ffmpeg: remove unused fields AVOutputStream.original_width/height
[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 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavutil/audioconvert.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/samplefmt.h"
42 #include "libavutil/colorspace.h"
43 #include "libavutil/fifo.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/libm.h"
48 #include "libavformat/os_support.h"
49
50 #if CONFIG_AVFILTER
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/avfiltergraph.h"
53 # include "libavfilter/vsrc_buffer.h"
54 #endif
55
56 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/time.h>
59 #include <sys/resource.h>
60 #elif HAVE_GETPROCESSTIMES
61 #include <windows.h>
62 #endif
63 #if HAVE_GETPROCESSMEMORYINFO
64 #include <windows.h>
65 #include <psapi.h>
66 #endif
67
68 #if HAVE_SYS_SELECT_H
69 #include <sys/select.h>
70 #endif
71
72 #if HAVE_KBHIT
73 #include <conio.h>
74 #endif
75 #include <time.h>
76
77 #include "cmdutils.h"
78
79 #include "libavutil/avassert.h"
80
81 const char program_name[] = "ffmpeg";
82 const int program_birth_year = 2000;
83
84 /* select an input stream for an output stream */
85 typedef struct AVStreamMap {
86     int file_index;
87     int stream_index;
88     int sync_file_index;
89     int sync_stream_index;
90 } AVStreamMap;
91
92 /**
93  * select an input file for an output file
94  */
95 typedef struct AVMetaDataMap {
96     int  file;      //< file index
97     char type;      //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
98     int  index;     //< stream/chapter/program number
99 } AVMetaDataMap;
100
101 typedef struct AVChapterMap {
102     int in_file;
103     int out_file;
104 } AVChapterMap;
105
106 static const OptionDef options[];
107
108 #define MAX_FILES 100
109 #define MAX_STREAMS 1024    /* arbitrary sanity check value */
110
111 #define FFM_PACKET_SIZE 4096 //XXX a duplicate of the line in ffm.h
112
113 static const char *last_asked_format = NULL;
114 static AVFormatContext *input_files[MAX_FILES];
115 static int64_t input_files_ts_offset[MAX_FILES];
116 static double *input_files_ts_scale[MAX_FILES] = {NULL};
117 static AVCodec **input_codecs = NULL;
118 static int nb_input_files = 0;
119 static int nb_input_codecs = 0;
120 static int nb_input_files_ts_scale[MAX_FILES] = {0};
121
122 static AVFormatContext *output_files[MAX_FILES];
123 static AVCodec **output_codecs = NULL;
124 static int nb_output_files = 0;
125 static int nb_output_codecs = 0;
126
127 static AVStreamMap *stream_maps = NULL;
128 static int nb_stream_maps;
129
130 /* first item specifies output metadata, second is input */
131 static AVMetaDataMap (*meta_data_maps)[2] = NULL;
132 static int nb_meta_data_maps;
133 static int metadata_global_autocopy   = 1;
134 static int metadata_streams_autocopy  = 1;
135 static int metadata_chapters_autocopy = 1;
136
137 static AVChapterMap *chapter_maps = NULL;
138 static int nb_chapter_maps;
139
140 /* indexed by output file stream index */
141 static int *streamid_map = NULL;
142 static int nb_streamid_map = 0;
143
144 static int frame_width  = 0;
145 static int frame_height = 0;
146 static float frame_aspect_ratio = 0;
147 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
148 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
149 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
150 static AVRational frame_rate;
151 static float video_qscale = 0;
152 static uint16_t *intra_matrix = NULL;
153 static uint16_t *inter_matrix = NULL;
154 static const char *video_rc_override_string=NULL;
155 static int video_disable = 0;
156 static int video_discard = 0;
157 static char *video_codec_name = NULL;
158 static unsigned int video_codec_tag = 0;
159 static char *video_language = NULL;
160 static int same_quality = 0;
161 static int do_deinterlace = 0;
162 static int top_field_first = -1;
163 static int me_threshold = 0;
164 static int intra_dc_precision = 8;
165 static int loop_input = 0;
166 static int loop_output = AVFMT_NOOUTPUTLOOP;
167 static int qp_hist = 0;
168 #if CONFIG_AVFILTER
169 static char *vfilters = NULL;
170 static AVFilterGraph *graph = NULL;
171 #endif
172
173 static int intra_only = 0;
174 static int audio_sample_rate = 44100;
175 static int64_t channel_layout = 0;
176 #define QSCALE_NONE -99999
177 static float audio_qscale = QSCALE_NONE;
178 static int audio_disable = 0;
179 static int audio_channels = 1;
180 static char  *audio_codec_name = NULL;
181 static unsigned int audio_codec_tag = 0;
182 static char *audio_language = NULL;
183
184 static int subtitle_disable = 0;
185 static char *subtitle_codec_name = NULL;
186 static char *subtitle_language = NULL;
187 static unsigned int subtitle_codec_tag = 0;
188
189 static int data_disable = 0;
190 static char *data_codec_name = NULL;
191 static unsigned int data_codec_tag = 0;
192
193 static float mux_preload= 0.5;
194 static float mux_max_delay= 0.7;
195
196 static int64_t recording_time = INT64_MAX;
197 static int64_t start_time = 0;
198 static int64_t recording_timestamp = 0;
199 static int64_t input_ts_offset = 0;
200 static int file_overwrite = 0;
201 static AVMetadata *metadata;
202 static int do_benchmark = 0;
203 static int do_hex_dump = 0;
204 static int do_pkt_dump = 0;
205 static int do_psnr = 0;
206 static int do_pass = 0;
207 static char *pass_logfilename_prefix = NULL;
208 static int audio_stream_copy = 0;
209 static int video_stream_copy = 0;
210 static int subtitle_stream_copy = 0;
211 static int data_stream_copy = 0;
212 static int video_sync_method= -1;
213 static int audio_sync_method= 0;
214 static float audio_drift_threshold= 0.1;
215 static int copy_ts= 0;
216 static int copy_tb;
217 static int opt_shortest = 0;
218 static int video_global_header = 0;
219 static char *vstats_filename;
220 static FILE *vstats_file;
221 static int opt_programid = 0;
222 static int copy_initial_nonkeyframes = 0;
223
224 static int rate_emu = 0;
225
226 static int  video_channel = 0;
227 static char *video_standard;
228
229 static int audio_volume = 256;
230
231 static int exit_on_error = 0;
232 static int using_stdin = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int64_t video_size = 0;
237 static int64_t audio_size = 0;
238 static int64_t extra_size = 0;
239 static int nb_frames_dup = 0;
240 static int nb_frames_drop = 0;
241 static int input_sync;
242 static uint64_t limit_filesize = 0;
243 static int force_fps = 0;
244 static char *forced_key_frames = NULL;
245
246 static float dts_delta_threshold = 10;
247
248 static int64_t timer_start;
249
250 static uint8_t *audio_buf;
251 static uint8_t *audio_out;
252 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
253
254 static short *samples;
255
256 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
257 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
258 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
259
260 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
261
262 struct AVInputStream;
263
264 typedef struct AVOutputStream {
265     int file_index;          /* file index */
266     int index;               /* stream index in the output file */
267     int source_index;        /* AVInputStream index */
268     AVStream *st;            /* stream in the output file */
269     int encoding_needed;     /* true if encoding needed for this stream */
270     int frame_number;
271     /* input pts and corresponding output pts
272        for A/V sync */
273     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
274     struct AVInputStream *sync_ist; /* input stream to sync against */
275     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
276     AVBitStreamFilterContext *bitstream_filters;
277     /* video only */
278     int video_resample;
279     AVFrame pict_tmp;      /* temporary image for resampling */
280     struct SwsContext *img_resample_ctx; /* for image resampling */
281     int resample_height;
282     int resample_width;
283     int resample_pix_fmt;
284
285     /* forced key frames */
286     int64_t *forced_kf_pts;
287     int forced_kf_count;
288     int forced_kf_index;
289
290     /* audio only */
291     int audio_resample;
292     ReSampleContext *resample; /* for audio resampling */
293     int resample_sample_fmt;
294     int resample_channels;
295     int resample_sample_rate;
296     int reformat_pair;
297     AVAudioConvert *reformat_ctx;
298     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
299     FILE *logfile;
300
301    int sws_flags;
302 } AVOutputStream;
303
304 static AVOutputStream **output_streams_for_file[MAX_FILES] = { NULL };
305 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
306
307 typedef struct AVInputStream {
308     int file_index;
309     int index;
310     AVStream *st;
311     int discard;             /* true if stream data should be discarded */
312     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
313     int64_t sample_index;      /* current sample */
314
315     int64_t       start;     /* time when read started */
316     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
317                                 is not defined */
318     int64_t       pts;       /* current pts */
319     PtsCorrectionContext pts_ctx;
320     int is_start;            /* is 1 at the start and after a discontinuity */
321     int showed_multi_packet_warning;
322     int is_past_recording_time;
323 #if CONFIG_AVFILTER
324     AVFilterContext *output_video_filter;
325     AVFilterContext *input_video_filter;
326     AVFrame *filter_frame;
327     int has_filter_frame;
328     AVFilterBufferRef *picref;
329 #endif
330 } AVInputStream;
331
332 typedef struct AVInputFile {
333     int eof_reached;      /* true if eof reached */
334     int ist_index;        /* index of first stream in ist_table */
335     int buffer_size;      /* current total buffer size */
336     int nb_streams;       /* nb streams we are aware of */
337 } AVInputFile;
338
339 #if CONFIG_AVFILTER
340
341 static int configure_video_filters(AVInputStream *ist, AVOutputStream *ost)
342 {
343     AVFilterContext *last_filter, *filter;
344     /** filter graph containing all filters including input & output */
345     AVCodecContext *codec = ost->st->codec;
346     AVCodecContext *icodec = ist->st->codec;
347     FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
348     AVRational sample_aspect_ratio;
349     char args[255];
350     int ret;
351
352     graph = avfilter_graph_alloc();
353
354     if (ist->st->sample_aspect_ratio.num){
355         sample_aspect_ratio = ist->st->sample_aspect_ratio;
356     }else
357         sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
358
359     snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
360              ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
361              sample_aspect_ratio.num, sample_aspect_ratio.den);
362
363     ret = avfilter_graph_create_filter(&ist->input_video_filter, avfilter_get_by_name("buffer"),
364                                        "src", args, NULL, graph);
365     if (ret < 0)
366         return ret;
367     ret = avfilter_graph_create_filter(&ist->output_video_filter, &ffsink,
368                                        "out", NULL, &ffsink_ctx, graph);
369     if (ret < 0)
370         return ret;
371     last_filter = ist->input_video_filter;
372
373     if (codec->width  != icodec->width || codec->height != icodec->height) {
374         snprintf(args, 255, "%d:%d:flags=0x%X",
375                  codec->width,
376                  codec->height,
377                  ost->sws_flags);
378         if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
379                                                 NULL, args, NULL, graph)) < 0)
380             return ret;
381         if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
382             return ret;
383         last_filter = filter;
384     }
385
386     snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
387     graph->scale_sws_opts = av_strdup(args);
388
389     if (vfilters) {
390         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
391         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
392
393         outputs->name    = av_strdup("in");
394         outputs->filter_ctx = last_filter;
395         outputs->pad_idx = 0;
396         outputs->next    = NULL;
397
398         inputs->name    = av_strdup("out");
399         inputs->filter_ctx = ist->output_video_filter;
400         inputs->pad_idx = 0;
401         inputs->next    = NULL;
402
403         if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
404             return ret;
405         av_freep(&vfilters);
406     } else {
407         if ((ret = avfilter_link(last_filter, 0, ist->output_video_filter, 0)) < 0)
408             return ret;
409     }
410
411     if ((ret = avfilter_graph_config(graph, NULL)) < 0)
412         return ret;
413
414     codec->width  = ist->output_video_filter->inputs[0]->w;
415     codec->height = ist->output_video_filter->inputs[0]->h;
416     codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
417         ist->output_video_filter->inputs[0]->sample_aspect_ratio;
418
419     return 0;
420 }
421 #endif /* CONFIG_AVFILTER */
422
423 static void term_exit(void)
424 {
425     av_log(NULL, AV_LOG_QUIET, "");
426 }
427
428 static volatile int received_sigterm = 0;
429
430 static void
431 sigterm_handler(int sig)
432 {
433     received_sigterm = sig;
434     term_exit();
435 }
436
437 static void term_init(void)
438 {
439     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
440     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
441 #ifdef SIGXCPU
442     signal(SIGXCPU, sigterm_handler);
443 #endif
444 }
445
446 /* read a key without blocking */
447 static int read_key(void)
448 {
449 #if HAVE_KBHIT
450     if(kbhit())
451         return(getch());
452 #endif
453     return -1;
454 }
455
456 static int decode_interrupt_cb(void)
457 {
458     return q_pressed || (q_pressed = read_key() == 'q');
459 }
460
461 static int ffmpeg_exit(int ret)
462 {
463     int i;
464
465     /* close files */
466     for(i=0;i<nb_output_files;i++) {
467         AVFormatContext *s = output_files[i];
468         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
469             avio_close(s->pb);
470         avformat_free_context(s);
471         av_free(output_streams_for_file[i]);
472     }
473     for(i=0;i<nb_input_files;i++) {
474         av_close_input_file(input_files[i]);
475         av_free(input_files_ts_scale[i]);
476     }
477
478     av_free(intra_matrix);
479     av_free(inter_matrix);
480
481     if (vstats_file)
482         fclose(vstats_file);
483     av_free(vstats_filename);
484
485     av_free(streamid_map);
486     av_free(input_codecs);
487     av_free(output_codecs);
488     av_free(stream_maps);
489     av_free(meta_data_maps);
490
491     av_free(video_codec_name);
492     av_free(audio_codec_name);
493     av_free(subtitle_codec_name);
494     av_free(data_codec_name);
495
496     av_free(video_standard);
497
498     uninit_opts();
499     av_free(audio_buf);
500     av_free(audio_out);
501     allocated_audio_buf_size= allocated_audio_out_size= 0;
502     av_free(samples);
503
504 #if CONFIG_AVFILTER
505     avfilter_uninit();
506 #endif
507
508     if (received_sigterm) {
509         fprintf(stderr,
510             "Received signal %d: terminating.\n",
511             (int) received_sigterm);
512         exit (255);
513     }
514
515     exit(ret); /* not all OS-es handle main() return value */
516     return ret;
517 }
518
519 /* similar to ff_dynarray_add() and av_fast_realloc() */
520 static void *grow_array(void *array, int elem_size, int *size, int new_size)
521 {
522     if (new_size >= INT_MAX / elem_size) {
