082f66c975d6cccf3aaf0df1f2610f660e465c8d
[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 recording_timestamp = 0;
179 static int64_t input_ts_offset = 0;
180 static int file_overwrite = 0;
181 static int metadata_count;
182 static AVMetadataTag *metadata;
183 static int do_benchmark = 0;
184 static int do_hex_dump = 0;
185 static int do_pkt_dump = 0;
186 static int do_psnr = 0;
187 static int do_pass = 0;
188 static char *pass_logfilename_prefix = NULL;
189 static int audio_stream_copy = 0;
190 static int video_stream_copy = 0;
191 static int subtitle_stream_copy = 0;
192 static int video_sync_method= -1;
193 static int audio_sync_method= 0;
194 static float audio_drift_threshold= 0.1;
195 static int copy_ts= 0;
196 static int opt_shortest = 0;
197 static int video_global_header = 0;
198 static char *vstats_filename;
199 static FILE *vstats_file;
200 static int opt_programid = 0;
201 static int copy_initial_nonkeyframes = 0;
202
203 static int rate_emu = 0;
204
205 static int video_channel = 0;
206 static char *video_standard;
207
208 static int audio_volume = 256;
209
210 static int exit_on_error = 0;
211 static int using_stdin = 0;
212 static int verbose = 1;
213 static int thread_count= 1;
214 static int q_pressed = 0;
215 static int64_t video_size = 0;
216 static int64_t audio_size = 0;
217 static int64_t extra_size = 0;
218 static int nb_frames_dup = 0;
219 static int nb_frames_drop = 0;
220 static int input_sync;
221 static uint64_t limit_filesize = 0;
222 static int force_fps = 0;
223
224 static int pgmyuv_compatibility_hack=0;
225 static float dts_delta_threshold = 10;
226
227 static unsigned int sws_flags = SWS_BICUBIC;
228
229 static int64_t timer_start;
230
231 static uint8_t *audio_buf;
232 static uint8_t *audio_out;
233 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
234
235 static short *samples;
236
237 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
238 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
239 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
240 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
241
242 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
243
244 struct AVInputStream;
245
246 typedef struct AVOutputStream {
247 int file_index; /* file index */
248 int index; /* stream index in the output file */
249 int source_index; /* AVInputStream index */
250 AVStream *st; /* stream in the output file */
251 int encoding_needed; /* true if encoding needed for this stream */
252 int frame_number;
253 /* input pts and corresponding output pts
254 for A/V sync */
255 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
256 struct AVInputStream *sync_ist; /* input stream to sync against */
257 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
258 /* video only */
259 int video_resample;
260 AVFrame pict_tmp; /* temporary image for resampling */
261 struct SwsContext *img_resample_ctx; /* for image resampling */
262 int resample_height;
263 int resample_width;
264 int resample_pix_fmt;
265
266 /* full frame size of first frame */
267 int original_height;
268 int original_width;
269
270 /* cropping area sizes */
271 int video_crop;
272 int topBand;
273 int bottomBand;
274 int leftBand;
275 int rightBand;
276
277 /* cropping area of first frame */
278 int original_topBand;
279 int original_bottomBand;
280 int original_leftBand;
281 int original_rightBand;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 int reformat_pair;
287 AVAudioConvert *reformat_ctx;
288 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
289 FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293 int file_index;
294 int index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 int64_t sample_index; /* current sample */
299
300 int64_t start; /* time when read started */
301 int64_t next_pts; /* synthetic pts for cases where pkt.pts
302 is not defined */
303 int64_t pts; /* current pts */
304 int is_start; /* is 1 at the start and after a discontinuity */
305 int showed_multi_packet_warning;
306 int is_past_recording_time;
307 #if CONFIG_AVFILTER
308 AVFilterContext *out_video_filter;
309 AVFilterContext *input_video_filter;
310 AVFrame *filter_frame;
311 int has_filter_frame;
312 AVFilterPicRef *picref;
313 #endif
314 } AVInputStream;
315
316 typedef struct AVInputFile {
317 int eof_reached; /* true if eof reached */
318 int ist_index; /* index of first stream in ist_table */
319 int buffer_size; /* current total buffer size */
320 int nb_streams; /* nb streams we are aware of */
321 } AVInputFile;
322
323 #if HAVE_TERMIOS_H
324
325 /* init terminal so that we can grab keys */
326 static struct termios oldtty;
327 #endif
328
329 #if CONFIG_AVFILTER
330 typedef struct {
331 int pix_fmt;
332 } FilterOutPriv;
333
334
335 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
336 {
337 FilterOutPriv *priv = ctx->priv;
338
339 if(!opaque) return -1;
340
341 priv->pix_fmt = *((int *)opaque);
342
343 return 0;
344 }
345
346 static void output_end_frame(AVFilterLink *link)
347 {
348 }
349
350 static int output_query_formats(AVFilterContext *ctx)
351 {
352 FilterOutPriv *priv = ctx->priv;
353 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
354
355 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
356 return 0;
357 }
358
359 static int get_filtered_video_pic(AVFilterContext *ctx,
360 AVFilterPicRef **picref, AVFrame *pic2,
361 uint64_t *pts)
362 {
363 AVFilterPicRef *pic;
364
365 if(avfilter_request_frame(ctx->inputs[0]))
366 return -1;
367 if(!(pic = ctx->inputs[0]->cur_pic))
368 return -1;
369 *picref = pic;
370 ctx->inputs[0]->cur_pic = NULL;
371
372 *pts = pic->pts;
373
374 memcpy(pic2->data, pic->data, sizeof(pic->data));
375 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
376 pic2->interlaced_frame = pic->interlaced;
377 pic2->top_field_first = pic->top_field_first;
378
379 return 1;
380 }
381
382 static AVFilter output_filter =
383 {
384 .name = "ffmpeg_output",
385
386 .priv_size = sizeof(FilterOutPriv),
387 .init = output_init,
388
389 .query_formats = output_query_formats,
390
391 .inputs = (AVFilterPad[]) {{ .name = "default",
392 .type = AVMEDIA_TYPE_VIDEO,
393 .end_frame = output_end_frame,
394 .min_perms = AV_PERM_READ, },
395 { .name = NULL }},
396 .outputs = (AVFilterPad[]) {{ .name = NULL }},
397 };
398
399 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
400 {
401 AVFilterContext *last_filter, *filter;
402 /** filter graph containing all filters including input & output */
403 AVCodecContext *codec = ost->st->codec;
404 AVCodecContext *icodec = ist->st->codec;
405 char args[255];
406
407 graph = av_mallocz(sizeof(AVFilterGraph));
408
409 if (!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
410 return -1;
411 if (!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
412 return -1;
413
414 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
415 ist->st->codec->height, ist->st->codec->pix_fmt);
416 if (avfilter_init_filter(ist->input_video_filter, args, NULL))
417 return -1;
418 if (avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
419 return -1;
420
421 /* add input and output filters to the overall graph */
422 avfilter_graph_add_filter(graph, ist->input_video_filter);
423 avfilter_graph_add_filter(graph, ist->out_video_filter);
424
425 last_filter = ist->input_video_filter;
426
427 if (ost->video_crop) {
428 snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
429 codec->width,
430 codec->height);
431 filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
432 if (!filter)
433 return -1;
434 if (avfilter_init_filter(filter, args, NULL))
435 return -1;
436 if (avfilter_link(last_filter, 0, filter, 0))
437 return -1;
438 last_filter = filter;
439 avfilter_graph_add_filter(graph, last_filter);
440 }
441
442 if((codec->width !=
443 icodec->width - (frame_leftBand + frame_rightBand)) ||
444 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
445 snprintf(args, 255, "%d:%d:flags=0x%X",
446 codec->width,
447 codec->height,
448 (int)av_get_int(sws_opts, "sws_flags", NULL));
449 filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
450 if (!filter)
451 return -1;
452 if (avfilter_init_filter(filter, args, NULL))
453 return -1;
454 if (avfilter_link(last_filter, 0, filter, 0))
455 return -1;
456 last_filter = filter;
457 avfilter_graph_add_filter(graph, last_filter);
458 }
459
460 if (vfilters) {
461 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
462 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
463
464 outputs->name = av_strdup("in");
465 outputs->filter = last_filter;
466 outputs->pad_idx = 0;
467 outputs->next = NULL;
468
469 inputs->name = av_strdup("out");
470 inputs->filter = ist->out_video_filter;
471 inputs->pad_idx = 0;
472 inputs->next = NULL;
473
474 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
475 return -1;
476 av_freep(&vfilters);
477 } else {
478 if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
479 return -1;
480 }
481
482 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
483 graph->scale_sws_opts = av_strdup(args);
484
485 /* configure all the filter links */
486 if (avfilter_graph_check_validity(graph, NULL))
487 return -1;
488 if (avfilter_graph_config_formats(graph, NULL))
489 return -1;
490 if (avfilter_graph_config_links(graph, NULL))
491 return -1;
492
493 codec->width = ist->out_video_filter->inputs[0]->w;
494 codec->height = ist->out_video_filter->inputs[0]->h;
495
496 return 0;
497 }
498 #endif /* CONFIG_AVFILTER */
499
500 static void term_exit(void)
501 {
502 #if HAVE_TERMIOS_H
503 tcsetattr (0, TCSANOW, &oldtty);
504 #endif
505 }
506
507 static volatile int received_sigterm = 0;
508
509 static void
510 sigterm_handler(int sig)
511 {
512 received_sigterm = sig;
513 term_exit();
514 }
515
516 static void term_init(void)
517 {
518 #if HAVE_TERMIOS_H
519 struct termios tty;
520
521 tcgetattr (0, &tty);
522 oldtty = tty;
523 atexit(term_exit);
524
525 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
526 |INLCR|IGNCR|ICRNL|IXON);
527 tty.c_oflag |= OPOST;
528 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
529 tty.c_cflag &= ~(CSIZE|PARENB);
530 tty.c_cflag |= CS8;
531 tty.c_cc[VMIN] = 1;
532 tty.c_cc[VTIME] = 0;
533
534 tcsetattr (0, TCSANOW, &tty);
535 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
536 #endif
537
538 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
539 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
540 #ifdef SIGXCPU
541 signal(SIGXCPU, sigterm_handler);
542 #endif
543 }
544
545 /* read a key without blocking */
546 static int read_key(void)
547 {
548 #if HAVE_TERMIOS_H
549 int n = 1;
550 unsigned char ch;
551 struct timeval tv;
552 fd_set rfds;
553
554 FD_ZERO(&rfds);
555 FD_SET(0, &rfds);
556 tv.tv_sec = 0;
557 tv.tv_usec = 0;
558 n = select(1, &rfds, NULL, NULL, &tv);
559 if (n > 0) {
560 n = read(0, &ch, 1);
561 if (n == 1)
562 return ch;
563
564 return n;
565 }
566 #elif HAVE_CONIO_H
567 if(kbhit())
568 return(getch());
569 #endif
570 return -1;
571 }
572
573 static int decode_interrupt_cb(void)
574 {
575 return q_pressed || (q_pressed = read_key() == 'q');
576 }
577
578 static int av_exit(int ret)
579 {
580 int i;
581
582 /* close files */
583 for(i=0;i<nb_output_files;i++) {
584 /* maybe av_close_output_file ??? */
585 AVFormatContext *s = output_files[i];
586 int j;
587 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
588 url_fclose(s->pb);
589 for(j=0;j<s->nb_streams;j++) {
590 av_metadata_free(&s->streams[j]->metadata);
591 av_free(s->streams[j]->codec);
592 av_free(s->streams[j]);
593 }
594 for(j=0;j<s->nb_programs;j++) {
595 av_metadata_free(&s->programs[j]->metadata);
596 }
597 for(j=0;j<s->nb_chapters;j++) {
598 av_metadata_free(&s->chapters[j]->metadata);
599 }
600 av_metadata_free(&s->metadata);
601 av_free(s);
602 }
603 for(i=0;i<nb_input_files;i++)
604 av_close_input_file(input_files[i]);
605
606 av_free(intra_matrix);
607 av_free(inter_matrix);
608
609 if (vstats_file)
610 fclose(vstats_file);
611 av_free(vstats_filename);
612
613 av_free(opt_names);
614
615 av_free(video_codec_name);
616 av_free(audio_codec_name);
617 av_free(subtitle_codec_name);
618
619 av_free(video_standard);
620
621 #if CONFIG_POWERPC_PERF
