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Produce correct version string even when not run in a Subversion working copy.
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19 #define HAVE_AV_CONFIG_H
20 #include <limits.h>
21 #include "avformat.h"
22 #include "framehook.h"
23 #include "dsputil.h"
24 #include "opt.h"
25
26 #ifndef CONFIG_WIN32
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <sys/ioctl.h>
30 #include <sys/time.h>
31 #include <termios.h>
32 #include <sys/resource.h>
33 #include <signal.h>
34 #endif
35 #ifdef CONFIG_OS2
36 #include <sys/types.h>
37 #include <sys/select.h>
38 #include <stdlib.h>
39 #endif
40 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
41 #include <time.h>
42
43 #include "version.h"
44 #include "cmdutils.h"
45
46 #undef NDEBUG
47 #include <assert.h>
48
49 #if !defined(INFINITY) && defined(HUGE_VAL)
50 #define INFINITY HUGE_VAL
51 #endif
52
53 /* select an input stream for an output stream */
54 typedef struct AVStreamMap {
55 int file_index;
56 int stream_index;
57 int sync_file_index;
58 int sync_stream_index;
59 } AVStreamMap;
60
61 /** select an input file for an output file */
62 typedef struct AVMetaDataMap {
63 int out_file;
64 int in_file;
65 } AVMetaDataMap;
66
67 extern const OptionDef options[];
68
69 static void show_help(void);
70 static void show_license(void);
71 static int opt_default(const char *opt, const char *arg);
72
73 #define MAX_FILES 20
74
75 static AVFormatContext *input_files[MAX_FILES];
76 static int64_t input_files_ts_offset[MAX_FILES];
77 static int nb_input_files = 0;
78
79 static AVFormatContext *output_files[MAX_FILES];
80 static int nb_output_files = 0;
81
82 static AVStreamMap stream_maps[MAX_FILES];
83 static int nb_stream_maps;
84
85 static AVMetaDataMap meta_data_maps[MAX_FILES];
86 static int nb_meta_data_maps;
87
88 static AVInputFormat *file_iformat;
89 static AVOutputFormat *file_oformat;
90 static AVImageFormat *image_format;
91 static int frame_width = 0;
92 static int frame_height = 0;
93 static float frame_aspect_ratio = 0;
94 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
95 static int frame_padtop = 0;
96 static int frame_padbottom = 0;
97 static int frame_padleft = 0;
98 static int frame_padright = 0;
99 static int padcolor[3] = {16,128,128}; /* default to black */
100 static int frame_topBand = 0;
101 static int frame_bottomBand = 0;
102 static int frame_leftBand = 0;
103 static int frame_rightBand = 0;
104 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
105 static int frame_rate = 25;
106 static int frame_rate_base = 1;
107 static int video_bit_rate = 200*1000;
108 static int video_bit_rate_tolerance = 4000*1000;
109 static float video_qscale = 0;
110 static int video_qmin = 2;
111 static int video_qmax = 31;
112 static int video_lmin = 2*FF_QP2LAMBDA;
113 static int video_lmax = 31*FF_QP2LAMBDA;
114 static int video_mb_lmin = 2*FF_QP2LAMBDA;
115 static int video_mb_lmax = 31*FF_QP2LAMBDA;
116 static int video_qdiff = 3;
117 static float video_qblur = 0.5;
118 static float video_qsquish = 0.0;
119 static float video_qcomp = 0.5;
120 static uint16_t *intra_matrix = NULL;
121 static uint16_t *inter_matrix = NULL;
122 #if 0 //experimental, (can be removed)
123 static float video_rc_qsquish=1.0;
124 static float video_rc_qmod_amp=0;
125 static int video_rc_qmod_freq=0;
126 #endif
127 static char *video_rc_override_string=NULL;
128 static char *video_rc_eq="tex^qComp";
129 static int video_rc_buffer_size=0;
130 static float video_rc_buffer_aggressivity=1.0;
131 static int video_rc_max_rate=0;
132 static int video_rc_min_rate=0;
133 static float video_rc_initial_cplx=0;
134 static float video_b_qfactor = 1.25;
135 static float video_b_qoffset = 1.25;
136 static float video_i_qfactor = -0.8;
137 static float video_i_qoffset = 0.0;
138 static int video_intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
139 static int video_inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
140 static int me_method = ME_EPZS;
141 static int video_disable = 0;
142 static int video_discard = 0;
143 static int video_codec_id = CODEC_ID_NONE;
144 static int video_codec_tag = 0;
145 static int same_quality = 0;
146 static int b_frames = 0;
147 static int pre_me = 0;
148 static int do_deinterlace = 0;
149 static int workaround_bugs = FF_BUG_AUTODETECT;
150 static int packet_size = 0;
151 static int error_rate = 0;
152 static int strict = 0;
153 static int top_field_first = -1;
154 static int sc_threshold = 0;
155 static int me_threshold = 0;
156 static int mb_threshold = 0;
157 static int intra_dc_precision = 8;
158 static int me_penalty_compensation= 256;
159 static int frame_skip_threshold= 0;
160 static int frame_skip_factor= 0;
161 static int frame_skip_exp= 0;
162 extern int loop_input; /* currently a hack */
163 static int loop_output = AVFMT_NOOUTPUTLOOP;
164 static int genpts = 0;
165 static int qp_hist = 0;
166
167 static int gop_size = 12;
168 static int intra_only = 0;
169 static int audio_sample_rate = 44100;
170 static int audio_bit_rate = 64000;
171 #define QSCALE_NONE -99999
172 static float audio_qscale = QSCALE_NONE;
173 static int audio_disable = 0;
174 static int audio_channels = 1;
175 static int audio_codec_id = CODEC_ID_NONE;
176 static int audio_codec_tag = 0;
177 static char *audio_language = NULL;
178
179 static int subtitle_codec_id = CODEC_ID_NONE;
180 static char *subtitle_language = NULL;
181
182 static int mux_rate= 0;
183 static int mux_packet_size= 0;
184 static float mux_preload= 0.5;
185 static float mux_max_delay= 0.7;
186
187 static int64_t recording_time = 0;
188 static int64_t start_time = 0;
189 static int64_t rec_timestamp = 0;
190 static int64_t input_ts_offset = 0;
191 static int file_overwrite = 0;
192 static char *str_title = NULL;
193 static char *str_author = NULL;
194 static char *str_copyright = NULL;
195 static char *str_comment = NULL;
196 static int do_benchmark = 0;
197 static int do_hex_dump = 0;
198 static int do_pkt_dump = 0;
199 static int do_psnr = 0;
200 static int do_vstats = 0;
201 static int do_pass = 0;
202 static char *pass_logfilename = NULL;
203 static int audio_stream_copy = 0;
204 static int video_stream_copy = 0;
205 static int subtitle_stream_copy = 0;
206 static int video_sync_method= 1;
207 static int audio_sync_method= 0;
208 static int copy_ts= 0;
209 static int opt_shortest = 0; //
210 static int video_global_header = 0;
211
212 static int rate_emu = 0;
213
214 #ifdef CONFIG_BKTR
215 static const char *video_grab_format = "bktr";
216 #else
217 #ifdef CONFIG_VIDEO4LINUX2
218 static const char *video_grab_format = "video4linux2";
219 #else
220 static const char *video_grab_format = "video4linux";
221 #endif
222 #endif
223 static char *video_device = NULL;
224 static char *grab_device = NULL;
225 static int video_channel = 0;
226 static char *video_standard = "ntsc";
227
228 static const char *audio_grab_format = "audio_device";
229 static char *audio_device = NULL;
230 static int audio_volume = 256;
231
232 static int using_stdin = 0;
233 static int using_vhook = 0;
234 static int verbose = 1;
235 static int thread_count= 1;
236 static int q_pressed = 0;
237 static int me_range = 0;
238 static int64_t video_size = 0;
239 static int64_t audio_size = 0;
240 static int64_t extra_size = 0;
241 static int nb_frames_dup = 0;
242 static int nb_frames_drop = 0;
243 static int input_sync;
244 static int limit_filesize = 0; //
245
246 static int pgmyuv_compatibility_hack=0;
247 static int dts_delta_threshold = 10;
248
249 const char **opt_names=NULL;
250 int opt_name_count=0;
251 AVCodecContext *avctx_opts;
252
253
254 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
255
256 struct AVInputStream;
257
258 typedef struct AVOutputStream {
259 int file_index; /* file index */
260 int index; /* stream index in the output file */
261 int source_index; /* AVInputStream index */
262 AVStream *st; /* stream in the output file */
263 int encoding_needed; /* true if encoding needed for this stream */
264 int frame_number;
265 /* input pts and corresponding output pts
266 for A/V sync */
267 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
268 struct AVInputStream *sync_ist; /* input stream to sync against */
269 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
270 /* video only */
271 int video_resample;
272 AVFrame pict_tmp; /* temporary image for resampling */
273 ImgReSampleContext *img_resample_ctx; /* for image resampling */
274
275 int video_crop;
276 int topBand; /* cropping area sizes */
277 int leftBand;
278
279 int video_pad;
280 int padtop; /* padding area sizes */
281 int padbottom;
282 int padleft;
283 int padright;
284
285 /* audio only */
286 int audio_resample;
287 ReSampleContext *resample; /* for audio resampling */
288 FifoBuffer fifo; /* for compression: one audio fifo per codec */
289 FILE *logfile;
290 } AVOutputStream;
291
292 typedef struct AVInputStream {
293 int file_index;
294 int index;
295 AVStream *st;
296 int discard; /* true if stream data should be discarded */
297 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
298 int64_t sample_index; /* current sample */
299
300 int64_t start; /* time when read started */
301 unsigned long frame; /* current frame */
302 int64_t next_pts; /* synthetic pts for cases where pkt.pts
303 is not defined */
304 int64_t pts; /* current pts */
305 int is_start; /* is 1 at the start and after a discontinuity */
306 } AVInputStream;
307
308 typedef struct AVInputFile {
309 int eof_reached; /* true if eof reached */
310 int ist_index; /* index of first stream in ist_table */
311 int buffer_size; /* current total buffer size */
312 int buffer_size_max; /* buffer size at which we consider we can stop
313 buffering */
314 int nb_streams; /* nb streams we are aware of */
315 } AVInputFile;
316
317 #ifndef CONFIG_WIN32
318
319 /* init terminal so that we can grab keys */
320 static struct termios oldtty;
321
322 static void term_exit(void)
323 {
324 tcsetattr (0, TCSANOW, &oldtty);
325 }
326
327 static volatile sig_atomic_t received_sigterm = 0;
328
329 static void
330 sigterm_handler(int sig)
331 {
332 received_sigterm = sig;
333 term_exit();
334 }
335
336 static void term_init(void)
337 {
338 struct termios tty;
339
340 tcgetattr (0, &tty);
341 oldtty = tty;
342
343 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
344 |INLCR|IGNCR|ICRNL|IXON);
345 tty.c_oflag |= OPOST;
346 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
347 tty.c_cflag &= ~(CSIZE|PARENB);
348 tty.c_cflag |= CS8;
349 tty.c_cc[VMIN] = 1;
350 tty.c_cc[VTIME] = 0;
351
352 tcsetattr (0, TCSANOW, &tty);
353
354 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
355 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
356 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
357 /*
358 register a function to be called at normal program termination
359 */
360 atexit(term_exit);
361 #ifdef CONFIG_BEOS_NETSERVER
362 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
363 #endif
364 }
365
366 /* read a key without blocking */
367 static int read_key(void)
368 {
369 int n = 1;
370 unsigned char ch;
371 #ifndef CONFIG_BEOS_NETSERVER
372 struct timeval tv;
373 fd_set rfds;
374
375 FD_ZERO(&rfds);
376 FD_SET(0, &rfds);
377 tv.tv_sec = 0;
378 tv.tv_usec = 0;
379 n = select(1, &rfds, NULL, NULL, &tv);
380 #endif
381 if (n > 0) {
382 n = read(0, &ch, 1);
383 if (n == 1)
384 return ch;
385
386 return n;
387 }
388 return -1;
389 }
390
391 static int decode_interrupt_cb(void)
392 {
393 return q_pressed || (q_pressed = read_key() == 'q');
394 }
395
396 #else
397
398 static volatile int received_sigterm = 0;
399
400 /* no interactive support */
401 static void term_exit(void)
402 {
403 }
404
405 static void term_init(void)
406 {
407 }
408
409 static int read_key(void)
410 {
411 return 0;
412 }
413
414 #endif
415
416 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
417 {
418 int i, err;
419 AVFormatContext *ic;
420
421 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
422 if (err < 0)
423 return err;
424 /* copy stream format */
425 s->nb_streams = ic->nb_streams;
426 for(i=0;i<ic->nb_streams;i++) {
427 AVStream *st;
428
429 // FIXME: a more elegant solution is needed
430 st = av_mallocz(sizeof(AVStream));
431 memcpy(st, ic->streams[i], sizeof(AVStream));
432 st->codec = avcodec_alloc_context();
