ffmpeg: remove an unused define.
[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 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
106
107 static const char *last_asked_format = NULL;
108 static double *ts_scale;
109 static int  nb_ts_scale;
110
111 static AVFormatContext *output_files[MAX_FILES];
112 static AVDictionary *output_opts[MAX_FILES];
113 static int nb_output_files = 0;
114
115 static StreamMap *stream_maps = NULL;
116 static int nb_stream_maps;
117
118 /* first item specifies output metadata, second is input */
119 static MetadataMap (*meta_data_maps)[2] = NULL;
120 static int nb_meta_data_maps;
121 static int metadata_global_autocopy   = 1;
122 static int metadata_streams_autocopy  = 1;
123 static int metadata_chapters_autocopy = 1;
124
125 static ChapterMap *chapter_maps = NULL;
126 static int nb_chapter_maps;
127
128 /* indexed by output file stream index */
129 static int *streamid_map = NULL;
130 static int nb_streamid_map = 0;
131
132 static int frame_width  = 0;
133 static int frame_height = 0;
134 static float frame_aspect_ratio = 0;
135 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
136 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
137 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
138 static AVRational frame_rate;
139 static float video_qscale = 0;
140 static uint16_t *intra_matrix = NULL;
141 static uint16_t *inter_matrix = NULL;
142 static const char *video_rc_override_string=NULL;
143 static int video_disable = 0;
144 static int video_discard = 0;
145 static char *video_codec_name = NULL;
146 static unsigned int video_codec_tag = 0;
147 static char *video_language = NULL;
148 static int same_quality = 0;
149 static int do_deinterlace = 0;
150 static int top_field_first = -1;
151 static int me_threshold = 0;
152 static int intra_dc_precision = 8;
153 static int loop_input = 0;
154 static int loop_output = AVFMT_NOOUTPUTLOOP;
155 static int qp_hist = 0;
156 #if CONFIG_AVFILTER
157 static char *vfilters = NULL;
158 #endif
159
160 static int intra_only = 0;
161 static int audio_sample_rate = 0;
162 #define QSCALE_NONE -99999
163 static float audio_qscale = QSCALE_NONE;
164 static int audio_disable = 0;
165 static int audio_channels = 0;
166 static char  *audio_codec_name = NULL;
167 static unsigned int audio_codec_tag = 0;
168 static char *audio_language = NULL;
169
170 static int subtitle_disable = 0;
171 static char *subtitle_codec_name = NULL;
172 static char *subtitle_language = NULL;
173 static unsigned int subtitle_codec_tag = 0;
174
175 static int data_disable = 0;
176 static char *data_codec_name = NULL;
177 static unsigned int data_codec_tag = 0;
178
179 static float mux_preload= 0.5;
180 static float mux_max_delay= 0.7;
181
182 static int64_t recording_time = INT64_MAX;
183 static int64_t start_time = 0;
184 static int64_t input_ts_offset = 0;
185 static int file_overwrite = 0;
186 static AVDictionary *metadata;
187 static int do_benchmark = 0;
188 static int do_hex_dump = 0;
189 static int do_pkt_dump = 0;
190 static int do_psnr = 0;
191 static int do_pass = 0;
192 static char *pass_logfilename_prefix = NULL;
193 static int audio_stream_copy = 0;
194 static int video_stream_copy = 0;
195 static int subtitle_stream_copy = 0;
196 static int data_stream_copy = 0;
197 static int video_sync_method= -1;
198 static int audio_sync_method= 0;
199 static float audio_drift_threshold= 0.1;
200 static int copy_ts= 0;
201 static int copy_tb;
202 static int opt_shortest = 0;
203 static char *vstats_filename;
204 static FILE *vstats_file;
205 static int opt_programid = 0;
206 static int copy_initial_nonkeyframes = 0;
207
208 static int rate_emu = 0;
209
210 static int audio_volume = 256;
211
212 static int exit_on_error = 0;
213 static int using_stdin = 0;
214 static int verbose = 1;
215 static int thread_count= 1;
216 static int64_t video_size = 0;
217 static int64_t audio_size = 0;
218 static int64_t extra_size = 0;
219 static int nb_frames_dup = 0;
220 static int nb_frames_drop = 0;
221 static int input_sync;
222 static uint64_t limit_filesize = 0;
223 static int force_fps = 0;
224 static char *forced_key_frames = NULL;
225
226 static float dts_delta_threshold = 10;
227
228 static int64_t timer_start;
229
230 static uint8_t *audio_buf;
231 static uint8_t *audio_out;
232 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
233
234 static short *samples;
235
236 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
237 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
239
240 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
241
242 struct InputStream;
243
244 typedef struct OutputStream {
245     int file_index;          /* file index */
246     int index;               /* stream index in the output file */
247     int source_index;        /* InputStream index */
248     AVStream *st;            /* stream in the output file */
249     int encoding_needed;     /* true if encoding needed for this stream */
250     int frame_number;
251     /* input pts and corresponding output pts
252        for A/V sync */
253     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
254     struct InputStream *sync_ist; /* input stream to sync against */
255     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
256     AVBitStreamFilterContext *bitstream_filters;
257     AVCodec *enc;
258
259     /* video only */
260     int video_resample;
261     AVFrame pict_tmp;      /* temporary image for resampling */
262     struct SwsContext *img_resample_ctx; /* for image resampling */
263     int resample_height;
264     int resample_width;
265     int resample_pix_fmt;
266     AVRational frame_rate;
267
268     float frame_aspect_ratio;
269
270     /* forced key frames */
271     int64_t *forced_kf_pts;
272     int forced_kf_count;
273     int forced_kf_index;
274
275     /* audio only */
276     int audio_resample;
277     ReSampleContext *resample; /* for audio resampling */
278     int resample_sample_fmt;
279     int resample_channels;
280     int resample_sample_rate;
281     int reformat_pair;
282     AVAudioConvert *reformat_ctx;
283     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
284     FILE *logfile;
285
286 #if CONFIG_AVFILTER
287     AVFilterContext *output_video_filter;
288     AVFilterContext *input_video_filter;
289     AVFilterBufferRef *picref;
290     char *avfilter;
291     AVFilterGraph *graph;
292 #endif
293
294    int sws_flags;
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 } InputStream;
317
318 typedef struct InputFile {
319     AVFormatContext *ctx;
320     int eof_reached;      /* true if eof reached */
321     int ist_index;        /* index of first stream in ist_table */
322     int buffer_size;      /* current total buffer size */
323     int64_t ts_offset;
324 } InputFile;
325
326 static InputStream *input_streams = NULL;
327 static int         nb_input_streams = 0;
328 static InputFile   *input_files   = NULL;
329 static int         nb_input_files   = 0;
330
331 #if CONFIG_AVFILTER
332
333 static int configure_video_filters(InputStream *ist, OutputStream *ost)
334 {
335     AVFilterContext *last_filter, *filter;
336     /** filter graph containing all filters including input & output */
337     AVCodecContext *codec = ost->st->codec;
338     AVCodecContext *icodec = ist->st->codec;
339     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
340     AVRational sample_aspect_ratio;
341     char args[255];
342     int ret;
343
344     ost->graph = avfilter_graph_alloc();
345
346     if (ist->st->sample_aspect_ratio.num){
347         sample_aspect_ratio = ist->st->sample_aspect_ratio;
348     }else
349         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
350
351     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
352              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
353              sample_aspect_ratio.num, sample_aspect_ratio.den);
354
355     ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
356                                        "src", args, NULL, ost->graph);
357     if (ret < 0)
358         return ret;
359     ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
360                                        "out", NULL, &ffsink_ctx, ost->graph);
361     if (ret < 0)
362         return ret;
363     last_filter = ost->input_video_filter;
364
365     if (codec->width  != icodec->width || codec->height != icodec->height) {
366         snprintf(args, 255, "%d:%d:flags=0x%X",
367                  codec->width,
368                  codec->height,
369                  ost->sws_flags);
370         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
371                                                 NULL, args, NULL, ost->graph)) < 0)
372             return ret;
373         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
374             return ret;
375         last_filter = filter;
376     }
377
378     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
379     ost->graph->scale_sws_opts = av_strdup(args);
380
381     if (ost->avfilter) {
382         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
383         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
384
385         outputs->name    = av_strdup("in");
386         outputs->filter_ctx = last_filter;
387         outputs->pad_idx = 0;
388         outputs->next    = NULL;
389
390         inputs->name    = av_strdup("out");
391         inputs->filter_ctx = ost->output_video_filter;
392         inputs->pad_idx = 0;
393         inputs->next    = NULL;
394
395         if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
396             return ret;
397         av_freep(&ost->avfilter);
398     } else {
399         if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
400             return ret;
401     }
402
403     if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
404         return ret;
405
406     codec->width  = ost->output_video_filter->inputs[0]->w;
407     codec->height = ost->output_video_filter->inputs[0]->h;
408     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
409         ost->frame_aspect_ratio ? // overriden by the -aspect cli option
410         av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
411         ost->output_video_filter->inputs[0]->sample_aspect_ratio;
412
413     return 0;
414 }
415 #endif /* CONFIG_AVFILTER */
416
417 static void term_exit(void)
418 {
419     av_log(NULL, AV_LOG_QUIET, "");
420 }
421
422 static volatile int received_sigterm = 0;
423 static volatile int received_nb_signals = 0;
424
425 static void
426 sigterm_handler(int sig)
427 {
428     received_sigterm = sig;
429     received_nb_signals++;
430     term_exit();
431 }
432
433 static void term_init(void)
434 {
435     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
436     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
437 #ifdef SIGXCPU
438     signal(SIGXCPU, sigterm_handler);
439 #endif
440 }
441
442 static int decode_interrupt_cb(void)
443 {
444     return received_nb_signals > 1;
445 }
446
447 static int ffmpeg_exit(int ret)
448 {
449     int i;
450
451     /* close files */
452     for(i=0;i<nb_output_files;i++) {
453         AVFormatContext *s = output_files[i];
454         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
455             avio_close(s->pb);
456         avformat_free_context(s);
457         av_free(output_streams_for_file[i]);
458         av_dict_free(&output_opts[i]);
459     }
460     for(i=0;i<nb_input_files;i++) {
461         av_close_input_file(input_files[i].ctx);
462     }
463
464     av_free(intra_matrix);
465     av_free(inter_matrix);
466
467     if (vstats_file)
468         fclose(vstats_file);
469     av_free(vstats_filename);
470
471     av_free(streamid_map);
472     av_free(stream_maps);
473     av_free(meta_data_maps);
474
475     av_freep(&input_streams);
476     av_freep(&input_files);
477
478     av_free(video_codec_name);
479     av_free(audio_codec_name);
480     av_free(subtitle_codec_name);
481     av_free(data_codec_name);
482
483     uninit_opts();
484     av_free(audio_buf);
485     av_free(audio_out);
486     allocated_audio_buf_size= allocated_audio_out_size= 0;
487     av_free(samples);
488
489 #if CONFIG_AVFILTER
490     avfilter_uninit();
491 #endif
492
493     if (received_sigterm) {
494         fprintf(stderr,
495             "Received signal %d: terminating.\n",
496             (int) received_sigterm);
497         exit (255);
498     }
499
500     exit(ret); /* not all OS-es handle main() return value */
501     return ret;
502 }
503
504 static void assert_avoptions(AVDictionary *m)
505 {
506     AVDictionaryEntry *t;
507     if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
508         av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
509         ffmpeg_exit(1);
510     }
511 }
512
513 /* similar to ff_dynarray_add() and av_fast_realloc() */
514 static void *grow_array(void *array, int elem_size, int *size, int new_size)
515 {
516     if (new_size >= INT_MAX / elem_size) {
517         fprintf(stderr, "Array too big.\n");
518         ffmpeg_exit(1);
519     }
520     if (*size < new_size) {
521         uint8_t *tmp = av_realloc(array, new_size*elem_size);
522         if (!tmp) {
523             fprintf(stderr, "Could not alloc buffer.\n");
524             ffmpeg_exit(1);
525         }
526         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
527         *size = new_size;
528         return tmp;
529     }
530     return array;
531 }
532
533 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
534 {
535     if(codec && codec->sample_fmts){
536         const enum AVSampleFormat *p= codec->sample_fmts;
537         for(; *p!=-1; p++){
538             if(*p == st->codec->sample_fmt)
539                 break;
540         }
541         if (*p == -1) {
542             av_log(NULL, AV_LOG_WARNING,
543                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
544                    av_get_sample_fmt_name(st->codec->sample_fmt),
545                    codec->name,
546                    av_get_sample_fmt_name(codec->sample_fmts[0]));
547             st->codec->sample_fmt = codec->sample_fmts[0];
548         }
549     }
550 }
551
552 /**
553  * Update the requested input sample format based on the output sample format.
554  * This is currently only used to request float output from decoders which
555  * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
556  * Ideally this will be removed in the future when decoders do not do format
557  * conversion and only output in their native format.
