build mpegaudio.c and ac3enc.c only if needed
[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 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
254 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
255 static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
256
257 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
258
259 struct AVInputStream;
260
261 typedef struct AVOutputStream {
262 int file_index; /* file index */
263 int index; /* stream index in the output file */
264 int source_index; /* AVInputStream index */
265 AVStream *st; /* stream in the output file */
266 int encoding_needed; /* true if encoding needed for this stream */
267 int frame_number;
268 /* input pts and corresponding output pts
269 for A/V sync */
270 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
271 struct AVInputStream *sync_ist; /* input stream to sync against */
272 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
273 /* video only */
274 int video_resample;
275 AVFrame pict_tmp; /* temporary image for resampling */
276 ImgReSampleContext *img_resample_ctx; /* for image resampling */
277
278 int video_crop;
279 int topBand; /* cropping area sizes */
280 int leftBand;
281
282 int video_pad;
283 int padtop; /* padding area sizes */
284 int padbottom;
285 int padleft;
286 int padright;
287
288 /* audio only */
289 int audio_resample;
290 ReSampleContext *resample; /* for audio resampling */
291 FifoBuffer fifo; /* for compression: one audio fifo per codec */
292 FILE *logfile;
293 } AVOutputStream;
294
295 typedef struct AVInputStream {
296 int file_index;
297 int index;
298 AVStream *st;
299 int discard; /* true if stream data should be discarded */
300 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
301 int64_t sample_index; /* current sample */
302
303 int64_t start; /* time when read started */
304 unsigned long frame; /* current frame */
305 int64_t next_pts; /* synthetic pts for cases where pkt.pts
306 is not defined */
307 int64_t pts; /* current pts */
308 int is_start; /* is 1 at the start and after a discontinuity */
309 } AVInputStream;
310
311 typedef struct AVInputFile {
312 int eof_reached; /* true if eof reached */
313 int ist_index; /* index of first stream in ist_table */
314 int buffer_size; /* current total buffer size */
315 int buffer_size_max; /* buffer size at which we consider we can stop
316 buffering */
317 int nb_streams; /* nb streams we are aware of */
318 } AVInputFile;
319
320 #ifndef CONFIG_WIN32
321
322 /* init terminal so that we can grab keys */
323 static struct termios oldtty;
324
325 static void term_exit(void)
326 {
327 tcsetattr (0, TCSANOW, &oldtty);
328 }
329
330 static volatile sig_atomic_t received_sigterm = 0;
331
332 static void
333 sigterm_handler(int sig)
334 {
335 received_sigterm = sig;
336 term_exit();
337 }
338
339 static void term_init(void)
340 {
341 struct termios tty;
342
343 tcgetattr (0, &tty);
344 oldtty = tty;
345
346 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
347 |INLCR|IGNCR|ICRNL|IXON);
348 tty.c_oflag |= OPOST;
349 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
350 tty.c_cflag &= ~(CSIZE|PARENB);
351 tty.c_cflag |= CS8;
352 tty.c_cc[VMIN] = 1;
353 tty.c_cc[VTIME] = 0;
354
355 tcsetattr (0, TCSANOW, &tty);
356
357 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
358 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
359 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
360 /*
361 register a function to be called at normal program termination
362 */
363 atexit(term_exit);
364 #ifdef CONFIG_BEOS_NETSERVER
365 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
366 #endif
367 }
368
369 /* read a key without blocking */
370 static int read_key(void)
371 {
372 int n = 1;
373 unsigned char ch;
374 #ifndef CONFIG_BEOS_NETSERVER
375 struct timeval tv;
376 fd_set rfds;
377
378 FD_ZERO(&rfds);
379 FD_SET(0, &rfds);
380 tv.tv_sec = 0;
381 tv.tv_usec = 0;
382 n = select(1, &rfds, NULL, NULL, &tv);
383 #endif
384 if (n > 0) {
385 n = read(0, &ch, 1);
386 if (n == 1)
387 return ch;
388
389 return n;
390 }
391 return -1;
392 }
393
394 static int decode_interrupt_cb(void)
395 {
396 return q_pressed || (q_pressed = read_key() == 'q');
397 }
398
399 #else
400
401 static volatile int received_sigterm = 0;
402
403 /* no interactive support */
404 static void term_exit(void)
405 {
406 }
407
408 static void term_init(void)
409 {
410 }
411
412 static int read_key(void)
413 {
414 return 0;
415 }
416
417 #endif
418
419 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
420 {
421 int i, err;
422 AVFormatContext *ic;
423
424 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
425 if (err < 0)
426 return err;
427 /* copy stream format */
428 s->nb_streams = ic->nb_streams;
429 for(i=0;i<ic->nb_streams;i++) {
430 AVStream *st;
431
432 // FIXME: a more elegant solution is needed
433 st = av_mallocz(sizeof(AVStream));
434 memcpy(st, ic->streams[i], sizeof(AVStream));
435 st->codec = avcodec_alloc_context();
436 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
437 s->streams[i] = st;
438 }
439
440 av_close_input_file(ic);
441 return 0;
442 }
443
444 static double
445 get_sync_ipts(const AVOutputStream *ost)
446 {
447 const AVInputStream *ist = ost->sync_ist;
448 return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
449 }
450
451 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
452 while(bsfc){
453 AVPacket new_pkt= *pkt;
454 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
455 &new_pkt.data, &new_pkt.size,
456 pkt->data, pkt->size,
457 pkt->flags & PKT_FLAG_KEY);
458 if(a){
459 av_free_packet(pkt);
460 new_pkt.destruct= av_destruct_packet;
461 }
462 *pkt= new_pkt;
463
464 bsfc= bsfc->next;
465 }
466
467 av_interleaved_write_frame(s, pkt);
468 }
469
470 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
471
472 static void do_audio_out(AVFormatContext *s,
473 AVOutputStream *ost,
474 AVInputStream *ist,
475 unsigned char *buf, int size)
476 {
477 uint8_t *buftmp;
478 static uint8_t *audio_buf = NULL;
479 static uint8_t *audio_out = NULL;
480 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
481
482 int size_out, frame_bytes, ret;
483 AVCodecContext *enc= ost->st->codec;
484
485 /* SC: dynamic allocation of buffers */
486 if (!audio_buf)
487 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
488 if (!audio_out)
489 audio_out = av_malloc(audio_out_size);
490 if (!audio_buf || !audio_out)
491 return; /* Should signal an error ! */
492
493 if(audio_sync_method){
494 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
495 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2);
496 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
497 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
498
499 //FIXME resample delay
500 if(fabs(delta) > 50){
501 if(ist->is_start){
502 if(byte_delta < 0){
503 byte_delta= FFMAX(byte_delta, -size);
504 size += byte_delta;
505 buf -= byte_delta;
506 if(verbose > 2)
507 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
508 if(!size)
509 return;
510 ist->is_start=0;
511 }else{
512 static uint8_t *input_tmp= NULL;
513 input_tmp= av_realloc(input_tmp, byte_delta + size);
514
515 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
516 ist->is_start=0;
517 else
518 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
519
520 memset(input_tmp, 0, byte_delta);
521 memcpy(input_tmp + byte_delta, buf, size);
522 buf= input_tmp;
523 size += byte_delta;
524 if(verbose > 2)
525 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
526 }
527 }else if(audio_sync_method>1){
528 int comp= clip(delta, -audio_sync_method, audio_sync_method);
529 assert(ost->audio_resample);
530 if(verbose > 2)
531 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
532 // 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));
533 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
534 }
535 }
536 }else
537 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
538 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2); //FIXME wrong
539
540 if (ost->audio_resample) {
541 buftmp = audio_buf;
542 size_out = audio_resample(ost->resample,
543 (short *)buftmp, (short *)buf,
544 size / (ist->st->codec->channels * 2));
545 size_out = size_out * enc->channels * 2;
546 } else {
547 buftmp = buf;
548 size_out = size;
549 }
550
551 /* now encode as many frames as possible */
552 if (enc->frame_size > 1) {
553 /* output resampled raw samples */
554 fifo_write(&ost->fifo, buftmp, size_out,
555 &ost->fifo.wptr);
556
557 frame_bytes = enc->frame_size * 2 * enc->channels;
558
559 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
560 &ost->fifo.rptr) == 0) {
561 AVPacket pkt;
562 av_init_packet(&pkt);
563
564 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
565 (short *)audio_buf);
566 audio_size += ret;
567 pkt.stream_index= ost->index;
568 pkt.data= audio_out;
569 pkt.size= ret;
570 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
571 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
572 pkt.flags |= PKT_FLAG_KEY;
573 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
574
575 ost->sync_opts += enc->frame_size;
576 }
577 } else {
578 AVPacket pkt;
579 av_init_packet(&pkt);
580
581 ost->sync_opts += size_out / (2 * enc->channels);
582
583 /* output a pcm frame */
584 /* XXX: change encoding codec API to avoid this ? */
585 switch(enc->codec->id) {
586 case CODEC_ID_PCM_S32LE:
587 case CODEC_ID_PCM_S32BE:
588 case CODEC_ID_PCM_U32LE:
589 case CODEC_ID_PCM_U32BE:
590 size_out = size_out << 1;
591 break;
592 case CODEC_ID_PCM_S24LE:
593 case CODEC_ID_PCM_S24BE:
594 case CODEC_ID_PCM_U24LE:
595 case CODEC_ID_PCM_U24BE:
596 case CODEC_ID_PCM_S24DAUD:
597 size_out = size_out / 2 * 3;
598 break;
599 case CODEC_ID_PCM_S16LE:
600 case CODEC_ID_PCM_S16BE:
601 case CODEC_ID_PCM_U16LE:
602 case CODEC_ID_PCM_U16BE:
603 break;
604 default:
605 size_out = size_out >> 1;
606 break;
607 }
608 ret = avcodec_encode_audio(enc, audio_out, size_out,
609 (short *)buftmp);
610 audio_size += ret;
611 pkt.stream_index= ost->index;
612 pkt.data= audio_out;
613 pkt.size= ret;
614 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
615 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
616 pkt.flags |= PKT_FLAG_KEY;
617 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
618 }
619 }
620
621 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
622 {
623 AVCodecContext *dec;
624 AVPicture *picture2;
625 AVPicture picture_tmp;
626 uint8_t *buf = 0;
627
628 dec = ist->st->codec;
629
630 /* deinterlace : must be done before any resize */
631 if (do_deinterlace || using_vhook) {
632 int size;
633
634 /* create temporary picture */
635 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
636 buf = av_malloc(size);
637 if (!buf)
638 return;
639
640 picture2 = &picture_tmp;
