Rename rec_timestamp to recording_timestamp, for consistency with
[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 recording_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 #if CONFIG_AVFILTER
1518     int frame_available;
1519 #endif
1520
1521     AVPacket avpkt;
1522     int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1523
1524     if(ist->next_pts == AV_NOPTS_VALUE)
1525         ist->next_pts= ist->pts;
1526
1527     if (pkt == NULL) {
1528         /* EOF handling */
1529         av_init_packet(&avpkt);
1530         avpkt.data = NULL;
1531         avpkt.size = 0;
1532         goto handle_eof;
1533     } else {
1534         avpkt = *pkt;
1535     }
1536
1537     if(pkt->dts != AV_NOPTS_VALUE)
1538         ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1539
1540     //while we have more to decode or while the decoder did output something on EOF
1541     while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1542         uint8_t *data_buf, *decoded_data_buf;
1543         int data_size, decoded_data_size;
1544     handle_eof:
1545         ist->pts= ist->next_pts;
1546
1547         if(avpkt.size && avpkt.size != pkt->size &&
1548            ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1549             fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1550             ist->showed_multi_packet_warning=1;
1551         }
1552
1553         /* decode the packet if needed */
1554         decoded_data_buf = NULL; /* fail safe */
1555         decoded_data_size= 0;
1556         data_buf  = avpkt.data;
1557         data_size = avpkt.size;
1558         subtitle_to_free = NULL;
1559         if (ist->decoding_needed) {
1560             switch(ist->st->codec->codec_type) {
1561             case AVMEDIA_TYPE_AUDIO:{
1562                 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1563                     samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1564                     av_free(samples);
1565                     samples= av_malloc(samples_size);
1566                 }
1567                 decoded_data_size= samples_size;
1568                     /* XXX: could avoid copy if PCM 16 bits with same
1569                        endianness as CPU */
1570                 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1571                                             &avpkt);
1572                 if (ret < 0)
1573                     goto fail_decode;
1574                 avpkt.data += ret;
1575                 avpkt.size -= ret;
1576                 data_size   = ret;
1577                 /* Some bug in mpeg audio decoder gives */
1578                 /* decoded_data_size < 0, it seems they are overflows */
1579                 if (decoded_data_size <= 0) {
1580                     /* no audio frame */
1581                     continue;
1582                 }
1583                 decoded_data_buf = (uint8_t *)samples;
1584                 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1585                     (ist->st->codec->sample_rate * ist->st->codec->channels);
1586                 break;}
1587             case AVMEDIA_TYPE_VIDEO:
1588                     decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1589                     /* XXX: allocate picture correctly */
1590                     avcodec_get_frame_defaults(&picture);
1591
1592                     ret = avcodec_decode_video2(ist->st->codec,
1593                                                 &picture, &got_picture, &avpkt);
1594                     ist->st->quality= picture.quality;
1595                     if (ret < 0)
1596                         goto fail_decode;
1597                     if (!got_picture) {
1598                         /* no picture yet */
1599                         goto discard_packet;
1600                     }
1601                     if (ist->st->codec->time_base.num != 0) {
1602                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1603                         ist->next_pts += ((int64_t)AV_TIME_BASE *
1604                                           ist->st->codec->time_base.num * ticks) /
1605                             ist->st->codec->time_base.den;
1606                     }
1607                     avpkt.size = 0;
1608                     break;
1609             case AVMEDIA_TYPE_SUBTITLE:
1610                 ret = avcodec_decode_subtitle2(ist->st->codec,
1611                                                &subtitle, &got_picture, &avpkt);
1612                 if (ret < 0)
1613                     goto fail_decode;
1614                 if (!got_picture) {
1615                     goto discard_packet;
1616                 }
1617                 subtitle_to_free = &subtitle;
1618                 avpkt.size = 0;
1619                 break;
1620             default:
1621                 goto fail_decode;
1622             }
1623         } else {
1624             switch(ist->st->codec->codec_type) {
1625             case AVMEDIA_TYPE_AUDIO:
1626                 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1627                     ist->st->codec->sample_rate;
1628                 break;
1629             case AVMEDIA_TYPE_VIDEO:
1630                 if (ist->st->codec->time_base.num != 0) {
1631                     int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1632                     ist->next_pts += ((int64_t)AV_TIME_BASE *
1633                                       ist->st->codec->time_base.num * ticks) /
1634                         ist->st->codec->time_base.den;
1635                 }
1636                 break;
1637             }
1638             ret = avpkt.size;
1639             avpkt.size = 0;
1640         }
1641
1642         buffer_to_free = NULL;
1643         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1644             pre_process_video_frame(ist, (AVPicture *)&picture,
1645                                     &buffer_to_free);
1646         }
1647
1648 #if CONFIG_AVFILTER
1649         if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1650             // add it to be filtered
1651             av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1652                                      ist->pts,
1653                                      ist->st->codec->sample_aspect_ratio);
1654         }
1655 #endif
1656
1657         // preprocess audio (volume)
1658         if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1659             if (audio_volume != 256) {
1660                 short *volp;
1661                 volp = samples;
1662                 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1663                     int v = ((*volp) * audio_volume + 128) >> 8;
1664                     if (v < -32768) v = -32768;
1665                     if (v >  32767) v = 32767;
1666                     *volp++ = v;
1667                 }
1668             }
1669         }
1670
1671         /* frame rate emulation */
1672         if (rate_emu) {
1673             int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1674             int64_t now = av_gettime() - ist->start;
1675             if (pts > now)
1676                 usleep(pts - now);
1677         }
1678 #if CONFIG_AVFILTER
1679         frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1680             !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1681 #endif
1682         /* if output time reached then transcode raw format,
1683            encode packets and output them */
1684         if (start_time == 0 || ist->pts >= start_time)
1685 #if CONFIG_AVFILTER
1686         while (frame_available) {
1687             if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1688                 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1689 #endif
1690             for(i=0;i<nb_ostreams;i++) {
1691                 int frame_size;
1692
1693                 ost = ost_table[i];
1694                 if (ost->source_index == ist_index) {
1695                     os = output_files[ost->file_index];
1696
1697                     /* set the input output pts pairs */
1698                     //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1699
1700                     if (ost->encoding_needed) {
1701                         assert(ist->decoding_needed);
1702                         switch(ost->st->codec->codec_type) {
1703                         case AVMEDIA_TYPE_AUDIO:
1704                             do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1705                             break;
1706                         case AVMEDIA_TYPE_VIDEO:
1707 #if CONFIG_AVFILTER
1708                             ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1709 #endif
1710                             do_video_out(os, ost, ist, &picture, &frame_size);
1711                             if (vstats_filename && frame_size)
1712                                 do_video_stats(os, ost, frame_size);
1713                             break;
1714                         case AVMEDIA_TYPE_SUBTITLE:
1715                             do_subtitle_out(os, ost, ist, &subtitle,
1716                                             pkt->pts);
1717                             break;
1718                         default:
1719                             abort();
1720                         }
1721                     } else {
1722                         AVFrame avframe; //FIXME/XXX remove this
1723                         AVPacket opkt;
1724                         int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1725
1726                         av_init_packet(&opkt);
1727
1728                         if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1729                             continue;
1730
1731                         /* no reencoding needed : output the packet directly */
1732                         /* force the input stream PTS */
1733
1734                         avcodec_get_frame_defaults(&avframe);
1735                         ost->st->codec->coded_frame= &avframe;
1736                         avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1737
1738                         if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1739                             audio_size += data_size;
1740                         else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1741                             video_size += data_size;
1742                             ost->sync_opts++;
1743                         }
1744
1745                         opkt.stream_index= ost->index;
1746                         if(pkt->pts != AV_NOPTS_VALUE)
1747                             opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1748                         else
1749                             opkt.pts= AV_NOPTS_VALUE;
1750
1751                         if (pkt->dts == AV_NOPTS_VALUE)
1752                             opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1753                         else
1754                             opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1755                         opkt.dts -= ost_tb_start_time;
1756
1757                         opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1758                         opkt.flags= pkt->flags;
1759
1760                         //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1761                         if(   ost->st->codec->codec_id != CODEC_ID_H264
1762                            && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1763                            && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1764                            ) {
1765                             if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1766                                 opkt.destruct= av_destruct_packet;
1767                         } else {
1768                             opkt.data = data_buf;
1769                             opkt.size = data_size;
1770                         }
1771
1772                         write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1773                         ost->st->codec->frame_number++;
1774                         ost->frame_number++;
1775                         av_free_packet(&opkt);
1776                     }
1777                 }
1778 #if CONFIG_AVFILTER
1779                 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1780                         ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1781 #endif
1782             }
1783
1784 #if CONFIG_AVFILTER
1785             if(ist->picref)
1786                 avfilter_unref_pic(ist->picref);
1787         }
1788 #endif
1789         av_free(buffer_to_free);
1790         /* XXX: allocate the subtitles in the codec ? */
1791         if (subtitle_to_free) {
1792             if (subtitle_to_free->rects != NULL) {
1793                 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1794                     av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1795                     av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1796                     av_freep(&subtitle_to_free->rects[i]);
1797                 }
1798                 av_freep(&subtitle_to_free->rects);
1799             }
1800             subtitle_to_free->num_rects = 0;
1801             subtitle_to_free = NULL;
1802         }
1803     }
1804  discard_packet:
1805     if (pkt == NULL) {
1806         /* EOF handling */
1807
1808         for(i=0;i<nb_ostreams;i++) {
1809             ost = ost_table[i];
1810             if (ost->source_index == ist_index) {
1811                 AVCodecContext *enc= ost->st->codec;
1812                 os = output_files[ost->file_index];
1813
