cmdutils: move grow_array() from avconv to cmdutils.
[ffmpeg.git] / ffmpeg.c
1 /*
2  * ffmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "ffmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82     int file_index;
83     int stream_index;
84     int sync_file_index;
85     int sync_stream_index;
86 } StreamMap;
87
88 /**
89  * select an input file for an output file
90  */
91 typedef struct MetadataMap {
92     int  file;      ///< file index
93     char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
94     int  index;     ///< stream/chapter/program number
95 } MetadataMap;
96
97 typedef struct ChapterMap {
98     int in_file;
99     int out_file;
100 } ChapterMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105
106 static const char *last_asked_format = NULL;
107 static double *ts_scale;
108 static int  nb_ts_scale;
109
110 static AVFormatContext *output_files[MAX_FILES];
111 static AVDictionary *output_opts[MAX_FILES];
112 static int nb_output_files = 0;
113
114 static StreamMap *stream_maps = NULL;
115 static int nb_stream_maps;
116
117 /* first item specifies output metadata, second is input */
118 static MetadataMap (*meta_data_maps)[2] = NULL;
119 static int nb_meta_data_maps;
120 static int metadata_global_autocopy   = 1;
121 static int metadata_streams_autocopy  = 1;
122 static int metadata_chapters_autocopy = 1;
123
124 static ChapterMap *chapter_maps = NULL;
125 static int nb_chapter_maps;
126
127 /* indexed by output file stream index */
128 static int *streamid_map = NULL;
129 static int nb_streamid_map = 0;
130
131 static int frame_width  = 0;
132 static int frame_height = 0;
133 static float frame_aspect_ratio = 0;
134 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
135 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
136 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
137 static AVRational frame_rate;
138 static float video_qscale = 0;
139 static uint16_t *intra_matrix = NULL;
140 static uint16_t *inter_matrix = NULL;
141 static const char *video_rc_override_string=NULL;
142 static int video_disable = 0;
143 static int video_discard = 0;
144 static char *video_codec_name = NULL;
145 static unsigned int video_codec_tag = 0;
146 static char *video_language = NULL;
147 static int same_quality = 0;
148 static int do_deinterlace = 0;
149 static int top_field_first = -1;
150 static int me_threshold = 0;
151 static int intra_dc_precision = 8;
152 static int loop_input = 0;
153 static int loop_output = AVFMT_NOOUTPUTLOOP;
154 static int qp_hist = 0;
155 #if CONFIG_AVFILTER
156 static char *vfilters = NULL;
157 #endif
158
159 static int intra_only = 0;
160 static int audio_sample_rate = 0;
161 #define QSCALE_NONE -99999
162 static float audio_qscale = QSCALE_NONE;
163 static int audio_disable = 0;
164 static int audio_channels = 0;
165 static char  *audio_codec_name = NULL;
166 static unsigned int audio_codec_tag = 0;
167 static char *audio_language = NULL;
168
169 static int subtitle_disable = 0;
170 static char *subtitle_codec_name = NULL;
171 static char *subtitle_language = NULL;
172 static unsigned int subtitle_codec_tag = 0;
173
174 static int data_disable = 0;
175 static char *data_codec_name = NULL;
176 static unsigned int data_codec_tag = 0;
177
178 static float mux_preload= 0.5;
179 static float mux_max_delay= 0.7;
180
181 static int64_t recording_time = INT64_MAX;
182 static int64_t start_time = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static AVDictionary *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static char *pass_logfilename_prefix = NULL;
192 static int audio_stream_copy = 0;
193 static int video_stream_copy = 0;
194 static int subtitle_stream_copy = 0;
195 static int data_stream_copy = 0;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int copy_tb;
201 static int opt_shortest = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int audio_volume = 256;
210
211 static int exit_on_error = 0;
212 static int using_stdin = 0;
213 static int verbose = 1;
214 static int thread_count= 1;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223 static char *forced_key_frames = NULL;
224
225 static float dts_delta_threshold = 10;
226
227 static int64_t timer_start;
228
229 static uint8_t *audio_buf;
230 static uint8_t *audio_out;
231 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
232
233 static short *samples;
234
235 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
236 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
238
239 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
240
241 struct InputStream;
242
243 typedef struct OutputStream {
244     int file_index;          /* file index */
245     int index;               /* stream index in the output file */
246     int source_index;        /* InputStream index */
247     AVStream *st;            /* stream in the output file */
248     int encoding_needed;     /* true if encoding needed for this stream */
249     int frame_number;
250     /* input pts and corresponding output pts
251        for A/V sync */
252     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
253     struct InputStream *sync_ist; /* input stream to sync against */
254     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
255     AVBitStreamFilterContext *bitstream_filters;
256     AVCodec *enc;
257
258     /* video only */
259     int video_resample;
260     AVFrame pict_tmp;      /* temporary image for resampling */
261     struct SwsContext *img_resample_ctx; /* for image resampling */
262     int resample_height;
263     int resample_width;
264     int resample_pix_fmt;
265     AVRational frame_rate;
266
267     float frame_aspect_ratio;
268
269     /* forced key frames */
270     int64_t *forced_kf_pts;
271     int forced_kf_count;
272     int forced_kf_index;
273
274     /* audio only */
275     int audio_resample;
276     ReSampleContext *resample; /* for audio resampling */
277     int resample_sample_fmt;
278     int resample_channels;
279     int resample_sample_rate;
280     int reformat_pair;
281     AVAudioConvert *reformat_ctx;
282     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
283     FILE *logfile;
284
285 #if CONFIG_AVFILTER
286     AVFilterContext *output_video_filter;
287     AVFilterContext *input_video_filter;
288     AVFilterBufferRef *picref;
289     char *avfilter;
290     AVFilterGraph *graph;
291 #endif
292
293    int sws_flags;
294    AVDictionary *opts;
295 } OutputStream;
296
297 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
298 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
299
300 typedef struct InputStream {
301     int file_index;
302     AVStream *st;
303     int discard;             /* true if stream data should be discarded */
304     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
305     AVCodec *dec;
306
307     int64_t       start;     /* time when read started */
308     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
309                                 is not defined */
310     int64_t       pts;       /* current pts */
311     PtsCorrectionContext pts_ctx;
312     double ts_scale;
313     int is_start;            /* is 1 at the start and after a discontinuity */
314     int showed_multi_packet_warning;
315     int is_past_recording_time;
316     AVDictionary *opts;
317 } InputStream;
318
319 typedef struct InputFile {
320     AVFormatContext *ctx;
321     int eof_reached;      /* true if eof reached */
322     int ist_index;        /* index of first stream in ist_table */
323     int buffer_size;      /* current total buffer size */
324     int64_t ts_offset;
325 } InputFile;
326
327 static InputStream *input_streams = NULL;
328 static int         nb_input_streams = 0;
329 static InputFile   *input_files   = NULL;
330 static int         nb_input_files   = 0;
331
332 #if CONFIG_AVFILTER
333
334 static int configure_video_filters(InputStream *ist, OutputStream *ost)
335 {
336     AVFilterContext *last_filter, *filter;
337     /** filter graph containing all filters including input & output */
338     AVCodecContext *codec = ost->st->codec;
339     AVCodecContext *icodec = ist->st->codec;
340     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
341     AVRational sample_aspect_ratio;
342     char args[255];
343     int ret;
344
345     ost->graph = avfilter_graph_alloc();
346
347     if (ist->st->sample_aspect_ratio.num){
348         sample_aspect_ratio = ist->st->sample_aspect_ratio;
349     }else
350         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
351
352     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
353              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
354              sample_aspect_ratio.num, sample_aspect_ratio.den);
355
356     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
357                                        "src", args, NULL, ost->graph);
358     if (ret < 0)
359         return ret;
360     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
361                                        "out", NULL, &ffsink_ctx, ost->graph);
362     if (ret < 0)
363         return ret;
364     last_filter = ost->input_video_filter;
365
366     if (codec->width  != icodec->width || codec->height != icodec->height) {
367         snprintf(args, 255, "%d:%d:flags=0x%X",
368                  codec->width,
369                  codec->height,
370                  ost->sws_flags);
371         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
372                                                 NULL, args, NULL, ost->graph)) < 0)
373             return ret;
374         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
375             return ret;
376         last_filter = filter;
377     }
378
379     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
380     ost->graph->scale_sws_opts = av_strdup(args);
381
382     if (ost->avfilter) {
383         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
384         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
385
386         outputs->name    = av_strdup("in");
387         outputs->filter_ctx = last_filter;
388         outputs->pad_idx = 0;
389         outputs->next    = NULL;
390
391         inputs->name    = av_strdup("out");
392         inputs->filter_ctx = ost->output_video_filter;
393         inputs->pad_idx = 0;
394         inputs->next    = NULL;
395
396         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
397             return ret;
398         av_freep(&ost->avfilter);
399     } else {
400         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
401             return ret;
402     }
403
404     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
405         return ret;
406
407     codec->width  = ost->output_video_filter->inputs[0]->w;
408     codec->height = ost->output_video_filter->inputs[0]->h;
409     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
410         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
411         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
412         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
413
414     return 0;
415 }
416 #endif /* CONFIG_AVFILTER */
417
418 static void term_exit(void)
419 {
420     av_log(NULL, AV_LOG_QUIET, "");
421 }
422
423 static volatile int received_sigterm = 0;
424 static volatile int received_nb_signals = 0;
425
426 static void
427 sigterm_handler(int sig)
428 {
429     received_sigterm = sig;
430     received_nb_signals++;
431     term_exit();
432 }
433
434 static void term_init(void)
435 {
436     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
437     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
438 #ifdef SIGXCPU
439     signal(SIGXCPU, sigterm_handler);
440 #endif
441 }
442
443 static int decode_interrupt_cb(void)
444 {
445     return received_nb_signals > 1;
446 }
447
448 void exit_program(int ret)
449 {
450     int i;
451
452     /* close files */
453     for(i=0;i<nb_output_files;i++) {
454         AVFormatContext *s = output_files[i];
455         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
456             avio_close(s->pb);
457         avformat_free_context(s);
458         av_free(output_streams_for_file[i]);
459         av_dict_free(&output_opts[i]);
460     }
461     for(i=0;i<nb_input_files;i++) {
462         av_close_input_file(input_files[i].ctx);
463     }
464     for (i = 0; i < nb_input_streams; i++)
465         av_dict_free(&input_streams[i].opts);
466
467     av_free(intra_matrix);
468     av_free(inter_matrix);
469
470     if (vstats_file)
471         fclose(vstats_file);
472     av_free(vstats_filename);
473
474     av_free(streamid_map);
475     av_free(stream_maps);
476     av_free(meta_data_maps);
477
478     av_freep(&input_streams);
479     av_freep(&input_files);
480
481     av_free(video_codec_name);
482     av_free(audio_codec_name);
483     av_free(subtitle_codec_name);
484     av_free(data_codec_name);
485
486     uninit_opts();
487     av_free(audio_buf);
488     av_free(audio_out);
489     allocated_audio_buf_size= allocated_audio_out_size= 0;
490     av_free(samples);
491
492 #if CONFIG_AVFILTER
493     avfilter_uninit();
494 #endif
495
496     if (received_sigterm) {
497         fprintf(stderr,
498             "Received signal %d: terminating.\n",
499             (int) received_sigterm);
500         exit (255);
501     }
502
503     exit(ret); /* not all OS-es handle main() return value */
504 }
505
506 static void assert_avoptions(AVDictionary *m)
507 {
508     AVDictionaryEntry *t;
509     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
510         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
511         exit_program(1);
512     }
513 }
514
515 static void assert_codec_experimental(AVCodecContext *c, int encoder)
516 {
517     const char *codec_string = encoder ? "encoder" : "decoder";
518     AVCodec *codec;
519     if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
520         c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
521         av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
522                 "results.\nAdd '-strict experimental' if you want to use it.\n",
523                 codec_string, c->codec->name);
524         codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
525         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
526             av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
527                    codec_string, codec->name);
528         exit_program(1);
529     }
530 }
531
532 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
533 {
534     if(codec && codec->sample_fmts){
535         const enum AVSampleFormat *p= codec->sample_fmts;
536         for(; *p!=-1; p++){
537             if(*p == st->codec->sample_fmt)
538                 break;
539         }
540         if (*p == -1) {
541             av_log(NULL, AV_LOG_WARNING,
542                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
543                    av_get_sample_fmt_name(st->codec->sample_fmt),
544                    codec->name,
545                    av_get_sample_fmt_name(codec->sample_fmts[0]));
546             st->codec->sample_fmt = codec->sample_fmts[0];
547         }
548     }
549 }
550
551 /**
552  * Update the requested input sample format based on the output sample format.
553  * This is currently only used to request float output from decoders which
554  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
555  * Ideally this will be removed in the future when decoders do not do format
556  * conversion and only output in their native format.
