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83680786c86ed7874190b11d6a4da3c006ee2908
[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 "libavutil/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 /* indexed by output file stream index */
125 static int streamid_map[MAX_STREAMS];
126
127 static int frame_width = 0;
128 static int frame_height = 0;
129 static float frame_aspect_ratio = 0;
130 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
131 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
132 static int frame_topBand = 0;
133 static int frame_bottomBand = 0;
134 static int frame_leftBand = 0;
135 static int frame_rightBand = 0;
136 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
137 static AVRational frame_rate;
138 static float video_qscale = 0;
139 static uint16_t *intra_matrix = NULL;
140 static uint16_t *inter_matrix = NULL;
141 static const char *video_rc_override_string=NULL;
142 static int video_disable = 0;
143 static int video_discard = 0;
144 static char *video_codec_name = NULL;
145 static unsigned int video_codec_tag = 0;
146 static char *video_language = NULL;
147 static int same_quality = 0;
148 static int do_deinterlace = 0;
149 static int top_field_first = -1;
150 static int me_threshold = 0;
151 static int intra_dc_precision = 8;
152 static int loop_input = 0;
153 static int loop_output = AVFMT_NOOUTPUTLOOP;
154 static int qp_hist = 0;
155 #if CONFIG_AVFILTER
156 static char *vfilters = NULL;
157 AVFilterGraph *graph = NULL;
158 #endif
159
160 static int intra_only = 0;
161 static int audio_sample_rate = 44100;
162 static int64_t channel_layout = 0;
163 #define QSCALE_NONE -99999
164 static float audio_qscale = QSCALE_NONE;
165 static int audio_disable = 0;
166 static int audio_channels = 1;
167 static char *audio_codec_name = NULL;
168 static unsigned int audio_codec_tag = 0;
169 static char *audio_language = NULL;
170
171 static int subtitle_disable = 0;
172 static char *subtitle_codec_name = NULL;
173 static char *subtitle_language = NULL;
174 static unsigned int subtitle_codec_tag = 0;
175
176 static float mux_preload= 0.5;
177 static float mux_max_delay= 0.7;
178
179 static int64_t recording_time = INT64_MAX;
180 static int64_t start_time = 0;
181 static int64_t recording_timestamp = 0;
182 static int64_t input_ts_offset = 0;
183 static int file_overwrite = 0;
184 static int metadata_count;
185 static AVMetadataTag *metadata;
186 static int do_benchmark = 0;
187 static int do_hex_dump = 0;
188 static int do_pkt_dump = 0;
189 static int do_psnr = 0;
190 static int do_pass = 0;
191 static char *pass_logfilename_prefix = NULL;
192 static int audio_stream_copy = 0;
193 static int video_stream_copy = 0;
194 static int subtitle_stream_copy = 0;
195 static int video_sync_method= -1;
196 static int audio_sync_method= 0;
197 static float audio_drift_threshold= 0.1;
198 static int copy_ts= 0;
199 static int opt_shortest = 0;
200 static int video_global_header = 0;
201 static char *vstats_filename;
202 static FILE *vstats_file;
203 static int opt_programid = 0;
204 static int copy_initial_nonkeyframes = 0;
205
206 static int rate_emu = 0;
207
208 static int video_channel = 0;
209 static char *video_standard;
210
211 static int audio_volume = 256;
212
213 static int exit_on_error = 0;
214 static int using_stdin = 0;
215 static int verbose = 1;
216 static int thread_count= 1;
217 static int q_pressed = 0;
218 static int64_t video_size = 0;
219 static int64_t audio_size = 0;
220 static int64_t extra_size = 0;
221 static int nb_frames_dup = 0;
222 static int nb_frames_drop = 0;
223 static int input_sync;
224 static uint64_t limit_filesize = 0;
225 static int force_fps = 0;
226
227 static int pgmyuv_compatibility_hack=0;
228 static float dts_delta_threshold = 10;
229
230 static unsigned int sws_flags = SWS_BICUBIC;
231
232 static int64_t timer_start;
233
234 static uint8_t *audio_buf;
235 static uint8_t *audio_out;
236 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
237
238 static short *samples;
239
240 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
241 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
242 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
243 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
244
245 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
246
247 struct AVInputStream;
248
249 typedef struct AVOutputStream {
250 int file_index; /* file index */
251 int index; /* stream index in the output file */
252 int source_index; /* AVInputStream index */
253 AVStream *st; /* stream in the output file */
254 int encoding_needed; /* true if encoding needed for this stream */
255 int frame_number;
256 /* input pts and corresponding output pts
257 for A/V sync */
258 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
259 struct AVInputStream *sync_ist; /* input stream to sync against */
260 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
261 /* video only */
262 int video_resample;
263 AVFrame pict_tmp; /* temporary image for resampling */
264 struct SwsContext *img_resample_ctx; /* for image resampling */
265 int resample_height;
266 int resample_width;
267 int resample_pix_fmt;
268
269 /* full frame size of first frame */
270 int original_height;
271 int original_width;
272
273 /* cropping area sizes */
274 int video_crop;
275 int topBand;
276 int bottomBand;
277 int leftBand;
278 int rightBand;
279
280 /* cropping area of first frame */
281 int original_topBand;
282 int original_bottomBand;
283 int original_leftBand;
284 int original_rightBand;
285
286 /* audio only */
287 int audio_resample;
288 ReSampleContext *resample; /* for audio resampling */
289 int reformat_pair;
290 AVAudioConvert *reformat_ctx;
291 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
292 FILE *logfile;
293 } AVOutputStream;
294
295 typedef struct AVInputStream {
296 int file_index;
297 int index;
298 AVStream *st;
299 int discard; /* true if stream data should be discarded */
300 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
301 int64_t sample_index; /* current sample */
302
303 int64_t start; /* time when read started */
304 int64_t next_pts; /* synthetic pts for cases where pkt.pts
305 is not defined */
306 int64_t pts; /* current pts */
307 int is_start; /* is 1 at the start and after a discontinuity */
308 int showed_multi_packet_warning;
309 int is_past_recording_time;
310 #if CONFIG_AVFILTER
311 AVFilterContext *out_video_filter;
312 AVFilterContext *input_video_filter;
313 AVFrame *filter_frame;
314 int has_filter_frame;
315 AVFilterPicRef *picref;
316 #endif
317 } AVInputStream;
318
319 typedef struct AVInputFile {
320 int eof_reached; /* true if eof reached */
321 int ist_index; /* index of first stream in ist_table */
322 int buffer_size; /* current total buffer size */
323 int nb_streams; /* nb streams we are aware of */
324 } AVInputFile;
325
326 #if HAVE_TERMIOS_H
327
328 /* init terminal so that we can grab keys */
329 static struct termios oldtty;
330 #endif
331
332 #if CONFIG_AVFILTER
333 typedef struct {
334 int pix_fmt;
335 } FilterOutPriv;
336
337
338 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
339 {
340 FilterOutPriv *priv = ctx->priv;
341
342 if(!opaque) return -1;
343
344 priv->pix_fmt = *((int *)opaque);
345
346 return 0;
347 }
348
349 static void output_end_frame(AVFilterLink *link)
350 {
351 }
352
353 static int output_query_formats(AVFilterContext *ctx)
354 {
355 FilterOutPriv *priv = ctx->priv;
356 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
357
358 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
359 return 0;
360 }
361
362 static int get_filtered_video_pic(AVFilterContext *ctx,
363 AVFilterPicRef **picref, AVFrame *pic2,
364 uint64_t *pts)
365 {