433 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
434 s->streams[i] = st;
435 }
436
437 av_close_input_file(ic);
438 return 0;
439 }
440
441 static double
442 get_sync_ipts(const AVOutputStream *ost)
443 {
444 const AVInputStream *ist = ost->sync_ist;
445 return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
446 }
447
448 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
449
450 static void do_audio_out(AVFormatContext *s,
451 AVOutputStream *ost,
452 AVInputStream *ist,
453 unsigned char *buf, int size)
454 {
455 uint8_t *buftmp;
456 static uint8_t *audio_buf = NULL;
457 static uint8_t *audio_out = NULL;
458 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
459
460 int size_out, frame_bytes, ret;
461 AVCodecContext *enc= ost->st->codec;
462
463 /* SC: dynamic allocation of buffers */
464 if (!audio_buf)
465 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
466 if (!audio_out)
467 audio_out = av_malloc(audio_out_size);
468 if (!audio_buf || !audio_out)
469 return; /* Should signal an error ! */
470
471 if(audio_sync_method){
472 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
473 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2);
474 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
475 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
476
477 //FIXME resample delay
478 if(fabs(delta) > 50){
479 if(ist->is_start){
480 if(byte_delta < 0){
481 byte_delta= FFMAX(byte_delta, -size);
482 size += byte_delta;
483 buf -= byte_delta;
484 if(verbose > 2)
485 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
486 if(!size)
487 return;
488 ist->is_start=0;
489 }else{
490 static uint8_t *input_tmp= NULL;
491 input_tmp= av_realloc(input_tmp, byte_delta + size);
492
493 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
494 ist->is_start=0;
495 else
496 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
497
498 memset(input_tmp, 0, byte_delta);
499 memcpy(input_tmp + byte_delta, buf, size);
500 buf= input_tmp;
501 size += byte_delta;
502 if(verbose > 2)
503 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
504 }
505 }else if(audio_sync_method>1){
506 int comp= clip(delta, -audio_sync_method, audio_sync_method);
507 assert(ost->audio_resample);
508 if(verbose > 2)
509 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
510 // fprintf(stderr, "drift:%f len:%d opts:%lld ipts:%lld fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2));
511 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
512 }
513 }
514 }else
515 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
516 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2); //FIXME wrong
517
518 if (ost->audio_resample) {
519 buftmp = audio_buf;
520 size_out = audio_resample(ost->resample,
521 (short *)buftmp, (short *)buf,
522 size / (ist->st->codec->channels * 2));
523 size_out = size_out * enc->channels * 2;
524 } else {
525 buftmp = buf;
526 size_out = size;
527 }
528
529 /* now encode as many frames as possible */
530 if (enc->frame_size > 1) {
531 /* output resampled raw samples */
532 fifo_write(&ost->fifo, buftmp, size_out,
533 &ost->fifo.wptr);
534
535 frame_bytes = enc->frame_size * 2 * enc->channels;
536
537 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
538 &ost->fifo.rptr) == 0) {
539 AVPacket pkt;
540 av_init_packet(&pkt);
541
542 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
543 (short *)audio_buf);
544 audio_size += ret;
545 pkt.stream_index= ost->index;
546 pkt.data= audio_out;
547 pkt.size= ret;
548 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
549 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
550 pkt.flags |= PKT_FLAG_KEY;
551 av_interleaved_write_frame(s, &pkt);
552
553 ost->sync_opts += enc->frame_size;
554 }
555 } else {
556 AVPacket pkt;
557 av_init_packet(&pkt);
558
559 ost->sync_opts += size_out / (2 * enc->channels);
560
561 /* output a pcm frame */
562 /* XXX: change encoding codec API to avoid this ? */
563 switch(enc->codec->id) {
564 case CODEC_ID_PCM_S32LE:
565 case CODEC_ID_PCM_S32BE:
566 case CODEC_ID_PCM_U32LE:
567 case CODEC_ID_PCM_U32BE:
568 size_out = size_out << 1;
569 break;
570 case CODEC_ID_PCM_S24LE:
571 case CODEC_ID_PCM_S24BE:
572 case CODEC_ID_PCM_U24LE:
573 case CODEC_ID_PCM_U24BE:
574 case CODEC_ID_PCM_S24DAUD:
575 size_out = size_out / 2 * 3;
576 break;
577 case CODEC_ID_PCM_S16LE:
578 case CODEC_ID_PCM_S16BE:
579 case CODEC_ID_PCM_U16LE:
580 case CODEC_ID_PCM_U16BE:
581 break;
582 default:
583 size_out = size_out >> 1;
584 break;
585 }
586 ret = avcodec_encode_audio(enc, audio_out, size_out,
587 (short *)buftmp);
588 audio_size += ret;
589 pkt.stream_index= ost->index;
590 pkt.data= audio_out;
591 pkt.size= ret;
592 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
593 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
594 pkt.flags |= PKT_FLAG_KEY;
595 av_interleaved_write_frame(s, &pkt);
596 }
597 }
598
599 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
600 {
601 AVCodecContext *dec;
602 AVPicture *picture2;
603 AVPicture picture_tmp;
604 uint8_t *buf = 0;
605
606 dec = ist->st->codec;
607
608 /* deinterlace : must be done before any resize */
609 if (do_deinterlace || using_vhook) {
610 int size;
611
612 /* create temporary picture */
613 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
614 buf = av_malloc(size);
615 if (!buf)
616 return;
617
618 picture2 = &picture_tmp;
619 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
620
621 if (do_deinterlace){
622 if(avpicture_deinterlace(picture2, picture,
623 dec->pix_fmt, dec->width, dec->height) < 0) {
624 /* if error, do not deinterlace */
625 av_free(buf);
626 buf = NULL;
627 picture2 = picture;
628 }
629 } else {
630 img_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
631 }
632 } else {
633 picture2 = picture;
634 }
635
636 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
637
638 if (picture != picture2)
639 *picture = *picture2;
640 *bufp = buf;
641 }
642
643 /* we begin to correct av delay at this threshold */
644 #define AV_DELAY_MAX 0.100
645
646 static void do_subtitle_out(AVFormatContext *s,
647 AVOutputStream *ost,
648 AVInputStream *ist,
649 AVSubtitle *sub,
650 int64_t pts)
651 {
652 static uint8_t *subtitle_out = NULL;
653 int subtitle_out_max_size = 65536;
654 int subtitle_out_size, nb, i;
655 AVCodecContext *enc;
656 AVPacket pkt;
657
658 if (pts == AV_NOPTS_VALUE) {
659 fprintf(stderr, "Subtitle packets must have a pts\n");
660 return;
661 }
662
663 enc = ost->st->codec;
664
665 if (!subtitle_out) {
666 subtitle_out = av_malloc(subtitle_out_max_size);
667 }
668
669 /* Note: DVB subtitle need one packet to draw them and one other
670 packet to clear them */
671 /* XXX: signal it in the codec context ? */
672 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
673 nb = 2;
674 else
675 nb = 1;
676
677 for(i = 0; i < nb; i++) {
678 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
679 subtitle_out_max_size, sub);
680
681 av_init_packet(&pkt);
682 pkt.stream_index = ost->index;
683 pkt.data = subtitle_out;
684 pkt.size = subtitle_out_size;
685 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);
686 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
687 /* XXX: the pts correction is handled here. Maybe handling
688 it in the codec would be better */
689 if (i == 0)
690 pkt.pts += 90 * sub->start_display_time;
691 else
692 pkt.pts += 90 * sub->end_display_time;
693 }
694 av_interleaved_write_frame(s, &pkt);
695 }
696 }
697
698 static int bit_buffer_size= 1024*256;
699 static uint8_t *bit_buffer= NULL;
700
701 static void do_video_out(AVFormatContext *s,
702 AVOutputStream *ost,
703 AVInputStream *ist,
704 AVFrame *in_picture,
705 int *frame_size)
706 {
707 int nb_frames, i, ret;
708 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
709 AVFrame picture_format_temp, picture_crop_temp, picture_pad_temp;
710 uint8_t *buf = NULL, *buf1 = NULL;
711 AVCodecContext *enc, *dec;
712 enum PixelFormat target_pixfmt;
713
714 avcodec_get_frame_defaults(&picture_format_temp);
715 avcodec_get_frame_defaults(&picture_crop_temp);
716 avcodec_get_frame_defaults(&picture_pad_temp);
717
718 enc = ost->st->codec;
719 dec = ist->st->codec;
720
721 /* by default, we output a single frame */
722 nb_frames = 1;
723
724 *frame_size = 0;
725
726 if(video_sync_method){
727 double vdelta;
728 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
729 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
730 if (vdelta < -1.1)
731 nb_frames = 0;
732 else if (vdelta > 1.1)
733 nb_frames = lrintf(vdelta);
734 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%lld, ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);
735 if (nb_frames == 0){
736 ++nb_frames_drop;
737 if (verbose>2)
738 fprintf(stderr, "*** drop!\n");
739 }else if (nb_frames > 1) {
740 nb_frames_dup += nb_frames;
741 if (verbose>2)
742 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
743 }
744 }else
745 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
746
747 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
748 if (nb_frames <= 0)
749 return;
750
751 /* convert pixel format if needed */
752 target_pixfmt = ost->video_resample ? PIX_FMT_YUV420P : enc->pix_fmt;
753 if (dec->pix_fmt != target_pixfmt) {
754 int size;
755
756 /* create temporary picture */
757 size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
758 buf = av_malloc(size);
759 if (!buf)
760 return;
761 formatted_picture = &picture_format_temp;
762 avpicture_fill((AVPicture*)formatted_picture, buf, target_pixfmt, dec->width, dec->height);
763
764 if (img_convert((AVPicture*)formatted_picture, target_pixfmt,
765 (AVPicture *)in_picture, dec->pix_fmt,
766 dec->width, dec->height) < 0) {
767
768 if (verbose >= 0)
769 fprintf(stderr, "pixel format conversion not handled\n");
770
771 goto the_end;
772 }
773 } else {
774 formatted_picture = in_picture;
775 }
776
777 if (ost->video_crop) {
778 if (img_crop((AVPicture *)&picture_crop_temp, (AVPicture *)formatted_picture, target_pixfmt, ost->topBand, ost->leftBand) < 0) {
779 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
780 goto the_end;
781 }
782 formatted_picture = &picture_crop_temp;
783 }
784
785 final_picture = formatted_picture;
786 padding_src = formatted_picture;
787 resampling_dst = &ost->pict_tmp;
788 if (ost->video_pad) {
789 final_picture = &ost->pict_tmp;
790 if (ost->video_resample) {
791 if (img_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, target_pixfmt, ost->padtop, ost->padleft) < 0) {
792 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
793 goto the_end;
794 }
795 resampling_dst = &picture_pad_temp;
796 }
797 }
798
799 /* XXX: resampling could be done before raw format conversion in
800 some cases to go faster */
801 /* XXX: only works for YUV420P */
802 if (ost->video_resample) {
803 padding_src = NULL;
804 final_picture = &ost->pict_tmp;
805 img_resample(ost->img_resample_ctx, (AVPicture *)resampling_dst, (AVPicture*)formatted_picture);
806 }
807
808 if (enc->pix_fmt != target_pixfmt) {
809 int size;
810
811 av_free(buf);
812 /* create temporary picture */
813 size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
814 buf = av_malloc(size);
815 if (!buf)
816 return;
817 final_picture = &picture_format_temp;
818 avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
819
820 if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
821 (AVPicture*)&ost->pict_tmp, target_pixfmt,
822 enc->width, enc->height) < 0) {
823
824 if (verbose >= 0)
825 fprintf(stderr, "pixel format conversion not handled\n");
826
827 goto the_end;
828 }
829 }
830
831 if (ost->video_pad) {
832 img_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
833 enc->height, enc->width, enc->pix_fmt,
834 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
835 }
836
837 /* duplicates frame if needed */
838 for(i=0;i<nb_frames;i++) {
839 AVPacket pkt;
840 av_init_packet(&pkt);
841 pkt.stream_index= ost->index;
842
843 if (s->oformat->flags & AVFMT_RAWPICTURE) {
844 /* raw pictures are written as AVPicture structure to
845 avoid any copies. We support temorarily the older
846 method. */
847 AVFrame* old_frame = enc->coded_frame;
848 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
849 pkt.data= (uint8_t *)final_picture;
850 pkt.size= sizeof(AVPicture);
851 if(dec->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
