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96f17803955e1f8e8dcd2b5a6c23e76abb99ad81
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/libm.h"
44 #include "libavformat/os_support.h"
45
46 #if CONFIG_AVFILTER
47 # include "libavfilter/avfilter.h"
48 # include "libavfilter/avfiltergraph.h"
49 # include "libavfilter/graphparser.h"
50 # include "libavfilter/vsrc_buffer.h"
51 #endif
52
53 #if HAVE_SYS_RESOURCE_H
54 #include <sys/types.h>
55 #include <sys/time.h>
56 #include <sys/resource.h>
57 #elif HAVE_GETPROCESSTIMES
58 #include <windows.h>
59 #endif
60 #if HAVE_GETPROCESSMEMORYINFO
61 #include <windows.h>
62 #include <psapi.h>
63 #endif
64
65 #if HAVE_SYS_SELECT_H
66 #include <sys/select.h>
67 #endif
68
69 #if HAVE_TERMIOS_H
70 #include <fcntl.h>
71 #include <sys/ioctl.h>
72 #include <sys/time.h>
73 #include <termios.h>
74 #elif HAVE_CONIO_H
75 #include <conio.h>
76 #endif
77 #include <time.h>
78
79 #include "cmdutils.h"
80
81 #undef NDEBUG
82 #include <assert.h>
83
84 const char program_name[] = "FFmpeg";
85 const int program_birth_year = 2000;
86
87 /* select an input stream for an output stream */
88 typedef struct AVStreamMap {
89 int file_index;
90 int stream_index;
91 int sync_file_index;
92 int sync_stream_index;
93 } AVStreamMap;
94
95 /** select an input file for an output file */
96 typedef struct AVMetaDataMap {
97 int out_file;
98 int in_file;
99 } AVMetaDataMap;
100
101 static const OptionDef options[];
102
103 #define MAX_FILES 100
104
105 static const char *last_asked_format = NULL;
106 static AVFormatContext *input_files[MAX_FILES];
107 static int64_t input_files_ts_offset[MAX_FILES];
108 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
109 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
110 static int nb_input_files = 0;
111 static int nb_icodecs;
112
113 static AVFormatContext *output_files[MAX_FILES];
114 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
115 static int nb_output_files = 0;
116 static int nb_ocodecs;
117
118 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
119 static int nb_stream_maps;
120
121 static AVMetaDataMap meta_data_maps[MAX_FILES];
122 static int nb_meta_data_maps;
123
124 static int frame_width = 0;
125 static int frame_height = 0;
126 static float frame_aspect_ratio = 0;
127 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
128 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
129 static int frame_topBand = 0;
130 static int frame_bottomBand = 0;
131 static int frame_leftBand = 0;
132 static int frame_rightBand = 0;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static char *video_codec_name = NULL;
142 static unsigned int video_codec_tag = 0;
143 static char *video_language = NULL;
144 static int same_quality = 0;
145 static int do_deinterlace = 0;
146 static int top_field_first = -1;
147 static int me_threshold = 0;
148 static int intra_dc_precision = 8;
149 static int loop_input = 0;
150 static int loop_output = AVFMT_NOOUTPUTLOOP;
151 static int qp_hist = 0;
152 #if CONFIG_AVFILTER
153 static char *vfilters = NULL;
154 AVFilterGraph *graph = NULL;
155 #endif
156
157 static int intra_only = 0;
158 static int audio_sample_rate = 44100;
159 static int64_t channel_layout = 0;
160 #define QSCALE_NONE -99999
161 static float audio_qscale = QSCALE_NONE;
162 static int audio_disable = 0;
163 static int audio_channels = 1;
164 static char *audio_codec_name = NULL;
165 static unsigned int audio_codec_tag = 0;
166 static char *audio_language = NULL;
167
168 static int subtitle_disable = 0;
169 static char *subtitle_codec_name = NULL;
170 static char *subtitle_language = NULL;
171 static unsigned int subtitle_codec_tag = 0;
172
173 static float mux_preload= 0.5;
174 static float mux_max_delay= 0.7;
175
176 static int64_t recording_time = INT64_MAX;
177 static int64_t start_time = 0;
178 static int64_t rec_timestamp = 0;
179 static int64_t input_ts_offset = 0;
180 static int file_overwrite = 0;
181 static int metadata_count;
182 static AVMetadataTag *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static char *pass_logfilename_prefix = NULL;
189 static int audio_stream_copy = 0;
190 static int video_stream_copy = 0;
191 static int subtitle_stream_copy = 0;
192 static int video_sync_method= -1;
193 static int audio_sync_method= 0;
194 static float audio_drift_threshold= 0.1;
195 static int copy_ts= 0;
196 static int opt_shortest = 0;
197 static int video_global_header = 0;
198 static char *vstats_filename;
199 static FILE *vstats_file;
200 static int opt_programid = 0;
201 static int copy_initial_nonkeyframes = 0;
202
203 static int rate_emu = 0;
204
205 static int video_channel = 0;
206 static char *video_standard;
207
208 static int audio_volume = 256;
209
210 static int exit_on_error = 0;
211 static int using_stdin = 0;
212 static int verbose = 1;
213 static int thread_count= 1;
214 static int q_pressed = 0;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223
224 static int pgmyuv_compatibility_hack=0;
225 static float dts_delta_threshold = 10;
226
227 static unsigned int sws_flags = SWS_BICUBIC;
228
229 static int64_t timer_start;
230
231 static uint8_t *audio_buf;
232 static uint8_t *audio_out;
233 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
234
235 static short *samples;
236
237 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
239 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
240 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
241
242 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
243
244 struct AVInputStream;
245
246 typedef struct AVOutputStream {
247 int file_index; /* file index */
248 int index; /* stream index in the output file */
249 int source_index; /* AVInputStream index */
250 AVStream *st; /* stream in the output file */
251 int encoding_needed; /* true if encoding needed for this stream */
252 int frame_number;
253 /* input pts and corresponding output pts
254 for A/V sync */
255 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
256 struct AVInputStream *sync_ist; /* input stream to sync against */
257 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
258 /* video only */
259 int video_resample;
260 AVFrame pict_tmp; /* temporary image for resampling */
261 struct SwsContext *img_resample_ctx; /* for image resampling */
262 int resample_height;
263 int resample_width;
264 int resample_pix_fmt;
265
266 /* full frame size of first frame */
267 int original_height;
268 int original_width;
269
270 /* cropping area sizes */
271 int video_crop;
272 int topBand;
273 int bottomBand;
274 int leftBand;
275 int rightBand;
276
277 /* cropping area of first frame */
278 int original_topBand;
279 int original_bottomBand;
280 int original_leftBand;
281 int original_rightBand;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 int reformat_pair;
287 AVAudioConvert *reformat_ctx;
288 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
289 FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293 int file_index;
294 int index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 int64_t sample_index; /* current sample */
299
300 int64_t start; /* time when read started */
301 int64_t next_pts; /* synthetic pts for cases where pkt.pts
302 is not defined */
303 int64_t pts; /* current pts */
304 int is_start; /* is 1 at the start and after a discontinuity */
305 int showed_multi_packet_warning;
306 int is_past_recording_time;
307 #if CONFIG_AVFILTER
308 AVFilterContext *out_video_filter;
309 AVFilterContext *input_video_filter;
310 AVFrame *filter_frame;
311 int has_filter_frame;
312 AVFilterPicRef *picref;
313 #endif
314 } AVInputStream;
315
316 typedef struct AVInputFile {
317 int eof_reached; /* true if eof reached */
318 int ist_index; /* index of first stream in ist_table */
319 int buffer_size; /* current total buffer size */
320 int nb_streams; /* nb streams we are aware of */
321 } AVInputFile;
322
323 #if HAVE_TERMIOS_H
324
325 /* init terminal so that we can grab keys */
326 static struct termios oldtty;
327 #endif
328
329 #if CONFIG_AVFILTER
330 typedef struct {
331 int pix_fmt;
332 } FilterOutPriv;
333
334
335 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
336 {
337 FilterOutPriv *priv = ctx->priv;
338
339 if(!opaque) return -1;
340
341 priv->pix_fmt = *((int *)opaque);
342
343 return 0;
344 }
345
346 static void output_end_frame(AVFilterLink *link)
347 {
348 }
349
350 static int output_query_formats(AVFilterContext *ctx)
351 {
352 FilterOutPriv *priv = ctx->priv;
353 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
354
355 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
356 return 0;
357 }
358
359 static int get_filtered_video_pic(AVFilterContext *ctx,
360 AVFilterPicRef **picref, AVFrame *pic2,
361 uint64_t *pts)
362 {
363 AVFilterPicRef *pic;
364
365 if(avfilter_request_frame(ctx->inputs[0]))
366 return -1;
367 if(!(pic = ctx->inputs[0]->cur_pic))
368 return -1;
369 *picref = pic;
370 ctx->inputs[0]->cur_pic = NULL;
371
372 *pts = pic->pts;
373
374 memcpy(pic2->data, pic->data, sizeof(pic->data));
375 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
376 pic2->interlaced_frame = pic->interlaced;
377 pic2->top_field_first = pic->top_field_first;
378
379 return 1;
380 }
381
382 static AVFilter output_filter =
383 {
384 .name = "ffmpeg_output",
385
386 .priv_size = sizeof(FilterOutPriv),
387 .init = output_init,
388
389 .query_formats = output_query_formats,
390
391 .inputs = (AVFilterPad[]) {{ .name = "default",
392 .type = AVMEDIA_TYPE_VIDEO,
393 .end_frame = output_end_frame,
394 .min_perms = AV_PERM_READ, },
395 { .name = NULL }},
396 .outputs = (AVFilterPad[]) {{ .name = NULL }},
397 };
398
399 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
400 {
401 AVFilterContext *last_filter, *filter;
402 /** filter graph containing all filters including input & output */
403 AVCodecContext *codec = ost->st->codec;
404 AVCodecContext *icodec = ist->st->codec;
405 char args[255];
406
407 graph = av_mallocz(sizeof(AVFilterGraph));
408
409 if (!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
410 return -1;
411 if (!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
412 return -1;
413
414 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
415 ist->st->codec->height, ist->st->codec->pix_fmt);
416 if (avfilter_init_filter(ist->input_video_filter, args, NULL))
417 return -1;
418 if (avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
419 return -1;
420
421 /* add input and output filters to the overall graph */
422 avfilter_graph_add_filter(graph, ist->input_video_filter);
423 avfilter_graph_add_filter(graph, ist->out_video_filter);
424
425 last_filter = ist->input_video_filter;
426
427 if (ost->video_crop) {
428 snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
429 codec->width,
430 codec->height);
431 filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
432 if (!filter)
433 return -1;
434 if (avfilter_init_filter(filter, args, NULL))
435 return -1;
436 if (avfilter_link(last_filter, 0, filter, 0))
437 return -1;
438 last_filter = filter;
439 avfilter_graph_add_filter(graph, last_filter);
440 }
441
442 if((codec->width !=
443 icodec->width - (frame_leftBand + frame_rightBand)) ||
444 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
445 snprintf(args, 255, "%d:%d:flags=0x%X",
446 codec->width,
447 codec->height,
448 (int)av_get_int(sws_opts, "sws_flags", NULL));
449 filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
450 if (!filter)
451 return -1;
452 if (avfilter_init_filter(filter, args, NULL))
453 return -1;
454 if (avfilter_link(last_filter, 0, filter, 0))
455 return -1;
456 last_filter = filter;
457 avfilter_graph_add_filter(graph, last_filter);
458 }
459
460 if (vfilters) {
461 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
462 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
463
464 outputs->name = av_strdup("in");
465 outputs->filter = last_filter;
466 outputs->pad_idx = 0;
467 outputs->next = NULL;
468
469 inputs->name = av_strdup("out");
470 inputs->filter = ist->out_video_filter;
471 inputs->pad_idx = 0;
472 inputs->next = NULL;
473
474 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
475 return -1;
476 av_freep(&vfilters);
477 } else {
478 if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
479 return -1;
480 }
481
482 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
483 graph->scale_sws_opts = av_strdup(args);
484
485 /* configure all the filter links */
486 if (avfilter_graph_check_validity(graph, NULL))
487 return -1;
488 if (avfilter_graph_config_formats(graph, NULL))
489 return -1;
490 if (avfilter_graph_config_links(graph, NULL))
491 return -1;
492
493 codec->width = ist->out_video_filter->inputs[0]->w;
494 codec->height = ist->out_video_filter->inputs[0]->h;
495
496 return 0;
497 }
498 #endif /* CONFIG_AVFILTER */
499
500 static void term_exit(void)
501 {
502 #if HAVE_TERMIOS_H
503 tcsetattr (0, TCSANOW, &oldtty);
504 #endif
505 }
506
507 static volatile int received_sigterm = 0;
508
509 static void
510 sigterm_handler(int sig)
511 {
512 received_sigterm = sig;
513 term_exit();
514 }
515
516 static void term_init(void)
517 {
518 #if HAVE_TERMIOS_H
519 struct termios tty;
520
521 tcgetattr (0, &tty);
522 oldtty = tty;
523 atexit(term_exit);
524