558  */
559 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
560                               AVCodecContext *enc)
561 {
562     /* if sample formats match or a decoder sample format has already been
563        requested, just return */
564     if (enc->sample_fmt == dec->sample_fmt ||
565         dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
566         return;
567
568     /* if decoder supports more than one output format */
569     if (dec_codec && dec_codec->sample_fmts &&
570         dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
571         dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
572         const enum AVSampleFormat *p;
573         int min_dec = -1, min_inc = -1;
574
575         /* find a matching sample format in the encoder */
576         for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
577             if (*p == enc->sample_fmt) {
578                 dec->request_sample_fmt = *p;
579                 return;
580             } else if (*p > enc->sample_fmt) {
581                 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
582             } else
583                 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
584         }
585
586         /* if none match, provide the one that matches quality closest */
587         dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
588                                   enc->sample_fmt - min_dec;
589     }
590 }
591
592 static void choose_sample_rate(AVStream *st, AVCodec *codec)
593 {
594     if(codec && codec->supported_samplerates){
595         const int *p= codec->supported_samplerates;
596         int best=0;
597         int best_dist=INT_MAX;
598         for(; *p; p++){
599             int dist= abs(st->codec->sample_rate - *p);
600             if(dist < best_dist){
601                 best_dist= dist;
602                 best= *p;
603             }
604         }
605         if(best_dist){
606             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
607         }
608         st->codec->sample_rate= best;
609     }
610 }
611
612 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
613 {
614     if(codec && codec->pix_fmts){
615         const enum PixelFormat *p= codec->pix_fmts;
616         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
617             if(st->codec->codec_id==CODEC_ID_MJPEG){
618                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
619             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
620                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
621             }
622         }
623         for(; *p!=-1; p++){
624             if(*p == st->codec->pix_fmt)
625                 break;
626         }
627         if (*p == -1) {
628             if(st->codec->pix_fmt != PIX_FMT_NONE)
629                 av_log(NULL, AV_LOG_WARNING,
630                         "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
631                         av_pix_fmt_descriptors[st->codec->pix_fmt].name,
632                         codec->name,
633                         av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
634             st->codec->pix_fmt = codec->pix_fmts[0];
635         }
636     }
637 }
638
639 static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, AVCodec *codec)
640 {
641     OutputStream *ost;
642     AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
643     int idx      = oc->nb_streams - 1;
644
645     if (!st) {
646         av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
647         ffmpeg_exit(1);
648     }
649
650     output_streams_for_file[file_idx] =
651         grow_array(output_streams_for_file[file_idx],
652                    sizeof(*output_streams_for_file[file_idx]),
653                    &nb_output_streams_for_file[file_idx],
654                    oc->nb_streams);
655     ost = output_streams_for_file[file_idx][idx] =
656         av_mallocz(sizeof(OutputStream));
657     if (!ost) {
658         fprintf(stderr, "Could not alloc output stream\n");
659         ffmpeg_exit(1);
660     }
661     ost->file_index = file_idx;
662     ost->index = idx;
663     ost->st    = st;
664     ost->enc   = codec;
665
666     avcodec_get_context_defaults3(st->codec, codec);
667
668     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
669     return ost;
670 }
671
672 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
673 {
674     int i, err;
675     AVFormatContext *ic = NULL;
676     int nopts = 0;
677
678     err = avformat_open_input(&ic, filename, NULL, NULL);
679     if (err < 0)
680         return err;
681     /* copy stream format */
682     for(i=0;i<ic->nb_streams;i++) {
683         AVStream *st;
684         OutputStream *ost;
685         AVCodec *codec;
686
687         codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
688         ost   = new_output_stream(s, nb_output_files, codec);
689         st    = ost->st;
690
691         // FIXME: a more elegant solution is needed
692         memcpy(st, ic->streams[i], sizeof(AVStream));
693         st->info = NULL;
694         avcodec_copy_context(st->codec, ic->streams[i]->codec);
695
696         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
697             if (audio_stream_copy) {
698                 st->stream_copy = 1;
699             } else
700                 choose_sample_fmt(st, codec);
701         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
702             if (video_stream_copy) {
703                 st->stream_copy = 1;
704             } else
705                 choose_pixel_fmt(st, codec);
706         }
707
708         if(st->codec->flags & CODEC_FLAG_BITEXACT)
709             nopts = 1;
710     }
711
712     av_close_input_file(ic);
713     return 0;
714 }
715
716 static double
717 get_sync_ipts(const OutputStream *ost)
718 {
719     const InputStream *ist = ost->sync_ist;
720     return (double)(ist->pts - start_time)/AV_TIME_BASE;
721 }
722
723 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
724     int ret;
725
726     while(bsfc){
727         AVPacket new_pkt= *pkt;
728         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
729                                           &new_pkt.data, &new_pkt.size,
730                                           pkt->data, pkt->size,
731                                           pkt->flags & AV_PKT_FLAG_KEY);
732         if(a>0){
733             av_free_packet(pkt);
734             new_pkt.destruct= av_destruct_packet;
735         } else if(a<0){
736             fprintf(stderr, "%s failed for stream %d, codec %s",
737                     bsfc->filter->name, pkt->stream_index,
738                     avctx->codec ? avctx->codec->name : "copy");
739             print_error("", a);
740             if (exit_on_error)
741                 ffmpeg_exit(1);
742         }
743         *pkt= new_pkt;
744
745         bsfc= bsfc->next;
746     }
747
748     ret= av_interleaved_write_frame(s, pkt);
749     if(ret < 0){
750         print_error("av_interleaved_write_frame()", ret);
751         ffmpeg_exit(1);
752     }
753 }
754
755 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
756
757 static void do_audio_out(AVFormatContext *s,
758                          OutputStream *ost,
759                          InputStream *ist,
760                          unsigned char *buf, int size)
761 {
762     uint8_t *buftmp;
763     int64_t audio_out_size, audio_buf_size;
764     int64_t allocated_for_size= size;
765
766     int size_out, frame_bytes, ret, resample_changed;
767     AVCodecContext *enc= ost->st->codec;
768     AVCodecContext *dec= ist->st->codec;
769     int osize = av_get_bytes_per_sample(enc->sample_fmt);
770     int isize = av_get_bytes_per_sample(dec->sample_fmt);
771     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
772
773 need_realloc:
774     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
775     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
776     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
777     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
778     audio_buf_size*= osize*enc->channels;
779
780     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
781     if(coded_bps > 8*osize)
782         audio_out_size= audio_out_size * coded_bps / (8*osize);
783     audio_out_size += FF_MIN_BUFFER_SIZE;
784
785     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
786         fprintf(stderr, "Buffer sizes too large\n");
787         ffmpeg_exit(1);
788     }
789
790     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
791     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
792     if (!audio_buf || !audio_out){
793         fprintf(stderr, "Out of memory in do_audio_out\n");
794         ffmpeg_exit(1);
795     }
796
797     if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
798         ost->audio_resample = 1;
799
800     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
801                        ost->resample_channels    != dec->channels   ||
802                        ost->resample_sample_rate != dec->sample_rate;
803
804     if ((ost->audio_resample && !ost->resample) || resample_changed) {
805         if (resample_changed) {
806             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",
807                    ist->file_index, ist->st->index,
808                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
809                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
810             ost->resample_sample_fmt  = dec->sample_fmt;
811             ost->resample_channels    = dec->channels;
812             ost->resample_sample_rate = dec->sample_rate;
813             if (ost->resample)
814                 audio_resample_close(ost->resample);
815         }
816         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
817         if (audio_sync_method <= 1 &&
818             ost->resample_sample_fmt  == enc->sample_fmt &&
819             ost->resample_channels    == enc->channels   &&
820             ost->resample_sample_rate == enc->sample_rate) {
821             ost->resample = NULL;
822             ost->audio_resample = 0;
823         } else if (ost->audio_resample) {
824             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
825                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
826             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
827                                                    enc->sample_rate, dec->sample_rate,
828                                                    enc->sample_fmt,  dec->sample_fmt,
829                                                    16, 10, 0, 0.8);
830             if (!ost->resample) {
831                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
832                         dec->channels, dec->sample_rate,
833                         enc->channels, enc->sample_rate);
834                 ffmpeg_exit(1);
835             }
836         }
837     }
838
839 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
840     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
841         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
842         if (ost->reformat_ctx)
843             av_audio_convert_free(ost->reformat_ctx);
844         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
845                                                    dec->sample_fmt, 1, NULL, 0);
846         if (!ost->reformat_ctx) {
847             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
848                 av_get_sample_fmt_name(dec->sample_fmt),
849                 av_get_sample_fmt_name(enc->sample_fmt));
850             ffmpeg_exit(1);
851         }
852         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
853     }
854
855     if(audio_sync_method){
856         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
857                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
858         double idelta= delta*dec->sample_rate / enc->sample_rate;
859         int byte_delta= ((int)idelta)*2*dec->channels;
860
861         //FIXME resample delay
862         if(fabs(delta) > 50){
863             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
864                 if(byte_delta < 0){
865                     byte_delta= FFMAX(byte_delta, -size);
866                     size += byte_delta;
867                     buf  -= byte_delta;
868                     if(verbose > 2)
869                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
870                     if(!size)
871                         return;
872                     ist->is_start=0;
873                 }else{
874                     static uint8_t *input_tmp= NULL;
875                     input_tmp= av_realloc(input_tmp, byte_delta + size);
876
877                     if(byte_delta > allocated_for_size - size){
878                         allocated_for_size= byte_delta + (int64_t)size;
879                         goto need_realloc;
880                     }
881                     ist->is_start=0;
882
883                     memset(input_tmp, 0, byte_delta);
884                     memcpy(input_tmp + byte_delta, buf, size);
885                     buf= input_tmp;
886                     size += byte_delta;
887                     if(verbose > 2)
888                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
889                 }
890             }else if(audio_sync_method>1){
891                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
892                 av_assert0(ost->audio_resample);
893                 if(verbose > 2)
894                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
895 //                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));
896                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
897             }
898         }
899     }else
900         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
901                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
902
903     if (ost->audio_resample) {
904         buftmp = audio_buf;
905         size_out = audio_resample(ost->resample,
906                                   (short *)buftmp, (short *)buf,
907                                   size / (dec->channels * isize));
908         size_out = size_out * enc->channels * osize;
909     } else {
910         buftmp = buf;
911         size_out = size;
912     }
913
914     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
915         const void *ibuf[6]= {buftmp};
916         void *obuf[6]= {audio_buf};
917         int istride[6]= {isize};
918         int ostride[6]= {osize};
919         int len= size_out/istride[0];
920         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
921             printf("av_audio_convert() failed\n");
922             if (exit_on_error)
923                 ffmpeg_exit(1);
924             return;
925         }
926         buftmp = audio_buf;
927         size_out = len*osize;
928     }
929
930     /* now encode as many frames as possible */
931     if (enc->frame_size > 1) {
932         /* output resampled raw samples */
933         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
934             fprintf(stderr, "av_fifo_realloc2() failed\n");
935             ffmpeg_exit(1);
936         }
937         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
938
939         frame_bytes = enc->frame_size * osize * enc->channels;
940
941         while (av_fifo_size(ost->fifo) >= frame_bytes) {
942             AVPacket pkt;
943             av_init_packet(&pkt);
944
945             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
946
947             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
948
949             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
950                                        (short *)audio_buf);
951             if (ret < 0) {
952                 fprintf(stderr, "Audio encoding failed\n");
953                 ffmpeg_exit(1);
954             }
955             audio_size += ret;
956             pkt.stream_index= ost->index;
957             pkt.data= audio_out;
958             pkt.size= ret;
959             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
960                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
961             pkt.flags |= AV_PKT_FLAG_KEY;
962             write_frame(s, &pkt, enc, ost->bitstream_filters);
963
964             ost->sync_opts += enc->frame_size;
965         }
966     } else {
967         AVPacket pkt;
968         av_init_packet(&pkt);
969
970         ost->sync_opts += size_out / (osize * enc->channels);
971
972         /* output a pcm frame */