557  */
558 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
559                               AVCodecContext *enc)
560 {
561     /* if sample formats match or a decoder sample format has already been
562        requested, just return */
563     if (enc->sample_fmt == dec->sample_fmt ||
564         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
565         return;
566
567     /* if decoder supports more than one output format */
568     if (dec_codec && dec_codec->sample_fmts &&
569         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
570         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
571         const enum AVSampleFormat *p;
572         int min_dec = -1, min_inc = -1;
573
574         /* find a matching sample format in the encoder */
575         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
576             if (*p == enc->sample_fmt) {
577                 dec->request_sample_fmt = *p;
578                 return;
579             } else if (*p > enc->sample_fmt) {
580                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
581             } else
582                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
583         }
584
585         /* if none match, provide the one that matches quality closest */
586         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
587                                   enc->sample_fmt - min_dec;
588     }
589 }
590
591 static void choose_sample_rate(AVStream *st, AVCodec *codec)
592 {
593     if(codec && codec->supported_samplerates){
594         const int *p= codec->supported_samplerates;
595         int best=0;
596         int best_dist=INT_MAX;
597         for(; *p; p++){
598             int dist= abs(st->codec->sample_rate - *p);
599             if(dist < best_dist){
600                 best_dist= dist;
601                 best= *p;
602             }
603         }
604         if(best_dist){
605             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
606         }
607         st->codec->sample_rate= best;
608     }
609 }
610
611 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
612 {
613     if(codec && codec->pix_fmts){
614         const enum PixelFormat *p= codec->pix_fmts;
615         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
616             if(st->codec->codec_id==CODEC_ID_MJPEG){
617                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
618             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
619                 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};
620             }
621         }
622         for(; *p!=-1; p++){
623             if(*p == st->codec->pix_fmt)
624                 break;
625         }
626         if (*p == -1) {
627             if(st->codec->pix_fmt != PIX_FMT_NONE)
628                 av_log(NULL, AV_LOG_WARNING,
629                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
630                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
631                         codec->name,
632                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
633             st->codec->pix_fmt = codec->pix_fmts[0];
634         }
635     }
636 }
637
638 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
639 {
640     OutputStream *ost;
641     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
642     int idx      = oc->nb_streams - 1;
643
644     if (!st) {
645         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
646         exit_program(1);
647     }
648
649     output_streams_for_file[file_idx] =
650         grow_array(output_streams_for_file[file_idx],
651                    sizeof(*output_streams_for_file[file_idx]),
652                    &nb_output_streams_for_file[file_idx],
653                    oc->nb_streams);
654     ost = output_streams_for_file[file_idx][idx] =
655         av_mallocz(sizeof(OutputStream));
656     if (!ost) {
657         fprintf(stderr, "Could not alloc output stream\n");
658         exit_program(1);
659     }
660     ost->file_index = file_idx;
661     ost->index = idx;
662     ost->st    = st;
663     ost->enc   = codec;
664     if (codec)
665         ost->opts  = filter_codec_opts(codec_opts, codec->id, oc, st);
666
667     avcodec_get_context_defaults3(st->codec, codec);
668
669     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
670     return ost;
671 }
672
673 static int read_avserver_streams(AVFormatContext *s, const char *filename)
674 {
675     int i, err;
676     AVFormatContext *ic = NULL;
677
678     err = avformat_open_input(&ic, filename, NULL, NULL);
679     if (err < 0)
680         return err;
681     /* copy stream format */
682     for(i=0;i<ic->nb_streams;i++) {
683         AVStream *st;
684         OutputStream *ost;
685         AVCodec *codec;
686
687         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
688         ost   = new_output_stream(s, nb_output_files, codec);
689         st    = ost->st;
690
691         // FIXME: a more elegant solution is needed
692         memcpy(st, ic->streams[i], sizeof(AVStream));
693         st->info = NULL;
694         avcodec_copy_context(st->codec, ic->streams[i]->codec);
695
696         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
697             if (audio_stream_copy) {
698                 st->stream_copy = 1;
699             } else
700                 choose_sample_fmt(st, codec);
701         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
702             if (video_stream_copy) {
703                 st->stream_copy = 1;
704             } else
705                 choose_pixel_fmt(st, codec);
706         }
707     }
708
709     av_close_input_file(ic);
710     return 0;
711 }
712
713 static double
714 get_sync_ipts(const OutputStream *ost)
715 {
716     const InputStream *ist = ost->sync_ist;
717     return (double)(ist->pts - start_time)/AV_TIME_BASE;
718 }
719
720 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
721     int ret;
722
723     while(bsfc){
724         AVPacket new_pkt= *pkt;
725         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
726                                           &new_pkt.data, &new_pkt.size,
727                                           pkt->data, pkt->size,
728                                           pkt->flags & AV_PKT_FLAG_KEY);
729         if(a>0){
730             av_free_packet(pkt);
731             new_pkt.destruct= av_destruct_packet;
732         } else if(a<0){
733             fprintf(stderr, "%s failed for stream %d, codec %s",
734                     bsfc->filter->name, pkt->stream_index,
735                     avctx->codec ? avctx->codec->name : "copy");
736             print_error("", a);
737             if (exit_on_error)
738                 exit_program(1);
739         }
740         *pkt= new_pkt;
741
742         bsfc= bsfc->next;
743     }
744
745     ret= av_interleaved_write_frame(s, pkt);
746     if(ret < 0){
747         print_error("av_interleaved_write_frame()", ret);
748         exit_program(1);
749     }
750 }
751
752 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
753
754 static void do_audio_out(AVFormatContext *s,
755                          OutputStream *ost,
756                          InputStream *ist,
757                          unsigned char *buf, int size)
758 {
759     uint8_t *buftmp;
760     int64_t audio_out_size, audio_buf_size;
761     int64_t allocated_for_size= size;
762
763     int size_out, frame_bytes, ret, resample_changed;
764     AVCodecContext *enc= ost->st->codec;
765     AVCodecContext *dec= ist->st->codec;
766     int osize = av_get_bytes_per_sample(enc->sample_fmt);
767     int isize = av_get_bytes_per_sample(dec->sample_fmt);
768     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
769
770 need_realloc:
771     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
772     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
773     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
774     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
775     audio_buf_size*= osize*enc->channels;
776
777     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
778     if(coded_bps > 8*osize)
779         audio_out_size= audio_out_size * coded_bps / (8*osize);
780     audio_out_size += FF_MIN_BUFFER_SIZE;
781
782     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
783         fprintf(stderr, "Buffer sizes too large\n");
784         exit_program(1);
785     }
786
787     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
788     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
789     if (!audio_buf || !audio_out){
790         fprintf(stderr, "Out of memory in do_audio_out\n");
791         exit_program(1);
792     }
793
794     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
795         ost->audio_resample = 1;
796
797     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
798                        ost->resample_channels    != dec->channels   ||
799                        ost->resample_sample_rate != dec->sample_rate;
800
801     if ((ost->audio_resample && !ost->resample) || resample_changed) {
802         if (resample_changed) {
803             av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
804                    ist->file_index, ist->st->index,
805                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
806                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
807             ost->resample_sample_fmt  = dec->sample_fmt;
808             ost->resample_channels    = dec->channels;
809             ost->resample_sample_rate = dec->sample_rate;
810             if (ost->resample)
811                 audio_resample_close(ost->resample);
812         }
813         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
814         if (audio_sync_method <= 1 &&
815             ost->resample_sample_fmt  == enc->sample_fmt &&
816             ost->resample_channels    == enc->channels   &&
817             ost->resample_sample_rate == enc->sample_rate) {
818             ost->resample = NULL;
819             ost->audio_resample = 0;
820         } else if (ost->audio_resample) {
821             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
822                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
823             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
824                                                    enc->sample_rate, dec->sample_rate,
825                                                    enc->sample_fmt,  dec->sample_fmt,
826                                                    16, 10, 0, 0.8);
827             if (!ost->resample) {
828                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
829                         dec->channels, dec->sample_rate,
830                         enc->channels, enc->sample_rate);
831                 exit_program(1);
832             }
833         }
834     }
835
836 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
837     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
838         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
839         if (ost->reformat_ctx)
840             av_audio_convert_free(ost->reformat_ctx);
841         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
842                                                    dec->sample_fmt, 1, NULL, 0);
843         if (!ost->reformat_ctx) {
844             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
845                 av_get_sample_fmt_name(dec->sample_fmt),
846                 av_get_sample_fmt_name(enc->sample_fmt));
847             exit_program(1);
848         }
849         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
850     }
851
852     if(audio_sync_method){
853         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
854                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
855         double idelta= delta*dec->sample_rate / enc->sample_rate;
856         int byte_delta= ((int)idelta)*2*dec->channels;
857
858         //FIXME resample delay
859         if(fabs(delta) > 50){
860             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
861                 if(byte_delta < 0){
862                     byte_delta= FFMAX(byte_delta, -size);
863                     size += byte_delta;
864                     buf  -= byte_delta;
865                     if(verbose > 2)
866                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
867                     if(!size)
868                         return;
869                     ist->is_start=0;
870                 }else{
871                     static uint8_t *input_tmp= NULL;
872                     input_tmp= av_realloc(input_tmp, byte_delta + size);
873
874                     if(byte_delta > allocated_for_size - size){
875                         allocated_for_size= byte_delta + (int64_t)size;
876                         goto need_realloc;
877                     }
878                     ist->is_start=0;
879
880                     memset(input_tmp, 0, byte_delta);
881                     memcpy(input_tmp + byte_delta, buf, size);
882                     buf= input_tmp;
883                     size += byte_delta;
884                     if(verbose > 2)
885                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
886                 }
887             }else if(audio_sync_method>1){
888                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
889                 av_assert0(ost->audio_resample);
890                 if(verbose > 2)
891                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
892 //                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
893                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
894             }
895         }
896     }else
897         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
898                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
899
900     if (ost->audio_resample) {
901         buftmp = audio_buf;
902         size_out = audio_resample(ost->resample,
903                                   (short *)buftmp, (short *)buf,
904                                   size / (dec->channels * isize));
905         size_out = size_out * enc->channels * osize;
906     } else {
907         buftmp = buf;
908         size_out = size;
909     }
910
911     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
912         const void *ibuf[6]= {buftmp};
913         void *obuf[6]= {audio_buf};
914         int istride[6]= {isize};
915         int ostride[6]= {osize};
916         int len= size_out/istride[0];
917         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
918             printf("av_audio_convert() failed\n");
919             if (exit_on_error)
920                 exit_program(1);
921             return;
922         }
923         buftmp = audio_buf;
924         size_out = len*osize;
925     }
926
927     /* now encode as many frames as possible */
928     if (enc->frame_size > 1) {
929         /* output resampled raw samples */
930         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
931             fprintf(stderr, "av_fifo_realloc2() failed\n");
932             exit_program(1);
933         }
934         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
935
936         frame_bytes = enc->frame_size * osize * enc->channels;
937
938         while (av_fifo_size(ost->fifo) >= frame_bytes) {
939             AVPacket pkt;
940             av_init_packet(&pkt);
941
942             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
943
944             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
945
946             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
947                                        (short *)audio_buf);
948             if (ret < 0) {
949                 fprintf(stderr, "Audio encoding failed\n");
950                 exit_program(1);
951             }
952             audio_size += ret;
953             pkt.stream_index= ost->index;
954             pkt.data= audio_out;
955             pkt.size= ret;
956             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
957                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
958             pkt.flags |= AV_PKT_FLAG_KEY;
959             write_frame(s, &pkt, enc, ost->bitstream_filters);
960
961             ost->sync_opts += enc->frame_size;
962         }
963     } else {
964         AVPacket pkt;
965         av_init_packet(&pkt);
966
967         ost->sync_opts += size_out / (osize * enc->channels);
968
969         /* output a pcm frame */
970         /* determine the size of the coded buffer */
971         size_out /= osize;
972         if (coded_bps)
973             size_out = size_out*coded_bps/8;
974
975         if(size_out > audio_out_size){
976             fprintf(stderr, "Internal error, buffer size too small\n");
977             exit_program(1);
978         }
979