852 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
853 if(dec->coded_frame && dec->coded_frame->key_frame)
854 pkt.flags |= PKT_FLAG_KEY;
855
856 av_interleaved_write_frame(s, &pkt);
857 enc->coded_frame = old_frame;
858 } else {
859 AVFrame big_picture;
860
861 big_picture= *final_picture;
862 /* better than nothing: use input picture interlaced
863 settings */
864 big_picture.interlaced_frame = in_picture->interlaced_frame;
865 if(avctx_opts->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
866 if(top_field_first == -1)
867 big_picture.top_field_first = in_picture->top_field_first;
868 else
869 big_picture.top_field_first = top_field_first;
870 }
871
872 /* handles sameq here. This is not correct because it may
873 not be a global option */
874 if (same_quality) {
875 big_picture.quality = ist->st->quality;
876 }else
877 big_picture.quality = ost->st->quality;
878 if(!me_threshold)
879 big_picture.pict_type = 0;
880 // big_picture.pts = AV_NOPTS_VALUE;
881 big_picture.pts= ost->sync_opts;
882 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
883 //av_log(NULL, AV_LOG_DEBUG, "%lld -> encoder\n", ost->sync_opts);
884 ret = avcodec_encode_video(enc,
885 bit_buffer, bit_buffer_size,
886 &big_picture);
887 //enc->frame_number = enc->real_pict_num;
888 if(ret>0){
889 pkt.data= bit_buffer;
890 pkt.size= ret;
891 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
892 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
893 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %lld/%lld\n",
894 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
895 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
896
897 if(enc->coded_frame && enc->coded_frame->key_frame)
898 pkt.flags |= PKT_FLAG_KEY;
899 av_interleaved_write_frame(s, &pkt);
900 *frame_size = ret;
901 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
902 // enc->frame_number-1, enc->real_pict_num, ret,
903 // enc->pict_type);
904 /* if two pass, output log */
905 if (ost->logfile && enc->stats_out) {
906 fprintf(ost->logfile, "%s", enc->stats_out);
907 }
908 }
909 }
910 ost->sync_opts++;
911 ost->frame_number++;
912 }
913 the_end:
914 av_free(buf);
915 av_free(buf1);
916 }
917
918 static double psnr(double d){
919 if(d==0) return INFINITY;
920 return -10.0*log(d)/log(10.0);
921 }
922
923 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
924 int frame_size)
925 {
926 static FILE *fvstats=NULL;
927 char filename[40];
928 time_t today2;
929 struct tm *today;
930 AVCodecContext *enc;
931 int frame_number;
932 int64_t ti;
933 double ti1, bitrate, avg_bitrate;
934
935 if (!fvstats) {
936 today2 = time(NULL);
937 today = localtime(&today2);
938 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour,
939 today->tm_min,
940 today->tm_sec);
941 fvstats = fopen(filename,"w");
942 if (!fvstats) {
943 perror("fopen");
944 exit(1);
945 }
946 }
947
948 ti = MAXINT64;
949 enc = ost->st->codec;
950 if (enc->codec_type == CODEC_TYPE_VIDEO) {
951 frame_number = ost->frame_number;
952 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
953 if (enc->flags&CODEC_FLAG_PSNR)
954 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
955
956 fprintf(fvstats,"f_size= %6d ", frame_size);
957 /* compute pts value */
958 ti1 = ost->sync_opts * av_q2d(enc->time_base);
959 if (ti1 < 0.01)
960 ti1 = 0.01;
961
962 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
963 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
964 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
965 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
966 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
967 }
968 }
969
970 static void print_report(AVFormatContext **output_files,
971 AVOutputStream **ost_table, int nb_ostreams,
972 int is_last_report)
973 {
974 char buf[1024];
975 AVOutputStream *ost;
976 AVFormatContext *oc, *os;
977 int64_t total_size;
978 AVCodecContext *enc;
979 int frame_number, vid, i;
980 double bitrate, ti1, pts;
981 static int64_t last_time = -1;
982 static int qp_histogram[52];
983
984 if (!is_last_report) {
985 int64_t cur_time;
986 /* display the report every 0.5 seconds */
987 cur_time = av_gettime();
988 if (last_time == -1) {
989 last_time = cur_time;
990 return;
991 }
992 if ((cur_time - last_time) < 500000)
993 return;
994 last_time = cur_time;
995 }
996
997
998 oc = output_files[0];
999
1000 total_size = url_ftell(&oc->pb);
1001
1002 buf[0] = '\0';
1003 ti1 = 1e10;
1004 vid = 0;
1005 for(i=0;i<nb_ostreams;i++) {
1006 ost = ost_table[i];
1007 os = output_files[ost->file_index];
1008 enc = ost->st->codec;
1009 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1010 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1011 enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1012 }
1013 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1014 frame_number = ost->frame_number;
1015 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%3.1f ",
1016 frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1017 if(is_last_report)
1018 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1019 if(qp_hist && enc->coded_frame){
1020 int j;
1021 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1022 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1023 qp_histogram[qp]++;
1024 for(j=0; j<32; j++)
1025 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1026 }
1027 if (enc->flags&CODEC_FLAG_PSNR){
1028 int j;
1029 double error, error_sum=0;
1030 double scale, scale_sum=0;
1031 char type[3]= {'Y','U','V'};
1032 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1033 for(j=0; j<3; j++){
1034 if(is_last_report){
1035 error= enc->error[j];
1036 scale= enc->width*enc->height*255.0*255.0*frame_number;
1037 }else{
1038 error= enc->coded_frame->error[j];
1039 scale= enc->width*enc->height*255.0*255.0;
1040 }
1041 if(j) scale/=4;
1042 error_sum += error;
1043 scale_sum += scale;
1044 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1045 }
1046 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1047 }
1048 vid = 1;
1049 }
1050 /* compute min output value */
1051 pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
1052 if ((pts < ti1) && (pts > 0))
1053 ti1 = pts;
1054 }
1055 if (ti1 < 0.01)
1056 ti1 = 0.01;
1057
1058 if (verbose || is_last_report) {
1059 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1060
1061 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1062 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1063 (double)total_size / 1024, ti1, bitrate);
1064
1065 if (verbose > 1)
1066 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1067 nb_frames_dup, nb_frames_drop);
1068
1069 if (verbose >= 0)
1070 fprintf(stderr, "%s \r", buf);
1071
1072 fflush(stderr);
1073 }
1074
1075 if (is_last_report && verbose >= 0){
1076 int64_t raw= audio_size + video_size + extra_size;
1077 fprintf(stderr, "\n");
1078 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1079 video_size/1024.0,
1080 audio_size/1024.0,
1081 extra_size/1024.0,
1082 100.0*(total_size - raw)/raw
1083 );
1084 }
1085 }
1086
1087 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1088 static int output_packet(AVInputStream *ist, int ist_index,
1089 AVOutputStream **ost_table, int nb_ostreams,
1090 const AVPacket *pkt)
1091 {
1092 AVFormatContext *os;
1093 AVOutputStream *ost;
1094 uint8_t *ptr;
1095 int len, ret, i;
1096 uint8_t *data_buf;
1097 int data_size, got_picture;
1098 AVFrame picture;
1099 void *buffer_to_free;
1100 static unsigned int samples_size= 0;
1101 static short *samples= NULL;
1102 AVSubtitle subtitle, *subtitle_to_free;
1103 int got_subtitle;
1104
1105 if(!pkt){
1106 ist->pts= ist->next_pts; // needed for last packet if vsync=0
1107 } else if (pkt->dts != AV_NOPTS_VALUE) { //FIXME seems redundant, as libavformat does this too
1108 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1109 } else {
1110 // assert(ist->pts == ist->next_pts);
1111 }
1112
1113 if (pkt == NULL) {
1114 /* EOF handling */
1115 ptr = NULL;
1116 len = 0;
1117 goto handle_eof;
1118 }
1119
1120 len = pkt->size;
1121 ptr = pkt->data;
1122 while (len > 0) {
1123 handle_eof:
1124 /* decode the packet if needed */
1125 data_buf = NULL; /* fail safe */
1126 data_size = 0;
1127 subtitle_to_free = NULL;
1128 if (ist->decoding_needed) {
1129 switch(ist->st->codec->codec_type) {
1130 case CODEC_TYPE_AUDIO:{
1131 if(pkt)
1132 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
1133 /* XXX: could avoid copy if PCM 16 bits with same
1134 endianness as CPU */
1135 ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
1136 ptr, len);
1137 if (ret < 0)
1138 goto fail_decode;
1139 ptr += ret;
1140 len -= ret;
1141 /* Some bug in mpeg audio decoder gives */
1142 /* data_size < 0, it seems they are overflows */
1143 if (data_size <= 0) {
1144 /* no audio frame */
1145 continue;
1146 }
1147 data_buf = (uint8_t *)samples;
1148 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1149 (ist->st->codec->sample_rate * ist->st->codec->channels);
1150 break;}
1151 case CODEC_TYPE_VIDEO:
1152 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1153 /* XXX: allocate picture correctly */
1154 avcodec_get_frame_defaults(&picture);
1155
1156 ret = avcodec_decode_video(ist->st->codec,
1157 &picture, &got_picture, ptr, len);
1158 ist->st->quality= picture.quality;
1159 if (ret < 0)
1160 goto fail_decode;
1161 if (!got_picture) {
1162 /* no picture yet */
1163 goto discard_packet;
1164 }
1165 if (ist->st->codec->time_base.num != 0) {
1166 ist->next_pts += ((int64_t)AV_TIME_BASE *
1167 ist->st->codec->time_base.num) /
1168 ist->st->codec->time_base.den;
1169 }
1170 len = 0;
1171 break;
1172 case CODEC_TYPE_SUBTITLE:
1173 ret = avcodec_decode_subtitle(ist->st->codec,
1174 &subtitle, &got_subtitle, ptr, len);
1175 if (ret < 0)
1176 goto fail_decode;
1177 if (!got_subtitle) {
1178 goto discard_packet;
1179 }
1180 subtitle_to_free = &subtitle;
1181 len = 0;
1182 break;
1183 default:
1184 goto fail_decode;
1185 }
1186 } else {
1187 switch(ist->st->codec->codec_type) {
1188 case CODEC_TYPE_AUDIO:
1189 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1190 (ist->st->codec->sample_rate * ist->st->codec->channels);
1191 break;
1192 case CODEC_TYPE_VIDEO:
1193 if (ist->st->codec->time_base.num != 0) {
1194 ist->next_pts += ((int64_t)AV_TIME_BASE *
1195 ist->st->codec->time_base.num) /
1196 ist->st->codec->time_base.den;
1197 }
1198 break;
1199 }
1200 data_buf = ptr;
1201 data_size = len;
1202 ret = len;
1203 len = 0;
1204 }
1205
1206 buffer_to_free = NULL;
1207 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1208 pre_process_video_frame(ist, (AVPicture *)&picture,
1209 &buffer_to_free);
1210 }
1211
1212 // preprocess audio (volume)
1213 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1214 if (audio_volume != 256) {
1215 short *volp;
1216 volp = samples;
1217 for(i=0;i<(data_size / sizeof(short));i++) {
1218 int v = ((*volp) * audio_volume + 128) >> 8;
1219 if (v < -32768) v = -32768;
1220 if (v > 32767) v = 32767;
1221 *volp++ = v;
1222 }
1223 }
1224 }
1225
1226 /* frame rate emulation */
1227 if (ist->st->codec->rate_emu) {
1228 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1229 int64_t now = av_gettime() - ist->start;
1230 if (pts > now)
1231 usleep(pts - now);
1232
1233 ist->frame++;
1234 }
1235
1236 #if 0
1237 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1238 is the one of the next displayed one */
1239 /* XXX: add mpeg4 too ? */
1240 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1241 if (ist->st->codec->pict_type != B_TYPE) {
1242 int64_t tmp;
1243 tmp = ist->last_ip_pts;
1244 ist->last_ip_pts = ist->frac_pts.val;
1245 ist->frac_pts.val = tmp;
1246 }
1247 }
1248 #endif
1249 /* if output time reached then transcode raw format,
1250 encode packets and output them */
1251 if (start_time == 0 || ist->pts >= start_time)
1252 for(i=0;i<nb_ostreams;i++) {
1253 int frame_size;
1254
1255 ost = ost_table[i];
1256 if (ost->source_index == ist_index) {
1257 os = output_files[ost->file_index];
1258
1259 #if 0
1260 printf("%d: got pts=%0.3f %0.3f\n", i,
1261 (double)pkt->pts / AV_TIME_BASE,
1262 ((double)ist->pts / AV_TIME_BASE) -
1263 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1264 #endif
1265 /* set the input output pts pairs */
1266 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1267
1268 if (ost->encoding_needed) {
