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video4linux2 input support
[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 "cmdutils.h"
44
45 #undef NDEBUG
46 #include <assert.h>
47
48 #if !defined(INFINITY) && defined(HUGE_VAL)
49 #define INFINITY HUGE_VAL
50 #endif
51
52 /* select an input stream for an output stream */
53 typedef struct AVStreamMap {
54 int file_index;
55 int stream_index;
56 int sync_file_index;
57 int sync_stream_index;
58 } AVStreamMap;
59
60 /** select an input file for an output file */
61 typedef struct AVMetaDataMap {
62 int out_file;
63 int in_file;
64 } AVMetaDataMap;
65
66 extern const OptionDef options[];
67
68 static void show_help(void);
69 static void show_license(void);
70 static int opt_default(const char *opt, const char *arg);
71
72 #define MAX_FILES 20
73
74 static AVFormatContext *input_files[MAX_FILES];
75 static int64_t input_files_ts_offset[MAX_FILES];
76 static int nb_input_files = 0;
77
78 static AVFormatContext *output_files[MAX_FILES];
79 static int nb_output_files = 0;
80
81 static AVStreamMap stream_maps[MAX_FILES];
82 static int nb_stream_maps;
83
84 static AVMetaDataMap meta_data_maps[MAX_FILES];
85 static int nb_meta_data_maps;
86
87 static AVInputFormat *file_iformat;
88 static AVOutputFormat *file_oformat;
89 static AVImageFormat *image_format;
90 static int frame_width = 0;
91 static int frame_height = 0;
92 static float frame_aspect_ratio = 0;
93 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
94 static int frame_padtop = 0;
95 static int frame_padbottom = 0;
96 static int frame_padleft = 0;
97 static int frame_padright = 0;
98 static int padcolor[3] = {16,128,128}; /* default to black */
99 static int frame_topBand = 0;
100 static int frame_bottomBand = 0;
101 static int frame_leftBand = 0;
102 static int frame_rightBand = 0;
103 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
104 static int frame_rate = 25;
105 static int frame_rate_base = 1;
106 static int video_bit_rate = 200*1000;
107 static int video_bit_rate_tolerance = 4000*1000;
108 static float video_qscale = 0;
109 static int video_qmin = 2;
110 static int video_qmax = 31;
111 static int video_lmin = 2*FF_QP2LAMBDA;
112 static int video_lmax = 31*FF_QP2LAMBDA;
113 static int video_mb_lmin = 2*FF_QP2LAMBDA;
114 static int video_mb_lmax = 31*FF_QP2LAMBDA;
115 static int video_qdiff = 3;
116 static float video_qblur = 0.5;
117 static float video_qsquish = 0.0;
118 static float video_qcomp = 0.5;
119 static uint16_t *intra_matrix = NULL;
120 static uint16_t *inter_matrix = NULL;
121 #if 0 //experimental, (can be removed)
122 static float video_rc_qsquish=1.0;
123 static float video_rc_qmod_amp=0;
124 static int video_rc_qmod_freq=0;
125 #endif
126 static char *video_rc_override_string=NULL;
127 static char *video_rc_eq="tex^qComp";
128 static int video_rc_buffer_size=0;
129 static float video_rc_buffer_aggressivity=1.0;
130 static int video_rc_max_rate=0;
131 static int video_rc_min_rate=0;
132 static float video_rc_initial_cplx=0;
133 static float video_b_qfactor = 1.25;
134 static float video_b_qoffset = 1.25;
135 static float video_i_qfactor = -0.8;
136 static float video_i_qoffset = 0.0;
137 static int video_intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
138 static int video_inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
139 static int me_method = ME_EPZS;
140 static int video_disable = 0;
141 static int video_discard = 0;
142 static int video_codec_id = CODEC_ID_NONE;
143 static int video_codec_tag = 0;
144 static int same_quality = 0;
145 static int b_frames = 0;
146 static int pre_me = 0;
147 static int do_deinterlace = 0;
148 static int workaround_bugs = FF_BUG_AUTODETECT;
149 static int packet_size = 0;
150 static int error_rate = 0;
151 static int strict = 0;
152 static int top_field_first = -1;