641 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
642
643 if (do_deinterlace){
644 if(avpicture_deinterlace(picture2, picture,
645 dec->pix_fmt, dec->width, dec->height) < 0) {
646 /* if error, do not deinterlace */
647 av_free(buf);
648 buf = NULL;
649 picture2 = picture;
650 }
651 } else {
652 img_copy(picture2, picture, dec->pix_fmt, dec->width, dec->height);
653 }
654 } else {
655 picture2 = picture;
656 }
657
658 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
659
660 if (picture != picture2)
661 *picture = *picture2;
662 *bufp = buf;
663 }
664
665 /* we begin to correct av delay at this threshold */
666 #define AV_DELAY_MAX 0.100
667
668 static void do_subtitle_out(AVFormatContext *s,
669 AVOutputStream *ost,
670 AVInputStream *ist,
671 AVSubtitle *sub,
672 int64_t pts)
673 {
674 static uint8_t *subtitle_out = NULL;
675 int subtitle_out_max_size = 65536;
676 int subtitle_out_size, nb, i;
677 AVCodecContext *enc;
678 AVPacket pkt;
679
680 if (pts == AV_NOPTS_VALUE) {
681 fprintf(stderr, "Subtitle packets must have a pts\n");
682 return;
683 }
684
685 enc = ost->st->codec;
686
687 if (!subtitle_out) {
688 subtitle_out = av_malloc(subtitle_out_max_size);
689 }
690
691 /* Note: DVB subtitle need one packet to draw them and one other
692 packet to clear them */
693 /* XXX: signal it in the codec context ? */
694 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
695 nb = 2;
696 else
697 nb = 1;
698
699 for(i = 0; i < nb; i++) {
700 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
701 subtitle_out_max_size, sub);
702
703 av_init_packet(&pkt);
704 pkt.stream_index = ost->index;
705 pkt.data = subtitle_out;
706 pkt.size = subtitle_out_size;
707 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);
708 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
709 /* XXX: the pts correction is handled here. Maybe handling
710 it in the codec would be better */
711 if (i == 0)
712 pkt.pts += 90 * sub->start_display_time;
713 else
714 pkt.pts += 90 * sub->end_display_time;
715 }
716 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
717 }
718 }
719
720 static int bit_buffer_size= 1024*256;
721 static uint8_t *bit_buffer= NULL;
722
723 static void do_video_out(AVFormatContext *s,
724 AVOutputStream *ost,
725 AVInputStream *ist,
726 AVFrame *in_picture,
727 int *frame_size)
728 {
729 int nb_frames, i, ret;
730 AVFrame *final_picture, *formatted_picture, *resampling_dst, *padding_src;
731 AVFrame picture_format_temp, picture_crop_temp, picture_pad_temp;
732 uint8_t *buf = NULL, *buf1 = NULL;
733 AVCodecContext *enc, *dec;
734 enum PixelFormat target_pixfmt;
735
736 avcodec_get_frame_defaults(&picture_format_temp);
737 avcodec_get_frame_defaults(&picture_crop_temp);
738 avcodec_get_frame_defaults(&picture_pad_temp);
739
740 enc = ost->st->codec;
741 dec = ist->st->codec;
742
743 /* by default, we output a single frame */
744 nb_frames = 1;
745
746 *frame_size = 0;
747
748 if(video_sync_method){
749 double vdelta;
750 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
751 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
752 if (vdelta < -1.1)
753 nb_frames = 0;
754 else if (vdelta > 1.1)
755 nb_frames = lrintf(vdelta);
756 //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);
757 if (nb_frames == 0){
758 ++nb_frames_drop;
759 if (verbose>2)
760 fprintf(stderr, "*** drop!\n");
761 }else if (nb_frames > 1) {
762 nb_frames_dup += nb_frames;
763 if (verbose>2)
764 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
765 }
766 }else
767 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
768
769 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
770 if (nb_frames <= 0)
771 return;
772
773 /* convert pixel format if needed */
774 target_pixfmt = ost->video_resample ? PIX_FMT_YUV420P : enc->pix_fmt;
775 if (dec->pix_fmt != target_pixfmt) {
776 int size;
777
778 /* create temporary picture */
779 size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
780 buf = av_malloc(size);
781 if (!buf)
782 return;
783 formatted_picture = &picture_format_temp;
784 avpicture_fill((AVPicture*)formatted_picture, buf, target_pixfmt, dec->width, dec->height);
785
786 if (img_convert((AVPicture*)formatted_picture, target_pixfmt,
787 (AVPicture *)in_picture, dec->pix_fmt,
788 dec->width, dec->height) < 0) {
789
790 if (verbose >= 0)
791 fprintf(stderr, "pixel format conversion not handled\n");
792
793 goto the_end;
794 }
795 } else {
796 formatted_picture = in_picture;
797 }
798
799 if (ost->video_crop) {
800 if (img_crop((AVPicture *)&picture_crop_temp, (AVPicture *)formatted_picture, target_pixfmt, ost->topBand, ost->leftBand) < 0) {
801 av_log(NULL, AV_LOG_ERROR, "error cropping picture\n");
802 goto the_end;
803 }
804 formatted_picture = &picture_crop_temp;
805 }
806
807 final_picture = formatted_picture;
808 padding_src = formatted_picture;
809 resampling_dst = &ost->pict_tmp;
810 if (ost->video_pad) {
811 final_picture = &ost->pict_tmp;
812 if (ost->video_resample) {
813 if (img_crop((AVPicture *)&picture_pad_temp, (AVPicture *)final_picture, target_pixfmt, ost->padtop, ost->padleft) < 0) {
814 av_log(NULL, AV_LOG_ERROR, "error padding picture\n");
815 goto the_end;
816 }
817 resampling_dst = &picture_pad_temp;
818 }
819 }
820
821 /* XXX: resampling could be done before raw format conversion in
822 some cases to go faster */
823 /* XXX: only works for YUV420P */
824 if (ost->video_resample) {
825 padding_src = NULL;
826 final_picture = &ost->pict_tmp;
827 img_resample(ost->img_resample_ctx, (AVPicture *)resampling_dst, (AVPicture*)formatted_picture);
828 }
829
830 if (enc->pix_fmt != target_pixfmt) {
831 int size;
832
833 av_free(buf);
834 /* create temporary picture */
835 size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
836 buf = av_malloc(size);
837 if (!buf)
838 return;
839 final_picture = &picture_format_temp;
840 avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
841
842 if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
843 (AVPicture*)&ost->pict_tmp, target_pixfmt,
844 enc->width, enc->height) < 0) {
845
846 if (verbose >= 0)
847 fprintf(stderr, "pixel format conversion not handled\n");
848
849 goto the_end;
850 }
851 }
852
853 if (ost->video_pad) {
854 img_pad((AVPicture*)final_picture, (AVPicture *)padding_src,
855 enc->height, enc->width, enc->pix_fmt,
856 ost->padtop, ost->padbottom, ost->padleft, ost->padright, padcolor);
857 }
858
859 /* duplicates frame if needed */
860 for(i=0;i<nb_frames;i++) {
861 AVPacket pkt;
862 av_init_packet(&pkt);
863 pkt.stream_index= ost->index;
864
865 if (s->oformat->flags & AVFMT_RAWPICTURE) {
866 /* raw pictures are written as AVPicture structure to
867 avoid any copies. We support temorarily the older
868 method. */
869 AVFrame* old_frame = enc->coded_frame;
870 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
871 pkt.data= (uint8_t *)final_picture;
872 pkt.size= sizeof(AVPicture);
873 if(dec->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
874 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
875 if(dec->coded_frame && dec->coded_frame->key_frame)
876 pkt.flags |= PKT_FLAG_KEY;
877
878 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
879 enc->coded_frame = old_frame;
880 } else {
881 AVFrame big_picture;
882
883 big_picture= *final_picture;
884 /* better than nothing: use input picture interlaced
885 settings */
886 big_picture.interlaced_frame = in_picture->interlaced_frame;
887 if(avctx_opts->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
888 if(top_field_first == -1)
889 big_picture.top_field_first = in_picture->top_field_first;
890 else
891 big_picture.top_field_first = top_field_first;
892 }
893
894 /* handles sameq here. This is not correct because it may
895 not be a global option */
896 if (same_quality) {
897 big_picture.quality = ist->st->quality;
898 }else
899 big_picture.quality = ost->st->quality;
900 if(!me_threshold)
901 big_picture.pict_type = 0;
902 // big_picture.pts = AV_NOPTS_VALUE;
903 big_picture.pts= ost->sync_opts;
904 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
905 //av_log(NULL, AV_LOG_DEBUG, "%lld -> encoder\n", ost->sync_opts);
906 ret = avcodec_encode_video(enc,
907 bit_buffer, bit_buffer_size,
908 &big_picture);
909 //enc->frame_number = enc->real_pict_num;
910 if(ret>0){
911 pkt.data= bit_buffer;
912 pkt.size= ret;
913 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
914 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
915 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %lld/%lld\n",
916 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
917 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
918
919 if(enc->coded_frame && enc->coded_frame->key_frame)
920 pkt.flags |= PKT_FLAG_KEY;
921 write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
922 *frame_size = ret;
923 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
924 // enc->frame_number-1, enc->real_pict_num, ret,
925 // enc->pict_type);
926 /* if two pass, output log */
927 if (ost->logfile && enc->stats_out) {
928 fprintf(ost->logfile, "%s", enc->stats_out);
929 }
930 }
931 }
932 ost->sync_opts++;
933 ost->frame_number++;
934 }
935 the_end:
936 av_free(buf);
937 av_free(buf1);
938 }
939
940 static double psnr(double d){
941 if(d==0) return INFINITY;
942 return -10.0*log(d)/log(10.0);
943 }
944
945 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
946 int frame_size)
947 {
948 static FILE *fvstats=NULL;
949 char filename[40];
950 time_t today2;
951 struct tm *today;
952 AVCodecContext *enc;
953 int frame_number;
954 int64_t ti;
955 double ti1, bitrate, avg_bitrate;
956
957 if (!fvstats) {
958 today2 = time(NULL);
959 today = localtime(&today2);
960 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour,
961 today->tm_min,
962 today->tm_sec);
963 fvstats = fopen(filename,"w");
964 if (!fvstats) {
965 perror("fopen");
966 exit(1);
967 }
968 }
969
970 ti = MAXINT64;
971 enc = ost->st->codec;
972 if (enc->codec_type == CODEC_TYPE_VIDEO) {
973 frame_number = ost->frame_number;
974 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
975 if (enc->flags&CODEC_FLAG_PSNR)
976 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
977
978 fprintf(fvstats,"f_size= %6d ", frame_size);
979 /* compute pts value */
980 ti1 = ost->sync_opts * av_q2d(enc->time_base);
981 if (ti1 < 0.01)
982 ti1 = 0.01;
983
984 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
985 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
986 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
987 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
988 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
989 }
990 }
991
992 static void print_report(AVFormatContext **output_files,
993 AVOutputStream **ost_table, int nb_ostreams,
994 int is_last_report)
995 {
996 char buf[1024];
