cb54e1d09897e41453f02e7ea7994154647648a5
[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 #include <signal.h>
23 #include <limits.h>
24 #include "avformat.h"
25 #include "swscale.h"
26 #include "framehook.h"
27 #include "opt.h"
28 #include "fifo.h"
29 #include "avstring.h"
30
31 #ifdef __MINGW32__
32 #include <conio.h>
33 #else
34 #include <unistd.h>
35 #include <fcntl.h>
36 #include <sys/ioctl.h>
37 #include <sys/time.h>
38 #include <termios.h>
39 #include <sys/resource.h>
40 #endif
41 #ifdef CONFIG_OS2
42 #include <sys/types.h>
43 #include <sys/select.h>
44 #include <stdlib.h>
45 #endif
46 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
47 #include <time.h>
48
49 #include "version.h"
50 #include "cmdutils.h"
51
52 #undef NDEBUG
53 #include <assert.h>
54
55 #if !defined(INFINITY) && defined(HUGE_VAL)
56 #define INFINITY HUGE_VAL
57 #endif
58
59 #undef exit
60
61 /* select an input stream for an output stream */
62 typedef struct AVStreamMap {
63 int file_index;
64 int stream_index;
65 int sync_file_index;
66 int sync_stream_index;
67 } AVStreamMap;
68
69 /** select an input file for an output file */
70 typedef struct AVMetaDataMap {
71 int out_file;
72 int in_file;
73 } AVMetaDataMap;
74
75 extern const OptionDef options[];
76
77 static void show_help(void);
78 static void show_license(void);
79 static int opt_default(const char *opt, const char *arg);
80
81 #define MAX_FILES 20
82
83 static AVFormatContext *input_files[MAX_FILES];
84 static int64_t input_files_ts_offset[MAX_FILES];
85 static int nb_input_files = 0;
86
87 static AVFormatContext *output_files[MAX_FILES];
88 static int nb_output_files = 0;
89
90 static AVStreamMap stream_maps[MAX_FILES];
91 static int nb_stream_maps;
92
93 static AVMetaDataMap meta_data_maps[MAX_FILES];
94 static int nb_meta_data_maps;
95
96 static AVInputFormat *file_iformat;
97 static AVOutputFormat *file_oformat;
98 static int frame_width = 0;
99 static int frame_height = 0;
100 static float frame_aspect_ratio = 0;
101 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
102 static int frame_padtop = 0;
103 static int frame_padbottom = 0;
104 static int frame_padleft = 0;
105 static int frame_padright = 0;
106 static int padcolor[3] = {16,128,128}; /* default to black */
107 static int frame_topBand = 0;
108 static int frame_bottomBand = 0;
109 static int frame_leftBand = 0;
110 static int frame_rightBand = 0;
111 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
112 static AVRational frame_rate = (AVRational) {25,1};
113 static float video_qscale = 0;
114 static int video_qdiff = 3;
115 static uint16_t *intra_matrix = NULL;
116 static uint16_t *inter_matrix = NULL;
117 #if 0 //experimental, (can be removed)
118 static float video_rc_qsquish=1.0;
119 static float video_rc_qmod_amp=0;
120 static int video_rc_qmod_freq=0;
121 #endif
122 static char *video_rc_override_string=NULL;
123 static char *video_rc_eq="tex^qComp";
124 static int me_method = ME_EPZS;
125 static int video_disable = 0;
126 static int video_discard = 0;
127 static int video_codec_id = CODEC_ID_NONE;
128 static int video_codec_tag = 0;
129 static int same_quality = 0;
130 static int do_deinterlace = 0;
131 static int strict = 0;
132 static int top_field_first = -1;
133 static int me_threshold = 0;
134 static int intra_dc_precision = 8;
135 static int loop_input = 0;
136 static int loop_output = AVFMT_NOOUTPUTLOOP;
137 static int qp_hist = 0;
138
139 static int intra_only = 0;
140 static int audio_sample_rate = 44100;
141 #define QSCALE_NONE -99999
142 static float audio_qscale = QSCALE_NONE;
143 static int audio_disable = 0;
144 static int audio_channels = 1;
145 static int audio_codec_id = CODEC_ID_NONE;
146 static int audio_codec_tag = 0;
147 static char *audio_language = NULL;
148
149 static int subtitle_codec_id = CODEC_ID_NONE;
150 static char *subtitle_language = NULL;
151
152 static float mux_preload= 0.5;
153 static float mux_max_delay= 0.7;
154
155 static int64_t recording_time = 0;
156 static int64_t start_time = 0;
157 static int64_t rec_timestamp = 0;
158 static int64_t input_ts_offset = 0;
159 static int file_overwrite = 0;
160 static char *str_title = NULL;
161 static char *str_author = NULL;
162 static char *str_copyright = NULL;
163 static char *str_comment = NULL;
164 static char *str_album = NULL;
165 static int do_benchmark = 0;
166 static int do_hex_dump = 0;
167 static int do_pkt_dump = 0;
168 static int do_psnr = 0;
169 static int do_pass = 0;
170 static char *pass_logfilename = NULL;
171 static int audio_stream_copy = 0;
172 static int video_stream_copy = 0;
173 static int subtitle_stream_copy = 0;
174 static int video_sync_method= 1;
175 static int audio_sync_method= 0;
176 static int copy_ts= 0;
177 static int opt_shortest = 0; //
178 static int video_global_header = 0;
179 static char *vstats_filename;
180 static FILE *fvstats;
181
182 static int rate_emu = 0;
183
184 static int video_channel = 0;
185 static char *video_standard;
186
187 static int audio_volume = 256;
188
189 static int using_stdin = 0;
190 static int using_vhook = 0;
191 static int verbose = 1;
192 static int thread_count= 1;
193 static int q_pressed = 0;
194 static int64_t video_size = 0;
195 static int64_t audio_size = 0;
196 static int64_t extra_size = 0;
197 static int nb_frames_dup = 0;
198 static int nb_frames_drop = 0;
199 static int input_sync;
200 static uint64_t limit_filesize = 0; //
201
202 static int pgmyuv_compatibility_hack=0;
203 static int dts_delta_threshold = 10;
204
205 static int sws_flags = SWS_BICUBIC;
206
207 static const char **opt_names;
208 static int opt_name_count;
209 static AVCodecContext *avctx_opts[CODEC_TYPE_NB];
210 static AVFormatContext *avformat_opts;
211 static struct SwsContext *sws_opts;
212 static int64_t timer_start;
213
214 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
215 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
216 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
217
218 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
219
220 struct AVInputStream;
221
222 typedef struct AVOutputStream {
223 int file_index; /* file index */
224 int index; /* stream index in the output file */
225 int source_index; /* AVInputStream index */
226 AVStream *st; /* stream in the output file */
227 int encoding_needed; /* true if encoding needed for this stream */
228 int frame_number;
229 /* input pts and corresponding output pts
230 for A/V sync */
231 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
232 struct AVInputStream *sync_ist; /* input stream to sync against */
233 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
234 /* video only */
235 int video_resample;
236 AVFrame pict_tmp; /* temporary image for resampling */
237 struct SwsContext *img_resample_ctx; /* for image resampling */
238 int resample_height;
239
240 int video_crop;
241 int topBand; /* cropping area sizes */
242 int leftBand;
243
244 int video_pad;
245 int padtop; /* padding area sizes */
246 int padbottom;
247 int padleft;
248 int padright;
249
250 /* audio only */
251 int audio_resample;
252 ReSampleContext *resample; /* for audio resampling */
253 AVFifoBuffer fifo; /* for compression: one audio fifo per codec */
254 FILE *logfile;
255 } AVOutputStream;
256
257 typedef struct AVInputStream {
258 int file_index;
259 int index;
260 AVStream *st;
261 int discard; /* true if stream data should be discarded */
262 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
263 int64_t sample_index; /* current sample */
264
265 int64_t start; /* time when read started */
266 unsigned long frame; /* current frame */
267 int64_t next_pts; /* synthetic pts for cases where pkt.pts
268 is not defined */
269 int64_t pts; /* current pts */
270 int is_start; /* is 1 at the start and after a discontinuity */
271 } AVInputStream;
272
273 typedef struct AVInputFile {
274 int eof_reached; /* true if eof reached */
275 int ist_index; /* index of first stream in ist_table */
276 int buffer_size; /* current total buffer size */
277 int nb_streams; /* nb streams we are aware of */
278 } AVInputFile;
279
280 #ifndef __MINGW32__
281
282 /* init terminal so that we can grab keys */
283 static struct termios oldtty;
284 #endif
285
286 static void term_exit(void)
287 {
288 #ifndef __MINGW32__
289 tcsetattr (0, TCSANOW, &oldtty);
290 #endif
291 }
292
293 static volatile sig_atomic_t received_sigterm = 0;
294
295 static void
296 sigterm_handler(int sig)
297 {
298 received_sigterm = sig;
299 term_exit();
300 }
301
302 static void term_init(void)
303 {
304 #ifndef __MINGW32__
305 struct termios tty;
306
307 tcgetattr (0, &tty);
308 oldtty = tty;
309
310 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
311 |INLCR|IGNCR|ICRNL|IXON);
312 tty.c_oflag |= OPOST;
313 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
314 tty.c_cflag &= ~(CSIZE|PARENB);
315 tty.c_cflag |= CS8;
316 tty.c_cc[VMIN] = 1;
317 tty.c_cc[VTIME] = 0;
318
319 tcsetattr (0, TCSANOW, &tty);
320 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
321 #endif
322
323 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
324 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
325 /*
326 register a function to be called at normal program termination
327 */
328 atexit(term_exit);
329 #ifdef CONFIG_BEOS_NETSERVER
330 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
331 #endif
332 }
333
334 /* read a key without blocking */
335 static int read_key(void)
336 {
337 #ifdef __MINGW32__
338 if(kbhit())
339 return(getch());
340 #else
341 int n = 1;
342 unsigned char ch;
343 #ifndef CONFIG_BEOS_NETSERVER
344 struct timeval tv;
345 fd_set rfds;
346
347 FD_ZERO(&rfds);
348 FD_SET(0, &rfds);
349 tv.tv_sec = 0;
350 tv.tv_usec = 0;
351 n = select(1, &rfds, NULL, NULL, &tv);
352 #endif
353 if (n > 0) {
354 n = read(0, &ch, 1);
355 if (n == 1)
356 return ch;
357
358 return n;
359 }
360 #endif
361 return -1;
362 }
363
364 static int decode_interrupt_cb(void)
365 {
366 return q_pressed || (q_pressed = read_key() == 'q');
367 }
368
369 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
370 {
371 int i, err;
372 AVFormatContext *ic;
373
374 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
375 if (err < 0)
376 return err;
377 /* copy stream format */
378 s->nb_streams = ic->nb_streams;
379 for(i=0;i<ic->nb_streams;i++) {
380 AVStream *st;
381
382 // FIXME: a more elegant solution is needed
383 st = av_mallocz(sizeof(AVStream));
384 memcpy(st, ic->streams[i], sizeof(AVStream));
385 st->codec = avcodec_alloc_context();
386 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
387 s->streams[i] = st;
388 }
389
390 av_close_input_file(ic);
391 return 0;
392 }
393
394 static double
395 get_sync_ipts(const AVOutputStream *ost)
396 {
397 const AVInputStream *ist = ost->sync_ist;
398 return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
399 }
400
401 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
402 while(bsfc){
403 AVPacket new_pkt= *pkt;
404 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
405 &new_pkt.data, &new_pkt.size,
406 pkt->data, pkt->size,
407 pkt->flags & PKT_FLAG_KEY);
408 if(a){
409 av_free_packet(pkt);
410 new_pkt.destruct= av_destruct_packet;
411 }
412 *pkt= new_pkt;
413
414 bsfc= bsfc->next;
415 }
416
417 av_interleaved_write_frame(s, pkt);
418 }
419
420 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
421
422 static void do_audio_out(AVFormatContext *s,
423 AVOutputStream *ost,
424 AVInputStream *ist,
425 unsigned char *buf, int size)
426 {
427 uint8_t *buftmp;
428 static uint8_t *audio_buf = NULL;
429 static uint8_t *audio_out = NULL;
430 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
431
432 int size_out, frame_bytes, ret;
433 AVCodecContext *enc= ost->st->codec;
434
435 /* SC: dynamic allocation of buffers */
436 if (!audio_buf)
437 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
438 if (!audio_out)
439 audio_out = av_malloc(audio_out_size);
440 if (!audio_buf || !audio_out)
441 return; /* Should signal an error ! */
442
443 if(audio_sync_method){
444 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
445 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2);
446 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
447 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
448
449 //FIXME resample delay
450 if(fabs(delta) > 50){
451 if(ist->is_start){
452 if(byte_delta < 0){
453 byte_delta= FFMAX(byte_delta, -size);
454 size += byte_delta;
455 buf -= byte_delta;
456 if(verbose > 2)
457 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
458 if(!size)
459 return;
460 ist->is_start=0;
461 }else{
462 static uint8_t *input_tmp= NULL;
463 input_tmp= av_realloc(input_tmp, byte_delta + size);
464
465 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
466 ist->is_start=0;
467 else
468 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
469
470 memset(input_tmp, 0, byte_delta);
471 memcpy(input_tmp + byte_delta, buf, size);
472 buf= input_tmp;
473 size += byte_delta;
474 if(verbose > 2)
475 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
476 }
477 }else if(audio_sync_method>1){
478 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
479 assert(ost->audio_resample);
480 if(verbose > 2)
481 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
482 // 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));
483 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
484 }
485 }
486 }else
487 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
488 - av_fifo_size(&ost->fifo)/(ost->st->codec->channels * 2); //FIXME wrong
489
490 if (ost->audio_resample) {
491 buftmp = audio_buf;
492 size_out = audio_resample(ost->resample,
493 (short *)buftmp, (short *)buf,
494 size / (ist->st->codec->channels * 2));
495 size_out = size_out * enc->channels * 2;
496 } else {
497 buftmp = buf;
498 size_out = size;
499 }
500
501 /* now encode as many frames as possible */
502 if (enc->frame_size > 1) {
503 /* output resampled raw samples */
504 av_fifo_write(&ost->fifo, buftmp, size_out);
505
506 frame_bytes = enc->frame_size * 2 * enc->channels;
507
508 while (av_fifo_read(&ost->fifo, audio_buf, frame_bytes) == 0) {
509 AVPacket pkt;
510 av_init_packet(&pkt);
511
512 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
513 (short *)audio_buf);
514 audio_size += ret;