153 static int sc_threshold = 0;
154 static int me_threshold = 0;
155 static int mb_threshold = 0;
156 static int intra_dc_precision = 8;
157 static int me_penalty_compensation= 256;
158 static int frame_skip_threshold= 0;
159 static int frame_skip_factor= 0;
160 static int frame_skip_exp= 0;
161 extern int loop_input; /* currently a hack */
162 static int loop_output = AVFMT_NOOUTPUTLOOP;
163 static int genpts = 0;
164 static int qp_hist = 0;
165
166 static int gop_size = 12;
167 static int intra_only = 0;
168 static int audio_sample_rate = 44100;
169 static int audio_bit_rate = 64000;
170 #define QSCALE_NONE -99999
171 static float audio_qscale = QSCALE_NONE;
172 static int audio_disable = 0;
173 static int audio_channels = 1;
174 static int audio_codec_id = CODEC_ID_NONE;
175 static int audio_codec_tag = 0;
176 static char *audio_language = NULL;
177
178 static int subtitle_codec_id = CODEC_ID_NONE;
179 static char *subtitle_language = NULL;
180
181 static int mux_rate= 0;
182 static int mux_packet_size= 0;
183 static float mux_preload= 0.5;
184 static float mux_max_delay= 0.7;
185
186 static int64_t recording_time = 0;
187 static int64_t start_time = 0;
188 static int64_t rec_timestamp = 0;
189 static int64_t input_ts_offset = 0;
190 static int file_overwrite = 0;
191 static char *str_title = NULL;
192 static char *str_author = NULL;
193 static char *str_copyright = NULL;
194 static char *str_comment = NULL;
195 static int do_benchmark = 0;
196 static int do_hex_dump = 0;
197 static int do_pkt_dump = 0;
198 static int do_psnr = 0;
199 static int do_vstats = 0;
200 static int do_pass = 0;
201 static char *pass_logfilename = NULL;
202 static int audio_stream_copy = 0;
203 static int video_stream_copy = 0;
204 static int subtitle_stream_copy = 0;
205 static int video_sync_method= 1;
206 static int audio_sync_method= 0;
207 static int copy_ts= 0;
208 static int opt_shortest = 0; //
209 static int video_global_header = 0;
210
211 static int rate_emu = 0;
212
213 #ifdef CONFIG_BKTR
214 static char *video_grab_format = "bktr";
215 #else
216 #ifdef CONFIG_VIDEO4LINUX2
217 static char *video_grab_format = "video4linux2";
218 #else
219 static char *video_grab_format = "video4linux";
220 #endif
221 #endif
222 static char *video_device = NULL;
223 static char *grab_device = NULL;
224 static int video_channel = 0;
225 static char *video_standard = "ntsc";
226
227 static char *audio_grab_format = "audio_device";
228 static char *audio_device = NULL;
229 static int audio_volume = 256;
230
231 static int using_stdin = 0;
232 static int using_vhook = 0;
233 static int verbose = 1;
234 static int thread_count= 1;
235 static int q_pressed = 0;
236 static int me_range = 0;
237 static int64_t video_size = 0;
238 static int64_t audio_size = 0;
239 static int64_t extra_size = 0;
240 static int nb_frames_dup = 0;
241 static int nb_frames_drop = 0;
242 static int input_sync;
243 static int limit_filesize = 0; //
244
245 static int pgmyuv_compatibility_hack=0;
246
247 const char **opt_names=NULL;
248 int opt_name_count=0;
249 AVCodecContext *avctx_opts;
250
251
252 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
253
254 struct AVInputStream;
255
256 typedef struct AVOutputStream {
257 int file_index; /* file index */
258 int index; /* stream index in the output file */
259 int source_index; /* AVInputStream index */
260 AVStream *st; /* stream in the output file */
261 int encoding_needed; /* true if encoding needed for this stream */
262 int frame_number;
263 /* input pts and corresponding output pts
264 for A/V sync */
265 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
266 struct AVInputStream *sync_ist; /* input stream to sync against */
267 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
268 /* video only */
269 int video_resample; /* video_resample and video_crop are mutually exclusive */
