Fix compilation in x86_64. I broke it with r24580.
[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 "libavcore/parseutils.h"
40 #include "libavutil/colorspace.h"
41 #include "libavutil/fifo.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/libm.h"
45 #include "libavformat/os_support.h"
46
47 #if CONFIG_AVFILTER
48 # include "libavfilter/avfilter.h"
49 # include "libavfilter/avfiltergraph.h"
50 # include "libavfilter/graphparser.h"
51 # include "libavfilter/vsrc_buffer.h"
52 #endif
53
54 #if HAVE_SYS_RESOURCE_H
55 #include <sys/types.h>
56 #include <sys/time.h>
57 #include <sys/resource.h>
58 #elif HAVE_GETPROCESSTIMES
59 #include <windows.h>
60 #endif
61 #if HAVE_GETPROCESSMEMORYINFO
62 #include <windows.h>
63 #include <psapi.h>
64 #endif
65
66 #if HAVE_SYS_SELECT_H
67 #include <sys/select.h>
68 #endif
69
70 #if HAVE_TERMIOS_H
71 #include <fcntl.h>
72 #include <sys/ioctl.h>
73 #include <sys/time.h>
74 #include <termios.h>
75 #elif HAVE_CONIO_H
76 #include <conio.h>
77 #endif
78 #include <time.h>
79
80 #include "cmdutils.h"
81
82 #undef NDEBUG
83 #include <assert.h>
84
85 const char program_name[] = "FFmpeg";
86 const int program_birth_year = 2000;
87
88 /* select an input stream for an output stream */
89 typedef struct AVStreamMap {
90 int file_index;
91 int stream_index;
92 int sync_file_index;
93 int sync_stream_index;
94 } AVStreamMap;
95
96 /** select an input file for an output file */
97 typedef struct AVMetaDataMap {
98 int out_file;
99 int in_file;
100 } AVMetaDataMap;
101
102 static const OptionDef options[];
103
104 #define MAX_FILES 100
105
106 static const char *last_asked_format = NULL;
107 static AVFormatContext *input_files[MAX_FILES];
108 static int64_t input_files_ts_offset[MAX_FILES];
109 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
110 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
111 static int nb_input_files = 0;
112 static int nb_icodecs;
113
114 static AVFormatContext *output_files[MAX_FILES];
115 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
116 static int nb_output_files = 0;
117 static int nb_ocodecs;
118
119 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
120 static int nb_stream_maps;
121
122 static AVMetaDataMap meta_data_maps[MAX_FILES];
123 static int nb_meta_data_maps;
124
125 /* indexed by output file stream index */
126 static int streamid_map[MAX_STREAMS];
127
128 static int frame_width = 0;
129 static int frame_height = 0;
130 static float frame_aspect_ratio = 0;
131 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
132 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
133 static int frame_topBand = 0;
134 static int frame_bottomBand = 0;
135 static int frame_leftBand = 0;
136 static int frame_rightBand = 0;
137 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
138 static AVRational frame_rate;
139 static float video_qscale = 0;
140 static uint16_t *intra_matrix = NULL;
141 static uint16_t *inter_matrix = NULL;
142 static const char *video_rc_override_string=NULL;
143 static int video_disable = 0;
144 static int video_discard = 0;
145 static char *video_codec_name = NULL;
146 static unsigned int video_codec_tag = 0;
147 static char *video_language = NULL;
148 static int same_quality = 0;
149 static int do_deinterlace = 0;
150 static int top_field_first = -1;
151 static int me_threshold = 0;
152 static int intra_dc_precision = 8;
153 static int loop_input = 0;
154 static int loop_output = AVFMT_NOOUTPUTLOOP;
155 static int qp_hist = 0;
156 #if CONFIG_AVFILTER
157 static char *vfilters = NULL;
158 AVFilterGraph *graph = NULL;
159 #endif
160
161 static int intra_only = 0;
162 static int audio_sample_rate = 44100;
163 static int64_t channel_layout = 0;
164 #define QSCALE_NONE -99999
165 static float audio_qscale = QSCALE_NONE;
166 static int audio_disable = 0;
167 static int audio_channels = 1;
168 static char *audio_codec_name = NULL;
169 static unsigned int audio_codec_tag = 0;
170 static char *audio_language = NULL;
171
172 static int subtitle_disable = 0;
173 static char *subtitle_codec_name = NULL;
174 static char *subtitle_language = NULL;
175 static unsigned int subtitle_codec_tag = 0;
176
177 static float mux_preload= 0.5;
178 static float mux_max_delay= 0.7;
179
180 static int64_t recording_time = INT64_MAX;
181 static int64_t start_time = 0;
182 static int64_t recording_timestamp = 0;
183 static int64_t input_ts_offset = 0;
184 static int file_overwrite = 0;
185 static int metadata_count;
186 static AVMetadataTag *metadata;
187 static int do_benchmark = 0;
188 static int do_hex_dump = 0;
189 static int do_pkt_dump = 0;
190 static int do_psnr = 0;
191 static int do_pass = 0;
192 static char *pass_logfilename_prefix = NULL;
193 static int audio_stream_copy = 0;
194 static int video_stream_copy = 0;
195 static int subtitle_stream_copy = 0;
196 static int video_sync_method= -1;
197 static int audio_sync_method= 0;
198 static float audio_drift_threshold= 0.1;
199 static int copy_ts= 0;
200 static int opt_shortest = 0;
201 static int video_global_header = 0;
202 static char *vstats_filename;
203 static FILE *vstats_file;
204 static int opt_programid = 0;
205 static int copy_initial_nonkeyframes = 0;
206
207 static int rate_emu = 0;
208
209 static int video_channel = 0;
210 static char *video_standard;
211
212 static int audio_volume = 256;
213
214 static int exit_on_error = 0;
215 static int using_stdin = 0;
216 static int verbose = 1;
217 static int thread_count= 1;
218 static int q_pressed = 0;
219 static int64_t video_size = 0;
220 static int64_t audio_size = 0;
221 static int64_t extra_size = 0;
222 static int nb_frames_dup = 0;
223 static int nb_frames_drop = 0;
224 static int input_sync;
225 static uint64_t limit_filesize = 0;
226 static int force_fps = 0;
227
228 static int pgmyuv_compatibility_hack=0;
229 static float dts_delta_threshold = 10;
230
231 static unsigned int sws_flags = SWS_BICUBIC;
232
233 static int64_t timer_start;
234
235 static uint8_t *audio_buf;
236 static uint8_t *audio_out;
237 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
238
239 static short *samples;
240
241 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
242 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
243 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
244 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
245
246 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
247
248 struct AVInputStream;
249
250 typedef struct AVOutputStream {
251 int file_index; /* file index */
252 int index; /* stream index in the output file */
253 int source_index; /* AVInputStream index */
254 AVStream *st; /* stream in the output file */
255 int encoding_needed; /* true if encoding needed for this stream */
256 int frame_number;
257 /* input pts and corresponding output pts
258 for A/V sync */
259 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
260 struct AVInputStream *sync_ist; /* input stream to sync against */
261 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
262 /* video only */
263 int video_resample;
264 AVFrame pict_tmp; /* temporary image for resampling */
265 struct SwsContext *img_resample_ctx; /* for image resampling */
266 int resample_height;
267 int resample_width;
268 int resample_pix_fmt;
269
270 /* full frame size of first frame */
271 int original_height;
272 int original_width;
273
274 /* cropping area sizes */
275 int video_crop;
276 int topBand;
277 int bottomBand;
278 int leftBand;
279 int rightBand;
280
281 /* cropping area of first frame */