515 pkt.stream_index= ost->index;
516 pkt.data= audio_out;
517 pkt.size= ret;
518 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
519 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
520 pkt.flags |= PKT_FLAG_KEY;
521 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
522
523 ost->sync_opts += enc->frame_size;
524 }
525 } else {
526 AVPacket pkt;
527 av_init_packet(&pkt);
528
529 ost->sync_opts += size_out / (2 * enc->channels);
530
531 /* output a pcm frame */
532 /* XXX: change encoding codec API to avoid this ? */
533 switch(enc->codec->id) {
534 case CODEC_ID_PCM_S32LE:
535 case CODEC_ID_PCM_S32BE:
536 case CODEC_ID_PCM_U32LE:
537 case CODEC_ID_PCM_U32BE:
538 size_out = size_out << 1;
539 break;
540 case CODEC_ID_PCM_S24LE:
541 case CODEC_ID_PCM_S24BE:
542 case CODEC_ID_PCM_U24LE:
543 case CODEC_ID_PCM_U24BE:
544 case CODEC_ID_PCM_S24DAUD:
545 size_out = size_out / 2 * 3;
546 break;
547 case CODEC_ID_PCM_S16LE:
548 case CODEC_ID_PCM_S16BE:
549 case CODEC_ID_PCM_U16LE:
550 case CODEC_ID_PCM_U16BE:
551 break;
552 default:
553 size_out = size_out >> 1;
554 break;
555 }
556 ret = avcodec_encode_audio(enc, audio_out, size_out,
557 (short *)buftmp);
558 audio_size += ret;
559 pkt.stream_index= ost->index;
560 pkt.data= audio_out;
561 pkt.size= ret;
562 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
563 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
564 pkt.flags |= PKT_FLAG_KEY;
565 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
566 }
567 }
568
569 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
570 {
571 AVCodecContext *dec;
572 AVPicture *picture2;
573 AVPicture picture_tmp;
574 uint8_t *buf = 0;
575
576 dec = ist->st->codec;
577
578 /* deinterlace : must be done before any resize */
579 if (do_deinterlace || using_vhook) {
580 int size;
581
582 /* create temporary picture */
583 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
584 buf = av_malloc(size);
585 if (!buf)
586 return;
587
588 picture2 = &picture_tmp;
589 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
590
591 if (do_deinterlace){
592 if(avpicture_deinterlace(picture2, picture,
593 dec->pix_fmt, dec->width, dec->height) < 0) {
594 /* if error, do not deinterlace */
595 av_free(buf);
596 buf = NULL;
597 picture2 = picture;
598 }
599 } else {
600 av_picture_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
601 }
602 } else {
603 picture2 = picture;
604 }
605
606 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height,
607 1000000 * ist->pts / AV_TIME_BASE);
608
609 if (picture != picture2)
610 *picture = *picture2;
611 *bufp = buf;
612 }
613
614 /* we begin to correct av delay at this threshold */
615 #define AV_DELAY_MAX 0.100
616
617 static void do_subtitle_out(AVFormatContext *s,
618 AVOutputStream *ost,
619 AVInputStream *ist,
620 AVSubtitle *sub,
621 int64_t pts)
622 {
623 static uint8_t *subtitle_out = NULL;
624 int subtitle_out_max_size = 65536;
625 int subtitle_out_size, nb, i;
626 AVCodecContext *enc;
627 AVPacket pkt;
628
629 if (pts == AV_NOPTS_VALUE) {
630 fprintf(stderr, "Subtitle packets must have a pts\n");
631 return;
632 }
633
634 enc = ost->st->codec;
635
636 if (!subtitle_out) {
637 subtitle_out = av_malloc(subtitle_out_max_size);
638 }
639
640 /* Note: DVB subtitle need one packet to draw them and one other
641 packet to clear them */
642 /* XXX: signal it in the codec context ? */
643 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
644 nb = 2;
645 else
646 nb = 1;
647
648 for(i = 0; i < nb; i++) {
649 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
650 subtitle_out_max_size, sub);
651
652 av_init_packet(&pkt);
653 pkt.stream_index = ost->index;
654 pkt.data = subtitle_out;
655 pkt.size = subtitle_out_size;
656 pkt.pts = av_rescale_q(av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q) + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
657 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
658 /* XXX: the pts correction is handled here. Maybe handling
659 it in the codec would be better */
660 if (i == 0)
661 pkt.pts += 90 * sub->start_display_time;
662 else
663 pkt.pts += 90 * sub->end_display_time;
664 }
665 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
666 }
667 }
668
669 static int bit_buffer_size= 1024*256;
670 static uint8_t *bit_buffer= NULL;
671
672 static void do_video_out(AVFormatContext *s,
673 AVOutputStream *ost,
674 AVInputStream *ist,
675 AVFrame *in_picture,
676 int *frame_size)
677 {
678 int nb_frames, i, ret;
679 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
680 AVFrame picture_crop_temp, picture_pad_temp;
681 AVCodecContext *enc, *dec;
682
683 avcodec_get_frame_defaults(&picture_crop_temp);
684 avcodec_get_frame_defaults(&picture_pad_temp);
685
686 enc = ost->st->codec;
687 dec = ist->st->codec;
688
689 /* by default, we output a single frame */
690 nb_frames = 1;
691
692 *frame_size = 0;
693
694 if(video_sync_method){
695 double vdelta;
696 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
697 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
698 if (vdelta < -1.1)
699 nb_frames = 0;
700 else if (vdelta > 1.1)
701 nb_frames = lrintf(vdelta);
702 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);
703 if (nb_frames == 0){
704 ++nb_frames_drop;
705 if (verbose>2)
706 fprintf(stderr, "*** drop!\n");
707 }else if (nb_frames > 1) {
708 nb_frames_dup += nb_frames;
709 if (verbose>2)
710 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
711 }
712 }else
713 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
714
715 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
716 if (nb_frames <= 0)
717 return;
718
719 if (ost->video_crop) {
720 if (av_picture_crop((AVPicture *)&picture_crop_temp, (AVPicture *)in_picture, dec->pix_fmt, ost->topBand, ost->leftBand) < 0) {
721 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
722 return;
723 }
724 formatted_picture = &picture_crop_temp;
725 } else {
726 formatted_picture = in_picture;
727 }
728
729 final_picture = formatted_picture;
730 padding_src = formatted_picture;
731 resampling_dst = &ost->pict_tmp;
732 if (ost->video_pad) {
733 final_picture = &ost->pict_tmp;
734 if (ost->video_resample) {
735 if (av_picture_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, enc->pix_fmt, ost->padtop, ost->padleft) < 0) {
736 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
737 return;
738 }
739 resampling_dst = &picture_pad_temp;
740 }
741 }
742
743 if (ost->video_resample) {
744 padding_src = NULL;
745 final_picture = &ost->pict_tmp;
746 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
747 0, ost->resample_height, resampling_dst->data, resampling_dst->linesize);
748 }
749
750 if (ost->video_pad) {
751 av_picture_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
752 enc->height, enc->width, enc->pix_fmt,
753 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
754 }
755
756 /* duplicates frame if needed */
757 for(i=0;i<nb_frames;i++) {
758 AVPacket pkt;
759 av_init_packet(&pkt);
760 pkt.stream_index= ost->index;
761
762 if (s->oformat->flags & AVFMT_RAWPICTURE) {
763 /* raw pictures are written as AVPicture structure to
764 avoid any copies. We support temorarily the older
765 method. */
766 AVFrame* old_frame = enc->coded_frame;
767 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
768 pkt.data= (uint8_t *)final_picture;
769 pkt.size= sizeof(AVPicture);
770 if(dec->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
771 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
772 if(dec->coded_frame && dec->coded_frame->key_frame)
773 pkt.flags |= PKT_FLAG_KEY;
774
775 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
776 enc->coded_frame = old_frame;
777 } else {
778 AVFrame big_picture;
779
780 big_picture= *final_picture;
781 /* better than nothing: use input picture interlaced
782 settings */
783 big_picture.interlaced_frame = in_picture->interlaced_frame;
784 if(avctx_opts[CODEC_TYPE_VIDEO]->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
785 if(top_field_first == -1)
786 big_picture.top_field_first = in_picture->top_field_first;
787 else
788 big_picture.top_field_first = top_field_first;
789 }
790
791 /* handles sameq here. This is not correct because it may
792 not be a global option */
793 if (same_quality) {
794 big_picture.quality = ist->st->quality;
795 }else
796 big_picture.quality = ost->st->quality;
797 if(!me_threshold)
798 big_picture.pict_type = 0;
799 // big_picture.pts = AV_NOPTS_VALUE;
800 big_picture.pts= ost->sync_opts;
801 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
802 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
803 ret = avcodec_encode_video(enc,
804 bit_buffer, bit_buffer_size,
805 &big_picture);
806 if (ret == -1) {
807 fprintf(stderr, "Video encoding failed\n");
808 exit(1);
809 }
810 //enc->frame_number = enc->real_pict_num;
811 if(ret>0){
812 pkt.data= bit_buffer;
813 pkt.size= ret;
814 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
815 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
816 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
817 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
818 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
819
820 if(enc->coded_frame && enc->coded_frame->key_frame)
821 pkt.flags |= PKT_FLAG_KEY;
822 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
823 *frame_size = ret;
824 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
825 // enc->frame_number-1, enc->real_pict_num, ret,
826 // enc->pict_type);
827 /* if two pass, output log */
828 if (ost->logfile && enc->stats_out) {
829 fprintf(ost->logfile, "%s", enc->stats_out);
830 }
831 }
832 }
833 ost->sync_opts++;
834 ost->frame_number++;
835 }
836 }
837
838 static double psnr(double d){
839 if(d==0) return INFINITY;
840 return -10.0*log(d)/log(10.0);
841 }
842
843 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
844 int frame_size)
845 {
846 AVCodecContext *enc;
847 int frame_number;
848 int64_t ti;
849 double ti1, bitrate, avg_bitrate;
850
851 /* this is executed just the first time do_video_stats is called */
852 if (!fvstats) {
853 fvstats = fopen(vstats_filename, "w");
854 if (!fvstats) {
855 perror("fopen");
856 exit(1);
857 }
858 }
859
860 ti = INT64_MAX;
861 enc = ost->st->codec;
862 if (enc->codec_type == CODEC_TYPE_VIDEO) {
863 frame_number = ost->frame_number;
864 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
865 if (enc->flags&CODEC_FLAG_PSNR)
866 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
867
868 fprintf(fvstats,"f_size= %6d ", frame_size);
869 /* compute pts value */
870 ti1 = ost->sync_opts * av_q2d(enc->time_base);
871 if (ti1 < 0.01)
872 ti1 = 0.01;
873
874 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
875 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
876 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
877 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
878 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
879 }
880 }
881
882 static void print_report(AVFormatContext **output_files,
883 AVOutputStream **ost_table, int nb_ostreams,
884 int is_last_report)
885 {
886 char buf[1024];
887 AVOutputStream *ost;
888 AVFormatContext *oc, *os;
889 int64_t total_size;
890 AVCodecContext *enc;
891 int frame_number, vid, i;
892 double bitrate, ti1, pts;
893 static int64_t last_time = -1;
894 static int qp_histogram[52];
895
896 if (!is_last_report) {
897 int64_t cur_time;
898 /* display the report every 0.5 seconds */
899 cur_time = av_gettime();
900 if (last_time == -1) {
901 last_time = cur_time;
902 return;
903 }
904 if ((cur_time - last_time) < 500000)
905 return;
906 last_time = cur_time;
907 }
908
909
910 oc = output_files[0];
911
912 total_size = url_fsize(&oc->pb);
913 if(total_size<0) // FIXME improve url_fsize() so it works with non seekable output too
914 total_size= url_ftell(&oc->pb);
915
916 buf[0] = '\0';
917 ti1 = 1e10;
918 vid = 0;
919 for(i=0;i<nb_ostreams;i++) {
920 ost = ost_table[i];
921 os = output_files[ost->file_index];
922 enc = ost->st->codec;
923 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
924 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
925 enc->coded_frame->quality/(float)FF_QP2LAMBDA);
926 }
927 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
928 float t = (av_gettime()-timer_start) / 1000000.0;
929
930 frame_number = ost->frame_number;
931 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
932 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0,
933 enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
934 if(is_last_report)
935 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
936 if(qp_hist && enc->coded_frame){
937 int j;
938 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
939 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
940 qp_histogram[qp]++;
941 for(j=0; j<32; j++)
942 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
943 }
944 if (enc->flags&CODEC_FLAG_PSNR){
945 int j;
946 double error, error_sum=0;
947 double scale, scale_sum=0;
948 char type[3]= {'Y','U','V'};
949 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
950 for(j=0; j<3; j++){
951 if(is_last_report){
952 error= enc->error[j];
953 scale= enc->width*enc->height*255.0*255.0*frame_number;
954 }else{
955 error= enc->coded_frame->error[j];
956 scale= enc->width*enc->height*255.0*255.0;
957 }
958 if(j) scale/=4;
959 error_sum += error;
960 scale_sum += scale;
961 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
962 }
963 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
964 }
965 vid = 1;
966 }
967 /* compute min output value */
968 pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
969 if ((pts < ti1) && (pts > 0))
970 ti1 = pts;
971 }
972 if (ti1 < 0.01)
973 ti1 = 0.01;
974
975 if (verbose || is_last_report) {
976 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
977
978 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
979 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
980 (double)total_size / 1024, ti1, bitrate);
981
982 if (verbose > 1)
983 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
984 nb_frames_dup, nb_frames_drop);
985
986 if (verbose >= 0)
987 fprintf(stderr, "%s \r", buf);
988
989 fflush(stderr);
990 }
991
992 if (is_last_report && verbose >= 0){
993 int64_t raw= audio_size + video_size + extra_size;
