96f17803955e1f8e8dcd2b5a6c23e76abb99ad81
[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
545 /* read a key without blocking */
546 static int read_key(void)
547 {
548 #if HAVE_TERMIOS_H
549     int n = 1;
550     unsigned char ch;
551     struct timeval tv;
552     fd_set rfds;
553
554     FD_ZERO(&rfds);
555     FD_SET(0, &rfds);
556     tv.tv_sec = 0;
557     tv.tv_usec = 0;
558     n = select(1, &rfds, NULL, NULL, &tv);
559     if (n > 0) {
560         n = read(0, &ch, 1);
561         if (n == 1)
562             return ch;
563
564         return n;
565     }
566 #elif HAVE_CONIO_H
567     if(kbhit())
568         return(getch());
569 #endif
570     return -1;
571 }
572
573 static int decode_interrupt_cb(void)
574 {
575     return q_pressed || (q_pressed = read_key() == 'q');
576 }
577
578 static int av_exit(int ret)
579 {
580     int i;
581
582     /* close files */
583     for(i=0;i<nb_output_files;i++) {
584         /* maybe av_close_output_file ??? */
585         AVFormatContext *s = output_files[i];
586         int j;
587         if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
588             url_fclose(s->pb);
589         for(j=0;j<s->nb_streams;j++) {
590             av_metadata_free(&s->streams[j]->metadata);
591             av_free(s->streams[j]->codec);
592             av_free(s->streams[j]);
593         }
594         for(j=0;j<s->nb_programs;j++) {
595             av_metadata_free(&s->programs[j]->metadata);
596         }
597         for(j=0;j<s->nb_chapters;j++) {
598             av_metadata_free(&s->chapters[j]->metadata);
599         }
600         av_metadata_free(&s->metadata);
601         av_free(s);
602     }
603     for(i=0;i<nb_input_files;i++)
604         av_close_input_file(input_files[i]);
605
606     av_free(intra_matrix);
607     av_free(inter_matrix);
608
609     if (vstats_file)
610         fclose(vstats_file);
611     av_free(vstats_filename);
612
613     av_free(opt_names);
614
615     av_free(video_codec_name);
616     av_free(audio_codec_name);
617     av_free(subtitle_codec_name);
618
619     av_free(video_standard);
620
621 #if CONFIG_POWERPC_PERF
622     void powerpc_display_perf_report(void);
623     powerpc_display_perf_report();
624 #endif /* CONFIG_POWERPC_PERF */
625
626     for (i=0;i<AVMEDIA_TYPE_NB;i++)
627         av_free(avcodec_opts[i]);
628     av_free(avformat_opts);
629     av_free(sws_opts);
630     av_free(audio_buf);
631     av_free(audio_out);
632     allocated_audio_buf_size= allocated_audio_out_size= 0;
633     av_free(samples);
634
635 #if CONFIG_AVFILTER
636     avfilter_uninit();
637 #endif
638
639     if (received_sigterm) {
640         fprintf(stderr,
641             "Received signal %d: terminating.\n",
642             (int) received_sigterm);
643         exit (255);
644     }
645
646     exit(ret); /* not all OS-es handle main() return value */
647     return ret;
648 }
649
650 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
651 {
652     if(codec && codec->sample_fmts){
653         const enum SampleFormat *p= codec->sample_fmts;
654         for(; *p!=-1; p++){
655             if(*p == st->codec->sample_fmt)
656                 break;
657         }
658         if(*p == -1)
659             st->codec->sample_fmt = codec->sample_fmts[0];
660     }
661 }
662
663 static void choose_sample_rate(AVStream *st, AVCodec *codec)
664 {
665     if(codec && codec->supported_samplerates){
666         const int *p= codec->supported_samplerates;
667         int best;
668         int best_dist=INT_MAX;
669         for(; *p; p++){
670             int dist= abs(st->codec->sample_rate - *p);
671             if(dist < best_dist){
672                 best_dist= dist;
673                 best= *p;
674             }
675         }
676         if(best_dist){
677             av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
678         }
679         st->codec->sample_rate= best;
680     }
681 }
682
683 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
684 {
685     if(codec && codec->pix_fmts){
686         const enum PixelFormat *p= codec->pix_fmts;
687         for(; *p!=-1; p++){
688             if(*p == st->codec->pix_fmt)
689                 break;
690         }
691         if(*p == -1
692            && !(   st->codec->codec_id==CODEC_ID_MJPEG
693                 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
694                 && (   st->codec->pix_fmt == PIX_FMT_YUV420P
695                     || st->codec->pix_fmt == PIX_FMT_YUV422P)))
696             st->codec->pix_fmt = codec->pix_fmts[0];
697     }
698 }
699
700 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
701 {
702     int i, err;
703     AVFormatContext *ic;
704     int nopts = 0;
705
706     err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
707     if (err < 0)
708         return err;
709     /* copy stream format */
710     s->nb_streams = ic->nb_streams;
711     for(i=0;i<ic->nb_streams;i++) {
712         AVStream *st;
713         AVCodec *codec;
714
715         // FIXME: a more elegant solution is needed
716         st = av_mallocz(sizeof(AVStream));
717         memcpy(st, ic->streams[i], sizeof(AVStream));
718         st->codec = avcodec_alloc_context();
719         if (!st->codec) {
720             print_error(filename, AVERROR(ENOMEM));
721             av_exit(1);
722         }
723         avcodec_copy_context(st->codec, ic->streams[i]->codec);
724         s->streams[i] = st;
725
726         codec = avcodec_find_encoder(st->codec->codec_id);
727         if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
728             if (audio_stream_copy) {
729                 st->stream_copy = 1;
730             } else
731                 choose_sample_fmt(st, codec);
732         } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
733             if (video_stream_copy) {
734                 st->stream_copy = 1;
735             } else
736                 choose_pixel_fmt(st, codec);
737         }
738
739         if(!st->codec->thread_count)
740             st->codec->thread_count = 1;
741         if(st->codec->thread_count>1)
742             avcodec_thread_init(st->codec, st->codec->thread_count);
743
744         if(st->codec->flags & CODEC_FLAG_BITEXACT)
745             nopts = 1;
746     }
747
748     if (!nopts)
749         s->timestamp = av_gettime();
750
751     av_close_input_file(ic);
752     return 0;
753 }
754
755 static double
756 get_sync_ipts(const AVOutputStream *ost)
757 {
758     const AVInputStream *ist = ost->sync_ist;
759     return (double)(ist->pts - start_time)/AV_TIME_BASE;
760 }
761
762 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
763     int ret;
764
765     while(bsfc){
766         AVPacket new_pkt= *pkt;
767         int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
768                                           &new_pkt.data, &new_pkt.size,
769                                           pkt->data, pkt->size,
770                                           pkt->flags & AV_PKT_FLAG_KEY);
771         if(a>0){
772             av_free_packet(pkt);
773             new_pkt.destruct= av_destruct_packet;
774         } else if(a<0){
775             fprintf(stderr, "%s failed for stream %d, codec %s",
776                     bsfc->filter->name, pkt->stream_index,
777                     avctx->codec ? avctx->codec->name : "copy");
778             print_error("", a);
779             if (exit_on_error)
780                 av_exit(1);
781         }
782         *pkt= new_pkt;
783
784         bsfc= bsfc->next;
785     }
786
787     ret= av_interleaved_write_frame(s, pkt);
788     if(ret < 0){
789         print_error("av_interleaved_write_frame()", ret);
790         av_exit(1);
791     }
792 }
793
794 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
795
796 static void do_audio_out(AVFormatContext *s,
797                          AVOutputStream *ost,
798                          AVInputStream *ist,
799                          unsigned char *buf, int size)
800 {
801     uint8_t *buftmp;
802     int64_t audio_out_size, audio_buf_size;
803     int64_t allocated_for_size= size;
804
805     int size_out, frame_bytes, ret;
806     AVCodecContext *enc= ost->st->codec;
807     AVCodecContext *dec= ist->st->codec;
808     int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
809     int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
810     const int coded_bps = av_get_bits_per_sample(enc->codec->id);
811
812 need_realloc:
813     audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
814     audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
815     audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
816     audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
817     audio_buf_size*= osize*enc->channels;
818
819     audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
820     if(coded_bps > 8*osize)
821         audio_out_size= audio_out_size * coded_bps / (8*osize);
822     audio_out_size += FF_MIN_BUFFER_SIZE;
823
824     if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
825         fprintf(stderr, "Buffer sizes too large\n");
826         av_exit(1);
827     }
828
829     av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
830     av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
831     if (!audio_buf || !audio_out){
832         fprintf(stderr, "Out of memory in do_audio_out\n");
833         av_exit(1);
834     }
835
836     if (enc->channels != dec->channels)
837         ost->audio_resample = 1;
838
839     if (ost->audio_resample && !ost->resample) {
840         if (dec->sample_fmt != SAMPLE_FMT_S16)
841             fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
842         ost->resample = av_audio_resample_init(enc->channels,    dec->channels,
843                                                enc->sample_rate, dec->sample_rate,
844                                                enc->sample_fmt,  dec->sample_fmt,
845                                                16, 10, 0, 0.8);
846         if (!ost->resample) {
847             fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
848                     dec->channels, dec->sample_rate,
849                     enc->channels, enc->sample_rate);
850             av_exit(1);
851         }
852     }
853
854 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
855     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
856         MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
857         if (ost->reformat_ctx)
858             av_audio_convert_free(ost->reformat_ctx);
859         ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
860                                                    dec->sample_fmt, 1, NULL, 0);
861         if (!ost->reformat_ctx) {
862             fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
863                 avcodec_get_sample_fmt_name(dec->sample_fmt),
864                 avcodec_get_sample_fmt_name(enc->sample_fmt));
865             av_exit(1);
866         }
867         ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
868     }
869
870     if(audio_sync_method){
871         double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
872                 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
873         double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
874         int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
875
876         //FIXME resample delay
877         if(fabs(delta) > 50){
878             if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
879                 if(byte_delta < 0){
880                     byte_delta= FFMAX(byte_delta, -size);
881                     size += byte_delta;
882                     buf  -= byte_delta;
883                     if(verbose > 2)
884                         fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
885                     if(!size)
886                         return;
887                     ist->is_start=0;
888                 }else{
889                     static uint8_t *input_tmp= NULL;
890                     input_tmp= av_realloc(input_tmp, byte_delta + size);
891
892                     if(byte_delta > allocated_for_size - size){
893                         allocated_for_size= byte_delta + (int64_t)size;
894                         goto need_realloc;
895                     }
896                     ist->is_start=0;
897
898                     memset(input_tmp, 0, byte_delta);
899                     memcpy(input_tmp + byte_delta, buf, size);
900                     buf= input_tmp;
901                     size += byte_delta;
902                     if(verbose > 2)
903                         fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
904                 }
905             }else if(audio_sync_method>1){
906                 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
907                 assert(ost->audio_resample);
908                 if(verbose > 2)
909                     fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
910 //                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));
911                 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
912             }
913         }
914     }else
915         ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
916                         - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
917
918     if (ost->audio_resample) {
919         buftmp = audio_buf;
920         size_out = audio_resample(ost->resample,
921                                   (short *)buftmp, (short *)buf,
922                                   size / (ist->st->codec->channels * isize));
923         size_out = size_out * enc->channels * osize;
924     } else {
925         buftmp = buf;
926         size_out = size;
927     }
928
929     if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
930         const void *ibuf[6]= {buftmp};
931         void *obuf[6]= {audio_buf};
932         int istride[6]= {isize};
933         int ostride[6]= {osize};
934         int len= size_out/istride[0];
935         if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
936             printf("av_audio_convert() failed\n");
937             if (exit_on_error)
938                 av_exit(1);
939             return;
940         }
941         buftmp = audio_buf;
942         size_out = len*osize;
943     }
944
945     /* now encode as many frames as possible */
946     if (enc->frame_size > 1) {
947         /* output resampled raw samples */
948         if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
949             fprintf(stderr, "av_fifo_realloc2() failed\n");
950             av_exit(1);
951         }
952         av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
953
954         frame_bytes = enc->frame_size * osize * enc->channels;
955
956         while (av_fifo_size(ost->fifo) >= frame_bytes) {
957             AVPacket pkt;
958             av_init_packet(&pkt);
959
960             av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
961
962             //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
963
964             ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
965                                        (short *)audio_buf);
966             if (ret < 0) {
967                 fprintf(stderr, "Audio encoding failed\n");
968                 av_exit(1);
969             }
970             audio_size += ret;
971             pkt.stream_index= ost->index;
972             pkt.data= audio_out;
973             pkt.size= ret;
974             if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
975                 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
976             pkt.flags |= AV_PKT_FLAG_KEY;
977             write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
978
979             ost->sync_opts += enc->frame_size;
980         }
981     } else {
982         AVPacket pkt;
983         av_init_packet(&pkt);
984
985         ost->sync_opts += size_out / (osize * enc->channels);
986
987         /* output a pcm frame */
988         /* determine the size of the coded buffer */
989         size_out /= osize;
990         if (coded_bps)
991             size_out = size_out*coded_bps/8;
992
993         if(size_out > audio_out_size){
994             fprintf(stderr, "Internal error, buffer size too small\n");
995             av_exit(1);
996         }
997
998         //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
999         ret = avcodec_encode_audio(enc, audio_out, size_out,
1000                                    (short *)buftmp);
1001         if (ret < 0) {
1002             fprintf(stderr, "Audio encoding failed\n");
1003             av_exit(1);
1004         }