270 AVFrame pict_tmp; /* temporary image for resampling */
271 ImgReSampleContext *img_resample_ctx; /* for image resampling */
272
273 int video_crop; /* video_resample and video_crop are mutually exclusive */
274 int topBand; /* cropping area sizes */
275 int leftBand;
276
277 int video_pad; /* video_resample and video_pad are mutually exclusive */
278 int padtop; /* padding area sizes */
279 int padbottom;
280 int padleft;
281 int padright;
282
283 /* audio only */
284 int audio_resample;
285 ReSampleContext *resample; /* for audio resampling */
286 FifoBuffer fifo; /* for compression: one audio fifo per codec */
287 FILE *logfile;
288 } AVOutputStream;
289
290 typedef struct AVInputStream {
291 int file_index;
292 int index;
293 AVStream *st;
294 int discard; /* true if stream data should be discarded */
295 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
296 int64_t sample_index; /* current sample */
297
298 int64_t start; /* time when read started */
299 unsigned long frame; /* current frame */
300 int64_t next_pts; /* synthetic pts for cases where pkt.pts
301 is not defined */
302 int64_t pts; /* current pts */
303 int is_start; /* is 1 at the start and after a discontinuity */
304 } AVInputStream;
305
306 typedef struct AVInputFile {
307 int eof_reached; /* true if eof reached */
308 int ist_index; /* index of first stream in ist_table */
309 int buffer_size; /* current total buffer size */
310 int buffer_size_max; /* buffer size at which we consider we can stop
311 buffering */
312 int nb_streams; /* nb streams we are aware of */
313 } AVInputFile;
314
315 #ifndef CONFIG_WIN32
316
317 /* init terminal so that we can grab keys */
318 static struct termios oldtty;
319
320 static void term_exit(void)
321 {
322 tcsetattr (0, TCSANOW, &oldtty);
323 }
324
325 static volatile sig_atomic_t received_sigterm = 0;
326
327 static void
328 sigterm_handler(int sig)
329 {
330 received_sigterm = sig;
331 term_exit();
332 }
333
334 static void term_init(void)
335 {
336 struct termios tty;
337
338 tcgetattr (0, &tty);
339 oldtty = tty;
340
341 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
342 |INLCR|IGNCR|ICRNL|IXON);
343 tty.c_oflag |= OPOST;
344 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
345 tty.c_cflag &= ~(CSIZE|PARENB);
346 tty.c_cflag |= CS8;
347 tty.c_cc[VMIN] = 1;
348 tty.c_cc[VTIME] = 0;
349
350 tcsetattr (0, TCSANOW, &tty);
351
352 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
353 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
354 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
355 /*
356 register a function to be called at normal program termination
357 */
358 atexit(term_exit);
359 #ifdef CONFIG_BEOS_NETSERVER
360 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
361 #endif
362 }
363
364 /* read a key without blocking */
365 static int read_key(void)
366 {
367 int n = 1;
368 unsigned char ch;
369 #ifndef CONFIG_BEOS_NETSERVER
370 struct timeval tv;
371 fd_set rfds;
372
373 FD_ZERO(&rfds);
374 FD_SET(0, &rfds);
375 tv.tv_sec = 0;
376 tv.tv_usec = 0;
377 n = select(1, &rfds, NULL, NULL, &tv);
378 #endif
379 if (n > 0) {
380 n = read(0, &ch, 1);
381 if (n == 1)
382 return ch;
383
384 return n;
385 }
386 return -1;
387 }
388
389 static int decode_interrupt_cb(void)
390 {
391 return q_pressed || (q_pressed = read_key() == 'q');
392 }
393
394 #else
395
396 static volatile int received_sigterm = 0;
397
398 /* no interactive support */
399 static void term_exit(void)
400 {
401 }
402
403 static void term_init(void)
404 {
405 }
406
407 static int read_key(void)
408 {
409 return 0;
410 }
411
412 #endif
413
414 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
415 {
416 int i, err;
417 AVFormatContext *ic;
418
419 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
420 if (err < 0)
421 return err;
422 /* copy stream format */