980         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
981         ret = avcodec_encode_audio(enc, audio_out, size_out,
982                                    (short *)buftmp);
983         if (ret < 0) {
984             fprintf(stderr, "Audio encoding failed\n");
985             exit_program(1);
986         }
987         audio_size += ret;
988         pkt.stream_index= ost->index;
989         pkt.data= audio_out;
990         pkt.size= ret;
991         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
992             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
993         pkt.flags |= AV_PKT_FLAG_KEY;
994         write_frame(s, &pkt, enc, ost->bitstream_filters);
995     }
996 }
997
998 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
999 {
1000     AVCodecContext *dec;
1001     AVPicture *picture2;
1002     AVPicture picture_tmp;
1003     uint8_t *buf = 0;
1004
1005     dec = ist->st->codec;
1006
1007     /* deinterlace : must be done before any resize */
1008     if (do_deinterlace) {
1009         int size;
1010
1011         /* create temporary picture */
1012         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1013         buf = av_malloc(size);
1014         if (!buf)
1015             return;
1016
1017         picture2 = &picture_tmp;
1018         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1019
1020         if(avpicture_deinterlace(picture2, picture,
1021                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1022             /* if error, do not deinterlace */
1023             fprintf(stderr, "Deinterlacing failed\n");
1024             av_free(buf);
1025             buf = NULL;
1026             picture2 = picture;
1027         }
1028     } else {
1029         picture2 = picture;
1030     }
1031
1032     if (picture != picture2)
1033         *picture = *picture2;
1034     *bufp = buf;
1035 }
1036
1037 /* we begin to correct av delay at this threshold */
1038 #define AV_DELAY_MAX 0.100
1039
1040 static void do_subtitle_out(AVFormatContext *s,
1041                             OutputStream *ost,
1042                             InputStream *ist,
1043                             AVSubtitle *sub,
1044                             int64_t pts)
1045 {
1046     static uint8_t *subtitle_out = NULL;
1047     int subtitle_out_max_size = 1024 * 1024;
1048     int subtitle_out_size, nb, i;
1049     AVCodecContext *enc;
1050     AVPacket pkt;
1051
1052     if (pts == AV_NOPTS_VALUE) {
1053         fprintf(stderr, "Subtitle packets must have a pts\n");
1054         if (exit_on_error)
1055             exit_program(1);
1056         return;
1057     }
1058
1059     enc = ost->st->codec;
1060
1061     if (!subtitle_out) {
1062         subtitle_out = av_malloc(subtitle_out_max_size);
1063     }
1064
1065     /* Note: DVB subtitle need one packet to draw them and one other
1066        packet to clear them */
1067     /* XXX: signal it in the codec context ? */
1068     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1069         nb = 2;
1070     else
1071         nb = 1;
1072
1073     for(i = 0; i < nb; i++) {
1074         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1075         // start_display_time is required to be 0
1076         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1077         sub->end_display_time -= sub->start_display_time;
1078         sub->start_display_time = 0;
1079         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1080                                                     subtitle_out_max_size, sub);
1081         if (subtitle_out_size < 0) {
1082             fprintf(stderr, "Subtitle encoding failed\n");
1083             exit_program(1);
1084         }
1085
1086         av_init_packet(&pkt);
1087         pkt.stream_index = ost->index;
1088         pkt.data = subtitle_out;
1089         pkt.size = subtitle_out_size;
1090         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1091         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1092             /* XXX: the pts correction is handled here. Maybe handling
1093                it in the codec would be better */
1094             if (i == 0)
1095                 pkt.pts += 90 * sub->start_display_time;
1096             else
1097                 pkt.pts += 90 * sub->end_display_time;
1098         }
1099         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1100     }
1101 }
1102
1103 static int bit_buffer_size= 1024*256;
1104 static uint8_t *bit_buffer= NULL;
1105
1106 static void do_video_out(AVFormatContext *s,
1107                          OutputStream *ost,
1108                          InputStream *ist,
1109                          AVFrame *in_picture,
1110                          int *frame_size, float quality)
1111 {
1112     int nb_frames, i, ret, resample_changed;
1113     AVFrame *final_picture, *formatted_picture;
1114     AVCodecContext *enc, *dec;
1115     double sync_ipts;
1116
1117     enc = ost->st->codec;
1118     dec = ist->st->codec;
1119
1120     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1121
1122     /* by default, we output a single frame */
1123     nb_frames = 1;
1124
1125     *frame_size = 0;
1126
1127     if(video_sync_method){
1128         double vdelta = sync_ipts - ost->sync_opts;
1129         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1130         if (vdelta < -1.1)
1131             nb_frames = 0;
1132         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1133             if(vdelta<=-0.6){
1134                 nb_frames=0;
1135             }else if(vdelta>0.6)
1136                 ost->sync_opts= lrintf(sync_ipts);
1137         }else if (vdelta > 1.1)
1138             nb_frames = lrintf(vdelta);
1139 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1140         if (nb_frames == 0){
1141             ++nb_frames_drop;
1142             if (verbose>2)
1143                 fprintf(stderr, "*** drop!\n");
1144         }else if (nb_frames > 1) {
1145             nb_frames_dup += nb_frames - 1;
1146             if (verbose>2)
1147                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1148         }
1149     }else
1150         ost->sync_opts= lrintf(sync_ipts);
1151
1152     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1153     if (nb_frames <= 0)
1154         return;
1155
1156     formatted_picture = in_picture;
1157     final_picture = formatted_picture;
1158
1159     resample_changed = ost->resample_width   != dec->width  ||
1160                        ost->resample_height  != dec->height ||
1161                        ost->resample_pix_fmt != dec->pix_fmt;
1162
1163     if (resample_changed) {
1164         av_log(NULL, AV_LOG_INFO,
1165                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1166                ist->file_index, ist->st->index,
1167                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1168                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1169         if(!ost->video_resample)
1170             exit_program(1);
1171     }
1172
1173 #if !CONFIG_AVFILTER
1174     if (ost->video_resample) {
1175         final_picture = &ost->pict_tmp;
1176         if (resample_changed) {
1177             /* initialize a new scaler context */
1178             sws_freeContext(ost->img_resample_ctx);
1179             ost->img_resample_ctx = sws_getContext(
1180                 ist->st->codec->width,
1181                 ist->st->codec->height,
1182                 ist->st->codec->pix_fmt,
1183                 ost->st->codec->width,
1184                 ost->st->codec->height,
1185                 ost->st->codec->pix_fmt,
1186                 ost->sws_flags, NULL, NULL, NULL);
1187             if (ost->img_resample_ctx == NULL) {
1188                 fprintf(stderr, "Cannot get resampling context\n");
1189                 exit_program(1);
1190             }
1191         }
1192         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1193               0, ost->resample_height, final_picture->data, final_picture->linesize);
1194     }
1195 #endif
1196
1197     /* duplicates frame if needed */
1198     for(i=0;i<nb_frames;i++) {
1199         AVPacket pkt;
1200         av_init_packet(&pkt);
1201         pkt.stream_index= ost->index;
1202
1203         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1204             /* raw pictures are written as AVPicture structure to
1205                avoid any copies. We support temorarily the older
1206                method. */
1207             AVFrame* old_frame = enc->coded_frame;
1208             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1209             pkt.data= (uint8_t *)final_picture;
1210             pkt.size=  sizeof(AVPicture);
1211             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1212             pkt.flags |= AV_PKT_FLAG_KEY;
1213
1214             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1215             enc->coded_frame = old_frame;
1216         } else {
1217             AVFrame big_picture;
1218
1219             big_picture= *final_picture;
1220             /* better than nothing: use input picture interlaced
1221                settings */
1222             big_picture.interlaced_frame = in_picture->interlaced_frame;
1223             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1224                 if(top_field_first == -1)
1225                     big_picture.top_field_first = in_picture->top_field_first;
1226                 else
1227                     big_picture.top_field_first = top_field_first;
1228             }
1229
1230             /* handles sameq here. This is not correct because it may
1231                not be a global option */
1232             big_picture.quality = quality;
1233             if(!me_threshold)
1234                 big_picture.pict_type = 0;
1235 //            big_picture.pts = AV_NOPTS_VALUE;
1236             big_picture.pts= ost->sync_opts;
1237 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1238 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1239             if (ost->forced_kf_index < ost->forced_kf_count &&
1240                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1241                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1242                 ost->forced_kf_index++;
1243             }
1244             ret = avcodec_encode_video(enc,
1245                                        bit_buffer, bit_buffer_size,
1246                                        &big_picture);
1247             if (ret < 0) {
1248                 fprintf(stderr, "Video encoding failed\n");
1249                 exit_program(1);
1250             }
1251
1252             if(ret>0){
1253                 pkt.data= bit_buffer;
1254                 pkt.size= ret;
1255                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1256                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1257 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1258    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1259    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1260
1261                 if(enc->coded_frame->key_frame)
1262                     pkt.flags |= AV_PKT_FLAG_KEY;
1263                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1264                 *frame_size = ret;
1265                 video_size += ret;
1266                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1267                 //        enc->frame_number-1, ret, enc->pict_type);
1268                 /* if two pass, output log */
1269                 if (ost->logfile && enc->stats_out) {
1270                     fprintf(ost->logfile, "%s", enc->stats_out);
1271                 }
1272             }
1273         }
1274         ost->sync_opts++;
1275         ost->frame_number++;
1276     }
1277 }
1278
1279 static double psnr(double d){
1280     return -10.0*log(d)/log(10.0);
1281 }
1282
1283 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1284                            int frame_size)
1285 {
1286     AVCodecContext *enc;
1287     int frame_number;
1288     double ti1, bitrate, avg_bitrate;
1289
1290     /* this is executed just the first time do_video_stats is called */
1291     if (!vstats_file) {
1292         vstats_file = fopen(vstats_filename, "w");
1293         if (!vstats_file) {
1294             perror("fopen");
1295             exit_program(1);
1296         }
1297     }
1298
1299     enc = ost->st->codec;
1300     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1301         frame_number = ost->frame_number;
1302         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1303         if (enc->flags&CODEC_FLAG_PSNR)
1304             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1305
1306         fprintf(vstats_file,"f_size= %6d ", frame_size);
1307         /* compute pts value */
1308         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1309         if (ti1 < 0.01)
1310             ti1 = 0.01;
1311
1312         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1313         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1314         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1315             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1316         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1317     }
1318 }
1319
1320 static void print_report(AVFormatContext **output_files,
1321                          OutputStream **ost_table, int nb_ostreams,
1322                          int is_last_report)
1323 {
1324     char buf[1024];
1325     OutputStream *ost;
1326     AVFormatContext *oc;
1327     int64_t total_size;
1328     AVCodecContext *enc;
1329     int frame_number, vid, i;
1330     double bitrate, ti1, pts;
1331     static int64_t last_time = -1;
1332     static int qp_histogram[52];
1333
1334     if (!is_last_report) {
1335         int64_t cur_time;
1336         /* display the report every 0.5 seconds */
1337         cur_time = av_gettime();
1338         if (last_time == -1) {
1339             last_time = cur_time;
1340             return;
1341         }
1342         if ((cur_time - last_time) < 500000)
1343             return;
1344         last_time = cur_time;
1345     }
1346
1347
1348     oc = output_files[0];
1349
1350     total_size = avio_size(oc->pb);
1351     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1352         total_size= avio_tell(oc->pb);
1353
1354     buf[0] = '\0';
1355     ti1 = 1e10;
1356     vid = 0;
1357     for(i=0;i<nb_ostreams;i++) {
1358         float q = -1;
1359         ost = ost_table[i];
1360         enc = ost->st->codec;
1361         if (!ost->st->stream_copy && enc->coded_frame)
1362             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1363         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1364             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1365         }
1366         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367             float t = (av_gettime()-timer_start) / 1000000.0;
1368
1369             frame_number = ost->frame_number;
1370             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1371                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1372             if(is_last_report)
1373                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1374             if(qp_hist){
1375                 int j;
1376                 int qp = lrintf(q);
1377                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1378                     qp_histogram[qp]++;
1379                 for(j=0; j<32; j++)
1380                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1381             }
1382             if (enc->flags&CODEC_FLAG_PSNR){
1383                 int j;
1384                 double error, error_sum=0;
1385                 double scale, scale_sum=0;
1386                 char type[3]= {'Y','U','V'};
1387                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1388                 for(j=0; j<3; j++){
1389                     if(is_last_report){
1390                         error= enc->error[j];
1391                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1392                     }else{
1393                         error= enc->coded_frame->error[j];
1394                         scale= enc->width*enc->height*255.0*255.0;
1395                     }
1396                     if(j) scale/=4;
1397                     error_sum += error;
1398                     scale_sum += scale;
1399                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1400                 }
1401                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1402             }
1403             vid = 1;
1404         }
1405         /* compute min output value */
1406         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1407         if ((pts < ti1) && (pts > 0))
1408             ti1 = pts;
1409     }
