60b134d8309a6d7671e993cece5065e79cc09f79
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /* needed for usleep() */
23 #define _XOPEN_SOURCE 600
24
25 #include "config.h"
26 #include <ctype.h>
27 #include <string.h>
28 #include <math.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <limits.h>
33 #include <unistd.h>
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/opt.h"
38 #include "libavcodec/audioconvert.h"
39 #include "libavcodec/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/libm.h"
44 #include "libavformat/os_support.h"
45
46 #if HAVE_SYS_RESOURCE_H
47 #include <sys/types.h>
48 #include <sys/time.h>
49 #include <sys/resource.h>
50 #elif HAVE_GETPROCESSTIMES
51 #include <windows.h>
52 #endif
53 #if HAVE_GETPROCESSMEMORYINFO
54 #include <windows.h>
55 #include <psapi.h>
56 #endif
57
58 #if HAVE_SYS_SELECT_H
59 #include <sys/select.h>
60 #endif
61
62 #if HAVE_TERMIOS_H
63 #include <fcntl.h>
64 #include <sys/ioctl.h>
65 #include <sys/time.h>
66 #include <termios.h>
67 #elif HAVE_CONIO_H
68 #include <conio.h>
69 #endif
70 #include <time.h>
71
72 #include "cmdutils.h"
73
74 #undef NDEBUG
75 #include <assert.h>
76
77 const char program_name[] = "FFmpeg";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct AVStreamMap {
82 int file_index;
83 int stream_index;
84 int sync_file_index;
85 int sync_stream_index;
86 } AVStreamMap;
87
88 /** select an input file for an output file */
89 typedef struct AVMetaDataMap {
90 int out_file;
91 int in_file;
92 } AVMetaDataMap;
93
94 static const OptionDef options[];
95
96 #define MAX_FILES 100
97
98 static const char *last_asked_format = NULL;
99 static AVFormatContext *input_files[MAX_FILES];
100 static int64_t input_files_ts_offset[MAX_FILES];
101 static double input_files_ts_scale[MAX_FILES][MAX_STREAMS];
102 static AVCodec *input_codecs[MAX_FILES*MAX_STREAMS];
103 static int nb_input_files = 0;
104 static int nb_icodecs;
105
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVCodec *output_codecs[MAX_FILES*MAX_STREAMS];
108 static int nb_output_files = 0;
109 static int nb_ocodecs;
110
111 static AVStreamMap stream_maps[MAX_FILES*MAX_STREAMS];
112 static int nb_stream_maps;
113
114 static AVMetaDataMap meta_data_maps[MAX_FILES];
115 static int nb_meta_data_maps;
116
117 static int frame_width = 0;
118 static int frame_height = 0;
119 static float frame_aspect_ratio = 0;
120 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
121 static enum SampleFormat audio_sample_fmt = SAMPLE_FMT_NONE;
122 static int frame_padtop = 0;
123 static int frame_padbottom = 0;
124 static int frame_padleft = 0;
125 static int frame_padright = 0;
126 static int padcolor[3] = {16,128,128}; /* default to black */
127 static int frame_topBand = 0;
128 static int frame_bottomBand = 0;
129 static int frame_leftBand = 0;
130 static int frame_rightBand = 0;
131 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
132 static AVRational frame_rate;
133 static float video_qscale = 0;
134 static uint16_t *intra_matrix = NULL;
135 static uint16_t *inter_matrix = NULL;
136 static const char *video_rc_override_string=NULL;
137 static int video_disable = 0;
138 static int video_discard = 0;
139 static char *video_codec_name = NULL;
140 static int video_codec_tag = 0;
141 static char *video_language = NULL;
142 static int same_quality = 0;
143 static int do_deinterlace = 0;
144 static int top_field_first = -1;
145 static int me_threshold = 0;
146 static int intra_dc_precision = 8;
147 static int loop_input = 0;
148 static int loop_output = AVFMT_NOOUTPUTLOOP;
149 static int qp_hist = 0;
150
151 static int intra_only = 0;
152 static int audio_sample_rate = 44100;
153 static int64_t channel_layout = 0;
154 #define QSCALE_NONE -99999
155 static float audio_qscale = QSCALE_NONE;
156 static int audio_disable = 0;
157 static int audio_channels = 1;
158 static char *audio_codec_name = NULL;
159 static int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_codec_name = NULL;
164 static char *subtitle_language = NULL;
165 static int subtitle_codec_tag = 0;
166
167 static float mux_preload= 0.5;
168 static float mux_max_delay= 0.7;
169
170 static int64_t recording_time = INT64_MAX;
171 static int64_t start_time = 0;
172 static int64_t rec_timestamp = 0;
173 static int64_t input_ts_offset = 0;
174 static int file_overwrite = 0;
175 static int metadata_count;
176 static AVMetadataTag *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int audio_stream_copy = 0;
184 static int video_stream_copy = 0;
185 static int subtitle_stream_copy = 0;
186 static int video_sync_method= -1;
187 static int audio_sync_method= 0;
188 static float audio_drift_threshold= 0.1;
189 static int copy_ts= 0;
190 static int opt_shortest = 0;
191 static int video_global_header = 0;
192 static char *vstats_filename;
193 static FILE *vstats_file;
194 static int opt_programid = 0;
195 static int copy_initial_nonkeyframes = 0;
196
197 static int rate_emu = 0;
198
199 static int video_channel = 0;
200 static char *video_standard;
201
202 static int audio_volume = 256;
203
204 static int exit_on_error = 0;
205 static int using_stdin = 0;
206 static int verbose = 1;
207 static int thread_count= 1;
208 static int q_pressed = 0;
209 static int64_t video_size = 0;
210 static int64_t audio_size = 0;
211 static int64_t extra_size = 0;
212 static int nb_frames_dup = 0;
213 static int nb_frames_drop = 0;
214 static int input_sync;
215 static uint64_t limit_filesize = 0;
216 static int force_fps = 0;
217
218 static int pgmyuv_compatibility_hack=0;
219 static float dts_delta_threshold = 10;
220
221 static unsigned int sws_flags = SWS_BICUBIC;
222
223 static int64_t timer_start;
224
225 static uint8_t *audio_buf;
226 static uint8_t *audio_out;
227 unsigned int allocated_audio_out_size, allocated_audio_buf_size;
228
229 static short *samples;
230
231 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
232 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
233 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
234 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
235
236 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
237
238 struct AVInputStream;
239
240 typedef struct AVOutputStream {
241 int file_index; /* file index */
242 int index; /* stream index in the output file */
243 int source_index; /* AVInputStream index */
244 AVStream *st; /* stream in the output file */
245 int encoding_needed; /* true if encoding needed for this stream */
246 int frame_number;
247 /* input pts and corresponding output pts
248 for A/V sync */
249 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
250 struct AVInputStream *sync_ist; /* input stream to sync against */
251 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
252 /* video only */
253 int video_resample;
254 AVFrame pict_tmp; /* temporary image for resampling */
255 struct SwsContext *img_resample_ctx; /* for image resampling */
256 int resample_height;
257 int resample_width;
258 int resample_pix_fmt;
259
260 /* full frame size of first frame */
261 int original_height;
262 int original_width;
263
264 /* cropping area sizes */
265 int video_crop;
266 int topBand;
267 int bottomBand;
268 int leftBand;
269 int rightBand;
270
271 /* cropping area of first frame */
272 int original_topBand;
273 int original_bottomBand;
274 int original_leftBand;
275 int original_rightBand;
276
277 /* padding area sizes */
278 int video_pad;
279 int padtop;
280 int padbottom;
281 int padleft;
282 int padright;
283
284 /* audio only */
285 int audio_resample;
286 ReSampleContext *resample; /* for audio resampling */
287 int reformat_pair;
288 AVAudioConvert *reformat_ctx;
289 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
290 FILE *logfile;
291 } AVOutputStream;
292
293 typedef struct AVInputStream {
294 int file_index;
295 int index;
296 AVStream *st;
297 int discard; /* true if stream data should be discarded */
298 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
299 int64_t sample_index; /* current sample */
300
301 int64_t start; /* time when read started */
302 int64_t next_pts; /* synthetic pts for cases where pkt.pts
303 is not defined */
304 int64_t pts; /* current pts */
305 int is_start; /* is 1 at the start and after a discontinuity */
306 int showed_multi_packet_warning;
307 int is_past_recording_time;
308 } AVInputStream;
309
310 typedef struct AVInputFile {
311 int eof_reached; /* true if eof reached */
312 int ist_index; /* index of first stream in ist_table */
313 int buffer_size; /* current total buffer size */
314 int nb_streams; /* nb streams we are aware of */
315 } AVInputFile;
316
317 #if HAVE_TERMIOS_H
318
319 /* init terminal so that we can grab keys */
320 static struct termios oldtty;
321 #endif
322
323 static void term_exit(void)
324 {
325 #if HAVE_TERMIOS_H
326 tcsetattr (0, TCSANOW, &oldtty);
327 #endif
328 }
329
330 static volatile int received_sigterm = 0;
331
332 static void
333 sigterm_handler(int sig)
334 {
335 received_sigterm = sig;
336 term_exit();
337 }
338
339 static void term_init(void)
340 {
341 #if HAVE_TERMIOS_H
342 struct termios tty;
343
344 tcgetattr (0, &tty);
345 oldtty = tty;
346 atexit(term_exit);
347
348 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
349 |INLCR|IGNCR|ICRNL|IXON);
350 tty.c_oflag |= OPOST;
351 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
352 tty.c_cflag &= ~(CSIZE|PARENB);
353 tty.c_cflag |= CS8;
354 tty.c_cc[VMIN] = 1;
355 tty.c_cc[VTIME] = 0;
356
357 tcsetattr (0, TCSANOW, &tty);
358 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
359 #endif
360
361 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
362 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
363 #ifdef SIGXCPU
364 signal(SIGXCPU, sigterm_handler);
365 #endif
366
367 #if CONFIG_BEOS_NETSERVER
368 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
369 #endif
370 }
371
372 /* read a key without blocking */
373 static int read_key(void)
374 {
375 #if HAVE_TERMIOS_H
376 int n = 1;
377 unsigned char ch;
378 #if !CONFIG_BEOS_NETSERVER
379 struct timeval tv;
380 fd_set rfds;
381
382 FD_ZERO(&rfds);
383 FD_SET(0, &rfds);
384 tv.tv_sec = 0;
385 tv.tv_usec = 0;
386 n = select(1, &rfds, NULL, NULL, &tv);
387 #endif
388 if (n > 0) {
389 n = read(0, &ch, 1);
390 if (n == 1)
391 return ch;
392
393 return n;
394 }
395 #elif HAVE_CONIO_H
396 if(kbhit())
397 return(getch());
398 #endif
399 return -1;
400 }
401
402 static int decode_interrupt_cb(void)
403 {
404 return q_pressed || (q_pressed = read_key() == 'q');
405 }
406
407 static int av_exit(int ret)
408 {
409 int i;
410
411 /* close files */
412 for(i=0;i<nb_output_files;i++) {
413 /* maybe av_close_output_file ??? */
414 AVFormatContext *s = output_files[i];
415 int j;
416 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
417 url_fclose(s->pb);
418 for(j=0;j<s->nb_streams;j++) {
419 av_metadata_free(&s->streams[j]->metadata);
420 av_free(s->streams[j]->codec);
421 av_free(s->streams[j]);
422 }
423 for(j=0;j<s->nb_programs;j++) {
424 av_metadata_free(&s->programs[j]->metadata);
425 }
426 for(j=0;j<s->nb_chapters;j++) {
427 av_metadata_free(&s->chapters[j]->metadata);
428 }
429 av_metadata_free(&s->metadata);
430 av_free(s);
431 }
432 for(i=0;i<nb_input_files;i++)
433 av_close_input_file(input_files[i]);
434
435 av_free(intra_matrix);
436 av_free(inter_matrix);
437
438 if (vstats_file)
439 fclose(vstats_file);
440 av_free(vstats_filename);
441
442 av_free(opt_names);
443
444 av_free(video_codec_name);
445 av_free(audio_codec_name);
446 av_free(subtitle_codec_name);
447
448 av_free(video_standard);
449
450 #if CONFIG_POWERPC_PERF
451 void powerpc_display_perf_report(void);
452 powerpc_display_perf_report();
453 #endif /* CONFIG_POWERPC_PERF */
454
455 for (i=0;i<AVMEDIA_TYPE_NB;i++)
456 av_free(avcodec_opts[i]);
457 av_free(avformat_opts);
458 av_free(sws_opts);
459 av_free(audio_buf);
460 av_free(audio_out);
461 allocated_audio_buf_size= allocated_audio_out_size= 0;
462 av_free(samples);
463
464 if (received_sigterm) {
465 fprintf(stderr,
466 "Received signal %d: terminating.\n",
467 (int) received_sigterm);
468 exit (255);
469 }
470
471 exit(ret); /* not all OS-es handle main() return value */
472 return ret;
473 }
474
475 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
476 {
477 if(codec && codec->sample_fmts){
478 const enum SampleFormat *p= codec->sample_fmts;
479 for(; *p!=-1; p++){
480 if(*p == st->codec->sample_fmt)
481 break;
482 }
483 if(*p == -1)
484 st->codec->sample_fmt = codec->sample_fmts[0];
485 }
486 }
487
488 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
489 {
490 if(codec && codec->pix_fmts){
491 const enum PixelFormat *p= codec->pix_fmts;
492 for(; *p!=-1; p++){
493 if(*p == st->codec->pix_fmt)
494 break;
495 }
496 if(*p == -1
497 && !( st->codec->codec_id==CODEC_ID_MJPEG
498 && st->codec->strict_std_compliance <= FF_COMPLIANCE_INOFFICIAL
499 && ( st->codec->pix_fmt == PIX_FMT_YUV420P
500 || st->codec->pix_fmt == PIX_FMT_YUV422P)))
501 st->codec->pix_fmt = codec->pix_fmts[0];
502 }
503 }
504
505 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
506 {
507 int i, err;
508 AVFormatContext *ic;
509 int nopts = 0;
510
511 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
512 if (err < 0)
513 return err;
514 /* copy stream format */
515 s->nb_streams = ic->nb_streams;
516 for(i=0;i<ic->nb_streams;i++) {
517 AVStream *st;
518 AVCodec *codec;
519
520 // FIXME: a more elegant solution is needed
521 st = av_mallocz(sizeof(AVStream));
522 memcpy(st, ic->streams[i], sizeof(AVStream));
523 st->codec = avcodec_alloc_context();
524 if (!st->codec) {
525 print_error(filename, AVERROR(ENOMEM));
526 av_exit(1);
527 }
528 avcodec_copy_context(st->codec, ic->streams[i]->codec);
529 s->streams[i] = st;
530
531 codec = avcodec_find_encoder(st->codec->codec_id);
532 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
533 if (audio_stream_copy) {
534 st->stream_copy = 1;
535 } else
