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