Tweak texi2pod.pl to make it print the various sections in the
[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 unsigned 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 unsigned 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 unsigned 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             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2160
2161             if (extra_size > INT_MAX)
2162                 goto fail;
2163
2164             /* if stream_copy is selected, no need to decode or encode */
2165             codec->codec_id = icodec->codec_id;
2166             codec->codec_type = icodec->codec_type;
2167
2168             if(!codec->codec_tag){
2169                 if(   !os->oformat->codec_tag
2170                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2171                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2172                     codec->codec_tag = icodec->codec_tag;
2173             }
2174
2175             codec->bit_rate = icodec->bit_rate;
2176             codec->extradata= av_mallocz(extra_size);
2177             if (!codec->extradata)
2178                 goto fail;
2179             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2180             codec->extradata_size= icodec->extradata_size;
2181             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){
2182                 codec->time_base = icodec->time_base;
2183                 codec->time_base.num *= icodec->ticks_per_frame;
2184             }else
2185                 codec->time_base = ist->st->time_base;
2186             switch(codec->codec_type) {
2187             case AVMEDIA_TYPE_AUDIO:
2188                 if(audio_volume != 256) {
2189                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2190                     av_exit(1);
2191                 }
2192                 codec->channel_layout = icodec->channel_layout;
2193                 codec->sample_rate = icodec->sample_rate;
2194                 codec->channels = icodec->channels;
2195                 codec->frame_size = icodec->frame_size;
2196                 codec->block_align= icodec->block_align;
2197                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2198                     codec->block_align= 0;
2199                 if(codec->codec_id == CODEC_ID_AC3)
2200                     codec->block_align= 0;
2201                 break;
2202             case AVMEDIA_TYPE_VIDEO:
2203                 codec->pix_fmt = icodec->pix_fmt;
2204                 codec->width = icodec->width;
2205                 codec->height = icodec->height;
2206                 codec->has_b_frames = icodec->has_b_frames;
2207                 break;
2208             case AVMEDIA_TYPE_SUBTITLE:
2209                 codec->width = icodec->width;
2210                 codec->height = icodec->height;
2211                 break;
2212             default:
2213                 abort();
2214             }
2215         } else {
2216             switch(codec->codec_type) {
2217             case AVMEDIA_TYPE_AUDIO:
2218                 ost->fifo= av_fifo_alloc(1024);
2219                 if(!ost->fifo)
2220                     goto fail;
2221                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2222                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2223                 icodec->request_channels = codec->channels;
2224                 ist->decoding_needed = 1;
2225                 ost->encoding_needed = 1;
2226                 break;
2227             case AVMEDIA_TYPE_VIDEO:
2228                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2229                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2230                     av_exit(1);
2231                 }
2232                 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2233                 ost->video_resample = ((codec->width != icodec->width -
2234                                 (frame_leftBand + frame_rightBand)) ||
2235                         (codec->height != icodec->height -
2236                                 (frame_topBand  + frame_bottomBand)) ||
2237                         (codec->pix_fmt != icodec->pix_fmt));
2238                 if (ost->video_crop) {
2239                     ost->topBand    = ost->original_topBand    = frame_topBand;
2240                     ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2241                     ost->leftBand   = ost->original_leftBand   = frame_leftBand;
2242                     ost->rightBand  = ost->original_rightBand  = frame_rightBand;
2243                 }
2244                 if (ost->video_resample) {
2245                     avcodec_get_frame_defaults(&ost->pict_tmp);
2246                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2247                                          codec->width, codec->height)) {
2248                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2249                         av_exit(1);
2250                     }
2251                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2252                     ost->img_resample_ctx = sws_getContext(
2253                             icodec->width - (frame_leftBand + frame_rightBand),
2254                             icodec->height - (frame_topBand + frame_bottomBand),
2255                             icodec->pix_fmt,
2256                             codec->width,
2257                             codec->height,
2258                             codec->pix_fmt,
2259                             sws_flags, NULL, NULL, NULL);
2260                     if (ost->img_resample_ctx == NULL) {
2261                         fprintf(stderr, "Cannot get resampling context\n");
2262                         av_exit(1);
2263                     }
2264
2265 #if !CONFIG_AVFILTER
2266                     ost->original_height = icodec->height;
2267                     ost->original_width  = icodec->width;
2268 #endif
2269                     codec->bits_per_raw_sample= 0;
2270                 }
2271                 ost->resample_height = icodec->height - (frame_topBand  + frame_bottomBand);
2272                 ost->resample_width  = icodec->width  - (frame_leftBand + frame_rightBand);
2273                 ost->resample_pix_fmt= icodec->pix_fmt;
2274                 ost->encoding_needed = 1;
2275                 ist->decoding_needed = 1;
2276
2277 #if CONFIG_AVFILTER
2278                 if (configure_filters(ist, ost)) {
2279                     fprintf(stderr, "Error opening filters!\n");
2280                     exit(1);
2281                 }
2282 #endif
2283                 break;
2284             case AVMEDIA_TYPE_SUBTITLE:
2285                 ost->encoding_needed = 1;
2286                 ist->decoding_needed = 1;