525 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
526 |INLCR|IGNCR|ICRNL|IXON);
527 tty.c_oflag |= OPOST;
528 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
529 tty.c_cflag &= ~(CSIZE|PARENB);
530 tty.c_cflag |= CS8;
531 tty.c_cc[VMIN] = 1;
532 tty.c_cc[VTIME] = 0;
533
534 tcsetattr (0, TCSANOW, &tty);
535 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
536 #endif
537
538 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
539 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
540 #ifdef SIGXCPU
541 signal(SIGXCPU, sigterm_handler);
542 #endif
543 }
544
545 /* read a key without blocking */
546 static int read_key(void)
547 {
548 #if HAVE_TERMIOS_H
549 int n = 1;
550 unsigned char ch;
551 struct timeval tv;
552 fd_set rfds;
553
554 FD_ZERO(&rfds);
555 FD_SET(0, &rfds);
556 tv.tv_sec = 0;
557 tv.tv_usec = 0;
558 n = select(1, &rfds, NULL, NULL, &tv);
559 if (n > 0) {
560 n = read(0, &ch, 1);
561 if (n == 1)
562 return ch;
563
564 return n;
565 }
566 #elif HAVE_CONIO_H
567 if(kbhit())
568 return(getch());
569 #endif
570 return -1;
571 }
572
573 static int decode_interrupt_cb(void)
574 {
575 return q_pressed || (q_pressed = read_key() == 'q');
576 }
577
578 static int av_exit(int ret)
579 {
580 int i;
581
582 /* close files */
583 for(i=0;i<nb_output_files;i++) {
584 /* maybe av_close_output_file ??? */
585 AVFormatContext *s = output_files[i];
586 int j;
587 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
588 url_fclose(s->pb);
589 for(j=0;j<s->nb_streams;j++) {
590 av_metadata_free(&s->streams[j]->metadata);
591 av_free(s->streams[j]->codec);
592 av_free(s->streams[j]);
593 }
594 for(j=0;j<s->nb_programs;j++) {
595 av_metadata_free(&s->programs[j]->metadata);
596 }
597 for(j=0;j<s->nb_chapters;j++) {
598 av_metadata_free(&s->chapters[j]->metadata);
599 }
600 av_metadata_free(&s->metadata);
601 av_free(s);
602 }
603 for(i=0;i<nb_input_files;i++)
604 av_close_input_file(input_files[i]);
605
606 av_free(intra_matrix);
607 av_free(inter_matrix);
608
609 if (vstats_file)
610 fclose(vstats_file);
611 av_free(vstats_filename);
612
613 av_free(opt_names);
614
615 av_free(video_codec_name);
616 av_free(audio_codec_name);
617 av_free(subtitle_codec_name);
618
619 av_free(video_standard);
620
621 #if CONFIG_POWERPC_PERF
622 void powerpc_display_perf_report(void);
623 powerpc_display_perf_report();
624 #endif /* CONFIG_POWERPC_PERF */
625
626 for (i=0;i<AVMEDIA_TYPE_NB;i++)
627 av_free(avcodec_opts[i]);
628 av_free(avformat_opts);
629 av_free(sws_opts);
630 av_free(audio_buf);
631 av_free(audio_out);
632 allocated_audio_buf_size= allocated_audio_out_size= 0;
633 av_free(samples);
634
635 #if CONFIG_AVFILTER
636 avfilter_uninit();
637 #endif
638
639 if (received_sigterm) {
640 fprintf(stderr,
641 "Received signal %d: terminating.\n",
642 (int) received_sigterm);
643 exit (255);
644 }
645
646 exit(ret); /* not all OS-es handle main() return value */
647 return ret;
648 }
649
650 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
651 {
652 if(codec && codec->sample_fmts){
653 const enum SampleFormat *p= codec->sample_fmts;
654 for(; *p!=-1; p++){
655 if(*p == st->codec->sample_fmt)
656 break;
657 }
658 if(*p == -1)
659 st->codec->sample_fmt = codec->sample_fmts[0];
660 }
661 }
662
663 static void choose_sample_rate(AVStream *st, AVCodec *codec)
664 {
665 if(codec && codec->supported_samplerates){
666 const int *p= codec->supported_samplerates;
667 int best;
668 int best_dist=INT_MAX;
669 for(; *p; p++){
670 int dist= abs(st->codec->sample_rate - *p);
671 if(dist < best_dist){
672 best_dist= dist;
673 best= *p;
674 }
675 }
676 if(best_dist){
677 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
678 }
679 st->codec->sample_rate= best;
680 }
681 }
682
683 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
684 {
685 if(codec && codec->pix_fmts){
686 const enum PixelFormat *p= codec->pix_fmts;
687 for(; *p!=-1; p++){
688 if(*p == st->codec->pix_fmt)
689 break;
690 }
691 if(*p == -1
692 && !( st->codec->codec_id==CODEC_ID_MJPEG
693 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
694 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
695 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
696 st->codec->pix_fmt = codec->pix_fmts[0];
697 }
698 }
699
700 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
701 {
702 int i, err;
703 AVFormatContext *ic;
704 int nopts = 0;
705
706 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
707 if (err < 0)
708 return err;
709 /* copy stream format */
710 s->nb_streams = ic->nb_streams;
711 for(i=0;i<ic->nb_streams;i++) {
712 AVStream *st;
713 AVCodec *codec;
714
715 // FIXME: a more elegant solution is needed
716 st = av_mallocz(sizeof(AVStream));
717 memcpy(st, ic->streams[i], sizeof(AVStream));
718 st->codec = avcodec_alloc_context();
719 if (!st->codec) {
720 print_error(filename, AVERROR(ENOMEM));
721 av_exit(1);
722 }
723 avcodec_copy_context(st->codec, ic->streams[i]->codec);
724 s->streams[i] = st;
725
726 codec = avcodec_find_encoder(st->codec->codec_id);
727 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
728 if (audio_stream_copy) {
729 st->stream_copy = 1;
730 } else
731 choose_sample_fmt(st, codec);
732 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
733 if (video_stream_copy) {
734 st->stream_copy = 1;
735 } else
736 choose_pixel_fmt(st, codec);
737 }
738
739 if(!st->codec->thread_count)
740 st->codec->thread_count = 1;
741 if(st->codec->thread_count>1)
742 avcodec_thread_init(st->codec, st->codec->thread_count);
743
744 if(st->codec->flags & CODEC_FLAG_BITEXACT)
745 nopts = 1;
746 }
747
748 if (!nopts)
749 s->timestamp = av_gettime();
750
751 av_close_input_file(ic);
752 return 0;
753 }
754
755 static double
756 get_sync_ipts(const AVOutputStream *ost)
757 {
758 const AVInputStream *ist = ost->sync_ist;
759 return (double)(ist->pts - start_time)/AV_TIME_BASE;
760 }
761
762 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
763 int ret;
764
765 while(bsfc){
766 AVPacket new_pkt= *pkt;
767 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
768 &new_pkt.data, &new_pkt.size,
769 pkt->data, pkt->size,
770 pkt->flags & AV_PKT_FLAG_KEY);
771 if(a>0){
772 av_free_packet(pkt);
773 new_pkt.destruct= av_destruct_packet;
774 } else if(a<0){
775 fprintf(stderr, "%s failed for stream %d, codec %s",
776 bsfc->filter->name, pkt->stream_index,
777 avctx->codec ? avctx->codec->name : "copy");
778 print_error("", a);
779 if (exit_on_error)
780 av_exit(1);
781 }
782 *pkt= new_pkt;
783
784 bsfc= bsfc->next;
785 }
786
787 ret= av_interleaved_write_frame(s, pkt);
788 if(ret < 0){
789 print_error("av_interleaved_write_frame()", ret);
790 av_exit(1);
791 }
792 }
793
794 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
795
796 static void do_audio_out(AVFormatContext *s,
797 AVOutputStream *ost,
798 AVInputStream *ist,
799 unsigned char *buf, int size)
800 {
801 uint8_t *buftmp;
802 int64_t audio_out_size, audio_buf_size;
803 int64_t allocated_for_size= size;
804
805 int size_out, frame_bytes, ret;
806 AVCodecContext *enc= ost->st->codec;
807 AVCodecContext *dec= ist->st->codec;
808 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
809 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
810 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
811
812 need_realloc:
813 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
814 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
815 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
816 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
817 audio_buf_size*= osize*enc->channels;
818
819 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
820 if(coded_bps > 8*osize)
821 audio_out_size= audio_out_size * coded_bps / (8*osize);
822 audio_out_size += FF_MIN_BUFFER_SIZE;
823
824 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
825 fprintf(stderr, "Buffer sizes too large\n");
826 av_exit(1);
827 }
828
829 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
830 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
831 if (!audio_buf || !audio_out){
832 fprintf(stderr, "Out of memory in do_audio_out\n");
833 av_exit(1);
834 }
835
836 if (enc->channels != dec->channels)
837 ost->audio_resample = 1;
838
839 if (ost->audio_resample && !ost->resample) {
840 if (dec->sample_fmt != SAMPLE_FMT_S16)
841 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
842 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
843 enc->sample_rate, dec->sample_rate,
844 enc->sample_fmt, dec->sample_fmt,
845 16, 10, 0, 0.8);
846 if (!ost->resample) {
847 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
848 dec->channels, dec->sample_rate,
849 enc->channels, enc->sample_rate);
850 av_exit(1);
851 }
852 }
853
854 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
855 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
856 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
857 if (ost->reformat_ctx)
858 av_audio_convert_free(ost->reformat_ctx);
859 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
860 dec->sample_fmt, 1, NULL, 0);
861 if (!ost->reformat_ctx) {
862 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
863 avcodec_get_sample_fmt_name(dec->sample_fmt),
864 avcodec_get_sample_fmt_name(enc->sample_fmt));
865 av_exit(1);
866 }
867 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
868 }
869
870 if(audio_sync_method){
871 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
872 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
873 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
874 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
875
876 //FIXME resample delay
877 if(fabs(delta) > 50){
878 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
879 if(byte_delta < 0){
880 byte_delta= FFMAX(byte_delta, -size);
881 size += byte_delta;
882 buf -= byte_delta;
883 if(verbose > 2)
884 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
885 if(!size)
886 return;
887 ist->is_start=0;
888 }else{
889 static uint8_t *input_tmp= NULL;
890 input_tmp= av_realloc(input_tmp, byte_delta + size);
891
892 if(byte_delta > allocated_for_size - size){
893 allocated_for_size= byte_delta + (int64_t)size;
894 goto need_realloc;
895 }
896 ist->is_start=0;
897
898 memset(input_tmp, 0, byte_delta);
899 memcpy(input_tmp + byte_delta, buf, size);
900 buf= input_tmp;
901 size += byte_delta;
902 if(verbose > 2)
903 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
904 }
905 }else if(audio_sync_method>1){
906 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
907 assert(ost->audio_resample);
908 if(verbose > 2)
909 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
910 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
911 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
912 }
913 }
914 }else
915 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
916 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
917
918 if (ost->audio_resample) {
919 buftmp = audio_buf;
920 size_out = audio_resample(ost->resample,
921 (short *)buftmp, (short *)buf,
922 size / (ist->st->codec->channels * isize));
923 size_out = size_out * enc->channels * osize;
924 } else {
925 buftmp = buf;
926 size_out = size;
927 }
928
929 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
930 const void *ibuf[6]= {buftmp};
931 void *obuf[6]= {audio_buf};
932 int istride[6]= {isize};
933 int ostride[6]= {osize};
934 int len= size_out/istride[0];
935 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
936 printf("av_audio_convert() failed\n");
937 if (exit_on_error)
938 av_exit(1);
939 return;
940 }
941 buftmp = audio_buf;
942 size_out = len*osize;
943 }
944
945 /* now encode as many frames as possible */
946 if (enc->frame_size > 1) {
947 /* output resampled raw samples */
948 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
949 fprintf(stderr, "av_fifo_realloc2() failed\n");
950 av_exit(1);
951 }
952 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
953
954 frame_bytes = enc->frame_size * osize * enc->channels;
955
956 while (av_fifo_size(ost->fifo) >= frame_bytes) {
957 AVPacket pkt;
958 av_init_packet(&pkt);
959
960 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
961
962 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
963
964 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
965 (short *)audio_buf);
966 if (ret < 0) {
967 fprintf(stderr, "Audio encoding failed\n");
968 av_exit(1);
969 }
970 audio_size += ret;
971 pkt.stream_index= ost->index;
972 pkt.data= audio_out;
973 pkt.size= ret;
974 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
975 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
976 pkt.flags |= AV_PKT_FLAG_KEY;
977 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
978
979 ost->sync_opts += enc->frame_size;
980 }
981 } else {
982 AVPacket pkt;
983 av_init_packet(&pkt);
984
985 ost->sync_opts += size_out / (osize * enc->channels);
986
987 /* output a pcm frame */
988 /* determine the size of the coded buffer */
989 size_out /= osize;
990 if (coded_bps)
991 size_out = size_out*coded_bps/8;
992
993 if(size_out > audio_out_size){
994 fprintf(stderr, "Internal error, buffer size too small\n");
995 av_exit(1);
996 }
997
998 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
999 ret = avcodec_encode_audio(enc, audio_out, size_out,
1000 (short *)buftmp);
1001 if (ret < 0) {
