remove unused field
[ffmpeg.git] / ffmpeg.c
1 /*
2  * FFmpeg main
3  * Copyright (c) 2000-2003 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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 "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/libm.h"
44 #include "libavformat/os_support.h"
45
46 #if CONFIG_AVFILTER
47 # include "libavfilter/avfilter.h"
48 # include "libavfilter/avfiltergraph.h"
49 # include "libavfilter/graphparser.h"
50 # include "libavfilter/vsrc_buffer.h"
51 #endif
52
53 #if HAVE_SYS_RESOURCE_H
54 #include <sys/types.h>
55 #include <sys/time.h>
56 #include <sys/resource.h>
57 #elif HAVE_GETPROCESSTIMES
58 #include <windows.h>
59 #endif
60 #if HAVE_GETPROCESSMEMORYINFO
61 #include <windows.h>
62 #include <psapi.h>
63 #endif
64
65 #if HAVE_SYS_SELECT_H
66 #include <sys/select.h>
67 #endif
68
69 #if HAVE_TERMIOS_H
70 #include <fcntl.h>
71 #include <sys/ioctl.h>
72 #include <sys/time.h>
73 #include <termios.h>
74 #elif HAVE_CONIO_H
75 #include <conio.h>
76 #endif
77 #include <time.h>
78
79 #include "cmdutils.h"
80
81 #undef NDEBUG
82 #include <assert.h>
83
84 const char program_name[] = "FFmpeg";
85 const int program_birth_year = 2000;
86
87 /* select an input stream for an output stream */
88 typedef struct AVStreamMap {
89     int file_index;
90     int stream_index;
91     int sync_file_index;
92     int sync_stream_index;
93 } AVStreamMap;
94
95 /** select an input file for an output file */
96 typedef struct AVMetaDataMap {
97     int out_file;
98     int in_file;
99 } AVMetaDataMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104
105 static const char *last_asked_format = NULL;
106 static AVFormatContext *input_files[MAX_FILES];
107 static int64_t input_files_ts_offset[MAX_FILES];
108 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
109 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
110 static int nb_input_files = 0;
111 static int nb_icodecs;
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
115 static int nb_output_files = 0;
116 static int nb_ocodecs;
117
118 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
119 static int nb_stream_maps;
120
121 static AVMetaDataMap meta_data_maps[MAX_FILES];
122 static int nb_meta_data_maps;
123
124 static int frame_width  = 0;
125 static int frame_height = 0;
126 static float frame_aspect_ratio = 0;
127 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
128 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
129 static int frame_topBand  = 0;
130 static int frame_bottomBand = 0;
131 static int frame_leftBand  = 0;
132 static int frame_rightBand = 0;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static int video_codec_tag = 0;
143 static char *video_language = NULL;
144 static int same_quality = 0;
145 static int do_deinterlace = 0;
146 static int top_field_first = -1;
147 static int me_threshold = 0;
148 static int intra_dc_precision = 8;
149 static int loop_input = 0;
150 static int loop_output = AVFMT_NOOUTPUTLOOP;
151 static int qp_hist = 0;
152 #if CONFIG_AVFILTER
153 static char *vfilters = NULL;
154 AVFilterGraph *graph = NULL;
155 #endif
156
157 static int intra_only = 0;
158 static int audio_sample_rate = 44100;
159 static int64_t channel_layout = 0;
160 #define QSCALE_NONE -99999
161 static float audio_qscale = QSCALE_NONE;
162 static int audio_disable = 0;
163 static int audio_channels = 1;
164 static char  *audio_codec_name = NULL;
165 static int audio_codec_tag = 0;
166 static char *audio_language = NULL;
167
168 static int subtitle_disable = 0;
169 static char *subtitle_codec_name = NULL;
170 static char *subtitle_language = NULL;
171 static int subtitle_codec_tag = 0;
172
173 static float mux_preload= 0.5;
174 static float mux_max_delay= 0.7;
175
176 static int64_t recording_time = INT64_MAX;
177 static int64_t start_time = 0;
178 static int64_t rec_timestamp = 0;
179 static int64_t input_ts_offset = 0;
180 static int file_overwrite = 0;
181 static int metadata_count;
182 static AVMetadataTag *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static char *pass_logfilename_prefix = NULL;
189 static int audio_stream_copy = 0;
190 static int video_stream_copy = 0;
191 static int subtitle_stream_copy = 0;
192 static int video_sync_method= -1;
193 static int audio_sync_method= 0;
194 static float audio_drift_threshold= 0.1;
195 static int copy_ts= 0;
196 static int opt_shortest = 0;
197 static int video_global_header = 0;
198 static char *vstats_filename;
199 static FILE *vstats_file;
200 static int opt_programid = 0;
201 static int copy_initial_nonkeyframes = 0;
202
203 static int rate_emu = 0;
204
205 static int  video_channel = 0;
206 static char *video_standard;
207
208 static int audio_volume = 256;
209
210 static int exit_on_error = 0;
211 static int using_stdin = 0;
212 static int verbose = 1;
213 static int thread_count= 1;
214 static int q_pressed = 0;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223
224 static int pgmyuv_compatibility_hack=0;
225 static float dts_delta_threshold = 10;
226
227 static unsigned int sws_flags = SWS_BICUBIC;
228
229 static int64_t timer_start;
230
231 static uint8_t *audio_buf;
232 static uint8_t *audio_out;
233 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
234
235 static short *samples;
236
237 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
239 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
240 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
241
242 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
243
244 struct AVInputStream;
245
246 typedef struct AVOutputStream {
247     int file_index;          /* file index */
248     int index;               /* stream index in the output file */
249     int source_index;        /* AVInputStream index */
250     AVStream *st;            /* stream in the output file */
251     int encoding_needed;     /* true if encoding needed for this stream */
252     int frame_number;
253     /* input pts and corresponding output pts
254        for A/V sync */
255     //double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
256     struct AVInputStream *sync_ist; /* input stream to sync against */
257     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
258     /* video only */
259     int video_resample;
260     AVFrame pict_tmp;      /* temporary image for resampling */
261     struct SwsContext *img_resample_ctx; /* for image resampling */
262     int resample_height;
263     int resample_width;
264     int resample_pix_fmt;
265
266     /* full frame size of first frame */
267     int original_height;
268     int original_width;
269
270     /* cropping area sizes */
271     int video_crop;
272     int topBand;
273     int bottomBand;
274     int leftBand;
275     int rightBand;
276
277     /* cropping area of first frame */
278     int original_topBand;
279     int original_bottomBand;
280     int original_leftBand;
281     int original_rightBand;
282
283     /* audio only */
284     int audio_resample;
285     ReSampleContext *resample; /* for audio resampling */
286     int reformat_pair;
287     AVAudioConvert *reformat_ctx;
288     AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
289     FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293     int file_index;
294     int index;
295     AVStream *st;
296     int discard;             /* true if stream data should be discarded */
297     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
298     int64_t sample_index;      /* current sample */
299
300     int64_t       start;     /* time when read started */
301     int64_t       next_pts;  /* synthetic pts for cases where pkt.pts
302                                 is not defined */
303     int64_t       pts;       /* current pts */
304     int is_start;            /* is 1 at the start and after a discontinuity */
305     int showed_multi_packet_warning;
306     int is_past_recording_time;
307 #if CONFIG_AVFILTER
308     AVFilterContext *out_video_filter;
309     AVFilterContext *input_video_filter;
310     AVFrame *filter_frame;
311     int has_filter_frame;
312     AVFilterPicRef *picref;
313 #endif
314 } AVInputStream;
315
316 typedef struct AVInputFile {
317     int eof_reached;      /* true if eof reached */
318     int ist_index;        /* index of first stream in ist_table */
319     int buffer_size;      /* current total buffer size */
320     int nb_streams;       /* nb streams we are aware of */
321 } AVInputFile;
322
323 #if HAVE_TERMIOS_H
324
325 /* init terminal so that we can grab keys */
326 static struct termios oldtty;
327 #endif
328
329 #if CONFIG_AVFILTER
330 typedef struct {
331     int pix_fmt;
332 } FilterOutPriv;
333
334
335 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
336 {
337     FilterOutPriv *priv = ctx->priv;
338
339     if(!opaque) return -1;
340
341     priv->pix_fmt = *((int *)opaque);
342
343     return 0;
344 }
345
346 static void output_end_frame(AVFilterLink *link)
347 {
348 }
349
350 static int output_query_formats(AVFilterContext *ctx)
351 {
352     FilterOutPriv *priv = ctx->priv;
353     enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
354
355     avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
356     return 0;
357 }
358
359 static int get_filtered_video_pic(AVFilterContext *ctx,
360                                   AVFilterPicRef **picref, AVFrame *pic2,
361                                   uint64_t *pts)
362 {
363     AVFilterPicRef *pic;
364
365     if(avfilter_request_frame(ctx->inputs[0]))
366         return -1;
367     if(!(pic = ctx->inputs[0]->cur_pic))
368         return -1;
369     *picref = pic;
370     ctx->inputs[0]->cur_pic = NULL;
371
372     *pts          = pic->pts;
373
374     memcpy(pic2->data,     pic->data,     sizeof(pic->data));
375     memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
376     pic2->interlaced_frame = pic->interlaced;
377     pic2->top_field_first  = pic->top_field_first;
378
379     return 1;
380 }
381
382 static AVFilter output_filter =
383 {
384     .name      = "ffmpeg_output",
385
386     .priv_size = sizeof(FilterOutPriv),
387     .init      = output_init,
388
389     .query_formats = output_query_formats,
390
391     .inputs    = (AVFilterPad[]) {{ .name          = "default",
392                                     .type          = AVMEDIA_TYPE_VIDEO,
393                                     .end_frame     = output_end_frame,
394                                     .min_perms     = AV_PERM_READ, },
395                                   { .name = NULL }},
396     .outputs   = (AVFilterPad[]) {{ .name = NULL }},
397 };
398
399 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
400 {
401     AVFilterContext *last_filter, *filter;
402     /** filter graph containing all filters including input & output */
403     AVCodecContext *codec = ost->st->codec;
404     AVCodecContext *icodec = ist->st->codec;
405     char args[255];
406
407     graph = av_mallocz(sizeof(AVFilterGraph));
408
409     if (!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
410         return -1;
411     if (!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
412         return -1;
413
414     snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
415              ist->st->codec->height, ist->st->codec->pix_fmt);
416     if (avfilter_init_filter(ist->input_video_filter, args, NULL))
417         return -1;
418     if (avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
419         return -1;
420
421     /* add input and output filters to the overall graph */
422     avfilter_graph_add_filter(graph, ist->input_video_filter);
423     avfilter_graph_add_filter(graph, ist->out_video_filter);
424
425     last_filter = ist->input_video_filter;
426
427     if (ost->video_crop) {
428         snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
429                  codec->width,
430                  codec->height);
431         filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
432         if (!filter)
433             return -1;
434         if (avfilter_init_filter(filter, args, NULL))
435             return -1;
436         if (avfilter_link(last_filter, 0, filter, 0))
437             return -1;
438         last_filter = filter;
439         avfilter_graph_add_filter(graph, last_filter);
440     }
441
442     if((codec->width !=
443         icodec->width - (frame_leftBand + frame_rightBand)) ||
444        (codec->height != icodec->height - (frame_topBand  + frame_bottomBand))) {
445         snprintf(args, 255, "%d:%d:flags=0x%X",
446                  codec->width,
447                  codec->height,
448                  (int)av_get_int(sws_opts, "sws_flags", NULL));
449         filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
450         if (!filter)
451             return -1;
452         if (avfilter_init_filter(filter, args, NULL))
453             return -1;
454         if (avfilter_link(last_filter, 0, filter, 0))
455             return -1;
456         last_filter = filter;
457         avfilter_graph_add_filter(graph, last_filter);
458     }
459
460     if (vfilters) {
461         AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
462         AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
463
464         outputs->name    = av_strdup("in");
465         outputs->filter  = last_filter;
466         outputs->pad_idx = 0;
467         outputs->next    = NULL;
468
469         inputs->name    = av_strdup("out");
470         inputs->filter  = ist->out_video_filter;
471         inputs->pad_idx = 0;
472         inputs->next    = NULL;
473
474         if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
475             return -1;
476         av_freep(&vfilters);
477     } else {
478         if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
479             return -1;
480     }
481
482     snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
483     graph->scale_sws_opts = av_strdup(args);
484
485     /* configure all the filter links */
486     if (avfilter_graph_check_validity(graph, NULL))
487         return -1;
488     if (avfilter_graph_config_formats(graph, NULL))
489         return -1;
490     if (avfilter_graph_config_links(graph, NULL))
491         return -1;
492
493     codec->width = ist->out_video_filter->inputs[0]->w;
494     codec->height = ist->out_video_filter->inputs[0]->h;
495
496     return 0;
497 }
498 #endif /* CONFIG_AVFILTER */
499
500 static void term_exit(void)
501 {
502 #if HAVE_TERMIOS_H
503     tcsetattr (0, TCSANOW, &oldtty);
504 #endif
505 }
506
507 static volatile int received_sigterm = 0;
508
509 static void
510 sigterm_handler(int sig)
511 {
512     received_sigterm = sig;
513     term_exit();
514 }
515
516 static void term_init(void)
517 {
518 #if HAVE_TERMIOS_H
519     struct termios tty;
520
521     tcgetattr (0, &tty);
522     oldtty = tty;
523     atexit(term_exit);
524
525     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
526                           |INLCR|IGNCR|ICRNL|IXON);
527     tty.c_oflag |= OPOST;
528     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
529     tty.c_cflag &= ~(CSIZE|PARENB);
530     tty.c_cflag |= CS8;
531     tty.c_cc[VMIN] = 1;
532     tty.c_cc[VTIME] = 0;
533
534     tcsetattr (0, TCSANOW, &tty);
535     signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
536 #endif
537
538     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).  */
539     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
540 #ifdef SIGXCPU
541     signal(SIGXCPU, sigterm_handler);
542 #endif
543
544 #if CONFIG_BEOS_NETSERVER
545     fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
546 #endif
547 }
548
549 /* read a key without blocking */
550 static int read_key(void)
551 {
552 #if HAVE_TERMIOS_H
553     int n = 1;
554     unsigned char ch;
555 #if !CONFIG_BEOS_NETSERVER
556     struct timeval tv;
557     fd_set rfds;
558
559     FD_ZERO(&rfds);
560     FD_SET(0, &rfds);
561     tv.tv_sec = 0;
562     tv.tv_usec = 0;
563     n = select(1, &rfds, NULL, NULL, &tv);
564 #endif
565     if (n > 0) {
566         n = read(0, &ch, 1);
567         if (n == 1)
568             return ch;
569
570         return n;
571     }
572 #elif HAVE_CONIO_H
573     if(kbhit())
574         return(getch());
575 #endif
576     return -1;
577 }
578
579 static int decode_interrupt_cb(void)
580 {
581     return q_pressed || (q_pressed = read_key() == 'q');
582 }
583
