frames to get it. (used in mpeg case for example) */
3257     ret = avformat_find_stream_info(ic, opts);
3258     if (ret < 0 && verbose >= 0) {
3259         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3260         av_close_input_file(ic);
3261         ffmpeg_exit(1);
3262     }
3263
3264     timestamp = start_time;
3265     /* add the stream start time */
3266     if (ic->start_time != AV_NOPTS_VALUE)
3267         timestamp += ic->start_time;
3268
3269     /* if seeking requested, we execute it */
3270     if (start_time != 0) {
3271         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3272         if (ret < 0) {
3273             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3274                     filename, (double)timestamp / AV_TIME_BASE);
3275         }
3276         /* reset seek info */
3277         start_time = 0;
3278     }
3279
3280     /* update the current parameters so that they match the one of the input stream */
3281     for(i=0;i<ic->nb_streams;i++) {
3282         AVStream *st = ic->streams[i];
3283         AVCodecContext *dec = st->codec;
3284         InputStream *ist;
3285
3286         dec->thread_count = thread_count;
3287
3288         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3289         ist = &input_streams[nb_input_streams - 1];
3290         ist->st = st;
3291         ist->file_index = nb_input_files;
3292         ist->discard = 1;
3293         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, 0);
3294
3295         if (i < nb_ts_scale)
3296             ist->ts_scale = ts_scale[i];
3297
3298         switch (dec->codec_type) {
3299         case AVMEDIA_TYPE_AUDIO:
3300             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3301             if(audio_disable)
3302                 st->discard= AVDISCARD_ALL;
3303             break;
3304         case AVMEDIA_TYPE_VIDEO:
3305             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3306             rfps      = ic->streams[i]->r_frame_rate.num;
3307             rfps_base = ic->streams[i]->r_frame_rate.den;
3308             if (dec->lowres) {
3309                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3310                 dec->height >>= dec->lowres;
3311                 dec->width  >>= dec->lowres;
3312             }
3313             if(me_threshold)
3314                 dec->debug |= FF_DEBUG_MV;
3315
3316             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3317
3318                 if (verbose >= 0)
3319                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3320                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3321
3322                     (float)rfps / rfps_base, rfps, rfps_base);
3323             }
3324
3325             if(video_disable)
3326                 st->discard= AVDISCARD_ALL;
3327             else if(video_discard)
3328                 st->discard= video_discard;
3329             break;
3330         case AVMEDIA_TYPE_DATA:
3331             break;
3332         case AVMEDIA_TYPE_SUBTITLE:
3333             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3334             if(subtitle_disable)
3335                 st->discard = AVDISCARD_ALL;
3336             break;
3337         case AVMEDIA_TYPE_ATTACHMENT:
3338         case AVMEDIA_TYPE_UNKNOWN:
3339             break;
3340         default:
3341             abort();
3342         }
3343     }
3344
3345     /* dump the file content */
3346     if (verbose >= 0)
3347         av_dump_format(ic, nb_input_files, filename, 0);
3348
3349     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3350     input_files[nb_input_files - 1].ctx        = ic;
3351     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3352     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3353
3354     frame_rate    = (AVRational){0, 0};
3355     frame_pix_fmt = PIX_FMT_NONE;
3356     frame_height = 0;
3357     frame_width  = 0;
3358     audio_sample_rate = 0;
3359     audio_channels    = 0;
3360     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3361     av_freep(&ts_scale);
3362     nb_ts_scale = 0;
3363
3364     for (i = 0; i < orig_nb_streams; i++)
3365         av_dict_free(&opts[i]);
3366     av_freep(&opts);
3367     av_freep(&video_codec_name);
3368     av_freep(&audio_codec_name);
3369     av_freep(&subtitle_codec_name);
3370     uninit_opts();
3371     init_opts();
3372     return 0;
3373 }
3374
3375 static void check_inputs(int *has_video_ptr,
3376                          int *has_audio_ptr,
3377                          int *has_subtitle_ptr,
3378                          int *has_data_ptr)