366 AVFilterPicRef *pic;
367
368 if(avfilter_request_frame(ctx->inputs[0]))
369 return -1;
370 if(!(pic = ctx->inputs[0]->cur_pic))
371 return -1;
372 *picref = pic;
373 ctx->inputs[0]->cur_pic = NULL;
374
375 *pts = pic->pts;
376
377 memcpy(pic2->data, pic->data, sizeof(pic->data));
378 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
379 pic2->interlaced_frame = pic->interlaced;
380 pic2->top_field_first = pic->top_field_first;
381
382 return 1;
383 }
384
385 static AVFilter output_filter =
386 {
387 .name = "ffmpeg_output",
388
389 .priv_size = sizeof(FilterOutPriv),
390 .init = output_init,
391
392 .query_formats = output_query_formats,
393
394 .inputs = (AVFilterPad[]) {{ .name = "default",
395 .type = AVMEDIA_TYPE_VIDEO,
396 .end_frame = output_end_frame,
397 .min_perms = AV_PERM_READ, },
398 { .name = NULL }},
399 .outputs = (AVFilterPad[]) {{ .name = NULL }},
400 };
401
402 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
403 {
404 AVFilterContext *last_filter, *filter;
405 /** filter graph containing all filters including input & output */
406 AVCodecContext *codec = ost->st->codec;
407 AVCodecContext *icodec = ist->st->codec;
408 char args[255];
409
410 graph = av_mallocz(sizeof(AVFilterGraph));
411
412 if (!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
413 return -1;
414 if (!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
415 return -1;
416
417 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
418 ist->st->codec->height, ist->st->codec->pix_fmt);
419 if (avfilter_init_filter(ist->input_video_filter, args, NULL))
420 return -1;
421 if (avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
422 return -1;
423
424 /* add input and output filters to the overall graph */
425 avfilter_graph_add_filter(graph, ist->input_video_filter);
426 avfilter_graph_add_filter(graph, ist->out_video_filter);
427
428 last_filter = ist->input_video_filter;
429
430 if (ost->video_crop) {
431 snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
432 codec->width,
433 codec->height);
434 filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
435 if (!filter)
436 return -1;
437 if (avfilter_init_filter(filter, args, NULL))
438 return -1;
439 if (avfilter_link(last_filter, 0, filter, 0))
440 return -1;
441 last_filter = filter;
442 avfilter_graph_add_filter(graph, last_filter);
443 }
444
445 if((codec->width !=
446 icodec->width - (frame_leftBand + frame_rightBand)) ||
447 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
448 snprintf(args, 255, "%d:%d:flags=0x%X",
449 codec->width,
450 codec->height,
451 (int)av_get_int(sws_opts, "sws_flags", NULL));
452 filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
453 if (!filter)
454 return -1;
455 if (avfilter_init_filter(filter, args, NULL))
456 return -1;
457 if (avfilter_link(last_filter, 0, filter, 0))
458 return -1;
459 last_filter = filter;
460 avfilter_graph_add_filter(graph, last_filter);
461 }
462
463 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
464 graph->scale_sws_opts = av_strdup(args);
465
466 if (vfilters) {
467 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
468 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
469
470 outputs->name = av_strdup("in");
471 outputs->filter = last_filter;
472 outputs->pad_idx = 0;
473 outputs->next = NULL;
474
475 inputs->name = av_strdup("out");
476 inputs->filter = ist->out_video_filter;
477 inputs->pad_idx = 0;
478 inputs->next = NULL;
479
480 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
481 return -1;
482 av_freep(&vfilters);
483 } else {
484 if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
485 return -1;
486 }
487
488 /* configure all the filter links */
489 if (avfilter_graph_check_validity(graph, NULL))
490 return -1;
491 if (avfilter_graph_config_formats(graph, NULL))
492 return -1;
493 if (avfilter_graph_config_links(graph, NULL))
494 return -1;
495
496 codec->width = ist->out_video_filter->inputs[0]->w;
497 codec->height = ist->out_video_filter->inputs[0]->h;
498
499 return 0;
500 }
501 #endif /* CONFIG_AVFILTER */
502
503 static void term_exit(void)
504 {
505 #if HAVE_TERMIOS_H
506 tcsetattr (0, TCSANOW, &oldtty);
507 #endif
508 }
509
510 static volatile int received_sigterm = 0;
511
512 static void
513 sigterm_handler(int sig)
514 {
515 received_sigterm = sig;
516 term_exit();
517 }
518
519 static void term_init(void)
520 {
521 #if HAVE_TERMIOS_H
522 struct termios tty;
523
524 tcgetattr (0, &tty);
525 oldtty = tty;
526 atexit(term_exit);
527
528 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
529 |INLCR|IGNCR|ICRNL|IXON);
530 tty.c_oflag |= OPOST;
531 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
532 tty.c_cflag &= ~(CSIZE|PARENB);
533 tty.c_cflag |= CS8;
534 tty.c_cc[VMIN] = 1;
535 tty.c_cc[VTIME] = 0;
536
537 tcsetattr (0, TCSANOW, &tty);
538 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
539 #endif
540
541 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
542 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
543 #ifdef SIGXCPU
544 signal(SIGXCPU, sigterm_handler);
545 #endif
546 }
547
548 /* read a key without blocking */
549 static int read_key(void)
550 {
551 #if HAVE_TERMIOS_H
552 int n = 1;
553 unsigned char ch;
554 struct timeval tv;
555 fd_set rfds;
556
557 FD_ZERO(&rfds);
558 FD_SET(0, &rfds);
559 tv.tv_sec = 0;
560 tv.tv_usec = 0;
561 n = select(1, &rfds, NULL, NULL, &tv);
562 if (n > 0) {
563 n = read(0, &ch, 1);
564 if (n == 1)
565 return ch;
566
567 return n;
568 }
569 #elif HAVE_CONIO_H
570 if(kbhit())
571 return(getch());
572 #endif
573 return -1;
574 }
575
576 static int decode_interrupt_cb(void)
577 {
578 return q_pressed || (q_pressed = read_key() == 'q');
579 }
580
581 static int av_exit(int ret)
582 {
583 int i;
584
585 /* close files */
586 for(i=0;i<nb_output_files;i++) {
587 /* maybe av_close_output_file ??? */
588 AVFormatContext *s = output_files[i];
589 int j;
590 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
591 url_fclose(s->pb);
592 for(j=0;j<s->nb_streams;j++) {
593 av_metadata_free(&s->streams[j]->metadata);
594 av_free(s->streams[j]->codec);
595 av_free(s->streams[j]);
596 }
597 for(j=0;j<s->nb_programs;j++) {
598 av_metadata_free(&s->programs[j]->metadata);
599 }
600 for(j=0;j<s->nb_chapters;j++) {
601 av_metadata_free(&s->chapters[j]->metadata);
602 }
603 av_metadata_free(&s->metadata);
604 av_free(s);
605 }
606 for(i=0;i<nb_input_files;i++)
607 av_close_input_file(input_files[i]);
608
609 av_free(intra_matrix);
610 av_free(inter_matrix);
611
612 if (vstats_file)
613 fclose(vstats_file);
614 av_free(vstats_filename);
615
616 av_free(opt_names);
617
618 av_free(video_codec_name);
619 av_free(audio_codec_name);
620 av_free(subtitle_codec_name);
621
622 av_free(video_standard);
623
624 for (i=0;i<AVMEDIA_TYPE_NB;i++)
625 av_free(avcodec_opts[i]);
626 av_free(avformat_opts);
627 av_free(sws_opts);
628 av_free(audio_buf);
629 av_free(audio_out);
630 allocated_audio_buf_size= allocated_audio_out_size= 0;
631 av_free(samples);
632
633 #if CONFIG_AVFILTER
634 avfilter_uninit();
635 #endif
636
637 if (received_sigterm) {
638 fprintf(stderr,
639 "Received signal %d: terminating.\n",
640 (int) received_sigterm);
641 exit (255);
642 }
643
644 exit(ret); /* not all OS-es handle main() return value */
645 return ret;
646 }
647
648 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
649 {
650 if(codec && codec->sample_fmts){
651 const enum SampleFormat *p= codec->sample_fmts;
652 for(; *p!=-1; p++){
653 if(*p == st->codec->sample_fmt)
654 break;
655 }
656 if(*p == -1)
657 st->codec->sample_fmt = codec->sample_fmts[0];
658 }
659 }
660
661 static void choose_sample_rate(AVStream *st, AVCodec *codec)
662 {
663 if(codec && codec->supported_samplerates){