1814                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1815                     continue;
1816                 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1817                     continue;
1818
1819                 if (ost->encoding_needed) {
1820                     for(;;) {
1821                         AVPacket pkt;
1822                         int fifo_bytes;
1823                         av_init_packet(&pkt);
1824                         pkt.stream_index= ost->index;
1825
1826                         switch(ost->st->codec->codec_type) {
1827                         case AVMEDIA_TYPE_AUDIO:
1828                             fifo_bytes = av_fifo_size(ost->fifo);
1829                             ret = 0;
1830                             /* encode any samples remaining in fifo */
1831                             if (fifo_bytes > 0) {
1832                                 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1833                                 int fs_tmp = enc->frame_size;
1834
1835                                 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1836                                 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1837                                     enc->frame_size = fifo_bytes / (osize * enc->channels);
1838                                 } else { /* pad */
1839                                     int frame_bytes = enc->frame_size*osize*enc->channels;
1840                                     if (allocated_audio_buf_size < frame_bytes)
1841                                         av_exit(1);
1842                                     memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1843                                 }
1844
1845                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1846                                 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1847                                                           ost->st->time_base.num, enc->sample_rate);
1848                                 enc->frame_size = fs_tmp;
1849                             }
1850                             if(ret <= 0) {
1851                                 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1852                             }
1853                             if (ret < 0) {
1854                                 fprintf(stderr, "Audio encoding failed\n");
1855                                 av_exit(1);
1856                             }
1857                             audio_size += ret;
1858                             pkt.flags |= AV_PKT_FLAG_KEY;
1859                             break;
1860                         case AVMEDIA_TYPE_VIDEO:
1861                             ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1862                             if (ret < 0) {
1863                                 fprintf(stderr, "Video encoding failed\n");
1864                                 av_exit(1);
1865                             }
1866                             video_size += ret;
1867                             if(enc->coded_frame && enc->coded_frame->key_frame)
1868                                 pkt.flags |= AV_PKT_FLAG_KEY;
1869                             if (ost->logfile && enc->stats_out) {
1870                                 fprintf(ost->logfile, "%s", enc->stats_out);
1871                             }
1872                             break;
1873                         default:
1874                             ret=-1;
1875                         }
1876
1877                         if(ret<=0)
1878                             break;
1879                         pkt.data= bit_buffer;
1880                         pkt.size= ret;
1881                         if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1882                             pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1883                         write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1884                     }
1885                 }
1886             }
1887         }
1888     }
1889
1890     return 0;
1891  fail_decode:
1892     return -1;
1893 }
1894
1895 static void print_sdp(AVFormatContext **avc, int n)
1896 {
1897     char sdp[2048];
1898
1899     avf_sdp_create(avc, n, sdp, sizeof(sdp));
1900     printf("SDP:\n%s\n", sdp);
1901     fflush(stdout);
1902 }
1903
1904 static int copy_chapters(int infile, int outfile)
1905 {
1906     AVFormatContext *is = input_files[infile];
1907     AVFormatContext *os = output_files[outfile];
1908     int i;
1909
1910     for (i = 0; i < is->nb_chapters; i++) {
1911         AVChapter *in_ch = is->chapters[i], *out_ch;
1912         AVMetadataTag *t = NULL;
1913         int64_t ts_off   = av_rescale_q(start_time - input_files_ts_offset[infile],
1914                                       AV_TIME_BASE_Q, in_ch->time_base);
1915         int64_t rt       = (recording_time == INT64_MAX) ? INT64_MAX :
1916                            av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1917
1918
1919         if (in_ch->end < ts_off)
1920             continue;
1921         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1922             break;
1923
1924         out_ch = av_mallocz(sizeof(AVChapter));
1925         if (!out_ch)
1926             return AVERROR(ENOMEM);
1927
1928         out_ch->id        = in_ch->id;
1929         out_ch->time_base = in_ch->time_base;
1930         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
1931         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
1932
1933         while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1934             av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1935
1936         os->nb_chapters++;
1937         os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1938         if (!os->chapters)
1939             return AVERROR(ENOMEM);
1940         os->chapters[os->nb_chapters - 1] = out_ch;
1941     }
1942     return 0;
1943 }
1944
1945 /*
1946  * The following code is the main loop of the file converter
1947  */
1948 static int av_transcode(AVFormatContext **output_files,
1949                         int nb_output_files,
1950                         AVFormatContext **input_files,
1951                         int nb_input_files,
1952                         AVStreamMap *stream_maps, int nb_stream_maps)
1953 {
1954     int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1955     AVFormatContext *is, *os;
1956     AVCodecContext *codec, *icodec;
1957     AVOutputStream *ost, **ost_table = NULL;
1958     AVInputStream *ist, **ist_table = NULL;
1959     AVInputFile *file_table;
1960     char error[1024];
1961     int key;
1962     int want_sdp = 1;
1963     uint8_t no_packet[MAX_FILES]={0};
1964     int no_packet_count=0;
1965
1966     file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1967     if (!file_table)
1968         goto fail;
1969
1970     /* input stream init */
1971     j = 0;
1972     for(i=0;i<nb_input_files;i++) {
1973         is = input_files[i];
1974         file_table[i].ist_index = j;
1975         file_table[i].nb_streams = is->nb_streams;
1976         j += is->nb_streams;
1977     }
1978     nb_istreams = j;
1979
1980     ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1981     if (!ist_table)
1982         goto fail;
1983
1984     for(i=0;i<nb_istreams;i++) {
1985         ist = av_mallocz(sizeof(AVInputStream));
1986         if (!ist)
1987             goto fail;
1988         ist_table[i] = ist;
1989     }
1990     j = 0;
1991     for(i=0;i<nb_input_files;i++) {
1992         is = input_files[i];
1993         for(k=0;k<is->nb_streams;k++) {
1994             ist = ist_table[j++];
1995             ist->st = is->streams[k];
1996             ist->file_index = i;
1997             ist->index = k;
1998             ist->discard = 1; /* the stream is discarded by default
1999                                  (changed later) */
2000
2001             if (rate_emu) {
2002                 ist->start = av_gettime();
2003             }
2004         }
2005     }
2006
2007     /* output stream init */
2008     nb_ostreams = 0;
2009     for(i=0;i<nb_output_files;i++) {
2010         os = output_files[i];
2011         if (!os->nb_streams) {
2012             dump_format(output_files[i], i, output_files[i]->filename, 1);
2013             fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2014             av_exit(1);
2015         }
2016         nb_ostreams += os->nb_streams;
2017     }
2018     if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2019         fprintf(stderr, "Number of stream maps must match number of output streams\n");
2020         av_exit(1);
2021     }
2022
2023     /* Sanity check the mapping args -- do the input files & streams exist? */
2024     for(i=0;i<nb_stream_maps;i++) {
2025         int fi = stream_maps[i].file_index;
2026         int si = stream_maps[i].stream_index;
2027
2028         if (fi < 0 || fi > nb_input_files - 1 ||
2029             si < 0 || si > file_table[fi].nb_streams - 1) {
2030             fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2031             av_exit(1);
2032         }
2033         fi = stream_maps[i].sync_file_index;
2034         si = stream_maps[i].sync_stream_index;
2035         if (fi < 0 || fi > nb_input_files - 1 ||
2036             si < 0 || si > file_table[fi].nb_streams - 1) {
2037             fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2038             av_exit(1);
2039         }
2040     }
2041
2042     ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2043     if (!ost_table)
2044         goto fail;
2045     for(i=0;i<nb_ostreams;i++) {
2046         ost = av_mallocz(sizeof(AVOutputStream));
2047         if (!ost)
2048             goto fail;
2049         ost_table[i] = ost;
2050     }
2051
2052     n = 0;
2053     for(k=0;k<nb_output_files;k++) {
2054         os = output_files[k];
2055         for(i=0;i<os->nb_streams;i++,n++) {
2056             int found;
2057             ost = ost_table[n];
2058             ost->file_index = k;
2059             ost->index = i;
2060             ost->st = os->streams[i];
2061             if (nb_stream_maps > 0) {
2062                 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2063                     stream_maps[n].stream_index;
2064
2065                 /* Sanity check that the stream types match */
2066                 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2067                     int i= ost->file_index;
2068                     dump_format(output_files[i], i, output_files[i]->filename, 1);
2069                     fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2070                         stream_maps[n].file_index, stream_maps[n].stream_index,
2071                         ost->file_index, ost->index);
2072                     av_exit(1);
2073                 }
2074
2075             } else {
2076                 int best_nb_frames=-1;
2077                     /* get corresponding input stream index : we select the first one with the right type */
2078                     found = 0;
2079                     for(j=0;j<nb_istreams;j++) {
2080                         int skip=0;
2081                         ist = ist_table[j];
2082                         if(opt_programid){
2083                             int pi,si;
2084                             AVFormatContext *f= input_files[ ist->file_index ];
2085                             skip=1;
2086                             for(pi=0; pi<f->nb_programs; pi++){
2087                                 AVProgram *p= f->programs[pi];
2088                                 if(p->id == opt_programid)
2089                                     for(si=0; si<p->nb_stream_indexes; si++){
2090                                         if(f->streams[ p->stream_index[si] ] == ist->st)
2091                                             skip=0;
2092                                     }
2093                             }
2094                         }
2095                         if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2096                             ist->st->codec->codec_type == ost->st->codec->codec_type) {
2097                             if(best_nb_frames < ist->st->codec_info_nb_frames){
2098                                 best_nb_frames= ist->st->codec_info_nb_frames;
2099                                 ost->source_index = j;
2100                                 found = 1;
2101                             }
2102                         }
2103                     }
2104
2105                 if (!found) {
2106                     if(! opt_programid) {
2107                         /* try again and reuse existing stream */
2108                         for(j=0;j<nb_istreams;j++) {
2109                             ist = ist_table[j];
2110                             if (   ist->st->codec->codec_type == ost->st->codec->codec_type
2111                                 && ist->st->discard != AVDISCARD_ALL) {
2112                                 ost->source_index = j;
2113                                 found = 1;
2114                             }
2115                         }
2116                     }
2117                     if (!found) {
2118                         int i= ost->file_index;
2119                         dump_format(output_files[i], i, output_files[i]->filename, 1);
2120                         fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2121                                 ost->file_index, ost->index);
2122                         av_exit(1);
2123                     }
2124                 }
2125             }
2126             ist = ist_table[ost->source_index];
2127             ist->discard = 0;
2128             ost->sync_ist = (nb_stream_maps > 0) ?