973         /* determine the size of the coded buffer */
974         size_out /= osize;
975         if (coded_bps)
976             size_out = size_out*coded_bps/8;
977
978         if(size_out > audio_out_size){
979             fprintf(stderr, "Internal error, buffer size too small\n");
980             ffmpeg_exit(1);
981         }
982
983         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
984         ret = avcodec_encode_audio(enc, audio_out, size_out,
985                                    (short *)buftmp);
986         if (ret < 0) {
987             fprintf(stderr, "Audio encoding failed\n");
988             ffmpeg_exit(1);
989         }
990         audio_size += ret;
991         pkt.stream_index= ost->index;
992         pkt.data= audio_out;
993         pkt.size= ret;
994         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
995             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
996         pkt.flags |= AV_PKT_FLAG_KEY;
997         write_frame(s, &pkt, enc, ost->bitstream_filters);
998     }
999 }
1000
1001 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
1002 {
1003     AVCodecContext *dec;
1004     AVPicture *picture2;
1005     AVPicture picture_tmp;
1006     uint8_t *buf = 0;
1007
1008     dec = ist->st->codec;
1009
1010     /* deinterlace : must be done before any resize */
1011     if (do_deinterlace) {
1012         int size;
1013
1014         /* create temporary picture */
1015         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1016         buf = av_malloc(size);
1017         if (!buf)
1018             return;
1019
1020         picture2 = &picture_tmp;
1021         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1022
1023         if(avpicture_deinterlace(picture2, picture,
1024                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1025             /* if error, do not deinterlace */
1026             fprintf(stderr, "Deinterlacing failed\n");
1027             av_free(buf);
1028             buf = NULL;
1029             picture2 = picture;
1030         }
1031     } else {
1032         picture2 = picture;
1033     }
1034
1035     if (picture != picture2)
1036         *picture = *picture2;
1037     *bufp = buf;
1038 }
1039
1040 /* we begin to correct av delay at this threshold */
1041 #define AV_DELAY_MAX 0.100
1042
1043 static void do_subtitle_out(AVFormatContext *s,
1044                             OutputStream *ost,
1045                             InputStream *ist,
1046                             AVSubtitle *sub,
1047                             int64_t pts)
1048 {
1049     static uint8_t *subtitle_out = NULL;
1050     int subtitle_out_max_size = 1024 * 1024;
1051     int subtitle_out_size, nb, i;
1052     AVCodecContext *enc;
1053     AVPacket pkt;
1054
1055     if (pts == AV_NOPTS_VALUE) {
1056         fprintf(stderr, "Subtitle packets must have a pts\n");
1057         if (exit_on_error)
1058             ffmpeg_exit(1);
1059         return;
1060     }
1061
1062     enc = ost->st->codec;
1063
1064     if (!subtitle_out) {
1065         subtitle_out = av_malloc(subtitle_out_max_size);
1066     }
1067
1068     /* Note: DVB subtitle need one packet to draw them and one other
1069        packet to clear them */
1070     /* XXX: signal it in the codec context ? */
1071     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1072         nb = 2;
1073     else
1074         nb = 1;
1075
1076     for(i = 0; i < nb; i++) {
1077         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1078         // start_display_time is required to be 0
1079         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1080         sub->end_display_time -= sub->start_display_time;
1081         sub->start_display_time = 0;
1082         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1083                                                     subtitle_out_max_size, sub);
1084         if (subtitle_out_size < 0) {
1085             fprintf(stderr, "Subtitle encoding failed\n");
1086             ffmpeg_exit(1);
1087         }
1088
1089         av_init_packet(&pkt);
1090         pkt.stream_index = ost->index;
1091         pkt.data = subtitle_out;
1092         pkt.size = subtitle_out_size;
1093         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1094         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1095             /* XXX: the pts correction is handled here. Maybe handling
1096                it in the codec would be better */
1097             if (i == 0)
1098                 pkt.pts += 90 * sub->start_display_time;
1099             else
1100                 pkt.pts += 90 * sub->end_display_time;
1101         }
1102         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1103     }
1104 }
1105
1106 static int bit_buffer_size= 1024*256;
1107 static uint8_t *bit_buffer= NULL;
1108
1109 static void do_video_out(AVFormatContext *s,
1110                          OutputStream *ost,
1111                          InputStream *ist,
1112                          AVFrame *in_picture,
1113                          int *frame_size, float quality)
1114 {
1115     int nb_frames, i, ret, resample_changed;
1116     AVFrame *final_picture, *formatted_picture;
1117     AVCodecContext *enc, *dec;
1118     double sync_ipts;
1119
1120     enc = ost->st->codec;
1121     dec = ist->st->codec;
1122
1123     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1124
1125     /* by default, we output a single frame */
1126     nb_frames = 1;
1127
1128     *frame_size = 0;
1129
1130     if(video_sync_method){
1131         double vdelta = sync_ipts - ost->sync_opts;
1132         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1133         if (vdelta < -1.1)
1134             nb_frames = 0;
1135         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1136             if(vdelta<=-0.6){
1137                 nb_frames=0;
1138             }else if(vdelta>0.6)
1139                 ost->sync_opts= lrintf(sync_ipts);
1140         }else if (vdelta > 1.1)
1141             nb_frames = lrintf(vdelta);
1142 //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);
1143         if (nb_frames == 0){
1144             ++nb_frames_drop;
1145             if (verbose>2)
1146                 fprintf(stderr, "*** drop!\n");
1147         }else if (nb_frames > 1) {
1148             nb_frames_dup += nb_frames - 1;
1149             if (verbose>2)
1150                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1151         }
1152     }else
1153         ost->sync_opts= lrintf(sync_ipts);
1154
1155     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1156     if (nb_frames <= 0)
1157         return;
1158
1159     formatted_picture = in_picture;
1160     final_picture = formatted_picture;
1161
1162     resample_changed = ost->resample_width   != dec->width  ||
1163                        ost->resample_height  != dec->height ||
1164                        ost->resample_pix_fmt != dec->pix_fmt;
1165
1166     if (resample_changed) {
1167         av_log(NULL, AV_LOG_INFO,
1168                "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1169                ist->file_index, ist->st->index,
1170                ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1171                dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt));
1172         if(!ost->video_resample)
1173             ffmpeg_exit(1);
1174     }
1175
1176 #if !CONFIG_AVFILTER
1177     if (ost->video_resample) {
1178         final_picture = &ost->pict_tmp;
1179         if (resample_changed) {
1180             /* initialize a new scaler context */
1181             sws_freeContext(ost->img_resample_ctx);
1182             ost->img_resample_ctx = sws_getContext(
1183                 ist->st->codec->width,
1184                 ist->st->codec->height,
1185                 ist->st->codec->pix_fmt,
1186                 ost->st->codec->width,
1187                 ost->st->codec->height,
1188                 ost->st->codec->pix_fmt,
1189                 ost->sws_flags, NULL, NULL, NULL);
1190             if (ost->img_resample_ctx == NULL) {
1191                 fprintf(stderr, "Cannot get resampling context\n");
1192                 ffmpeg_exit(1);
1193             }
1194         }
1195         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1196               0, ost->resample_height, final_picture->data, final_picture->linesize);
1197     }
1198 #endif
1199
1200     /* duplicates frame if needed */
1201     for(i=0;i<nb_frames;i++) {
1202         AVPacket pkt;
1203         av_init_packet(&pkt);
1204         pkt.stream_index= ost->index;
1205
1206         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1207             /* raw pictures are written as AVPicture structure to
1208                avoid any copies. We support temorarily the older
1209                method. */
1210             AVFrame* old_frame = enc->coded_frame;
1211             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1212             pkt.data= (uint8_t *)final_picture;
1213             pkt.size=  sizeof(AVPicture);
1214             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1215             pkt.flags |= AV_PKT_FLAG_KEY;
1216
1217             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1218             enc->coded_frame = old_frame;
1219         } else {
1220             AVFrame big_picture;
1221
1222             big_picture= *final_picture;
1223             /* better than nothing: use input picture interlaced
1224                settings */
1225             big_picture.interlaced_frame = in_picture->interlaced_frame;
1226             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1227                 if(top_field_first == -1)
1228                     big_picture.top_field_first = in_picture->top_field_first;
1229                 else
1230                     big_picture.top_field_first = top_field_first;
1231             }
1232
1233             /* handles sameq here. This is not correct because it may
1234                not be a global option */
1235             big_picture.quality = quality;
1236             if(!me_threshold)
1237                 big_picture.pict_type = 0;
1238 //            big_picture.pts = AV_NOPTS_VALUE;
1239             big_picture.pts= ost->sync_opts;
1240 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1241 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1242             if (ost->forced_kf_index < ost->forced_kf_count &&
1243                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1244                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1245                 ost->forced_kf_index++;
1246             }
1247             ret = avcodec_encode_video(enc,
1248                                        bit_buffer, bit_buffer_size,
1249                                        &big_picture);
1250             if (ret < 0) {
1251                 fprintf(stderr, "Video encoding failed\n");
1252                 ffmpeg_exit(1);
1253             }
1254
1255             if(ret>0){
1256                 pkt.data= bit_buffer;
1257                 pkt.size= ret;
1258                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1259                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1260 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1261    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1262    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1263
1264                 if(enc->coded_frame->key_frame)
1265                     pkt.flags |= AV_PKT_FLAG_KEY;
1266                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1267                 *frame_size = ret;
1268                 video_size += ret;
1269                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1270                 //        enc->frame_number-1, ret, enc->pict_type);
1271                 /* if two pass, output log */
1272                 if (ost->logfile && enc->stats_out) {
1273                     fprintf(ost->logfile, "%s", enc->stats_out);
1274                 }
1275             }
1276         }
1277         ost->sync_opts++;
1278         ost->frame_number++;
1279     }
1280 }
1281
1282 static double psnr(double d){
1283     return -10.0*log(d)/log(10.0);
1284 }
1285
1286 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1287                            int frame_size)
1288 {
1289     AVCodecContext *enc;
1290     int frame_number;
1291     double ti1, bitrate, avg_bitrate;
1292
1293     /* this is executed just the first time do_video_stats is called */
1294     if (!vstats_file) {
1295         vstats_file = fopen(vstats_filename, "w");
1296         if (!vstats_file) {
1297             perror("fopen");
1298             ffmpeg_exit(1);
1299         }
1300     }
1301
1302     enc = ost->st->codec;
1303     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1304         frame_number = ost->frame_number;
1305         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1306         if (enc->flags&CODEC_FLAG_PSNR)
1307             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1308
1309         fprintf(vstats_file,"f_size= %6d ", frame_size);
1310         /* compute pts value */
1311         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1312         if (ti1 < 0.01)
1313             ti1 = 0.01;
1314
1315         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1316         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1317         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1318             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1319         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1320     }
1321 }
1322
1323 static void print_report(AVFormatContext **output_files,
1324                          OutputStream **ost_table, int nb_ostreams,
1325                          int is_last_report)
1326 {
1327     char buf[1024];
1328     OutputStream *ost;
1329     AVFormatContext *oc;
1330     int64_t total_size;
1331     AVCodecContext *enc;
1332     int frame_number, vid, i;
1333     double bitrate, ti1, pts;
1334     static int64_t last_time = -1;
1335     static int qp_histogram[52];
1336
1337     if (!is_last_report) {
1338         int64_t cur_time;
1339         /* display the report every 0.5 seconds */
1340         cur_time = av_gettime();
1341         if (last_time == -1) {
1342             last_time = cur_time;
1343             return;
1344         }
1345         if ((cur_time - last_time) < 500000)
1346             return;
1347         last_time = cur_time;
1348     }
1349
1350
1351     oc = output_files[0];
1352
1353     total_size = avio_size(oc->pb);
1354     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1355         total_size= avio_tell(oc->pb);
1356
1357     buf[0] = '\0';
1358     ti1 = 1e10;
1359     vid = 0;
1360     for(i=0;i<nb_ostreams;i++) {
1361         float q = -1;
1362         ost = ost_table[i];
1363         enc = ost->st->codec;
1364         if (!ost->st->stream_copy && enc->coded_frame)
1365             q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1366         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1368         }
1369         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1370             float t = (av_gettime()-timer_start) / 1000000.0;
1371
1372             frame_number = ost->frame_number;
1373             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1374                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1375             if(is_last_report)
1376                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1377             if(qp_hist){
1378                 int j;
1379                 int qp = lrintf(q);
1380                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1381                     qp_histogram[qp]++;
1382                 for(j=0; j<32; j++)
1383                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1384             }
1385             if (enc->flags&CODEC_FLAG_PSNR){
1386                 int j;
1387                 double error, error_sum=0;
1388                 double scale, scale_sum=0;
1389                 char type[3]= {'Y','U','V'};
1390                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1391                 for(j=0; j<3; j++){
1392                     if(is_last_report){
1393                         error= enc->error[j];
1394                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1395                     }else{
1396                         error= enc->coded_frame->error[j];
1397                         scale= enc->width*enc->height*255.0*255.0;