536 choose_sample_fmt(st, codec);
537 } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
538 if (video_stream_copy) {
539 st->stream_copy = 1;
540 } else
541 choose_pixel_fmt(st, codec);
542 }
543
544 if(!st->codec->thread_count)
545 st->codec->thread_count = 1;
546 if(st->codec->thread_count>1)
547 avcodec_thread_init(st->codec, st->codec->thread_count);
548
549 if(st->codec->flags & CODEC_FLAG_BITEXACT)
550 nopts = 1;
551 }
552
553 if (!nopts)
554 s->timestamp = av_gettime();
555
556 av_close_input_file(ic);
557 return 0;
558 }
559
560 static double
561 get_sync_ipts(const AVOutputStream *ost)
562 {
563 const AVInputStream *ist = ost->sync_ist;
564 return (double)(ist->pts - start_time)/AV_TIME_BASE;
565 }
566
567 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
568 int ret;
569
570 while(bsfc){
571 AVPacket new_pkt= *pkt;
572 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
573 &new_pkt.data, &new_pkt.size,
574 pkt->data, pkt->size,
575 pkt->flags & AV_PKT_FLAG_KEY);
576 if(a>0){
577 av_free_packet(pkt);
578 new_pkt.destruct= av_destruct_packet;
579 } else if(a<0){
580 fprintf(stderr, "%s failed for stream %d, codec %s",
581 bsfc->filter->name, pkt->stream_index,
582 avctx->codec ? avctx->codec->name : "copy");
583 print_error("", a);
584 if (exit_on_error)
585 av_exit(1);
586 }
587 *pkt= new_pkt;
588
589 bsfc= bsfc->next;
590 }
591
592 ret= av_interleaved_write_frame(s, pkt);
593 if(ret < 0){
594 print_error("av_interleaved_write_frame()", ret);
595 av_exit(1);
596 }
597 }
598
599 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
600
601 static void do_audio_out(AVFormatContext *s,
602 AVOutputStream *ost,
603 AVInputStream *ist,
604 unsigned char *buf, int size)
605 {
606 uint8_t *buftmp;
607 int64_t audio_out_size, audio_buf_size;
608 int64_t allocated_for_size= size;
609
610 int size_out, frame_bytes, ret;
611 AVCodecContext *enc= ost->st->codec;
612 AVCodecContext *dec= ist->st->codec;
613 int osize= av_get_bits_per_sample_format(enc->sample_fmt)/8;
614 int isize= av_get_bits_per_sample_format(dec->sample_fmt)/8;
615 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
616
617 need_realloc:
618 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
619 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
620 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
621 audio_buf_size*= osize*enc->channels;
622
623 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
624 if(coded_bps > 8*osize)
625 audio_out_size= audio_out_size * coded_bps / (8*osize);
626 audio_out_size += FF_MIN_BUFFER_SIZE;
627
628 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
629 fprintf(stderr, "Buffer sizes too large\n");
630 av_exit(1);
631 }
632
633 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
634 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
635 if (!audio_buf || !audio_out){
636 fprintf(stderr, "Out of memory in do_audio_out\n");
637 av_exit(1);
638 }
639
640 if (enc->channels != dec->channels)
641 ost->audio_resample = 1;
642
643 if (ost->audio_resample && !ost->resample) {
644 if (dec->sample_fmt != SAMPLE_FMT_S16)
645 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
646 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
647 enc->sample_rate, dec->sample_rate,
648 enc->sample_fmt, dec->sample_fmt,
649 16, 10, 0, 0.8);
650 if (!ost->resample) {
651 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
652 dec->channels, dec->sample_rate,
653 enc->channels, enc->sample_rate);
654 av_exit(1);
655 }
656 }
657
658 #define MAKE_SFMT_PAIR(a,b) ((a)+SAMPLE_FMT_NB*(b))
659 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
660 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
661 if (ost->reformat_ctx)
662 av_audio_convert_free(ost->reformat_ctx);
663 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
664 dec->sample_fmt, 1, NULL, 0);
665 if (!ost->reformat_ctx) {
666 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
667 avcodec_get_sample_fmt_name(dec->sample_fmt),
668 avcodec_get_sample_fmt_name(enc->sample_fmt));
669 av_exit(1);
670 }
671 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
672 }
673
674 if(audio_sync_method){
675 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
676 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2);
677 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
678 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
679
680 //FIXME resample delay
681 if(fabs(delta) > 50){
682 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
683 if(byte_delta < 0){
684 byte_delta= FFMAX(byte_delta, -size);
685 size += byte_delta;
686 buf -= byte_delta;
687 if(verbose > 2)
688 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
689 if(!size)
690 return;
691 ist->is_start=0;
692 }else{
693 static uint8_t *input_tmp= NULL;
694 input_tmp= av_realloc(input_tmp, byte_delta + size);
695
696 if(byte_delta > allocated_for_size - size){
697 allocated_for_size= byte_delta + (int64_t)size;
698 goto need_realloc;
699 }
700 ist->is_start=0;
701
702 memset(input_tmp, 0, byte_delta);
703 memcpy(input_tmp + byte_delta, buf, size);
704 buf= input_tmp;
705 size += byte_delta;
706 if(verbose > 2)
707 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
708 }
709 }else if(audio_sync_method>1){
710 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
711 assert(ost->audio_resample);
712 if(verbose > 2)
713 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
714 // 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));
715 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
716 }
717 }
718 }else
719 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
720 - av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
721
722 if (ost->audio_resample) {
723 buftmp = audio_buf;
724 size_out = audio_resample(ost->resample,
725 (short *)buftmp, (short *)buf,
726 size / (ist->st->codec->channels * isize));
727 size_out = size_out * enc->channels * osize;
728 } else {
729 buftmp = buf;
730 size_out = size;
731 }
732
733 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
734 const void *ibuf[6]= {buftmp};
735 void *obuf[6]= {audio_buf};
736 int istride[6]= {isize};
737 int ostride[6]= {osize};
738 int len= size_out/istride[0];
739 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
740 printf("av_audio_convert() failed\n");
741 if (exit_on_error)
742 av_exit(1);
743 return;
744 }
745 buftmp = audio_buf;
746 size_out = len*osize;
747 }
748
749 /* now encode as many frames as possible */
750 if (enc->frame_size > 1) {
751 /* output resampled raw samples */
752 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
753 fprintf(stderr, "av_fifo_realloc2() failed\n");
754 av_exit(1);
755 }
756 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
757
758 frame_bytes = enc->frame_size * osize * enc->channels;
759
760 while (av_fifo_size(ost->fifo) >= frame_bytes) {
761 AVPacket pkt;
762 av_init_packet(&pkt);
763
764 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
765
766 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
767
768 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
769 (short *)audio_buf);
770 if (ret < 0) {
771 fprintf(stderr, "Audio encoding failed\n");
772 av_exit(1);
773 }
774 audio_size += ret;
775 pkt.stream_index= ost->index;
776 pkt.data= audio_out;
777 pkt.size= ret;
778 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
779 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
780 pkt.flags |= AV_PKT_FLAG_KEY;
781 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
782
783 ost->sync_opts += enc->frame_size;
784 }
785 } else {
786 AVPacket pkt;
787 av_init_packet(&pkt);
788
789 ost->sync_opts += size_out / (osize * enc->channels);
790
791 /* output a pcm frame */
792 /* determine the size of the coded buffer */
793 size_out /= osize;
794 if (coded_bps)
795 size_out = size_out*coded_bps/8;
796
797 if(size_out > audio_out_size){
798 fprintf(stderr, "Internal error, buffer size too small\n");
799 av_exit(1);
800 }
801
802 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
803 ret = avcodec_encode_audio(enc, audio_out, size_out,
804 (short *)buftmp);
805 if (ret < 0) {
806 fprintf(stderr, "Audio encoding failed\n");
807 av_exit(1);
808 }
809 audio_size += ret;
810 pkt.stream_index= ost->index;
811 pkt.data= audio_out;
812 pkt.size= ret;
813 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
814 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
815 pkt.flags |= AV_PKT_FLAG_KEY;
816 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
817 }
818 }
819
820 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
821 {
822 AVCodecContext *dec;
823 AVPicture *picture2;
824 AVPicture picture_tmp;
825 uint8_t *buf = 0;
826
827 dec = ist->st->codec;
828
829 /* deinterlace : must be done before any resize */
830 if (do_deinterlace) {
831 int size;
832
833 /* create temporary picture */
834 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
835 buf = av_malloc(size);
836 if (!buf)
837 return;
838
839 picture2 = &picture_tmp;
840 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
841
842 if(avpicture_deinterlace(picture2, picture,
843 dec->pix_fmt, dec->width, dec->height) < 0) {
844 /* if error, do not deinterlace */
845 fprintf(stderr, "Deinterlacing failed\n");
846 av_free(buf);
847 buf = NULL;
848 picture2 = picture;
849 }
850 } else {
851 picture2 = picture;
852 }
853
854 if (picture != picture2)
855 *picture = *picture2;
856 *bufp = buf;
857 }
858
859 /* we begin to correct av delay at this threshold */
860 #define AV_DELAY_MAX 0.100
861
862 static void do_subtitle_out(AVFormatContext *s,
863 AVOutputStream *ost,
864 AVInputStream *ist,
865 AVSubtitle *sub,
866 int64_t pts)
867 {
868 static uint8_t *subtitle_out = NULL;
869 int subtitle_out_max_size = 1024 * 1024;
870 int subtitle_out_size, nb, i;
871 AVCodecContext *enc;
872 AVPacket pkt;
873
874 if (pts == AV_NOPTS_VALUE) {
875 fprintf(stderr, "Subtitle packets must have a pts\n");
876 if (exit_on_error)
877 av_exit(1);
878 return;
879 }
880
881 enc = ost->st->codec;
882
883 if (!subtitle_out) {
884 subtitle_out = av_malloc(subtitle_out_max_size);
885 }
886
887 /* Note: DVB subtitle need one packet to draw them and one other
888 packet to clear them */
889 /* XXX: signal it in the codec context ? */
890 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
891 nb = 2;
892 else
893 nb = 1;
894
895 for(i = 0; i < nb; i++) {
896 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
897 // start_display_time is required to be 0
898 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
899 sub->end_display_time -= sub->start_display_time;
900 sub->start_display_time = 0;
901 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
902 subtitle_out_max_size, sub);
903 if (subtitle_out_size < 0) {
904 fprintf(stderr, "Subtitle encoding failed\n");
905 av_exit(1);
906 }
907
908 av_init_packet(&pkt);
909 pkt.stream_index = ost->index;
910 pkt.data = subtitle_out;
911 pkt.size = subtitle_out_size;
912 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
913 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
914 /* XXX: the pts correction is handled here. Maybe handling
915 it in the codec would be better */
916 if (i == 0)
917 pkt.pts += 90 * sub->start_display_time;
918 else
919 pkt.pts += 90 * sub->end_display_time;
920 }
921 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
922 }
923 }
924
925 static int bit_buffer_size= 1024*256;
926 static uint8_t *bit_buffer= NULL;
927
928 static void do_video_out(AVFormatContext *s,
929 AVOutputStream *ost,
930 AVInputStream *ist,
931 AVFrame *in_picture,
932 int *frame_size)
933 {
934 int nb_frames, i, ret;
935 int64_t topBand, bottomBand, leftBand, rightBand;
936 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
937 AVFrame picture_crop_temp, picture_pad_temp;
938 AVCodecContext *enc, *dec;
939 double sync_ipts;
940
941 avcodec_get_frame_defaults(&picture_crop_temp);
942 avcodec_get_frame_defaults(&picture_pad_temp);
943
944 enc = ost->st->codec;
945 dec = ist->st->codec;
946
947 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
948
949 /* by default, we output a single frame */
950 nb_frames = 1;
951
952 *frame_size = 0;
953
954 if(video_sync_method){
955 double vdelta = sync_ipts - ost->sync_opts;
956 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
957 if (vdelta < -1.1)
958 nb_frames = 0;
959 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
960 if(vdelta<=-0.6){
961 nb_frames=0;
962 }else if(vdelta>0.6)
963 ost->sync_opts= lrintf(sync_ipts);
964 }else if (vdelta > 1.1)
965 nb_frames = lrintf(vdelta);
966 //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);
967 if (nb_frames == 0){
968 ++nb_frames_drop;
969 if (verbose>2)
970 fprintf(stderr, "*** drop!\n");
971 }else if (nb_frames > 1) {
972 nb_frames_dup += nb_frames - 1;
973 if (verbose>2)
974 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
975 }
976 }else
977 ost->sync_opts= lrintf(sync_ipts);
978
979 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
980 if (nb_frames <= 0)
981 return;
982
983 if (ost->video_crop) {
984 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
985 fprintf(stderr, "error cropping picture\n");
986 if (exit_on_error)
987 av_exit(1);
988 return;
989 }
990 formatted_picture = &picture_crop_temp;
991 } else {
992 formatted_picture = in_picture;
993 }
994
995 final_picture = formatted_picture;
996 padding_src = formatted_picture;
997 resampling_dst = &ost->pict_tmp;
998 if (ost->video_pad) {
999 final_picture = &ost->pict_tmp;
1000 if (ost->video_resample) {
1001 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
1002 fprintf(stderr, "error padding picture\n");
1003 if (exit_on_error)
1004 av_exit(1);
1005 return;
1006 }
1007 resampling_dst = &picture_pad_temp;
1008 }
1009 }
1010
1011 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1012 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1013 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1014