997 AVOutputStream *ost;
998 AVFormatContext *oc, *os;
999 int64_t total_size;
1000 AVCodecContext *enc;
1001 int frame_number, vid, i;
1002 double bitrate, ti1, pts;
1003 static int64_t last_time = -1;
1004 static int qp_histogram[52];
1005
1006 if (!is_last_report) {
1007 int64_t cur_time;
1008 /* display the report every 0.5 seconds */
1009 cur_time = av_gettime();
1010 if (last_time == -1) {
1011 last_time = cur_time;
1012 return;
1013 }
1014 if ((cur_time - last_time) < 500000)
1015 return;
1016 last_time = cur_time;
1017 }
1018
1019
1020 oc = output_files[0];
1021
1022 total_size = url_ftell(&oc->pb);
1023
1024 buf[0] = '\0';
1025 ti1 = 1e10;
1026 vid = 0;
1027 for(i=0;i<nb_ostreams;i++) {
1028 ost = ost_table[i];
1029 os = output_files[ost->file_index];
1030 enc = ost->st->codec;
1031 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1032 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1033 enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1034 }
1035 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1036 frame_number = ost->frame_number;
1037 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%3.1f ",
1038 frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1039 if(is_last_report)
1040 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1041 if(qp_hist && enc->coded_frame){
1042 int j;
1043 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1044 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1045 qp_histogram[qp]++;
1046 for(j=0; j<32; j++)
1047 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1048 }
1049 if (enc->flags&CODEC_FLAG_PSNR){
1050 int j;
1051 double error, error_sum=0;
1052 double scale, scale_sum=0;
1053 char type[3]= {'Y','U','V'};
1054 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1055 for(j=0; j<3; j++){
1056 if(is_last_report){
1057 error= enc->error[j];
1058 scale= enc->width*enc->height*255.0*255.0*frame_number;
1059 }else{
1060 error= enc->coded_frame->error[j];
1061 scale= enc->width*enc->height*255.0*255.0;
1062 }
1063 if(j) scale/=4;
1064 error_sum += error;
1065 scale_sum += scale;
1066 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1067 }
1068 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1069 }
1070 vid = 1;
1071 }
1072 /* compute min output value */
1073 pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
1074 if ((pts < ti1) && (pts > 0))
1075 ti1 = pts;
1076 }
1077 if (ti1 < 0.01)
1078 ti1 = 0.01;
1079
1080 if (verbose || is_last_report) {
1081 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1082
1083 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1084 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1085 (double)total_size / 1024, ti1, bitrate);
1086
1087 if (verbose > 1)
1088 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1089 nb_frames_dup, nb_frames_drop);
1090
1091 if (verbose >= 0)
1092 fprintf(stderr, "%s \r", buf);
1093
1094 fflush(stderr);
1095 }
1096
1097 if (is_last_report && verbose >= 0){
1098 int64_t raw= audio_size + video_size + extra_size;
1099 fprintf(stderr, "\n");
1100 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1101 video_size/1024.0,
1102 audio_size/1024.0,
1103 extra_size/1024.0,
1104 100.0*(total_size - raw)/raw
1105 );
1106 }
1107 }
1108
1109 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1110 static int output_packet(AVInputStream *ist, int ist_index,
1111 AVOutputStream **ost_table, int nb_ostreams,
1112 const AVPacket *pkt)
1113 {
1114 AVFormatContext *os;
1115 AVOutputStream *ost;
1116 uint8_t *ptr;
1117 int len, ret, i;
1118 uint8_t *data_buf;
1119 int data_size, got_picture;
1120 AVFrame picture;
1121 void *buffer_to_free;
1122 static unsigned int samples_size= 0;
1123 static short *samples= NULL;
1124 AVSubtitle subtitle, *subtitle_to_free;
1125 int got_subtitle;
1126
1127 if(!pkt){
1128 ist->pts= ist->next_pts; // needed for last packet if vsync=0
1129 } else if (pkt->dts != AV_NOPTS_VALUE) { //FIXME seems redundant, as libavformat does this too
1130 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1131 } else {
1132 // assert(ist->pts == ist->next_pts);
1133 }
1134
1135 if (pkt == NULL) {
1136 /* EOF handling */
1137 ptr = NULL;
1138 len = 0;
1139 goto handle_eof;
1140 }
1141
1142 len = pkt->size;
1143 ptr = pkt->data;
1144 while (len > 0) {
1145 handle_eof:
1146 /* decode the packet if needed */
1147 data_buf = NULL; /* fail safe */
1148 data_size = 0;
1149 subtitle_to_free = NULL;
1150 if (ist->decoding_needed) {
1151 switch(ist->st->codec->codec_type) {
1152 case CODEC_TYPE_AUDIO:{
1153 if(pkt)
1154 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
1155 /* XXX: could avoid copy if PCM 16 bits with same
1156 endianness as CPU */
1157 ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
1158 ptr, len);
1159 if (ret < 0)
1160 goto fail_decode;
1161 ptr += ret;
1162 len -= ret;
1163 /* Some bug in mpeg audio decoder gives */
1164 /* data_size < 0, it seems they are overflows */
1165 if (data_size <= 0) {
1166 /* no audio frame */
1167 continue;
1168 }
1169 data_buf = (uint8_t *)samples;
1170 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1171 (ist->st->codec->sample_rate * ist->st->codec->channels);
1172 break;}
1173 case CODEC_TYPE_VIDEO:
1174 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1175 /* XXX: allocate picture correctly */
1176 avcodec_get_frame_defaults(&picture);
1177
1178 ret = avcodec_decode_video(ist->st->codec,
1179 &picture, &got_picture, ptr, len);
1180 ist->st->quality= picture.quality;
1181 if (ret < 0)
1182 goto fail_decode;
1183 if (!got_picture) {
1184 /* no picture yet */
1185 goto discard_packet;
1186 }
1187 if (ist->st->codec->time_base.num != 0) {
1188 ist->next_pts += ((int64_t)AV_TIME_BASE *
1189 ist->st->codec->time_base.num) /
1190 ist->st->codec->time_base.den;
1191 }
1192 len = 0;
1193 break;
1194 case CODEC_TYPE_SUBTITLE:
1195 ret = avcodec_decode_subtitle(ist->st->codec,
1196 &subtitle, &got_subtitle, ptr, len);
1197 if (ret < 0)
1198 goto fail_decode;
1199 if (!got_subtitle) {
1200 goto discard_packet;
1201 }
1202 subtitle_to_free = &subtitle;
1203 len = 0;
1204 break;
1205 default:
1206 goto fail_decode;
1207 }
1208 } else {
1209 switch(ist->st->codec->codec_type) {
1210 case CODEC_TYPE_AUDIO:
1211 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1212 (ist->st->codec->sample_rate * ist->st->codec->channels);
1213 break;
1214 case CODEC_TYPE_VIDEO:
1215 if (ist->st->codec->time_base.num != 0) {
1216 ist->next_pts += ((int64_t)AV_TIME_BASE *
1217 ist->st->codec->time_base.num) /
1218 ist->st->codec->time_base.den;
1219 }
1220 break;
1221 }
1222 data_buf = ptr;
1223 data_size = len;
1224 ret = len;
1225 len = 0;
1226 }
1227
1228 buffer_to_free = NULL;
1229 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1230 pre_process_video_frame(ist, (AVPicture *)&picture,
1231 &buffer_to_free);
1232 }
1233
1234 // preprocess audio (volume)
1235 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1236 if (audio_volume != 256) {
1237 short *volp;
1238 volp = samples;
1239 for(i=0;i<(data_size / sizeof(short));i++) {
1240 int v = ((*volp) * audio_volume + 128) >> 8;
1241 if (v < -32768) v = -32768;
1242 if (v > 32767) v = 32767;
1243 *volp++ = v;
1244 }
1245 }
1246 }
1247
1248 /* frame rate emulation */
1249 if (ist->st->codec->rate_emu) {
1250 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1251 int64_t now = av_gettime() - ist->start;
1252 if (pts > now)
1253 usleep(pts - now);
1254
1255 ist->frame++;
1256 }
1257
1258 #if 0
1259 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1260 is the one of the next displayed one */
1261 /* XXX: add mpeg4 too ? */
1262 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1263 if (ist->st->codec->pict_type != B_TYPE) {
1264 int64_t tmp;
1265 tmp = ist->last_ip_pts;
1266 ist->last_ip_pts = ist->frac_pts.val;
1267 ist->frac_pts.val = tmp;
1268 }
1269 }
1270 #endif
1271 /* if output time reached then transcode raw format,
1272 encode packets and output them */
1273 if (start_time == 0 || ist->pts >= start_time)
1274 for(i=0;i<nb_ostreams;i++) {
1275 int frame_size;
1276
1277 ost = ost_table[i];
1278 if (ost->source_index == ist_index) {
1279 os = output_files[ost->file_index];
1280
1281 #if 0
1282 printf("%d: got pts=%0.3f %0.3f\n", i,
1283 (double)pkt->pts / AV_TIME_BASE,
1284 ((double)ist->pts / AV_TIME_BASE) -
1285 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1286 #endif
1287 /* set the input output pts pairs */
1288 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1289
1290 if (ost->encoding_needed) {
1291 switch(ost->st->codec->codec_type) {
1292 case CODEC_TYPE_AUDIO:
1293 do_audio_out(os, ost, ist, data_buf, data_size);
1294 break;
1295 case CODEC_TYPE_VIDEO:
1296 do_video_out(os, ost, ist, &picture, &frame_size);
1297 video_size += frame_size;
1298 if (do_vstats && frame_size)
1299 do_video_stats(os, ost, frame_size);
1300 break;
1301 case CODEC_TYPE_SUBTITLE:
1302 do_subtitle_out(os, ost, ist, &subtitle,
1303 pkt->pts);
1304 break;
1305 default:
1306 av_abort();
1307 }
1308 } else {
1309 AVFrame avframe; //FIXME/XXX remove this
1310 AVPacket opkt;
1311 av_init_packet(&opkt);
1312
1313 /* no reencoding needed : output the packet directly */
1314 /* force the input stream PTS */
1315
1316 avcodec_get_frame_defaults(&avframe);
1317 ost->st->codec->coded_frame= &avframe;
1318 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1319
1320 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1321 audio_size += data_size;
1322 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1323 video_size += data_size;
1324 ost->sync_opts++;
1325 }
1326
1327 opkt.stream_index= ost->index;
1328 if(pkt->pts != AV_NOPTS_VALUE)
1329 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);
1330 else
1331 opkt.pts= AV_NOPTS_VALUE;
1332
1333 {
1334 int64_t dts;
1335 if (pkt->dts == AV_NOPTS_VALUE)
1336 dts = ist->next_pts;
1337 else
1338 dts= av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1339 opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
1340 }
1341 opkt.flags= pkt->flags;
1342
1343 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1344 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1345 opkt.destruct= av_destruct_packet;
1346
1347 write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][pkt->stream_index]);
1348 ost->st->codec->frame_number++;
1349 ost->frame_number++;
1350 av_free_packet(&opkt);
1351 }
1352 }
1353 }
1354 av_free(buffer_to_free);
1355 /* XXX: allocate the subtitles in the codec ? */
1356 if (subtitle_to_free) {
1357 if (subtitle_to_free->rects != NULL) {
1358 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1359 av_free(subtitle_to_free->rects[i].bitmap);
1360 av_free(subtitle_to_free->rects[i].rgba_palette);
1361 }
1362 av_freep(&subtitle_to_free->rects);
1363 }
1364 subtitle_to_free->num_rects = 0;