423 s->nb_streams = ic->nb_streams;
424 for(i=0;i<ic->nb_streams;i++) {
425 AVStream *st;
426
427 // FIXME: a more elegant solution is needed
428 st = av_mallocz(sizeof(AVStream));
429 memcpy(st, ic->streams[i], sizeof(AVStream));
430 st->codec = avcodec_alloc_context();
431 memcpy(st->codec, ic->streams[i]->codec, sizeof(AVCodecContext));
432 s->streams[i] = st;
433 }
434
435 av_close_input_file(ic);
436 return 0;
437 }
438
439 static double
440 get_sync_ipts(const AVOutputStream *ost)
441 {
442 const AVInputStream *ist = ost->sync_ist;
443 return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
444 }
445
446 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
447
448 static void do_audio_out(AVFormatContext *s,
449 AVOutputStream *ost,
450 AVInputStream *ist,
451 unsigned char *buf, int size)
452 {
453 uint8_t *buftmp;
454 static uint8_t *audio_buf = NULL;
455 static uint8_t *audio_out = NULL;
456 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
457
458 int size_out, frame_bytes, ret;
459 AVCodecContext *enc= ost->st->codec;
460
461 /* SC: dynamic allocation of buffers */
462 if (!audio_buf)
463 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
464 if (!audio_out)
465 audio_out = av_malloc(audio_out_size);
466 if (!audio_buf || !audio_out)
467 return; /* Should signal an error ! */
468
469 if(audio_sync_method){
470 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
471 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2);
472 double idelta= delta*ist->st->codec->sample_rate / enc->sample_rate;
473 int byte_delta= ((int)idelta)*2*ist->st->codec->channels;
474
475 //FIXME resample delay
476 if(fabs(delta) > 50){
477 if(ist->is_start){
478 if(byte_delta < 0){
479 byte_delta= FFMAX(byte_delta, -size);
480 size += byte_delta;
481 buf -= byte_delta;
482 if(verbose > 2)
483 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
484 if(!size)
485 return;
486 ist->is_start=0;
487 }else{
488 static uint8_t *input_tmp= NULL;
489 input_tmp= av_realloc(input_tmp, byte_delta + size);
490
491 if(byte_delta + size <= MAX_AUDIO_PACKET_SIZE)
492 ist->is_start=0;
493 else
494 byte_delta= MAX_AUDIO_PACKET_SIZE - size;
495
496 memset(input_tmp, 0, byte_delta);
497 memcpy(input_tmp + byte_delta, buf, size);
498 buf= input_tmp;
499 size += byte_delta;
500 if(verbose > 2)
501 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
502 }
503 }else if(audio_sync_method>1){
504 int comp= clip(delta, -audio_sync_method, audio_sync_method);
505 assert(ost->audio_resample);
506 if(verbose > 2)
507 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
508 // 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));
509 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
510 }
511 }
512 }else
513 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
514 - fifo_size(&ost->fifo, ost->fifo.rptr)/(ost->st->codec->channels * 2); //FIXME wrong
515
516 if (ost->audio_resample) {
517 buftmp = audio_buf;
518 size_out = audio_resample(ost->resample,
519 (short *)buftmp, (short *)buf,
520 size / (ist->st->codec->channels * 2));
521 size_out = size_out * enc->channels * 2;
522 } else {
523 buftmp = buf;
524 size_out = size;
525 }
526
527 /* now encode as many frames as possible */
528 if (enc->frame_size > 1) {
529 /* output resampled raw samples */
530 fifo_write(&ost->fifo, buftmp, size_out,
531 &ost->fifo.wptr);
532
533 frame_bytes = enc->frame_size * 2 * enc->channels;
534
535 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
536 &ost->fifo.rptr) == 0) {
537 AVPacket pkt;
538 av_init_packet(&pkt);
539
540 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
541 (short *)audio_buf);
542 audio_size += ret;
543 pkt.stream_index= ost->index;
544 pkt.data= audio_out;
545 pkt.size= ret;
546 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
547 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