1015 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));
1016 if(!ost->video_resample)
1017 av_exit(1);
1018 }
1019
1020 if (ost->video_resample) {
1021 padding_src = NULL;
1022 final_picture = &ost->pict_tmp;
1023 if( (ost->resample_height != (ist->st->codec->height - (ost->topBand + ost->bottomBand)))
1024 || (ost->resample_width != (ist->st->codec->width - (ost->leftBand + ost->rightBand)))
1025 || (ost->resample_pix_fmt!= ist->st->codec->pix_fmt) ) {
1026
1027 /* keep bands proportional to the frame size */
1028 topBand = ((int64_t)ist->st->codec->height * ost->original_topBand / ost->original_height) & ~1;
1029 bottomBand = ((int64_t)ist->st->codec->height * ost->original_bottomBand / ost->original_height) & ~1;
1030 leftBand = ((int64_t)ist->st->codec->width * ost->original_leftBand / ost->original_width) & ~1;
1031 rightBand = ((int64_t)ist->st->codec->width * ost->original_rightBand / ost->original_width) & ~1;
1032
1033 /* sanity check to ensure no bad band sizes sneak in */
1034 assert(topBand <= INT_MAX && topBand >= 0);
1035 assert(bottomBand <= INT_MAX && bottomBand >= 0);
1036 assert(leftBand <= INT_MAX && leftBand >= 0);
1037 assert(rightBand <= INT_MAX && rightBand >= 0);
1038
1039 ost->topBand = topBand;
1040 ost->bottomBand = bottomBand;
1041 ost->leftBand = leftBand;
1042 ost->rightBand = rightBand;
1043
1044 ost->resample_height = ist->st->codec->height - (ost->topBand + ost->bottomBand);
1045 ost->resample_width = ist->st->codec->width - (ost->leftBand + ost->rightBand);
1046 ost->resample_pix_fmt= ist->st->codec->pix_fmt;
1047
1048 /* initialize a new scaler context */
1049 sws_freeContext(ost->img_resample_ctx);
1050 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1051 ost->img_resample_ctx = sws_getContext(
1052 ist->st->codec->width - (ost->leftBand + ost->rightBand),
1053 ist->st->codec->height - (ost->topBand + ost->bottomBand),
1054 ist->st->codec->pix_fmt,
1055 ost->st->codec->width - (ost->padleft + ost->padright),
1056 ost->st->codec->height - (ost->padtop + ost->padbottom),
1057 ost->st->codec->pix_fmt,
1058 sws_flags, NULL, NULL, NULL);
1059 if (ost->img_resample_ctx == NULL) {
1060 fprintf(stderr, "Cannot get resampling context\n");
1061 av_exit(1);
1062 }
1063 }
1064 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1065 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
1066 }
1067
1068 if (ost->video_pad) {
1069 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
1070 enc->height, enc->width, enc->pix_fmt,
1071 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
1072 }
1073
1074 /* duplicates frame if needed */
1075 for(i=0;i<nb_frames;i++) {
1076 AVPacket pkt;
1077 av_init_packet(&pkt);
1078 pkt.stream_index= ost->index;
1079
1080 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1081 /* raw pictures are written as AVPicture structure to
1082 avoid any copies. We support temorarily the older
1083 method. */
1084 AVFrame* old_frame = enc->coded_frame;
1085 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1086 pkt.data= (uint8_t *)final_picture;
1087 pkt.size= sizeof(AVPicture);
1088 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1089 pkt.flags |= AV_PKT_FLAG_KEY;
1090
1091 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1092 enc->coded_frame = old_frame;
1093 } else {
1094 AVFrame big_picture;
1095
1096 big_picture= *final_picture;
1097 /* better than nothing: use input picture interlaced
1098 settings */
1099 big_picture.interlaced_frame = in_picture->interlaced_frame;
1100 if(avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
1101 if(top_field_first == -1)
1102 big_picture.top_field_first = in_picture->top_field_first;
1103 else
1104 big_picture.top_field_first = top_field_first;
1105 }
1106
1107 /* handles sameq here. This is not correct because it may
1108 not be a global option */
1109 if (same_quality) {
1110 big_picture.quality = ist->st->quality;
1111 }else
1112 big_picture.quality = ost->st->quality;
1113 if(!me_threshold)
1114 big_picture.pict_type = 0;
1115 // big_picture.pts = AV_NOPTS_VALUE;
1116 big_picture.pts= ost->sync_opts;
1117 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1118 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1119 ret = avcodec_encode_video(enc,
1120 bit_buffer, bit_buffer_size,
1121 &big_picture);
1122 if (ret < 0) {
1123 fprintf(stderr, "Video encoding failed\n");
1124 av_exit(1);
1125 }
1126
1127 if(ret>0){
1128 pkt.data= bit_buffer;
1129 pkt.size= ret;
1130 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1131 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1132 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1133 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1134 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1135
1136 if(enc->coded_frame->key_frame)
1137 pkt.flags |= AV_PKT_FLAG_KEY;
1138 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1139 *frame_size = ret;
1140 video_size += ret;
1141 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1142 // enc->frame_number-1, ret, enc->pict_type);
1143 /* if two pass, output log */
1144 if (ost->logfile && enc->stats_out) {
1145 fprintf(ost->logfile, "%s", enc->stats_out);
1146 }
1147 }
1148 }
1149 ost->sync_opts++;
1150 ost->frame_number++;
1151 }
1152 }
1153
1154 static double psnr(double d){
1155 return -10.0*log(d)/log(10.0);
1156 }
1157
1158 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1159 int frame_size)
1160 {
1161 AVCodecContext *enc;
1162 int frame_number;
1163 double ti1, bitrate, avg_bitrate;
1164
1165 /* this is executed just the first time do_video_stats is called */
1166 if (!vstats_file) {
1167 vstats_file = fopen(vstats_filename, "w");
1168 if (!vstats_file) {
1169 perror("fopen");
1170 av_exit(1);
1171 }
1172 }
1173
1174 enc = ost->st->codec;
1175 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1176 frame_number = ost->frame_number;
1177 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1178 if (enc->flags&CODEC_FLAG_PSNR)
1179 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1180
1181 fprintf(vstats_file,"f_size= %6d ", frame_size);
1182 /* compute pts value */
1183 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1184 if (ti1 < 0.01)
1185 ti1 = 0.01;
1186
1187 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1188 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1189 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1190 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1191 fprintf(vstats_file,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1192 }
1193 }
1194
1195 static void print_report(AVFormatContext **output_files,
1196 AVOutputStream **ost_table, int nb_ostreams,
1197 int is_last_report)
1198 {
1199 char buf[1024];
1200 AVOutputStream *ost;
1201 AVFormatContext *oc;
1202 int64_t total_size;
1203 AVCodecContext *enc;
1204 int frame_number, vid, i;
1205 double bitrate, ti1, pts;
1206 static int64_t last_time = -1;
1207 static int qp_histogram[52];
1208
1209 if (!is_last_report) {
1210 int64_t cur_time;
1211 /* display the report every 0.5 seconds */
1212 cur_time = av_gettime();
1213 if (last_time == -1) {
1214 last_time = cur_time;
1215 return;
1216 }
1217 if ((cur_time - last_time) < 500000)
1218 return;
1219 last_time = cur_time;
1220 }
1221
1222
1223 oc = output_files[0];
1224
1225 total_size = url_fsize(oc->pb);
1226 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
1227 total_size= url_ftell(oc->pb);
1228
1229 buf[0] = '\0';
1230 ti1 = 1e10;
1231 vid = 0;
1232 for(i=0;i<nb_ostreams;i++) {
1233 ost = ost_table[i];
1234 enc = ost->st->codec;
1235 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1236 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1237 !ost->st->stream_copy ?
1238 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1239 }
1240 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1241 float t = (av_gettime()-timer_start) / 1000000.0;
1242
1243 frame_number = ost->frame_number;
1244 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1245 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
1246 !ost->st->stream_copy ?
1247 enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1248 if(is_last_report)
1249 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1250 if(qp_hist){
1251 int j;
1252 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1253 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1254 qp_histogram[qp]++;
1255 for(j=0; j<32; j++)
1256 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1257 }
1258 if (enc->flags&CODEC_FLAG_PSNR){
1259 int j;
1260 double error, error_sum=0;
1261 double scale, scale_sum=0;
1262 char type[3]= {'Y','U','V'};
1263 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1264 for(j=0; j<3; j++){
1265 if(is_last_report){
1266 error= enc->error[j];
1267 scale= enc->width*enc->height*255.0*255.0*frame_number;
1268 }else{
1269 error= enc->coded_frame->error[j];
1270 scale= enc->width*enc->height*255.0*255.0;
1271 }
1272 if(j) scale/=4;
1273 error_sum += error;
1274 scale_sum += scale;
1275 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1276 }
1277 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1278 }
1279 vid = 1;
1280 }
1281 /* compute min output value */
1282 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1283 if ((pts < ti1) && (pts > 0))
1284 ti1 = pts;
1285 }
1286 if (ti1 < 0.01)
1287 ti1 = 0.01;
1288
1289 if (verbose || is_last_report) {
1290 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1291
1292 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1293 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1294 (double)total_size / 1024, ti1, bitrate);
1295
1296 if (nb_frames_dup || nb_frames_drop)
1297 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1298 nb_frames_dup, nb_frames_drop);
1299
1300 if (verbose >= 0)
1301 fprintf(stderr, "%s \r", buf);
1302
1303 fflush(stderr);
1304 }
1305
1306 if (is_last_report && verbose >= 0){
1307 int64_t raw= audio_size + video_size + extra_size;
1308 fprintf(stderr, "\n");
1309 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1310 video_size/1024.0,
1311 audio_size/1024.0,
1312 extra_size/1024.0,
1313 100.0*(total_size - raw)/raw
1314 );
1315 }
1316 }
1317
1318 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1319 static int output_packet(AVInputStream *ist, int ist_index,
1320 AVOutputStream **ost_table, int nb_ostreams,
1321 const AVPacket *pkt)
1322 {
1323 AVFormatContext *os;
1324 AVOutputStream *ost;
1325 int ret, i;
1326 int got_picture;
1327 AVFrame picture;
1328 void *buffer_to_free;
1329 static unsigned int samples_size= 0;
1330 AVSubtitle subtitle, *subtitle_to_free;
1331 int got_subtitle;
1332 AVPacket avpkt;
1333 int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;
1334
1335 if(ist->next_pts == AV_NOPTS_VALUE)
1336 ist->next_pts= ist->pts;
1337
1338 if (pkt == NULL) {
1339 /* EOF handling */
1340 av_init_packet(&avpkt);
1341 avpkt.data = NULL;
1342 avpkt.size = 0;
1343 goto handle_eof;
1344 } else {
1345 avpkt = *pkt;
1346 }
1347
1348 if(pkt->dts != AV_NOPTS_VALUE)
1349 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1350
1351 //while we have more to decode or while the decoder did output something on EOF
1352 while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
1353 uint8_t *data_buf, *decoded_data_buf;
1354 int data_size, decoded_data_size;
1355 handle_eof:
1356 ist->pts= ist->next_pts;
1357
1358 if(avpkt.size && avpkt.size != pkt->size &&
1359 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1360 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1361 ist->showed_multi_packet_warning=1;
1362 }
1363
1364 /* decode the packet if needed */
1365 decoded_data_buf = NULL; /* fail safe */
1366 decoded_data_size= 0;
1367 data_buf = avpkt.data;
1368 data_size = avpkt.size;
1369 subtitle_to_free = NULL;
1370 if (ist->decoding_needed) {
1371 switch(ist->st->codec->codec_type) {
1372 case AVMEDIA_TYPE_AUDIO:{
1373 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1374 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1375 av_free(samples);
1376 samples= av_malloc(samples_size);
1377 }
1378 decoded_data_size= samples_size;
1379 /* XXX: could avoid copy if PCM 16 bits with same
1380 endianness as CPU */
1381 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1382 &avpkt);
1383 if (ret < 0)
1384 goto fail_decode;
1385 avpkt.data += ret;
1386 avpkt.size -= ret;
1387 data_size = ret;
1388 /* Some bug in mpeg audio decoder gives */
1389 /* decoded_data_size < 0, it seems they are overflows */
1390 if (decoded_data_size <= 0) {
1391 /* no audio frame */
1392 continue;
1393 }
1394 decoded_data_buf = (uint8_t *)samples;
1395 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1396 (ist->st->codec->sample_rate * ist->st->codec->channels);
1397 break;}
1398 case AVMEDIA_TYPE_VIDEO:
1399 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1400 /* XXX: allocate picture correctly */
1401 avcodec_get_frame_defaults(&picture);
1402
1403 ret = avcodec_decode_video2(ist->st->codec,
1404 &picture, &got_picture, &avpkt);
1405 ist->st->quality= picture.quality;
1406 if (ret < 0)
1407 goto fail_decode;
1408 if (!got_picture) {
1409 /* no picture yet */
1410 goto discard_packet;
1411 }
1412 if (ist->st->codec->time_base.num != 0) {
1413 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1414 ist->next_pts += ((int64_t)AV_TIME_BASE *
1415 ist->st->codec->time_base.num * ticks) /
1416 ist->st->codec->time_base.den;
1417 }
1418 avpkt.size = 0;
1419 break;
1420 case AVMEDIA_TYPE_SUBTITLE:
1421 ret = avcodec_decode_subtitle2(ist->st->codec,
1422 &subtitle, &got_subtitle, &avpkt);
1423 if (ret < 0)
1424 goto fail_decode;
1425 if (!got_subtitle) {
1426 goto discard_packet;
1427 }
1428 subtitle_to_free = &subtitle;
1429 avpkt.size = 0;
1430 break;
1431 default:
1432 goto fail_decode;
1433 }
1434 } else {
1435 switch(ist->st->codec->codec_type) {
1436 case AVMEDIA_TYPE_AUDIO:
1437 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1438 ist->st->codec->sample_rate;
1439 break;
1440 case AVMEDIA_TYPE_VIDEO:
1441 if (ist->st->codec->time_base.num != 0) {
1442 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1443 ist->next_pts += ((int64_t)AV_TIME_BASE *
1444 ist->st->codec->time_base.num * ticks) /
1445 ist->st->codec->time_base.den;
1446 }
1447 break;
1448 }
1449 ret = avpkt.size;
1450 avpkt.size = 0;
1451 }
1452
1453 buffer_to_free = NULL;
1454 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1455 pre_process_video_frame(ist, (AVPicture *)&picture,
1456 &buffer_to_free);
1457 }
1458
1459 // preprocess audio (volume)
1460 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1461 if (audio_volume != 256) {
1462 short *volp;
1463 volp = samples;
1464 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1465 int v = ((*volp) * audio_volume + 128) >> 8;
1466 if (v < -32768) v = -32768;
1467 if (v > 32767) v = 32767;
1468 *volp++ = v;
1469 }
1470 }
1471 }
1472
1473 /* frame rate emulation */
1474 if (rate_emu) {
1475 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1476 int64_t now = av_gettime() - ist->start;
1477 if (pts > now)
1478 usleep(pts - now);
1479 }
1480
1481 /* if output time reached then transcode raw format,
1482 encode packets and output them */
1483 if (start_time == 0 || ist->pts >= start_time)
1484 for(i=0;i<nb_ostreams;i++) {
1485 int frame_size;
1486
1487 ost = ost_table[i];
1488 if (ost->source_index == ist_index) {
1489 os = output_files[ost->file_index];
1490
1491 /* set the input output pts pairs */
1492 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1493
1494 if (ost->encoding_needed) {
1495 assert(ist->decoding_needed);
1496 switch(ost->st->codec->codec_type) {
1497 case AVMEDIA_TYPE_AUDIO:
1498 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1499 break;
1500 case AVMEDIA_TYPE_VIDEO:
1501 do_video_out(os, ost, ist, &picture, &frame_size);
1502 if (vstats_filename && frame_size)
1503 do_video_stats(os, ost, frame_size);
1504 break;
1505 case AVMEDIA_TYPE_SUBTITLE:
1506 do_subtitle_out(os, ost, ist, &subtitle,
1507 pkt->pts);
1508 break;
1509 default:
1510 abort();
1511 }
1512 } else {
1513 AVFrame avframe; //FIXME/XXX remove this
1514 AVPacket opkt;
1515 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1516
1517 av_init_packet(&opkt);
1518
1519 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1520 continue;
1521
1522 /* no reencoding needed : output the packet directly */
1523 /* force the input stream PTS */
1524
1525 avcodec_get_frame_defaults(&avframe);
1526 ost->st->codec->coded_frame= &avframe;
1527 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1528
1529 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1530 audio_size += data_size;
1531 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1532 video_size += data_size;
1533 ost->sync_opts++;
1534 }
1535
1536 opkt.stream_index= ost->index;
1537 if(pkt->pts != AV_NOPTS_VALUE)
1538 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1539 else
1540 opkt.pts= AV_NOPTS_VALUE;
1541
1542 if (pkt->dts == AV_NOPTS_VALUE)
1543 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1544 else
1545 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1546 opkt.dts -= ost_tb_start_time;
1547
1548 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1549 opkt.flags= pkt->flags;
1550
1551 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1552 if( ost->st->codec->codec_id != CODEC_ID_H264
1553 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1554 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1555 ) {
1556 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1557 opkt.destruct= av_destruct_packet;
1558 } else {
1559 opkt.data = data_buf;
1560 opkt.size = data_size;
1561 }
1562
1563 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);
1564 ost->st->codec->frame_number++;
1565 ost->frame_number++;
1566 av_free_packet(&opkt);
1567 }
1568 }
1569 }
1570 av_free(buffer_to_free);
1571 /* XXX: allocate the subtitles in the codec ? */
1572 if (subtitle_to_free) {
1573 if (subtitle_to_free->rects != NULL) {
1574 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1575 av_freep(&subtitle_to_free->rects[i]->pict.data[0]);
1576 av_freep(&subtitle_to_free->rects[i]->pict.data[1]);
1577 av_freep(&subtitle_to_free->rects[i]);
1578 }
1579 av_freep(&subtitle_to_free->rects);
1580 }
1581 subtitle_to_free->num_rects = 0;
1582 subtitle_to_free = NULL;
1583 }
1584 }
1585 discard_packet:
1586 if (pkt == NULL) {
1587 /* EOF handling */
1588
1589 for(i=0;i<nb_ostreams;i++) {
1590 ost = ost_table[i];
1591 if (ost->source_index == ist_index) {
1592 AVCodecContext *enc= ost->st->codec;
1593 os = output_files[ost->file_index];
1594
1595 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1596 continue;
1597 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1598 continue;
1599
1600 if (ost->encoding_needed) {
1601 for(;;) {
1602 AVPacket pkt;
1603 int fifo_bytes;
1604 av_init_packet(&pkt);
1605 pkt.stream_index= ost->index;
1606
1607 switch(ost->st->codec->codec_type) {
1608 case AVMEDIA_TYPE_AUDIO:
1609 fifo_bytes = av_fifo_size(ost->fifo);
1610 ret = 0;
1611 /* encode any samples remaining in fifo */
1612 if (fifo_bytes > 0) {
1613 int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
1614 int fs_tmp = enc->frame_size;
1615
1616 av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
1617 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1618 enc->frame_size = fifo_bytes / (osize * enc->channels);
1619 } else { /* pad */
1620 int frame_bytes = enc->frame_size*osize*enc->channels;
1621 if (samples_size < frame_bytes)
1622 av_exit(1);
1623 memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
1624 }
1625
1626 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1627 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1628 ost->st->time_base.num, enc->sample_rate);
1629 enc->frame_size = fs_tmp;
1630 }
1631 if(ret <= 0) {
1632 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1633 }
1634 if (ret < 0) {
1635 fprintf(stderr, "Audio encoding failed\n");
1636 av_exit(1);
1637 }
1638 audio_size += ret;
1639 pkt.flags |= AV_PKT_FLAG_KEY;
1640 break;
1641 case AVMEDIA_TYPE_VIDEO:
1642 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1643 if (ret < 0) {
1644 fprintf(stderr, "Video encoding failed\n");
1645 av_exit(1);
1646 }
1647 video_size += ret;
1648 if(enc->coded_frame && enc->coded_frame->key_frame)
1649 pkt.flags |= AV_PKT_FLAG_KEY;
1650 if (ost->logfile && enc->stats_out) {
1651 fprintf(ost->logfile, "%s", enc->stats_out);
1652 }
1653 break;
1654 default:
1655 ret=-1;
1656 }
1657
1658 if(ret<=0)
1659 break;
1660 pkt.data= bit_buffer;
1661 pkt.size= ret;
1662 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1663 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1664 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1665 }
1666 }
1667 }
1668 }
1669 }
1670
1671 return 0;
1672 fail_decode:
1673 return -1;
1674 }
1675
1676 static void print_sdp(AVFormatContext **avc, int n)
1677 {
1678 char sdp[2048];
1679
1680 avf_sdp_create(avc, n, sdp, sizeof(sdp));
1681 printf("SDP:\n%s\n", sdp);
1682 fflush(stdout);
1683 }
1684
1685 static int copy_chapters(int infile, int outfile)
1686 {
1687 AVFormatContext *is = input_files[infile];
1688 AVFormatContext *os = output_files[outfile];
1689 int i;
1690
1691 for (i = 0; i < is->nb_chapters; i++) {
1692 AVChapter *in_ch = is->chapters[i], *out_ch;
1693 AVMetadataTag *t = NULL;
1694 int64_t ts_off = av_rescale_q(start_time - input_files_ts_offset[infile],
1695 AV_TIME_BASE_Q, in_ch->time_base);
1696 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
1697 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1698
1699
1700 if (in_ch->end < ts_off)
1701 continue;
1702 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1703 break;
1704
1705 out_ch = av_mallocz(sizeof(AVChapter));
1706 if (!out_ch)
1707 return AVERROR(ENOMEM);
1708
1709 out_ch->id = in_ch->id;
1710 out_ch->time_base = in_ch->time_base;
1711 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1712 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1713
1714 while ((t = av_metadata_get(in_ch->metadata, "", t, AV_METADATA_IGNORE_SUFFIX)))
1715 av_metadata_set2(&out_ch->metadata, t->key, t->value, 0);
1716
1717 os->nb_chapters++;
1718 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
1719 if (!os->chapters)
1720 return AVERROR(ENOMEM);
1721 os->chapters[os->nb_chapters - 1] = out_ch;
1722 }
1723 return 0;
1724 }
1725
1726 /*
1727 * The following code is the main loop of the file converter
1728 */
1729 static int av_transcode(AVFormatContext **output_files,
1730 int nb_output_files,
1731 AVFormatContext **input_files,
1732 int nb_input_files,
1733 AVStreamMap *stream_maps, int nb_stream_maps)
1734 {
1735 int ret = 0, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1736 AVFormatContext *is, *os;
1737 AVCodecContext *codec, *icodec;
1738 AVOutputStream *ost, **ost_table = NULL;
1739 AVInputStream *ist, **ist_table = NULL;
1740 AVInputFile *file_table;
1741 char error[1024];
1742 int key;
1743 int want_sdp = 1;
1744 uint8_t no_packet[MAX_FILES]={0};
1745 int no_packet_count=0;
1746
1747 file_table= av_mallocz(nb_input_files * sizeof(AVInputFile));
1748 if (!file_table)
1749 goto fail;
1750
1751 /* input stream init */
1752 j = 0;
1753 for(i=0;i<nb_input_files;i++) {
1754 is = input_files[i];
1755 file_table[i].ist_index = j;
1756 file_table[i].nb_streams = is->nb_streams;
1757 j += is->nb_streams;
1758 }
1759 nb_istreams = j;
1760
1761 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1762 if (!ist_table)
1763 goto fail;
1764
1765 for(i=0;i<nb_istreams;i++) {
1766 ist = av_mallocz(sizeof(AVInputStream));
1767 if (!ist)
1768 goto fail;
1769 ist_table[i] = ist;
1770 }
1771 j = 0;
1772 for(i=0;i<nb_input_files;i++) {
1773 is = input_files[i];
1774 for(k=0;k<is->nb_streams;k++) {
1775 ist = ist_table[j++];
1776 ist->st = is->streams[k];
1777 ist->file_index = i;
1778 ist->index = k;
1779 ist->discard = 1; /* the stream is discarded by default
1780 (changed later) */
1781
1782 if (rate_emu) {
1783 ist->start = av_gettime();
1784 }
1785 }
1786 }
1787
1788 /* output stream init */
1789 nb_ostreams = 0;
1790 for(i=0;i<nb_output_files;i++) {
1791 os = output_files[i];
1792 if (!os->nb_streams) {
1793 dump_format(output_files[i], i, output_files[i]->filename, 1);
1794 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1795 av_exit(1);
1796 }
1797 nb_ostreams += os->nb_streams;
1798 }
1799 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1800 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1801 av_exit(1);
1802 }
1803
1804 /* Sanity check the mapping args -- do the input files & streams exist? */
1805 for(i=0;i<nb_stream_maps;i++) {
1806 int fi = stream_maps[i].file_index;
1807 int si = stream_maps[i].stream_index;
1808
1809 if (fi < 0 || fi > nb_input_files - 1 ||
1810 si < 0 || si > file_table[fi].nb_streams - 1) {
1811 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1812 av_exit(1);
1813 }
1814 fi = stream_maps[i].sync_file_index;
1815 si = stream_maps[i].sync_stream_index;
1816 if (fi < 0 || fi > nb_input_files - 1 ||
1817 si < 0 || si > file_table[fi].nb_streams - 1) {
1818 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1819 av_exit(1);
1820 }
1821 }
1822
1823 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1824 if (!ost_table)
1825 goto fail;
1826 for(i=0;i<nb_ostreams;i++) {
1827 ost = av_mallocz(sizeof(AVOutputStream));
1828 if (!ost)
1829 goto fail;
1830 ost_table[i] = ost;
1831 }
1832
1833 n = 0;
1834 for(k=0;k<nb_output_files;k++) {
1835 os = output_files[k];
1836 for(i=0;i<os->nb_streams;i++,n++) {
1837 int found;
1838 ost = ost_table[n];
1839 ost->file_index = k;
1840 ost->index = i;
1841 ost->st = os->streams[i];
1842 if (nb_stream_maps > 0) {
1843 ost->source_index = file_table[stream_maps[n].file_index].ist_index +
1844 stream_maps[n].stream_index;
1845
1846 /* Sanity check that the stream types match */
1847 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1848 int i= ost->file_index;
1849 dump_format(output_files[i], i, output_files[i]->filename, 1);
1850 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1851 stream_maps[n].file_index, stream_maps[n].stream_index,
1852 ost->file_index, ost->index);
1853 av_exit(1);
1854 }
1855
1856 } else {
1857 int best_nb_frames=-1;
1858 /* get corresponding input stream index : we select the first one with the right type */
1859 found = 0;
1860 for(j=0;j<nb_istreams;j++) {
1861 int skip=0;
1862 ist = ist_table[j];
1863 if(opt_programid){
1864 int pi,si;
1865 AVFormatContext *f= input_files[ ist->file_index ];
1866 skip=1;
1867 for(pi=0; pi<f->nb_programs; pi++){
1868 AVProgram *p= f->programs[pi];
1869 if(p->id == opt_programid)
1870 for(si=0; si<p->nb_stream_indexes; si++){
1871 if(f->streams[ p->stream_index[si] ] == ist->st)
1872 skip=0;
1873 }
1874 }
1875 }
1876 if (ist->discard && ist->st->discard != AVDISCARD_ALL && !skip &&
1877 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1878 if(best_nb_frames < ist->st->codec_info_nb_frames){
1879 best_nb_frames= ist->st->codec_info_nb_frames;
1880 ost->source_index = j;
1881 found = 1;
1882 }
1883 }
1884 }
1885
1886 if (!found) {
1887 if(! opt_programid) {
1888 /* try again and reuse existing stream */
1889 for(j=0;j<nb_istreams;j++) {
1890 ist = ist_table[j];
1891 if ( ist->st->codec->codec_type == ost->st->codec->codec_type
1892 && ist->st->discard != AVDISCARD_ALL) {
1893 ost->source_index = j;
1894 found = 1;
1895 }
1896 }
1897 }
1898 if (!found) {
1899 int i= ost->file_index;
1900 dump_format(output_files[i], i, output_files[i]->filename, 1);
1901 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1902 ost->file_index, ost->index);
1903 av_exit(1);
1904 }
1905 }
1906 }
1907 ist = ist_table[ost->source_index];
1908 ist->discard = 0;
1909 ost->sync_ist = (nb_stream_maps > 0) ?