1398                     }
1399                     if(j) scale/=4;
1400                     error_sum += error;
1401                     scale_sum += scale;
1402                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1403                 }
1404                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1405             }
1406             vid = 1;
1407         }
1408         /* compute min output value */
1409         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1410         if ((pts < ti1) && (pts > 0))
1411             ti1 = pts;
1412     }
1413     if (ti1 < 0.01)
1414         ti1 = 0.01;
1415
1416     if (verbose > 0 || is_last_report) {
1417         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1418
1419         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1420             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1421             (double)total_size / 1024, ti1, bitrate);
1422
1423         if (nb_frames_dup || nb_frames_drop)
1424           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1425                   nb_frames_dup, nb_frames_drop);
1426
1427         if (verbose >= 0)
1428             fprintf(stderr, "%s    \r", buf);
1429
1430         fflush(stderr);
1431     }
1432
1433     if (is_last_report && verbose >= 0){
1434         int64_t raw= audio_size + video_size + extra_size;
1435         fprintf(stderr, "\n");
1436         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1437                 video_size/1024.0,
1438                 audio_size/1024.0,
1439                 extra_size/1024.0,
1440                 100.0*(total_size - raw)/raw
1441         );
1442     }
1443 }
1444
1445 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1446 {
1447     int fill_char = 0x00;
1448     if (sample_fmt == AV_SAMPLE_FMT_U8)
1449         fill_char = 0x80;
1450     memset(buf, fill_char, size);
1451 }
1452
1453 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1454 static int output_packet(InputStream *ist, int ist_index,
1455                          OutputStream **ost_table, int nb_ostreams,
1456                          const AVPacket *pkt)
1457 {
1458     AVFormatContext *os;
1459     OutputStream *ost;
1460     int ret, i;
1461     int got_output;
1462     AVFrame picture;
1463     void *buffer_to_free = NULL;
1464     static unsigned int samples_size= 0;
1465     AVSubtitle subtitle, *subtitle_to_free;
1466     int64_t pkt_pts = AV_NOPTS_VALUE;
1467 #if CONFIG_AVFILTER
1468     int frame_available;
1469 #endif
1470     float quality;
1471
1472     AVPacket avpkt;
1473     int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1474
1475     if(ist->next_pts == AV_NOPTS_VALUE)
1476         ist->next_pts= ist->pts;
1477
1478     if (pkt == NULL) {
1479         /* EOF handling */
1480         av_init_packet(&avpkt);
1481         avpkt.data = NULL;
1482         avpkt.size = 0;
1483         goto handle_eof;
1484     } else {
1485         avpkt = *pkt;
1486     }
1487
1488     if(pkt->dts != AV_NOPTS_VALUE)
1489         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1490     if(pkt->pts != AV_NOPTS_VALUE)
1491         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1492
1493     //while we have more to decode or while the decoder did output something on EOF
1494     while (avpkt.size > 0 || (!pkt && got_output)) {
1495         uint8_t *data_buf, *decoded_data_buf;
1496         int data_size, decoded_data_size;
1497     handle_eof:
1498         ist->pts= ist->next_pts;
1499
1500         if(avpkt.size && avpkt.size != pkt->size &&
1501            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1502             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1503             ist->showed_multi_packet_warning=1;
1504         }
1505
1506         /* decode the packet if needed */
1507         decoded_data_buf = NULL; /* fail safe */
1508         decoded_data_size= 0;
1509         data_buf  = avpkt.data;
1510         data_size = avpkt.size;
1511         subtitle_to_free = NULL;
1512         if (ist->decoding_needed) {
1513             switch(ist->st->codec->codec_type) {
1514             case AVMEDIA_TYPE_AUDIO:{
1515                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1516                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1517                     av_free(samples);
1518                     samples= av_malloc(samples_size);
1519                 }
1520                 decoded_data_size= samples_size;
1521                     /* XXX: could avoid copy if PCM 16 bits with same
1522                        endianness as CPU */
1523                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1524                                             &avpkt);
1525                 if (ret < 0)
1526                     goto fail_decode;
1527                 avpkt.data += ret;
1528                 avpkt.size -= ret;
1529                 data_size   = ret;
1530                 got_output  = decoded_data_size > 0;
1531                 /* Some bug in mpeg audio decoder gives */
1532                 /* decoded_data_size < 0, it seems they are overflows */
1533                 if (!got_output) {
1534                     /* no audio frame */
1535                     continue;
1536                 }
1537                 decoded_data_buf = (uint8_t *)samples;
1538                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1539                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1540                 break;}
1541             case AVMEDIA_TYPE_VIDEO:
1542                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1543                     /* XXX: allocate picture correctly */
1544                     avcodec_get_frame_defaults(&picture);
1545                     avpkt.pts = pkt_pts;
1546                     avpkt.dts = ist->pts;
1547                     pkt_pts = AV_NOPTS_VALUE;
1548
1549                     ret = avcodec_decode_video2(ist->st->codec,
1550                                                 &picture, &got_output, &avpkt);
1551                     quality = same_quality ? picture.quality : 0;
1552                     if (ret < 0)
1553                         goto fail_decode;
1554                     if (!got_output) {
1555                         /* no picture yet */
1556                         goto discard_packet;
1557                     }
1558                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1559                     if (ist->st->codec->time_base.num != 0) {
1560                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1561                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1562                                           ist->st->codec->time_base.num * ticks) /
1563                             ist->st->codec->time_base.den;
1564                     }
1565                     avpkt.size = 0;
1566                     buffer_to_free = NULL;
1567                     pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1568                     break;
1569             case AVMEDIA_TYPE_SUBTITLE:
1570                 ret = avcodec_decode_subtitle2(ist->st->codec,
1571                                                &subtitle, &got_output, &avpkt);
1572                 if (ret < 0)
1573                     goto fail_decode;
1574                 if (!got_output) {
1575                     goto discard_packet;
1576                 }
1577                 subtitle_to_free = &subtitle;
1578                 avpkt.size = 0;
1579                 break;
1580             default:
1581                 goto fail_decode;
1582             }
1583         } else {
1584             switch(ist->st->codec->codec_type) {
1585             case AVMEDIA_TYPE_AUDIO:
1586                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1587                     ist->st->codec->sample_rate;
1588                 break;
1589             case AVMEDIA_TYPE_VIDEO:
1590                 if (ist->st->codec->time_base.num != 0) {
1591                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1592                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1593                                       ist->st->codec->time_base.num * ticks) /
1594                         ist->st->codec->time_base.den;
1595                 }
1596                 break;
1597             }
1598             ret = avpkt.size;
1599             avpkt.size = 0;
1600         }
1601
1602 #if CONFIG_AVFILTER
1603         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1604             for (i = 0; i < nb_ostreams; i++) {
1605                 ost = ost_table[i];
1606                 if (ost->input_video_filter && ost->source_index == ist_index) {
1607                     AVRational sar;
1608                     if (ist->st->sample_aspect_ratio.num)
1609                         sar = ist->st->sample_aspect_ratio;
1610                     else
1611                         sar = ist->st->codec->sample_aspect_ratio;
1612                     // add it to be filtered
1613                     av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1614                                              ist->pts,
1615                                              sar);
1616                 }
1617             }
1618         }
1619 #endif
1620
1621         // preprocess audio (volume)
1622         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1623             if (audio_volume != 256) {
1624                 short *volp;
1625                 volp = samples;
1626                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1627                     int v = ((*volp) * audio_volume + 128) >> 8;
1628                     if (v < -32768) v = -32768;
1629                     if (v >  32767) v = 32767;
1630                     *volp++ = v;
1631                 }
1632             }
1633         }
1634
1635         /* frame rate emulation */
1636         if (rate_emu) {
1637             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1638             int64_t now = av_gettime() - ist->start;
1639             if (pts > now)
1640                 usleep(pts - now);
1641         }
1642         /* if output time reached then transcode raw format,
1643            encode packets and output them */
1644         if (start_time == 0 || ist->pts >= start_time)
1645             for(i=0;i<nb_ostreams;i++) {
1646                 int frame_size;
1647
1648                 ost = ost_table[i];
1649                 if (ost->source_index == ist_index) {
1650 #if CONFIG_AVFILTER
1651                 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1652                     !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1653                 while (frame_available) {
1654                     AVRational ist_pts_tb;
1655                     if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1656                         get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1657                     if (ost->picref)
1658                         ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1659 #endif
1660                     os = output_files[ost->file_index];
1661
1662                     /* set the input output pts pairs */
1663                     //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1664
1665                     if (ost->encoding_needed) {
1666                         av_assert0(ist->decoding_needed);
1667                         switch(ost->st->codec->codec_type) {
1668                         case AVMEDIA_TYPE_AUDIO:
1669                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1670                             break;
1671                         case AVMEDIA_TYPE_VIDEO:
1672 #if CONFIG_AVFILTER
1673                             if (ost->picref->video && !ost->frame_aspect_ratio)
1674                                 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1675 #endif
1676                             do_video_out(os, ost, ist, &picture, &frame_size,
1677                                          same_quality ? quality : ost->st->codec->global_quality);
1678                             if (vstats_filename && frame_size)
1679                                 do_video_stats(os, ost, frame_size);
1680                             break;
1681                         case AVMEDIA_TYPE_SUBTITLE:
1682                             do_subtitle_out(os, ost, ist, &subtitle,
1683                                             pkt->pts);
1684                             break;
1685                         default:
1686                             abort();
1687                         }
1688                     } else {
1689                         AVFrame avframe; //FIXME/XXX remove this
1690                         AVPacket opkt;
1691                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1692
1693                         av_init_packet(&opkt);
1694
1695                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1696 #if !CONFIG_AVFILTER
1697                             continue;
1698 #else
1699                             goto cont;
1700 #endif
1701
1702                         /* no reencoding needed : output the packet directly */
1703                         /* force the input stream PTS */
1704
1705                         avcodec_get_frame_defaults(&avframe);
1706                         ost->st->codec->coded_frame= &avframe;
1707                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1708
1709                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1710                             audio_size += data_size;
1711                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1712                             video_size += data_size;
1713                             ost->sync_opts++;
1714                         }
1715
1716                         opkt.stream_index= ost->index;
1717                         if(pkt->pts != AV_NOPTS_VALUE)
1718                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1719                         else
1720                             opkt.pts= AV_NOPTS_VALUE;
1721
1722                         if (pkt->dts == AV_NOPTS_VALUE)
1723                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1724                         else
1725                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1726                         opkt.dts -= ost_tb_start_time;
1727
1728                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1729                         opkt.flags= pkt->flags;
1730
1731                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1732                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1733                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1734                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1735                            ) {
1736                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1737                                 opkt.destruct= av_destruct_packet;
1738                         } else {
1739                             opkt.data = data_buf;
1740                             opkt.size = data_size;
1741                         }
1742
1743                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1744                         ost->st->codec->frame_number++;
1745                         ost->frame_number++;
1746                         av_free_packet(&opkt);
1747                     }
1748 #if CONFIG_AVFILTER
1749                     cont:
1750                     frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1751                                        ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1752                     if (ost->picref)
1753                         avfilter_unref_buffer(ost->picref);
1754                 }
1755 #endif
1756                 }
1757             }
1758
1759         av_free(buffer_to_free);
1760         /* XXX: allocate the subtitles in the codec ? */
1761         if (subtitle_to_free) {
1762             avsubtitle_free(subtitle_to_free);
1763             subtitle_to_free = NULL;
1764         }
1765     }
1766  discard_packet:
1767     if (pkt == NULL) {
1768         /* EOF handling */
1769
1770         for(i=0;i<nb_ostreams;i++) {
1771             ost = ost_table[i];
1772             if (ost->source_index == ist_index) {
1773                 AVCodecContext *enc= ost->st->codec;
1774                 os = output_files[ost->file_index];
1775
1776                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1777                     continue;