2287                 break;
2288             default:
2289                 abort();
2290                 break;
2291             }
2292             /* two pass mode */
2293             if (ost->encoding_needed &&
2294                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2295                 char logfilename[1024];
2296                 FILE *f;
2297
2298                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2299                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2300                          i);
2301                 if (codec->flags & CODEC_FLAG_PASS1) {
2302                     f = fopen(logfilename, "wb");
2303                     if (!f) {
2304                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2305                         av_exit(1);
2306                     }
2307                     ost->logfile = f;
2308                 } else {
2309                     char  *logbuffer;
2310                     size_t logbuffer_size;
2311                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2312                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2313                         av_exit(1);
2314                     }
2315                     codec->stats_in = logbuffer;
2316                 }
2317             }
2318         }
2319         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2320             int size= codec->width * codec->height;
2321             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2322         }
2323     }
2324
2325     if (!bit_buffer)
2326         bit_buffer = av_malloc(bit_buffer_size);
2327     if (!bit_buffer) {
2328         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2329                 bit_buffer_size);
2330         ret = AVERROR(ENOMEM);
2331         goto fail;
2332     }
2333
2334     /* open each encoder */
2335     for(i=0;i<nb_ostreams;i++) {
2336         ost = ost_table[i];
2337         if (ost->encoding_needed) {
2338             AVCodec *codec = output_codecs[i];
2339             if (!codec)
2340                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2341             if (!codec) {
2342                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2343                          ost->st->codec->codec_id, ost->file_index, ost->index);
2344                 ret = AVERROR(EINVAL);
2345                 goto dump_format;
2346             }
2347             if (avcodec_open(ost->st->codec, codec) < 0) {
2348                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2349                         ost->file_index, ost->index);
2350                 ret = AVERROR(EINVAL);
2351                 goto dump_format;
2352             }
2353             extra_size += ost->st->codec->extradata_size;
2354         }
2355     }
2356
2357     /* open each decoder */
2358     for(i=0;i<nb_istreams;i++) {
2359         ist = ist_table[i];
2360         if (ist->decoding_needed) {
2361             AVCodec *codec = input_codecs[i];
2362             if (!codec)
2363                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2364             if (!codec) {
2365                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2366                         ist->st->codec->codec_id, ist->file_index, ist->index);
2367                 ret = AVERROR(EINVAL);
2368                 goto dump_format;
2369             }
2370             if (avcodec_open(ist->st->codec, codec) < 0) {
2371                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2372                         ist->file_index, ist->index);
2373                 ret = AVERROR(EINVAL);
2374                 goto dump_format;
2375             }
2376             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2377             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2378         }
2379     }
2380
2381     /* init pts */
2382     for(i=0;i<nb_istreams;i++) {
2383         AVStream *st;
2384         ist = ist_table[i];
2385         st= ist->st;
2386         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2387         ist->next_pts = AV_NOPTS_VALUE;
2388         ist->is_start = 1;
2389     }
2390
2391     /* set meta data information from input file if required */
2392     for (i=0;i<nb_meta_data_maps;i++) {
2393         AVFormatContext *out_file;
2394         AVFormatContext *in_file;
2395         AVMetadataTag *mtag;
2396
2397         int out_file_index = meta_data_maps[i].out_file;
2398         int in_file_index = meta_data_maps[i].in_file;
2399         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2400             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2401                      out_file_index, out_file_index, in_file_index);
2402             ret = AVERROR(EINVAL);
2403             goto dump_format;
2404         }
2405         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2406             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2407                      in_file_index, out_file_index, in_file_index);
2408             ret = AVERROR(EINVAL);
2409             goto dump_format;
2410         }
2411
2412         out_file = output_files[out_file_index];
2413         in_file = input_files[in_file_index];
2414
2415
2416         mtag=NULL;
2417         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2418             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2419         av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2420                                     in_file->iformat->metadata_conv);
2421     }
2422
2423     /* copy chapters from the first input file that has them*/
2424     for (i = 0; i < nb_input_files; i++) {
2425         if (!input_files[i]->nb_chapters)
2426             continue;
2427
2428         for (j = 0; j < nb_output_files; j++)
2429             if ((ret = copy_chapters(i, j)) < 0)
2430                 goto dump_format;
2431     }
2432
2433     /* open files and write file headers */
2434     for(i=0;i<nb_output_files;i++) {
2435         os = output_files[i];
2436         if (av_write_header(os) < 0) {
2437             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2438             ret = AVERROR(EINVAL);
2439             goto dump_format;
2440         }
2441         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2442             want_sdp = 0;
2443         }
2444     }
2445
2446  dump_format:
2447     /* dump the file output parameters - cannot be done before in case
2448        of stream copy */
2449     for(i=0;i<nb_output_files;i++) {
2450         dump_format(output_files[i], i, output_files[i]->filename, 1);
2451     }
2452
2453     /* dump the stream mapping */
2454     if (verbose >= 0) {
2455         fprintf(stderr, "Stream mapping:\n");
2456         for(i=0;i<nb_ostreams;i++) {