1410     if (ti1 < 0.01)
1411         ti1 = 0.01;
1412
1413     if (verbose > 0 || is_last_report) {
1414         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1415
1416         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1417             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1418             (double)total_size / 1024, ti1, bitrate);
1419
1420         if (nb_frames_dup || nb_frames_drop)
1421           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1422                   nb_frames_dup, nb_frames_drop);
1423
1424         if (verbose >= 0)
1425             fprintf(stderr, "%s    \r", buf);
1426
1427         fflush(stderr);
1428     }
1429
1430     if (is_last_report && verbose >= 0){
1431         int64_t raw= audio_size + video_size + extra_size;
1432         fprintf(stderr, "\n");
1433         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1434                 video_size/1024.0,
1435                 audio_size/1024.0,
1436                 extra_size/1024.0,
1437                 100.0*(total_size - raw)/raw
1438         );
1439     }
1440 }
1441
1442 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1443 {
1444     int fill_char = 0x00;
1445     if (sample_fmt == AV_SAMPLE_FMT_U8)
1446         fill_char = 0x80;
1447     memset(buf, fill_char, size);
1448 }
1449
1450 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1451 static int output_packet(InputStream *ist, int ist_index,
1452                          OutputStream **ost_table, int nb_ostreams,
1453                          const AVPacket *pkt)
1454 {
1455     AVFormatContext *os;
1456     OutputStream *ost;
1457     int ret, i;
1458     int got_output;
1459     AVFrame picture;
1460     void *buffer_to_free = NULL;
1461     static unsigned int samples_size= 0;
1462     AVSubtitle subtitle, *subtitle_to_free;
1463     int64_t pkt_pts = AV_NOPTS_VALUE;
1464 #if CONFIG_AVFILTER
1465     int frame_available;
1466 #endif
1467     float quality;
1468
1469     AVPacket avpkt;
1470     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1471
1472     if(ist->next_pts == AV_NOPTS_VALUE)
1473         ist->next_pts= ist->pts;
1474
1475     if (pkt == NULL) {
1476         /* EOF handling */
1477         av_init_packet(&avpkt);
1478         avpkt.data = NULL;
1479         avpkt.size = 0;
1480         goto handle_eof;
1481     } else {
1482         avpkt = *pkt;
1483     }
1484
1485     if(pkt->dts != AV_NOPTS_VALUE)
1486         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1487     if(pkt->pts != AV_NOPTS_VALUE)
1488         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1489
1490     //while we have more to decode or while the decoder did output something on EOF
1491     while (avpkt.size > 0 || (!pkt && got_output)) {
1492         uint8_t *data_buf, *decoded_data_buf;
1493         int data_size, decoded_data_size;
1494     handle_eof:
1495         ist->pts= ist->next_pts;
1496
1497         if(avpkt.size && avpkt.size != pkt->size &&
1498            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1499             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1500             ist->showed_multi_packet_warning=1;
1501         }
1502
1503         /* decode the packet if needed */
1504         decoded_data_buf = NULL; /* fail safe */
1505         decoded_data_size= 0;
1506         data_buf  = avpkt.data;
1507         data_size = avpkt.size;
1508         subtitle_to_free = NULL;
1509         if (ist->decoding_needed) {
1510             switch(ist->st->codec->codec_type) {
1511             case AVMEDIA_TYPE_AUDIO:{
1512                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1513                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1514                     av_free(samples);
1515                     samples= av_malloc(samples_size);
1516                 }
1517                 decoded_data_size= samples_size;
1518                     /* XXX: could avoid copy if PCM 16 bits with same
1519                        endianness as CPU */
1520                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1521                                             &avpkt);
1522                 if (ret < 0)
1523                     return ret;
1524                 avpkt.data += ret;
1525                 avpkt.size -= ret;
1526                 data_size   = ret;
1527                 got_output  = decoded_data_size > 0;
1528                 /* Some bug in mpeg audio decoder gives */
1529                 /* decoded_data_size < 0, it seems they are overflows */
1530                 if (!got_output) {
1531                     /* no audio frame */
1532                     continue;
1533                 }
1534                 decoded_data_buf = (uint8_t *)samples;
1535                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1536                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1537                 break;}
1538             case AVMEDIA_TYPE_VIDEO:
1539                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1540                     /* XXX: allocate picture correctly */
1541                     avcodec_get_frame_defaults(&picture);
1542                     avpkt.pts = pkt_pts;
1543                     avpkt.dts = ist->pts;
1544                     pkt_pts = AV_NOPTS_VALUE;
1545
1546                     ret = avcodec_decode_video2(ist->st->codec,
1547                                                 &picture, &got_output, &avpkt);
1548                     quality = same_quality ? picture.quality : 0;
1549                     if (ret < 0)
1550                         return ret;
1551                     if (!got_output) {
1552                         /* no picture yet */
1553                         goto discard_packet;
1554                     }
1555                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1556                     if (ist->st->codec->time_base.num != 0) {
1557                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1558                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1559                                           ist->st->codec->time_base.num * ticks) /
1560                             ist->st->codec->time_base.den;
1561                     }
1562                     avpkt.size = 0;
1563                     buffer_to_free = NULL;
1564                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1565                     break;
1566             case AVMEDIA_TYPE_SUBTITLE:
1567                 ret = avcodec_decode_subtitle2(ist->st->codec,
1568                                                &subtitle, &got_output, &avpkt);
1569                 if (ret < 0)
1570                     return ret;
1571                 if (!got_output) {
1572                     goto discard_packet;
1573                 }
1574                 subtitle_to_free = &subtitle;
1575                 avpkt.size = 0;
1576                 break;
1577             default:
1578                 return -1;
1579             }
1580         } else {
1581             switch(ist->st->codec->codec_type) {
1582             case AVMEDIA_TYPE_AUDIO:
1583                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1584                     ist->st->codec->sample_rate;
1585                 break;
1586             case AVMEDIA_TYPE_VIDEO:
1587                 if (ist->st->codec->time_base.num != 0) {
1588                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1589                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1590                                       ist->st->codec->time_base.num * ticks) /
1591                         ist->st->codec->time_base.den;
1592                 }
1593                 break;
1594             }
1595             ret = avpkt.size;
1596             avpkt.size = 0;
1597         }
1598
1599 #if CONFIG_AVFILTER
1600         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1601             for (i = 0; i < nb_ostreams; i++) {
1602                 ost = ost_table[i];
1603                 if (ost->input_video_filter && ost->source_index == ist_index) {
1604                     AVRational sar;
1605                     if (ist->st->sample_aspect_ratio.num)
1606                         sar = ist->st->sample_aspect_ratio;
1607                     else
1608                         sar = ist->st->codec->sample_aspect_ratio;
1609                     // add it to be filtered
1610                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1611                                              ist->pts,
1612                                              sar);
1613                 }
1614             }
1615         }
1616 #endif
1617
1618         // preprocess audio (volume)
1619         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1620             if (audio_volume != 256) {
1621                 short *volp;
1622                 volp = samples;
1623                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1624                     int v = ((*volp) * audio_volume + 128) >> 8;
1625                     if (v < -32768) v = -32768;
1626                     if (v >  32767) v = 32767;
1627                     *volp++ = v;
1628                 }
1629             }
1630         }
1631
1632         /* frame rate emulation */
1633         if (rate_emu) {
1634             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1635             int64_t now = av_gettime() - ist->start;
1636             if (pts > now)
1637                 usleep(pts - now);
1638         }
1639         /* if output time reached then transcode raw format,
1640            encode packets and output them */
1641         if (start_time == 0 || ist->pts >= start_time)
1642             for(i=0;i<nb_ostreams;i++) {
1643                 int frame_size;
1644
1645                 ost = ost_table[i];
1646                 if (ost->source_index == ist_index) {
1647 #if CONFIG_AVFILTER
1648                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1649                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1650                 while (frame_available) {
1651                     AVRational ist_pts_tb;
1652                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1653                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1654                     if (ost->picref)
1655                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1656 #endif
1657                     os = output_files[ost->file_index];
1658
1659                     /* set the input output pts pairs */
1660                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1661
1662                     if (ost->encoding_needed) {
1663                         av_assert0(ist->decoding_needed);
1664                         switch(ost->st->codec->codec_type) {
1665                         case AVMEDIA_TYPE_AUDIO:
1666                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1667                             break;
1668                         case AVMEDIA_TYPE_VIDEO:
1669 #if CONFIG_AVFILTER
1670                             if (ost->picref->video && !ost->frame_aspect_ratio)
1671                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1672 #endif
1673                             do_video_out(os, ost, ist, &picture, &frame_size,
1674                                          same_quality ? quality : ost->st->codec->global_quality);
1675                             if (vstats_filename && frame_size)
1676                                 do_video_stats(os, ost, frame_size);
1677                             break;
1678                         case AVMEDIA_TYPE_SUBTITLE:
1679                             do_subtitle_out(os, ost, ist, &subtitle,
1680                                             pkt->pts);
1681                             break;
1682                         default:
1683                             abort();
1684                         }
1685                     } else {
1686                         AVFrame avframe; //FIXME/XXX remove this
1687                         AVPacket opkt;
1688                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1689
1690                         av_init_packet(&opkt);
1691
1692                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1693 #if !CONFIG_AVFILTER
1694                             continue;
1695 #else
1696                             goto cont;
1697 #endif
1698
1699                         /* no reencoding needed : output the packet directly */
1700                         /* force the input stream PTS */
1701
1702                         avcodec_get_frame_defaults(&avframe);
1703                         ost->st->codec->coded_frame= &avframe;
1704                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1705
1706                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1707                             audio_size += data_size;
1708                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1709                             video_size += data_size;
1710                             ost->sync_opts++;
1711                         }
1712
1713                         opkt.stream_index= ost->index;
1714                         if(pkt->pts != AV_NOPTS_VALUE)
1715                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1716                         else
1717                             opkt.pts= AV_NOPTS_VALUE;
1718
1719                         if (pkt->dts == AV_NOPTS_VALUE)
1720                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1721                         else
1722                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1723                         opkt.dts -= ost_tb_start_time;
1724
1725                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1726                         opkt.flags= pkt->flags;
1727
1728                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1729                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1730                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1731                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1732                            ) {
1733                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1734                                 opkt.destruct= av_destruct_packet;
1735                         } else {
1736                             opkt.data = data_buf;
1737                             opkt.size = data_size;
1738                         }
1739
1740                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1741                         ost->st->codec->frame_number++;
1742                         ost->frame_number++;
1743                         av_free_packet(&opkt);
1744                     }
1745 #if CONFIG_AVFILTER
1746                     cont:
1747                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1748                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1749                     if (ost->picref)
1750                         avfilter_unref_buffer(ost->picref);
1751                 }
1752 #endif
1753                 }
1754             }
1755
1756         av_free(buffer_to_free);
1757         /* XXX: allocate the subtitles in the codec ? */
1758         if (subtitle_to_free) {
1759             avsubtitle_free(subtitle_to_free);
1760             subtitle_to_free = NULL;
1761         }
1762     }
1763  discard_packet:
1764     if (pkt == NULL) {
1765         /* EOF handling */
1766
1767         for(i=0;i<nb_ostreams;i++) {
1768             ost = ost_table[i];
1769             if (ost->source_index == ist_index) {
1770                 AVCodecContext *enc= ost->st->codec;
1771                 os = output_files[ost->file_index];
1772
1773                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1774                     continue;
1775                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1776                     continue;
1777
1778                 if (ost->encoding_needed) {
1779                     for(;;) {
1780                         AVPacket pkt;
1781                         int fifo_bytes;
1782                         av_init_packet(&pkt);
1783                         pkt.stream_index= ost->index;
1784
1785                         switch(ost->st->codec->codec_type) {
1786                         case AVMEDIA_TYPE_AUDIO:
1787                             fifo_bytes = av_fifo_size(ost->fifo);
1788                             ret = 0;
1789                             /* encode any samples remaining in fifo */
1790                             if (fifo_bytes > 0) {
1791                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1792                                 int fs_tmp = enc->frame_size;
1793