1005         audio_size += ret;
1006         pkt.stream_index= ost->index;
1007         pkt.data= audio_out;
1008         pkt.size= ret;
1009         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1010             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1011         pkt.flags |= AV_PKT_FLAG_KEY;
1012         write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1013     }
1014 }
1015
1016 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1017 {
1018     AVCodecContext *dec;
1019     AVPicture *picture2;
1020     AVPicture picture_tmp;
1021     uint8_t *buf = 0;
1022
1023     dec = ist->st->codec;
1024
1025     /* deinterlace : must be done before any resize */
1026     if (do_deinterlace) {
1027         int size;
1028
1029         /* create temporary picture */
1030         size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1031         buf = av_malloc(size);
1032         if (!buf)
1033             return;
1034
1035         picture2 = &picture_tmp;
1036         avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1037
1038         if(avpicture_deinterlace(picture2, picture,
1039                                  dec->pix_fmt, dec->width, dec->height) < 0) {
1040             /* if error, do not deinterlace */
1041             fprintf(stderr, "Deinterlacing failed\n");
1042             av_free(buf);
1043             buf = NULL;
1044             picture2 = picture;
1045         }
1046     } else {
1047         picture2 = picture;
1048     }
1049
1050     if (picture != picture2)
1051         *picture = *picture2;
1052     *bufp = buf;
1053 }
1054
1055 /* we begin to correct av delay at this threshold */
1056 #define AV_DELAY_MAX 0.100
1057
1058 static void do_subtitle_out(AVFormatContext *s,
1059                             AVOutputStream *ost,
1060                             AVInputStream *ist,
1061                             AVSubtitle *sub,
1062                             int64_t pts)
1063 {
1064     static uint8_t *subtitle_out = NULL;
1065     int subtitle_out_max_size = 1024 * 1024;
1066     int subtitle_out_size, nb, i;
1067     AVCodecContext *enc;
1068     AVPacket pkt;
1069
1070     if (pts == AV_NOPTS_VALUE) {
1071         fprintf(stderr, "Subtitle packets must have a pts\n");
1072         if (exit_on_error)
1073             av_exit(1);
1074         return;
1075     }
1076
1077     enc = ost->st->codec;
1078
1079     if (!subtitle_out) {
1080         subtitle_out = av_malloc(subtitle_out_max_size);
1081     }
1082
1083     /* Note: DVB subtitle need one packet to draw them and one other
1084        packet to clear them */
1085     /* XXX: signal it in the codec context ? */
1086     if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1087         nb = 2;
1088     else
1089         nb = 1;
1090
1091     for(i = 0; i < nb; i++) {
1092         sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1093         // start_display_time is required to be 0
1094         sub->pts              += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1095         sub->end_display_time -= sub->start_display_time;
1096         sub->start_display_time = 0;
1097         subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1098                                                     subtitle_out_max_size, sub);
1099         if (subtitle_out_size < 0) {
1100             fprintf(stderr, "Subtitle encoding failed\n");
1101             av_exit(1);
1102         }
1103
1104         av_init_packet(&pkt);
1105         pkt.stream_index = ost->index;
1106         pkt.data = subtitle_out;
1107         pkt.size = subtitle_out_size;
1108         pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1109         if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1110             /* XXX: the pts correction is handled here. Maybe handling
1111                it in the codec would be better */
1112             if (i == 0)
1113                 pkt.pts += 90 * sub->start_display_time;
1114             else
1115                 pkt.pts += 90 * sub->end_display_time;
1116         }
1117         write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1118     }
1119 }
1120
1121 static int bit_buffer_size= 1024*256;
1122 static uint8_t *bit_buffer= NULL;
1123
1124 static void do_video_out(AVFormatContext *s,
1125                          AVOutputStream *ost,
1126                          AVInputStream *ist,
1127                          AVFrame *in_picture,
1128                          int *frame_size)
1129 {
1130     int nb_frames, i, ret;
1131 #if !CONFIG_AVFILTER
1132     int64_t topBand, bottomBand, leftBand, rightBand;
1133 #endif
1134     AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1135     AVFrame picture_crop_temp, picture_pad_temp;
1136     AVCodecContext *enc, *dec;
1137     double sync_ipts;
1138
1139     avcodec_get_frame_defaults(&picture_crop_temp);
1140     avcodec_get_frame_defaults(&picture_pad_temp);
1141
1142     enc = ost->st->codec;
1143     dec = ist->st->codec;
1144
1145     sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1146
1147     /* by default, we output a single frame */
1148     nb_frames = 1;
1149
1150     *frame_size = 0;
1151
1152     if(video_sync_method){
1153         double vdelta = sync_ipts - ost->sync_opts;
1154         //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155         if (vdelta < -1.1)
1156             nb_frames = 0;
1157         else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1158             if(vdelta<=-0.6){
1159                 nb_frames=0;
1160             }else if(vdelta>0.6)
1161             ost->sync_opts= lrintf(sync_ipts);
1162         }else if (vdelta > 1.1)
1163             nb_frames = lrintf(vdelta);
1164 //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);
1165         if (nb_frames == 0){
1166             ++nb_frames_drop;
1167             if (verbose>2)
1168                 fprintf(stderr, "*** drop!\n");
1169         }else if (nb_frames > 1) {
1170             nb_frames_dup += nb_frames - 1;
1171             if (verbose>2)
1172                 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173         }
1174     }else
1175         ost->sync_opts= lrintf(sync_ipts);
1176
1177     nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1178     if (nb_frames <= 0)
1179         return;
1180
1181 #if CONFIG_AVFILTER
1182     formatted_picture = in_picture;
1183 #else
1184     if (ost->video_crop) {
1185         if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1186             fprintf(stderr, "error cropping picture\n");
1187             if (exit_on_error)
1188                 av_exit(1);
1189             return;
1190         }
1191         formatted_picture = &picture_crop_temp;
1192     } else {
1193         formatted_picture = in_picture;
1194     }
1195 #endif
1196
1197     final_picture = formatted_picture;
1198     padding_src = formatted_picture;
1199     resampling_dst = &ost->pict_tmp;
1200
1201     if(    (ost->resample_height != (ist->st->codec->height - (ost->topBand  + ost->bottomBand)))
1202         || (ost->resample_width  != (ist->st->codec->width  - (ost->leftBand + ost->rightBand)))
1203         || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1204
1205         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));
1206         if(!ost->video_resample)
1207             av_exit(1);
1208     }
1209
1210 #if !CONFIG_AVFILTER
1211     if (ost->video_resample) {
1212         padding_src = NULL;
1213         final_picture = &ost->pict_tmp;
1214         if(  (ost->resample_height != (ist->st->codec->height - (ost->topBand  + ost->bottomBand)))
1215           || (ost->resample_width  != (ist->st->codec->width  - (ost->leftBand + ost->rightBand)))
1216           || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1217
1218             /* keep bands proportional to the frame size */
1219             topBand    = ((int64_t)ist->st->codec->height * ost->original_topBand    / ost->original_height) & ~1;
1220             bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1221             leftBand   = ((int64_t)ist->st->codec->width  * ost->original_leftBand   / ost->original_width)  & ~1;
1222             rightBand  = ((int64_t)ist->st->codec->width  * ost->original_rightBand  / ost->original_width)  & ~1;
1223
1224             /* sanity check to ensure no bad band sizes sneak in */
1225             assert(topBand    <= INT_MAX && topBand    >= 0);
1226             assert(bottomBand <= INT_MAX && bottomBand >= 0);
1227             assert(leftBand   <= INT_MAX && leftBand   >= 0);
1228             assert(rightBand  <= INT_MAX && rightBand  >= 0);
1229
1230             ost->topBand    = topBand;
1231             ost->bottomBand = bottomBand;
1232             ost->leftBand   = leftBand;
1233             ost->rightBand  = rightBand;
1234
1235             ost->resample_height = ist->st->codec->height - (ost->topBand  + ost->bottomBand);
1236             ost->resample_width  = ist->st->codec->width  - (ost->leftBand + ost->rightBand);
1237             ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1238
1239             /* initialize a new scaler context */
1240             sws_freeContext(ost->img_resample_ctx);
1241             sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1242             ost->img_resample_ctx = sws_getContext(
1243                 ist->st->codec->width  - (ost->leftBand + ost->rightBand),
1244                 ist->st->codec->height - (ost->topBand  + ost->bottomBand),
1245                 ist->st->codec->pix_fmt,
1246                 ost->st->codec->width,
1247                 ost->st->codec->height,
1248                 ost->st->codec->pix_fmt,
1249                 sws_flags, NULL, NULL, NULL);
1250             if (ost->img_resample_ctx == NULL) {
1251                 fprintf(stderr, "Cannot get resampling context\n");
1252                 av_exit(1);
1253             }
1254         }
1255         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1256               0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1257     }
1258 #endif
1259
1260     /* duplicates frame if needed */
1261     for(i=0;i<nb_frames;i++) {
1262         AVPacket pkt;
1263         av_init_packet(&pkt);
1264         pkt.stream_index= ost->index;
1265
1266         if (s->oformat->flags & AVFMT_RAWPICTURE) {
1267             /* raw pictures are written as AVPicture structure to
1268                avoid any copies. We support temorarily the older
1269                method. */
1270             AVFrame* old_frame = enc->coded_frame;
1271             enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1272             pkt.data= (uint8_t *)final_picture;
1273             pkt.size=  sizeof(AVPicture);
1274             pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1275             pkt.flags |= AV_PKT_FLAG_KEY;
1276
1277             write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1278             enc->coded_frame = old_frame;
1279         } else {
1280             AVFrame big_picture;
1281
1282             big_picture= *final_picture;
1283             /* better than nothing: use input picture interlaced
1284                settings */
1285             big_picture.interlaced_frame = in_picture->interlaced_frame;
1286             if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1287                 if(top_field_first == -1)
1288                     big_picture.top_field_first = in_picture->top_field_first;
1289                 else
1290                     big_picture.top_field_first = top_field_first;
1291             }
1292
1293             /* handles sameq here. This is not correct because it may
1294                not be a global option */
1295             if (same_quality) {
1296                 big_picture.quality = ist->st->quality;
1297             }else
1298                 big_picture.quality = ost->st->quality;
1299             if(!me_threshold)
1300                 big_picture.pict_type = 0;
1301 //            big_picture.pts = AV_NOPTS_VALUE;
1302             big_picture.pts= ost->sync_opts;
1303 //            big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1304 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1305             ret = avcodec_encode_video(enc,
1306                                        bit_buffer, bit_buffer_size,
1307                                        &big_picture);
1308             if (ret < 0) {
1309                 fprintf(stderr, "Video encoding failed\n");
1310                 av_exit(1);
1311             }
1312
1313             if(ret>0){
1314                 pkt.data= bit_buffer;
1315                 pkt.size= ret;
1316                 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1317                     pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1318 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1319    pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1320    pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1321
1322                 if(enc->coded_frame->key_frame)
1323                     pkt.flags |= AV_PKT_FLAG_KEY;
1324                 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1325                 *frame_size = ret;
1326                 video_size += ret;
1327                 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1328                 //        enc->frame_number-1, ret, enc->pict_type);
1329                 /* if two pass, output log */
1330                 if (ost->logfile && enc->stats_out) {
1331                     fprintf(ost->logfile, "%s", enc->stats_out);
1332                 }
1333             }
1334         }
1335         ost->sync_opts++;
1336         ost->frame_number++;
1337     }
1338 }
1339
1340 static double psnr(double d){
1341     return -10.0*log(d)/log(10.0);
1342 }
1343
1344 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1345                            int frame_size)
1346 {
1347     AVCodecContext *enc;
1348     int frame_number;
1349     double ti1, bitrate, avg_bitrate;
1350
1351     /* this is executed just the first time do_video_stats is called */
1352     if (!vstats_file) {
1353         vstats_file = fopen(vstats_filename, "w");
1354         if (!vstats_file) {
1355             perror("fopen");
1356             av_exit(1);
1357         }
1358     }
1359
1360     enc = ost->st->codec;
1361     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1362         frame_number = ost->frame_number;
1363         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1364         if (enc->flags&CODEC_FLAG_PSNR)
1365             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1366
1367         fprintf(vstats_file,"f_size= %6d ", frame_size);
1368         /* compute pts value */
1369         ti1 = ost->sync_opts * av_q2d(enc->time_base);
1370         if (ti1 < 0.01)
1371             ti1 = 0.01;
1372
1373         bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1374         avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1375         fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1376             (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1377         fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1378     }
1379 }
1380
1381 static void print_report(AVFormatContext **output_files,
1382                          AVOutputStream **ost_table, int nb_ostreams,
1383                          int is_last_report)
1384 {
1385     char buf[1024];
1386     AVOutputStream *ost;
1387     AVFormatContext *oc;
1388     int64_t total_size;
1389     AVCodecContext *enc;
1390     int frame_number, vid, i;
1391     double bitrate, ti1, pts;
1392     static int64_t last_time = -1;
1393     static int qp_histogram[52];
1394
1395     if (!is_last_report) {
1396         int64_t cur_time;
1397         /* display the report every 0.5 seconds */
1398         cur_time = av_gettime();
1399         if (last_time == -1) {
1400             last_time = cur_time;
1401             return;
1402         }
1403         if ((cur_time - last_time) < 500000)
1404             return;
1405         last_time = cur_time;
1406     }
1407
1408
1409     oc = output_files[0];
1410
1411     total_size = url_fsize(oc->pb);
1412     if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1413         total_size= url_ftell(oc->pb);
1414
1415     buf[0] = '\0';
1416     ti1 = 1e10;
1417     vid = 0;
1418     for(i=0;i<nb_ostreams;i++) {
1419         ost = ost_table[i];
1420         enc = ost->st->codec;
1421         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1422             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1423                      !ost->st->stream_copy ?