2457             ost = ost_table[i];
2458             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2459                     ist_table[ost->source_index]->file_index,
2460                     ist_table[ost->source_index]->index,
2461                     ost->file_index,
2462                     ost->index);
2463             if (ost->sync_ist != ist_table[ost->source_index])
2464                 fprintf(stderr, " [sync #%d.%d]",
2465                         ost->sync_ist->file_index,
2466                         ost->sync_ist->index);
2467             fprintf(stderr, "\n");
2468         }
2469     }
2470
2471     if (ret) {
2472         fprintf(stderr, "%s\n", error);
2473         goto fail;
2474     }
2475
2476     if (want_sdp) {
2477         print_sdp(output_files, nb_output_files);
2478     }
2479
2480     if (!using_stdin && verbose >= 0) {
2481         fprintf(stderr, "Press [q] to stop encoding\n");
2482         url_set_interrupt_cb(decode_interrupt_cb);
2483     }
2484     term_init();
2485
2486     timer_start = av_gettime();
2487
2488     for(; received_sigterm == 0;) {
2489         int file_index, ist_index;
2490         AVPacket pkt;
2491         double ipts_min;
2492         double opts_min;
2493
2494     redo:
2495         ipts_min= 1e100;
2496         opts_min= 1e100;
2497         /* if 'q' pressed, exits */
2498         if (!using_stdin) {
2499             if (q_pressed)
2500                 break;
2501             /* read_key() returns 0 on EOF */
2502             key = read_key();
2503             if (key == 'q')
2504                 break;
2505         }
2506
2507         /* select the stream that we must read now by looking at the
2508            smallest output pts */
2509         file_index = -1;
2510         for(i=0;i<nb_ostreams;i++) {
2511             double ipts, opts;
2512             ost = ost_table[i];
2513             os = output_files[ost->file_index];
2514             ist = ist_table[ost->source_index];
2515             if(ist->is_past_recording_time || no_packet[ist->file_index])
2516                 continue;
2517                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2518             ipts = (double)ist->pts;
2519             if (!file_table[ist->file_index].eof_reached){
2520                 if(ipts < ipts_min) {
2521                     ipts_min = ipts;
2522                     if(input_sync ) file_index = ist->file_index;
2523                 }
2524                 if(opts < opts_min) {
2525                     opts_min = opts;
2526                     if(!input_sync) file_index = ist->file_index;
2527                 }
2528             }
2529             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2530                 file_index= -1;
2531                 break;
2532             }
2533         }
2534         /* if none, if is finished */
2535         if (file_index < 0) {
2536             if(no_packet_count){
2537                 no_packet_count=0;
2538                 memset(no_packet, 0, sizeof(no_packet));
2539                 usleep(10000);
2540                 continue;
2541             }
2542             break;
2543         }
2544
2545         /* finish if limit size exhausted */
2546         if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2547             break;
2548
2549         /* read a frame from it and output it in the fifo */
2550         is = input_files[file_index];
2551         ret= av_read_frame(is, &pkt);
2552         if(ret == AVERROR(EAGAIN)){
2553             no_packet[file_index]=1;
2554             no_packet_count++;
2555             continue;
2556         }
2557         if (ret < 0) {
2558             file_table[file_index].eof_reached = 1;
2559             if (opt_shortest)
2560                 break;
2561             else
2562                 continue;
2563         }
2564
2565         no_packet_count=0;
2566         memset(no_packet, 0, sizeof(no_packet));
2567
2568         if (do_pkt_dump) {
2569             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2570         }
2571         /* the following test is needed in case new streams appear
2572            dynamically in stream : we ignore them */
2573         if (pkt.stream_index >= file_table[file_index].nb_streams)
2574             goto discard_packet;
2575         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2576         ist = ist_table[ist_index];
2577         if (ist->discard)
2578             goto discard_packet;
2579
2580         if (pkt.dts != AV_NOPTS_VALUE)
2581             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2582         if (pkt.pts != AV_NOPTS_VALUE)
2583             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2584
2585         if(input_files_ts_scale[file_index][pkt.stream_index]){
2586             if(pkt.pts != AV_NOPTS_VALUE)
2587                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2588             if(pkt.dts != AV_NOPTS_VALUE)
2589                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2590         }
2591
2592 //        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);
2593         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2594             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2595             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2596             int64_t delta= pkt_dts - ist->next_pts;
2597             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2598                 input_files_ts_offset[ist->file_index]-= delta;
2599                 if (verbose > 2)
2600                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2601                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2602                 if(pkt.pts != AV_NOPTS_VALUE)
2603                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2604             }
2605         }
2606
2607         /* finish if recording time exhausted */
2608         if (recording_time != INT64_MAX &&
2609             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2610             ist->is_past_recording_time = 1;
2611             goto discard_packet;
2612         }
2613
2614         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2615         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2616
2617             if (verbose >= 0)
2618                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2619                         ist->file_index, ist->index);
2620             if (exit_on_error)
2621                 av_exit(1);
2622             av_free_packet(&pkt);
2623             goto redo;
2624         }
2625
2626     discard_packet:
2627         av_free_packet(&pkt);
2628
2629         /* dump report by using the output first video and audio streams */
2630         print_report(output_files, ost_table, nb_ostreams, 0);