584 static int av_exit(int ret)
585 {
586     int i;
587
588     /* close files */
589     for(i=0;i<nb_output_files;i++) {
590         /* maybe av_close_output_file ??? */
591         AVFormatContext *s = output_files[i];
592         int j;
593         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
594             url_fclose(s->pb);
595         for(j=0;j<s->nb_streams;j++) {
596             av_metadata_free(&s->streams[j]->metadata);
597             av_free(s->streams[j]->codec);
598             av_free(s->streams[j]);
599         }
600         for(j=0;j<s->nb_programs;j++) {
601             av_metadata_free(&s->programs[j]->metadata);
602         }
603         for(j=0;j<s->nb_chapters;j++) {
604             av_metadata_free(&s->chapters[j]->metadata);
605         }
606         av_metadata_free(&s->metadata);
607         av_free(s);
608     }
609     for(i=0;i<nb_input_files;i++)
610         av_close_input_file(input_files[i]);
611
612     av_free(intra_matrix);
613     av_free(inter_matrix);
614
615     if (vstats_file)
616         fclose(vstats_file);
617     av_free(vstats_filename);
618
619     av_free(opt_names);
620
621     av_free(video_codec_name);
622     av_free(audio_codec_name);
623     av_free(subtitle_codec_name);
624
625     av_free(video_standard);
626
627 #if CONFIG_POWERPC_PERF
628     void powerpc_display_perf_report(void);
629     powerpc_display_perf_report();
630 #endif /* CONFIG_POWERPC_PERF */
631
632     for (i=0;i<AVMEDIA_TYPE_NB;i++)
633         av_free(avcodec_opts[i]);
634     av_free(avformat_opts);
635     av_free(sws_opts);
636     av_free(audio_buf);
637     av_free(audio_out);
638     allocated_audio_buf_size= allocated_audio_out_size= 0;
639     av_free(samples);
640
641 #if CONFIG_AVFILTER
642     avfilter_uninit();
643 #endif
644
645     if (received_sigterm) {
646         fprintf(stderr,
647             "Received signal %d: terminating.\n",
648             (int) received_sigterm);
649         exit (255);
650     }
651
652     exit(ret); /* not all OS-es handle main() return value */
653     return ret;
654 }
655
656 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
657 {
658     if(codec && codec->sample_fmts){
659         const enum SampleFormat *p= codec->sample_fmts;
660         for(; *p!=-1; p++){
661             if(*p == st->codec->sample_fmt)
662                 break;
663         }
664         if(*p == -1)
665             st->codec->sample_fmt = codec->sample_fmts[0];
666     }
667 }
668
669 static void choose_sample_rate(AVStream *st, AVCodec *codec)
670 {
671     if(codec && codec->supported_samplerates){
672         const int *p= codec->supported_samplerates;
673         int best;
674         int best_dist=INT_MAX;
675         for(; *p; p++){
676             int dist= abs(st->codec->sample_rate - *p);
677             if(dist < best_dist){
678                 best_dist= dist;
679                 best= *p;
680             }
681         }
682         if(best_dist){
683             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
684         }
685         st->codec->sample_rate= best;
686     }
687 }
688
689 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
690 {
691     if(codec && codec->pix_fmts){
692         const enum PixelFormat *p= codec->pix_fmts;
693         for(; *p!=-1; p++){
694             if(*p == st->codec->pix_fmt)
695                 break;
696         }
697         if(*p == -1
698            && !(   st->codec->codec_id==CODEC_ID_MJPEG
699                 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
700                 && (   st->codec->pix_fmt == PIX_FMT_YUV420P
701                     || st->codec->pix_fmt == PIX_FMT_YUV422P)))
702             st->codec->pix_fmt = codec->pix_fmts[0];
703     }
704 }
705
706 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
707 {
708     int i, err;
709     AVFormatContext *ic;
710     int nopts = 0;
711
712     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
713     if (err < 0)
714         return err;
715     /* copy stream format */
716     s->nb_streams = ic->nb_streams;
717     for(i=0;i<ic->nb_streams;i++) {
718         AVStream *st;
719         AVCodec *codec;
720
721         // FIXME: a more elegant solution is needed
722         st = av_mallocz(sizeof(AVStream));
723         memcpy(st, ic->streams[i], sizeof(AVStream));
724         st->codec = avcodec_alloc_context();
725         if (!st->codec) {
726             print_error(filename, AVERROR(ENOMEM));
727             av_exit(1);
728         }
729         avcodec_copy_context(st->codec, ic->streams[i]->codec);
730         s->streams[i] = st;
731
732         codec = avcodec_find_encoder(st->codec->codec_id);
733         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
734             if (audio_stream_copy) {
735                 st->stream_copy = 1;
736             } else
737                 choose_sample_fmt(st, codec);
738         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
739             if (video_stream_copy) {
740                 st->stream_copy = 1;
741             } else
742                 choose_pixel_fmt(st, codec);
743         }
744
745         if(!st->codec->thread_count)
746             st->codec->thread_count = 1;
747         if(st->codec->thread_count>1)
748             avcodec_thread_init(st->codec, st->codec->thread_count);
749
750         if(st->codec->flags & CODEC_FLAG_BITEXACT)
751             nopts = 1;
752     }
753
754     if (!nopts)
755         s->timestamp = av_gettime();
756
757     av_close_input_file(ic);
758     return 0;
759 }
760
761 static double
762 get_sync_ipts(const AVOutputStream *ost)
763 {
764     const AVInputStream *ist = ost->sync_ist;
765     return (double)(ist->pts - start_time)/AV_TIME_BASE;
766 }
767
768 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
769     int ret;
770
771     while(bsfc){
772         AVPacket new_pkt= *pkt;
773         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
774                                           &new_pkt.data, &new_pkt.size,
775                                           pkt->data, pkt->size,
776                                           pkt->flags & AV_PKT_FLAG_KEY);
777         if(a>0){
778             av_free_packet(pkt);
779             new_pkt.destruct= av_destruct_packet;
780         } else if(a<0){
781             fprintf(stderr, "%s failed for stream %d, codec %s",
782                     bsfc->filter->name, pkt->stream_index,
783                     avctx->codec ? avctx->codec->name : "copy");
784             print_error("", a);
785             if (exit_on_error)
786                 av_exit(1);
787         }
788         *pkt= new_pkt;
789
790         bsfc= bsfc->next;
791     }
792
793     ret= av_interleaved_write_frame(s, pkt);
794     if(ret < 0){
795         print_error("av_interleaved_write_frame()", ret);
796         av_exit(1);
797     }
798 }
799
800 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
801
802 static void do_audio_out(AVFormatContext *s,
803                          AVOutputStream *ost,
804                          AVInputStream *ist,
805                          unsigned char *buf, int size)
806 {
807     uint8_t *buftmp;
808     int64_t audio_out_size, audio_buf_size;
809     int64_t allocated_for_size= size;
810
811     int size_out, frame_bytes, ret;
812     AVCodecContext *enc= ost->st->codec;
813     AVCodecContext *dec= ist->st->codec;
814     int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
815     int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
816     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
817
818 need_realloc:
819     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
820     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
821     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
822     audio_buf_size*= osize*enc->channels;
823
824     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
825     if(coded_bps > 8*osize)
826         audio_out_size= audio_out_size * coded_bps / (8*osize);
827     audio_out_size += FF_MIN_BUFFER_SIZE;
828
829     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
830         fprintf(stderr, "Buffer sizes too large\n");
831         av_exit(1);
832     }
833
834     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
835     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
836     if (!audio_buf || !audio_out){
837         fprintf(stderr, "Out of memory in do_audio_out\n");
838         av_exit(1);
839     }
840
841     if (enc->channels != dec->channels)
842         ost->audio_resample = 1;
843
844     if (ost->audio_resample && !ost->resample) {
845         if (dec->sample_fmt != SAMPLE_FMT_S16)
846             fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
847         ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
848                                                enc->sample_rate, dec->sample_rate,
849                                                enc->sample_fmt,  dec->sample_fmt,
850                                                16, 10, 0, 0.8);
851         if (!ost->resample) {
852             fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
853                     dec->channels, dec->sample_rate,
854                     enc->channels, enc->sample_rate);
855             av_exit(1);
856         }
857     }
858
859 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
860     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
861         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
862         if (ost->reformat_ctx)
863             av_audio_convert_free(ost->reformat_ctx);
864         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
865                                                    dec->sample_fmt, 1, NULL, 0);
866         if (!ost->reformat_ctx) {
867             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
868                 avcodec_get_sample_fmt_name(dec->sample_fmt),
869                 avcodec_get_sample_fmt_name(enc->sample_fmt));
870             av_exit(1);
871         }
872         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
873     }
874
875     if(audio_sync_method){
876         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
877                 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
878         double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
879         int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
880
881         //FIXME resample delay
882         if(fabs(delta) > 50){
883             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
884                 if(byte_delta < 0){
885                     byte_delta= FFMAX(byte_delta, -size);
886                     size += byte_delta;
887                     buf  -= byte_delta;
888                     if(verbose > 2)
889                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
890                     if(!size)
891                         return;
892                     ist->is_start=0;
893                 }else{
894                     static uint8_t *input_tmp= NULL;
895                     input_tmp= av_realloc(input_tmp, byte_delta + size);
896
897                     if(byte_delta > allocated_for_size - size){
898                         allocated_for_size= byte_delta + (int64_t)size;
899                         goto need_realloc;
900                     }
901                     ist->is_start=0;
902
903                     memset(input_tmp, 0, byte_delta);
904                     memcpy(input_tmp + byte_delta, buf, size);
905                     buf= input_tmp;
906                     size += byte_delta;
907                     if(verbose > 2)
908                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
909                 }
910             }else if(audio_sync_method>1){
911                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
912                 assert(ost->audio_resample);
913                 if(verbose > 2)
914                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
915 //                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));
916                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
917             }
918         }
919     }else
920         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
921                         - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
922
923     if (ost->audio_resample) {
924         buftmp = audio_buf;
925         size_out = audio_resample(ost->resample,
926                                   (short *)buftmp, (short *)buf,
927                                   size / (ist->st->codec->channels * isize));
928         size_out = size_out * enc->channels * osize;
929     } else {
930         buftmp = buf;
931         size_out = size;
932     }
933
934     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
935         const void *ibuf[6]= {buftmp};
936         void *obuf[6]= {audio_buf};
937         int istride[6]= {isize};
938         int ostride[6]= {osize};
939         int len= size_out/istride[0];
940         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
941             printf("av_audio_convert() failed\n");
942             if (exit_on_error)
943                 av_exit(1);
944             return;
945         }
946         buftmp = audio_buf;
947         size_out = len*osize;
948     }
949
950     /* now encode as many frames as possible */
951     if (enc->frame_size > 1) {
952         /* output resampled raw samples */
953         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
954             fprintf(stderr, "av_fifo_realloc2() failed\n");
955             av_exit(1);
956         }
957         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
958
959         frame_bytes = enc->frame_size * osize * enc->channels;
960
961         while (av_fifo_size(ost->fifo) >= frame_bytes) {
962             AVPacket pkt;
963             av_init_packet(&pkt);
964
965             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
966
967             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
968
969             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
970                                        (short *)audio_buf);
971             if (ret < 0) {
972                 fprintf(stderr, "Audio encoding failed\n");
973                 av_exit(1);
974             }
975             audio_size += ret;
976             pkt.stream_index= ost->index;
977             pkt.data= audio_out;
978             pkt.size= ret;
979             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
980                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
981             pkt.flags |= AV_PKT_FLAG_KEY;
982             write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
983
984             ost->sync_opts += enc->frame_size;
985         }
986     } else {
987         AVPacket pkt;
988         av_init_packet(&pkt);
989
990         ost->sync_opts += size_out / (osize * enc->channels);
991
992         /* output a pcm frame */
993         /* determine the size of the coded buffer */
994         size_out /= osize;
995         if (coded_bps)
996             size_out = size_out*coded_bps/8;
997
998         if(size_out > audio_out_size){
999             fprintf(stderr, "Internal error, buffer size too small\n");
1000             av_exit(1);
1001         }
1002
1003         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
1004         ret = avcodec_encode_audio(enc, audio_out, size_out,
1005                                    (short *)buftmp);
1006         if (ret < 0) {
1007             fprintf(stderr, "Audio encoding failed\n");
1008             av_exit(1);
1009         }
1010         audio_size += ret;
1011         pkt.stream_index= ost->index;
1012         pkt.data= audio_out;
1013         pkt.size= ret;
1014         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1015             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1016         pkt.flags |= AV_PKT_FLAG_KEY;
1017         write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1018     }
1019 }
1020
1021 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1022 {
1023     AVCodecContext *dec;
1024     AVPicture *picture2;
1025     AVPicture picture_tmp;
1026     uint8_t *buf = 0;
1027
1028     dec = ist->st->codec;
1029
1030     /* deinterlace : must be done before any resize */