523         fprintf(stderr, "Array too big.\n");
524         ffmpeg_exit(1);
525     }
526     if (*size < new_size) {
527         uint8_t *tmp = av_realloc(array, new_size*elem_size);
528         if (!tmp) {
529             fprintf(stderr, "Could not alloc buffer.\n");
530             ffmpeg_exit(1);
531         }
532         memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
533         *size = new_size;
534         return tmp;
535     }
536     return array;
537 }
538
539 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
540 {
541     if(codec && codec->sample_fmts){
542         const enum AVSampleFormat *p= codec->sample_fmts;
543         for(; *p!=-1; p++){
544             if(*p == st->codec->sample_fmt)
545                 break;
546         }
547         if (*p == -1) {
548             av_log(NULL, AV_LOG_WARNING,
549                    "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
550                    av_get_sample_fmt_name(st->codec->sample_fmt),
551                    codec->name,
552                    av_get_sample_fmt_name(codec->sample_fmts[0]));
553             st->codec->sample_fmt = codec->sample_fmts[0];
554         }
555     }
556 }
557
558 static void choose_sample_rate(AVStream *st, AVCodec *codec)
559 {
560     if(codec && codec->supported_samplerates){
561         const int *p= codec->supported_samplerates;
562         int best=0;
563         int best_dist=INT_MAX;
564         for(; *p; p++){
565             int dist= abs(st->codec->sample_rate - *p);
566             if(dist < best_dist){
567                 best_dist= dist;
568                 best= *p;
569             }
570         }
571         if(best_dist){
572             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
573         }
574         st->codec->sample_rate= best;
575     }
576 }
577
578 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
579 {
580     if(codec && codec->pix_fmts){
581         const enum PixelFormat *p= codec->pix_fmts;
582         if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
583             if(st->codec->codec_id==CODEC_ID_MJPEG){
584                 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
585             }else if(st->codec->codec_id==CODEC_ID_LJPEG){
586                 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};
587             }
588         }
589         for(; *p!=-1; p++){
590             if(*p == st->codec->pix_fmt)
591                 break;
592         }
593         if(*p == -1)
594             st->codec->pix_fmt = codec->pix_fmts[0];
595     }
596 }
597
598 static AVOutputStream *new_output_stream(AVFormatContext *oc, int file_idx)
599 {
600     int idx = oc->nb_streams - 1;
601     AVOutputStream *ost;
602
603     output_streams_for_file[file_idx] =
604         grow_array(output_streams_for_file[file_idx],
605                    sizeof(*output_streams_for_file[file_idx]),
606                    &nb_output_streams_for_file[file_idx],
607                    oc->nb_streams);
608     ost = output_streams_for_file[file_idx][idx] =
609         av_mallocz(sizeof(AVOutputStream));
610     if (!ost) {
611         fprintf(stderr, "Could not alloc output stream\n");
612         ffmpeg_exit(1);
613     }
614     ost->file_index = file_idx;
615     ost->index = idx;
616
617     ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
618     return ost;
619 }
620
621 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
622 {
623     int i, err;
624     AVFormatContext *ic;
625     int nopts = 0;
626
627     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
628     if (err < 0)
629         return err;
630     /* copy stream format */
631     s->nb_streams = 0;
632     for(i=0;i<ic->nb_streams;i++) {
633         AVStream *st;
634         AVCodec *codec;
635
636         s->nb_streams++;
637
638         // FIXME: a more elegant solution is needed
639         st = av_mallocz(sizeof(AVStream));
640         memcpy(st, ic->streams[i], sizeof(AVStream));
641         st->codec = avcodec_alloc_context();
642         if (!st->codec) {
643             print_error(filename, AVERROR(ENOMEM));
644             ffmpeg_exit(1);
645         }
646         avcodec_copy_context(st->codec, ic->streams[i]->codec);
647         s->streams[i] = st;
648
649         codec = avcodec_find_encoder(st->codec->codec_id);
650         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
651             if (audio_stream_copy) {
652                 st->stream_copy = 1;
653             } else
654                 choose_sample_fmt(st, codec);
655         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
656             if (video_stream_copy) {
657                 st->stream_copy = 1;
658             } else
659                 choose_pixel_fmt(st, codec);
660         }
661
662         if(st->codec->flags & CODEC_FLAG_BITEXACT)
663             nopts = 1;
664
665         new_output_stream(s, nb_output_files);
666     }
667
668     if (!nopts)
669         s->timestamp = av_gettime();
670
671     av_close_input_file(ic);
672     return 0;
673 }
674
675 static double
676 get_sync_ipts(const AVOutputStream *ost)
677 {
678     const AVInputStream *ist = ost->sync_ist;
679     return (double)(ist->pts - start_time)/AV_TIME_BASE;
680 }
681
682 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
683     int ret;
684
685     while(bsfc){
686         AVPacket new_pkt= *pkt;
687         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
688                                           &new_pkt.data, &new_pkt.size,
689                                           pkt->data, pkt->size,
690                                           pkt->flags & AV_PKT_FLAG_KEY);
691         if(a>0){
692             av_free_packet(pkt);
693             new_pkt.destruct= av_destruct_packet;
694         } else if(a<0){
695             fprintf(stderr, "%s failed for stream %d, codec %s",
696                     bsfc->filter->name, pkt->stream_index,
697                     avctx->codec ? avctx->codec->name : "copy");
698             print_error("", a);
699             if (exit_on_error)
700                 ffmpeg_exit(1);
701         }
702         *pkt= new_pkt;
703
704         bsfc= bsfc->next;
705     }
706
707     ret= av_interleaved_write_frame(s, pkt);
708     if(ret < 0){
709         print_error("av_interleaved_write_frame()", ret);
710         ffmpeg_exit(1);
711     }
712 }
713
714 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
715
716 static void do_audio_out(AVFormatContext *s,
717                          AVOutputStream *ost,
718                          AVInputStream *ist,
719                          unsigned char *buf, int size)
720 {
721     uint8_t *buftmp;
722     int64_t audio_out_size, audio_buf_size;
723     int64_t allocated_for_size= size;
724
725     int size_out, frame_bytes, ret, resample_changed;
726     AVCodecContext *enc= ost->st->codec;
727     AVCodecContext *dec= ist->st->codec;
728     int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
729     int isize= av_get_bits_per_sample_fmt(dec->sample_fmt)/8;
730     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
731
732 need_realloc:
733     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
734     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
735     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
736     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
737     audio_buf_size*= osize*enc->channels;
738
739     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
740     if(coded_bps > 8*osize)
741         audio_out_size= audio_out_size * coded_bps / (8*osize);
742     audio_out_size += FF_MIN_BUFFER_SIZE;
743
744     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
745         fprintf(stderr, "Buffer sizes too large\n");
746         ffmpeg_exit(1);
747     }
748
749     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
750     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
751     if (!audio_buf || !audio_out){
752         fprintf(stderr, "Out of memory in do_audio_out\n");
753         ffmpeg_exit(1);
754     }
755
756     if (enc->channels != dec->channels)
757         ost->audio_resample = 1;
758
759     resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
760                        ost->resample_channels    != dec->channels   ||
761                        ost->resample_sample_rate != dec->sample_rate;
762
763     if ((ost->audio_resample && !ost->resample) || resample_changed) {
764         if (resample_changed) {
765             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",
766                    ist->file_index, ist->index,
767                    ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
768                    dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
769             ost->resample_sample_fmt  = dec->sample_fmt;
770             ost->resample_channels    = dec->channels;
771             ost->resample_sample_rate = dec->sample_rate;
772             if (ost->resample)
773                 audio_resample_close(ost->resample);
774         }
775         /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
776         if (audio_sync_method <= 1 &&
777             ost->resample_sample_fmt  == enc->sample_fmt &&
778             ost->resample_channels    == enc->channels   &&
779             ost->resample_sample_rate == enc->sample_rate) {
780             ost->resample = NULL;
781             ost->audio_resample = 0;
782         } else {
783             if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
784                 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
785             ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
786                                                    enc->sample_rate, dec->sample_rate,
787                                                    enc->sample_fmt,  dec->sample_fmt,
788                                                    16, 10, 0, 0.8);
789             if (!ost->resample) {
790                 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
791                         dec->channels, dec->sample_rate,
792                         enc->channels, enc->sample_rate);
793                 ffmpeg_exit(1);
794             }
795         }
796     }
797
798 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
799     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
800         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
801         if (ost->reformat_ctx)
802             av_audio_convert_free(ost->reformat_ctx);
803         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
804                                                    dec->sample_fmt, 1, NULL, 0);
805         if (!ost->reformat_ctx) {
806             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
807                 av_get_sample_fmt_name(dec->sample_fmt),
808                 av_get_sample_fmt_name(enc->sample_fmt));
809             ffmpeg_exit(1);
810         }
811         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
812     }
813
814     if(audio_sync_method){
815         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
816                 - av_fifo_size(ost->fifo)/(enc->channels * 2);
817         double idelta= delta*dec->sample_rate / enc->sample_rate;
818         int byte_delta= ((int)idelta)*2*dec->channels;
819
820         //FIXME resample delay
821         if(fabs(delta) > 50){
822             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
823                 if(byte_delta < 0){
824                     byte_delta= FFMAX(byte_delta, -size);
825                     size += byte_delta;
826                     buf  -= byte_delta;
827                     if(verbose > 2)
828                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
829                     if(!size)
830                         return;
831                     ist->is_start=0;
832                 }else{
833                     static uint8_t *input_tmp= NULL;
834                     input_tmp= av_realloc(input_tmp, byte_delta + size);
835
836                     if(byte_delta > allocated_for_size - size){
837                         allocated_for_size= byte_delta + (int64_t)size;
838                         goto need_realloc;
839                     }
840                     ist->is_start=0;
841
842                     memset(input_tmp, 0, byte_delta);
843                     memcpy(input_tmp + byte_delta, buf, size);
844                     buf= input_tmp;
845                     size += byte_delta;
846                     if(verbose > 2)
847                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
848                 }
849             }else if(audio_sync_method>1){
850                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
851                 av_assert0(ost->audio_resample);
852                 if(verbose > 2)
853                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
854 //                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));
855                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
856             }
857         }
858     }else
859         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
860                         - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
861
862     if (ost->audio_resample) {
863         buftmp = audio_buf;
864         size_out = audio_resample(ost->resample,
865                                   (short *)buftmp, (short *)buf,
866                                   size / (dec->channels * isize));
867         size_out = size_out * enc->channels * osize;
868     } else {
869         buftmp = buf;
870         size_out = size;
871     }
872
873     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
874         const void *ibuf[6]= {buftmp};
875         void *obuf[6]= {audio_buf};
876         int istride[6]= {isize};
877         int ostride[6]= {osize};
878         int len= size_out/istride[0];
879         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
880             printf("av_audio_convert() failed\n");
881             if (exit_on_error)
882                 ffmpeg_exit(1);
883             return;
884         }
885         buftmp = audio_buf;
886         size_out = len*osize;
887     }
888
889     /* now encode as many frames as possible */
890     if (enc->frame_size > 1) {
891         /* output resampled raw samples */
892         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
893             fprintf(stderr, "av_fifo_realloc2() failed\n");
894             ffmpeg_exit(1);
895         }
896         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
897
898         frame_bytes = enc->frame_size * osize * enc->channels;
899
900         while (av_fifo_size(ost->fifo) >= frame_bytes) {
901             AVPacket pkt;
902             av_init_packet(&pkt);
903
904             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
905
906             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
907
908             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
909                                        (short *)audio_buf);
910             if (ret < 0) {
911                 fprintf(stderr, "Audio encoding failed\n");
912                 ffmpeg_exit(1);
913             }
914             audio_size += ret;
915             pkt.stream_index= ost->index;
916             pkt.data= audio_out;
917             pkt.size= ret;
918             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
919                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
920             pkt.flags |= AV_PKT_FLAG_KEY;
921             write_frame(s, &pkt, enc, ost->bitstream_filters);
922
923             ost->sync_opts += enc->frame_size;