282 int original_topBand;
283 int original_bottomBand;
284 int original_leftBand;
285 int original_rightBand;
286
287 /* audio only */
288 int audio_resample;
289 ReSampleContext *resample; /* for audio resampling */
290 int reformat_pair;
291 AVAudioConvert *reformat_ctx;
292 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
293 FILE *logfile;
294 } AVOutputStream;
295
296 typedef struct AVInputStream {
297 int file_index;
298 int index;
299 AVStream *st;
300 int discard; /* true if stream data should be discarded */
301 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
302 int64_t sample_index; /* current sample */
303
304 int64_t start; /* time when read started */
305 int64_t next_pts; /* synthetic pts for cases where pkt.pts
306 is not defined */
307 int64_t pts; /* current pts */
308 int is_start; /* is 1 at the start and after a discontinuity */
309 int showed_multi_packet_warning;
310 int is_past_recording_time;
311 #if CONFIG_AVFILTER
312 AVFilterContext *out_video_filter;
313 AVFilterContext *input_video_filter;
314 AVFrame *filter_frame;
315 int has_filter_frame;
316 AVFilterPicRef *picref;
317 #endif
318 } AVInputStream;
319
320 typedef struct AVInputFile {
321 int eof_reached; /* true if eof reached */
322 int ist_index; /* index of first stream in ist_table */
323 int buffer_size; /* current total buffer size */
324 int nb_streams; /* nb streams we are aware of */
325 } AVInputFile;
326
327 #if HAVE_TERMIOS_H
328
329 /* init terminal so that we can grab keys */
330 static struct termios oldtty;
331 #endif
332
333 #if CONFIG_AVFILTER
334 typedef struct {
335 int pix_fmt;
336 } FilterOutPriv;
337
338
339 static int output_init(AVFilterContext *ctx, const char *args, void *opaque)
340 {
341 FilterOutPriv *priv = ctx->priv;
342
343 if(!opaque) return -1;
344
345 priv->pix_fmt = *((int *)opaque);
346
347 return 0;
348 }
349
350 static void output_end_frame(AVFilterLink *link)
351 {
352 }
353
354 static int output_query_formats(AVFilterContext *ctx)
355 {
356 FilterOutPriv *priv = ctx->priv;
357 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
358
359 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
360 return 0;
361 }
362
363 static int get_filtered_video_pic(AVFilterContext *ctx,
364 AVFilterPicRef **picref, AVFrame *pic2,
365 uint64_t *pts)
366 {
367 AVFilterPicRef *pic;
368
369 if(avfilter_request_frame(ctx->inputs[0]))
370 return -1;
371 if(!(pic = ctx->inputs[0]->cur_pic))
372 return -1;
373 *picref = pic;
374 ctx->inputs[0]->cur_pic = NULL;
375
376 *pts = pic->pts;
377
378 memcpy(pic2->data, pic->data, sizeof(pic->data));
379 memcpy(pic2->linesize, pic->linesize, sizeof(pic->linesize));
380 pic2->interlaced_frame = pic->interlaced;
381 pic2->top_field_first = pic->top_field_first;
382
383 return 1;
384 }
385
386 static AVFilter output_filter =
387 {
388 .name = "ffmpeg_output",
389
390 .priv_size = sizeof(FilterOutPriv),
391 .init = output_init,
392
393 .query_formats = output_query_formats,
394
395 .inputs = (AVFilterPad[]) {{ .name = "default",
396 .type = AVMEDIA_TYPE_VIDEO,
397 .end_frame = output_end_frame,
398 .min_perms = AV_PERM_READ, },
399 { .name = NULL }},
400 .outputs = (AVFilterPad[]) {{ .name = NULL }},
401 };
402
403 static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
404 {
405 AVFilterContext *last_filter, *filter;
406 /** filter graph containing all filters including input & output */
407 AVCodecContext *codec = ost->st->codec;
408 AVCodecContext *icodec = ist->st->codec;
409 char args[255];
410
411 graph = av_mallocz(sizeof(AVFilterGraph));
412
413 if (!(ist->input_video_filter = avfilter_open(avfilter_get_by_name("buffer"), "src")))
414 return -1;
415 if (!(ist->out_video_filter = avfilter_open(&output_filter, "out")))
416 return -1;
417
418 snprintf(args, 255, "%d:%d:%d", ist->st->codec->width,
419 ist->st->codec->height, ist->st->codec->pix_fmt);
420 if (avfilter_init_filter(ist->input_video_filter, args, NULL))
421 return -1;
422 if (avfilter_init_filter(ist->out_video_filter, NULL, &codec->pix_fmt))
423 return -1;
424
425 /* add input and output filters to the overall graph */
426 avfilter_graph_add_filter(graph, ist->input_video_filter);
427 avfilter_graph_add_filter(graph, ist->out_video_filter);
428
429 last_filter = ist->input_video_filter;
430
431 if (ost->video_crop) {
432 snprintf(args, 255, "%d:%d:%d:%d", ost->leftBand, ost->topBand,
433 codec->width,
434 codec->height);
435 filter = avfilter_open(avfilter_get_by_name("crop"), NULL);
436 if (!filter)
437 return -1;
438 if (avfilter_init_filter(filter, args, NULL))
439 return -1;
440 if (avfilter_link(last_filter, 0, filter, 0))
441 return -1;
442 last_filter = filter;
443 avfilter_graph_add_filter(graph, last_filter);
444 }
445
446 if((codec->width !=
447 icodec->width - (frame_leftBand + frame_rightBand)) ||
448 (codec->height != icodec->height - (frame_topBand + frame_bottomBand))) {
449 snprintf(args, 255, "%d:%d:flags=0x%X",
450 codec->width,
451 codec->height,
452 (int)av_get_int(sws_opts, "sws_flags", NULL));
453 filter = avfilter_open(avfilter_get_by_name("scale"), NULL);
454 if (!filter)
455 return -1;
456 if (avfilter_init_filter(filter, args, NULL))
457 return -1;
458 if (avfilter_link(last_filter, 0, filter, 0))
459 return -1;
460 last_filter = filter;
461 avfilter_graph_add_filter(graph, last_filter);
462 }
463
464 snprintf(args, sizeof(args), "flags=0x%X", (int)av_get_int(sws_opts, "sws_flags", NULL));
465 graph->scale_sws_opts = av_strdup(args);
466
467 if (vfilters) {
468 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
469 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
470
471 outputs->name = av_strdup("in");
472 outputs->filter = last_filter;
473 outputs->pad_idx = 0;
474 outputs->next = NULL;
475
476 inputs->name = av_strdup("out");
477 inputs->filter = ist->out_video_filter;
478 inputs->pad_idx = 0;
479 inputs->next = NULL;
480
481 if (avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL) < 0)
482 return -1;
483 av_freep(&vfilters);
484 } else {
485 if (avfilter_link(last_filter, 0, ist->out_video_filter, 0) < 0)
486 return -1;
487 }
488
489 /* configure all the filter links */
490 if (avfilter_graph_check_validity(graph, NULL))
491 return -1;
492 if (avfilter_graph_config_formats(graph, NULL))
493 return -1;
494 if (avfilter_graph_config_links(graph, NULL))
495 return -1;
496
497 codec->width = ist->out_video_filter->inputs[0]->w;
498 codec->height = ist->out_video_filter->inputs[0]->h;
499
500 return 0;
501 }
502 #endif /* CONFIG_AVFILTER */
503
504 static void term_exit(void)
505 {
506 #if HAVE_TERMIOS_H
507 tcsetattr (0, TCSANOW, &oldtty);
508 #endif
509 }
510
511 static volatile int received_sigterm = 0;
512
513 static void
514 sigterm_handler(int sig)
515 {
516 received_sigterm = sig;
517 term_exit();
518 }
519
520 static void term_init(void)
521 {
522 #if HAVE_TERMIOS_H
523 struct termios tty;
524
525 tcgetattr (0, &tty);
526 oldtty = tty;
527 atexit(term_exit);
528
529 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
530 |INLCR|IGNCR|ICRNL|IXON);
531 tty.c_oflag |= OPOST;
532 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
533 tty.c_cflag &= ~(CSIZE|PARENB);
534 tty.c_cflag |= CS8;
535 tty.c_cc[VMIN] = 1;
536 tty.c_cc[VTIME] = 0;
537
538 tcsetattr (0, TCSANOW, &tty);
539 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
540 #endif
541
542 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
543 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
544 #ifdef SIGXCPU