1794                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1795                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1796                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1797                                 } else { /* pad */
1798                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1799                                     if (allocated_audio_buf_size < frame_bytes)
1800                                         exit_program(1);
1801                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1802                                 }
1803
1804                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1805                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1806                                                           ost->st->time_base.num, enc->sample_rate);
1807                                 enc->frame_size = fs_tmp;
1808                             }
1809                             if(ret <= 0) {
1810                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1811                             }
1812                             if (ret < 0) {
1813                                 fprintf(stderr, "Audio encoding failed\n");
1814                                 exit_program(1);
1815                             }
1816                             audio_size += ret;
1817                             pkt.flags |= AV_PKT_FLAG_KEY;
1818                             break;
1819                         case AVMEDIA_TYPE_VIDEO:
1820                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1821                             if (ret < 0) {
1822                                 fprintf(stderr, "Video encoding failed\n");
1823                                 exit_program(1);
1824                             }
1825                             video_size += ret;
1826                             if(enc->coded_frame && enc->coded_frame->key_frame)
1827                                 pkt.flags |= AV_PKT_FLAG_KEY;
1828                             if (ost->logfile && enc->stats_out) {
1829                                 fprintf(ost->logfile, "%s", enc->stats_out);
1830                             }
1831                             break;
1832                         default:
1833                             ret=-1;
1834                         }
1835
1836                         if(ret<=0)
1837                             break;
1838                         pkt.data= bit_buffer;
1839                         pkt.size= ret;
1840                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1841                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1842                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1843                     }
1844                 }
1845             }
1846         }
1847     }
1848
1849     return 0;
1850 }
1851
1852 static void print_sdp(AVFormatContext **avc, int n)
1853 {
1854     char sdp[2048];
1855
1856     av_sdp_create(avc, n, sdp, sizeof(sdp));
1857     printf("SDP:\n%s\n", sdp);
1858     fflush(stdout);
1859 }
1860
1861 static int copy_chapters(int infile, int outfile)
1862 {
1863     AVFormatContext *is = input_files[infile].ctx;
1864     AVFormatContext *os = output_files[outfile];
1865     int i;
1866
1867     for (i = 0; i < is->nb_chapters; i++) {
1868         AVChapter *in_ch = is->chapters[i], *out_ch;
1869         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1870                                       AV_TIME_BASE_Q, in_ch->time_base);
1871         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1872                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1873
1874
1875         if (in_ch->end < ts_off)
1876             continue;
1877         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1878             break;
1879
1880         out_ch = av_mallocz(sizeof(AVChapter));
1881         if (!out_ch)
1882             return AVERROR(ENOMEM);
1883
1884         out_ch->id        = in_ch->id;
1885         out_ch->time_base = in_ch->time_base;
1886         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1887         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1888
1889         if (metadata_chapters_autocopy)
1890             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1891
1892         os->nb_chapters++;
1893         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1894         if (!os->chapters)
1895             return AVERROR(ENOMEM);
1896         os->chapters[os->nb_chapters - 1] = out_ch;
1897     }
1898     return 0;
1899 }
1900
1901 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1902                                     AVCodecContext *avctx)
1903 {
1904     char *p;
1905     int n = 1, i;
1906     int64_t t;
1907
1908     for (p = kf; *p; p++)
1909         if (*p == ',')
1910             n++;
1911     ost->forced_kf_count = n;
1912     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1913     if (!ost->forced_kf_pts) {
1914         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1915         exit_program(1);
1916     }
1917     for (i = 0; i < n; i++) {
1918         p = i ? strchr(p, ',') + 1 : kf;
1919         t = parse_time_or_die("force_key_frames", p, 1);
1920         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1921     }
1922 }
1923
1924 /*
1925  * The following code is the main loop of the file converter
1926  */
1927 static int transcode(AVFormatContext **output_files,
1928                      int nb_output_files,
1929                      InputFile *input_files,
1930                      int nb_input_files,
1931                      StreamMap *stream_maps, int nb_stream_maps)
1932 {
1933     int ret = 0, i, j, k, n, nb_ostreams = 0;
1934     AVFormatContext *is, *os;
1935     AVCodecContext *codec, *icodec;
1936     OutputStream *ost, **ost_table = NULL;
1937     InputStream *ist;
1938     char error[1024];
1939     int want_sdp = 1;
1940     uint8_t no_packet[MAX_FILES]={0};
1941     int no_packet_count=0;
1942
1943     if (rate_emu)
1944         for (i = 0; i < nb_input_streams; i++)
1945             input_streams[i].start = av_gettime();
1946
1947     /* output stream init */
1948     nb_ostreams = 0;
1949     for(i=0;i<nb_output_files;i++) {
1950         os = output_files[i];
1951         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1952             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1953             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1954             ret = AVERROR(EINVAL);
1955             goto fail;
1956         }
1957         nb_ostreams += os->nb_streams;
1958     }
1959     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1960         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1961         ret = AVERROR(EINVAL);
1962         goto fail;
1963     }
1964
1965     /* Sanity check the mapping args -- do the input files & streams exist? */
1966     for(i=0;i<nb_stream_maps;i++) {
1967         int fi = stream_maps[i].file_index;
1968         int si = stream_maps[i].stream_index;
1969
1970         if (fi < 0 || fi > nb_input_files - 1 ||
1971             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1972             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1973             ret = AVERROR(EINVAL);
1974             goto fail;
1975         }
1976         fi = stream_maps[i].sync_file_index;
1977         si = stream_maps[i].sync_stream_index;
1978         if (fi < 0 || fi > nb_input_files - 1 ||
1979             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1980             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1981             ret = AVERROR(EINVAL);
1982             goto fail;
1983         }
1984     }
1985
1986     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1987     if (!ost_table)
1988         goto fail;
1989     n = 0;
1990     for(k=0;k<nb_output_files;k++) {
1991         os = output_files[k];
1992         for(i=0;i<os->nb_streams;i++,n++) {
1993             int found;
1994             ost = ost_table[n] = output_streams_for_file[k][i];
1995             if (nb_stream_maps > 0) {
1996                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
1997                     stream_maps[n].stream_index;
1998
1999                 /* Sanity check that the stream types match */
2000                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2001                     int i= ost->file_index;
2002                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2003                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2004                         stream_maps[n].file_index, stream_maps[n].stream_index,
2005                         ost->file_index, ost->index);
2006                     exit_program(1);
2007                 }
2008
2009             } else {
2010                 int best_nb_frames=-1;
2011                 /* get corresponding input stream index : we select the first one with the right type */
2012                 found = 0;
2013                 for (j = 0; j < nb_input_streams; j++) {
2014                     int skip=0;
2015                     ist = &input_streams[j];
2016                     if(opt_programid){
2017                         int pi,si;
2018                         AVFormatContext *f = input_files[ist->file_index].ctx;
2019                         skip=1;
2020                         for(pi=0; pi<f->nb_programs; pi++){
2021                             AVProgram *p= f->programs[pi];
2022                             if(p->id == opt_programid)
2023                                 for(si=0; si<p->nb_stream_indexes; si++){
2024                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2025                                         skip=0;
2026                                 }
2027                         }
2028                     }
2029                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2030                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2031                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2032                             best_nb_frames= ist->st->codec_info_nb_frames;
2033                             ost->source_index = j;
2034                             found = 1;
2035                         }
2036                     }
2037                 }
2038
2039                 if (!found) {
2040                     if(! opt_programid) {
2041                         /* try again and reuse existing stream */
2042                         for (j = 0; j < nb_input_streams; j++) {
2043                             ist = &input_streams[j];
2044                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2045                                 && ist->st->discard != AVDISCARD_ALL) {
2046                                 ost->source_index = j;
2047                                 found = 1;
2048                             }
2049                         }
2050                     }
2051                     if (!found) {
2052                         int i= ost->file_index;
2053                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2054                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2055                                 ost->file_index, ost->index);
2056                         exit_program(1);
2057                     }
2058                 }
2059             }
2060             ist = &input_streams[ost->source_index];
2061             ist->discard = 0;
2062             ost->sync_ist = (nb_stream_maps > 0) ?
2063                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2064                          stream_maps[n].sync_stream_index] : ist;
2065         }
2066     }
2067
2068     /* for each output stream, we compute the right encoding parameters */
2069     for(i=0;i<nb_ostreams;i++) {
2070         ost = ost_table[i];
2071         os = output_files[ost->file_index];
2072         ist = &input_streams[ost->source_index];
2073
2074         codec = ost->st->codec;
2075         icodec = ist->st->codec;
2076
2077         if (metadata_streams_autocopy)
2078             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2079                          AV_DICT_DONT_OVERWRITE);
2080
2081         ost->st->disposition = ist->st->disposition;
2082         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2083         codec->chroma_sample_location = icodec->chroma_sample_location;
2084
2085         if (ost->st->stream_copy) {
2086             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2087
2088             if (extra_size > INT_MAX)
2089                 goto fail;
2090
2091             /* if stream_copy is selected, no need to decode or encode */
2092             codec->codec_id = icodec->codec_id;
2093             codec->codec_type = icodec->codec_type;
2094
2095             if(!codec->codec_tag){
2096                 if(   !os->oformat->codec_tag
2097                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2098                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2099                     codec->codec_tag = icodec->codec_tag;
2100             }
2101
2102             codec->bit_rate = icodec->bit_rate;
2103             codec->rc_max_rate    = icodec->rc_max_rate;
2104             codec->rc_buffer_size = icodec->rc_buffer_size;
2105             codec->extradata= av_mallocz(extra_size);
2106             if (!codec->extradata)
2107                 goto fail;
2108             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2109             codec->extradata_size= icodec->extradata_size;
2110             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){
2111                 codec->time_base = icodec->time_base;
2112                 codec->time_base.num *= icodec->ticks_per_frame;
2113                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2114                           codec->time_base.num, codec->time_base.den, INT_MAX);
2115             }else
2116                 codec->time_base = ist->st->time_base;
2117             switch(codec->codec_type) {
2118             case AVMEDIA_TYPE_AUDIO:
2119                 if(audio_volume != 256) {
2120                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2121                     exit_program(1);
2122                 }
2123                 codec->channel_layout = icodec->channel_layout;
2124                 codec->sample_rate = icodec->sample_rate;
2125                 codec->channels = icodec->channels;
2126                 codec->frame_size = icodec->frame_size;
2127                 codec->audio_service_type = icodec->audio_service_type;
2128                 codec->block_align= icodec->block_align;
2129                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2130                     codec->block_align= 0;
2131                 if(codec->codec_id == CODEC_ID_AC3)
2132                     codec->block_align= 0;
2133                 break;
2134             case AVMEDIA_TYPE_VIDEO:
2135                 codec->pix_fmt = icodec->pix_fmt;
2136                 codec->width = icodec->width;
2137                 codec->height = icodec->height;
2138                 codec->has_b_frames = icodec->has_b_frames;
2139                 if (!codec->sample_aspect_ratio.num) {
2140                     codec->sample_aspect_ratio =
2141                     ost->st->sample_aspect_ratio =
2142                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2143                         ist->st->codec->sample_aspect_ratio.num ?
2144                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2145                 }
2146                 break;
2147             case AVMEDIA_TYPE_SUBTITLE:
2148                 codec->width = icodec->width;
2149                 codec->height = icodec->height;
2150                 break;
2151             case AVMEDIA_TYPE_DATA:
2152                 break;
2153             default:
2154                 abort();
2155             }
2156         } else {
2157             if (!ost->enc)
2158                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2159             switch(codec->codec_type) {
2160             case AVMEDIA_TYPE_AUDIO:
2161                 ost->fifo= av_fifo_alloc(1024);
2162                 if(!ost->fifo)
2163                     goto fail;
2164                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2165                 if (!codec->sample_rate) {
2166                     codec->sample_rate = icodec->sample_rate;
2167                     if (icodec->lowres)
2168                         codec->sample_rate >>= icodec->lowres;
2169                 }
2170                 choose_sample_rate(ost->st, ost->enc);
2171                 codec->time_base = (AVRational){1, codec->sample_rate};
2172                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2173                     codec->sample_fmt = icodec->sample_fmt;
2174                 choose_sample_fmt(ost->st, ost->enc);
2175                 if (!codec->channels)