548 pkt.flags |= PKT_FLAG_KEY;
549 av_interleaved_write_frame(s, &pkt);
550
551 ost->sync_opts += enc->frame_size;
552 }
553 } else {
554 AVPacket pkt;
555 av_init_packet(&pkt);
556
557 ost->sync_opts += size_out / (2 * enc->channels);
558
559 /* output a pcm frame */
560 /* XXX: change encoding codec API to avoid this ? */
561 switch(enc->codec->id) {
562 case CODEC_ID_PCM_S32LE:
563 case CODEC_ID_PCM_S32BE:
564 case CODEC_ID_PCM_U32LE:
565 case CODEC_ID_PCM_U32BE:
566 size_out = size_out << 1;
567 break;
568 case CODEC_ID_PCM_S24LE:
569 case CODEC_ID_PCM_S24BE:
570 case CODEC_ID_PCM_U24LE:
571 case CODEC_ID_PCM_U24BE:
572 case CODEC_ID_PCM_S24DAUD:
573 size_out = size_out / 2 * 3;
574 break;
575 case CODEC_ID_PCM_S16LE:
576 case CODEC_ID_PCM_S16BE:
577 case CODEC_ID_PCM_U16LE:
578 case CODEC_ID_PCM_U16BE:
579 break;
580 default:
581 size_out = size_out >> 1;
582 break;
583 }
584 ret = avcodec_encode_audio(enc, audio_out, size_out,
585 (short *)buftmp);
586 audio_size += ret;
587 pkt.stream_index= ost->index;
588 pkt.data= audio_out;
589 pkt.size= ret;
590 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
591 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
592 pkt.flags |= PKT_FLAG_KEY;
593 av_interleaved_write_frame(s, &pkt);
594 }
595 }
596
597 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
598 {
599 AVCodecContext *dec;
600 AVPicture *picture2;
601 AVPicture picture_tmp;
602 uint8_t *buf = 0;
603
604 dec = ist->st->codec;
605
606 /* deinterlace : must be done before any resize */
607 if (do_deinterlace || using_vhook) {
608 int size;
609
610 /* create temporary picture */
611 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
612 buf = av_malloc(size);
613 if (!buf)
614 return;
615
616 picture2 = &picture_tmp;
617 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
618
619 if (do_deinterlace){
620 if(avpicture_deinterlace(picture2, picture,
621 dec->pix_fmt, dec->width, dec->height) < 0) {
622 /* if error, do not deinterlace */
623 av_free(buf);
624 buf = NULL;
625 picture2 = picture;
626 }
627 } else {
628 if (img_convert(picture2, dec->pix_fmt, picture,
629 dec->pix_fmt, dec->width, dec->height) < 0) {
630 /* if error, do not copy */
631 av_free(buf);
632 buf = NULL;
633 picture2 = picture;
634 }
635 }
636 } else {
637 picture2 = picture;
638 }
639
640 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
641
642 if (picture != picture2)
643 *picture = *picture2;
644 *bufp = buf;
645 }
646
647 /* we begin to correct av delay at this threshold */
648 #define AV_DELAY_MAX 0.100
649
650
651 /* Expects img to be yuv420 */
652 static void fill_pad_region(AVPicture* img, int height, int width,
653 int padtop, int padbottom, int padleft, int padright, int *color) {
654
655 int i, y, shift;
656 uint8_t *optr;
657
658 for (i = 0; i < 3; i++) {
659 shift = (i == 0) ? 0 : 1;
660
661 if (padtop || padleft) {
662 memset(img->data[i], color[i], (((img->linesize[i] * padtop) +
663 padleft) >> shift));
664 }
665
666 if (padleft || padright) {
667 optr = img->data[i] + (img->linesize[i] * (padtop >> shift)) +
668 (img->linesize[i] - (padright >> shift));
669
670 for (y = 0; y < ((height - (padtop + padbottom) - 1) >> shift); y++) {
671 memset(optr, color[i], (padleft + padright) >> shift);
672 optr += img->linesize[i];
673 }
674 }
675
676 if (padbottom || padright) {
677 optr = img->data[i] + (((img->linesize[i] * (height - padbottom)) - padright) >> shift);
678 memset(optr, color[i], (((img->linesize[i] * padbottom) + padright) >> shift));
679 }
680 }
681 }
682
683 static void do_subtitle_out(AVFormatContext *s,
684 AVOutputStream *ost,
685 AVInputStream *ist,
686 AVSubtitle *sub,
687 int64_t pts)
688 {
689 static uint8_t *subtitle_out = NULL;
690 int subtitle_out_max_size = 65536;
691 int subtitle_out_size, nb, i;
692 AVCodecContext *enc;