2129                 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2130                          stream_maps[n].sync_stream_index] : ist;
2131         }
2132     }
2133
2134     /* for each output stream, we compute the right encoding parameters */
2135     for(i=0;i<nb_ostreams;i++) {
2136         AVMetadataTag *t = NULL;
2137         ost = ost_table[i];
2138         os = output_files[ost->file_index];
2139         ist = ist_table[ost->source_index];
2140
2141         codec = ost->st->codec;
2142         icodec = ist->st->codec;
2143
2144         while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2145             av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2146         }
2147
2148         ost->st->disposition = ist->st->disposition;
2149         codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2150         codec->chroma_sample_location = icodec->chroma_sample_location;
2151
2152         if (ost->st->stream_copy) {
2153             uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2154
2155             if (extra_size > INT_MAX)
2156                 goto fail;
2157
2158             /* if stream_copy is selected, no need to decode or encode */
2159             codec->codec_id = icodec->codec_id;
2160             codec->codec_type = icodec->codec_type;
2161
2162             if(!codec->codec_tag){
2163                 if(   !os->oformat->codec_tag
2164                    || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2165                    || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2166                     codec->codec_tag = icodec->codec_tag;
2167             }
2168
2169             codec->bit_rate = icodec->bit_rate;
2170             codec->extradata= av_mallocz(extra_size);
2171             if (!codec->extradata)
2172                 goto fail;
2173             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2174             codec->extradata_size= icodec->extradata_size;
2175             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){
2176                 codec->time_base = icodec->time_base;
2177                 codec->time_base.num *= icodec->ticks_per_frame;
2178             }else
2179                 codec->time_base = ist->st->time_base;
2180             switch(codec->codec_type) {
2181             case AVMEDIA_TYPE_AUDIO:
2182                 if(audio_volume != 256) {
2183                     fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2184                     av_exit(1);
2185                 }
2186                 codec->channel_layout = icodec->channel_layout;
2187                 codec->sample_rate = icodec->sample_rate;
2188                 codec->channels = icodec->channels;
2189                 codec->frame_size = icodec->frame_size;
2190                 codec->block_align= icodec->block_align;
2191                 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2192                     codec->block_align= 0;
2193                 if(codec->codec_id == CODEC_ID_AC3)
2194                     codec->block_align= 0;
2195                 break;
2196             case AVMEDIA_TYPE_VIDEO:
2197                 codec->pix_fmt = icodec->pix_fmt;
2198                 codec->width = icodec->width;
2199                 codec->height = icodec->height;
2200                 codec->has_b_frames = icodec->has_b_frames;
2201                 break;
2202             case AVMEDIA_TYPE_SUBTITLE:
2203                 codec->width = icodec->width;
2204                 codec->height = icodec->height;
2205                 break;
2206             default:
2207                 abort();
2208             }
2209         } else {
2210             switch(codec->codec_type) {
2211             case AVMEDIA_TYPE_AUDIO:
2212                 ost->fifo= av_fifo_alloc(1024);
2213                 if(!ost->fifo)
2214                     goto fail;
2215                 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2216                 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2217                 icodec->request_channels = codec->channels;
2218                 ist->decoding_needed = 1;
2219                 ost->encoding_needed = 1;
2220                 break;
2221             case AVMEDIA_TYPE_VIDEO:
2222                 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2223                     fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2224                     av_exit(1);
2225                 }
2226                 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2227                 ost->video_resample = ((codec->width != icodec->width -
2228                                 (frame_leftBand + frame_rightBand)) ||
2229                         (codec->height != icodec->height -
2230                                 (frame_topBand  + frame_bottomBand)) ||
2231                         (codec->pix_fmt != icodec->pix_fmt));
2232                 if (ost->video_crop) {
2233                     ost->topBand    = ost->original_topBand    = frame_topBand;
2234                     ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2235                     ost->leftBand   = ost->original_leftBand   = frame_leftBand;
2236                     ost->rightBand  = ost->original_rightBand  = frame_rightBand;
2237                 }
2238                 if (ost->video_resample) {
2239                     avcodec_get_frame_defaults(&ost->pict_tmp);
2240                     if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2241                                          codec->width, codec->height)) {
2242                         fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2243                         av_exit(1);
2244                     }
2245                     sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2246                     ost->img_resample_ctx = sws_getContext(
2247                             icodec->width - (frame_leftBand + frame_rightBand),
2248                             icodec->height - (frame_topBand + frame_bottomBand),
2249                             icodec->pix_fmt,
2250                             codec->width,
2251                             codec->height,
2252                             codec->pix_fmt,
2253                             sws_flags, NULL, NULL, NULL);
2254                     if (ost->img_resample_ctx == NULL) {
2255                         fprintf(stderr, "Cannot get resampling context\n");
2256                         av_exit(1);
2257                     }
2258
2259 #if !CONFIG_AVFILTER
2260                     ost->original_height = icodec->height;
2261                     ost->original_width  = icodec->width;
2262 #endif
2263                     codec->bits_per_raw_sample= 0;
2264                 }
2265                 ost->resample_height = icodec->height - (frame_topBand  + frame_bottomBand);
2266                 ost->resample_width  = icodec->width  - (frame_leftBand + frame_rightBand);
2267                 ost->resample_pix_fmt= icodec->pix_fmt;
2268                 ost->encoding_needed = 1;
2269                 ist->decoding_needed = 1;
2270
2271 #if CONFIG_AVFILTER
2272                 if (configure_filters(ist, ost)) {
2273                     fprintf(stderr, "Error opening filters!\n");
2274                     exit(1);
2275                 }
2276 #endif
2277                 break;
2278             case AVMEDIA_TYPE_SUBTITLE:
2279                 ost->encoding_needed = 1;
2280                 ist->decoding_needed = 1;
2281                 break;
2282             default:
2283                 abort();
2284                 break;
2285             }
2286             /* two pass mode */
2287             if (ost->encoding_needed &&
2288                 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2289                 char logfilename[1024];
2290                 FILE *f;
2291
2292                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2293                          pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2294                          i);
2295                 if (codec->flags & CODEC_FLAG_PASS1) {
2296                     f = fopen(logfilename, "wb");
2297                     if (!f) {
2298                         fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2299                         av_exit(1);
2300                     }
2301                     ost->logfile = f;
2302                 } else {
2303                     char  *logbuffer;
2304                     size_t logbuffer_size;
2305                     if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2306                         fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2307                         av_exit(1);
2308                     }
2309                     codec->stats_in = logbuffer;
2310                 }
2311             }
2312         }
2313         if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2314             int size= codec->width * codec->height;
2315             bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2316         }
2317     }
2318
2319     if (!bit_buffer)
2320         bit_buffer = av_malloc(bit_buffer_size);
2321     if (!bit_buffer) {
2322         fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2323                 bit_buffer_size);
2324         ret = AVERROR(ENOMEM);
2325         goto fail;
2326     }
2327
2328     /* open each encoder */
2329     for(i=0;i<nb_ostreams;i++) {
2330         ost = ost_table[i];
2331         if (ost->encoding_needed) {
2332             AVCodec *codec = output_codecs[i];
2333             if (!codec)
2334                 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2335             if (!codec) {
2336                 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2337                          ost->st->codec->codec_id, ost->file_index, ost->index);
2338                 ret = AVERROR(EINVAL);
2339                 goto dump_format;
2340             }
2341             if (avcodec_open(ost->st->codec, codec) < 0) {
2342                 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2343                         ost->file_index, ost->index);
2344                 ret = AVERROR(EINVAL);
2345                 goto dump_format;
2346             }
2347             extra_size += ost->st->codec->extradata_size;
2348         }
2349     }
2350
2351     /* open each decoder */
2352     for(i=0;i<nb_istreams;i++) {
2353         ist = ist_table[i];
2354         if (ist->decoding_needed) {
2355             AVCodec *codec = input_codecs[i];
2356             if (!codec)
2357                 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2358             if (!codec) {
2359                 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2360                         ist->st->codec->codec_id, ist->file_index, ist->index);
2361                 ret = AVERROR(EINVAL);
2362                 goto dump_format;
2363             }
2364             if (avcodec_open(ist->st->codec, codec) < 0) {
2365                 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2366                         ist->file_index, ist->index);
2367                 ret = AVERROR(EINVAL);
2368                 goto dump_format;
2369             }
2370             //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2371             //    ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2372         }