1002 fprintf(stderr, "Audio encoding failed\n");
1003 av_exit(1);
1004 }
1005 audio_size += ret;
1006 pkt.stream_index= ost->index;
1007 pkt.data= audio_out;
1008 pkt.size= ret;
1009 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1010 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1011 pkt.flags |= AV_PKT_FLAG_KEY;
1012 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1013 }
1014 }
1015
1016 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1017 {
1018 AVCodecContext *dec;
1019 AVPicture *picture2;
1020 AVPicture picture_tmp;
1021 uint8_t *buf = 0;
1022
1023 dec = ist->st->codec;
1024
1025 /* deinterlace : must be done before any resize */
1026 if (do_deinterlace) {
1027 int size;
1028
1029 /* create temporary picture */
1030 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1031 buf = av_malloc(size);
1032 if (!buf)
1033 return;
1034
1035 picture2 = &picture_tmp;
1036 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1037
1038 if(avpicture_deinterlace(picture2, picture,
1039 dec->pix_fmt, dec->width, dec->height) < 0) {
1040 /* if error, do not deinterlace */
1041 fprintf(stderr, "Deinterlacing failed\n");
1042 av_free(buf);
1043 buf = NULL;
1044 picture2 = picture;
1045 }
1046 } else {
1047 picture2 = picture;
1048 }
1049
1050 if (picture != picture2)
1051 *picture = *picture2;
1052 *bufp = buf;
1053 }
1054
1055 /* we begin to correct av delay at this threshold */
1056 #define AV_DELAY_MAX 0.100
1057
1058 static void do_subtitle_out(AVFormatContext *s,
1059 AVOutputStream *ost,
1060 AVInputStream *ist,
1061 AVSubtitle *sub,
1062 int64_t pts)
1063 {
1064 static uint8_t *subtitle_out = NULL;
1065 int subtitle_out_max_size = 1024 * 1024;
1066 int subtitle_out_size, nb, i;
1067 AVCodecContext *enc;
1068 AVPacket pkt;
1069
1070 if (pts == AV_NOPTS_VALUE) {
1071 fprintf(stderr, "Subtitle packets must have a pts\n");
1072 if (exit_on_error)
1073 av_exit(1);
1074 return;
1075 }
1076
1077 enc = ost->st->codec;
1078
1079 if (!subtitle_out) {
1080 subtitle_out = av_malloc(subtitle_out_max_size);
1081 }
1082
1083 /* Note: DVB subtitle need one packet to draw them and one other
1084 packet to clear them */
1085 /* XXX: signal it in the codec context ? */
1086 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1087 nb = 2;
1088 else
1089 nb = 1;
1090
1091 for(i = 0; i < nb; i++) {
1092 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1093 // start_display_time is required to be 0
1094 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1095 sub->end_display_time -= sub->start_display_time;
1096 sub->start_display_time = 0;
1097 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1098 subtitle_out_max_size, sub);
1099 if (subtitle_out_size < 0) {
1100 fprintf(stderr, "Subtitle encoding failed\n");
1101 av_exit(1);
1102 }
1103
1104 av_init_packet(&pkt);
1105 pkt.stream_index = ost->index;
1106 pkt.data = subtitle_out;
1107 pkt.size = subtitle_out_size;
1108 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1109 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1110 /* XXX: the pts correction is handled here. Maybe handling
1111 it in the codec would be better */
1112 if (i == 0)
1113 pkt.pts += 90 * sub->start_display_time;
1114 else
1115 pkt.pts += 90 * sub->end_display_time;
1116 }
1117 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1118 }
1119 }
1120
1121 static int bit_buffer_size= 1024*256;
1122 static uint8_t *bit_buffer= NULL;
1123
1124 static void do_video_out(AVFormatContext *s,
1125 AVOutputStream *ost,
1126 AVInputStream *ist,
1127 AVFrame *in_picture,
1128 int *frame_size)
1129 {
1130 int nb_frames, i, ret;
1131 #if !CONFIG_AVFILTER
1132 int64_t topBand, bottomBand, leftBand, rightBand;
1133 #endif
1134 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1135 AVFrame picture_crop_temp, picture_pad_temp;
1136 AVCodecContext *enc, *dec;
1137 double sync_ipts;
1138
1139 avcodec_get_frame_defaults(&picture_crop_temp);
1140 avcodec_get_frame_defaults(&picture_pad_temp);
1141
1142 enc = ost->st->codec;
1143 dec = ist->st->codec;
1144
1145 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1146
1147 /* by default, we output a single frame */
1148 nb_frames = 1;
1149
1150 *frame_size = 0;
1151
1152 if(video_sync_method){
1153 double vdelta = sync_ipts - ost->sync_opts;
1154 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155 if (vdelta < -1.1)
1156 nb_frames = 0;
1157 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1158 if(vdelta<=-0.6){
1159 nb_frames=0;
1160 }else if(vdelta>0.6)
1161 ost->sync_opts= lrintf(sync_ipts);
1162 }else if (vdelta > 1.1)
1163 nb_frames = lrintf(vdelta);
1164 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1165 if (nb_frames == 0){
1166 ++nb_frames_drop;
1167 if (verbose>2)
1168 fprintf(stderr, "*** drop!\n");
1169 }else if (nb_frames > 1) {
1170 nb_frames_dup += nb_frames - 1;
1171 if (verbose>2)
1172 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173 }
1174 }else
1175 ost->sync_opts= lrintf(sync_ipts);
1176
1177 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1178 if (nb_frames <= 0)
1179 return;
1180
1181 #if CONFIG_AVFILTER
1182 formatted_picture = in_picture;
1183 #else
1184 if (ost->video_crop) {
1185 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1186 fprintf(stderr, "error cropping picture\n");
1187 if (exit_on_error)
1188 av_exit(1);
1189 return;
1190 }
1191 formatted_picture = &picture_crop_temp;
1192 } else {
1193 formatted_picture = in_picture;
1194 }
1195 #endif
1196
1197 final_picture = formatted_picture;
1198 padding_src = formatted_picture;
1199 resampling_dst = &ost->pict_tmp;
1200
1201 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1202 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1203 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1204
1205 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1206 if(!ost->video_resample)
1207 av_exit(1);
1208 }
1209
1210 #if !CONFIG_AVFILTER
1211 if (ost->video_resample) {
1212 padding_src = NULL;
1213 final_picture = &ost->pict_tmp;
1214 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1215 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1216 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1217
1218 /* keep bands proportional to the frame size */
1219 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1220 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1221 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1222 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1223
1224 /* sanity check to ensure no bad band sizes sneak in */
1225 assert(topBand <= INT_MAX && topBand >= 0);
1226 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1227 assert(leftBand <= INT_MAX && leftBand >= 0);
1228 assert(rightBand <= INT_MAX && rightBand >= 0);
1229
1230 ost->topBand = topBand;
1231 ost->bottomBand = bottomBand;
1232 ost->leftBand = leftBand;
1233 ost->rightBand = rightBand;
1234
1235 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1236 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1237 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1238
1239 /* initialize a new scaler context */
1240 sws_freeContext(ost->img_resample_ctx);
1241 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1242 ost->img_resample_ctx = sws_getContext(
1243 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1244 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1245 ist->st->codec->pix_fmt,
1246 ost->st->codec->width,
1247 ost->st->codec->height,
1248 ost->st->codec->pix_fmt,
1249 sws_flags, NULL, NULL, NULL);
1250 if (ost->img_resample_ctx == NULL) {
1251 fprintf(stderr, "Cannot get resampling context\n");
1252 av_exit(1);
1253 }
1254 }
1255 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1256 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1257 }
1258 #endif
1259
1260 /* duplicates frame if needed */
1261 for(i=0;i<nb_frames;i++) {
1262 AVPacket pkt;
1263 av_init_packet(&pkt);
1264 pkt.stream_index= ost->index;
1265
1266 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1267 /* raw pictures are written as AVPicture structure to
1268 avoid any copies. We support temorarily the older
1269 method. */
1270 AVFrame* old_frame = enc->coded_frame;
1271 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1272 pkt.data= (uint8_t *)final_picture;
1273 pkt.size= sizeof(AVPicture);
1274 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1275 pkt.flags |= AV_PKT_FLAG_KEY;
1276
1277 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1278 enc->coded_frame = old_frame;
1279 } else {
1280 AVFrame big_picture;
1281
1282 big_picture= *final_picture;
1283 /* better than nothing: use input picture interlaced
1284 settings */
1285 big_picture.interlaced_frame = in_picture->interlaced_frame;
1286 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1287 if(top_field_first == -1)
1288 big_picture.top_field_first = in_picture->top_field_first;
1289 else
1290 big_picture.top_field_first = top_field_first;
1291 }
1292
1293 /* handles sameq here. This is not correct because it may
1294 not be a global option */
1295 if (same_quality) {
1296 big_picture.quality = ist->st->quality;
1297 }else
1298 big_picture.quality = ost->st->quality;
1299 if(!me_threshold)
1300 big_picture.pict_type = 0;
1301 // big_picture.pts = AV_NOPTS_VALUE;
1302 big_picture.pts= ost->sync_opts;
1303 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1304 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1305 ret = avcodec_encode_video(enc,
1306 bit_buffer, bit_buffer_size,
1307 &big_picture);
1308 if (ret < 0) {
1309 fprintf(stderr, "Video encoding failed\n");
1310 av_exit(1);
1311 }
1312
1313 if(ret>0){
1314 pkt.data= bit_buffer;
1315 pkt.size= ret;
1316 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1317 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1318 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1319 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1320 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1321
1322 if(enc->coded_frame->key_frame)
1323 pkt.flags |= AV_PKT_FLAG_KEY;
1324 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1325 *frame_size = ret;
1326 video_size += ret;
1327 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1328 // enc->frame_number-1, ret, enc->pict_type);
1329 /* if two pass, output log */
1330 if (ost->logfile && enc->stats_out) {
1331 fprintf(ost->logfile, "%s", enc->stats_out);
1332 }
1333 }
1334 }
1335 ost->sync_opts++;
1336 ost->frame_number++;
1337 }
1338 }
1339
1340 static double psnr(double d){
1341 return -10.0*log(d)/log(10.0);
1342 }
1343
1344 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1345 int frame_size)
1346 {
1347 AVCodecContext *enc;
1348 int frame_number;
1349 double ti1, bitrate, avg_bitrate;
1350
1351 /* this is executed just the first time do_video_stats is called */
1352 if (!vstats_file) {
1353 vstats_file = fopen(vstats_filename, "w");
1354 if (!vstats_file) {
1355 perror("fopen");
1356 av_exit(1);
1357 }
1358 }
1359
1360 enc = ost->st->codec;
1361 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1362 frame_number = ost->frame_number;
1363 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1364 if (enc->flags&CODEC_FLAG_PSNR)
1365 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1366
1367 fprintf(vstats_file,"f_size= %6d ", frame_size);
1368 /* compute pts value */
1369 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1370 if (ti1 < 0.01)
1371 ti1 = 0.01;
1372
1373 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1374 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1375 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1376 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1377 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1378 }
1379 }
1380
1381 static void print_report(AVFormatContext **output_files,
1382 AVOutputStream **ost_table, int nb_ostreams,
1383 int is_last_report)
1384 {
1385 char buf[1024];
1386 AVOutputStream *ost;
1387 AVFormatContext *oc;
1388 int64_t total_size;
1389 AVCodecContext *enc;
1390 int frame_number, vid, i;
1391 double bitrate, ti1, pts;
1392 static int64_t last_time = -1;
1393 static int qp_histogram[52];
1394
1395 if (!is_last_report) {
1396 int64_t cur_time;
1397 /* display the report every 0.5 seconds */
1398 cur_time = av_gettime();
1399 if (last_time == -1) {
1400 last_time = cur_time;
1401 return;
1402 }
1403 if ((cur_time - last_time) < 500000)
1404 return;
1405 last_time = cur_time;
1406 }
1407
1408
1409 oc = output_files[0];
1410
1411 total_size = url_fsize(oc->pb);
1412 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1413 total_size= url_ftell(oc->pb);
1414
1415 buf[0] = '\0';
1416 ti1 = 1e10;
1417 vid = 0;
1418 for(i=0;i<nb_ostreams;i++) {
1419 ost = ost_table[i];
1420 enc = ost->st->codec;
1421 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1422 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1423 !ost->st->stream_copy ?
1424 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1425 }
1426 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1427 float t = (av_gettime()-timer_start) / 1000000.0;
1428
1429 frame_number = ost->frame_number;
1430 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1431 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1432 !ost->st->stream_copy ?
