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