1778                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1779                     continue;
1780
1781                 if (ost->encoding_needed) {
1782                     for(;;) {
1783                         AVPacket pkt;
1784                         int fifo_bytes;
1785                         av_init_packet(&pkt);
1786                         pkt.stream_index= ost->index;
1787
1788                         switch(ost->st->codec->codec_type) {
1789                         case AVMEDIA_TYPE_AUDIO:
1790                             fifo_bytes = av_fifo_size(ost->fifo);
1791                             ret = 0;
1792                             /* encode any samples remaining in fifo */
1793                             if (fifo_bytes > 0) {
1794                                 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1795                                 int fs_tmp = enc->frame_size;
1796
1797                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1798                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1799                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1800                                 } else { /* pad */
1801                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1802                                     if (allocated_audio_buf_size < frame_bytes)
1803                                         ffmpeg_exit(1);
1804                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1805                                 }
1806
1807                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1808                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1809                                                           ost->st->time_base.num, enc->sample_rate);
1810                                 enc->frame_size = fs_tmp;
1811                             }
1812                             if(ret <= 0) {
1813                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1814                             }
1815                             if (ret < 0) {
1816                                 fprintf(stderr, "Audio encoding failed\n");
1817                                 ffmpeg_exit(1);
1818                             }
1819                             audio_size += ret;
1820                             pkt.flags |= AV_PKT_FLAG_KEY;
1821                             break;
1822                         case AVMEDIA_TYPE_VIDEO:
1823                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1824                             if (ret < 0) {
1825                                 fprintf(stderr, "Video encoding failed\n");
1826                                 ffmpeg_exit(1);
1827                             }
1828                             video_size += ret;
1829                             if(enc->coded_frame && enc->coded_frame->key_frame)
1830                                 pkt.flags |= AV_PKT_FLAG_KEY;
1831                             if (ost->logfile && enc->stats_out) {
1832                                 fprintf(ost->logfile, "%s", enc->stats_out);
1833                             }
1834                             break;
1835                         default:
1836                             ret=-1;
1837                         }
1838
1839                         if(ret<=0)
1840                             break;
1841                         pkt.data= bit_buffer;
1842                         pkt.size= ret;
1843                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1844                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1845                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1846                     }
1847                 }
1848             }
1849         }
1850     }
1851
1852     return 0;
1853  fail_decode:
1854     return -1;
1855 }
1856
1857 static void print_sdp(AVFormatContext **avc, int n)
1858 {
1859     char sdp[2048];
1860
1861     av_sdp_create(avc, n, sdp, sizeof(sdp));
1862     printf("SDP:\n%s\n", sdp);
1863     fflush(stdout);
1864 }
1865
1866 static int copy_chapters(int infile, int outfile)
1867 {
1868     AVFormatContext *is = input_files[infile].ctx;
1869     AVFormatContext *os = output_files[outfile];
1870     int i;
1871
1872     for (i = 0; i < is->nb_chapters; i++) {
1873         AVChapter *in_ch = is->chapters[i], *out_ch;
1874         int64_t ts_off   = av_rescale_q(start_time - input_files[infile].ts_offset,
1875                                       AV_TIME_BASE_Q, in_ch->time_base);
1876         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1877                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1878
1879
1880         if (in_ch->end < ts_off)
1881             continue;
1882         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1883             break;
1884
1885         out_ch = av_mallocz(sizeof(AVChapter));
1886         if (!out_ch)
1887             return AVERROR(ENOMEM);
1888
1889         out_ch->id        = in_ch->id;
1890         out_ch->time_base = in_ch->time_base;
1891         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1892         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1893
1894         if (metadata_chapters_autocopy)
1895             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1896
1897         os->nb_chapters++;
1898         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1899         if (!os->chapters)
1900             return AVERROR(ENOMEM);
1901         os->chapters[os->nb_chapters - 1] = out_ch;
1902     }
1903     return 0;
1904 }
1905
1906 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1907                                     AVCodecContext *avctx)
1908 {
1909     char *p;
1910     int n = 1, i;
1911     int64_t t;
1912
1913     for (p = kf; *p; p++)
1914         if (*p == ',')
1915             n++;
1916     ost->forced_kf_count = n;
1917     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1918     if (!ost->forced_kf_pts) {
1919         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1920         ffmpeg_exit(1);
1921     }
1922     for (i = 0; i < n; i++) {
1923         p = i ? strchr(p, ',') + 1 : kf;
1924         t = parse_time_or_die("force_key_frames", p, 1);
1925         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1926     }
1927 }
1928
1929 /*
1930  * The following code is the main loop of the file converter
1931  */
1932 static int transcode(AVFormatContext **output_files,
1933                      int nb_output_files,
1934                      InputFile *input_files,
1935                      int nb_input_files,
1936                      StreamMap *stream_maps, int nb_stream_maps)
1937 {
1938     int ret = 0, i, j, k, n, nb_ostreams = 0;
1939     AVFormatContext *is, *os;
1940     AVCodecContext *codec, *icodec;
1941     OutputStream *ost, **ost_table = NULL;
1942     InputStream *ist;
1943     char error[1024];
1944     int want_sdp = 1;
1945     uint8_t no_packet[MAX_FILES]={0};
1946     int no_packet_count=0;
1947
1948     if (rate_emu)
1949         for (i = 0; i < nb_input_streams; i++)
1950             input_streams[i].start = av_gettime();
1951
1952     /* output stream init */
1953     nb_ostreams = 0;
1954     for(i=0;i<nb_output_files;i++) {
1955         os = output_files[i];
1956         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1957             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1958             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1959             ret = AVERROR(EINVAL);
1960             goto fail;
1961         }
1962         nb_ostreams += os->nb_streams;
1963     }
1964     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1965         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1966         ret = AVERROR(EINVAL);
1967         goto fail;
1968     }
1969
1970     /* Sanity check the mapping args -- do the input files & streams exist? */
1971     for(i=0;i<nb_stream_maps;i++) {
1972         int fi = stream_maps[i].file_index;
1973         int si = stream_maps[i].stream_index;
1974
1975         if (fi < 0 || fi > nb_input_files - 1 ||
1976             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1977             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1978             ret = AVERROR(EINVAL);
1979             goto fail;
1980         }
1981         fi = stream_maps[i].sync_file_index;
1982         si = stream_maps[i].sync_stream_index;
1983         if (fi < 0 || fi > nb_input_files - 1 ||
1984             si < 0 || si > input_files[fi].ctx->nb_streams - 1) {
1985             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1986             ret = AVERROR(EINVAL);
1987             goto fail;
1988         }
1989     }
1990
1991     ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1992     if (!ost_table)
1993         goto fail;
1994     n = 0;
1995     for(k=0;k<nb_output_files;k++) {
1996         os = output_files[k];
1997         for(i=0;i<os->nb_streams;i++,n++) {
1998             int found;
1999             ost = ost_table[n] = output_streams_for_file[k][i];
2000             if (nb_stream_maps > 0) {
2001                 ost->source_index = input_files[stream_maps[n].file_index].ist_index +
2002                     stream_maps[n].stream_index;
2003
2004                 /* Sanity check that the stream types match */
2005                 if (input_streams[ost->source_index].st->codec->codec_type != ost->st->codec->codec_type) {
2006                     int i= ost->file_index;
2007                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2008                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2009                         stream_maps[n].file_index, stream_maps[n].stream_index,
2010                         ost->file_index, ost->index);
2011                     ffmpeg_exit(1);
2012                 }
2013
2014             } else {
2015                 int best_nb_frames=-1;
2016                 /* get corresponding input stream index : we select the first one with the right type */
2017                 found = 0;
2018                 for (j = 0; j < nb_input_streams; j++) {
2019                     int skip=0;
2020                     ist = &input_streams[j];
2021                     if(opt_programid){
2022                         int pi,si;
2023                         AVFormatContext *f = input_files[ist->file_index].ctx;
2024                         skip=1;
2025                         for(pi=0; pi<f->nb_programs; pi++){
2026                             AVProgram *p= f->programs[pi];
2027                             if(p->id == opt_programid)
2028                                 for(si=0; si<p->nb_stream_indexes; si++){
2029                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2030                                         skip=0;
2031                                 }
2032                         }
2033                     }
2034                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2035                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2036                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2037                             best_nb_frames= ist->st->codec_info_nb_frames;
2038                             ost->source_index = j;
2039                             found = 1;
2040                         }
2041                     }
2042                 }
2043
2044                 if (!found) {
2045                     if(! opt_programid) {
2046                         /* try again and reuse existing stream */
2047                         for (j = 0; j < nb_input_streams; j++) {
2048                             ist = &input_streams[j];
2049                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2050                                 && ist->st->discard != AVDISCARD_ALL) {
2051                                 ost->source_index = j;
2052                                 found = 1;
2053                             }
2054                         }
2055                     }
2056                     if (!found) {
2057                         int i= ost->file_index;
2058                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2059                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2060                                 ost->file_index, ost->index);
2061                         ffmpeg_exit(1);
2062                     }
2063                 }
2064             }
2065             ist = &input_streams[ost->source_index];
2066             ist->discard = 0;
2067             ost->sync_ist = (nb_stream_maps > 0) ?
2068                 &input_streams[input_files[stream_maps[n].sync_file_index].ist_index +
2069                          stream_maps[n].sync_stream_index] : ist;
2070         }
2071     }
2072
2073     /* for each output stream, we compute the right encoding parameters */
2074     for(i=0;i<nb_ostreams;i++) {
2075         ost = ost_table[i];
2076         os = output_files[ost->file_index];
2077         ist = &input_streams[ost->source_index];
2078
2079         codec = ost->st->codec;
2080         icodec = ist->st->codec;
2081
2082         if (metadata_streams_autocopy)
2083             av_dict_copy(&ost->st->metadata, ist->st->metadata,
2084                          AV_DICT_DONT_OVERWRITE);
2085
2086         ost->st->disposition = ist->st->disposition;
2087         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2088         codec->chroma_sample_location = icodec->chroma_sample_location;
2089
2090         if (ost->st->stream_copy) {
2091             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2092
2093             if (extra_size > INT_MAX)
2094                 goto fail;
2095
2096             /* if stream_copy is selected, no need to decode or encode */
2097             codec->codec_id = icodec->codec_id;
2098             codec->codec_type = icodec->codec_type;
2099
2100             if(!codec->codec_tag){
2101                 if(   !os->oformat->codec_tag
2102                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2103                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2104                     codec->codec_tag = icodec->codec_tag;
2105             }
2106
2107             codec->bit_rate = icodec->bit_rate;
2108             codec->rc_max_rate    = icodec->rc_max_rate;
2109             codec->rc_buffer_size = icodec->rc_buffer_size;
2110             codec->extradata= av_mallocz(extra_size);
2111             if (!codec->extradata)
2112                 goto fail;
2113             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2114             codec->extradata_size= icodec->extradata_size;
2115             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){
2116                 codec->time_base = icodec->time_base;
2117                 codec->time_base.num *= icodec->ticks_per_frame;
2118                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2119                           codec->time_base.num, codec->time_base.den, INT_MAX);
2120             }else
2121                 codec->time_base = ist->st->time_base;
2122             switch(codec->codec_type) {
2123             case AVMEDIA_TYPE_AUDIO:
2124                 if(audio_volume != 256) {
2125                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2126                     ffmpeg_exit(1);
2127                 }
2128                 codec->channel_layout = icodec->channel_layout;
2129                 codec->sample_rate = icodec->sample_rate;
2130                 codec->channels = icodec->channels;
2131                 codec->frame_size = icodec->frame_size;
2132                 codec->audio_service_type = icodec->audio_service_type;
2133                 codec->block_align= icodec->block_align;
2134                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2135                     codec->block_align= 0;
2136                 if(codec->codec_id == CODEC_ID_AC3)
2137                     codec->block_align= 0;
2138                 break;
2139             case AVMEDIA_TYPE_VIDEO:
2140                 codec->pix_fmt = icodec->pix_fmt;
2141                 codec->width = icodec->width;
2142                 codec->height = icodec->height;
2143                 codec->has_b_frames = icodec->has_b_frames;
2144                 if (!codec->sample_aspect_ratio.num) {
2145                     codec->sample_aspect_ratio =
2146                     ost->st->sample_aspect_ratio =
2147                         ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
2148                         ist->st->codec->sample_aspect_ratio.num ?