1031     if (do_deinterlace) {
1032         int size;
1033
1034         /* create temporary picture */
1035         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1036         buf = av_malloc(size);
1037         if (!buf)
1038             return;
1039
1040         picture2 = &picture_tmp;
1041         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1042
1043         if(avpicture_deinterlace(picture2, picture,
1044                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1045             /* if error, do not deinterlace */
1046             fprintf(stderr, "Deinterlacing failed\n");
1047             av_free(buf);
1048             buf = NULL;
1049             picture2 = picture;
1050         }
1051     } else {
1052         picture2 = picture;
1053     }
1054
1055     if (picture != picture2)
1056         *picture = *picture2;
1057     *bufp = buf;
1058 }
1059
1060 /* we begin to correct av delay at this threshold */
1061 #define AV_DELAY_MAX 0.100
1062
1063 static void do_subtitle_out(AVFormatContext *s,
1064                             AVOutputStream *ost,
1065                             AVInputStream *ist,
1066                             AVSubtitle *sub,
1067                             int64_t pts)
1068 {
1069     static uint8_t *subtitle_out = NULL;
1070     int subtitle_out_max_size = 1024 * 1024;
1071     int subtitle_out_size, nb, i;
1072     AVCodecContext *enc;
1073     AVPacket pkt;
1074
1075     if (pts == AV_NOPTS_VALUE) {
1076         fprintf(stderr, "Subtitle packets must have a pts\n");
1077         if (exit_on_error)
1078             av_exit(1);
1079         return;
1080     }
1081
1082     enc = ost->st->codec;
1083
1084     if (!subtitle_out) {
1085         subtitle_out = av_malloc(subtitle_out_max_size);
1086     }
1087
1088     /* Note: DVB subtitle need one packet to draw them and one other
1089        packet to clear them */
1090     /* XXX: signal it in the codec context ? */
1091     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1092         nb = 2;
1093     else
1094         nb = 1;
1095
1096     for(i = 0; i < nb; i++) {
1097         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1098         // start_display_time is required to be 0
1099         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1100         sub->end_display_time -= sub->start_display_time;
1101         sub->start_display_time = 0;
1102         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1103                                                     subtitle_out_max_size, sub);
1104         if (subtitle_out_size < 0) {
1105             fprintf(stderr, "Subtitle encoding failed\n");
1106             av_exit(1);
1107         }
1108
1109         av_init_packet(&pkt);
1110         pkt.stream_index = ost->index;
1111         pkt.data = subtitle_out;
1112         pkt.size = subtitle_out_size;
1113         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1114         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1115             /* XXX: the pts correction is handled here. Maybe handling
1116                it in the codec would be better */
1117             if (i == 0)
1118                 pkt.pts += 90 * sub->start_display_time;
1119             else
1120                 pkt.pts += 90 * sub->end_display_time;
1121         }
1122         write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1123     }
1124 }
1125
1126 static int bit_buffer_size= 1024*256;
1127 static uint8_t *bit_buffer= NULL;
1128
1129 static void do_video_out(AVFormatContext *s,
1130                          AVOutputStream *ost,
1131                          AVInputStream *ist,
1132                          AVFrame *in_picture,
1133                          int *frame_size)
1134 {
1135     int nb_frames, i, ret;
1136 #if !CONFIG_AVFILTER
1137     int64_t topBand, bottomBand, leftBand, rightBand;
1138 #endif
1139     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1140     AVFrame picture_crop_temp, picture_pad_temp;
1141     AVCodecContext *enc, *dec;
1142     double sync_ipts;
1143
1144     avcodec_get_frame_defaults(&picture_crop_temp);
1145     avcodec_get_frame_defaults(&picture_pad_temp);
1146
1147     enc = ost->st->codec;
1148     dec = ist->st->codec;
1149
1150     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1151
1152     /* by default, we output a single frame */
1153     nb_frames = 1;
1154
1155     *frame_size = 0;
1156
1157     if(video_sync_method){
1158         double vdelta = sync_ipts - ost->sync_opts;
1159         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1160         if (vdelta < -1.1)
1161             nb_frames = 0;
1162         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1163             if(vdelta<=-0.6){
1164                 nb_frames=0;
1165             }else if(vdelta>0.6)
1166             ost->sync_opts= lrintf(sync_ipts);
1167         }else if (vdelta > 1.1)
1168             nb_frames = lrintf(vdelta);
1169 //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);
1170         if (nb_frames == 0){
1171             ++nb_frames_drop;
1172             if (verbose>2)
1173                 fprintf(stderr, "*** drop!\n");
1174         }else if (nb_frames > 1) {
1175             nb_frames_dup += nb_frames - 1;
1176             if (verbose>2)
1177                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1178         }
1179     }else
1180         ost->sync_opts= lrintf(sync_ipts);
1181
1182     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1183     if (nb_frames <= 0)
1184         return;
1185
1186 #if CONFIG_AVFILTER
1187     formatted_picture = in_picture;
1188 #else
1189     if (ost->video_crop) {
1190         if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1191             fprintf(stderr, "error cropping picture\n");
1192             if (exit_on_error)
1193                 av_exit(1);
1194             return;
1195         }
1196         formatted_picture = &picture_crop_temp;
1197     } else {
1198         formatted_picture = in_picture;
1199     }
1200 #endif
1201
1202     final_picture = formatted_picture;
1203     padding_src = formatted_picture;
1204     resampling_dst = &ost->pict_tmp;
1205
1206     if(    (ost->resample_height != (ist->st->codec->height - (ost->topBand  + ost->bottomBand)))
1207         || (ost->resample_width  != (ist->st->codec->width  - (ost->leftBand + ost->rightBand)))
1208         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1209
1210         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));
1211         if(!ost->video_resample)
1212             av_exit(1);
1213     }
1214
1215 #if !CONFIG_AVFILTER
1216     if (ost->video_resample) {
1217         padding_src = NULL;
1218         final_picture = &ost->pict_tmp;
1219         if(  (ost->resample_height != (ist->st->codec->height - (ost->topBand  + ost->bottomBand)))
1220           || (ost->resample_width  != (ist->st->codec->width  - (ost->leftBand + ost->rightBand)))
1221           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1222
1223             /* keep bands proportional to the frame size */
1224             topBand    = ((int64_t)ist->st->codec->height * ost->original_topBand    / ost->original_height) & ~1;
1225             bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1226             leftBand   = ((int64_t)ist->st->codec->width  * ost->original_leftBand   / ost->original_width)  & ~1;
1227             rightBand  = ((int64_t)ist->st->codec->width  * ost->original_rightBand  / ost->original_width)  & ~1;
1228
1229             /* sanity check to ensure no bad band sizes sneak in */
1230             assert(topBand    <= INT_MAX && topBand    >= 0);
1231             assert(bottomBand <= INT_MAX && bottomBand >= 0);
1232             assert(leftBand   <= INT_MAX && leftBand   >= 0);
1233             assert(rightBand  <= INT_MAX && rightBand  >= 0);
1234
1235             ost->topBand    = topBand;
1236             ost->bottomBand = bottomBand;
1237             ost->leftBand   = leftBand;
1238             ost->rightBand  = rightBand;
1239
1240             ost->resample_height = ist->st->codec->height - (ost->topBand  + ost->bottomBand);
1241             ost->resample_width  = ist->st->codec->width  - (ost->leftBand + ost->rightBand);
1242             ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1243
1244             /* initialize a new scaler context */
1245             sws_freeContext(ost->img_resample_ctx);
1246             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1247             ost->img_resample_ctx = sws_getContext(
1248                 ist->st->codec->width  - (ost->leftBand + ost->rightBand),
1249                 ist->st->codec->height - (ost->topBand  + ost->bottomBand),
1250                 ist->st->codec->pix_fmt,
1251                 ost->st->codec->width,
1252                 ost->st->codec->height,
1253                 ost->st->codec->pix_fmt,
1254                 sws_flags, NULL, NULL, NULL);
1255             if (ost->img_resample_ctx == NULL) {
1256                 fprintf(stderr, "Cannot get resampling context\n");
1257                 av_exit(1);
1258             }
1259         }
1260         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1261               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1262     }
1263 #endif
1264
1265     /* duplicates frame if needed */
1266     for(i=0;i<nb_frames;i++) {
1267         AVPacket pkt;
1268         av_init_packet(&pkt);
1269         pkt.stream_index= ost->index;
1270
1271         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1272             /* raw pictures are written as AVPicture structure to
1273                avoid any copies. We support temorarily the older
1274                method. */
1275             AVFrame* old_frame = enc->coded_frame;
1276             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1277             pkt.data= (uint8_t *)final_picture;
1278             pkt.size=  sizeof(AVPicture);
1279             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1280             pkt.flags |= AV_PKT_FLAG_KEY;
1281
1282             write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1283             enc->coded_frame = old_frame;
1284         } else {
1285             AVFrame big_picture;
1286
1287             big_picture= *final_picture;
1288             /* better than nothing: use input picture interlaced
1289                settings */
1290             big_picture.interlaced_frame = in_picture->interlaced_frame;
1291             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1292                 if(top_field_first == -1)
1293                     big_picture.top_field_first = in_picture->top_field_first;
1294                 else
1295                     big_picture.top_field_first = top_field_first;
1296             }
1297
1298             /* handles sameq here. This is not correct because it may
1299                not be a global option */
1300             if (same_quality) {
1301                 big_picture.quality = ist->st->quality;
1302             }else
1303                 big_picture.quality = ost->st->quality;
1304             if(!me_threshold)
1305                 big_picture.pict_type = 0;
1306 //            big_picture.pts = AV_NOPTS_VALUE;
1307             big_picture.pts= ost->sync_opts;
1308 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1309 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1310             ret = avcodec_encode_video(enc,
1311                                        bit_buffer, bit_buffer_size,
1312                                        &big_picture);
1313             if (ret < 0) {
1314                 fprintf(stderr, "Video encoding failed\n");
1315                 av_exit(1);
1316             }
1317
1318             if(ret>0){
1319                 pkt.data= bit_buffer;
1320                 pkt.size= ret;
1321                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1322                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1323 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1324    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1325    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1326
1327                 if(enc->coded_frame->key_frame)
1328                     pkt.flags |= AV_PKT_FLAG_KEY;
1329                 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1330                 *frame_size = ret;
1331                 video_size += ret;
1332                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1333                 //        enc->frame_number-1, ret, enc->pict_type);
1334                 /* if two pass, output log */
1335                 if (ost->logfile && enc->stats_out) {
1336                     fprintf(ost->logfile, "%s", enc->stats_out);
1337                 }
1338             }
1339         }
1340         ost->sync_opts++;
1341         ost->frame_number++;
1342     }
1343 }
1344
1345 static double psnr(double d){
1346     return -10.0*log(d)/log(10.0);
1347 }
1348
1349 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1350                            int frame_size)
1351 {
1352     AVCodecContext *enc;
1353     int frame_number;
1354     double ti1, bitrate, avg_bitrate;
1355
1356     /* this is executed just the first time do_video_stats is called */
1357     if (!vstats_file) {
1358         vstats_file = fopen(vstats_filename, "w");
1359         if (!vstats_file) {
1360             perror("fopen");
1361             av_exit(1);
1362         }
1363     }
1364
1365     enc = ost->st->codec;
1366     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1367         frame_number = ost->frame_number;
1368         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1369         if (enc->flags&CODEC_FLAG_PSNR)
1370             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1371
1372         fprintf(vstats_file,"f_size= %6d ", frame_size);
1373         /* compute pts value */
1374         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1375         if (ti1 < 0.01)
1376             ti1 = 0.01;
1377
1378         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1379         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1380         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1381             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1382         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1383     }
1384 }
1385
1386 static void print_report(AVFormatContext **output_files,
1387                          AVOutputStream **ost_table, int nb_ostreams,
1388                          int is_last_report)
1389 {
1390     char buf[1024];
1391     AVOutputStream *ost;
1392     AVFormatContext *oc;
1393     int64_t total_size;
1394     AVCodecContext *enc;
1395     int frame_number, vid, i;
1396     double bitrate, ti1, pts;
1397     static int64_t last_time = -1;
1398     static int qp_histogram[52];
1399
1400     if (!is_last_report) {
1401         int64_t cur_time;
1402         /* display the report every 0.5 seconds */
1403         cur_time = av_gettime();
1404         if (last_time == -1) {
1405             last_time = cur_time;
1406             return;
1407         }
1408         if ((cur_time - last_time) < 500000)
1409             return;
1410         last_time = cur_time;
1411     }
1412
1413
1414     oc = output_files[0];
1415
1416     total_size = url_fsize(oc->pb);
1417     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1418         total_size= url_ftell(oc->pb);
1419
1420     buf[0] = '\0';
1421     ti1 = 1e10;
1422     vid = 0;
1423     for(i=0;i<nb_ostreams;i++) {
1424         ost = ost_table[i];
1425         enc = ost->st->codec;
1426         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1427             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1428                      !ost->st->stream_copy ?
1429                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1430         }
1431         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1432             float t = (av_gettime()-timer_start) / 1000000.0;
1433
1434             frame_number = ost->frame_number;
1435             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1436                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1437                      !ost->st->stream_copy ?