994 fprintf(stderr, "\n");
995 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
996 video_size/1024.0,
997 audio_size/1024.0,
998 extra_size/1024.0,
999 100.0*(total_size - raw)/raw
1000 );
1001 }
1002 }
1003
1004 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1005 static int output_packet(AVInputStream *ist, int ist_index,
1006 AVOutputStream **ost_table, int nb_ostreams,
1007 const AVPacket *pkt)
1008 {
1009 AVFormatContext *os;
1010 AVOutputStream *ost;
1011 uint8_t *ptr;
1012 int len, ret, i;
1013 uint8_t *data_buf;
1014 int data_size, got_picture;
1015 AVFrame picture;
1016 void *buffer_to_free;
1017 static unsigned int samples_size= 0;
1018 static short *samples= NULL;
1019 AVSubtitle subtitle, *subtitle_to_free;
1020 int got_subtitle;
1021
1022 if(!pkt){
1023 ist->pts= ist->next_pts; // needed for last packet if vsync=0
1024 } else if (pkt->dts != AV_NOPTS_VALUE) { //FIXME seems redundant, as libavformat does this too
1025 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1026 } else {
1027 // assert(ist->pts == ist->next_pts);
1028 }
1029
1030 if (pkt == NULL) {
1031 /* EOF handling */
1032 ptr = NULL;
1033 len = 0;
1034 goto handle_eof;
1035 }
1036
1037 len = pkt->size;
1038 ptr = pkt->data;
1039 while (len > 0) {
1040 handle_eof:
1041 /* decode the packet if needed */
1042 data_buf = NULL; /* fail safe */
1043 data_size = 0;
1044 subtitle_to_free = NULL;
1045 if (ist->decoding_needed) {
1046 switch(ist->st->codec->codec_type) {
1047 case CODEC_TYPE_AUDIO:{
1048 if(pkt)
1049 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE));
1050 data_size= samples_size;
1051 /* XXX: could avoid copy if PCM 16 bits with same
1052 endianness as CPU */
1053 ret = avcodec_decode_audio2(ist->st->codec, samples, &data_size,
1054 ptr, len);
1055 if (ret < 0)
1056 goto fail_decode;
1057 ptr += ret;
1058 len -= ret;
1059 /* Some bug in mpeg audio decoder gives */
1060 /* data_size < 0, it seems they are overflows */
1061 if (data_size <= 0) {
1062 /* no audio frame */
1063 continue;
1064 }
1065 data_buf = (uint8_t *)samples;
1066 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1067 (ist->st->codec->sample_rate * ist->st->codec->channels);
1068 break;}
1069 case CODEC_TYPE_VIDEO:
1070 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1071 /* XXX: allocate picture correctly */
1072 avcodec_get_frame_defaults(&picture);
1073
1074 ret = avcodec_decode_video(ist->st->codec,
1075 &picture, &got_picture, ptr, len);
1076 ist->st->quality= picture.quality;
1077 if (ret < 0)
1078 goto fail_decode;
1079 if (!got_picture) {
1080 /* no picture yet */
1081 goto discard_packet;
1082 }
1083 if (ist->st->codec->time_base.num != 0) {
1084 ist->next_pts += ((int64_t)AV_TIME_BASE *
1085 ist->st->codec->time_base.num) /
1086 ist->st->codec->time_base.den;
1087 }
1088 len = 0;
1089 break;
1090 case CODEC_TYPE_SUBTITLE:
1091 ret = avcodec_decode_subtitle(ist->st->codec,
1092 &subtitle, &got_subtitle, ptr, len);
1093 if (ret < 0)
1094 goto fail_decode;
1095 if (!got_subtitle) {
1096 goto discard_packet;
1097 }
1098 subtitle_to_free = &subtitle;
1099 len = 0;
1100 break;
1101 default:
1102 goto fail_decode;
1103 }
1104 } else {
1105 switch(ist->st->codec->codec_type) {
1106 case CODEC_TYPE_AUDIO:
1107 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1108 (ist->st->codec->sample_rate * ist->st->codec->channels);
1109 break;
1110 case CODEC_TYPE_VIDEO:
1111 if (ist->st->codec->time_base.num != 0) {
1112 ist->next_pts += ((int64_t)AV_TIME_BASE *
1113 ist->st->codec->time_base.num) /
1114 ist->st->codec->time_base.den;
1115 }
1116 break;
1117 }
1118 data_buf = ptr;
1119 data_size = len;
1120 ret = len;
1121 len = 0;
1122 }
1123
1124 buffer_to_free = NULL;
1125 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1126 pre_process_video_frame(ist, (AVPicture *)&picture,
1127 &buffer_to_free);
1128 }
1129
1130 // preprocess audio (volume)
1131 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1132 if (audio_volume != 256) {
1133 short *volp;
1134 volp = samples;
1135 for(i=0;i<(data_size / sizeof(short));i++) {
1136 int v = ((*volp) * audio_volume + 128) >> 8;
1137 if (v < -32768) v = -32768;
1138 if (v > 32767) v = 32767;
1139 *volp++ = v;
1140 }
1141 }
1142 }
1143
1144 /* frame rate emulation */
1145 if (ist->st->codec->rate_emu) {
1146 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1147 int64_t now = av_gettime() - ist->start;
1148 if (pts > now)
1149 usleep(pts - now);
1150
1151 ist->frame++;
1152 }
1153
1154 #if 0
1155 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1156 is the one of the next displayed one */
1157 /* XXX: add mpeg4 too ? */
1158 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1159 if (ist->st->codec->pict_type != B_TYPE) {
1160 int64_t tmp;
1161 tmp = ist->last_ip_pts;
1162 ist->last_ip_pts = ist->frac_pts.val;
1163 ist->frac_pts.val = tmp;
1164 }
1165 }
1166 #endif
1167 /* if output time reached then transcode raw format,
1168 encode packets and output them */
1169 if (start_time == 0 || ist->pts >= start_time)
1170 for(i=0;i<nb_ostreams;i++) {
1171 int frame_size;
1172
1173 ost = ost_table[i];
1174 if (ost->source_index == ist_index) {
1175 os = output_files[ost->file_index];
1176
1177 #if 0
1178 printf("%d: got pts=%0.3f %0.3f\n", i,
1179 (double)pkt->pts / AV_TIME_BASE,
1180 ((double)ist->pts / AV_TIME_BASE) -
1181 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1182 #endif
1183 /* set the input output pts pairs */
1184 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1185
1186 if (ost->encoding_needed) {
1187 switch(ost->st->codec->codec_type) {
1188 case CODEC_TYPE_AUDIO:
1189 do_audio_out(os, ost, ist, data_buf, data_size);
1190 break;
1191 case CODEC_TYPE_VIDEO:
1192 do_video_out(os, ost, ist, &picture, &frame_size);
1193 video_size += frame_size;
1194 if (vstats_filename && frame_size)
1195 do_video_stats(os, ost, frame_size);
1196 break;
1197 case CODEC_TYPE_SUBTITLE:
1198 do_subtitle_out(os, ost, ist, &subtitle,
1199 pkt->pts);
1200 break;
1201 default:
1202 av_abort();
1203 }
1204 } else {
1205 AVFrame avframe; //FIXME/XXX remove this
1206 AVPacket opkt;
1207 av_init_packet(&opkt);
1208
1209 /* no reencoding needed : output the packet directly */
1210 /* force the input stream PTS */
1211
1212 avcodec_get_frame_defaults(&avframe);
1213 ost->st->codec->coded_frame= &avframe;
1214 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1215
1216 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1217 audio_size += data_size;
1218 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1219 video_size += data_size;
1220 ost->sync_opts++;
1221 }
1222
1223 opkt.stream_index= ost->index;
1224 if(pkt->pts != AV_NOPTS_VALUE)
1225 opkt.pts= av_rescale_q(av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q) + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
1226 else
1227 opkt.pts= AV_NOPTS_VALUE;
1228
1229 {
1230 int64_t dts;
1231 if (pkt->dts == AV_NOPTS_VALUE)
1232 dts = ist->next_pts;
1233 else
1234 dts= av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1235 opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
1236 }
1237 opkt.flags= pkt->flags;
1238
1239 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1240 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1241 opkt.destruct= av_destruct_packet;
1242
1243 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][pkt->stream_index]);
1244 ost->st->codec->frame_number++;
1245 ost->frame_number++;
1246 av_free_packet(&opkt);
1247 }
1248 }
1249 }
1250 av_free(buffer_to_free);
1251 /* XXX: allocate the subtitles in the codec ? */
1252 if (subtitle_to_free) {
1253 if (subtitle_to_free->rects != NULL) {
1254 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1255 av_free(subtitle_to_free->rects[i].bitmap);
1256 av_free(subtitle_to_free->rects[i].rgba_palette);
1257 }
1258 av_freep(&subtitle_to_free->rects);
1259 }
1260 subtitle_to_free->num_rects = 0;
1261 subtitle_to_free = NULL;
1262 }
1263 }
1264 discard_packet:
1265 if (pkt == NULL) {
1266 /* EOF handling */
1267
1268 for(i=0;i<nb_ostreams;i++) {
1269 ost = ost_table[i];
1270 if (ost->source_index == ist_index) {
1271 AVCodecContext *enc= ost->st->codec;
1272 os = output_files[ost->file_index];
1273
1274 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1275 continue;
1276 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1277 continue;
1278
1279 if (ost->encoding_needed) {
1280 for(;;) {
1281 AVPacket pkt;
1282 int fifo_bytes;
1283 av_init_packet(&pkt);
1284 pkt.stream_index= ost->index;
1285
1286 switch(ost->st->codec->codec_type) {
1287 case CODEC_TYPE_AUDIO:
1288 fifo_bytes = av_fifo_size(&ost->fifo);
1289 ret = 0;
1290 /* encode any samples remaining in fifo */
1291 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1292 int fs_tmp = enc->frame_size;
1293 enc->frame_size = fifo_bytes / (2 * enc->channels);
1294 if(av_fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes) == 0) {
1295 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1296 }
1297 enc->frame_size = fs_tmp;
1298 }
1299 if(ret <= 0) {
1300 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1301 }
1302 audio_size += ret;
1303 pkt.flags |= PKT_FLAG_KEY;
1304 break;
1305 case CODEC_TYPE_VIDEO:
1306 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1307 video_size += ret;
1308 if(enc->coded_frame && enc->coded_frame->key_frame)
1309 pkt.flags |= PKT_FLAG_KEY;
1310 if (ost->logfile && enc->stats_out) {
1311 fprintf(ost->logfile, "%s", enc->stats_out);
1312 }
1313 break;
1314 default:
1315 ret=-1;
1316 }
1317
1318 if(ret<=0)
1319 break;
1320 pkt.data= bit_buffer;
1321 pkt.size= ret;
1322 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1323 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1324 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1325 }
1326 }
1327 }
1328 }
1329 }
1330
1331 return 0;
1332 fail_decode:
1333 return -1;
1334 }
1335
1336
1337 /*
1338 * The following code is the main loop of the file converter
1339 */
1340 static int av_encode(AVFormatContext **output_files,
1341 int nb_output_files,
1342 AVFormatContext **input_files,
1343 int nb_input_files,
1344 AVStreamMap *stream_maps, int nb_stream_maps)
1345 {
1346 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1347 AVFormatContext *is, *os;
1348 AVCodecContext *codec, *icodec;
1349 AVOutputStream *ost, **ost_table = NULL;
1350 AVInputStream *ist, **ist_table = NULL;
1351 AVInputFile *file_table;
1352 int key;
1353
1354 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1355 if (!file_table)
1356 goto fail;
1357
1358 /* input stream init */
1359 j = 0;
1360 for(i=0;i<nb_input_files;i++) {
1361 is = input_files[i];
1362 file_table[i].ist_index = j;
1363 file_table[i].nb_streams = is->nb_streams;
1364 j += is->nb_streams;
1365 }
1366 nb_istreams = j;
1367
1368 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1369 if (!ist_table)
1370 goto fail;
1371
1372 for(i=0;i<nb_istreams;i++) {
1373 ist = av_mallocz(sizeof(AVInputStream));
1374 if (!ist)
1375 goto fail;
1376 ist_table[i] = ist;
1377 }
1378 j = 0;
1379 for(i=0;i<nb_input_files;i++) {
1380 is = input_files[i];
1381 for(k=0;k<is->nb_streams;k++) {
1382 ist = ist_table[j++];
1383 ist->st = is->streams[k];
1384 ist->file_index = i;
1385 ist->index = k;
1386 ist->discard = 1; /* the stream is discarded by default
1387 (changed later) */
1388
1389 if (ist->st->codec->rate_emu) {
1390 ist->start = av_gettime();
1391 ist->frame = 0;
1392 }
1393 }
1394 }
1395
1396 /* output stream init */
1397 nb_ostreams = 0;
1398 for(i=0;i<nb_output_files;i++) {
1399 os = output_files[i];
1400 if (!os->nb_streams) {
1401 fprintf(stderr, "Output file does not contain any stream\n");
1402 exit(1);
1403 }
1404 nb_ostreams += os->nb_streams;
1405 }
1406 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1407 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1408 exit(1);
1409 }
1410
1411 /* Sanity check the mapping args -- do the input files & streams exist? */
1412 for(i=0;i<nb_stream_maps;i++) {
1413 int fi = stream_maps[i].file_index;
1414 int si = stream_maps[i].stream_index;
1415
1416 if (fi < 0 || fi > nb_input_files - 1 ||
1417 si < 0 || si > file_table[fi].nb_streams - 1) {
1418 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1419 exit(1);
1420 }
1421 fi = stream_maps[i].sync_file_index;
1422 si = stream_maps[i].sync_stream_index;
1423 if (fi < 0 || fi > nb_input_files - 1 ||
1424 si < 0 || si > file_table[fi].nb_streams - 1) {
1425 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1426 exit(1);
1427 }
1428 }
1429
1430 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1431 if (!ost_table)
1432 goto fail;
1433 for(i=0;i<nb_ostreams;i++) {
1434 ost = av_mallocz(sizeof(AVOutputStream));
1435 if (!ost)
1436 goto fail;
1437 ost_table[i] = ost;
1438 }
1439
1440 n = 0;
1441 for(k=0;k<nb_output_files;k++) {
1442 os = output_files[k];
1443 for(i=0;i<os->nb_streams;i++) {
1444 int found;
1445 ost = ost_table[n++];
1446 ost->file_index = k;
1447 ost->index = i;
1448 ost->st = os->streams[i];
1449 if (nb_stream_maps > 0) {
1450 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1451 stream_maps[n-1].stream_index;
1452
1453 /* Sanity check that the stream types match */
1454 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1455 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1456 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1457 ost->file_index, ost->index);
1458 exit(1);
1459 }
1460
1461 } else {
1462 /* get corresponding input stream index : we select the first one with the right type */
1463 found = 0;
1464 for(j=0;j<nb_istreams;j++) {
1465 ist = ist_table[j];
1466 if (ist->discard &&
1467 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1468 ost->source_index = j;
1469 found = 1;
1470 break;
1471 }
1472 }
1473
1474 if (!found) {
1475 /* try again and reuse existing stream */
1476 for(j=0;j<nb_istreams;j++) {
1477 ist = ist_table[j];
1478 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1479 ost->source_index = j;
1480 found = 1;
1481 }
1482 }
1483 if (!found) {
1484 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1485 ost->file_index, ost->index);
1486 exit(1);
1487 }
1488 }
1489 }
1490 ist = ist_table[ost->source_index];
1491 ist->discard = 0;
1492 ost->sync_ist = (nb_stream_maps > 0) ?