2149                         ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
2150                 }
2151                 break;
2152             case AVMEDIA_TYPE_SUBTITLE:
2153                 codec->width = icodec->width;
2154                 codec->height = icodec->height;
2155                 break;
2156             case AVMEDIA_TYPE_DATA:
2157                 break;
2158             default:
2159                 abort();
2160             }
2161         } else {
2162             if (!ost->enc)
2163                 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
2164             switch(codec->codec_type) {
2165             case AVMEDIA_TYPE_AUDIO:
2166                 ost->fifo= av_fifo_alloc(1024);
2167                 if(!ost->fifo)
2168                     goto fail;
2169                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2170                 if (!codec->sample_rate) {
2171                     codec->sample_rate = icodec->sample_rate;
2172                     if (icodec->lowres)
2173                         codec->sample_rate >>= icodec->lowres;
2174                 }
2175                 choose_sample_rate(ost->st, ost->enc);
2176                 codec->time_base = (AVRational){1, codec->sample_rate};
2177                 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
2178                     codec->sample_fmt = icodec->sample_fmt;
2179                 choose_sample_fmt(ost->st, ost->enc);
2180                 if (!codec->channels)
2181                     codec->channels = icodec->channels;
2182                 codec->channel_layout = icodec->channel_layout;
2183                 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
2184                     codec->channel_layout = 0;
2185                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2186                 icodec->request_channels = codec->channels;
2187                 ist->decoding_needed = 1;
2188                 ost->encoding_needed = 1;
2189                 ost->resample_sample_fmt  = icodec->sample_fmt;
2190                 ost->resample_sample_rate = icodec->sample_rate;
2191                 ost->resample_channels    = icodec->channels;
2192                 break;
2193             case AVMEDIA_TYPE_VIDEO:
2194                 if (codec->pix_fmt == PIX_FMT_NONE)
2195                     codec->pix_fmt = icodec->pix_fmt;
2196                 choose_pixel_fmt(ost->st, ost->enc);
2197
2198                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2199                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2200                     ffmpeg_exit(1);
2201                 }
2202                 ost->video_resample = codec->width   != icodec->width  ||
2203                                       codec->height  != icodec->height ||
2204                                       codec->pix_fmt != icodec->pix_fmt;
2205                 if (ost->video_resample) {
2206 #if !CONFIG_AVFILTER
2207                     avcodec_get_frame_defaults(&ost->pict_tmp);
2208                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2209                                          codec->width, codec->height)) {
2210                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2211                         ffmpeg_exit(1);
2212                     }
2213                     ost->img_resample_ctx = sws_getContext(
2214                         icodec->width,
2215                         icodec->height,
2216                             icodec->pix_fmt,
2217                             codec->width,
2218                             codec->height,
2219                             codec->pix_fmt,
2220                             ost->sws_flags, NULL, NULL, NULL);
2221                     if (ost->img_resample_ctx == NULL) {
2222                         fprintf(stderr, "Cannot get resampling context\n");
2223                         ffmpeg_exit(1);
2224                     }
2225 #endif
2226                     codec->bits_per_raw_sample= 0;
2227                 }
2228                 if (!codec->width || !codec->height) {
2229                     codec->width  = icodec->width;
2230                     codec->height = icodec->height;
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                         ffmpeg_exit(1);
2275                     }
2276                     ost->logfile = f;
2277                 } else {
2278                     char  *logbuffer;
2279                     size_t logbuffer_size;
2280                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2281                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2282                         ffmpeg_exit(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_open(ost->st->codec, codec) < 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             extra_size += ost->st->codec->extradata_size;
2331         }
2332     }
2333
2334     /* open each decoder */
2335     for (i = 0; i < nb_input_streams; i++) {
2336         ist = &input_streams[i];
2337         if (ist->decoding_needed) {
2338             AVCodec *codec = ist->dec;
2339             if (!codec)
2340                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2341             if (!codec) {
2342                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2343                         ist->st->codec->codec_id, ist->file_index, ist->st->index);
2344                 ret = AVERROR(EINVAL);
2345                 goto dump_format;
2346             }
2347
2348             /* update requested sample format for the decoder based on the
2349                corresponding encoder sample format */
2350             for (j = 0; j < nb_ostreams; j++) {
2351                 ost = ost_table[j];
2352                 if (ost->source_index == i) {
2353                     update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2354                     break;
2355                 }
2356             }
2357
2358             if (avcodec_open(ist->st->codec, codec) < 0) {
2359                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2360                         ist->file_index, ist->st->index);
2361                 ret = AVERROR(EINVAL);
2362                 goto dump_format;
2363             }
2364             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2365             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2366         }
2367     }
2368
2369     /* init pts */
2370     for (i = 0; i < nb_input_streams; i++) {
2371         AVStream *st;
2372         ist = &input_streams[i];
2373         st= ist->st;
2374         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2375         ist->next_pts = AV_NOPTS_VALUE;
2376         init_pts_correction(&ist->pts_ctx);
2377         ist->is_start = 1;
2378     }
2379
2380     /* set meta data information from input file if required */
2381     for (i=0;i<nb_meta_data_maps;i++) {
2382         AVFormatContext *files[2];
2383         AVDictionary    **meta[2];
2384         int j;
2385
2386 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2387         if ((index) < 0 || (index) >= (nb_elems)) {\
2388             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2389                      (desc), (index));\
2390             ret = AVERROR(EINVAL);\
2391             goto dump_format;\
2392         }
2393
2394         int out_file_index = meta_data_maps[i][0].file;
2395         int in_file_index = meta_data_maps[i][1].file;
2396         if (in_file_index < 0 || out_file_index < 0)
2397             continue;
2398         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2399         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2400
2401         files[0] = output_files[out_file_index];
2402         files[1] = input_files[in_file_index].ctx;
2403
2404         for (j = 0; j < 2; j++) {
2405             MetadataMap *map = &meta_data_maps[i][j];
2406
2407             switch (map->type) {
2408             case 'g':
2409                 meta[j] = &files[j]->metadata;
2410                 break;
2411             case 's':
2412                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2413                 meta[j] = &files[j]->streams[map->index]->metadata;
2414                 break;
2415             case 'c':
2416                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2417                 meta[j] = &files[j]->chapters[map->index]->metadata;
2418                 break;
2419             case 'p':
2420                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2421                 meta[j] = &files[j]->programs[map->index]->metadata;
2422                 break;
2423             }
2424         }
2425
2426         av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
2427     }
2428
2429     /* copy global metadata by default */
2430     if (metadata_global_autocopy) {
2431
2432         for (i = 0; i < nb_output_files; i++)
2433             av_dict_copy(&output_files[i]->metadata, input_files[0].ctx->metadata,
2434                          AV_DICT_DONT_OVERWRITE);
2435     }
2436
2437     /* copy chapters according to chapter maps */
2438     for (i = 0; i < nb_chapter_maps; i++) {
2439         int infile  = chapter_maps[i].in_file;
2440         int outfile = chapter_maps[i].out_file;
2441
2442         if (infile < 0 || outfile < 0)
2443             continue;
2444         if (infile >= nb_input_files) {
2445             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2446             ret = AVERROR(EINVAL);
2447             goto dump_format;
2448         }
2449         if (outfile >= nb_output_files) {
2450             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2451             ret = AVERROR(EINVAL);
2452             goto dump_format;
2453         }
2454         copy_chapters(infile, outfile);
2455     }
2456
2457     /* copy chapters from the first input file that has them*/
2458     if (!nb_chapter_maps)
2459         for (i = 0; i < nb_input_files; i++) {
2460             if (!input_files[i].ctx->nb_chapters)
2461                 continue;
2462
2463             for (j = 0; j < nb_output_files; j++)
2464                 if ((ret = copy_chapters(i, j)) < 0)
2465                     goto dump_format;
2466             break;
2467         }
2468
2469     /* open files and write file headers */
2470     for(i=0;i<nb_output_files;i++) {
2471         os = output_files[i];
2472         if (avformat_write_header(os, &output_opts[i]) < 0) {
2473             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2474             ret = AVERROR(EINVAL);
2475             goto dump_format;
2476         }
2477         assert_avoptions(output_opts[i]);
2478         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2479             want_sdp = 0;
2480         }
2481     }
2482
2483  dump_format:
2484     /* dump the file output parameters - cannot be done before in case
2485        of stream copy */
2486     for(i=0;i<nb_output_files;i++) {
2487         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2488     }
2489
2490     /* dump the stream mapping */
2491     if (verbose >= 0) {
2492         fprintf(stderr, "Stream mapping:\n");
2493         for(i=0;i<nb_ostreams;i++) {
2494             ost = ost_table[i];
2495             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2496                     input_streams[ost->source_index].file_index,
2497                     input_streams[ost->source_index].st->index,
2498                     ost->file_index,
2499                     ost->index);
2500             if (ost->sync_ist != &input_streams[ost->source_index])
2501                 fprintf(stderr, " [sync #%d.%d]",
2502                         ost->sync_ist->file_index,
2503                         ost->sync_ist->st->index);
2504             fprintf(stderr, "\n");
2505         }
2506     }
2507
2508     if (ret) {
2509         fprintf(stderr, "%s\n", error);
2510         goto fail;
2511     }
2512
2513     if (want_sdp) {
2514         print_sdp(output_files, nb_output_files);
2515     }
2516
2517     if (verbose >= 0)
2518         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2519     term_init();
2520
2521     timer_start = av_gettime();
2522
2523     for(; received_sigterm == 0;) {
2524         int file_index, ist_index;
2525         AVPacket pkt;
2526         double ipts_min;
2527         double opts_min;
2528
2529     redo:
2530         ipts_min= 1e100;
2531         opts_min= 1e100;
2532
2533         /* select the stream that we must read now by looking at the
2534            smallest output pts */
2535         file_index = -1;
2536         for(i=0;i<nb_ostreams;i++) {
2537             double ipts, opts;
2538             ost = ost_table[i];
2539             os = output_files[ost->file_index];
2540             ist = &input_streams[ost->source_index];
2541             if(ist->is_past_recording_time || no_packet[ist->file_index])
2542                 continue;
2543                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2544             ipts = (double)ist->pts;
2545             if (!input_files[ist->file_index].eof_reached){
2546                 if(ipts < ipts_min) {
2547                     ipts_min = ipts;
2548                     if(input_sync ) file_index = ist->file_index;
2549                 }
2550                 if(opts < opts_min) {
2551                     opts_min = opts;
2552                     if(!input_sync) file_index = ist->file_index;
2553                 }
2554             }
2555             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2556                 file_index= -1;
2557                 break;
2558             }
2559         }
2560         /* if none, if is finished */
2561         if (file_index < 0) {
2562             if(no_packet_count){
2563                 no_packet_count=0;
2564                 memset(no_packet, 0, sizeof(no_packet));
2565                 usleep(10000);
2566                 continue;
2567             }
2568             break;
2569         }
2570
2571         /* finish if limit size exhausted */
2572         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2573             break;
2574
2575         /* read a frame from it and output it in the fifo */
2576         is = input_files[file_index].ctx;
2577         ret= av_read_frame(is, &pkt);
2578         if(ret == AVERROR(EAGAIN)){
2579             no_packet[file_index]=1;
2580             no_packet_count++;
2581             continue;
2582         }
2583         if (ret < 0) {
2584             input_files[file_index].eof_reached = 1;
2585             if (opt_shortest)
2586                 break;
2587             else
2588                 continue;
2589         }
2590
2591         no_packet_count=0;
2592         memset(no_packet, 0, sizeof(no_packet));
2593
2594         if (do_pkt_dump) {
2595             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2596                              is->streams[pkt.stream_index]);
2597         }
2598         /* the following test is needed in case new streams appear
2599            dynamically in stream : we ignore them */
2600         if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2601             goto discard_packet;
2602         ist_index = input_files[file_index].ist_index + pkt.stream_index;
2603         ist = &input_streams[ist_index];
2604         if (ist->discard)
2605             goto discard_packet;
2606
2607         if (pkt.dts != AV_NOPTS_VALUE)
2608             pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2609         if (pkt.pts != AV_NOPTS_VALUE)
2610             pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2611
2612         if (ist->ts_scale) {
2613             if(pkt.pts != AV_NOPTS_VALUE)
2614                 pkt.pts *= ist->ts_scale;
2615             if(pkt.dts != AV_NOPTS_VALUE)
2616                 pkt.dts *= ist->ts_scale;
2617         }
2618
2619 //        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);
2620         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2621             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2622             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2623             int64_t delta= pkt_dts - ist->next_pts;