924         }
925     } else {
926         AVPacket pkt;
927         av_init_packet(&pkt);
928
929         ost->sync_opts += size_out / (osize * enc->channels);
930
931         /* output a pcm frame */
932         /* determine the size of the coded buffer */
933         size_out /= osize;
934         if (coded_bps)
935             size_out = size_out*coded_bps/8;
936
937         if(size_out > audio_out_size){
938             fprintf(stderr, "Internal error, buffer size too small\n");
939             ffmpeg_exit(1);
940         }
941
942         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
943         ret = avcodec_encode_audio(enc, audio_out, size_out,
944                                    (short *)buftmp);
945         if (ret < 0) {
946             fprintf(stderr, "Audio encoding failed\n");
947             ffmpeg_exit(1);
948         }
949         audio_size += ret;
950         pkt.stream_index= ost->index;
951         pkt.data= audio_out;
952         pkt.size= ret;
953         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
954             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
955         pkt.flags |= AV_PKT_FLAG_KEY;
956         write_frame(s, &pkt, enc, ost->bitstream_filters);
957     }
958 }
959
960 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
961 {
962     AVCodecContext *dec;
963     AVPicture *picture2;
964     AVPicture picture_tmp;
965     uint8_t *buf = 0;
966
967     dec = ist->st->codec;
968
969     /* deinterlace : must be done before any resize */
970     if (do_deinterlace) {
971         int size;
972
973         /* create temporary picture */
974         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
975         buf = av_malloc(size);
976         if (!buf)
977             return;
978
979         picture2 = &picture_tmp;
980         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
981
982         if(avpicture_deinterlace(picture2, picture,
983                                  dec->pix_fmt, dec->width, dec->height) < 0) {
984             /* if error, do not deinterlace */
985             fprintf(stderr, "Deinterlacing failed\n");
986             av_free(buf);
987             buf = NULL;
988             picture2 = picture;
989         }
990     } else {
991         picture2 = picture;
992     }
993
994     if (picture != picture2)
995         *picture = *picture2;
996     *bufp = buf;
997 }
998
999 /* we begin to correct av delay at this threshold */
1000 #define AV_DELAY_MAX 0.100
1001
1002 static void do_subtitle_out(AVFormatContext *s,
1003                             AVOutputStream *ost,
1004                             AVInputStream *ist,
1005                             AVSubtitle *sub,
1006                             int64_t pts)
1007 {
1008     static uint8_t *subtitle_out = NULL;
1009     int subtitle_out_max_size = 1024 * 1024;
1010     int subtitle_out_size, nb, i;
1011     AVCodecContext *enc;
1012     AVPacket pkt;
1013
1014     if (pts == AV_NOPTS_VALUE) {
1015         fprintf(stderr, "Subtitle packets must have a pts\n");
1016         if (exit_on_error)
1017             ffmpeg_exit(1);
1018         return;
1019     }
1020
1021     enc = ost->st->codec;
1022
1023     if (!subtitle_out) {
1024         subtitle_out = av_malloc(subtitle_out_max_size);
1025     }
1026
1027     /* Note: DVB subtitle need one packet to draw them and one other
1028        packet to clear them */
1029     /* XXX: signal it in the codec context ? */
1030     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1031         nb = 2;
1032     else
1033         nb = 1;
1034
1035     for(i = 0; i < nb; i++) {
1036         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1037         // start_display_time is required to be 0
1038         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1039         sub->end_display_time -= sub->start_display_time;
1040         sub->start_display_time = 0;
1041         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1042                                                     subtitle_out_max_size, sub);
1043         if (subtitle_out_size < 0) {
1044             fprintf(stderr, "Subtitle encoding failed\n");
1045             ffmpeg_exit(1);
1046         }
1047
1048         av_init_packet(&pkt);
1049         pkt.stream_index = ost->index;
1050         pkt.data = subtitle_out;
1051         pkt.size = subtitle_out_size;
1052         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1053         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1054             /* XXX: the pts correction is handled here. Maybe handling
1055                it in the codec would be better */
1056             if (i == 0)
1057                 pkt.pts += 90 * sub->start_display_time;
1058             else
1059                 pkt.pts += 90 * sub->end_display_time;
1060         }
1061         write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1062     }
1063 }
1064
1065 static int bit_buffer_size= 1024*256;
1066 static uint8_t *bit_buffer= NULL;
1067
1068 static void do_video_out(AVFormatContext *s,
1069                          AVOutputStream *ost,
1070                          AVInputStream *ist,
1071                          AVFrame *in_picture,
1072                          int *frame_size)
1073 {
1074     int nb_frames, i, ret;
1075     AVFrame *final_picture, *formatted_picture, *resampling_dst;
1076     AVCodecContext *enc, *dec;
1077     double sync_ipts;
1078
1079     enc = ost->st->codec;
1080     dec = ist->st->codec;
1081
1082     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1083
1084     /* by default, we output a single frame */
1085     nb_frames = 1;
1086
1087     *frame_size = 0;
1088
1089     if(video_sync_method){
1090         double vdelta = sync_ipts - ost->sync_opts;
1091         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1092         if (vdelta < -1.1)
1093             nb_frames = 0;
1094         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1095             if(vdelta<=-0.6){
1096                 nb_frames=0;
1097             }else if(vdelta>0.6)
1098                 ost->sync_opts= lrintf(sync_ipts);
1099         }else if (vdelta > 1.1)
1100             nb_frames = lrintf(vdelta);
1101 //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);
1102         if (nb_frames == 0){
1103             ++nb_frames_drop;
1104             if (verbose>2)
1105                 fprintf(stderr, "*** drop!\n");
1106         }else if (nb_frames > 1) {
1107             nb_frames_dup += nb_frames - 1;
1108             if (verbose>2)
1109                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1110         }
1111     }else
1112         ost->sync_opts= lrintf(sync_ipts);
1113
1114     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1115     if (nb_frames <= 0)
1116         return;
1117
1118     formatted_picture = in_picture;
1119     final_picture = formatted_picture;
1120     resampling_dst = &ost->pict_tmp;
1121
1122     if (   ost->resample_height != ist->st->codec->height
1123         || ost->resample_width  != ist->st->codec->width
1124         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1125
1126         fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width,     ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1127         if(!ost->video_resample)
1128             ffmpeg_exit(1);
1129     }
1130
1131 #if !CONFIG_AVFILTER
1132     if (ost->video_resample) {
1133         final_picture = &ost->pict_tmp;
1134         if(  ost->resample_height != ist->st->codec->height
1135           || ost->resample_width  != ist->st->codec->width
1136           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1137
1138             /* initialize a new scaler context */
1139             sws_freeContext(ost->img_resample_ctx);
1140             ost->img_resample_ctx = sws_getContext(
1141                 ist->st->codec->width,
1142                 ist->st->codec->height,
1143                 ist->st->codec->pix_fmt,
1144                 ost->st->codec->width,
1145                 ost->st->codec->height,
1146                 ost->st->codec->pix_fmt,
1147                 ost->sws_flags, NULL, NULL, NULL);
1148             if (ost->img_resample_ctx == NULL) {
1149                 fprintf(stderr, "Cannot get resampling context\n");
1150                 ffmpeg_exit(1);
1151             }
1152         }
1153         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1154               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1155     }
1156 #endif
1157
1158     /* duplicates frame if needed */
1159     for(i=0;i<nb_frames;i++) {
1160         AVPacket pkt;
1161         av_init_packet(&pkt);
1162         pkt.stream_index= ost->index;
1163
1164         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1165             /* raw pictures are written as AVPicture structure to
1166                avoid any copies. We support temorarily the older
1167                method. */
1168             AVFrame* old_frame = enc->coded_frame;
1169             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1170             pkt.data= (uint8_t *)final_picture;
1171             pkt.size=  sizeof(AVPicture);
1172             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1173             pkt.flags |= AV_PKT_FLAG_KEY;
1174
1175             write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1176             enc->coded_frame = old_frame;
1177         } else {
1178             AVFrame big_picture;
1179
1180             big_picture= *final_picture;
1181             /* better than nothing: use input picture interlaced
1182                settings */
1183             big_picture.interlaced_frame = in_picture->interlaced_frame;
1184             if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1185                 if(top_field_first == -1)
1186                     big_picture.top_field_first = in_picture->top_field_first;
1187                 else
1188                     big_picture.top_field_first = top_field_first;
1189             }
1190
1191             /* handles sameq here. This is not correct because it may
1192                not be a global option */
1193             big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1194             if(!me_threshold)
1195                 big_picture.pict_type = 0;
1196 //            big_picture.pts = AV_NOPTS_VALUE;
1197             big_picture.pts= ost->sync_opts;
1198 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1199 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1200             if (ost->forced_kf_index < ost->forced_kf_count &&
1201                 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1202                 big_picture.pict_type = AV_PICTURE_TYPE_I;
1203                 ost->forced_kf_index++;
1204             }
1205             ret = avcodec_encode_video(enc,
1206                                        bit_buffer, bit_buffer_size,
1207                                        &big_picture);
1208             if (ret < 0) {
1209                 fprintf(stderr, "Video encoding failed\n");
1210                 ffmpeg_exit(1);
1211             }
1212
1213             if(ret>0){
1214                 pkt.data= bit_buffer;
1215                 pkt.size= ret;
1216                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1217                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1218 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1219    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1220    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1221
1222                 if(enc->coded_frame->key_frame)
1223                     pkt.flags |= AV_PKT_FLAG_KEY;
1224                 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1225                 *frame_size = ret;
1226                 video_size += ret;
1227                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1228                 //        enc->frame_number-1, ret, enc->pict_type);
1229                 /* if two pass, output log */
1230                 if (ost->logfile && enc->stats_out) {
1231                     fprintf(ost->logfile, "%s", enc->stats_out);
1232                 }
1233             }
1234         }
1235         ost->sync_opts++;
1236         ost->frame_number++;
1237     }
1238 }
1239
1240 static double psnr(double d){
1241     return -10.0*log(d)/log(10.0);
1242 }
1243
1244 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1245                            int frame_size)
1246 {
1247     AVCodecContext *enc;
1248     int frame_number;
1249     double ti1, bitrate, avg_bitrate;
1250
1251     /* this is executed just the first time do_video_stats is called */
1252     if (!vstats_file) {
1253         vstats_file = fopen(vstats_filename, "w");
1254         if (!vstats_file) {
1255             perror("fopen");
1256             ffmpeg_exit(1);
1257         }
1258     }
1259
1260     enc = ost->st->codec;
1261     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1262         frame_number = ost->frame_number;
1263         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1264         if (enc->flags&CODEC_FLAG_PSNR)
1265             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1266
1267         fprintf(vstats_file,"f_size= %6d ", frame_size);
1268         /* compute pts value */
1269         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1270         if (ti1 < 0.01)
1271             ti1 = 0.01;
1272
1273         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1274         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1275         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1276             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1277         fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1278     }
1279 }
1280
1281 static void print_report(AVFormatContext **output_files,
1282                          AVOutputStream **ost_table, int nb_ostreams,
1283                          int is_last_report)
1284 {
1285     char buf[1024];
1286     AVOutputStream *ost;
1287     AVFormatContext *oc;
1288     int64_t total_size;
1289     AVCodecContext *enc;
1290     int frame_number, vid, i;
1291     double bitrate, ti1, pts;
1292     static int64_t last_time = -1;
1293     static int qp_histogram[52];
1294
1295     if (!is_last_report) {
1296         int64_t cur_time;
1297         /* display the report every 0.5 seconds */
1298         cur_time = av_gettime();
1299         if (last_time == -1) {
1300             last_time = cur_time;
1301             return;
1302         }
1303         if ((cur_time - last_time) < 500000)
1304             return;
1305         last_time = cur_time;
1306     }
1307
1308
1309     oc = output_files[0];
1310
1311     total_size = avio_size(oc->pb);
1312     if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1313         total_size= avio_tell(oc->pb);
1314
1315     buf[0] = '\0';
1316     ti1 = 1e10;
1317     vid = 0;
1318     for(i=0;i<nb_ostreams;i++) {
1319         ost = ost_table[i];
1320         enc = ost->st->codec;
1321         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1322             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1323                      !ost->st->stream_copy ?
1324                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1325         }
1326         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1327             float t = (av_gettime()-timer_start) / 1000000.0;
1328
1329             frame_number = ost->frame_number;
1330             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1331                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1332                      !ost->st->stream_copy ?