622 void powerpc_display_perf_report(void);
623 powerpc_display_perf_report();
624 #endif /* CONFIG_POWERPC_PERF */
625
626 for (i=0;i<AVMEDIA_TYPE_NB;i++)
627 av_free(avcodec_opts[i]);
628 av_free(avformat_opts);
629 av_free(sws_opts);
630 av_free(audio_buf);
631 av_free(audio_out);
632 allocated_audio_buf_size= allocated_audio_out_size= 0;
633 av_free(samples);
634
635 #if CONFIG_AVFILTER
636 avfilter_uninit();
637 #endif
638
639 if (received_sigterm) {
640 fprintf(stderr,
641 "Received signal %d: terminating.\n",
642 (int) received_sigterm);
643 exit (255);
644 }
645
646 exit(ret); /* not all OS-es handle main() return value */
647 return ret;
648 }
649
650 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
651 {
652 if(codec && codec->sample_fmts){
653 const enum SampleFormat *p= codec->sample_fmts;
654 for(; *p!=-1; p++){
655 if(*p == st->codec->sample_fmt)
656 break;
657 }
658 if(*p == -1)
659 st->codec->sample_fmt = codec->sample_fmts[0];
660 }
661 }
662
663 static void choose_sample_rate(AVStream *st, AVCodec *codec)
664 {
665 if(codec && codec->supported_samplerates){
666 const int *p= codec->supported_samplerates;
667 int best;
668 int best_dist=INT_MAX;
669 for(; *p; p++){
670 int dist= abs(st->codec->sample_rate - *p);
671 if(dist < best_dist){
672 best_dist= dist;
673 best= *p;
674 }
675 }
676 if(best_dist){
677 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
678 }
679 st->codec->sample_rate= best;
680 }
681 }
682
683 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
684 {
685 if(codec && codec->pix_fmts){
686 const enum PixelFormat *p= codec->pix_fmts;
687 for(; *p!=-1; p++){
688 if(*p == st->codec->pix_fmt)
689 break;
690 }
691 if(*p == -1
692 && !( st->codec->codec_id==CODEC_ID_MJPEG
693 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
694 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
695 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
696 st->codec->pix_fmt = codec->pix_fmts[0];
697 }
698 }
699
700 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
701 {
702 int i, err;
703 AVFormatContext *ic;
704 int nopts = 0;
705
706 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
707 if (err < 0)
708 return err;
709 /* copy stream format */
710 s->nb_streams = ic->nb_streams;
711 for(i=0;i<ic->nb_streams;i++) {
712 AVStream *st;
713 AVCodec *codec;
714
715 // FIXME: a more elegant solution is needed
716 st = av_mallocz(sizeof(AVStream));
717 memcpy(st, ic->streams[i], sizeof(AVStream));
718 st->codec = avcodec_alloc_context();
719 if (!st->codec) {
720 print_error(filename, AVERROR(ENOMEM));
721 av_exit(1);
722 }
723 avcodec_copy_context(st->codec, ic->streams[i]->codec);
724 s->streams[i] = st;
725
726 codec = avcodec_find_encoder(st->codec->codec_id);
727 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
728 if (audio_stream_copy) {
729 st->stream_copy = 1;
730 } else
731 choose_sample_fmt(st, codec);
732 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
733 if (video_stream_copy) {
734 st->stream_copy = 1;
735 } else
736 choose_pixel_fmt(st, codec);
737 }
738
739 if(!st->codec->thread_count)
740 st->codec->thread_count = 1;
741 if(st->codec->thread_count>1)
742 avcodec_thread_init(st->codec, st->codec->thread_count);
743
744 if(st->codec->flags & CODEC_FLAG_BITEXACT)
745 nopts = 1;
746 }
747
748 if (!nopts)
749 s->timestamp = av_gettime();
750
751 av_close_input_file(ic);
752 return 0;
753 }
754
755 static double
756 get_sync_ipts(const AVOutputStream *ost)
757 {
758 const AVInputStream *ist = ost->sync_ist;
759 return (double)(ist->pts - start_time)/AV_TIME_BASE;
760 }
761
762 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
763 int ret;
764
765 while(bsfc){
766 AVPacket new_pkt= *pkt;
767 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
768 &new_pkt.data, &new_pkt.size,
769 pkt->data, pkt->size,
770 pkt->flags & AV_PKT_FLAG_KEY);
771 if(a>0){
772 av_free_packet(pkt);
773 new_pkt.destruct= av_destruct_packet;
774 } else if(a<0){
775 fprintf(stderr, "%s failed for stream %d, codec %s",
776 bsfc->filter->name, pkt->stream_index,
777 avctx->codec ? avctx->codec->name : "copy");
778 print_error("", a);
779 if (exit_on_error)
780 av_exit(1);
781 }
782 *pkt= new_pkt;
783
784 bsfc= bsfc->next;
785 }
786
787 ret= av_interleaved_write_frame(s, pkt);
788 if(ret < 0){
789 print_error("av_interleaved_write_frame()", ret);
790 av_exit(1);
791 }
792 }
793
794 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
795
796 static void do_audio_out(AVFormatContext *s,
797 AVOutputStream *ost,
798 AVInputStream *ist,
799 unsigned char *buf, int size)
800 {
801 uint8_t *buftmp;
802 int64_t audio_out_size, audio_buf_size;
803 int64_t allocated_for_size= size;
804
805 int size_out, frame_bytes, ret;
806 AVCodecContext *enc= ost->st->codec;
807 AVCodecContext *dec= ist->st->codec;
808 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
809 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
810 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
811
812 need_realloc:
813 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
814 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
815 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
816 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
817 audio_buf_size*= osize*enc->channels;
818
819 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
820 if(coded_bps > 8*osize)
821 audio_out_size= audio_out_size * coded_bps / (8*osize);
822 audio_out_size += FF_MIN_BUFFER_SIZE;
823
824 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
825 fprintf(stderr, "Buffer sizes too large\n");
826 av_exit(1);
827 }
828
829 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
830 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
831 if (!audio_buf || !audio_out){
832 fprintf(stderr, "Out of memory in do_audio_out\n");
833 av_exit(1);
834 }
835
836 if (enc->channels != dec->channels)
837 ost->audio_resample = 1;
838
839 if (ost->audio_resample && !ost->resample) {
840 if (dec->sample_fmt != SAMPLE_FMT_S16)
841 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
842 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
843 enc->sample_rate, dec->sample_rate,
844 enc->sample_fmt, dec->sample_fmt,
845 16, 10, 0, 0.8);
846 if (!ost->resample) {
847 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
848 dec->channels, dec->sample_rate,
849 enc->channels, enc->sample_rate);
850 av_exit(1);
851 }
852 }
853
854 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
855 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
856 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
857 if (ost->reformat_ctx)
858 av_audio_convert_free(ost->reformat_ctx);
859 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
860 dec->sample_fmt, 1, NULL, 0);
861 if (!ost->reformat_ctx) {
862 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
863 avcodec_get_sample_fmt_name(dec->sample_fmt),
864 avcodec_get_sample_fmt_name(enc->sample_fmt));
865 av_exit(1);
866 }
867 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
868 }
869
870 if(audio_sync_method){
871 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
872 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
873 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
874 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
875
876 //FIXME resample delay
877 if(fabs(delta) > 50){
878 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
879 if(byte_delta < 0){
880 byte_delta= FFMAX(byte_delta, -size);
881 size += byte_delta;
882 buf -= byte_delta;
883 if(verbose > 2)
884 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
885 if(!size)
886 return;
887 ist->is_start=0;
888 }else{
889 static uint8_t *input_tmp= NULL;
890 input_tmp= av_realloc(input_tmp, byte_delta + size);
891
892 if(byte_delta > allocated_for_size - size){
893 allocated_for_size= byte_delta + (int64_t)size;
894 goto need_realloc;
895 }
896 ist->is_start=0;
897
898 memset(input_tmp, 0, byte_delta);
899 memcpy(input_tmp + byte_delta, buf, size);
900 buf= input_tmp;
901 size += byte_delta;
902 if(verbose > 2)
903 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
904 }
905 }else if(audio_sync_method>1){
906 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
907 assert(ost->audio_resample);
908 if(verbose > 2)
909 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
910 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
911 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
912 }
913 }
914 }else
915 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
916 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
917
918 if (ost->audio_resample) {
919 buftmp = audio_buf;
920 size_out = audio_resample(ost->resample,
921 (short *)buftmp, (short *)buf,
922 size / (ist->st->codec->channels * isize));
923 size_out = size_out * enc->channels * osize;
924 } else {
925 buftmp = buf;
926 size_out = size;
927 }
928
929 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
930 const void *ibuf[6]= {buftmp};
931 void *obuf[6]= {audio_buf};
932 int istride[6]= {isize};
933 int ostride[6]= {osize};
934 int len= size_out/istride[0];
935 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
936 printf("av_audio_convert() failed\n");
937 if (exit_on_error)
938 av_exit(1);
939 return;
940 }
941 buftmp = audio_buf;
942 size_out = len*osize;
943 }
944
945 /* now encode as many frames as possible */
946 if (enc->frame_size > 1) {
947 /* output resampled raw samples */
948 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
949 fprintf(stderr, "av_fifo_realloc2() failed\n");
950 av_exit(1);
951 }
952 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
953
954 frame_bytes = enc->frame_size * osize * enc->channels;
955
956 while (av_fifo_size(ost->fifo) >= frame_bytes) {
957 AVPacket pkt;
958 av_init_packet(&pkt);
959
960 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
961
962 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
963
964 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
965 (short *)audio_buf);
966 if (ret < 0) {
967 fprintf(stderr, "Audio encoding failed\n");
968 av_exit(1);
969 }
970 audio_size += ret;
971 pkt.stream_index= ost->index;
972 pkt.data= audio_out;
973 pkt.size= ret;
974 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
975 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
976 pkt.flags |= AV_PKT_FLAG_KEY;
977 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
978
979 ost->sync_opts += enc->frame_size;
980 }
981 } else {
982 AVPacket pkt;
983 av_init_packet(&pkt);
984
985 ost->sync_opts += size_out / (osize * enc->channels);
986
987 /* output a pcm frame */
988 /* determine the size of the coded buffer */
989 size_out /= osize;
990 if (coded_bps)
991 size_out = size_out*coded_bps/8;
992
993 if(size_out > audio_out_size){
994 fprintf(stderr, "Internal error, buffer size too small\n");
995 av_exit(1);
996 }
997
998 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
999 ret = avcodec_encode_audio(enc, audio_out, size_out,
1000 (short *)buftmp);
1001 if (ret < 0) {
1002 fprintf(stderr, "Audio encoding failed\n");
1003 av_exit(1);
1004 }
1005 audio_size += ret;
1006 pkt.stream_index= ost->index;
1007 pkt.data= audio_out;
1008 pkt.size= ret;
1009 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1010 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1011 pkt.flags |= AV_PKT_FLAG_KEY;
1012 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1013 }
1014 }
1015
1016 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1017 {
1018 AVCodecContext *dec;
1019 AVPicture *picture2;
1020 AVPicture picture_tmp;
1021 uint8_t *buf = 0;
1022
1023 dec = ist->st->codec;
1024
1025 /* deinterlace : must be done before any resize */
1026 if (do_deinterlace) {
1027 int size;
1028
1029 /* create temporary picture */
1030 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1031 buf = av_malloc(size);
1032 if (!buf)
1033 return;
1034
1035 picture2 = &picture_tmp;
1036 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1037
1038 if(avpicture_deinterlace(picture2, picture,
1039 dec->pix_fmt, dec->width, dec->height) < 0) {
1040 /* if error, do not deinterlace */
1041 fprintf(stderr, "Deinterlacing failed\n");