2176                     codec->channels = icodec->channels;
2177                 codec->channel_layout = icodec->channel_layout;
2178                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2179                     codec->channel_layout = 0;
2180                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2181                 icodec->request_channels = codec->channels;
2182                 ist->decoding_needed = 1;
2183                 ost->encoding_needed = 1;
2184                 ost->resample_sample_fmt  = icodec->sample_fmt;
2185                 ost->resample_sample_rate = icodec->sample_rate;
2186                 ost->resample_channels    = icodec->channels;
2187                 break;
2188             case AVMEDIA_TYPE_VIDEO:
2189                 if (codec->pix_fmt == PIX_FMT_NONE)
2190                     codec->pix_fmt = icodec->pix_fmt;
2191                 choose_pixel_fmt(ost->st, ost->enc);
2192
2193                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2194                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2195                     exit_program(1);
2196                 }
2197
2198                 if (!codec->width || !codec->height) {
2199                     codec->width  = icodec->width;
2200                     codec->height = icodec->height;
2201                 }
2202
2203                 ost->video_resample = codec->width   != icodec->width  ||
2204                                       codec->height  != icodec->height ||
2205                                       codec->pix_fmt != icodec->pix_fmt;
2206                 if (ost->video_resample) {
2207 #if !CONFIG_AVFILTER
2208                     avcodec_get_frame_defaults(&ost->pict_tmp);
2209                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2210                                        codec->width, codec->height)) {
2211                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2212                         exit_program(1);
2213                     }
2214                     ost->img_resample_ctx = sws_getContext(
2215                         icodec->width,
2216                         icodec->height,
2217                         icodec->pix_fmt,
2218                         codec->width,
2219                         codec->height,
2220                         codec->pix_fmt,
2221                         ost->sws_flags, NULL, NULL, NULL);
2222                     if (ost->img_resample_ctx == NULL) {
2223                         fprintf(stderr, "Cannot get resampling context\n");
2224                         exit_program(1);
2225                     }
2226 #endif
2227                     codec->bits_per_raw_sample= 0;
2228                 }
2229
2230                 ost->resample_height = icodec->height;
2231                 ost->resample_width  = icodec->width;
2232                 ost->resample_pix_fmt= icodec->pix_fmt;
2233                 ost->encoding_needed = 1;
2234                 ist->decoding_needed = 1;
2235
2236                 if (!ost->frame_rate.num)
2237                     ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2238                 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2239                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2240                     ost->frame_rate = ost->enc->supported_framerates[idx];
2241                 }
2242                 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2243
2244 #if CONFIG_AVFILTER
2245                 if (configure_video_filters(ist, ost)) {
2246                     fprintf(stderr, "Error opening filters!\n");
2247                     exit(1);
2248                 }
2249 #endif
2250                 break;
2251             case AVMEDIA_TYPE_SUBTITLE:
2252                 ost->encoding_needed = 1;
2253                 ist->decoding_needed = 1;
2254                 break;
2255             default:
2256                 abort();
2257                 break;
2258             }
2259             /* two pass mode */
2260             if (ost->encoding_needed &&
2261                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2262                 char logfilename[1024];
2263                 FILE *f;
2264
2265                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2266                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2267                          i);
2268                 if (codec->flags & CODEC_FLAG_PASS1) {
2269                     f = fopen(logfilename, "wb");
2270                     if (!f) {
2271                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2272                         exit_program(1);
2273                     }
2274                     ost->logfile = f;
2275                 } else {
2276                     char  *logbuffer;
2277                     size_t logbuffer_size;
2278                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2279                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2280                         exit_program(1);
2281                     }
2282                     codec->stats_in = logbuffer;
2283                 }
2284             }
2285         }
2286         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2287             int size= codec->width * codec->height;
2288             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2289         }
2290     }
2291
2292     if (!bit_buffer)
2293         bit_buffer = av_malloc(bit_buffer_size);
2294     if (!bit_buffer) {
2295         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2296                 bit_buffer_size);
2297         ret = AVERROR(ENOMEM);
2298         goto fail;
2299     }
2300
2301     /* open each encoder */
2302     for(i=0;i<nb_ostreams;i++) {
2303         ost = ost_table[i];
2304         if (ost->encoding_needed) {
2305             AVCodec *codec = ost->enc;
2306             AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2307             if (!codec) {
2308                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2309                          ost->st->codec->codec_id, ost->file_index, ost->index);
2310                 ret = AVERROR(EINVAL);
2311                 goto dump_format;
2312             }
2313             if (dec->subtitle_header) {
2314                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2315                 if (!ost->st->codec->subtitle_header) {
2316                     ret = AVERROR(ENOMEM);
2317                     goto dump_format;
2318                 }
2319                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2320                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2321             }
2322             if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2323                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2324                         ost->file_index, ost->index);
2325                 ret = AVERROR(EINVAL);
2326                 goto dump_format;
2327             }
2328             assert_codec_experimental(ost->st->codec, 1);
2329             assert_avoptions(ost->opts);
2330             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2331                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2332                                              "It takes bits/s as argument, not kbits/s\n");
2333             extra_size += ost->st->codec->extradata_size;
2334         }
2335     }
2336
2337     /* open each decoder */
2338     for (i = 0; i < nb_input_streams; i++) {
2339         ist = &input_streams[i];
2340         if (ist->decoding_needed) {
2341             AVCodec *codec = ist->dec;
2342             if (!codec)
2343                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2344             if (!codec) {
2345                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2346                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2347                 ret = AVERROR(EINVAL);
2348                 goto dump_format;
2349             }
2350
2351             /* update requested sample format for the decoder based on the
2352                corresponding encoder sample format */
2353             for (j = 0; j < nb_ostreams; j++) {
2354                 ost = ost_table[j];
2355                 if (ost->source_index == i) {
2356                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2357                     break;
2358                 }
2359             }
2360
2361             if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2362                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2363                         ist->file_index, ist->st->index);
2364                 ret = AVERROR(EINVAL);
2365                 goto dump_format;
2366             }
2367             assert_codec_experimental(ist->st->codec, 0);
2368             assert_avoptions(ost->opts);
2369         }
2370     }
2371
2372     /* init pts */
2373     for (i = 0; i < nb_input_streams; i++) {
2374         AVStream *st;
2375         ist = &input_streams[i];
2376         st= ist->st;
2377         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2378         ist->next_pts = AV_NOPTS_VALUE;
2379         init_pts_correction(&ist->pts_ctx);
2380         ist->is_start = 1;
2381     }
2382
2383     /* set meta data information from input file if required */
2384     for (i=0;i<nb_meta_data_maps;i++) {
2385         AVFormatContext *files[2];
2386         AVDictionary    **meta[2];
2387         int j;
2388
2389 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2390         if ((index) < 0 || (index) >= (nb_elems)) {\
2391             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2392                      (desc), (index));\
2393             ret = AVERROR(EINVAL);\
2394             goto dump_format;\
2395         }
2396
2397         int out_file_index = meta_data_maps[i][0].file;
2398         int in_file_index = meta_data_maps[i][1].file;
2399         if (in_file_index < 0 || out_file_index < 0)
2400             continue;
2401         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2402         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2403
2404         files[0] = output_files[out_file_index];
2405         files[1] = input_files[in_file_index].ctx;
2406
2407         for (j = 0; j < 2; j++) {
2408             MetadataMap *map = &meta_data_maps[i][j];
2409
2410             switch (map->type) {
2411             case 'g':
2412                 meta[j] = &files[j]->metadata;
2413                 break;
2414             case 's':
2415                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2416                 meta[j] = &files[j]->streams[map->index]->metadata;
2417                 break;
2418             case 'c':
2419                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2420                 meta[j] = &files[j]->chapters[map->index]->metadata;
2421                 break;
2422             case 'p':
2423                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2424                 meta[j] = &files[j]->programs[map->index]->metadata;
2425                 break;
2426             }
2427         }
2428
2429         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2430     }
2431
2432     /* copy global metadata by default */
2433     if (metadata_global_autocopy) {
2434
2435         for (i = 0; i < nb_output_files; i++)
2436             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2437                          AV_DICT_DONT_OVERWRITE);
2438     }
2439
2440     /* copy chapters according to chapter maps */
2441     for (i = 0; i < nb_chapter_maps; i++) {
2442         int infile  = chapter_maps[i].in_file;
2443         int outfile = chapter_maps[i].out_file;
2444
2445         if (infile < 0 || outfile < 0)
2446             continue;
2447         if (infile >= nb_input_files) {
2448             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2449             ret = AVERROR(EINVAL);
2450             goto dump_format;
2451         }
2452         if (outfile >= nb_output_files) {
2453             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2454             ret = AVERROR(EINVAL);
2455             goto dump_format;
2456         }
2457         copy_chapters(infile, outfile);
2458     }
2459
2460     /* copy chapters from the first input file that has them*/
2461     if (!nb_chapter_maps)
2462         for (i = 0; i < nb_input_files; i++) {
2463             if (!input_files[i].ctx->nb_chapters)
2464                 continue;
2465
2466             for (j = 0; j < nb_output_files; j++)
2467                 if ((ret = copy_chapters(i, j)) < 0)
2468                     goto dump_format;
2469             break;
2470         }
2471
2472     /* open files and write file headers */
2473     for(i=0;i<nb_output_files;i++) {
2474         os = output_files[i];
2475         if (avformat_write_header(os, &output_opts[i]) < 0) {
2476             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2477             ret = AVERROR(EINVAL);
2478             goto dump_format;
2479         }
2480         assert_avoptions(output_opts[i]);
2481         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2482             want_sdp = 0;
2483         }
2484     }
2485
2486  dump_format:
2487     /* dump the file output parameters - cannot be done before in case
2488        of stream copy */
2489     for(i=0;i<nb_output_files;i++) {
2490         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2491     }
2492
2493     /* dump the stream mapping */
2494     if (verbose >= 0) {
2495         fprintf(stderr, "Stream mapping:\n");
2496         for(i=0;i<nb_ostreams;i++) {
2497             ost = ost_table[i];
2498             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2499                     input_streams[ost->source_index].file_index,
2500                     input_streams[ost->source_index].st->index,
2501                     ost->file_index,
2502                     ost->index);
2503             if (ost->sync_ist != &input_streams[ost->source_index])
2504                 fprintf(stderr, " [sync #%d.%d]",
2505                         ost->sync_ist->file_index,
2506                         ost->sync_ist->st->index);
2507             fprintf(stderr, "\n");
2508         }
2509     }
2510
2511     if (ret) {
2512         fprintf(stderr, "%s\n", error);
2513         goto fail;
2514     }
2515
2516     if (want_sdp) {
2517         print_sdp(output_files, nb_output_files);
2518     }
2519
2520     if (verbose >= 0)
2521         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2522     term_init();
2523
2524     timer_start = av_gettime();
2525
2526     for(; received_sigterm == 0;) {
2527         int file_index, ist_index;
2528         AVPacket pkt;
2529         double ipts_min;
2530         double opts_min;
2531
2532     redo:
2533         ipts_min= 1e100;
2534         opts_min= 1e100;
2535
2536         /* select the stream that we must read now by looking at the
2537            smallest output pts */
2538         file_index = -1;
2539         for(i=0;i<nb_ostreams;i++) {
2540             double ipts, opts;
2541             ost = ost_table[i];
2542             os = output_files[ost->file_index];
2543             ist = &input_streams[ost->source_index];
2544             if(ist->is_past_recording_time || no_packet[ist->file_index])
2545                 continue;
2546                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2547             ipts = (double)ist->pts;
2548             if (!input_files[ist->file_index].eof_reached){
2549                 if(ipts < ipts_min) {
2550                     ipts_min = ipts;
2551                     if(input_sync ) file_index = ist->file_index;
2552                 }
2553                 if(opts < opts_min) {
2554                     opts_min = opts;
2555                     if(!input_sync) file_index = ist->file_index;
2556                 }
2557             }
2558             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2559                 file_index= -1;
2560                 break;
2561             }
2562         }
2563         /* if none, if is finished */
2564         if (file_index < 0) {
2565             if(no_packet_count){
2566                 no_packet_count=0;
2567                 memset(no_packet, 0, sizeof(no_packet));
2568                 usleep(10000);
2569                 continue;
2570             }
2571             break;
2572         }
2573
2574         /* finish if limit size exhausted */
2575         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2576             break;
2577
2578         /* read a frame from it and output it in the fifo */
2579         is = input_files[file_index].ctx;
2580         ret= av_read_frame(is, &pkt);
2581         if(ret == AVERROR(EAGAIN)){
2582             no_packet[file_index]=1;
2583             no_packet_count++;