1269 switch(ost->st->codec->codec_type) {
1270 case CODEC_TYPE_AUDIO:
1271 do_audio_out(os, ost, ist, data_buf, data_size);
1272 break;
1273 case CODEC_TYPE_VIDEO:
1274 do_video_out(os, ost, ist, &picture, &frame_size);
1275 video_size += frame_size;
1276 if (do_vstats && frame_size)
1277 do_video_stats(os, ost, frame_size);
1278 break;
1279 case CODEC_TYPE_SUBTITLE:
1280 do_subtitle_out(os, ost, ist, &subtitle,
1281 pkt->pts);
1282 break;
1283 default:
1284 av_abort();
1285 }
1286 } else {
1287 AVFrame avframe; //FIXME/XXX remove this
1288 AVPacket opkt;
1289 av_init_packet(&opkt);
1290
1291 /* no reencoding needed : output the packet directly */
1292 /* force the input stream PTS */
1293
1294 avcodec_get_frame_defaults(&avframe);
1295 ost->st->codec->coded_frame= &avframe;
1296 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1297
1298 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1299 audio_size += data_size;
1300 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1301 video_size += data_size;
1302 ost->sync_opts++;
1303 }
1304
1305 opkt.stream_index= ost->index;
1306 if(pkt->pts != AV_NOPTS_VALUE)
1307 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);
1308 else
1309 opkt.pts= AV_NOPTS_VALUE;
1310
1311 {
1312 int64_t dts;
1313 if (pkt->dts == AV_NOPTS_VALUE)
1314 dts = ist->next_pts;
1315 else
1316 dts= av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1317 opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
1318 }
1319 opkt.flags= pkt->flags;
1320 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1321 opkt.destruct= av_destruct_packet;
1322 av_interleaved_write_frame(os, &opkt);
1323 ost->st->codec->frame_number++;
1324 ost->frame_number++;
1325 av_free_packet(&opkt);
1326 }
1327 }
1328 }
1329 av_free(buffer_to_free);
1330 /* XXX: allocate the subtitles in the codec ? */
1331 if (subtitle_to_free) {
1332 if (subtitle_to_free->rects != NULL) {
1333 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1334 av_free(subtitle_to_free->rects[i].bitmap);
1335 av_free(subtitle_to_free->rects[i].rgba_palette);
1336 }
1337 av_freep(&subtitle_to_free->rects);
1338 }
1339 subtitle_to_free->num_rects = 0;
1340 subtitle_to_free = NULL;
1341 }
1342 }
1343 discard_packet:
1344 if (pkt == NULL) {
1345 /* EOF handling */
1346
1347 for(i=0;i<nb_ostreams;i++) {
1348 ost = ost_table[i];
1349 if (ost->source_index == ist_index) {
1350 AVCodecContext *enc= ost->st->codec;
1351 os = output_files[ost->file_index];
1352
1353 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1354 continue;
1355 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1356 continue;
1357
1358 if (ost->encoding_needed) {
1359 for(;;) {
1360 AVPacket pkt;
1361 av_init_packet(&pkt);
1362 pkt.stream_index= ost->index;
1363
1364 switch(ost->st->codec->codec_type) {
1365 case CODEC_TYPE_AUDIO:
1366 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1367 audio_size += ret;
1368 pkt.flags |= PKT_FLAG_KEY;
1369 break;
1370 case CODEC_TYPE_VIDEO:
1371 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1372 video_size += ret;
1373 if(enc->coded_frame && enc->coded_frame->key_frame)
1374 pkt.flags |= PKT_FLAG_KEY;
1375 if (ost->logfile && enc->stats_out) {
1376 fprintf(ost->logfile, "%s", enc->stats_out);
1377 }
1378 break;
1379 default:
1380 ret=-1;
1381 }
1382
1383 if(ret<=0)
1384 break;
1385 pkt.data= bit_buffer;
1386 pkt.size= ret;
1387 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1388 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1389 av_interleaved_write_frame(os, &pkt);
1390 }
1391 }
1392 }
1393 }
1394 }
1395
1396 return 0;
1397 fail_decode:
1398 return -1;
1399 }
1400
1401
1402 /*
1403 * The following code is the main loop of the file converter
1404 */
1405 static int av_encode(AVFormatContext **output_files,
1406 int nb_output_files,
1407 AVFormatContext **input_files,
1408 int nb_input_files,
1409 AVStreamMap *stream_maps, int nb_stream_maps)
1410 {
1411 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1412 AVFormatContext *is, *os;
1413 AVCodecContext *codec, *icodec;
1414 AVOutputStream *ost, **ost_table = NULL;
1415 AVInputStream *ist, **ist_table = NULL;
1416 AVInputFile *file_table;
1417 AVFormatContext *stream_no_data;
1418 int key;
1419
1420 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1421 if (!file_table)
1422 goto fail;
1423
1424 /* input stream init */
1425 j = 0;
1426 for(i=0;i<nb_input_files;i++) {
1427 is = input_files[i];
1428 file_table[i].ist_index = j;
1429 file_table[i].nb_streams = is->nb_streams;
1430 j += is->nb_streams;
1431 }
1432 nb_istreams = j;
1433
1434 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1435 if (!ist_table)
1436 goto fail;
1437
1438 for(i=0;i<nb_istreams;i++) {
1439 ist = av_mallocz(sizeof(AVInputStream));
1440 if (!ist)
1441 goto fail;
1442 ist_table[i] = ist;
1443 }
1444 j = 0;
1445 for(i=0;i<nb_input_files;i++) {
1446 is = input_files[i];
1447 for(k=0;k<is->nb_streams;k++) {
1448 ist = ist_table[j++];
1449 ist->st = is->streams[k];
1450 ist->file_index = i;
1451 ist->index = k;
1452 ist->discard = 1; /* the stream is discarded by default
1453 (changed later) */
1454
1455 if (ist->st->codec->rate_emu) {
1456 ist->start = av_gettime();
1457 ist->frame = 0;
1458 }
1459 }
1460 }
1461
1462 /* output stream init */
1463 nb_ostreams = 0;
1464 for(i=0;i<nb_output_files;i++) {
1465 os = output_files[i];
1466 nb_ostreams += os->nb_streams;
1467 }
1468 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1469 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1470 exit(1);
1471 }
1472
1473 /* Sanity check the mapping args -- do the input files & streams exist? */
1474 for(i=0;i<nb_stream_maps;i++) {
1475 int fi = stream_maps[i].file_index;
1476 int si = stream_maps[i].stream_index;
1477
1478 if (fi < 0 || fi > nb_input_files - 1 ||
1479 si < 0 || si > file_table[fi].nb_streams - 1) {
1480 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1481 exit(1);
1482 }
1483 fi = stream_maps[i].sync_file_index;
1484 si = stream_maps[i].sync_stream_index;
1485 if (fi < 0 || fi > nb_input_files - 1 ||
1486 si < 0 || si > file_table[fi].nb_streams - 1) {
1487 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1488 exit(1);
1489 }
1490 }
1491
1492 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1493 if (!ost_table)
1494 goto fail;
1495 for(i=0;i<nb_ostreams;i++) {
1496 ost = av_mallocz(sizeof(AVOutputStream));
1497 if (!ost)
1498 goto fail;
1499 ost_table[i] = ost;
1500 }
1501
1502 n = 0;
1503 for(k=0;k<nb_output_files;k++) {
1504 os = output_files[k];
1505 for(i=0;i<os->nb_streams;i++) {
1506 int found;
1507 ost = ost_table[n++];
1508 ost->file_index = k;
1509 ost->index = i;
1510 ost->st = os->streams[i];
1511 if (nb_stream_maps > 0) {
1512 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1513 stream_maps[n-1].stream_index;
1514
1515 /* Sanity check that the stream types match */
1516 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1517 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1518 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1519 ost->file_index, ost->index);
1520 exit(1);
1521 }
1522
1523 } else {
1524 /* get corresponding input stream index : we select the first one with the right type */
1525 found = 0;
1526 for(j=0;j<nb_istreams;j++) {
1527 ist = ist_table[j];
1528 if (ist->discard &&
1529 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1530 ost->source_index = j;
1531 found = 1;
1532 break;
1533 }
1534 }
1535
1536 if (!found) {
1537 /* try again and reuse existing stream */
1538 for(j=0;j<nb_istreams;j++) {
1539 ist = ist_table[j];
1540 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1541 ost->source_index = j;
1542 found = 1;
1543 }
1544 }
1545 if (!found) {
1546 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1547 ost->file_index, ost->index);
1548 exit(1);
1549 }
1550 }
1551 }
1552 ist = ist_table[ost->source_index];
1553 ist->discard = 0;
1554 ost->sync_ist = (nb_stream_maps > 0) ?
1555 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1556 stream_maps[n-1].sync_stream_index] : ist;
1557 }
1558 }
1559
1560 /* for each output stream, we compute the right encoding parameters */
1561 for(i=0;i<nb_ostreams;i++) {
1562 ost = ost_table[i];
1563 ist = ist_table[ost->source_index];
1564
1565 codec = ost->st->codec;
1566 icodec = ist->st->codec;
1567
1568 if (ost->st->stream_copy) {
1569 /* if stream_copy is selected, no need to decode or encode */
1570 codec->codec_id = icodec->codec_id;
1571 codec->codec_type = icodec->codec_type;
1572 if(!codec->codec_tag) codec->codec_tag = icodec->codec_tag;
1573 codec->bit_rate = icodec->bit_rate;
1574 codec->extradata= icodec->extradata;
1575 codec->extradata_size= icodec->extradata_size;
1576 codec->time_base = icodec->time_base;
1577 switch(codec->codec_type) {
1578 case CODEC_TYPE_AUDIO:
1579 codec->sample_rate = icodec->sample_rate;
1580 codec->channels = icodec->channels;
1581 codec->frame_size = icodec->frame_size;
1582 codec->block_align= icodec->block_align;
1583 break;
1584 case CODEC_TYPE_VIDEO:
1585 codec->pix_fmt = icodec->pix_fmt;
1586 codec->width = icodec->width;
1587 codec->height = icodec->height;
1588 codec->has_b_frames = icodec->has_b_frames;
1589 break;
1590 case CODEC_TYPE_SUBTITLE:
1591 break;
1592 default:
1593 av_abort();
1594 }
1595 } else {
1596 switch(codec->codec_type) {
1597 case CODEC_TYPE_AUDIO:
1598 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1599 goto fail;
1600
1601 if (codec->channels == icodec->channels &&
1602 codec->sample_rate == icodec->sample_rate) {
1603 ost->audio_resample = 0;
1604 } else {
1605 if (codec->channels != icodec->channels &&
1606 (icodec->codec_id == CODEC_ID_AC3 ||
1607 icodec->codec_id == CODEC_ID_DTS)) {
1608 /* Special case for 5:1 AC3 and DTS input */
1609 /* and mono or stereo output */
1610 /* Request specific number of channels */
1611 icodec->channels = codec->channels;
1612 if (codec->sample_rate == icodec->sample_rate)
1613 ost->audio_resample = 0;
1614 else {
1615 ost->audio_resample = 1;
1616 }
1617 } else {
1618 ost->audio_resample = 1;
1619 }
1620 }
1621 if(audio_sync_method>1)
1622 ost->audio_resample = 1;
1623
1624 if(ost->audio_resample){
1625 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1626 codec->sample_rate, icodec->sample_rate);
1627 if(!ost->resample){
1628 printf("Can't resample. Aborting.\n");
1629 av_abort();
1630 }
1631 }
1632 ist->decoding_needed = 1;
1633 ost->encoding_needed = 1;
1634 break;
1635 case CODEC_TYPE_VIDEO:
1636 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1637 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1638 ost->video_resample = ((codec->width != icodec->width -
1639 (frame_leftBand + frame_rightBand) +
1640 (frame_padleft + frame_padright)) ||
1641 (codec->height != icodec->height -
1642 (frame_topBand + frame_bottomBand) +
1643 (frame_padtop + frame_padbottom)));
1644 if (ost->video_crop) {
1645 ost->topBand = frame_topBand;
1646 ost->leftBand = frame_leftBand;
1647 }
1648 if (ost->video_pad) {
1649 ost->padtop = frame_padtop;
1650 ost->padleft = frame_padleft;
1651 ost->padbottom = frame_padbottom;
1652 ost->padright = frame_padright;
1653 if (!ost->video_resample) {
1654 avcodec_get_frame_defaults(&ost->pict_tmp);
1655 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1656 codec->width, codec->height ) )
1657 goto fail;
1658 }
1659 }
1660 if (ost->video_resample) {
1661 avcodec_get_frame_defaults(&ost->pict_tmp);
1662 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1663 codec->width, codec->height ) )
1664 goto fail;
1665
1666 ost->img_resample_ctx = img_resample_init(
1667 codec->width - (frame_padleft + frame_padright),
1668 codec->height - (frame_padtop + frame_padbottom),
1669 icodec->width - (frame_leftBand + frame_rightBand),
1670 icodec->height - (frame_topBand + frame_bottomBand));
1671
1672 }
1673 ost->encoding_needed = 1;
1674 ist->decoding_needed = 1;
1675 break;
1676 case CODEC_TYPE_SUBTITLE:
1677 ost->encoding_needed = 1;
1678 ist->decoding_needed = 1;
1679 break;
1680 default:
1681 av_abort();
1682 break;
1683 }
1684 /* two pass mode */
1685 if (ost->encoding_needed &&
1686 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1687 char logfilename[1024];
1688 FILE *f;
1689 int size;
1690 char *logbuffer;
1691
1692 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1693 pass_logfilename ?