1042 av_free(buf);
1043 buf = NULL;
1044 picture2 = picture;
1045 }
1046 } else {
1047 picture2 = picture;
1048 }
1049
1050 if (picture != picture2)
1051 *picture = *picture2;
1052 *bufp = buf;
1053 }
1054
1055 /* we begin to correct av delay at this threshold */
1056 #define AV_DELAY_MAX 0.100
1057
1058 static void do_subtitle_out(AVFormatContext *s,
1059 AVOutputStream *ost,
1060 AVInputStream *ist,
1061 AVSubtitle *sub,
1062 int64_t pts)
1063 {
1064 static uint8_t *subtitle_out = NULL;
1065 int subtitle_out_max_size = 1024 * 1024;
1066 int subtitle_out_size, nb, i;
1067 AVCodecContext *enc;
1068 AVPacket pkt;
1069
1070 if (pts == AV_NOPTS_VALUE) {
1071 fprintf(stderr, "Subtitle packets must have a pts\n");
1072 if (exit_on_error)
1073 av_exit(1);
1074 return;
1075 }
1076
1077 enc = ost->st->codec;
1078
1079 if (!subtitle_out) {
1080 subtitle_out = av_malloc(subtitle_out_max_size);
1081 }
1082
1083 /* Note: DVB subtitle need one packet to draw them and one other
1084 packet to clear them */
1085 /* XXX: signal it in the codec context ? */
1086 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1087 nb = 2;
1088 else
1089 nb = 1;
1090
1091 for(i = 0; i < nb; i++) {
1092 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1093 // start_display_time is required to be 0
1094 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1095 sub->end_display_time -= sub->start_display_time;
1096 sub->start_display_time = 0;
1097 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1098 subtitle_out_max_size, sub);
1099 if (subtitle_out_size < 0) {
1100 fprintf(stderr, "Subtitle encoding failed\n");
1101 av_exit(1);
1102 }
1103
1104 av_init_packet(&pkt);
1105 pkt.stream_index = ost->index;
1106 pkt.data = subtitle_out;
1107 pkt.size = subtitle_out_size;
1108 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1109 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1110 /* XXX: the pts correction is handled here. Maybe handling
1111 it in the codec would be better */
1112 if (i == 0)
1113 pkt.pts += 90 * sub->start_display_time;
1114 else
1115 pkt.pts += 90 * sub->end_display_time;
1116 }
1117 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1118 }
1119 }
1120
1121 static int bit_buffer_size= 1024*256;
1122 static uint8_t *bit_buffer= NULL;
1123
1124 static void do_video_out(AVFormatContext *s,
1125 AVOutputStream *ost,
1126 AVInputStream *ist,
1127 AVFrame *in_picture,
1128 int *frame_size)
1129 {
1130 int nb_frames, i, ret;
1131 #if !CONFIG_AVFILTER
1132 int64_t topBand, bottomBand, leftBand, rightBand;
1133 #endif
1134 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1135 AVFrame picture_crop_temp, picture_pad_temp;
1136 AVCodecContext *enc, *dec;
1137 double sync_ipts;
1138
1139 avcodec_get_frame_defaults(&picture_crop_temp);
1140 avcodec_get_frame_defaults(&picture_pad_temp);
1141
1142 enc = ost->st->codec;
1143 dec = ist->st->codec;
1144
1145 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1146
1147 /* by default, we output a single frame */
1148 nb_frames = 1;
1149
1150 *frame_size = 0;
1151
1152 if(video_sync_method){
1153 double vdelta = sync_ipts - ost->sync_opts;
1154 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1155 if (vdelta < -1.1)
1156 nb_frames = 0;
1157 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1158 if(vdelta<=-0.6){
1159 nb_frames=0;
1160 }else if(vdelta>0.6)
1161 ost->sync_opts= lrintf(sync_ipts);
1162 }else if (vdelta > 1.1)
1163 nb_frames = lrintf(vdelta);
1164 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1165 if (nb_frames == 0){
1166 ++nb_frames_drop;
1167 if (verbose>2)
1168 fprintf(stderr, "*** drop!\n");
1169 }else if (nb_frames > 1) {
1170 nb_frames_dup += nb_frames - 1;
1171 if (verbose>2)
1172 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1173 }
1174 }else
1175 ost->sync_opts= lrintf(sync_ipts);
1176
1177 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1178 if (nb_frames <= 0)
1179 return;
1180
1181 #if CONFIG_AVFILTER
1182 formatted_picture = in_picture;
1183 #else
1184 if (ost->video_crop) {
1185 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1186 fprintf(stderr, "error cropping picture\n");
1187 if (exit_on_error)
1188 av_exit(1);
1189 return;
1190 }
1191 formatted_picture = &picture_crop_temp;
1192 } else {
1193 formatted_picture = in_picture;
1194 }
1195 #endif
1196
1197 final_picture = formatted_picture;
1198 padding_src = formatted_picture;
1199 resampling_dst = &ost->pict_tmp;
1200
1201 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1202 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1203 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1204
1205 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1206 if(!ost->video_resample)
1207 av_exit(1);
1208 }
1209
1210 #if !CONFIG_AVFILTER
1211 if (ost->video_resample) {
1212 padding_src = NULL;
1213 final_picture = &ost->pict_tmp;
1214 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1215 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1216 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1217
1218 /* keep bands proportional to the frame size */
1219 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1220 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1221 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1222 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1223
1224 /* sanity check to ensure no bad band sizes sneak in */
1225 assert(topBand <= INT_MAX && topBand >= 0);
1226 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1227 assert(leftBand <= INT_MAX && leftBand >= 0);
1228 assert(rightBand <= INT_MAX && rightBand >= 0);
1229
1230 ost->topBand = topBand;
1231 ost->bottomBand = bottomBand;
1232 ost->leftBand = leftBand;
1233 ost->rightBand = rightBand;
1234
1235 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1236 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1237 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1238
1239 /* initialize a new scaler context */
1240 sws_freeContext(ost->img_resample_ctx);
1241 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1242 ost->img_resample_ctx = sws_getContext(
1243 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1244 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1245 ist->st->codec->pix_fmt,
1246 ost->st->codec->width,
1247 ost->st->codec->height,
1248 ost->st->codec->pix_fmt,
1249 sws_flags, NULL, NULL, NULL);
1250 if (ost->img_resample_ctx == NULL) {
1251 fprintf(stderr, "Cannot get resampling context\n");
1252 av_exit(1);
1253 }
1254 }
1255 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1256 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1257 }
1258 #endif
1259
1260 /* duplicates frame if needed */
1261 for(i=0;i<nb_frames;i++) {
1262 AVPacket pkt;
1263 av_init_packet(&pkt);
1264 pkt.stream_index= ost->index;
1265
1266 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1267 /* raw pictures are written as AVPicture structure to
1268 avoid any copies. We support temorarily the older
1269 method. */
1270 AVFrame* old_frame = enc->coded_frame;
1271 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1272 pkt.data= (uint8_t *)final_picture;
1273 pkt.size= sizeof(AVPicture);
1274 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1275 pkt.flags |= AV_PKT_FLAG_KEY;
1276
1277 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1278 enc->coded_frame = old_frame;
1279 } else {
1280 AVFrame big_picture;
1281
1282 big_picture= *final_picture;
1283 /* better than nothing: use input picture interlaced
1284 settings */
1285 big_picture.interlaced_frame = in_picture->interlaced_frame;
1286 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1287 if(top_field_first == -1)
1288 big_picture.top_field_first = in_picture->top_field_first;
1289 else
1290 big_picture.top_field_first = top_field_first;
1291 }
1292
1293 /* handles sameq here. This is not correct because it may
1294 not be a global option */
1295 if (same_quality) {
1296 big_picture.quality = ist->st->quality;
1297 }else
1298 big_picture.quality = ost->st->quality;
1299 if(!me_threshold)
1300 big_picture.pict_type = 0;
1301 // big_picture.pts = AV_NOPTS_VALUE;
1302 big_picture.pts= ost->sync_opts;
1303 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1304 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1305 ret = avcodec_encode_video(enc,
1306 bit_buffer, bit_buffer_size,
1307 &big_picture);
1308 if (ret < 0) {
1309 fprintf(stderr, "Video encoding failed\n");
1310 av_exit(1);
1311 }
1312
1313 if(ret>0){
1314 pkt.data= bit_buffer;
1315 pkt.size= ret;
1316 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1317 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1318 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1319 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1320 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1321
1322 if(enc->coded_frame->key_frame)
1323 pkt.flags |= AV_PKT_FLAG_KEY;
1324 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1325 *frame_size = ret;
1326 video_size += ret;
1327 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1328 // enc->frame_number-1, ret, enc->pict_type);
1329 /* if two pass, output log */
1330 if (ost->logfile && enc->stats_out) {
1331 fprintf(ost->logfile, "%s", enc->stats_out);
1332 }
1333 }
1334 }
1335 ost->sync_opts++;
1336 ost->frame_number++;
1337 }
1338 }
1339
1340 static double psnr(double d){
1341 return -10.0*log(d)/log(10.0);
1342 }
1343
1344 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1345 int frame_size)
1346 {
1347 AVCodecContext *enc;
1348 int frame_number;
1349 double ti1, bitrate, avg_bitrate;
1350
1351 /* this is executed just the first time do_video_stats is called */
1352 if (!vstats_file) {
1353 vstats_file = fopen(vstats_filename, "w");
1354 if (!vstats_file) {
1355 perror("fopen");
1356 av_exit(1);
1357 }
1358 }
1359
1360 enc = ost->st->codec;
1361 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1362 frame_number = ost->frame_number;
1363 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1364 if (enc->flags&CODEC_FLAG_PSNR)
1365 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1366
1367 fprintf(vstats_file,"f_size= %6d ", frame_size);
1368 /* compute pts value */
1369 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1370 if (ti1 < 0.01)
1371 ti1 = 0.01;
1372
1373 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1374 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1375 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1376 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1377 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1378 }
1379 }
1380
1381 static void print_report(AVFormatContext **output_files,
1382 AVOutputStream **ost_table, int nb_ostreams,
1383 int is_last_report)
1384 {
1385 char buf[1024];
1386 AVOutputStream *ost;
1387 AVFormatContext *oc;
1388 int64_t total_size;
1389 AVCodecContext *enc;
1390 int frame_number, vid, i;
1391 double bitrate, ti1, pts;
1392 static int64_t last_time = -1;
1393 static int qp_histogram[52];
1394
1395 if (!is_last_report) {
1396 int64_t cur_time;
1397 /* display the report every 0.5 seconds */
1398 cur_time = av_gettime();
1399 if (last_time == -1) {
1400 last_time = cur_time;
1401 return;
1402 }
1403 if ((cur_time - last_time) < 500000)
1404 return;
1405 last_time = cur_time;
1406 }
1407
1408
1409 oc = output_files[0];
1410
1411 total_size = url_fsize(oc->pb);
1412 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1413 total_size= url_ftell(oc->pb);
1414
1415 buf[0] = '\0';
1416 ti1 = 1e10;
1417 vid = 0;
1418 for(i=0;i<nb_ostreams;i++) {
1419 ost = ost_table[i];
1420 enc = ost->st->codec;
1421 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1422 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1423 !ost->st->stream_copy ?
1424 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1425 }
1426 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1427 float t = (av_gettime()-timer_start) / 1000000.0;
1428
1429 frame_number = ost->frame_number;
1430 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1431 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1432 !ost->st->stream_copy ?