2584             continue;
2585         }
2586         if (ret < 0) {
2587             input_files[file_index].eof_reached = 1;
2588             if (opt_shortest)
2589                 break;
2590             else
2591                 continue;
2592         }
2593
2594         no_packet_count=0;
2595         memset(no_packet, 0, sizeof(no_packet));
2596
2597         if (do_pkt_dump) {
2598             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2599                              is->streams[pkt.stream_index]);
2600         }
2601         /* the following test is needed in case new streams appear
2602            dynamically in stream : we ignore them */
2603         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2604             goto discard_packet;
2605         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2606         ist = &input_streams[ist_index];
2607         if (ist->discard)
2608             goto discard_packet;
2609
2610         if (pkt.dts != AV_NOPTS_VALUE)
2611             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2612         if (pkt.pts != AV_NOPTS_VALUE)
2613             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2614
2615         if (ist->ts_scale) {
2616             if(pkt.pts != AV_NOPTS_VALUE)
2617                 pkt.pts *= ist->ts_scale;
2618             if(pkt.dts != AV_NOPTS_VALUE)
2619                 pkt.dts *= ist->ts_scale;
2620         }
2621
2622 //        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);
2623         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2624             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2625             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2626             int64_t delta= pkt_dts - ist->next_pts;
2627             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2628                 input_files[ist->file_index].ts_offset -= delta;
2629                 if (verbose > 2)
2630                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2631                             delta, input_files[ist->file_index].ts_offset);
2632                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2633                 if(pkt.pts != AV_NOPTS_VALUE)
2634                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2635             }
2636         }
2637
2638         /* finish if recording time exhausted */
2639         if (recording_time != INT64_MAX &&
2640             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2641             ist->is_past_recording_time = 1;
2642             goto discard_packet;
2643         }
2644
2645         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2646         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2647
2648             if (verbose >= 0)
2649                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2650                         ist->file_index, ist->st->index);
2651             if (exit_on_error)
2652                 exit_program(1);
2653             av_free_packet(&pkt);
2654             goto redo;
2655         }
2656
2657     discard_packet:
2658         av_free_packet(&pkt);
2659
2660         /* dump report by using the output first video and audio streams */
2661         print_report(output_files, ost_table, nb_ostreams, 0);
2662     }
2663
2664     /* at the end of stream, we must flush the decoder buffers */
2665     for (i = 0; i < nb_input_streams; i++) {
2666         ist = &input_streams[i];
2667         if (ist->decoding_needed) {
2668             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2669         }
2670     }
2671
2672     term_exit();
2673
2674     /* write the trailer if needed and close file */
2675     for(i=0;i<nb_output_files;i++) {
2676         os = output_files[i];
2677         av_write_trailer(os);
2678     }
2679
2680     /* dump report by using the first video and audio streams */
2681     print_report(output_files, ost_table, nb_ostreams, 1);
2682
2683     /* close each encoder */
2684     for(i=0;i<nb_ostreams;i++) {
2685         ost = ost_table[i];
2686         if (ost->encoding_needed) {
2687             av_freep(&ost->st->codec->stats_in);
2688             avcodec_close(ost->st->codec);
2689         }
2690 #if CONFIG_AVFILTER
2691         avfilter_graph_free(&ost->graph);
2692 #endif
2693     }
2694
2695     /* close each decoder */
2696     for (i = 0; i < nb_input_streams; i++) {
2697         ist = &input_streams[i];
2698         if (ist->decoding_needed) {
2699             avcodec_close(ist->st->codec);
2700         }
2701     }
2702
2703     /* finished ! */
2704     ret = 0;
2705
2706  fail:
2707     av_freep(&bit_buffer);
2708
2709     if (ost_table) {
2710         for(i=0;i<nb_ostreams;i++) {
2711             ost = ost_table[i];
2712             if (ost) {
2713                 if (ost->st->stream_copy)
2714                     av_freep(&ost->st->codec->extradata);
2715                 if (ost->logfile) {
2716                     fclose(ost->logfile);
2717                     ost->logfile = NULL;
2718                 }
2719                 av_fifo_free(ost->fifo); /* works even if fifo is not
2720                                              initialized but set to zero */
2721                 av_freep(&ost->st->codec->subtitle_header);
2722                 av_free(ost->pict_tmp.data[0]);
2723                 av_free(ost->forced_kf_pts);
2724                 if (ost->video_resample)
2725                     sws_freeContext(ost->img_resample_ctx);
2726                 if (ost->resample)
2727                     audio_resample_close(ost->resample);
2728                 if (ost->reformat_ctx)
2729                     av_audio_convert_free(ost->reformat_ctx);
2730                 av_dict_free(&ost->opts);
2731                 av_free(ost);
2732             }
2733         }
2734         av_free(ost_table);
2735     }
2736     return ret;
2737 }
2738
2739 static int opt_format(const char *opt, const char *arg)
2740 {
2741     last_asked_format = arg;
2742     return 0;
2743 }
2744
2745 static int opt_video_rc_override_string(const char *opt, const char *arg)
2746 {
2747     video_rc_override_string = arg;
2748     return 0;
2749 }
2750
2751 static int opt_me_threshold(const char *opt, const char *arg)
2752 {
2753     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2754     return 0;
2755 }
2756
2757 static int opt_verbose(const char *opt, const char *arg)
2758 {
2759     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2760     return 0;
2761 }
2762
2763 static int opt_frame_rate(const char *opt, const char *arg)
2764 {
2765     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2766         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2767         exit_program(1);
2768     }
2769     return 0;
2770 }
2771
2772 static int opt_frame_crop(const char *opt, const char *arg)
2773 {
2774     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2775     return AVERROR(EINVAL);
2776 }
2777
2778 static int opt_frame_size(const char *opt, const char *arg)
2779 {
2780     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2781         fprintf(stderr, "Incorrect frame size\n");
2782         return AVERROR(EINVAL);
2783     }
2784     return 0;
2785 }
2786
2787 static int opt_pad(const char *opt, const char *arg) {
2788     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2789     return -1;
2790 }
2791
2792 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2793 {
2794     if (strcmp(arg, "list")) {
2795         frame_pix_fmt = av_get_pix_fmt(arg);
2796         if (frame_pix_fmt == PIX_FMT_NONE) {
2797             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2798             return AVERROR(EINVAL);
2799         }
2800     } else {
2801         show_pix_fmts();
2802         exit_program(0);
2803     }
2804     return 0;
2805 }
2806
2807 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2808 {
2809     int x = 0, y = 0;
2810     double ar = 0;
2811     const char *p;
2812     char *end;
2813
2814     p = strchr(arg, ':');
2815     if (p) {
2816         x = strtol(arg, &end, 10);
2817         if (end == p)
2818             y = strtol(end+1, &end, 10);
2819         if (x > 0 && y > 0)
2820             ar = (double)x / (double)y;
2821     } else
2822         ar = strtod(arg, NULL);
2823
2824     if (!ar) {
2825         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2826         return AVERROR(EINVAL);
2827     }
2828     frame_aspect_ratio = ar;
2829     return 0;
2830 }
2831
2832 static int opt_metadata(const char *opt, const char *arg)
2833 {
2834     char *mid= strchr(arg, '=');
2835
2836     if(!mid){
2837         fprintf(stderr, "Missing =\n");
2838         exit_program(1);
2839     }
2840     *mid++= 0;
2841
2842     av_dict_set(&metadata, arg, mid, 0);
2843
2844     return 0;
2845 }
2846
2847 static int opt_qscale(const char *opt, const char *arg)
2848 {
2849     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2850     if (video_qscale == 0) {
2851         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2852         return AVERROR(EINVAL);
2853     }
2854     return 0;
2855 }
2856
2857 static int opt_top_field_first(const char *opt, const char *arg)
2858 {
2859     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2860     return 0;
2861 }
2862
2863 static int opt_thread_count(const char *opt, const char *arg)
2864 {
2865     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2866 #if !HAVE_THREADS
2867     if (verbose >= 0)
2868         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2869 #endif
2870     return 0;
2871 }
2872
2873 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2874 {
2875     if (strcmp(arg, "list")) {
2876         audio_sample_fmt = av_get_sample_fmt(arg);
2877         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2878             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2879             return AVERROR(EINVAL);
2880         }
2881     } else {
2882         int i;
2883         char fmt_str[128];
2884         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2885             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2886         exit_program(0);
2887     }
2888     return 0;
2889 }
2890
2891 static int opt_audio_rate(const char *opt, const char *arg)
2892 {
2893     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2894     return 0;
2895 }
2896
2897 static int opt_audio_channels(const char *opt, const char *arg)
2898 {
2899     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2900     return 0;
2901 }
2902
2903 static int opt_video_channel(const char *opt, const char *arg)
2904 {
2905     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2906     opt_default("channel", arg);
2907     return 0;
2908 }
2909
2910 static int opt_video_standard(const char *opt, const char *arg)
2911 {
2912     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2913     opt_default("standard", arg);
2914     return 0;
2915 }
2916
2917 static int opt_codec(int *pstream_copy, char **pcodec_name,
2918                       int codec_type, const char *arg)
2919 {
2920     av_freep(pcodec_name);
2921     if (!strcmp(arg, "copy")) {
2922         *pstream_copy = 1;
2923     } else {
2924         *pcodec_name = av_strdup(arg);
2925     }
2926     return 0;
2927 }
2928
2929 static int opt_audio_codec(const char *opt, const char *arg)
2930 {
2931     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2932 }
2933
2934 static int opt_video_codec(const char *opt, const char *arg)
2935 {
2936     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2937 }
2938
2939 static int opt_subtitle_codec(const char *opt, const char *arg)
2940 {
2941     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2942 }
2943
2944 static int opt_data_codec(const char *opt, const char *arg)
2945 {
2946     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2947 }
2948
2949 static int opt_codec_tag(const char *opt, const char *arg)
2950 {
2951     char *tail;
2952     uint32_t *codec_tag;
2953
2954     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2955                 !strcmp(opt, "vtag") ? &video_codec_tag :
2956                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2957     if (!codec_tag)
2958         return -1;
2959
2960     *codec_tag = strtol(arg, &tail, 0);
2961     if (!tail || *tail)
2962         *codec_tag = AV_RL32(arg);
2963
2964     return 0;
2965 }
2966
2967 static int opt_map(const char *opt, const char *arg)
2968 {
2969     StreamMap *m;
2970     char *p;
2971
2972     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2973     m = &stream_maps[nb_stream_maps-1];
2974
2975     m->file_index = strtol(arg, &p, 0);
2976     if (*p)
2977         p++;
2978
2979     m->stream_index = strtol(p, &p, 0);
2980     if (*p) {
2981         p++;
2982         m->sync_file_index = strtol(p, &p, 0);
2983         if (*p)
2984             p++;
2985         m->sync_stream_index = strtol(p, &p, 0);
2986     } else {
2987         m->sync_file_index = m->file_index;
2988         m->sync_stream_index = m->stream_index;
2989     }
2990     return 0;
2991 }
2992
2993 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2994 {
2995     *endptr = arg;
2996     if (*arg == ',') {
2997         *type = *(++arg);
2998         switch (*arg) {
2999         case 'g':
3000             break;
3001         case 's':
3002         case 'c':
3003         case 'p':
3004             *index = strtol(++arg, endptr, 0);
3005             break;
3006         default:
3007             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3008             exit_program(1);
3009         }
3010     } else
3011         *type = 'g';
3012 }
3013
3014 static int opt_map_metadata(const char *opt, const char *arg)
3015 {
3016     MetadataMap *m, *m1;
3017     char *p;
3018
3019     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3020                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3021
3022     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3023     m->file = strtol(arg, &p, 0);
3024     parse_meta_type(p, &m->type, &m->index, &p);
3025     if (*p)
3026         p++;
3027
3028     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3029     m1->file = strtol(p, &p, 0);
3030     parse_meta_type(p, &m1->type, &m1->index, &p);
3031
3032     if (m->type == 'g' || m1->type == 'g')
3033         metadata_global_autocopy = 0;
3034     if (m->type == 's' || m1->type == 's')
3035         metadata_streams_autocopy = 0;
3036     if (m->type == 'c' || m1->type == 'c')
3037         metadata_chapters_autocopy = 0;
3038
3039     return 0;
3040 }
3041
3042 static int opt_map_meta_data(const char *opt, const char *arg)
3043 {
3044     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3045                     "Use -map_metadata instead.\n");
3046     return opt_map_metadata(opt, arg);
3047 }
3048
3049 static int opt_map_chapters(const char *opt, const char *arg)
3050 {
3051     ChapterMap *c;
3052     char *p;
3053
3054     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3055                               nb_chapter_maps + 1);
3056     c = &chapter_maps[nb_chapter_maps - 1];
3057     c->out_file = strtol(arg, &p, 0);
3058     if (*p)
3059         p++;
3060
3061     c->in_file = strtol(p, &p, 0);
3062     return 0;
3063 }
3064
3065 static int opt_input_ts_scale(const char *opt, const char *arg)
3066 {
3067     unsigned int stream;
3068     double scale;
3069     char *p;
3070
3071     stream = strtol(arg, &p, 0);
3072     if (*p)
3073         p++;
3074     scale= strtod(p, &p);
3075
3076     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3077     ts_scale[stream] = scale;
3078     return 0;
3079 }
3080
3081 static int opt_recording_time(const char *opt, const char *arg)
3082 {
3083     recording_time = parse_time_or_die(opt, arg, 1);
3084     return 0;
3085 }
3086
3087 static int opt_start_time(const char *opt, const char *arg)
3088 {
3089     start_time = parse_time_or_die(opt, arg, 1);
3090     return 0;
3091 }
3092
3093 static int opt_recording_timestamp(const char *opt, const char *arg)
3094 {
3095     char buf[128];
3096     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3097     struct tm time = *gmtime((time_t*)&recording_timestamp);
3098     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3099     opt_metadata("metadata", buf);
3100
3101     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3102                                  "tag instead.\n", opt);
3103     return 0;
3104 }
3105
3106 static int opt_input_ts_offset(const char *opt, const char *arg)
3107 {
3108     input_ts_offset = parse_time_or_die(opt, arg, 1);
3109     return 0;
3110 }
3111
3112 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3113 {
3114     const char *codec_string = encoder ? "encoder" : "decoder";
3115     AVCodec *codec;
3116
3117     if(!name)
3118         return CODEC_ID_NONE;
3119     codec = encoder ?