664 const int *p= codec->supported_samplerates;
665 int best=0;
666 int best_dist=INT_MAX;
667 for(; *p; p++){
668 int dist= abs(st->codec->sample_rate - *p);
669 if(dist < best_dist){
670 best_dist= dist;
671 best= *p;
672 }
673 }
674 if(best_dist){
675 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
676 }
677 st->codec->sample_rate= best;
678 }
679 }
680
681 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
682 {
683 if(codec && codec->pix_fmts){
684 const enum PixelFormat *p= codec->pix_fmts;
685 for(; *p!=-1; p++){
686 if(*p == st->codec->pix_fmt)
687 break;
688 }
689 if(*p == -1
690 && !( st->codec->codec_id==CODEC_ID_MJPEG
691 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
692 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
693 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
694 st->codec->pix_fmt = codec->pix_fmts[0];
695 }
696 }
697
698 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
699 {
700 int i, err;
701 AVFormatContext *ic;
702 int nopts = 0;
703
704 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
705 if (err < 0)
706 return err;
707 /* copy stream format */
708 s->nb_streams = ic->nb_streams;
709 for(i=0;i<ic->nb_streams;i++) {
710 AVStream *st;
711 AVCodec *codec;
712
713 // FIXME: a more elegant solution is needed
714 st = av_mallocz(sizeof(AVStream));
715 memcpy(st, ic->streams[i], sizeof(AVStream));
716 st->codec = avcodec_alloc_context();
717 if (!st->codec) {
718 print_error(filename, AVERROR(ENOMEM));
719 av_exit(1);
720 }
721 avcodec_copy_context(st->codec, ic->streams[i]->codec);
722 s->streams[i] = st;
723
724 codec = avcodec_find_encoder(st->codec->codec_id);
725 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
726 if (audio_stream_copy) {
727 st->stream_copy = 1;
728 } else
729 choose_sample_fmt(st, codec);
730 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
731 if (video_stream_copy) {
732 st->stream_copy = 1;
733 } else
734 choose_pixel_fmt(st, codec);
735 }
736
737 if(!st->codec->thread_count)
738 st->codec->thread_count = 1;
739 if(st->codec->thread_count>1)
740 avcodec_thread_init(st->codec, st->codec->thread_count);
741
742 if(st->codec->flags & CODEC_FLAG_BITEXACT)
743 nopts = 1;
744 }
745
746 if (!nopts)
747 s->timestamp = av_gettime();
748
749 av_close_input_file(ic);
750 return 0;
751 }
752
753 static double
754 get_sync_ipts(const AVOutputStream *ost)
755 {
756 const AVInputStream *ist = ost->sync_ist;
757 return (double)(ist->pts - start_time)/AV_TIME_BASE;
758 }
759
760 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
761 int ret;
762
763 while(bsfc){
764 AVPacket new_pkt= *pkt;
765 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
766 &new_pkt.data, &new_pkt.size,
767 pkt->data, pkt->size,
768 pkt->flags & AV_PKT_FLAG_KEY);
769 if(a>0){
770 av_free_packet(pkt);
771 new_pkt.destruct= av_destruct_packet;
772 } else if(a<0){
773 fprintf(stderr, "%s failed for stream %d, codec %s",
774 bsfc->filter->name, pkt->stream_index,
775 avctx->codec ? avctx->codec->name : "copy");
776 print_error("", a);
777 if (exit_on_error)
778 av_exit(1);
779 }
780 *pkt= new_pkt;
781
782 bsfc= bsfc->next;
783 }
784
785 ret= av_interleaved_write_frame(s, pkt);
786 if(ret < 0){
787 print_error("av_interleaved_write_frame()", ret);
788 av_exit(1);
789 }
790 }
791
792 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
793
794 static void do_audio_out(AVFormatContext *s,
795 AVOutputStream *ost,
796 AVInputStream *ist,
797 unsigned char *buf, int size)
798 {
799 uint8_t *buftmp;
800 int64_t audio_out_size, audio_buf_size;
801 int64_t allocated_for_size= size;
802
803 int size_out, frame_bytes, ret;
804 AVCodecContext *enc= ost->st->codec;
805 AVCodecContext *dec= ist->st->codec;
806 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
807 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
808 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
809
810 need_realloc:
811 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
812 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
813 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
814 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
815 audio_buf_size*= osize*enc->channels;
816
817 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
818 if(coded_bps > 8*osize)
819 audio_out_size= audio_out_size * coded_bps / (8*osize);
820 audio_out_size += FF_MIN_BUFFER_SIZE;
821
822 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
823 fprintf(stderr, "Buffer sizes too large\n");
824 av_exit(1);
825 }
826
827 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
828 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
829 if (!audio_buf || !audio_out){
830 fprintf(stderr, "Out of memory in do_audio_out\n");
831 av_exit(1);
832 }
833
834 if (enc->channels != dec->channels)
835 ost->audio_resample = 1;
836
837 if (ost->audio_resample && !ost->resample) {
838 if (dec->sample_fmt != SAMPLE_FMT_S16)
839 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
840 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
841 enc->sample_rate, dec->sample_rate,
842 enc->sample_fmt, dec->sample_fmt,
843 16, 10, 0, 0.8);
844 if (!ost->resample) {
845 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
846 dec->channels, dec->sample_rate,
847 enc->channels, enc->sample_rate);
848 av_exit(1);
849 }
850 }
851
852 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
853 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
854 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
855 if (ost->reformat_ctx)
856 av_audio_convert_free(ost->reformat_ctx);
857 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
858 dec->sample_fmt, 1, NULL, 0);
859 if (!ost->reformat_ctx) {
860 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
861 avcodec_get_sample_fmt_name(dec->sample_fmt),
862 avcodec_get_sample_fmt_name(enc->sample_fmt));
863 av_exit(1);
864 }
865 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
866 }
867
868 if(audio_sync_method){
869 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
870 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
871 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
872 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
873
874 //FIXME resample delay
875 if(fabs(delta) > 50){
876 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
877 if(byte_delta < 0){
878 byte_delta= FFMAX(byte_delta, -size);
879 size += byte_delta;
880 buf -= byte_delta;
881 if(verbose > 2)
882 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
883 if(!size)
884 return;
885 ist->is_start=0;
886 }else{
887 static uint8_t *input_tmp= NULL;
888 input_tmp= av_realloc(input_tmp, byte_delta + size);
889
890 if(byte_delta > allocated_for_size - size){
891 allocated_for_size= byte_delta + (int64_t)size;
892 goto need_realloc;
893 }
894 ist->is_start=0;
895
896 memset(input_tmp, 0, byte_delta);
897 memcpy(input_tmp + byte_delta, buf, size);
898 buf= input_tmp;
899 size += byte_delta;
900 if(verbose > 2)
901 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
902 }
903 }else if(audio_sync_method>1){
904 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
905 assert(ost->audio_resample);
906 if(verbose > 2)
907 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
908 // 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));
909 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
910 }
911 }
912 }else
913 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
914 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
915
916 if (ost->audio_resample) {
917 buftmp = audio_buf;
918 size_out = audio_resample(ost->resample,
919 (short *)buftmp, (short *)buf,
920 size / (ist->st->codec->channels * isize));
921 size_out = size_out * enc->channels * osize;
922 } else {