1433 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1434 if(is_last_report)
1435 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1436 if(qp_hist){
1437 int j;
1438 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1439 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1440 qp_histogram[qp]++;
1441 for(j=0; j<32; j++)
1442 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1443 }
1444 if (enc->flags&CODEC_FLAG_PSNR){
1445 int j;
1446 double error, error_sum=0;
1447 double scale, scale_sum=0;
1448 char type[3]= {'Y','U','V'};
1449 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1450 for(j=0; j<3; j++){
1451 if(is_last_report){
1452 error= enc->error[j];
1453 scale= enc->width*enc->height*255.0*255.0*frame_number;
1454 }else{
1455 error= enc->coded_frame->error[j];
1456 scale= enc->width*enc->height*255.0*255.0;
1457 }
1458 if(j) scale/=4;
1459 error_sum += error;
1460 scale_sum += scale;
1461 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1462 }
1463 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1464 }
1465 vid = 1;
1466 }
1467 /* compute min output value */
1468 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1469 if ((pts < ti1) && (pts > 0))
1470 ti1 = pts;
1471 }
1472 if (ti1 < 0.01)
1473 ti1 = 0.01;
1474
1475 if (verbose || is_last_report) {
1476 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1477
1478 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1479 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1480 (double)total_size / 1024, ti1, bitrate);
1481
1482 if (nb_frames_dup || nb_frames_drop)
1483 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1484 nb_frames_dup, nb_frames_drop);
1485
1486 if (verbose >= 0)
1487 fprintf(stderr, "%s \r", buf);
1488
1489 fflush(stderr);
1490 }
1491
1492 if (is_last_report && verbose >= 0){
1493 int64_t raw= audio_size + video_size + extra_size;
1494 fprintf(stderr, "\n");
1495 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1496 video_size/1024.0,
1497 audio_size/1024.0,
1498 extra_size/1024.0,
1499 100.0*(total_size - raw)/raw
1500 );
1501 }
1502 }
1503
1504 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1505 static int output_packet(AVInputStream *ist, int ist_index,
1506 AVOutputStream **ost_table, int nb_ostreams,
1507 const AVPacket *pkt)
1508 {
1509 AVFormatContext *os;
1510 AVOutputStream *ost;
1511 int ret, i;
1512 int got_picture;
1513 AVFrame picture;
1514 void *buffer_to_free;
1515 static unsigned int samples_size= 0;
1516 AVSubtitle subtitle, *subtitle_to_free;
1517 #if CONFIG_AVFILTER
1518 int frame_available;
1519 #endif
1520
1521 AVPacket avpkt;
1522 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1523
1524 if(ist->next_pts == AV_NOPTS_VALUE)
1525 ist->next_pts= ist->pts;
1526
1527 if (pkt == NULL) {
1528 /* EOF handling */
1529 av_init_packet(&avpkt);
1530 avpkt.data = NULL;
1531 avpkt.size = 0;
1532 goto handle_eof;
1533 } else {
1534 avpkt = *pkt;
1535 }
1536
1537 if(pkt->dts != AV_NOPTS_VALUE)
1538 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1539
1540 //while we have more to decode or while the decoder did output something on EOF
1541 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1542 uint8_t *data_buf, *decoded_data_buf;
1543 int data_size, decoded_data_size;
1544 handle_eof:
1545 ist->pts= ist->next_pts;
1546
1547 if(avpkt.size && avpkt.size != pkt->size &&
1548 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1549 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1550 ist->showed_multi_packet_warning=1;
1551 }
1552
1553 /* decode the packet if needed */
1554 decoded_data_buf = NULL; /* fail safe */
1555 decoded_data_size= 0;
1556 data_buf = avpkt.data;
1557 data_size = avpkt.size;
1558 subtitle_to_free = NULL;
1559 if (ist->decoding_needed) {
1560 switch(ist->st->codec->codec_type) {
1561 case AVMEDIA_TYPE_AUDIO:{
1562 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1563 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1564 av_free(samples);
1565 samples= av_malloc(samples_size);
1566 }
1567 decoded_data_size= samples_size;
1568 /* XXX: could avoid copy if PCM 16 bits with same
1569 endianness as CPU */
1570 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1571 &avpkt);
1572 if (ret < 0)
1573 goto fail_decode;
1574 avpkt.data += ret;
1575 avpkt.size -= ret;
1576 data_size = ret;
1577 /* Some bug in mpeg audio decoder gives */
1578 /* decoded_data_size < 0, it seems they are overflows */
1579 if (decoded_data_size <= 0) {
1580 /* no audio frame */
1581 continue;
1582 }
1583 decoded_data_buf = (uint8_t *)samples;
1584 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1585 (ist->st->codec->sample_rate * ist->st->codec->channels);
1586 break;}
1587 case AVMEDIA_TYPE_VIDEO:
1588 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1589 /* XXX: allocate picture correctly */
1590 avcodec_get_frame_defaults(&picture);
1591
1592 ret = avcodec_decode_video2(ist->st->codec,
1593 &picture, &got_picture, &avpkt);
1594 ist->st->quality= picture.quality;
1595 if (ret < 0)
1596 goto fail_decode;
1597 if (!got_picture) {
1598 /* no picture yet */
1599 goto discard_packet;
1600 }
1601 if (ist->st->codec->time_base.num != 0) {
1602 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1603 ist->next_pts += ((int64_t)AV_TIME_BASE *
1604 ist->st->codec->time_base.num * ticks) /
1605 ist->st->codec->time_base.den;
1606 }
1607 avpkt.size = 0;
1608 break;
1609 case AVMEDIA_TYPE_SUBTITLE:
1610 ret = avcodec_decode_subtitle2(ist->st->codec,
1611 &subtitle, &got_picture, &avpkt);
1612 if (ret < 0)
1613 goto fail_decode;
1614 if (!got_picture) {
1615 goto discard_packet;
1616 }
1617 subtitle_to_free = &subtitle;
1618 avpkt.size = 0;
1619 break;
1620 default:
1621 goto fail_decode;
1622 }
1623 } else {
1624 switch(ist->st->codec->codec_type) {
1625 case AVMEDIA_TYPE_AUDIO:
1626 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1627 ist->st->codec->sample_rate;
1628 break;
1629 case AVMEDIA_TYPE_VIDEO:
1630 if (ist->st->codec->time_base.num != 0) {
1631 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1632 ist->next_pts += ((int64_t)AV_TIME_BASE *
1633 ist->st->codec->time_base.num * ticks) /
1634 ist->st->codec->time_base.den;
1635 }
1636 break;
1637 }
1638 ret = avpkt.size;
1639 avpkt.size = 0;
1640 }
1641
1642 buffer_to_free = NULL;
1643 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1644 pre_process_video_frame(ist, (AVPicture *)&picture,
1645 &buffer_to_free);
1646 }
1647
1648 #if CONFIG_AVFILTER
1649 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1650 // add it to be filtered
1651 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1652 ist->pts,
1653 ist->st->codec->sample_aspect_ratio);
1654 }
1655 #endif
1656
1657 // preprocess audio (volume)
1658 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1659 if (audio_volume != 256) {
1660 short *volp;
1661 volp = samples;
1662 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1663 int v = ((*volp) * audio_volume + 128) >> 8;
1664 if (v < -32768) v = -32768;
1665 if (v > 32767) v = 32767;
1666 *volp++ = v;
1667 }
1668 }
1669 }
1670
1671 /* frame rate emulation */
1672 if (rate_emu) {
1673 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1674 int64_t now = av_gettime() - ist->start;
1675 if (pts > now)
1676 usleep(pts - now);
1677 }
1678 #if CONFIG_AVFILTER
1679 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1680 !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1681 #endif
1682 /* if output time reached then transcode raw format,
1683 encode packets and output them */
1684 if (start_time == 0 || ist->pts >= start_time)
1685 #if CONFIG_AVFILTER
1686 while (frame_available) {
1687 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1688 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1689 #endif
1690 for(i=0;i<nb_ostreams;i++) {
1691 int frame_size;
1692
1693 ost = ost_table[i];
1694 if (ost->source_index == ist_index) {
1695 os = output_files[ost->file_index];
1696
1697 /* set the input output pts pairs */
1698 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1699
1700 if (ost->encoding_needed) {
1701 assert(ist->decoding_needed);
1702 switch(ost->st->codec->codec_type) {
1703 case AVMEDIA_TYPE_AUDIO:
1704 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1705 break;
1706 case AVMEDIA_TYPE_VIDEO:
1707 #if CONFIG_AVFILTER
1708 ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1709 #endif
1710 do_video_out(os, ost, ist, &picture, &frame_size);
1711 if (vstats_filename && frame_size)
1712 do_video_stats(os, ost, frame_size);
1713 break;
1714 case AVMEDIA_TYPE_SUBTITLE:
1715 do_subtitle_out(os, ost, ist, &subtitle,
1716 pkt->pts);
1717 break;
1718 default:
1719 abort();
1720 }
1721 } else {
1722 AVFrame avframe; //FIXME/XXX remove this
1723 AVPacket opkt;
1724 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1725
1726 av_init_packet(&opkt);
1727
1728 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1729 continue;
1730
1731 /* no reencoding needed : output the packet directly */
1732 /* force the input stream PTS */
1733
1734 avcodec_get_frame_defaults(&avframe);
1735 ost->st->codec->coded_frame= &avframe;
1736 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1737
1738 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1739 audio_size += data_size;
1740 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1741 video_size += data_size;
1742 ost->sync_opts++;
1743 }
1744
1745 opkt.stream_index= ost->index;
1746 if(pkt->pts != AV_NOPTS_VALUE)
1747 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1748 else
1749 opkt.pts= AV_NOPTS_VALUE;
1750
1751 if (pkt->dts == AV_NOPTS_VALUE)
1752 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1753 else
1754 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1755 opkt.dts -= ost_tb_start_time;
1756
1757 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1758 opkt.flags= pkt->flags;
1759
1760 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1761 if( ost->st->codec->codec_id != CODEC_ID_H264
1762 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1763 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1764 ) {
1765 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1766 opkt.destruct= av_destruct_packet;
1767 } else {
1768 opkt.data = data_buf;
1769 opkt.size = data_size;
1770 }
1771
1772 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1773 ost->st->codec->frame_number++;
1774 ost->frame_number++;
1775 av_free_packet(&opkt);
1776 }
1777 }
1778 #if CONFIG_AVFILTER
1779 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1780 ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1781 #endif
1782 }
1783
1784 #if CONFIG_AVFILTER
1785 if(ist->picref)
1786 avfilter_unref_pic(ist->picref);
1787 }
1788 #endif
1789 av_free(buffer_to_free);
1790 /* XXX: allocate the subtitles in the codec ? */
1791 if (subtitle_to_free) {
1792 if (subtitle_to_free->rects != NULL) {
1793 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1794 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1795 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1796 av_freep(&subtitle_to_free->rects[i]);
1797 }
1798 av_freep(&subtitle_to_free->rects);
1799 }
1800 subtitle_to_free->num_rects = 0;
1801 subtitle_to_free = NULL;
1802 }
1803 }
1804 discard_packet:
1805 if (pkt == NULL) {
1806 /* EOF handling */
1807
1808 for(i=0;i<nb_ostreams;i++) {
1809 ost = ost_table[i];
1810 if (ost->source_index == ist_index) {
1811 AVCodecContext *enc= ost->st->codec;
1812 os = output_files[ost->file_index];
1813
1814 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1815 continue;
1816 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1817 continue;
1818
1819 if (ost->encoding_needed) {
1820 for(;;) {
1821 AVPacket pkt;
1822 int fifo_bytes;
1823 av_init_packet(&pkt);
1824 pkt.stream_index= ost->index;
1825
1826 switch(ost->st->codec->codec_type) {
1827 case AVMEDIA_TYPE_AUDIO:
1828 fifo_bytes = av_fifo_size(ost->fifo);
1829 ret = 0;
1830 /* encode any samples remaining in fifo */
1831 if (fifo_bytes > 0) {
1832 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1833 int fs_tmp = enc->frame_size;
1834
1835 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1836 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1837 enc->frame_size = fifo_bytes / (osize * enc->channels);
1838 } else { /* pad */
1839 int frame_bytes = enc->frame_size*osize*enc->channels;
1840 if (allocated_audio_buf_size < frame_bytes)
1841 av_exit(1);
1842 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1843 }
1844
1845 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1846 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1847 ost->st->time_base.num, enc->sample_rate);
1848 enc->frame_size = fs_tmp;
1849 }
1850 if(ret <= 0) {
1851 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1852 }
1853 if (ret < 0) {
1854 fprintf(stderr, "Audio encoding failed\n");
1855 av_exit(1);
1856 }
1857 audio_size += ret;
1858 pkt.flags |= AV_PKT_FLAG_KEY;
1859 break;
1860 case AVMEDIA_TYPE_VIDEO:
1861 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1862 if (ret < 0) {
1863 fprintf(stderr, "Video encoding failed\n");
1864 av_exit(1);
1865 }
1866 video_size += ret;
1867 if(enc->coded_frame && enc->coded_frame->key_frame)