1910 ist_table[file_table[stream_maps[n].sync_file_index].ist_index +
1911 stream_maps[n].sync_stream_index] : ist;
1912 }
1913 }
1914
1915 /* for each output stream, we compute the right encoding parameters */
1916 for(i=0;i<nb_ostreams;i++) {
1917 AVMetadataTag *t = NULL;
1918 ost = ost_table[i];
1919 os = output_files[ost->file_index];
1920 ist = ist_table[ost->source_index];
1921
1922 codec = ost->st->codec;
1923 icodec = ist->st->codec;
1924
1925 while ((t = av_metadata_get(ist->st->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
1926 av_metadata_set2(&ost->st->metadata, t->key, t->value, AV_METADATA_DONT_OVERWRITE);
1927 }
1928
1929 ost->st->disposition = ist->st->disposition;
1930 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1931 codec->chroma_sample_location = icodec->chroma_sample_location;
1932
1933 if (ost->st->stream_copy) {
1934 /* if stream_copy is selected, no need to decode or encode */
1935 codec->codec_id = icodec->codec_id;
1936 codec->codec_type = icodec->codec_type;
1937
1938 if(!codec->codec_tag){
1939 if( !os->oformat->codec_tag
1940 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1941 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1942 codec->codec_tag = icodec->codec_tag;
1943 }
1944
1945 codec->bit_rate = icodec->bit_rate;
1946 codec->extradata= icodec->extradata;
1947 codec->extradata_size= icodec->extradata_size;
1948 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){
1949 codec->time_base = icodec->time_base;
1950 codec->time_base.num *= icodec->ticks_per_frame;
1951 }else
1952 codec->time_base = ist->st->time_base;
1953 switch(codec->codec_type) {
1954 case AVMEDIA_TYPE_AUDIO:
1955 if(audio_volume != 256) {
1956 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1957 av_exit(1);
1958 }
1959 codec->channel_layout = icodec->channel_layout;
1960 codec->sample_rate = icodec->sample_rate;
1961 codec->channels = icodec->channels;
1962 codec->frame_size = icodec->frame_size;
1963 codec->block_align= icodec->block_align;
1964 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1965 codec->block_align= 0;
1966 if(codec->codec_id == CODEC_ID_AC3)
1967 codec->block_align= 0;
1968 break;
1969 case AVMEDIA_TYPE_VIDEO:
1970 codec->pix_fmt = icodec->pix_fmt;
1971 codec->width = icodec->width;
1972 codec->height = icodec->height;
1973 codec->has_b_frames = icodec->has_b_frames;
1974 break;
1975 case AVMEDIA_TYPE_SUBTITLE:
1976 codec->width = icodec->width;
1977 codec->height = icodec->height;
1978 break;
1979 default:
1980 abort();
1981 }
1982 } else {
1983 switch(codec->codec_type) {
1984 case AVMEDIA_TYPE_AUDIO:
1985 ost->fifo= av_fifo_alloc(1024);
1986 if(!ost->fifo)
1987 goto fail;
1988 ost->reformat_pair = MAKE_SFMT_PAIR(SAMPLE_FMT_NONE,SAMPLE_FMT_NONE);
1989 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1990 icodec->request_channels = codec->channels;
1991 ist->decoding_needed = 1;
1992 ost->encoding_needed = 1;
1993 break;
1994 case AVMEDIA_TYPE_VIDEO:
1995 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1996 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1997 av_exit(1);
1998 }
1999 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
2000 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
2001 ost->video_resample = ((codec->width != icodec->width -
2002 (frame_leftBand + frame_rightBand) +
2003 (frame_padleft + frame_padright)) ||
2004 (codec->height != icodec->height -
2005 (frame_topBand + frame_bottomBand) +
2006 (frame_padtop + frame_padbottom)) ||
2007 (codec->pix_fmt != icodec->pix_fmt));
2008 if (ost->video_crop) {
2009 ost->topBand = ost->original_topBand = frame_topBand;
2010 ost->bottomBand = ost->original_bottomBand = frame_bottomBand;
2011 ost->leftBand = ost->original_leftBand = frame_leftBand;
2012 ost->rightBand = ost->original_rightBand = frame_rightBand;
2013 }
2014 if (ost->video_pad) {
2015 ost->padtop = frame_padtop;
2016 ost->padleft = frame_padleft;
2017 ost->padbottom = frame_padbottom;
2018 ost->padright = frame_padright;
2019 if (!ost->video_resample) {
2020 avcodec_get_frame_defaults(&ost->pict_tmp);
2021 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2022 codec->width, codec->height))
2023 goto fail;
2024 }
2025 }
2026 if (ost->video_resample) {
2027 avcodec_get_frame_defaults(&ost->pict_tmp);
2028 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
2029 codec->width, codec->height)) {
2030 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
2031 av_exit(1);
2032 }
2033 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
2034 ost->img_resample_ctx = sws_getContext(
2035 icodec->width - (frame_leftBand + frame_rightBand),
2036 icodec->height - (frame_topBand + frame_bottomBand),
2037 icodec->pix_fmt,
2038 codec->width - (frame_padleft + frame_padright),
2039 codec->height - (frame_padtop + frame_padbottom),
2040 codec->pix_fmt,
2041 sws_flags, NULL, NULL, NULL);
2042 if (ost->img_resample_ctx == NULL) {
2043 fprintf(stderr, "Cannot get resampling context\n");
2044 av_exit(1);
2045 }
2046
2047 ost->original_height = icodec->height;
2048 ost->original_width = icodec->width;
2049
2050 codec->bits_per_raw_sample= 0;
2051 }
2052 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
2053 ost->resample_width = icodec->width - (frame_leftBand + frame_rightBand);
2054 ost->resample_pix_fmt= icodec->pix_fmt;
2055 ost->encoding_needed = 1;
2056 ist->decoding_needed = 1;
2057 break;
2058 case AVMEDIA_TYPE_SUBTITLE:
2059 ost->encoding_needed = 1;
2060 ist->decoding_needed = 1;
2061 break;
2062 default:
2063 abort();
2064 break;
2065 }
2066 /* two pass mode */
2067 if (ost->encoding_needed &&
2068 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2069 char logfilename[1024];
2070 FILE *f;
2071
2072 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2073 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2074 i);
2075 if (codec->flags & CODEC_FLAG_PASS1) {
2076 f = fopen(logfilename, "w");
2077 if (!f) {
2078 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2079 av_exit(1);
2080 }
2081 ost->logfile = f;
2082 } else {
2083 char *logbuffer;
2084 size_t logbuffer_size;
2085 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2086 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2087 av_exit(1);
2088 }
2089 codec->stats_in = logbuffer;
2090 }
2091 }
2092 }
2093 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2094 int size= codec->width * codec->height;
2095 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2096 }
2097 }
2098
2099 if (!bit_buffer)
2100 bit_buffer = av_malloc(bit_buffer_size);
2101 if (!bit_buffer) {
2102 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2103 bit_buffer_size);
2104 ret = AVERROR(ENOMEM);
2105 goto fail;
2106 }
2107
2108 /* open each encoder */
2109 for(i=0;i<nb_ostreams;i++) {
2110 ost = ost_table[i];
2111 if (ost->encoding_needed) {
2112 AVCodec *codec = output_codecs[i];
2113 if (!codec)
2114 codec = avcodec_find_encoder(ost->st->codec->codec_id);
2115 if (!codec) {
2116 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2117 ost->st->codec->codec_id, ost->file_index, ost->index);
2118 ret = AVERROR(EINVAL);
2119 goto dump_format;
2120 }
2121 if (avcodec_open(ost->st->codec, codec) < 0) {
2122 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2123 ost->file_index, ost->index);
2124 ret = AVERROR(EINVAL);
2125 goto dump_format;
2126 }
2127 extra_size += ost->st->codec->extradata_size;
2128 }
2129 }
2130
2131 /* open each decoder */
2132 for(i=0;i<nb_istreams;i++) {
2133 ist = ist_table[i];
2134 if (ist->decoding_needed) {
2135 AVCodec *codec = input_codecs[i];
2136 if (!codec)
2137 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2138 if (!codec) {
2139 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2140 ist->st->codec->codec_id, ist->file_index, ist->index);
2141 ret = AVERROR(EINVAL);
2142 goto dump_format;
2143 }
2144 if (avcodec_open(ist->st->codec, codec) < 0) {
2145 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2146 ist->file_index, ist->index);
2147 ret = AVERROR(EINVAL);
2148 goto dump_format;
2149 }
2150 //if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2151 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
2152 }
2153 }
2154
2155 /* init pts */
2156 for(i=0;i<nb_istreams;i++) {
2157 AVStream *st;
2158 ist = ist_table[i];
2159 st= ist->st;
2160 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2161 ist->next_pts = AV_NOPTS_VALUE;
2162 ist->is_start = 1;
2163 }
2164
2165 /* set meta data information from input file if required */
2166 for (i=0;i<nb_meta_data_maps;i++) {
2167 AVFormatContext *out_file;
2168 AVFormatContext *in_file;
2169 AVMetadataTag *mtag;
2170
2171 int out_file_index = meta_data_maps[i].out_file;
2172 int in_file_index = meta_data_maps[i].in_file;
2173 if (out_file_index < 0 || out_file_index >= nb_output_files) {
2174 snprintf(error, sizeof(error), "Invalid output file index %d map_meta_data(%d,%d)",
2175 out_file_index, out_file_index, in_file_index);
2176 ret = AVERROR(EINVAL);
2177 goto dump_format;
2178 }
2179 if (in_file_index < 0 || in_file_index >= nb_input_files) {
2180 snprintf(error, sizeof(error), "Invalid input file index %d map_meta_data(%d,%d)",
2181 in_file_index, out_file_index, in_file_index);
2182 ret = AVERROR(EINVAL);
2183 goto dump_format;
2184 }
2185
2186 out_file = output_files[out_file_index];
2187 in_file = input_files[in_file_index];
2188
2189
2190 mtag=NULL;
2191 while((mtag=av_metadata_get(in_file->metadata, "", mtag, AV_METADATA_IGNORE_SUFFIX)))
2192 av_metadata_set2(&out_file->metadata, mtag->key, mtag->value, AV_METADATA_DONT_OVERWRITE);
2193 av_metadata_conv(out_file, out_file->oformat->metadata_conv,
2194 in_file->iformat->metadata_conv);
2195 }
2196
2197 /* copy chapters from the first input file that has them*/
2198 for (i = 0; i < nb_input_files; i++) {
2199 if (!input_files[i]->nb_chapters)
2200 continue;
2201
2202 for (j = 0; j < nb_output_files; j++)
2203 if ((ret = copy_chapters(i, j)) < 0)
2204 goto dump_format;
2205 }
2206
2207 /* open files and write file headers */
2208 for(i=0;i<nb_output_files;i++) {
2209 os = output_files[i];
2210 if (av_write_header(os) < 0) {
2211 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2212 ret = AVERROR(EINVAL);
2213 goto dump_format;
2214 }
2215 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2216 want_sdp = 0;
2217 }
2218 }
2219
2220 dump_format:
2221 /* dump the file output parameters - cannot be done before in case
2222 of stream copy */
2223 for(i=0;i<nb_output_files;i++) {
2224 dump_format(output_files[i], i, output_files[i]->filename, 1);
2225 }
2226
2227 /* dump the stream mapping */
2228 if (verbose >= 0) {
2229 fprintf(stderr, "Stream mapping:\n");
2230 for(i=0;i<nb_ostreams;i++) {
2231 ost = ost_table[i];
2232 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2233 ist_table[ost->source_index]->file_index,
2234 ist_table[ost->source_index]->index,
2235 ost->file_index,
2236 ost->index);
2237 if (ost->sync_ist != ist_table[ost->source_index])
2238 fprintf(stderr, " [sync #%d.%d]",
2239 ost->sync_ist->file_index,
2240 ost->sync_ist->index);
2241 fprintf(stderr, "\n");
2242 }
2243 }
2244
2245 if (ret) {
2246 fprintf(stderr, "%s\n", error);
2247 goto fail;
2248 }
2249
2250 if (want_sdp) {
2251 print_sdp(output_files, nb_output_files);
2252 }
2253
2254 if (!using_stdin && verbose >= 0) {
2255 fprintf(stderr, "Press [q] to stop encoding\n");
2256 url_set_interrupt_cb(decode_interrupt_cb);
2257 }
2258 term_init();
2259
2260 timer_start = av_gettime();
2261
2262 for(; received_sigterm == 0;) {
2263 int file_index, ist_index;
2264 AVPacket pkt;
2265 double ipts_min;
2266 double opts_min;
2267
2268 redo:
2269 ipts_min= 1e100;
2270 opts_min= 1e100;
2271 /* if 'q' pressed, exits */
2272 if (!using_stdin) {
2273 if (q_pressed)
2274 break;
2275 /* read_key() returns 0 on EOF */
2276 key = read_key();
2277 if (key == 'q')
2278 break;
2279 }
2280
2281 /* select the stream that we must read now by looking at the
2282 smallest output pts */
2283 file_index = -1;
2284 for(i=0;i<nb_ostreams;i++) {
2285 double ipts, opts;
2286 ost = ost_table[i];
2287 os = output_files[ost->file_index];
2288 ist = ist_table[ost->source_index];
2289 if(ist->is_past_recording_time || no_packet[ist->file_index])
2290 continue;
2291 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2292 ipts = (double)ist->pts;
2293 if (!file_table[ist->file_index].eof_reached){
2294 if(ipts < ipts_min) {
2295 ipts_min = ipts;
2296 if(input_sync ) file_index = ist->file_index;
2297 }
2298 if(opts < opts_min) {
2299 opts_min = opts;
2300 if(!input_sync) file_index = ist->file_index;
2301 }
2302 }
2303 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2304 file_index= -1;
2305 break;
2306 }
2307 }
2308 /* if none, if is finished */
2309 if (file_index < 0) {
2310 if(no_packet_count){
2311 no_packet_count=0;
2312 memset(no_packet, 0, sizeof(no_packet));
2313 usleep(10000);
2314 continue;
2315 }
2316 break;
2317 }
2318
2319 /* finish if limit size exhausted */
2320 if (limit_filesize != 0 && limit_filesize < url_ftell(output_files[0]->pb))
2321 break;
2322
2323 /* read a frame from it and output it in the fifo */
2324 is = input_files[file_index];
2325 ret= av_read_frame(is, &pkt);
2326 if(ret == AVERROR(EAGAIN)){
2327 no_packet[file_index]=1;
2328 no_packet_count++;
2329 continue;
2330 }
2331 if (ret < 0) {
2332 file_table[file_index].eof_reached = 1;
2333 if (opt_shortest)
2334 break;
2335 else
2336 continue;
2337 }
2338
2339 no_packet_count=0;
2340 memset(no_packet, 0, sizeof(no_packet));
2341
2342 if (do_pkt_dump) {
2343 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
2344 }
2345 /* the following test is needed in case new streams appear
2346 dynamically in stream : we ignore them */
2347 if (pkt.stream_index >= file_table[file_index].nb_streams)
2348 goto discard_packet;
2349 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2350 ist = ist_table[ist_index];
2351 if (ist->discard)
2352 goto discard_packet;
2353
2354 if (pkt.dts != AV_NOPTS_VALUE)
2355 pkt.dts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2356 if (pkt.pts != AV_NOPTS_VALUE)