1438                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1439             if(is_last_report)
1440                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1441             if(qp_hist){
1442                 int j;
1443                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1444                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1445                     qp_histogram[qp]++;
1446                 for(j=0; j<32; j++)
1447                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1448             }
1449             if (enc->flags&CODEC_FLAG_PSNR){
1450                 int j;
1451                 double error, error_sum=0;
1452                 double scale, scale_sum=0;
1453                 char type[3]= {'Y','U','V'};
1454                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1455                 for(j=0; j<3; j++){
1456                     if(is_last_report){
1457                         error= enc->error[j];
1458                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1459                     }else{
1460                         error= enc->coded_frame->error[j];
1461                         scale= enc->width*enc->height*255.0*255.0;
1462                     }
1463                     if(j) scale/=4;
1464                     error_sum += error;
1465                     scale_sum += scale;
1466                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1467                 }
1468                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1469             }
1470             vid = 1;
1471         }
1472         /* compute min output value */
1473         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1474         if ((pts < ti1) && (pts > 0))
1475             ti1 = pts;
1476     }
1477     if (ti1 < 0.01)
1478         ti1 = 0.01;
1479
1480     if (verbose || is_last_report) {
1481         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1482
1483         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1484             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1485             (double)total_size / 1024, ti1, bitrate);
1486
1487         if (nb_frames_dup || nb_frames_drop)
1488           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1489                   nb_frames_dup, nb_frames_drop);
1490
1491         if (verbose >= 0)
1492             fprintf(stderr, "%s    \r", buf);
1493
1494         fflush(stderr);
1495     }
1496
1497     if (is_last_report && verbose >= 0){
1498         int64_t raw= audio_size + video_size + extra_size;
1499         fprintf(stderr, "\n");
1500         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1501                 video_size/1024.0,
1502                 audio_size/1024.0,
1503                 extra_size/1024.0,
1504                 100.0*(total_size - raw)/raw
1505         );
1506     }
1507 }
1508
1509 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1510 static int output_packet(AVInputStream *ist, int ist_index,
1511                          AVOutputStream **ost_table, int nb_ostreams,
1512                          const AVPacket *pkt)
1513 {
1514     AVFormatContext *os;
1515     AVOutputStream *ost;
1516     int ret, i;
1517     int got_picture;
1518     AVFrame picture;
1519     void *buffer_to_free;
1520     static unsigned int samples_size= 0;
1521     AVSubtitle subtitle, *subtitle_to_free;
1522     int got_subtitle;
1523 #if CONFIG_AVFILTER
1524     int frame_available;
1525 #endif
1526
1527     AVPacket avpkt;
1528     int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1529
1530     if(ist->next_pts == AV_NOPTS_VALUE)
1531         ist->next_pts= ist->pts;
1532
1533     if (pkt == NULL) {
1534         /* EOF handling */
1535         av_init_packet(&avpkt);
1536         avpkt.data = NULL;
1537         avpkt.size = 0;
1538         goto handle_eof;
1539     } else {
1540         avpkt = *pkt;
1541     }
1542
1543     if(pkt->dts != AV_NOPTS_VALUE)
1544         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1545
1546     //while we have more to decode or while the decoder did output something on EOF
1547     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1548         uint8_t *data_buf, *decoded_data_buf;
1549         int data_size, decoded_data_size;
1550     handle_eof:
1551         ist->pts= ist->next_pts;
1552
1553         if(avpkt.size && avpkt.size != pkt->size &&
1554            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1555             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1556             ist->showed_multi_packet_warning=1;
1557         }
1558
1559         /* decode the packet if needed */
1560         decoded_data_buf = NULL; /* fail safe */
1561         decoded_data_size= 0;
1562         data_buf  = avpkt.data;
1563         data_size = avpkt.size;
1564         subtitle_to_free = NULL;
1565         if (ist->decoding_needed) {
1566             switch(ist->st->codec->codec_type) {
1567             case AVMEDIA_TYPE_AUDIO:{
1568                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1569                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1570                     av_free(samples);
1571                     samples= av_malloc(samples_size);
1572                 }
1573                 decoded_data_size= samples_size;
1574                     /* XXX: could avoid copy if PCM 16 bits with same
1575                        endianness as CPU */
1576                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1577                                             &avpkt);
1578                 if (ret < 0)
1579                     goto fail_decode;
1580                 avpkt.data += ret;
1581                 avpkt.size -= ret;
1582                 data_size   = ret;
1583                 /* Some bug in mpeg audio decoder gives */
1584                 /* decoded_data_size < 0, it seems they are overflows */
1585                 if (decoded_data_size <= 0) {
1586                     /* no audio frame */
1587                     continue;
1588                 }
1589                 decoded_data_buf = (uint8_t *)samples;
1590                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1591                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1592                 break;}
1593             case AVMEDIA_TYPE_VIDEO:
1594                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1595                     /* XXX: allocate picture correctly */
1596                     avcodec_get_frame_defaults(&picture);
1597
1598                     ret = avcodec_decode_video2(ist->st->codec,
1599                                                 &picture, &got_picture, &avpkt);
1600                     ist->st->quality= picture.quality;
1601                     if (ret < 0)
1602                         goto fail_decode;
1603                     if (!got_picture) {
1604                         /* no picture yet */
1605                         goto discard_packet;
1606                     }
1607                     if (ist->st->codec->time_base.num != 0) {
1608                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1609                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1610                                           ist->st->codec->time_base.num * ticks) /
1611                             ist->st->codec->time_base.den;
1612                     }
1613                     avpkt.size = 0;
1614                     break;
1615             case AVMEDIA_TYPE_SUBTITLE:
1616                 ret = avcodec_decode_subtitle2(ist->st->codec,
1617                                                &subtitle, &got_subtitle, &avpkt);
1618                 if (ret < 0)
1619                     goto fail_decode;
1620                 if (!got_subtitle) {
1621                     goto discard_packet;
1622                 }
1623                 subtitle_to_free = &subtitle;
1624                 avpkt.size = 0;
1625                 break;
1626             default:
1627                 goto fail_decode;
1628             }
1629         } else {
1630             switch(ist->st->codec->codec_type) {
1631             case AVMEDIA_TYPE_AUDIO:
1632                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1633                     ist->st->codec->sample_rate;
1634                 break;
1635             case AVMEDIA_TYPE_VIDEO:
1636                 if (ist->st->codec->time_base.num != 0) {
1637                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1638                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1639                                       ist->st->codec->time_base.num * ticks) /
1640                         ist->st->codec->time_base.den;
1641                 }
1642                 break;
1643             }
1644             ret = avpkt.size;
1645             avpkt.size = 0;
1646         }
1647
1648         buffer_to_free = NULL;
1649         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1650             pre_process_video_frame(ist, (AVPicture *)&picture,
1651                                     &buffer_to_free);
1652         }
1653
1654 #if CONFIG_AVFILTER
1655         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1656             // add it to be filtered
1657             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1658                                      ist->pts,
1659                                      ist->st->codec->sample_aspect_ratio);
1660         }
1661 #endif
1662
1663         // preprocess audio (volume)
1664         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1665             if (audio_volume != 256) {
1666                 short *volp;
1667                 volp = samples;
1668                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1669                     int v = ((*volp) * audio_volume + 128) >> 8;
1670                     if (v < -32768) v = -32768;
1671                     if (v >  32767) v = 32767;
1672                     *volp++ = v;
1673                 }
1674             }
1675         }
1676
1677         /* frame rate emulation */
1678         if (rate_emu) {
1679             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1680             int64_t now = av_gettime() - ist->start;
1681             if (pts > now)
1682                 usleep(pts - now);
1683         }
1684 #if CONFIG_AVFILTER
1685         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1686             !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1687 #endif
1688         /* if output time reached then transcode raw format,
1689            encode packets and output them */
1690         if (start_time == 0 || ist->pts >= start_time)
1691 #if CONFIG_AVFILTER
1692         while (frame_available) {
1693             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1694                 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1695 #endif
1696             for(i=0;i<nb_ostreams;i++) {
1697                 int frame_size;
1698
1699                 ost = ost_table[i];
1700                 if (ost->source_index == ist_index) {
1701                     os = output_files[ost->file_index];
1702
1703                     /* set the input output pts pairs */
1704                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1705
1706                     if (ost->encoding_needed) {
1707                         assert(ist->decoding_needed);
1708                         switch(ost->st->codec->codec_type) {
1709                         case AVMEDIA_TYPE_AUDIO:
1710                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1711                             break;
1712                         case AVMEDIA_TYPE_VIDEO:
1713 #if CONFIG_AVFILTER
1714                             ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1715 #endif
1716                             do_video_out(os, ost, ist, &picture, &frame_size);
1717                             if (vstats_filename && frame_size)
1718                                 do_video_stats(os, ost, frame_size);
1719                             break;
1720                         case AVMEDIA_TYPE_SUBTITLE:
1721                             do_subtitle_out(os, ost, ist, &subtitle,
1722                                             pkt->pts);
1723                             break;
1724                         default:
1725                             abort();
1726                         }
1727                     } else {
1728                         AVFrame avframe; //FIXME/XXX remove this
1729                         AVPacket opkt;
1730                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1731
1732                         av_init_packet(&opkt);
1733
1734                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1735                             continue;
1736
1737                         /* no reencoding needed : output the packet directly */
1738                         /* force the input stream PTS */
1739
1740                         avcodec_get_frame_defaults(&avframe);
1741                         ost->st->codec->coded_frame= &avframe;
1742                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1743
1744                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1745                             audio_size += data_size;
1746                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1747                             video_size += data_size;
1748                             ost->sync_opts++;
1749                         }
1750
1751                         opkt.stream_index= ost->index;
1752                         if(pkt->pts != AV_NOPTS_VALUE)
1753                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1754                         else
1755                             opkt.pts= AV_NOPTS_VALUE;
1756
1757                         if (pkt->dts == AV_NOPTS_VALUE)
1758                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1759                         else
1760                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1761                         opkt.dts -= ost_tb_start_time;
1762
1763                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1764                         opkt.flags= pkt->flags;
1765
1766                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1767                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1768                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1769                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1770                            ) {
1771                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1772                                 opkt.destruct= av_destruct_packet;
1773                         } else {
1774                             opkt.data = data_buf;
1775                             opkt.size = data_size;
1776                         }
1777
1778                         write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1779                         ost->st->codec->frame_number++;
1780                         ost->frame_number++;
1781                         av_free_packet(&opkt);
1782                     }
1783                 }
1784 #if CONFIG_AVFILTER
1785                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1786                         ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1787 #endif
1788             }
1789
1790 #if CONFIG_AVFILTER
1791             if(ist->picref)
1792                 avfilter_unref_pic(ist->picref);
1793         }
1794 #endif
1795         av_free(buffer_to_free);
1796         /* XXX: allocate the subtitles in the codec ? */
1797         if (subtitle_to_free) {
1798             if (subtitle_to_free->rects != NULL) {
1799                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1800                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1801                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1802                     av_freep(&subtitle_to_free->rects[i]);
1803                 }
1804                 av_freep(&subtitle_to_free->rects);
1805             }
1806             subtitle_to_free->num_rects = 0;
1807             subtitle_to_free = NULL;
1808         }
1809     }
1810  discard_packet:
1811     if (pkt == NULL) {
1812         /* EOF handling */
1813
1814         for(i=0;i<nb_ostreams;i++) {
1815             ost = ost_table[i];
1816             if (ost->source_index == ist_index) {
1817                 AVCodecContext *enc= ost->st->codec;
1818                 os = output_files[ost->file_index];
1819
1820                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1821                     continue;
1822                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1823                     continue;
1824
1825                 if (ost->encoding_needed) {
1826                     for(;;) {
1827                         AVPacket pkt;
1828                         int fifo_bytes;
1829                         av_init_packet(&pkt);
1830                         pkt.stream_index= ost->index;
1831
1832                         switch(ost->st->codec->codec_type) {