923 buftmp = buf;
924 size_out = size;
925 }
926
927 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
928 const void *ibuf[6]= {buftmp};
929 void *obuf[6]= {audio_buf};
930 int istride[6]= {isize};
931 int ostride[6]= {osize};
932 int len= size_out/istride[0];
933 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
934 printf("av_audio_convert() failed\n");
935 if (exit_on_error)
936 av_exit(1);
937 return;
938 }
939 buftmp = audio_buf;
940 size_out = len*osize;
941 }
942
943 /* now encode as many frames as possible */
944 if (enc->frame_size > 1) {
945 /* output resampled raw samples */
946 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
947 fprintf(stderr, "av_fifo_realloc2() failed\n");
948 av_exit(1);
949 }
950 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
951
952 frame_bytes = enc->frame_size * osize * enc->channels;
953
954 while (av_fifo_size(ost->fifo) >= frame_bytes) {
955 AVPacket pkt;
956 av_init_packet(&pkt);
957
958 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
959
960 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
961
962 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
963 (short *)audio_buf);
964 if (ret < 0) {
965 fprintf(stderr, "Audio encoding failed\n");
966 av_exit(1);
967 }
968 audio_size += ret;
969 pkt.stream_index= ost->index;
970 pkt.data= audio_out;
971 pkt.size= ret;
972 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
973 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
974 pkt.flags |= AV_PKT_FLAG_KEY;
975 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
976
977 ost->sync_opts += enc->frame_size;
978 }
979 } else {
980 AVPacket pkt;
981 av_init_packet(&pkt);
982
983 ost->sync_opts += size_out / (osize * enc->channels);
984
985 /* output a pcm frame */
986 /* determine the size of the coded buffer */
987 size_out /= osize;
988 if (coded_bps)
989 size_out = size_out*coded_bps/8;
990
991 if(size_out > audio_out_size){
992 fprintf(stderr, "Internal error, buffer size too small\n");
993 av_exit(1);
994 }
995
996 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
997 ret = avcodec_encode_audio(enc, audio_out, size_out,
998 (short *)buftmp);
999 if (ret < 0) {
1000 fprintf(stderr, "Audio encoding failed\n");
1001 av_exit(1);
1002 }
1003 audio_size += ret;
1004 pkt.stream_index= ost->index;
1005 pkt.data= audio_out;
1006 pkt.size= ret;
1007 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1008 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1009 pkt.flags |= AV_PKT_FLAG_KEY;
1010 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1011 }
1012 }
1013
1014 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1015 {
1016 AVCodecContext *dec;
1017 AVPicture *picture2;
1018 AVPicture picture_tmp;
1019 uint8_t *buf = 0;
1020
1021 dec = ist->st->codec;
1022
1023 /* deinterlace : must be done before any resize */
1024 if (do_deinterlace) {
1025 int size;
1026
1027 /* create temporary picture */
1028 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1029 buf = av_malloc(size);
1030 if (!buf)
1031 return;
1032
1033 picture2 = &picture_tmp;
1034 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1035
1036 if(avpicture_deinterlace(picture2, picture,
1037 dec->pix_fmt, dec->width, dec->height) < 0) {
1038 /* if error, do not deinterlace */
1039 fprintf(stderr, "Deinterlacing failed\n");
1040 av_free(buf);
1041 buf = NULL;
1042 picture2 = picture;
1043 }
1044 } else {
1045 picture2 = picture;
1046 }
1047
1048 if (picture != picture2)
1049 *picture = *picture2;
1050 *bufp = buf;
1051 }
1052
1053 /* we begin to correct av delay at this threshold */
1054 #define AV_DELAY_MAX 0.100
1055
1056 static void do_subtitle_out(AVFormatContext *s,
1057 AVOutputStream *ost,
1058 AVInputStream *ist,
1059 AVSubtitle *sub,
1060 int64_t pts)
1061 {
1062 static uint8_t *subtitle_out = NULL;
1063 int subtitle_out_max_size = 1024 * 1024;
1064 int subtitle_out_size, nb, i;
1065 AVCodecContext *enc;
1066 AVPacket pkt;
1067
1068 if (pts == AV_NOPTS_VALUE) {
1069 fprintf(stderr, "Subtitle packets must have a pts\n");
1070 if (exit_on_error)
1071 av_exit(1);
1072 return;
1073 }
1074
1075 enc = ost->st->codec;
1076
1077 if (!subtitle_out) {
1078 subtitle_out = av_malloc(subtitle_out_max_size);
1079 }
1080
1081 /* Note: DVB subtitle need one packet to draw them and one other
1082 packet to clear them */
1083 /* XXX: signal it in the codec context ? */
1084 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1085 nb = 2;
1086 else
1087 nb = 1;
1088
1089 for(i = 0; i < nb; i++) {
1090 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1091 // start_display_time is required to be 0
1092 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1093 sub->end_display_time -= sub->start_display_time;
1094 sub->start_display_time = 0;
1095 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1096 subtitle_out_max_size, sub);
1097 if (subtitle_out_size < 0) {
1098 fprintf(stderr, "Subtitle encoding failed\n");
1099 av_exit(1);
1100 }
1101
1102 av_init_packet(&pkt);
1103 pkt.stream_index = ost->index;
1104 pkt.data = subtitle_out;
1105 pkt.size = subtitle_out_size;
1106 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1107 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1108 /* XXX: the pts correction is handled here. Maybe handling
1109 it in the codec would be better */
1110 if (i == 0)
1111 pkt.pts += 90 * sub->start_display_time;
1112 else
1113 pkt.pts += 90 * sub->end_display_time;
1114 }
1115 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1116 }
1117 }
1118
1119 static int bit_buffer_size= 1024*256;
1120 static uint8_t *bit_buffer= NULL;
1121
1122 static void do_video_out(AVFormatContext *s,
1123 AVOutputStream *ost,
1124 AVInputStream *ist,
1125 AVFrame *in_picture,
1126 int *frame_size)
1127 {
1128 int nb_frames, i, ret;
1129 #if !CONFIG_AVFILTER
1130 int64_t topBand, bottomBand, leftBand, rightBand;
1131 #endif
1132 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1133 AVFrame picture_crop_temp, picture_pad_temp;
1134 AVCodecContext *enc, *dec;
1135 double sync_ipts;
1136
1137 avcodec_get_frame_defaults(&picture_crop_temp);
1138 avcodec_get_frame_defaults(&picture_pad_temp);
1139
1140 enc = ost->st->codec;
1141 dec = ist->st->codec;
1142
1143 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1144
1145 /* by default, we output a single frame */
1146 nb_frames = 1;
1147
1148 *frame_size = 0;
1149
1150 if(video_sync_method){
1151 double vdelta = sync_ipts - ost->sync_opts;
1152 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1153 if (vdelta < -1.1)
1154 nb_frames = 0;
1155 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1156 if(vdelta<=-0.6){
1157 nb_frames=0;
1158 }else if(vdelta>0.6)
1159 ost->sync_opts= lrintf(sync_ipts);
1160 }else if (vdelta > 1.1)
1161 nb_frames = lrintf(vdelta);
1162 //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);
1163 if (nb_frames == 0){
1164 ++nb_frames_drop;
1165 if (verbose>2)
1166 fprintf(stderr, "*** drop!\n");
1167 }else if (nb_frames > 1) {
1168 nb_frames_dup += nb_frames - 1;
1169 if (verbose>2)
1170 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1171 }
1172 }else
1173 ost->sync_opts= lrintf(sync_ipts);
1174
1175 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1176 if (nb_frames <= 0)
1177 return;
1178
1179 #if CONFIG_AVFILTER
1180 formatted_picture = in_picture;
1181 #else
1182 if (ost->video_crop) {
1183 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1184 fprintf(stderr, "error cropping picture\n");
1185 if (exit_on_error)
1186 av_exit(1);
1187 return;
1188 }
1189 formatted_picture = &picture_crop_temp;
1190 } else {
1191 formatted_picture = in_picture;
1192 }
1193 #endif
1194
1195 final_picture = formatted_picture;
1196 padding_src = formatted_picture;