2357 pkt.pts += av_rescale_q(input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ist->st->time_base);
2358
2359 if(input_files_ts_scale[file_index][pkt.stream_index]){
2360 if(pkt.pts != AV_NOPTS_VALUE)
2361 pkt.pts *= input_files_ts_scale[file_index][pkt.stream_index];
2362 if(pkt.dts != AV_NOPTS_VALUE)
2363 pkt.dts *= input_files_ts_scale[file_index][pkt.stream_index];
2364 }
2365
2366 // 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);
2367 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2368 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2369 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2370 int64_t delta= pkt_dts - ist->next_pts;
2371 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2372 input_files_ts_offset[ist->file_index]-= delta;
2373 if (verbose > 2)
2374 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2375 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2376 if(pkt.pts != AV_NOPTS_VALUE)
2377 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2378 }
2379 }
2380
2381 /* finish if recording time exhausted */
2382 if (recording_time != INT64_MAX &&
2383 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2384 ist->is_past_recording_time = 1;
2385 goto discard_packet;
2386 }
2387
2388 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2389 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2390
2391 if (verbose >= 0)
2392 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2393 ist->file_index, ist->index);
2394 if (exit_on_error)
2395 av_exit(1);
2396 av_free_packet(&pkt);
2397 goto redo;
2398 }
2399
2400 discard_packet:
2401 av_free_packet(&pkt);
2402
2403 /* dump report by using the output first video and audio streams */
2404 print_report(output_files, ost_table, nb_ostreams, 0);
2405 }
2406
2407 /* at the end of stream, we must flush the decoder buffers */
2408 for(i=0;i<nb_istreams;i++) {
2409 ist = ist_table[i];
2410 if (ist->decoding_needed) {
2411 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2412 }
2413 }
2414
2415 term_exit();
2416
2417 /* write the trailer if needed and close file */
2418 for(i=0;i<nb_output_files;i++) {
2419 os = output_files[i];
2420 av_write_trailer(os);
2421 }
2422
2423 /* dump report by using the first video and audio streams */
2424 print_report(output_files, ost_table, nb_ostreams, 1);
2425
2426 /* close each encoder */
2427 for(i=0;i<nb_ostreams;i++) {
2428 ost = ost_table[i];
2429 if (ost->encoding_needed) {
2430 av_freep(&ost->st->codec->stats_in);
2431 avcodec_close(ost->st->codec);
2432 }
2433 }
2434
2435 /* close each decoder */
2436 for(i=0;i<nb_istreams;i++) {
2437 ist = ist_table[i];
2438 if (ist->decoding_needed) {
2439 avcodec_close(ist->st->codec);
2440 }
2441 }
2442
2443 /* finished ! */
2444 ret = 0;
2445
2446 fail:
2447 av_freep(&bit_buffer);
2448 av_free(file_table);
2449
2450 if (ist_table) {
2451 for(i=0;i<nb_istreams;i++) {
2452 ist = ist_table[i];
2453 av_free(ist);
2454 }
2455 av_free(ist_table);
2456 }
2457 if (ost_table) {
2458 for(i=0;i<nb_ostreams;i++) {
2459 ost = ost_table[i];
2460 if (ost) {
2461 if (ost->logfile) {
2462 fclose(ost->logfile);
2463 ost->logfile = NULL;
2464 }
2465 av_fifo_free(ost->fifo); /* works even if fifo is not
2466 initialized but set to zero */
2467 av_free(ost->pict_tmp.data[0]);
2468 if (ost->video_resample)
2469 sws_freeContext(ost->img_resample_ctx);
2470 if (ost->resample)
2471 audio_resample_close(ost->resample);
2472 if (ost->reformat_ctx)
2473 av_audio_convert_free(ost->reformat_ctx);
2474 av_free(ost);
2475 }
2476 }
2477 av_free(ost_table);
2478 }
2479 return ret;
2480 }
2481
2482 static void opt_format(const char *arg)
2483 {
2484 /* compatibility stuff for pgmyuv */
2485 if (!strcmp(arg, "pgmyuv")) {
2486 pgmyuv_compatibility_hack=1;
2487 // opt_image_format(arg);
2488 arg = "image2";
2489 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2490 }
2491
2492 last_asked_format = arg;
2493 }
2494
2495 static void opt_video_rc_override_string(const char *arg)
2496 {
2497 video_rc_override_string = arg;
2498 }
2499
2500 static int opt_me_threshold(const char *opt, const char *arg)
2501 {
2502 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2503 return 0;
2504 }
2505
2506 static int opt_verbose(const char *opt, const char *arg)
2507 {
2508 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2509 return 0;
2510 }
2511
2512 static int opt_frame_rate(const char *opt, const char *arg)
2513 {
2514 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2515 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2516 av_exit(1);
2517 }
2518 return 0;
2519 }
2520
2521 static int opt_bitrate(const char *opt, const char *arg)
2522 {
2523 int codec_type = opt[0]=='a' ? AVMEDIA_TYPE_AUDIO : AVMEDIA_TYPE_VIDEO;
2524
2525 opt_default(opt, arg);
2526
2527 if (av_get_int(avcodec_opts[codec_type], "b", NULL) < 1000)
2528 fprintf(stderr, "WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s\n");
2529
2530 return 0;
2531 }
2532
2533 static void opt_frame_crop_top(const char *arg)
2534 {
2535 frame_topBand = atoi(arg);
2536 if (frame_topBand < 0) {
2537 fprintf(stderr, "Incorrect top crop size\n");
2538 av_exit(1);
2539 }
2540 if ((frame_topBand) >= frame_height){
2541 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2542 av_exit(1);
2543 }
2544 frame_height -= frame_topBand;
2545 }
2546
2547 static void opt_frame_crop_bottom(const char *arg)
2548 {
2549 frame_bottomBand = atoi(arg);
2550 if (frame_bottomBand < 0) {
2551 fprintf(stderr, "Incorrect bottom crop size\n");
2552 av_exit(1);
2553 }
2554 if ((frame_bottomBand) >= frame_height){
2555 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2556 av_exit(1);
2557 }
2558 frame_height -= frame_bottomBand;
2559 }
2560
2561 static void opt_frame_crop_left(const char *arg)
2562 {
2563 frame_leftBand = atoi(arg);
2564 if (frame_leftBand < 0) {
2565 fprintf(stderr, "Incorrect left crop size\n");
2566 av_exit(1);
2567 }
2568 if ((frame_leftBand) >= frame_width){
2569 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2570 av_exit(1);
2571 }
2572 frame_width -= frame_leftBand;
2573 }
2574
2575 static void opt_frame_crop_right(const char *arg)
2576 {
2577 frame_rightBand = atoi(arg);
2578 if (frame_rightBand < 0) {
2579 fprintf(stderr, "Incorrect right crop size\n");
2580 av_exit(1);
2581 }
2582 if ((frame_rightBand) >= frame_width){
2583 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2584 av_exit(1);
2585 }
2586 frame_width -= frame_rightBand;
2587 }
2588
2589 static void opt_frame_size(const char *arg)
2590 {
2591 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2592 fprintf(stderr, "Incorrect frame size\n");
2593 av_exit(1);
2594 }
2595 }
2596
2597 static void opt_pad_color(const char *arg) {
2598 /* Input is expected to be six hex digits similar to
2599 how colors are expressed in html tags (but without the #) */
2600 int rgb = strtol(arg, NULL, 16);
2601 int r,g,b;
2602
2603 r = (rgb >> 16);
2604 g = ((rgb >> 8) & 255);
2605 b = (rgb & 255);
2606
2607 padcolor[0] = RGB_TO_Y(r,g,b);
2608 padcolor[1] = RGB_TO_U(r,g,b,0);
2609 padcolor[2] = RGB_TO_V(r,g,b,0);
2610 }
2611
2612 static void opt_frame_pad_top(const char *arg)
2613 {
2614 frame_padtop = atoi(arg);
2615 if (frame_padtop < 0) {
2616 fprintf(stderr, "Incorrect top pad size\n");
2617 av_exit(1);
2618 }
2619 }
2620
2621 static void opt_frame_pad_bottom(const char *arg)
2622 {
2623 frame_padbottom = atoi(arg);
2624 if (frame_padbottom < 0) {
2625 fprintf(stderr, "Incorrect bottom pad size\n");
2626 av_exit(1);
2627 }
2628 }
2629
2630
2631 static void opt_frame_pad_left(const char *arg)
2632 {
2633 frame_padleft = atoi(arg);
2634 if (frame_padleft < 0) {
2635 fprintf(stderr, "Incorrect left pad size\n");
2636 av_exit(1);
2637 }
2638 }
2639
2640
2641 static void opt_frame_pad_right(const char *arg)
2642 {
2643 frame_padright = atoi(arg);
2644 if (frame_padright < 0) {
2645 fprintf(stderr, "Incorrect right pad size\n");
2646 av_exit(1);
2647 }
2648 }
2649
2650 static void opt_frame_pix_fmt(const char *arg)
2651 {
2652 if (strcmp(arg, "list")) {
2653 frame_pix_fmt = av_get_pix_fmt(arg);
2654 if (frame_pix_fmt == PIX_FMT_NONE) {
2655 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2656 av_exit(1);
2657 }
2658 } else {
2659 show_pix_fmts();
2660 av_exit(0);
2661 }
2662 }
2663
2664 static void opt_frame_aspect_ratio(const char *arg)
2665 {
2666 int x = 0, y = 0;
2667 double ar = 0;
2668 const char *p;
2669 char *end;
2670
2671 p = strchr(arg, ':');
2672 if (p) {
2673 x = strtol(arg, &end, 10);
2674 if (end == p)
2675 y = strtol(end+1, &end, 10);
2676 if (x > 0 && y > 0)
2677 ar = (double)x / (double)y;
2678 } else
2679 ar = strtod(arg, NULL);
2680
2681 if (!ar) {
2682 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2683 av_exit(1);
2684 }
2685 frame_aspect_ratio = ar;
2686 }
2687
2688 static int opt_metadata(const char *opt, const char *arg)
2689 {
2690 char *mid= strchr(arg, '=');
2691
2692 if(!mid){
2693 fprintf(stderr, "Missing =\n");
2694 av_exit(1);
2695 }
2696 *mid++= 0;
2697
2698 metadata_count++;
2699 metadata= av_realloc(metadata, sizeof(*metadata)*metadata_count);
2700 metadata[metadata_count-1].key = av_strdup(arg);
2701 metadata[metadata_count-1].value= av_strdup(mid);
2702
2703 return 0;
2704 }
2705
2706 static void opt_qscale(const char *arg)
2707 {
2708 video_qscale = atof(arg);
2709 if (video_qscale <= 0 ||
2710 video_qscale > 255) {
2711 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2712 av_exit(1);
2713 }
2714 }
2715
2716 static void opt_top_field_first(const char *arg)
2717 {
2718 top_field_first= atoi(arg);
2719 }
2720
2721 static int opt_thread_count(const char *opt, const char *arg)
2722 {
2723 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2724 #if !HAVE_THREADS
2725 if (verbose >= 0)
2726 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2727 #endif
2728 return 0;
2729 }
2730
2731 static void opt_audio_sample_fmt(const char *arg)
2732 {
2733 if (strcmp(arg, "list"))
2734 audio_sample_fmt = avcodec_get_sample_fmt(arg);
2735 else {
2736 list_fmts(avcodec_sample_fmt_string, SAMPLE_FMT_NB);
2737 av_exit(0);
2738 }
2739 }
2740
2741 static int opt_audio_rate(const char *opt, const char *arg)
2742 {
2743 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2744 return 0;
2745 }
2746
2747 static int opt_audio_channels(const char *opt, const char *arg)
2748 {
2749 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2750 return 0;
2751 }
2752
2753 static void opt_video_channel(const char *arg)
2754 {
2755 video_channel = strtol(arg, NULL, 0);
2756 }
2757
2758 static void opt_video_standard(const char *arg)
2759 {
2760 video_standard = av_strdup(arg);
2761 }
2762
2763 static void opt_codec(int *pstream_copy, char **pcodec_name,
2764 int codec_type, const char *arg)
2765 {
2766 av_freep(pcodec_name);
2767 if (!strcmp(arg, "copy")) {
2768 *pstream_copy = 1;
2769 } else {
2770 *pcodec_name = av_strdup(arg);
2771 }
2772 }
2773
2774 static void opt_audio_codec(const char *arg)
2775 {
2776 opt_codec(&audio_stream_copy, &audio_codec_name, AVMEDIA_TYPE_AUDIO, arg);
2777 }
2778
2779 static void opt_audio_tag(const char *arg)
2780 {
2781 char *tail;
2782 audio_codec_tag= strtol(arg, &tail, 0);
2783
2784 if(!tail || *tail)
2785 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2786 }
2787
2788 static void opt_video_tag(const char *arg)
2789 {
2790 char *tail;
2791 video_codec_tag= strtol(arg, &tail, 0);
2792
2793 if(!tail || *tail)
2794 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2795 }
2796
2797 static void opt_video_codec(const char *arg)
2798 {
2799 opt_codec(&video_stream_copy, &video_codec_name, AVMEDIA_TYPE_VIDEO, arg);
2800 }
2801
2802 static void opt_subtitle_codec(const char *arg)
2803 {
2804 opt_codec(&subtitle_stream_copy, &subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, arg);
2805 }
2806
2807 static void opt_subtitle_tag(const char *arg)
2808 {
2809 char *tail;
2810 subtitle_codec_tag= strtol(arg, &tail, 0);
2811
2812 if(!tail || *tail)
2813 subtitle_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2814 }
2815
2816 static void opt_map(const char *arg)
2817 {
2818 AVStreamMap *m;
2819 char *p;
2820
2821 m = &stream_maps[nb_stream_maps++];
2822
2823 m->file_index = strtol(arg, &p, 0);
2824 if (*p)
2825 p++;
2826
2827 m->stream_index = strtol(p, &p, 0);
2828 if (*p) {
2829 p++;
2830 m->sync_file_index = strtol(p, &p, 0);
2831 if (*p)
2832 p++;
2833 m->sync_stream_index = strtol(p, &p, 0);
2834 } else {
2835 m->sync_file_index = m->file_index;
2836 m->sync_stream_index = m->stream_index;
2837 }
2838 }
2839
2840 static void opt_map_meta_data(const char *arg)
2841 {
2842 AVMetaDataMap *m;
2843 char *p;
2844
2845 m = &meta_data_maps[nb_meta_data_maps++];
2846
2847 m->out_file = strtol(arg, &p, 0);
2848 if (*p)
2849 p++;
2850
2851 m->in_file = strtol(p, &p, 0);
2852 }
2853
2854 static void opt_input_ts_scale(const char *arg)
2855 {
2856 unsigned int stream;
2857 double scale;
2858 char *p;
2859
2860 stream = strtol(arg, &p, 0);
2861 if (*p)
2862 p++;
2863 scale= strtod(p, &p);
2864
2865 if(stream >= MAX_STREAMS)
2866 av_exit(1);
2867
2868 input_files_ts_scale[nb_input_files][stream]= scale;
2869 }
2870
2871 static int opt_recording_time(const char *opt, const char *arg)
2872 {
2873 recording_time = parse_time_or_die(opt, arg, 1);
2874 return 0;
2875 }
2876
2877 static int opt_start_time(const char *opt, const char *arg)
2878 {
2879 start_time = parse_time_or_die(opt, arg, 1);
2880 return 0;
2881 }
2882
2883 static int opt_rec_timestamp(const char *opt, const char *arg)
2884 {
2885 rec_timestamp = parse_time_or_die(opt, arg, 0) / 1000000;
2886 return 0;
2887 }
2888
2889 static int opt_input_ts_offset(const char *opt, const char *arg)
2890 {
2891 input_ts_offset = parse_time_or_die(opt, arg, 1);
2892 return 0;
2893 }
2894
2895 static enum CodecID find_codec_or_die(const char *name, int type, int encoder)
2896 {
2897 const char *codec_string = encoder ? "encoder" : "decoder";
2898 AVCodec *codec;
2899
2900 if(!name)
2901 return CODEC_ID_NONE;
2902 codec = encoder ?