1833                         case AVMEDIA_TYPE_AUDIO:
1834                             fifo_bytes = av_fifo_size(ost->fifo);
1835                             ret = 0;
1836                             /* encode any samples remaining in fifo */
1837                             if (fifo_bytes > 0) {
1838                                 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1839                                 int fs_tmp = enc->frame_size;
1840
1841                                 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1842                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1843                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1844                                 } else { /* pad */
1845                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1846                                     if (samples_size < frame_bytes)
1847                                         av_exit(1);
1848                                     memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1849                                 }
1850
1851                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1852                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1853                                                           ost->st->time_base.num, enc->sample_rate);
1854                                 enc->frame_size = fs_tmp;
1855                             }
1856                             if(ret <= 0) {
1857                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1858                             }
1859                             if (ret < 0) {
1860                                 fprintf(stderr, "Audio encoding failed\n");
1861                                 av_exit(1);
1862                             }
1863                             audio_size += ret;
1864                             pkt.flags |= AV_PKT_FLAG_KEY;
1865                             break;
1866                         case AVMEDIA_TYPE_VIDEO:
1867                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1868                             if (ret < 0) {
1869                                 fprintf(stderr, "Video encoding failed\n");
1870                                 av_exit(1);
1871                             }
1872                             video_size += ret;
1873                             if(enc->coded_frame && enc->coded_frame->key_frame)
1874                                 pkt.flags |= AV_PKT_FLAG_KEY;
1875                             if (ost->logfile && enc->stats_out) {
1876                                 fprintf(ost->logfile, "%s", enc->stats_out);
1877                             }
1878                             break;
1879                         default:
1880                             ret=-1;
1881                         }
1882
1883                         if(ret<=0)
1884                             break;
1885                         pkt.data= bit_buffer;
1886                         pkt.size= ret;
1887                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1888                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1889                         write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1890                     }
1891                 }
1892             }
1893         }
1894     }
1895
1896     return 0;
1897  fail_decode:
1898     return -1;
1899 }
1900
1901 static void print_sdp(AVFormatContext **avc, int n)
1902 {
1903     char sdp[2048];
1904
1905     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1906     printf("SDP:\n%s\n", sdp);
1907     fflush(stdout);
1908 }
1909
1910 static int copy_chapters(int infile, int outfile)
1911 {
1912     AVFormatContext *is = input_files[infile];
1913     AVFormatContext *os = output_files[outfile];
1914     int i;
1915
1916     for (i = 0; i < is->nb_chapters; i++) {
1917         AVChapter *in_ch = is->chapters[i], *out_ch;
1918         AVMetadataTag *t = NULL;
1919         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1920                                       AV_TIME_BASE_Q, in_ch->time_base);
1921         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1922                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1923
1924
1925         if (in_ch->end < ts_off)
1926             continue;
1927         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1928             break;
1929
1930         out_ch = av_mallocz(sizeof(AVChapter));
1931         if (!out_ch)
1932             return AVERROR(ENOMEM);
1933
1934         out_ch->id        = in_ch->id;
1935         out_ch->time_base = in_ch->time_base;
1936         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1937         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1938
1939         while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1940             av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1941
1942         os->nb_chapters++;
1943         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1944         if (!os->chapters)
1945             return AVERROR(ENOMEM);
1946         os->chapters[os->nb_chapters - 1] = out_ch;
1947     }
1948     return 0;
1949 }
1950
1951 /*
1952  * The following code is the main loop of the file converter
1953  */
1954 static int av_transcode(AVFormatContext **output_files,
1955                         int nb_output_files,
1956                         AVFormatContext **input_files,
1957                         int nb_input_files,
1958                         AVStreamMap *stream_maps, int nb_stream_maps)
1959 {
1960     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1961     AVFormatContext *is, *os;
1962     AVCodecContext *codec, *icodec;
1963     AVOutputStream *ost, **ost_table = NULL;
1964     AVInputStream *ist, **ist_table = NULL;
1965     AVInputFile *file_table;
1966     char error[1024];
1967     int key;
1968     int want_sdp = 1;
1969     uint8_t no_packet[MAX_FILES]={0};
1970     int no_packet_count=0;
1971
1972     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1973     if (!file_table)
1974         goto fail;
1975
1976     /* input stream init */
1977     j = 0;
1978     for(i=0;i<nb_input_files;i++) {
1979         is = input_files[i];
1980         file_table[i].ist_index = j;
1981         file_table[i].nb_streams = is->nb_streams;
1982         j += is->nb_streams;
1983     }
1984     nb_istreams = j;
1985
1986     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1987     if (!ist_table)
1988         goto fail;
1989
1990     for(i=0;i<nb_istreams;i++) {
1991         ist = av_mallocz(sizeof(AVInputStream));
1992         if (!ist)
1993             goto fail;
1994         ist_table[i] = ist;
1995     }
1996     j = 0;
1997     for(i=0;i<nb_input_files;i++) {
1998         is = input_files[i];
1999         for(k=0;k<is->nb_streams;k++) {
2000             ist = ist_table[j++];
2001             ist->st = is->streams[k];
2002             ist->file_index = i;
2003             ist->index = k;
2004             ist->discard = 1; /* the stream is discarded by default
2005                                  (changed later) */
2006
2007             if (rate_emu) {
2008                 ist->start = av_gettime();
2009             }
2010         }
2011     }
2012
2013     /* output stream init */
2014     nb_ostreams = 0;
2015     for(i=0;i<nb_output_files;i++) {
2016         os = output_files[i];
2017         if (!os->nb_streams) {
2018             dump_format(output_files[i], i, output_files[i]->filename, 1);
2019             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2020             av_exit(1);
2021         }
2022         nb_ostreams += os->nb_streams;
2023     }
2024     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2025         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2026         av_exit(1);
2027     }
2028
2029     /* Sanity check the mapping args -- do the input files & streams exist? */
2030     for(i=0;i<nb_stream_maps;i++) {
2031         int fi = stream_maps[i].file_index;
2032         int si = stream_maps[i].stream_index;
2033
2034         if (fi < 0 || fi > nb_input_files - 1 ||
2035             si < 0 || si > file_table[fi].nb_streams - 1) {
2036             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2037             av_exit(1);
2038         }
2039         fi = stream_maps[i].sync_file_index;
2040         si = stream_maps[i].sync_stream_index;
2041         if (fi < 0 || fi > nb_input_files - 1 ||
2042             si < 0 || si > file_table[fi].nb_streams - 1) {
2043             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2044             av_exit(1);
2045         }
2046     }
2047
2048     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2049     if (!ost_table)
2050         goto fail;
2051     for(i=0;i<nb_ostreams;i++) {
2052         ost = av_mallocz(sizeof(AVOutputStream));
2053         if (!ost)
2054             goto fail;
2055         ost_table[i] = ost;
2056     }
2057
2058     n = 0;
2059     for(k=0;k<nb_output_files;k++) {
2060         os = output_files[k];
2061         for(i=0;i<os->nb_streams;i++,n++) {
2062             int found;
2063             ost = ost_table[n];
2064             ost->file_index = k;
2065             ost->index = i;
2066             ost->st = os->streams[i];
2067             if (nb_stream_maps > 0) {
2068                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2069                     stream_maps[n].stream_index;
2070
2071                 /* Sanity check that the stream types match */
2072                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2073                     int i= ost->file_index;
2074                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2075                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2076                         stream_maps[n].file_index, stream_maps[n].stream_index,
2077                         ost->file_index, ost->index);
2078                     av_exit(1);
2079                 }
2080
2081             } else {
2082                 int best_nb_frames=-1;
2083                     /* get corresponding input stream index : we select the first one with the right type */
2084                     found = 0;
2085                     for(j=0;j<nb_istreams;j++) {
2086                         int skip=0;
2087                         ist = ist_table[j];
2088                         if(opt_programid){
2089                             int pi,si;
2090                             AVFormatContext *f= input_files[ ist->file_index ];
2091                             skip=1;
2092                             for(pi=0; pi<f->nb_programs; pi++){
2093                                 AVProgram *p= f->programs[pi];
2094                                 if(p->id == opt_programid)
2095                                     for(si=0; si<p->nb_stream_indexes; si++){
2096                                         if(f->streams[ p->stream_index[si] ] == ist->st)
2097                                             skip=0;
2098                                     }
2099                             }
2100                         }
2101                         if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2102                             ist->st->codec->codec_type == ost->st->codec->codec_type) {
2103                             if(best_nb_frames < ist->st->codec_info_nb_frames){
2104                                 best_nb_frames= ist->st->codec_info_nb_frames;
2105                                 ost->source_index = j;
2106                                 found = 1;
2107                             }
2108                         }
2109                     }
2110
2111                 if (!found) {
2112                     if(! opt_programid) {
2113                         /* try again and reuse existing stream */
2114                         for(j=0;j<nb_istreams;j++) {
2115                             ist = ist_table[j];
2116                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2117                                 && ist->st->discard != AVDISCARD_ALL) {
2118                                 ost->source_index = j;
2119                                 found = 1;
2120                             }
2121                         }
2122                     }
2123                     if (!found) {
2124                         int i= ost->file_index;
2125                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2126                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2127                                 ost->file_index, ost->index);
2128                         av_exit(1);
2129                     }
2130                 }
2131             }
2132             ist = ist_table[ost->source_index];
2133             ist->discard = 0;
2134             ost->sync_ist = (nb_stream_maps > 0) ?
2135                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2136                          stream_maps[n].sync_stream_index] : ist;
2137         }
2138     }
2139
2140     /* for each output stream, we compute the right encoding parameters */
2141     for(i=0;i<nb_ostreams;i++) {
2142         AVMetadataTag *t = NULL;
2143         ost = ost_table[i];
2144         os = output_files[ost->file_index];
2145         ist = ist_table[ost->source_index];
2146
2147         codec = ost->st->codec;
2148         icodec = ist->st->codec;
2149
2150         while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2151             av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2152         }
2153
2154         ost->st->disposition = ist->st->disposition;
2155         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2156         codec->chroma_sample_location = icodec->chroma_sample_location;
2157
2158         if (ost->st->stream_copy) {
2159             /* if stream_copy is selected, no need to decode or encode */
2160             codec->codec_id = icodec->codec_id;
2161             codec->codec_type = icodec->codec_type;
2162
2163             if(!codec->codec_tag){
2164                 if(   !os->oformat->codec_tag
2165                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2166                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2167                     codec->codec_tag = icodec->codec_tag;
2168             }
2169
2170             codec->bit_rate = icodec->bit_rate;
2171             codec->extradata= icodec->extradata;
2172             codec->extradata_size= icodec->extradata_size;
2173             if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2174                 codec->time_base = icodec->time_base;
2175                 codec->time_base.num *= icodec->ticks_per_frame;
2176             }else
2177                 codec->time_base = ist->st->time_base;
2178             switch(codec->codec_type) {
2179             case AVMEDIA_TYPE_AUDIO:
2180                 if(audio_volume != 256) {
2181                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2182                     av_exit(1);
2183                 }
2184                 codec->channel_layout = icodec->channel_layout;
2185                 codec->sample_rate = icodec->sample_rate;
2186                 codec->channels = icodec->channels;
2187                 codec->frame_size = icodec->frame_size;
2188                 codec->block_align= icodec->block_align;
2189                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2190                     codec->block_align= 0;
2191                 if(codec->codec_id == CODEC_ID_AC3)
2192                     codec->block_align= 0;
2193                 break;
2194             case AVMEDIA_TYPE_VIDEO:
2195                 codec->pix_fmt = icodec->pix_fmt;
2196                 codec->width = icodec->width;
2197                 codec->height = icodec->height;
2198                 codec->has_b_frames = icodec->has_b_frames;
2199                 break;
2200             case AVMEDIA_TYPE_SUBTITLE:
2201                 codec->width = icodec->width;
2202                 codec->height = icodec->height;
2203                 break;
2204             default:
2205                 abort();
2206             }
2207         } else {
2208             switch(codec->codec_type) {
2209             case AVMEDIA_TYPE_AUDIO:
2210                 ost->fifo= av_fifo_alloc(1024);
2211                 if(!ost->fifo)
2212                     goto fail;
2213                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2214                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2215                 icodec->request_channels = codec->channels;
2216                 ist->decoding_needed = 1;
2217                 ost->encoding_needed = 1;
2218                 break;
2219             case AVMEDIA_TYPE_VIDEO:
2220                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2221                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2222                     av_exit(1);
2223                 }
2224                 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2225                 ost->video_resample = ((codec->width != icodec->width -
2226                                 (frame_leftBand + frame_rightBand)) ||