545 signal(SIGXCPU, sigterm_handler);
546 #endif
547 }
548
549 /* read a key without blocking */
550 static int read_key(void)
551 {
552 #if HAVE_TERMIOS_H
553 int n = 1;
554 unsigned char ch;
555 struct timeval tv;
556 fd_set rfds;
557
558 FD_ZERO(&rfds);
559 FD_SET(0, &rfds);
560 tv.tv_sec = 0;
561 tv.tv_usec = 0;
562 n = select(1, &rfds, NULL, NULL, &tv);
563 if (n > 0) {
564 n = read(0, &ch, 1);
565 if (n == 1)
566 return ch;
567
568 return n;
569 }
570 #elif HAVE_CONIO_H
571 if(kbhit())
572 return(getch());
573 #endif
574 return -1;
575 }
576
577 static int decode_interrupt_cb(void)
578 {
579 return q_pressed || (q_pressed = read_key() == 'q');
580 }
581
582 static int ffmpeg_exit(int ret)
583 {
584 int i;
585
586 /* close files */
587 for(i=0;i<nb_output_files;i++) {
588 /* maybe av_close_output_file ??? */
589 AVFormatContext *s = output_files[i];
590 int j;
591 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
592 url_fclose(s->pb);
593 for(j=0;j<s->nb_streams;j++) {
594 av_metadata_free(&s->streams[j]->metadata);
595 av_free(s->streams[j]->codec);
596 av_free(s->streams[j]);
597 }
598 for(j=0;j<s->nb_programs;j++) {
599 av_metadata_free(&s->programs[j]->metadata);
600 }
601 for(j=0;j<s->nb_chapters;j++) {
602 av_metadata_free(&s->chapters[j]->metadata);
603 }
604 av_metadata_free(&s->metadata);
605 av_free(s);
606 }
607 for(i=0;i<nb_input_files;i++)
608 av_close_input_file(input_files[i]);
609
610 av_free(intra_matrix);
611 av_free(inter_matrix);
612
613 if (vstats_file)
614 fclose(vstats_file);
615 av_free(vstats_filename);
616
617 av_free(opt_names);
618
619 av_free(video_codec_name);
620 av_free(audio_codec_name);
621 av_free(subtitle_codec_name);
622
623 av_free(video_standard);
624
625 for (i=0;i<AVMEDIA_TYPE_NB;i++)
626 av_free(avcodec_opts[i]);
627 av_free(avformat_opts);
628 av_free(sws_opts);
629 av_free(audio_buf);
630 av_free(audio_out);
631 allocated_audio_buf_size= allocated_audio_out_size= 0;
632 av_free(samples);
633
634 #if CONFIG_AVFILTER
635 avfilter_uninit();
636 #endif
637
638 if (received_sigterm) {
639 fprintf(stderr,
640 "Received signal %d: terminating.\n",
641 (int) received_sigterm);
642 exit (255);
643 }
644
645 exit(ret); /* not all OS-es handle main() return value */
646 return ret;
647 }
648
649 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
650 {
651 if(codec && codec->sample_fmts){
652 const enum SampleFormat *p= codec->sample_fmts;
653 for(; *p!=-1; p++){
654 if(*p == st->codec->sample_fmt)
655 break;
656 }
657 if(*p == -1)
658 st->codec->sample_fmt = codec->sample_fmts[0];
659 }
660 }
661
662 static void choose_sample_rate(AVStream *st, AVCodec *codec)
663 {
664 if(codec && codec->supported_samplerates){
665 const int *p= codec->supported_samplerates;
666 int best=0;
667 int best_dist=INT_MAX;
668 for(; *p; p++){
669 int dist= abs(st->codec->sample_rate - *p);
670 if(dist < best_dist){
671 best_dist= dist;
672 best= *p;
673 }
674 }
675 if(best_dist){
676 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
677 }
678 st->codec->sample_rate= best;
679 }
680 }
681
682 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
683 {
684 if(codec && codec->pix_fmts){
685 const enum PixelFormat *p= codec->pix_fmts;
686 for(; *p!=-1; p++){
687 if(*p == st->codec->pix_fmt)
688 break;
689 }
690 if(*p == -1
691 && !( st->codec->codec_id==CODEC_ID_MJPEG
692 && st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL
693 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
694 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
695 st->codec->pix_fmt = codec->pix_fmts[0];
696 }
697 }
698
699 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
700 {
701 int i, err;
702 AVFormatContext *ic;
703 int nopts = 0;
704
705 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
706 if (err < 0)
707 return err;
708 /* copy stream format */
709 s->nb_streams = ic->nb_streams;
710 for(i=0;i<ic->nb_streams;i++) {
711 AVStream *st;
712 AVCodec *codec;
713
714 // FIXME: a more elegant solution is needed
715 st = av_mallocz(sizeof(AVStream));
716 memcpy(st, ic->streams[i], sizeof(AVStream));
717 st->codec = avcodec_alloc_context();
718 if (!st->codec) {
719 print_error(filename, AVERROR(ENOMEM));
720 ffmpeg_exit(1);
721 }
722 avcodec_copy_context(st->codec, ic->streams[i]->codec);
723 s->streams[i] = st;
724
725 codec = avcodec_find_encoder(st->codec->codec_id);
726 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
727 if (audio_stream_copy) {
728 st->stream_copy = 1;
729 } else
730 choose_sample_fmt(st, codec);
731 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
732 if (video_stream_copy) {
733 st->stream_copy = 1;
734 } else
735 choose_pixel_fmt(st, codec);
736 }
737
738 if(!st->codec->thread_count)
739 st->codec->thread_count = 1;
740 if(st->codec->thread_count>1)
741 avcodec_thread_init(st->codec, st->codec->thread_count);
742
743 if(st->codec->flags & CODEC_FLAG_BITEXACT)
744 nopts = 1;
745 }
746
747 if (!nopts)
748 s->timestamp = av_gettime();
749
750 av_close_input_file(ic);
751 return 0;
752 }
753
754 static double
755 get_sync_ipts(const AVOutputStream *ost)
756 {
757 const AVInputStream *ist = ost->sync_ist;
758 return (double)(ist->pts - start_time)/AV_TIME_BASE;
759 }
760
761 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
762 int ret;
763
764 while(bsfc){
765 AVPacket new_pkt= *pkt;
766 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
767 &new_pkt.data, &new_pkt.size,
768 pkt->data, pkt->size,
769 pkt->flags & AV_PKT_FLAG_KEY);
770 if(a>0){
771 av_free_packet(pkt);
772 new_pkt.destruct= av_destruct_packet;
773 } else if(a<0){
774 fprintf(stderr, "%s failed for stream %d, codec %s",
775 bsfc->filter->name, pkt->stream_index,
776 avctx->codec ? avctx->codec->name : "copy");
777 print_error("", a);
778 if (exit_on_error)
779 ffmpeg_exit(1);
780 }
781 *pkt= new_pkt;
782
783 bsfc= bsfc->next;
784 }
785
786 ret= av_interleaved_write_frame(s, pkt);
787 if(ret < 0){
788 print_error("av_interleaved_write_frame()", ret);
789 ffmpeg_exit(1);
790 }
791 }
792
793 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
794
795 static void do_audio_out(AVFormatContext *s,
796 AVOutputStream *ost,
797 AVInputStream *ist,
798 unsigned char *buf, int size)
799 {
800 uint8_t *buftmp;
801 int64_t audio_out_size, audio_buf_size;
802 int64_t allocated_for_size= size;
803
804 int size_out, frame_bytes, ret;
805 AVCodecContext *enc= ost->st->codec;
806 AVCodecContext *dec= ist->st->codec;
807 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
808 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
809 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
810
811 need_realloc:
812 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
813 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
814 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
815 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
816 audio_buf_size*= osize*enc->channels;
817
818 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
819 if(coded_bps > 8*osize)
820 audio_out_size= audio_out_size * coded_bps / (8*osize);
821 audio_out_size += FF_MIN_BUFFER_SIZE;
822
823 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
824 fprintf(stderr, "Buffer sizes too large\n");
825 ffmpeg_exit(1);
826 }
827
828 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
829 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
830 if (!audio_buf || !audio_out){
831 fprintf(stderr, "Out of memory in do_audio_out\n");
832 ffmpeg_exit(1);
833 }
834
835 if (enc->channels != dec->channels)