1868 pkt.flags |= AV_PKT_FLAG_KEY;
1869 if (ost->logfile && enc->stats_out) {
1870 fprintf(ost->logfile, "%s", enc->stats_out);
1871 }
1872 break;
1873 default:
1874 ret=-1;
1875 }
1876
1877 if(ret<=0)
1878 break;
1879 pkt.data= bit_buffer;
1880 pkt.size= ret;
1881 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1882 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1883 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1884 }
1885 }
1886 }
1887 }
1888 }
1889
1890 return 0;
1891 fail_decode:
1892 return -1;
1893 }
1894
1895 static void print_sdp(AVFormatContext **avc, int n)
1896 {
1897 char sdp[2048];
1898
1899 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1900 printf("SDP:\n%s\n", sdp);
1901 fflush(stdout);
1902 }
1903
1904 static int copy_chapters(int infile, int outfile)
1905 {
1906 AVFormatContext *is = input_files[infile];
1907 AVFormatContext *os = output_files[outfile];
1908 int i;
1909
1910 for (i = 0; i < is->nb_chapters; i++) {
1911 AVChapter *in_ch = is->chapters[i], *out_ch;
1912 AVMetadataTag *t = NULL;
1913 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1914 AV_TIME_BASE_Q, in_ch->time_base);
1915 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1916 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1917
1918
1919 if (in_ch->end < ts_off)
1920 continue;
1921 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1922 break;
1923
1924 out_ch = av_mallocz(sizeof(AVChapter));
1925 if (!out_ch)
1926 return AVERROR(ENOMEM);
1927
1928 out_ch->id = in_ch->id;
1929 out_ch->time_base = in_ch->time_base;
1930 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1931 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1932
1933 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1934 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1935
1936 os->nb_chapters++;
1937 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1938 if (!os->chapters)
1939 return AVERROR(ENOMEM);
1940 os->chapters[os->nb_chapters - 1] = out_ch;
1941 }
1942 return 0;
1943 }
1944
1945 /*
1946 * The following code is the main loop of the file converter
1947 */
1948 static int av_transcode(AVFormatContext **output_files,
1949 int nb_output_files,
1950 AVFormatContext **input_files,
1951 int nb_input_files,
1952 AVStreamMap *stream_maps, int nb_stream_maps)
1953 {
1954 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1955 AVFormatContext *is, *os;
1956 AVCodecContext *codec, *icodec;
1957 AVOutputStream *ost, **ost_table = NULL;
1958 AVInputStream *ist, **ist_table = NULL;
1959 AVInputFile *file_table;
1960 char error[1024];
1961 int key;
1962 int want_sdp = 1;
1963 uint8_t no_packet[MAX_FILES]={0};
1964 int no_packet_count=0;
1965
1966 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1967 if (!file_table)
1968 goto fail;
1969
1970 /* input stream init */
1971 j = 0;
1972 for(i=0;i<nb_input_files;i++) {
1973 is = input_files[i];
1974 file_table[i].ist_index = j;
1975 file_table[i].nb_streams = is->nb_streams;
1976 j += is->nb_streams;
1977 }
1978 nb_istreams = j;
1979
1980 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1981 if (!ist_table)
1982 goto fail;
1983
1984 for(i=0;i<nb_istreams;i++) {
1985 ist = av_mallocz(sizeof(AVInputStream));
1986 if (!ist)
1987 goto fail;
1988 ist_table[i] = ist;
1989 }
1990 j = 0;
1991 for(i=0;i<nb_input_files;i++) {
1992 is = input_files[i];
1993 for(k=0;k<is->nb_streams;k++) {
1994 ist = ist_table[j++];
1995 ist->st = is->streams[k];
1996 ist->file_index = i;
1997 ist->index = k;
1998 ist->discard = 1; /* the stream is discarded by default
1999 (changed later) */
2000
2001 if (rate_emu) {
2002 ist->start = av_gettime();
2003 }
2004 }
2005 }
2006
2007 /* output stream init */
2008 nb_ostreams = 0;
2009 for(i=0;i<nb_output_files;i++) {
2010 os = output_files[i];
2011 if (!os->nb_streams) {
2012 dump_format(output_files[i], i, output_files[i]->filename, 1);
2013 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2014 av_exit(1);
2015 }
2016 nb_ostreams += os->nb_streams;
2017 }
2018 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2019 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2020 av_exit(1);
2021 }
2022
2023 /* Sanity check the mapping args -- do the input files & streams exist? */
2024 for(i=0;i<nb_stream_maps;i++) {
2025 int fi = stream_maps[i].file_index;
2026 int si = stream_maps[i].stream_index;
2027
2028 if (fi < 0 || fi > nb_input_files - 1 ||
2029 si < 0 || si > file_table[fi].nb_streams - 1) {
2030 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2031 av_exit(1);
2032 }
2033 fi = stream_maps[i].sync_file_index;
2034 si = stream_maps[i].sync_stream_index;
2035 if (fi < 0 || fi > nb_input_files - 1 ||
2036 si < 0 || si > file_table[fi].nb_streams - 1) {
2037 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2038 av_exit(1);
2039 }
2040 }
2041
2042 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2043 if (!ost_table)
2044 goto fail;
2045 for(i=0;i<nb_ostreams;i++) {
2046 ost = av_mallocz(sizeof(AVOutputStream));
2047 if (!ost)
2048 goto fail;
2049 ost_table[i] = ost;
2050 }
2051
2052 n = 0;
2053 for(k=0;k<nb_output_files;k++) {
2054 os = output_files[k];
2055 for(i=0;i<os->nb_streams;i++,n++) {
2056 int found;
2057 ost = ost_table[n];
2058 ost->file_index = k;
2059 ost->index = i;
2060 ost->st = os->streams[i];
2061 if (nb_stream_maps > 0) {
2062 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2063 stream_maps[n].stream_index;
2064
2065 /* Sanity check that the stream types match */
2066 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2067 int i= ost->file_index;
2068 dump_format(output_files[i], i, output_files[i]->filename, 1);
2069 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2070 stream_maps[n].file_index, stream_maps[n].stream_index,
2071 ost->file_index, ost->index);
2072 av_exit(1);
2073 }
2074
2075 } else {
2076 int best_nb_frames=-1;
2077 /* get corresponding input stream index : we select the first one with the right type */
2078 found = 0;
2079 for(j=0;j<nb_istreams;j++) {
2080 int skip=0;
2081 ist = ist_table[j];
2082 if(opt_programid){
2083 int pi,si;
2084 AVFormatContext *f= input_files[ ist->file_index ];
2085 skip=1;
2086 for(pi=0; pi<f->nb_programs; pi++){
2087 AVProgram *p= f->programs[pi];
2088 if(p->id == opt_programid)
2089 for(si=0; si<p->nb_stream_indexes; si++){
2090 if(f->streams[ p->stream_index[si] ] == ist->st)
2091 skip=0;
2092 }
2093 }
2094 }
2095 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2096 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2097 if(best_nb_frames < ist->st->codec_info_nb_frames){
2098 best_nb_frames= ist->st->codec_info_nb_frames;
2099 ost->source_index = j;
2100 found = 1;
2101 }
2102 }
2103 }
2104
2105 if (!found) {
2106 if(! opt_programid) {
2107 /* try again and reuse existing stream */
2108 for(j=0;j<nb_istreams;j++) {
2109 ist = ist_table[j];
2110 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2111 && ist->st->discard != AVDISCARD_ALL) {
2112 ost->source_index = j;
2113 found = 1;
2114 }
2115 }
2116 }
2117 if (!found) {
2118 int i= ost->file_index;
2119 dump_format(output_files[i], i, output_files[i]->filename, 1);
2120 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2121 ost->file_index, ost->index);
2122 av_exit(1);
2123 }
2124 }
2125 }
2126 ist = ist_table[ost->source_index];
2127 ist->discard = 0;
2128 ost->sync_ist = (nb_stream_maps > 0) ?
2129 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2130 stream_maps[n].sync_stream_index] : ist;
2131 }
2132 }
2133
2134 /* for each output stream, we compute the right encoding parameters */
2135 for(i=0;i<nb_ostreams;i++) {
2136 AVMetadataTag *t = NULL;
2137 ost = ost_table[i];
2138 os = output_files[ost->file_index];
2139 ist = ist_table[ost->source_index];
2140
2141 codec = ost->st->codec;
2142 icodec = ist->st->codec;
2143
2144 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2145 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2146 }
2147
2148 ost->st->disposition = ist->st->disposition;
2149 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2150 codec->chroma_sample_location = icodec->chroma_sample_location;
2151
2152 if (ost->st->stream_copy) {
2153 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2154
2155 if (extra_size > INT_MAX)
2156 goto fail;
2157
2158 /* if stream_copy is selected, no need to decode or encode */
2159 codec->codec_id = icodec->codec_id;
2160 codec->codec_type = icodec->codec_type;
2161
2162 if(!codec->codec_tag){
2163 if( !os->oformat->codec_tag
2164 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2165 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2166 codec->codec_tag = icodec->codec_tag;
2167 }
2168
2169 codec->bit_rate = icodec->bit_rate;
2170 codec->extradata= av_mallocz(extra_size);
2171 if (!codec->extradata)
2172 goto fail;
2173 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2174 codec->extradata_size= icodec->extradata_size;
2175 if(av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000){
2176 codec->time_base = icodec->time_base;
2177 codec->time_base.num *= icodec->ticks_per_frame;
2178 }else
2179 codec->time_base = ist->st->time_base;
2180 switch(codec->codec_type) {
2181 case AVMEDIA_TYPE_AUDIO:
2182 if(audio_volume != 256) {
2183 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
2184 av_exit(1);
2185 }
2186 codec->channel_layout = icodec->channel_layout;
2187 codec->sample_rate = icodec->sample_rate;
2188 codec->channels = icodec->channels;
2189 codec->frame_size = icodec->frame_size;
2190 codec->block_align= icodec->block_align;
2191 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
2192 codec->block_align= 0;
2193 if(codec->codec_id == CODEC_ID_AC3)
2194 codec->block_align= 0;
2195 break;
2196 case AVMEDIA_TYPE_VIDEO:
2197 codec->pix_fmt = icodec->pix_fmt;
2198 codec->width = icodec->width;
2199 codec->height = icodec->height;
2200 codec->has_b_frames = icodec->has_b_frames;
2201 break;
2202 case AVMEDIA_TYPE_SUBTITLE:
2203 codec->width = icodec->width;
2204 codec->height = icodec->height;
2205 break;
2206 default:
2207 abort();
2208 }
2209 } else {
2210 switch(codec->codec_type) {
2211 case AVMEDIA_TYPE_AUDIO:
2212 ost->fifo= av_fifo_alloc(1024);
2213 if(!ost->fifo)
2214 goto fail;
2215 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
2216 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
2217 icodec->request_channels = codec->channels;
2218 ist->decoding_needed = 1;
2219 ost->encoding_needed = 1;
2220 break;
2221 case AVMEDIA_TYPE_VIDEO:
2222 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
2223 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
2224 av_exit(1);
2225 }
2226 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2227 ost->video_resample = ((codec->width != icodec->width -
2228 (frame_leftBand + frame_rightBand)) ||
2229 (codec->height != icodec->height -
2230 (frame_topBand + frame_bottomBand)) ||
2231 (codec->pix_fmt != icodec->pix_fmt));
2232 if (ost->video_crop) {
2233 ost->topBand = ost->original_topBand = frame_topBand;
2234 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2235 ost->leftBand = ost->original_leftBand = frame_leftBand;
2236 ost->rightBand = ost->original_rightBand = frame_rightBand;
2237 }
2238 if (ost->video_resample) {
2239 avcodec_get_frame_defaults(&ost->pict_tmp);
2240 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2241 codec->width, codec->height)) {
2242 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2243 av_exit(1);
2244 }
2245 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2246 ost->img_resample_ctx = sws_getContext(
2247 icodec->width - (frame_leftBand + frame_rightBand),
2248 icodec->height - (frame_topBand + frame_bottomBand),
2249 icodec->pix_fmt,
2250 codec->width,
2251 codec->height,
2252 codec->pix_fmt,
2253 sws_flags, NULL, NULL, NULL);
2254 if (ost->img_resample_ctx == NULL) {
2255 fprintf(stderr, "Cannot get resampling context\n");
2256 av_exit(1);
2257 }
2258
2259 #if !CONFIG_AVFILTER
2260 ost->original_height = icodec->height;
2261 ost->original_width = icodec->width;
2262 #endif
2263 codec->bits_per_raw_sample= 0;
2264 }
2265 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
2266 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
2267 ost->resample_pix_fmt= icodec->pix_fmt;
2268 ost->encoding_needed = 1;
2269 ist->decoding_needed = 1;
2270
2271 #if CONFIG_AVFILTER
2272 if (configure_filters(ist, ost)) {
2273 fprintf(stderr, "Error opening filters!\n");
2274 exit(1);
2275 }
2276 #endif
2277 break;
2278 case AVMEDIA_TYPE_SUBTITLE:
2279 ost->encoding_needed = 1;
2280 ist->decoding_needed = 1;
2281 break;
2282 default:
2283 abort();
2284 break;
2285 }
2286 /* two pass mode */
2287 if (ost->encoding_needed &&
2288 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2289 char logfilename[1024];
2290 FILE *f;
2291
2292 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2293 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2294 i);
2295 if (codec->flags & CODEC_FLAG_PASS1) {
2296 f = fopen(logfilename, "wb");
2297 if (!f) {
2298 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2299 av_exit(1);
2300 }
2301 ost->logfile = f;
2302 } else {
2303 char *logbuffer;
2304 size_t logbuffer_size;