1424                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1425         }
1426         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1427             float t = (av_gettime()-timer_start) / 1000000.0;
1428
1429             frame_number = ost->frame_number;
1430             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1431                      frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1432                      !ost->st->stream_copy ?
1433                      enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1434             if(is_last_report)
1435                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1436             if(qp_hist){
1437                 int j;
1438                 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1439                 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1440                     qp_histogram[qp]++;
1441                 for(j=0; j<32; j++)
1442                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1443             }
1444             if (enc->flags&CODEC_FLAG_PSNR){
1445                 int j;
1446                 double error, error_sum=0;
1447                 double scale, scale_sum=0;
1448                 char type[3]= {'Y','U','V'};
1449                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1450                 for(j=0; j<3; j++){
1451                     if(is_last_report){
1452                         error= enc->error[j];
1453                         scale= enc->width*enc->height*255.0*255.0*frame_number;
1454                     }else{
1455                         error= enc->coded_frame->error[j];
1456                         scale= enc->width*enc->height*255.0*255.0;
1457                     }
1458                     if(j) scale/=4;
1459                     error_sum += error;
1460                     scale_sum += scale;
1461                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1462                 }
1463                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1464             }
1465             vid = 1;
1466         }
1467         /* compute min output value */
1468         pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1469         if ((pts < ti1) && (pts > 0))
1470             ti1 = pts;
1471     }
1472     if (ti1 < 0.01)
1473         ti1 = 0.01;
1474
1475     if (verbose || is_last_report) {
1476         bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1477
1478         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1479             "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1480             (double)total_size / 1024, ti1, bitrate);
1481
1482         if (nb_frames_dup || nb_frames_drop)
1483           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1484                   nb_frames_dup, nb_frames_drop);
1485
1486         if (verbose >= 0)
1487             fprintf(stderr, "%s    \r", buf);
1488
1489         fflush(stderr);
1490     }
1491
1492     if (is_last_report && verbose >= 0){
1493         int64_t raw= audio_size + video_size + extra_size;
1494         fprintf(stderr, "\n");
1495         fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1496                 video_size/1024.0,
1497                 audio_size/1024.0,
1498                 extra_size/1024.0,
1499                 100.0*(total_size - raw)/raw
1500         );
1501     }
1502 }
1503
1504 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1505 static int output_packet(AVInputStream *ist, int ist_index,
1506                          AVOutputStream **ost_table, int nb_ostreams,
1507                          const AVPacket *pkt)
1508 {
1509     AVFormatContext *os;
1510     AVOutputStream *ost;
1511     int ret, i;
1512     int got_picture;
1513     AVFrame picture;
1514     void *buffer_to_free;
1515     static unsigned int samples_size= 0;
1516     AVSubtitle subtitle, *subtitle_to_free;
1517     int got_subtitle;
1518 #if CONFIG_AVFILTER
1519     int frame_available;
1520 #endif
1521
1522     AVPacket avpkt;
1523     int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1524
1525     if(ist->next_pts == AV_NOPTS_VALUE)
1526         ist->next_pts= ist->pts;
1527
1528     if (pkt == NULL) {
1529         /* EOF handling */
1530         av_init_packet(&avpkt);
1531         avpkt.data = NULL;
1532         avpkt.size = 0;
1533         goto handle_eof;
1534     } else {
1535         avpkt = *pkt;
1536     }
1537
1538     if(pkt->dts != AV_NOPTS_VALUE)
1539         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1540
1541     //while we have more to decode or while the decoder did output something on EOF
1542     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1543         uint8_t *data_buf, *decoded_data_buf;
1544         int data_size, decoded_data_size;
1545     handle_eof:
1546         ist->pts= ist->next_pts;
1547
1548         if(avpkt.size && avpkt.size != pkt->size &&
1549            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1550             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1551             ist->showed_multi_packet_warning=1;
1552         }
1553
1554         /* decode the packet if needed */
1555         decoded_data_buf = NULL; /* fail safe */
1556         decoded_data_size= 0;
1557         data_buf  = avpkt.data;
1558         data_size = avpkt.size;
1559         subtitle_to_free = NULL;
1560         if (ist->decoding_needed) {
1561             switch(ist->st->codec->codec_type) {
1562             case AVMEDIA_TYPE_AUDIO:{
1563                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1564                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1565                     av_free(samples);
1566                     samples= av_malloc(samples_size);
1567                 }
1568                 decoded_data_size= samples_size;
1569                     /* XXX: could avoid copy if PCM 16 bits with same
1570                        endianness as CPU */
1571                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1572                                             &avpkt);
1573                 if (ret < 0)
1574                     goto fail_decode;
1575                 avpkt.data += ret;
1576                 avpkt.size -= ret;
1577                 data_size   = ret;
1578                 /* Some bug in mpeg audio decoder gives */
1579                 /* decoded_data_size < 0, it seems they are overflows */
1580                 if (decoded_data_size <= 0) {
1581                     /* no audio frame */
1582                     continue;
1583                 }
1584                 decoded_data_buf = (uint8_t *)samples;
1585                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1586                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1587                 break;}
1588             case AVMEDIA_TYPE_VIDEO:
1589                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1590                     /* XXX: allocate picture correctly */
1591                     avcodec_get_frame_defaults(&picture);
1592
1593                     ret = avcodec_decode_video2(ist->st->codec,
1594                                                 &picture, &got_picture, &avpkt);
1595                     ist->st->quality= picture.quality;
1596                     if (ret < 0)
1597                         goto fail_decode;
1598                     if (!got_picture) {
1599                         /* no picture yet */
1600                         goto discard_packet;
1601                     }
1602                     if (ist->st->codec->time_base.num != 0) {
1603                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1604                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1605                                           ist->st->codec->time_base.num * ticks) /
1606                             ist->st->codec->time_base.den;
1607                     }
1608                     avpkt.size = 0;
1609                     break;
1610             case AVMEDIA_TYPE_SUBTITLE:
1611                 ret = avcodec_decode_subtitle2(ist->st->codec,
1612                                                &subtitle, &got_subtitle, &avpkt);
1613                 if (ret < 0)
1614                     goto fail_decode;
1615                 if (!got_subtitle) {
1616                     goto discard_packet;
1617                 }
1618                 subtitle_to_free = &subtitle;
1619                 avpkt.size = 0;
1620                 break;
1621             default:
1622                 goto fail_decode;
1623             }
1624         } else {
1625             switch(ist->st->codec->codec_type) {
1626             case AVMEDIA_TYPE_AUDIO:
1627                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1628                     ist->st->codec->sample_rate;
1629                 break;
1630             case AVMEDIA_TYPE_VIDEO:
1631                 if (ist->st->codec->time_base.num != 0) {
1632                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1633                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1634                                       ist->st->codec->time_base.num * ticks) /
1635                         ist->st->codec->time_base.den;
1636                 }
1637                 break;
1638             }
1639             ret = avpkt.size;
1640             avpkt.size = 0;
1641         }
1642
1643         buffer_to_free = NULL;
1644         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1645             pre_process_video_frame(ist, (AVPicture *)&picture,
1646                                     &buffer_to_free);
1647         }
1648
1649 #if CONFIG_AVFILTER
1650         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1651             // add it to be filtered
1652             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1653                                      ist->pts,
1654                                      ist->st->codec->sample_aspect_ratio);
1655         }
1656 #endif
1657
1658         // preprocess audio (volume)
1659         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1660             if (audio_volume != 256) {
1661                 short *volp;
1662                 volp = samples;
1663                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1664                     int v = ((*volp) * audio_volume + 128) >> 8;
1665                     if (v < -32768) v = -32768;
1666                     if (v >  32767) v = 32767;
1667                     *volp++ = v;
1668                 }
1669             }
1670         }
1671
1672         /* frame rate emulation */
1673         if (rate_emu) {
1674             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1675             int64_t now = av_gettime() - ist->start;
1676             if (pts > now)
1677                 usleep(pts - now);
1678         }
1679 #if CONFIG_AVFILTER
1680         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1681             !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1682 #endif
1683         /* if output time reached then transcode raw format,
1684            encode packets and output them */
1685         if (start_time == 0 || ist->pts >= start_time)
1686 #if CONFIG_AVFILTER
1687         while (frame_available) {
1688             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1689                 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1690 #endif
1691             for(i=0;i<nb_ostreams;i++) {
1692                 int frame_size;
1693
1694                 ost = ost_table[i];
1695                 if (ost->source_index == ist_index) {
1696                     os = output_files[ost->file_index];
1697
1698                     /* set the input output pts pairs */
1699                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1700
1701                     if (ost->encoding_needed) {
1702                         assert(ist->decoding_needed);
1703                         switch(ost->st->codec->codec_type) {
1704                         case AVMEDIA_TYPE_AUDIO:
1705                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1706                             break;
1707                         case AVMEDIA_TYPE_VIDEO:
1708 #if CONFIG_AVFILTER
1709                             ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1710 #endif
1711                             do_video_out(os, ost, ist, &picture, &frame_size);
1712                             if (vstats_filename && frame_size)
1713                                 do_video_stats(os, ost, frame_size);
1714                             break;
1715                         case AVMEDIA_TYPE_SUBTITLE:
1716                             do_subtitle_out(os, ost, ist, &subtitle,
1717                                             pkt->pts);
1718                             break;
1719                         default:
1720                             abort();
1721                         }
1722                     } else {
1723                         AVFrame avframe; //FIXME/XXX remove this
1724                         AVPacket opkt;
1725                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1726
1727                         av_init_packet(&opkt);
1728
1729                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1730                             continue;
1731
1732                         /* no reencoding needed : output the packet directly */
1733                         /* force the input stream PTS */
1734
1735                         avcodec_get_frame_defaults(&avframe);
1736                         ost->st->codec->coded_frame= &avframe;
1737                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1738
1739                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1740                             audio_size += data_size;
1741                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1742                             video_size += data_size;
1743                             ost->sync_opts++;
1744                         }
1745
1746                         opkt.stream_index= ost->index;
1747                         if(pkt->pts != AV_NOPTS_VALUE)
1748                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1749                         else
1750                             opkt.pts= AV_NOPTS_VALUE;
1751
1752                         if (pkt->dts == AV_NOPTS_VALUE)
1753                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1754                         else
1755                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1756                         opkt.dts -= ost_tb_start_time;
1757
1758                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1759                         opkt.flags= pkt->flags;
1760
1761                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1762                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1763                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1764                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1765                            ) {
1766                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1767                                 opkt.destruct= av_destruct_packet;