836 ost->audio_resample = 1;
837
838 if (ost->audio_resample && !ost->resample) {
839 if (dec->sample_fmt != SAMPLE_FMT_S16)
840 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
841 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
842 enc->sample_rate, dec->sample_rate,
843 enc->sample_fmt, dec->sample_fmt,
844 16, 10, 0, 0.8);
845 if (!ost->resample) {
846 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
847 dec->channels, dec->sample_rate,
848 enc->channels, enc->sample_rate);
849 ffmpeg_exit(1);
850 }
851 }
852
853 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
854 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
855 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
856 if (ost->reformat_ctx)
857 av_audio_convert_free(ost->reformat_ctx);
858 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
859 dec->sample_fmt, 1, NULL, 0);
860 if (!ost->reformat_ctx) {
861 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
862 avcodec_get_sample_fmt_name(dec->sample_fmt),
863 avcodec_get_sample_fmt_name(enc->sample_fmt));
864 ffmpeg_exit(1);
865 }
866 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
867 }
868
869 if(audio_sync_method){
870 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
871 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
872 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
873 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
874
875 //FIXME resample delay
876 if(fabs(delta) > 50){
877 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
878 if(byte_delta < 0){
879 byte_delta= FFMAX(byte_delta, -size);
880 size += byte_delta;
881 buf -= byte_delta;
882 if(verbose > 2)
883 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
884 if(!size)
885 return;
886 ist->is_start=0;
887 }else{
888 static uint8_t *input_tmp= NULL;
889 input_tmp= av_realloc(input_tmp, byte_delta + size);
890
891 if(byte_delta > allocated_for_size - size){
892 allocated_for_size= byte_delta + (int64_t)size;
893 goto need_realloc;
894 }
895 ist->is_start=0;
896
897 memset(input_tmp, 0, byte_delta);
898 memcpy(input_tmp + byte_delta, buf, size);
899 buf= input_tmp;
900 size += byte_delta;
901 if(verbose > 2)
902 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
903 }
904 }else if(audio_sync_method>1){
905 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
906 assert(ost->audio_resample);
907 if(verbose > 2)
908 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
909 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
910 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
911 }
912 }
913 }else
914 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
915 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
916
917 if (ost->audio_resample) {
918 buftmp = audio_buf;
919 size_out = audio_resample(ost->resample,
920 (short *)buftmp, (short *)buf,
921 size / (ist->st->codec->channels * isize));
922 size_out = size_out * enc->channels * osize;
923 } else {
924 buftmp = buf;
925 size_out = size;
926 }
927
928 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
929 const void *ibuf[6]= {buftmp};
930 void *obuf[6]= {audio_buf};
931 int istride[6]= {isize};
932 int ostride[6]= {osize};
933 int len= size_out/istride[0];
934 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
935 printf("av_audio_convert() failed\n");
936 if (exit_on_error)
937 ffmpeg_exit(1);
938 return;
939 }
940 buftmp = audio_buf;
941 size_out = len*osize;
942 }
943
944 /* now encode as many frames as possible */
945 if (enc->frame_size > 1) {
946 /* output resampled raw samples */
947 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
948 fprintf(stderr, "av_fifo_realloc2() failed\n");
949 ffmpeg_exit(1);
950 }
951 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
952
953 frame_bytes = enc->frame_size * osize * enc->channels;
954
955 while (av_fifo_size(ost->fifo) >= frame_bytes) {
956 AVPacket pkt;
957 av_init_packet(&pkt);
958
959 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
960
961 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
962
963 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
964 (short *)audio_buf);
965 if (ret < 0) {
966 fprintf(stderr, "Audio encoding failed\n");
967 ffmpeg_exit(1);
968 }
969 audio_size += ret;
970 pkt.stream_index= ost->index;
971 pkt.data= audio_out;
972 pkt.size= ret;
973 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
974 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
975 pkt.flags |= AV_PKT_FLAG_KEY;
976 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
977
978 ost->sync_opts += enc->frame_size;
979 }
980 } else {
981 AVPacket pkt;
982 av_init_packet(&pkt);
983
984 ost->sync_opts += size_out / (osize * enc->channels);
985
986 /* output a pcm frame */
987 /* determine the size of the coded buffer */
988 size_out /= osize;
989 if (coded_bps)
990 size_out = size_out*coded_bps/8;
991
992 if(size_out > audio_out_size){
993 fprintf(stderr, "Internal error, buffer size too small\n");
994 ffmpeg_exit(1);
995 }
996
997 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
998 ret = avcodec_encode_audio(enc, audio_out, size_out,
999 (short *)buftmp);
1000 if (ret < 0) {
1001 fprintf(stderr, "Audio encoding failed\n");
1002 ffmpeg_exit(1);
1003 }
1004 audio_size += ret;
1005 pkt.stream_index= ost->index;
1006 pkt.data= audio_out;
1007 pkt.size= ret;
1008 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1009 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1010 pkt.flags |= AV_PKT_FLAG_KEY;
1011 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1012 }
1013 }
1014
1015 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
1016 {
1017 AVCodecContext *dec;
1018 AVPicture *picture2;
1019 AVPicture picture_tmp;
1020 uint8_t *buf = 0;
1021
1022 dec = ist->st->codec;
1023
1024 /* deinterlace : must be done before any resize */
1025 if (do_deinterlace) {
1026 int size;
1027
1028 /* create temporary picture */
1029 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
1030 buf = av_malloc(size);
1031 if (!buf)
1032 return;
1033
1034 picture2 = &picture_tmp;
1035 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
1036
1037 if(avpicture_deinterlace(picture2, picture,
1038 dec->pix_fmt, dec->width, dec->height) < 0) {
1039 /* if error, do not deinterlace */
1040 fprintf(stderr, "Deinterlacing failed\n");
1041 av_free(buf);
1042 buf = NULL;
1043 picture2 = picture;
1044 }
1045 } else {
1046 picture2 = picture;
1047 }
1048
1049 if (picture != picture2)
1050 *picture = *picture2;
1051 *bufp = buf;
1052 }
1053
1054 /* we begin to correct av delay at this threshold */
1055 #define AV_DELAY_MAX 0.100
1056
1057 static void do_subtitle_out(AVFormatContext *s,
1058 AVOutputStream *ost,
1059 AVInputStream *ist,
1060 AVSubtitle *sub,
1061 int64_t pts)
1062 {
1063 static uint8_t *subtitle_out = NULL;
1064 int subtitle_out_max_size = 1024 * 1024;
1065 int subtitle_out_size, nb, i;
1066 AVCodecContext *enc;
1067 AVPacket pkt;
1068
1069 if (pts == AV_NOPTS_VALUE) {
1070 fprintf(stderr, "Subtitle packets must have a pts\n");
1071 if (exit_on_error)
1072 ffmpeg_exit(1);
1073 return;
1074 }
1075
1076 enc = ost->st->codec;
1077
1078 if (!subtitle_out) {
1079 subtitle_out = av_malloc(subtitle_out_max_size);
1080 }
1081
1082 /* Note: DVB subtitle need one packet to draw them and one other
1083 packet to clear them */
1084 /* XXX: signal it in the codec context ? */
1085 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
1086 nb = 2;
1087 else
1088 nb = 1;
1089
1090 for(i = 0; i < nb; i++) {