3120         avcodec_find_encoder_by_name(name) :
3121         avcodec_find_decoder_by_name(name);
3122     if(!codec) {
3123         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3124         exit_program(1);
3125     }
3126     if(codec->type != type) {
3127         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3128         exit_program(1);
3129     }
3130     return codec->id;
3131 }
3132
3133 static int opt_input_file(const char *opt, const char *filename)
3134 {
3135     AVFormatContext *ic;
3136     AVInputFormat *file_iformat = NULL;
3137     int err, i, ret, rfps, rfps_base;
3138     int64_t timestamp;
3139     uint8_t buf[128];
3140     AVDictionary **opts;
3141     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
3142
3143     if (last_asked_format) {
3144         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3145             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3146             exit_program(1);
3147         }
3148         last_asked_format = NULL;
3149     }
3150
3151     if (!strcmp(filename, "-"))
3152         filename = "pipe:";
3153
3154     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3155                     !strcmp(filename, "/dev/stdin");
3156
3157     /* get default parameters from command line */
3158     ic = avformat_alloc_context();
3159     if (!ic) {
3160         print_error(filename, AVERROR(ENOMEM));
3161         exit_program(1);
3162     }
3163     if (audio_sample_rate) {
3164         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3165         av_dict_set(&format_opts, "sample_rate", buf, 0);
3166     }
3167     if (audio_channels) {
3168         snprintf(buf, sizeof(buf), "%d", audio_channels);
3169         av_dict_set(&format_opts, "channels", buf, 0);
3170     }
3171     if (frame_rate.num) {
3172         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3173         av_dict_set(&format_opts, "framerate", buf, 0);
3174     }
3175     if (frame_width && frame_height) {
3176         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3177         av_dict_set(&format_opts, "video_size", buf, 0);
3178     }
3179     if (frame_pix_fmt != PIX_FMT_NONE)
3180         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3181
3182     ic->video_codec_id   =
3183         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
3184     ic->audio_codec_id   =
3185         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
3186     ic->subtitle_codec_id=
3187         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3188     ic->flags |= AVFMT_FLAG_NONBLOCK;
3189
3190     /* open the input file with generic libav function */
3191     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3192     if (err < 0) {
3193         print_error(filename, err);
3194         exit_program(1);
3195     }
3196     assert_avoptions(format_opts);
3197
3198     if(opt_programid) {
3199         int i, j;
3200         int found=0;
3201         for(i=0; i<ic->nb_streams; i++){
3202             ic->streams[i]->discard= AVDISCARD_ALL;
3203         }
3204         for(i=0; i<ic->nb_programs; i++){
3205             AVProgram *p= ic->programs[i];
3206             if(p->id != opt_programid){
3207                 p->discard = AVDISCARD_ALL;
3208             }else{
3209                 found=1;
3210                 for(j=0; j<p->nb_stream_indexes; j++){
3211                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3212                 }
3213             }
3214         }
3215         if(!found){
3216             fprintf(stderr, "Specified program id not found\n");
3217             exit_program(1);
3218         }
3219         opt_programid=0;
3220     }
3221
3222     if (loop_input) {
3223         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3224         ic->loop_input = loop_input;
3225     }
3226
3227     /* Set AVCodecContext options for avformat_find_stream_info */
3228     opts = setup_find_stream_info_opts(ic, codec_opts);
3229     orig_nb_streams = ic->nb_streams;
3230
3231     /* If not enough info to get the stream parameters, we decode the
3232        first frames to get it. (used in mpeg case for example) */
3233     ret = avformat_find_stream_info(ic, opts);
3234     if (ret < 0 && verbose >= 0) {
3235         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3236         av_close_input_file(ic);
3237         exit_program(1);
3238     }
3239
3240     timestamp = start_time;
3241     /* add the stream start time */
3242     if (ic->start_time != AV_NOPTS_VALUE)
3243         timestamp += ic->start_time;
3244
3245     /* if seeking requested, we execute it */
3246     if (start_time != 0) {
3247         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3248         if (ret < 0) {
3249             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3250                     filename, (double)timestamp / AV_TIME_BASE);
3251         }
3252         /* reset seek info */
3253         start_time = 0;
3254     }
3255
3256     /* update the current parameters so that they match the one of the input stream */
3257     for(i=0;i<ic->nb_streams;i++) {
3258         AVStream *st = ic->streams[i];
3259         AVCodecContext *dec = st->codec;
3260         InputStream *ist;
3261
3262         dec->thread_count = thread_count;
3263
3264         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3265         ist = &input_streams[nb_input_streams - 1];
3266         ist->st = st;
3267         ist->file_index = nb_input_files;
3268         ist->discard = 1;
3269         ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
3270
3271         if (i < nb_ts_scale)
3272             ist->ts_scale = ts_scale[i];
3273
3274         switch (dec->codec_type) {
3275         case AVMEDIA_TYPE_AUDIO:
3276             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3277             if(audio_disable)
3278                 st->discard= AVDISCARD_ALL;
3279             break;
3280         case AVMEDIA_TYPE_VIDEO:
3281             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3282             rfps      = ic->streams[i]->r_frame_rate.num;
3283             rfps_base = ic->streams[i]->r_frame_rate.den;
3284             if (dec->lowres) {
3285                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3286                 dec->height >>= dec->lowres;
3287                 dec->width  >>= dec->lowres;
3288             }
3289             if(me_threshold)
3290                 dec->debug |= FF_DEBUG_MV;
3291
3292             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3293
3294                 if (verbose >= 0)
3295                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3296                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3297
3298                     (float)rfps / rfps_base, rfps, rfps_base);
3299             }
3300
3301             if(video_disable)
3302                 st->discard= AVDISCARD_ALL;
3303             else if(video_discard)
3304                 st->discard= video_discard;
3305             break;
3306         case AVMEDIA_TYPE_DATA:
3307             break;
3308         case AVMEDIA_TYPE_SUBTITLE:
3309             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3310             if(subtitle_disable)
3311                 st->discard = AVDISCARD_ALL;
3312             break;
3313         case AVMEDIA_TYPE_ATTACHMENT:
3314         case AVMEDIA_TYPE_UNKNOWN:
3315             break;
3316         default:
3317             abort();
3318         }
3319     }
3320
3321     /* dump the file content */
3322     if (verbose >= 0)
3323         av_dump_format(ic, nb_input_files, filename, 0);
3324
3325     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3326     input_files[nb_input_files - 1].ctx        = ic;
3327     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3328     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3329
3330     frame_rate    = (AVRational){0, 0};
3331     frame_pix_fmt = PIX_FMT_NONE;
3332     frame_height = 0;
3333     frame_width  = 0;
3334     audio_sample_rate = 0;
3335     audio_channels    = 0;
3336     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3337     av_freep(&ts_scale);
3338     nb_ts_scale = 0;
3339
3340     for (i = 0; i < orig_nb_streams; i++)
3341         av_dict_free(&opts[i]);
3342     av_freep(&opts);
3343     av_freep(&video_codec_name);
3344     av_freep(&audio_codec_name);
3345     av_freep(&subtitle_codec_name);
3346     uninit_opts();
3347     init_opts();
3348     return 0;
3349 }
3350
3351 static void check_inputs(int *has_video_ptr,
3352                          int *has_audio_ptr,
3353                          int *has_subtitle_ptr,
3354                          int *has_data_ptr)
3355 {
3356     int has_video, has_audio, has_subtitle, has_data, i, j;
3357     AVFormatContext *ic;
3358
3359     has_video = 0;
3360     has_audio = 0;
3361     has_subtitle = 0;
3362     has_data = 0;
3363
3364     for(j=0;j<nb_input_files;j++) {
3365         ic = input_files[j].ctx;
3366         for(i=0;i<ic->nb_streams;i++) {
3367             AVCodecContext *enc = ic->streams[i]->codec;
3368             switch(enc->codec_type) {
3369             case AVMEDIA_TYPE_AUDIO:
3370                 has_audio = 1;
3371                 break;
3372             case AVMEDIA_TYPE_VIDEO:
3373                 has_video = 1;
3374                 break;
3375             case AVMEDIA_TYPE_SUBTITLE:
3376                 has_subtitle = 1;
3377                 break;
3378             case AVMEDIA_TYPE_DATA:
3379             case AVMEDIA_TYPE_ATTACHMENT:
3380             case AVMEDIA_TYPE_UNKNOWN:
3381                 has_data = 1;
3382                 break;
3383             default:
3384                 abort();
3385             }
3386         }
3387     }
3388     *has_video_ptr = has_video;
3389     *has_audio_ptr = has_audio;
3390     *has_subtitle_ptr = has_subtitle;
3391     *has_data_ptr = has_data;
3392 }
3393
3394 static void new_video_stream(AVFormatContext *oc, int file_idx)
3395 {
3396     AVStream *st;
3397     OutputStream *ost;
3398     AVCodecContext *video_enc;
3399     enum CodecID codec_id = CODEC_ID_NONE;
3400     AVCodec *codec= NULL;
3401
3402     if(!video_stream_copy){
3403         if (video_codec_name) {
3404             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3405             codec = avcodec_find_encoder_by_name(video_codec_name);
3406         } else {
3407             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3408             codec = avcodec_find_encoder(codec_id);
3409         }
3410     }
3411
3412     ost = new_output_stream(oc, file_idx, codec);
3413     st  = ost->st;
3414     if (!video_stream_copy) {
3415         ost->frame_aspect_ratio = frame_aspect_ratio;
3416         frame_aspect_ratio = 0;
3417 #if CONFIG_AVFILTER
3418         ost->avfilter= vfilters;
3419         vfilters = NULL;
3420 #endif
3421     }
3422
3423     ost->bitstream_filters = video_bitstream_filters;
3424     video_bitstream_filters= NULL;
3425
3426     st->codec->thread_count= thread_count;
3427
3428     video_enc = st->codec;
3429
3430     if(video_codec_tag)
3431         video_enc->codec_tag= video_codec_tag;
3432
3433     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3434         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3435     }
3436
3437     video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3438     if (video_stream_copy) {
3439         st->stream_copy = 1;
3440         video_enc->sample_aspect_ratio =
3441         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3442     } else {
3443         const char *p;
3444         int i;
3445
3446         if (frame_rate.num)
3447             ost->frame_rate = frame_rate;
3448         video_enc->codec_id = codec_id;
3449
3450         video_enc->width = frame_width;
3451         video_enc->height = frame_height;
3452         video_enc->pix_fmt = frame_pix_fmt;
3453         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3454
3455         if (intra_only)
3456             video_enc->gop_size = 0;
3457         if (video_qscale || same_quality) {
3458             video_enc->flags |= CODEC_FLAG_QSCALE;
3459             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3460         }
3461
3462         if(intra_matrix)
3463             video_enc->intra_matrix = intra_matrix;
3464         if(inter_matrix)
3465             video_enc->inter_matrix = inter_matrix;
3466
3467         p= video_rc_override_string;
3468         for(i=0; p; i++){
3469             int start, end, q;
3470             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3471             if(e!=3){
3472                 fprintf(stderr, "error parsing rc_override\n");
3473                 exit_program(1);
3474             }
3475             video_enc->rc_override=
3476                 av_realloc(video_enc->rc_override,
3477                            sizeof(RcOverride)*(i+1));
3478             video_enc->rc_override[i].start_frame= start;
3479             video_enc->rc_override[i].end_frame  = end;
3480             if(q>0){
3481                 video_enc->rc_override[i].qscale= q;
3482                 video_enc->rc_override[i].quality_factor= 1.0;
3483             }
3484             else{
3485                 video_enc->rc_override[i].qscale= 0;
3486                 video_enc->rc_override[i].quality_factor= -q/100.0;
3487             }
3488             p= strchr(p, '/');
3489             if(p) p++;
3490         }
3491         video_enc->rc_override_count=i;
3492         if (!video_enc->rc_initial_buffer_occupancy)
3493             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3494         video_enc->me_threshold= me_threshold;
3495         video_enc->intra_dc_precision= intra_dc_precision - 8;
3496
3497         if (do_psnr)
3498             video_enc->flags|= CODEC_FLAG_PSNR;
3499
3500         /* two pass mode */
3501         if (do_pass) {
3502             if (do_pass == 1) {
3503                 video_enc->flags |= CODEC_FLAG_PASS1;
3504             } else {
3505                 video_enc->flags |= CODEC_FLAG_PASS2;
3506             }
3507         }
3508
3509         if (forced_key_frames)
3510             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3511     }
3512     if (video_language) {
3513         av_dict_set(&st->metadata, "language", video_language, 0);
3514         av_freep(&video_language);
3515     }
3516
3517     /* reset some key parameters */
3518     video_disable = 0;
3519     av_freep(&video_codec_name);
3520     av_freep(&forced_key_frames);
3521     video_stream_copy = 0;
3522     frame_pix_fmt = PIX_FMT_NONE;
3523 }
3524
3525 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3526 {
3527     AVStream *st;
3528     OutputStream *ost;
3529     AVCodec *codec= NULL;
3530     AVCodecContext *audio_enc;
3531     enum CodecID codec_id = CODEC_ID_NONE;
3532
3533     if(!audio_stream_copy){
3534         if (audio_codec_name) {
3535             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3536             codec = avcodec_find_encoder_by_name(audio_codec_name);
3537         } else {
3538             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3539             codec = avcodec_find_encoder(codec_id);
3540         }
3541     }
3542     ost = new_output_stream(oc, file_idx, codec);
3543     st  = ost->st;
3544
3545     ost->bitstream_filters = audio_bitstream_filters;
3546     audio_bitstream_filters= NULL;
3547
3548     st->codec->thread_count= thread_count;
3549
3550     audio_enc = st->codec;
3551     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3552
3553     if(audio_codec_tag)
3554         audio_enc->codec_tag= audio_codec_tag;
3555
3556     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3557         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3558     }
3559     if (audio_stream_copy) {
3560         st->stream_copy = 1;
3561     } else {
3562         audio_enc->codec_id = codec_id;
3563
3564         if (audio_qscale > QSCALE_NONE) {
3565             audio_enc->flags |= CODEC_FLAG_QSCALE;
3566             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3567         }
3568         if (audio_channels)
3569             audio_enc->channels = audio_channels;
3570         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3571             audio_enc->sample_fmt = audio_sample_fmt;
3572         if (audio_sample_rate)
3573             audio_enc->sample_rate = audio_sample_rate;
3574     }
3575     if (audio_language) {
3576         av_dict_set(&st->metadata, "language", audio_language, 0);
3577         av_freep(&audio_language);
3578     }
3579
3580     /* reset some key parameters */
3581     audio_disable = 0;
3582     av_freep(&audio_codec_name);
3583     audio_stream_copy = 0;
3584 }
3585
3586 static void new_data_stream(AVFormatContext *oc, int file_idx)
3587 {
3588     AVStream *st;
3589     OutputStream *ost;
3590     AVCodecContext *data_enc;
3591
3592     ost = new_output_stream(oc, file_idx, NULL);
3593     st  = ost->st;
3594     data_enc = st->codec;
3595     if (!data_stream_copy) {
3596         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3597         exit_program(1);
3598     }
3599
3600     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3601
3602     if (data_codec_tag)
3603         data_enc->codec_tag= data_codec_tag;
3604
3605     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3606         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3607     }
3608     if (data_stream_copy) {
3609         st->stream_copy = 1;
3610     }
3611
3612     data_disable = 0;
3613     av_freep(&data_codec_name);
3614     data_stream_copy = 0;
3615 }
3616
3617 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3618 {
3619     AVStream *st;
3620     OutputStream *ost;
3621     AVCodec *codec=NULL;
3622     AVCodecContext *subtitle_enc;
3623     enum CodecID codec_id = CODEC_ID_NONE;
3624
3625     if(!subtitle_stream_copy){
3626         if (subtitle_codec_name) {
3627             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1);
3628             codec = avcodec_find_encoder_by_name(subtitle_codec_name);
3629         } else {
3630             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3631             codec = avcodec_find_encoder(codec_id);
3632         }
3633     }
3634     ost = new_output_stream(oc, file_idx, codec);
3635     st  = ost->st;
3636     subtitle_enc = st->codec;
3637
3638     ost->bitstream_filters = subtitle_bitstream_filters;
3639     subtitle_bitstream_filters= NULL;
3640
3641     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3642
3643     if(subtitle_codec_tag)
3644         subtitle_enc->codec_tag= subtitle_codec_tag;
3645
3646     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3647         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3648     }
3649     if (subtitle_stream_copy) {
3650         st->stream_copy = 1;