1365 subtitle_to_free = NULL;
1366 }
1367 }
1368 discard_packet:
1369 if (pkt == NULL) {
1370 /* EOF handling */
1371
1372 for(i=0;i<nb_ostreams;i++) {
1373 ost = ost_table[i];
1374 if (ost->source_index == ist_index) {
1375 AVCodecContext *enc= ost->st->codec;
1376 os = output_files[ost->file_index];
1377
1378 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1379 continue;
1380 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1381 continue;
1382
1383 if (ost->encoding_needed) {
1384 for(;;) {
1385 AVPacket pkt;
1386 int fifo_bytes;
1387 av_init_packet(&pkt);
1388 pkt.stream_index= ost->index;
1389
1390 switch(ost->st->codec->codec_type) {
1391 case CODEC_TYPE_AUDIO:
1392 fifo_bytes = fifo_size(&ost->fifo, NULL);
1393 ret = 0;
1394 /* encode any samples remaining in fifo */
1395 if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1396 int fs_tmp = enc->frame_size;
1397 enc->frame_size = fifo_bytes / (2 * enc->channels);
1398 if(fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes,
1399 &ost->fifo.rptr) == 0) {
1400 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
1401 }
1402 enc->frame_size = fs_tmp;
1403 }
1404 if(ret <= 0) {
1405 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1406 }
1407 audio_size += ret;
1408 pkt.flags |= PKT_FLAG_KEY;
1409 break;
1410 case CODEC_TYPE_VIDEO:
1411 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1412 video_size += ret;
1413 if(enc->coded_frame && enc->coded_frame->key_frame)
1414 pkt.flags |= PKT_FLAG_KEY;
1415 if (ost->logfile && enc->stats_out) {
1416 fprintf(ost->logfile, "%s", enc->stats_out);
1417 }
1418 break;
1419 default:
1420 ret=-1;
1421 }
1422
1423 if(ret<=0)
1424 break;
1425 pkt.data= bit_buffer;
1426 pkt.size= ret;
1427 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1428 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1429 write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
1430 }
1431 }
1432 }
1433 }
1434 }
1435
1436 return 0;
1437 fail_decode:
1438 return -1;
1439 }
1440
1441
1442 /*
1443 * The following code is the main loop of the file converter
1444 */
1445 static int av_encode(AVFormatContext **output_files,
1446 int nb_output_files,
1447 AVFormatContext **input_files,
1448 int nb_input_files,
1449 AVStreamMap *stream_maps, int nb_stream_maps)
1450 {
1451 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1452 AVFormatContext *is, *os;
1453 AVCodecContext *codec, *icodec;
1454 AVOutputStream *ost, **ost_table = NULL;
1455 AVInputStream *ist, **ist_table = NULL;
1456 AVInputFile *file_table;
1457 AVFormatContext *stream_no_data;
1458 int key;
1459
1460 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1461 if (!file_table)
1462 goto fail;
1463
1464 /* input stream init */
1465 j = 0;
1466 for(i=0;i<nb_input_files;i++) {
1467 is = input_files[i];
1468 file_table[i].ist_index = j;
1469 file_table[i].nb_streams = is->nb_streams;
1470 j += is->nb_streams;
1471 }
1472 nb_istreams = j;
1473
1474 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1475 if (!ist_table)
1476 goto fail;
1477
1478 for(i=0;i<nb_istreams;i++) {
1479 ist = av_mallocz(sizeof(AVInputStream));
1480 if (!ist)
1481 goto fail;
1482 ist_table[i] = ist;
1483 }
1484 j = 0;
1485 for(i=0;i<nb_input_files;i++) {
1486 is = input_files[i];
1487 for(k=0;k<is->nb_streams;k++) {
1488 ist = ist_table[j++];
1489 ist->st = is->streams[k];
1490 ist->file_index = i;
1491 ist->index = k;
1492 ist->discard = 1; /* the stream is discarded by default
1493 (changed later) */
1494
1495 if (ist->st->codec->rate_emu) {
1496 ist->start = av_gettime();
1497 ist->frame = 0;
1498 }
1499 }
1500 }
1501
1502 /* output stream init */
1503 nb_ostreams = 0;
1504 for(i=0;i<nb_output_files;i++) {
1505 os = output_files[i];
1506 nb_ostreams += os->nb_streams;
1507 }
1508 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1509 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1510 exit(1);
1511 }
1512
1513 /* Sanity check the mapping args -- do the input files & streams exist? */
1514 for(i=0;i<nb_stream_maps;i++) {
1515 int fi = stream_maps[i].file_index;
1516 int si = stream_maps[i].stream_index;
1517
1518 if (fi < 0 || fi > nb_input_files - 1 ||
1519 si < 0 || si > file_table[fi].nb_streams - 1) {
1520 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1521 exit(1);
1522 }
1523 fi = stream_maps[i].sync_file_index;
1524 si = stream_maps[i].sync_stream_index;
1525 if (fi < 0 || fi > nb_input_files - 1 ||
1526 si < 0 || si > file_table[fi].nb_streams - 1) {
1527 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1528 exit(1);
1529 }
1530 }
1531
1532 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1533 if (!ost_table)
1534 goto fail;
1535 for(i=0;i<nb_ostreams;i++) {
1536 ost = av_mallocz(sizeof(AVOutputStream));
1537 if (!ost)
1538 goto fail;
1539 ost_table[i] = ost;
1540 }
1541
1542 n = 0;
1543 for(k=0;k<nb_output_files;k++) {
1544 os = output_files[k];
1545 for(i=0;i<os->nb_streams;i++) {
1546 int found;
1547 ost = ost_table[n++];
1548 ost->file_index = k;
1549 ost->index = i;
1550 ost->st = os->streams[i];
1551 if (nb_stream_maps > 0) {
1552 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1553 stream_maps[n-1].stream_index;
1554
1555 /* Sanity check that the stream types match */
1556 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1557 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1558 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1559 ost->file_index, ost->index);
1560 exit(1);
1561 }
1562
1563 } else {
1564 /* get corresponding input stream index : we select the first one with the right type */
1565 found = 0;
1566 for(j=0;j<nb_istreams;j++) {
1567 ist = ist_table[j];
1568 if (ist->discard &&
1569 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1570 ost->source_index = j;
1571 found = 1;
1572 break;
1573 }
1574 }
1575
1576 if (!found) {
1577 /* try again and reuse existing stream */
1578 for(j=0;j<nb_istreams;j++) {
1579 ist = ist_table[j];
1580 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1581 ost->source_index = j;
1582 found = 1;
1583 }
1584 }
1585 if (!found) {
1586 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1587 ost->file_index, ost->index);
1588 exit(1);
1589 }
1590 }
1591 }
1592 ist = ist_table[ost->source_index];
1593 ist->discard = 0;
1594 ost->sync_ist = (nb_stream_maps > 0) ?
1595 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1596 stream_maps[n-1].sync_stream_index] : ist;
1597 }
1598 }
1599
1600 /* for each output stream, we compute the right encoding parameters */
1601 for(i=0;i<nb_ostreams;i++) {
1602 ost = ost_table[i];
1603 ist = ist_table[ost->source_index];
1604
1605 codec = ost->st->codec;
1606 icodec = ist->st->codec;
1607
1608 if (ost->st->stream_copy) {
1609 /* if stream_copy is selected, no need to decode or encode */
1610 codec->codec_id = icodec->codec_id;
1611 codec->codec_type = icodec->codec_type;
1612 if(!codec->codec_tag) codec->codec_tag = icodec->codec_tag;
1613 codec->bit_rate = icodec->bit_rate;
1614 codec->extradata= icodec->extradata;
1615 codec->extradata_size= icodec->extradata_size;
1616 codec->time_base = icodec->time_base;
1617 switch(codec->codec_type) {
1618 case CODEC_TYPE_AUDIO:
1619 codec->sample_rate = icodec->sample_rate;
1620 codec->channels = icodec->channels;
1621 codec->frame_size = icodec->frame_size;
1622 codec->block_align= icodec->block_align;
1623 break;
1624 case CODEC_TYPE_VIDEO:
1625 codec->pix_fmt = icodec->pix_fmt;
1626 codec->width = icodec->width;
1627 codec->height = icodec->height;
1628 codec->has_b_frames = icodec->has_b_frames;
1629 break;
1630 case CODEC_TYPE_SUBTITLE:
1631 break;
1632 default:
1633 av_abort();
1634 }
1635 } else {
1636 switch(codec->codec_type) {
1637 case CODEC_TYPE_AUDIO:
1638 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1639 goto fail;
1640
1641 if (codec->channels == icodec->channels &&
1642 codec->sample_rate == icodec->sample_rate) {
1643 ost->audio_resample = 0;
1644 } else {
1645 if (codec->channels != icodec->channels &&
1646 (icodec->codec_id == CODEC_ID_AC3 ||
1647 icodec->codec_id == CODEC_ID_DTS)) {
1648 /* Special case for 5:1 AC3 and DTS input */
1649 /* and mono or stereo output */
1650 /* Request specific number of channels */
1651 icodec->channels = codec->channels;
1652 if (codec->sample_rate == icodec->sample_rate)
1653 ost->audio_resample = 0;
1654 else {
1655 ost->audio_resample = 1;
1656 }
1657 } else {
1658 ost->audio_resample = 1;
1659 }
1660 }
1661 if(audio_sync_method>1)
1662 ost->audio_resample = 1;
1663
1664 if(ost->audio_resample){
1665 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1666 codec->sample_rate, icodec->sample_rate);
1667 if(!ost->resample){
1668 printf("Can't resample. Aborting.\n");
1669 av_abort();
1670 }
1671 }
1672 ist->decoding_needed = 1;
1673 ost->encoding_needed = 1;
1674 break;
1675 case CODEC_TYPE_VIDEO:
1676 ost->video_crop = ((frame_leftBand + frame_rightBand + frame_topBand + frame_bottomBand) != 0);
1677 ost->video_pad = ((frame_padleft + frame_padright + frame_padtop + frame_padbottom) != 0);
1678 ost->video_resample = ((codec->width != icodec->width -
1679 (frame_leftBand + frame_rightBand) +
1680 (frame_padleft + frame_padright)) ||
1681 (codec->height != icodec->height -
1682 (frame_topBand + frame_bottomBand) +
1683 (frame_padtop + frame_padbottom)));
1684 if (ost->video_crop) {
1685 ost->topBand = frame_topBand;
1686 ost->leftBand = frame_leftBand;
1687 }
1688 if (ost->video_pad) {
1689 ost->padtop = frame_padtop;
1690 ost->padleft = frame_padleft;
1691 ost->padbottom = frame_padbottom;
1692 ost->padright = frame_padright;
1693 if (!ost->video_resample) {
1694 avcodec_get_frame_defaults(&ost->pict_tmp);
1695 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1696 codec->width, codec->height ) )
1697 goto fail;
1698 }
1699 }
1700 if (ost->video_resample) {
1701 avcodec_get_frame_defaults(&ost->pict_tmp);
1702 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1703 codec->width, codec->height ) )
1704 goto fail;
1705
1706 ost->img_resample_ctx = img_resample_init(
1707 codec->width - (frame_padleft + frame_padright),
1708 codec->height - (frame_padtop + frame_padbottom),
1709 icodec->width - (frame_leftBand + frame_rightBand),
1710 icodec->height - (frame_topBand + frame_bottomBand));
1711
1712 }
1713 ost->encoding_needed = 1;
1714 ist->decoding_needed = 1;
1715 break;
1716 case CODEC_TYPE_SUBTITLE:
1717 ost->encoding_needed = 1;
1718 ist->decoding_needed = 1;
1719 break;
1720 default:
1721 av_abort();
1722 break;
1723 }
1724 /* two pass mode */
1725 if (ost->encoding_needed &&
1726 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1727 char logfilename[1024];
1728 FILE *f;
1729 int size;
1730 char *logbuffer;
1731
1732 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1733 pass_logfilename ?