1493 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1494 stream_maps[n-1].sync_stream_index] : ist;
1495 }
1496 }
1497
1498 /* for each output stream, we compute the right encoding parameters */
1499 for(i=0;i<nb_ostreams;i++) {
1500 ost = ost_table[i];
1501 ist = ist_table[ost->source_index];
1502
1503 codec = ost->st->codec;
1504 icodec = ist->st->codec;
1505
1506 if (ost->st->stream_copy) {
1507 /* if stream_copy is selected, no need to decode or encode */
1508 codec->codec_id = icodec->codec_id;
1509 codec->codec_type = icodec->codec_type;
1510 if(!codec->codec_tag) codec->codec_tag = icodec->codec_tag;
1511 codec->bit_rate = icodec->bit_rate;
1512 codec->extradata= icodec->extradata;
1513 codec->extradata_size= icodec->extradata_size;
1514 if(av_q2d(icodec->time_base) > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/1000)
1515 codec->time_base = icodec->time_base;
1516 else
1517 codec->time_base = ist->st->time_base;
1518 switch(codec->codec_type) {
1519 case CODEC_TYPE_AUDIO:
1520 codec->sample_rate = icodec->sample_rate;
1521 codec->channels = icodec->channels;
1522 codec->frame_size = icodec->frame_size;
1523 codec->block_align= icodec->block_align;
1524 break;
1525 case CODEC_TYPE_VIDEO:
1526 if(using_vhook) {
1527 fprintf(stderr,"-vcodec copy and -vhook are incompatible (frames are not decoded)\n");
1528 exit(1);
1529 }
1530 codec->pix_fmt = icodec->pix_fmt;
1531 codec->width = icodec->width;
1532 codec->height = icodec->height;
1533 codec->has_b_frames = icodec->has_b_frames;
1534 break;
1535 case CODEC_TYPE_SUBTITLE:
1536 break;
1537 default:
1538 av_abort();
1539 }
1540 } else {
1541 switch(codec->codec_type) {
1542 case CODEC_TYPE_AUDIO:
1543 if (av_fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1544 goto fail;
1545
1546 if (codec->channels == icodec->channels &&
1547 codec->sample_rate == icodec->sample_rate) {
1548 ost->audio_resample = 0;
1549 } else {
1550 if (codec->channels != icodec->channels &&
1551 (icodec->codec_id == CODEC_ID_AC3 ||
1552 icodec->codec_id == CODEC_ID_DTS)) {
1553 /* Special case for 5:1 AC3 and DTS input */
1554 /* and mono or stereo output */
1555 /* Request specific number of channels */
1556 icodec->channels = codec->channels;
1557 if (codec->sample_rate == icodec->sample_rate)
1558 ost->audio_resample = 0;
1559 else {
1560 ost->audio_resample = 1;
1561 }
1562 } else {
1563 ost->audio_resample = 1;
1564 }
1565 }
1566 if(audio_sync_method>1)
1567 ost->audio_resample = 1;
1568
1569 if(ost->audio_resample){
1570 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1571 codec->sample_rate, icodec->sample_rate);
1572 if(!ost->resample){
1573 printf("Can't resample. Aborting.\n");
1574 av_abort();
1575 }
1576 }
1577 ist->decoding_needed = 1;
1578 ost->encoding_needed = 1;
1579 break;
1580 case CODEC_TYPE_VIDEO:
1581 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1582 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1583 ost->video_resample = ((codec->width != icodec->width -
1584 (frame_leftBand + frame_rightBand) +
1585 (frame_padleft + frame_padright)) ||
1586 (codec->height != icodec->height -
1587 (frame_topBand + frame_bottomBand) +
1588 (frame_padtop + frame_padbottom)) ||
1589 (codec->pix_fmt != icodec->pix_fmt));
1590 if (ost->video_crop) {
1591 ost->topBand = frame_topBand;
1592 ost->leftBand = frame_leftBand;
1593 }
1594 if (ost->video_pad) {
1595 ost->padtop = frame_padtop;
1596 ost->padleft = frame_padleft;
1597 ost->padbottom = frame_padbottom;
1598 ost->padright = frame_padright;
1599 if (!ost->video_resample) {
1600 avcodec_get_frame_defaults(&ost->pict_tmp);
1601 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1602 codec->width, codec->height ) )
1603 goto fail;
1604 }
1605 }
1606 if (ost->video_resample) {
1607 avcodec_get_frame_defaults(&ost->pict_tmp);
1608 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1609 codec->width, codec->height ) ) {
1610 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1611 exit(1);
1612 }
1613 if (ENABLE_SWSCALER)
1614 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1615 ost->img_resample_ctx = sws_getContext(
1616 icodec->width - (frame_leftBand + frame_rightBand),
1617 icodec->height - (frame_topBand + frame_bottomBand),
1618 icodec->pix_fmt,
1619 codec->width - (frame_padleft + frame_padright),
1620 codec->height - (frame_padtop + frame_padbottom),
1621 codec->pix_fmt,
1622 sws_flags, NULL, NULL, NULL);
1623 if (ost->img_resample_ctx == NULL) {
1624 fprintf(stderr, "Cannot get resampling context\n");
1625 exit(1);
1626 }
1627 ost->resample_height = icodec->height - (frame_topBand + frame_bottomBand);
1628 }
1629 ost->encoding_needed = 1;
1630 ist->decoding_needed = 1;
1631 break;
1632 case CODEC_TYPE_SUBTITLE:
1633 ost->encoding_needed = 1;
1634 ist->decoding_needed = 1;
1635 break;
1636 default:
1637 av_abort();
1638 break;
1639 }
1640 /* two pass mode */
1641 if (ost->encoding_needed &&
1642 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1643 char logfilename[1024];
1644 FILE *f;
1645 int size;
1646 char *logbuffer;
1647
1648 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1649 pass_logfilename ?
1650 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1651 if (codec->flags & CODEC_FLAG_PASS1) {
1652 f = fopen(logfilename, "w");
1653 if (!f) {
1654 perror(logfilename);
1655 exit(1);
1656 }
1657 ost->logfile = f;
1658 } else {
1659 /* read the log file */
1660 f = fopen(logfilename, "r");
1661 if (!f) {
1662 perror(logfilename);
1663 exit(1);
1664 }
1665 fseek(f, 0, SEEK_END);
1666 size = ftell(f);
1667 fseek(f, 0, SEEK_SET);
1668 logbuffer = av_malloc(size + 1);
1669 if (!logbuffer) {
1670 fprintf(stderr, "Could not allocate log buffer\n");
1671 exit(1);
1672 }
1673 size = fread(logbuffer, 1, size, f);
1674 fclose(f);
1675 logbuffer[size] = '\0';
1676 codec->stats_in = logbuffer;
1677 }
1678 }
1679 }
1680 if(codec->codec_type == CODEC_TYPE_VIDEO){
1681 int size= codec->width * codec->height;
1682 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1683 }
1684 }
1685
1686 if (!bit_buffer)
1687 bit_buffer = av_malloc(bit_buffer_size);
1688 if (!bit_buffer)
1689 goto fail;
1690
1691 /* dump the file output parameters - cannot be done before in case
1692 of stream copy */
1693 for(i=0;i<nb_output_files;i++) {
1694 dump_format(output_files[i], i, output_files[i]->filename, 1);
1695 }
1696
1697 /* dump the stream mapping */
1698 if (verbose >= 0) {
1699 fprintf(stderr, "Stream mapping:\n");
1700 for(i=0;i<nb_ostreams;i++) {
1701 ost = ost_table[i];
1702 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1703 ist_table[ost->source_index]->file_index,
1704 ist_table[ost->source_index]->index,
1705 ost->file_index,
1706 ost->index);
1707 if (ost->sync_ist != ist_table[ost->source_index])
1708 fprintf(stderr, " [sync #%d.%d]",
1709 ost->sync_ist->file_index,
1710 ost->sync_ist->index);
1711 fprintf(stderr, "\n");
1712 }
1713 }
1714
1715 /* open each encoder */
1716 for(i=0;i<nb_ostreams;i++) {
1717 ost = ost_table[i];
1718 if (ost->encoding_needed) {
1719 AVCodec *codec;
1720 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1721 if (!codec) {
1722 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1723 ost->file_index, ost->index);
1724 exit(1);
1725 }
1726 if (avcodec_open(ost->st->codec, codec) < 0) {
1727 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1728 ost->file_index, ost->index);
1729 exit(1);
1730 }
1731 extra_size += ost->st->codec->extradata_size;
1732 }
1733 }
1734
1735 /* open each decoder */
1736 for(i=0;i<nb_istreams;i++) {
1737 ist = ist_table[i];
1738 if (ist->decoding_needed) {
1739 AVCodec *codec;
1740 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1741 if (!codec) {
1742 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1743 ist->st->codec->codec_id, ist->file_index, ist->index);
1744 exit(1);
1745 }
1746 if (avcodec_open(ist->st->codec, codec) < 0) {
1747 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1748 ist->file_index, ist->index);
1749 exit(1);
1750 }
1751 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1752 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1753 }
1754 }
1755
1756 /* init pts */
1757 for(i=0;i<nb_istreams;i++) {
1758 ist = ist_table[i];
1759 is = input_files[ist->file_index];
1760 ist->pts = 0;
1761 ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1762 if(ist->st->start_time == AV_NOPTS_VALUE)
1763 ist->next_pts=0;
1764 if(input_files_ts_offset[ist->file_index])
1765 ist->next_pts= AV_NOPTS_VALUE;
1766 ist->is_start = 1;
1767 }
1768
1769 /* set meta data information from input file if required */
1770 for (i=0;i<nb_meta_data_maps;i++) {
1771 AVFormatContext *out_file;
1772 AVFormatContext *in_file;
1773
1774 int out_file_index = meta_data_maps[i].out_file;
1775 int in_file_index = meta_data_maps[i].in_file;
1776 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1777 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1778 ret = AVERROR(EINVAL);
1779 goto fail;
1780 }
1781 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1782 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1783 ret = AVERROR(EINVAL);
1784 goto fail;
1785 }
1786
1787 out_file = output_files[out_file_index];
1788 in_file = input_files[in_file_index];
1789
1790 strcpy(out_file->title, in_file->title);
1791 strcpy(out_file->author, in_file->author);
1792 strcpy(out_file->copyright, in_file->copyright);
1793 strcpy(out_file->comment, in_file->comment);
1794 strcpy(out_file->album, in_file->album);
1795 out_file->year = in_file->year;
1796 out_file->track = in_file->track;
1797 strcpy(out_file->genre, in_file->genre);
1798 }
1799
1800 /* open files and write file headers */
1801 for(i=0;i<nb_output_files;i++) {
1802 os = output_files[i];
1803 if (av_write_header(os) < 0) {
1804 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1805 ret = AVERROR(EINVAL);
1806 goto fail;
1807 }
1808 }
1809
1810 if ( !using_stdin && verbose >= 0) {
1811 fprintf(stderr, "Press [q] to stop encoding\n");
1812 url_set_interrupt_cb(decode_interrupt_cb);
1813 }
1814 term_init();
1815
1816 key = -1;
1817 timer_start = av_gettime();
1818
1819 for(; received_sigterm == 0;) {
1820 int file_index, ist_index;
1821 AVPacket pkt;
1822 double ipts_min;
1823 double opts_min;
1824
1825 redo:
1826 ipts_min= 1e100;
1827 opts_min= 1e100;
1828 /* if 'q' pressed, exits */
1829 if (!using_stdin) {
1830 if (q_pressed)
1831 break;
1832 /* read_key() returns 0 on EOF */
1833 key = read_key();
1834 if (key == 'q')
1835 break;
1836 }
1837
1838 /* select the stream that we must read now by looking at the
1839 smallest output pts */
1840 file_index = -1;
1841 for(i=0;i<nb_ostreams;i++) {
1842 double ipts, opts;
1843 ost = ost_table[i];
1844 os = output_files[ost->file_index];
1845 ist = ist_table[ost->source_index];
1846 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1847 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
1848 else
1849 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
1850 ipts = (double)ist->pts;
1851 if (!file_table[ist->file_index].eof_reached){
1852 if(ipts < ipts_min) {
1853 ipts_min = ipts;
1854 if(input_sync ) file_index = ist->file_index;
1855 }
1856 if(opts < opts_min) {
1857 opts_min = opts;
1858 if(!input_sync) file_index = ist->file_index;
1859 }
1860 }
1861 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
1862 file_index= -1;
1863 break;
1864 }
1865 }
1866 /* if none, if is finished */
1867 if (file_index < 0) {
1868 break;
1869 }
1870
1871 /* finish if recording time exhausted */
1872 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
1873 break;
1874
1875 /* finish if limit size exhausted */
1876 if (limit_filesize != 0 && limit_filesize < url_ftell(&output_files[0]->pb))
1877 break;
1878
1879 /* read a frame from it and output it in the fifo */
1880 is = input_files[file_index];
1881 if (av_read_frame(is, &pkt) < 0) {
1882 file_table[file_index].eof_reached = 1;
1883 if (opt_shortest) break; else continue; //
1884 }
1885
1886 if (do_pkt_dump) {
1887 av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
1888 }
1889 /* the following test is needed in case new streams appear
1890 dynamically in stream : we ignore them */
1891 if (pkt.stream_index >= file_table[file_index].nb_streams)
1892 goto discard_packet;
1893 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1894 ist = ist_table[ist_index];
1895 if (ist->discard)
1896 goto discard_packet;
1897
1898 // 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);
1899 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
1900 int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
1901 if(FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE && !copy_ts){
1902 input_files_ts_offset[ist->file_index]-= delta;
1903 if (verbose > 2)
1904 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
1905 for(i=0; i<file_table[file_index].nb_streams; i++){
1906 int index= file_table[file_index].ist_index + i;