693 AVPacket pkt;
694
695 if (pts == AV_NOPTS_VALUE) {
696 fprintf(stderr, "Subtitle packets must have a pts\n");
697 return;
698 }
699
700 enc = ost->st->codec;
701
702 if (!subtitle_out) {
703 subtitle_out = av_malloc(subtitle_out_max_size);
704 }
705
706 /* Note: DVB subtitle need one packet to draw them and one other
707 packet to clear them */
708 /* XXX: signal it in the codec context ? */
709 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
710 nb = 2;
711 else
712 nb = 1;
713
714 for(i = 0; i < nb; i++) {
715 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
716 subtitle_out_max_size, sub);
717
718 av_init_packet(&pkt);
719 pkt.stream_index = ost->index;
720 pkt.data = subtitle_out;
721 pkt.size = subtitle_out_size;
722 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);
723 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
724 /* XXX: the pts correction is handled here. Maybe handling
725 it in the codec would be better */
726 if (i == 0)
727 pkt.pts += 90 * sub->start_display_time;
728 else
729 pkt.pts += 90 * sub->end_display_time;
730 }
731 av_interleaved_write_frame(s, &pkt);
732 }
733 }
734
735 static int bit_buffer_size= 1024*256;
736 static uint8_t *bit_buffer= NULL;
737
738 static void do_video_out(AVFormatContext *s,
739 AVOutputStream *ost,
740 AVInputStream *ist,
741 AVFrame *in_picture,
742 int *frame_size)
743 {
744 int nb_frames, i, ret;
745 AVFrame *final_picture, *formatted_picture;
746 AVFrame picture_format_temp, picture_crop_temp;
747 uint8_t *buf = NULL, *buf1 = NULL;
748 AVCodecContext *enc, *dec;
749 enum PixelFormat target_pixfmt;
750
751 avcodec_get_frame_defaults(&picture_format_temp);
752 avcodec_get_frame_defaults(&picture_crop_temp);
753
754 enc = ost->st->codec;
755 dec = ist->st->codec;
756
757 /* by default, we output a single frame */
758 nb_frames = 1;
759
760 *frame_size = 0;
761
762 if(video_sync_method){
763 double vdelta;
764 vdelta = get_sync_ipts(ost) / av_q2d(enc->time_base) - ost->sync_opts;
765 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
766 if (vdelta < -1.1)
767 nb_frames = 0;
768 else if (vdelta > 1.1)
769 nb_frames = lrintf(vdelta);
770 //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);
771 if (nb_frames == 0){
772 ++nb_frames_drop;
773 if (verbose>2)
774 fprintf(stderr, "*** drop!\n");
775 }else if (nb_frames > 1) {
776 nb_frames_dup += nb_frames;
777 if (verbose>2)
778 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
779 }
780 }else
781 ost->sync_opts= lrintf(get_sync_ipts(ost) / av_q2d(enc->time_base));
782
783 nb_frames= FFMIN(nb_frames, max_frames[CODEC_TYPE_VIDEO] - ost->frame_number);
784 if (nb_frames <= 0)
785 return;
786
787 /* convert pixel format if needed */
788 target_pixfmt = ost->video_resample || ost->video_pad
789 ? PIX_FMT_YUV420P : enc->pix_fmt;
790 if (dec->pix_fmt != target_pixfmt) {
791 int size;
792
793 /* create temporary picture */
794 size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
795 buf = av_malloc(size);
796 if (!buf)
797 return;
798 formatted_picture = &picture_format_temp;
799 avpicture_fill((AVPicture*)formatted_picture, buf, target_pixfmt, dec->width, dec->height);
800
801 if (img_convert((AVPicture*)formatted_picture, target_pixfmt,
802 (AVPicture *)in_picture, dec->pix_fmt,
803 dec->width, dec->height) < 0) {
804
805 if (verbose >= 0)
806 fprintf(stderr, "pixel format conversion not handled\n");
807
808 goto the_end;
809 }
810 } else {
811 formatted_picture = in_picture;
812 }
813
814 /* XXX: resampling could be done before raw format conversion in
815 some cases to go faster */
816 /* XXX: only works for YUV420P */
817 if (ost->video_resample) {
818 final_picture = &ost->pict_tmp;
819 img_resample(ost->img_resample_ctx, (AVPicture*)final_picture, (AVPicture*)formatted_picture);
820
821 if (ost->padtop || ost->padbottom || ost->padleft || ost->padright) {