1694 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1695 if (codec->flags & CODEC_FLAG_PASS1) {
1696 f = fopen(logfilename, "w");
1697 if (!f) {
1698 perror(logfilename);
1699 exit(1);
1700 }
1701 ost->logfile = f;
1702 } else {
1703 /* read the log file */
1704 f = fopen(logfilename, "r");
1705 if (!f) {
1706 perror(logfilename);
1707 exit(1);
1708 }
1709 fseek(f, 0, SEEK_END);
1710 size = ftell(f);
1711 fseek(f, 0, SEEK_SET);
1712 logbuffer = av_malloc(size + 1);
1713 if (!logbuffer) {
1714 fprintf(stderr, "Could not allocate log buffer\n");
1715 exit(1);
1716 }
1717 size = fread(logbuffer, 1, size, f);
1718 fclose(f);
1719 logbuffer[size] = '\0';
1720 codec->stats_in = logbuffer;
1721 }
1722 }
1723 }
1724 if(codec->codec_type == CODEC_TYPE_VIDEO){
1725 int size= codec->width * codec->height;
1726 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1727 }
1728 }
1729
1730 if (!bit_buffer)
1731 bit_buffer = av_malloc(bit_buffer_size);
1732 if (!bit_buffer)
1733 goto fail;
1734
1735 /* dump the file output parameters - cannot be done before in case
1736 of stream copy */
1737 for(i=0;i<nb_output_files;i++) {
1738 dump_format(output_files[i], i, output_files[i]->filename, 1);
1739 }
1740
1741 /* dump the stream mapping */
1742 if (verbose >= 0) {
1743 fprintf(stderr, "Stream mapping:\n");
1744 for(i=0;i<nb_ostreams;i++) {
1745 ost = ost_table[i];
1746 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1747 ist_table[ost->source_index]->file_index,
1748 ist_table[ost->source_index]->index,
1749 ost->file_index,
1750 ost->index);
1751 if (ost->sync_ist != ist_table[ost->source_index])
1752 fprintf(stderr, " [sync #%d.%d]",
1753 ost->sync_ist->file_index,
1754 ost->sync_ist->index);
1755 fprintf(stderr, "\n");
1756 }
1757 }
1758
1759 /* open each encoder */
1760 for(i=0;i<nb_ostreams;i++) {
1761 ost = ost_table[i];
1762 if (ost->encoding_needed) {
1763 AVCodec *codec;
1764 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1765 if (!codec) {
1766 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1767 ost->file_index, ost->index);
1768 exit(1);
1769 }
1770 if (avcodec_open(ost->st->codec, codec) < 0) {
1771 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1772 ost->file_index, ost->index);
1773 exit(1);
1774 }
1775 extra_size += ost->st->codec->extradata_size;
1776 }
1777 }
1778
1779 /* open each decoder */
1780 for(i=0;i<nb_istreams;i++) {
1781 ist = ist_table[i];
1782 if (ist->decoding_needed) {
1783 AVCodec *codec;
1784 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1785 if (!codec) {
1786 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1787 ist->st->codec->codec_id, ist->file_index, ist->index);
1788 exit(1);
1789 }
1790 if (avcodec_open(ist->st->codec, codec) < 0) {
1791 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1792 ist->file_index, ist->index);
1793 exit(1);
1794 }
1795 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1796 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1797 }
1798 }
1799
1800 /* init pts */
1801 for(i=0;i<nb_istreams;i++) {
1802 ist = ist_table[i];
1803 is = input_files[ist->file_index];
1804 ist->pts = 0;
1805 ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1806 if(ist->st->start_time == AV_NOPTS_VALUE)
1807 ist->next_pts=0;
1808 if(input_files_ts_offset[ist->file_index])
1809 ist->next_pts= AV_NOPTS_VALUE;
1810 ist->is_start = 1;
1811 }
1812
1813 /* compute buffer size max (should use a complete heuristic) */
1814 for(i=0;i<nb_input_files;i++) {
1815 file_table[i].buffer_size_max = 2048;
1816 }
1817
1818 /* set meta data information from input file if required */
1819 for (i=0;i<nb_meta_data_maps;i++) {
1820 AVFormatContext *out_file;
1821 AVFormatContext *in_file;
1822
1823 int out_file_index = meta_data_maps[i].out_file;
1824 int in_file_index = meta_data_maps[i].in_file;
1825 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1826 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1827 ret = -EINVAL;
1828 goto fail;
1829 }
1830 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1831 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1832 ret = -EINVAL;
1833 goto fail;
1834 }
1835
1836 out_file = output_files[out_file_index];
1837 in_file = input_files[in_file_index];
1838
1839 strcpy(out_file->title, in_file->title);
1840 strcpy(out_file->author, in_file->author);
1841 strcpy(out_file->copyright, in_file->copyright);
1842 strcpy(out_file->comment, in_file->comment);
1843 strcpy(out_file->album, in_file->album);
1844 out_file->year = in_file->year;
1845 out_file->track = in_file->track;
1846 strcpy(out_file->genre, in_file->genre);
1847 }
1848
1849 /* open files and write file headers */
1850 for(i=0;i<nb_output_files;i++) {
1851 os = output_files[i];
1852 if (av_write_header(os) < 0) {
1853 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1854 ret = -EINVAL;
1855 goto fail;
1856 }
1857 }
1858
1859 #ifndef CONFIG_WIN32
1860 if ( !using_stdin && verbose >= 0) {
1861 fprintf(stderr, "Press [q] to stop encoding\n");
1862 url_set_interrupt_cb(decode_interrupt_cb);
1863 }
1864 #endif
1865 term_init();
1866
1867 stream_no_data = 0;
1868 key = -1;
1869
1870 for(; received_sigterm == 0;) {
1871 int file_index, ist_index;
1872 AVPacket pkt;
1873 double ipts_min;
1874 double opts_min;
1875
1876 redo:
1877 ipts_min= 1e100;
1878 opts_min= 1e100;
1879 /* if 'q' pressed, exits */
1880 if (!using_stdin) {
1881 if (q_pressed)
1882 break;
1883 /* read_key() returns 0 on EOF */
1884 key = read_key();
1885 if (key == 'q')
1886 break;
1887 }
1888
1889 /* select the stream that we must read now by looking at the
1890 smallest output pts */
1891 file_index = -1;
1892 for(i=0;i<nb_ostreams;i++) {
1893 double ipts, opts;
1894 ost = ost_table[i];
1895 os = output_files[ost->file_index];
1896 ist = ist_table[ost->source_index];
1897 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1898 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
1899 else
1900 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
1901 ipts = (double)ist->pts;
1902 if (!file_table[ist->file_index].eof_reached){
1903 if(ipts < ipts_min) {
1904 ipts_min = ipts;
1905 if(input_sync ) file_index = ist->file_index;
1906 }
1907 if(opts < opts_min) {
1908 opts_min = opts;
1909 if(!input_sync) file_index = ist->file_index;
1910 }
1911 }
1912 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
1913 file_index= -1;
1914 break;
1915 }
1916 }
1917 /* if none, if is finished */
1918 if (file_index < 0) {
1919 break;
1920 }
1921
1922 /* finish if recording time exhausted */
1923 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
1924 break;
1925
1926 /* finish if limit size exhausted */
1927 if (limit_filesize != 0 && (limit_filesize * 1024) < url_ftell(&output_files[0]->pb))
1928 break;
1929
1930 /* read a frame from it and output it in the fifo */
1931 is = input_files[file_index];
1932 if (av_read_frame(is, &pkt) < 0) {
1933 file_table[file_index].eof_reached = 1;
1934 if (opt_shortest) break; else continue; //
1935 }
1936
1937 if (!pkt.size) {
1938 stream_no_data = is;
1939 } else {
1940 stream_no_data = 0;
1941 }
1942 if (do_pkt_dump) {
1943 av_pkt_dump(stdout, &pkt, do_hex_dump);
1944 }
1945 /* the following test is needed in case new streams appear
1946 dynamically in stream : we ignore them */
1947 if (pkt.stream_index >= file_table[file_index].nb_streams)
1948 goto discard_packet;
1949 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1950 ist = ist_table[ist_index];
1951 if (ist->discard)
1952 goto discard_packet;
1953
1954 // fprintf(stderr, "next:%lld dts:%lld off:%lld %d\n", ist->next_pts, pkt.dts, input_files_ts_offset[ist->file_index], ist->st->codec->codec_type);
1955 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
1956 int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
1957 if(ABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE && !copy_ts){
1958 input_files_ts_offset[ist->file_index]-= delta;
1959 if (verbose > 2)
1960 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
1961 for(i=0; i<file_table[file_index].nb_streams; i++){
1962 int index= file_table[file_index].ist_index + i;
1963 ist_table[index]->next_pts += delta;
1964 ist_table[index]->is_start=1;
1965 }
1966 }
1967 }
1968
1969 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1970 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1971
1972 if (verbose >= 0)
1973 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1974 ist->file_index, ist->index);
1975
1976 av_free_packet(&pkt);
1977 goto redo;
1978 }
1979
1980 discard_packet:
1981 av_free_packet(&pkt);
1982
1983 /* dump report by using the output first video and audio streams */
1984 print_report(output_files, ost_table, nb_ostreams, 0);
1985 }
1986
1987 /* at the end of stream, we must flush the decoder buffers */
1988 for(i=0;i<nb_istreams;i++) {
1989 ist = ist_table[i];
1990 if (ist->decoding_needed) {
1991 output_packet(ist, i, ost_table, nb_ostreams, NULL);
1992 }
1993 }
1994
1995 term_exit();
1996
1997 /* write the trailer if needed and close file */
1998 for(i=0;i<nb_output_files;i++) {
1999 os = output_files[i];
2000 av_write_trailer(os);
2001 }
2002
2003 /* dump report by using the first video and audio streams */
2004 print_report(output_files, ost_table, nb_ostreams, 1);
2005
2006 /* close each encoder */
2007 for(i=0;i<nb_ostreams;i++) {
2008 ost = ost_table[i];
2009 if (ost->encoding_needed) {
2010 av_freep(&ost->st->codec->stats_in);
2011 avcodec_close(ost->st->codec);
2012 }
2013 }
2014
2015 /* close each decoder */
2016 for(i=0;i<nb_istreams;i++) {
2017 ist = ist_table[i];
2018 if (ist->decoding_needed) {
2019 avcodec_close(ist->st->codec);
2020 }
2021 }
2022
2023 /* finished ! */
2024
2025 ret = 0;
2026 fail1:
2027 av_freep(&bit_buffer);
2028 av_free(file_table);
2029
2030 if (ist_table) {
2031 for(i=0;i<nb_istreams;i++) {
2032 ist = ist_table[i];
2033 av_free(ist);
2034 }
2035 av_free(ist_table);
2036 }
2037 if (ost_table) {
2038 for(i=0;i<nb_ostreams;i++) {
2039 ost = ost_table[i];
2040 if (ost) {
2041 if (ost->logfile) {
2042 fclose(ost->logfile);
2043 ost->logfile = NULL;
2044 }
2045 fifo_free(&ost->fifo); /* works even if fifo is not
2046 initialized but set to zero */
2047 av_free(ost->pict_tmp.data[0]);
2048 if (ost->video_resample)
2049 img_resample_close(ost->img_resample_ctx);
2050 if (ost->audio_resample)
2051 audio_resample_close(ost->resample);
2052 av_free(ost);
2053 }
2054 }
2055 av_free(ost_table);
2056 }
2057 return ret;
2058 fail:
2059 ret = -ENOMEM;
2060 goto fail1;
2061 }
2062
2063 #if 0
2064 int file_read(const char *filename)
2065 {
2066 URLContext *h;
2067 unsigned char buffer[1024];
2068 int len, i;
2069
2070 if (url_open(&h, filename, O_RDONLY) < 0) {