1433 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1434 if(is_last_report)
1435 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1436 if(qp_hist){
1437 int j;
1438 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1439 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1440 qp_histogram[qp]++;
1441 for(j=0; j<32; j++)
1442 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1443 }
1444 if (enc->flags&CODEC_FLAG_PSNR){
1445 int j;
1446 double error, error_sum=0;
1447 double scale, scale_sum=0;
1448 char type[3]= {'Y','U','V'};
1449 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1450 for(j=0; j<3; j++){
1451 if(is_last_report){
1452 error= enc->error[j];
1453 scale= enc->width*enc->height*255.0*255.0*frame_number;
1454 }else{
1455 error= enc->coded_frame->error[j];
1456 scale= enc->width*enc->height*255.0*255.0;
1457 }
1458 if(j) scale/=4;
1459 error_sum += error;
1460 scale_sum += scale;
1461 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1462 }
1463 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1464 }
1465 vid = 1;
1466 }
1467 /* compute min output value */
1468 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1469 if ((pts < ti1) && (pts > 0))
1470 ti1 = pts;
1471 }
1472 if (ti1 < 0.01)
1473 ti1 = 0.01;
1474
1475 if (verbose || is_last_report) {
1476 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1477
1478 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1479 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1480 (double)total_size / 1024, ti1, bitrate);
1481
1482 if (nb_frames_dup || nb_frames_drop)
1483 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1484 nb_frames_dup, nb_frames_drop);
1485
1486 if (verbose >= 0)
1487 fprintf(stderr, "%s \r", buf);
1488
1489 fflush(stderr);
1490 }
1491
1492 if (is_last_report && verbose >= 0){
1493 int64_t raw= audio_size + video_size + extra_size;
1494 fprintf(stderr, "\n");
1495 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1496 video_size/1024.0,
1497 audio_size/1024.0,
1498 extra_size/1024.0,
1499 100.0*(total_size - raw)/raw
1500 );
1501 }
1502 }
1503
1504 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1505 static int output_packet(AVInputStream *ist, int ist_index,
1506 AVOutputStream **ost_table, int nb_ostreams,
1507 const AVPacket *pkt)
1508 {
1509 AVFormatContext *os;
1510 AVOutputStream *ost;
1511 int ret, i;
1512 int got_picture;
1513 AVFrame picture;
1514 void *buffer_to_free;
1515 static unsigned int samples_size= 0;
1516 AVSubtitle subtitle, *subtitle_to_free;
1517 int got_subtitle;
1518 #if CONFIG_AVFILTER
1519 int frame_available;
1520 #endif
1521
1522 AVPacket avpkt;
1523 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1524
1525 if(ist->next_pts == AV_NOPTS_VALUE)
1526 ist->next_pts= ist->pts;
1527
1528 if (pkt == NULL) {
1529 /* EOF handling */
1530 av_init_packet(&avpkt);
1531 avpkt.data = NULL;
1532 avpkt.size = 0;
1533 goto handle_eof;
1534 } else {
1535 avpkt = *pkt;
1536 }
1537
1538 if(pkt->dts != AV_NOPTS_VALUE)
1539 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1540
1541 //while we have more to decode or while the decoder did output something on EOF
1542 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1543 uint8_t *data_buf, *decoded_data_buf;
1544 int data_size, decoded_data_size;
1545 handle_eof:
1546 ist->pts= ist->next_pts;
1547
1548 if(avpkt.size && avpkt.size != pkt->size &&
1549 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1550 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1551 ist->showed_multi_packet_warning=1;
1552 }
1553
1554 /* decode the packet if needed */
1555 decoded_data_buf = NULL; /* fail safe */
1556 decoded_data_size= 0;
1557 data_buf = avpkt.data;
1558 data_size = avpkt.size;
1559 subtitle_to_free = NULL;
1560 if (ist->decoding_needed) {
1561 switch(ist->st->codec->codec_type) {
1562 case AVMEDIA_TYPE_AUDIO:{
1563 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1564 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1565 av_free(samples);
1566 samples= av_malloc(samples_size);
1567 }
1568 decoded_data_size= samples_size;
1569 /* XXX: could avoid copy if PCM 16 bits with same
1570 endianness as CPU */
1571 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1572 &avpkt);
1573 if (ret < 0)
1574 goto fail_decode;
1575 avpkt.data += ret;
1576 avpkt.size -= ret;
1577 data_size = ret;
1578 /* Some bug in mpeg audio decoder gives */
1579 /* decoded_data_size < 0, it seems they are overflows */
1580 if (decoded_data_size <= 0) {
1581 /* no audio frame */
1582 continue;
1583 }
1584 decoded_data_buf = (uint8_t *)samples;
1585 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1586 (ist->st->codec->sample_rate * ist->st->codec->channels);
1587 break;}
1588 case AVMEDIA_TYPE_VIDEO:
1589 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1590 /* XXX: allocate picture correctly */
1591 avcodec_get_frame_defaults(&picture);
1592
1593 ret = avcodec_decode_video2(ist->st->codec,
1594 &picture, &got_picture, &avpkt);
1595 ist->st->quality= picture.quality;
1596 if (ret < 0)
1597 goto fail_decode;
1598 if (!got_picture) {
1599 /* no picture yet */
1600 goto discard_packet;
1601 }
1602 if (ist->st->codec->time_base.num != 0) {
1603 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1604 ist->next_pts += ((int64_t)AV_TIME_BASE *
1605 ist->st->codec->time_base.num * ticks) /
1606 ist->st->codec->time_base.den;
1607 }
1608 avpkt.size = 0;
1609 break;
1610 case AVMEDIA_TYPE_SUBTITLE:
1611 ret = avcodec_decode_subtitle2(ist->st->codec,
1612 &subtitle, &got_subtitle, &avpkt);
1613 if (ret < 0)
1614 goto fail_decode;
1615 if (!got_subtitle) {
1616 goto discard_packet;
1617 }
1618 subtitle_to_free = &subtitle;
1619 avpkt.size = 0;
1620 break;
1621 default:
1622 goto fail_decode;
1623 }
1624 } else {
1625 switch(ist->st->codec->codec_type) {
1626 case AVMEDIA_TYPE_AUDIO:
1627 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1628 ist->st->codec->sample_rate;
1629 break;
1630 case AVMEDIA_TYPE_VIDEO:
1631 if (ist->st->codec->time_base.num != 0) {
1632 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1633 ist->next_pts += ((int64_t)AV_TIME_BASE *
1634 ist->st->codec->time_base.num * ticks) /
1635 ist->st->codec->time_base.den;
1636 }
1637 break;
1638 }
1639 ret = avpkt.size;
1640 avpkt.size = 0;
1641 }
1642
1643 buffer_to_free = NULL;
1644 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1645 pre_process_video_frame(ist, (AVPicture *)&picture,
1646 &buffer_to_free);
1647 }
1648
1649 #if CONFIG_AVFILTER
1650 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1651 // add it to be filtered
1652 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1653 ist->pts,
1654 ist->st->codec->sample_aspect_ratio);
1655 }
1656 #endif
1657
1658 // preprocess audio (volume)
1659 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1660 if (audio_volume != 256) {
1661 short *volp;
1662 volp = samples;
1663 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1664 int v = ((*volp) * audio_volume + 128) >> 8;
1665 if (v < -32768) v = -32768;
1666 if (v > 32767) v = 32767;
1667 *volp++ = v;
1668 }
1669 }
1670 }
1671
1672 /* frame rate emulation */
1673 if (rate_emu) {
1674 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1675 int64_t now = av_gettime() - ist->start;
1676 if (pts > now)
1677 usleep(pts - now);
1678 }
1679 #if CONFIG_AVFILTER
1680 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1681 !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1682 #endif
1683 /* if output time reached then transcode raw format,
1684 encode packets and output them */
1685 if (start_time == 0 || ist->pts >= start_time)
1686 #if CONFIG_AVFILTER
1687 while (frame_available) {
1688 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1689 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1690 #endif
1691 for(i=0;i<nb_ostreams;i++) {
1692 int frame_size;
1693
1694 ost = ost_table[i];
1695 if (ost->source_index == ist_index) {
1696 os = output_files[ost->file_index];
1697
1698 /* set the input output pts pairs */
1699 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1700
1701 if (ost->encoding_needed) {
1702 assert(ist->decoding_needed);
1703 switch(ost->st->codec->codec_type) {
1704 case AVMEDIA_TYPE_AUDIO:
1705 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1706 break;
1707 case AVMEDIA_TYPE_VIDEO:
1708 #if CONFIG_AVFILTER
1709 ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1710 #endif
1711 do_video_out(os, ost, ist, &picture, &frame_size);
1712 if (vstats_filename && frame_size)
1713 do_video_stats(os, ost, frame_size);
1714 break;
1715 case AVMEDIA_TYPE_SUBTITLE:
1716 do_subtitle_out(os, ost, ist, &subtitle,
1717 pkt->pts);
1718 break;
1719 default:
1720 abort();
1721 }
1722 } else {
1723 AVFrame avframe; //FIXME/XXX remove this
1724 AVPacket opkt;
1725 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1726
1727 av_init_packet(&opkt);
1728
1729 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1730 continue;
1731
1732 /* no reencoding needed : output the packet directly */
1733 /* force the input stream PTS */
1734
1735 avcodec_get_frame_defaults(&avframe);
1736 ost->st->codec->coded_frame= &avframe;
1737 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1738
1739 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1740 audio_size += data_size;
1741 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1742 video_size += data_size;
1743 ost->sync_opts++;
1744 }
1745
1746 opkt.stream_index= ost->index;
1747 if(pkt->pts != AV_NOPTS_VALUE)
1748 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1749 else
1750 opkt.pts= AV_NOPTS_VALUE;
1751
1752 if (pkt->dts == AV_NOPTS_VALUE)
1753 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1754 else
1755 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1756 opkt.dts -= ost_tb_start_time;
1757
1758 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1759 opkt.flags= pkt->flags;
1760
1761 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1762 if( ost->st->codec->codec_id != CODEC_ID_H264
1763 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1764 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1765 ) {
1766 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1767 opkt.destruct= av_destruct_packet;
1768 } else {
1769 opkt.data = data_buf;
1770 opkt.size = data_size;
1771 }
1772
1773 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1774 ost->st->codec->frame_number++;
1775 ost->frame_number++;
1776 av_free_packet(&opkt);
1777 }
1778 }
1779 #if CONFIG_AVFILTER
1780 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1781 ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1782 #endif
1783 }
1784
1785 #if CONFIG_AVFILTER
1786 if(ist->picref)
1787 avfilter_unref_pic(ist->picref);
1788 }
1789 #endif
1790 av_free(buffer_to_free);
1791 /* XXX: allocate the subtitles in the codec ? */
1792 if (subtitle_to_free) {
1793 if (subtitle_to_free->rects != NULL) {
1794 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1795 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1796 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1797 av_freep(&subtitle_to_free->rects[i]);
1798 }
1799 av_freep(&subtitle_to_free->rects);
1800 }
1801 subtitle_to_free->num_rects = 0;
1802 subtitle_to_free = NULL;
1803 }
1804 }
1805 discard_packet:
1806 if (pkt == NULL) {
1807 /* EOF handling */
1808
1809 for(i=0;i<nb_ostreams;i++) {
1810 ost = ost_table[i];
1811 if (ost->source_index == ist_index) {
1812 AVCodecContext *enc= ost->st->codec;
1813 os = output_files[ost->file_index];
1814
1815 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1816 continue;
1817 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1818 continue;
1819
1820 if (ost->encoding_needed) {
1821 for(;;) {
1822 AVPacket pkt;
1823 int fifo_bytes;
1824 av_init_packet(&pkt);
1825 pkt.stream_index= ost->index;
1826
1827 switch(ost->st->codec->codec_type) {
1828 case AVMEDIA_TYPE_AUDIO:
1829 fifo_bytes = av_fifo_size(ost->fifo);
1830 ret = 0;
1831 /* encode any samples remaining in fifo */
1832 if (fifo_bytes > 0) {
1833 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1834 int fs_tmp = enc->frame_size;
1835
1836 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1837 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1838 enc->frame_size = fifo_bytes / (osize * enc->channels);
1839 } else { /* pad */
1840 int frame_bytes = enc->frame_size*osize*enc->channels;
1841 if (allocated_audio_buf_size < frame_bytes)
1842 av_exit(1);
1843 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1844 }
1845
1846 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1847 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1848 ost->st->time_base.num, enc->sample_rate);
1849 enc->frame_size = fs_tmp;
1850 }
1851 if(ret <= 0) {
1852 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1853 }
1854 if (ret < 0) {
1855 fprintf(stderr, "Audio encoding failed\n");
1856 av_exit(1);
1857 }
1858 audio_size += ret;
1859 pkt.flags |= AV_PKT_FLAG_KEY;
1860 break;
1861 case AVMEDIA_TYPE_VIDEO:
1862 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1863 if (ret < 0) {
1864 fprintf(stderr, "Video encoding failed\n");
1865 av_exit(1);