1734 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1735 if (codec->flags & CODEC_FLAG_PASS1) {
1736 f = fopen(logfilename, "w");
1737 if (!f) {
1738 perror(logfilename);
1739 exit(1);
1740 }
1741 ost->logfile = f;
1742 } else {
1743 /* read the log file */
1744 f = fopen(logfilename, "r");
1745 if (!f) {
1746 perror(logfilename);
1747 exit(1);
1748 }
1749 fseek(f, 0, SEEK_END);
1750 size = ftell(f);
1751 fseek(f, 0, SEEK_SET);
1752 logbuffer = av_malloc(size + 1);
1753 if (!logbuffer) {
1754 fprintf(stderr, "Could not allocate log buffer\n");
1755 exit(1);
1756 }
1757 size = fread(logbuffer, 1, size, f);
1758 fclose(f);
1759 logbuffer[size] = '\0';
1760 codec->stats_in = logbuffer;
1761 }
1762 }
1763 }
1764 if(codec->codec_type == CODEC_TYPE_VIDEO){
1765 int size= codec->width * codec->height;
1766 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1767 }
1768 }
1769
1770 if (!bit_buffer)
1771 bit_buffer = av_malloc(bit_buffer_size);
1772 if (!bit_buffer)
1773 goto fail;
1774
1775 /* dump the file output parameters - cannot be done before in case
1776 of stream copy */
1777 for(i=0;i<nb_output_files;i++) {
1778 dump_format(output_files[i], i, output_files[i]->filename, 1);
1779 }
1780
1781 /* dump the stream mapping */
1782 if (verbose >= 0) {
1783 fprintf(stderr, "Stream mapping:\n");
1784 for(i=0;i<nb_ostreams;i++) {
1785 ost = ost_table[i];
1786 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1787 ist_table[ost->source_index]->file_index,
1788 ist_table[ost->source_index]->index,
1789 ost->file_index,
1790 ost->index);
1791 if (ost->sync_ist != ist_table[ost->source_index])
1792 fprintf(stderr, " [sync #%d.%d]",
1793 ost->sync_ist->file_index,
1794 ost->sync_ist->index);
1795 fprintf(stderr, "\n");
1796 }
1797 }
1798
1799 /* open each encoder */
1800 for(i=0;i<nb_ostreams;i++) {
1801 ost = ost_table[i];
1802 if (ost->encoding_needed) {
1803 AVCodec *codec;
1804 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1805 if (!codec) {
1806 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1807 ost->file_index, ost->index);
1808 exit(1);
1809 }
1810 if (avcodec_open(ost->st->codec, codec) < 0) {
1811 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1812 ost->file_index, ost->index);
1813 exit(1);
1814 }
1815 extra_size += ost->st->codec->extradata_size;
1816 }
1817 }
1818
1819 /* open each decoder */
1820 for(i=0;i<nb_istreams;i++) {
1821 ist = ist_table[i];
1822 if (ist->decoding_needed) {
1823 AVCodec *codec;
1824 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1825 if (!codec) {
1826 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1827 ist->st->codec->codec_id, ist->file_index, ist->index);
1828 exit(1);
1829 }
1830 if (avcodec_open(ist->st->codec, codec) < 0) {
1831 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1832 ist->file_index, ist->index);
1833 exit(1);
1834 }
1835 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1836 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1837 }
1838 }
1839
1840 /* init pts */
1841 for(i=0;i<nb_istreams;i++) {
1842 ist = ist_table[i];
1843 is = input_files[ist->file_index];
1844 ist->pts = 0;
1845 ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1846 if(ist->st->start_time == AV_NOPTS_VALUE)
1847 ist->next_pts=0;
1848 if(input_files_ts_offset[ist->file_index])
1849 ist->next_pts= AV_NOPTS_VALUE;
1850 ist->is_start = 1;
1851 }
1852
1853 /* compute buffer size max (should use a complete heuristic) */
1854 for(i=0;i<nb_input_files;i++) {
1855 file_table[i].buffer_size_max = 2048;
1856 }
1857
1858 /* set meta data information from input file if required */
1859 for (i=0;i<nb_meta_data_maps;i++) {
1860 AVFormatContext *out_file;
1861 AVFormatContext *in_file;
1862
1863 int out_file_index = meta_data_maps[i].out_file;
1864 int in_file_index = meta_data_maps[i].in_file;
1865 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1866 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1867 ret = -EINVAL;
1868 goto fail;
1869 }
1870 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1871 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1872 ret = -EINVAL;
1873 goto fail;
1874 }
1875
1876 out_file = output_files[out_file_index];
1877 in_file = input_files[in_file_index];
1878
1879 strcpy(out_file->title, in_file->title);
1880 strcpy(out_file->author, in_file->author);
1881 strcpy(out_file->copyright, in_file->copyright);
1882 strcpy(out_file->comment, in_file->comment);
1883 strcpy(out_file->album, in_file->album);
1884 out_file->year = in_file->year;
1885 out_file->track = in_file->track;
1886 strcpy(out_file->genre, in_file->genre);
1887 }
1888
1889 /* open files and write file headers */
1890 for(i=0;i<nb_output_files;i++) {
1891 os = output_files[i];
1892 if (av_write_header(os) < 0) {
1893 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1894 ret = -EINVAL;
1895 goto fail;
1896 }
1897 }
1898
1899 #ifndef CONFIG_WIN32
1900 if ( !using_stdin && verbose >= 0) {
1901 fprintf(stderr, "Press [q] to stop encoding\n");
1902 url_set_interrupt_cb(decode_interrupt_cb);
1903 }
1904 #endif
1905 term_init();
1906
1907 stream_no_data = 0;
1908 key = -1;
1909
1910 for(; received_sigterm == 0;) {
1911 int file_index, ist_index;
1912 AVPacket pkt;
1913 double ipts_min;
1914 double opts_min;
1915
1916 redo:
1917 ipts_min= 1e100;
1918 opts_min= 1e100;
1919 /* if 'q' pressed, exits */
1920 if (!using_stdin) {
1921 if (q_pressed)
1922 break;
1923 /* read_key() returns 0 on EOF */
1924 key = read_key();
1925 if (key == 'q')
1926 break;
1927 }
1928
1929 /* select the stream that we must read now by looking at the
1930 smallest output pts */
1931 file_index = -1;
1932 for(i=0;i<nb_ostreams;i++) {
1933 double ipts, opts;
1934 ost = ost_table[i];
1935 os = output_files[ost->file_index];
1936 ist = ist_table[ost->source_index];
1937 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1938 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
1939 else
1940 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
1941 ipts = (double)ist->pts;
1942 if (!file_table[ist->file_index].eof_reached){
1943 if(ipts < ipts_min) {
1944 ipts_min = ipts;
1945 if(input_sync ) file_index = ist->file_index;
1946 }
1947 if(opts < opts_min) {
1948 opts_min = opts;
1949 if(!input_sync) file_index = ist->file_index;
1950 }
1951 }
1952 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
1953 file_index= -1;
1954 break;
1955 }
1956 }
1957 /* if none, if is finished */
1958 if (file_index < 0) {
1959 break;
1960 }
1961
1962 /* finish if recording time exhausted */
1963 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
1964 break;
1965
1966 /* finish if limit size exhausted */
1967 if (limit_filesize != 0 && (limit_filesize * 1024) < url_ftell(&output_files[0]->pb))
1968 break;
1969
1970 /* read a frame from it and output it in the fifo */
1971 is = input_files[file_index];
1972 if (av_read_frame(is, &pkt) < 0) {
1973 file_table[file_index].eof_reached = 1;
1974 if (opt_shortest) break; else continue; //
1975 }
1976
1977 if (!pkt.size) {
1978 stream_no_data = is;
1979 } else {
1980 stream_no_data = 0;
1981 }
1982 if (do_pkt_dump) {
1983 av_pkt_dump(stdout, &pkt, do_hex_dump);
1984 }
1985 /* the following test is needed in case new streams appear
1986 dynamically in stream : we ignore them */
1987 if (pkt.stream_index >= file_table[file_index].nb_streams)
1988 goto discard_packet;
1989 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1990 ist = ist_table[ist_index];
1991 if (ist->discard)
1992 goto discard_packet;
1993
1994 // 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);
1995 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
1996 int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
1997 if(ABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE && !copy_ts){
1998 input_files_ts_offset[ist->file_index]-= delta;
1999 if (verbose > 2)
2000 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2001 for(i=0; i<file_table[file_index].nb_streams; i++){
2002 int index= file_table[file_index].ist_index + i;
2003 ist_table[index]->next_pts += delta;
2004 ist_table[index]->is_start=1;
2005 }
2006 }
2007 }
2008
2009 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2010 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2011
2012 if (verbose >= 0)
2013 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2014 ist->file_index, ist->index);
2015
2016 av_free_packet(&pkt);
2017 goto redo;
2018 }
2019
2020 discard_packet:
2021 av_free_packet(&pkt);
2022
2023 /* dump report by using the output first video and audio streams */
2024 print_report(output_files, ost_table, nb_ostreams, 0);
2025 }
2026
2027 /* at the end of stream, we must flush the decoder buffers */
2028 for(i=0;i<nb_istreams;i++) {
2029 ist = ist_table[i];
2030 if (ist->decoding_needed) {
2031 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2032 }
2033 }
2034
2035 term_exit();
2036
2037 /* write the trailer if needed and close file */
2038 for(i=0;i<nb_output_files;i++) {
2039 os = output_files[i];
2040 av_write_trailer(os);
2041 }
2042
2043 /* dump report by using the first video and audio streams */
2044 print_report(output_files, ost_table, nb_ostreams, 1);
2045
2046 /* close each encoder */
2047 for(i=0;i<nb_ostreams;i++) {
2048 ost = ost_table[i];
2049 if (ost->encoding_needed) {
2050 av_freep(&ost->st->codec->stats_in);
2051 avcodec_close(ost->st->codec);
2052 }
2053 }
2054
2055 /* close each decoder */
2056 for(i=0;i<nb_istreams;i++) {
2057 ist = ist_table[i];
2058 if (ist->decoding_needed) {
2059 avcodec_close(ist->st->codec);
2060 }
2061 }
2062
2063 /* finished ! */
2064
2065 ret = 0;
2066 fail1:
2067 av_freep(&bit_buffer);
2068 av_free(file_table);
2069
2070 if (ist_table) {
2071 for(i=0;i<nb_istreams;i++) {
2072 ist = ist_table[i];
2073 av_free(ist);
2074 }
2075 av_free(ist_table);
2076 }
2077 if (ost_table) {
2078 for(i=0;i<nb_ostreams;i++) {
2079 ost = ost_table[i];
2080 if (ost) {
2081 if (ost->logfile) {
2082 fclose(ost->logfile);
2083 ost->logfile = NULL;
2084 }
2085 fifo_free(&ost->fifo); /* works even if fifo is not
2086 initialized but set to zero */
2087 av_free(ost->pict_tmp.data[0]);
2088 if (ost->video_resample)
2089 img_resample_close(ost->img_resample_ctx);
2090 if (ost->audio_resample)
2091 audio_resample_close(ost->resample);
2092 av_free(ost);
2093 }
2094 }
2095 av_free(ost_table);
2096 }
2097 return ret;