2305 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2306 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2307 av_exit(1);
2308 }
2309 codec->stats_in = logbuffer;
2310 }
2311 }
2312 }
2313 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2314 int size= codec->width * codec->height;
2315 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2316 }
2317 }
2318
2319 if (!bit_buffer)
2320 bit_buffer = av_malloc(bit_buffer_size);
2321 if (!bit_buffer) {
2322 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2323 bit_buffer_size);
2324 ret = AVERROR(ENOMEM);
2325 goto fail;
2326 }
2327
2328 /* open each encoder */
2329 for(i=0;i<nb_ostreams;i++) {
2330 ost = ost_table[i];
2331 if (ost->encoding_needed) {
2332 AVCodec *codec = output_codecs[i];
2333 if (!codec)
2334 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2335 if (!codec) {
2336 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2337 ost->st->codec->codec_id, ost->file_index, ost->index);
2338 ret = AVERROR(EINVAL);
2339 goto dump_format;
2340 }
2341 if (avcodec_open(ost->st->codec, codec) < 0) {
2342 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2343 ost->file_index, ost->index);
2344 ret = AVERROR(EINVAL);
2345 goto dump_format;
2346 }
2347 extra_size += ost->st->codec->extradata_size;
2348 }
2349 }
2350
2351 /* open each decoder */
2352 for(i=0;i<nb_istreams;i++) {
2353 ist = ist_table[i];
2354 if (ist->decoding_needed) {
2355 AVCodec *codec = input_codecs[i];
2356 if (!codec)
2357 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2358 if (!codec) {
2359 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2360 ist->st->codec->codec_id, ist->file_index, ist->index);
2361 ret = AVERROR(EINVAL);
2362 goto dump_format;
2363 }
2364 if (avcodec_open(ist->st->codec, codec) < 0) {
2365 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2366 ist->file_index, ist->index);
2367 ret = AVERROR(EINVAL);
2368 goto dump_format;
2369 }
2370 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2371 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2372 }
2373 }
2374
2375 /* init pts */
2376 for(i=0;i<nb_istreams;i++) {
2377 AVStream *st;
2378 ist = ist_table[i];
2379 st= ist->st;
2380 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2381 ist->next_pts = AV_NOPTS_VALUE;
2382 ist->is_start = 1;
2383 }
2384
2385 /* set meta data information from input file if required */
2386 for (i=0;i<nb_meta_data_maps;i++) {
2387 AVFormatContext *out_file;
2388 AVFormatContext *in_file;
2389 AVMetadataTag *mtag;
2390
2391 int out_file_index = meta_data_maps[i].out_file;
2392 int in_file_index = meta_data_maps[i].in_file;
2393 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2394 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2395 out_file_index, out_file_index, in_file_index);
2396 ret = AVERROR(EINVAL);
2397 goto dump_format;
2398 }
2399 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2400 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2401 in_file_index, out_file_index, in_file_index);
2402 ret = AVERROR(EINVAL);
2403 goto dump_format;
2404 }
2405
2406 out_file = output_files[out_file_index];
2407 in_file = input_files[in_file_index];
2408
2409
2410 mtag=NULL;
2411 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2412 av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2413 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2414 in_file->iformat->metadata_conv);
2415 }
2416
2417 /* copy chapters from the first input file that has them*/
2418 for (i = 0; i < nb_input_files; i++) {
2419 if (!input_files[i]->nb_chapters)
2420 continue;
2421
2422 for (j = 0; j < nb_output_files; j++)
2423 if ((ret = copy_chapters(i, j)) < 0)
2424 goto dump_format;
2425 }
2426
2427 /* open files and write file headers */
2428 for(i=0;i<nb_output_files;i++) {
2429 os = output_files[i];
2430 if (av_write_header(os) < 0) {
2431 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2432 ret = AVERROR(EINVAL);
2433 goto dump_format;
2434 }
2435 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2436 want_sdp = 0;
2437 }
2438 }
2439
2440 dump_format:
2441 /* dump the file output parameters - cannot be done before in case
2442 of stream copy */
2443 for(i=0;i<nb_output_files;i++) {
2444 dump_format(output_files[i], i, output_files[i]->filename, 1);
2445 }
2446
2447 /* dump the stream mapping */
2448 if (verbose >= 0) {
2449 fprintf(stderr, "Stream mapping:\n");
2450 for(i=0;i<nb_ostreams;i++) {
2451 ost = ost_table[i];
2452 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2453 ist_table[ost->source_index]->file_index,
2454 ist_table[ost->source_index]->index,
2455 ost->file_index,
2456 ost->index);
2457 if (ost->sync_ist != ist_table[ost->source_index])
2458 fprintf(stderr, " [sync #%d.%d]",
2459 ost->sync_ist->file_index,
2460 ost->sync_ist->index);
2461 fprintf(stderr, "\n");
2462 }
2463 }
2464
2465 if (ret) {
2466 fprintf(stderr, "%s\n", error);
2467 goto fail;
2468 }
2469
2470 if (want_sdp) {
2471 print_sdp(output_files, nb_output_files);
2472 }
2473
2474 if (!using_stdin && verbose >= 0) {
2475 fprintf(stderr, "Press [q] to stop encoding\n");
2476 url_set_interrupt_cb(decode_interrupt_cb);
2477 }
2478 term_init();
2479
2480 timer_start = av_gettime();
2481
2482 for(; received_sigterm == 0;) {
2483 int file_index, ist_index;
2484 AVPacket pkt;
2485 double ipts_min;
2486 double opts_min;
2487
2488 redo:
2489 ipts_min= 1e100;
2490 opts_min= 1e100;
2491 /* if 'q' pressed, exits */
2492 if (!using_stdin) {
2493 if (q_pressed)
2494 break;
2495 /* read_key() returns 0 on EOF */
2496 key = read_key();
2497 if (key == 'q')
2498 break;
2499 }
2500
2501 /* select the stream that we must read now by looking at the
2502 smallest output pts */
2503 file_index = -1;
2504 for(i=0;i<nb_ostreams;i++) {
2505 double ipts, opts;
2506 ost = ost_table[i];
2507 os = output_files[ost->file_index];
2508 ist = ist_table[ost->source_index];
2509 if(ist->is_past_recording_time || no_packet[ist->file_index])
2510 continue;
2511 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2512 ipts = (double)ist->pts;
2513 if (!file_table[ist->file_index].eof_reached){
2514 if(ipts < ipts_min) {
2515 ipts_min = ipts;
2516 if(input_sync ) file_index = ist->file_index;
2517 }
2518 if(opts < opts_min) {
2519 opts_min = opts;
2520 if(!input_sync) file_index = ist->file_index;
2521 }
2522 }
2523 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2524 file_index= -1;
2525 break;
2526 }
2527 }
2528 /* if none, if is finished */
2529 if (file_index < 0) {
2530 if(no_packet_count){
2531 no_packet_count=0;
2532 memset(no_packet, 0, sizeof(no_packet));
2533 usleep(10000);
2534 continue;
2535 }
2536 break;
2537 }
2538
2539 /* finish if limit size exhausted */
2540 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2541 break;
2542
2543 /* read a frame from it and output it in the fifo */
2544 is = input_files[file_index];
2545 ret= av_read_frame(is, &pkt);
2546 if(ret == AVERROR(EAGAIN)){
2547 no_packet[file_index]=1;
2548 no_packet_count++;
2549 continue;
2550 }
2551 if (ret < 0) {
2552 file_table[file_index].eof_reached = 1;
2553 if (opt_shortest)
2554 break;
2555 else
2556 continue;
2557 }
2558
2559 no_packet_count=0;
2560 memset(no_packet, 0, sizeof(no_packet));
2561
2562 if (do_pkt_dump) {
2563 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2564 }
2565 /* the following test is needed in case new streams appear
2566 dynamically in stream : we ignore them */
2567 if (pkt.stream_index >= file_table[file_index].nb_streams)
2568 goto discard_packet;
2569 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2570 ist = ist_table[ist_index];
2571 if (ist->discard)
2572 goto discard_packet;
2573
2574 if (pkt.dts != AV_NOPTS_VALUE)
2575 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2576 if (pkt.pts != AV_NOPTS_VALUE)
2577 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2578
2579 if(input_files_ts_scale[file_index][pkt.stream_index]){
2580 if(pkt.pts != AV_NOPTS_VALUE)
2581 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2582 if(pkt.dts != AV_NOPTS_VALUE)
2583 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2584 }
2585
2586 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
2587 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2588 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2589 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2590 int64_t delta= pkt_dts - ist->next_pts;
2591 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2592 input_files_ts_offset[ist->file_index]-= delta;
2593 if (verbose > 2)
2594 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2595 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2596 if(pkt.pts != AV_NOPTS_VALUE)
2597 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2598 }
2599 }
2600
2601 /* finish if recording time exhausted */
2602 if (recording_time != INT64_MAX &&
2603 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2604 ist->is_past_recording_time = 1;
2605 goto discard_packet;
2606 }
2607
2608 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2609 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2610
2611 if (verbose >= 0)
2612 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2613 ist->file_index, ist->index);
2614 if (exit_on_error)
2615 av_exit(1);
2616 av_free_packet(&pkt);
2617 goto redo;
2618 }
2619
2620 discard_packet:
2621 av_free_packet(&pkt);
2622
2623 /* dump report by using the output first video and audio streams */
2624 print_report(output_files, ost_table, nb_ostreams, 0);
2625 }
2626
2627 /* at the end of stream, we must flush the decoder buffers */
2628 for(i=0;i<nb_istreams;i++) {
2629 ist = ist_table[i];
2630 if (ist->decoding_needed) {
2631 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2632 }
2633 }
2634
2635 term_exit();
2636
2637 /* write the trailer if needed and close file */
2638 for(i=0;i<nb_output_files;i++) {
2639 os = output_files[i];
2640 av_write_trailer(os);
2641 }
2642
2643 /* dump report by using the first video and audio streams */
2644 print_report(output_files, ost_table, nb_ostreams, 1);
2645
2646 /* close each encoder */
2647 for(i=0;i<nb_ostreams;i++) {
2648 ost = ost_table[i];
2649 if (ost->encoding_needed) {
2650 av_freep(&ost->st->codec->stats_in);
2651 avcodec_close(ost->st->codec);
2652 }
2653 }
2654
2655 /* close each decoder */
2656 for(i=0;i<nb_istreams;i++) {
2657 ist = ist_table[i];
2658 if (ist->decoding_needed) {
2659 avcodec_close(ist->st->codec);
2660 }
2661 }
2662 #if CONFIG_AVFILTER
2663 if (graph) {
2664 avfilter_graph_destroy(graph);
2665 av_freep(&graph);
2666 }
2667 #endif
2668
2669 /* finished ! */
2670 ret = 0;
2671
2672 fail:
2673 av_freep(&bit_buffer);
2674 av_free(file_table);
2675
2676 if (ist_table) {
2677 for(i=0;i<nb_istreams;i++) {
2678 ist = ist_table[i];
2679 av_free(ist);
2680 }
2681 av_free(ist_table);
2682 }
2683 if (ost_table) {
2684 for(i=0;i<nb_ostreams;i++) {
2685 ost = ost_table[i];
2686 if (ost) {
2687 if (ost->st->stream_copy)
2688 av_freep(&ost->st->codec->extradata);
2689 if (ost->logfile) {
2690 fclose(ost->logfile);
2691 ost->logfile = NULL;
2692 }
2693 av_fifo_free(ost->fifo); /* works even if fifo is not
2694 initialized but set to zero */
2695 av_free(ost->pict_tmp.data[0]);
2696 if (ost->video_resample)
2697 sws_freeContext(ost->img_resample_ctx);
2698 if (ost->resample)
2699 audio_resample_close(ost->resample);
2700 if (ost->reformat_ctx)
2701 av_audio_convert_free(ost->reformat_ctx);
2702 av_free(ost);
2703 }
2704 }
2705 av_free(ost_table);
2706 }
2707 return ret;
2708 }
2709
2710 static void opt_format(const char *arg)
2711 {
2712 /* compatibility stuff for pgmyuv */
2713 if (!strcmp(arg, "pgmyuv")) {
2714 pgmyuv_compatibility_hack=1;
2715 // opt_image_format(arg);
2716 arg = "image2";
2717 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2718 }
2719
2720 last_asked_format = arg;
2721 }
2722
2723 static void opt_video_rc_override_string(const char *arg)
2724 {
2725 video_rc_override_string = arg;
2726 }
2727
2728 static int opt_me_threshold(const char *opt, const char *arg)
2729 {
2730 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2731 return 0;
2732 }
2733
2734 static int opt_verbose(const char *opt, const char *arg)
2735 {
2736 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2737 return 0;
2738 }
2739
2740 static int opt_frame_rate(const char *opt, const char *arg)
2741 {
2742 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2743 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2744 av_exit(1);
2745 }
2746 return 0;
2747 }
2748
2749 static int opt_bitrate(const char *opt, const char *arg)
2750 {
2751 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2752
2753 opt_default(opt, arg);
2754
2755 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2756 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2757
2758 return 0;
2759 }
2760
2761 static void opt_frame_crop_top(const char *arg)
2762 {
2763 frame_topBand = atoi(arg);
2764 if (frame_topBand < 0) {
2765 fprintf(stderr, "Incorrect top crop size\n");
2766 av_exit(1);
2767 }
2768 if ((frame_topBand) >= frame_height){
2769 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2770 av_exit(1);
2771 }
2772 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2773 frame_height -= frame_topBand;