1866 }
1867 video_size += ret;
1868 if(enc->coded_frame && enc->coded_frame->key_frame)
1869 pkt.flags |= AV_PKT_FLAG_KEY;
1870 if (ost->logfile && enc->stats_out) {
1871 fprintf(ost->logfile, "%s", enc->stats_out);
1872 }
1873 break;
1874 default:
1875 ret=-1;
1876 }
1877
1878 if(ret<=0)
1879 break;
1880 pkt.data= bit_buffer;
1881 pkt.size= ret;
1882 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1883 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1884 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1885 }
1886 }
1887 }
1888 }
1889 }
1890
1891 return 0;
1892 fail_decode:
1893 return -1;
1894 }
1895
1896 static void print_sdp(AVFormatContext **avc, int n)
1897 {
1898 char sdp[2048];
1899
1900 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1901 printf("SDP:\n%s\n", sdp);
1902 fflush(stdout);
1903 }
1904
1905 static int copy_chapters(int infile, int outfile)
1906 {
1907 AVFormatContext *is = input_files[infile];
1908 AVFormatContext *os = output_files[outfile];
1909 int i;
1910
1911 for (i = 0; i < is->nb_chapters; i++) {
1912 AVChapter *in_ch = is->chapters[i], *out_ch;
1913 AVMetadataTag *t = NULL;
1914 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1915 AV_TIME_BASE_Q, in_ch->time_base);
1916 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1917 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1918
1919
1920 if (in_ch->end < ts_off)
1921 continue;
1922 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1923 break;
1924
1925 out_ch = av_mallocz(sizeof(AVChapter));
1926 if (!out_ch)
1927 return AVERROR(ENOMEM);
1928
1929 out_ch->id = in_ch->id;
1930 out_ch->time_base = in_ch->time_base;
1931 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1932 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1933
1934 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1935 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1936
1937 os->nb_chapters++;
1938 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1939 if (!os->chapters)
1940 return AVERROR(ENOMEM);
1941 os->chapters[os->nb_chapters - 1] = out_ch;
1942 }
1943 return 0;
1944 }
1945
1946 /*
1947 * The following code is the main loop of the file converter
1948 */
1949 static int av_transcode(AVFormatContext **output_files,
1950 int nb_output_files,
1951 AVFormatContext **input_files,
1952 int nb_input_files,
1953 AVStreamMap *stream_maps, int nb_stream_maps)
1954 {
1955 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1956 AVFormatContext *is, *os;
1957 AVCodecContext *codec, *icodec;
1958 AVOutputStream *ost, **ost_table = NULL;
1959 AVInputStream *ist, **ist_table = NULL;
1960 AVInputFile *file_table;
1961 char error[1024];
1962 int key;
1963 int want_sdp = 1;
1964 uint8_t no_packet[MAX_FILES]={0};
1965 int no_packet_count=0;
1966
1967 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1968 if (!file_table)
1969 goto fail;
1970
1971 /* input stream init */
1972 j = 0;
1973 for(i=0;i<nb_input_files;i++) {
1974 is = input_files[i];
1975 file_table[i].ist_index = j;
1976 file_table[i].nb_streams = is->nb_streams;
1977 j += is->nb_streams;
1978 }
1979 nb_istreams = j;
1980
1981 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1982 if (!ist_table)
1983 goto fail;
1984
1985 for(i=0;i<nb_istreams;i++) {
1986 ist = av_mallocz(sizeof(AVInputStream));
1987 if (!ist)
1988 goto fail;
1989 ist_table[i] = ist;
1990 }
1991 j = 0;
1992 for(i=0;i<nb_input_files;i++) {
1993 is = input_files[i];
1994 for(k=0;k<is->nb_streams;k++) {
1995 ist = ist_table[j++];
1996 ist->st = is->streams[k];
1997 ist->file_index = i;
1998 ist->index = k;
1999 ist->discard = 1; /* the stream is discarded by default
2000 (changed later) */
2001
2002 if (rate_emu) {
2003 ist->start = av_gettime();
2004 }
2005 }
2006 }
2007
2008 /* output stream init */
2009 nb_ostreams = 0;
2010 for(i=0;i<nb_output_files;i++) {
2011 os = output_files[i];
2012 if (!os->nb_streams) {
2013 dump_format(output_files[i], i, output_files[i]->filename, 1);
2014 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2015 av_exit(1);
2016 }
2017 nb_ostreams += os->nb_streams;
2018 }
2019 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2020 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2021 av_exit(1);
2022 }
2023
2024 /* Sanity check the mapping args -- do the input files & streams exist? */
2025 for(i=0;i<nb_stream_maps;i++) {
2026 int fi = stream_maps[i].file_index;
2027 int si = stream_maps[i].stream_index;
2028
2029 if (fi < 0 || fi > nb_input_files - 1 ||
2030 si < 0 || si > file_table[fi].nb_streams - 1) {
2031 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2032 av_exit(1);
2033 }
2034 fi = stream_maps[i].sync_file_index;
2035 si = stream_maps[i].sync_stream_index;
2036 if (fi < 0 || fi > nb_input_files - 1 ||
2037 si < 0 || si > file_table[fi].nb_streams - 1) {
2038 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2039 av_exit(1);
2040 }
2041 }
2042
2043 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2044 if (!ost_table)
2045 goto fail;
2046 for(i=0;i<nb_ostreams;i++) {
2047 ost = av_mallocz(sizeof(AVOutputStream));
2048 if (!ost)
2049 goto fail;
2050 ost_table[i] = ost;
2051 }
2052
2053 n = 0;
2054 for(k=0;k<nb_output_files;k++) {
2055 os = output_files[k];
2056 for(i=0;i<os->nb_streams;i++,n++) {
2057 int found;
2058 ost = ost_table[n];
2059 ost->file_index = k;
2060 ost->index = i;
2061 ost->st = os->streams[i];
2062 if (nb_stream_maps > 0) {
2063 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2064 stream_maps[n].stream_index;
2065
2066 /* Sanity check that the stream types match */
2067 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2068 int i= ost->file_index;
2069 dump_format(output_files[i], i, output_files[i]->filename, 1);
2070 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2071 stream_maps[n].file_index, stream_maps[n].stream_index,
2072 ost->file_index, ost->index);
2073 av_exit(1);
2074 }
2075
2076 } else {
2077 int best_nb_frames=-1;
2078 /* get corresponding input stream index : we select the first one with the right type */
2079 found = 0;
2080 for(j=0;j<nb_istreams;j++) {
2081 int skip=0;
2082 ist = ist_table[j];
2083 if(opt_programid){
2084 int pi,si;
2085 AVFormatContext *f= input_files[ ist->file_index ];
2086 skip=1;
2087 for(pi=0; pi<f->nb_programs; pi++){
2088 AVProgram *p= f->programs[pi];
2089 if(p->id == opt_programid)
2090 for(si=0; si<p->nb_stream_indexes; si++){
2091 if(f->streams[ p->stream_index[si] ] == ist->st)
2092 skip=0;
2093 }
2094 }
2095 }
2096 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2097 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2098 if(best_nb_frames < ist->st->codec_info_nb_frames){
2099 best_nb_frames= ist->st->codec_info_nb_frames;
2100 ost->source_index = j;
2101 found = 1;
2102 }
2103 }
2104 }
2105
2106 if (!found) {
2107 if(! opt_programid) {
2108 /* try again and reuse existing stream */
2109 for(j=0;j<nb_istreams;j++) {
2110 ist = ist_table[j];
2111 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2112 && ist->st->discard != AVDISCARD_ALL) {
2113 ost->source_index = j;
2114 found = 1;
2115 }
2116 }
2117 }
2118 if (!found) {
2119 int i= ost->file_index;
2120 dump_format(output_files[i], i, output_files[i]->filename, 1);
2121 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2122 ost->file_index, ost->index);
2123 av_exit(1);
2124 }
2125 }
2126 }
2127 ist = ist_table[ost->source_index];
2128 ist->discard = 0;
2129 ost->sync_ist = (nb_stream_maps > 0) ?
2130 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2131 stream_maps[n].sync_stream_index] : ist;
2132 }
2133 }
2134
2135 /* for each output stream, we compute the right encoding parameters */
2136 for(i=0;i<nb_ostreams;i++) {
2137 AVMetadataTag *t = NULL;
2138 ost = ost_table[i];
2139 os = output_files[ost->file_index];
2140 ist = ist_table[ost->source_index];
2141
2142 codec = ost->st->codec;
2143 icodec = ist->st->codec;
2144
2145 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2146 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2147 }
2148
2149 ost->st->disposition = ist->st->disposition;
2150 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2151 codec->chroma_sample_location = icodec->chroma_sample_location;
2152
2153 if (ost->st->stream_copy) {
2154 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2155
2156 if (extra_size > INT_MAX)
2157 goto fail;
2158
2159 /* if stream_copy is selected, no need to decode or encode */
2160 codec->codec_id = icodec->codec_id;
2161 codec->codec_type = icodec->codec_type;
2162
2163 if(!codec->codec_tag){
2164 if( !os->oformat->codec_tag
2165 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2166 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2167 codec->codec_tag = icodec->codec_tag;
2168 }
2169
2170 codec->bit_rate = icodec->bit_rate;
2171 codec->extradata= av_mallocz(extra_size);
2172 if (!codec->extradata)
2173 goto fail;
2174 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2175 codec->extradata_size= icodec->extradata_size;
2176 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2177 codec->time_base = icodec->time_base;
2178 codec->time_base.num *= icodec->ticks_per_frame;
2179 }else
2180 codec->time_base = ist->st->time_base;
2181 switch(codec->codec_type) {
2182 case AVMEDIA_TYPE_AUDIO:
2183 if(audio_volume != 256) {
2184 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2185 av_exit(1);
2186 }
2187 codec->channel_layout = icodec->channel_layout;
2188 codec->sample_rate = icodec->sample_rate;
2189 codec->channels = icodec->channels;
2190 codec->frame_size = icodec->frame_size;
2191 codec->block_align= icodec->block_align;
2192 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2193 codec->block_align= 0;
2194 if(codec->codec_id == CODEC_ID_AC3)
2195 codec->block_align= 0;
2196 break;
2197 case AVMEDIA_TYPE_VIDEO:
2198 codec->pix_fmt = icodec->pix_fmt;
2199 codec->width = icodec->width;
2200 codec->height = icodec->height;
2201 codec->has_b_frames = icodec->has_b_frames;
2202 break;
2203 case AVMEDIA_TYPE_SUBTITLE:
2204 codec->width = icodec->width;
2205 codec->height = icodec->height;
2206 break;
2207 default:
2208 abort();
2209 }
2210 } else {
2211 switch(codec->codec_type) {
2212 case AVMEDIA_TYPE_AUDIO:
2213 ost->fifo= av_fifo_alloc(1024);
2214 if(!ost->fifo)
2215 goto fail;
2216 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2217 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2218 icodec->request_channels = codec->channels;
2219 ist->decoding_needed = 1;
2220 ost->encoding_needed = 1;
2221 break;
2222 case AVMEDIA_TYPE_VIDEO:
2223 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2224 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2225 av_exit(1);
2226 }
2227 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2228 ost->video_resample = ((codec->width != icodec->width -
2229 (frame_leftBand + frame_rightBand)) ||
2230 (codec->height != icodec->height -
2231 (frame_topBand + frame_bottomBand)) ||
2232 (codec->pix_fmt != icodec->pix_fmt));
2233 if (ost->video_crop) {
2234 ost->topBand = ost->original_topBand = frame_topBand;
2235 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2236 ost->leftBand = ost->original_leftBand = frame_leftBand;
2237 ost->rightBand = ost->original_rightBand = frame_rightBand;
2238 }
2239 if (ost->video_resample) {
2240 avcodec_get_frame_defaults(&ost->pict_tmp);
2241 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2242 codec->width, codec->height)) {
2243 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2244 av_exit(1);
2245 }
2246 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2247 ost->img_resample_ctx = sws_getContext(
2248 icodec->width - (frame_leftBand + frame_rightBand),
2249 icodec->height - (frame_topBand + frame_bottomBand),
2250 icodec->pix_fmt,
2251 codec->width,
2252 codec->height,
2253 codec->pix_fmt,
2254 sws_flags, NULL, NULL, NULL);
2255 if (ost->img_resample_ctx == NULL) {
2256 fprintf(stderr, "Cannot get resampling context\n");
2257 av_exit(1);
2258 }
2259
2260 #if !CONFIG_AVFILTER
2261 ost->original_height = icodec->height;
2262 ost->original_width = icodec->width;
2263 #endif
2264 codec->bits_per_raw_sample= 0;
2265 }
2266 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
2267 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
2268 ost->resample_pix_fmt= icodec->pix_fmt;
2269 ost->encoding_needed = 1;
2270 ist->decoding_needed = 1;
2271
2272 #if CONFIG_AVFILTER
2273 if (configure_filters(ist, ost)) {
2274 fprintf(stderr, "Error opening filters!\n");
2275 exit(1);
2276 }
2277 #endif
2278 break;
2279 case AVMEDIA_TYPE_SUBTITLE:
2280 ost->encoding_needed = 1;
2281 ist->decoding_needed = 1;
2282 break;
2283 default:
2284 abort();
2285 break;
2286 }
2287 /* two pass mode */
2288 if (ost->encoding_needed &&
2289 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2290 char logfilename[1024];
2291 FILE *f;
2292
2293 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2294 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2295 i);
2296 if (codec->flags & CODEC_FLAG_PASS1) {
2297 f = fopen(logfilename, "wb");
2298 if (!f) {
2299 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2300 av_exit(1);
2301 }