2631     }
2632
2633     /* at the end of stream, we must flush the decoder buffers */
2634     for(i=0;i<nb_istreams;i++) {
2635         ist = ist_table[i];
2636         if (ist->decoding_needed) {
2637             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2638         }
2639     }
2640
2641     term_exit();
2642
2643     /* write the trailer if needed and close file */
2644     for(i=0;i<nb_output_files;i++) {
2645         os = output_files[i];
2646         av_write_trailer(os);
2647     }
2648
2649     /* dump report by using the first video and audio streams */
2650     print_report(output_files, ost_table, nb_ostreams, 1);
2651
2652     /* close each encoder */
2653     for(i=0;i<nb_ostreams;i++) {
2654         ost = ost_table[i];
2655         if (ost->encoding_needed) {
2656             av_freep(&ost->st->codec->stats_in);
2657             avcodec_close(ost->st->codec);
2658         }
2659     }
2660
2661     /* close each decoder */
2662     for(i=0;i<nb_istreams;i++) {
2663         ist = ist_table[i];
2664         if (ist->decoding_needed) {
2665             avcodec_close(ist->st->codec);
2666         }
2667     }
2668 #if CONFIG_AVFILTER
2669     if (graph) {
2670         avfilter_graph_destroy(graph);
2671         av_freep(&graph);
2672     }
2673 #endif
2674
2675     /* finished ! */
2676     ret = 0;
2677
2678  fail:
2679     av_freep(&bit_buffer);
2680     av_free(file_table);
2681
2682     if (ist_table) {
2683         for(i=0;i<nb_istreams;i++) {
2684             ist = ist_table[i];
2685             av_free(ist);
2686         }
2687         av_free(ist_table);
2688     }
2689     if (ost_table) {
2690         for(i=0;i<nb_ostreams;i++) {
2691             ost = ost_table[i];
2692             if (ost) {
2693                 if (ost->st->stream_copy)
2694                     av_freep(&ost->st->codec->extradata);
2695                 if (ost->logfile) {
2696                     fclose(ost->logfile);
2697                     ost->logfile = NULL;
2698                 }
2699                 av_fifo_free(ost->fifo); /* works even if fifo is not
2700                                              initialized but set to zero */
2701                 av_free(ost->pict_tmp.data[0]);
2702                 if (ost->video_resample)
2703                     sws_freeContext(ost->img_resample_ctx);
2704                 if (ost->resample)
2705                     audio_resample_close(ost->resample);
2706                 if (ost->reformat_ctx)
2707                     av_audio_convert_free(ost->reformat_ctx);
2708                 av_free(ost);
2709             }
2710         }
2711         av_free(ost_table);
2712     }
2713     return ret;
2714 }
2715
2716 static void opt_format(const char *arg)
2717 {
2718     /* compatibility stuff for pgmyuv */
2719     if (!strcmp(arg, "pgmyuv")) {
2720         pgmyuv_compatibility_hack=1;
2721 //        opt_image_format(arg);
2722         arg = "image2";
2723         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2724     }
2725
2726     last_asked_format = arg;
2727 }
2728
2729 static void opt_video_rc_override_string(const char *arg)
2730 {
2731     video_rc_override_string = arg;
2732 }
2733
2734 static int opt_me_threshold(const char *opt, const char *arg)
2735 {
2736     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2737     return 0;
2738 }
2739
2740 static int opt_verbose(const char *opt, const char *arg)
2741 {
2742     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2743     return 0;
2744 }
2745
2746 static int opt_frame_rate(const char *opt, const char *arg)
2747 {
2748     if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2749         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2750         av_exit(1);
2751     }
2752     return 0;
2753 }
2754
2755 static int opt_bitrate(const char *opt, const char *arg)
2756 {
2757     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2758
2759     opt_default(opt, arg);
2760
2761     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2762         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2763
2764     return 0;
2765 }
2766
2767 static void opt_frame_crop_top(const char *arg)
2768 {
2769     frame_topBand = atoi(arg);
2770     if (frame_topBand < 0) {
2771         fprintf(stderr, "Incorrect top crop size\n");
2772         av_exit(1);
2773     }
2774     if ((frame_topBand) >= frame_height){
2775         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2776         av_exit(1);
2777     }
2778     frame_height -= frame_topBand;
2779 }
2780
2781 static void opt_frame_crop_bottom(const char *arg)
2782 {
2783     frame_bottomBand = atoi(arg);
2784     if (frame_bottomBand < 0) {
2785         fprintf(stderr, "Incorrect bottom crop size\n");
2786         av_exit(1);
2787     }
2788     if ((frame_bottomBand) >= frame_height){
2789         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2790         av_exit(1);
2791     }
2792     frame_height -= frame_bottomBand;
2793 }
2794
2795 static void opt_frame_crop_left(const char *arg)
2796 {
2797     frame_leftBand = atoi(arg);
2798     if (frame_leftBand < 0) {
2799         fprintf(stderr, "Incorrect left crop size\n");
2800         av_exit(1);
2801     }
2802     if ((frame_leftBand) >= frame_width){
2803         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2804         av_exit(1);
2805     }
2806     frame_width -= frame_leftBand;
2807 }
2808
2809 static void opt_frame_crop_right(const char *arg)
2810 {
2811     frame_rightBand = atoi(arg);
2812     if (frame_rightBand < 0) {
2813         fprintf(stderr, "Incorrect right crop size\n");
2814         av_exit(1);
2815     }
2816     if ((frame_rightBand) >= frame_width){
2817         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2818         av_exit(1);
2819     }
2820     frame_width -= frame_rightBand;
2821 }
2822
2823 static void opt_frame_size(const char *arg)
2824 {
2825     if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2826         fprintf(stderr, "Incorrect frame size\n");
2827         av_exit(1);
2828     }
2829 }
2830
2831 static void opt_pad(const char *arg) {
2832     fprintf(stderr, "Please use vf=pad\n");
2833     av_exit(1);
2834 }
2835
2836 static void opt_frame_pix_fmt(const char *arg)
2837 {
2838     if (strcmp(arg, "list")) {
2839         frame_pix_fmt = av_get_pix_fmt(arg);
2840         if (frame_pix_fmt == PIX_FMT_NONE) {
2841             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2842             av_exit(1);
2843         }
2844     } else {
2845         show_pix_fmts();
2846         av_exit(0);
2847     }
2848 }
2849
2850 static void opt_frame_aspect_ratio(const char *arg)
2851 {
2852     int x = 0, y = 0;
2853     double ar = 0;
2854     const char *p;
2855     char *end;
2856