2624             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2625                 input_files[ist->file_index].ts_offset -= delta;
2626                 if (verbose > 2)
2627                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2628                             delta, input_files[ist->file_index].ts_offset);
2629                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2630                 if(pkt.pts != AV_NOPTS_VALUE)
2631                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2632             }
2633         }
2634
2635         /* finish if recording time exhausted */
2636         if (recording_time != INT64_MAX &&
2637             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2638             ist->is_past_recording_time = 1;
2639             goto discard_packet;
2640         }
2641
2642         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2643         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2644
2645             if (verbose >= 0)
2646                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2647                         ist->file_index, ist->st->index);
2648             if (exit_on_error)
2649                 ffmpeg_exit(1);
2650             av_free_packet(&pkt);
2651             goto redo;
2652         }
2653
2654     discard_packet:
2655         av_free_packet(&pkt);
2656
2657         /* dump report by using the output first video and audio streams */
2658         print_report(output_files, ost_table, nb_ostreams, 0);
2659     }
2660
2661     /* at the end of stream, we must flush the decoder buffers */
2662     for (i = 0; i < nb_input_streams; i++) {
2663         ist = &input_streams[i];
2664         if (ist->decoding_needed) {
2665             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2666         }
2667     }
2668
2669     term_exit();
2670
2671     /* write the trailer if needed and close file */
2672     for(i=0;i<nb_output_files;i++) {
2673         os = output_files[i];
2674         av_write_trailer(os);
2675     }
2676
2677     /* dump report by using the first video and audio streams */
2678     print_report(output_files, ost_table, nb_ostreams, 1);
2679
2680     /* close each encoder */
2681     for(i=0;i<nb_ostreams;i++) {
2682         ost = ost_table[i];
2683         if (ost->encoding_needed) {
2684             av_freep(&ost->st->codec->stats_in);
2685             avcodec_close(ost->st->codec);
2686         }
2687 #if CONFIG_AVFILTER
2688         avfilter_graph_free(&ost->graph);
2689 #endif
2690     }
2691
2692     /* close each decoder */
2693     for (i = 0; i < nb_input_streams; i++) {
2694         ist = &input_streams[i];
2695         if (ist->decoding_needed) {
2696             avcodec_close(ist->st->codec);
2697         }
2698     }
2699
2700     /* finished ! */
2701     ret = 0;
2702
2703  fail:
2704     av_freep(&bit_buffer);
2705
2706     if (ost_table) {
2707         for(i=0;i<nb_ostreams;i++) {
2708             ost = ost_table[i];
2709             if (ost) {
2710                 if (ost->st->stream_copy)
2711                     av_freep(&ost->st->codec->extradata);
2712                 if (ost->logfile) {
2713                     fclose(ost->logfile);
2714                     ost->logfile = NULL;
2715                 }
2716                 av_fifo_free(ost->fifo); /* works even if fifo is not
2717                                              initialized but set to zero */
2718                 av_freep(&ost->st->codec->subtitle_header);
2719                 av_free(ost->pict_tmp.data[0]);
2720                 av_free(ost->forced_kf_pts);
2721                 if (ost->video_resample)
2722                     sws_freeContext(ost->img_resample_ctx);
2723                 if (ost->resample)
2724                     audio_resample_close(ost->resample);
2725                 if (ost->reformat_ctx)
2726                     av_audio_convert_free(ost->reformat_ctx);
2727                 av_free(ost);
2728             }
2729         }
2730         av_free(ost_table);
2731     }
2732     return ret;
2733 }
2734
2735 static int opt_format(const char *opt, const char *arg)
2736 {
2737     last_asked_format = arg;
2738     return 0;
2739 }
2740
2741 static int opt_video_rc_override_string(const char *opt, const char *arg)
2742 {
2743     video_rc_override_string = arg;
2744     return 0;
2745 }
2746
2747 static int opt_me_threshold(const char *opt, const char *arg)
2748 {
2749     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2750     return 0;
2751 }
2752
2753 static int opt_verbose(const char *opt, const char *arg)
2754 {
2755     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2756     return 0;
2757 }
2758
2759 static int opt_frame_rate(const char *opt, const char *arg)
2760 {
2761     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2762         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2763         ffmpeg_exit(1);
2764     }
2765     return 0;
2766 }
2767
2768 static int opt_bitrate(const char *opt, const char *arg)
2769 {
2770     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2771
2772     opt_default(opt, arg);
2773
2774     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2775         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2776
2777     return 0;
2778 }
2779
2780 static int opt_frame_crop(const char *opt, const char *arg)
2781 {
2782     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2783     return AVERROR(EINVAL);
2784 }
2785
2786 static int opt_frame_size(const char *opt, const char *arg)
2787 {
2788     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2789         fprintf(stderr, "Incorrect frame size\n");
2790         return AVERROR(EINVAL);
2791     }
2792     return 0;
2793 }
2794
2795 static int opt_pad(const char *opt, const char *arg) {
2796     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2797     return -1;
2798 }
2799
2800 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2801 {
2802     if (strcmp(arg, "list")) {
2803         frame_pix_fmt = av_get_pix_fmt(arg);
2804         if (frame_pix_fmt == PIX_FMT_NONE) {
2805             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2806             return AVERROR(EINVAL);
2807         }
2808     } else {
2809         show_pix_fmts();
2810         ffmpeg_exit(0);
2811     }
2812     return 0;
2813 }
2814
2815 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2816 {
2817     int x = 0, y = 0;
2818     double ar = 0;
2819     const char *p;
2820     char *end;
2821
2822     p = strchr(arg, ':');
2823     if (p) {
2824         x = strtol(arg, &end, 10);
2825         if (end == p)
2826             y = strtol(end+1, &end, 10);
2827         if (x > 0 && y > 0)
2828             ar = (double)x / (double)y;
2829     } else
2830         ar = strtod(arg, NULL);
2831
2832     if (!ar) {
2833         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2834         return AVERROR(EINVAL);
2835     }
2836     frame_aspect_ratio = ar;
2837     return 0;
2838 }
2839
2840 static int opt_metadata(const char *opt, const char *arg)
2841 {
2842     char *mid= strchr(arg, '=');
2843
2844     if(!mid){
2845         fprintf(stderr, "Missing =\n");
2846         ffmpeg_exit(1);
2847     }
2848     *mid++= 0;
2849
2850     av_dict_set(&metadata, arg, mid, 0);
2851
2852     return 0;
2853 }
2854
2855 static int opt_qscale(const char *opt, const char *arg)
2856 {
2857     video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2858     if (video_qscale == 0) {
2859         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2860         return AVERROR(EINVAL);
2861     }
2862     return 0;
2863 }
2864
2865 static int opt_top_field_first(const char *opt, const char *arg)
2866 {
2867     top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2868     return 0;
2869 }
2870
2871 static int opt_thread_count(const char *opt, const char *arg)
2872 {
2873     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2874 #if !HAVE_THREADS
2875     if (verbose >= 0)
2876         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2877 #endif
2878     return 0;
2879 }
2880
2881 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2882 {
2883     if (strcmp(arg, "list")) {
2884         audio_sample_fmt = av_get_sample_fmt(arg);
2885         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2886             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2887             return AVERROR(EINVAL);
2888         }
2889     } else {
2890         int i;
2891         char fmt_str[128];
2892         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2893             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2894         ffmpeg_exit(0);
2895     }
2896     return 0;
2897 }
2898
2899 static int opt_audio_rate(const char *opt, const char *arg)
2900 {
2901     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2902     return 0;
2903 }
2904
2905 static int opt_audio_channels(const char *opt, const char *arg)
2906 {
2907     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2908     return 0;
2909 }
2910
2911 static int opt_video_channel(const char *opt, const char *arg)
2912 {
2913     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
2914     opt_default("channel", arg);
2915     return 0;
2916 }
2917
2918 static int opt_video_standard(const char *opt, const char *arg)
2919 {
2920     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
2921     opt_default("standard", arg);
2922     return 0;
2923 }
2924
2925 static int opt_codec(int *pstream_copy, char **pcodec_name,
2926                       int codec_type, const char *arg)
2927 {
2928     av_freep(pcodec_name);
2929     if (!strcmp(arg, "copy")) {
2930         *pstream_copy = 1;
2931     } else {
2932         *pcodec_name = av_strdup(arg);
2933     }
2934     return 0;
2935 }
2936
2937 static int opt_audio_codec(const char *opt, const char *arg)
2938 {
2939     return opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2940 }
2941
2942 static int opt_video_codec(const char *opt, const char *arg)
2943 {
2944     return opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2945 }
2946
2947 static int opt_subtitle_codec(const char *opt, const char *arg)
2948 {
2949     return opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2950 }
2951
2952 static int opt_data_codec(const char *opt, const char *arg)
2953 {
2954     return opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2955 }
2956
2957 static int opt_codec_tag(const char *opt, const char *arg)
2958 {
2959     char *tail;
2960     uint32_t *codec_tag;
2961
2962     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2963                 !strcmp(opt, "vtag") ? &video_codec_tag :
2964                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2965     if (!codec_tag)
2966         return -1;
2967
2968     *codec_tag = strtol(arg, &tail, 0);
2969     if (!tail || *tail)
2970         *codec_tag = AV_RL32(arg);
2971
2972     return 0;
2973 }
2974
2975 static int opt_map(const char *opt, const char *arg)
2976 {
2977     StreamMap *m;
2978     char *p;
2979
2980     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2981     m = &stream_maps[nb_stream_maps-1];
2982
2983     m->file_index = strtol(arg, &p, 0);
2984     if (*p)
2985         p++;
2986
2987     m->stream_index = strtol(p, &p, 0);
2988     if (*p) {
2989         p++;
2990         m->sync_file_index = strtol(p, &p, 0);
2991         if (*p)
2992             p++;
2993         m->sync_stream_index = strtol(p, &p, 0);
2994     } else {
2995         m->sync_file_index = m->file_index;
2996         m->sync_stream_index = m->stream_index;
2997     }
2998     return 0;
2999 }
3000
3001 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
3002 {
3003     *endptr = arg;
3004     if (*arg == ',') {
3005         *type = *(++arg);
3006         switch (*arg) {
3007         case 'g':
3008             break;
3009         case 's':
3010         case 'c':
3011         case 'p':
3012             *index = strtol(++arg, endptr, 0);
3013             break;
3014         default:
3015             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
3016             ffmpeg_exit(1);
3017         }
3018     } else
3019         *type = 'g';
3020 }
3021
3022 static int opt_map_metadata(const char *opt, const char *arg)
3023 {
3024     MetadataMap *m, *m1;
3025     char *p;
3026
3027     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
3028                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
3029
3030     m = &meta_data_maps[nb_meta_data_maps - 1][0];
3031     m->file = strtol(arg, &p, 0);
3032     parse_meta_type(p, &m->type, &m->index, &p);
3033     if (*p)
3034         p++;
3035
3036     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
3037     m1->file = strtol(p, &p, 0);
3038     parse_meta_type(p, &m1->type, &m1->index, &p);
3039
3040     if (m->type == 'g' || m1->type == 'g')
3041         metadata_global_autocopy = 0;
3042     if (m->type == 's' || m1->type == 's')
3043         metadata_streams_autocopy = 0;
3044     if (m->type == 'c' || m1->type == 'c')
3045         metadata_chapters_autocopy = 0;
3046
3047     return 0;
3048 }
3049
3050 static int opt_map_meta_data(const char *opt, const char *arg)
3051 {
3052     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3053                     "Use -map_metadata instead.\n");
3054     return opt_map_metadata(opt, arg);
3055 }
3056
3057 static int opt_map_chapters(const char *opt, const char *arg)
3058 {
3059     ChapterMap *c;
3060     char *p;
3061
3062     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3063                               nb_chapter_maps + 1);
3064     c = &chapter_maps[nb_chapter_maps - 1];
3065     c->out_file = strtol(arg, &p, 0);
3066     if (*p)
3067         p++;
3068
3069     c->in_file = strtol(p, &p, 0);
3070     return 0;
3071 }
3072
3073 static int opt_input_ts_scale(const char *opt, const char *arg)
3074 {
3075     unsigned int stream;
3076     double scale;
3077     char *p;
3078
3079     stream = strtol(arg, &p, 0);
3080     if (*p)
3081         p++;
3082     scale= strtod(p, &p);
3083
3084     if(stream >= MAX_STREAMS)
3085         ffmpeg_exit(1);
3086
3087     ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
3088     ts_scale[stream] = scale;
3089     return 0;
3090 }
3091
3092 static int opt_recording_time(const char *opt, const char *arg)
3093 {
3094     recording_time = parse_time_or_die(opt, arg, 1);
3095     return 0;
3096 }
3097
3098 static int opt_start_time(const char *opt, const char *arg)
3099 {
3100     start_time = parse_time_or_die(opt, arg, 1);
3101     return 0;
3102 }
3103
3104 static int opt_recording_timestamp(const char *opt, const char *arg)
3105 {
3106     char buf[128];
3107     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
3108     struct tm time = *gmtime((time_t*)&recording_timestamp);
3109     strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
3110     opt_metadata("metadata", buf);
3111
3112     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
3113                                  "tag instead.\n", opt);
3114     return 0;
3115 }
3116
3117 static int opt_input_ts_offset(const char *opt, const char *arg)
3118 {
3119     input_ts_offset = parse_time_or_die(opt, arg, 1);
3120     return 0;
3121 }
3122
3123 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3124 {
3125     const char *codec_string = encoder ? "encoder" : "decoder";
3126     AVCodec *codec;
3127
3128     if(!name)
3129         return CODEC_ID_NONE;
3130     codec = encoder ?
3131         avcodec_find_encoder_by_name(name) :
3132         avcodec_find_decoder_by_name(name);
3133     if(!codec) {
3134         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3135         ffmpeg_exit(1);
3136     }
3137     if(codec->type != type) {
3138         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3139         ffmpeg_exit(1);
3140     }
3141     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3142        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3143         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3144                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3145                 codec_string, codec->name);
3146         codec = encoder ?