2373     }
2374
2375     /* init pts */
2376     for(i=0;i<nb_istreams;i++) {
2377         AVStream *st;
2378         ist = ist_table[i];
2379         st= ist->st;
2380         ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2381         ist->next_pts = AV_NOPTS_VALUE;
2382         ist->is_start = 1;
2383     }
2384
2385     /* set meta data information from input file if required */
2386     for (i=0;i<nb_meta_data_maps;i++) {
2387         AVFormatContext *out_file;
2388         AVFormatContext *in_file;
2389         AVMetadataTag *mtag;
2390
2391         int out_file_index = meta_data_maps[i].out_file;
2392         int in_file_index = meta_data_maps[i].in_file;
2393         if (out_file_index < 0 || out_file_index >= nb_output_files) {
2394             snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2395                      out_file_index, out_file_index, in_file_index);
2396             ret = AVERROR(EINVAL);
2397             goto dump_format;
2398         }
2399         if (in_file_index < 0 || in_file_index >= nb_input_files) {
2400             snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2401                      in_file_index, out_file_index, in_file_index);
2402             ret = AVERROR(EINVAL);
2403             goto dump_format;
2404         }
2405
2406         out_file = output_files[out_file_index];
2407         in_file = input_files[in_file_index];
2408
2409
2410         mtag=NULL;
2411         while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2412             av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2413         av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2414                                     in_file->iformat->metadata_conv);
2415     }
2416
2417     /* copy chapters from the first input file that has them*/
2418     for (i = 0; i < nb_input_files; i++) {
2419         if (!input_files[i]->nb_chapters)
2420             continue;
2421
2422         for (j = 0; j < nb_output_files; j++)
2423             if ((ret = copy_chapters(i, j)) < 0)
2424                 goto dump_format;
2425     }
2426
2427     /* open files and write file headers */
2428     for(i=0;i<nb_output_files;i++) {
2429         os = output_files[i];
2430         if (av_write_header(os) < 0) {
2431             snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2432             ret = AVERROR(EINVAL);
2433             goto dump_format;
2434         }
2435         if (strcmp(output_files[i]->oformat->name, "rtp")) {
2436             want_sdp = 0;
2437         }
2438     }
2439
2440  dump_format:
2441     /* dump the file output parameters - cannot be done before in case
2442        of stream copy */
2443     for(i=0;i<nb_output_files;i++) {
2444         dump_format(output_files[i], i, output_files[i]->filename, 1);
2445     }
2446
2447     /* dump the stream mapping */
2448     if (verbose >= 0) {
2449         fprintf(stderr, "Stream mapping:\n");
2450         for(i=0;i<nb_ostreams;i++) {
2451             ost = ost_table[i];
2452             fprintf(stderr, "  Stream #%d.%d -> #%d.%d",
2453                     ist_table[ost->source_index]->file_index,
2454                     ist_table[ost->source_index]->index,
2455                     ost->file_index,
2456                     ost->index);
2457             if (ost->sync_ist != ist_table[ost->source_index])
2458                 fprintf(stderr, " [sync #%d.%d]",
2459                         ost->sync_ist->file_index,
2460                         ost->sync_ist->index);
2461             fprintf(stderr, "\n");
2462         }
2463     }
2464
2465     if (ret) {
2466         fprintf(stderr, "%s\n", error);
2467         goto fail;
2468     }
2469
2470     if (want_sdp) {
2471         print_sdp(output_files, nb_output_files);
2472     }
2473
2474     if (!using_stdin && verbose >= 0) {
2475         fprintf(stderr, "Press [q] to stop encoding\n");
2476         url_set_interrupt_cb(decode_interrupt_cb);
2477     }
2478     term_init();
2479
2480     timer_start = av_gettime();
2481
2482     for(; received_sigterm == 0;) {
2483         int file_index, ist_index;
2484         AVPacket pkt;
2485         double ipts_min;
2486         double opts_min;
2487
2488     redo:
2489         ipts_min= 1e100;
2490         opts_min= 1e100;
2491         /* if 'q' pressed, exits */
2492         if (!using_stdin) {
2493             if (q_pressed)
2494                 break;
2495             /* read_key() returns 0 on EOF */
2496             key = read_key();
2497             if (key == 'q')
2498                 break;
2499         }
2500
2501         /* select the stream that we must read now by looking at the
2502            smallest output pts */
2503         file_index = -1;
2504         for(i=0;i<nb_ostreams;i++) {
2505             double ipts, opts;
2506             ost = ost_table[i];
2507             os = output_files[ost->file_index];
2508             ist = ist_table[ost->source_index];
2509             if(ist->is_past_recording_time || no_packet[ist->file_index])
2510                 continue;
2511                 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2512             ipts = (double)ist->pts;
2513             if (!file_table[ist->file_index].eof_reached){
2514                 if(ipts < ipts_min) {
2515                     ipts_min = ipts;
2516                     if(input_sync ) file_index = ist->file_index;
2517                 }
2518                 if(opts < opts_min) {
2519                     opts_min = opts;
2520                     if(!input_sync) file_index = ist->file_index;
2521                 }
2522             }
2523             if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2524                 file_index= -1;
2525                 break;
2526             }
2527         }
2528         /* if none, if is finished */
2529         if (file_index < 0) {
2530             if(no_packet_count){
2531                 no_packet_count=0;
2532                 memset(no_packet, 0, sizeof(no_packet));
2533                 usleep(10000);
2534                 continue;
2535             }
2536             break;
2537         }
2538
2539         /* finish if limit size exhausted */
2540         if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2541             break;
2542
2543         /* read a frame from it and output it in the fifo */
2544         is = input_files[file_index];
2545         ret= av_read_frame(is, &pkt);
2546         if(ret == AVERROR(EAGAIN)){
2547             no_packet[file_index]=1;
2548             no_packet_count++;
2549             continue;
2550         }
2551         if (ret < 0) {
2552             file_table[file_index].eof_reached = 1;
2553             if (opt_shortest)
2554                 break;
2555             else
2556                 continue;
2557         }
2558
2559         no_packet_count=0;
2560         memset(no_packet, 0, sizeof(no_packet));
2561
2562         if (do_pkt_dump) {
2563             av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2564         }
2565         /* the following test is needed in case new streams appear
2566            dynamically in stream : we ignore them */
2567         if (pkt.stream_index >= file_table[file_index].nb_streams)
2568             goto discard_packet;
2569         ist_index = file_table[file_index].ist_index + pkt.stream_index;
2570         ist = ist_table[ist_index];
2571         if (ist->discard)
2572             goto discard_packet;
2573
2574         if (pkt.dts != AV_NOPTS_VALUE)
2575             pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2576         if (pkt.pts != AV_NOPTS_VALUE)
2577             pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2578
2579         if(input_files_ts_scale[file_index][pkt.stream_index]){
2580             if(pkt.pts != AV_NOPTS_VALUE)
2581                 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2582             if(pkt.dts != AV_NOPTS_VALUE)
2583                 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2584         }
2585
2586 //        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);
2587         if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2588             && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2589             int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2590             int64_t delta= pkt_dts - ist->next_pts;
2591             if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2592                 input_files_ts_offset[ist->file_index]-= delta;
2593                 if (verbose > 2)
2594                     fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2595                 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2596                 if(pkt.pts != AV_NOPTS_VALUE)
2597                     pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2598             }
2599         }
2600
2601         /* finish if recording time exhausted */
2602         if (recording_time != INT64_MAX &&
2603             av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2604             ist->is_past_recording_time = 1;
2605             goto discard_packet;
2606         }
2607
2608         //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2609         if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2610
2611             if (verbose >= 0)
2612                 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2613                         ist->file_index, ist->index);
2614             if (exit_on_error)
2615                 av_exit(1);
2616             av_free_packet(&pkt);
2617             goto redo;
2618         }
2619
2620     discard_packet:
2621         av_free_packet(&pkt);
2622
2623         /* dump report by using the output first video and audio streams */
2624         print_report(output_files, ost_table, nb_ostreams, 0);
2625     }
2626
2627     /* at the end of stream, we must flush the decoder buffers */
2628     for(i=0;i<nb_istreams;i++) {
2629         ist = ist_table[i];
2630         if (ist->decoding_needed) {
2631             output_packet(ist, i, ost_table, nb_ostreams, NULL);
2632         }
2633     }
2634
2635     term_exit();
2636
2637     /* write the trailer if needed and close file */
2638     for(i=0;i<nb_output_files;i++) {
2639         os = output_files[i];
2640         av_write_trailer(os);
2641     }
2642
2643     /* dump report by using the first video and audio streams */
2644     print_report(output_files, ost_table, nb_ostreams, 1);
2645
2646     /* close each encoder */
2647     for(i=0;i<nb_ostreams;i++) {
2648         ost = ost_table[i];
2649         if (ost->encoding_needed) {
2650             av_freep(&ost->st->codec->stats_in);
2651             avcodec_close(ost->st->codec);
2652         }
2653     }
2654
2655     /* close each decoder */
2656     for(i=0;i<nb_istreams;i++) {
2657         ist = ist_table[i];
2658         if (ist->decoding_needed) {
2659             avcodec_close(ist->st->codec);
2660         }
2661     }
2662 #if CONFIG_AVFILTER
2663     if (graph) {
2664         avfilter_graph_destroy(graph);
2665         av_freep(&graph);
2666     }
2667 #endif
2668
2669     /* finished ! */
2670     ret = 0;
2671
2672  fail:
2673     av_freep(&bit_buffer);
2674     av_free(file_table);
2675
2676     if (ist_table) {