2227                         (codec->height != icodec->height -
2228                                 (frame_topBand  + frame_bottomBand)) ||
2229                         (codec->pix_fmt != icodec->pix_fmt));
2230                 if (ost->video_crop) {
2231                     ost->topBand    = ost->original_topBand    = frame_topBand;
2232                     ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2233                     ost->leftBand   = ost->original_leftBand   = frame_leftBand;
2234                     ost->rightBand  = ost->original_rightBand  = frame_rightBand;
2235                 }
2236                 if (ost->video_resample) {
2237                     avcodec_get_frame_defaults(&ost->pict_tmp);
2238                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2239                                          codec->width, codec->height)) {
2240                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2241                         av_exit(1);
2242                     }
2243                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2244                     ost->img_resample_ctx = sws_getContext(
2245                             icodec->width - (frame_leftBand + frame_rightBand),
2246                             icodec->height - (frame_topBand + frame_bottomBand),
2247                             icodec->pix_fmt,
2248                             codec->width,
2249                             codec->height,
2250                             codec->pix_fmt,
2251                             sws_flags, NULL, NULL, NULL);
2252                     if (ost->img_resample_ctx == NULL) {
2253                         fprintf(stderr, "Cannot get resampling context\n");
2254                         av_exit(1);
2255                     }
2256
2257 #if !CONFIG_AVFILTER
2258                     ost->original_height = icodec->height;
2259                     ost->original_width  = icodec->width;
2260 #endif
2261                     codec->bits_per_raw_sample= 0;
2262                 }
2263                 ost->resample_height = icodec->height - (frame_topBand  + frame_bottomBand);
2264                 ost->resample_width  = icodec->width  - (frame_leftBand + frame_rightBand);
2265                 ost->resample_pix_fmt= icodec->pix_fmt;
2266                 ost->encoding_needed = 1;
2267                 ist->decoding_needed = 1;
2268
2269 #if CONFIG_AVFILTER
2270                 if (configure_filters(ist, ost)) {
2271                     fprintf(stderr, "Error opening filters!\n");
2272                     exit(1);
2273                 }
2274 #endif
2275                 break;
2276             case AVMEDIA_TYPE_SUBTITLE:
2277                 ost->encoding_needed = 1;
2278                 ist->decoding_needed = 1;
2279                 break;
2280             default:
2281                 abort();
2282                 break;
2283             }
2284             /* two pass mode */
2285             if (ost->encoding_needed &&
2286                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2287                 char logfilename[1024];
2288                 FILE *f;
2289
2290                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2291                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2292                          i);
2293                 if (codec->flags & CODEC_FLAG_PASS1) {
2294                     f = fopen(logfilename, "w");
2295                     if (!f) {
2296                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2297                         av_exit(1);
2298                     }
2299                     ost->logfile = f;
2300                 } else {
2301                     char  *logbuffer;
2302                     size_t logbuffer_size;
2303                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2304                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2305                         av_exit(1);
2306                     }
2307                     codec->stats_in = logbuffer;
2308                 }
2309             }
2310         }
2311         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2312             int size= codec->width * codec->height;
2313             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2314         }
2315     }
2316
2317     if (!bit_buffer)
2318         bit_buffer = av_malloc(bit_buffer_size);
2319     if (!bit_buffer) {
2320         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2321                 bit_buffer_size);
2322         ret = AVERROR(ENOMEM);
2323         goto fail;
2324     }
2325
2326     /* open each encoder */
2327     for(i=0;i<nb_ostreams;i++) {
2328         ost = ost_table[i];
2329         if (ost->encoding_needed) {
2330             AVCodec *codec = output_codecs[i];
2331             if (!codec)
2332                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2333             if (!codec) {
2334                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2335                          ost->st->codec->codec_id, ost->file_index, ost->index);
2336                 ret = AVERROR(EINVAL);
2337                 goto dump_format;
2338             }
2339             if (avcodec_open(ost->st->codec, codec) < 0) {
2340                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2341                         ost->file_index, ost->index);
2342                 ret = AVERROR(EINVAL);
2343                 goto dump_format;
2344             }
2345             extra_size += ost->st->codec->extradata_size;
2346         }
2347     }
2348
2349     /* open each decoder */
2350     for(i=0;i<nb_istreams;i++) {
2351         ist = ist_table[i];
2352         if (ist->decoding_needed) {
2353             AVCodec *codec = input_codecs[i];
2354             if (!codec)
2355                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2356             if (!codec) {
2357                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2358                         ist->st->codec->codec_id, ist->file_index, ist->index);
2359                 ret = AVERROR(EINVAL);
2360                 goto dump_format;
2361             }
2362             if (avcodec_open(ist->st->codec, codec) < 0) {
2363                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2364                         ist->file_index, ist->index);
2365                 ret = AVERROR(EINVAL);
2366                 goto dump_format;
2367             }
2368             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2369             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2370         }
2371     }
2372
2373     /* init pts */
2374     for(i=0;i<nb_istreams;i++) {
2375         AVStream *st;
2376         ist = ist_table[i];
2377         st= ist->st;
2378         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2379         ist->next_pts = AV_NOPTS_VALUE;
2380         ist->is_start = 1;
2381     }
2382
2383     /* set meta data information from input file if required */
2384     for (i=0;i<nb_meta_data_maps;i++) {
2385         AVFormatContext *out_file;
2386         AVFormatContext *in_file;
2387         AVMetadataTag *mtag;
2388
2389         int out_file_index = meta_data_maps[i].out_file;
2390         int in_file_index = meta_data_maps[i].in_file;
2391         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2392             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2393                      out_file_index, out_file_index, in_file_index);
2394             ret = AVERROR(EINVAL);
2395             goto dump_format;
2396         }
2397         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2398             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2399                      in_file_index, out_file_index, in_file_index);
2400             ret = AVERROR(EINVAL);
2401             goto dump_format;
2402         }
2403
2404         out_file = output_files[out_file_index];
2405         in_file = input_files[in_file_index];
2406
2407
2408         mtag=NULL;
2409         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2410             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2411         av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2412                                     in_file->iformat->metadata_conv);
2413     }
2414
2415     /* copy chapters from the first input file that has them*/
2416     for (i = 0; i < nb_input_files; i++) {
2417         if (!input_files[i]->nb_chapters)
2418             continue;
2419
2420         for (j = 0; j < nb_output_files; j++)
2421             if ((ret = copy_chapters(i, j)) < 0)
2422                 goto dump_format;
2423     }
2424
2425     /* open files and write file headers */
2426     for(i=0;i<nb_output_files;i++) {
2427         os = output_files[i];
2428         if (av_write_header(os) < 0) {
2429             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2430             ret = AVERROR(EINVAL);
2431             goto dump_format;
2432         }
2433         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2434             want_sdp = 0;
2435         }
2436     }
2437
2438  dump_format:
2439     /* dump the file output parameters - cannot be done before in case
2440        of stream copy */
2441     for(i=0;i<nb_output_files;i++) {
2442         dump_format(output_files[i], i, output_files[i]->filename, 1);
2443     }
2444
2445     /* dump the stream mapping */
2446     if (verbose >= 0) {
2447         fprintf(stderr, "Stream mapping:\n");
2448         for(i=0;i<nb_ostreams;i++) {
2449             ost = ost_table[i];
2450             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2451                     ist_table[ost->source_index]->file_index,
2452                     ist_table[ost->source_index]->index,
2453                     ost->file_index,
2454                     ost->index);
2455             if (ost->sync_ist != ist_table[ost->source_index])
2456                 fprintf(stderr, " [sync #%d.%d]",
2457                         ost->sync_ist->file_index,
2458                         ost->sync_ist->index);
2459             fprintf(stderr, "\n");
2460         }
2461     }
2462
2463     if (ret) {
2464         fprintf(stderr, "%s\n", error);
2465         goto fail;
2466     }
2467
2468     if (want_sdp) {
2469         print_sdp(output_files, nb_output_files);
2470     }
2471
2472     if (!using_stdin && verbose >= 0) {
2473         fprintf(stderr, "Press [q] to stop encoding\n");
2474         url_set_interrupt_cb(decode_interrupt_cb);
2475     }
2476     term_init();
2477
2478     timer_start = av_gettime();
2479
2480     for(; received_sigterm == 0;) {
2481         int file_index, ist_index;
2482         AVPacket pkt;
2483         double ipts_min;
2484         double opts_min;
2485
2486     redo:
2487         ipts_min= 1e100;
2488         opts_min= 1e100;
2489         /* if 'q' pressed, exits */
2490         if (!using_stdin) {
2491             if (q_pressed)
2492                 break;
2493             /* read_key() returns 0 on EOF */
2494             key = read_key();
2495             if (key == 'q')
2496                 break;
2497         }
2498
2499         /* select the stream that we must read now by looking at the
2500            smallest output pts */
2501         file_index = -1;
2502         for(i=0;i<nb_ostreams;i++) {
2503             double ipts, opts;
2504             ost = ost_table[i];
2505             os = output_files[ost->file_index];
2506             ist = ist_table[ost->source_index];
2507             if(ist->is_past_recording_time || no_packet[ist->file_index])
2508                 continue;
2509                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2510             ipts = (double)ist->pts;
2511             if (!file_table[ist->file_index].eof_reached){
2512                 if(ipts < ipts_min) {
2513                     ipts_min = ipts;
2514                     if(input_sync ) file_index = ist->file_index;
2515                 }
2516                 if(opts < opts_min) {
2517                     opts_min = opts;
2518                     if(!input_sync) file_index = ist->file_index;
2519                 }
2520             }
2521             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2522                 file_index= -1;
2523                 break;
2524             }
2525         }
2526         /* if none, if is finished */
2527         if (file_index < 0) {
2528             if(no_packet_count){
2529                 no_packet_count=0;
2530                 memset(no_packet, 0, sizeof(no_packet));
2531                 usleep(10000);
2532                 continue;
2533             }
2534             break;
2535         }
2536
2537         /* finish if limit size exhausted */
2538         if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2539             break;
2540
2541         /* read a frame from it and output it in the fifo */
2542         is = input_files[file_index];
2543         ret= av_read_frame(is, &pkt);
2544         if(ret == AVERROR(EAGAIN)){
2545             no_packet[file_index]=1;
2546             no_packet_count++;
2547             continue;
2548         }
2549         if (ret < 0) {
2550             file_table[file_index].eof_reached = 1;
2551             if (opt_shortest)
2552                 break;
2553             else
2554                 continue;
2555         }
2556
2557         no_packet_count=0;
2558         memset(no_packet, 0, sizeof(no_packet));
2559
2560         if (do_pkt_dump) {
2561             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2562         }
2563         /* the following test is needed in case new streams appear
2564            dynamically in stream : we ignore them */
2565         if (pkt.stream_index >= file_table[file_index].nb_streams)
2566             goto discard_packet;
2567         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2568         ist = ist_table[ist_index];
2569         if (ist->discard)
2570             goto discard_packet;
2571
2572         if (pkt.dts != AV_NOPTS_VALUE)
2573             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2574         if (pkt.pts != AV_NOPTS_VALUE)
2575             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2576
2577         if(input_files_ts_scale[file_index][pkt.stream_index]){
2578             if(pkt.pts != AV_NOPTS_VALUE)
2579                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2580             if(pkt.dts != AV_NOPTS_VALUE)
2581                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2582         }
2583
2584 //        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);
2585         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2586             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2587             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2588             int64_t delta= pkt_dts - ist->next_pts;
2589             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2590                 input_files_ts_offset[ist->file_index]-= delta;
2591                 if (verbose > 2)
2592                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2593                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2594                 if(pkt.pts != AV_NOPTS_VALUE)
2595                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2596             }
2597         }
2598
2599         /* finish if recording time exhausted */
2600         if (recording_time != INT64_MAX &&
2601             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2602             ist->is_past_recording_time = 1;
2603             goto discard_packet;
2604         }
2605
2606         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2607         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2608
2609             if (verbose >= 0)
2610                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2611                         ist->file_index, ist->index);
2612             if (exit_on_error)
2613                 av_exit(1);
2614             av_free_packet(&pkt);
2615             goto redo;
2616         }
2617
2618     discard_packet:
2619         av_free_packet(&pkt);
2620
2621         /* dump report by using the output first video and audio streams */
2622         print_report(output_files, ost_table, nb_ostreams, 0);
2623     }
2624
2625     /* at the end of stream, we must flush the decoder buffers */
2626     for(i=0;i<nb_istreams;i++) {
2627         ist = ist_table[i];
2628         if (ist->decoding_needed) {
2629             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2630         }
2631     }
2632
2633     term_exit();
2634
2635     /* write the trailer if needed and close file */
2636     for(i=0;i<nb_output_files;i++) {
2637         os = output_files[i];
2638         av_write_trailer(os);
2639     }
2640
2641     /* dump report by using the first video and audio streams */
2642     print_report(output_files, ost_table, nb_ostreams, 1);
2643
2644     /* close each encoder */
2645     for(i=0;i<nb_ostreams;i++) {
2646         ost = ost_table[i];
2647         if (ost->encoding_needed) {
2648             av_freep(&ost->st->codec->stats_in);