2302 ost->logfile = f;
2303 } else {
2304 char *logbuffer;
2305 size_t logbuffer_size;
2306 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2307 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2308 av_exit(1);
2309 }
2310 codec->stats_in = logbuffer;
2311 }
2312 }
2313 }
2314 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2315 int size= codec->width * codec->height;
2316 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2317 }
2318 }
2319
2320 if (!bit_buffer)
2321 bit_buffer = av_malloc(bit_buffer_size);
2322 if (!bit_buffer) {
2323 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2324 bit_buffer_size);
2325 ret = AVERROR(ENOMEM);
2326 goto fail;
2327 }
2328
2329 /* open each encoder */
2330 for(i=0;i<nb_ostreams;i++) {
2331 ost = ost_table[i];
2332 if (ost->encoding_needed) {
2333 AVCodec *codec = output_codecs[i];
2334 if (!codec)
2335 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2336 if (!codec) {
2337 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2338 ost->st->codec->codec_id, ost->file_index, ost->index);
2339 ret = AVERROR(EINVAL);
2340 goto dump_format;
2341 }
2342 if (avcodec_open(ost->st->codec, codec) < 0) {
2343 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2344 ost->file_index, ost->index);
2345 ret = AVERROR(EINVAL);
2346 goto dump_format;
2347 }
2348 extra_size += ost->st->codec->extradata_size;
2349 }
2350 }
2351
2352 /* open each decoder */
2353 for(i=0;i<nb_istreams;i++) {
2354 ist = ist_table[i];
2355 if (ist->decoding_needed) {
2356 AVCodec *codec = input_codecs[i];
2357 if (!codec)
2358 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2359 if (!codec) {
2360 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2361 ist->st->codec->codec_id, ist->file_index, ist->index);
2362 ret = AVERROR(EINVAL);
2363 goto dump_format;
2364 }
2365 if (avcodec_open(ist->st->codec, codec) < 0) {
2366 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2367 ist->file_index, ist->index);
2368 ret = AVERROR(EINVAL);
2369 goto dump_format;
2370 }
2371 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2372 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2373 }
2374 }
2375
2376 /* init pts */
2377 for(i=0;i<nb_istreams;i++) {
2378 AVStream *st;
2379 ist = ist_table[i];
2380 st= ist->st;
2381 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2382 ist->next_pts = AV_NOPTS_VALUE;
2383 ist->is_start = 1;
2384 }
2385
2386 /* set meta data information from input file if required */
2387 for (i=0;i<nb_meta_data_maps;i++) {
2388 AVFormatContext *out_file;
2389 AVFormatContext *in_file;
2390 AVMetadataTag *mtag;
2391
2392 int out_file_index = meta_data_maps[i].out_file;
2393 int in_file_index = meta_data_maps[i].in_file;
2394 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2395 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2396 out_file_index, out_file_index, in_file_index);
2397 ret = AVERROR(EINVAL);
2398 goto dump_format;
2399 }
2400 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2401 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2402 in_file_index, out_file_index, in_file_index);
2403 ret = AVERROR(EINVAL);
2404 goto dump_format;
2405 }
2406
2407 out_file = output_files[out_file_index];
2408 in_file = input_files[in_file_index];
2409
2410
2411 mtag=NULL;
2412 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2413 av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2414 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2415 in_file->iformat->metadata_conv);
2416 }
2417
2418 /* copy chapters from the first input file that has them*/
2419 for (i = 0; i < nb_input_files; i++) {
2420 if (!input_files[i]->nb_chapters)
2421 continue;
2422
2423 for (j = 0; j < nb_output_files; j++)
2424 if ((ret = copy_chapters(i, j)) < 0)
2425 goto dump_format;
2426 }
2427
2428 /* open files and write file headers */
2429 for(i=0;i<nb_output_files;i++) {
2430 os = output_files[i];
2431 if (av_write_header(os) < 0) {
2432 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2433 ret = AVERROR(EINVAL);
2434 goto dump_format;
2435 }
2436 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2437 want_sdp = 0;
2438 }
2439 }
2440
2441 dump_format:
2442 /* dump the file output parameters - cannot be done before in case
2443 of stream copy */
2444 for(i=0;i<nb_output_files;i++) {
2445 dump_format(output_files[i], i, output_files[i]->filename, 1);
2446 }
2447
2448 /* dump the stream mapping */
2449 if (verbose >= 0) {
2450 fprintf(stderr, "Stream mapping:\n");
2451 for(i=0;i<nb_ostreams;i++) {
2452 ost = ost_table[i];
2453 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2454 ist_table[ost->source_index]->file_index,
2455 ist_table[ost->source_index]->index,
2456 ost->file_index,
2457 ost->index);
2458 if (ost->sync_ist != ist_table[ost->source_index])
2459 fprintf(stderr, " [sync #%d.%d]",
2460 ost->sync_ist->file_index,
2461 ost->sync_ist->index);
2462 fprintf(stderr, "\n");
2463 }
2464 }
2465
2466 if (ret) {
2467 fprintf(stderr, "%s\n", error);
2468 goto fail;
2469 }
2470
2471 if (want_sdp) {
2472 print_sdp(output_files, nb_output_files);
2473 }
2474
2475 if (!using_stdin && verbose >= 0) {
2476 fprintf(stderr, "Press [q] to stop encoding\n");
2477 url_set_interrupt_cb(decode_interrupt_cb);
2478 }
2479 term_init();
2480
2481 timer_start = av_gettime();
2482
2483 for(; received_sigterm == 0;) {
2484 int file_index, ist_index;
2485 AVPacket pkt;
2486 double ipts_min;
2487 double opts_min;
2488
2489 redo:
2490 ipts_min= 1e100;
2491 opts_min= 1e100;
2492 /* if 'q' pressed, exits */
2493 if (!using_stdin) {
2494 if (q_pressed)
2495 break;
2496 /* read_key() returns 0 on EOF */
2497 key = read_key();
2498 if (key == 'q')
2499 break;
2500 }
2501
2502 /* select the stream that we must read now by looking at the
2503 smallest output pts */
2504 file_index = -1;
2505 for(i=0;i<nb_ostreams;i++) {
2506 double ipts, opts;
2507 ost = ost_table[i];
2508 os = output_files[ost->file_index];
2509 ist = ist_table[ost->source_index];
2510 if(ist->is_past_recording_time || no_packet[ist->file_index])
2511 continue;
2512 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2513 ipts = (double)ist->pts;
2514 if (!file_table[ist->file_index].eof_reached){
2515 if(ipts < ipts_min) {
2516 ipts_min = ipts;
2517 if(input_sync ) file_index = ist->file_index;
2518 }
2519 if(opts < opts_min) {
2520 opts_min = opts;
2521 if(!input_sync) file_index = ist->file_index;
2522 }
2523 }
2524 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2525 file_index= -1;
2526 break;
2527 }
2528 }
2529 /* if none, if is finished */
2530 if (file_index < 0) {
2531 if(no_packet_count){
2532 no_packet_count=0;
2533 memset(no_packet, 0, sizeof(no_packet));
2534 usleep(10000);
2535 continue;
2536 }
2537 break;
2538 }
2539
2540 /* finish if limit size exhausted */
2541 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2542 break;
2543
2544 /* read a frame from it and output it in the fifo */
2545 is = input_files[file_index];
2546 ret= av_read_frame(is, &pkt);
2547 if(ret == AVERROR(EAGAIN)){
2548 no_packet[file_index]=1;
2549 no_packet_count++;
2550 continue;
2551 }
2552 if (ret < 0) {
2553 file_table[file_index].eof_reached = 1;
2554 if (opt_shortest)
2555 break;
2556 else
2557 continue;
2558 }
2559
2560 no_packet_count=0;
2561 memset(no_packet, 0, sizeof(no_packet));
2562
2563 if (do_pkt_dump) {
2564 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2565 }
2566 /* the following test is needed in case new streams appear
2567 dynamically in stream : we ignore them */
2568 if (pkt.stream_index >= file_table[file_index].nb_streams)
2569 goto discard_packet;
2570 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2571 ist = ist_table[ist_index];
2572 if (ist->discard)
2573 goto discard_packet;
2574
2575 if (pkt.dts != AV_NOPTS_VALUE)
2576 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2577 if (pkt.pts != AV_NOPTS_VALUE)
2578 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2579
2580 if(input_files_ts_scale[file_index][pkt.stream_index]){
2581 if(pkt.pts != AV_NOPTS_VALUE)
2582 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2583 if(pkt.dts != AV_NOPTS_VALUE)
2584 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2585 }
2586
2587 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2588 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2589 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2590 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2591 int64_t delta= pkt_dts - ist->next_pts;
2592 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2593 input_files_ts_offset[ist->file_index]-= delta;
2594 if (verbose > 2)
2595 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2596 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2597 if(pkt.pts != AV_NOPTS_VALUE)
2598 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2599 }
2600 }
2601
2602 /* finish if recording time exhausted */
2603 if (recording_time != INT64_MAX &&
2604 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2605 ist->is_past_recording_time = 1;
2606 goto discard_packet;
2607 }
2608
2609 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2610 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2611
2612 if (verbose >= 0)
2613 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2614 ist->file_index, ist->index);
2615 if (exit_on_error)
2616 av_exit(1);
2617 av_free_packet(&pkt);
2618 goto redo;
2619 }
2620
2621 discard_packet:
2622 av_free_packet(&pkt);
2623
2624 /* dump report by using the output first video and audio streams */
2625 print_report(output_files, ost_table, nb_ostreams, 0);
2626 }
2627
2628 /* at the end of stream, we must flush the decoder buffers */
2629 for(i=0;i<nb_istreams;i++) {
2630 ist = ist_table[i];
2631 if (ist->decoding_needed) {
2632 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2633 }
2634 }
2635
2636 term_exit();
2637
2638 /* write the trailer if needed and close file */
2639 for(i=0;i<nb_output_files;i++) {
2640 os = output_files[i];
2641 av_write_trailer(os);
2642 }
2643
2644 /* dump report by using the first video and audio streams */
2645 print_report(output_files, ost_table, nb_ostreams, 1);
2646
2647 /* close each encoder */
2648 for(i=0;i<nb_ostreams;i++) {
2649 ost = ost_table[i];
2650 if (ost->encoding_needed) {
2651 av_freep(&ost->st->codec->stats_in);
2652 avcodec_close(ost->st->codec);
2653 }
2654 }
2655
2656 /* close each decoder */
2657 for(i=0;i<nb_istreams;i++) {
2658 ist = ist_table[i];
2659 if (ist->decoding_needed) {
2660 avcodec_close(ist->st->codec);
2661 }
2662 }
2663 #if CONFIG_AVFILTER
2664 if (graph) {
2665 avfilter_graph_destroy(graph);
2666 av_freep(&graph);
2667 }
2668 #endif
2669
2670 /* finished ! */
2671 ret = 0;
2672
2673 fail:
2674 av_freep(&bit_buffer);
2675 av_free(file_table);
2676
2677 if (ist_table) {
2678 for(i=0;i<nb_istreams;i++) {
2679 ist = ist_table[i];
2680 av_free(ist);
2681 }
2682 av_free(ist_table);
2683 }
2684 if (ost_table) {
2685 for(i=0;i<nb_ostreams;i++) {
2686 ost = ost_table[i];
2687 if (ost) {
2688 if (ost->st->stream_copy)
2689 av_freep(&ost->st->codec->extradata);
2690 if (ost->logfile) {
2691 fclose(ost->logfile);
2692 ost->logfile = NULL;
2693 }
2694 av_fifo_free(ost->fifo); /* works even if fifo is not
2695 initialized but set to zero */
2696 av_free(ost->pict_tmp.data[0]);
2697 if (ost->video_resample)
2698 sws_freeContext(ost->img_resample_ctx);
2699 if (ost->resample)
2700 audio_resample_close(ost->resample);
2701 if (ost->reformat_ctx)
2702 av_audio_convert_free(ost->reformat_ctx);
2703 av_free(ost);
2704 }
2705 }
2706 av_free(ost_table);
2707 }
2708 return ret;
2709 }
2710
2711 static void opt_format(const char *arg)
2712 {
2713 /* compatibility stuff for pgmyuv */
2714 if (!strcmp(arg, "pgmyuv")) {
2715 pgmyuv_compatibility_hack=1;
2716 // opt_image_format(arg);
2717 arg = "image2";
2718 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2719 }
2720
2721 last_asked_format = arg;
2722 }
2723
2724 static void opt_video_rc_override_string(const char *arg)
2725 {
2726 video_rc_override_string = arg;
2727 }
2728
2729 static int opt_me_threshold(const char *opt, const char *arg)
2730 {
2731 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2732 return 0;
2733 }
2734
2735 static int opt_verbose(const char *opt, const char *arg)
2736 {
2737 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2738 return 0;
2739 }
2740
2741 static int opt_frame_rate(const char *opt, const char *arg)
2742 {
2743 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2744 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2745 av_exit(1);
2746 }
2747 return 0;
2748 }
2749
2750 static int opt_bitrate(const char *opt, const char *arg)
2751 {
2752 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2753
2754 opt_default(opt, arg);
2755
2756 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2757 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2758
2759 return 0;
2760 }
2761
2762 static void opt_frame_crop_top(const char *arg)
2763 {
2764 frame_topBand = atoi(arg);
2765 if (frame_topBand < 0) {
2766 fprintf(stderr, "Incorrect top crop size\n");
2767 av_exit(1);
2768 }
2769 if ((frame_topBand) >= frame_height){
