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