1907 ist_table[index]->next_pts += delta;
1908 ist_table[index]->is_start=1;
1909 }
1910 }
1911 }
1912
1913 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1914 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1915
1916 if (verbose >= 0)
1917 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1918 ist->file_index, ist->index);
1919
1920 av_free_packet(&pkt);
1921 goto redo;
1922 }
1923
1924 discard_packet:
1925 av_free_packet(&pkt);
1926
1927 /* dump report by using the output first video and audio streams */
1928 print_report(output_files, ost_table, nb_ostreams, 0);
1929 }
1930
1931 /* at the end of stream, we must flush the decoder buffers */
1932 for(i=0;i<nb_istreams;i++) {
1933 ist = ist_table[i];
1934 if (ist->decoding_needed) {
1935 output_packet(ist, i, ost_table, nb_ostreams, NULL);
1936 }
1937 }
1938
1939 term_exit();
1940
1941 /* write the trailer if needed and close file */
1942 for(i=0;i<nb_output_files;i++) {
1943 os = output_files[i];
1944 av_write_trailer(os);
1945 }
1946
1947 /* dump report by using the first video and audio streams */
1948 print_report(output_files, ost_table, nb_ostreams, 1);
1949
1950 /* close each encoder */
1951 for(i=0;i<nb_ostreams;i++) {
1952 ost = ost_table[i];
1953 if (ost->encoding_needed) {
1954 av_freep(&ost->st->codec->stats_in);
1955 avcodec_close(ost->st->codec);
1956 }
1957 }
1958
1959 /* close each decoder */
1960 for(i=0;i<nb_istreams;i++) {
1961 ist = ist_table[i];
1962 if (ist->decoding_needed) {
1963 avcodec_close(ist->st->codec);
1964 }
1965 }
1966
1967 /* finished ! */
1968
1969 ret = 0;
1970 fail1:
1971 av_freep(&bit_buffer);
1972 av_free(file_table);
1973
1974 if (ist_table) {
1975 for(i=0;i<nb_istreams;i++) {
1976 ist = ist_table[i];
1977 av_free(ist);
1978 }
1979 av_free(ist_table);
1980 }
1981 if (ost_table) {
1982 for(i=0;i<nb_ostreams;i++) {
1983 ost = ost_table[i];
1984 if (ost) {
1985 if (ost->logfile) {
1986 fclose(ost->logfile);
1987 ost->logfile = NULL;
1988 }
1989 av_fifo_free(&ost->fifo); /* works even if fifo is not
1990 initialized but set to zero */
1991 av_free(ost->pict_tmp.data[0]);
1992 if (ost->video_resample)
1993 sws_freeContext(ost->img_resample_ctx);
1994 if (ost->audio_resample)
1995 audio_resample_close(ost->resample);
1996 av_free(ost);
1997 }
1998 }
1999 av_free(ost_table);
2000 }
2001 return ret;
2002 fail:
2003 ret = AVERROR(ENOMEM);
2004 goto fail1;
2005 }
2006
2007 #if 0
2008 int file_read(const char *filename)
2009 {
2010 URLContext *h;
2011 unsigned char buffer[1024];
2012 int len, i;
2013
2014 if (url_open(&h, filename, O_RDONLY) < 0) {
2015 printf("could not open '%s'\n", filename);
2016 return -1;
2017 }
2018 for(;;) {
2019 len = url_read(h, buffer, sizeof(buffer));
2020 if (len <= 0)
2021 break;
2022 for(i=0;i<len;i++) putchar(buffer[i]);
2023 }
2024 url_close(h);
2025 return 0;
2026 }
2027 #endif
2028
2029 static void opt_format(const char *arg)
2030 {
2031 /* compatibility stuff for pgmyuv */
2032 if (!strcmp(arg, "pgmyuv")) {
2033 pgmyuv_compatibility_hack=1;
2034 // opt_image_format(arg);
2035 arg = "image2";
2036 fprintf(stderr, "pgmyuv format is deprecated, use image2\n");
2037 }
2038
2039 file_iformat = av_find_input_format(arg);
2040 file_oformat = guess_format(arg, NULL, NULL);
2041 if (!file_iformat && !file_oformat) {
2042 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2043 exit(1);
2044 }
2045 }
2046
2047 static void opt_video_rc_eq(char *arg)
2048 {
2049 video_rc_eq = arg;
2050 }
2051
2052 static void opt_video_rc_override_string(char *arg)
2053 {
2054 video_rc_override_string = arg;
2055 }
2056
2057 static void opt_me_threshold(const char *arg)
2058 {
2059 me_threshold = atoi(arg);
2060 }
2061
2062 static void opt_verbose(const char *arg)
2063 {
2064 verbose = atoi(arg);
2065 av_log_level = atoi(arg);
2066 }
2067
2068 static void opt_frame_rate(const char *arg)
2069 {
2070 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
2071 fprintf(stderr, "Incorrect frame rate\n");
2072 exit(1);
2073 }
2074 }
2075
2076 static void opt_frame_crop_top(const char *arg)
2077 {
2078 frame_topBand = atoi(arg);
2079 if (frame_topBand < 0) {
2080 fprintf(stderr, "Incorrect top crop size\n");
2081 exit(1);
2082 }
2083 if ((frame_topBand % 2) != 0) {
2084 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2085 exit(1);
2086 }
2087 if ((frame_topBand) >= frame_height){
2088 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2089 exit(1);
2090 }
2091 frame_height -= frame_topBand;
2092 }
2093
2094 static void opt_frame_crop_bottom(const char *arg)
2095 {
2096 frame_bottomBand = atoi(arg);
2097 if (frame_bottomBand < 0) {
2098 fprintf(stderr, "Incorrect bottom crop size\n");
2099 exit(1);
2100 }
2101 if ((frame_bottomBand % 2) != 0) {
2102 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2103 exit(1);
2104 }
2105 if ((frame_bottomBand) >= frame_height){
2106 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2107 exit(1);
2108 }
2109 frame_height -= frame_bottomBand;
2110 }
2111
2112 static void opt_frame_crop_left(const char *arg)
2113 {
2114 frame_leftBand = atoi(arg);
2115 if (frame_leftBand < 0) {
2116 fprintf(stderr, "Incorrect left crop size\n");
2117 exit(1);
2118 }
2119 if ((frame_leftBand % 2) != 0) {
2120 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2121 exit(1);
2122 }
2123 if ((frame_leftBand) >= frame_width){
2124 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2125 exit(1);
2126 }
2127 frame_width -= frame_leftBand;
2128 }
2129
2130 static void opt_frame_crop_right(const char *arg)
2131 {
2132 frame_rightBand = atoi(arg);
2133 if (frame_rightBand < 0) {
2134 fprintf(stderr, "Incorrect right crop size\n");
2135 exit(1);
2136 }
2137 if ((frame_rightBand % 2) != 0) {
2138 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2139 exit(1);
2140 }
2141 if ((frame_rightBand) >= frame_width){
2142 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2143 exit(1);
2144 }
2145 frame_width -= frame_rightBand;
2146 }
2147
2148 static void opt_frame_size(const char *arg)
2149 {
2150 if (av_parse_video_frame_size(&frame_width, &frame_height, arg) < 0) {
2151 fprintf(stderr, "Incorrect frame size\n");
2152 exit(1);
2153 }
2154 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2155 fprintf(stderr, "Frame size must be a multiple of 2\n");
2156 exit(1);
2157 }
2158 }
2159
2160
2161 #define SCALEBITS 10
2162 #define ONE_HALF (1 << (SCALEBITS - 1))
2163 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2164
2165 #define RGB_TO_Y(r, g, b) \
2166 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2167 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2168
2169 #define RGB_TO_U(r1, g1, b1, shift)\
2170 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2171 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2172
2173 #define RGB_TO_V(r1, g1, b1, shift)\
2174 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2175 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2176
2177 static void opt_pad_color(const char *arg) {
2178 /* Input is expected to be six hex digits similar to
2179 how colors are expressed in html tags (but without the #) */
2180 int rgb = strtol(arg, NULL, 16);
2181 int r,g,b;
2182
2183 r = (rgb >> 16);
2184 g = ((rgb >> 8) & 255);
2185 b = (rgb & 255);
2186
2187 padcolor[0] = RGB_TO_Y(r,g,b);
2188 padcolor[1] = RGB_TO_U(r,g,b,0);
2189 padcolor[2] = RGB_TO_V(r,g,b,0);
2190 }
2191
2192 static void opt_frame_pad_top(const char *arg)
2193 {
2194 frame_padtop = atoi(arg);
2195 if (frame_padtop < 0) {
2196 fprintf(stderr, "Incorrect top pad size\n");
2197 exit(1);
2198 }
2199 if ((frame_padtop % 2) != 0) {
2200 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2201 exit(1);
2202 }
2203 }
2204
2205 static void opt_frame_pad_bottom(const char *arg)
2206 {
2207 frame_padbottom = atoi(arg);
2208 if (frame_padbottom < 0) {
2209 fprintf(stderr, "Incorrect bottom pad size\n");
2210 exit(1);
2211 }
2212 if ((frame_padbottom % 2) != 0) {
2213 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2214 exit(1);
2215 }
2216 }
2217
2218
2219 static void opt_frame_pad_left(const char *arg)
2220 {
2221 frame_padleft = atoi(arg);
2222 if (frame_padleft < 0) {
2223 fprintf(stderr, "Incorrect left pad size\n");
2224 exit(1);
2225 }
2226 if ((frame_padleft % 2) != 0) {
2227 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2228 exit(1);
2229 }
2230 }
2231
2232
2233 static void opt_frame_pad_right(const char *arg)
2234 {
2235 frame_padright = atoi(arg);
2236 if (frame_padright < 0) {
2237 fprintf(stderr, "Incorrect right pad size\n");
2238 exit(1);
2239 }
2240 if ((frame_padright % 2) != 0) {
2241 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2242 exit(1);
2243 }
2244 }
2245
2246 void list_pix_fmts(void)
2247 {
2248 int i;
2249 char pix_fmt_str[128];
2250 for (i=-1; i < PIX_FMT_NB; i++) {
2251 avcodec_pix_fmt_string (pix_fmt_str, sizeof(pix_fmt_str), i);
2252 fprintf(stdout, "%s\n", pix_fmt_str);
2253 }
2254 }
2255
2256 static void opt_frame_pix_fmt(const char *arg)
2257 {
2258 if (strcmp(arg, "list"))
2259 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2260 else {
2261 list_pix_fmts();
2262 exit(0);
2263 }
2264 }
2265
2266 static void opt_frame_aspect_ratio(const char *arg)
2267 {
2268 int x = 0, y = 0;
2269 double ar = 0;
2270 const char *p;
2271
2272 p = strchr(arg, ':');
2273 if (p) {
2274 x = strtol(arg, (char **)&arg, 10);
2275 if (arg == p)
2276 y = strtol(arg+1, (char **)&arg, 10);
2277 if (x > 0 && y > 0)
2278 ar = (double)x / (double)y;
2279 } else
2280 ar = strtod(arg, (char **)&arg);
2281
2282 if (!ar) {
2283 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2284 exit(1);
2285 }
2286 frame_aspect_ratio = ar;
2287 }
2288
2289 static void opt_qscale(const char *arg)
2290 {
2291 video_qscale = atof(arg);
2292 if (video_qscale <= 0 ||
2293 video_qscale > 255) {
2294 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2295 exit(1);
2296 }
2297 }
2298
2299 static void opt_qdiff(const char *arg)
2300 {
2301 video_qdiff = atoi(arg);
2302 if (video_qdiff < 0 ||
2303 video_qdiff > 31) {
2304 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2305 exit(1);
2306 }
2307 }
2308
2309 static void opt_strict(const char *arg)
2310 {
2311 strict= atoi(arg);
2312 }
2313
2314 static void opt_top_field_first(const char *arg)
2315 {
2316 top_field_first= atoi(arg);
2317 }
2318
2319 static void opt_thread_count(const char *arg)
2320 {
2321 thread_count= atoi(arg);
2322 #if !defined(HAVE_THREADS)
2323 if (verbose >= 0)
2324 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2325 #endif
2326 }
2327
2328 static void opt_audio_rate(const char *arg)
2329 {
2330 audio_sample_rate = atoi(arg);
2331 }
2332
2333 static void opt_audio_channels(const char *arg)
2334 {
2335 audio_channels = atoi(arg);
2336 }
2337
2338 static void opt_video_channel(const char *arg)
2339 {
2340 video_channel = strtol(arg, NULL, 0);
2341 }
2342
2343 static void opt_video_standard(const char *arg)
2344 {
2345 video_standard = av_strdup(arg);
2346 }
2347
2348 static void opt_codec(int *pstream_copy, int *pcodec_id,
2349 int codec_type, const char *arg)
2350 {
2351 AVCodec *p;
2352
2353 if (!strcmp(arg, "copy")) {
2354 *pstream_copy = 1;
2355 } else {
2356 p = first_avcodec;
2357 while (p) {
2358 if (!strcmp(p->name, arg) && p->type == codec_type)
2359 break;
2360 p = p->next;
2361 }
2362 if (p == NULL) {
2363 fprintf(stderr, "Unknown codec '%s'\n", arg);
2364 exit(1);
2365 } else {
2366 *pcodec_id = p->id;
2367 }
2368 }
2369 }
2370
2371 static void opt_audio_codec(const char *arg)
2372 {
2373 opt_codec(&audio_stream_copy, &audio_codec_id, CODEC_TYPE_AUDIO, arg);
2374 }
2375
2376 static void opt_audio_tag(const char *arg)
2377 {
2378 char *tail;
2379 audio_codec_tag= strtol(arg, &tail, 0);
2380
2381 if(!tail || *tail)
2382 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2383 }
2384
2385 static void opt_video_tag(const char *arg)
2386 {
2387 char *tail;
2388 video_codec_tag= strtol(arg, &tail, 0);
2389
2390 if(!tail || *tail)
2391 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2392 }
2393
2394 static void add_frame_hooker(const char *arg)
2395 {
2396 int argc = 0;
2397 char *argv[64];
2398 int i;
2399 char *args = av_strdup(arg);
2400
2401 using_vhook = 1;
2402
2403 argv[0] = strtok(args, " ");
2404 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2405 }
2406
2407 i = frame_hook_add(argc, argv);
2408
2409 if (i != 0) {
2410 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2411 exit(1);
2412 }
2413 }
2414
2415 const char *motion_str[] = {
2416 "zero",
2417 "full",
2418 "log",
2419 "phods",
2420 "epzs",
2421 "x1",
2422 "hex",
2423 "umh",
2424 "iter",
2425 NULL,
2426 };
2427
2428 static void opt_motion_estimation(const char *arg)
2429 {
2430 const char **p;
2431 p = motion_str;
2432 for(;;) {
2433 if (!*p) {
2434 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2435 exit(1);
2436 }
2437 if (!strcmp(*p, arg))
2438 break;
2439 p++;
2440 }