2677         for(i=0;i<nb_istreams;i++) {
2678             ist = ist_table[i];
2679             av_free(ist);
2680         }
2681         av_free(ist_table);
2682     }
2683     if (ost_table) {
2684         for(i=0;i<nb_ostreams;i++) {
2685             ost = ost_table[i];
2686             if (ost) {
2687                 if (ost->st->stream_copy)
2688                     av_freep(&ost->st->codec->extradata);
2689                 if (ost->logfile) {
2690                     fclose(ost->logfile);
2691                     ost->logfile = NULL;
2692                 }
2693                 av_fifo_free(ost->fifo); /* works even if fifo is not
2694                                              initialized but set to zero */
2695                 av_free(ost->pict_tmp.data[0]);
2696                 if (ost->video_resample)
2697                     sws_freeContext(ost->img_resample_ctx);
2698                 if (ost->resample)
2699                     audio_resample_close(ost->resample);
2700                 if (ost->reformat_ctx)
2701                     av_audio_convert_free(ost->reformat_ctx);
2702                 av_free(ost);
2703             }
2704         }
2705         av_free(ost_table);
2706     }
2707     return ret;
2708 }
2709
2710 static void opt_format(const char *arg)
2711 {
2712     /* compatibility stuff for pgmyuv */
2713     if (!strcmp(arg, "pgmyuv")) {
2714         pgmyuv_compatibility_hack=1;
2715 //        opt_image_format(arg);
2716         arg = "image2";
2717         fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2718     }
2719
2720     last_asked_format = arg;
2721 }
2722
2723 static void opt_video_rc_override_string(const char *arg)
2724 {
2725     video_rc_override_string = arg;
2726 }
2727
2728 static int opt_me_threshold(const char *opt, const char *arg)
2729 {
2730     me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2731     return 0;
2732 }
2733
2734 static int opt_verbose(const char *opt, const char *arg)
2735 {
2736     verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2737     return 0;
2738 }
2739
2740 static int opt_frame_rate(const char *opt, const char *arg)
2741 {
2742     if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2743         fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2744         av_exit(1);
2745     }
2746     return 0;
2747 }
2748
2749 static int opt_bitrate(const char *opt, const char *arg)
2750 {
2751     int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2752
2753     opt_default(opt, arg);
2754
2755     if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2756         fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2757
2758     return 0;
2759 }
2760
2761 static void opt_frame_crop_top(const char *arg)
2762 {
2763     frame_topBand = atoi(arg);
2764     if (frame_topBand < 0) {
2765         fprintf(stderr, "Incorrect top crop size\n");
2766         av_exit(1);
2767     }
2768     if ((frame_topBand) >= frame_height){
2769         fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2770         av_exit(1);
2771     }
2772     fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
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     fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2788     frame_height -= frame_bottomBand;
2789 }
2790
2791 static void opt_frame_crop_left(const char *arg)
2792 {
2793     frame_leftBand = atoi(arg);
2794     if (frame_leftBand < 0) {
2795         fprintf(stderr, "Incorrect left crop size\n");
2796         av_exit(1);
2797     }
2798     if ((frame_leftBand) >= frame_width){
2799         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2800         av_exit(1);
2801     }
2802     fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2803     frame_width -= frame_leftBand;
2804 }
2805
2806 static void opt_frame_crop_right(const char *arg)
2807 {
2808     frame_rightBand = atoi(arg);
2809     if (frame_rightBand < 0) {
2810         fprintf(stderr, "Incorrect right crop size\n");
2811         av_exit(1);
2812     }
2813     if ((frame_rightBand) >= frame_width){
2814         fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2815         av_exit(1);
2816     }
2817     fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2818     frame_width -= frame_rightBand;
2819 }
2820
2821 static void opt_frame_size(const char *arg)
2822 {
2823     if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2824         fprintf(stderr, "Incorrect frame size\n");
2825         av_exit(1);
2826     }
2827 }
2828
2829 static void opt_pad(const char *arg) {
2830     fprintf(stderr, "Please use vf=pad\n");
2831     av_exit(1);
2832 }
2833
2834 static void opt_frame_pix_fmt(const char *arg)
2835 {
2836     if (strcmp(arg, "list")) {
2837         frame_pix_fmt = av_get_pix_fmt(arg);
2838         if (frame_pix_fmt == PIX_FMT_NONE) {
2839             fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2840             av_exit(1);
2841         }
2842     } else {
2843         show_pix_fmts();
2844         av_exit(0);
2845     }
2846 }
2847
2848 static void opt_frame_aspect_ratio(const char *arg)
2849 {
2850     int x = 0, y = 0;
2851     double ar = 0;
2852     const char *p;
2853     char *end;
2854
2855     p = strchr(arg, ':');
2856     if (p) {
2857         x = strtol(arg, &end, 10);
2858         if (end == p)
2859             y = strtol(end+1, &end, 10);
2860         if (x > 0 && y > 0)
2861             ar = (double)x / (double)y;
2862     } else
2863         ar = strtod(arg, NULL);
2864
2865     if (!ar) {
2866         fprintf(stderr, "Incorrect aspect ratio specification.\n");
2867         av_exit(1);
2868     }
2869     frame_aspect_ratio = ar;
2870 }
2871
2872 static int opt_metadata(const char *opt, const char *arg)
2873 {
2874     char *mid= strchr(arg, '=');
2875
2876     if(!mid){
2877         fprintf(stderr, "Missing =\n");
2878         av_exit(1);
2879     }
2880     *mid++= 0;
2881
2882     metadata_count++;
2883     metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2884     metadata[metadata_count-1].key  = av_strdup(arg);
2885     metadata[metadata_count-1].value= av_strdup(mid);
2886
2887     return 0;
2888 }
2889
2890 static void opt_qscale(const char *arg)
2891 {
2892     video_qscale = atof(arg);
2893     if (video_qscale <= 0 ||
2894         video_qscale > 255) {
2895         fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2896         av_exit(1);
2897     }
2898 }
2899
2900 static void opt_top_field_first(const char *arg)
2901 {
2902     top_field_first= atoi(arg);
2903 }
2904
2905 static int opt_thread_count(const char *opt, const char *arg)
2906 {
2907     thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2908 #if !HAVE_THREADS
2909     if (verbose >= 0)
2910         fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2911 #endif
2912     return 0;
2913 }
2914
2915 static void opt_audio_sample_fmt(const char *arg)
2916 {
2917     if (strcmp(arg, "list"))
2918         audio_sample_fmt = avcodec_get_sample_fmt(arg);
2919     else {
2920         list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2921         av_exit(0);
2922     }
2923 }
2924
2925 static int opt_audio_rate(const char *opt, const char *arg)
2926 {
2927     audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2928     return 0;
2929 }
2930
2931 static int opt_audio_channels(const char *opt, const char *arg)
2932 {
2933     audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2934     return 0;
2935 }
2936
2937 static void opt_video_channel(const char *arg)
2938 {
2939     video_channel = strtol(arg, NULL, 0);
2940 }
2941
2942 static void opt_video_standard(const char *arg)
2943 {
2944     video_standard = av_strdup(arg);
2945 }
2946
2947 static void opt_codec(int *pstream_copy, char **pcodec_name,
2948                       int codec_type, const char *arg)
2949 {
2950     av_freep(pcodec_name);
2951     if (!strcmp(arg, "copy")) {
2952         *pstream_copy = 1;
2953     } else {
2954         *pcodec_name = av_strdup(arg);
2955     }
2956 }
2957
2958 static void opt_audio_codec(const char *arg)
2959 {
2960     opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2961 }
2962
2963 static void opt_audio_tag(const char *arg)
2964 {
2965     char *tail;
2966     audio_codec_tag= strtol(arg, &tail, 0);
2967
2968     if(!tail || *tail)
2969         audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2970 }
2971
2972 static void opt_video_tag(const char *arg)
2973 {
2974     char *tail;
2975     video_codec_tag= strtol(arg, &tail, 0);
2976
2977     if(!tail || *tail)
2978         video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2979 }
2980
2981 static void opt_video_codec(const char *arg)
2982 {
2983     opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2984 }
2985
2986 static void opt_subtitle_codec(const char *arg)
2987 {
2988     opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2989 }
2990
2991 static void opt_subtitle_tag(const char *arg)
2992 {
2993     char *tail;
2994     subtitle_codec_tag= strtol(arg, &tail, 0);
2995
2996     if(!tail || *tail)
2997         subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2998 }
2999
3000 static void opt_map(const char *arg)
3001 {
3002     AVStreamMap *m;
3003     char *p;
3004
3005     m = &stream_maps[nb_stream_maps++];
3006
3007     m->file_index = strtol(arg, &p, 0);
3008     if (*p)
3009         p++;
3010
3011     m->stream_index = strtol(p, &p, 0);
3012     if (*p) {
3013         p++;
3014         m->sync_file_index = strtol(p, &p, 0);
3015         if (*p)
3016             p++;
3017         m->sync_stream_index = strtol(p, &p, 0);
3018     } else {
3019         m->sync_file_index = m->file_index;
3020         m->sync_stream_index = m->stream_index;
3021     }
3022 }
3023
3024 static void opt_map_meta_data(const char *arg)
3025 {
3026     AVMetaDataMap *m;
3027     char *p;
3028
3029     m = &meta_data_maps[nb_meta_data_maps++];
3030
3031     m->out_file = strtol(arg, &p, 0);
3032     if (*p)
3033         p++;
3034
3035     m->in_file = strtol(p, &p, 0);
3036 }
3037
3038 static void opt_input_ts_scale(const char *arg)
3039 {
3040     unsigned int stream;
3041     double scale;
3042     char *p;
3043
3044     stream = strtol(arg, &p, 0);
3045     if (*p)
3046         p++;
3047     scale= strtod(p, &p);
3048
3049     if(stream >= MAX_STREAMS)
3050         av_exit(1);
3051
3052     input_files_ts_scale[nb_input_files][stream]= scale;
3053 }
3054
3055 static int opt_recording_time(const char *opt, const char *arg)
3056 {
3057     recording_time = parse_time_or_die(opt, arg, 1);
3058     return 0;
3059 }
3060
3061 static int opt_start_time(const char *opt, const char *arg)
3062 {
3063     start_time = parse_time_or_die(opt, arg, 1);
3064     return 0;
3065 }
3066
3067 static int opt_recording_timestamp(const char *opt, const char *arg)
3068 {
3069     recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3070     return 0;
3071 }
3072
3073 static int opt_input_ts_offset(const char *opt, const char *arg)
3074 {
3075     input_ts_offset = parse_time_or_die(opt, arg, 1);
3076     return 0;
3077 }
3078
3079 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3080 {
3081     const char *codec_string = encoder ? "encoder" : "decoder";
3082     AVCodec *codec;
3083
3084     if(!name)
3085         return CODEC_ID_NONE;
3086     codec = encoder ?