2903 avcodec_find_encoder_by_name(name) :
2904 avcodec_find_decoder_by_name(name);
2905 if(!codec) {
2906 fprintf(stderr, "Unknown %s '%s'\n", codec_string, name);
2907 av_exit(1);
2908 }
2909 if(codec->type != type) {
2910 fprintf(stderr, "Invalid %s type '%s'\n", codec_string, name);
2911 av_exit(1);
2912 }
2913 return codec->id;
2914 }
2915
2916 static void opt_input_file(const char *filename)
2917 {
2918 AVFormatContext *ic;
2919 AVFormatParameters params, *ap = &params;
2920 AVInputFormat *file_iformat = NULL;
2921 int err, i, ret, rfps, rfps_base;
2922 int64_t timestamp;
2923
2924 if (last_asked_format) {
2925 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2926 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2927 av_exit(1);
2928 }
2929 last_asked_format = NULL;
2930 }
2931
2932 if (!strcmp(filename, "-"))
2933 filename = "pipe:";
2934
2935 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2936 !strcmp(filename, "/dev/stdin");
2937
2938 /* get default parameters from command line */
2939 ic = avformat_alloc_context();
2940 if (!ic) {
2941 print_error(filename, AVERROR(ENOMEM));
2942 av_exit(1);
2943 }
2944
2945 memset(ap, 0, sizeof(*ap));
2946 ap->prealloced_context = 1;
2947 ap->sample_rate = audio_sample_rate;
2948 ap->channels = audio_channels;
2949 ap->time_base.den = frame_rate.num;
2950 ap->time_base.num = frame_rate.den;
2951 ap->width = frame_width + frame_padleft + frame_padright;
2952 ap->height = frame_height + frame_padtop + frame_padbottom;
2953 ap->pix_fmt = frame_pix_fmt;
2954 // ap->sample_fmt = audio_sample_fmt; //FIXME:not implemented in libavformat
2955 ap->channel = video_channel;
2956 ap->standard = video_standard;
2957
2958 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
2959
2960 ic->video_codec_id = find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0);
2961 ic->audio_codec_id = find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0);
2962 ic->subtitle_codec_id= find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
2963 ic->flags |= AVFMT_FLAG_NONBLOCK;
2964
2965 if(pgmyuv_compatibility_hack)
2966 ic->video_codec_id= CODEC_ID_PGMYUV;
2967
2968 /* open the input file with generic libav function */
2969 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2970 if (err < 0) {
2971 print_error(filename, err);
2972 av_exit(1);
2973 }
2974 if(opt_programid) {
2975 int i, j;
2976 int found=0;
2977 for(i=0; i<ic->nb_streams; i++){
2978 ic->streams[i]->discard= AVDISCARD_ALL;
2979 }
2980 for(i=0; i<ic->nb_programs; i++){
2981 AVProgram *p= ic->programs[i];
2982 if(p->id != opt_programid){
2983 p->discard = AVDISCARD_ALL;
2984 }else{
2985 found=1;
2986 for(j=0; j<p->nb_stream_indexes; j++){
2987 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2988 }
2989 }
2990 }
2991 if(!found){
2992 fprintf(stderr, "Specified program id not found\n");
2993 av_exit(1);
2994 }
2995 opt_programid=0;
2996 }
2997
2998 ic->loop_input = loop_input;
2999
3000 /* If not enough info to get the stream parameters, we decode the
3001 first frames to get it. (used in mpeg case for example) */
3002 ret = av_find_stream_info(ic);
3003 if (ret < 0 && verbose >= 0) {
3004 fprintf(stderr, "%s: could not find codec parameters\n", filename);
3005 av_exit(1);
3006 }
3007
3008 timestamp = start_time;
3009 /* add the stream start time */
3010 if (ic->start_time != AV_NOPTS_VALUE)
3011 timestamp += ic->start_time;
3012
3013 /* if seeking requested, we execute it */
3014 if (start_time != 0) {
3015 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
3016 if (ret < 0) {
3017 fprintf(stderr, "%s: could not seek to position %0.3f\n",
3018 filename, (double)timestamp / AV_TIME_BASE);
3019 }
3020 /* reset seek info */
3021 start_time = 0;
3022 }
3023
3024 /* update the current parameters so that they match the one of the input stream */
3025 for(i=0;i<ic->nb_streams;i++) {
3026 AVStream *st = ic->streams[i];
3027 AVCodecContext *enc = st->codec;
3028 avcodec_thread_init(enc, thread_count);
3029 switch(enc->codec_type) {
3030 case AVMEDIA_TYPE_AUDIO:
3031 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3032 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
3033 channel_layout = enc->channel_layout;
3034 audio_channels = enc->channels;
3035 audio_sample_rate = enc->sample_rate;
3036 audio_sample_fmt = enc->sample_fmt;
3037 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
3038 if(audio_disable)
3039 st->discard= AVDISCARD_ALL;
3040 break;
3041 case AVMEDIA_TYPE_VIDEO:
3042 set_context_opts(enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
3043 frame_height = enc->height;
3044 frame_width = enc->width;
3045 if(ic->streams[i]->sample_aspect_ratio.num)
3046 frame_aspect_ratio=av_q2d(ic->streams[i]->sample_aspect_ratio);
3047 else
3048 frame_aspect_ratio=av_q2d(enc->sample_aspect_ratio);
3049 frame_aspect_ratio *= (float) enc->width / enc->height;
3050 frame_pix_fmt = enc->pix_fmt;
3051 rfps = ic->streams[i]->r_frame_rate.num;
3052 rfps_base = ic->streams[i]->r_frame_rate.den;
3053 if(enc->lowres) {
3054 enc->flags |= CODEC_FLAG_EMU_EDGE;
3055 frame_height >>= enc->lowres;
3056 frame_width >>= enc->lowres;
3057 }
3058 if(me_threshold)
3059 enc->debug |= FF_DEBUG_MV;
3060
3061 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
3062
3063 if (verbose >= 0)
3064 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3065 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
3066
3067 (float)rfps / rfps_base, rfps, rfps_base);
3068 }
3069 /* update the current frame rate to match the stream frame rate */
3070 frame_rate.num = rfps;
3071 frame_rate.den = rfps_base;
3072
3073 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
3074 if(video_disable)
3075 st->discard= AVDISCARD_ALL;
3076 else if(video_discard)
3077 st->discard= video_discard;
3078 break;
3079 case AVMEDIA_TYPE_DATA:
3080 break;
3081 case AVMEDIA_TYPE_SUBTITLE:
3082 input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(subtitle_codec_name);
3083 if(subtitle_disable)
3084 st->discard = AVDISCARD_ALL;
3085 break;
3086 case AVMEDIA_TYPE_ATTACHMENT:
3087 case AVMEDIA_TYPE_UNKNOWN:
3088 nb_icodecs++;
3089 break;
3090 default:
3091 abort();
3092 }
3093 }
3094
3095 input_files[nb_input_files] = ic;
3096 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3097 /* dump the file content */
3098 if (verbose >= 0)
3099 dump_format(ic, nb_input_files, filename, 0);
3100
3101 nb_input_files++;
3102
3103 video_channel = 0;
3104
3105 av_freep(&video_codec_name);
3106 av_freep(&audio_codec_name);
3107 av_freep(&subtitle_codec_name);
3108 }
3109
3110 static void check_audio_video_sub_inputs(int *has_video_ptr, int *has_audio_ptr,
3111 int *has_subtitle_ptr)
3112 {
3113 int has_video, has_audio, has_subtitle, i, j;
3114 AVFormatContext *ic;
3115
3116 has_video = 0;
3117 has_audio = 0;
3118 has_subtitle = 0;
3119 for(j=0;j<nb_input_files;j++) {
3120 ic = input_files[j];
3121 for(i=0;i<ic->nb_streams;i++) {
3122 AVCodecContext *enc = ic->streams[i]->codec;
3123 switch(enc->codec_type) {
3124 case AVMEDIA_TYPE_AUDIO:
3125 has_audio = 1;
3126 break;
3127 case AVMEDIA_TYPE_VIDEO:
3128 has_video = 1;
3129 break;
3130 case AVMEDIA_TYPE_SUBTITLE:
3131 has_subtitle = 1;
3132 break;
3133 case AVMEDIA_TYPE_DATA:
3134 case AVMEDIA_TYPE_ATTACHMENT:
3135 case AVMEDIA_TYPE_UNKNOWN:
3136 break;
3137 default:
3138 abort();
3139 }
3140 }
3141 }
3142 *has_video_ptr = has_video;
3143 *has_audio_ptr = has_audio;
3144 *has_subtitle_ptr = has_subtitle;
3145 }
3146
3147 static void new_video_stream(AVFormatContext *oc)
3148 {
3149 AVStream *st;
3150 AVCodecContext *video_enc;
3151 enum CodecID codec_id;
3152
3153 st = av_new_stream(oc, oc->nb_streams);
3154 if (!st) {
3155 fprintf(stderr, "Could not alloc stream\n");
3156 av_exit(1);
3157 }
3158 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
3159 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3160 video_bitstream_filters= NULL;
3161
3162 avcodec_thread_init(st->codec, thread_count);
3163
3164 video_enc = st->codec;
3165
3166 if(video_codec_tag)
3167 video_enc->codec_tag= video_codec_tag;
3168
3169 if( (video_global_header&1)
3170 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3171 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3172 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3173 }
3174 if(video_global_header&2){
3175 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3176 avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3177 }
3178
3179 if (video_stream_copy) {
3180 st->stream_copy = 1;
3181 video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
3182 video_enc->sample_aspect_ratio =
3183 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3184 } else {
3185 const char *p;
3186 int i;
3187 AVCodec *codec;
3188 AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
3189
3190 if (video_codec_name) {
3191 codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1);
3192 codec = avcodec_find_encoder_by_name(video_codec_name);
3193 output_codecs[nb_ocodecs] = codec;
3194 } else {
3195 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
3196 codec = avcodec_find_encoder(codec_id);
3197 }
3198
3199 video_enc->codec_id = codec_id;
3200
3201 set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3202
3203 if (codec && codec->supported_framerates && !force_fps)
3204 fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
3205 video_enc->time_base.den = fps.num;
3206 video_enc->time_base.num = fps.den;
3207
3208 video_enc->width = frame_width + frame_padright + frame_padleft;
3209 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3210 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
3211 video_enc->pix_fmt = frame_pix_fmt;
3212 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3213
3214 choose_pixel_fmt(st, codec);
3215
3216 if (intra_only)
3217 video_enc->gop_size = 0;
3218 if (video_qscale || same_quality) {
3219 video_enc->flags |= CODEC_FLAG_QSCALE;
3220 video_enc->global_quality=
3221 st->quality = FF_QP2LAMBDA * video_qscale;
3222 }
3223
3224 if(intra_matrix)
3225 video_enc->intra_matrix = intra_matrix;
3226 if(inter_matrix)
3227 video_enc->inter_matrix = inter_matrix;
3228
3229 p= video_rc_override_string;
3230 for(i=0; p; i++){
3231 int start, end, q;
3232 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3233 if(e!=3){
3234 fprintf(stderr, "error parsing rc_override\n");
3235 av_exit(1);
3236 }
3237 video_enc->rc_override=
3238 av_realloc(video_enc->rc_override,
3239 sizeof(RcOverride)*(i+1));
3240 video_enc->rc_override[i].start_frame= start;
3241 video_enc->rc_override[i].end_frame = end;
3242 if(q>0){
3243 video_enc->rc_override[i].qscale= q;
3244 video_enc->rc_override[i].quality_factor= 1.0;
3245 }
3246 else{
3247 video_enc->rc_override[i].qscale= 0;
3248 video_enc->rc_override[i].quality_factor= -q/100.0;
3249 }
3250 p= strchr(p, '/');
3251 if(p) p++;
3252 }
3253 video_enc->rc_override_count=i;
3254 if (!video_enc->rc_initial_buffer_occupancy)
3255 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3256 video_enc->me_threshold= me_threshold;
3257 video_enc->intra_dc_precision= intra_dc_precision - 8;
3258
3259 if (do_psnr)
3260 video_enc->flags|= CODEC_FLAG_PSNR;
3261
3262 /* two pass mode */
3263 if (do_pass) {
3264 if (do_pass == 1) {
3265 video_enc->flags |= CODEC_FLAG_PASS1;
3266 } else {
3267 video_enc->flags |= CODEC_FLAG_PASS2;
3268 }
3269 }
3270 }
3271 nb_ocodecs++;
3272 if (video_language) {
3273 av_metadata_set(&st->metadata, "language", video_language);
3274 av_freep(&video_language);
3275 }
3276
3277 /* reset some key parameters */
3278 video_disable = 0;
3279 av_freep(&video_codec_name);
3280 video_stream_copy = 0;
3281 frame_pix_fmt = PIX_FMT_NONE;
3282 }
3283
3284 static void new_audio_stream(AVFormatContext *oc)
3285 {
3286 AVStream *st;
3287 AVCodecContext *audio_enc;
3288 enum CodecID codec_id;
3289
3290 st = av_new_stream(oc, oc->nb_streams);
3291 if (!st) {
3292 fprintf(stderr, "Could not alloc stream\n");
3293 av_exit(1);
3294 }
3295 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