2441 me_method = (p - motion_str) + 1;
2442 }
2443
2444 static void opt_video_codec(const char *arg)
2445 {
2446 opt_codec(&video_stream_copy, &video_codec_id, CODEC_TYPE_VIDEO, arg);
2447 }
2448
2449 static void opt_subtitle_codec(const char *arg)
2450 {
2451 opt_codec(&subtitle_stream_copy, &subtitle_codec_id, CODEC_TYPE_SUBTITLE, arg);
2452 }
2453
2454 static void opt_map(const char *arg)
2455 {
2456 AVStreamMap *m;
2457 const char *p;
2458
2459 p = arg;
2460 m = &stream_maps[nb_stream_maps++];
2461
2462 m->file_index = strtol(arg, (char **)&p, 0);
2463 if (*p)
2464 p++;
2465
2466 m->stream_index = strtol(p, (char **)&p, 0);
2467 if (*p) {
2468 p++;
2469 m->sync_file_index = strtol(p, (char **)&p, 0);
2470 if (*p)
2471 p++;
2472 m->sync_stream_index = strtol(p, (char **)&p, 0);
2473 } else {
2474 m->sync_file_index = m->file_index;
2475 m->sync_stream_index = m->stream_index;
2476 }
2477 }
2478
2479 static void opt_map_meta_data(const char *arg)
2480 {
2481 AVMetaDataMap *m;
2482 const char *p;
2483
2484 p = arg;
2485 m = &meta_data_maps[nb_meta_data_maps++];
2486
2487 m->out_file = strtol(arg, (char **)&p, 0);
2488 if (*p)
2489 p++;
2490
2491 m->in_file = strtol(p, (char **)&p, 0);
2492 }
2493
2494 static void opt_recording_time(const char *arg)
2495 {
2496 recording_time = parse_date(arg, 1);
2497 }
2498
2499 static void opt_start_time(const char *arg)
2500 {
2501 start_time = parse_date(arg, 1);
2502 }
2503
2504 static void opt_rec_timestamp(const char *arg)
2505 {
2506 rec_timestamp = parse_date(arg, 0) / 1000000;
2507 }
2508
2509 static void opt_input_ts_offset(const char *arg)
2510 {
2511 input_ts_offset = parse_date(arg, 1);
2512 }
2513
2514 static void opt_input_file(const char *filename)
2515 {
2516 AVFormatContext *ic;
2517 AVFormatParameters params, *ap = &params;
2518 int err, i, ret, rfps, rfps_base;
2519 int64_t timestamp;
2520
2521 if (!strcmp(filename, "-"))
2522 filename = "pipe:";
2523
2524 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2525 !strcmp( filename, "/dev/stdin" );
2526
2527 /* get default parameters from command line */
2528 ic = av_alloc_format_context();
2529
2530 memset(ap, 0, sizeof(*ap));
2531 ap->prealloced_context = 1;
2532 ap->sample_rate = audio_sample_rate;
2533 ap->channels = audio_channels;
2534 ap->time_base.den = frame_rate.num;
2535 ap->time_base.num = frame_rate.den;
2536 ap->width = frame_width + frame_padleft + frame_padright;
2537 ap->height = frame_height + frame_padtop + frame_padbottom;
2538 ap->pix_fmt = frame_pix_fmt;
2539 ap->channel = video_channel;
2540 ap->standard = video_standard;
2541 ap->video_codec_id = video_codec_id;
2542 ap->audio_codec_id = audio_codec_id;
2543 if(pgmyuv_compatibility_hack)
2544 ap->video_codec_id= CODEC_ID_PGMYUV;
2545
2546 for(i=0; i<opt_name_count; i++){
2547 const AVOption *opt;
2548 double d= av_get_double(avformat_opts, opt_names[i], &opt);
2549 if(d==d && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2550 av_set_double(ic, opt_names[i], d);
2551 }
2552 /* open the input file with generic libav function */
2553 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2554 if (err < 0) {
2555 print_error(filename, err);
2556 exit(1);
2557 }
2558
2559 ic->loop_input = loop_input;
2560
2561 /* If not enough info to get the stream parameters, we decode the
2562 first frames to get it. (used in mpeg case for example) */
2563 ret = av_find_stream_info(ic);
2564 if (ret < 0 && verbose >= 0) {
2565 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2566 exit(1);
2567 }
2568
2569 timestamp = start_time;
2570 /* add the stream start time */
2571 if (ic->start_time != AV_NOPTS_VALUE)
2572 timestamp += ic->start_time;
2573
2574 /* if seeking requested, we execute it */
2575 if (start_time != 0) {
2576 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2577 if (ret < 0) {
2578 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2579 filename, (double)timestamp / AV_TIME_BASE);
2580 }
2581 /* reset seek info */
2582 start_time = 0;
2583 }
2584
2585 /* update the current parameters so that they match the one of the input stream */
2586 for(i=0;i<ic->nb_streams;i++) {
2587 int j;
2588 AVCodecContext *enc = ic->streams[i]->codec;
2589 if(thread_count>1)
2590 avcodec_thread_init(enc, thread_count);
2591 enc->thread_count= thread_count;
2592 switch(enc->codec_type) {
2593 case CODEC_TYPE_AUDIO:
2594 for(j=0; j<opt_name_count; j++){
2595 const AVOption *opt;
2596 double d= av_get_double(avctx_opts[CODEC_TYPE_AUDIO], opt_names[j], &opt);
2597 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2598 av_set_double(enc, opt_names[j], d);
2599 }
2600 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2601 audio_channels = enc->channels;
2602 audio_sample_rate = enc->sample_rate;
2603 if(audio_disable)
2604 ic->streams[i]->discard= AVDISCARD_ALL;
2605 break;
2606 case CODEC_TYPE_VIDEO:
2607 for(j=0; j<opt_name_count; j++){
2608 const AVOption *opt;
2609 double d= av_get_double(avctx_opts[CODEC_TYPE_VIDEO], opt_names[j], &opt);
2610 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2611 av_set_double(enc, opt_names[j], d);
2612 }
2613 frame_height = enc->height;
2614 frame_width = enc->width;
2615 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2616 frame_pix_fmt = enc->pix_fmt;
2617 rfps = ic->streams[i]->r_frame_rate.num;
2618 rfps_base = ic->streams[i]->r_frame_rate.den;
2619 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2620 if(me_threshold)
2621 enc->debug |= FF_DEBUG_MV;
2622
2623 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2624
2625 if (verbose >= 0)
2626 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2627 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2628
2629 (float)rfps / rfps_base, rfps, rfps_base);
2630 }
2631 /* update the current frame rate to match the stream frame rate */
2632 frame_rate.num = rfps;
2633 frame_rate.den = rfps_base;
2634
2635 enc->rate_emu = rate_emu;
2636 if(video_disable)
2637 ic->streams[i]->discard= AVDISCARD_ALL;
2638 else if(video_discard)
2639 ic->streams[i]->discard= video_discard;
2640 break;
2641 case CODEC_TYPE_DATA:
2642 break;
2643 case CODEC_TYPE_SUBTITLE:
2644 break;
2645 case CODEC_TYPE_UNKNOWN:
2646 break;
2647 default:
2648 av_abort();
2649 }
2650 }
2651
2652 input_files[nb_input_files] = ic;
2653 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2654 /* dump the file content */
2655 if (verbose >= 0)
2656 dump_format(ic, nb_input_files, filename, 0);
2657
2658 nb_input_files++;
2659 file_iformat = NULL;
2660 file_oformat = NULL;
2661
2662 video_channel = 0;
2663
2664 rate_emu = 0;
2665 }
2666
2667 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2668 {
2669 int has_video, has_audio, i, j;
2670 AVFormatContext *ic;
2671
2672 has_video = 0;
2673 has_audio = 0;
2674 for(j=0;j<nb_input_files;j++) {
2675 ic = input_files[j];
2676 for(i=0;i<ic->nb_streams;i++) {
2677 AVCodecContext *enc = ic->streams[i]->codec;
2678 switch(enc->codec_type) {
2679 case CODEC_TYPE_AUDIO:
2680 has_audio = 1;
2681 break;
2682 case CODEC_TYPE_VIDEO:
2683 has_video = 1;
2684 break;
2685 case CODEC_TYPE_DATA:
2686 case CODEC_TYPE_UNKNOWN:
2687 case CODEC_TYPE_SUBTITLE:
2688 break;
2689 default:
2690 av_abort();
2691 }
2692 }
2693 }
2694 *has_video_ptr = has_video;
2695 *has_audio_ptr = has_audio;
2696 }
2697
2698 static void new_video_stream(AVFormatContext *oc)
2699 {
2700 AVStream *st;
2701 AVCodecContext *video_enc;
2702 int codec_id;
2703
2704 st = av_new_stream(oc, oc->nb_streams);
2705 if (!st) {
2706 fprintf(stderr, "Could not alloc stream\n");
2707 exit(1);
2708 }
2709 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_VIDEO);
2710 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
2711 video_bitstream_filters= NULL;
2712
2713 if(thread_count>1)
2714 avcodec_thread_init(st->codec, thread_count);
2715
2716 video_enc = st->codec;
2717
2718 if(video_codec_tag)
2719 video_enc->codec_tag= video_codec_tag;
2720
2721 if( (video_global_header&1)
2722 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2723 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2724 avctx_opts[CODEC_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2725 }
2726 if(video_global_header&2){
2727 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2728 avctx_opts[CODEC_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2729 }
2730
2731 if (video_stream_copy) {
2732 st->stream_copy = 1;
2733 video_enc->codec_type = CODEC_TYPE_VIDEO;
2734 } else {
2735 char *p;
2736 int i;
2737 AVCodec *codec;
2738
2739 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2740 if (video_codec_id != CODEC_ID_NONE)
2741 codec_id = video_codec_id;
2742
2743 video_enc->codec_id = codec_id;
2744 codec = avcodec_find_encoder(codec_id);
2745
2746 for(i=0; i<opt_name_count; i++){
2747 const AVOption *opt;
2748 double d= av_get_double(avctx_opts[CODEC_TYPE_VIDEO], opt_names[i], &opt);
2749 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
2750 av_set_double(video_enc, opt_names[i], d);
2751 }
2752
2753 video_enc->time_base.den = frame_rate.num;
2754 video_enc->time_base.num = frame_rate.den;
2755 if(codec && codec->supported_framerates){
2756 const AVRational *p= codec->supported_framerates;
2757 AVRational req= (AVRational){frame_rate.num, frame_rate.den};
2758 const AVRational *best=NULL;
2759 AVRational best_error= (AVRational){INT_MAX, 1};
2760 for(; p->den!=0; p++){
2761 AVRational error= av_sub_q(req, *p);
2762 if(error.num <0) error.num *= -1;
2763 if(av_cmp_q(error, best_error) < 0){
2764 best_error= error;
2765 best= p;
2766 }
2767 }
2768 video_enc->time_base.den= best->num;
2769 video_enc->time_base.num= best->den;
2770 }
2771
2772 video_enc->width = frame_width + frame_padright + frame_padleft;
2773 video_enc->height = frame_height + frame_padtop + frame_padbottom;
2774 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
2775 video_enc->pix_fmt = frame_pix_fmt;
2776
2777 if(codec && codec->pix_fmts){
2778 const enum PixelFormat *p= codec->pix_fmts;
2779 for(; *p!=-1; p++){
2780 if(*p == video_enc->pix_fmt)
2781 break;
2782 }
2783 if(*p == -1)
2784 video_enc->pix_fmt = codec->pix_fmts[0];
2785 }
2786
2787 if (intra_only)
2788 video_enc->gop_size = 0;
2789 if (video_qscale || same_quality) {
2790 video_enc->flags |= CODEC_FLAG_QSCALE;
2791 video_enc->global_quality=
2792 st->quality = FF_QP2LAMBDA * video_qscale;
2793 }
2794
2795 if(intra_matrix)
2796 video_enc->intra_matrix = intra_matrix;
2797 if(inter_matrix)
2798 video_enc->inter_matrix = inter_matrix;
2799
2800 video_enc->max_qdiff = video_qdiff;
2801 video_enc->rc_eq = video_rc_eq;
2802 video_enc->thread_count = thread_count;
2803 p= video_rc_override_string;
2804 for(i=0; p; i++){
2805 int start, end, q;
2806 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2807 if(e!=3){
2808 fprintf(stderr, "error parsing rc_override\n");
2809 exit(1);
2810 }
2811 video_enc->rc_override=
2812 av_realloc(video_enc->rc_override,
2813 sizeof(RcOverride)*(i+1));
2814 video_enc->rc_override[i].start_frame= start;
2815 video_enc->rc_override[i].end_frame = end;
2816 if(q>0){
2817 video_enc->rc_override[i].qscale= q;
2818 video_enc->rc_override[i].quality_factor= 1.0;
2819 }
2820 else{
2821 video_enc->rc_override[i].qscale= 0;
2822 video_enc->rc_override[i].quality_factor= -q/100.0;
2823 }
2824 p= strchr(p, '/');
2825 if(p) p++;
2826 }
2827 video_enc->rc_override_count=i;
2828 if (!video_enc->rc_initial_buffer_occupancy)
2829 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
2830 video_enc->me_threshold= me_threshold;
2831 video_enc->intra_dc_precision= intra_dc_precision - 8;
2832 video_enc->strict_std_compliance = strict;
2833
2834 if (do_psnr)
2835 video_enc->flags|= CODEC_FLAG_PSNR;
2836
2837 video_enc->me_method = me_method;
2838
2839 /* two pass mode */
2840 if (do_pass) {
2841 if (do_pass == 1) {
2842 video_enc->flags |= CODEC_FLAG_PASS1;
2843 } else {
2844 video_enc->flags |= CODEC_FLAG_PASS2;
2845 }
2846 }
2847 }
2848
2849 /* reset some key parameters */
2850 video_disable = 0;
2851 video_codec_id = CODEC_ID_NONE;
2852 video_stream_copy = 0;
2853 }
2854
2855 static void new_audio_stream(AVFormatContext *oc)
2856 {
2857 AVStream *st;
2858 AVCodecContext *audio_enc;
2859 int codec_id, i;
2860
2861 st = av_new_stream(oc, oc->nb_streams);
2862 if (!st) {
2863 fprintf(stderr, "Could not alloc stream\n");
2864 exit(1);
2865 }
2866 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
2867
2868 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
2869 audio_bitstream_filters= NULL;
2870
2871 if(thread_count>1)
2872 avcodec_thread_init(st->codec, thread_count);
2873
2874 audio_enc = st->codec;
2875 audio_enc->codec_type = CODEC_TYPE_AUDIO;
2876 audio_enc->strict_std_compliance = strict;
2877
2878 if(audio_codec_tag)
2879 audio_enc->codec_tag= audio_codec_tag;
2880
2881 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
2882 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2883 avctx_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
