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