1091 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1092 // start_display_time is required to be 0
1093 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1094 sub->end_display_time -= sub->start_display_time;
1095 sub->start_display_time = 0;
1096 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1097 subtitle_out_max_size, sub);
1098 if (subtitle_out_size < 0) {
1099 fprintf(stderr, "Subtitle encoding failed\n");
1100 ffmpeg_exit(1);
1101 }
1102
1103 av_init_packet(&pkt);
1104 pkt.stream_index = ost->index;
1105 pkt.data = subtitle_out;
1106 pkt.size = subtitle_out_size;
1107 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1108 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1109 /* XXX: the pts correction is handled here. Maybe handling
1110 it in the codec would be better */
1111 if (i == 0)
1112 pkt.pts += 90 * sub->start_display_time;
1113 else
1114 pkt.pts += 90 * sub->end_display_time;
1115 }
1116 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1117 }
1118 }
1119
1120 static int bit_buffer_size= 1024*256;
1121 static uint8_t *bit_buffer= NULL;
1122
1123 static void do_video_out(AVFormatContext *s,
1124 AVOutputStream *ost,
1125 AVInputStream *ist,
1126 AVFrame *in_picture,
1127 int *frame_size)
1128 {
1129 int nb_frames, i, ret;
1130 #if !CONFIG_AVFILTER
1131 int64_t topBand, bottomBand, leftBand, rightBand;
1132 #endif
1133 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
1134 AVFrame picture_crop_temp, picture_pad_temp;
1135 AVCodecContext *enc, *dec;
1136 double sync_ipts;
1137
1138 avcodec_get_frame_defaults(&picture_crop_temp);
1139 avcodec_get_frame_defaults(&picture_pad_temp);
1140
1141 enc = ost->st->codec;
1142 dec = ist->st->codec;
1143
1144 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1145
1146 /* by default, we output a single frame */
1147 nb_frames = 1;
1148
1149 *frame_size = 0;
1150
1151 if(video_sync_method){
1152 double vdelta = sync_ipts - ost->sync_opts;
1153 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1154 if (vdelta < -1.1)
1155 nb_frames = 0;
1156 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1157 if(vdelta<=-0.6){
1158 nb_frames=0;
1159 }else if(vdelta>0.6)
1160 ost->sync_opts= lrintf(sync_ipts);
1161 }else if (vdelta > 1.1)
1162 nb_frames = lrintf(vdelta);
1163 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1164 if (nb_frames == 0){
1165 ++nb_frames_drop;
1166 if (verbose>2)
1167 fprintf(stderr, "*** drop!\n");
1168 }else if (nb_frames > 1) {
1169 nb_frames_dup += nb_frames - 1;
1170 if (verbose>2)
1171 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1172 }
1173 }else
1174 ost->sync_opts= lrintf(sync_ipts);
1175
1176 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1177 if (nb_frames <= 0)
1178 return;
1179
1180 #if CONFIG_AVFILTER
1181 formatted_picture = in_picture;
1182 #else
1183 if (ost->video_crop) {
1184 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
1185 fprintf(stderr, "error cropping picture\n");
1186 if (exit_on_error)
1187 ffmpeg_exit(1);
1188 return;
1189 }
1190 formatted_picture = &picture_crop_temp;
1191 } else {
1192 formatted_picture = in_picture;
1193 }
1194 #endif
1195
1196 final_picture = formatted_picture;
1197 padding_src = formatted_picture;
1198 resampling_dst = &ost->pict_tmp;
1199
1200 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1201 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1202 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1203
1204 fprintf(stderr,"Input Stream #%d.%d frame size changed to %dx%d, %s\n", ist->file_index, ist->index, ist->st->codec->width, ist->st->codec->height,avcodec_get_pix_fmt_name(ist->st->codec->pix_fmt));
1205 if(!ost->video_resample)
1206 ffmpeg_exit(1);
1207 }
1208
1209 #if !CONFIG_AVFILTER
1210 if (ost->video_resample) {
1211 padding_src = NULL;
1212 final_picture = &ost->pict_tmp;
1213 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1214 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1215 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1216
1217 /* keep bands proportional to the frame size */
1218 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1219 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1220 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1221 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1222
1223 /* sanity check to ensure no bad band sizes sneak in */
1224 assert(topBand <= INT_MAX && topBand >= 0);
1225 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1226 assert(leftBand <= INT_MAX && leftBand >= 0);
1227 assert(rightBand <= INT_MAX && rightBand >= 0);
1228
1229 ost->topBand = topBand;
1230 ost->bottomBand = bottomBand;
1231 ost->leftBand = leftBand;
1232 ost->rightBand = rightBand;
1233
1234 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1235 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1236 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1237
1238 /* initialize a new scaler context */
1239 sws_freeContext(ost->img_resample_ctx);
1240 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1241 ost->img_resample_ctx = sws_getContext(
1242 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1243 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1244 ist->st->codec->pix_fmt,
1245 ost->st->codec->width,
1246 ost->st->codec->height,
1247 ost->st->codec->pix_fmt,
1248 sws_flags, NULL, NULL, NULL);
1249 if (ost->img_resample_ctx == NULL) {
1250 fprintf(stderr, "Cannot get resampling context\n");
1251 ffmpeg_exit(1);
1252 }
1253 }
1254 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1255 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1256 }
1257 #endif
1258
1259 /* duplicates frame if needed */
1260 for(i=0;i<nb_frames;i++) {
1261 AVPacket pkt;
1262 av_init_packet(&pkt);
1263 pkt.stream_index= ost->index;
1264
1265 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1266 /* raw pictures are written as AVPicture structure to
1267 avoid any copies. We support temorarily the older
1268 method. */
1269 AVFrame* old_frame = enc->coded_frame;
1270 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1271 pkt.data= (uint8_t *)final_picture;
1272 pkt.size= sizeof(AVPicture);
1273 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1274 pkt.flags |= AV_PKT_FLAG_KEY;
1275
1276 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1277 enc->coded_frame = old_frame;
1278 } else {
1279 AVFrame big_picture;
1280
1281 big_picture= *final_picture;
1282 /* better than nothing: use input picture interlaced
1283 settings */
1284 big_picture.interlaced_frame = in_picture->interlaced_frame;
1285 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1286 if(top_field_first == -1)
1287 big_picture.top_field_first = in_picture->top_field_first;
1288 else
1289 big_picture.top_field_first = top_field_first;
1290 }
1291
1292 /* handles sameq here. This is not correct because it may
1293 not be a global option */
1294 big_picture.quality = same_quality ? ist->st->quality : ost->st->quality;
1295 if(!me_threshold)
1296 big_picture.pict_type = 0;
1297 // big_picture.pts = AV_NOPTS_VALUE;
1298 big_picture.pts= ost->sync_opts;
1299 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1300 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1301 ret = avcodec_encode_video(enc,
1302 bit_buffer, bit_buffer_size,
1303 &big_picture);
1304 if (ret < 0) {
1305 fprintf(stderr, "Video encoding failed\n");
1306 ffmpeg_exit(1);
1307 }
1308
1309 if(ret>0){
1310 pkt.data= bit_buffer;
1311 pkt.size= ret;