1333                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1334             if(is_last_report)
1335                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1336             if(qp_hist){
1337                 int j;
1338                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1339                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1340                     qp_histogram[qp]++;
1341                 for(j=0; j<32; j++)
1342                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1343             }
1344             if (enc->flags&CODEC_FLAG_PSNR){
1345                 int j;
1346                 double error, error_sum=0;
1347                 double scale, scale_sum=0;
1348                 char type[3]= {'Y','U','V'};
1349                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1350                 for(j=0; j<3; j++){
1351                     if(is_last_report){
1352                         error= enc->error[j];
1353                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1354                     }else{
1355                         error= enc->coded_frame->error[j];
1356                         scale= enc->width*enc->height*255.0*255.0;
1357                     }
1358                     if(j) scale/=4;
1359                     error_sum += error;
1360                     scale_sum += scale;
1361                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1362                 }
1363                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1364             }
1365             vid = 1;
1366         }
1367         /* compute min output value */
1368         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1369         if ((pts < ti1) && (pts > 0))
1370             ti1 = pts;
1371     }
1372     if (ti1 < 0.01)
1373         ti1 = 0.01;
1374
1375     if (verbose > 0 || is_last_report) {
1376         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1377
1378         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1379             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1380             (double)total_size / 1024, ti1, bitrate);
1381
1382         if (nb_frames_dup || nb_frames_drop)
1383           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1384                   nb_frames_dup, nb_frames_drop);
1385
1386         if (verbose >= 0)
1387             fprintf(stderr, "%s    \r", buf);
1388
1389         fflush(stderr);
1390     }
1391
1392     if (is_last_report && verbose >= 0){
1393         int64_t raw= audio_size + video_size + extra_size;
1394         fprintf(stderr, "\n");
1395         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1396                 video_size/1024.0,
1397                 audio_size/1024.0,
1398                 extra_size/1024.0,
1399                 100.0*(total_size - raw)/raw
1400         );
1401     }
1402 }
1403
1404 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1405 {
1406     int fill_char = 0x00;
1407     if (sample_fmt == AV_SAMPLE_FMT_U8)
1408         fill_char = 0x80;
1409     memset(buf, fill_char, size);
1410 }
1411
1412 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1413 static int output_packet(AVInputStream *ist, int ist_index,
1414                          AVOutputStream **ost_table, int nb_ostreams,
1415                          const AVPacket *pkt)
1416 {
1417     AVFormatContext *os;
1418     AVOutputStream *ost;
1419     int ret, i;
1420     int got_picture;
1421     AVFrame picture;
1422     void *buffer_to_free;
1423     static unsigned int samples_size= 0;
1424     AVSubtitle subtitle, *subtitle_to_free;
1425     int64_t pkt_pts = AV_NOPTS_VALUE;
1426 #if CONFIG_AVFILTER
1427     int frame_available;
1428 #endif
1429
1430     AVPacket avpkt;
1431     int bps = av_get_bits_per_sample_fmt(ist->st->codec->sample_fmt)>>3;
1432
1433     if(ist->next_pts == AV_NOPTS_VALUE)
1434         ist->next_pts= ist->pts;
1435
1436     if (pkt == NULL) {
1437         /* EOF handling */
1438         av_init_packet(&avpkt);
1439         avpkt.data = NULL;
1440         avpkt.size = 0;
1441         goto handle_eof;
1442     } else {
1443         avpkt = *pkt;
1444     }
1445
1446     if(pkt->dts != AV_NOPTS_VALUE)
1447         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1448     if(pkt->pts != AV_NOPTS_VALUE)
1449         pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1450
1451     //while we have more to decode or while the decoder did output something on EOF
1452     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1453         uint8_t *data_buf, *decoded_data_buf;
1454         int data_size, decoded_data_size;
1455     handle_eof:
1456         ist->pts= ist->next_pts;
1457
1458         if(avpkt.size && avpkt.size != pkt->size &&
1459            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1460             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1461             ist->showed_multi_packet_warning=1;
1462         }
1463
1464         /* decode the packet if needed */
1465         decoded_data_buf = NULL; /* fail safe */
1466         decoded_data_size= 0;
1467         data_buf  = avpkt.data;
1468         data_size = avpkt.size;
1469         subtitle_to_free = NULL;
1470         if (ist->decoding_needed) {
1471             switch(ist->st->codec->codec_type) {
1472             case AVMEDIA_TYPE_AUDIO:{
1473                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1474                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1475                     av_free(samples);
1476                     samples= av_malloc(samples_size);
1477                 }
1478                 decoded_data_size= samples_size;
1479                     /* XXX: could avoid copy if PCM 16 bits with same
1480                        endianness as CPU */
1481                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1482                                             &avpkt);
1483                 if (ret < 0)
1484                     goto fail_decode;
1485                 avpkt.data += ret;
1486                 avpkt.size -= ret;
1487                 data_size   = ret;
1488                 /* Some bug in mpeg audio decoder gives */
1489                 /* decoded_data_size < 0, it seems they are overflows */
1490                 if (decoded_data_size <= 0) {
1491                     /* no audio frame */
1492                     continue;
1493                 }
1494                 decoded_data_buf = (uint8_t *)samples;
1495                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1496                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1497                 break;}
1498             case AVMEDIA_TYPE_VIDEO:
1499                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1500                     /* XXX: allocate picture correctly */
1501                     avcodec_get_frame_defaults(&picture);
1502                     avpkt.pts = pkt_pts;
1503                     avpkt.dts = ist->pts;
1504                     pkt_pts = AV_NOPTS_VALUE;
1505
1506                     ret = avcodec_decode_video2(ist->st->codec,
1507                                                 &picture, &got_picture, &avpkt);
1508                     ist->st->quality= picture.quality;
1509                     if (ret < 0)
1510                         goto fail_decode;
1511                     if (!got_picture) {
1512                         /* no picture yet */
1513                         goto discard_packet;
1514                     }
1515                     ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1516                     if (ist->st->codec->time_base.num != 0) {
1517                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1518                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1519                                           ist->st->codec->time_base.num * ticks) /
1520                             ist->st->codec->time_base.den;
1521                     }
1522                     avpkt.size = 0;
1523                     break;
1524             case AVMEDIA_TYPE_SUBTITLE:
1525                 ret = avcodec_decode_subtitle2(ist->st->codec,
1526                                                &subtitle, &got_picture, &avpkt);
1527                 if (ret < 0)
1528                     goto fail_decode;
1529                 if (!got_picture) {
1530                     goto discard_packet;
1531                 }
1532                 subtitle_to_free = &subtitle;
1533                 avpkt.size = 0;
1534                 break;
1535             default:
1536                 goto fail_decode;
1537             }
1538         } else {
1539             switch(ist->st->codec->codec_type) {
1540             case AVMEDIA_TYPE_AUDIO:
1541                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1542                     ist->st->codec->sample_rate;
1543                 break;
1544             case AVMEDIA_TYPE_VIDEO:
1545                 if (ist->st->codec->time_base.num != 0) {
1546                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1547                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1548                                       ist->st->codec->time_base.num * ticks) /
1549                         ist->st->codec->time_base.den;
1550                 }
1551                 break;
1552             }
1553             ret = avpkt.size;
1554             avpkt.size = 0;
1555         }
1556
1557         buffer_to_free = NULL;
1558         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1559             pre_process_video_frame(ist, (AVPicture *)&picture,
1560                                     &buffer_to_free);
1561         }
1562
1563 #if CONFIG_AVFILTER
1564         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1565             AVRational sar;
1566             if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio;
1567             else                                  sar = ist->st->codec->sample_aspect_ratio;
1568             // add it to be filtered
1569             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1570                                      ist->pts,
1571                                      sar);
1572         }
1573 #endif
1574
1575         // preprocess audio (volume)
1576         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1577             if (audio_volume != 256) {
1578                 short *volp;
1579                 volp = samples;
1580                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1581                     int v = ((*volp) * audio_volume + 128) >> 8;
1582                     if (v < -32768) v = -32768;
1583                     if (v >  32767) v = 32767;
1584                     *volp++ = v;
1585                 }
1586             }
1587         }
1588
1589         /* frame rate emulation */
1590         if (rate_emu) {
1591             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1592             int64_t now = av_gettime() - ist->start;
1593             if (pts > now)
1594                 usleep(pts - now);
1595         }
1596 #if CONFIG_AVFILTER
1597         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1598             !ist->output_video_filter || avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1599 #endif
1600         /* if output time reached then transcode raw format,
1601            encode packets and output them */
1602         if (start_time == 0 || ist->pts >= start_time)
1603 #if CONFIG_AVFILTER
1604         while (frame_available) {
1605             AVRational ist_pts_tb;
1606             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->output_video_filter)
1607                 get_filtered_video_frame(ist->output_video_filter, &picture, &ist->picref, &ist_pts_tb);
1608             if (ist->picref)
1609                 ist->pts = av_rescale_q(ist->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1610 #endif
1611             for(i=0;i<nb_ostreams;i++) {
1612                 int frame_size;
1613
1614                 ost = ost_table[i];
1615                 if (ost->source_index == ist_index) {
1616                     os = output_files[ost->file_index];
1617
1618                     /* set the input output pts pairs */
1619                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1620
1621                     if (ost->encoding_needed) {
1622                         av_assert0(ist->decoding_needed);
1623                         switch(ost->st->codec->codec_type) {
1624                         case AVMEDIA_TYPE_AUDIO:
1625                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1626                             break;
1627                         case AVMEDIA_TYPE_VIDEO:
1628 #if CONFIG_AVFILTER
1629                             if (ist->picref->video)
1630                                 ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;
1631 #endif
1632                             do_video_out(os, ost, ist, &picture, &frame_size);
1633                             if (vstats_filename && frame_size)
1634                                 do_video_stats(os, ost, frame_size);
1635                             break;
1636                         case AVMEDIA_TYPE_SUBTITLE:
1637                             do_subtitle_out(os, ost, ist, &subtitle,
1638                                             pkt->pts);
1639                             break;
1640                         default:
1641                             abort();
1642                         }
1643                     } else {
1644                         AVFrame avframe; //FIXME/XXX remove this
1645                         AVPacket opkt;
1646                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1647
1648                         av_init_packet(&opkt);
1649
1650                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1651                             continue;
1652
1653                         /* no reencoding needed : output the packet directly */
1654                         /* force the input stream PTS */
1655
1656                         avcodec_get_frame_defaults(&avframe);
1657                         ost->st->codec->coded_frame= &avframe;
1658                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1659
1660                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1661                             audio_size += data_size;
1662                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1663                             video_size += data_size;
1664                             ost->sync_opts++;
1665                         }
1666
1667                         opkt.stream_index= ost->index;
1668                         if(pkt->pts != AV_NOPTS_VALUE)
1669                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1670                         else
1671                             opkt.pts= AV_NOPTS_VALUE;
1672
1673                         if (pkt->dts == AV_NOPTS_VALUE)
1674                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1675                         else
1676                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1677                         opkt.dts -= ost_tb_start_time;
1678
1679                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1680                         opkt.flags= pkt->flags;
1681
1682                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1683                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1684                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1685                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1686                            ) {
1687                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1688                                 opkt.destruct= av_destruct_packet;
1689                         } else {
1690                             opkt.data = data_buf;
1691                             opkt.size = data_size;
1692                         }
1693
1694                         write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1695                         ost->st->codec->frame_number++;
1696                         ost->frame_number++;
1697                         av_free_packet(&opkt);
1698                     }
1699                 }
1700             }
1701
1702 #if CONFIG_AVFILTER
1703             frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1704                               ist->output_video_filter && avfilter_poll_frame(ist->output_video_filter->inputs[0]);
1705             if(ist->picref)
1706                 avfilter_unref_buffer(ist->picref);
1707         }
1708 #endif
1709         av_free(buffer_to_free);
1710         /* XXX: allocate the subtitles in the codec ? */
1711         if (subtitle_to_free) {
1712             avsubtitle_free(subtitle_to_free);
1713             subtitle_to_free = NULL;
1714         }
1715     }
1716  discard_packet:
1717     if (pkt == NULL) {
1718         /* EOF handling */
1719
1720         for(i=0;i<nb_ostreams;i++) {
1721             ost = ost_table[i];
1722             if (ost->source_index == ist_index) {
1723                 AVCodecContext *enc= ost->st->codec;
1724                 os = output_files[ost->file_index];
1725
1726                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1727                     continue;
1728                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1729                     continue;
1730
1731                 if (ost->encoding_needed) {
1732                     for(;;) {
1733                         AVPacket pkt;
1734                         int fifo_bytes;
1735                         av_init_packet(&pkt);
1736                         pkt.stream_index= ost->index;
1737
1738                         switch(ost->st->codec->codec_type) {
1739                         case AVMEDIA_TYPE_AUDIO:
1740                             fifo_bytes = av_fifo_size(ost->fifo);
1741                             ret = 0;
1742                             /* encode any samples remaining in fifo */
1743                             if (fifo_bytes > 0) {
1744                                 int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