3087         avcodec_find_encoder_by_name(name) :
3088         avcodec_find_decoder_by_name(name);
3089     if(!codec) {
3090         fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3091         av_exit(1);
3092     }
3093     if(codec->type != type) {
3094         fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3095         av_exit(1);
3096     }
3097     if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3098        strict > FF_COMPLIANCE_EXPERIMENTAL) {
3099         fprintf(stderr, "%s '%s' is experimental and might produce bad "
3100                 "results.\nAdd '-strict experimental' if you want to use it.\n",
3101                 codec_string, codec->name);
3102         codec = encoder ?
3103             avcodec_find_encoder(codec->id) :
3104             avcodec_find_decoder(codec->id);
3105         if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3106             fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3107                     codec_string, codec->name);
3108         av_exit(1);
3109     }
3110     return codec->id;
3111 }
3112
3113 static void opt_input_file(const char *filename)
3114 {
3115     AVFormatContext *ic;
3116     AVFormatParameters params, *ap = &params;
3117     AVInputFormat *file_iformat = NULL;
3118     int err, i, ret, rfps, rfps_base;
3119     int64_t timestamp;
3120
3121     if (last_asked_format) {
3122         if (!(file_iformat = av_find_input_format(last_asked_format))) {
3123             fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3124             av_exit(1);
3125         }
3126         last_asked_format = NULL;
3127     }
3128
3129     if (!strcmp(filename, "-"))
3130         filename = "pipe:";
3131
3132     using_stdin |= !strncmp(filename, "pipe:", 5) ||
3133                     !strcmp(filename, "/dev/stdin");
3134
3135     /* get default parameters from command line */
3136     ic = avformat_alloc_context();
3137     if (!ic) {
3138         print_error(filename, AVERROR(ENOMEM));
3139         av_exit(1);
3140     }
3141
3142     memset(ap, 0, sizeof(*ap));
3143     ap->prealloced_context = 1;
3144     ap->sample_rate = audio_sample_rate;
3145     ap->channels = audio_channels;
3146     ap->time_base.den = frame_rate.num;
3147     ap->time_base.num = frame_rate.den;
3148     ap->width = frame_width;
3149     ap->height = frame_height;
3150     ap->pix_fmt = frame_pix_fmt;
3151    // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3152     ap->channel = video_channel;
3153     ap->standard = video_standard;
3154
3155     set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3156
3157     ic->video_codec_id   =
3158         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0,
3159                           avcodec_opts[AVMEDIA_TYPE_VIDEO   ]->strict_std_compliance);
3160     ic->audio_codec_id   =
3161         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0,
3162                           avcodec_opts[AVMEDIA_TYPE_AUDIO   ]->strict_std_compliance);
3163     ic->subtitle_codec_id=
3164         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3165                           avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3166     ic->flags |= AVFMT_FLAG_NONBLOCK;
3167
3168     if(pgmyuv_compatibility_hack)
3169         ic->video_codec_id= CODEC_ID_PGMYUV;
3170
3171     /* open the input file with generic libav function */
3172     err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3173     if (err < 0) {
3174         print_error(filename, err);
3175         av_exit(1);
3176     }
3177     if(opt_programid) {
3178         int i, j;
3179         int found=0;
3180         for(i=0; i<ic->nb_streams; i++){
3181             ic->streams[i]->discard= AVDISCARD_ALL;
3182         }
3183         for(i=0; i<ic->nb_programs; i++){
3184             AVProgram *p= ic->programs[i];
3185             if(p->id != opt_programid){
3186                 p->discard = AVDISCARD_ALL;
3187             }else{
3188                 found=1;
3189                 for(j=0; j<p->nb_stream_indexes; j++){
3190                     ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3191                 }
3192             }
3193         }
3194         if(!found){
3195             fprintf(stderr, "Specified program id not found\n");
3196             av_exit(1);
3197         }
3198         opt_programid=0;
3199     }
3200
3201     ic->loop_input = loop_input;
3202
3203     /* If not enough info to get the stream parameters, we decode the
3204        first frames to get it. (used in mpeg case for example) */
3205     ret = av_find_stream_info(ic);
3206     if (ret < 0 && verbose >= 0) {
3207         fprintf(stderr, "%s: could not find codec parameters\n", filename);
3208         av_exit(1);
3209     }
3210
3211     timestamp = start_time;
3212     /* add the stream start time */
3213     if (ic->start_time != AV_NOPTS_VALUE)
3214         timestamp += ic->start_time;
3215
3216     /* if seeking requested, we execute it */
3217     if (start_time != 0) {
3218         ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3219         if (ret < 0) {
3220             fprintf(stderr, "%s: could not seek to position %0.3f\n",
3221                     filename, (double)timestamp / AV_TIME_BASE);
3222         }
3223         /* reset seek info */
3224         start_time = 0;
3225     }
3226
3227     /* update the current parameters so that they match the one of the input stream */
3228     for(i=0;i<ic->nb_streams;i++) {
3229         AVStream *st = ic->streams[i];
3230         AVCodecContext *enc = st->codec;
3231         avcodec_thread_init(enc, thread_count);
3232         switch(enc->codec_type) {
3233         case AVMEDIA_TYPE_AUDIO:
3234             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3235             //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3236             channel_layout = enc->channel_layout;
3237             audio_channels = enc->channels;
3238             audio_sample_rate = enc->sample_rate;
3239             audio_sample_fmt = enc->sample_fmt;
3240             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3241             if(audio_disable)
3242                 st->discard= AVDISCARD_ALL;
3243             break;
3244         case AVMEDIA_TYPE_VIDEO:
3245             set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3246             frame_height = enc->height;
3247             frame_width = enc->width;
3248             if(ic->streams[i]->sample_aspect_ratio.num)
3249                 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3250             else
3251                 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3252             frame_aspect_ratio *= (float) enc->width / enc->height;
3253             frame_pix_fmt = enc->pix_fmt;
3254             rfps      = ic->streams[i]->r_frame_rate.num;
3255             rfps_base = ic->streams[i]->r_frame_rate.den;
3256             if(enc->lowres) {
3257                 enc->flags |= CODEC_FLAG_EMU_EDGE;
3258                 frame_height >>= enc->lowres;
3259                 frame_width  >>= enc->lowres;
3260             }
3261             if(me_threshold)
3262                 enc->debug |= FF_DEBUG_MV;
3263
3264             if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3265
3266                 if (verbose >= 0)
3267                     fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3268                             i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3269
3270                     (float)rfps / rfps_base, rfps, rfps_base);
3271             }
3272             /* update the current frame rate to match the stream frame rate */
3273             frame_rate.num = rfps;
3274             frame_rate.den = rfps_base;
3275
3276             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3277             if(video_disable)
3278                 st->discard= AVDISCARD_ALL;
3279             else if(video_discard)
3280                 st->discard= video_discard;
3281             break;
3282         case AVMEDIA_TYPE_DATA:
3283             break;
3284         case AVMEDIA_TYPE_SUBTITLE:
3285             input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3286             if(subtitle_disable)
3287                 st->discard = AVDISCARD_ALL;
3288             break;
3289         case AVMEDIA_TYPE_ATTACHMENT:
3290         case AVMEDIA_TYPE_UNKNOWN:
3291             nb_icodecs++;
3292             break;
3293         default:
3294             abort();
3295         }
3296     }
3297
3298     input_files[nb_input_files] = ic;
3299     input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3300     /* dump the file content */
3301     if (verbose >= 0)
3302         dump_format(ic, nb_input_files, filename, 0);
3303
3304     nb_input_files++;
3305
3306     video_channel = 0;
3307
3308     av_freep(&video_codec_name);
3309     av_freep(&audio_codec_name);
3310     av_freep(&subtitle_codec_name);
3311 }
3312
3313 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3314                                          int *has_subtitle_ptr)
3315 {
3316     int has_video, has_audio, has_subtitle, i, j;
3317     AVFormatContext *ic;
3318
3319     has_video = 0;
3320     has_audio = 0;
3321     has_subtitle = 0;
3322     for(j=0;j<nb_input_files;j++) {
3323         ic = input_files[j];
3324         for(i=0;i<ic->nb_streams;i++) {
3325             AVCodecContext *enc = ic->streams[i]->codec;
3326             switch(enc->codec_type) {
3327             case AVMEDIA_TYPE_AUDIO:
3328                 has_audio = 1;
3329                 break;
3330             case AVMEDIA_TYPE_VIDEO:
3331                 has_video = 1;
3332                 break;
3333             case AVMEDIA_TYPE_SUBTITLE:
3334                 has_subtitle = 1;
3335                 break;
3336             case AVMEDIA_TYPE_DATA:
3337             case AVMEDIA_TYPE_ATTACHMENT:
3338             case AVMEDIA_TYPE_UNKNOWN:
3339                 break;
3340             default:
3341                 abort();
3342             }
3343         }
3344     }
3345     *has_video_ptr = has_video;
3346     *has_audio_ptr = has_audio;
3347     *has_subtitle_ptr = has_subtitle;
3348 }
3349
3350 static void new_video_stream(AVFormatContext *oc)
3351 {
3352     AVStream *st;
3353     AVCodecContext *video_enc;
3354     enum CodecID codec_id;
3355
3356     st = av_new_stream(oc, oc->nb_streams);
3357     if (!st) {
3358         fprintf(stderr, "Could not alloc stream\n");
3359         av_exit(1);
3360     }
3361     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3362     bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3363     video_bitstream_filters= NULL;
3364
3365     avcodec_thread_init(st->codec, thread_count);
3366
3367     video_enc = st->codec;
3368
3369     if(video_codec_tag)
3370         video_enc->codec_tag= video_codec_tag;
3371
3372     if(   (video_global_header&1)
3373        || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3374         video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3375         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3376     }
3377     if(video_global_header&2){