1768                         } else {
1769                             opkt.data = data_buf;
1770                             opkt.size = data_size;
1771                         }
1772
1773                         write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1774                         ost->st->codec->frame_number++;
1775                         ost->frame_number++;
1776                         av_free_packet(&opkt);
1777                     }
1778                 }
1779 #if CONFIG_AVFILTER
1780                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1781                         ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1782 #endif
1783             }
1784
1785 #if CONFIG_AVFILTER
1786             if(ist->picref)
1787                 avfilter_unref_pic(ist->picref);
1788         }
1789 #endif
1790         av_free(buffer_to_free);
1791         /* XXX: allocate the subtitles in the codec ? */
1792         if (subtitle_to_free) {
1793             if (subtitle_to_free->rects != NULL) {
1794                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1795                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1796                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1797                     av_freep(&subtitle_to_free->rects[i]);
1798                 }
1799                 av_freep(&subtitle_to_free->rects);
1800             }
1801             subtitle_to_free->num_rects = 0;
1802             subtitle_to_free = NULL;
1803         }
1804     }
1805  discard_packet:
1806     if (pkt == NULL) {
1807         /* EOF handling */
1808
1809         for(i=0;i<nb_ostreams;i++) {
1810             ost = ost_table[i];
1811             if (ost->source_index == ist_index) {
1812                 AVCodecContext *enc= ost->st->codec;
1813                 os = output_files[ost->file_index];
1814
1815                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1816                     continue;
1817                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1818                     continue;
1819
1820                 if (ost->encoding_needed) {
1821                     for(;;) {
1822                         AVPacket pkt;
1823                         int fifo_bytes;
1824                         av_init_packet(&pkt);
1825                         pkt.stream_index= ost->index;
1826
1827                         switch(ost->st->codec->codec_type) {
1828                         case AVMEDIA_TYPE_AUDIO:
1829                             fifo_bytes = av_fifo_size(ost->fifo);
1830                             ret = 0;
1831                             /* encode any samples remaining in fifo */
1832                             if (fifo_bytes > 0) {
1833                                 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1834                                 int fs_tmp = enc->frame_size;
1835
1836                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1837                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1838                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1839                                 } else { /* pad */
1840                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1841                                     if (allocated_audio_buf_size < frame_bytes)
1842                                         av_exit(1);
1843                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1844                                 }
1845
1846                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1847                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1848                                                           ost->st->time_base.num, enc->sample_rate);
1849                                 enc->frame_size = fs_tmp;
1850                             }
1851                             if(ret <= 0) {
1852                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1853                             }
1854                             if (ret < 0) {
1855                                 fprintf(stderr, "Audio encoding failed\n");
1856                                 av_exit(1);
1857                             }
1858                             audio_size += ret;
1859                             pkt.flags |= AV_PKT_FLAG_KEY;
1860                             break;
1861                         case AVMEDIA_TYPE_VIDEO:
1862                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1863                             if (ret < 0) {
1864                                 fprintf(stderr, "Video encoding failed\n");
1865                                 av_exit(1);
1866                             }
1867                             video_size += ret;
1868                             if(enc->coded_frame && enc->coded_frame->key_frame)
1869                                 pkt.flags |= AV_PKT_FLAG_KEY;
1870                             if (ost->logfile && enc->stats_out) {
1871                                 fprintf(ost->logfile, "%s", enc->stats_out);
1872                             }
1873                             break;
1874                         default:
1875                             ret=-1;
1876                         }
1877
1878                         if(ret<=0)
1879                             break;
1880                         pkt.data= bit_buffer;
1881                         pkt.size= ret;
1882                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1883                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1884                         write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1885                     }
1886                 }
1887             }
1888         }
1889     }
1890
1891     return 0;
1892  fail_decode:
1893     return -1;
1894 }
1895
1896 static void print_sdp(AVFormatContext **avc, int n)
1897 {
1898     char sdp[2048];
1899
1900     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1901     printf("SDP:\n%s\n", sdp);
1902     fflush(stdout);
1903 }
1904
1905 static int copy_chapters(int infile, int outfile)
1906 {
1907     AVFormatContext *is = input_files[infile];
1908     AVFormatContext *os = output_files[outfile];
1909     int i;
1910
1911     for (i = 0; i < is->nb_chapters; i++) {
1912         AVChapter *in_ch = is->chapters[i], *out_ch;
1913         AVMetadataTag *t = NULL;
1914         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1915                                       AV_TIME_BASE_Q, in_ch->time_base);
1916         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1917                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1918
1919
1920         if (in_ch->end < ts_off)
1921             continue;
1922         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1923             break;
1924
1925         out_ch = av_mallocz(sizeof(AVChapter));
1926         if (!out_ch)
1927             return AVERROR(ENOMEM);
1928
1929         out_ch->id        = in_ch->id;
1930         out_ch->time_base = in_ch->time_base;
1931         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1932         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1933
1934         while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1935             av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1936
1937         os->nb_chapters++;
1938         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1939         if (!os->chapters)
1940             return AVERROR(ENOMEM);
1941         os->chapters[os->nb_chapters - 1] = out_ch;
1942     }
1943     return 0;
1944 }
1945
1946 /*
1947  * The following code is the main loop of the file converter
1948  */
1949 static int av_transcode(AVFormatContext **output_files,
1950                         int nb_output_files,
1951                         AVFormatContext **input_files,
1952                         int nb_input_files,
1953                         AVStreamMap *stream_maps, int nb_stream_maps)
1954 {
1955     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1956     AVFormatContext *is, *os;
1957     AVCodecContext *codec, *icodec;
1958     AVOutputStream *ost, **ost_table = NULL;
1959     AVInputStream *ist, **ist_table = NULL;
1960     AVInputFile *file_table;
1961     char error[1024];
1962     int key;
1963     int want_sdp = 1;
1964     uint8_t no_packet[MAX_FILES]={0};
1965     int no_packet_count=0;
1966
1967     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1968     if (!file_table)
1969         goto fail;
1970
1971     /* input stream init */
1972     j = 0;
1973     for(i=0;i<nb_input_files;i++) {
1974         is = input_files[i];
1975         file_table[i].ist_index = j;
1976         file_table[i].nb_streams = is->nb_streams;
1977         j += is->nb_streams;
1978     }
1979     nb_istreams = j;
1980
1981     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1982     if (!ist_table)
1983         goto fail;
1984
1985     for(i=0;i<nb_istreams;i++) {
1986         ist = av_mallocz(sizeof(AVInputStream));
1987         if (!ist)
1988             goto fail;
1989         ist_table[i] = ist;
1990     }
1991     j = 0;
1992     for(i=0;i<nb_input_files;i++) {
1993         is = input_files[i];
1994         for(k=0;k<is->nb_streams;k++) {
1995             ist = ist_table[j++];
1996             ist->st = is->streams[k];
1997             ist->file_index = i;
1998             ist->index = k;
1999             ist->discard = 1; /* the stream is discarded by default
2000                                  (changed later) */
2001
2002             if (rate_emu) {
2003                 ist->start = av_gettime();
2004             }
2005         }
2006     }
2007
2008     /* output stream init */
2009     nb_ostreams = 0;
2010     for(i=0;i<nb_output_files;i++) {
2011         os = output_files[i];
2012         if (!os->nb_streams) {
2013             dump_format(output_files[i], i, output_files[i]->filename, 1);
2014             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2015             av_exit(1);
2016         }
2017         nb_ostreams += os->nb_streams;
2018     }
2019     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2020         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2021         av_exit(1);
2022     }
2023
2024     /* Sanity check the mapping args -- do the input files & streams exist? */
2025     for(i=0;i<nb_stream_maps;i++) {
2026         int fi = stream_maps[i].file_index;
2027         int si = stream_maps[i].stream_index;
2028
2029         if (fi < 0 || fi > nb_input_files - 1 ||
2030             si < 0 || si > file_table[fi].nb_streams - 1) {
2031             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2032             av_exit(1);
2033         }
2034         fi = stream_maps[i].sync_file_index;
2035         si = stream_maps[i].sync_stream_index;
2036         if (fi < 0 || fi > nb_input_files - 1 ||
2037             si < 0 || si > file_table[fi].nb_streams - 1) {
2038             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2039             av_exit(1);
2040         }
2041     }
2042
2043     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2044     if (!ost_table)
2045         goto fail;
2046     for(i=0;i<nb_ostreams;i++) {
2047         ost = av_mallocz(sizeof(AVOutputStream));
2048         if (!ost)
2049             goto fail;
2050         ost_table[i] = ost;
2051     }
2052
2053     n = 0;
2054     for(k=0;k<nb_output_files;k++) {
2055         os = output_files[k];
2056         for(i=0;i<os->nb_streams;i++,n++) {
2057             int found;
2058             ost = ost_table[n];
2059             ost->file_index = k;
2060             ost->index = i;
2061             ost->st = os->streams[i];
2062             if (nb_stream_maps > 0) {
2063                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2064                     stream_maps[n].stream_index;
2065
2066                 /* Sanity check that the stream types match */
2067                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2068                     int i= ost->file_index;
2069                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2070                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2071                         stream_maps[n].file_index, stream_maps[n].stream_index,
2072                         ost->file_index, ost->index);
2073                     av_exit(1);
2074                 }
2075
2076             } else {
2077                 int best_nb_frames=-1;
2078                     /* get corresponding input stream index : we select the first one with the right type */
2079                     found = 0;
2080                     for(j=0;j<nb_istreams;j++) {
2081                         int skip=0;
2082                         ist = ist_table[j];
2083                         if(opt_programid){
2084                             int pi,si;
2085                             AVFormatContext *f= input_files[ ist->file_index ];
2086                             skip=1;
2087                             for(pi=0; pi<f->nb_programs; pi++){
2088                                 AVProgram *p= f->programs[pi];
2089                                 if(p->id == opt_programid)
2090                                     for(si=0; si<p->nb_stream_indexes; si++){
2091                                         if(f->streams[ p->stream_index[si] ] == ist->st)
2092                                             skip=0;
2093                                     }
2094                             }
2095                         }
2096                         if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2097                             ist->st->codec->codec_type == ost->st->codec->codec_type) {
2098                             if(best_nb_frames < ist->st->codec_info_nb_frames){
2099                                 best_nb_frames= ist->st->codec_info_nb_frames;
2100                                 ost->source_index = j;
2101                                 found = 1;
2102                             }
2103                         }
2104                     }
2105
2106                 if (!found) {
2107                     if(! opt_programid) {
2108                         /* try again and reuse existing stream */
2109                         for(j=0;j<nb_istreams;j++) {
2110                             ist = ist_table[j];
2111                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2112                                 && ist->st->discard != AVDISCARD_ALL) {
2113                                 ost->source_index = j;
2114                                 found = 1;
2115                             }
2116                         }
2117                     }
2118                     if (!found) {
2119                         int i= ost->file_index;
2120                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2121                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2122                                 ost->file_index, ost->index);
2123                         av_exit(1);
2124                     }
2125                 }
2126             }
2127             ist = ist_table[ost->source_index];
2128             ist->discard = 0;
2129             ost->sync_ist = (nb_stream_maps > 0) ?