1745                                 int fs_tmp = enc->frame_size;
1746
1747                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1748                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1749                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1750                                 } else { /* pad */
1751                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1752                                     if (allocated_audio_buf_size < frame_bytes)
1753                                         ffmpeg_exit(1);
1754                                     generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1755                                 }
1756
1757                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1758                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1759                                                           ost->st->time_base.num, enc->sample_rate);
1760                                 enc->frame_size = fs_tmp;
1761                             }
1762                             if(ret <= 0) {
1763                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1764                             }
1765                             if (ret < 0) {
1766                                 fprintf(stderr, "Audio encoding failed\n");
1767                                 ffmpeg_exit(1);
1768                             }
1769                             audio_size += ret;
1770                             pkt.flags |= AV_PKT_FLAG_KEY;
1771                             break;
1772                         case AVMEDIA_TYPE_VIDEO:
1773                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1774                             if (ret < 0) {
1775                                 fprintf(stderr, "Video encoding failed\n");
1776                                 ffmpeg_exit(1);
1777                             }
1778                             video_size += ret;
1779                             if(enc->coded_frame && enc->coded_frame->key_frame)
1780                                 pkt.flags |= AV_PKT_FLAG_KEY;
1781                             if (ost->logfile && enc->stats_out) {
1782                                 fprintf(ost->logfile, "%s", enc->stats_out);
1783                             }
1784                             break;
1785                         default:
1786                             ret=-1;
1787                         }
1788
1789                         if(ret<=0)
1790                             break;
1791                         pkt.data= bit_buffer;
1792                         pkt.size= ret;
1793                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1794                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1795                         write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1796                     }
1797                 }
1798             }
1799         }
1800     }
1801
1802     return 0;
1803  fail_decode:
1804     return -1;
1805 }
1806
1807 static void print_sdp(AVFormatContext **avc, int n)
1808 {
1809     char sdp[2048];
1810
1811     av_sdp_create(avc, n, sdp, sizeof(sdp));
1812     printf("SDP:\n%s\n", sdp);
1813     fflush(stdout);
1814 }
1815
1816 static int copy_chapters(int infile, int outfile)
1817 {
1818     AVFormatContext *is = input_files[infile];
1819     AVFormatContext *os = output_files[outfile];
1820     int i;
1821
1822     for (i = 0; i < is->nb_chapters; i++) {
1823         AVChapter *in_ch = is->chapters[i], *out_ch;
1824         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1825                                       AV_TIME_BASE_Q, in_ch->time_base);
1826         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1827                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1828
1829
1830         if (in_ch->end < ts_off)
1831             continue;
1832         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1833             break;
1834
1835         out_ch = av_mallocz(sizeof(AVChapter));
1836         if (!out_ch)
1837             return AVERROR(ENOMEM);
1838
1839         out_ch->id        = in_ch->id;
1840         out_ch->time_base = in_ch->time_base;
1841         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1842         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1843
1844         if (metadata_chapters_autocopy)
1845             av_metadata_copy(&out_ch->metadata, in_ch->metadata, 0);
1846
1847         os->nb_chapters++;
1848         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1849         if (!os->chapters)
1850             return AVERROR(ENOMEM);
1851         os->chapters[os->nb_chapters - 1] = out_ch;
1852     }
1853     return 0;
1854 }
1855
1856 static void parse_forced_key_frames(char *kf, AVOutputStream *ost,
1857                                     AVCodecContext *avctx)
1858 {
1859     char *p;
1860     int n = 1, i;
1861     int64_t t;
1862
1863     for (p = kf; *p; p++)
1864         if (*p == ',')
1865             n++;
1866     ost->forced_kf_count = n;
1867     ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1868     if (!ost->forced_kf_pts) {
1869         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1870         ffmpeg_exit(1);
1871     }
1872     for (i = 0; i < n; i++) {
1873         p = i ? strchr(p, ',') + 1 : kf;
1874         t = parse_time_or_die("force_key_frames", p, 1);
1875         ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1876     }
1877 }
1878
1879 /*
1880  * The following code is the main loop of the file converter
1881  */
1882 static int transcode(AVFormatContext **output_files,
1883                      int nb_output_files,
1884                      AVFormatContext **input_files,
1885                      int nb_input_files,
1886                      AVStreamMap *stream_maps, int nb_stream_maps)
1887 {
1888     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1889     AVFormatContext *is, *os;
1890     AVCodecContext *codec, *icodec;
1891     AVOutputStream *ost, **ost_table = NULL;
1892     AVInputStream *ist, **ist_table = NULL;
1893     AVInputFile *file_table;
1894     char error[1024];
1895     int key;
1896     int want_sdp = 1;
1897     uint8_t no_packet[MAX_FILES]={0};
1898     int no_packet_count=0;
1899
1900     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1901     if (!file_table)
1902         goto fail;
1903
1904     /* input stream init */
1905     j = 0;
1906     for(i=0;i<nb_input_files;i++) {
1907         is = input_files[i];
1908         file_table[i].ist_index = j;
1909         file_table[i].nb_streams = is->nb_streams;
1910         j += is->nb_streams;
1911     }
1912     nb_istreams = j;
1913
1914     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1915     if (!ist_table)
1916         goto fail;
1917
1918     for(i=0;i<nb_istreams;i++) {
1919         ist = av_mallocz(sizeof(AVInputStream));
1920         if (!ist)
1921             goto fail;
1922         ist_table[i] = ist;
1923     }
1924     j = 0;
1925     for(i=0;i<nb_input_files;i++) {
1926         is = input_files[i];
1927         for(k=0;k<is->nb_streams;k++) {
1928             ist = ist_table[j++];
1929             ist->st = is->streams[k];
1930             ist->file_index = i;
1931             ist->index = k;
1932             ist->discard = 1; /* the stream is discarded by default
1933                                  (changed later) */
1934
1935             if (rate_emu) {
1936                 ist->start = av_gettime();
1937             }
1938         }
1939     }
1940
1941     /* output stream init */
1942     nb_ostreams = 0;
1943     for(i=0;i<nb_output_files;i++) {
1944         os = output_files[i];
1945         if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1946             av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1947             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1948             ret = AVERROR(EINVAL);
1949             goto fail;
1950         }
1951         nb_ostreams += os->nb_streams;
1952     }
1953     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1954         fprintf(stderr, "Number of stream maps must match number of output streams\n");
1955         ret = AVERROR(EINVAL);
1956         goto fail;
1957     }
1958
1959     /* Sanity check the mapping args -- do the input files & streams exist? */
1960     for(i=0;i<nb_stream_maps;i++) {
1961         int fi = stream_maps[i].file_index;
1962         int si = stream_maps[i].stream_index;
1963
1964         if (fi < 0 || fi > nb_input_files - 1 ||
1965             si < 0 || si > file_table[fi].nb_streams - 1) {
1966             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1967             ret = AVERROR(EINVAL);
1968             goto fail;
1969         }
1970         fi = stream_maps[i].sync_file_index;
1971         si = stream_maps[i].sync_stream_index;
1972         if (fi < 0 || fi > nb_input_files - 1 ||
1973             si < 0 || si > file_table[fi].nb_streams - 1) {
1974             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1975             ret = AVERROR(EINVAL);
1976             goto fail;
1977         }
1978     }
1979
1980     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1981     if (!ost_table)
1982         goto fail;
1983     n = 0;
1984     for(k=0;k<nb_output_files;k++) {
1985         os = output_files[k];
1986         for(i=0;i<os->nb_streams;i++,n++) {
1987             int found;
1988             ost = ost_table[n] = output_streams_for_file[k][i];
1989             ost->st = os->streams[i];
1990             if (nb_stream_maps > 0) {
1991                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1992                     stream_maps[n].stream_index;
1993
1994                 /* Sanity check that the stream types match */
1995                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1996                     int i= ost->file_index;
1997                     av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1998                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1999                         stream_maps[n].file_index, stream_maps[n].stream_index,
2000                         ost->file_index, ost->index);
2001                     ffmpeg_exit(1);
2002                 }
2003
2004             } else {
2005                 int best_nb_frames=-1;
2006                 /* get corresponding input stream index : we select the first one with the right type */
2007                 found = 0;
2008                 for(j=0;j<nb_istreams;j++) {
2009                     int skip=0;
2010                     ist = ist_table[j];
2011                     if(opt_programid){
2012                         int pi,si;
2013                         AVFormatContext *f= input_files[ ist->file_index ];
2014                         skip=1;
2015                         for(pi=0; pi<f->nb_programs; pi++){
2016                             AVProgram *p= f->programs[pi];
2017                             if(p->id == opt_programid)
2018                                 for(si=0; si<p->nb_stream_indexes; si++){
2019                                     if(f->streams[ p->stream_index[si] ] == ist->st)
2020                                         skip=0;
2021                                 }
2022                         }
2023                     }
2024                     if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2025                         ist->st->codec->codec_type == ost->st->codec->codec_type) {
2026                         if(best_nb_frames < ist->st->codec_info_nb_frames){
2027                             best_nb_frames= ist->st->codec_info_nb_frames;
2028                             ost->source_index = j;
2029                             found = 1;
2030                         }
2031                     }
2032                 }
2033
2034                 if (!found) {
2035                     if(! opt_programid) {
2036                         /* try again and reuse existing stream */
2037                         for(j=0;j<nb_istreams;j++) {
2038                             ist = ist_table[j];
2039                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2040                                 && ist->st->discard != AVDISCARD_ALL) {
2041                                 ost->source_index = j;
2042                                 found = 1;
2043                             }
2044                         }
2045                     }
2046                     if (!found) {
2047                         int i= ost->file_index;
2048                         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2049                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2050                                 ost->file_index, ost->index);
2051                         ffmpeg_exit(1);
2052                     }
2053                 }
2054             }
2055             ist = ist_table[ost->source_index];
2056             ist->discard = 0;
2057             ost->sync_ist = (nb_stream_maps > 0) ?
2058                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2059                          stream_maps[n].sync_stream_index] : ist;
2060         }
2061     }
2062
2063     /* for each output stream, we compute the right encoding parameters */
2064     for(i=0;i<nb_ostreams;i++) {
2065         ost = ost_table[i];
2066         os = output_files[ost->file_index];
2067         ist = ist_table[ost->source_index];
2068
2069         codec = ost->st->codec;
2070         icodec = ist->st->codec;
2071
2072         if (metadata_streams_autocopy)
2073             av_metadata_copy(&ost->st->metadata, ist->st->metadata,
2074                              AV_METADATA_DONT_OVERWRITE);
2075
2076         ost->st->disposition = ist->st->disposition;
2077         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2078         codec->chroma_sample_location = icodec->chroma_sample_location;
2079
2080         if (ost->st->stream_copy) {
2081             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2082
2083             if (extra_size > INT_MAX)
2084                 goto fail;
2085
2086             /* if stream_copy is selected, no need to decode or encode */
2087             codec->codec_id = icodec->codec_id;
2088             codec->codec_type = icodec->codec_type;
2089
2090             if(!codec->codec_tag){
2091                 if(   !os->oformat->codec_tag
2092                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2093                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2094                     codec->codec_tag = icodec->codec_tag;
2095             }
2096
2097             codec->bit_rate = icodec->bit_rate;
2098             codec->rc_max_rate    = icodec->rc_max_rate;
2099             codec->rc_buffer_size = icodec->rc_buffer_size;
2100             codec->extradata= av_mallocz(extra_size);
2101             if (!codec->extradata)
2102                 goto fail;
2103             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2104             codec->extradata_size= icodec->extradata_size;
2105             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){
2106                 codec->time_base = icodec->time_base;
2107                 codec->time_base.num *= icodec->ticks_per_frame;
2108                 av_reduce(&codec->time_base.num, &codec->time_base.den,
2109                           codec->time_base.num, codec->time_base.den, INT_MAX);
2110             }else
2111                 codec->time_base = ist->st->time_base;
2112             switch(codec->codec_type) {
2113             case AVMEDIA_TYPE_AUDIO:
2114                 if(audio_volume != 256) {
2115                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2116                     ffmpeg_exit(1);
2117                 }
2118                 codec->channel_layout = icodec->channel_layout;
2119                 codec->sample_rate = icodec->sample_rate;
2120                 codec->channels = icodec->channels;
2121                 codec->frame_size = icodec->frame_size;
2122                 codec->audio_service_type = icodec->audio_service_type;
2123                 codec->block_align= icodec->block_align;
2124                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2125                     codec->block_align= 0;
2126                 if(codec->codec_id == CODEC_ID_AC3)
2127                     codec->block_align= 0;
2128                 break;
2129             case AVMEDIA_TYPE_VIDEO:
2130                 codec->pix_fmt = icodec->pix_fmt;
2131                 codec->width = icodec->width;
2132                 codec->height = icodec->height;
2133                 codec->has_b_frames = icodec->has_b_frames;
2134                 break;
2135             case AVMEDIA_TYPE_SUBTITLE:
2136                 codec->width = icodec->width;
2137                 codec->height = icodec->height;
2138                 break;
2139             case AVMEDIA_TYPE_DATA:
2140                 break;
2141             default:
2142                 abort();
2143             }
2144         } else {
2145             switch(codec->codec_type) {
2146             case AVMEDIA_TYPE_AUDIO:
2147                 ost->fifo= av_fifo_alloc(1024);
2148                 if(!ost->fifo)
2149                     goto fail;
2150                 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
2151                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2152                 icodec->request_channels = codec->channels;
2153                 ist->decoding_needed = 1;
2154                 ost->encoding_needed = 1;
2155                 ost->resample_sample_fmt  = icodec->sample_fmt;
2156                 ost->resample_sample_rate = icodec->sample_rate;
2157                 ost->resample_channels    = icodec->channels;
2158                 break;
2159             case AVMEDIA_TYPE_VIDEO:
2160                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2161                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2162                     ffmpeg_exit(1);
2163                 }
2164                 ost->video_resample = (codec->width != icodec->width   ||