3378         video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3379         avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3380     }
3381
3382     if (video_stream_copy) {
3383         st->stream_copy = 1;
3384         video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3385         video_enc->sample_aspect_ratio =
3386         st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3387     } else {
3388         const char *p;
3389         int i;
3390         AVCodec *codec;
3391         AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3392
3393         if (video_codec_name) {
3394             codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3395                                          video_enc->strict_std_compliance);
3396             codec = avcodec_find_encoder_by_name(video_codec_name);
3397             output_codecs[nb_ocodecs] = codec;
3398         } else {
3399             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3400             codec = avcodec_find_encoder(codec_id);
3401         }
3402
3403         video_enc->codec_id = codec_id;
3404
3405         set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3406
3407         if (codec && codec->supported_framerates && !force_fps)
3408             fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3409         video_enc->time_base.den = fps.num;
3410         video_enc->time_base.num = fps.den;
3411
3412         video_enc->width = frame_width;
3413         video_enc->height = frame_height;
3414         video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3415         video_enc->pix_fmt = frame_pix_fmt;
3416         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3417
3418         choose_pixel_fmt(st, codec);
3419
3420         if (intra_only)
3421             video_enc->gop_size = 0;
3422         if (video_qscale || same_quality) {
3423             video_enc->flags |= CODEC_FLAG_QSCALE;
3424             video_enc->global_quality=
3425                 st->quality = FF_QP2LAMBDA * video_qscale;
3426         }
3427
3428         if(intra_matrix)
3429             video_enc->intra_matrix = intra_matrix;
3430         if(inter_matrix)
3431             video_enc->inter_matrix = inter_matrix;
3432
3433         p= video_rc_override_string;
3434         for(i=0; p; i++){
3435             int start, end, q;
3436             int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3437             if(e!=3){
3438                 fprintf(stderr, "error parsing rc_override\n");
3439                 av_exit(1);
3440             }
3441             video_enc->rc_override=
3442                 av_realloc(video_enc->rc_override,
3443                            sizeof(RcOverride)*(i+1));
3444             video_enc->rc_override[i].start_frame= start;
3445             video_enc->rc_override[i].end_frame  = end;
3446             if(q>0){
3447                 video_enc->rc_override[i].qscale= q;
3448                 video_enc->rc_override[i].quality_factor= 1.0;
3449             }
3450             else{
3451                 video_enc->rc_override[i].qscale= 0;
3452                 video_enc->rc_override[i].quality_factor= -q/100.0;
3453             }
3454             p= strchr(p, '/');
3455             if(p) p++;
3456         }
3457         video_enc->rc_override_count=i;
3458         if (!video_enc->rc_initial_buffer_occupancy)
3459             video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3460         video_enc->me_threshold= me_threshold;
3461         video_enc->intra_dc_precision= intra_dc_precision - 8;
3462
3463         if (do_psnr)
3464             video_enc->flags|= CODEC_FLAG_PSNR;
3465
3466         /* two pass mode */
3467         if (do_pass) {
3468             if (do_pass == 1) {
3469                 video_enc->flags |= CODEC_FLAG_PASS1;
3470             } else {
3471                 video_enc->flags |= CODEC_FLAG_PASS2;
3472             }
3473         }
3474     }
3475     nb_ocodecs++;
3476     if (video_language) {
3477         av_metadata_set2(&st->metadata, "language", video_language, 0);
3478         av_freep(&video_language);
3479     }
3480
3481     /* reset some key parameters */
3482     video_disable = 0;
3483     av_freep(&video_codec_name);
3484     video_stream_copy = 0;
3485     frame_pix_fmt = PIX_FMT_NONE;
3486 }
3487
3488 static void new_audio_stream(AVFormatContext *oc)
3489 {
3490     AVStream *st;
3491     AVCodecContext *audio_enc;
3492     enum CodecID codec_id;
3493
3494     st = av_new_stream(oc, oc->nb_streams);
3495     if (!st) {
3496         fprintf(stderr, "Could not alloc stream\n");
3497         av_exit(1);
3498     }
3499     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3500
3501     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3502     audio_bitstream_filters= NULL;
3503
3504     avcodec_thread_init(st->codec, thread_count);
3505
3506     audio_enc = st->codec;
3507     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3508
3509     if(audio_codec_tag)
3510         audio_enc->codec_tag= audio_codec_tag;
3511
3512     if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3513         audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3514         avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3515     }
3516     if (audio_stream_copy) {
3517         st->stream_copy = 1;
3518         audio_enc->channels = audio_channels;
3519         audio_enc->sample_rate = audio_sample_rate;
3520     } else {
3521         AVCodec *codec;
3522
3523         set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3524
3525         if (audio_codec_name) {
3526             codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3527                                          audio_enc->strict_std_compliance);
3528             codec = avcodec_find_encoder_by_name(audio_codec_name);
3529             output_codecs[nb_ocodecs] = codec;
3530         } else {
3531             codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3532             codec = avcodec_find_encoder(codec_id);
3533         }
3534         audio_enc->codec_id = codec_id;
3535
3536         if (audio_qscale > QSCALE_NONE) {
3537             audio_enc->flags |= CODEC_FLAG_QSCALE;
3538             audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3539         }
3540         audio_enc->channels = audio_channels;
3541         audio_enc->sample_fmt = audio_sample_fmt;
3542         audio_enc->sample_rate = audio_sample_rate;
3543         audio_enc->channel_layout = channel_layout;
3544         if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3545             audio_enc->channel_layout = 0;
3546         choose_sample_fmt(st, codec);
3547         choose_sample_rate(st, codec);
3548     }
3549     nb_ocodecs++;
3550     audio_enc->time_base= (AVRational){1, audio_sample_rate};
3551     if (audio_language) {
3552         av_metadata_set2(&st->metadata, "language", audio_language, 0);
3553         av_freep(&audio_language);
3554     }
3555
3556     /* reset some key parameters */
3557     audio_disable = 0;
3558     av_freep(&audio_codec_name);
3559     audio_stream_copy = 0;
3560 }
3561
3562 static void new_subtitle_stream(AVFormatContext *oc)
3563 {
3564     AVStream *st;
3565     AVCodecContext *subtitle_enc;
3566
3567     st = av_new_stream(oc, oc->nb_streams);
3568     if (!st) {
3569         fprintf(stderr, "Could not alloc stream\n");
3570         av_exit(1);
3571     }
3572     avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3573
3574     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3575     subtitle_bitstream_filters= NULL;
3576
3577     subtitle_enc = st->codec;
3578     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3579
3580     if(subtitle_codec_tag)
3581         subtitle_enc->codec_tag= subtitle_codec_tag;
3582
3583     if (subtitle_stream_copy) {
3584         st->stream_copy = 1;
3585     } else {
3586         set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3587         subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3588                                                    subtitle_enc->strict_std_compliance);
3589         output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3590     }
3591     nb_ocodecs++;
3592
3593     if (subtitle_language) {
3594         av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3595         av_freep(&subtitle_language);
3596     }
3597
3598     subtitle_disable = 0;
3599     av_freep(&subtitle_codec_name);
3600     subtitle_stream_copy = 0;
3601 }
3602
3603 static void opt_new_audio_stream(void)
3604 {
3605     AVFormatContext *oc;
3606     if (nb_output_files <= 0) {
3607         fprintf(stderr, "At least one output file must be specified\n");
3608         av_exit(1);
3609     }
3610     oc = output_files[nb_output_files - 1];
3611     new_audio_stream(oc);
3612 }
3613
3614 static void opt_new_video_stream(void)
3615 {
3616     AVFormatContext *oc;
3617     if (nb_output_files <= 0) {
3618         fprintf(stderr, "At least one output file must be specified\n");
3619         av_exit(1);
3620     }
3621     oc = output_files[nb_output_files - 1];
3622     new_video_stream(oc);
3623 }
3624
3625 static void opt_new_subtitle_stream(void)
3626 {
3627     AVFormatContext *oc;
3628     if (nb_output_files <= 0) {
3629         fprintf(stderr, "At least one output file must be specified\n");
3630         av_exit(1);
3631     }
3632     oc = output_files[nb_output_files - 1];
3633     new_subtitle_stream(oc);
3634 }
3635
3636 static void opt_output_file(const char *filename)
3637 {
3638     AVFormatContext *oc;
3639     int err, use_video, use_audio, use_subtitle;
3640     int input_has_video, input_has_audio, input_has_subtitle;
3641     AVFormatParameters params, *ap = &params;
3642     AVOutputFormat *file_oformat;
3643
3644     if (!strcmp(filename, "-"))
3645         filename = "pipe:";
3646
3647     oc = avformat_alloc_context();
3648     if (!oc) {
3649         print_error(filename, AVERROR(ENOMEM));
3650         av_exit(1);
3651     }
3652
3653     if (last_asked_format) {
3654         file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3655         if (!file_oformat) {
3656             fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3657             av_exit(1);
3658         }
3659         last_asked_format = NULL;
3660     } else {
3661         file_oformat = av_guess_format(NULL, filename, NULL);
3662         if (!file_oformat) {
3663             fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3664                     filename);
3665             av_exit(1);
3666         }
3667     }
3668
3669     oc->oformat = file_oformat;
3670     av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3671
3672     if (!strcmp(file_oformat->name, "ffm") &&
3673         av_strstart(filename, "http:", NULL)) {
3674         /* special case for files sent to ffserver: we get the stream
3675            parameters from ffserver */
3676         int err = read_ffserver_streams(oc, filename);
3677         if (err < 0) {
3678             print_error(filename, err);
3679             av_exit(1);
3680         }
3681     } else {