1197 resampling_dst = &ost->pict_tmp;
1198
1199 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1200 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1201 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1202
1203 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));
1204 if(!ost->video_resample)
1205 av_exit(1);
1206 }
1207
1208 #if !CONFIG_AVFILTER
1209 if (ost->video_resample) {
1210 padding_src = NULL;
1211 final_picture = &ost->pict_tmp;
1212 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1213 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1214 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1215
1216 /* keep bands proportional to the frame size */
1217 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1218 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1219 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1220 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1221
1222 /* sanity check to ensure no bad band sizes sneak in */
1223 assert(topBand <= INT_MAX && topBand >= 0);
1224 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1225 assert(leftBand <= INT_MAX && leftBand >= 0);
1226 assert(rightBand <= INT_MAX && rightBand >= 0);
1227
1228 ost->topBand = topBand;
1229 ost->bottomBand = bottomBand;
1230 ost->leftBand = leftBand;
1231 ost->rightBand = rightBand;
1232
1233 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1234 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1235 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1236
1237 /* initialize a new scaler context */
1238 sws_freeContext(ost->img_resample_ctx);
1239 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1240 ost->img_resample_ctx = sws_getContext(
1241 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1242 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1243 ist->st->codec->pix_fmt,
1244 ost->st->codec->width,
1245 ost->st->codec->height,
1246 ost->st->codec->pix_fmt,
1247 sws_flags, NULL, NULL, NULL);
1248 if (ost->img_resample_ctx == NULL) {
1249 fprintf(stderr, "Cannot get resampling context\n");
1250 av_exit(1);
1251 }
1252 }
1253 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1254 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1255 }
1256 #endif
1257
1258 /* duplicates frame if needed */
1259 for(i=0;i<nb_frames;i++) {
1260 AVPacket pkt;
1261 av_init_packet(&pkt);
1262 pkt.stream_index= ost->index;
1263
1264 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1265 /* raw pictures are written as AVPicture structure to
1266 avoid any copies. We support temorarily the older
1267 method. */
1268 AVFrame* old_frame = enc->coded_frame;
1269 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1270 pkt.data= (uint8_t *)final_picture;
1271 pkt.size= sizeof(AVPicture);
1272 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1273 pkt.flags |= AV_PKT_FLAG_KEY;
1274
1275 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1276 enc->coded_frame = old_frame;
1277 } else {
1278 AVFrame big_picture;
1279
1280 big_picture= *final_picture;
1281 /* better than nothing: use input picture interlaced
1282 settings */
1283 big_picture.interlaced_frame = in_picture->interlaced_frame;
1284 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1285 if(top_field_first == -1)
1286 big_picture.top_field_first = in_picture->top_field_first;
1287 else
1288 big_picture.top_field_first = top_field_first;
1289 }
1290
1291 /* handles sameq here. This is not correct because it may
1292 not be a global option */
1293 if (same_quality) {
1294 big_picture.quality = ist->st->quality;
1295 }else
1296 big_picture.quality = ost->st->quality;
1297 if(!me_threshold)
1298 big_picture.pict_type = 0;
1299 // big_picture.pts = AV_NOPTS_VALUE;
1300 big_picture.pts= ost->sync_opts;
1301 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1302 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1303 ret = avcodec_encode_video(enc,
1304 bit_buffer, bit_buffer_size,
1305 &big_picture);
1306 if (ret < 0) {
1307 fprintf(stderr, "Video encoding failed\n");
1308 av_exit(1);
1309 }
1310
1311 if(ret>0){
1312 pkt.data= bit_buffer;
1313 pkt.size= ret;
1314 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1315 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1316 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1317 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1318 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1319
1320 if(enc->coded_frame->key_frame)
1321 pkt.flags |= AV_PKT_FLAG_KEY;
1322 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1323 *frame_size = ret;
1324 video_size += ret;
1325 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1326 // enc->frame_number-1, ret, enc->pict_type);
1327 /* if two pass, output log */
1328 if (ost->logfile && enc->stats_out) {
1329 fprintf(ost->logfile, "%s", enc->stats_out);
1330 }
1331 }
1332 }
1333 ost->sync_opts++;
1334 ost->frame_number++;
1335 }
1336 }
1337
1338 static double psnr(double d){
1339 return -10.0*log(d)/log(10.0);
1340 }
1341
1342 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1343 int frame_size)
1344 {
1345 AVCodecContext *enc;
1346 int frame_number;
1347 double ti1, bitrate, avg_bitrate;
1348
1349 /* this is executed just the first time do_video_stats is called */
1350 if (!vstats_file) {
1351 vstats_file = fopen(vstats_filename, "w");
1352 if (!vstats_file) {
1353 perror("fopen");
1354 av_exit(1);
1355 }
1356 }
1357
1358 enc = ost->st->codec;
1359 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1360 frame_number = ost->frame_number;
1361 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1362 if (enc->flags&CODEC_FLAG_PSNR)
1363 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1364
1365 fprintf(vstats_file,"f_size= %6d ", frame_size);
1366 /* compute pts value */
1367 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1368 if (ti1 < 0.01)
1369 ti1 = 0.01;
1370
1371 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1372 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1373 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1374 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1375 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1376 }
1377 }
1378
1379 static void print_report(AVFormatContext **output_files,
1380 AVOutputStream **ost_table, int nb_ostreams,
1381 int is_last_report)
1382 {
1383 char buf[1024];
1384 AVOutputStream *ost;
1385 AVFormatContext *oc;
1386 int64_t total_size;
1387 AVCodecContext *enc;
1388 int frame_number, vid, i;
1389 double bitrate, ti1, pts;
1390 static int64_t last_time = -1;
1391 static int qp_histogram[52];
1392
1393 if (!is_last_report) {
1394 int64_t cur_time;
1395 /* display the report every 0.5 seconds */
1396 cur_time = av_gettime();
1397 if (last_time == -1) {
1398 last_time = cur_time;
1399 return;
1400 }
1401 if ((cur_time - last_time) < 500000)
1402 return;
1403 last_time = cur_time;
1404 }
1405
1406
1407 oc = output_files[0];
1408
1409 total_size = url_fsize(oc->pb);
1410 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1411 total_size= url_ftell(oc->pb);
1412
1413 buf[0] = '\0';
1414 ti1 = 1e10;
1415 vid = 0;
1416 for(i=0;i<nb_ostreams;i++) {
1417 ost = ost_table[i];
1418 enc = ost->st->codec;
1419 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1420 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1421 !ost->st->stream_copy ?
1422 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1423 }
1424 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1425 float t = (av_gettime()-timer_start) / 1000000.0;
1426
1427 frame_number = ost->frame_number;
1428 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1429 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1430 !ost->st->stream_copy ?