2165                                        codec->height != icodec->height ||
2166                         (codec->pix_fmt != icodec->pix_fmt));
2167                 if (ost->video_resample) {
2168 #if !CONFIG_AVFILTER
2169                     avcodec_get_frame_defaults(&ost->pict_tmp);
2170                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2171                                          codec->width, codec->height)) {
2172                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2173                         ffmpeg_exit(1);
2174                     }
2175                     ost->img_resample_ctx = sws_getContext(
2176                         icodec->width,
2177                         icodec->height,
2178                             icodec->pix_fmt,
2179                             codec->width,
2180                             codec->height,
2181                             codec->pix_fmt,
2182                             ost->sws_flags, NULL, NULL, NULL);
2183                     if (ost->img_resample_ctx == NULL) {
2184                         fprintf(stderr, "Cannot get resampling context\n");
2185                         ffmpeg_exit(1);
2186                     }
2187 #endif
2188                     codec->bits_per_raw_sample= 0;
2189                 }
2190                 ost->resample_height = icodec->height;
2191                 ost->resample_width  = icodec->width;
2192                 ost->resample_pix_fmt= icodec->pix_fmt;
2193                 ost->encoding_needed = 1;
2194                 ist->decoding_needed = 1;
2195
2196 #if CONFIG_AVFILTER
2197                 if (configure_video_filters(ist, ost)) {
2198                     fprintf(stderr, "Error opening filters!\n");
2199                     exit(1);
2200                 }
2201 #endif
2202                 break;
2203             case AVMEDIA_TYPE_SUBTITLE:
2204                 ost->encoding_needed = 1;
2205                 ist->decoding_needed = 1;
2206                 break;
2207             default:
2208                 abort();
2209                 break;
2210             }
2211             /* two pass mode */
2212             if (ost->encoding_needed &&
2213                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2214                 char logfilename[1024];
2215                 FILE *f;
2216
2217                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2218                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2219                          i);
2220                 if (codec->flags & CODEC_FLAG_PASS1) {
2221                     f = fopen(logfilename, "wb");
2222                     if (!f) {
2223                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2224                         ffmpeg_exit(1);
2225                     }
2226                     ost->logfile = f;
2227                 } else {
2228                     char  *logbuffer;
2229                     size_t logbuffer_size;
2230                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2231                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2232                         ffmpeg_exit(1);
2233                     }
2234                     codec->stats_in = logbuffer;
2235                 }
2236             }
2237         }
2238         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2239             int size= codec->width * codec->height;
2240             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2241         }
2242     }
2243
2244     if (!bit_buffer)
2245         bit_buffer = av_malloc(bit_buffer_size);
2246     if (!bit_buffer) {
2247         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2248                 bit_buffer_size);
2249         ret = AVERROR(ENOMEM);
2250         goto fail;
2251     }
2252
2253     /* open each encoder */
2254     for(i=0;i<nb_ostreams;i++) {
2255         ost = ost_table[i];
2256         if (ost->encoding_needed) {
2257             AVCodec *codec = i < nb_output_codecs ? output_codecs[i] : NULL;
2258             AVCodecContext *dec = ist_table[ost->source_index]->st->codec;
2259             if (!codec)
2260                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2261             if (!codec) {
2262                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2263                          ost->st->codec->codec_id, ost->file_index, ost->index);
2264                 ret = AVERROR(EINVAL);
2265                 goto dump_format;
2266             }
2267             if (dec->subtitle_header) {
2268                 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2269                 if (!ost->st->codec->subtitle_header) {
2270                     ret = AVERROR(ENOMEM);
2271                     goto dump_format;
2272                 }
2273                 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2274                 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2275             }
2276             if (avcodec_open(ost->st->codec, codec) < 0) {
2277                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2278                         ost->file_index, ost->index);
2279                 ret = AVERROR(EINVAL);
2280                 goto dump_format;
2281             }
2282             extra_size += ost->st->codec->extradata_size;
2283         }
2284     }
2285
2286     /* open each decoder */
2287     for(i=0;i<nb_istreams;i++) {
2288         ist = ist_table[i];
2289         if (ist->decoding_needed) {
2290             AVCodec *codec = i < nb_input_codecs ? input_codecs[i] : NULL;
2291             if (!codec)
2292                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2293             if (!codec) {
2294                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2295                         ist->st->codec->codec_id, ist->file_index, ist->index);
2296                 ret = AVERROR(EINVAL);
2297                 goto dump_format;
2298             }
2299             if (avcodec_open(ist->st->codec, codec) < 0) {
2300                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2301                         ist->file_index, ist->index);
2302                 ret = AVERROR(EINVAL);
2303                 goto dump_format;
2304             }
2305             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2306             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2307         }
2308     }
2309
2310     /* init pts */
2311     for(i=0;i<nb_istreams;i++) {
2312         AVStream *st;
2313         ist = ist_table[i];
2314         st= ist->st;
2315         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2316         ist->next_pts = AV_NOPTS_VALUE;
2317         init_pts_correction(&ist->pts_ctx);
2318         ist->is_start = 1;
2319     }
2320
2321     /* set meta data information from input file if required */
2322     for (i=0;i<nb_meta_data_maps;i++) {
2323         AVFormatContext *files[2];
2324         AVMetadata      **meta[2];
2325         int j;
2326
2327 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
2328         if ((index) < 0 || (index) >= (nb_elems)) {\
2329             snprintf(error, sizeof(error), "Invalid %s index %d while processing metadata maps\n",\
2330                      (desc), (index));\
2331             ret = AVERROR(EINVAL);\
2332             goto dump_format;\
2333         }
2334
2335         int out_file_index = meta_data_maps[i][0].file;
2336         int in_file_index = meta_data_maps[i][1].file;
2337         if (in_file_index < 0 || out_file_index < 0)
2338             continue;
2339         METADATA_CHECK_INDEX(out_file_index, nb_output_files, "output file")
2340         METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
2341
2342         files[0] = output_files[out_file_index];
2343         files[1] = input_files[in_file_index];
2344
2345         for (j = 0; j < 2; j++) {
2346             AVMetaDataMap *map = &meta_data_maps[i][j];
2347
2348             switch (map->type) {
2349             case 'g':
2350                 meta[j] = &files[j]->metadata;
2351                 break;
2352             case 's':
2353                 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
2354                 meta[j] = &files[j]->streams[map->index]->metadata;
2355                 break;
2356             case 'c':
2357                 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
2358                 meta[j] = &files[j]->chapters[map->index]->metadata;
2359                 break;
2360             case 'p':
2361                 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
2362                 meta[j] = &files[j]->programs[map->index]->metadata;
2363                 break;
2364             }
2365         }
2366
2367         av_metadata_copy(meta[0], *meta[1], AV_METADATA_DONT_OVERWRITE);
2368     }
2369
2370     /* copy global metadata by default */
2371     if (metadata_global_autocopy) {
2372
2373         for (i = 0; i < nb_output_files; i++)
2374             av_metadata_copy(&output_files[i]->metadata, input_files[0]->metadata,
2375                              AV_METADATA_DONT_OVERWRITE);
2376     }
2377
2378     /* copy chapters according to chapter maps */
2379     for (i = 0; i < nb_chapter_maps; i++) {
2380         int infile  = chapter_maps[i].in_file;
2381         int outfile = chapter_maps[i].out_file;
2382
2383         if (infile < 0 || outfile < 0)
2384             continue;
2385         if (infile >= nb_input_files) {
2386             snprintf(error, sizeof(error), "Invalid input file index %d in chapter mapping.\n", infile);
2387             ret = AVERROR(EINVAL);
2388             goto dump_format;
2389         }
2390         if (outfile >= nb_output_files) {
2391             snprintf(error, sizeof(error), "Invalid output file index %d in chapter mapping.\n",outfile);
2392             ret = AVERROR(EINVAL);
2393             goto dump_format;
2394         }
2395         copy_chapters(infile, outfile);
2396     }
2397
2398     /* copy chapters from the first input file that has them*/
2399     if (!nb_chapter_maps)
2400         for (i = 0; i < nb_input_files; i++) {
2401             if (!input_files[i]->nb_chapters)
2402                 continue;
2403
2404             for (j = 0; j < nb_output_files; j++)
2405                 if ((ret = copy_chapters(i, j)) < 0)
2406                     goto dump_format;
2407             break;
2408         }
2409
2410     /* open files and write file headers */
2411     for(i=0;i<nb_output_files;i++) {
2412         os = output_files[i];
2413         if (av_write_header(os) < 0) {
2414             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2415             ret = AVERROR(EINVAL);
2416             goto dump_format;
2417         }
2418         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2419             want_sdp = 0;
2420         }
2421     }
2422
2423  dump_format:
2424     /* dump the file output parameters - cannot be done before in case
2425        of stream copy */
2426     for(i=0;i<nb_output_files;i++) {
2427         av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2428     }
2429
2430     /* dump the stream mapping */
2431     if (verbose >= 0) {
2432         fprintf(stderr, "Stream mapping:\n");
2433         for(i=0;i<nb_ostreams;i++) {
2434             ost = ost_table[i];
2435             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2436                     ist_table[ost->source_index]->file_index,
2437                     ist_table[ost->source_index]->index,
2438                     ost->file_index,
2439                     ost->index);
2440             if (ost->sync_ist != ist_table[ost->source_index])
2441                 fprintf(stderr, " [sync #%d.%d]",
2442                         ost->sync_ist->file_index,
2443                         ost->sync_ist->index);
2444             fprintf(stderr, "\n");
2445         }
2446     }
2447
2448     if (ret) {
2449         fprintf(stderr, "%s\n", error);
2450         goto fail;
2451     }
2452
2453     if (want_sdp) {
2454         print_sdp(output_files, nb_output_files);
2455     }
2456
2457     if (!using_stdin && verbose >= 0) {
2458 #if HAVE_KBHIT
2459         fprintf(stderr, "Press [q] to stop encoding\n");
2460 #else
2461         fprintf(stderr, "Press ctrl-c to stop encoding\n");
2462 #endif
2463         avio_set_interrupt_cb(decode_interrupt_cb);
2464     }
2465     term_init();
2466
2467     timer_start = av_gettime();
2468
2469     for(; received_sigterm == 0;) {
2470         int file_index, ist_index;
2471         AVPacket pkt;
2472         double ipts_min;
2473         double opts_min;
2474
2475     redo:
2476         ipts_min= 1e100;
2477         opts_min= 1e100;
2478         /* if 'q' pressed, exits */
2479         if (!using_stdin) {
2480             if (q_pressed)
2481                 break;
2482             /* read_key() returns 0 on EOF */
2483             key = read_key();
2484             if (key == 'q')
2485                 break;
2486         }
2487
2488         /* select the stream that we must read now by looking at the
2489            smallest output pts */
2490         file_index = -1;
2491         for(i=0;i<nb_ostreams;i++) {
2492             double ipts, opts;
2493             ost = ost_table[i];
2494             os = output_files[ost->file_index];
2495             ist = ist_table[ost->source_index];
2496             if(ist->is_past_recording_time || no_packet[ist->file_index])
2497                 continue;
2498                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2499             ipts = (double)ist->pts;
2500             if (!file_table[ist->file_index].eof_reached){
2501                 if(ipts < ipts_min) {
2502                     ipts_min = ipts;
2503                     if(input_sync ) file_index = ist->file_index;
2504                 }
2505                 if(opts < opts_min) {
2506                     opts_min = opts;
2507                     if(!input_sync) file_index = ist->file_index;
2508                 }
2509             }
2510             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2511                 file_index= -1;
2512                 break;
2513             }
2514         }
2515         /* if none, if is finished */
2516         if (file_index < 0) {
2517             if(no_packet_count){
2518                 no_packet_count=0;
2519                 memset(no_packet, 0, sizeof(no_packet));
2520                 usleep(10000);
2521                 continue;
2522             }
2523             break;
2524         }
2525
2526         /* finish if limit size exhausted */
2527         if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2528             break;
2529
2530         /* read a frame from it and output it in the fifo */
2531         is = input_files[file_index];
2532         ret= av_read_frame(is, &pkt);
2533         if(ret == AVERROR(EAGAIN)){
2534             no_packet[file_index]=1;
2535             no_packet_count++;
2536             continue;
2537         }
2538         if (ret < 0) {
2539             file_table[file_index].eof_reached = 1;
2540             if (opt_shortest)
2541                 break;
2542             else
2543                 continue;
2544         }
2545
2546         no_packet_count=0;
2547         memset(no_packet, 0, sizeof(no_packet));
2548
2549         if (do_pkt_dump) {
2550             av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2551                              is->streams[pkt.stream_index]);
2552         }
2553         /* the following test is needed in case new streams appear
2554            dynamically in stream : we ignore them */
2555         if (pkt.stream_index >= file_table[file_index].nb_streams)
2556             goto discard_packet;
2557         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2558         ist = ist_table[ist_index];
2559         if (ist->discard)
2560             goto discard_packet;
2561
2562         if (pkt.dts != AV_NOPTS_VALUE)
2563             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2564         if (pkt.pts != AV_NOPTS_VALUE)
2565             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2566
2567         if (pkt.stream_index < nb_input_files_ts_scale[file_index]
2568             && input_files_ts_scale[file_index][pkt.stream_index]){
2569             if(pkt.pts != AV_NOPTS_VALUE)
2570                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2571             if(pkt.dts != AV_NOPTS_VALUE)
2572                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2573         }
2574
2575 //        fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2576         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2577             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2578             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2579             int64_t delta= pkt_dts - ist->next_pts;
2580             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2581                 input_files_ts_offset[ist->file_index]-= delta;
2582                 if (verbose > 2)
2583                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2584                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2585                 if(pkt.pts != AV_NOPTS_VALUE)
2586                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2587             }
2588         }
2589
2590         /* finish if recording time exhausted */
2591         if (recording_time != INT64_MAX &&
2592             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2593             ist->is_past_recording_time = 1;
2594             goto discard_packet;
2595         }
2596
2597         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2598         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2599
2600             if (verbose >= 0)
2601                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2602                         ist->file_index, ist->index);
2603             if (exit_on_error)
2604                 ffmpeg_exit(1);
2605             av_free_packet(&pkt);
2606             goto redo;
2607         }
2608
2609     discard_packet:
2610         av_free_packet(&pkt);
2611
2612         /* dump report by using the output first video and audio streams */