2649             avcodec_close(ost->st->codec);
2650         }
2651     }
2652
2653     /* close each decoder */
2654     for(i=0;i<nb_istreams;i++) {
2655         ist = ist_table[i];
2656         if (ist->decoding_needed) {
2657             avcodec_close(ist->st->codec);
2658         }
2659     }
2660 #if CONFIG_AVFILTER
2661     if (graph) {
2662         avfilter_graph_destroy(graph);
2663         av_freep(&graph);
2664     }
2665 #endif
2666
2667     /* finished ! */
2668     ret = 0;
2669
2670  fail:
2671     av_freep(&bit_buffer);
2672     av_free(file_table);
2673
2674     if (ist_table) {
2675         for(i=0;i<nb_istreams;i++) {
2676             ist = ist_table[i];
2677             av_free(ist);
2678         }
2679         av_free(ist_table);
2680     }
2681     if (ost_table) {
2682         for(i=0;i<nb_ostreams;i++) {
2683             ost = ost_table[i];
2684             if (ost) {
2685                 if (ost->logfile) {
2686                     fclose(ost->logfile);
2687                     ost->logfile = NULL;
2688                 }
2689                 av_fifo_free(ost->fifo); /* works even if fifo is not
2690                                              initialized but set to zero */
2691                 av_free(ost->pict_tmp.data[0]);
2692                 if (ost->video_resample)
2693                     sws_freeContext(ost->img_resample_ctx);
2694                 if (ost->resample)
2695                     audio_resample_close(ost->resample);
2696                 if (ost->reformat_ctx)
2697                     av_audio_convert_free(ost->reformat_ctx);
2698                 av_free(ost);
2699             }
2700         }
2701         av_free(ost_table);
2702     }
2703     return ret;
2704 }
2705
2706 static void opt_format(const char *arg)
2707 {
2708     /* compatibility stuff for pgmyuv */
2709     if (!strcmp(arg, "pgmyuv")) {
2710         pgmyuv_compatibility_hack=1;
2711 //        opt_image_format(arg);
2712         arg = "image2";
2713         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2714     }
2715
2716     last_asked_format = arg;
2717 }
2718
2719 static void opt_video_rc_override_string(const char *arg)
2720 {
2721     video_rc_override_string = arg;
2722 }
2723
2724 static int opt_me_threshold(const char *opt, const char *arg)
2725 {
2726     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2727     return 0;
2728 }
2729
2730 static int opt_verbose(const char *opt, const char *arg)
2731 {
2732     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2733     return 0;
2734 }
2735
2736 static int opt_frame_rate(const char *opt, const char *arg)
2737 {
2738     if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2739         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2740         av_exit(1);
2741     }
2742     return 0;
2743 }
2744
2745 static int opt_bitrate(const char *opt, const char *arg)
2746 {
2747     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2748
2749     opt_default(opt, arg);
2750
2751     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2752         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2753
2754     return 0;
2755 }
2756
2757 static void opt_frame_crop_top(const char *arg)
2758 {
2759     frame_topBand = atoi(arg);
2760     if (frame_topBand < 0) {
2761         fprintf(stderr, "Incorrect top crop size\n");
2762         av_exit(1);
2763     }
2764     if ((frame_topBand) >= frame_height){
2765         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2766         av_exit(1);
2767     }
2768     frame_height -= frame_topBand;
2769 }
2770
2771 static void opt_frame_crop_bottom(const char *arg)
2772 {
2773     frame_bottomBand = atoi(arg);
2774     if (frame_bottomBand < 0) {
2775         fprintf(stderr, "Incorrect bottom crop size\n");
2776         av_exit(1);
2777     }
2778     if ((frame_bottomBand) >= frame_height){
2779         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2780         av_exit(1);
2781     }
2782     frame_height -= frame_bottomBand;
2783 }
2784
2785 static void opt_frame_crop_left(const char *arg)
2786 {
2787     frame_leftBand = atoi(arg);
2788     if (frame_leftBand < 0) {
2789         fprintf(stderr, "Incorrect left crop size\n");
2790         av_exit(1);
2791     }
2792     if ((frame_leftBand) >= frame_width){
2793         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2794         av_exit(1);
2795     }
2796     frame_width -= frame_leftBand;
2797 }
2798
2799 static void opt_frame_crop_right(const char *arg)
2800 {
2801     frame_rightBand = atoi(arg);
2802     if (frame_rightBand < 0) {
2803         fprintf(stderr, "Incorrect right crop size\n");
2804         av_exit(1);
2805     }
2806     if ((frame_rightBand) >= frame_width){
2807         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2808         av_exit(1);
2809     }
2810     frame_width -= frame_rightBand;
2811 }
2812
2813 static void opt_frame_size(const char *arg)
2814 {
2815     if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2816         fprintf(stderr, "Incorrect frame size\n");
2817         av_exit(1);
2818     }
2819 }
2820
2821 static void opt_pad(const char *arg) {
2822     fprintf(stderr, "Please use vf=pad\n");
2823     av_exit(1);
2824 }
2825
2826 static void opt_frame_pix_fmt(const char *arg)
2827 {
2828     if (strcmp(arg, "list")) {
2829         frame_pix_fmt = av_get_pix_fmt(arg);
2830         if (frame_pix_fmt == PIX_FMT_NONE) {
2831             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2832             av_exit(1);
2833         }
2834     } else {
2835         show_pix_fmts();
2836         av_exit(0);
2837     }
2838 }
2839
2840 static void opt_frame_aspect_ratio(const char *arg)
2841 {
2842     int x = 0, y = 0;
2843     double ar = 0;
2844     const char *p;
2845     char *end;
2846
2847     p = strchr(arg, ':');
2848     if (p) {
2849         x = strtol(arg, &end, 10);
2850         if (end == p)
2851             y = strtol(end+1, &end, 10);
2852         if (x > 0 && y > 0)
2853             ar = (double)x / (double)y;
2854     } else
2855         ar = strtod(arg, NULL);
2856
2857     if (!ar) {
2858         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2859         av_exit(1);
2860     }
2861     frame_aspect_ratio = ar;
2862 }
2863
2864 static int opt_metadata(const char *opt, const char *arg)
2865 {
2866     char *mid= strchr(arg, '=');
2867
2868     if(!mid){
2869         fprintf(stderr, "Missing =\n");
2870         av_exit(1);
2871     }
2872     *mid++= 0;
2873
2874     metadata_count++;
2875     metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2876     metadata[metadata_count-1].key  = av_strdup(arg);
2877     metadata[metadata_count-1].value= av_strdup(mid);
2878
2879     return 0;
2880 }
2881
2882 static void opt_qscale(const char *arg)
2883 {
2884     video_qscale = atof(arg);
2885     if (video_qscale <= 0 ||
2886         video_qscale > 255) {
2887         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2888         av_exit(1);
2889     }
2890 }
2891
2892 static void opt_top_field_first(const char *arg)
2893 {
2894     top_field_first= atoi(arg);
2895 }
2896
2897 static int opt_thread_count(const char *opt, const char *arg)
2898 {
2899     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2900 #if !HAVE_THREADS
2901     if (verbose >= 0)
2902         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2903 #endif
2904     return 0;
2905 }
2906
2907 static void opt_audio_sample_fmt(const char *arg)
2908 {
2909     if (strcmp(arg, "list"))
2910         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2911     else {
2912         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2913         av_exit(0);
2914     }
2915 }
2916
2917 static int opt_audio_rate(const char *opt, const char *arg)
2918 {
2919     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2920     return 0;
2921 }
2922
2923 static int opt_audio_channels(const char *opt, const char *arg)
2924 {
2925     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2926     return 0;
2927 }
2928
2929 static void opt_video_channel(const char *arg)
2930 {
2931     video_channel = strtol(arg, NULL, 0);
2932 }
2933
2934 static void opt_video_standard(const char *arg)
2935 {
2936     video_standard = av_strdup(arg);
2937 }
2938
2939 static void opt_codec(int *pstream_copy, char **pcodec_name,
2940                       int codec_type, const char *arg)
2941 {
2942     av_freep(pcodec_name);
2943     if (!strcmp(arg, "copy")) {
2944         *pstream_copy = 1;
2945     } else {
2946         *pcodec_name = av_strdup(arg);
2947     }
2948 }
2949
2950 static void opt_audio_codec(const char *arg)
2951 {
2952     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2953 }
2954
2955 static void opt_audio_tag(const char *arg)
2956 {
2957     char *tail;
2958     audio_codec_tag= strtol(arg, &tail, 0);
2959
2960     if(!tail || *tail)
2961         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2962 }
2963
2964 static void opt_video_tag(const char *arg)
2965 {
2966     char *tail;
2967     video_codec_tag= strtol(arg, &tail, 0);
2968
2969     if(!tail || *tail)
2970         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2971 }
2972
2973 static void opt_video_codec(const char *arg)
2974 {
2975     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2976 }
2977
2978 static void opt_subtitle_codec(const char *arg)
2979 {
2980     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2981 }
2982
2983 static void opt_subtitle_tag(const char *arg)
2984 {
2985     char *tail;
2986     subtitle_codec_tag= strtol(arg, &tail, 0);
2987
2988     if(!tail || *tail)
2989         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2990 }
2991
2992 static void opt_map(const char *arg)
2993 {
2994     AVStreamMap *m;
2995     char *p;
2996
2997     m = &stream_maps[nb_stream_maps++];
2998
2999     m->file_index = strtol(arg, &p, 0);
3000     if (*p)
3001         p++;
3002
3003     m->stream_index = strtol(p, &p, 0);
3004     if (*p) {
3005         p++;
3006         m->sync_file_index = strtol(p, &p, 0);
3007         if (*p)
3008             p++;
3009         m->sync_stream_index = strtol(p, &p, 0);
3010     } else {
3011         m->sync_file_index = m->file_index;
3012         m->sync_stream_index = m->stream_index;
3013     }
3014 }
3015
3016 static void opt_map_meta_data(const char *arg)
3017 {
3018     AVMetaDataMap *m;
3019     char *p;
3020
3021     m = &meta_data_maps[nb_meta_data_maps++];
3022
3023     m->out_file = strtol(arg, &p, 0);
3024     if (*p)
3025         p++;
3026
3027     m->in_file = strtol(p, &p, 0);
3028 }
3029
3030 static void opt_input_ts_scale(const char *arg)
3031 {
3032     unsigned int stream;
3033     double scale;
3034     char *p;
3035
3036     stream = strtol(arg, &p, 0);
3037     if (*p)
3038         p++;
3039     scale= strtod(p, &p);
3040
3041     if(stream >= MAX_STREAMS)
3042         av_exit(1);
3043
3044     input_files_ts_scale[nb_input_files][stream]= scale;
3045 }
3046
3047 static int opt_recording_time(const char *opt, const char *arg)
3048 {
3049     recording_time = parse_time_or_die(opt, arg, 1);
3050     return 0;
3051 }
3052
3053 static int opt_start_time(const char *opt, const char *arg)
3054 {
3055     start_time = parse_time_or_die(opt, arg, 1);
3056     return 0;
3057 }
3058
3059 static int opt_rec_timestamp(const char *opt, const char *arg)
3060 {
3061     rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3062     return 0;
3063 }
3064
3065 static int opt_input_ts_offset(const char *opt, const char *arg)
3066 {
3067     input_ts_offset = parse_time_or_die(opt, arg, 1);
3068     return 0;
3069 }
3070
3071 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
3072 {
3073     const char *codec_string = encoder ? "encoder" : "decoder";
3074     AVCodec *codec;
3075
3076     if(!name)
3077         return CODEC_ID_NONE;
3078     codec = encoder ?
3079         avcodec_find_encoder_by_name(name) :
3080         avcodec_find_decoder_by_name(name);
3081     if(!codec) {
3082         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3083         av_exit(1);
3084     }
3085     if(codec->type != type) {
3086         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3087         av_exit(1);
3088     }
3089     return codec->id;
3090 }
3091
3092 static void opt_input_file(const char *filename)
3093 {
3094     AVFormatContext *ic;
3095     AVFormatParameters params, *ap = &params;
3096     AVInputFormat *file_iformat = NULL;
3097     int err, i, ret, rfps, rfps_base;
3098     int64_t timestamp;
3099
3100     if (last_asked_format) {
3101         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3102             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3103             av_exit(1);
3104         }
3105         last_asked_format = NULL;
3106     }
3107
3108     if (!strcmp(filename, "-"))
3109         filename = "pipe:";
3110
3111     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3112                     !strcmp(filename, "/dev/stdin");
3113
3114     /* get default parameters from command line */
3115     ic = avformat_alloc_context();
3116     if (!ic) {
3117         print_error(filename, AVERROR(ENOMEM));
3118         av_exit(1);
3119     }
3120
3121     memset(ap, 0, sizeof(*ap));
3122     ap->prealloced_context = 1;
3123     ap->sample_rate = audio_sample_rate;
3124     ap->channels = audio_channels;
3125     ap->time_base.den = frame_rate.num;
3126     ap->time_base.num = frame_rate.den;
3127     ap->width = frame_width;
3128     ap->height = frame_height;
3129     ap->pix_fmt = frame_pix_fmt;
3130    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3131     ap->channel = video_channel;
3132     ap->standard = video_standard;
3133
3134     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3135
3136     ic->video_codec_id   = find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
3137     ic->audio_codec_id   = find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
3138     ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
3139     ic->flags |= AVFMT_FLAG_NONBLOCK;
3140
3141     if(pgmyuv_compatibility_hack)
3142         ic->video_codec_id= CODEC_ID_PGMYUV;
3143
3144     /* open the input file with generic libav function */
3145     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3146     if (err < 0) {
3147         print_error(filename, err);
3148         av_exit(1);
3149     }
3150     if(opt_programid) {
3151         int i, j;
3152         int found=0;
3153         for(i=0; i<ic->nb_streams; i++){
3154             ic->streams[i]->discard= AVDISCARD_ALL;
3155         }
3156         for(i=0; i<ic->nb_programs; i++){
3157             AVProgram *p= ic->programs[i];
3158             if(p->id != opt_programid){
3159                 p->discard = AVDISCARD_ALL;
3160             }else{
3161                 found=1;
3162                 for(j=0; j<p->nb_stream_indexes; j++){
3163                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3164                 }
3165             }
3166         }
3167         if(!found){
3168             fprintf(stderr, "Specified program id not found\n");
3169             av_exit(1);
3170         }
3171         opt_programid=0;
3172     }
3173
3174     ic->loop_input = loop_input;
3175
3176     /* If not enough info to get the stream parameters, we decode the
3177        first frames to get it. (used in mpeg case for example) */
3178     ret = av_find_stream_info(ic);
3179     if (ret < 0 && verbose >= 0) {
3180         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3181         av_exit(1);
3182     }
3183
3184     timestamp = start_time;
3185     /* add the stream start time */
3186     if (ic->start_time != AV_NOPTS_VALUE)
3187         timestamp += ic->start_time;
3188
3189     /* if seeking requested, we execute it */
3190     if (start_time != 0) {
3191         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3192         if (ret < 0) {
3193             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3194                     filename, (double)timestamp / AV_TIME_BASE);
3195         }
3196         /* reset seek info */
3197         start_time = 0;
3198     }
3199
3200     /* update the current parameters so that they match the one of the input stream */
3201     for(i=0;i<ic->nb_streams;i++) {
3202         AVStream *st = ic->streams[i];
3203         AVCodecContext *enc = st->codec;
3204         avcodec_thread_init(enc, thread_count);
3205         switch(enc->codec_type) {
3206         case AVMEDIA_TYPE_AUDIO:
3207             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3208             //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3209             channel_layout = enc->channel_layout;
3210             audio_channels = enc->channels;
3211             audio_sample_rate = enc->sample_rate;
3212             audio_sample_fmt = enc->sample_fmt;
3213             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3214             if(audio_disable)
3215                 st->discard= AVDISCARD_ALL;
3216             break;
3217         case AVMEDIA_TYPE_VIDEO:
3218             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3219             frame_height = enc->height;