2071 printf("could not open '%s'\n", filename);
2072 return -1;
2073 }
2074 for(;;) {
2075 len = url_read(h, buffer, sizeof(buffer));
2076 if (len <= 0)
2077 break;
2078 for(i=0;i<len;i++) putchar(buffer[i]);
2079 }
2080 url_close(h);
2081 return 0;
2082 }
2083 #endif
2084
2085 static void opt_image_format(const char *arg)
2086 {
2087 AVImageFormat *f;
2088
2089 for(f = first_image_format; f != NULL; f = f->next) {
2090 if (!strcmp(arg, f->name))
2091 break;
2092 }
2093 if (!f) {
2094 fprintf(stderr, "Unknown image format: '%s'\n", arg);
2095 exit(1);
2096 }
2097 image_format = f;
2098 }
2099
2100 static void opt_format(const char *arg)
2101 {
2102 /* compatibility stuff for pgmyuv */
2103 if (!strcmp(arg, "pgmyuv")) {
2104 pgmyuv_compatibility_hack=1;
2105 // opt_image_format(arg);
2106 arg = "image2";
2107 }
2108
2109 file_iformat = av_find_input_format(arg);
2110 file_oformat = guess_format(arg, NULL, NULL);
2111 if (!file_iformat && !file_oformat) {
2112 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2113 exit(1);
2114 }
2115 }
2116
2117 static void opt_video_bitrate(const char *arg)
2118 {
2119 video_bit_rate = atoi(arg) * 1000;
2120 }
2121
2122 static void opt_video_bitrate_tolerance(const char *arg)
2123 {
2124 video_bit_rate_tolerance = atoi(arg) * 1000;
2125 }
2126
2127 static void opt_video_bitrate_max(const char *arg)
2128 {
2129 video_rc_max_rate = atoi(arg) * 1000;
2130 }
2131
2132 static void opt_video_bitrate_min(const char *arg)
2133 {
2134 video_rc_min_rate = atoi(arg) * 1000;
2135 }
2136
2137 static void opt_video_buffer_size(const char *arg)
2138 {
2139 video_rc_buffer_size = atoi(arg) * 8*1024;
2140 }
2141
2142 static void opt_video_rc_eq(char *arg)
2143 {
2144 video_rc_eq = arg;
2145 }
2146
2147 static void opt_video_rc_override_string(char *arg)
2148 {
2149 video_rc_override_string = arg;
2150 }
2151
2152
2153 static void opt_workaround_bugs(const char *arg)
2154 {
2155 workaround_bugs = atoi(arg);
2156 }
2157
2158 static void opt_me_threshold(const char *arg)
2159 {
2160 me_threshold = atoi(arg);
2161 }
2162
2163 static void opt_mb_threshold(const char *arg)
2164 {
2165 mb_threshold = atoi(arg);
2166 }
2167
2168 static void opt_verbose(const char *arg)
2169 {
2170 verbose = atoi(arg);
2171 av_log_set_level(atoi(arg));
2172 }
2173
2174 static void opt_frame_rate(const char *arg)
2175 {
2176 if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
2177 fprintf(stderr, "Incorrect frame rate\n");
2178 exit(1);
2179 }
2180 }
2181
2182 static void opt_frame_crop_top(const char *arg)
2183 {
2184 frame_topBand = atoi(arg);
2185 if (frame_topBand < 0) {
2186 fprintf(stderr, "Incorrect top crop size\n");
2187 exit(1);
2188 }
2189 if ((frame_topBand % 2) != 0) {
2190 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2191 exit(1);
2192 }
2193 if ((frame_topBand) >= frame_height){
2194 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2195 exit(1);
2196 }
2197 frame_height -= frame_topBand;
2198 }
2199
2200 static void opt_frame_crop_bottom(const char *arg)
2201 {
2202 frame_bottomBand = atoi(arg);
2203 if (frame_bottomBand < 0) {
2204 fprintf(stderr, "Incorrect bottom crop size\n");
2205 exit(1);
2206 }
2207 if ((frame_bottomBand % 2) != 0) {
2208 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2209 exit(1);
2210 }
2211 if ((frame_bottomBand) >= frame_height){
2212 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2213 exit(1);
2214 }
2215 frame_height -= frame_bottomBand;
2216 }
2217
2218 static void opt_frame_crop_left(const char *arg)
2219 {
2220 frame_leftBand = atoi(arg);
2221 if (frame_leftBand < 0) {
2222 fprintf(stderr, "Incorrect left crop size\n");
2223 exit(1);
2224 }
2225 if ((frame_leftBand % 2) != 0) {
2226 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2227 exit(1);
2228 }
2229 if ((frame_leftBand) >= frame_width){
2230 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2231 exit(1);
2232 }
2233 frame_width -= frame_leftBand;
2234 }
2235
2236 static void opt_frame_crop_right(const char *arg)
2237 {
2238 frame_rightBand = atoi(arg);
2239 if (frame_rightBand < 0) {
2240 fprintf(stderr, "Incorrect right crop size\n");
2241 exit(1);
2242 }
2243 if ((frame_rightBand % 2) != 0) {
2244 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2245 exit(1);
2246 }
2247 if ((frame_rightBand) >= frame_width){
2248 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2249 exit(1);
2250 }
2251 frame_width -= frame_rightBand;
2252 }
2253
2254 static void opt_frame_size(const char *arg)
2255 {
2256 if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
2257 fprintf(stderr, "Incorrect frame size\n");
2258 exit(1);
2259 }
2260 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2261 fprintf(stderr, "Frame size must be a multiple of 2\n");
2262 exit(1);
2263 }
2264 }
2265
2266
2267 #define SCALEBITS 10
2268 #define ONE_HALF (1 << (SCALEBITS - 1))
2269 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2270
2271 #define RGB_TO_Y(r, g, b) \
2272 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2273 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2274
2275 #define RGB_TO_U(r1, g1, b1, shift)\
2276 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2277 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2278
2279 #define RGB_TO_V(r1, g1, b1, shift)\
2280 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2281 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2282
2283 static void opt_pad_color(const char *arg) {
2284 /* Input is expected to be six hex digits similar to
2285 how colors are expressed in html tags (but without the #) */
2286 int rgb = strtol(arg, NULL, 16);
2287 int r,g,b;
2288
2289 r = (rgb >> 16);
2290 g = ((rgb >> 8) & 255);
2291 b = (rgb & 255);
2292
2293 padcolor[0] = RGB_TO_Y(r,g,b);
2294 padcolor[1] = RGB_TO_U(r,g,b,0);
2295 padcolor[2] = RGB_TO_V(r,g,b,0);
2296 }
2297
2298 static void opt_frame_pad_top(const char *arg)
2299 {
2300 frame_padtop = atoi(arg);
2301 if (frame_padtop < 0) {
2302 fprintf(stderr, "Incorrect top pad size\n");
2303 exit(1);
2304 }
2305 if ((frame_padtop % 2) != 0) {
2306 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2307 exit(1);
2308 }
2309 }
2310
2311 static void opt_frame_pad_bottom(const char *arg)
2312 {
2313 frame_padbottom = atoi(arg);
2314 if (frame_padbottom < 0) {
2315 fprintf(stderr, "Incorrect bottom pad size\n");
2316 exit(1);
2317 }
2318 if ((frame_padbottom % 2) != 0) {
2319 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2320 exit(1);
2321 }
2322 }
2323
2324
2325 static void opt_frame_pad_left(const char *arg)
2326 {
2327 frame_padleft = atoi(arg);
2328 if (frame_padleft < 0) {
2329 fprintf(stderr, "Incorrect left pad size\n");
2330 exit(1);
2331 }
2332 if ((frame_padleft % 2) != 0) {
2333 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2334 exit(1);
2335 }
2336 }
2337
2338
2339 static void opt_frame_pad_right(const char *arg)
2340 {
2341 frame_padright = atoi(arg);
2342 if (frame_padright < 0) {
2343 fprintf(stderr, "Incorrect right pad size\n");
2344 exit(1);
2345 }
2346 if ((frame_padright % 2) != 0) {
2347 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2348 exit(1);
2349 }
2350 }
2351
2352
2353 static void opt_frame_pix_fmt(const char *arg)
2354 {
2355 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2356 }
2357
2358 static void opt_frame_aspect_ratio(const char *arg)
2359 {
2360 int x = 0, y = 0;
2361 double ar = 0;
2362 const char *p;
2363
2364 p = strchr(arg, ':');
2365 if (p) {
2366 x = strtol(arg, (char **)&arg, 10);
2367 if (arg == p)
2368 y = strtol(arg+1, (char **)&arg, 10);
2369 if (x > 0 && y > 0)
2370 ar = (double)x / (double)y;
2371 } else
2372 ar = strtod(arg, (char **)&arg);
2373
2374 if (!ar) {
2375 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2376 exit(1);
2377 }
2378 frame_aspect_ratio = ar;
2379 }
2380
2381 static void opt_gop_size(const char *arg)
2382 {
2383 gop_size = atoi(arg);
2384 }
2385
2386 static void opt_b_frames(const char *arg)
2387 {
2388 b_frames = atoi(arg);
2389 if (b_frames > FF_MAX_B_FRAMES) {
2390 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
2391 exit(1);
2392 } else if (b_frames < 1) {
2393 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
2394 exit(1);
2395 }
2396 }
2397
2398 static void opt_pre_me(const char *arg)
2399 {
2400 pre_me = atoi(arg);
2401 }
2402
2403 static void opt_qscale(const char *arg)
2404 {
2405 video_qscale = atof(arg);
2406 if (video_qscale <= 0 ||
2407 video_qscale > 255) {
2408 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2409 exit(1);
2410 }
2411 }
2412
2413 static void opt_qsquish(const char *arg)
2414 {
2415 video_qsquish = atof(arg);
2416 if (video_qsquish < 0.0 ||
2417 video_qsquish > 99.0) {
2418 fprintf(stderr, "qsquish must be >= 0.0 and <= 99.0\n");
2419 exit(1);
2420 }
2421 }
2422
2423 static void opt_lmax(const char *arg)
2424 {
2425 video_lmax = atof(arg)*FF_QP2LAMBDA;
2426 }
2427
2428 static void opt_lmin(const char *arg)
2429 {
2430 video_lmin = atof(arg)*FF_QP2LAMBDA;
2431 }
2432
2433 static void opt_qmin(const char *arg)
2434 {
2435 video_qmin = atoi(arg);
2436 if (video_qmin < 1 ||
2437 video_qmin > 51) {
2438 fprintf(stderr, "qmin must be >= 1 and <= 51\n");
2439 exit(1);
2440 }
2441 }
2442
2443 static void opt_qmax(const char *arg)
2444 {
2445 video_qmax = atoi(arg);
2446 if (video_qmax < 1 ||
2447 video_qmax > 51) {
2448 fprintf(stderr, "qmax must be >= 1 and <= 51\n");
2449 exit(1);
2450 }
2451 }
2452
2453 static void opt_mb_lmin(const char *arg)
2454 {
2455 video_mb_lmin = atof(arg)*FF_QP2LAMBDA;
2456 if (video_mb_lmin < 1 ||
2457 video_mb_lmin > FF_LAMBDA_MAX) {
2458 fprintf(stderr, "mblmin must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2459 exit(1);
2460 }
2461 }
2462
2463 static void opt_mb_lmax(const char *arg)
2464 {
2465 video_mb_lmax = atof(arg)*FF_QP2LAMBDA;
2466 if (video_mb_lmax < 1 ||
2467 video_mb_lmax > FF_LAMBDA_MAX) {
2468 fprintf(stderr, "mblmax must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2469 exit(1);
2470 }
2471 }
2472
2473 static void opt_qdiff(const char *arg)
2474 {
2475 video_qdiff = atoi(arg);
2476 if (video_qdiff < 0 ||
2477 video_qdiff > 31) {
2478 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2479 exit(1);
2480 }
2481 }
2482
2483 static void opt_qblur(const char *arg)
2484 {
2485 video_qblur = atof(arg);
2486 }
2487
2488 static void opt_qcomp(const char *arg)
2489 {
2490 video_qcomp = atof(arg);
2491 }
2492
2493 static void opt_rc_initial_cplx(const char *arg)
2494 {
2495 video_rc_initial_cplx = atof(arg);
2496 }
2497 static void opt_b_qfactor(const char *arg)
2498 {
2499 video_b_qfactor = atof(arg);
2500 }
2501 static void opt_i_qfactor(const char *arg)
2502 {
2503 video_i_qfactor = atof(arg);
2504 }