3379 {
3380     int has_video, has_audio, has_subtitle, has_data, i, j;
3381     AVFormatContext *ic;
3382
3383     has_video = 0;
3384     has_audio = 0;
3385     has_subtitle = 0;
3386     has_data = 0;
3387
3388     for(j=0;j<nb_input_files;j++) {
3389         ic = input_files[j].ctx;
3390         for(i=0;i<ic->nb_streams;i++) {
3391             AVCodecContext *enc = ic->streams[i]->codec;
3392             switch(enc->codec_type) {
3393             case AVMEDIA_TYPE_AUDIO:
3394                 has_audio = 1;
3395                 break;
3396             case AVMEDIA_TYPE_VIDEO:
3397                 has_video = 1;
3398                 break;
3399             case AVMEDIA_TYPE_SUBTITLE:
3400                 has_subtitle = 1;
3401                 break;
3402             case AVMEDIA_TYPE_DATA:
3403             case AVMEDIA_TYPE_ATTACHMENT:
3404             case AVMEDIA_TYPE_UNKNOWN:
3405                 has_data = 1;
3406                 break;
3407             default:
3408                 abort();
3409             }
3410         }
3411     }
3412     *has_video_ptr = has_video;
3413     *has_audio_ptr = has_audio;
3414     *has_subtitle_ptr = has_subtitle;
3415     *has_data_ptr = has_data;
3416 }
3417
3418 static void new_video_stream(AVFormatContext *oc, int file_idx)
3419 {
3420     AVStream *st;
3421     OutputStream *ost;
3422     AVCodecContext *video_enc;
3423     enum CodecID codec_id = CODEC_ID_NONE;
3424     AVCodec *codec= NULL;
3425
3426     if(!video_stream_copy){
3427         if (video_codec_name) {
3428             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3429             codec = avcodec_find_encoder_by_name(video_codec_name);
3430         } else {
3431             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3432             codec = avcodec_find_encoder(codec_id);
3433         }
3434     }
3435
3436     ost = new_output_stream(oc, file_idx, codec);
3437     st  = ost->st;
3438     if (!video_stream_copy) {
3439         ost->frame_aspect_ratio = frame_aspect_ratio;
3440         frame_aspect_ratio = 0;
3441 #if CONFIG_AVFILTER
3442         ost->avfilter= vfilters;
3443         vfilters = NULL;
3444 #endif
3445     }
3446
3447     ost->bitstream_filters = video_bitstream_filters;
3448     video_bitstream_filters= NULL;
3449
3450     st->codec->thread_count= thread_count;
3451
3452     video_enc = st->codec;
3453
3454     if(video_codec_tag)
3455         video_enc->codec_tag= video_codec_tag;
3456
3457     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3458         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3459     }
3460
3461     video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3462     if (video_stream_copy) {
3463         st->stream_copy = 1;
3464         video_enc->sample_aspect_ratio =
3465         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3466     } else {
3467         const char *p;
3468         int i;
3469
3470         if (frame_rate.num)
3471             ost->frame_rate = frame_rate;
3472         video_enc->codec_id = codec_id;
3473
3474         video_enc->width = frame_width;
3475         video_enc->height = frame_height;
3476         video_enc->pix_fmt = frame_pix_fmt;
3477         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3478
3479         if (intra_only)
3480             video_enc->gop_size = 0;
3481         if (video_qscale || same_quality) {
3482             video_enc->flags |= CODEC_FLAG_QSCALE;
3483             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3484         }
3485
3486         if(intra_matrix)
3487             video_enc->intra_matrix = intra_matrix;
3488         if(inter_matrix)
3489             video_enc->inter_matrix = inter_matrix;
3490
3491         p= video_rc_override_string;
3492         for(i=0; p; i++){
3493             int start, end, q;
3494             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3495             if(e!=3){
3496                 fprintf(stderr, "error parsing rc_override\n");
3497                 ffmpeg_exit(1);
3498             }
3499             video_enc->rc_override=
3500                 av_realloc(video_enc->rc_override,
3501                            sizeof(RcOverride)*(i+1));
3502             video_enc->rc_override[i].start_frame= start;
3503             video_enc->rc_override[i].end_frame  = end;
3504             if(q>0){
3505                 video_enc->rc_override[i].qscale= q;
3506                 video_enc->rc_override[i].quality_factor= 1.0;
3507             }
3508             else{
3509                 video_enc->rc_override[i].qscale= 0;