2774 }
2775
2776 static void opt_frame_crop_bottom(const char *arg)
2777 {
2778 frame_bottomBand = atoi(arg);
2779 if (frame_bottomBand < 0) {
2780 fprintf(stderr, "Incorrect bottom crop size\n");
2781 av_exit(1);
2782 }
2783 if ((frame_bottomBand) >= frame_height){
2784 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2785 av_exit(1);
2786 }
2787 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2788 frame_height -= frame_bottomBand;
2789 }
2790
2791 static void opt_frame_crop_left(const char *arg)
2792 {
2793 frame_leftBand = atoi(arg);
2794 if (frame_leftBand < 0) {
2795 fprintf(stderr, "Incorrect left crop size\n");
2796 av_exit(1);
2797 }
2798 if ((frame_leftBand) >= frame_width){
2799 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2800 av_exit(1);
2801 }
2802 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2803 frame_width -= frame_leftBand;
2804 }
2805
2806 static void opt_frame_crop_right(const char *arg)
2807 {
2808 frame_rightBand = atoi(arg);
2809 if (frame_rightBand < 0) {
2810 fprintf(stderr, "Incorrect right crop size\n");
2811 av_exit(1);
2812 }
2813 if ((frame_rightBand) >= frame_width){
2814 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2815 av_exit(1);
2816 }
2817 fprintf(stderr, "-crop* is deprecated in favor of the crop avfilter\n");
2818 frame_width -= frame_rightBand;
2819 }
2820
2821 static void opt_frame_size(const char *arg)
2822 {
2823 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2824 fprintf(stderr, "Incorrect frame size\n");
2825 av_exit(1);
2826 }
2827 }
2828
2829 static void opt_pad(const char *arg) {
2830 fprintf(stderr, "Please use vf=pad\n");
2831 av_exit(1);
2832 }
2833
2834 static void opt_frame_pix_fmt(const char *arg)
2835 {
2836 if (strcmp(arg, "list")) {
2837 frame_pix_fmt = av_get_pix_fmt(arg);
2838 if (frame_pix_fmt == PIX_FMT_NONE) {
2839 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2840 av_exit(1);
2841 }
2842 } else {
2843 show_pix_fmts();
2844 av_exit(0);
2845 }
2846 }
2847
2848 static void opt_frame_aspect_ratio(const char *arg)
2849 {
2850 int x = 0, y = 0;
2851 double ar = 0;
2852 const char *p;
2853 char *end;
2854
2855 p = strchr(arg, ':');
2856 if (p) {
2857 x = strtol(arg, &end, 10);
2858 if (end == p)
2859 y = strtol(end+1, &end, 10);
2860 if (x > 0 && y > 0)
2861 ar = (double)x / (double)y;
2862 } else
2863 ar = strtod(arg, NULL);
2864
2865 if (!ar) {
2866 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2867 av_exit(1);
2868 }
2869 frame_aspect_ratio = ar;
2870 }
2871
2872 static int opt_metadata(const char *opt, const char *arg)
2873 {
2874 char *mid= strchr(arg, '=');
2875
2876 if(!mid){
2877 fprintf(stderr, "Missing =\n");
2878 av_exit(1);
2879 }
2880 *mid++= 0;
2881
2882 metadata_count++;
2883 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2884 metadata[metadata_count-1].key = av_strdup(arg);
2885 metadata[metadata_count-1].value= av_strdup(mid);
2886
2887 return 0;
2888 }
2889
2890 static void opt_qscale(const char *arg)
2891 {
2892 video_qscale = atof(arg);
2893 if (video_qscale <= 0 ||
2894 video_qscale > 255) {
2895 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2896 av_exit(1);
2897 }
2898 }
2899
2900 static void opt_top_field_first(const char *arg)
2901 {
2902 top_field_first= atoi(arg);
2903 }
2904
2905 static int opt_thread_count(const char *opt, const char *arg)
2906 {
2907 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2908 #if !HAVE_THREADS
2909 if (verbose >= 0)
2910 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2911 #endif
2912 return 0;
2913 }
2914
2915 static void opt_audio_sample_fmt(const char *arg)
2916 {
2917 if (strcmp(arg, "list"))
2918 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2919 else {
2920 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2921 av_exit(0);
2922 }
2923 }
2924
2925 static int opt_audio_rate(const char *opt, const char *arg)
2926 {
2927 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2928 return 0;
2929 }
2930
2931 static int opt_audio_channels(const char *opt, const char *arg)
2932 {
2933 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2934 return 0;
2935 }
2936
2937 static void opt_video_channel(const char *arg)
2938 {
2939 video_channel = strtol(arg, NULL, 0);
2940 }
2941
2942 static void opt_video_standard(const char *arg)
2943 {
2944 video_standard = av_strdup(arg);
2945 }
2946
2947 static void opt_codec(int *pstream_copy, char **pcodec_name,
2948 int codec_type, const char *arg)
2949 {
2950 av_freep(pcodec_name);
2951 if (!strcmp(arg, "copy")) {
2952 *pstream_copy = 1;
2953 } else {
2954 *pcodec_name = av_strdup(arg);
2955 }
2956 }
2957
2958 static void opt_audio_codec(const char *arg)
2959 {
2960 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2961 }
2962
2963 static void opt_audio_tag(const char *arg)
2964 {
2965 char *tail;
2966 audio_codec_tag= strtol(arg, &tail, 0);
2967
2968 if(!tail || *tail)
2969 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2970 }
2971
2972 static void opt_video_tag(const char *arg)
2973 {
2974 char *tail;
2975 video_codec_tag= strtol(arg, &tail, 0);
2976
2977 if(!tail || *tail)
2978 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2979 }
2980
2981 static void opt_video_codec(const char *arg)
2982 {
2983 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2984 }
2985
2986 static void opt_subtitle_codec(const char *arg)
2987 {
2988 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2989 }
2990
2991 static void opt_subtitle_tag(const char *arg)
2992 {
2993 char *tail;
2994 subtitle_codec_tag= strtol(arg, &tail, 0);
2995
2996 if(!tail || *tail)
2997 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2998 }
2999
3000 static void opt_map(const char *arg)
3001 {
3002 AVStreamMap *m;
3003 char *p;
3004
3005 m = &stream_maps[nb_stream_maps++];
3006
3007 m->file_index = strtol(arg, &p, 0);
3008 if (*p)
3009 p++;
3010
3011 m->stream_index = strtol(p, &p, 0);
3012 if (*p) {
3013 p++;
3014 m->sync_file_index = strtol(p, &p, 0);
3015 if (*p)
3016 p++;
3017 m->sync_stream_index = strtol(p, &p, 0);
3018 } else {
3019 m->sync_file_index = m->file_index;
3020 m->sync_stream_index = m->stream_index;
3021 }
3022 }
3023
3024 static void opt_map_meta_data(const char *arg)
3025 {
3026 AVMetaDataMap *m;
3027 char *p;
3028
3029 m = &meta_data_maps[nb_meta_data_maps++];
3030
3031 m->out_file = strtol(arg, &p, 0);
3032 if (*p)
3033 p++;
3034
3035 m->in_file = strtol(p, &p, 0);
3036 }
3037
3038 static void opt_input_ts_scale(const char *arg)
3039 {
3040 unsigned int stream;
3041 double scale;
3042 char *p;
3043
3044 stream = strtol(arg, &p, 0);
3045 if (*p)
3046 p++;
3047 scale= strtod(p, &p);
3048
3049 if(stream >= MAX_STREAMS)
3050 av_exit(1);
3051
3052 input_files_ts_scale[nb_input_files][stream]= scale;
3053 }
3054
3055 static int opt_recording_time(const char *opt, const char *arg)
3056 {
3057 recording_time = parse_time_or_die(opt, arg, 1);
3058 return 0;
3059 }
3060
3061 static int opt_start_time(const char *opt, const char *arg)
3062 {
3063 start_time = parse_time_or_die(opt, arg, 1);
3064 return 0;
3065 }
3066
3067 static int opt_recording_timestamp(const char *opt, const char *arg)
3068 {
3069 recording_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
3070 return 0;
3071 }
3072
3073 static int opt_input_ts_offset(const char *opt, const char *arg)
3074 {
3075 input_ts_offset = parse_time_or_die(opt, arg, 1);
3076 return 0;
3077 }
3078
3079 static enum CodecID find_codec_or_die(const char *name, int type, int encoder, int strict)
3080 {
3081 const char *codec_string = encoder ? "encoder" : "decoder";
3082 AVCodec *codec;
3083
3084 if(!name)
3085 return CODEC_ID_NONE;
3086 codec = encoder ?
3087 avcodec_find_encoder_by_name(name) :
3088 avcodec_find_decoder_by_name(name);
3089 if(!codec) {
3090 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
3091 av_exit(1);
3092 }
3093 if(codec->type != type) {
3094 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3095 av_exit(1);
3096 }
3097 if(codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
3098 strict > FF_COMPLIANCE_EXPERIMENTAL) {
3099 fprintf(stderr, "%s '%s' is experimental and might produce bad "
3100 "results.\nAdd '-strict experimental' if you want to use it.\n",
3101 codec_string, codec->name);
3102 codec = encoder ?
3103 avcodec_find_encoder(codec->id) :
3104 avcodec_find_decoder(codec->id);
3105 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
3106 fprintf(stderr, "Or use the non experimental %s '%s'.\n",
3107 codec_string, codec->name);
3108 av_exit(1);
3109 }
3110 return codec->id;
3111 }
3112
3113 static void opt_input_file(const char *filename)
3114 {
3115 AVFormatContext *ic;
3116 AVFormatParameters params, *ap = &params;
3117 AVInputFormat *file_iformat = NULL;
3118 int err, i, ret, rfps, rfps_base;
3119 int64_t timestamp;
3120
3121 if (last_asked_format) {
3122 if (!(file_iformat = av_find_input_format(last_asked_format))) {
3123 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
3124 av_exit(1);
3125 }
3126 last_asked_format = NULL;
3127 }
3128
3129 if (!strcmp(filename, "-"))
3130 filename = "pipe:";
3131
3132 using_stdin |= !strncmp(filename, "pipe:", 5) ||
3133 !strcmp(filename, "/dev/stdin");
3134
3135 /* get default parameters from command line */
3136 ic = avformat_alloc_context();
3137 if (!ic) {
3138 print_error(filename, AVERROR(ENOMEM));
3139 av_exit(1);
3140 }
3141
3142 memset(ap, 0, sizeof(*ap));
3143 ap->prealloced_context = 1;
3144 ap->sample_rate = audio_sample_rate;
3145 ap->channels = audio_channels;
3146 ap->time_base.den = frame_rate.num;
3147 ap->time_base.num = frame_rate.den;
3148 ap->width = frame_width;
3149 ap->height = frame_height;
3150 ap->pix_fmt = frame_pix_fmt;
3151 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
3152 ap->channel = video_channel;
3153 ap->standard = video_standard;
3154
3155 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
3156
3157 ic->video_codec_id =
3158 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
3159 avcodec_opts[AVMEDIA_TYPE_VIDEO ]->strict_std_compliance);
3160 ic->audio_codec_id =
3161 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0,
3162 avcodec_opts[AVMEDIA_TYPE_AUDIO ]->strict_std_compliance);
3163 ic->subtitle_codec_id=
3164 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0,
3165 avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
3166 ic->flags |= AVFMT_FLAG_NONBLOCK;
3167
3168 if(pgmyuv_compatibility_hack)
3169 ic->video_codec_id= CODEC_ID_PGMYUV;
3170
3171 /* open the input file with generic libav function */
3172 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
3173 if (err < 0) {
3174 print_error(filename, err);
3175 av_exit(1);
3176 }
3177 if(opt_programid) {
3178 int i, j;
3179 int found=0;
3180 for(i=0; i<ic->nb_streams; i++){
3181 ic->streams[i]->discard= AVDISCARD_ALL;
3182 }
3183 for(i=0; i<ic->nb_programs; i++){
3184 AVProgram *p= ic->programs[i];
3185 if(p->id != opt_programid){
3186 p->discard = AVDISCARD_ALL;
3187 }else{
3188 found=1;
3189 for(j=0; j<p->nb_stream_indexes; j++){
3190 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
3191 }
3192 }
3193 }
3194 if(!found){
3195 fprintf(stderr, "Specified program id not found\n");
3196 av_exit(1);
3197 }
3198 opt_programid=0;
3199 }
3200
3201 ic->loop_input = loop_input;
3202
3203 /* If not enough info to get the stream parameters, we decode the
3204 first frames to get it. (used in mpeg case for example) */
3205 ret = av_find_stream_info(ic);
3206 if (ret < 0 && verbose >= 0) {
3207 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3208 av_exit(1);
3209 }
3210
3211 timestamp = start_time;
3212 /* add the stream start time */
3213 if (ic->start_time != AV_NOPTS_VALUE)
3214 timestamp += ic->start_time;
3215
3216 /* if seeking requested, we execute it */
3217 if (start_time != 0) {
3218 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3219 if (ret < 0) {
3220 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3221 filename, (double)timestamp / AV_TIME_BASE);
3222 }
3223 /* reset seek info */
3224 start_time = 0;
3225 }
3226
3227 /* update the current parameters so that they match the one of the input stream */
3228 for(i=0;i<ic->nb_streams;i++) {
3229 AVStream *st = ic->streams[i];
3230 AVCodecContext *enc = st->codec;
3231 avcodec_thread_init(enc, thread_count);
3232 switch(enc->codec_type) {
3233 case AVMEDIA_TYPE_AUDIO:
3234 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3235 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3236 channel_layout = enc->channel_layout;
3237 audio_channels = enc->channels;
3238 audio_sample_rate = enc->sample_rate;
3239 audio_sample_fmt = enc->sample_fmt;
3240 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3241 if(audio_disable)
3242 st->discard= AVDISCARD_ALL;
3243 break;
3244 case AVMEDIA_TYPE_VIDEO:
3245 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3246 frame_height = enc->height;
3247 frame_width = enc->width;
3248 if(ic->streams[i]->sample_aspect_ratio.num)
3249 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3250 else
3251 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3252 frame_aspect_ratio *= (float) enc->width / enc->height;
3253 frame_pix_fmt = enc->pix_fmt;
3254 rfps = ic->streams[i]->r_frame_rate.num;