1312 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1313 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1314 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1315 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1316 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1317
1318 if(enc->coded_frame->key_frame)
1319 pkt.flags |= AV_PKT_FLAG_KEY;
1320 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1321 *frame_size = ret;
1322 video_size += ret;
1323 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1324 // enc->frame_number-1, ret, enc->pict_type);
1325 /* if two pass, output log */
1326 if (ost->logfile && enc->stats_out) {
1327 fprintf(ost->logfile, "%s", enc->stats_out);
1328 }
1329 }
1330 }
1331 ost->sync_opts++;
1332 ost->frame_number++;
1333 }
1334 }
1335
1336 static double psnr(double d){
1337 return -10.0*log(d)/log(10.0);
1338 }
1339
1340 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1341 int frame_size)
1342 {
1343 AVCodecContext *enc;
1344 int frame_number;
1345 double ti1, bitrate, avg_bitrate;
1346
1347 /* this is executed just the first time do_video_stats is called */
1348 if (!vstats_file) {
1349 vstats_file = fopen(vstats_filename, "w");
1350 if (!vstats_file) {
1351 perror("fopen");
1352 ffmpeg_exit(1);
1353 }
1354 }
1355
1356 enc = ost->st->codec;
1357 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1358 frame_number = ost->frame_number;
1359 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1360 if (enc->flags&CODEC_FLAG_PSNR)
1361 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1362
1363 fprintf(vstats_file,"f_size= %6d ", frame_size);
1364 /* compute pts value */
1365 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1366 if (ti1 < 0.01)
1367 ti1 = 0.01;
1368
1369 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1370 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1371 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1372 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1373 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1374 }
1375 }
1376
1377 static void print_report(AVFormatContext **output_files,
1378 AVOutputStream **ost_table, int nb_ostreams,
1379 int is_last_report)
1380 {
1381 char buf[1024];
1382 AVOutputStream *ost;
1383 AVFormatContext *oc;
1384 int64_t total_size;
1385 AVCodecContext *enc;
1386 int frame_number, vid, i;
1387 double bitrate, ti1, pts;
1388 static int64_t last_time = -1;
1389 static int qp_histogram[52];
1390
1391 if (!is_last_report) {
1392 int64_t cur_time;
1393 /* display the report every 0.5 seconds */
1394 cur_time = av_gettime();
1395 if (last_time == -1) {
1396 last_time = cur_time;
1397 return;
1398 }
1399 if ((cur_time - last_time) < 500000)
1400 return;
1401 last_time = cur_time;
1402 }
1403
1404
1405 oc = output_files[0];
1406
1407 total_size = url_fsize(oc->pb);
1408 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1409 total_size= url_ftell(oc->pb);
1410
1411 buf[0] = '\0';
1412 ti1 = 1e10;
1413 vid = 0;
1414 for(i=0;i<nb_ostreams;i++) {
1415 ost = ost_table[i];
1416 enc = ost->st->codec;
1417 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1418 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1419 !ost->st->stream_copy ?
1420 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1421 }
1422 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1423 float t = (av_gettime()-timer_start) / 1000000.0;
1424
1425 frame_number = ost->frame_number;
1426 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1427 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1428 !ost->st->stream_copy ?
1429 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1430 if(is_last_report)
1431 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1432 if(qp_hist){
1433 int j;
1434 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1435 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1436 qp_histogram[qp]++;
1437 for(j=0; j<32; j++)
1438 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1439 }
1440 if (enc->flags&CODEC_FLAG_PSNR){
1441 int j;
1442 double error, error_sum=0;
1443 double scale, scale_sum=0;
1444 char type[3]= {'Y','U','V'};
1445 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1446 for(j=0; j<3; j++){
1447 if(is_last_report){
1448 error= enc->error[j];
1449 scale= enc->width*enc->height*255.0*255.0*frame_number;
1450 }else{
1451 error= enc->coded_frame->error[j];
1452 scale= enc->width*enc->height*255.0*255.0;
1453 }
1454 if(j) scale/=4;
1455 error_sum += error;
1456 scale_sum += scale;
1457 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1458 }
1459 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1460 }
1461 vid = 1;
1462 }
1463 /* compute min output value */
1464 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1465 if ((pts < ti1) && (pts > 0))
1466 ti1 = pts;
1467 }
1468 if (ti1 < 0.01)
1469 ti1 = 0.01;
1470
1471 if (verbose || is_last_report) {
1472 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1473
1474 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1475 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1476 (double)total_size / 1024, ti1, bitrate);
1477
1478 if (nb_frames_dup || nb_frames_drop)
1479 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1480 nb_frames_dup, nb_frames_drop);
1481
1482 if (verbose >= 0)
1483 fprintf(stderr, "%s \r", buf);
1484
1485 fflush(stderr);
1486 }
1487
1488 if (is_last_report && verbose >= 0){
1489 int64_t raw= audio_size + video_size + extra_size;
1490 fprintf(stderr, "\n");
1491 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1492 video_size/1024.0,
1493 audio_size/1024.0,
1494 extra_size/1024.0,
1495 100.0*(total_size - raw)/raw
1496 );
1497 }
1498 }
1499
1500 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1501 static int output_packet(AVInputStream *ist, int ist_index,
1502 AVOutputStream **ost_table, int nb_ostreams,
1503 const AVPacket *pkt)
1504 {
1505 AVFormatContext *os;
1506 AVOutputStream *ost;
1507 int ret, i;
1508 int got_picture;
1509 AVFrame picture;
1510 void *buffer_to_free;
1511 static unsigned int samples_size= 0;
1512 AVSubtitle subtitle, *subtitle_to_free;
1513 #if CONFIG_AVFILTER
1514 int frame_available;
1515 #endif
1516
1517 AVPacket avpkt;
1518 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1519
1520 if(ist->next_pts == AV_NOPTS_VALUE)
1521 ist->next_pts= ist->pts;
1522
1523 if (pkt == NULL) {
1524 /* EOF handling */
1525 av_init_packet(&avpkt);
1526 avpkt.data = NULL;
1527 avpkt.size = 0;
1528 goto handle_eof;
1529 } else {
1530 avpkt = *pkt;
1531 }
1532
1533 if(pkt->dts != AV_NOPTS_VALUE)
1534 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1535
1536 //while we have more to decode or while the decoder did output something on EOF
1537 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1538 uint8_t *data_buf, *decoded_data_buf;
1539 int data_size, decoded_data_size;
1540 handle_eof:
1541 ist->pts= ist->next_pts;
1542
1543 if(avpkt.size && avpkt.size != pkt->size &&
1544 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1545 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1546 ist->showed_multi_packet_warning=1;
1547 }
1548
1549 /* decode the packet if needed */
1550 decoded_data_buf = NULL; /* fail safe */
1551 decoded_data_size= 0;
1552 data_buf = avpkt.data;
1553 data_size = avpkt.size;
1554 subtitle_to_free = NULL;
1555 if (ist->decoding_needed) {
1556 switch(ist->st->codec->codec_type) {
1557 case AVMEDIA_TYPE_AUDIO:{
1558 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1559 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1560 av_free(samples);