3296
3297 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3298 audio_bitstream_filters= NULL;
3299
3300 avcodec_thread_init(st->codec, thread_count);
3301
3302 audio_enc = st->codec;
3303 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3304
3305 if(audio_codec_tag)
3306 audio_enc->codec_tag= audio_codec_tag;
3307
3308 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3309 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3310 avcodec_opts[AVMEDIA_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
3311 }
3312 if (audio_stream_copy) {
3313 st->stream_copy = 1;
3314 audio_enc->channels = audio_channels;
3315 } else {
3316 AVCodec *codec;
3317
3318 set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3319
3320 if (audio_codec_name) {
3321 codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1);
3322 codec = avcodec_find_encoder_by_name(audio_codec_name);
3323 output_codecs[nb_ocodecs] = codec;
3324 } else {
3325 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
3326 codec = avcodec_find_encoder(codec_id);
3327 }
3328 audio_enc->codec_id = codec_id;
3329
3330 if (audio_qscale > QSCALE_NONE) {
3331 audio_enc->flags |= CODEC_FLAG_QSCALE;
3332 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3333 }
3334 audio_enc->channels = audio_channels;
3335 audio_enc->sample_fmt = audio_sample_fmt;
3336 audio_enc->channel_layout = channel_layout;
3337 if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
3338 audio_enc->channel_layout = 0;
3339 choose_sample_fmt(st, codec);
3340 }
3341 nb_ocodecs++;
3342 audio_enc->sample_rate = audio_sample_rate;
3343 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3344 if (audio_language) {
3345 av_metadata_set(&st->metadata, "language", audio_language);
3346 av_freep(&audio_language);
3347 }
3348
3349 /* reset some key parameters */
3350 audio_disable = 0;
3351 av_freep(&audio_codec_name);
3352 audio_stream_copy = 0;
3353 }
3354
3355 static void new_subtitle_stream(AVFormatContext *oc)
3356 {
3357 AVStream *st;
3358 AVCodecContext *subtitle_enc;
3359
3360 st = av_new_stream(oc, oc->nb_streams);
3361 if (!st) {
3362 fprintf(stderr, "Could not alloc stream\n");
3363 av_exit(1);
3364 }
3365 avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
3366
3367 bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
3368 subtitle_bitstream_filters= NULL;
3369
3370 subtitle_enc = st->codec;
3371 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3372
3373 if(subtitle_codec_tag)
3374 subtitle_enc->codec_tag= subtitle_codec_tag;
3375
3376 if (subtitle_stream_copy) {
3377 st->stream_copy = 1;
3378 } else {
3379 set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
3380 subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1);
3381 output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
3382 }
3383 nb_ocodecs++;
3384
3385 if (subtitle_language) {
3386 av_metadata_set(&st->metadata, "language", subtitle_language);
3387 av_freep(&subtitle_language);
3388 }
3389
3390 subtitle_disable = 0;
3391 av_freep(&subtitle_codec_name);
3392 subtitle_stream_copy = 0;
3393 }
3394
3395 static void opt_new_audio_stream(void)
3396 {
3397 AVFormatContext *oc;
3398 if (nb_output_files <= 0) {
3399 fprintf(stderr, "At least one output file must be specified\n");
3400 av_exit(1);
3401 }
3402 oc = output_files[nb_output_files - 1];
3403 new_audio_stream(oc);
3404 }
3405
3406 static void opt_new_video_stream(void)
3407 {
3408 AVFormatContext *oc;
3409 if (nb_output_files <= 0) {
3410 fprintf(stderr, "At least one output file must be specified\n");
3411 av_exit(1);
3412 }
3413 oc = output_files[nb_output_files - 1];
3414 new_video_stream(oc);
3415 }
3416
3417 static void opt_new_subtitle_stream(void)
3418 {
3419 AVFormatContext *oc;
3420 if (nb_output_files <= 0) {
3421 fprintf(stderr, "At least one output file must be specified\n");
3422 av_exit(1);
3423 }
3424 oc = output_files[nb_output_files - 1];
3425 new_subtitle_stream(oc);
3426 }
3427
3428 static void opt_output_file(const char *filename)
3429 {
3430 AVFormatContext *oc;
3431 int use_video, use_audio, use_subtitle;
3432 int input_has_video, input_has_audio, input_has_subtitle;
3433 AVFormatParameters params, *ap = &params;
3434 AVOutputFormat *file_oformat;
3435
3436 if (!strcmp(filename, "-"))
3437 filename = "pipe:";
3438
3439 oc = avformat_alloc_context();
3440 if (!oc) {
3441 print_error(filename, AVERROR(ENOMEM));
3442 av_exit(1);
3443 }
3444
3445 if (last_asked_format) {
3446 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3447 if (!file_oformat) {
3448 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3449 av_exit(1);
3450 }
3451 last_asked_format = NULL;
3452 } else {
3453 file_oformat = av_guess_format(NULL, filename, NULL);
3454 if (!file_oformat) {
3455 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3456 filename);
3457 av_exit(1);
3458 }
3459 }
3460
3461 oc->oformat = file_oformat;
3462 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3463
3464 if (!strcmp(file_oformat->name, "ffm") &&
3465 av_strstart(filename, "http:", NULL)) {
3466 /* special case for files sent to ffserver: we get the stream
3467 parameters from ffserver */
3468 int err = read_ffserver_streams(oc, filename);
3469 if (err < 0) {
3470 print_error(filename, err);
3471 av_exit(1);
3472 }
3473 } else {
3474 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
3475 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
3476 use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
3477
3478 /* disable if no corresponding type found and at least one
3479 input file */
3480 if (nb_input_files > 0) {
3481 check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
3482 &input_has_subtitle);
3483 if (!input_has_video)
3484 use_video = 0;
3485 if (!input_has_audio)
3486 use_audio = 0;
3487 if (!input_has_subtitle)
3488 use_subtitle = 0;
3489 }
3490
3491 /* manual disable */
3492 if (audio_disable) {
3493 use_audio = 0;
3494 }
3495 if (video_disable) {
3496 use_video = 0;
3497 }
3498 if (subtitle_disable) {
3499 use_subtitle = 0;
3500 }
3501
3502 if (use_video) {
3503 new_video_stream(oc);
3504 }
3505
3506 if (use_audio) {
3507 new_audio_stream(oc);
3508 }
3509
3510 if (use_subtitle) {
3511 new_subtitle_stream(oc);
3512 }
3513
3514 oc->timestamp = rec_timestamp;
3515
3516 for(; metadata_count>0; metadata_count--){
3517 av_metadata_set(&oc->metadata, metadata[metadata_count-1].key,
3518 metadata[metadata_count-1].value);
3519 }
3520 av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
3521 }
3522
3523 output_files[nb_output_files++] = oc;
3524
3525 /* check filename in case of an image number is expected */
3526 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3527 if (!av_filename_number_test(oc->filename)) {
3528 print_error(oc->filename, AVERROR_NUMEXPECTED);
3529 av_exit(1);
3530 }
3531 }
3532
3533 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3534 /* test if it already exists to avoid loosing precious files */
3535 if (!file_overwrite &&
3536 (strchr(filename, ':') == NULL ||
3537 filename[1] == ':' ||
3538 av_strstart(filename, "file:", NULL))) {
3539 if (url_exist(filename)) {
3540 if (!using_stdin) {
3541 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3542 fflush(stderr);
3543 if (!read_yesno()) {
3544 fprintf(stderr, "Not overwriting - exiting\n");
3545 av_exit(1);
3546 }
3547 }
3548 else {
3549 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3550 av_exit(1);
3551 }
3552 }
3553 }
3554
3555 /* open the file */
3556 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
3557 fprintf(stderr, "Could not open '%s'\n", filename);
3558 av_exit(1);
3559 }
3560 }
3561
3562 memset(ap, 0, sizeof(*ap));
3563 if (av_set_parameters(oc, ap) < 0) {
3564 fprintf(stderr, "%s: Invalid encoding parameters\n",
3565 oc->filename);
3566 av_exit(1);
3567 }
3568
3569 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3570 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3571 oc->loop_output = loop_output;
3572 oc->flags |= AVFMT_FLAG_NONBLOCK;
3573
3574 set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
3575 }
3576
3577 /* same option as mencoder */
3578 static void opt_pass(const char *pass_str)
3579 {
3580 int pass;
3581 pass = atoi(pass_str);
3582 if (pass != 1 && pass != 2) {
3583 fprintf(stderr, "pass number can be only 1 or 2\n");
3584 av_exit(1);
3585 }
3586 do_pass = pass;
3587 }
3588
3589 static int64_t getutime(void)
3590 {
3591 #if HAVE_GETRUSAGE
3592 struct rusage rusage;
3593
3594 getrusage(RUSAGE_SELF, &rusage);
3595 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3596 #elif HAVE_GETPROCESSTIMES
3597 HANDLE proc;
3598 FILETIME c, e, k, u;
3599 proc = GetCurrentProcess();
3600 GetProcessTimes(proc, &c, &e, &k, &u);
3601 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
3602 #else
3603 return av_gettime();
3604 #endif
3605 }
3606
3607 static int64_t getmaxrss(void)
3608 {
3609 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
3610 struct rusage rusage;
3611 getrusage(RUSAGE_SELF, &rusage);
3612 return (int64_t)rusage.ru_maxrss * 1024;
3613 #elif HAVE_GETPROCESSMEMORYINFO
3614 HANDLE proc;
3615 PROCESS_MEMORY_COUNTERS memcounters;
3616 proc = GetCurrentProcess();
3617 memcounters.cb = sizeof(memcounters);
3618 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
3619 return memcounters.PeakPagefileUsage;
3620 #else
3621 return 0;
3622 #endif
3623 }
3624
3625 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3626 {
3627 int i;
3628 const char *p = str;
3629 for(i = 0;; i++) {
3630 dest[i] = atoi(p);
3631 if(i == 63)
3632 break;
3633 p = strchr(p, ',');
3634 if(!p) {
3635 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3636 av_exit(1);
3637 }
3638 p++;
3639 }
3640 }
3641
3642 static void opt_inter_matrix(const char *arg)
3643 {
3644 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3645 parse_matrix_coeffs(inter_matrix, arg);
3646 }
3647
3648 static void opt_intra_matrix(const char *arg)
3649 {
3650 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3651 parse_matrix_coeffs(intra_matrix, arg);
3652 }
3653
3654 /**
3655 * Trivial log callback.
3656 * Only suitable for show_help and similar since it lacks prefix handling.
3657 */
3658 static void log_callback_help(void* ptr, int level, const char* fmt, va_list vl)
3659 {
3660 vfprintf(stdout, fmt, vl);
3661 }
3662
3663 static void show_usage(void)
3664 {
3665 printf("Hyper fast Audio and Video encoder\n");
3666 printf("usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...\n");
3667 printf("\n");
3668 }
3669
3670 static void show_help(void)
3671 {
3672 av_log_set_callback(log_callback_help);
3673 show_usage();
3674 show_help_options(options, "Main options:\n",
3675 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
3676 show_help_options(options, "\nAdvanced options:\n",
3677 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
3678 OPT_EXPERT);
3679 show_help_options(options, "\nVideo options:\n",
3680 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3681 OPT_VIDEO);
3682 show_help_options(options, "\nAdvanced Video options:\n",
3683 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3684 OPT_VIDEO | OPT_EXPERT);
3685 show_help_options(options, "\nAudio options:\n",
3686 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3687 OPT_AUDIO);
3688 show_help_options(options, "\nAdvanced Audio options:\n",
3689 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
3690 OPT_AUDIO | OPT_EXPERT);
3691 show_help_options(options, "\nSubtitle options:\n",
3692 OPT_SUBTITLE | OPT_GRAB,
3693 OPT_SUBTITLE);
3694 show_help_options(options, "\nAudio/Video grab options:\n",
3695 OPT_GRAB,
3696 OPT_GRAB);
3697 printf("\n");
3698 av_opt_show(avcodec_opts[0], NULL);
3699 printf("\n");
3700 av_opt_show(avformat_opts, NULL);
3701 printf("\n");
3702 av_opt_show(sws_opts, NULL);
3703 }
3704
3705 static void opt_target(const char *arg)
3706 {
3707 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
3708 static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3709
3710 if(!strncmp(arg, "pal-",</