2613         print_report(output_files, ost_table, nb_ostreams, 0);
2614     }
2615
2616     /* at the end of stream, we must flush the decoder buffers */
2617     for(i=0;i<nb_istreams;i++) {
2618         ist = ist_table[i];
2619         if (ist->decoding_needed) {
2620             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2621         }
2622     }
2623
2624     term_exit();
2625
2626     /* write the trailer if needed and close file */
2627     for(i=0;i<nb_output_files;i++) {
2628         os = output_files[i];
2629         av_write_trailer(os);
2630     }
2631
2632     /* dump report by using the first video and audio streams */
2633     print_report(output_files, ost_table, nb_ostreams, 1);
2634
2635     /* close each encoder */
2636     for(i=0;i<nb_ostreams;i++) {
2637         ost = ost_table[i];
2638         if (ost->encoding_needed) {
2639             av_freep(&ost->st->codec->stats_in);
2640             avcodec_close(ost->st->codec);
2641         }
2642     }
2643
2644     /* close each decoder */
2645     for(i=0;i<nb_istreams;i++) {
2646         ist = ist_table[i];
2647         if (ist->decoding_needed) {
2648             avcodec_close(ist->st->codec);
2649         }
2650     }
2651 #if CONFIG_AVFILTER
2652     avfilter_graph_free(&graph);
2653 #endif
2654
2655     /* finished ! */
2656     ret = 0;
2657
2658  fail:
2659     av_freep(&bit_buffer);
2660     av_free(file_table);
2661
2662     if (ist_table) {
2663         for(i=0;i<nb_istreams;i++) {
2664             ist = ist_table[i];
2665             av_free(ist);
2666         }
2667         av_free(ist_table);
2668     }
2669     if (ost_table) {
2670         for(i=0;i<nb_ostreams;i++) {
2671             ost = ost_table[i];
2672             if (ost) {
2673                 if (ost->st->stream_copy)
2674                     av_freep(&ost->st->codec->extradata);
2675                 if (ost->logfile) {
2676                     fclose(ost->logfile);
2677                     ost->logfile = NULL;
2678                 }
2679                 av_fifo_free(ost->fifo); /* works even if fifo is not
2680                                              initialized but set to zero */
2681                 av_freep(&ost->st->codec->subtitle_header);
2682                 av_free(ost->pict_tmp.data[0]);
2683                 av_free(ost->forced_kf_pts);
2684                 if (ost->video_resample)
2685                     sws_freeContext(ost->img_resample_ctx);
2686                 if (ost->resample)
2687                     audio_resample_close(ost->resample);
2688                 if (ost->reformat_ctx)
2689                     av_audio_convert_free(ost->reformat_ctx);
2690                 av_free(ost);
2691             }
2692         }
2693         av_free(ost_table);
2694     }
2695     return ret;
2696 }
2697
2698 static void opt_format(const char *arg)
2699 {
2700     last_asked_format = arg;
2701 }
2702
2703 static void opt_video_rc_override_string(const char *arg)
2704 {
2705     video_rc_override_string = arg;
2706 }
2707
2708 static int opt_me_threshold(const char *opt, const char *arg)
2709 {
2710     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2711     return 0;
2712 }
2713
2714 static int opt_verbose(const char *opt, const char *arg)
2715 {
2716     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2717     return 0;
2718 }
2719
2720 static int opt_frame_rate(const char *opt, const char *arg)
2721 {
2722     if (av_parse_video_rate(&frame_rate, arg) < 0) {
2723         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2724         ffmpeg_exit(1);
2725     }
2726     return 0;
2727 }
2728
2729 static int opt_bitrate(const char *opt, const char *arg)
2730 {
2731     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2732
2733     opt_default(opt, arg);
2734
2735     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2736         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2737
2738     return 0;
2739 }
2740
2741 static int opt_frame_crop(const char *opt, const char *arg)
2742 {
2743     fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2744     return AVERROR(EINVAL);
2745 }
2746
2747 static void opt_frame_size(const char *arg)
2748 {
2749     if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2750         fprintf(stderr, "Incorrect frame size\n");
2751         ffmpeg_exit(1);
2752     }
2753 }
2754
2755 static int opt_pad(const char *opt, const char *arg) {
2756     fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2757     return -1;
2758 }
2759
2760 static void opt_frame_pix_fmt(const char *arg)
2761 {
2762     if (strcmp(arg, "list")) {
2763         frame_pix_fmt = av_get_pix_fmt(arg);
2764         if (frame_pix_fmt == PIX_FMT_NONE) {
2765             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2766             ffmpeg_exit(1);
2767         }
2768     } else {
2769         show_pix_fmts();
2770         ffmpeg_exit(0);
2771     }
2772 }
2773
2774 static void opt_frame_aspect_ratio(const char *arg)
2775 {
2776     int x = 0, y = 0;
2777     double ar = 0;
2778     const char *p;
2779     char *end;
2780
2781     p = strchr(arg, ':');
2782     if (p) {
2783         x = strtol(arg, &end, 10);
2784         if (end == p)
2785             y = strtol(end+1, &end, 10);
2786         if (x > 0 && y > 0)
2787             ar = (double)x / (double)y;
2788     } else
2789         ar = strtod(arg, NULL);
2790
2791     if (!ar) {
2792         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2793         ffmpeg_exit(1);
2794     }
2795     frame_aspect_ratio = ar;
2796
2797 #if CONFIG_AVFILTER
2798     x = vfilters ? strlen(vfilters) : 0;
2799     vfilters = av_realloc(vfilters, x+100);
2800     snprintf(vfilters+x, x+100, "%csetdar=%f\n", x?',':' ', ar);
2801 #endif
2802 }
2803
2804 static int opt_metadata(const char *opt, const char *arg)
2805 {
2806     char *mid= strchr(arg, '=');
2807
2808     if(!mid){
2809         fprintf(stderr, "Missing =\n");
2810         ffmpeg_exit(1);
2811     }
2812     *mid++= 0;
2813
2814     av_metadata_set2(&metadata, arg, mid, 0);
2815
2816     return 0;
2817 }
2818
2819 static void opt_qscale(const char *arg)
2820 {
2821     video_qscale = atof(arg);
2822     if (video_qscale <= 0 ||
2823         video_qscale > 255) {
2824         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2825         ffmpeg_exit(1);
2826     }
2827 }
2828
2829 static void opt_top_field_first(const char *arg)
2830 {
2831     top_field_first= atoi(arg);
2832 }
2833
2834 static int opt_thread_count(const char *opt, const char *arg)
2835 {
2836     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2837 #if !HAVE_THREADS
2838     if (verbose >= 0)
2839         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2840 #endif
2841     return 0;
2842 }
2843
2844 static void opt_audio_sample_fmt(const char *arg)
2845 {
2846     if (strcmp(arg, "list")) {
2847         audio_sample_fmt = av_get_sample_fmt(arg);
2848         if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2849             av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2850             ffmpeg_exit(1);
2851         }
2852     } else {
2853         int i;
2854         char fmt_str[128];
2855         for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2856             printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2857         ffmpeg_exit(0);
2858     }
2859 }
2860
2861 static int opt_audio_rate(const char *opt, const char *arg)
2862 {
2863     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2864     return 0;
2865 }
2866
2867 static int opt_audio_channels(const char *opt, const char *arg)
2868 {
2869     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2870     return 0;
2871 }
2872
2873 static void opt_video_channel(const char *arg)
2874 {
2875     video_channel = strtol(arg, NULL, 0);
2876 }
2877
2878 static void opt_video_standard(const char *arg)
2879 {
2880     video_standard = av_strdup(arg);
2881 }
2882
2883 static void opt_codec(int *pstream_copy, char **pcodec_name,
2884                       int codec_type, const char *arg)
2885 {
2886     av_freep(pcodec_name);
2887     if (!strcmp(arg, "copy")) {
2888         *pstream_copy = 1;
2889     } else {
2890         *pcodec_name = av_strdup(arg);
2891     }
2892 }
2893
2894 static void opt_audio_codec(const char *arg)
2895 {
2896     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2897 }
2898
2899 static void opt_video_codec(const char *arg)
2900 {
2901     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2902 }
2903
2904 static void opt_subtitle_codec(const char *arg)
2905 {
2906     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2907 }
2908
2909 static void opt_data_codec(const char *arg)
2910 {
2911     opt_codec(&data_stream_copy, &data_codec_name, AVMEDIA_TYPE_DATA, arg);
2912 }
2913
2914 static int opt_codec_tag(const char *opt, const char *arg)
2915 {
2916     char *tail;
2917     uint32_t *codec_tag;
2918
2919     codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2920                 !strcmp(opt, "vtag") ? &video_codec_tag :
2921                 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2922     if (!codec_tag)
2923         return -1;
2924
2925     *codec_tag = strtol(arg, &tail, 0);
2926     if (!tail || *tail)
2927         *codec_tag = AV_RL32(arg);
2928
2929     return 0;
2930 }
2931
2932 static void opt_map(const char *arg)
2933 {
2934     AVStreamMap *m;
2935     char *p;
2936
2937     stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2938     m = &stream_maps[nb_stream_maps-1];
2939
2940     m->file_index = strtol(arg, &p, 0);
2941     if (*p)
2942         p++;
2943
2944     m->stream_index = strtol(p, &p, 0);
2945     if (*p) {
2946         p++;
2947         m->sync_file_index = strtol(p, &p, 0);
2948         if (*p)
2949             p++;
2950         m->sync_stream_index = strtol(p, &p, 0);
2951     } else {
2952         m->sync_file_index = m->file_index;
2953         m->sync_stream_index = m->stream_index;
2954     }
2955 }
2956
2957 static void parse_meta_type(char *arg, char *type, int *index, char **endptr)
2958 {
2959     *endptr = arg;
2960     if (*arg == ',') {
2961         *type = *(++arg);
2962         switch (*arg) {
2963         case 'g':
2964             break;
2965         case 's':
2966         case 'c':
2967         case 'p':
2968             *index = strtol(++arg, endptr, 0);
2969             break;
2970         default:
2971             fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2972             ffmpeg_exit(1);
2973         }
2974     } else
2975         *type = 'g';
2976 }
2977
2978 static void opt_map_metadata(const char *arg)
2979 {
2980     AVMetaDataMap *m, *m1;
2981     char *p;
2982
2983     meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2984                                 &nb_meta_data_maps, nb_meta_data_maps + 1);
2985
2986     m = &meta_data_maps[nb_meta_data_maps - 1][0];
2987     m->file = strtol(arg, &p, 0);
2988     parse_meta_type(p, &m->type, &m->index, &p);
2989     if (*p)
2990         p++;
2991
2992     m1 = &meta_data_maps[nb_meta_data_maps - 1][1];
2993     m1->file = strtol(p, &p, 0);
2994     parse_meta_type(p, &m1->type, &m1->index, &p);
2995
2996     if (m->type == 'g' || m1->type == 'g')
2997         metadata_global_autocopy = 0;
2998     if (m->type == 's' || m1->type == 's')
2999         metadata_streams_autocopy = 0;
3000     if (m->type == 'c' || m1->type == 'c')
3001         metadata_chapters_autocopy = 0;
3002 }
3003
3004 static void opt_map_meta_data(const char *arg)
3005 {
3006     fprintf(stderr, "-map_meta_data is deprecated and will be removed soon. "
3007                     "Use -map_metadata instead.\n");
3008     opt_map_metadata(arg);
3009 }
3010
3011 static void opt_map_chapters(const char *arg)
3012 {
3013     AVChapterMap *c;
3014     char *p;
3015
3016     chapter_maps = grow_array(chapter_maps, sizeof(*chapter_maps), &nb_chapter_maps,
3017                               nb_chapter_maps + 1);
3018     c = &chapter_maps[nb_chapter_maps - 1];
3019     c->out_file = strtol(arg, &p, 0);
3020     if (*p)
3021         p++;
3022
3023     c->in_file = strtol(p, &p, 0);
3024 }
3025
3026 static void opt_input_ts_scale(const char *arg)
3027 {
3028     unsigned int stream;
3029     double scale;
3030     char *p;
3031
3032     stream = strtol(arg, &p, 0);
3033     if (*p)
3034         p++;
3035     scale= strtod(p, &p);
3036
3037     if(stream >= MAX_STREAMS)
3038         ffmpeg_exit(1);
3039
3040     input_files_ts_scale[nb_input_files] = grow_array(input_files_ts_scale[nb_input_files], sizeof(*input_files_ts_scale[nb_input_files]), &nb_input_files_ts_scale[nb_input_files], stream + 1);
3041     input_files_ts_scale[nb_input_files][stream]= scale;
3042 }
3043
3044 static int opt_recording_time(const char *opt, const char *arg)
3045 {
3046     recording_time = parse_time_or_die(opt, arg, 1);
3047     return 0;
3048 }
3049
3050 static int opt_start_time(const char *opt, const char *arg)
3051 {
3052     start_time = parse_time_or_die(opt, arg, 1);
3053     return 0;
3054 }
3055
3056 static int opt_recording_timestamp(const char *opt, const char *arg)
3057 {
3058     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3059     return 0;
3060 }
3061
3062 static int opt_input_ts_offset(const char *opt, const char *arg)
3063 {
3064     input_ts_offset = parse_time_or_die(opt, arg, 1);
3065     return 0;
3066 }
3067
3068 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3069 {
3070     const char *codec_string = encoder ? "encoder" : "decoder";
3071     AVCodec *codec;
3072
3073     if(!name)
3074         return CODEC_ID_NONE;
3075     codec = encoder ?
3076         avcodec_find_encoder_by_name(name) :
3077         avcodec_find_decoder_by_name(name);
3078     if(!codec) {
3079         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3080         ffmpeg_exit(1);
3081     }
3082     if(codec->type != type) {
3083         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3084         ffmpeg_exit(1);
3085     }
3086     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3087        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3088         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3089                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3090                 codec_string, codec->name);
3091         codec = encoder ?
3092             avcodec_find_encoder(codec->id) :
3093             avcodec_find_decoder(codec->id);
3094         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3095             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3096                     codec_string, codec->name);
3097         ffmpeg_exit(1);
3098     }
3099     return codec->id;
3100 }
3101
3102 static void opt_input_file(const char *filename)
3103 {
3104     AVFormatContext *ic;
3105     AVFormatParameters params, *ap = &params;
3106     AVInputFormat *file_iformat = NULL;
3107     int err, i, ret, rfps, rfps_base;
3108     int64_t timestamp;
3109
3110     if (last_asked_format) {
3111         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3112             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3113             ffmpeg_exit(1);
3114         }
3115         last_asked_format = NULL;
3116     }
3117
3118     if (!strcmp(filename, "-"))
3119         filename = "pipe:";
3120
3121     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3122                     !strcmp(filename, "/dev/stdin");
3123
3124     /* get default parameters from command line */
3125     ic = avformat_alloc_context();
3126     if (!ic) {
3127         print_error(filename, AVERROR(ENOMEM));
3128         ffmpeg_exit(1);
3129     }
3130
3131     memset(ap, 0, sizeof(*ap));
3132     ap->prealloced_context = 1;
3133     ap->sample_rate = audio_sample_rate;
3134     ap->channels = audio_channels;
3135     ap->time_base.den = frame_rate.num;
3136     ap->time_base.num = frame_rate.den;
3137     ap->width = frame_width;
3138     ap->height = frame_height;
3139     ap->pix_fmt = frame_pix_fmt;
3140    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3141     ap->channel = video_channel;
3142     ap->standard = video_standard;
3143
3144     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
3145
3146     ic->video_codec_id   =
3147         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3148                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3149     ic->audio_codec_id   =
3150         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3151                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3152     ic->subtitle_codec_id=
3153         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3154                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3155     ic->flags |= AVFMT_FLAG_NONBLOCK;
3156
3157     /* open the input file with generic libav function */
3158     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3159     if (err < 0) {
3160         print_error(filename, err);
3161         ffmpeg_exit(1);
3162     }
3163     if(opt_programid) {
3164         int i, j;
3165         int found=0;
3166         for(i=0; i<ic->nb_streams; i++){
3167             ic->streams[i]->discard= AVDISCARD_ALL;
3168         }
3169         for(i=0; i<ic->nb_programs; i++){
3170             AVProgram *p= ic->programs[i];
3171             if(p->id != opt_programid){
3172                 p->discard = AVDISCARD_ALL;
3173             }else{
3174                 found=1;
3175                 for(j=0; j<p->nb_stream_indexes; j++){
3176                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3177                 }
3178             }
3179         }
3180         if(!found){
3181             fprintf(stderr, "Specified program id not found\n");
3182             ffmpeg_exit(1);
3183         }
3184         opt_programid=0;
3185     }
3186
3187     ic->loop_input = loop_input;
3188
3189     /* If not enough info to get the stream parameters, we decode the
3190        first frames to get it. (used in mpeg case for example) */
3191     ret = av_find_stream_info(ic);
3192     if (ret < 0 && verbose >= 0) {
3193         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3194         av_close_input_file(ic);