2770 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2771 av_exit(1);
2772 }
2773 frame_height -= frame_topBand;
2774 }
2775
2776 static void opt_frame_crop_bottom(const char *arg)
2777 {
2778 frame_bottomBand = atoi(arg);
2779 if (frame_bottomBand < 0) {
2780 fprintf(stderr, "Incorrect bottom crop size\n");
2781 av_exit(1);
2782 }
2783 if ((frame_bottomBand) >= frame_height){
2784 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2785 av_exit(1);
2786 }
2787 frame_height -= frame_bottomBand;
2788 }
2789
2790 static void opt_frame_crop_left(const char *arg)
2791 {
2792 frame_leftBand = atoi(arg);
2793 if (frame_leftBand < 0) {
2794 fprintf(stderr, "Incorrect left crop size\n");
2795 av_exit(1);
2796 }
2797 if ((frame_leftBand) >= frame_width){
2798 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2799 av_exit(1);
2800 }
2801 frame_width -= frame_leftBand;
2802 }
2803
2804 static void opt_frame_crop_right(const char *arg)
2805 {
2806 frame_rightBand = atoi(arg);
2807 if (frame_rightBand < 0) {
2808 fprintf(stderr, "Incorrect right crop size\n");
2809 av_exit(1);
2810 }
2811 if ((frame_rightBand) >= frame_width){
2812 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2813 av_exit(1);
2814 }
2815 frame_width -= frame_rightBand;
2816 }
2817
2818 static void opt_frame_size(const char *arg)
2819 {
2820 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2821 fprintf(stderr, "Incorrect frame size\n");
2822 av_exit(1);
2823 }
2824 }
2825
2826 static void opt_pad(const char *arg) {
2827 fprintf(stderr, "Please use vf=pad\n");
2828 av_exit(1);
2829 }
2830
2831 static void opt_frame_pix_fmt(const char *arg)
2832 {
2833 if (strcmp(arg, "list")) {
2834 frame_pix_fmt = av_get_pix_fmt(arg);
2835 if (frame_pix_fmt == PIX_FMT_NONE) {
2836 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2837 av_exit(1);
2838 }
2839 } else {
2840 show_pix_fmts();
2841 av_exit(0);
2842 }
2843 }
2844
2845 static void opt_frame_aspect_ratio(const char *arg)
2846 {
2847 int x = 0, y = 0;
2848 double ar = 0;
2849 const char *p;
2850 char *end;
2851
2852 p = strchr(arg, ':');
2853 if (p) {
2854 x = strtol(arg, &end, 10);
2855 if (end == p)
2856 y = strtol(end+1, &end, 10);
2857 if (x > 0 && y > 0)
2858 ar = (double)x / (double)y;
2859 } else
2860 ar = strtod(arg, NULL);
2861
2862 if (!ar) {
2863 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2864 av_exit(1);
2865 }
2866 frame_aspect_ratio = ar;
2867 }
2868
2869 static int opt_metadata(const char *opt, const char *arg)
2870 {
2871 char *mid= strchr(arg, '=');
2872
2873 if(!mid){
2874 fprintf(stderr, "Missing =\n");
2875 av_exit(1);
2876 }
2877 *mid++= 0;
2878
2879 metadata_count++;
2880 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2881 metadata[metadata_count-1].key = av_strdup(arg);
2882 metadata[metadata_count-1].value= av_strdup(mid);
2883
2884 return 0;
2885 }
2886
2887 static void opt_qscale(const char *arg)
2888 {
2889 video_qscale = atof(arg);
2890 if (video_qscale <= 0 ||
2891 video_qscale > 255) {
2892 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2893 av_exit(1);
2894 }
2895 }
2896
2897 static void opt_top_field_first(const char *arg)
2898 {
2899 top_field_first= atoi(arg);
2900 }
2901
2902 static int opt_thread_count(const char *opt, const char *arg)
2903 {
2904 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2905 #if !HAVE_THREADS
2906 if (verbose >= 0)
2907 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2908 #endif
2909 return 0;
2910 }
2911
2912 static void opt_audio_sample_fmt(const char *arg)
2913 {
2914 if (strcmp(arg, "list"))
2915 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2916 else {
2917 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2918 av_exit(0);
2919 }
2920 }
2921
2922 static int opt_audio_rate(const char *opt, const char *arg)
2923 {
2924 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2925 return 0;
2926 }
2927
2928 static int opt_audio_channels(const char *opt, const char *arg)
2929 {
2930 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2931 return 0;
2932 }
2933
2934 static void opt_video_channel(const char *arg)
2935 {
2936 video_channel = strtol(arg, NULL, 0);
2937 }
2938
2939 static void opt_video_standard(const char *arg)
2940 {
2941 video_standard = av_strdup(arg);
2942 }
2943
2944 static void opt_codec(int *pstream_copy, char **pcodec_name,
2945 int codec_type, const char *arg)
2946 {
2947 av_freep(pcodec_name);
2948 if (!strcmp(arg, "copy")) {
2949 *pstream_copy = 1;
2950 } else {
2951 *pcodec_name = av_strdup(arg);
2952 }
2953 }
2954
2955 static void opt_audio_codec(const char *arg)
2956 {
2957 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2958 }
2959
2960 static void opt_audio_tag(const char *arg)
2961 {
2962 char *tail;
2963 audio_codec_tag= strtol(arg, &tail, 0);
2964
2965 if(!tail || *tail)
2966 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2967 }
2968
2969 static void opt_video_tag(const char *arg)
2970 {
2971 char *tail;
2972 video_codec_tag= strtol(arg, &tail, 0);
2973
2974 if(!tail || *tail)
2975 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2976 }
2977
2978 static void opt_video_codec(const char *arg)
2979 {
2980 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2981 }
2982
2983 static void opt_subtitle_codec(const char *arg)
2984 {
2985 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2986 }
2987
2988 static void opt_subtitle_tag(const char *arg)
2989 {
2990 char *tail;
2991 subtitle_codec_tag= strtol(arg, &tail, 0);
2992
2993 if(!tail || *tail)
2994 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2995 }
2996
2997 static void opt_map(const char *arg)
2998 {
2999 AVStreamMap *m;
3000 char *p;
3001
3002 m = &stream_maps[nb_stream_maps++];
3003
3004 m->file_index = strtol(arg, &p, 0);
3005 if (*p)
3006 p++;
3007
3008 m->stream_index = strtol(p, &p, 0);
3009 if (*p) {
3010 p++;
3011 m->sync_file_index = strtol(p, &p, 0);
3012 if (*p)
3013 p++;
3014 m->sync_stream_index = strtol(p, &p, 0);
3015 } else {
3016 m->sync_file_index = m->file_index;
3017 m->sync_stream_index = m->stream_index;
3018 }
3019 }
3020
3021 static void opt_map_meta_data(const char *arg)
3022 {
3023 AVMetaDataMap *m;
3024 char *p;
3025
3026 m = &meta_data_maps[nb_meta_data_maps++];
3027
3028 m->out_file = strtol(arg, &p, 0);
3029 if (*p)
3030 p++;
3031
3032 m->in_file = strtol(p, &p, 0);
3033 }
3034
3035 static void opt_input_ts_scale(const char *arg)
3036 {
3037 unsigned int stream;
3038 double scale;
3039 char *p;
3040
3041 stream = strtol(arg, &p, 0);
3042 if (*p)
3043 p++;
3044 scale= strtod(p, &p);
3045
3046 if(stream >= MAX_STREAMS)
3047 av_exit(1);
3048
3049 input_files_ts_scale[nb_input_files][stream]= scale;
3050 }
3051
3052 static int opt_recording_time(const char *opt, const char *arg)
3053 {
3054 recording_time = parse_time_or_die(opt, arg, 1);
3055 return 0;
3056 }
3057
3058 static int opt_start_time(const char *opt, const char *arg)
3059 {
3060 start_time = parse_time_or_die(opt, arg, 1);
3061 return 0;
3062 }
3063
3064 static int opt_rec_timestamp(const char *opt, const char *arg)
3065 {
3066 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3067 return 0;
3068 }
3069
3070 static int opt_input_ts_offset(const char *opt, const char *arg)
3071 {
3072 input_ts_offset = parse_time_or_die(opt, arg, 1);
3073 return 0;
3074 }
3075
3076 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3077 {
3078 const char *codec_string = encoder ? "encoder" : "decoder";
3079 AVCodec *codec;
3080
3081 if(!name)
3082 return CODEC_ID_NONE;
3083 codec = encoder ?
3084 avcodec_find_encoder_by_name(name) :
3085 avcodec_find_decoder_by_name(name);
3086 if(!codec) {
3087 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3088 av_exit(1);
3089 }
3090 if(codec->type != type) {
3091 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3092 av_exit(1);
3093 }
3094 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3095 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3096 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3097 "results.\nAdd '-strict experimental' if you want to use it.\n",
3098 codec_string, codec->name);
3099 codec = encoder ?
3100 avcodec_find_encoder(codec->id) :
3101 avcodec_find_decoder(codec->id);
3102 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3103 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3104 codec_string, codec->name);
3105 av_exit(1);
3106 }
3107 return codec->id;
3108 }
3109
3110 static void opt_input_file(const char *filename)
3111 {
3112 AVFormatContext *ic;
3113 AVFormatParameters params, *ap = &params;
3114 AVInputFormat *file_iformat = NULL;
3115 int err, i, ret, rfps, rfps_base;
3116 int64_t timestamp;
3117
3118 if (last_asked_format) {
3119 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3120 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3121 av_exit(1);
3122 }
3123 last_asked_format = NULL;
3124 }
3125
3126 if (!strcmp(filename, "-"))
3127 filename = "pipe:";
3128
3129 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3130 !strcmp(filename, "/dev/stdin");
3131
3132 /* get default parameters from command line */
3133 ic = avformat_alloc_context();
3134 if (!ic) {
3135 print_error(filename, AVERROR(ENOMEM));
3136 av_exit(1);
3137 }
3138
3139 memset(ap, 0, sizeof(*ap));
3140 ap->prealloced_context = 1;
3141 ap->sample_rate = audio_sample_rate;
3142 ap->channels = audio_channels;
3143 ap->time_base.den = frame_rate.num;
3144 ap->time_base.num = frame_rate.den;
3145 ap->width = frame_width;
3146 ap->height = frame_height;
3147 ap->pix_fmt = frame_pix_fmt;
3148 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3149 ap->channel = video_channel;
3150 ap->standard = video_standard;
3151
3152 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3153
3154 ic->video_codec_id =
3155 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
3156 avcodec_opts[AVMEDIA_TYPE_VIDEO ]->strict_std_compliance);
3157 ic->audio_codec_id =
3158 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
3159 avcodec_opts[AVMEDIA_TYPE_AUDIO ]->strict_std_compliance);
3160 ic->subtitle_codec_id=
3161 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3162 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3163 ic->flags |= AVFMT_FLAG_NONBLOCK;
3164
3165 if(pgmyuv_compatibility_hack)
3166 ic->video_codec_id= CODEC_ID_PGMYUV;
3167
3168 /* open the input file with generic libav function */
3169 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3170 if (err < 0) {
3171 print_error(filename, err);
3172 av_exit(1);
3173 }
3174 if(opt_programid) {
3175 int i, j;
3176 int found=0;
3177 for(i=0; i<ic->nb_streams; i++){
3178 ic->streams[i]->discard= AVDISCARD_ALL;
3179 }
3180 for(i=0; i<ic->nb_programs; i++){
3181 AVProgram *p= ic->programs[i];
3182 if(p->id != opt_programid){
3183 p->discard = AVDISCARD_ALL;
3184 }else{
3185 found=1;
3186 for(j=0; j<p->nb_stream_indexes; j++){
3187 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3188 }
3189 }
3190 }
3191 if(!found){
3192 fprintf(stderr, "Specified program id not found\n");
3193 av_exit(1);
3194 }
3195 opt_programid=0;
3196 }
3197
3198 ic->loop_input = loop_input;
3199
3200 /* If not enough info to get the stream parameters, we decode the
3201 first frames to get it. (used in mpeg case for example) */
3202 ret = av_find_stream_info(ic);
3203 if (ret < 0 && verbose >= 0) {
3204 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3205 av_exit(1);
3206 }
3207
3208 timestamp = start_time;
3209 /* add the stream start time */
3210 if (ic->start_time != AV_NOPTS_VALUE)
3211 timestamp += ic->start_time;
3212
3213 /* if seeking requested, we execute it */
3214 if (start_time != 0) {
3215 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3216 if (ret < 0) {
3217 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3218 filename, (double)timestamp / AV_TIME_BASE);
3219 }
3220 /* reset seek info */
3221 start_time = 0;
3222 }
3223
3224 /* update the current parameters so that they match the one of the input stream */
3225 for(i=0;i<ic->nb_streams;i++) {
3226 AVStream *st = ic->streams[i];
3227 AVCodecContext *enc = st->codec;
3228 avcodec_thread_init(enc, thread_count);
3229 switch(enc->codec_type) {
3230 case AVMEDIA_TYPE_AUDIO:
3231 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3232 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3233 channel_layout = enc->channel_layout;
3234 audio_channels = enc->channels;
3235 audio_sample_rate = enc->sample_rate;
3236 audio_sample_fmt = enc->sample_fmt;
3237 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3238 if(audio_disable)
3239 st->discard= AVDISCARD_ALL;
3240 break;
3241 case AVMEDIA_TYPE_VIDEO:
3242 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3243 frame_height = enc->height;
3244 frame_width = enc->width;
3245 if(ic->streams[i]->sample_aspect_ratio.num)
3246 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3247 else
3248 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3249 frame_aspect_ratio *= (float) enc->width / enc->height;
3250 frame_pix_fmt = enc->pix_fmt;
3251 rfps = ic->streams[i]->r_frame_rate.num;
3252 rfps_base = ic->streams[i]->r_frame_rate.den;
3253 if(enc->lowres) {
3254 enc->flags |= CODEC_FLAG_EMU_EDGE;