2130                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2131                          stream_maps[n].sync_stream_index] : ist;
2132         }
2133     }
2134
2135     /* for each output stream, we compute the right encoding parameters */
2136     for(i=0;i<nb_ostreams;i++) {
2137         AVMetadataTag *t = NULL;
2138         ost = ost_table[i];
2139         os = output_files[ost->file_index];
2140         ist = ist_table[ost->source_index];
2141
2142         codec = ost->st->codec;
2143         icodec = ist->st->codec;
2144
2145         while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2146             av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2147         }
2148
2149         ost->st->disposition = ist->st->disposition;
2150         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2151         codec->chroma_sample_location = icodec->chroma_sample_location;
2152
2153         if (ost->st->stream_copy) {
2154             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2155
2156             if (extra_size > INT_MAX)
2157                 goto fail;
2158
2159             /* if stream_copy is selected, no need to decode or encode */
2160             codec->codec_id = icodec->codec_id;
2161             codec->codec_type = icodec->codec_type;
2162
2163             if(!codec->codec_tag){
2164                 if(   !os->oformat->codec_tag
2165                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2166                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2167                     codec->codec_tag = icodec->codec_tag;
2168             }
2169
2170             codec->bit_rate = icodec->bit_rate;
2171             codec->extradata= av_mallocz(extra_size);
2172             if (!codec->extradata)
2173                 goto fail;
2174             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2175             codec->extradata_size= icodec->extradata_size;
2176             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){
2177                 codec->time_base = icodec->time_base;
2178                 codec->time_base.num *= icodec->ticks_per_frame;
2179             }else
2180                 codec->time_base = ist->st->time_base;
2181             switch(codec->codec_type) {
2182             case AVMEDIA_TYPE_AUDIO:
2183                 if(audio_volume != 256) {
2184                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2185                     av_exit(1);
2186                 }
2187                 codec->channel_layout = icodec->channel_layout;
2188                 codec->sample_rate = icodec->sample_rate;
2189                 codec->channels = icodec->channels;
2190                 codec->frame_size = icodec->frame_size;
2191                 codec->block_align= icodec->block_align;
2192                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2193                     codec->block_align= 0;
2194                 if(codec->codec_id == CODEC_ID_AC3)
2195                     codec->block_align= 0;
2196                 break;
2197             case AVMEDIA_TYPE_VIDEO:
2198                 codec->pix_fmt = icodec->pix_fmt;
2199                 codec->width = icodec->width;
2200                 codec->height = icodec->height;
2201                 codec->has_b_frames = icodec->has_b_frames;
2202                 break;
2203             case AVMEDIA_TYPE_SUBTITLE:
2204                 codec->width = icodec->width;
2205                 codec->height = icodec->height;
2206                 break;
2207             default:
2208                 abort();
2209             }
2210         } else {
2211             switch(codec->codec_type) {
2212             case AVMEDIA_TYPE_AUDIO:
2213                 ost->fifo= av_fifo_alloc(1024);
2214                 if(!ost->fifo)
2215                     goto fail;
2216                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2217                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2218                 icodec->request_channels = codec->channels;
2219                 ist->decoding_needed = 1;
2220                 ost->encoding_needed = 1;
2221                 break;
2222             case AVMEDIA_TYPE_VIDEO:
2223                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2224                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2225                     av_exit(1);
2226                 }
2227                 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2228                 ost->video_resample = ((codec->width != icodec->width -
2229                                 (frame_leftBand + frame_rightBand)) ||
2230                         (codec->height != icodec->height -
2231                                 (frame_topBand  + frame_bottomBand)) ||
2232                         (codec->pix_fmt != icodec->pix_fmt));
2233                 if (ost->video_crop) {
2234                     ost->topBand    = ost->original_topBand    = frame_topBand;
2235                     ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2236                     ost->leftBand   = ost->original_leftBand   = frame_leftBand;
2237                     ost->rightBand  = ost->original_rightBand  = frame_rightBand;
2238                 }
2239                 if (ost->video_resample) {
2240                     avcodec_get_frame_defaults(&ost->pict_tmp);
2241                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2242                                          codec->width, codec->height)) {
2243                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2244                         av_exit(1);
2245                     }
2246                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2247                     ost->img_resample_ctx = sws_getContext(
2248                             icodec->width - (frame_leftBand + frame_rightBand),
2249                             icodec->height - (frame_topBand + frame_bottomBand),
2250                             icodec->pix_fmt,
2251                             codec->width,
2252                             codec->height,
2253                             codec->pix_fmt,
2254                             sws_flags, NULL, NULL, NULL);
2255                     if (ost->img_resample_ctx == NULL) {
2256                         fprintf(stderr, "Cannot get resampling context\n");
2257                         av_exit(1);
2258                     }
2259
2260 #if !CONFIG_AVFILTER
2261                     ost->original_height = icodec->height;
2262                     ost->original_width  = icodec->width;
2263 #endif
2264                     codec->bits_per_raw_sample= 0;
2265                 }
2266                 ost->resample_height = icodec->height - (frame_topBand  + frame_bottomBand);
2267                 ost->resample_width  = icodec->width  - (frame_leftBand + frame_rightBand);
2268                 ost->resample_pix_fmt= icodec->pix_fmt;
2269                 ost->encoding_needed = 1;
2270                 ist->decoding_needed = 1;
2271
2272 #if CONFIG_AVFILTER
2273                 if (configure_filters(ist, ost)) {
2274                     fprintf(stderr, "Error opening filters!\n");
2275                     exit(1);
2276                 }
2277 #endif
2278                 break;
2279             case AVMEDIA_TYPE_SUBTITLE:
2280                 ost->encoding_needed = 1;
2281                 ist->decoding_needed = 1;
2282                 break;
2283             default:
2284                 abort();
2285                 break;
2286             }
2287             /* two pass mode */
2288             if (ost->encoding_needed &&
2289                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2290                 char logfilename[1024];
2291                 FILE *f;
2292
2293                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2294                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2295                          i);
2296                 if (codec->flags & CODEC_FLAG_PASS1) {
2297                     f = fopen(logfilename, "wb");
2298                     if (!f) {
2299                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2300                         av_exit(1);
2301                     }
2302                     ost->logfile = f;
2303                 } else {
2304                     char  *logbuffer;
2305                     size_t logbuffer_size;
2306                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2307                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2308                         av_exit(1);
2309                     }
2310                     codec->stats_in = logbuffer;
2311                 }
2312             }
2313         }
2314         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2315             int size= codec->width * codec->height;
2316             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2317         }
2318     }
2319
2320     if (!bit_buffer)
2321         bit_buffer = av_malloc(bit_buffer_size);
2322     if (!bit_buffer) {
2323         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2324                 bit_buffer_size);
2325         ret = AVERROR(ENOMEM);
2326         goto fail;
2327     }
2328
2329     /* open each encoder */
2330     for(i=0;i<nb_ostreams;i++) {
2331         ost = ost_table[i];
2332         if (ost->encoding_needed) {
2333             AVCodec *codec = output_codecs[i];
2334             if (!codec)
2335                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2336             if (!codec) {
2337                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2338                          ost->st->codec->codec_id, ost->file_index, ost->index);
2339                 ret = AVERROR(EINVAL);
2340                 goto dump_format;
2341             }
2342             if (avcodec_open(ost->st->codec, codec) < 0) {
2343                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2344                         ost->file_index, ost->index);
2345                 ret = AVERROR(EINVAL);
2346                 goto dump_format;
2347             }
2348             extra_size += ost->st->codec->extradata_size;
2349         }
2350     }
2351
2352     /* open each decoder */
2353     for(i=0;i<nb_istreams;i++) {
2354         ist = ist_table[i];
2355         if (ist->decoding_needed) {
2356             AVCodec *codec = input_codecs[i];
2357             if (!codec)
2358                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2359             if (!codec) {
2360                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2361                         ist->st->codec->codec_id, ist->file_index, ist->index);
2362                 ret = AVERROR(EINVAL);
2363                 goto dump_format;
2364             }
2365             if (avcodec_open(ist->st->codec, codec) < 0) {
2366                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2367                         ist->file_index, ist->index);
2368                 ret = AVERROR(EINVAL);
2369                 goto dump_format;
2370             }
2371             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2372             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2373         }
2374     }
2375
2376     /* init pts */
2377     for(i=0;i<nb_istreams;i++) {
2378         AVStream *st;
2379         ist = ist_table[i];
2380         st= ist->st;
2381         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2382         ist->next_pts = AV_NOPTS_VALUE;
2383         ist->is_start = 1;
2384     }
2385
2386     /* set meta data information from input file if required */
2387     for (i=0;i<nb_meta_data_maps;i++) {
2388         AVFormatContext *out_file;
2389         AVFormatContext *in_file;
2390         AVMetadataTag *mtag;
2391
2392         int out_file_index = meta_data_maps[i].out_file;
2393         int in_file_index = meta_data_maps[i].in_file;
2394         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2395             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2396                      out_file_index, out_file_index, in_file_index);
2397             ret = AVERROR(EINVAL);
2398             goto dump_format;
2399         }
2400         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2401             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2402                      in_file_index, out_file_index, in_file_index);
2403             ret = AVERROR(EINVAL);
2404             goto dump_format;
2405         }
2406
2407         out_file = output_files[out_file_index];
2408         in_file = input_files[in_file_index];
2409
2410
2411         mtag=NULL;
2412         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2413             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2414         av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2415                                     in_file->iformat->metadata_conv);
2416     }
2417
2418     /* copy chapters from the first input file that has them*/
2419     for (i = 0; i < nb_input_files; i++) {
2420         if (!input_files[i]->nb_chapters)
2421             continue;
2422
2423         for (j = 0; j < nb_output_files; j++)
2424             if ((ret = copy_chapters(i, j)) < 0)
2425                 goto dump_format;
2426     }
2427
2428     /* open files and write file headers */
2429     for(i=0;i<nb_output_files;i++) {
2430         os = output_files[i];
2431         if (av_write_header(os) < 0) {
2432             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2433             ret = AVERROR(EINVAL);
2434             goto dump_format;
2435         }
2436         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2437             want_sdp = 0;
2438         }
2439     }
2440
2441  dump_format:
2442     /* dump the file output parameters - cannot be done before in case
2443        of stream copy */
2444     for(i=0;i<nb_output_files;i++) {
2445         dump_format(output_files[i], i, output_files[i]->filename, 1);
2446     }
2447
2448     /* dump the stream mapping */
2449     if (verbose >= 0) {
2450         fprintf(stderr, "Stream mapping:\n");