3255 rfps_base = ic->streams[i]->r_frame_rate.den;
3256 if(enc->lowres) {
3257 enc->flags |= CODEC_FLAG_EMU_EDGE;
3258 frame_height >>= enc->lowres;
3259 frame_width >>= enc->lowres;
3260 }
3261 if(me_threshold)
3262 enc->debug |= FF_DEBUG_MV;
3263
3264 if (enc->time_base.den != rfps*enc->ticks_per_frame || enc->time_base.num != rfps_base) {
3265
3266 if (verbose >= 0)
3267 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3268 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3269
3270 (float)rfps / rfps_base, rfps, rfps_base);
3271 }
3272 /* update the current frame rate to match the stream frame rate */
3273 frame_rate.num = rfps;
3274 frame_rate.den = rfps_base;
3275
3276 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3277 if(video_disable)
3278 st->discard= AVDISCARD_ALL;
3279 else if(video_discard)
3280 st->discard= video_discard;
3281 break;
3282 case AVMEDIA_TYPE_DATA:
3283 break;
3284 case AVMEDIA_TYPE_SUBTITLE:
3285 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3286 if(subtitle_disable)
3287 st->discard = AVDISCARD_ALL;
3288 break;
3289 case AVMEDIA_TYPE_ATTACHMENT:
3290 case AVMEDIA_TYPE_UNKNOWN:
3291 nb_icodecs++;
3292 break;
3293 default:
3294 abort();
3295 }
3296 }
3297
3298 input_files[nb_input_files] = ic;
3299 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3300 /* dump the file content */
3301 if (verbose >= 0)
3302 dump_format(ic, nb_input_files, filename, 0);
3303
3304 nb_input_files++;
3305
3306 video_channel = 0;
3307
3308 av_freep(&video_codec_name);
3309 av_freep(&audio_codec_name);
3310 av_freep(&subtitle_codec_name);
3311 }
3312
3313 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3314 int *has_subtitle_ptr)
3315 {
3316 int has_video, has_audio, has_subtitle, i, j;
3317 AVFormatContext *ic;
3318
3319 has_video = 0;
3320 has_audio = 0;
3321 has_subtitle = 0;
3322 for(j=0;j<nb_input_files;j++) {
3323 ic = input_files[j];
3324 for(i=0;i<ic->nb_streams;i++) {
3325 AVCodecContext *enc = ic->streams[i]->codec;
3326 switch(enc->codec_type) {
3327 case AVMEDIA_TYPE_AUDIO:
3328 has_audio = 1;
3329 break;
3330 case AVMEDIA_TYPE_VIDEO:
3331 has_video = 1;
3332 break;
3333 case AVMEDIA_TYPE_SUBTITLE:
3334 has_subtitle = 1;
3335 break;
3336 case AVMEDIA_TYPE_DATA:
3337 case AVMEDIA_TYPE_ATTACHMENT:
3338 case AVMEDIA_TYPE_UNKNOWN:
3339 break;
3340 default:
3341 abort();
3342 }
3343 }
3344 }
3345 *has_video_ptr = has_video;
3346 *has_audio_ptr = has_audio;
3347 *has_subtitle_ptr = has_subtitle;
3348 }
3349
3350 static void new_video_stream(AVFormatContext *oc)
3351 {
3352 AVStream *st;
3353 AVCodecContext *video_enc;
3354 enum CodecID codec_id;
3355
3356 st = av_new_stream(oc, oc->nb_streams);
3357 if (!st) {
3358 fprintf(stderr, "Could not alloc stream\n");
3359 av_exit(1);
3360 }
3361 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3362 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3363 video_bitstream_filters= NULL;
3364
3365 avcodec_thread_init(st->codec, thread_count);
3366
3367 video_enc = st->codec;
3368
3369 if(video_codec_tag)
3370 video_enc->codec_tag= video_codec_tag;
3371
3372 if( (video_global_header&1)
3373 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3374 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3375 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3376 }
3377 if(video_global_header&2){
3378 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3379 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3380 }
3381
3382 if (video_stream_copy) {
3383 st->stream_copy = 1;
3384 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3385 video_enc->sample_aspect_ratio =
3386 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3387 } else {
3388 const char *p;
3389 int i;
3390 AVCodec *codec;
3391 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3392
3393 if (video_codec_name) {
3394 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
3395 video_enc->strict_std_compliance);
3396 codec = avcodec_find_encoder_by_name(video_codec_name);
3397 output_codecs[nb_ocodecs] = codec;
3398 } else {
3399 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3400 codec = avcodec_find_encoder(codec_id);
3401 }
3402
3403 video_enc->codec_id = codec_id;
3404
3405 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3406
3407 if (codec && codec->supported_framerates && !force_fps)
3408 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3409 video_enc->time_base.den = fps.num;
3410 video_enc->time_base.num = fps.den;
3411
3412 video_enc->width = frame_width;
3413 video_enc->height = frame_height;
3414 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3415 video_enc->pix_fmt = frame_pix_fmt;
3416 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3417
3418 choose_pixel_fmt(st, codec);
3419
3420 if (intra_only)
3421 video_enc->gop_size = 0;
3422 if (video_qscale || same_quality) {
3423 video_enc->flags |= CODEC_FLAG_QSCALE;
3424 video_enc->global_quality=
3425 st->quality = FF_QP2LAMBDA * video_qscale;
3426 }
3427
3428 if(intra_matrix)
3429 video_enc->intra_matrix = intra_matrix;
3430 if(inter_matrix)
3431 video_enc->inter_matrix = inter_matrix;
3432
3433 p= video_rc_override_string;
3434 for(i=0; p; i++){
3435 int start, end, q;
3436 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3437 if(e!=3){
3438 fprintf(stderr, "error parsing rc_override\n");
3439 av_exit(1);
3440 }
3441 video_enc->rc_override=
3442 av_realloc(video_enc->rc_override,
3443 sizeof(RcOverride)*(i+1));
3444 video_enc->rc_override[i].start_frame= start;
3445 video_enc->rc_override[i].end_frame = end;
3446 if(q>0){
3447 video_enc->rc_override[i].qscale= q;
3448 video_enc->rc_override[i].quality_factor= 1.0;
3449 }
3450 else{
3451 video_enc->rc_override[i].qscale= 0;
3452 video_enc->rc_override[i].quality_factor= -q/100.0;
3453 }
3454 p= strchr(p, '/');
3455 if(p) p++;
3456 }
3457 video_enc->rc_override_count=i;
3458 if (!video_enc->rc_initial_buffer_occupancy)
3459 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3460 video_enc->me_threshold= me_threshold;
3461 video_enc->intra_dc_precision= intra_dc_precision - 8;
3462
3463 if (do_psnr)
3464 video_enc->flags|= CODEC_FLAG_PSNR;
3465
3466 /* two pass mode */
3467 if (do_pass) {
3468 if (do_pass == 1) {
3469 video_enc->flags |= CODEC_FLAG_PASS1;
3470 } else {
3471 video_enc->flags |= CODEC_FLAG_PASS2;
3472 }
3473 }
3474 }
3475 nb_ocodecs++;
3476 if (video_language) {
3477 av_metadata_set2(&st->metadata, "language", video_language, 0);
3478 av_freep(&video_language);
3479 }
3480
3481 /* reset some key parameters */
3482 video_disable = 0;
3483 av_freep(&video_codec_name);
3484 video_stream_copy = 0;
3485 frame_pix_fmt = PIX_FMT_NONE;
3486 }
3487
3488 static void new_audio_stream(AVFormatContext *oc)
3489 {
3490 AVStream *st;
3491 AVCodecContext *audio_enc;
3492 enum CodecID codec_id;
3493
3494 st = av_new_stream(oc, oc->nb_streams);
3495 if (!st) {
3496 fprintf(stderr, "Could not alloc stream\n");
3497 av_exit(1);
3498 }
3499 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3500
3501 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3502 audio_bitstream_filters= NULL;
3503
3504 avcodec_thread_init(st->codec, thread_count);
3505
3506 audio_enc = st->codec;
3507 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3508
3509 if(audio_codec_tag)
3510 audio_enc->codec_tag= audio_codec_tag;
3511
3512 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3513 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3514 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3515 }
3516 if (audio_stream_copy) {
3517 st->stream_copy = 1;
3518 audio_enc->channels = audio_channels;
3519 audio_enc->sample_rate = audio_sample_rate;
3520 } else {
3521 AVCodec *codec;
3522
3523 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3524
3525 if (audio_codec_name) {
3526 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
3527 audio_enc->strict_std_compliance);
3528 codec = avcodec_find_encoder_by_name(audio_codec_name);
3529 output_codecs[nb_ocodecs] = codec;
3530 } else {
3531 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3532 codec = avcodec_find_encoder(codec_id);
3533 }
3534 audio_enc->codec_id = codec_id;
3535
3536 if (audio_qscale > QSCALE_NONE) {
3537 audio_enc->flags |= CODEC_FLAG_QSCALE;
3538 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3539 }
3540 audio_enc->channels = audio_channels;
3541 audio_enc->sample_fmt = audio_sample_fmt;
3542 audio_enc->sample_rate = audio_sample_rate;
3543 audio_enc->channel_layout = channel_layout;
3544 if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3545 audio_enc->channel_layout = 0;
3546 choose_sample_fmt(st, codec);
3547 choose_sample_rate(st, codec);
3548 }
3549 nb_ocodecs++;
3550 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3551 if (audio_language) {
3552 av_metadata_set2(&st->metadata, "language", audio_language, 0);
3553 av_freep(&audio_language);
3554 }
3555
3556 /* reset some key parameters */
3557 audio_disable = 0;
3558 av_freep(&audio_codec_name);
3559 audio_stream_copy = 0;
3560 }
3561
3562 static void new_subtitle_stream(AVFormatContext *oc)
3563 {
3564 AVStream *st;
3565 AVCodecContext *subtitle_enc;
3566
3567 st = av_new_stream(oc, oc->nb_streams);
3568 if (!st) {
3569 fprintf(stderr, "Could not alloc stream\n");
3570 av_exit(1);
3571 }
3572 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3573
3574 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3575 subtitle_bitstream_filters= NULL;
3576
3577 subtitle_enc = st->codec;
3578 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3579
3580 if(subtitle_codec_tag)
3581 subtitle_enc->codec_tag= subtitle_codec_tag;
3582
3583 if (subtitle_stream_copy) {
3584 st->stream_copy = 1;
3585 } else {
3586 set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3587 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
3588 subtitle_enc->strict_std_compliance);
3589 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3590 }
3591 nb_ocodecs++;
3592
3593 if (subtitle_language) {
3594 av_metadata_set2(&st->metadata, "language", subtitle_language, 0);
3595 av_freep(&subtitle_language);
3596 }
3597
3598 subtitle_disable = 0;
3599 av_freep(&subtitle_codec_name);
3600 subtitle_stream_copy = 0;
3601 }
3602
3603 static void opt_new_audio_stream(void)
3604 {
3605 AVFormatContext *oc;
3606 if (nb_output_files <= 0) {
3607 fprintf(stderr, "At least one output file must be specified\n");
3608 av_exit(1);
3609 }
3610 oc = output_files[nb_output_files - 1];
3611 new_audio_stream(oc);
3612 }
3613
3614 static void opt_new_video_stream(void)
3615 {
3616 AVFormatContext *oc;
3617 if (nb_output_files <= 0) {
3618 fprintf(stderr, "At least one output file must be specified\n");
3619 av_exit(1);
3620 }
3621 oc = output_files[nb_output_files - 1];
3622 new_video_stream(oc);
3623 }
3624
3625 static void opt_new_subtitle_stream(void)
3626 {
3627 AVFormatContext *oc;
3628 if (nb_output_files <= 0) {
3629 fprintf(stderr, "At least one output file must be specified\n");
3630 av_exit(1);
3631 }
3632 oc = output_files[nb_output_files - 1];
3633 new_subtitle_stream(oc);
3634 }
3635
3636 static void opt_output_file(const char *filename)
3637 {
3638 AVFormatContext *oc;
3639 int err, use_video, use_audio, use_subtitle;
3640 int input_has_video, input_has_audio, input_has_subtitle;
3641 AVFormatParameters params, *ap = &params;
3642 AVOutputFormat *file_oformat;
3643
3644 if (!strcmp(filename, "-"))
3645 filename = "pipe:";
3646
3647 oc = avformat_alloc_context();
3648 if (!oc) {
3649 print_error(filename, AVERROR(ENOMEM));
3650 av_exit(1);
3651 }
3652
3653 if (last_asked_format) {
3654 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3655 if (!file_oformat) {
3656 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3657 av_exit(1);
3658 }
3659 last_asked_format = NULL;
3660 } else {
3661 file_oformat = av_guess_format(NULL, filename, NULL);
3662 if (!file_oformat) {
3663 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3664 filename);
3665 av_exit(1);
3666 }
3667 }
3668
3669 oc->oformat = file_oformat;
3670 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3671
3672 if (!strcmp(file_oformat->name, "ffm") &&
3673 av_strstart(filename, "http:", NULL)) {
3674 /* special case for files sent to ffserver: we get the stream
3675 parameters from ffserver */
3676 int err = read_ffserver_streams(oc, filename);
3677 if (err < 0) {
3678 print_error(filename, err);
3679 av_exit(1);
3680 }
3681 } else {
3682 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3683 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3684 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3685
3686 /* disable if no corresponding type found and at least one
3687 input file */
3688 if (nb_input_files > 0) {
3689 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3690 &input_has_subtitle);
3691 if (!input_has_video)
3692 use_video = 0;
3693 if (!input_has_audio)
3694 use_audio = 0;
3695 if (!input_has_subtitle)
3696 use_subtitle = 0;
3697 }
3698
3699 /* manual disable */
3700 if (audio_disable) {
3701 use_audio = 0;
3702 }
3703 if (video_disable) {
3704 use_video = 0;
3705 }
3706 if (subtitle_disable) {
3707 use_subtitle = 0;
3708 }
3709
3710 if (use_video) {
3711 new_video_stream(oc);