3195         ffmpeg_exit(1);
3196     }
3197
3198     timestamp = start_time;
3199     /* add the stream start time */
3200     if (ic->start_time != AV_NOPTS_VALUE)
3201         timestamp += ic->start_time;
3202
3203     /* if seeking requested, we execute it */
3204     if (start_time != 0) {
3205         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3206         if (ret < 0) {
3207             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3208                     filename, (double)timestamp / AV_TIME_BASE);
3209         }
3210         /* reset seek info */
3211         start_time = 0;
3212     }
3213
3214     /* update the current parameters so that they match the one of the input stream */
3215     for(i=0;i<ic->nb_streams;i++) {
3216         AVStream *st = ic->streams[i];
3217         AVCodecContext *dec = st->codec;
3218         dec->thread_count = thread_count;
3219         input_codecs = grow_array(input_codecs, sizeof(*input_codecs), &nb_input_codecs, nb_input_codecs + 1);
3220         switch (dec->codec_type) {
3221         case AVMEDIA_TYPE_AUDIO:
3222             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(audio_codec_name);
3223             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3224             channel_layout    = dec->channel_layout;
3225             audio_channels    = dec->channels;
3226             audio_sample_rate = dec->sample_rate;
3227             audio_sample_fmt  = dec->sample_fmt;
3228             if(audio_disable)
3229                 st->discard= AVDISCARD_ALL;
3230             /* Note that av_find_stream_info can add more streams, and we
3231              * currently have no chance of setting up lowres decoding
3232              * early enough for them. */
3233             if (dec->lowres)
3234                 audio_sample_rate >>= dec->lowres;
3235             break;
3236         case AVMEDIA_TYPE_VIDEO:
3237             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(video_codec_name);
3238             set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_input_codecs-1]);
3239             frame_height = dec->height;
3240             frame_width  = dec->width;
3241             if(ic->streams[i]->sample_aspect_ratio.num)
3242                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3243             else
3244                 frame_aspect_ratio=av_q2d(dec->sample_aspect_ratio);
3245             frame_aspect_ratio *= (float) dec->width / dec->height;
3246             frame_pix_fmt = dec->pix_fmt;
3247             rfps      = ic->streams[i]->r_frame_rate.num;
3248             rfps_base = ic->streams[i]->r_frame_rate.den;
3249             if (dec->lowres) {
3250                 dec->flags |= CODEC_FLAG_EMU_EDGE;
3251                 frame_height >>= dec->lowres;
3252                 frame_width  >>= dec->lowres;
3253                 dec->height = frame_height;
3254                 dec->width  = frame_width;
3255             }
3256             if(me_threshold)
3257                 dec->debug |= FF_DEBUG_MV;
3258
3259             if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
3260
3261                 if (verbose >= 0)
3262                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3263                             i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3264
3265                     (float)rfps / rfps_base, rfps, rfps_base);
3266             }
3267             /* update the current frame rate to match the stream frame rate */
3268             frame_rate.num = rfps;
3269             frame_rate.den = rfps_base;
3270
3271             if(video_disable)
3272                 st->discard= AVDISCARD_ALL;
3273             else if(video_discard)
3274                 st->discard= video_discard;
3275             break;
3276         case AVMEDIA_TYPE_DATA:
3277             break;
3278         case AVMEDIA_TYPE_SUBTITLE:
3279             input_codecs[nb_input_codecs-1] = avcodec_find_decoder_by_name(subtitle_codec_name);
3280             if(subtitle_disable)
3281                 st->discard = AVDISCARD_ALL;
3282             break;
3283         case AVMEDIA_TYPE_ATTACHMENT:
3284         case AVMEDIA_TYPE_UNKNOWN:
3285             break;
3286         default:
3287             abort();
3288         }
3289     }
3290
3291     input_files[nb_input_files] = ic;
3292     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3293     /* dump the file content */
3294     if (verbose >= 0)
3295         av_dump_format(ic, nb_input_files, filename, 0);
3296
3297     nb_input_files++;
3298
3299     video_channel = 0;
3300
3301     av_freep(&video_codec_name);
3302     av_freep(&audio_codec_name);
3303     av_freep(&subtitle_codec_name);
3304     uninit_opts();
3305     init_opts();
3306 }
3307
3308 static void check_inputs(int *has_video_ptr,
3309                          int *has_audio_ptr,
3310                          int *has_subtitle_ptr,
3311                          int *has_data_ptr)
3312 {
3313     int has_video, has_audio, has_subtitle, has_data, i, j;
3314     AVFormatContext *ic;
3315
3316     has_video = 0;
3317     has_audio = 0;
3318     has_subtitle = 0;
3319     has_data = 0;
3320
3321     for(j=0;j<nb_input_files;j++) {
3322         ic = input_files[j];
3323         for(i=0;i<ic->nb_streams;i++) {
3324             AVCodecContext *enc = ic->streams[i]->codec;
3325             switch(enc->codec_type) {
3326             case AVMEDIA_TYPE_AUDIO:
3327                 has_audio = 1;
3328                 break;
3329             case AVMEDIA_TYPE_VIDEO:
3330                 has_video = 1;
3331                 break;
3332             case AVMEDIA_TYPE_SUBTITLE:
3333                 has_subtitle = 1;
3334                 break;
3335             case AVMEDIA_TYPE_DATA:
3336             case AVMEDIA_TYPE_ATTACHMENT:
3337             case AVMEDIA_TYPE_UNKNOWN:
3338                 has_data = 1;
3339                 break;
3340             default:
3341                 abort();
3342             }
3343         }
3344     }
3345     *has_video_ptr = has_video;
3346     *has_audio_ptr = has_audio;
3347     *has_subtitle_ptr = has_subtitle;
3348     *has_data_ptr = has_data;
3349 }
3350
3351 static void new_video_stream(AVFormatContext *oc, int file_idx)
3352 {
3353     AVStream *st;
3354     AVOutputStream *ost;
3355     AVCodecContext *video_enc;
3356     enum CodecID codec_id = CODEC_ID_NONE;
3357     AVCodec *codec= NULL;
3358
3359     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3360     if (!st) {
3361         fprintf(stderr, "Could not alloc stream\n");
3362         ffmpeg_exit(1);
3363     }
3364     ost = new_output_stream(oc, file_idx);
3365
3366     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3367     if(!video_stream_copy){
3368         if (video_codec_name) {
3369             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3370                                          avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
3371             codec = avcodec_find_encoder_by_name(video_codec_name);
3372             output_codecs[nb_output_codecs-1] = codec;
3373         } else {
3374             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3375             codec = avcodec_find_encoder(codec_id);
3376         }
3377     }
3378
3379     avcodec_get_context_defaults3(st->codec, codec);
3380     ost->bitstream_filters = video_bitstream_filters;
3381     video_bitstream_filters= NULL;
3382
3383     st->codec->thread_count= thread_count;
3384
3385     video_enc = st->codec;
3386
3387     if(video_codec_tag)
3388         video_enc->codec_tag= video_codec_tag;
3389
3390     if(   (video_global_header&1)
3391        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3392         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3393         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3394     }
3395     if(video_global_header&2){
3396         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3397         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3398     }
3399
3400     if (video_stream_copy) {
3401         st->stream_copy = 1;
3402         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3403         video_enc->sample_aspect_ratio =
3404         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3405     } else {
3406         const char *p;
3407         int i;
3408         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3409
3410         video_enc->codec_id = codec_id;
3411         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3412
3413         if (codec && codec->supported_framerates && !force_fps)
3414             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3415         video_enc->time_base.den = fps.num;
3416         video_enc->time_base.num = fps.den;
3417
3418         video_enc->width = frame_width;
3419         video_enc->height = frame_height;
3420         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3421         video_enc->pix_fmt = frame_pix_fmt;
3422         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3423
3424         choose_pixel_fmt(st, codec);
3425
3426         if (intra_only)
3427             video_enc->gop_size = 0;
3428         if (video_qscale || same_quality) {
3429             video_enc->flags |= CODEC_FLAG_QSCALE;
3430             video_enc->global_quality=
3431                 st->quality = FF_QP2LAMBDA * video_qscale;
3432         }
3433
3434         if(intra_matrix)
3435             video_enc->intra_matrix = intra_matrix;
3436         if(inter_matrix)
3437             video_enc->inter_matrix = inter_matrix;
3438
3439         p= video_rc_override_string;
3440         for(i=0; p; i++){
3441             int start, end, q;
3442             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3443             if(e!=3){
3444                 fprintf(stderr, "error parsing rc_override\n");
3445                 ffmpeg_exit(1);
3446             }
3447             video_enc->rc_override=
3448                 av_realloc(video_enc->rc_override,
3449                            sizeof(RcOverride)*(i+1));
3450             video_enc->rc_override[i].start_frame= start;
3451             video_enc->rc_override[i].end_frame  = end;
3452             if(q>0){
3453                 video_enc->rc_override[i].qscale= q;
3454                 video_enc->rc_override[i].quality_factor= 1.0;
3455             }
3456             else{
3457                 video_enc->rc_override[i].qscale= 0;
3458                 video_enc->rc_override[i].quality_factor= -q/100.0;
3459             }
3460             p= strchr(p, '/');
3461             if(p) p++;
3462         }
3463         video_enc->rc_override_count=i;
3464         if (!video_enc->rc_initial_buffer_occupancy)
3465             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3466         video_enc->me_threshold= me_threshold;
3467         video_enc->intra_dc_precision= intra_dc_precision - 8;
3468
3469         if (do_psnr)
3470             video_enc->flags|= CODEC_FLAG_PSNR;
3471
3472         /* two pass mode */
3473         if (do_pass) {
3474             if (do_pass == 1) {
3475                 video_enc->flags |= CODEC_FLAG_PASS1;
3476             } else {
3477                 video_enc->flags |= CODEC_FLAG_PASS2;
3478             }
3479         }
3480
3481         if (forced_key_frames)
3482             parse_forced_key_frames(forced_key_frames, ost, video_enc);
3483     }
3484     if (video_language) {
3485         av_metadata_set2(&st->metadata, "language", video_language, 0);
3486         av_freep(&video_language);
3487     }
3488
3489     /* reset some key parameters */
3490     video_disable = 0;
3491     av_freep(&video_codec_name);
3492     av_freep(&forced_key_frames);
3493     video_stream_copy = 0;
3494     frame_pix_fmt = PIX_FMT_NONE;
3495 }
3496
3497 static void new_audio_stream(AVFormatContext *oc, int file_idx)
3498 {
3499     AVStream *st;
3500     AVOutputStream *ost;
3501     AVCodec *codec= NULL;
3502     AVCodecContext *audio_enc;
3503     enum CodecID codec_id = CODEC_ID_NONE;
3504
3505     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3506     if (!st) {
3507         fprintf(stderr, "Could not alloc stream\n");
3508         ffmpeg_exit(1);
3509     }
3510     ost = new_output_stream(oc, file_idx);
3511
3512     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3513     if(!audio_stream_copy){
3514         if (audio_codec_name) {
3515             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3516                                          avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
3517             codec = avcodec_find_encoder_by_name(audio_codec_name);
3518             output_codecs[nb_output_codecs-1] = codec;
3519         } else {
3520             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3521             codec = avcodec_find_encoder(codec_id);
3522         }
3523     }
3524
3525     avcodec_get_context_defaults3(st->codec, codec);
3526
3527     ost->bitstream_filters = audio_bitstream_filters;
3528     audio_bitstream_filters= NULL;
3529
3530     st->codec->thread_count= thread_count;
3531
3532     audio_enc = st->codec;
3533     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3534
3535     if(audio_codec_tag)
3536         audio_enc->codec_tag= audio_codec_tag;
3537
3538     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3539         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3540         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3541     }
3542     if (audio_stream_copy) {
3543         st->stream_copy = 1;
3544         audio_enc->channels = audio_channels;
3545         audio_enc->sample_rate = audio_sample_rate;
3546     } else {
3547         audio_enc->codec_id = codec_id;
3548         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3549
3550         if (audio_qscale > QSCALE_NONE) {
3551             audio_enc->flags |= CODEC_FLAG_QSCALE;
3552             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3553         }
3554         audio_enc->channels = audio_channels;
3555         audio_enc->sample_fmt = audio_sample_fmt;
3556         audio_enc->sample_rate = audio_sample_rate;
3557         audio_enc->channel_layout = channel_layout;
3558         if (av_get_channel_layout_nb_channels(channel_layout) != audio_channels)
3559             audio_enc->channel_layout = 0;
3560         choose_sample_fmt(st, codec);
3561         choose_sample_rate(st, codec);
3562     }
3563     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3564     if (audio_language) {
3565         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3566         av_freep(&audio_language);
3567     }
3568
3569     /* reset some key parameters */
3570     audio_disable = 0;
3571     av_freep(&audio_codec_name);
3572     audio_stream_copy = 0;
3573 }
3574
3575 static void new_data_stream(AVFormatContext *oc, int file_idx)
3576 {
3577     AVStream *st;
3578     AVOutputStream *ost;
3579     AVCodec *codec=NULL;
3580     AVCodecContext *data_enc;
3581
3582     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3583     if (!st) {
3584         fprintf(stderr, "Could not alloc stream\n");
3585         ffmpeg_exit(1);
3586     }
3587     ost = new_output_stream(oc, file_idx);
3588     data_enc = st->codec;
3589     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3590     if (!data_stream_copy) {
3591         fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3592         ffmpeg_exit(1);
3593     }
3594     avcodec_get_context_defaults3(st->codec, codec);
3595
3596     data_enc->codec_type = AVMEDIA_TYPE_DATA;
3597
3598     if (data_codec_tag)
3599         data_enc->codec_tag= data_codec_tag;
3600
3601     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3602         data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3603         avcodec_opts[AVMEDIA_TYPE_DATA]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3604     }
3605     if (data_stream_copy) {
3606         st->stream_copy = 1;
3607     }
3608
3609     data_disable = 0;
3610     av_freep(&data_codec_name);
3611     data_stream_copy = 0;
3612 }
3613
3614 static void new_subtitle_stream(AVFormatContext *oc, int file_idx)
3615 {
3616     AVStream *st;
3617     AVOutputStream *ost;
3618     AVCodec *codec=NULL;
3619     AVCodecContext *subtitle_enc;
3620     enum CodecID codec_id = CODEC_ID_NONE;
3621
3622     st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3623     if (!st) {
3624         fprintf(stderr, "Could not alloc stream\n");
3625         ffmpeg_exit(1);
3626     }
3627     ost = new_output_stream(oc, file_idx);
3628     subtitle_enc = st->codec;
3629     output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
3630     if(!subtitle_stream_copy){
3631         if (subtitle_codec_name) {
3632             codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3633                                          avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3634             codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
3635         } else {
3636             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
3637             codec = avcodec_find_encoder(codec_id);
3638         }
3639     }
3640     avcodec_get_context_defaults3(st->codec, codec);
3641
3642     ost->bitstream_filters = subtitle_bitstream_filters;
3643     subtitle_bitstream_filters= NULL;
3644
3645     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3646
3647     if(subtitle_codec_tag)
3648         subtitle_enc->codec_tag= subtitle_codec_tag;
3649
3650     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3651         subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3652         avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->flags |= CODEC_FLAG_GLOBAL_HEADER;
3653     }
3654     if (subtitle_stream_copy) {
3655         st->stream_copy = 1;
3656     } else {
3657         subtitle_enc->codec_id = codec_id;
3658         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
3659     }
3660
3661     if (subtitle_language) {
3662         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3663         av_freep(&subtitle_language);
3664     }
3665
3666     subtitle_disable = 0;
3667     av_freep(&subtitle_codec_name);
3668     subtitle_stream_copy = 0;
3669 }
3670