1561 samples= av_malloc(samples_size);
1562 }
1563 decoded_data_size= samples_size;
1564 /* XXX: could avoid copy if PCM 16 bits with same
1565 endianness as CPU */
1566 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1567 &avpkt);
1568 if (ret < 0)
1569 goto fail_decode;
1570 avpkt.data += ret;
1571 avpkt.size -= ret;
1572 data_size = ret;
1573 /* Some bug in mpeg audio decoder gives */
1574 /* decoded_data_size < 0, it seems they are overflows */
1575 if (decoded_data_size <= 0) {
1576 /* no audio frame */
1577 continue;
1578 }
1579 decoded_data_buf = (uint8_t *)samples;
1580 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1581 (ist->st->codec->sample_rate * ist->st->codec->channels);
1582 break;}
1583 case AVMEDIA_TYPE_VIDEO:
1584 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1585 /* XXX: allocate picture correctly */
1586 avcodec_get_frame_defaults(&picture);
1587
1588 ret = avcodec_decode_video2(ist->st->codec,
1589 &picture, &got_picture, &avpkt);
1590 ist->st->quality= picture.quality;
1591 if (ret < 0)
1592 goto fail_decode;
1593 if (!got_picture) {
1594 /* no picture yet */
1595 goto discard_packet;
1596 }
1597 if (ist->st->codec->time_base.num != 0) {
1598 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1599 ist->next_pts += ((int64_t)AV_TIME_BASE *
1600 ist->st->codec->time_base.num * ticks) /
1601 ist->st->codec->time_base.den;
1602 }
1603 avpkt.size = 0;
1604 break;
1605 case AVMEDIA_TYPE_SUBTITLE:
1606 ret = avcodec_decode_subtitle2(ist->st->codec,
1607 &subtitle, &got_picture, &avpkt);
1608 if (ret < 0)
1609 goto fail_decode;
1610 if (!got_picture) {
1611 goto discard_packet;
1612 }
1613 subtitle_to_free = &subtitle;
1614 avpkt.size = 0;
1615 break;
1616 default:
1617 goto fail_decode;
1618 }
1619 } else {
1620 switch(ist->st->codec->codec_type) {
1621 case AVMEDIA_TYPE_AUDIO:
1622 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1623 ist->st->codec->sample_rate;
1624 break;
1625 case AVMEDIA_TYPE_VIDEO:
1626 if (ist->st->codec->time_base.num != 0) {
1627 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1628 ist->next_pts += ((int64_t)AV_TIME_BASE *
1629 ist->st->codec->time_base.num * ticks) /
1630 ist->st->codec->time_base.den;
1631 }
1632 break;
1633 }
1634 ret = avpkt.size;
1635 avpkt.size = 0;
1636 }
1637
1638 buffer_to_free = NULL;
1639 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1640 pre_process_video_frame(ist, (AVPicture *)&picture,
1641 &buffer_to_free);
1642 }
1643
1644 #if CONFIG_AVFILTER
1645 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {
1646 // add it to be filtered
1647 av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,
1648 ist->pts,
1649 ist->st->codec->sample_aspect_ratio);
1650 }
1651 #endif
1652
1653 // preprocess audio (volume)
1654 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1655 if (audio_volume != 256) {
1656 short *volp;
1657 volp = samples;
1658 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1659 int v = ((*volp) * audio_volume + 128) >> 8;
1660 if (v < -32768) v = -32768;
1661 if (v > 32767) v = 32767;
1662 *volp++ = v;
1663 }
1664 }
1665 }
1666
1667 /* frame rate emulation */
1668 if (rate_emu) {
1669 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1670 int64_t now = av_gettime() - ist->start;
1671 if (pts > now)
1672 usleep(pts - now);
1673 }
1674 #if CONFIG_AVFILTER
1675 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1676 !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);
1677 #endif
1678 /* if output time reached then transcode raw format,
1679 encode packets and output them */
1680 if (start_time == 0 || ist->pts >= start_time)
1681 #if CONFIG_AVFILTER
1682 while (frame_available) {
1683 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)
1684 get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);
1685 #endif
1686 for(i=0;i<nb_ostreams;i++) {
1687 int frame_size;
1688
1689 ost = ost_table[i];
1690 if (ost->source_index == ist_index) {
1691 os = output_files[ost->file_index];
1692
1693 /* set the input output pts pairs */
1694 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1695
1696 if (ost->encoding_needed) {
1697 assert(ist->decoding_needed);
1698 switch(ost->st->codec->codec_type) {
1699 case AVMEDIA_TYPE_AUDIO:
1700 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1701 break;
1702 case AVMEDIA_TYPE_VIDEO:
1703 #if CONFIG_AVFILTER
1704 ost->st->codec->sample_aspect_ratio = ist->picref->pixel_aspect;
1705 #endif
1706 do_video_out(os, ost, ist, &picture, &frame_size);
1707 if (vstats_filename && frame_size)
1708 do_video_stats(os, ost, frame_size);
1709 break;
1710 case AVMEDIA_TYPE_SUBTITLE:
1711 do_subtitle_out(os, ost, ist, &subtitle,
1712 pkt->pts);
1713 break;
1714 default:
1715 abort();
1716 }
1717 } else {
1718 AVFrame avframe; //FIXME/XXX remove this
1719 AVPacket opkt;
1720 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1721
1722 av_init_packet(&opkt);
1723
1724 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1725 continue;
1726
1727 /* no reencoding needed : output the packet directly */
1728 /* force the input stream PTS */
1729
1730 avcodec_get_frame_defaults(&avframe);
1731 ost->st->codec->coded_frame= &avframe;
1732 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1733
1734 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1735 audio_size += data_size;
1736 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1737 video_size += data_size;
1738 ost->sync_opts++;
1739 }
1740
1741 opkt.stream_index= ost->index;
1742 if(pkt->pts != AV_NOPTS_VALUE)
1743 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1744 else
1745 opkt.pts= AV_NOPTS_VALUE;
1746
1747 if (pkt->dts == AV_NOPTS_VALUE)
1748 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1749 else
1750 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1751 opkt.dts -= ost_tb_start_time;
1752
1753 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1754 opkt.flags= pkt->flags;
1755
1756 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1757 if( ost->st->codec->codec_id != CODEC_ID_H264
1758 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1759 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1760 ) {
1761 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1762 opkt.destruct= av_destruct_packet;
1763 } else {
1764 opkt.data = data_buf;
1765 opkt.size = data_size;
1766 }
1767
1768 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1769 ost->st->codec->frame_number++;
1770 ost->frame_number++;
1771 av_free_packet(&opkt);
1772 }
1773 }
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 if(ist->picref)
1780 avfilter_unref_pic(ist->picref);
1781 }
1782 #endif
1783 av_free(buffer_to_free);
1784 /* XXX: allocate the subtitles in the codec ? */
1785 if (subtitle_to_free) {
1786 if (subtitle_to_free->rects != NULL) {
1787 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1788 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1789 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1790 av_freep(&subtitle_to_free->rects[i]);
1791 }
1792 av_freep(&subtitle_to_free->rects);
1793 }
1794 subtitle_to_free->num_rects = 0;
1795 subtitle_to_free = NULL;
1796 }
1797 }
1798 discard_packet:
1799 if (pkt == NULL) {
1800 /* EOF handling */
1801
1802 for(i=0;i<nb_ostreams;i++) {
1803 ost = ost_table[i];
1804 if (ost->source_index == ist_index) {
1805 AVCodecContext *enc= ost->st->codec;
1806 os = output_files[ost->file_index];
1807
1808 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1809 continue;