3510                 video_enc->rc_override[i].quality_factor= -q/100.0;
3511             }
3512             p= strchr(p, '/');
3513             if(p) p++;
3514         }
3515         video_enc->rc_override_count=i;
3516         if (!video_enc->rc_initial_buffer_occupancy)
3517             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3518         video_enc->me_threshold= me_threshold;
3519         video_enc->intra_dc_precision= intra_dc_precision - 8;
3520
3521         if (do_psnr)
3522             video_enc->flags|= CODEC_FLAG_PSNR;
3523
3524         /* two pass mode */
3525         if (do_pass) {
3526             if (do_pass == 1) {
3527                 video_enc->flags |= CODEC_FLAG_PASS1;
3528             } else {
3529                 video_enc->flags |= CODEC_FLAG_PASS2;
3530             }
3531         }
3532
3533         if (forced_key_frames)
3534             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3535     }
3536     if (video_language) {
3537         av_dict_set(&st->metadata, "language", video_language, 0);
3538         av_freep(&video_language);
3539     }
3540
3541     /* reset some key parameters */
3542     video_disable = 0;
3543     av_freep(&video_codec_name);
3544     av_freep(&forced_key_frames);
3545     video_stream_copy = 0;
3546     frame_pix_fmt = PIX_FMT_NONE;
3547 }
3548
3549 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3550 {
3551     AVStream *st;
3552     OutputStream *ost;
3553     AVCodec *codec= NULL;
3554     AVCodecContext *audio_enc;
3555     enum CodecID codec_id = CODEC_ID_NONE;
3556
3557     if(!audio_stream_copy){
3558         if (audio_codec_name) {
3559             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3560             codec = avcodec_find_encoder_by_name(audio_codec_name);
3561         } else {
3562             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3563             codec = avcodec_find_encoder(codec_id);
3564         }
3565     }
3566     ost = new_output_stream(oc, file_idx, codec);
3567     st  = ost->st;
3568
3569     ost->bitstream_filters = audio_bitstream_filters;
3570     audio_bitstream_filters= NULL;
3571
3572     st->codec->thread_count= thread_count;
3573
3574     audio_enc = st->codec;
3575     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3576
3577     if(audio_codec_tag)
3578         audio_enc->codec_tag= audio_codec_tag;
3579
3580     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3581         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3582     }
3583     if (audio_stream_copy) {
3584         st->stream_copy = 1;
3585     } else {
3586         audio_enc->codec_id = codec_id;
3587
3588         if (audio_qscale > QSCALE_NONE) {
3589             audio_enc->flags |= CODEC_FLAG_QSCALE;
3590             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3591         }
3592         if (audio_channels)
3593             audio_enc->channels = audio_channels;
3594         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3595             audio_enc->sample_fmt = audio_sample_fmt;
3596         if (audio_sample_rate)
3597             audio_enc->sample_rate = audio_sample_rate;
3598     }
3599     if (audio_language) {
3600         av_dict_set(&st->metadata, "language", audio_language, 0);
3601         av_freep(&audio_language);
3602     }
3603
3604     /* reset some key parameters */
3605     audio_disable = 0;
3606     av_freep(&audio_codec_name);
3607     audio_stream_copy = 0;
3608 }
3609
3610 static void new_data_stream(AVFormatContext *oc, int file_idx)
3611 {
3612     AVStream *st;
3613     OutputStream *ost;
3614     AVCodecContext *data_enc;
3615
3616     ost = new_output_stream(oc, file_idx, NULL);
3617     st  = ost->st;
3618     data_enc = st->codec;
3619     if (!data_stream_copy) {
3620         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3621         ffmpeg_exit(1);
3622     }
3623
3624     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3625
3626     if (data_codec_tag)
3627         data_enc->codec_tag= data_codec_tag;
3628
3629     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3630         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3631     }
3632     if (data_stream_copy) {
3633         st->stream_copy = 1;
3634     }
3635
3636     data_disable = 0;
3637     av_freep(&data_codec_name);
3638     data_stream_copy = 0;
3639 }
3640
3641 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3642 {
3643     AVStream *st;
3644     OutputStream *ost;
3645     AVCodec *codec=NULL;
3646     AVCodecContext *subtitle_enc;
3647     enum CodecID codec_id = CODEC_ID_NONE;
3648
3649     if(!subtitle_str