3255 frame_height >>= enc->lowres;
3256 frame_width >>= enc->lowres;
3257 }
3258 if(me_threshold)
3259 enc->debug |= FF_DEBUG_MV;
3260
3261 if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3262
3263 if (verbose >= 0)
3264 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3265 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3266
3267 (float)rfps / rfps_base, rfps, rfps_base);
3268 }
3269 /* update the current frame rate to match the stream frame rate */
3270 frame_rate.num = rfps;
3271 frame_rate.den = rfps_base;
3272
3273 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3274 if(video_disable)
3275 st->discard= AVDISCARD_ALL;
3276 else if(video_discard)
3277 st->discard= video_discard;
3278 break;
3279 case AVMEDIA_TYPE_DATA:
3280 break;
3281 case AVMEDIA_TYPE_SUBTITLE:
3282 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3283 if(subtitle_disable)
3284 st->discard = AVDISCARD_ALL;
3285 break;
3286 case AVMEDIA_TYPE_ATTACHMENT:
3287 case AVMEDIA_TYPE_UNKNOWN:
3288 nb_icodecs++;
3289 break;
3290 default:
3291 abort();
3292 }
3293 }
3294
3295 input_files[nb_input_files] = ic;
3296 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3297 /* dump the file content */
3298 if (verbose >= 0)
3299 dump_format(ic, nb_input_files, filename, 0);
3300
3301 nb_input_files++;
3302
3303 video_channel = 0;
3304
3305 av_freep(&video_codec_name);
3306 av_freep(&audio_codec_name);
3307 av_freep(&subtitle_codec_name);
3308 }
3309
3310 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3311 int *has_subtitle_ptr)
3312 {
3313 int has_video, has_audio, has_subtitle, i, j;
3314 AVFormatContext *ic;
3315
3316 has_video = 0;
3317 has_audio = 0;
3318 has_subtitle = 0;
3319 for(j=0;j<nb_input_files;j++) {
3320 ic = input_files[j];
3321 for(i=0;i<ic->nb_streams;i++) {
3322 AVCodecContext *enc = ic->streams[i]->codec;
3323 switch(enc->codec_type) {
3324 case AVMEDIA_TYPE_AUDIO:
3325 has_audio = 1;
3326 break;
3327 case AVMEDIA_TYPE_VIDEO:
3328 has_video = 1;
3329 break;
3330 case AVMEDIA_TYPE_SUBTITLE:
3331 has_subtitle = 1;
3332 break;
3333 case AVMEDIA_TYPE_DATA:
3334 case AVMEDIA_TYPE_ATTACHMENT:
3335 case AVMEDIA_TYPE_UNKNOWN:
3336 break;
3337 default:
3338 abort();
3339 }
3340 }
3341 }
3342 *has_video_ptr = has_video;
3343 *has_audio_ptr = has_audio;
3344 *has_subtitle_ptr = has_subtitle;
3345 }
3346
3347 static void new_video_stream(AVFormatContext *oc)
3348 {
3349 AVStream *st;
3350 AVCodecContext *video_enc;
3351 enum CodecID codec_id;
3352
3353 st = av_new_stream(oc, oc->nb_streams);
3354 if (!st) {
3355 fprintf(stderr, "Could not alloc stream\n");
3356 av_exit(1);
3357 }
3358 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3359 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3360 video_bitstream_filters= NULL;
3361
3362 avcodec_thread_init(st->codec, thread_count);
3363
3364 video_enc = st->codec;
3365
3366 if(video_codec_tag)
3367 video_enc->codec_tag= video_codec_tag;
3368
3369 if( (video_global_header&1)
3370 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3371 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3372 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3373 }
3374 if(video_global_header&2){
3375 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3376 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3377 }
3378
3379 if (video_stream_copy) {
3380 st->stream_copy = 1;
3381 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3382 video_enc->sample_aspect_ratio =
3383 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3384 } else {
3385 const char *p;
3386 int i;
3387 AVCodec *codec;
3388 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3389
3390 if (video_codec_name) {
3391 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3392 video_enc->strict_std_compliance);
3393 codec = avcodec_find_encoder_by_name(video_codec_name);
3394 output_codecs[nb_ocodecs] = codec;
3395 } else {
3396 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3397 codec = avcodec_find_encoder(codec_id);
3398 }
3399
3400 video_enc->codec_id = codec_id;
3401
3402 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3403
3404 if (codec && codec->supported_framerates && !force_fps)
3405 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3406 video_enc->time_base.den = fps.num;
3407 video_enc->time_base.num = fps.den;
3408
3409 video_enc->width = frame_width;
3410 video_enc->height = frame_height;
3411 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3412 video_enc->pix_fmt = frame_pix_fmt;
3413 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3414
3415 choose_pixel_fmt(st, codec);
3416
3417 if (intra_only)
3418 video_enc->gop_size = 0;
3419 if (video_qscale || same_quality) {
3420 video_enc->flags |= CODEC_FLAG_QSCALE;
3421 video_enc->global_quality=
3422 st->quality = FF_QP2LAMBDA * video_qscale;
3423 }
3424
3425 if(intra_matrix)
3426 video_enc->intra_matrix = intra_matrix;
3427 if(inter_matrix)
3428 video_enc->inter_matrix = inter_matrix;
3429
3430 p= video_rc_override_string;
3431 for(i=0; p; i++){
3432 int start, end, q;
3433 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3434 if(e!=3){
3435 fprintf(stderr, "error parsing rc_override\n");
3436 av_exit(1);
3437 }
3438 video_enc->rc_override=
3439 av_realloc(video_enc->rc_override,
3440 sizeof(RcOverride)*(i+1));
3441 video_enc->rc_override[i].start_frame= start;
3442 video_enc->rc_override[i].end_frame = end;
3443 if(q>0){
3444 video_enc->rc_override[i].qscale= q;
3445 video_enc->rc_override[i].quality_factor= 1.0;
3446 }
3447 else{
3448 video_enc->rc_override[i].qscale= 0;
3449 video_enc->rc_override[i].quality_factor= -q/100.0;
3450 }
3451 p= strchr(p, '/');
3452 if(p) p++;
3453 }
3454 video_enc->rc_override_count=i;
3455 if (!video_enc->rc_initial_buffer_occupancy)
3456 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3457 video_enc->me_threshold= me_threshold;
3458 video_enc->intra_dc_precision= intra_dc_precision - 8;
3459
3460 if (do_psnr)
3461 video_enc->flags|= CODEC_FLAG_PSNR;
3462
3463 /* two pass mode */
3464 if (do_pass) {
3465 if (do_pass == 1) {
3466 video_enc->flags |= CODEC_FLAG_PASS1;
3467 } else {
3468 video_enc->flags |= CODEC_FLAG_PASS2;
3469 }
3470 }
3471 }
3472 nb_ocodecs++;
3473 if (video_language) {
3474 av_metadata_set2(&st->metadata, "language", video_language, 0);
3475 av_freep(&video_language);
3476 }
3477
3478 /* reset some key parameters */
3479 video_disable = 0;
3480 av_freep(&video_codec_name);
3481 video_stream_copy = 0;
3482 frame_pix_fmt = PIX_FMT_NONE;
3483 }
3484
3485 static void new_audio_stream(AVFormatContext *oc)
3486 {
3487 AVStream *st;
3488 AVCodecContext *audio_enc;
3489 enum CodecID codec_id;
3490
3491 st = av_new_stream(oc, oc->nb_streams);
3492 if (!st) {
3493 fprintf(stderr, "Could not alloc stream\n");
3494 av_exit(1);
3495 }
3496 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3497
3498 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3499 audio_bitstream_filters= NULL;
3500
3501 avcodec_thread_init(st->codec, thread_count);
3502
3503 audio_enc = st->codec;
3504 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3505
3506 if(audio_codec_tag)
3507 audio_enc->codec_tag= audio_codec_tag;
3508
3509 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3510 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3511 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3512 }
3513 if (audio_stream_copy) {
3514 st->stream_copy = 1;
3515 audio_enc->channels = audio_channels;
3516 audio_enc->sample_rate = audio_sample_rate;
3517 } else {
3518 AVCodec *codec;
3519
3520 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3521
3522 if (audio_codec_name) {
3523 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3524 audio_enc->strict_std_compliance);
3525 codec = avcodec_find_encoder_by_name(audio_codec_name);
3526 output_codecs[nb_ocodecs] = codec;
3527 } else {
3528 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3529 codec = avcodec_find_encoder(codec_id);
3530 }
3531 audio_enc->codec_id = codec_id;
3532
3533 if (audio_qscale > QSCALE_NONE) {
3534 audio_enc->flags |= CODEC_FLAG_QSCALE;
3535 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3536 }
3537 audio_enc->channels = audio_channels;
3538 audio_enc->sample_fmt = audio_sample_fmt;
3539 audio_enc->sample_rate = audio_sample_rate;
3540 audio_enc->channel_layout = channel_layout;
3541 if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3542 audio_enc->channel_layout = 0;
3543 choose_sample_fmt(st, codec);
3544 choose_sample_rate(st, codec);
3545 }
3546 nb_ocodecs++;
3547 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3548 if (audio_language) {
3549 av_metadata_set2(&st->metadata, "language", audio_language, 0);
3550 av_freep(&audio_language);
3551 }
3552
3553 /* reset some key parameters */
3554 audio_disable = 0;
3555 av_freep(&audio_codec_name);
3556 audio_stream_copy = 0;
3557 }
3558
3559 static void new_subtitle_stream(AVFormatContext *oc)
3560 {
3561 AVStream *st;
3562 AVCodecContext *subtitle_enc;
3563
3564 st = av_new_stream(oc, oc->nb_streams);
3565 if (!st) {
3566 fprintf(stderr, "Could not alloc stream\n");
3567 av_exit(1);
3568 }
3569 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3570
3571 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3572 subtitle_bitstream_filters= NULL;
3573
3574 subtitle_enc = st->codec;
3575 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3576
3577 if(subtitle_codec_tag)
3578 subtitle_enc->codec_tag= subtitle_codec_tag;
3579
3580 if (subtitle_stream_copy) {
3581 st->stream_copy = 1;
3582 } else {
3583 set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3584 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3585 subtitle_enc->strict_std_compliance);
3586 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3587 }
3588 nb_ocodecs++;
3589
3590 if (subtitle_language) {
3591 av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3592 av_freep(&subtitle_language);
3593 }
3594
3595 subtitle_disable = 0;
3596 av_freep(&subtitle_codec_name);
3597 subtitle_stream_copy = 0;
3598 }
3599
3600 static void opt_new_audio_stream(void)
3601 {
3602 AVFormatContext *oc;
3603 if (nb_output_files <= 0) {
3604 fprintf(stderr, "At least one output file must be specified\n");
3605 av_exit(1);
3606 }
3607 oc = output_files[nb_output_files - 1];
3608 new_audio_stream(oc);
3609 }
3610
3611 static void opt_new_video_stream(void)
3612 {
3613 AVFormatContext *oc;
3614 if (nb_output_files <= 0) {
3615 fprintf(stderr, "At least one output file must be specified\n");
3616 av_exit(1);
3617 }
3618 oc = output_files[nb_output_files - 1];
3619 new_video_stream(oc);
3620 }
3621
3622 static void opt_new_subtitle_stream(void)
3623 {
3624 AVFormatContext *oc;
3625 if (nb_output_files <= 0) {
3626 fprintf(stderr, "At least one output file must be specified\n");
3627 av_exit(1);
3628 }
3629 oc = output_files[nb_output_files - 1];
3630 new_subtitle_stream(oc);
3631 }
3632
3633 static void opt_output_file(const char *filename)
3634 {
3635 AVFormatContext *oc;
3636 int err, use_video, use_audio, use_subtitle;
3637 int input_has_video, input_has_audio, input_has_subtitle;
3638 AVFormatParameters params, *ap = &params;
3639 AVOutputFormat *file_oformat;
3640
3641 if (!strcmp(filename, "-"))
3642 filename = "pipe:";
3643
3644 oc = avformat_alloc_context();
3645 if (!oc) {
3646 print_error(filename, AVERROR(ENOMEM));
3647 av_exit(1);
3648 }
3649
3650 if (last_asked_format) {
3651 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3652 if (!file_oformat) {
3653 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3654 av_exit(1);
3655 }
3656 last_asked_format = NULL;
3657 } else {
3658 file_oformat = av_guess_format(NULL, filename, NULL);
3659 if (!file_oformat) {
3660 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3661 filename);
3662 av_exit(1);
3663 }
3664 }
3665
3666 oc->oformat = file_oformat;
3667 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3668
3669 if (!strcmp(file_oformat->name, "ffm") &&
3670 av_strstart(filename, "http:", NULL)) {
3671 /* special case for files sent to ffserver: we get the stream
3672 parameters from ffserver */
3673 int err = read_ffserver_streams(oc, filename);
3674 if (err < 0) {
3675 print_error(filename, err);
3676 av_exit(1);
3677 }
3678 } else {
3679 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3680 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3681 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3682
3683 /* disable if no corresponding type found and at least one
3684 input file */
3685 if (nb_input_files > 0) {
3686 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3687 &input_has_subtitle);
3688 if (!input_has_video)
3689 use_video = 0;
3690 if (!input_has_audio)
3691 use_audio = 0;
3692 if (!input_has_subtitle)
3693 use_subtitle = 0;
3694 }
3695
3696 /* manual disable */
3697 if (audio_disable) {
3698 use_audio = 0;
3699 }
3700 if (video_disable) {
3701 use_video = 0;
3702 }
3703 if (subtitle_disable) {
3704 use_subtitle = 0;
3705 }
3706
3707 if (use_video) {
3708 new_video_stream(oc);
3709 }
3710
3711 if (use_audio) {
3712 new_audio_stream(oc);
3713 }
3714
3715 if (use_subtitle) {
3716