1810 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1811 continue;
1812
1813 if (ost->encoding_needed) {
1814 for(;;) {
1815 AVPacket pkt;
1816 int fifo_bytes;
1817 av_init_packet(&pkt);
1818 pkt.stream_index= ost->index;
1819
1820 switch(ost->st->codec->codec_type) {
1821 case AVMEDIA_TYPE_AUDIO:
1822 fifo_bytes = av_fifo_size(ost->fifo);
1823 ret = 0;
1824 /* encode any samples remaining in fifo */
1825 if (fifo_bytes > 0) {
1826 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1827 int fs_tmp = enc->frame_size;
1828
1829 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1830 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1831 enc->frame_size = fifo_bytes / (osize * enc->channels);
1832 } else { /* pad */
1833 int frame_bytes = enc->frame_size*osize*enc->channels;
1834 if (allocated_audio_buf_size < frame_bytes)
1835 ffmpeg_exit(1);
1836 memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
1837 }
1838
1839 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1840 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1841 ost->st->time_base.num, enc->sample_rate);
1842 enc->frame_size = fs_tmp;
1843 }
1844 if(ret <= 0) {
1845 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1846 }
1847 if (ret < 0) {
1848 fprintf(stderr, "Audio encoding failed\n");
1849 ffmpeg_exit(1);
1850 }
1851 audio_size += ret;
1852 pkt.flags |= AV_PKT_FLAG_KEY;
1853 break;
1854 case AVMEDIA_TYPE_VIDEO:
1855 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1856 if (ret < 0) {
1857 fprintf(stderr, "Video encoding failed\n");
1858 ffmpeg_exit(1);
1859 }
1860 video_size += ret;
1861 if(enc->coded_frame && enc->coded_frame->key_frame)
1862 pkt.flags |= AV_PKT_FLAG_KEY;
1863 if (ost->logfile && enc->stats_out) {
1864 fprintf(ost->logfile, "%s", enc->stats_out);
1865 }
1866 break;
1867 default:
1868 ret=-1;
1869 }
1870
1871 if(ret<=0)
1872 break;
1873 pkt.data= bit_buffer;
1874 pkt.size= ret;
1875 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1876 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1877 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1878 }
1879 }
1880 }
1881 }
1882 }
1883
1884 return 0;
1885 fail_decode:
1886 return -1;
1887 }
1888
1889 static void print_sdp(AVFormatContext **avc, int n)
1890 {
1891 char sdp[2048];
1892
1893 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1894 printf("SDP:\n%s\n", sdp);
1895 fflush(stdout);
1896 }
1897
1898 static int copy_chapters(int infile, int outfile)
1899 {
1900 AVFormatContext *is = input_files[infile];
1901 AVFormatContext *os = output_files[outfile];
1902 int i;
1903
1904 for (i = 0; i < is->nb_chapters; i++) {
1905 AVChapter *in_ch = is->chapters[i], *out_ch;
1906 AVMetadataTag *t = NULL;
1907 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1908 AV_TIME_BASE_Q, in_ch->time_base);
1909 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1910 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1911
1912
1913 if (in_ch->end < ts_off)
1914 continue;
1915 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1916 break;
1917
1918 out_ch = av_mallocz(sizeof(AVChapter));
1919 if (!out_ch)
1920 return AVERROR(ENOMEM);
1921
1922 out_ch->id = in_ch->id;
1923 out_ch->time_base = in_ch->time_base;
1924 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1925 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1926
1927 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1928 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1929
1930 os->nb_chapters++;
1931 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1932 if (!os->chapters)
1933 return AVERROR(ENOMEM);
1934 os->chapters[os->nb_chapters - 1] = out_ch;
1935 }
1936 return 0;
1937 }
1938
1939 /*
1940 * The following code is the main loop of the file converter
1941 */
1942 static int transcode(AVFormatContext **output_files,
1943 int nb_output_files,
1944 AVFormatContext **input_files,
1945 int nb_input_files,
1946 AVStreamMap *stream_maps, int nb_stream_maps)
1947 {
1948 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1949 AVFormatContext *is, *os;
1950 AVCodecContext *codec, *icodec;
1951 AVOutputStream *ost, **ost_table = NULL;
1952 AVInputStream *ist, **ist_table = NULL;
1953 AVInputFile *file_table;
1954 char error[1024];
1955 int key;
1956 int want_sdp = 1;
1957 uint8_t no_packet[MAX_FILES]={0};
1958 int no_packet_count=0;
1959
1960 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1961 if (!file_table)
1962 goto fail;
1963
1964 /* input stream init */
1965 j = 0;
1966 for(i=0;i<nb_input_files;i++) {
1967 is = input_files[i];
1968 file_table[i].ist_index = j;
1969 file_table[i].nb_streams = is->nb_streams;
1970 j += is->nb_streams;
1971 }
1972 nb_istreams = j;
1973
1974 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1975 if (!ist_table)
1976 goto fail;
1977
1978 for(i=0;i<nb_istreams;i++) {
1979 ist = av_mallocz(sizeof(AVInputStream));
1980 if (!ist)
1981 goto fail;
1982 ist_table[i] = ist;
1983 }
1984 j = 0;
1985 for(i=0;i<nb_input_files;i++) {
1986 is = input_files[i];
1987 for(k=0;k<is->nb_streams;k++) {
1988 ist = ist_table[j++];
1989 ist->st = is->streams[k];
1990 ist->file_index = i;
1991 ist->index = k;
1992 ist->discard = 1; /* the stream is discarded by default
1993 (changed later) */
1994
1995 if (rate_emu) {
1996 ist->start = av_gettime();
1997 }
1998 }
1999 }
2000
2001 /* output stream init */
2002 nb_ostreams = 0;
2003 for(i=0;i<nb_output_files;i++) {
2004 os = output_files[i];
2005 if (!os->nb_streams) {
2006 dump_format(output_files[i], i, output_files[i]->filename, 1);
2007 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
2008 ret = AVERROR(EINVAL);
2009 goto fail;
2010 }
2011 nb_ostreams += os->nb_streams;
2012 }
2013 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
2014 fprintf(stderr, "Number of stream maps must match number of output streams\n");
2015 ret = AVERROR(EINVAL);
2016 goto fail;
2017 }
2018
2019 /* Sanity check the mapping args -- do the input files & streams exist? */
2020 for(i=0;i<nb_stream_maps;i++) {
2021 int fi = stream_maps[i].file_index;
2022 int si = stream_maps[i].stream_index;
2023
2024 if (fi < 0 || fi > nb_input_files - 1 ||
2025 si < 0 || si > file_table[fi].nb_streams - 1) {
2026 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
2027 ret = AVERROR(EINVAL);
2028 goto fail;
2029 }
2030 fi = stream_maps[i].sync_file_index;
2031 si = stream_maps[i].sync_stream_index;
2032 if (fi < 0 || fi > nb_input_files - 1 ||
2033 si < 0 || si > file_table[fi].nb_streams - 1) {
2034 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
2035 ret = AVERROR(EINVAL);
2036 goto fail;
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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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_rate(&frame_rate, arg) < 0) {
2743 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2744 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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_size(&frame_width, &frame_height, arg) < 0) {
2824 fprintf(stderr, "Incorrect frame size\n");
2825 ffmpeg_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 ffmpeg_exit(1);
2841 }
2842 } else {
2843 show_pix_fmts();
2844 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_exit(1);
3092 }
3093 if(codec->type != type) {
3094 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
3095 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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 ffmpeg_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