3147             avcodec_find_encoder(codec->id) :
3148             avcodec_find_decoder(codec->id);
3149         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3150             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3151                     codec_string, codec->name);
3152         ffmpeg_exit(1);
3153     }
3154     return codec->id;
3155 }
3156
3157 static int opt_input_file(const char *opt, const char *filename)
3158 {
3159     AVFormatContext *ic;
3160     AVInputFormat *file_iformat = NULL;
3161     int err, i, ret, rfps, rfps_base;
3162     int64_t timestamp;
3163     uint8_t buf[128];
3164
3165     if (last_asked_format) {
3166         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3167             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3168             ffmpeg_exit(1);
3169         }
3170         last_asked_format = NULL;
3171     }
3172
3173     if (!strcmp(filename, "-"))
3174         filename = "pipe:";
3175
3176     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3177                     !strcmp(filename, "/dev/stdin");
3178
3179     /* get default parameters from command line */
3180     ic = avformat_alloc_context();
3181     if (!ic) {
3182         print_error(filename, AVERROR(ENOMEM));
3183         ffmpeg_exit(1);
3184     }
3185     if (audio_sample_rate) {
3186         snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
3187         av_dict_set(&format_opts, "sample_rate", buf, 0);
3188     }
3189     if (audio_channels) {
3190         snprintf(buf, sizeof(buf), "%d", audio_channels);
3191         av_dict_set(&format_opts, "channels", buf, 0);
3192     }
3193     if (frame_rate.num) {
3194         snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
3195         av_dict_set(&format_opts, "framerate", buf, 0);
3196     }
3197     if (frame_width && frame_height) {
3198         snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
3199         av_dict_set(&format_opts, "video_size", buf, 0);
3200     }
3201     if (frame_pix_fmt != PIX_FMT_NONE)
3202         av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
3203
3204     ic->video_codec_id   =
3205         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3206                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3207     ic->audio_codec_id   =
3208         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3209                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3210     ic->subtitle_codec_id=
3211         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3212                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3213     ic->flags |= AVFMT_FLAG_NONBLOCK;
3214
3215     /* open the input file with generic libav function */
3216     err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
3217     if (err < 0) {
3218         print_error(filename, err);
3219         ffmpeg_exit(1);
3220     }
3221     assert_avoptions(format_opts);
3222
3223     if(opt_programid) {
3224         int i, j;
3225         int found=0;
3226         for(i=0; i<ic->nb_streams; i++){
3227             ic->streams[i]->discard= AVDISCARD_ALL;
3228         }
3229         for(i=0; i<ic->nb_programs; i++){
3230             AVProgram *p= ic->programs[i];
3231             if(p->id != opt_programid){
3232                 p->discard = AVDISCARD_ALL;
3233             }else{
3234                 found=1;
3235                 for(j=0; j<p->nb_stream_indexes; j++){
3236                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3237                 }
3238             }
3239         }
3240         if(!found){
3241             fprintf(stderr, "Specified program id not found\n");
3242             ffmpeg_exit(1);
3243         }
3244         opt_programid=0;
3245     }
3246
3247     if (loop_input) {
3248         av_log(NULL, AV_LOG_WARNING, "-loop_input is deprecated, use -loop 1\n");
3249         ic->loop_input = loop_input;
3250     }
3251
3252     /* Set AVCodecContext options so they will be seen by av_find_stream_info() */
3253     for (i = 0; i < ic->nb_streams; i++) {
3254         AVCodecContext *dec = ic->streams[i]->codec;
3255         switch (dec->codec_type) {
3256         case AVMEDIA_TYPE_AUDIO:
3257             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO],
3258                              AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3259                              NULL);
3260             break;
3261         case AVMEDIA_TYPE_VIDEO:
3262             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO],
3263                              AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM,
3264                              NULL);
3265             break;
3266         }
3267     }
3268
3269     /* If not enough info to get the stream parameters, we decode the
3270        first frames to get it. (used in mpeg case for example) */
3271     ret = av_find_stream_info(ic);
3272     if (ret < 0 && verbose >= 0) {
3273         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3274         av_close_input_file(ic);
3275         ffmpeg_exit(1);
3276     }
3277
3278     timestamp = start_time;
3279     /* add the stream start time */
3280     if (ic->start_time != AV_NOPTS_VALUE)
3281         timestamp += ic->start_time;
3282
3283     /* if seeking requested, we execute it */
3284     if (start_time != 0) {
3285         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3286         if (ret < 0) {
3287             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3288                     filename, (double)timestamp / AV_TIME_BASE);
3289         }
3290         /* reset seek info */
3291         start_time = 0;
3292     }
3293
3294     /* update the current parameters so that they match the one of the input stream */
3295     for(i=0;i<ic->nb_streams;i++) {
3296         AVStream *st = ic->streams[i];
3297         AVCodecContext *dec = st->codec;
3298         InputStream *ist;
3299
3300         dec->thread_count = thread_count;
3301
3302         input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
3303         ist = &input_streams[nb_input_streams - 1];
3304         ist->st = st;
3305         ist->file_index = nb_input_files;
3306         ist->discard = 1;
3307
3308         if (i < nb_ts_scale)
3309             ist->ts_scale = ts_scale[i];
3310
3311         switch (dec->codec_type) {
3312         case AVMEDIA_TYPE_AUDIO:
3313             ist->dec = avcodec_find_decoder_by_name(audio_codec_name);
3314             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3315             if(audio_disable)
3316                 st->discard= AVDISCARD_ALL;
3317             break;
3318         case AVMEDIA_TYPE_VIDEO:
3319             ist->dec = avcodec_find_decoder_by_name(video_codec_name);
3320             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, ist->dec);
3321             rfps      = ic->streams[i]->r_frame_rate.num;
3322             rfps_base = ic->streams[i]->r_frame_rate.den;
3323             if (dec->lowres) {
3324                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3325                 dec->height >>= dec->lowres;
3326                 dec->width  >>= dec->lowres;
3327             }
3328             if(me_threshold)
3329                 dec->debug |= FF_DEBUG_MV;
3330
3331             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3332
3333                 if (verbose >= 0)
3334                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3335                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3336
3337                     (float)rfps / rfps_base, rfps, rfps_base);
3338             }
3339
3340             if(video_disable)
3341                 st->discard= AVDISCARD_ALL;
3342             else if(video_discard)
3343                 st->discard= video_discard;
3344             break;
3345         case AVMEDIA_TYPE_DATA:
3346             break;
3347         case AVMEDIA_TYPE_SUBTITLE:
3348             ist->dec = avcodec_find_decoder_by_name(subtitle_codec_name);
3349             if(subtitle_disable)
3350                 st->discard = AVDISCARD_ALL;
3351             break;
3352         case AVMEDIA_TYPE_ATTACHMENT:
3353         case AVMEDIA_TYPE_UNKNOWN:
3354             break;
3355         default:
3356             abort();
3357         }
3358     }
3359
3360     /* dump the file content */
3361     if (verbose >= 0)
3362         av_dump_format(ic, nb_input_files, filename, 0);
3363
3364     input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3365     input_files[nb_input_files - 1].ctx        = ic;
3366     input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
3367     input_files[nb_input_files - 1].ts_offset  = input_ts_offset - (copy_ts ? 0 : timestamp);
3368
3369     frame_rate    = (AVRational){0, 0};
3370     frame_pix_fmt = PIX_FMT_NONE;
3371     frame_height = 0;
3372     frame_width  = 0;
3373     audio_sample_rate = 0;
3374     audio_channels    = 0;
3375     audio_sample_fmt  = AV_SAMPLE_FMT_NONE;
3376     av_freep(&ts_scale);
3377     nb_ts_scale = 0;
3378
3379     av_freep(&video_codec_name);
3380     av_freep(&audio_codec_name);
3381     av_freep(&subtitle_codec_name);
3382     uninit_opts();
3383     init_opts();
3384     return 0;
3385 }
3386
3387 static void check_inputs(int *has_video_ptr,
3388                          int *has_audio_ptr,
3389                          int *has_subtitle_ptr,
3390                          int *has_data_ptr)
3391 {
3392     int has_video, has_audio, has_subtitle, has_data, i, j;
3393     AVFormatContext *ic;
3394
3395     has_video = 0;
3396     has_audio = 0;
3397     has_subtitle = 0;
3398     has_data = 0;
3399
3400     for(j=0;j<nb_input_files;j++) {
3401         ic = input_files[j].ctx;
3402         for(i=0;i<ic->nb_streams;i++) {
3403             AVCodecContext *enc = ic->streams[i]->codec;
3404             switch(enc->codec_type) {
3405             case AVMEDIA_TYPE_AUDIO:
3406                 has_audio = 1;
3407                 break;
3408             case AVMEDIA_TYPE_VIDEO:
3409                 has_video = 1;
3410                 break;
3411             case AVMEDIA_TYPE_SUBTITLE:
3412                 has_subtitle = 1;
3413                 break;
3414             case AVMEDIA_TYPE_DATA:
3415             case AVMEDIA_TYPE_ATTACHMENT:
3416             case AVMEDIA_TYPE_UNKNOWN:
3417                 has_data = 1;
3418                 break;
3419             default:
3420                 abort();
3421             }
3422         }
3423     }
3424     *has_video_ptr = has_video;
3425     *has_audio_ptr = has_audio;
3426     *has_subtitle_ptr = has_subtitle;
3427     *has_data_ptr = has_data;
3428 }
3429
3430 static void new_video_stream(AVFormatContext *oc, int file_idx)
3431 {
3432     AVStream *st;
3433     OutputStream *ost;
3434     AVCodecContext *video_enc;
3435     enum CodecID codec_id = CODEC_ID_NONE;
3436     AVCodec *codec= NULL;
3437
3438     if(!video_stream_copy){
3439         if (video_codec_name) {
3440             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3441                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3442             codec = avcodec_find_encoder_by_name(video_codec_name);
3443         } else {
3444             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3445             codec = avcodec_find_encoder(codec_id);
3446         }
3447     }
3448
3449     ost = new_output_stream(oc, file_idx, codec);
3450     st  = ost->st;
3451     if (!video_stream_copy) {
3452         ost->frame_aspect_ratio = frame_aspect_ratio;
3453         frame_aspect_ratio = 0;
3454 #if CONFIG_AVFILTER
3455         ost->avfilter= vfilters;
3456         vfilters = NULL;
3457 #endif
3458     }
3459
3460     ost->bitstream_filters = video_bitstream_filters;
3461     video_bitstream_filters= NULL;
3462
3463     st->codec->thread_count= thread_count;
3464
3465     video_enc = st->codec;
3466
3467     if(video_codec_tag)
3468         video_enc->codec_tag= video_codec_tag;
3469
3470     if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3471         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3472         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3473     }
3474
3475     if (video_stream_copy) {
3476         st->stream_copy = 1;
3477         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3478         video_enc->sample_aspect_ratio =
3479         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3480     } else {
3481         const char *p;
3482         int i;
3483
3484         if (frame_rate.num)
3485             ost->frame_rate = frame_rate;
3486         video_enc->codec_id = codec_id;
3487         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3488
3489         video_enc->width = frame_width;
3490         video_enc->height = frame_height;
3491         video_enc->pix_fmt = frame_pix_fmt;
3492         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3493
3494         if (intra_only)
3495             video_enc->gop_size = 0;
3496         if (video_qscale || same_quality) {
3497             video_enc->flags |= CODEC_FLAG_QSCALE;
3498             video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3499         }
3500
3501         if(intra_matrix)
3502             video_enc->intra_matrix = intra_matrix;
3503         if(inter_matrix)
3504             video_enc->inter_matrix = inter_matrix;
3505
3506         p= video_rc_override_string;
3507         for(i=0; p; i++){
3508             int start, end, q;
3509             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3510             if(e!=3){
3511                 fprintf(stderr, "error parsing rc_override\n");
3512                 ffmpeg_exit(1);
3513             }
3514             video_enc->rc_override=
3515                 av_realloc(video_enc->rc_override,
3516                            sizeof(RcOverride)*(i+1));
3517             video_enc->rc_override[i].start_frame= start;
3518             video_enc->rc_override[i].end_frame  = end;
3519             if(q>0){
3520                 video_enc->rc_override[i].qscale= q;
3521                 video_enc->rc_override[i].quality_factor= 1.0;
3522             }
3523             else{
3524                 video_enc->rc_override[i].qscale= 0;
3525                 video_enc->rc_override[i].quality_factor= -q/100.0;
3526             }
3527             p= strchr(p, '/');
3528             if(p) p++;
3529         }
3530         video_enc->rc_override_count=i;
3531         if (!video_enc->rc_initial_buffer_occupancy)
3532             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3533         video_enc->me_threshold= me_threshold;
3534         video_enc->intra_dc_precision= intra_dc_precision - 8;
3535
3536         if (do_psnr)
3537             video_enc->flags|= CODEC_FLAG_PSNR;
3538
3539         /* two pass mode */
3540         if (do_pass) {
3541             if (do_pass == 1) {
3542                 video_enc->flags |= CODEC_FLAG_PASS1;
3543             } else {
3544                 video_enc->flags |= CODEC_FLAG_PASS2;
3545             }
3546         }
3547
3548         if (forced_key_frames)
3549             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3550     }
3551     if (video_language) {
3552         av_dict_set(&st->metadata, "language", video_language, 0);
3553         av_freep(&video_language);
3554     }
3555
3556     /* reset some key parameters */
3557     video_disable = 0;
3558     av_freep(&video_codec_name);
3559     av_freep(&forced_key_frames);
3560     video_stream_copy = 0;
3561     frame_pix_fmt = PIX_FMT_NONE;
3562 }
3563
3564 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3565 {
3566     AVStream *st;
3567     OutputStream *ost;
3568     AVCodec *codec= NULL;
3569     AVCodecContext *audio_enc;
3570     enum CodecID codec_id = CODEC_ID_NONE;
3571
3572     if(!audio_stream_copy){
3573         if (audio_codec_name) {
3574             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3575                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3576             codec = avcodec_find_encoder_by_name(audio_codec_name);
3577         } else {
3578             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3579             codec = avcodec_find_encoder(codec_id);
3580         }
3581     }
3582     ost = new_output_stream(oc, file_idx, codec);
3583     st  = ost->st;
3584
3585     ost->bitstream_filters = audio_bitstream_filters;
3586     audio_bitstream_filters= NULL;
3587
3588     st->codec->thread_count= thread_count;
3589
3590     audio_enc = st->codec;
3591     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3592
3593     if(audio_codec_tag)
3594         audio_enc->codec_tag= audio_codec_tag;
3595
3596     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3597         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3598         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3599     }
3600     if (audio_stream_copy) {
3601         st->stream_copy = 1;
3602     } else {
3603         audio_enc->codec_id = codec_id;
3604         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3605
3606         if (audio_qscale > QSCALE_NONE) {
3607             audio_enc->flags |= CODEC_FLAG_QSCALE;
3608             audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3609         }
3610         if (audio_channels)
3611             audio_enc->channels = audio_channels;
3612         if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3613             audio_enc->sample_fmt = audio_sample_fmt;
3614         if (audio_sample_rate)
3615             audio_enc->sample_rate = audio_sample_rate;
3616     }
3617     if (audio_language) {
3618         av_dict_set(&st->metadata, "language", audio_language, 0);
3619         av_freep(&audio_language);
3620     }
3621
3622     /* reset some key parameters */
3623     audio_disable = 0;
3624     av_freep(&audio_codec_name);
3625     audio_stream_copy = 0;
3626 }
3627
3628 static void new_data_stream(AVFormatContext *oc, int file_idx)
3629 {
3630     AVStream *st;
3631     OutputStream *ost;
3632     AVCodecContext *data_enc;
3633
3634     ost = new_output_stream(oc, file_idx, NULL);
3635     st  = ost->st;
3636     data_enc = st->codec;
3637     if (!data_stream_copy) {
3638         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3639         ffmpeg_exit(1);
3640     }
3641
3642     data_enc->codec_type = AVMEDIA_TYPE_DATA;