2098 fail:
2099 ret = -ENOMEM;
2100 goto fail1;
2101 }
2102
2103 #if 0
2104 int file_read(const char *filename)
2105 {
2106 URLContext *h;
2107 unsigned char buffer[1024];
2108 int len, i;
2109
2110 if (url_open(&h, filename, O_RDONLY) < 0) {
2111 printf("could not open '%s'\n", filename);
2112 return -1;
2113 }
2114 for(;;) {
2115 len = url_read(h, buffer, sizeof(buffer));
2116 if (len <= 0)
2117 break;
2118 for(i=0;i<len;i++) putchar(buffer[i]);
2119 }
2120 url_close(h);
2121 return 0;
2122 }
2123 #endif
2124
2125 static void opt_image_format(const char *arg)
2126 {
2127 AVImageFormat *f;
2128
2129 for(f = first_image_format; f != NULL; f = f->next) {
2130 if (!strcmp(arg, f->name))
2131 break;
2132 }
2133 if (!f) {
2134 fprintf(stderr, "Unknown image format: '%s'\n", arg);
2135 exit(1);
2136 }
2137 image_format = f;
2138 }
2139
2140 static void opt_format(const char *arg)
2141 {
2142 /* compatibility stuff for pgmyuv */
2143 if (!strcmp(arg, "pgmyuv")) {
2144 pgmyuv_compatibility_hack=1;
2145 // opt_image_format(arg);
2146 arg = "image2";
2147 }
2148
2149 file_iformat = av_find_input_format(arg);
2150 file_oformat = guess_format(arg, NULL, NULL);
2151 if (!file_iformat && !file_oformat) {
2152 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2153 exit(1);
2154 }
2155 }
2156
2157 static void opt_video_bitrate(const char *arg)
2158 {
2159 video_bit_rate = atoi(arg) * 1000;
2160 }
2161
2162 static void opt_video_bitrate_tolerance(const char *arg)
2163 {
2164 video_bit_rate_tolerance = atoi(arg) * 1000;
2165 }
2166
2167 static void opt_video_bitrate_max(const char *arg)
2168 {
2169 video_rc_max_rate = atoi(arg) * 1000;
2170 }
2171
2172 static void opt_video_bitrate_min(const char *arg)
2173 {
2174 video_rc_min_rate = atoi(arg) * 1000;
2175 }
2176
2177 static void opt_video_buffer_size(const char *arg)
2178 {
2179 video_rc_buffer_size = atoi(arg) * 8*1024;
2180 }
2181
2182 static void opt_video_rc_eq(char *arg)
2183 {
2184 video_rc_eq = arg;
2185 }
2186
2187 static void opt_video_rc_override_string(char *arg)
2188 {
2189 video_rc_override_string = arg;
2190 }
2191
2192
2193 static void opt_workaround_bugs(const char *arg)
2194 {
2195 workaround_bugs = atoi(arg);
2196 }
2197
2198 static void opt_me_threshold(const char *arg)
2199 {
2200 me_threshold = atoi(arg);
2201 }
2202
2203 static void opt_mb_threshold(const char *arg)
2204 {
2205 mb_threshold = atoi(arg);
2206 }
2207
2208 static void opt_verbose(const char *arg)
2209 {
2210 verbose = atoi(arg);
2211 av_log_set_level(atoi(arg));
2212 }
2213
2214 static void opt_frame_rate(const char *arg)
2215 {
2216 if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
2217 fprintf(stderr, "Incorrect frame rate\n");
2218 exit(1);
2219 }
2220 }
2221
2222 static void opt_frame_crop_top(const char *arg)
2223 {
2224 frame_topBand = atoi(arg);
2225 if (frame_topBand < 0) {
2226 fprintf(stderr, "Incorrect top crop size\n");
2227 exit(1);
2228 }
2229 if ((frame_topBand % 2) != 0) {
2230 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2231 exit(1);
2232 }
2233 if ((frame_topBand) >= frame_height){
2234 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2235 exit(1);
2236 }
2237 frame_height -= frame_topBand;
2238 }
2239
2240 static void opt_frame_crop_bottom(const char *arg)
2241 {
2242 frame_bottomBand = atoi(arg);
2243 if (frame_bottomBand < 0) {
2244 fprintf(stderr, "Incorrect bottom crop size\n");
2245 exit(1);
2246 }
2247 if ((frame_bottomBand % 2) != 0) {
2248 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2249 exit(1);
2250 }
2251 if ((frame_bottomBand) >= frame_height){
2252 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2253 exit(1);
2254 }
2255 frame_height -= frame_bottomBand;
2256 }
2257
2258 static void opt_frame_crop_left(const char *arg)
2259 {
2260 frame_leftBand = atoi(arg);
2261 if (frame_leftBand < 0) {
2262 fprintf(stderr, "Incorrect left crop size\n");
2263 exit(1);
2264 }
2265 if ((frame_leftBand % 2) != 0) {
2266 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2267 exit(1);
2268 }
2269 if ((frame_leftBand) >= frame_width){
2270 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2271 exit(1);
2272 }
2273 frame_width -= frame_leftBand;
2274 }
2275
2276 static void opt_frame_crop_right(const char *arg)
2277 {
2278 frame_rightBand = atoi(arg);
2279 if (frame_rightBand < 0) {
2280 fprintf(stderr, "Incorrect right crop size\n");
2281 exit(1);
2282 }
2283 if ((frame_rightBand % 2) != 0) {
2284 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2285 exit(1);
2286 }
2287 if ((frame_rightBand) >= frame_width){
2288 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2289 exit(1);
2290 }
2291 frame_width -= frame_rightBand;
2292 }
2293
2294 static void opt_frame_size(const char *arg)
2295 {
2296 if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
2297 fprintf(stderr, "Incorrect frame size\n");
2298 exit(1);
2299 }
2300 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2301 fprintf(stderr, "Frame size must be a multiple of 2\n");
2302 exit(1);
2303 }
2304 }
2305
2306
2307 #define SCALEBITS 10
2308 #define ONE_HALF (1 << (SCALEBITS - 1))
2309 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2310
2311 #define RGB_TO_Y(r, g, b) \
2312 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2313 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2314
2315 #define RGB_TO_U(r1, g1, b1, shift)\
2316 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2317 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2318
2319 #define RGB_TO_V(r1, g1, b1, shift)\
2320 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2321 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2322
2323 static void opt_pad_color(const char *arg) {
2324 /* Input is expected to be six hex digits similar to
2325 how colors are expressed in html tags (but without the #) */
2326 int rgb = strtol(arg, NULL, 16);
2327 int r,g,b;
2328
2329 r = (rgb >> 16);
2330 g = ((rgb >> 8) & 255);
2331 b = (rgb & 255);
2332
2333 padcolor[0] = RGB_TO_Y(r,g,b);
2334 padcolor[1] = RGB_TO_U(r,g,b,0);
2335 padcolor[2] = RGB_TO_V(r,g,b,0);
2336 }
2337
2338 static void opt_frame_pad_top(const char *arg)
2339 {
2340 frame_padtop = atoi(arg);
2341 if (frame_padtop < 0) {
2342 fprintf(stderr, "Incorrect top pad size\n");
2343 exit(1);
2344 }
2345 if ((frame_padtop % 2) != 0) {
2346 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2347 exit(1);
2348 }
2349 }
2350
2351 static void opt_frame_pad_bottom(const char *arg)
2352 {
2353 frame_padbottom = atoi(arg);
2354 if (frame_padbottom < 0) {
2355 fprintf(stderr, "Incorrect bottom pad size\n");
2356 exit(1);
2357 }
2358 if ((frame_padbottom % 2) != 0) {
2359 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2360 exit(1);
2361 }
2362 }
2363
2364
2365 static void opt_frame_pad_left(const char *arg)
2366 {
2367 frame_padleft = atoi(arg);
2368 if (frame_padleft < 0) {
2369 fprintf(stderr, "Incorrect left pad size\n");
2370 exit(1);
2371 }
2372 if ((frame_padleft % 2) != 0) {
2373 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2374 exit(1);
2375 }
2376 }
2377
2378
2379 static void opt_frame_pad_right(const char *arg)
2380 {
2381 frame_padright = atoi(arg);
2382 if (frame_padright < 0) {
2383 fprintf(stderr, "Incorrect right pad size\n");
2384 exit(1);
2385 }
2386 if ((frame_padright % 2) != 0) {
2387 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2388 exit(1);
2389 }
2390 }
2391
2392
2393 static void opt_frame_pix_fmt(const char *arg)
2394 {
2395 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2396 }
2397
2398 static void opt_frame_aspect_ratio(const char *arg)
2399 {
2400 int x = 0, y = 0;
2401 double ar = 0;
2402 const char *p;
2403
2404 p = strchr(arg, ':');
2405 if (p) {
2406 x = strtol(arg, (char **)&arg, 10);
2407 if (arg == p)
2408 y = strtol(arg+1, (char **)&arg, 10);
2409 if (x > 0 && y > 0)
2410 ar = (double)x / (double)y;
2411 } else
2412 ar = strtod(arg, (char **)&arg);
2413
2414 if (!ar) {
2415 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2416 exit(1);
2417 }
2418 frame_aspect_ratio = ar;
2419 }
2420
2421 static void opt_gop_size(const char *arg)
2422 {
2423 gop_size = atoi(arg);
2424 }
2425
2426 static void opt_b_frames(const char *arg)
2427 {
2428 b_frames = atoi(arg);
2429 if (b_frames > FF_MAX_B_FRAMES) {
2430 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
2431 exit(1);
2432 } else if (b_frames < 1) {
2433 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
2434 exit(1);
2435 }
2436 }
2437
2438 static void opt_pre_me(const char *arg)
2439 {
2440 pre_me = atoi(arg);
2441 }
2442
2443 static void opt_qscale(const char *arg)
2444 {
2445 video_qscale = atof(arg);
2446 if (video_qscale <= 0 ||
2447 video_qscale > 255) {
2448 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2449 exit(1);
2450 }
2451 }
2452
2453 static void opt_qsquish(const char *arg)
2454 {
2455 video_qsquish = atof(arg);
2456 if (video_qsquish < 0.0 ||
2457 video_qsquish > 99.0) {
2458 fprintf(stderr, "qsquish must be >= 0.0 and <= 99.0\n");
2459 exit(1);
2460 }
2461 }
2462
2463 static void opt_lmax(const char *arg)
2464 {
2465 video_lmax = atof(arg)*FF_QP2LAMBDA;
2466 }
2467
2468 static void opt_lmin(const char *arg)
2469 {
2470 video_lmin = atof(arg)*FF_QP2LAMBDA;
2471 }
2472
2473 static void opt_qmin(const char *arg)
2474 {
2475 video_qmin = atoi(arg);
2476 if (video_qmin < 1 ||
2477 video_qmin > 51) {
2478 fprintf(stderr, "qmin must be >= 1 and <= 51\n");
2479 exit(1);
2480 }
2481 }
2482
2483 static void opt_qmax(const char *arg)
2484 {
2485 video_qmax = atoi(arg);
2486 if (video_qmax < 1 ||
2487 video_qmax > 51) {
2488 fprintf(stderr, "qmax must be >= 1 and <= 51\n");
2489 exit(1);
2490 }
2491 }
2492
2493 static void opt_mb_lmin(const char *arg)
2494 {
2495 video_mb_lmin = atof(arg)*FF_QP2LAMBDA;
2496 if (video_mb_lmin < 1 ||
2497 video_mb_lmin > FF_LAMBDA_MAX) {
2498 fprintf(stderr, "mblmin must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2499 exit(1);
2500 }
2501 }
2502
2503 static void opt_mb_lmax(const char *arg)
2504 {
2505 video_mb_lmax = atof(arg)*FF_QP2LAMBDA;
2506 if (video_mb_lmax < 1 ||
2507 video_mb_lmax > FF_LAMBDA_MAX) {
2508 fprintf(stderr, "mblmax must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2509 exit(1);
2510 }
2511 }
2512
2513 static void opt_qdiff(const char *arg)
2514 {
2515 video_qdiff = atoi(arg);
2516 if (video_qdiff < 0 ||