2505 static void opt_b_qoffset(const char *arg)
2506 {
2507 video_b_qoffset = atof(arg);
2508 }
2509 static void opt_i_qoffset(const char *arg)
2510 {
2511 video_i_qoffset = atof(arg);
2512 }
2513
2514 static void opt_ibias(const char *arg)
2515 {
2516 video_intra_quant_bias = atoi(arg);
2517 }
2518 static void opt_pbias(const char *arg)
2519 {
2520 video_inter_quant_bias = atoi(arg);
2521 }
2522
2523 static void opt_packet_size(const char *arg)
2524 {
2525 packet_size= atoi(arg);
2526 }
2527
2528 static void opt_error_rate(const char *arg)
2529 {
2530 error_rate= atoi(arg);
2531 }
2532
2533 static void opt_strict(const char *arg)
2534 {
2535 strict= atoi(arg);
2536 }
2537
2538 static void opt_top_field_first(const char *arg)
2539 {
2540 top_field_first= atoi(arg);
2541 }
2542
2543 static void opt_sc_threshold(const char *arg)
2544 {
2545 sc_threshold= atoi(arg);
2546 }
2547
2548 static void opt_me_range(const char *arg)
2549 {
2550 me_range = atoi(arg);
2551 }
2552
2553 static void opt_thread_count(const char *arg)
2554 {
2555 thread_count= atoi(arg);
2556 #if !defined(HAVE_THREADS)
2557 if (verbose >= 0)
2558 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2559 #endif
2560 }
2561
2562 static void opt_audio_bitrate(const char *arg)
2563 {
2564 audio_bit_rate = atoi(arg) * 1000;
2565 }
2566
2567 static void opt_audio_rate(const char *arg)
2568 {
2569 audio_sample_rate = atoi(arg);
2570 }
2571
2572 static void opt_audio_channels(const char *arg)
2573 {
2574 audio_channels = atoi(arg);
2575 }
2576
2577 static void opt_video_device(const char *arg)
2578 {
2579 video_device = av_strdup(arg);
2580 }
2581
2582 static void opt_grab_device(const char *arg)
2583 {
2584 grab_device = av_strdup(arg);
2585 }
2586
2587 static void opt_video_channel(const char *arg)
2588 {
2589 video_channel = strtol(arg, NULL, 0);
2590 }
2591
2592 static void opt_video_standard(const char *arg)
2593 {
2594 video_standard = av_strdup(arg);
2595 }
2596
2597 static void opt_audio_device(const char *arg)
2598 {
2599 audio_device = av_strdup(arg);
2600 }
2601
2602 static void opt_codec(int *pstream_copy, int *pcodec_id,
2603 int codec_type, const char *arg)
2604 {
2605 AVCodec *p;
2606
2607 if (!strcmp(arg, "copy")) {
2608 *pstream_copy = 1;
2609 } else {
2610 p = first_avcodec;
2611 while (p) {
2612 if (!strcmp(p->name, arg) && p->type == codec_type)
2613 break;
2614 p = p->next;
2615 }
2616 if (p == NULL) {
2617 fprintf(stderr, "Unknown codec '%s'\n", arg);
2618 exit(1);
2619 } else {
2620 *pcodec_id = p->id;
2621 }
2622 }
2623 }
2624
2625 static void opt_audio_codec(const char *arg)
2626 {
2627 opt_codec(&audio_stream_copy, &audio_codec_id, CODEC_TYPE_AUDIO, arg);
2628 }
2629
2630 static void opt_audio_tag(const char *arg)
2631 {
2632 char *tail;
2633 audio_codec_tag= strtol(arg, &tail, 0);
2634
2635 if(!tail || *tail)
2636 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2637 }
2638
2639 static void opt_video_tag(const char *arg)
2640 {
2641 char *tail;
2642 video_codec_tag= strtol(arg, &tail, 0);
2643
2644 if(!tail || *tail)
2645 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2646 }
2647
2648 static void add_frame_hooker(const char *arg)
2649 {
2650 int argc = 0;
2651 char *argv[64];
2652 int i;
2653 char *args = av_strdup(arg);
2654
2655 using_vhook = 1;
2656
2657 argv[0] = strtok(args, " ");
2658 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2659 }
2660
2661 i = frame_hook_add(argc, argv);
2662
2663 if (i != 0) {
2664 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2665 exit(1);
2666 }
2667 }
2668
2669 const char *motion_str[] = {
2670 "zero",
2671 "full",
2672 "log",
2673 "phods",
2674 "epzs",
2675 "x1",
2676 "hex",
2677 "umh",
2678 "iter",
2679 NULL,
2680 };
2681
2682 static void opt_motion_estimation(const char *arg)
2683 {
2684 const char **p;
2685 p = motion_str;
2686 for(;;) {
2687 if (!*p) {
2688 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2689 exit(1);
2690 }
2691 if (!strcmp(*p, arg))
2692 break;
2693 p++;
2694 }
2695 me_method = (p - motion_str) + 1;
2696 }
2697
2698 static void opt_video_codec(const char *arg)
2699 {
2700 opt_codec(&video_stream_copy, &video_codec_id, CODEC_TYPE_VIDEO, arg);
2701 }
2702
2703 static void opt_subtitle_codec(const char *arg)
2704 {
2705 opt_codec(&subtitle_stream_copy, &subtitle_codec_id, CODEC_TYPE_SUBTITLE, arg);
2706 }
2707
2708 static void opt_map(const char *arg)
2709 {
2710 AVStreamMap *m;
2711 const char *p;
2712
2713 p = arg;
2714 m = &stream_maps[nb_stream_maps++];
2715
2716 m->file_index = strtol(arg, (char **)&p, 0);
2717 if (*p)
2718 p++;
2719
2720 m->stream_index = strtol(p, (char **)&p, 0);
2721 if (*p) {
2722 p++;
2723 m->sync_file_index = strtol(p, (char **)&p, 0);
2724 if (*p)
2725 p++;
2726 m->sync_stream_index = strtol(p, (char **)&p, 0);
2727 } else {
2728 m->sync_file_index = m->file_index;
2729 m->sync_stream_index = m->stream_index;
2730 }
2731 }
2732
2733 static void opt_map_meta_data(const char *arg)
2734 {
2735 AVMetaDataMap *m;
2736 const char *p;
2737
2738 p = arg;
2739 m = &meta_data_maps[nb_meta_data_maps++];
2740
2741 m->out_file = strtol(arg, (char **)&p, 0);
2742 if (*p)
2743 p++;
2744
2745 m->in_file = strtol(p, (char **)&p, 0);
2746 }
2747
2748 static void opt_recording_time(const char *arg)
2749 {
2750 recording_time = parse_date(arg, 1);
2751 }
2752
2753 static void opt_start_time(const char *arg)
2754 {
2755 start_time = parse_date(arg, 1);
2756 }
2757
2758 static void opt_rec_timestamp(const char *arg)
2759 {
2760 rec_timestamp = parse_date(arg, 0) / 1000000;
2761 }
2762
2763 static void opt_input_ts_offset(const char *arg)
2764 {
2765 input_ts_offset = parse_date(arg, 1);
2766 }
2767
2768 static void opt_input_file(const char *filename)
2769 {
2770 AVFormatContext *ic;
2771 AVFormatParameters params, *ap = &params;
2772 int err, i, ret, rfps, rfps_base;
2773 int64_t timestamp;
2774
2775 if (!strcmp(filename, "-"))
2776 filename = "pipe:";
2777
2778 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2779 !strcmp( filename, "/dev/stdin" );
2780
2781 /* get default parameters from command line */
2782 memset(ap, 0, sizeof(*ap));
2783 ap->sample_rate = audio_sample_rate;
2784 ap->channels = audio_channels;
2785 ap->time_base.den = frame_rate;
2786 ap->time_base.num = frame_rate_base;
2787 ap->width = frame_width + frame_padleft + frame_padright;
2788 ap->height = frame_height + frame_padtop + frame_padbottom;
2789 ap->image_format = image_format;
2790 ap->pix_fmt = frame_pix_fmt;
2791 ap->device = grab_device;
2792 ap->channel = video_channel;
2793 ap->standard = video_standard;
2794 ap->video_codec_id = video_codec_id;
2795 ap->audio_codec_id = audio_codec_id;
2796 if(pgmyuv_compatibility_hack)
2797 ap->video_codec_id= CODEC_ID_PGMYUV;
2798
2799 /* open the input file with generic libav function */
2800 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2801 if (err < 0) {
2802 print_error(filename, err);
2803 exit(1);
2804 }
2805
2806 if(genpts)
2807 ic->flags|= AVFMT_FLAG_GENPTS;
2808
2809 /* If not enough info to get the stream parameters, we decode the
2810 first frames to get it. (used in mpeg case for example) */
2811 ret = av_find_stream_info(ic);
2812 if (ret < 0 && verbose >= 0) {
2813 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2814 exit(1);
2815 }
2816
2817 timestamp = start_time;
2818 /* add the stream start time */
2819 if (ic->start_time != AV_NOPTS_VALUE)
2820 timestamp += ic->start_time;
2821
2822 /* if seeking requested, we execute it */
2823 if (start_time != 0) {
2824 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2825 if (ret < 0) {
2826 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2827 filename, (double)timestamp / AV_TIME_BASE);
2828 }
2829 /* reset seek info */
2830 start_time = 0;
2831 }
2832
2833 /* update the current parameters so that they match the one of the input stream */
2834 for(i=0;i<ic->nb_streams;i++) {
2835 int j;
2836 AVCodecContext *enc = ic->streams[i]->codec;
2837 #if defined(HAVE_THREADS)
2838 if(thread_count>1)
2839 avcodec_thread_init(enc, thread_count);
2840 #endif
2841 enc->thread_count= thread_count;
2842 switch(enc->codec_type) {
2843 case CODEC_TYPE_AUDIO:
2844 for(j=0; j<opt_name_count; j++){
2845 AVOption *opt;
2846 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2847 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2848 av_set_double(enc, opt_names[j], d);
2849 }
2850 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2851 audio_channels = enc->channels;
2852 audio_sample_rate = enc->sample_rate;
2853 if(audio_disable)
2854 ic->streams[i]->discard= AVDISCARD_ALL;
2855 break;
2856 case CODEC_TYPE_VIDEO:
2857 for(j=0; j<opt_name_count; j++){
2858 AVOption *opt;
2859 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2860 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2861 av_set_double(enc, opt_names[j], d);
2862 }
2863 frame_height = enc->height;
2864 frame_width = enc->width;
2865 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2866 frame_pix_fmt = enc->pix_fmt;
2867 rfps = ic->streams[i]->r_frame_rate.num;
2868 rfps_base = ic->streams[i]->r_frame_rate.den;
2869 enc->workaround_bugs = workaround_bugs;
2870 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2871 if(me_threshold)
2872 enc->debug |= FF_DEBUG_MV;
2873
2874 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2875
2876 if (verbose >= 0)
2877 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2878 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2879
2880 (float)rfps / rfps_base, rfps, rfps_base);
2881 }
2882 /* update the current frame rate to match the stream frame rate */
2883 frame_rate = rfps;
2884 frame_rate_base = rfps_base;
2885
2886 enc->rate_emu = rate_emu;
2887 if(video_disable)
2888 ic->streams[i]->discard= AVDISCARD_ALL;
2889 else if(video_discard)
2890 ic->streams[i]->discard= video_discard;
2891 break;
2892 case CODEC_TYPE_DATA:
2893 break;
2894 case CODEC_TYPE_SUBTITLE:
2895 break;
2896 case CODEC_TYPE_UNKNOWN:
2897 break;
2898 default:
2899 av_abort();
2900 }
2901 }
2902
2903 input_files[nb_input_files] = ic;
2904 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2905 /* dump the file content */
2906 if (verbose >= 0)
2907 dump_format(ic, nb_input_files, filename, 0);
2908
2909 nb_input_files++;
2910 file_iformat = NULL;
2911 file_oformat = NULL;
2912 image_format = NULL;
2913
2914 grab_device = NULL;
2915 video_channel = 0;
2916
2917 rate_emu = 0;
2918 }
2919
2920 static void opt_grab(const char *arg)
2921 {
2922 file_iformat = av_find_input_format(arg);
2923 opt_input_file("");
2924 }
2925
2926 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2927 {
2928 int has_video, has_audio, i, j;
2929 AVFormatContext *ic;
2930
2931 has_video = 0;