2451         for(i=0;i<nb_ostreams;i++) {
2452             ost = ost_table[i];
2453             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2454                     ist_table[ost->source_index]->file_index,
2455                     ist_table[ost->source_index]->index,
2456                     ost->file_index,
2457                     ost->index);
2458             if (ost->sync_ist != ist_table[ost->source_index])
2459                 fprintf(stderr, " [sync #%d.%d]",
2460                         ost->sync_ist->file_index,
2461                         ost->sync_ist->index);
2462             fprintf(stderr, "\n");
2463         }
2464     }
2465
2466     if (ret) {
2467         fprintf(stderr, "%s\n", error);
2468         goto fail;
2469     }
2470
2471     if (want_sdp) {
2472         print_sdp(output_files, nb_output_files);
2473     }
2474
2475     if (!using_stdin && verbose >= 0) {
2476         fprintf(stderr, "Press [q] to stop encoding\n");
2477         url_set_interrupt_cb(decode_interrupt_cb);
2478     }
2479     term_init();
2480
2481     timer_start = av_gettime();
2482
2483     for(; received_sigterm == 0;) {
2484         int file_index, ist_index;
2485         AVPacket pkt;
2486         double ipts_min;
2487         double opts_min;
2488
2489     redo:
2490         ipts_min= 1e100;
2491         opts_min= 1e100;
2492         /* if 'q' pressed, exits */
2493         if (!using_stdin) {
2494             if (q_pressed)
2495                 break;
2496             /* read_key() returns 0 on EOF */
2497             key = read_key();
2498             if (key == 'q')
2499                 break;
2500         }
2501
2502         /* select the stream that we must read now by looking at the
2503            smallest output pts */
2504         file_index = -1;
2505         for(i=0;i<nb_ostreams;i++) {
2506             double ipts, opts;
2507             ost = ost_table[i];
2508             os = output_files[ost->file_index];
2509             ist = ist_table[ost->source_index];
2510             if(ist->is_past_recording_time || no_packet[ist->file_index])
2511                 continue;
2512                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2513             ipts = (double)ist->pts;
2514             if (!file_table[ist->file_index].eof_reached){
2515                 if(ipts < ipts_min) {
2516                     ipts_min = ipts;
2517                     if(input_sync ) file_index = ist->file_index;
2518                 }
2519                 if(opts < opts_min) {
2520                     opts_min = opts;
2521                     if(!input_sync) file_index = ist->file_index;
2522                 }
2523             }
2524             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2525                 file_index= -1;
2526                 break;
2527             }
2528         }
2529         /* if none, if is finished */
2530         if (file_index < 0) {
2531             if(no_packet_count){
2532                 no_packet_count=0;
2533                 memset(no_packet, 0, sizeof(no_packet));
2534                 usleep(10000);
2535                 continue;
2536             }
2537             break;
2538         }
2539
2540         /* finish if limit size exhausted */
2541         if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2542             break;
2543
2544         /* read a frame from it and output it in the fifo */
2545         is = input_files[file_index];
2546         ret= av_read_frame(is, &pkt);
2547         if(ret == AVERROR(EAGAIN)){
2548             no_packet[file_index]=1;
2549             no_packet_count++;
2550             continue;
2551         }
2552         if (ret < 0) {
2553             file_table[file_index].eof_reached = 1;
2554             if (opt_shortest)
2555                 break;
2556             else
2557                 continue;
2558         }
2559
2560         no_packet_count=0;
2561         memset(no_packet, 0, sizeof(no_packet));
2562
2563         if (do_pkt_dump) {
2564             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2565         }
2566         /* the following test is needed in case new streams appear
2567            dynamically in stream : we ignore them */
2568         if (pkt.stream_index >= file_table[file_index].nb_streams)
2569             goto discard_packet;
2570         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2571         ist = ist_table[ist_index];
2572         if (ist->discard)
2573             goto discard_packet;
2574
2575         if (pkt.dts != AV_NOPTS_VALUE)
2576             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2577         if (pkt.pts != AV_NOPTS_VALUE)
2578             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2579
2580         if(input_files_ts_scale[file_index][pkt.stream_index]){
2581             if(pkt.pts != AV_NOPTS_VALUE)
2582                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2583             if(pkt.dts != AV_NOPTS_VALUE)
2584                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2585         }
2586
2587 //        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);
2588         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2589             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2590             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2591             int64_t delta= pkt_dts - ist->next_pts;
2592             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2593                 input_files_ts_offset[ist->file_index]-= delta;
2594                 if (verbose > 2)
2595                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2596                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2597                 if(pkt.pts != AV_NOPTS_VALUE)
2598                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2599             }
2600         }
2601
2602         /* finish if recording time exhausted */
2603         if (recording_time != INT64_MAX &&
2604             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2605             ist->is_past_recording_time = 1;
2606             goto discard_packet;
2607         }
2608
2609         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2610         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2611
2612             if (verbose >= 0)
2613                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2614                         ist->file_index, ist->index);
2615             if (exit_on_error)
2616                 av_exit(1);
2617             av_free_packet(&pkt);
2618             goto redo;
2619         }
2620
2621     discard_packet:
2622         av_free_packet(&pkt);
2623
2624         /* dump report by using the output first video and audio streams */
2625         print_report(output_files, ost_table, nb_ostreams, 0);
2626     }
2627
2628     /* at the end of stream, we must flush the decoder buffers */
2629     for(i=0;i<nb_istreams;i++) {
2630         ist = ist_table[i];
2631         if (ist->decoding_needed) {
2632             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2633         }
2634     }
2635
2636     term_exit();
2637
2638     /* write the trailer if needed and close file */
2639     for(i=0;i<nb_output_files;i++) {
2640         os = output_files[i];
2641         av_write_trailer(os);
2642     }
2643
2644     /* dump report by using the first video and audio streams */
2645     print_report(output_files, ost_table, nb_ostreams, 1);
2646
2647     /* close each encoder */
2648     for(i=0;i<nb_ostreams;i++) {
2649         ost = ost_table[i];
2650         if (ost->encoding_needed) {
2651             av_freep(&ost->st->codec->stats_in);
2652             avcodec_close(ost->st->codec);
2653         }
2654     }
2655
2656     /* close each decoder */
2657     for(i=0;i<nb_istreams;i++) {
2658         ist = ist_table[i];
2659         if (ist->decoding_needed) {
2660             avcodec_close(ist->st->codec);
2661         }
2662     }
2663 #if CONFIG_AVFILTER
2664     if (graph) {
2665         avfilter_graph_destroy(graph);
2666         av_freep(&graph);
2667     }
2668 #endif
2669
2670     /* finished ! */
2671     ret = 0;
2672
2673  fail:
2674     av_freep(&bit_buffer);
2675     av_free(file_table);
2676
2677     if (ist_table) {
2678         for(i=0;i<nb_istreams;i++) {
2679             ist = ist_table[i];
2680             av_free(ist);
2681         }
2682         av_free(ist_table);
2683     }
2684     if (ost_table) {
2685         for(i=0;i<nb_ostreams;i++) {
2686             ost = ost_table[i];
2687             if (ost) {
2688                 if (ost->st->stream_copy)
2689                     av_freep(&ost->st->codec->extradata);
2690                 if (ost->logfile) {
2691                     fclose(ost->logfile);
2692                     ost->logfile = NULL;
2693                 }
2694                 av_fifo_free(ost->fifo); /* works even if fifo is not
2695                                              initialized but set to zero */
2696                 av_free(ost->pict_tmp.data[0]);
2697                 if (ost->video_resample)
2698                     sws_freeContext(ost->img_resample_ctx);
2699                 if (ost->resample)
2700                     audio_resample_close(ost->resample);
2701                 if (ost->reformat_ctx)
2702                     av_audio_convert_free(ost->reformat_ctx);
2703                 av_free(ost);
2704             }
2705         }
2706         av_free(ost_table);
2707     }
2708     return ret;
2709 }
2710
2711 static void opt_format(const char *arg)
2712 {
2713     /* compatibility stuff for pgmyuv */
2714     if (!strcmp(arg, "pgmyuv")) {
2715         pgmyuv_compatibility_hack=1;
2716 //        opt_image_format(arg);
2717         arg = "image2";
2718         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2719     }
2720
2721     last_asked_format = arg;
2722 }
2723
2724 static void opt_video_rc_override_string(const char *arg)
2725 {
2726     video_rc_override_string = arg;
2727 }
2728
2729 static int opt_me_threshold(const char *opt, const char *arg)
2730 {
2731     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2732     return 0;
2733 }
2734
2735 static int opt_verbose(const char *opt, const char *arg)
2736 {
2737     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2738     return 0;
2739 }
2740
2741 static int opt_frame_rate(const char *opt, const char *arg)
2742 {
2743     if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2744         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2745         av_exit(1);
2746     }
2747     return 0;
2748 }
2749
2750 static int opt_bitrate(const char *opt, const char *arg)
2751 {
2752     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2753
2754     opt_default(opt, arg);
2755
2756     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2757         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2758
2759     return 0;
2760 }
2761
2762 static void opt_frame_crop_top(const char *arg)
2763 {
2764     frame_topBand = atoi(arg);
2765     if (frame_topBand < 0) {
2766         fprintf(stderr, "Incorrect top crop size\n");
2767         av_exit(1);
2768     }
2769     if ((frame_topBand) >= frame_height){
2770         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2771         av_exit(1);
2772     }
2773     frame_height -= frame_topBand;
2774 }
2775
2776 static void opt_frame_crop_bottom(const char *arg)
2777 {
2778     frame_bottomBand = atoi(arg);
2779     if (frame_bottomBand < 0) {
2780         fprintf(stderr, "Incorrect bottom crop size\n");
2781         av_exit(1);
2782     }
2783     if ((frame_bottomBand) >= frame_height){
2784         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2785         av_exit(1);
2786     }
2787     frame_height -= frame_bottomBand;
2788 }
2789
2790 static void opt_frame_crop_left(const char *arg)
2791 {
2792     frame_leftBand = atoi(arg);
2793     if (frame_leftBand < 0) {
2794         fprintf(stderr, "Incorrect left crop size\n");
2795         av_exit(1);
2796     }
2797     if ((frame_leftBand) >= frame_width){
2798         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2799         av_exit(1);
2800     }
2801     frame_width -= frame_leftBand;
2802 }
2803
2804 static void opt_frame_crop_right(const char *arg)
2805 {
2806     frame_rightBand = atoi(arg);
2807     if (frame_rightBand < 0) {
2808         fprintf(stderr, "Incorrect right crop size\n");
2809         av_exit(1);
2810     }
2811     if ((frame_rightBand) >= frame_width){
2812         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2813         av_exit(1);
2814     }
2815     frame_width -= frame_rightBand;
2816 }
2817
2818 static void opt_frame_size(const char *arg)
2819 {
2820     if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2821         fprintf(stderr, "Incorrect frame size\n");
2822         av_exit(1);
2823     }
2824 }
2825
2826 static void opt_pad(const char *arg) {
2827     fprintf(stderr, "Please use vf=pad\n");
2828     av_exit(1);
2829 }
2830
2831 static void opt_frame_pix_fmt(const char *arg)
2832 {
2833     if (strcmp(arg, "list")) {
2834         frame_pix_fmt = av_get_pix_fmt(arg);
2835         if (frame_pix_fmt == PIX_FMT_NONE) {
2836             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2837             av_exit(1);
2838         }
2839     } else {
2840         show_pix_fmts();
2841         av_exit(0);
2842     }
2843 }
2844
2845 static void opt_frame_aspect_ratio(const char *arg)
2846 {
2847     int x = 0, y = 0;
2848     double ar = 0;
2849     const char *p;
2850     char *end;
2851
2852     p = strchr(arg, ':');
2853     if (p) {
2854         x = strtol(arg, &end, 10);
2855         if (end == p)
2856             y = strtol(end+1, &end, 10);
2857         if (x > 0 && y > 0)
2858             ar = (double)x / (double)y;
2859     } else
2860         ar = strtod(arg, NULL);
2861
2862     if (!ar) {
2863         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2864         av_exit(1);
2865     }
2866     frame_aspect_ratio = ar;
2867 }
2868
2869 static int opt_metadata(const char *opt, const char *arg)