1431 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1432 if(is_last_report)
1433 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1434 if(qp_hist){
1435 int j;
1436 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1437 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1438 qp_histogram[qp]++;
1439 for(j=0; j<32; j++)
1440 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1441 }
1442 if (enc->flags&CODEC_FLAG_PSNR){
1443 int j;
1444 double error, error_sum=0;
1445 double scale, scale_sum=0;
1446 char type[3]= {'Y','U','V'};
1447 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1448 for(j=0; j<3; j++){
1449 if(is_last_report){
1450 error= enc->error[j];
1451 scale= enc->width*enc->height*255.0*255.0*frame_number;
1452 }else{
1453 error= enc->coded_frame->error[j];
1454 scale= enc->width*enc->height*255.0*255.0;
1455 }
1456 if(j) scale/=4;
1457 error_sum += error;
1458 scale_sum += scale;
1459 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1460 }
1461 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1462 }
1463 vid = 1;
1464 }
1465 /* compute min output value */
1466 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1467 if ((pts < ti1) && (pts > 0))
1468 ti1 = pts;
1469 }
1470 if (ti1 < 0.01)
1471 ti1 = 0.01;
1472
1473 if (verbose || is_last_report) {
1474 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1475
1476 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1477 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1478 (double)total_size / 1024, ti1, bitrate);
1479
1480 if (nb_frames_dup || nb_frames_drop)
1481 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1482 nb_frames_dup, nb_frames_drop);
1483
1484 if (verbose >= 0)
1485 fprintf(stderr, "%s \r", buf);
1486
1487 fflush(stderr);
1488 }
1489
1490 if (is_last_report && verbose >= 0){
1491 int64_t raw= audio_size + video_size + extra_size;
1492 fprintf(stderr, "\n");
1493 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1494 video_size/1024.0,
1495 audio_size/1024.0,
1496 extra_size/1024.0,
1497 100.0*(total_size - raw)/raw
1498 );
1499 }
1500 }
1501
1502 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1503 static int output_packet(AVInputStream *ist, int ist_index,
1504 AVOutputStream **ost_table, int nb_ostreams,
1505 const AVPacket *pkt)
1506 {
1507 AVFormatContext *os;
1508 AVOutputStream *ost;
1509 int ret, i;
1510 int got_picture;
1511 AVFrame picture;
1512 void *buffer_to_free;
1513 static unsigned int samples_size= 0;
1514 AVSubtitle subtitle, *subtitle_to_free;
1515 #if CONFIG_AVFILTER
1516 int frame_available;
1517 #endif
1518
1519 AVPacket avpkt;
1520 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1521
1522 if(ist->next_pts == AV_NOPTS_VALUE)
1523 ist->next_pts= ist->pts;
1524
1525 if (pkt == NULL) {
1526 /* EOF handling */
1527 av_init_packet(&avpkt);
1528 avpkt.data = NULL;
1529 avpkt.size = 0;
1530 goto handle_eof;
1531 } else {
1532 avpkt = *pkt;
1533 }
1534
1535 if(pkt->dts != AV_NOPTS_VALUE)
1536 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1537
1538 //while we have more to decode or while the decoder did output something on EOF
1539 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1540 uint8_t *data_buf, *decoded_data_buf;
1541 int data_size, decoded_data_size;
1542 handle_eof:
1543 ist->pts= ist->next_pts;
1544
1545 if(avpkt.size && avpkt.size != pkt->size &&
1546 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1547 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1548 ist->showed_multi_packet_warning=1;
1549 }
1550
1551 /* decode the packet if needed */
1552 decoded_data_buf = NULL; /* fail safe */
1553 decoded_data_size= 0;
1554 data_buf = avpkt.data;
1555 data_size = avpkt.size;
1556 subtitle_to_free = NULL;
1557 if (ist->decoding_needed) {
1558 switch(ist->st->codec->codec_type) {
1559 case AVMEDIA_TYPE_AUDIO:{
1560 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1561 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1562 av_free(samples);
1563 samples= av_malloc(samples_size);
1564 }
1565 decoded_data_size= samples_size;
1566 /* XXX: could avoid copy if PCM 16 bits with same
1567 endianness as CPU */
1568 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1569 &avpkt);
1570 if (ret < 0)
1571 goto fail_decode;
1572 avpkt.data += ret;
1573 avpkt.size -= ret;
1574 data_size = ret;
1575 /* Some bug in mpeg audio decoder gives */
1576 /* decoded_data_size < 0, it seems they are overflows */
1577 if (decoded_data_size <= 0) {
1578 /* no audio frame */
1579 continue;
1580 }
1581 decoded_data_buf = (uint8_t *)samples;
1582 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1583 (ist->st->codec->sample_rate * ist->st->codec->channels);
1584 break;}
1585 case AVMEDIA_TYPE_VIDEO:
1586 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1587 /* XXX: allocate picture correctly */
1588 avcodec_get_frame_defaults(&picture);
1589
1590 ret = avcodec_decode_video2(ist->st->codec,
1591 &picture, &got_picture, &avpkt);
1592 ist->st->quality= picture.quality;
1593 if (ret < 0)
1594 goto fail_decode;
1595 if (!got_picture) {
1596 /* no picture yet */
1597 goto discard_packet;
1598 }
1599 if (ist->st->codec->time_base.num != 0) {
1600 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1601 ist->next_pts += ((int64_t)AV_TIME_BASE *
1602 ist->st->codec->time_base.num * ticks) /
1603 ist->st->codec->time_base.den;
1604 }
1605 avpkt.size = 0;
1606 break;
1607 case AVMEDIA_TYPE_SUBTITLE:
1608 ret = avcodec_decode_subtitle2(ist->st->codec,
1609 &subtitle, &got_picture, &avpkt);
1610 if (ret < 0)
1611 goto fail_decode;
1612 if (!got_picture) {
1613 goto discard_packet;
1614 }
1615 subtitle_to_free = &subtitle;
1616 avpkt.size = 0;
1617 break;
1618 default:
1619 goto fail_decode;
1620 }
1621 } else {
1622 switch(ist->st->codec->codec_type) {
1623 case AVMEDIA_TYPE_AUDIO:
1624 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1625 ist->st->codec->sample_rate;
1626 break;
1627 case AVMEDIA_TYPE_VIDEO:
1628 if (ist->st->codec->time_base.num != 0) {
1629 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1630 ist->next_pts += ((int64_t)AV_TIME_BASE *
1631 ist->st->codec->time_base.num * ticks) /
1632 ist->st->codec->time_base.den;
1633 }
1634 break;
1635 }
1636 ret = avpkt.size;
1637 avpkt.size = 0;
1638 }
1639
1640 buffer_to_free = NULL;
1641 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1642 pre_process_video_frame(ist, (AVPicture *)&picture,
1643 &buffer_to_free);
1644 }
1645
1646 #if CONFIG_AVFILTER
1647 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1648 // add it to be filtered
1649 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1650 ist->pts,
1651 ist->st->codec->sample_aspect_ratio);
1652 }
1653 #endif
1654
1655 // preprocess audio (volume)
1656 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1657 if (audio_volume != 256) {
1658 short *volp;
1659 volp = samples;
1660 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1661 int v = ((*volp) * audio_volume + 128) >> 8;
1662 if (v < -32768) v = -32768;
1663 if (v > 32767) v = 32767;
1664 *volp++ = v;
1665 }
1666 }
1667 }
1668
1669 /* frame rate emulation */
1670 if (rate_emu) {
1671 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1672 int64_t now = av_gettime() - ist->start;
1673 if (pts > now)
1674 usleep(pts - now);
1675 }
1676 #if CONFIG_AVFILTER
1677 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1678 !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1679 #endif
1680 /* if output time reached then transcode raw format,
1681 encode packets and output them */
1682 if (start_time == 0 || ist->pts >= start_time)
1683 #if CONFIG_AVFILTER
1684 while (frame_available) {
1685 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1686 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1687 #endif
1688 for(i=0;i<nb_ostreams;i++) {
1689 int frame_size;
1690
1691 ost = ost_table[i];
1692 if (ost->source_index == ist_index) {
1693 os = output_files[ost->file_index];
1694
1695 /* set the input output pts pairs */
1696 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1697
1698 if (ost->encoding_needed) {
1699 assert(ist->decoding_needed);
1700 switch(ost->st->codec->codec_type) {
1701 case AVMEDIA_TYPE_AUDIO:
1702 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1703 break;
1704 case AVMEDIA_TYPE_VIDEO:
1705 #if CONFIG_AVFILTER
1706 ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1707 #endif
1708 do_video_out(os, ost, ist, &picture, &frame_size);
1709 if (vstats_filename && frame_size)
1710 do_video_stats(os, ost, frame_size);
1711 break;
1712 case AVMEDIA_TYPE_SUBTITLE:
1713 do_subtitle_out(os, ost, ist, &subtitle,
1714 pkt->pts);
1715 break;
1716 default:
1717 abort();
1718 }
1719 } else {
1720 AVFrame avframe; //FIXME/XXX remove this
1721 AVPacket opkt;
1722 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1723
1724 av_init_packet(&opkt);
1725
1726 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1727 continue;
1728
1729 /* no reencoding needed : output the packet directly */
1730 /* force the input stream PTS */
1731
1732 avcodec_get_frame_defaults(&avframe);
1733 ost->st->codec->coded_frame= &avframe;
1734 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1735
1736 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1737 audio_size += data_size;
1738 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1739 video_size += data_size;
1740 ost->sync_opts++;
1741 }
1742
1743 opkt.stream_index= ost->index;
1744 if(pkt->pts != AV_NOPTS_VALUE)
1745 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1746 else
1747 opkt.pts= AV_NOPTS_VALUE;
1748
1749 if (pkt->dts == AV_NOPTS_VALUE)
1750 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1751 else
1752 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1753 opkt.dts -= ost_tb_start_time;
1754
1755 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1756 opkt.flags= pkt->flags;
1757
1758 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1759 if( ost->st->codec->codec_id != CODEC_ID_H264
1760 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1761 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1762 ) {
1763 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1764 opkt.destruct= av_destruct_packet;
1765 } else {
1766 opkt.data = data_buf;
1767 opkt.size = data_size;
1768 }
1769
1770 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1771 ost->st->codec->frame_number++;
1772 ost->frame_number++;
1773 av_free_packet(&opkt);
1774 }
1775 }
1776 #if CONFIG_AVFILTER
1777 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1778 ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1779 #endif
1780 }
1781
1782 #if CONFIG_AVFILTER
1783 if(ist->picref)
1784 avfilter_unref_pic(ist->picref);
1785 }
1786 #endif
1787 av_free(buffer_to_free);
1788 /* XXX: allocate the subtitles in the codec ? */
1789 if (subtitle_to_free) {
1790 if (subtitle_to_free->rects != NULL) {
1791 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1792 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1793 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1794 av_freep(&subtitle_to_free->rects[i]);
1795 }
1796 av_freep(&subtitle_to_free->rects);
1797 }
1798 subtitle_to_free->num_rects = 0;
1799 subtitle_to_free = NULL;
1800 }
1801 }
1802 discard_packet:
1803 if (pkt == NULL) {
1804 /* EOF handling */
1805
1806 for(i=0;i<nb_ostreams;i++) {
1807 ost = ost_table[i];
1808 if (ost->source_index == ist_index) {
1809 AVCodecContext *enc= ost->st->codec;
1810 os = output_files[ost->file_index];
1811
1812 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1813 continue;
1814 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1815 continue;
1816
1817 if (ost->encoding_needed) {
1818 for(;;) {
1819 AVPacket pkt;
1820 int fifo_bytes;
1821 av_init_packet(&pkt);
1822 pkt.stream_index= ost->index;
1823
1824 switch(ost->st->codec->codec_type) {
1825 case AVMEDIA_TYPE_AUDIO:
1826 fifo_bytes = av_fifo_size(ost->fifo);
1827 ret = 0;
1828 /* encode any samples remaining in fifo */
1829 if (fifo_bytes > 0) {
1830 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1831 int fs_tmp = enc->frame_size;
1832
1833 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1834 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1835 enc->frame_size = fifo_bytes / (osize * enc->channels);
1836 } else { /* pad */
1837 int frame_bytes = enc->frame_size*osize*enc->channels;
1838 if (allocated_audio_buf_size < frame_bytes)
1839 av_exit(1);
1840 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1841 }
1842
1843 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1844 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1845 ost->st->time_base.num, enc->sample_rate);
1846 enc->frame_size = fs_tmp;
1847 }
1848 if(ret <= 0) {
1849 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1850 }
1851 if (ret < 0) {
1852 fprintf(stderr, "Audio encoding failed\n");
1853 av_exit(1);
1854 }
1855 audio_size += ret;
1856 pkt.flags |= AV_PKT_FLAG_KEY;
1857 break;
1858 case AVMEDIA_TYPE_VIDEO:
1859 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1860 if (ret < 0) {
1861 fprintf(stderr, "Video encoding failed\n");
1862 av_exit(1);
1863 }
1864 video_size += ret;
1865 if(enc->coded_frame && enc->coded_frame->key_frame)
1866 pkt.flags |= AV_PKT_FLAG_KEY;
1867 if (ost->logfile && enc->stats_out) {
1868 fprintf(ost->logfile, "%s", enc->stats_out);
1869 }
1870 break;
1871 default:
1872 ret=-1;
1873 }
1874
1875 if(ret<=0)
1876 break;
1877 pkt.data= bit_buffer;
1878 pkt.size= ret;
1879 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1880 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1881 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1882 }
1883 }
1884 }
1885 }
1886 }
1887
1888 return 0;
1889 fail_decode:
1890 return -1;
1891 }
1892
1893 static void print_sdp(AVFormatContext **avc, int n)
1894 {
1895 char sdp[2048];
1896
1897 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1898 printf("SDP:\n%s\n", sdp);
1899 fflush(stdout);
1900 }
1901
1902 static int copy_chapters(int infile, int outfile)
1903 {
1904 AVFormatContext *is = input_files[infile];
1905 AVFormatContext *os = output_files[outfile];
1906 int i;
1907
1908 for (i = 0; i < is->nb_chapters; i++) {
1909 AVChapter *in_ch = is->chapters[i], *out_ch;
1910 AVMetadataTag *t = NULL;
1911 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1912 AV_TIME_BASE_Q, in_ch->time_base);
1913 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1914 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1915
1916
1917 if (in_ch->end < ts_off)
1918 continue;
1919 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1920 break;
1921
1922 out_ch = av_mallocz(sizeof(AVChapter));
1923 if (!out_ch)
1924 return AVERROR(ENOMEM);
1925
1926 out_ch->id = in_ch->id;
1927 out_ch->time_base = in_ch->time_base;
1928 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1929 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1930
1931 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1932 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1933
1934 os->nb_chapters++;
1935 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1936 if (!os->chapters)
1937 return AVERROR(ENOMEM);
1938 os->chapters[os->nb_chapters - 1] = out_ch;
1939 }
1940 return 0;
1941 }
1942
1943 /*
1944 * The following code is the main loop of the file converter
1945 */
1946 static int av_transcode(AVFormatContext **output_files,
1947 int nb_output_files,
1948 AVFormatContext **input_files,
1949 int nb_input_files,
1950 AVStreamMap *stream_maps, int nb_stream_maps)
1951 {
1952 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1953 AVFormatContext *is, *os;
1954 AVCodecContext *codec, *icodec;
1955 AVOutputStream *ost, **ost_table = NULL;
1956 AVInputStream *ist, **ist_table = NULL;
1957 AVInputFile *file_table;
1958 char error[1024];
1959 int key;
1960 int want_sdp = 1;
1961 uint8_t no_packet[MAX_FILES]={0};
1962 int no_packet_count=0;
1963
1964 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1965 if (!file_table)
1966 goto fail;
1967
1968 /* input stream init */
1969 j = 0;
1970 for(i=0;i<nb_input_files;i++) {
1971 is = input_files[i];
1972 file_table[i].ist_index = j;
1973 file_table[i].nb_streams = is->nb_streams;
1974 j += is->nb_streams;
1975 }
1976 nb_istreams = j;
1977
1978 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1979 if (!ist_table)
1980 goto fail;
1981
1982 for(i=0;i<nb_istreams;i++) {
1983 ist = av_mallocz(sizeof(AVInputStream));
1984 if (!ist)
1985 goto fail;
1986 ist_table[i] = ist;
1987 }
1988 j = 0;
1989 for(i=0;i<nb_input_files;i++) {
1990 is = input_files[i];
1991 for(k=0;k<is->nb_streams;k++) {