2517 video_qdiff > 31) {
2518 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2519 exit(1);
2520 }
2521 }
2522
2523 static void opt_qblur(const char *arg)
2524 {
2525 video_qblur = atof(arg);
2526 }
2527
2528 static void opt_qcomp(const char *arg)
2529 {
2530 video_qcomp = atof(arg);
2531 }
2532
2533 static void opt_rc_initial_cplx(const char *arg)
2534 {
2535 video_rc_initial_cplx = atof(arg);
2536 }
2537 static void opt_b_qfactor(const char *arg)
2538 {
2539 video_b_qfactor = atof(arg);
2540 }
2541 static void opt_i_qfactor(const char *arg)
2542 {
2543 video_i_qfactor = atof(arg);
2544 }
2545 static void opt_b_qoffset(const char *arg)
2546 {
2547 video_b_qoffset = atof(arg);
2548 }
2549 static void opt_i_qoffset(const char *arg)
2550 {
2551 video_i_qoffset = atof(arg);
2552 }
2553
2554 static void opt_ibias(const char *arg)
2555 {
2556 video_intra_quant_bias = atoi(arg);
2557 }
2558 static void opt_pbias(const char *arg)
2559 {
2560 video_inter_quant_bias = atoi(arg);
2561 }
2562
2563 static void opt_packet_size(const char *arg)
2564 {
2565 packet_size= atoi(arg);
2566 }
2567
2568 static void opt_error_rate(const char *arg)
2569 {
2570 error_rate= atoi(arg);
2571 }
2572
2573 static void opt_strict(const char *arg)
2574 {
2575 strict= atoi(arg);
2576 }
2577
2578 static void opt_top_field_first(const char *arg)
2579 {
2580 top_field_first= atoi(arg);
2581 }
2582
2583 static void opt_sc_threshold(const char *arg)
2584 {
2585 sc_threshold= atoi(arg);
2586 }
2587
2588 static void opt_me_range(const char *arg)
2589 {
2590 me_range = atoi(arg);
2591 }
2592
2593 static void opt_thread_count(const char *arg)
2594 {
2595 thread_count= atoi(arg);
2596 #if !defined(HAVE_THREADS)
2597 if (verbose >= 0)
2598 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2599 #endif
2600 }
2601
2602 static void opt_audio_bitrate(const char *arg)
2603 {
2604 audio_bit_rate = atoi(arg) * 1000;
2605 }
2606
2607 static void opt_audio_rate(const char *arg)
2608 {
2609 audio_sample_rate = atoi(arg);
2610 }
2611
2612 static void opt_audio_channels(const char *arg)
2613 {
2614 audio_channels = atoi(arg);
2615 }
2616
2617 static void opt_video_device(const char *arg)
2618 {
2619 video_device = av_strdup(arg);
2620 }
2621
2622 static void opt_grab_device(const char *arg)
2623 {
2624 grab_device = av_strdup(arg);
2625 }
2626
2627 static void opt_video_channel(const char *arg)
2628 {
2629 video_channel = strtol(arg, NULL, 0);
2630 }
2631
2632 static void opt_video_standard(const char *arg)
2633 {
2634 video_standard = av_strdup(arg);
2635 }
2636
2637 static void opt_audio_device(const char *arg)
2638 {
2639 audio_device = av_strdup(arg);
2640 }
2641
2642 static void opt_codec(int *pstream_copy, int *pcodec_id,
2643 int codec_type, const char *arg)
2644 {
2645 AVCodec *p;
2646
2647 if (!strcmp(arg, "copy")) {
2648 *pstream_copy = 1;
2649 } else {
2650 p = first_avcodec;
2651 while (p) {
2652 if (!strcmp(p->name, arg) && p->type == codec_type)
2653 break;
2654 p = p->next;
2655 }
2656 if (p == NULL) {
2657 fprintf(stderr, "Unknown codec '%s'\n", arg);
2658 exit(1);
2659 } else {
2660 *pcodec_id = p->id;
2661 }
2662 }
2663 }
2664
2665 static void opt_audio_codec(const char *arg)
2666 {
2667 opt_codec(&audio_stream_copy, &audio_codec_id, CODEC_TYPE_AUDIO, arg);
2668 }
2669
2670 static void opt_audio_tag(const char *arg)
2671 {
2672 char *tail;
2673 audio_codec_tag= strtol(arg, &tail, 0);
2674
2675 if(!tail || *tail)
2676 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2677 }
2678
2679 static void opt_video_tag(const char *arg)
2680 {
2681 char *tail;
2682 video_codec_tag= strtol(arg, &tail, 0);
2683
2684 if(!tail || *tail)
2685 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2686 }
2687
2688 static void add_frame_hooker(const char *arg)
2689 {
2690 int argc = 0;
2691 char *argv[64];
2692 int i;
2693 char *args = av_strdup(arg);
2694
2695 using_vhook = 1;
2696
2697 argv[0] = strtok(args, " ");
2698 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2699 }
2700
2701 i = frame_hook_add(argc, argv);
2702
2703 if (i != 0) {
2704 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2705 exit(1);
2706 }
2707 }
2708
2709 const char *motion_str[] = {
2710 "zero",
2711 "full",
2712 "log",
2713 "phods",
2714 "epzs",
2715 "x1",
2716 "hex",
2717 "umh",
2718 "iter",
2719 NULL,
2720 };
2721
2722 static void opt_motion_estimation(const char *arg)
2723 {
2724 const char **p;
2725 p = motion_str;
2726 for(;;) {
2727 if (!*p) {
2728 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2729 exit(1);
2730 }
2731 if (!strcmp(*p, arg))
2732 break;
2733 p++;
2734 }
2735 me_method = (p - motion_str) + 1;
2736 }
2737
2738 static void opt_video_codec(const char *arg)
2739 {
2740 opt_codec(&video_stream_copy, &video_codec_id, CODEC_TYPE_VIDEO, arg);
2741 }
2742
2743 static void opt_subtitle_codec(const char *arg)
2744 {
2745 opt_codec(&subtitle_stream_copy, &subtitle_codec_id, CODEC_TYPE_SUBTITLE, arg);
2746 }
2747
2748 static void opt_map(const char *arg)
2749 {
2750 AVStreamMap *m;
2751 const char *p;
2752
2753 p = arg;
2754 m = &stream_maps[nb_stream_maps++];
2755
2756 m->file_index = strtol(arg, (char **)&p, 0);
2757 if (*p)
2758 p++;
2759
2760 m->stream_index = strtol(p, (char **)&p, 0);
2761 if (*p) {
2762 p++;
2763 m->sync_file_index = strtol(p, (char **)&p, 0);
2764 if (*p)
2765 p++;
2766 m->sync_stream_index = strtol(p, (char **)&p, 0);
2767 } else {
2768 m->sync_file_index = m->file_index;
2769 m->sync_stream_index = m->stream_index;
2770 }
2771 }
2772
2773 static void opt_map_meta_data(const char *arg)
2774 {
2775 AVMetaDataMap *m;
2776 const char *p;
2777
2778 p = arg;
2779 m = &meta_data_maps[nb_meta_data_maps++];
2780
2781 m->out_file = strtol(arg, (char **)&p, 0);
2782 if (*p)
2783 p++;
2784
2785 m->in_file = strtol(p, (char **)&p, 0);
2786 }
2787
2788 static void opt_recording_time(const char *arg)
2789 {
2790 recording_time = parse_date(arg, 1);
2791 }
2792
2793 static void opt_start_time(const char *arg)
2794 {
2795 start_time = parse_date(arg, 1);
2796 }
2797
2798 static void opt_rec_timestamp(const char *arg)
2799 {
2800 rec_timestamp = parse_date(arg, 0) / 1000000;
2801 }
2802
2803 static void opt_input_ts_offset(const char *arg)
2804 {
2805 input_ts_offset = parse_date(arg, 1);
2806 }
2807
2808 static void opt_input_file(const char *filename)
2809 {
2810 AVFormatContext *ic;
2811 AVFormatParameters params, *ap = &params;
2812 int err, i, ret, rfps, rfps_base;
2813 int64_t timestamp;
2814
2815 if (!strcmp(filename, "-"))
2816 filename = "pipe:";
2817
2818 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2819 !strcmp( filename, "/dev/stdin" );
2820
2821 /* get default parameters from command line */
2822 memset(ap, 0, sizeof(*ap));
2823 ap->sample_rate = audio_sample_rate;
2824 ap->channels = audio_channels;
2825 ap->time_base.den = frame_rate;
2826 ap->time_base.num = frame_rate_base;
2827 ap->width = frame_width + frame_padleft + frame_padright;
2828 ap->height = frame_height + frame_padtop + frame_padbottom;
2829 ap->image_format = image_format;
2830 ap->pix_fmt = frame_pix_fmt;
2831 ap->device = grab_device;
2832 ap->channel = video_channel;
2833 ap->standard = video_standard;
2834 ap->video_codec_id = video_codec_id;
2835 ap->audio_codec_id = audio_codec_id;
2836 if(pgmyuv_compatibility_hack)
2837 ap->video_codec_id= CODEC_ID_PGMYUV;
2838
2839 /* open the input file with generic libav function */
2840 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2841 if (err < 0) {
2842 print_error(filename, err);
2843 exit(1);
2844 }
2845
2846 if(genpts)
2847 ic->flags|= AVFMT_FLAG_GENPTS;
2848
2849 /* If not enough info to get the stream parameters, we decode the
2850 first frames to get it. (used in mpeg case for example) */
2851 ret = av_find_stream_info(ic);
2852 if (ret < 0 && verbose >= 0) {
2853 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2854 exit(1);
2855 }
2856
2857 timestamp = start_time;
2858 /* add the stream start time */
2859 if (ic->start_time != AV_NOPTS_VALUE)
2860 timestamp += ic->start_time;
2861
2862 /* if seeking requested, we execute it */
2863 if (start_time != 0) {
2864 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2865 if (ret < 0) {
2866 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2867 filename, (double)timestamp / AV_TIME_BASE);
2868 }
2869 /* reset seek info */
2870 start_time = 0;
2871 }
2872
2873 /* update the current parameters so that they match the one of the input stream */
2874 for(i=0;i<ic->nb_streams;i++) {
2875 int j;
2876 AVCodecContext *enc = ic->streams[i]->codec;
2877 #if defined(HAVE_THREADS)
2878 if(thread_count>1)
2879 avcodec_thread_init(enc, thread_count);
2880 #endif
2881 enc->thread_count= thread_count;
2882 switch(enc->codec_type) {
2883 case CODEC_TYPE_AUDIO:
2884 for(j=0; j<opt_name_count; j++){
2885 AVOption *opt;
2886 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2887 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2888 av_set_double(enc, opt_names[j], d);
2889 }
2890 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2891 audio_channels = enc->channels;
2892 audio_sample_rate = enc->sample_rate;
2893 if(audio_disable)
2894 ic->streams[i]->discard= AVDISCARD_ALL;
2895 break;
2896 case CODEC_TYPE_VIDEO:
2897 for(j=0; j<opt_name_count; j++){
2898 AVOption *opt;
2899 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2900 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2901 av_set_double(enc, opt_names[j], d);
2902 }
2903 frame_height = enc->height;
2904 frame_width = enc->width;
2905 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2906 frame_pix_fmt = enc->pix_fmt;
2907 rfps = ic->streams[i]->r_frame_rate.num;
2908 rfps_base = ic->streams[i]->r_frame_rate.den;
2909 enc->workaround_bugs = workaround_bugs;
2910 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2911 if(me_threshold)
2912 enc->debug |= FF_DEBUG_MV;
2913
2914 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2915
2916 if (verbose >= 0)
2917 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2918 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2919
2920 (float)rfps / rfps_base, rfps, rfps_base);
2921 }
2922 /* update the current frame rate to match the stream frame rate */
2923 frame_rate = rfps;
2924 frame_rate_base = rfps_base;
2925
2926 enc->rate_emu = rate_emu;
2927 if(video_disable)