2870 {
2871     char *mid= strchr(arg, '=');
2872
2873     if(!mid){
2874         fprintf(stderr, "Missing =\n");
2875         av_exit(1);
2876     }
2877     *mid++= 0;
2878
2879     metadata_count++;
2880     metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2881     metadata[metadata_count-1].key  = av_strdup(arg);
2882     metadata[metadata_count-1].value= av_strdup(mid);
2883
2884     return 0;
2885 }
2886
2887 static void opt_qscale(const char *arg)
2888 {
2889     video_qscale = atof(arg);
2890     if (video_qscale <= 0 ||
2891         video_qscale > 255) {
2892         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2893         av_exit(1);
2894     }
2895 }
2896
2897 static void opt_top_field_first(const char *arg)
2898 {
2899     top_field_first= atoi(arg);
2900 }
2901
2902 static int opt_thread_count(const char *opt, const char *arg)
2903 {
2904     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905 #if !HAVE_THREADS
2906     if (verbose >= 0)
2907         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2908 #endif
2909     return 0;
2910 }
2911
2912 static void opt_audio_sample_fmt(const char *arg)
2913 {
2914     if (strcmp(arg, "list"))
2915         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2916     else {
2917         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2918         av_exit(0);
2919     }
2920 }
2921
2922 static int opt_audio_rate(const char *opt, const char *arg)
2923 {
2924     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2925     return 0;
2926 }
2927
2928 static int opt_audio_channels(const char *opt, const char *arg)
2929 {
2930     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2931     return 0;
2932 }
2933
2934 static void opt_video_channel(const char *arg)
2935 {
2936     video_channel = strtol(arg, NULL, 0);
2937 }
2938
2939 static void opt_video_standard(const char *arg)
2940 {
2941     video_standard = av_strdup(arg);
2942 }
2943
2944 static void opt_codec(int *pstream_copy, char **pcodec_name,
2945                       int codec_type, const char *arg)
2946 {
2947     av_freep(pcodec_name);
2948     if (!strcmp(arg, "copy")) {
2949         *pstream_copy = 1;
2950     } else {
2951         *pcodec_name = av_strdup(arg);
2952     }
2953 }
2954
2955 static void opt_audio_codec(const char *arg)
2956 {
2957     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2958 }
2959
2960 static void opt_audio_tag(const char *arg)
2961 {
2962     char *tail;
2963     audio_codec_tag= strtol(arg, &tail, 0);
2964
2965     if(!tail || *tail)
2966         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2967 }
2968
2969 static void opt_video_tag(const char *arg)
2970 {
2971     char *tail;
2972     video_codec_tag= strtol(arg, &tail, 0);
2973
2974     if(!tail || *tail)
2975         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2976 }
2977
2978 static void opt_video_codec(const char *arg)
2979 {
2980     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2981 }
2982
2983 static void opt_subtitle_codec(const char *arg)
2984 {
2985     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2986 }
2987
2988 static void opt_subtitle_tag(const char *arg)
2989 {
2990     char *tail;
2991     subtitle_codec_tag= strtol(arg, &tail, 0);
2992
2993     if(!tail || *tail)
2994         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2995 }
2996
2997 static void opt_map(const char *arg)
2998 {
2999     AVStreamMap *m;
3000     char *p;
3001
3002     m = &stream_maps[nb_stream_maps++];
3003
3004     m->file_index = strtol(arg, &p, 0);
3005     if (*p)
3006         p++;
3007
3008     m->stream_index = strtol(p, &p, 0);
3009     if (*p) {
3010         p++;
3011         m->sync_file_index = strtol(p, &p, 0);
3012         if (*p)
3013             p++;
3014         m->sync_stream_index = strtol(p, &p, 0);
3015     } else {
3016         m->sync_file_index = m->file_index;
3017         m->sync_stream_index = m->stream_index;
3018     }
3019 }
3020
3021 static void opt_map_meta_data(const char *arg)
3022 {
3023     AVMetaDataMap *m;
3024     char *p;
3025
3026     m = &meta_data_maps[nb_meta_data_maps++];
3027
3028     m->out_file = strtol(arg, &p, 0);
3029     if (*p)
3030         p++;
3031
3032     m->in_file = strtol(p, &p, 0);
3033 }
3034
3035 static void opt_input_ts_scale(const char *arg)
3036 {
3037     unsigned int stream;
3038     double scale;
3039     char *p;
3040
3041     stream = strtol(arg, &p, 0);
3042     if (*p)
3043         p++;
3044     scale= strtod(p, &p);
3045
3046     if(stream >= MAX_STREAMS)
3047         av_exit(1);
3048
3049     input_files_ts_scale[nb_input_files][stream]= scale;
3050 }
3051
3052 static int opt_recording_time(const char *opt, const char *arg)
3053 {
3054     recording_time = parse_time_or_die(opt, arg, 1);
3055     return 0;
3056 }
3057
3058 static int opt_start_time(const char *opt, const char *arg)
3059 {
3060     start_time = parse_time_or_die(opt, arg, 1);
3061     return 0;
3062 }
3063
3064 static int opt_rec_timestamp(const char *opt, const char *arg)
3065 {
3066     rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3067     return 0;
3068 }
3069
3070 static int opt_input_ts_offset(const char *opt, const char *arg)
3071 {
3072     input_ts_offset = parse_time_or_die(opt, arg, 1);
3073     return 0;
3074 }
3075
3076 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3077 {
3078     const char *codec_string = encoder ? "encoder" : "decoder";
3079     AVCodec *codec;
3080
3081     if(!name)
3082         return CODEC_ID_NONE;
3083     codec = encoder ?
3084         avcodec_find_encoder_by_name(name) :
3085         avcodec_find_decoder_by_name(name);
3086     if(!codec) {
3087         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3088         av_exit(1);
3089     }
3090     if(codec->type != type) {
3091         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3092         av_exit(1);
3093     }
3094     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3095        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3096         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3097                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3098                 codec_string, codec->name);
3099         codec = encoder ?
3100             avcodec_find_encoder(codec->id) :
3101             avcodec_find_decoder(codec->id);
3102         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3103             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3104                     codec_string, codec->name);
3105         av_exit(1);
3106     }
3107     return codec->id;
3108 }
3109
3110 static void opt_input_file(const char *filename)
3111 {
3112     AVFormatContext *ic;
3113     AVFormatParameters params, *ap = &params;
3114     AVInputFormat *file_iformat = NULL;
3115     int err, i, ret, rfps, rfps_base;
3116     int64_t timestamp;
3117
3118     if (last_asked_format) {
3119         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3120             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3121             av_exit(1);
3122         }
3123         last_asked_format = NULL;
3124     }
3125
3126     if (!strcmp(filename, "-"))
3127         filename = "pipe:";
3128
3129     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3130                     !strcmp(filename, "/dev/stdin");
3131
3132     /* get default parameters from command line */
3133     ic = avformat_alloc_context();
3134     if (!ic) {
3135         print_error(filename, AVERROR(ENOMEM));
3136         av_exit(1);
3137     }
3138
3139     memset(ap, 0, sizeof(*ap));
3140     ap->prealloced_context = 1;
3141     ap->sample_rate = audio_sample_rate;
3142     ap->channels = audio_channels;
3143     ap->time_base.den = frame_rate.num;
3144     ap->time_base.num = frame_rate.den;
3145     ap->width = frame_width;
3146     ap->height = frame_height;
3147     ap->pix_fmt = frame_pix_fmt;
3148    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3149     ap->channel = video_channel;
3150     ap->standard = video_standard;
3151
3152     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3153
3154     ic->video_codec_id   =
3155         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3156                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3157     ic->audio_codec_id   =
3158         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3159                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3160     ic->subtitle_codec_id=
3161         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3162                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3163     ic->flags |= AVFMT_FLAG_NONBLOCK;
3164
3165     if(pgmyuv_compatibility_hack)
3166         ic->video_codec_id= CODEC_ID_PGMYUV;
3167
3168     /* open the input file with generic libav function */
3169     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3170     if (err < 0) {
3171         print_error(filename, err);
3172         av_exit(1);
3173     }
3174     if(opt_programid) {
3175         int i, j;
3176         int found=0;
3177         for(i=0; i<ic->nb_streams; i++){
3178             ic->streams[i]->discard= AVDISCARD_ALL;
3179         }
3180         for(i=0; i<ic->nb_programs; i++){
3181             AVProgram *p= ic->programs[i];
3182             if(p->id != opt_programid){
3183                 p->discard = AVDISCARD_ALL;
3184             }else{
3185                 found=1;
3186                 for(j=0; j<p->nb_stream_indexes; j++){
3187                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3188                 }
3189             }
3190         }
3191         if(!found){
3192             fprintf(stderr, "Specified program id not found\n");
3193             av_exit(1);
3194         }
3195         opt_programid=0;
3196     }
3197
3198     ic->loop_input = loop_input;
3199
3200     /* If not enough info to get the stream parameters, we decode the
3201        first frames to get it. (used in mpeg case for example) */
3202     ret = av_find_stream_info(ic);
3203     if (ret < 0 && verbose >= 0) {
3204         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3205         av_exit(1);
3206     }
3207
3208     timestamp = start_time;
3209     /* add the stream start time */
3210     if (ic->start_time != AV_NOPTS_VALUE)
3211         timestamp += ic->start_time;
3212
3213     /* if seeking requested, we execute it */
3214     if (start_time != 0) {
3215         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3216         if (ret < 0) {
3217             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3218                     filename, (double)timestamp / AV_TIME_BASE);
3219         }
3220         /* reset seek info */
3221         start_time = 0;
3222     }
3223
3224     /* update the current parameters so that they match the one of the input stream */
3225     for(i=0;i<ic->nb_streams;i++) {
3226         AVStream *st = ic->streams[i];
3227         AVCodecContext *enc = st->codec;
3228         avcodec_thread_init(enc, thread_count);
3229         switch(enc->codec_type) {
3230         case AVMEDIA_TYPE_AUDIO:
3231             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3232             //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3233             channel_layout = enc->channel_layout;
3234             audio_channels = enc->channels;
3235             audio_sample_rate = enc->sample_rate;
3236             audio_sample_fmt = enc->sample_fmt;
3237             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3238             if(audio_disable)
3239                 st->discard= AVDISCARD_ALL;
3240             break;
3241         case AVMEDIA_TYPE_VIDEO:
3242             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3243             frame_height = enc->height;
3244             frame_width = enc->width;
3245             if(ic->streams[i]->sample_aspect_ratio.num)
3246                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3247             else
3248                 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3249             frame_aspect_ratio *= (float) enc->width / enc->height;
3250             frame_pix_fmt = enc->pix_fmt;
3251             rfps      = ic->streams[i]->r_frame_rate.num;
3252             rfps_base = ic->streams[i]->r_frame_rate.den;
3253             if(enc->lowres) {
3254                 enc->flags |= CODEC_FLAG_EMU_EDGE;
3255                 frame_height >>= enc->lowres;
3256                 frame_width  >>= enc->lowres;
3257             }
3258             if(me_threshold)
3259                 enc->debug |= FF_DEBUG_MV;
3260
3261             if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3262
3263                 if (verbose >= 0)
3264                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3265                             i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3266
3267                     (float)rfps / rfps_base, rfps, rfps_base);
3268             }
3269             /* update the current frame rate to match the stream frame rate */
3270             frame_rate.num = rfps;
3271             frame_rate.den = rfps_base;
3272
3273             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3274             if(video_disable)
3275                 st->discard= AVDISCARD_ALL;
3276             else if(video_discard)
3277                 st->discard= video_discard;
3278             break;
3279         case AVMEDIA_TYPE_DATA:
3280             break;
3281         case AVMEDIA_TYPE_SUBTITLE:
3282             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3283             if(subtitle_disable)
3284                 st->discard = AVDISCARD_ALL;
3285             break;
3286         case AVMEDIA_TYPE_ATTACHMENT:
3287         case AVMEDIA_TYPE_UNKNOWN:
3288             nb_icodecs++;
3289             break;
3290         default:
3291             abort();
3292         }
3293     }
3294
3295     input_files[nb_input_files] = ic;
3296     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3297     /* dump the file content */
3298     if (verbose >= 0)
3299         dump_format(ic, nb_input_files, filename, 0);