3682         use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3683         use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3684         use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3685
3686         /* disable if no corresponding type found and at least one
3687            input file */
3688         if (nb_input_files > 0) {
3689             check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3690                                          &input_has_subtitle);
3691             if (!input_has_video)
3692                 use_video = 0;
3693             if (!input_has_audio)
3694                 use_audio = 0;
3695             if (!input_has_subtitle)
3696                 use_subtitle = 0;
3697         }
3698
3699         /* manual disable */
3700         if (audio_disable) {
3701             use_audio = 0;
3702         }
3703         if (video_disable) {
3704             use_video = 0;
3705         }
3706         if (subtitle_disable) {
3707             use_subtitle = 0;
3708         }
3709
3710         if (use_video) {
3711             new_video_stream(oc);
3712         }
3713
3714         if (use_audio) {
3715             new_audio_stream(oc);
3716         }
3717
3718         if (use_subtitle) {
3719             new_subtitle_stream(oc);
3720         }
3721
3722         oc->timestamp = recording_timestamp;
3723
3724         for(; metadata_count>0; metadata_count--){
3725             av_metadata_set2(&oc->metadata, metadata[metadata_count-1].key,
3726                                             metadata[metadata_count-1].value, 0);
3727         }
3728         av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
3729     }
3730
3731     output_files[nb_output_files++] = oc;
3732
3733     /* check filename in case of an image number is expected */
3734     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3735         if (!av_filename_number_test(oc->filename)) {
3736             print_error(oc->filename, AVERROR_NUMEXPECTED);
3737             av_exit(1);
3738         }
3739     }
3740
3741     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3742         /* test if it already exists to avoid loosing precious files */
3743         if (!file_overwrite &&
3744             (strchr(filename, ':') == NULL ||
3745              filename[1] == ':' ||
3746              av_strstart(filename, "file:", NULL))) {
3747             if (url_exist(filename)) {
3748                 if (!using_stdin) {
3749                     fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3750                     fflush(stderr);
3751                     if (!read_yesno()) {
3752                         fprintf(stderr, "Not overwriting - exiting\n");
3753                         av_exit(1);
3754                     }
3755                 }
3756                 else {
3757                     fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3758                     av_exit(1);
3759                 }
3760             }
3761         }
3762
3763         /* open the file */
3764         if ((err = url_fopen(&oc->pb, filename, URL_WRONLY)) < 0) {
3765             print_error(filename, err);
3766             av_exit(1);
3767         }
3768     }
3769
3770     memset(ap, 0, sizeof(*ap));
3771     if (av_set_parameters(oc, ap) < 0) {
3772         fprintf(stderr, "%s: Invalid encoding parameters\n",
3773                 oc->filename);
3774         av_exit(1);
3775     }
3776
3777     oc->preload= (int)(mux_preload*AV_TIME_BASE);
3778     oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3779     oc->loop_output = loop_output;
3780     oc->flags |= AVFMT_FLAG_NONBLOCK;
3781
3782     set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
3783 }
3784
3785 /* same option as mencoder */
3786 static void opt_pass(const char *pass_str)
3787 {
3788     int pass;
3789     pass = atoi(pass_str);
3790     if (pass != 1 && pass != 2) {
3791         fprintf(stderr, "pass number can be only 1 or 2\n");
3792         av_exit(1);
3793     }
3794     do_pass = pass;
3795 }
3796
3797 static int64_t getutime(void)
3798 {
3799 #if HAVE_GETRUSAGE
3800     struct rusage rusage;
3801
3802     getrusage(RUSAGE_SELF, &rusage);
3803     return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3804 #elif HAVE_GETPROCESSTIMES
3805     HANDLE proc;
3806     FILETIME c, e, k, u;
3807     proc = GetCurrentProcess();
3808     GetProcessTimes(proc, &c, &e, &k, &u);
3809     return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3810 #else
3811     return av_gettime();
3812 #endif
3813 }
3814
3815 static int64_t getmaxrss(void)
3816 {
3817 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3818     struct rusage rusage;
3819     getrusage(RUSAGE_SELF, &rusage);
3820     return (int64_t)rusage.ru_maxrss * 1024;
3821 #elif HAVE_GETPROCESSMEMORYINFO
3822     HANDLE proc;
3823     PROCESS_MEMORY_COUNTERS memcounters;
3824     proc = GetCurrentProcess();
3825     memcounters.cb = sizeof(memcounters);
3826     GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3827     return memcounters.PeakPagefileUsage;
3828 #else
3829     return 0;
3830 #endif
3831 }
3832
3833 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3834 {
3835     int i;
3836     const char *p = str;
3837     for(i = 0;; i++) {
3838         dest[i] = atoi(p);
3839         if(i == 63)
3840             break;
3841         p = strchr(p, ',');
3842         if(!p) {
3843             fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3844             av_exit(1);
3845         }
3846         p++;
3847     }
3848 }
3849
3850 static void opt_inter_matrix(const char *arg)
3851 {
3852     inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3853     parse_matrix_coeffs(inter_matrix, arg);
3854 }
3855
3856 static void opt_intra_matrix(const char *arg)
3857 {
3858     intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3859     parse_matrix_coeffs(intra_matrix, arg);
3860 }
3861
3862 /**
3863  * Trivial log callback.
3864  * Only suitable for show_help and similar since it lacks prefix handling.
3865  */
3866 static void log_callback_help(void* ptr, int level, const char* fmt, va_list vl)
3867 {
3868     vfprintf(stdout, fmt, vl);
3869 }
3870
3871 static void show_usage(void)
3872 {
3873     printf("Hyper fast Audio and Video encoder\n");
3874     printf("usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...\n");
3875     printf("\n");
3876 }
3877
3878 static void show_help(void)
3879 {
3880     av_log_set_callback(log_callback_help);
3881     show_usage();
3882     show_help_options(options, "Main options:\n",
3883                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3884     show_help_options(options, "\nAdvanced options:\n",
3885                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3886                       OPT_EXPERT);
3887     show_help_options(options, "\nVideo options:\n",
3888                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3889                       OPT_VIDEO);
3890     show_help_options(options, "\nAdvanced Video options:\n",
3891                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3892                       OPT_VIDEO | OPT_EXPERT);
3893     show_help_options(options, "\nAudio options:\n",
3894                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3895                       OPT_AUDIO);
3896     show_help_options(options, "\nAdvanced Audio options:\n",
3897                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3898                       OPT_AUDIO | OPT_EXPERT);
3899     show_help_options(options, "\nSubtitle options:\n",
3900                       OPT_SUBTITLE | OPT_GRAB,
3901                       OPT_SUBTITLE);
3902     show_help_options(options, "\nAudio/Video grab options:\n",
3903                       OPT_GRAB,
3904                       OPT_GRAB);
3905     printf("\n");
3906     av_opt_show(avcodec_opts[0], NULL);
3907     printf("\n");
3908     av_opt_show(avformat_opts, NULL);
3909     printf("\n");
3910     av_opt_show(sws_opts, NULL);
3911 }
3912
3913 static void opt_target(const char *arg)
3914 {
3915     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
3916     static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3917
3918     if(!strncmp(arg, "pal-", 4)) {
3919         norm = PAL;
3920         arg += 4;
3921     } else if(!strncmp(arg, "ntsc-", 5)) {
3922         norm = NTSC;
3923         arg += 5;
3924     } else if(!strncmp(arg, "film-", 5)) {
3925         norm = FILM;
3926         arg += 5;
3927     } else {
3928         int fr;
3929         /* Calculate FR via float to avoid int overflow */
3930         fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
3931         if(fr == 25000) {
3932             norm = PAL;
3933         } else if((fr == 29970) || (fr == 23976)) {
3934             norm = NTSC;
3935         } else {
3936             /* Try to determine PAL/NTSC by peeking in the input files */
3937             if(nb_input_files) {
3938                 int i, j;
3939                 for(j = 0; j < nb_input_files; j++) {
3940                     for(i = 0; i < input_files[j]->nb_streams; i++) {
3941                         AVCodecContext *c = input_files[j]->streams[i]->codec;
3942                         if(c->codec_type != AVMEDIA_TYPE_VIDEO)
3943                             continue;
3944                         fr = c->time_base.den * 1000 / c->time_base.num;
3945                         if(fr == 25000) {
3946                             norm = PAL;
3947                             break;
3948                         } else if((fr == 29970) || (fr == 23976)) {
3949                             norm = NTSC;
3950                             break;
3951                         }
3952                     }
3953                     if(norm != UNKNOWN)
3954                         break;
3955                 }
3956             }
3957         }
3958         if(verbose && norm != UNKNOWN)
3959             fprintf(stderr, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
3960     }
3961
3962     if(norm == UNKNOWN) {
3963         fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
3964         fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
3965         fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
3966         av_exit(1);
3967     }
3968
3969     if(!strcmp(arg, "vcd")) {
3970
3971         opt_video_codec("mpeg1video");
3972         opt_audio_codec("mp2");
3973         opt_format("vcd");
3974
3975         opt_frame_size(norm == PAL ? "352x288" : "352x240");
3976         opt_frame_rate(NULL, frame_rates[norm]);
3977         opt_default("g", norm == PAL ? "15" : "18");
3978
3979         opt_default("b", "1150000");
3980         opt_default("maxrate", "1150000");
3981         opt_default("minrate", "1150000");
3982         opt_default("bufsize", "327680"); // 40*1024*8;
3983
3984         opt_default("ab", "224000");
3985         audio_sample_rate = 44100;
3986         audio_channels = 2;
3987
3988         opt_default("packetsize", "2324");
3989         opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
3990
3991         /* We have to offset the PTS, so that it is consistent with the SCR.
3992            SCR starts at 36000, but the first two packs contain only padding
3993