2932 has_audio = 0;
2933 for(j=0;j<nb_input_files;j++) {
2934 ic = input_files[j];
2935 for(i=0;i<ic->nb_streams;i++) {
2936 AVCodecContext *enc = ic->streams[i]->codec;
2937 switch(enc->codec_type) {
2938 case CODEC_TYPE_AUDIO:
2939 has_audio = 1;
2940 break;
2941 case CODEC_TYPE_VIDEO:
2942 has_video = 1;
2943 break;
2944 case CODEC_TYPE_DATA:
2945 case CODEC_TYPE_UNKNOWN:
2946 case CODEC_TYPE_SUBTITLE:
2947 break;
2948 default:
2949 av_abort();
2950 }
2951 }
2952 }
2953 *has_video_ptr = has_video;
2954 *has_audio_ptr = has_audio;
2955 }
2956
2957 static void new_video_stream(AVFormatContext *oc)
2958 {
2959 AVStream *st;
2960 AVCodecContext *video_enc;
2961 int codec_id;
2962
2963 st = av_new_stream(oc, oc->nb_streams);
2964 if (!st) {
2965 fprintf(stderr, "Could not alloc stream\n");
2966 exit(1);
2967 }
2968 #if defined(HAVE_THREADS)
2969 if(thread_count>1)
2970 avcodec_thread_init(st->codec, thread_count);
2971 #endif
2972
2973 video_enc = st->codec;
2974
2975 if(video_codec_tag)
2976 video_enc->codec_tag= video_codec_tag;
2977
2978 if( (video_global_header&1)
2979 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
2980 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2981 avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
2982 }
2983 if(video_global_header&2){
2984 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
2985 avctx_opts->flags2|= CODEC_FLAG2_LOCAL_HEADER;
2986 }
2987
2988 if (video_stream_copy) {
2989 st->stream_copy = 1;
2990 video_enc->codec_type = CODEC_TYPE_VIDEO;
2991 } else {
2992 char *p;
2993 int i;
2994 AVCodec *codec;
2995
2996 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
2997 if (video_codec_id != CODEC_ID_NONE)
2998 codec_id = video_codec_id;
2999
3000 video_enc->codec_id = codec_id;
3001 codec = avcodec_find_encoder(codec_id);
3002
3003 for(i=0; i<opt_name_count; i++){
3004 AVOption *opt;
3005 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3006 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3007 av_set_double(video_enc, opt_names[i], d);
3008 }
3009
3010 video_enc->bit_rate = video_bit_rate;
3011 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
3012 video_enc->time_base.den = frame_rate;
3013 video_enc->time_base.num = frame_rate_base;
3014 if(codec && codec->supported_framerates){
3015 const AVRational *p= codec->supported_framerates;
3016 AVRational req= (AVRational){frame_rate, frame_rate_base};
3017 const AVRational *best=NULL;
3018 AVRational best_error= (AVRational){INT_MAX, 1};
3019 for(; p->den!=0; p++){
3020 AVRational error= av_sub_q(req, *p);
3021 if(error.num <0) error.num *= -1;
3022 if(av_cmp_q(error, best_error) < 0){
3023 best_error= error;
3024 best= p;
3025 }
3026 }
3027 video_enc->time_base.den= best->num;
3028 video_enc->time_base.num= best->den;
3029 }
3030
3031 video_enc->width = frame_width + frame_padright + frame_padleft;
3032 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3033 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3034 video_enc->pix_fmt = frame_pix_fmt;
3035
3036 if(codec && codec->pix_fmts){
3037 const enum PixelFormat *p= codec->pix_fmts;
3038 for(; *p!=-1; p++){
3039 if(*p == video_enc->pix_fmt)
3040 break;
3041 }
3042 if(*p == -1)
3043 video_enc->pix_fmt = codec->pix_fmts[0];
3044 }
3045
3046 if (!intra_only)
3047 video_enc->gop_size = gop_size;
3048 else
3049 video_enc->gop_size = 0;
3050 if (video_qscale || same_quality) {
3051 video_enc->flags |= CODEC_FLAG_QSCALE;
3052 video_enc->global_quality=
3053 st->quality = FF_QP2LAMBDA * video_qscale;
3054 }
3055
3056 if(intra_matrix)
3057 video_enc->intra_matrix = intra_matrix;
3058 if(inter_matrix)
3059 video_enc->inter_matrix = inter_matrix;
3060
3061 video_enc->pre_me = pre_me;
3062
3063 if (b_frames) {
3064 video_enc->max_b_frames = b_frames;
3065 video_enc->b_quant_factor = 2.0;
3066 }
3067 video_enc->qmin = video_qmin;
3068 video_enc->qmax = video_qmax;
3069 video_enc->lmin = video_lmin;
3070 video_enc->lmax = video_lmax;
3071 video_enc->rc_qsquish = video_qsquish;
3072 video_enc->mb_lmin = video_mb_lmin;
3073 video_enc->mb_lmax = video_mb_lmax;
3074 video_enc->max_qdiff = video_qdiff;
3075 video_enc->qblur = video_qblur;
3076 video_enc->qcompress = video_qcomp;
3077 video_enc->rc_eq = video_rc_eq;
3078 video_enc->workaround_bugs = workaround_bugs;
3079 video_enc->thread_count = thread_count;
3080 p= video_rc_override_string;
3081 for(i=0; p; i++){
3082 int start, end, q;
3083 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3084 if(e!=3){
3085 fprintf(stderr, "error parsing rc_override\n");
3086 exit(1);
3087 }
3088 video_enc->rc_override=
3089 av_realloc(video_enc->rc_override,
3090 sizeof(RcOverride)*(i+1));
3091 video_enc->rc_override[i].start_frame= start;
3092 video_enc->rc_override[i].end_frame = end;
3093 if(q>0){
3094 video_enc->rc_override[i].qscale= q;
3095 video_enc->rc_override[i].quality_factor= 1.0;
3096 }
3097 else{
3098 video_enc->rc_override[i].qscale= 0;
3099 video_enc->rc_override[i].quality_factor= -q/100.0;
3100 }
3101 p= strchr(p, '/');
3102 if(p) p++;
3103 }
3104 video_enc->rc_override_count=i;
3105
3106 video_enc->rc_max_rate = video_rc_max_rate;
3107 video_enc->rc_min_rate = video_rc_min_rate;
3108 video_enc->rc_buffer_size = video_rc_buffer_size;
3109 video_enc->rc_initial_buffer_occupancy = video_rc_buffer_size*3/4;
3110 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
3111 video_enc->rc_initial_cplx= video_rc_initial_cplx;
3112 video_enc->i_quant_factor = video_i_qfactor;
3113 video_enc->b_quant_factor = video_b_qfactor;
3114 video_enc->i_quant_offset = video_i_qoffset;
3115 video_enc->b_quant_offset = video_b_qoffset;
3116 video_enc->intra_quant_bias = video_intra_quant_bias;
3117 video_enc->inter_quant_bias = video_inter_quant_bias;
3118 video_enc->me_threshold= me_threshold;
3119 video_enc->mb_threshold= mb_threshold;
3120 video_enc->intra_dc_precision= intra_dc_precision - 8;
3121 video_enc->strict_std_compliance = strict;
3122 video_enc->error_rate = error_rate;
3123 video_enc->scenechange_threshold= sc_threshold;
3124 video_enc->me_range = me_range;
3125 video_enc->me_penalty_compensation= me_penalty_compensation;
3126 video_enc->frame_skip_threshold= frame_skip_threshold;
3127 video_enc->frame_skip_factor= frame_skip_factor;
3128 video_enc->frame_skip_exp= frame_skip_exp;
3129
3130 if(packet_size){
3131 video_enc->rtp_mode= 1;
3132 video_enc->rtp_payload_size= packet_size;
3133 }
3134
3135 if (do_psnr)
3136 video_enc->flags|= CODEC_FLAG_PSNR;
3137
3138 video_enc->me_method = me_method;
3139
3140 /* two pass mode */
3141 if (do_pass) {
3142 if (do_pass == 1) {
3143 video_enc->flags |= CODEC_FLAG_PASS1;
3144 } else {
3145 video_enc->flags |= CODEC_FLAG_PASS2;
3146 }
3147 }
3148 }
3149
3150 /* reset some key parameters */
3151 video_disable = 0;
3152 video_codec_id = CODEC_ID_NONE;
3153 video_stream_copy = 0;
3154 }
3155
3156 static void new_audio_stream(AVFormatContext *oc)
3157 {
3158 AVStream *st;
3159 AVCodecContext *audio_enc;
3160 int codec_id, i;
3161
3162 st = av_new_stream(oc, oc->nb_streams);
3163 if (!st) {
3164 fprintf(stderr, "Could not alloc stream\n");
3165 exit(1);
3166 }
3167 #if defined(HAVE_THREADS)
3168 if(thread_count>1)
3169 avcodec_thread_init(st->codec, thread_count);
3170 #endif
3171
3172 audio_enc = st->codec;
3173 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3174
3175 if(audio_codec_tag)
3176 audio_enc->codec_tag= audio_codec_tag;
3177
3178 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3179 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3180 avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
3181 }
3182 if (audio_stream_copy) {
3183 st->stream_copy = 1;
3184 audio_enc->channels = audio_channels;
3185 } else {
3186 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3187
3188 for(i=0; i<opt_name_count; i++){
3189 AVOption *opt;
3190 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3191 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3192 av_set_double(audio_enc, opt_names[i], d);
3193 }
3194
3195 if (audio_codec_id != CODEC_ID_NONE)
3196 codec_id = audio_codec_id;
3197 audio_enc->codec_id = codec_id;
3198
3199 audio_enc->bit_rate = audio_bit_rate;
3200 if (audio_qscale > QSCALE_NONE) {
3201 audio_enc->flags |= CODEC_FLAG_QSCALE;
3202 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3203 }
3204 audio_enc->strict_std_compliance = strict;
3205 audio_enc->thread_count = thread_count;
3206 /* For audio codecs other than AC3 or DTS we limit */
3207 /* the number of coded channels to stereo */
3208 if (audio_channels > 2 && codec_id != CODEC_ID_AC3
3209 && codec_id != CODEC_ID_DTS) {
3210 audio_enc->channels = 2;
3211 } else
3212 audio_enc->channels = audio_channels;
3213 }
3214 audio_enc->sample_rate = audio_sample_rate;
3215 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3216 if (audio_language) {
3217 pstrcpy(st->language, sizeof(st->language), audio_language);
3218 av_free(audio_language);
3219 audio_language = NULL;
3220 }
3221
3222 /* reset some key parameters */
3223 audio_disable = 0;
3224 audio_codec_id = CODEC_ID_NONE;
3225 audio_stream_copy = 0;
3226 }
3227
3228 static void opt_new_subtitle_stream(void)
3229 {
3230 AVFormatContext *oc;
3231 AVStream *st;
3232 AVCodecContext *subtitle_enc;
3233 int i;
3234
3235 if (nb_output_files <= 0) {
3236 fprintf(stderr, "At least one output file must be specified\n");
3237 exit(1);
3238 }
3239 oc = output_files[nb_output_files - 1];
3240
3241 st = av_new_stream(oc, oc->nb_streams);
3242 if (!st) {
3243 fprintf(stderr, "Could not alloc stream\n");
3244 exit(1);
3245 }
3246
3247 subtitle_enc = st->codec;
3248 subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
3249 if (subtitle_stream_copy) {
3250 st->stream_copy = 1;
3251 } else {
3252 for(i=0; i<opt_name_count; i++){
3253 AVOption *opt;
3254 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3255 if(d==d && (opt->flags&AV_OPT_FLAG_SUBTITLE_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3256 av_set_double(subtitle_enc, opt_names[i], d);
3257 }
3258 subtitle_enc->codec_id = subtitle_codec_id;
3259 }
3260
3261 if (subtitle_language) {
3262 pstrcpy(st->language, sizeof(st->language), subtitle_language);
3263 av_free(subtitle_language);
3264 subtitle_language = NULL;
3265 }
3266
3267 subtitle_codec_id = CODEC_ID_NONE;
3268 subtitle_stream_copy = 0;
3269 }
3270
3271 static void opt_new_audio_stream(void)
3272 {
3273 AVFormatContext *oc;
3274 if (nb_output_files <= 0) {
3275 fprintf(stderr, "At least one output file must be specified\n");
3276 exit(1);
3277 }
3278 oc = output_files[nb_output_files - 1];
3279 new_audio_stream(oc);
3280 }
3281
3282 static void opt_new_video_stream(void)
3283 {
3284 AVFormatContext *oc;
3285 if