2928 ic->streams[i]->discard= AVDISCARD_ALL;
2929 else if(video_discard)
2930 ic->streams[i]->discard= video_discard;
2931 break;
2932 case CODEC_TYPE_DATA:
2933 break;
2934 case CODEC_TYPE_SUBTITLE:
2935 break;
2936 case CODEC_TYPE_UNKNOWN:
2937 break;
2938 default:
2939 av_abort();
2940 }
2941 }
2942
2943 input_files[nb_input_files] = ic;
2944 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
2945 /* dump the file content */
2946 if (verbose >= 0)
2947 dump_format(ic, nb_input_files, filename, 0);
2948
2949 nb_input_files++;
2950 file_iformat = NULL;
2951 file_oformat = NULL;
2952 image_format = NULL;
2953
2954 grab_device = NULL;
2955 video_channel = 0;
2956
2957 rate_emu = 0;
2958 }
2959
2960 static void opt_grab(const char *arg)
2961 {
2962 file_iformat = av_find_input_format(arg);
2963 opt_input_file("");
2964 }
2965
2966 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2967 {
2968 int has_video, has_audio, i, j;
2969 AVFormatContext *ic;
2970
2971 has_video = 0;
2972 has_audio = 0;
2973 for(j=0;j<nb_input_files;j++) {
2974 ic = input_files[j];
2975 for(i=0;i<ic->nb_streams;i++) {
2976 AVCodecContext *enc = ic->streams[i]->codec;
2977 switch(enc->codec_type) {
2978 case CODEC_TYPE_AUDIO:
2979 has_audio = 1;
2980 break;
2981 case CODEC_TYPE_VIDEO:
2982 has_video = 1;
2983 break;
2984 case CODEC_TYPE_DATA:
2985 case CODEC_TYPE_UNKNOWN:
2986 case CODEC_TYPE_SUBTITLE:
2987 break;
2988 default:
2989 av_abort();
2990 }
2991 }
2992 }
2993 *has_video_ptr = has_video;
2994 *has_audio_ptr = has_audio;
2995 }
2996
2997 static void new_video_stream(AVFormatContext *oc)
2998 {
2999 AVStream *st;
3000 AVCodecContext *video_enc;
3001 int codec_id;
3002
3003 st = av_new_stream(oc, oc->nb_streams);
3004 if (!st) {
3005 fprintf(stderr, "Could not alloc stream\n");
3006 exit(1);
3007 }
3008 bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
3009 video_bitstream_filters= NULL;
3010
3011 #if defined(HAVE_THREADS)
3012 if(thread_count>1)
3013 avcodec_thread_init(st->codec, thread_count);
3014 #endif
3015
3016 video_enc = st->codec;
3017
3018 if(video_codec_tag)
3019 video_enc->codec_tag= video_codec_tag;
3020
3021 if( (video_global_header&1)
3022 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3023 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3024 avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
3025 }
3026 if(video_global_header&2){
3027 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3028 avctx_opts->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3029 }
3030
3031 if (video_stream_copy) {
3032 st->stream_copy = 1;
3033 video_enc->codec_type = CODEC_TYPE_VIDEO;
3034 } else {
3035 char *p;
3036 int i;
3037 AVCodec *codec;
3038
3039 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3040 if (video_codec_id != CODEC_ID_NONE)
3041 codec_id = video_codec_id;
3042
3043 video_enc->codec_id = codec_id;
3044 codec = avcodec_find_encoder(codec_id);
3045
3046 for(i=0; i<opt_name_count; i++){
3047 AVOption *opt;
3048 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3049 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3050 av_set_double(video_enc, opt_names[i], d);
3051 }
3052
3053 video_enc->bit_rate = video_bit_rate;
3054 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
3055 video_enc->time_base.den = frame_rate;
3056 video_enc->time_base.num = frame_rate_base;
3057 if(codec && codec->supported_framerates){
3058 const AVRational *p= codec->supported_framerates;
3059 AVRational req= (AVRational){frame_rate, frame_rate_base};
3060 const AVRational *best=NULL;
3061 AVRational best_error= (AVRational){INT_MAX, 1};
3062 for(; p->den!=0; p++){
3063 AVRational error= av_sub_q(req, *p);
3064 if(error.num <0) error.num *= -1;
3065 if(av_cmp_q(error, best_error) < 0){
3066 best_error= error;
3067 best= p;
3068 }
3069 }
3070 video_enc->time_base.den= best->num;
3071 video_enc->time_base.num= best->den;
3072 }
3073
3074 video_enc->width = frame_width + frame_padright + frame_padleft;
3075 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3076 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3077 video_enc->pix_fmt = frame_pix_fmt;
3078
3079 if(codec && codec->pix_fmts){
3080 const enum PixelFormat *p= codec->pix_fmts;
3081 for(; *p!=-1; p++){
3082 if(*p == video_enc->pix_fmt)
3083 break;
3084 }
3085 if(*p == -1)
3086 video_enc->pix_fmt = codec->pix_fmts[0];
3087 }
3088
3089 if (!intra_only)
3090 video_enc->gop_size = gop_size;
3091 else
3092 video_enc->gop_size = 0;
3093 if (video_qscale || same_quality) {
3094 video_enc->flags |= CODEC_FLAG_QSCALE;
3095 video_enc->global_quality=
3096 st->quality = FF_QP2LAMBDA * video_qscale;
3097 }
3098
3099 if(intra_matrix)
3100 video_enc->intra_matrix = intra_matrix;
3101 if(inter_matrix)
3102 video_enc->inter_matrix = inter_matrix;
3103
3104 video_enc->pre_me = pre_me;
3105
3106 if (b_frames) {
3107 video_enc->max_b_frames = b_frames;
3108 video_enc->b_quant_factor = 2.0;
3109 }
3110 video_enc->qmin = video_qmin;
3111 video_enc->qmax = video_qmax;
3112 video_enc->lmin = video_lmin;
3113 video_enc->lmax = video_lmax;
3114 video_enc->rc_qsquish = video_qsquish;
3115 video_enc->mb_lmin = video_mb_lmin;
3116 video_enc->mb_lmax = video_mb_lmax;
3117 video_enc->max_qdiff = video_qdiff;
3118 video_enc->qblur = video_qblur;
3119 video_enc->qcompress = video_qcomp;
3120 video_enc->rc_eq = video_rc_eq;
3121 video_enc->workaround_bugs = workaround_bugs;
3122 video_enc->thread_count = thread_count;
3123 p= video_rc_override_string;
3124 for(i=0; p; i++){
3125 int start, end, q;
3126 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3127 if(e!=3){
3128 fprintf(stderr, "error parsing rc_override\n");
3129 exit(1);
3130 }
3131 video_enc->rc_override=
3132 av_realloc(video_enc->rc_override,
3133 sizeof(RcOverride)*(i+1));
3134 video_enc->rc_override[i].start_frame= start;
3135 video_enc->rc_override[i].end_frame = end;
3136 if(q>0){
3137 video_enc->rc_override[i].qscale= q;
3138 video_enc->rc_override[i].quality_factor= 1.0;
3139 }
3140 else{
3141 video_enc->rc_override[i].qscale= 0;
3142 video_enc->rc_override[i].quality_factor= -q/100.0;
3143 }
3144 p= strchr(p, '/');
3145 if(p) p++;
3146 }
3147 video_enc->rc_override_count=i;
3148
3149 video_enc->rc_max_rate = video_rc_max_rate;
3150 video_enc->rc_min_rate = video_rc_min_rate;
3151 video_enc->rc_buffer_size = video_rc_buffer_size;
3152 video_enc->rc_initial_buffer_occupancy = video_rc_buffer_size*3/4;
3153 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
3154 video_enc->rc_initial_cplx= video_rc_initial_cplx;
3155 video_enc->i_quant_factor = video_i_qfactor;
3156 video_enc->b_quant_factor = video_b_qfactor;
3157 video_enc->i_quant_offset = video_i_qoffset;
3158 video_enc->b_quant_offset = video_b_qoffset;
3159 video_enc->intra_quant_bias = video_intra_quant_bias;
3160 video_enc->inter_quant_bias = video_inter_quant_bias;
3161 video_enc->me_threshold= me_threshold;
3162 video_enc->mb_threshold= mb_threshold;
3163 video_enc->intra_dc_precision= intra_dc_precision - 8;
3164 video_enc->strict_std_compliance = strict;
3165 video_enc->error_rate = error_rate;
3166 video_enc->scenechange_threshold= sc_threshold;
3167 video_enc->me_range = me_range;
3168 video_enc->me_penalty_compensation= me_penalty_compensation;
3169 video_enc->frame_skip_threshold= frame_skip_threshold;
3170 video_enc->frame_skip_factor= frame_skip_factor;
3171 video_enc->frame_skip_exp= frame_skip_exp;
3172
3173 if(packet_size){
3174 video_enc->rtp_mode= 1;
3175 video_enc->rtp_payload_size= packet_size;
3176 }
3177
3178 if (do_psnr)
3179 video_enc->flags|= CODEC_FLAG_PSNR;
3180
3181 video_enc->me_method = me_method;
3182
3183 /* two pass mode */
3184 if (do_pass) {
3185 if (do_pass == 1) {
3186 video_enc->flags |= CODEC_FLAG_PASS1;
3187 } else {
3188 video_enc->flags |= CODEC_FLAG_PASS2;
3189 }
3190 }
3191 }
3192
3193 /* reset some key parameters */
3194 video_disable = 0;
3195 video_codec_id = CODEC_ID_NONE;
3196 video_stream_copy = 0;
3197 }
3198
3199 static void new_audio_stream(AVFormatContext *oc)
3200 {
3201 AVStream *st;
3202 AVCodecContext *audio_enc;
3203 int codec_id, i;
3204
3205 st = av_new_stream(oc, oc->nb_streams);
3206 if (!st) {
3207 fprintf(stderr, "Could not alloc stream\n");
3208 exit(1);
3209 }
3210
3211 bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
3212 audio_bitstream_filters= NULL;
3213
3214 #if defined(HAVE_THREADS)
3215 if(thread_count>1)
3216 avcodec_thread_init(st->codec, thread_count);
3217 #endif
3218
3219 audio_enc = st->codec;
3220 audio_enc->codec_type = CODEC_TYPE_AUDIO;
3221
3222 if(audio_codec_tag)
3223 audio_enc->codec_tag= audio_codec_tag;
3224
3225 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3226 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3227 avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
3228 }
3229 if (audio_stream_copy) {
3230 st->stream_copy = 1;
3231 audio_enc->channels = audio_channels;
3232 } else {
3233 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
3234
3235 for(i=0; i<opt_name_count; i++){
3236 AVOption *opt;
3237 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3238 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3239 av_set_double(audio_enc, opt_names[i], d);
3240 }
3241
3242 if (audio_codec_id != CODEC_ID_NONE)
3243 codec_id = audio_codec_id;
3244 audio_enc->codec_id = codec_id;
3245
3246 audio_enc->bit_rate = audio_bit_rate;
3247 if (audio_qscale > QSCALE_NONE) {
3248 audio_enc->flags |= CODEC_FLAG_QSCALE;
3249 audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
3250 }
3251 audio_enc->strict_std_compliance = strict;
3252 audio_enc->thread_count = thread_count;
3253 /* For audio codecs other than AC3 or DTS we limit */
3254 /* the number of coded channels to stereo */
3255 if (audio_channels > 2 && codec_id != CODEC_ID_AC3
3256 && codec_id != CODEC_ID_DTS) {
3257 audio_enc->channels = 2;
3258 } else
3259 audio_enc->channels = audio_channels;
3260 }
3261 audio_enc->sample_rate = audio_sample_rate;
3262 audio_enc->time_base= (AVRational){1, audio_sample_rate};
3263 if (audio_language) {
3264 pstrcpy(st->language, sizeof(st->language), audio_language);
3265 av_free(audio_language);
3266 audio_language = NULL;
3267 }
3268
3269 /* reset some key parameters */
3270 audio_disable = 0;
3271 audio_codec_id = CODEC_ID_NONE;
3272 audio_stream_copy = 0;
3273 }
3274
3275 static void opt_new_subtitle_s