3220             frame_width = enc->width;
3221             if(ic->streams[i]->sample_aspect_ratio.num)
3222                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3223             else
3224                 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3225             frame_aspect_ratio *= (float) enc->width / enc->height;
3226             frame_pix_fmt = enc->pix_fmt;
3227             rfps      = ic->streams[i]->r_frame_rate.num;
3228             rfps_base = ic->streams[i]->r_frame_rate.den;
3229             if(enc->lowres) {
3230                 enc->flags |= CODEC_FLAG_EMU_EDGE;
3231                 frame_height >>= enc->lowres;
3232                 frame_width  >>= enc->lowres;
3233             }
3234             if(me_threshold)
3235                 enc->debug |= FF_DEBUG_MV;
3236
3237             if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3238
3239                 if (verbose >= 0)
3240                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3241                             i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3242
3243                     (float)rfps / rfps_base, rfps, rfps_base);
3244             }
3245             /* update the current frame rate to match the stream frame rate */
3246             frame_rate.num = rfps;
3247             frame_rate.den = rfps_base;
3248
3249             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3250             if(video_disable)
3251                 st->discard= AVDISCARD_ALL;
3252             else if(video_discard)
3253                 st->discard= video_discard;
3254             break;
3255         case AVMEDIA_TYPE_DATA:
3256             break;
3257         case AVMEDIA_TYPE_SUBTITLE:
3258             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3259             if(subtitle_disable)
3260                 st->discard = AVDISCARD_ALL;
3261             break;
3262         case AVMEDIA_TYPE_ATTACHMENT:
3263         case AVMEDIA_TYPE_UNKNOWN:
3264             nb_icodecs++;
3265             break;
3266         default:
3267             abort();
3268         }
3269     }
3270
3271     input_files[nb_input_files] = ic;
3272     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3273     /* dump the file content */
3274     if (verbose >= 0)
3275         dump_format(ic, nb_input_files, filename, 0);
3276
3277     nb_input_files++;
3278
3279     video_channel = 0;
3280
3281     av_freep(&video_codec_name);
3282     av_freep(&audio_codec_name);
3283     av_freep(&subtitle_codec_name);
3284 }
3285
3286 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3287                                          int *has_subtitle_ptr)
3288 {
3289     int has_video, has_audio, has_subtitle, i, j;
3290     AVFormatContext *ic;
3291
3292     has_video = 0;
3293     has_audio = 0;
3294     has_subtitle = 0;
3295     for(j=0;j<nb_input_files;j++) {
3296         ic = input_files[j];
3297         for(i=0;i<ic->nb_streams;i++) {
3298             AVCodecContext *enc = ic->streams[i]->codec;
3299             switch(enc->codec_type) {
3300             case AVMEDIA_TYPE_AUDIO:
3301                 has_audio = 1;
3302                 break;
3303             case AVMEDIA_TYPE_VIDEO:
3304                 has_video = 1;
3305                 break;
3306             case AVMEDIA_TYPE_SUBTITLE:
3307                 has_subtitle = 1;
3308                 break;
3309             case AVMEDIA_TYPE_DATA:
3310             case AVMEDIA_TYPE_ATTACHMENT:
3311             case AVMEDIA_TYPE_UNKNOWN:
3312                 break;
3313             default:
3314                 abort();
3315             }
3316         }
3317     }
3318     *has_video_ptr = has_video;
3319     *has_audio_ptr = has_audio;
3320     *has_subtitle_ptr = has_subtitle;
3321 }
3322
3323 static void new_video_stream(AVFormatContext *oc)
3324 {
3325     AVStream *st;
3326     AVCodecContext *video_enc;
3327     enum CodecID codec_id;
3328
3329     st = av_new_stream(oc, oc->nb_streams);
3330     if (!st) {
3331         fprintf(stderr, "Could not alloc stream\n");
3332         av_exit(1);
3333     }
3334     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3335     bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3336     video_bitstream_filters= NULL;
3337
3338     avcodec_thread_init(st->codec, thread_count);
3339
3340     video_enc = st->codec;
3341
3342     if(video_codec_tag)
3343         video_enc->codec_tag= video_codec_tag;
3344
3345     if(   (video_global_header&1)
3346        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3347         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3348         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3349     }
3350     if(video_global_header&2){
3351         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3352         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3353     }
3354
3355     if (video_stream_copy) {
3356         st->stream_copy = 1;
3357         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3358         video_enc->sample_aspect_ratio =
3359         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3360     } else {
3361         const char *p;
3362         int i;
3363         AVCodec *codec;
3364         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3365
3366         if (video_codec_name) {
3367             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3368             codec = avcodec_find_encoder_by_name(video_codec_name);
3369             output_codecs[nb_ocodecs] = codec;
3370         } else {
3371             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3372             codec = avcodec_find_encoder(codec_id);
3373         }
3374
3375         video_enc->codec_id = codec_id;
3376
3377         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3378
3379         if (codec && codec->supported_framerates && !force_fps)
3380             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3381         video_enc->time_base.den = fps.num;
3382         video_enc->time_base.num = fps.den;
3383
3384         video_enc->width = frame_width;
3385         video_enc->height = frame_height;
3386         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3387         video_enc->pix_fmt = frame_pix_fmt;
3388         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3389
3390         choose_pixel_fmt(st, codec);
3391
3392         if (intra_only)
3393             video_enc->gop_size = 0;
3394         if (video_qscale || same_quality) {
3395             video_enc->flags |= CODEC_FLAG_QSCALE;
3396             video_enc->global_quality=
3397                 st->quality = FF_QP2LAMBDA * video_qscale;
3398         }
3399
3400         if(intra_matrix)
3401             video_enc->intra_matrix = intra_matrix;
3402         if(inter_matrix)
3403             video_enc->inter_matrix = inter_matrix;
3404
3405         p= video_rc_override_string;
3406         for(i=0; p; i++){
3407             int start, end, q;
3408             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3409             if(e!=3){
3410                 fprintf(stderr, "error parsing rc_override\n");
3411                 av_exit(1);
3412             }
3413             video_enc->rc_override=
3414                 av_realloc(video_enc->rc_override,
3415                            sizeof(RcOverride)*(i+1));
3416             video_enc->rc_override[i].start_frame= start;
3417             video_enc->rc_override[i].end_frame  = end;
3418             if(q>0){
3419                 video_enc->rc_override[i].qscale= q;
3420                 video_enc->rc_override[i].quality_factor= 1.0;
3421             }
3422             else{
3423                 video_enc->rc_override[i].qscale= 0;
3424                 video_enc->rc_override[i].quality_factor= -q/100.0;
3425             }
3426             p= strchr(p, '/');
3427             if(p) p++;
3428         }
3429         video_enc->rc_override_count=i;
3430         if (!video_enc->rc_initial_buffer_occupancy)
3431             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3432         video_enc->me_threshold= me_threshold;
3433         video_enc->intra_dc_precision= intra_dc_precision - 8;
3434
3435         if (do_psnr)
3436             video_enc->flags|= CODEC_FLAG_PSNR;
3437
3438         /* two pass mode */
3439         if (do_pass) {
3440             if (do_pass == 1) {
3441                 video_enc->flags |= CODEC_FLAG_PASS1;
3442             } else {
3443                 video_enc->flags |= CODEC_FLAG_PASS2;
3444             }
3445         }
3446     }
3447     nb_ocodecs++;
3448     if (video_language) {
3449         av_metadata_set2(&st->metadata, "language", video_language, 0);
3450         av_freep(&video_language);
3451     }
3452
3453     /* reset some key parameters */
3454     video_disable = 0;
3455     av_freep(&video_codec_name);
3456     video_stream_copy = 0;
3457     frame_pix_fmt = PIX_FMT_NONE;
3458 }
3459
3460 static void new_audio_stream(AVFormatContext *oc)
3461 {
3462     AVStream *st;
3463     AVCodecContext *audio_enc;
3464     enum CodecID codec_id;
3465
3466     st = av_new_stream(oc, oc->nb_streams);
3467     if (!st) {
3468         fprintf(stderr, "Could not alloc stream\n");
3469         av_exit(1);
3470     }
3471     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3472
3473     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3474     audio_bitstream_filters= NULL;
3475
3476     avcodec_thread_init(st->codec, thread_count);
3477
3478     audio_enc = st->codec;
3479     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3480
3481     if(audio_codec_tag)
3482         audio_enc->codec_tag= audio_codec_tag;
3483
3484     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3485         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3486         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3487     }
3488     if (audio_stream_copy) {
3489         st->stream_copy = 1;
3490         audio_enc->channels = audio_channels;
3491         audio_enc->sample_rate = audio_sample_rate;
3492     } else {
3493         AVCodec *codec;
3494
3495         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3496
3497         if (audio_codec_name) {
3498             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3499             codec = avcodec_find_encoder_by_name(audio_codec_name);
3500             output_codecs[nb_ocodecs] = codec;
3501         } else {
3502             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3503             codec = avcodec_find_encoder(codec_id);
3504         }
3505         audio_enc->codec_id = codec_id;
3506
3507         if (audio_qscale > QSCALE_NONE) {
3508             audio_enc->flags |= CODEC_FLAG_QSCALE;
3509             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3510         }
3511         audio_enc->channels = audio_channels;
3512         audio_enc->sample_fmt = audio_sample_fmt;
3513         audio_enc->sample_rate = audio_sample_rate;
3514         audio_enc->channel_layout = channel_layout;
3515         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3516             audio_enc->channel_layout = 0;
3517         choose_sample_fmt(st, codec);
3518         choose_sample_rate(st, codec);
3519     }
3520     nb_ocodecs++;
3521     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3522     if (audio_language) {
3523         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3524         av_freep(&audio_language);
3525     }
3526
3527     /* reset some key parameters */
3528     audio_disable = 0;
3529     av_freep(&audio_codec_name);
3530     audio_stream_copy = 0;
3531 }
3532
3533 static void new_subtitle_stream(AVFormatContext *oc)
3534 {
3535     AVStream *st;
3536     AVCodecContext *subtitle_enc;
3537
3538     st = av_new_stream(oc, oc->nb_streams);
3539     if (!st) {
3540         fprintf(stderr, "Could not alloc stream\n");
3541         av_exit(1);
3542     }
3543     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3544
3545     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3546     subtitle_bitstream_filters= NULL;
3547
3548     subtitle_enc = st->codec;
3549     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3550
3551     if(subtitle_codec_tag)
3552         subtitle_enc->codec_tag= subtitle_codec_tag;
3553
3554     if (subtitle_stream_copy) {
3555         st->stream_copy = 1;
3556     } else {
3557         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3558         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1);
3559         output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3560     }
3561     nb_ocodecs++;
3562
3563     if (subtitle_language) {
3564         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3565         av_freep(&subtitle_language);
3566     }
3567
3568     subtitle_disable = 0;
3569     av_freep(&subtitle_codec_name);
3570     subtitle_stream_copy = 0;
3571 }
3572
3573 static void opt_new_audio_stream(void)
3574 {
3575     AVFormatContext *oc;
3576     if (nb_output_files <= 0) {
3577         fprintf(stderr, "At least one output file must be specified\n");
3578         av_exit(1);
3579     }
3580     oc = output_files[nb_output_files - 1];
3581     new_audio_stream(oc);
3582 }
3583
3584 static void opt_new_video_stream(void)
3585 {
3586     AVFormatContext *oc;
3587     if (nb_output_files <= 0) {
3588         fprintf(stderr, "At least one output file must be specified\n");
3589         av_exit(1);
3590     }
3591     oc = output_files[nb_output_files - 1];
3592     new_video_stream(oc);
3593 }
3594
3595 static void opt_new_subtitle_stream(void)
3596 {
3597     AVFormatContext *oc;
3598     if (nb_output_files <= 0) {
3599         fprintf(stderr, "At least one output file must be specified\n");
3600         av_exit(1);
3601     }
3602     oc = output_files[nb_output_files - 1];
3603     new_subtitle_stream(oc);
3604 }
3605
3606 static void opt_output_file(const char *filename)
3607 {
3608     AVFormatContext *oc;
3609     int err, use_video, use_audio, use_subtitle;
3610     int input_has_video, input_has_audio, input_has_subtitle;
3611     AVFormatParameters params, *ap = &params;
3612     AVOutputFormat *file_oformat;
3613
3614     if (!strcmp(filename, "-"))
3615         filename = "pipe:";
3616
3617     oc = avformat_alloc_context();
3618     if (!oc) {
3619         print_error(filename, AVERROR(ENOMEM));
3620         av_exit(1);
3621     }
3622
3623     if (last_asked_format) {
3624         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3625         if (!file_oformat) {
3626             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3627             av_exit(1);
3628         }
3629         last_asked_format = NULL;
3630     } else {
3631         file_oformat = av_guess_format(NULL, filename, NULL);
3632         if (!file_oformat) {
3633             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3634                     filename);
3635             av_exit(1);
3636         }
3637     }
3638
3639     oc->oformat = file_oformat;
3640     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3641
3642     if (!strcmp(file_oformat->name, "ffm") &&
3643         av_strstart(filename, "http:", NULL)) {
3644         /* special case for files sent to ffserver: we get the stream
3645            parameters from ffserver */
3646         int err = read_ffserver_streams(oc, filename);
3647         if (err < 0) {
3648             print_error(filename, err);
3649             av_exit(1);
3650         }
3651     } else {
3652         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3653         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3654         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3655
3656         /* disable if no corresponding type found and at least one
3657            input file */
3658         if (nb_input_files > 0) {
3659             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3660                                          &input_has_subtitle);
3661             if (!input_has_video)
3662                 use_video = 0;
3663             if (!input_has_audio)
3664                 use_audio = 0;
3665             if (!input_has_subtitle)
3666                 use_subtitle = 0;
3667         }
3668
3669         /* manual disable */
3670         if (audio_disable) {
3671             use_audio = 0;
3672         }
3673         if (video_disable) {
3674             use_video = 0;
3675         }
3676         if (subtitle_disable) {
3677             use_subtitle = 0;
3678         }
3679
3680         if (use_video) {
3681             new_video_stream(oc);
3682         }
3683
3684         if (use_audio) {
3685             new_audio_stream(oc);
3686         }
3687
3688         if (use_subtitle) {
3689             new_subtitle_stream(oc);
3690         }
3691
3692         oc->timestamp = rec_timestamp;
3693
3694         for(; metadata_count>0; metadata_count--){
3695             av_metadata_set2(&oc->metadata, metadata[metadata_count-1].key,
3696                                             metadata[metadata_count-1].value, 0);
3697         }
3698         av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
3699     }
3700
3701     output_files[nb_output_files++] = oc;