2884 }
2885 if (audio_stream_copy) {
2886 st->stream_copy = 1;
2887 audio_enc->channels = audio_channels;
2888 } else {
2889 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
2890
2891 for(i=0; i<opt_name_count; i++){
2892 const AVOption *opt;
2893 double d= av_get_double(avctx_opts[CODEC_TYPE_AUDIO], opt_names[i], &opt);
2894 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
2895 av_set_double(audio_enc, opt_names[i], d);
2896 }
2897
2898 if (audio_codec_id != CODEC_ID_NONE)
2899 codec_id = audio_codec_id;
2900 audio_enc->codec_id = codec_id;
2901
2902 if (audio_qscale > QSCALE_NONE) {
2903 audio_enc->flags |= CODEC_FLAG_QSCALE;
2904 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
2905 }
2906 audio_enc->thread_count = thread_count;
2907 audio_enc->channels = audio_channels;
2908 }
2909 audio_enc->sample_rate = audio_sample_rate;
2910 audio_enc->time_base= (AVRational){1, audio_sample_rate};
2911 if (audio_language) {
2912 av_strlcpy(st->language, audio_language, sizeof(st->language));
2913 av_free(audio_language);
2914 audio_language = NULL;
2915 }
2916
2917 /* reset some key parameters */
2918 audio_disable = 0;
2919 audio_codec_id = CODEC_ID_NONE;
2920 audio_stream_copy = 0;
2921 }
2922
2923 static void opt_new_subtitle_stream(void)
2924 {
2925 AVFormatContext *oc;
2926 AVStream *st;
2927 AVCodecContext *subtitle_enc;
2928 int i;
2929
2930 if (nb_output_files <= 0) {
2931 fprintf(stderr, "At least one output file must be specified\n");
2932 exit(1);
2933 }
2934 oc = output_files[nb_output_files - 1];
2935
2936 st = av_new_stream(oc, oc->nb_streams);
2937 if (!st) {
2938 fprintf(stderr, "Could not alloc stream\n");
2939 exit(1);
2940 }
2941 avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
2942
2943 subtitle_enc = st->codec;
2944 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
2945 if (subtitle_stream_copy) {
2946 st->stream_copy = 1;
2947 } else {
2948 for(i=0; i<opt_name_count; i++){
2949 const AVOption *opt;
2950 double d= av_get_double(avctx_opts[CODEC_TYPE_SUBTITLE], opt_names[i], &opt);
2951 if(d==d && (opt->flags&AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
2952 av_set_double(subtitle_enc, opt_names[i], d);
2953 }
2954 subtitle_enc->codec_id = subtitle_codec_id;
2955 }
2956
2957 if (subtitle_language) {
2958 av_strlcpy(st->language, subtitle_language, sizeof(st->language));
2959 av_free(subtitle_language);
2960 subtitle_language = NULL;
2961 }
2962
2963 subtitle_codec_id = CODEC_ID_NONE;
2964 subtitle_stream_copy = 0;
2965 }
2966
2967 static void opt_new_audio_stream(void)
2968 {
2969 AVFormatContext *oc;
2970 if (nb_output_files <= 0) {
2971 fprintf(stderr, "At least one output file must be specified\n");
2972 exit(1);
2973 }
2974 oc = output_files[nb_output_files - 1];
2975 new_audio_stream(oc);
2976 }
2977
2978 static void opt_new_video_stream(void)
2979 {
2980 AVFormatContext *oc;
2981 if (nb_output_files <= 0) {
2982 fprintf(stderr, "At least one output file must be specified\n");
2983 exit(1);
2984 }
2985 oc = output_files[nb_output_files - 1];
2986 new_video_stream(oc);
2987 }
2988
2989 static void opt_output_file(const char *filename)
2990 {
2991 AVFormatContext *oc;
2992 int use_video, use_audio, input_has_video, input_has_audio, i;
2993 AVFormatParameters params, *ap = &params;
2994
2995 if (!strcmp(filename, "-"))
2996 filename = "pipe:";
2997
2998 oc = av_alloc_format_context();
2999
3000 if (!file_oformat) {
3001 file_oformat = guess_format(NULL, filename, NULL);
3002 if (!file_oformat) {
3003 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
3004 filename);
3005 exit(1);
3006 }
3007 }
3008
3009 oc->oformat = file_oformat;
3010 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3011
3012 if (!strcmp(file_oformat->name, "ffm") &&
3013 av_strstart(filename, "http:", NULL)) {
3014 /* special case for files sent to ffserver: we get the stream
3015 parameters from ffserver */
3016 if (read_ffserver_streams(oc, filename) < 0) {
3017 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
3018 exit(1);
3019 }
3020 } else {
3021 use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_id != CODEC_ID_NONE;
3022 use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_id != CODEC_ID_NONE;
3023
3024 /* disable if no corresponding type found and at least one
3025 input file */
3026 if (nb_input_files > 0) {
3027 check_audio_video_inputs(&input_has_video, &input_has_audio);
3028 if (!input_has_video)
3029 use_video = 0;
3030 if (!input_has_audio)
3031 use_audio = 0;
3032 }
3033
3034 /* manual disable */
3035 if (audio_disable) {
3036 use_audio = 0;
3037 }
3038 if (video_disable) {
3039 use_video = 0;
3040 }
3041
3042 if (use_video) {
3043 new_video_stream(oc);
3044 }
3045
3046 if (use_audio) {
3047 new_audio_stream(oc);
3048 }
3049
3050 oc->timestamp = rec_timestamp;
3051
3052 if (str_title)
3053 av_strlcpy(oc->title, str_title, sizeof(oc->title));
3054 if (str_author)
3055 av_strlcpy(oc->author, str_author, sizeof(oc->author));
3056 if (str_copyright)
3057 av_strlcpy(oc->copyright, str_copyright, sizeof(oc->copyright));
3058 if (str_comment)
3059 av_strlcpy(oc->comment, str_comment, sizeof(oc->comment));
3060 if (str_album)
3061 av_strlcpy(oc->album, str_album, sizeof(oc->album));
3062 }
3063
3064 output_files[nb_output_files++] = oc;
3065
3066 /* check filename in case of an image number is expected */
3067 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3068 if (!av_filename_number_test(oc->filename)) {
3069 print_error(oc->filename, AVERROR_NUMEXPECTED);
3070 exit(1);
3071 }
3072 }
3073
3074 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3075 /* test if it already exists to avoid loosing precious files */
3076 if (!file_overwrite &&
3077 (strchr(filename, ':') == NULL ||
3078 av_strstart(filename, "file:", NULL))) {
3079 if (url_exist(filename)) {
3080 int c;
3081
3082 if ( !using_stdin ) {
3083 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3084 fflush(stderr);
3085 c = getchar();
3086 if (toupper(c) != 'Y') {
3087 fprintf(stderr, "Not overwriting - exiting\n");
3088 exit(1);
3089 }
3090 }
3091 else {
3092 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3093 exit(1);
3094 }
3095 }
3096 }
3097
3098 /* open the file */
3099 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
3100 fprintf(stderr, "Could not open '%s'\n", filename);
3101 exit(1);
3102 }
3103 }
3104
3105 memset(ap, 0, sizeof(*ap));
3106 if (av_set_parameters(oc, ap) < 0) {
3107 fprintf(stderr, "%s: Invalid encoding parameters\n",
3108 oc->filename);
3109 exit(1);
3110 }
3111
3112 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3113 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3114 oc->loop_output = loop_output;
3115
3116 for(i=0; i<opt_name_count; i++){
3117 const AVOption *opt;
3118 double d = av_get_double(avformat_opts, opt_names[i], &opt);
3119 if(d==d && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3120 av_set_double(oc, opt_names[i], d);
3121 }
3122
3123 /* reset some options */
3124 file_oformat = NULL;
3125 file_iformat = NULL;
3126 }
3127
3128 /* same option as mencoder */
3129 static void opt_pass(const char *pass_str)
3130 {
3131 int pass;
3132 pass = atoi(pass_str);
3133 if (pass != 1 && pass != 2) {
3134 fprintf(stderr, "pass number can be only 1 or 2\n");
3135 exit(1);
3136 }
3137 do_pass = pass;
3138 }
3139
3140 #if defined(__MINGW32__) || defined(CONFIG_OS2)
3141 static int64_t getutime(void)
3142 {
3143 return av_gettime();
3144 }
3145 #else
3146 static int64_t getutime(void)
3147 {
3148 struct rusage rusage;
3149
3150 getrusage(RUSAGE_SELF, &rusage);
3151 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
3152 }
3153 #endif
3154
3155 #if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
3156 extern int ffm_nopts;
3157 #endif
3158
3159 static void show_formats(void)
3160 {
3161 AVInputFormat *ifmt;
3162 AVOutputFormat *ofmt;
3163 URLProtocol *up;
3164 AVCodec *p, *p2;
3165 const char **pp, *last_name;
3166
3167 printf("File formats:\n");
3168 last_name= "000";
3169 for(;;){
3170 int decode=0;
3171 int encode=0;
3172 const char *name=NULL;
3173 const char *long_name=NULL;
3174
3175 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
3176 if((name == NULL || strcmp(ofmt->name, name)<0) &&
3177 strcmp(ofmt->name, last_name)>0){
3178 name= ofmt->name;
3179 long_name= ofmt->long_name;
3180 encode=1;
3181 }
3182 }
3183 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
3184 if((name == NULL || strcmp(ifmt->name, name)<0) &&
3185 strcmp(ifmt->name, last_name)>0){
3186 name= ifmt->name;
3187 long_name= ifmt->long_name;
3188 encode=0;
3189 }
3190 if(name && strcmp(ifmt->name, name)==0)
3191 decode=1;
3192 }
3193 if(name==NULL)
3194 break;
3195 last_name= name;
3196
3197 printf(
3198 " %s%s %-15s %s\n",
3199 decode ? "D":" ",
3200 encode ? "E":" ",
3201 name,
3202 long_name ? long_name:" ");
3203 }
3204 printf("\n");
3205
3206 printf("Codecs:\n");
3207 last_name= "000";
3208 for(;;){
3209 int decode=0;
3210 int encode=0;
3211 int cap=0;
3212 const char *type_str;
3213
3214 p2=NULL;
3215 for(p = first_avcodec; p != NULL; p = p->next) {
3216 if((p2==NULL || strcmp(p->name, p2->name)<0) &&
3217 strcmp(p->name, last_name)>0){
3218 p2= p;
3219 decode= encode= cap=0;
3220 }
3221 if(p2 && strcmp(p->name, p2->name)==0){
3222 if(p->decode) decode=1;
3223 if(p->encode) encode=1;
3224 cap |= p->capabilities;
3225 }
3226 }
3227 if(p2==NULL)
3228 break;
3229 last_name= p2->name;
3230
3231 switch(p2->type) {
3232 case CODEC_TYPE_VIDEO:
3233 type_str = "V";
3234 break;
3235 case CODEC_TYPE_AUDIO:
3236 type_str = "A";
3237 break;
3238 case CODEC_TYPE_SUBTITLE:
3239 type_str = "S";
3240 break;
3241 default:
3242 type_str = "?";
3243 break;
3244 }
3245 printf(
3246 " %s%s%s%s%s%s %s",
3247 decode ? "D": (/*p2->decoder ? "d":*/" "),
3248 encode ? "E":" ",
3249 type_str,
3250 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
3251 cap & CODEC_CAP_DR1 ? "D":" ",
3252 cap & CODEC_CAP_TRUNCATED ? "T":" ",
3253 p2->name);
3254 /* if(p2->decoder && decode==0)
3255 printf(" use %s for decoding", p2->decoder->name);*/
3256 printf("\n");
3257 }
3258 printf("\n");
3259
3260 printf("Supported file protocols:\n");
3261 for(up = first_protocol; up != NULL; up = up->next)
3262 printf(" %s:", up->name);
3263 printf("\n");
3264
3265 printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
3266 printf("Motion estimation methods:\n");
3267 pp = motion_str;
3268 while (*pp) {
3269 printf(" %s", *pp);
3270 if ((pp - motion_str + 1) == ME_ZERO)
3271 printf("(fastest)");
3272 else if ((pp - motion_str + 1) == ME_FULL)
3273 printf("(slowest)");
3274 else if ((pp - motion_str + 1) == ME_EPZS)
3275 printf("(default)");
3276 pp++;
3277 }
3278 printf("\n\n");
3279 printf(
3280 "Note, the names of encoders and decoders do not always match, so there are\n"
3281 "several cases where the above table shows encoder only or decoder only entries\n"
3282 "even though both encoding and decoding are supported. For example, the h263\n"
3283 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
3284 "worse.\n");
3285 exit(1);
3286 }
3287
3288 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
3289 {
3290 int i;
3291 const char *p = str;
3292 for(i = 0;; i++) {
3293 dest[i] = atoi(p);
3294 if(i == 63)
3295 break;
3296 p = strchr(p, ',');
3297 if(!p) {
3298 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
3299 exit(1);
3300 }
3301 p++;
3302 }
3303 }
3304
3305 static void opt_inter_matrix(const char *arg)
3306 {
3307 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
3308 parse_matrix_coeffs(inter_matrix, arg);
3309 }
3310
3311 static void opt_intra_matrix(const char *arg)
3312 {
3313 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
3314 parse_matrix_coeffs(intra_matrix, arg);
3315 }
3316
3317 static void opt_target(const char *arg)
3318 {
3319 int norm = -1;
3320 static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
3321
3322 if(!strncmp(arg, "pal-", 4)) {
3323 norm = 0;
3324 arg += 4;
3325 } else if(!strncmp(arg, "ntsc-", 5)) {
3326 norm = 1;
3327 arg += 5;
3328 } else if(!strncmp(arg, "film-", 5)) {
3329 norm = 2;
3330 arg += 5;
3331 } else {
3332 int fr;
3333 /* Calculate FR via float to avoid int overflow */
3334 fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
3335 if(fr == 25000) {
3336 norm = 0;
3337 } else if((fr == 29970) || (fr == 23976)) {
3338 norm = 1;
3339 } else {
3340 /* Try to determine PAL/NTSC by peeking in the input files */
3341 if(nb_input_files) {
3342 int i, j;
3343 for(j = 0; j < nb_input_files; j++) {
3344 for(i = 0; i < input_files[j]->nb_streams; i++) {
3345 AVCodecContext *c = input_files[j]->streams[i]->codec;
3346 if(c->codec_type != CODEC_TYPE_VIDEO)
3347 continue;
3348 fr = c->time_base.den * 1000 / c->time_base.num;
3349 if(fr == 25000) {
3350 norm = 0;
3351 break;
3352 } else if((fr == 29970) || (fr == 23976)) {