2857     p = strchr(arg, ':');
2858     if (p) {
2859         x = strtol(arg, &end, 10);
2860         if (end == p)
2861             y = strtol(end+1, &end, 10);
2862         if (x > 0 && y > 0)
2863             ar = (double)x / (double)y;
2864     } else
2865         ar = strtod(arg, NULL);
2866
2867     if (!ar) {
2868         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2869         av_exit(1);
2870     }
2871     frame_aspect_ratio = ar;
2872 }
2873
2874 static int opt_metadata(const char *opt, const char *arg)
2875 {
2876     char *mid= strchr(arg, '=');
2877
2878     if(!mid){
2879         fprintf(stderr, "Missing =\n");
2880         av_exit(1);
2881     }
2882     *mid++= 0;
2883
2884     metadata_count++;
2885     metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2886     metadata[metadata_count-1].key  = av_strdup(arg);
2887     metadata[metadata_count-1].value= av_strdup(mid);
2888
2889     return 0;
2890 }
2891
2892 static void opt_qscale(const char *arg)
2893 {
2894     video_qscale = atof(arg);
2895     if (video_qscale <= 0 ||
2896         video_qscale > 255) {
2897         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2898         av_exit(1);
2899     }
2900 }
2901
2902 static void opt_top_field_first(const char *arg)
2903 {
2904     top_field_first= atoi(arg);
2905 }
2906
2907 static int opt_thread_count(const char *opt, const char *arg)
2908 {
2909     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2910 #if !HAVE_THREADS
2911     if (verbose >= 0)
2912         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2913 #endif
2914     return 0;
2915 }
2916
2917 static void opt_audio_sample_fmt(const char *arg)
2918 {
2919     if (strcmp(arg, "list"))
2920         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2921     else {
2922         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2923         av_exit(0);
2924     }
2925 }
2926
2927 static int opt_audio_rate(const char *opt, const char *arg)
2928 {
2929     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2930     return 0;
2931 }
2932
2933 static int opt_audio_channels(const char *opt, const char *arg)
2934 {
2935     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2936     return 0;
2937 }
2938
2939 static void opt_video_channel(const char *arg)
2940 {
2941     video_channel = strtol(arg, NULL, 0);
2942 }
2943
2944 static void opt_video_standard(const char *arg)
2945 {
2946     video_standard = av_strdup(arg);
2947 }
2948
2949 static void opt_codec(int *pstream_copy, char **pcodec_name,
2950                       int codec_type, const char *arg)
2951 {
2952     av_freep(pcodec_name);
2953     if (!strcmp(arg, "copy")) {
2954         *pstream_copy = 1;
2955     } else {
2956         *pcodec_name = av_strdup(arg);
2957     }
2958 }
2959
2960 static void opt_audio_codec(const char *arg)
2961 {
2962     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2963 }
2964
2965 static void opt_audio_tag(const char *arg)
2966 {
2967     char *tail;
2968     audio_codec_tag= strtol(arg, &tail, 0);
2969
2970     if(!tail || *tail)
2971         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2972 }
2973
2974 static void opt_video_tag(const char *arg)
2975 {
2976     char *tail;
2977     video_codec_tag= strtol(arg, &tail, 0);
2978
2979     if(!tail || *tail)
2980         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2981 }
2982
2983 static void opt_video_codec(const char *arg)
2984 {
2985     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2986 }
2987
2988 static void opt_subtitle_codec(const char *arg)
2989 {
2990     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2991 }
2992
2993 static void opt_subtitle_tag(const char *arg)
2994 {
2995     char *tail;
2996     subtitle_codec_tag= strtol(arg, &tail, 0);
2997
2998     if(!tail || *tail)
2999         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
3000 }
3001
3002 static void opt_map(const char *arg)
3003 {
3004     AVStreamMap *m;
3005     char *p;
3006
3007     m = &stream_maps[nb_stream_maps++];
3008
3009     m->file_index = strtol(arg, &p, 0);
3010     if (*p)
3011         p++;
3012
3013     m->stream_index = strtol(p, &p, 0);
3014     if (*p) {
3015         p++;
3016         m->sync_file_index = strtol(p, &p, 0);
3017         if (*p)
3018             p++;
3019         m->sync_stream_index = strtol(p, &p, 0);
3020     } else {
3021         m->sync_file_index = m->file_index;
3022         m->sync_stream_index = m->stream_index;
3023     }
3024 }
3025
3026 static void opt_map_meta_data(const char *arg)
3027 {
3028     AVMetaDataMap *m;
3029     char *p;
3030
3031     m = &meta_data_maps[nb_meta_data_maps++];
3032
3033     m->out_file = strtol(arg, &p, 0);
3034     if (*p)
3035         p++;
3036
3037     m->in_file = strtol(p, &p, 0);
3038 }
3039
3040 static void opt_input_ts_scale(const char *arg)
3041 {
3042     unsigned int stream;
3043     double scale;
3044     char *p;
3045
3046     stream = strtol(arg, &p, 0);
3047     if (*p)
3048         p++;
3049     scale= strtod(p, &p);
3050
3051     if(stream >= MAX_STREAMS)
3052         av_exit(1);
3053
3054     input_files_ts_scale[nb_input_files][stream]= scale;
3055 }
3056
3057 static int opt_recording_time(const char *opt, const char *arg)
3058 {
3059     recording_time = parse_time_or_die(opt, arg, 1);
3060     return 0;
3061 }
3062
3063 static int opt_start_time(const char *opt, const char *arg)
3064 {
3065     start_time = parse_time_or_die(opt, arg, 1);
3066     return 0;
3067 }
3068
3069 static int opt_rec_timestamp(const char *opt, const char *arg)
3070 {
3071     rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3072     return 0;
3073 }
3074
3075 static int opt_input_ts_offset(const char *opt, const char *arg)
3076 {
3077     input_ts_offset = parse_time_or_die(opt, arg, 1);
3078     return 0;
3079 }
3080
3081 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3082 {
3083     const char *codec_string = encoder ? "encoder" : "decoder";
3084     AVCodec *codec;
3085
3086     if(!name)
3087         return CODEC_ID_NONE;
3088     codec = encoder ?
3089         avcodec_find_encoder_by_name(name) :
3090         avcodec_find_decoder_by_name(name);
3091     if(!codec) {
3092         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3093         av_exit(1);
3094     }
3095     if(codec->type != type) {
3096         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3097         av_exit(1);
3098     }
3099     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3100        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3101         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3102                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3103                 codec_string, codec->name);
3104         codec = encoder ?