3300
3301     nb_input_files++;
3302
3303     video_channel = 0;
3304
3305     av_freep(&video_codec_name);
3306     av_freep(&audio_codec_name);
3307     av_freep(&subtitle_codec_name);
3308 }
3309
3310 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3311                                          int *has_subtitle_ptr)
3312 {
3313     int has_video, has_audio, has_subtitle, i, j;
3314     AVFormatContext *ic;
3315
3316     has_video = 0;
3317     has_audio = 0;
3318     has_subtitle = 0;
3319     for(j=0;j<nb_input_files;j++) {
3320         ic = input_files[j];
3321         for(i=0;i<ic->nb_streams;i++) {
3322             AVCodecContext *enc = ic->streams[i]->codec;
3323             switch(enc->codec_type) {
3324             case AVMEDIA_TYPE_AUDIO:
3325                 has_audio = 1;
3326                 break;
3327             case AVMEDIA_TYPE_VIDEO:
3328                 has_video = 1;
3329                 break;
3330             case AVMEDIA_TYPE_SUBTITLE:
3331                 has_subtitle = 1;
3332                 break;
3333             case AVMEDIA_TYPE_DATA:
3334             case AVMEDIA_TYPE_ATTACHMENT:
3335             case AVMEDIA_TYPE_UNKNOWN:
3336                 break;
3337             default:
3338                 abort();
3339             }
3340         }
3341     }
3342     *has_video_ptr = has_video;
3343     *has_audio_ptr = has_audio;
3344     *has_subtitle_ptr = has_subtitle;
3345 }
3346
3347 static void new_video_stream(AVFormatContext *oc)
3348 {
3349     AVStream *st;
3350     AVCodecContext *video_enc;
3351     enum CodecID codec_id;
3352
3353     st = av_new_stream(oc, oc->nb_streams);
3354     if (!st) {
3355         fprintf(stderr, "Could not alloc stream\n");
3356         av_exit(1);
3357     }
3358     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3359     bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3360     video_bitstream_filters= NULL;
3361
3362     avcodec_thread_init(st->codec, thread_count);
3363
3364     video_enc = st->codec;
3365
3366     if(video_codec_tag)
3367         video_enc->codec_tag= video_codec_tag;
3368
3369     if(   (video_global_header&1)
3370        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3371         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3372         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3373     }
3374     if(video_global_header&2){
3375         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3376         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3377     }
3378
3379     if (video_stream_copy) {
3380         st->stream_copy = 1;
3381         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3382         video_enc->sample_aspect_ratio =
3383         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3384     } else {
3385         const char *p;
3386         int i;
3387         AVCodec *codec;
3388         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3389
3390         if (video_codec_name) {
3391             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3392                                          video_enc->strict_std_compliance);
3393             codec = avcodec_find_encoder_by_name(video_codec_name);
3394             output_codecs[nb_ocodecs] = codec;
3395         } else {
3396             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3397             codec = avcodec_find_encoder(codec_id);
3398         }
3399
3400         video_enc->codec_id = codec_id;
3401
3402         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3403
3404         if (codec && codec->supported_framerates && !force_fps)
3405             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3406         video_enc->time_base.den = fps.num;
3407         video_enc->time_base.num = fps.den;
3408
3409         video_enc->width = frame_width;
3410         video_enc->height = frame_height;
3411         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3412         video_enc->pix_fmt = frame_pix_fmt;
3413         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3414
3415         choose_pixel_fmt(st, codec);
3416
3417         if (intra_only)
3418             video_enc->gop_size = 0;
3419         if (video_qscale || same_quality) {
3420             video_enc->flags |= CODEC_FLAG_QSCALE;
3421             video_enc->global_quality=
3422                 st->quality = FF_QP2LAMBDA * video_qscale;
3423         }
3424
3425         if(intra_matrix)
3426             video_enc->intra_matrix = intra_matrix;
3427         if(inter_matrix)
3428             video_enc->inter_matrix = inter_matrix;
3429
3430         p= video_rc_override_string;
3431         for(i=0; p; i++){
3432             int start, end, q;
3433             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3434             if(e!=3){
3435                 fprintf(stderr, "error parsing rc_override\n");
3436                 av_exit(1);
3437             }
3438             video_enc->rc_override=
3439                 av_realloc(video_enc->rc_override,
3440                            sizeof(RcOverride)*(i+1));
3441             video_enc->rc_override[i].start_frame= start;
3442             video_enc->rc_override[i].end_frame  = end;
3443             if(q>0){
3444                 video_enc->rc_override[i].qscale= q;
3445                 video_enc->rc_override[i].quality_factor= 1.0;
3446             }
3447             else{
3448                 video_enc->rc_override[i].qscale= 0;
3449                 video_enc->rc_override[i].quality_factor= -q/100.0;
3450             }
3451             p= strchr(p, '/');
3452             if(p) p++;
3453         }
3454         video_enc->rc_override_count=i;
3455         if (!video_enc->rc_initial_buffer_occupancy)
3456             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3457         video_enc->me_threshold= me_threshold;
3458         video_enc->intra_dc_precision= intra_dc_precision - 8;
3459
3460         if (do_psnr)
3461             video_enc->flags|= CODEC_FLAG_PSNR;
3462
3463         /* two pass mode */
3464         if (do_pass) {
3465             if (do_pass == 1) {
3466                 video_enc->flags |= CODEC_FLAG_PASS1;
3467             } else {
3468                 video_enc->flags |= CODEC_FLAG_PASS2;
3469             }
3470         }
3471     }
3472     nb_ocodecs++;
3473     if (video_language) {
3474         av_metadata_set2(&st->metadata, "language", video_language, 0);
3475         av_freep(&video_language);
3476     }
3477
3478     /* reset some key parameters */
3479     video_disable = 0;
3480     av_freep(&video_codec_name);
3481     video_stream_copy = 0;
3482     frame_pix_fmt = PIX_FMT_NONE;
3483 }
3484
3485 static void new_audio_stream(AVFormatContext *oc)
3486 {
3487     AVStream *st;
3488     AVCodecContext *audio_enc;
3489     enum CodecID codec_id;
3490
3491     st = av_new_stream(oc, oc->nb_streams);
3492     if (!st) {
3493         fprintf(stderr, "Could not alloc stream\n");
3494         av_exit(1);
3495     }
3496     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3497
3498     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3499     audio_bitstream_filters= NULL;
3500
3501     avcodec_thread_init(st->codec, thread_count);
3502
3503     audio_enc = st->codec;
3504     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3505
3506     if(audio_codec_tag)
3507         audio_enc->codec_tag= audio_codec_tag;
3508
3509     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3510         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3511         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3512     }
3513     if (audio_stream_copy) {
3514         st->stream_copy = 1;
3515         audio_enc->channels = audio_channels;
3516         audio_enc->sample_rate = audio_sample_rate;
3517     } else {
3518         AVCodec *codec;
3519
3520         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3521
3522         if (audio_codec_name) {
3523             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3524                                          audio_enc->strict_std_compliance);
3525             codec = avcodec_find_encoder_by_name(audio_codec_name);
3526             output_codecs[nb_ocodecs] = codec;
3527         } else {
3528             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3529             codec = avcodec_find_encoder(codec_id);
3530         }
3531         audio_enc->codec_id = codec_id;
3532
3533         if (audio_qscale > QSCALE_NONE) {
3534             audio_enc->flags |= CODEC_FLAG_QSCALE;
3535             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3536         }
3537         audio_enc->channels = audio_channels;
3538         audio_enc->sample_fmt = audio_sample_fmt;
3539         audio_enc->sample_rate = audio_sample_rate;
3540         audio_enc->channel_layout = channel_layout;
3541         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3542             audio_enc->channel_layout = 0;
3543         choose_sample_fmt(st, codec);
3544         choose_sample_rate(st, codec);
3545     }
3546     nb_ocodecs++;
3547     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3548     if (audio_language) {
3549         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3550         av_freep(&audio_language);
3551     }
3552
3553     /* reset some key parameters */
3554     audio_disable = 0;
3555     av_freep(&audio_codec_name);
3556     audio_stream_copy = 0;
3557 }
3558
3559 static void new_subtitle_stream(AVFormatContext *oc)
3560 {
3561     AVStream *st;
3562     AVCodecContext *subtitle_enc;
3563
3564     st = av_new_stream(oc, oc->nb_streams);
3565     if (!st) {
3566         fprintf(stderr, "Could not alloc stream\n");
3567         av_exit(1);
3568     }
3569     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3570
3571     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3572     subtitle_bitstream_filters= NULL;
3573
3574     subtitle_enc = st->codec;
3575     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3576
3577     if(subtitle_codec_tag)
3578         subtitle_enc->codec_tag= subtitle_codec_tag;
3579
3580     if (subtitle_stream_copy) {
3581         st->stream_copy = 1;
3582     } else {
3583         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3584         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3585                                                    subtitle_enc->strict_std_compliance);
3586         output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3587     }
3588     nb_ocodecs++;
3589
3590     if (subtitle_language) {
3591         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3592         av_freep(&subtitle_language);
3593     }
3594
3595     subtitle_disable = 0;
3596     av_freep(&subtitle_codec_name);
3597     subtitle_stream_copy = 0;
3598 }
3599
3600 static void opt_new_audio_stream(void)
3601 {
3602     AVFormatContext *oc;
3603     if (nb_output_files <= 0) {
3604         fprintf(stderr, "At least one output file must be specified\n");
3605         av_exit(1);
3606     }
3607     oc = output_files[nb_output_files - 1];
3608     new_audio_stream(oc);
3609 }
3610
3611 static void opt_new_video_stream(void)
3612 {
3613     AVFormatContext *oc;
3614     if (nb_output_files <= 0) {
3615         fprintf(stderr, "At least one output file must be specified\n");
3616         av_exit(1);
3617     }
3618     oc = output_files[nb_output_files - 1];
3619     new_video_stream(oc);
3620 }
3621
3622 static void opt_new_subtitle_stream(void)
3623 {
3624     AVFormatContext *oc;
3625     if (nb_output_files <= 0) {
3626         fprintf(stderr, "At least one output file must be specified\n");
3627         av_exit(1);
3628     }
3629     oc = output_files[nb_output_files - 1];
3630     new_subtitle_stream(oc);
3631 }
3632
3633 static void opt_output_file(const char *filename)
3634 {
3635     AVFormatContext *oc;
3636     int err, use_video, use_audio, use_subtitle;
3637     int input_has_video, input_has_audio, input_has_subtitle;
3638     AVFormatParameters params, *ap = &params;
3639     AVOutputFormat *file_oformat;
3640
3641     if (!strcmp(filename, "-"))
3642         filename = "pipe:";
3643
3644     oc = avformat_alloc_context();
3645     if (!oc) {
3646         print_error(filename, AVERROR(ENOMEM));
3647         av_exit(1);
3648     }
3649
3650     if (last_asked_format) {
3651         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3652         if (!file_oformat) {
3653             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3654             av_exit(1);
3655         }
3656         last_asked_format = NULL;
3657     } else {
3658         file_oformat = av_guess_format(NULL, filename, NULL);
3659         if (!file_oformat) {
3660             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3661                     filename);
3662             av_exit(1);
3663         }
3664     }
3665
3666     oc->oformat = file_oformat;
3667     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3668
3669     if (!strcmp(file_oformat->name, "ffm") &&
3670         av_strstart(filename, "http:", NULL)) {
3671         /* special case for files sent to ffserver: we get the stream
3672            parameters from ffserver */
3673         int err = read_ffserver_streams(oc, filename);
3674         if (err < 0) {
3675             print_error(filename, err);
3676             av_exit(1);
3677         }
3678     } else {
3679         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3680         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3681         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3682
3683         /* disable if no corresponding type found and at least one
3684            input file */
3685         if (nb_input_files > 0) {
3686             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3687                                          &input_has_subtitle);
3688             if (!input_has_video)
3689                 use_video = 0;
3690             if (!input_has_audio)
3691                 use_audio = 0;
3692             if (!input_has_subtitle)
3693                 use_subtitle = 0;
3694         }
3695