3353 norm = 1;
3354 break;
3355 }
3356 }
3357 if(norm >= 0)
3358 break;
3359 }
3360 }
3361 }
3362 if(verbose && norm >= 0)
3363 fprintf(stderr, "Assuming %s for target.\n", norm ? "NTSC" : "PAL");
3364 }
3365
3366 if(norm < 0) {
3367 fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
3368 fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
3369 fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
3370 exit(1);
3371 }
3372
3373 if(!strcmp(arg, "vcd")) {
3374
3375 opt_video_codec("mpeg1video");
3376 opt_audio_codec("mp2");
3377 opt_format("vcd");
3378
3379 opt_frame_size(norm ? "352x240" : "352x288");
3380 opt_frame_rate(frame_rates[norm]);
3381 opt_default("gop", norm ? "18" : "15");
3382
3383 opt_default("b", "1150000");
3384 opt_default("maxrate", "1150000");
3385 opt_default("minrate", "1150000");
3386 opt_default("bufsize", "327680"); // 40*1024*8;
3387
3388 opt_default("ab", "224000");
3389 audio_sample_rate = 44100;
3390 audio_channels = 2;
3391
3392 opt_default("packetsize", "2324");
3393 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
3394
3395 /* We have to offset the PTS, so that it is consistent with the SCR.
3396 SCR starts at 36000, but the first two packs contain only padding
3397 and the first pack from the other stream, respectively, may also have
3398 been written before.
3399 So the real data starts at SCR 36000+3*1200. */
3400 mux_preload= (36000+3*1200) / 90000.0; //0.44
3401 } else if(!strcmp(arg, "svcd")) {
3402
3403 opt_video_codec("mpeg2video");
3404 opt_audio_codec("mp2");
3405 opt_format("svcd");
3406
3407 opt_frame_size(norm ? "480x480" : "480x576");
3408 opt_frame_rate(frame_rates[norm]);
3409 opt_default("gop", norm ? "18" : "15");
3410
3411 opt_default("b", "2040000");
3412 opt_default("maxrate", "2516000");
3413 opt_default("minrate", "0"); //1145000;
3414 opt_default("bufsize", "1835008"); //224*1024*8;
3415 opt_default("flags", "+SCAN_OFFSET");
3416
3417
3418 opt_default("ab", "224000");
3419 audio_sample_rate = 44100;
3420
3421 opt_default("packetsize", "2324");
3422
3423 } else if(!strcmp(arg, "dvd")) {
3424
3425 opt_video_codec("mpeg2video");
3426 opt_audio_codec("ac3");
3427 opt_format("dvd");
3428
3429 opt_frame_size(norm ? "720x480" : "720x576");
3430 opt_frame_rate(frame_rates[norm]);
3431 opt_default("gop", norm ? "18" : "15");
3432
3433 opt_default("b", "6000000");
3434 opt_default("maxrate", "9000000");
3435 opt_default("minrate", "0"); //1500000;
3436 opt_default("bufsize", "1835008"); //224*1024*8;
3437
3438 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
3439 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
3440
3441 opt_default("ab", "448000");
3442 audio_sample_rate = 48000;
3443
3444 } else if(!strncmp(arg, "dv", 2)) {
3445
3446 opt_format("dv");
3447
3448 opt_frame_size(norm ? "720x480" : "720x576");
3449 opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :
3450 (norm ? "yuv411p" : "yuv420p"));
3451 opt_frame_rate(frame_rates[norm]);
3452
3453 audio_sample_rate = 48000;
3454 audio_channels = 2;
3455
3456 } else {
3457 fprintf(stderr, "Unknown target: %s\n", arg);
3458 exit(1);
3459 }
3460 }
3461
3462 static void opt_vstats_file (const char *arg)
3463 {
3464 av_free (vstats_filename);
3465 vstats_filename=av_strdup (arg);
3466 }
3467
3468 static void opt_vstats (void)
3469 {
3470 char filename[40];
3471 time_t today2 = time(NULL);
3472 struct tm *today = localtime(&today2);
3473
3474 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
3475 today->tm_sec);
3476 opt_vstats_file(filename);
3477 }
3478
3479 static void opt_video_bsf(const char *arg)
3480 {
3481 AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
3482 AVBitStreamFilterContext **bsfp;
3483
3484 if(!bsfc){
3485 fprintf(stderr, "Unknown bitstream filter %s\n", arg);
3486 exit(1);
3487 }
3488
3489 bsfp= &video_bitstream_filters;
3490 while(*bsfp)
3491 bsfp= &(*bsfp)->next;
3492
3493 *bsfp= bsfc;
3494 }
3495
3496 //FIXME avoid audio - video code duplication
3497 static void opt_audio_bsf(const char *arg)
3498 {
3499 AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
3500 AVBitStreamFilterContext **bsfp;
3501
3502 if(!bsfc){
3503 fprintf(stderr, "Unknown bitstream filter %s\n", arg);
3504 exit(1);
3505 }
3506
3507 bsfp= &audio_bitstream_filters;
3508 while(*bsfp)
3509 bsfp= &(*bsfp)->next;
3510
3511 *bsfp= bsfc;
3512 }
3513
3514 static void show_version(void)
3515 {
3516 /* TODO: add function interface to avutil and avformat */
3517 fprintf(stderr, "ffmpeg " FFMPEG_VERSION "\n"
3518 "libavutil %d\n"
3519 "libavcodec %d\n"
3520 "libavformat %d\n",
3521 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD);
3522 exit(1);
3523 }
3524
3525 static int opt_default(const char *opt, const char *arg){
3526 int type;
3527 const AVOption *o= NULL;
3528 int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0};
3529
3530 for(type=0; type<CODEC_TYPE_NB; type++){
3531 const AVOption *o2 = av_find_opt(avctx_opts[0], opt, NULL, opt_types[type], opt_types[type]);
3532 if(o2)
3533 o = av_set_string(avctx_opts[type], opt, arg);
3534 }
3535 if(!o)
3536 o = av_set_string(avformat_opts, opt, arg);
3537 if(ENABLE_SWSCALER && !o)
3538 o = av_set_string(sws_opts, opt, arg);
3539 if(!o){
3540 if(opt[0] == 'a')
3541 o = av_set_string(avctx_opts[CODEC_TYPE_AUDIO], opt+1, arg);
3542 else if(opt[0] == 'v')
3543 o = av_set_string(avctx_opts[CODEC_TYPE_VIDEO], opt+1, arg);
3544 else if(opt[0] == 's')
3545 o = av_set_string(avctx_opts[CODEC_TYPE_SUBTITLE], opt+1, arg);
3546 }
3547 if(!o)
3548 return -1;
3549
3550 // av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avctx_opts, opt, NULL), (int)av_get_int(avctx_opts, opt, NULL));
3551
3552 //FIXME we should always use avctx_opts, ... for storing options so there wont be any need to keep track of whats set over this
3553 opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
3554 opt_names[opt_name_count++]= o->name;
3555
3556 #if defined(CONFIG_FFM_DEMUXER) || defined(CONFIG_FFM_MUXER)
3557 /* disable generate of real time pts in ffm (need to be supressed anyway) */
3558 if(avctx_opts[0]->flags & CODEC_FLAG_BITEXACT)
3559 ffm_nopts = 1;
3560 #endif
3561
3562 if(avctx_opts[0]->debug)
3563 av_log_level = AV_LOG_DEBUG;
3564 return 0;
3565 }
3566
3567 const OptionDef options[] = {
3568 /* main options */
3569 { "L", 0, {(void*)show_license}, "show license" },
3570 { "h", 0, {(void*)show_help}, "show help" },
3571 { "version", 0, {(void*)show_version}, "show version" },
3572 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
3573 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3574 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
3575 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
3576 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream[:syncfile:syncstream]" },
3577 { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile:infile" },
3578 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
3579 { "fs", HAS_ARG | OPT_INT64, {(void*)&limit_filesize}, "set the limit file size in bytes", "limit_size" }, //
3580 { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
3581 { "itsoffset", HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },
3582 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
3583 { "timestamp", HAS_ARG, {(void*)&opt_rec_timestamp}, "set the timestamp", "time" },
3584 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
3585 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
3586 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
3587 { "album", HAS_ARG | OPT_STRING, {(void*)&str_album}, "set the album", "string" },
3588 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
3589 "add timings for benchmarking" },
3590 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
3591 "dump each input packet" },
3592 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
3593 "when dumping packets, also dump the payload" },
3594 { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
3595 { "loop_input", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
3596 { "loop_output", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&loop_output}, "number of times to loop output in formats that support looping (0 loops forever)", "" },
3597 { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
3598 { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
3599 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3600 { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
3601 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
3602 { "vglobal", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_global_header}, "video global header storage type", "" },
3603 { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
3604 { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
3605 { "dts_delta_threshold", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "" },
3606
3607 /* video options */
3608 { "vframes", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&max_frames[CODEC_TYPE_VIDEO]}, "set the number of video frames to record", "number" },
3609 { "dframes", OPT_INT | HAS_ARG, {(void*)&max_frames[CODEC_TYPE_DATA]}, "set the number of data frames to record", "number" },
3610 { "r", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
3611 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3612 { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
3613 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format, 'list' as argument shows all the pixel formats supported", "format" },
3614 { "croptop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
3615 { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
3616 { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
3617 { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
3618 { "padtop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_top}, "set top pad band size (in pixels)", "size" },
3619 { "padbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_bottom}, "set bottom pad band size (in pixels)", "size" },
3620 { "padleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_left}, "set left pad band size (in pixels)", "size" },
3621 { "padright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_pad_right}, "set right pad band size (in pixels)", "size" },
3622 { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad_color}, "set color of pad bands (Hex 000000 thru FFFFFF)", "color" },
3623 { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
3624 { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" },
3625 { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
3626 { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantizer scale (VBR)", "q" },
3627 { "qdiff", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qdiff}, "max difference between the quantizer scale (VBR)", "q" },
3628 { "rc_eq", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_eq}, "set rate control equation", "equation" },
3629 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" },
3630 { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
3631 { "me", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_motion_estimation}, "set motion estimation method",
3632 "method" },
3633 { "me_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_me_threshold}, "motion estimaton threshold", "" },
3634 { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standards", "strictness" },
3635 { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality},
3636 "use same video quality as source (implies VBR)" },
3637 { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
3638 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
3639 { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
3640 "deinterlace pictures" },
3641 { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
3642 { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
3643 { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
3644 { "vhook", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)add_frame_hooker}, "insert video processing module", "module" },
3645 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" },
3646 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
3647 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
3648 { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
3649 { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
3650 { "newvideo", OPT_VIDEO, {(void*)opt_new_video_stream}, "add a new video stream to the current output stream" },
3651 { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
3652
3653 /* audio options */
3654 { "aframes", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&max_frames[CODEC_TYPE_AUDIO]}, "set the number of audio frames to record", "number" },
3655 { "aq", OPT_FLOAT | HAS_ARG | OPT_AUDIO, {(void*)&audio_qscale}, "set audio quality (codec-specific)", "quality", },
3656 { "ar", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
3657 { "ac", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_channels}, &q