3105             avcodec_find_encoder(codec->id) :
3106             avcodec_find_decoder(codec->id);
3107         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3108             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3109                     codec_string, codec->name);
3110         av_exit(1);
3111     }
3112     return codec->id;
3113 }
3114
3115 static void opt_input_file(const char *filename)
3116 {
3117     AVFormatContext *ic;
3118     AVFormatParameters params, *ap = &params;
3119     AVInputFormat *file_iformat = NULL;
3120     int err, i, ret, rfps, rfps_base;
3121     int64_t timestamp;
3122
3123     if (last_asked_format) {
3124         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3125             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3126             av_exit(1);
3127         }
3128         last_asked_format = NULL;
3129     }
3130
3131     if (!strcmp(filename, "-"))
3132         filename = "pipe:";
3133
3134     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3135                     !strcmp(filename, "/dev/stdin");
3136
3137     /* get default parameters from command line */
3138     ic = avformat_alloc_context();
3139     if (!ic) {
3140         print_error(filename, AVERROR(ENOMEM));
3141         av_exit(1);
3142     }
3143
3144     memset(ap, 0, sizeof(*ap));
3145     ap->prealloced_context = 1;
3146     ap->sample_rate = audio_sample_rate;
3147     ap->channels = audio_channels;
3148     ap->time_base.den = frame_rate.num;
3149     ap->time_base.num = frame_rate.den;
3150     ap->width = frame_width;
3151     ap->height = frame_height;
3152     ap->pix_fmt = frame_pix_fmt;
3153    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3154     ap->channel = video_channel;
3155     ap->standard = video_standard;
3156
3157     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3158
3159     ic->video_codec_id   =
3160         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3161                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3162     ic->audio_codec_id   =
3163         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3164                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3165     ic->subtitle_codec_id=
3166         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3167                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3168     ic->flags |= AVFMT_FLAG_NONBLOCK;
3169
3170     if(pgmyuv_compatibility_hack)
3171         ic->video_codec_id= CODEC_ID_PGMYUV;
3172
3173     /* open the input file with generic libav function */
3174     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3175     if (err < 0) {
3176         print_error(filename, err);
3177         av_exit(1);
3178     }
3179     if(opt_programid) {
3180         int i, j;
3181         int found=0;
3182         for(i=0; i<ic->nb_streams; i++){
3183             ic->streams[i]->discard= AVDISCARD_ALL;
3184         }
3185         for(i=0; i<ic->nb_programs; i++){
3186             AVProgram *p= ic->programs[i];
3187             if(p->id != opt_programid){
3188                 p->discard = AVDISCARD_ALL;
3189             }else{
3190                 found=1;
3191                 for(j=0; j<p->nb_stream_indexes; j++){
3192                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3193                 }
3194             }
3195         }
3196         if(!found){
3197             fprintf(stderr, "Specified program id not found\n");
3198             av_exit(1);
3199         }
3200         opt_programid=0;
3201     }
3202
3203     ic->loop_input = loop_input;
3204
3205     /* If not enough info to get the stream parameters, we decode the
3206        first frames to get it. (used in mpeg case for example) */
3207     ret = av_find_stream_info(ic);
3208     if (ret < 0 && verbose >= 0) {
3209         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3210         av_exit(1);
3211     }
3212
3213     timestamp = start_time;
3214     /* add the stream start time */
3215     if (ic->start_time != AV_NOPTS_VALUE)
3216         timestamp += ic->start_time;
3217
3218     /* if seeking requested, we execute it */
3219     if (start_time != 0) {
3220         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3221         if (ret < 0) {
3222             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3223                     filename, (double)timestamp / AV_TIME_BASE);
3224         }
3225         /* reset seek info */
3226         start_time = 0;
3227     }
3228
3229     /* update the current parameters so that they match the one of the input stream */
3230     for(i=0;i<ic->nb_streams;i++) {
3231         AVStream *st = ic->streams[i];
3232         AVCodecContext *enc = st->codec;
3233         avcodec_thread_init(enc, thread_count);
3234         switch(enc->codec_type) {
3235         case AVMEDIA_TYPE_AUDIO:
3236             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3237             //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3238             channel_layout = enc->channel_layout;
3239             audio_channels = enc->channels;
3240             audio_sample_rate = enc->sample_rate;
3241             audio_sample_fmt = enc->sample_fmt;
3242             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3243             if(audio_disable)
3244                 st->discard= AVDISCARD_ALL;
3245             break;
3246         case AVMEDIA_TYPE_VIDEO:
3247             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3248             frame_height = enc->height;
3249             frame_width = enc->width;
3250             if(ic->streams[i]->sample_aspect_ratio.num)
3251                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3252             else
3253                 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3254             frame_aspect_ratio *= (float) enc->width / enc->height;
3255             frame_pix_fmt = enc->pix_fmt;
3256             rfps      = ic->streams[i]->r_frame_rate.num;
3257             rfps_base = ic->streams[i]->r_frame_rate.den;
3258             if(enc->lowres) {
3259                 enc->flags |= CODEC_FLAG_EMU_EDGE;
3260                 frame_height >>= enc->lowres;
3261                 frame_width  >>= enc->lowres;
3262             }
3263             if(me_threshold)
3264                 enc->debug |= FF_DEBUG_MV;
3265
3266             if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3267
3268                 if (verbose >= 0)
3269                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3270                             i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3271
3272                     (float)rfps / rfps_base, rfps, rfps_base);
3273             }
3274             /* update the current frame rate to match the stream frame rate */
3275             frame_rate.num = rfps;
3276             frame_rate.den = rfps_base;
3277
3278             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3279             if(video_disable)
3280                 st->discard= AVDISCARD_ALL;
3281             else if(video_discard)
3282                 st->discard= video_discard;
3283             break;
3284         case AVMEDIA_TYPE_DATA:
3285             break;
3286         case AVMEDIA_TYPE_SUBTITLE:
3287             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3288             if(subtitle_disable)
3289                 st->discard = AVDISCARD_ALL;
3290             break;
3291         case AVMEDIA_TYPE_ATTACHMENT:
3292         case AVMEDIA_TYPE_UNKNOWN:
3293             nb_icodecs++;
3294             break;
3295         default:
3296             abort();
3297         }
3298     }
3299
3300     input_files[nb_input_files] = ic;
3301     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3302     /* dump the file content */
3303     if (verbose >= 0)
3304         dump_format(ic, nb_input_files, filename, 0);
3305
3306     nb_input_files++;
3307
3308     video_channel = 0;
3309
3310     av_freep(&video_codec_name);
3311     av_freep(&audio_codec_name);
3312     av_freep(&subtitle_codec_name);
3313 }
3314
3315 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3316                                          int *has_subtitle_ptr)
3317 {
3318     int has_video, has_audio, has_subtitle, i, j;
3319     AVFormatContext *ic;
3320
3321     has_video = 0;
3322     has_audio = 0;
3323     has_subtitle = 0;
3324     for(j=0;j<nb_input_files;j++) {
3325         ic = input_files[j];
3326         for(i=0;i<ic->nb_streams;i++) {
3327             AVCodecContext *enc = ic->streams[i]->codec;
3328             switch(enc->codec_type) {
3329             case AVMEDIA_TYPE_AUDIO:
3330                 has_audio = 1;
3331                 break;
3332             case AVMEDIA_TYPE_VIDEO:
3333                 has_video = 1;
3334                 break;
3335             case AVMEDIA_TYPE_SUBTITLE:
3336                 has_subtitle = 1;
3337                 break;
3338             case AVMEDIA_TYPE_DATA:
3339             case AVMEDIA_TYPE_ATTACHMENT:
3340             case AVMEDIA_TYPE_UNKNOWN:
3341                 break;
3342             default:
3343                 abort();
3344             }
3345         }
3346     }
3347     *has_video_ptr = has_video;
3348     *has_audio_ptr = has_audio;
3349     *has_subtitle_ptr = has_subtitle;
3350 }
3351
3352 static void new_video_stream(AVFormatContext *oc)
3353 {
3354     AVStream *st;
3355     AVCodecContext *video_enc;
3356     enum CodecID codec_id;
3357
3358     st = av_new_stream(oc, oc->nb_streams);
3359     if (!st) {
3360         fprintf(stderr, "Could not alloc stream\n");
3361         av_exit(1);
3362     }
3363     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3364     bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3365     video_bitstream_filters= NULL;
3366
3367     avcodec_thread_init(st->codec, thread_count);
3368
3369     video_enc = st->codec;
3370
3371     if(video_codec_tag)
3372         video_enc->codec_tag= video_codec_tag;
3373
3374     if(   (video_global_header&1)
3375        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3376         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3377         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3378     }
3379     if(video_global_header&2){
3380         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3381         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3382     }
3383
3384     if (video_stream_copy) {
3385         st->stream_copy = 1;
3386         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3387         video_enc->sample_aspect_ratio =
3388         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3389     } else {
3390         const char *p;
3391         int i;
3392         AVCodec *codec;
3393         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3394
3395         if (video_codec_name) {
3396             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3397                                          video_enc->strict_std_compliance);
3398             codec = avcodec_find_encoder_by_name(video_codec_name);
3399             output_codecs[nb_ocodecs] = codec;
3400         } else {
3401             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3402             codec = avcodec_find_encoder(codec_id);
3403         }
3404
3405         video_enc->codec_id = codec_id;
3406
3407         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3408
3409         if (codec && codec->supported_framerates && !force_fps)
3410             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3411         video_enc->time_base.den = fps.num;
3412         video_enc->time_base.num = fps.den;
3413
3414         video_enc->width = frame_width;
3415         video_enc->height = frame_height;
3416         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3417         video_enc->pix_fmt = frame_pix_fmt;
3418         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3419
3420         choose_pixel_fmt(st, codec);
3421
3422         if (intra_only)
3423             video_enc->gop_size = 0;
3424         if (video_qscale || same_quality) {
3425             video_enc->flags |= CODEC_FLAG_QSCALE;
3426             video_enc->global_quality=
3427                 st->quality = FF_QP2LAMBDA * video_qscale;
3428         }
3429
3430         if(intra_matrix)
3431             video_enc->intra_matrix = intra_matrix;
3432         if(inter_matrix)
3433             video_enc->inter_matrix = inter_matrix;
3434
3435         p= video_rc_override_string;
3436         for(i=0; p; i++){
3437             int start, end, q;
3438             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3439             if(e!=3){
3440                 fprintf(stderr, "error parsing rc_override\n");
3441                 av_exit(1);
3442             }
3443             video_enc->rc_override=
3444                 av_realloc(video_enc->rc_override,
3445                            sizeof(RcOverride)*(i+1));
3446             video_enc->rc_override[i].start_frame= start;
3447             video_enc->rc_override[i].end_frame  = end;
3448             if(q>0){
3449                 video_enc->rc_override[i].qscale= q;
3450                 video_enc->rc_override[i].quality_factor= 1.0;
3451             }
3452             else{
3453                 video_enc->rc_override[i].qscale= 0;
3454                 video_enc->rc_override[i].quality_factor= -q/100.0;
3455             }
3456             p= strchr(p, '/');
3457             if(p) p++;
3458         }
3459         video_enc->rc_override_count=i;
3460         if (!video_enc->rc_initial_buffer_occupancy)
3461             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3462         video_enc->me_threshold= me_threshold;
3463         video_enc->intra_dc_precision= intra_dc_precision - 8;
3464
3465         if (do_psnr)
3466             video_enc->flags|= CODEC_FLAG_PSNR;
3467
3468         /* two pass mode */
3469         if (do_pass) {
3470             if (do_pass == 1) {
3471                 video_enc->flags |= CODEC_FLAG_PASS1;
3472             } else {
3473                 video_enc->flags |= CODEC_FLAG_PASS2;
3474             }
3475         }
3476     }
3477     nb_ocodecs++;
3478     if (video_language) {
3479         av_metadata_set2(&st->metadata, "language", video_language, 0);
3480         av_freep(&video_language);
3481     }
3482
3483     /* reset some key parameters */
3484     video_disable = 0;
3485     av_freep(&video_codec_name);
3486     video_stream_copy = 0;
3487     frame_pix_fmt = PIX_FMT_NONE;