1992 ist = ist_table[j++];
1993 ist->st = is->streams[k];
1994 ist->file_index = i;
1995 ist->index = k;
1996 ist->discard = 1; /* the stream is discarded by default
1997 (changed later) */
1998
1999 if (rate_emu) {
2000 ist->start = av_gettime();
2001 }
2002 }
2003 }
2004
2005 /* output stream init */
2006 nb_ostreams = 0;
2007 for(i=0;i<nb_output_files;i++) {
2008 os = output_files[i];
2009 if (!os->nb_streams) {
2010 dump_format(output_files[i], i, output_files[i]->filename, 1);
2011 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2012 av_exit(1);
2013 }
2014 nb_ostreams += os->nb_streams;
2015 }
2016 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2017 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2018 av_exit(1);
2019 }
2020
2021 /* Sanity check the mapping args -- do the input files & streams exist? */
2022 for(i=0;i<nb_stream_maps;i++) {
2023 int fi = stream_maps[i].file_index;
2024 int si = stream_maps[i].stream_index;
2025
2026 if (fi < 0 || fi > nb_input_files - 1 ||
2027 si < 0 || si > file_table[fi].nb_streams - 1) {
2028 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2029 av_exit(1);
2030 }
2031 fi = stream_maps[i].sync_file_index;
2032 si = stream_maps[i].sync_stream_index;
2033 if (fi < 0 || fi > nb_input_files - 1 ||
2034 si < 0 || si > file_table[fi].nb_streams - 1) {
2035 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2036 av_exit(1);
2037 }
2038 }
2039
2040 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
2041 if (!ost_table)
2042 goto fail;
2043 for(i=0;i<nb_ostreams;i++) {
2044 ost = av_mallocz(sizeof(AVOutputStream));
2045 if (!ost)
2046 goto fail;
2047 ost_table[i] = ost;
2048 }
2049
2050 n = 0;
2051 for(k=0;k<nb_output_files;k++) {
2052 os = output_files[k];
2053 for(i=0;i<os->nb_streams;i++,n++) {
2054 int found;
2055 ost = ost_table[n];
2056 ost->file_index = k;
2057 ost->index = i;
2058 ost->st = os->streams[i];
2059 if (nb_stream_maps > 0) {
2060 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
2061 stream_maps[n].stream_index;
2062
2063 /* Sanity check that the stream types match */
2064 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
2065 int i= ost->file_index;
2066 dump_format(output_files[i], i, output_files[i]->filename, 1);
2067 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
2068 stream_maps[n].file_index, stream_maps[n].stream_index,
2069 ost->file_index, ost->index);
2070 av_exit(1);
2071 }
2072
2073 } else {
2074 int best_nb_frames=-1;
2075 /* get corresponding input stream index : we select the first one with the right type */
2076 found = 0;
2077 for(j=0;j<nb_istreams;j++) {
2078 int skip=0;
2079 ist = ist_table[j];
2080 if(opt_programid){
2081 int pi,si;
2082 AVFormatContext *f= input_files[ ist->file_index ];
2083 skip=1;
2084 for(pi=0; pi<f->nb_programs; pi++){
2085 AVProgram *p= f->programs[pi];
2086 if(p->id == opt_programid)
2087 for(si=0; si<p->nb_stream_indexes; si++){
2088 if(f->streams[ p->stream_index[si] ] == ist->st)
2089 skip=0;
2090 }
2091 }
2092 }
2093 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
2094 ist->st->codec->codec_type == ost->st->codec->codec_type) {
2095 if(best_nb_frames < ist->st->codec_info_nb_frames){
2096 best_nb_frames= ist->st->codec_info_nb_frames;
2097 ost->source_index = j;
2098 found = 1;
2099 }
2100 }
2101 }
2102
2103 if (!found) {
2104 if(! opt_programid) {
2105 /* try again and reuse existing stream */
2106 for(j=0;j<nb_istreams;j++) {
2107 ist = ist_table[j];
2108 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
2109 && ist->st->discard != AVDISCARD_ALL) {
2110 ost->source_index = j;
2111 found = 1;
2112 }
2113 }
2114 }
2115 if (!found) {
2116 int i= ost->file_index;
2117 dump_format(output_files[i], i, output_files[i]->filename, 1);
2118 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
2119 ost->file_index, ost->index);
2120 av_exit(1);
2121 }
2122 }
2123 }
2124 ist = ist_table[ost->source_index];
2125 ist->discard = 0;
2126 ost->sync_ist = (nb_stream_maps > 0) ?
2127 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
2128 stream_maps[n].sync_stream_index] : ist;
2129 }
2130 }
2131
2132 /* for each output stream, we compute the right encoding parameters */
2133 for(i=0;i<nb_ostreams;i++) {
2134 AVMetadataTag *t = NULL;
2135 ost = ost_table[i];
2136 os = output_files[ost->file_index];
2137 ist = ist_table[ost->source_index];
2138
2139 codec = ost->st->codec;
2140 icodec = ist->st->codec;
2141
2142 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
2143 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
2144 }
2145
2146 ost->st->disposition = ist->st->disposition;
2147 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
2148 codec->chroma_sample_location = icodec->chroma_sample_location;
2149
2150 if (ost->st->stream_copy) {
2151 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
2152
2153 if (extra_size > INT_MAX)
2154 goto fail;
2155
2156 /* if stream_copy is selected, no need to decode or encode */
2157 codec->codec_id = icodec->codec_id;
2158 codec->codec_type = icodec->codec_type;
2159
2160 if(!codec->codec_tag){
2161 if( !os->oformat->codec_tag
2162 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
2163 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
2164 codec->codec_tag = icodec->codec_tag;
2165 }
2166
2167 codec->bit_rate = icodec->bit_rate;
2168 codec->extradata= av_mallocz(extra_size);
2169 if (!codec->extradata)
2170 goto fail;
2171 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
2172 codec->extradata_size= icodec->extradata_size;
2173 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){
2174 codec->time_base = icodec->time_base;
2175 codec->time_base.num *= icodec->ticks_per_frame;
2176 av_reduce(&codec->time_base.num, &codec->time_base.den,
2177 codec->time_base.num, codec->time_base.den, INT_MAX);
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 int opt_pad(const char *opt, const char *arg) {
2830 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2831 return -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, streamid_map[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, streamid_map[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, streamid_map[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 /* arg format is "output-stream-index:streamid-value". */
3637 static void opt_streamid(const char *opt, const char *arg)
3638 {
3639 int idx;
3640 char *p;
3641 char idx_str[16];
3642
3643 strncpy(idx_str, arg, sizeof(idx_str));
3644 idx_str[sizeof(idx_str)-1] = '\0';
3645 p = strchr(idx_str, ':');
3646 if (!p) {
3647 fprintf(stderr,
3648 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3649 arg, opt);
3650 av_exit(1);
3651 }
3652 *p++ = '\0';
3653 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
3654 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3655 }
3656
3657 static void opt_output_file(const char *filename)
3658 {
3659 AVFormatContext *oc;
3660 int err, use_video, use_audio, use_subtitle;
3661 int input_has_video, input_has_audio, input_has_subtitle;
3662 AVFormatParameters params, *ap = &params;
3663 AVOutputFormat *file_oformat;
3664
3665 if (!strcmp(filename, "-"))
3666 filename = "pipe:";
3667
3668 oc = avformat_alloc_context();
3669 if (!oc) {
3670 print_error(filename, AVERROR(ENOMEM));
3671 av_exit(1);
3672 }
3673
3674 if (last_asked_format) {
3675 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3676 if (!file_oformat) {
3677 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3678 av_exit(1);
3679 }
3680 last_asked_format = NULL;
3681 } else {
3682 file_oformat = av_guess_format(NULL, filename, NULL);
3683 if (!file_oformat) {
3684 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3685 filename);
3686 av_exit(1);
3687 }
3688 }
3689
3690 oc->oformat = file_oformat;
3691 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3692
3693 if (!strcmp(file_oformat->name, "ffm") &&
3694 av_strstart(filename, "http:", NULL)) {
3695 /* special case for files sent to ffserver: we get the stream
3696 parameters from ffserver */
3697 int err = read_ffserver_streams(oc, filename);
3698 if (err < 0) {
3699 print_error(filename, err);
3700 av_exit(1);
3701 }
3702 } else {
3703 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3704 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3705 use_subtitle = file_oformat