3488 }
3489
3490 static void new_audio_stream(AVFormatContext *oc)
3491 {
3492     AVStream *st;
3493     AVCodecContext *audio_enc;
3494     enum CodecID codec_id;
3495
3496     st = av_new_stream(oc, oc->nb_streams);
3497     if (!st) {
3498         fprintf(stderr, "Could not alloc stream\n");
3499         av_exit(1);
3500     }
3501     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3502
3503     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3504     audio_bitstream_filters= NULL;
3505
3506     avcodec_thread_init(st->codec, thread_count);
3507
3508     audio_enc = st->codec;
3509     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3510
3511     if(audio_codec_tag)
3512         audio_enc->codec_tag= audio_codec_tag;
3513
3514     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3515         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3516         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3517     }
3518     if (audio_stream_copy) {
3519         st->stream_copy = 1;
3520         audio_enc->channels = audio_channels;
3521         audio_enc->sample_rate = audio_sample_rate;
3522     } else {
3523         AVCodec *codec;
3524
3525         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3526
3527         if (audio_codec_name) {
3528             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3529                                          audio_enc->strict_std_compliance);
3530             codec = avcodec_find_encoder_by_name(audio_codec_name);
3531             output_codecs[nb_ocodecs] = codec;
3532         } else {
3533             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3534             codec = avcodec_find_encoder(codec_id);
3535         }
3536         audio_enc->codec_id = codec_id;
3537
3538         if (audio_qscale > QSCALE_NONE) {
3539             audio_enc->flags |= CODEC_FLAG_QSCALE;
3540             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3541         }
3542         audio_enc->channels = audio_channels;
3543         audio_enc->sample_fmt = audio_sample_fmt;
3544         audio_enc->sample_rate = audio_sample_rate;
3545         audio_enc->channel_layout = channel_layout;
3546         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3547             audio_enc->channel_layout = 0;
3548         choose_sample_fmt(st, codec);
3549         choose_sample_rate(st, codec);
3550     }
3551     nb_ocodecs++;
3552     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3553     if (audio_language) {
3554         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3555         av_freep(&audio_language);
3556     }
3557
3558     /* reset some key parameters */
3559     audio_disable = 0;
3560     av_freep(&audio_codec_name);
3561     audio_stream_copy = 0;
3562 }
3563
3564 static void new_subtitle_stream(AVFormatContext *oc)
3565 {
3566     AVStream *st;
3567     AVCodecContext *subtitle_enc;
3568
3569     st = av_new_stream(oc, oc->nb_streams);
3570     if (!st) {
3571         fprintf(stderr, "Could not alloc stream\n");
3572         av_exit(1);
3573     }
3574     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3575
3576     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3577     subtitle_bitstream_filters= NULL;
3578
3579     subtitle_enc = st->codec;
3580     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3581
3582     if(subtitle_codec_tag)
3583         subtitle_enc->codec_tag= subtitle_codec_tag;
3584
3585     if (subtitle_stream_copy) {
3586         st->stream_copy = 1;
3587     } else {
3588         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3589         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3590                                                    subtitle_enc->strict_std_compliance);
3591         output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3592     }
3593     nb_ocodecs++;
3594
3595     if (subtitle_language) {
3596         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3597         av_freep(&subtitle_language);
3598     }
3599
3600     subtitle_disable = 0;
3601     av_freep(&subtitle_codec_name);
3602     subtitle_stream_copy = 0;
3603 }
3604
3605 static void opt_new_audio_stream(void)
3606 {
3607     AVFormatContext *oc;
3608     if (nb_output_files <= 0) {
3609         fprintf(stderr, "At least one output file must be specified\n");
3610         av_exit(1);
3611     }
3612     oc = output_files[nb_output_files - 1];
3613     new_audio_stream(oc);
3614 }
3615
3616 static void opt_new_video_stream(void)
3617 {
3618     AVFormatContext *oc;
3619     if (nb_output_files <= 0) {
3620         fprintf(stderr, "At least one output file must be specified\n");
3621         av_exit(1);
3622     }
3623     oc = output_files[nb_output_files - 1];
3624     new_video_stream(oc);
3625 }
3626
3627 static void opt_new_subtitle_stream(void)
3628 {
3629     AVFormatContext *oc;
3630     if (nb_output_files <= 0) {
3631         fprintf(stderr, "At least one output file must be specified\n");
3632         av_exit(1);
3633     }
3634     oc = output_files[nb_output_files - 1];
3635     new_subtitle_stream(oc);
3636 }
3637
3638 static void opt_output_file(const char *filename)
3639 {
3640     AVFormatContext *oc;
3641     int err, use_video, use_audio, use_subtitle;
3642     int input_has_video, input_has_audio, input_has_subtitle;
3643     AVFormatParameters params, *ap = &params;
3644     AVOutputFormat *file_oformat;
3645
3646     if (!strcmp(filename, "-"))
3647         filename = "pipe:";
3648
3649     oc = avformat_alloc_context();
3650     if (!oc) {
3651         print_error(filename, AVERROR(ENOMEM));
3652         av_exit(1);
3653     }
3654
3655     if (last_asked_format) {
3656         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3657         if (!file_oformat) {
3658             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3659             av_exit(1);
3660         }
3661         last_asked_format = NULL;
3662     } else {
3663         file_oformat = av_guess_format(NULL, filename, NULL);
3664         if (!file_oformat) {
3665             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3666                     filename);
3667             av_exit(1);
3668         }
3669     }
3670
3671     oc->oformat = file_oformat;
3672     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3673
3674     if (!strcmp(file_oformat->name, "ffm") &&
3675         av_strstart(filename, "http:", NULL)) {
3676         /* special case for files sent to ffserver: we get the stream
3677            parameters from ffserver */
3678         int err = read_ffserver_streams(oc, filename);
3679         if (err < 0) {
3680             print_error(filename, err);
3681             av_exit(1);
3682         }
3683     } else {
3684         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3685         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3686         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3687
3688         /* disable if no corresponding type found and at least one
3689            input file */
3690         if (nb_input_files > 0) {
3691             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3692                                          &input_has_subtitle);
3693             if (!input_has_video)