822 fill_pad_region((AVPicture*)final_picture, enc->height, enc->width,
823 ost->padtop, ost->padbottom, ost->padleft, ost->padright,
824 padcolor);
825 }
826
827 if (enc->pix_fmt != PIX_FMT_YUV420P) {
828 int size;
829
830 av_free(buf);
831 /* create temporary picture */
832 size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
833 buf = av_malloc(size);
834 if (!buf)
835 return;
836 final_picture = &picture_format_temp;
837 avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
838
839 if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
840 (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
841 enc->width, enc->height) < 0) {
842
843 if (verbose >= 0)
844 fprintf(stderr, "pixel format conversion not handled\n");
845
846 goto the_end;
847 }
848 }
849 } else if (ost->video_crop) {
850 picture_crop_temp.data[0] = formatted_picture->data[0] +
851 (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;
852
853 picture_crop_temp.data[1] = formatted_picture->data[1] +
854 ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
855 (ost->leftBand >> 1);
856
857 picture_crop_temp.data[2] = formatted_picture->data[2] +
858 ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
859 (ost->leftBand >> 1);
860
861 picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
862 picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
863 picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
864 final_picture = &picture_crop_temp;
865 } else if (ost->video_pad) {
866 final_picture = &ost->pict_tmp;
867
868 for (i = 0; i < 3; i++) {
869 uint8_t *optr, *iptr;
870 int shift = (i == 0) ? 0 : 1;
871 int y, yheight;
872
873 /* set offset to start writing image into */
874 optr = final_picture->data[i] + (((final_picture->linesize[i] *
875 ost->padtop) + ost->padleft) >> shift);
876 iptr = formatted_picture->data[i];
877
878 yheight = (enc->height - ost->padtop - ost->padbottom) >> shift;
879 for (y = 0; y < yheight; y++) {
880 /* copy unpadded image row into padded image row */
881 memcpy(optr, iptr, formatted_picture->linesize[i]);
882 optr += final_picture->linesize[i];
883 iptr += formatted_picture->linesize[i];
884 }
885 }
886
887 fill_pad_region((AVPicture*)final_picture, enc->height, enc->width,
888 ost->padtop, ost->padbottom, ost->padleft, ost->padright,
889 padcolor);
890
891 if (enc->pix_fmt != PIX_FMT_YUV420P) {
892 int size;
893
894 av_free(buf);
895 /* create temporary picture */
896 size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
897 buf = av_malloc(size);
898 if (!buf)
899 return;
900 final_picture = &picture_format_temp;
901 avpicture_fill((AVPicture*)final_picture, buf, enc->pix_fmt, enc->width, enc->height);
902
903 if (img_convert((AVPicture*)final_picture, enc->pix_fmt,
904 (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
905 enc->width, enc->height) < 0) {
906
907 if (verbose >= 0)
908 fprintf(stderr, "pixel format conversion not handled\n");
909
910 goto the_end;
911 }
912 }
913 } else {
914 final_picture = formatted_picture;
915 }
916 /* duplicates frame if needed */
917 for(i=0;i<nb_frames;i++) {
918 AVPacket pkt;
919 av_init_packet(&pkt);
920 pkt.stream_index= ost->index;
921
922 if (s->oformat->flags & AVFMT_RAWPICTURE) {
923 /* raw pictures are written as AVPicture structure to
924 avoid any copies. We support temorarily the older
925 method. */
926 AVFrame* old_frame = enc->coded_frame;
927 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
928 pkt.data= (uint8_t *)final_picture;
929 pkt.size= sizeof(AVPicture);
930 if(dec->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
931 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
932 if(dec->coded_frame && dec->coded_frame->key_frame)
933 pkt.flags |= PKT_FLAG_KEY;
934
935 av_interleaved_write_frame(s, &pkt);
936 enc->coded_frame = old_frame;
937 } else {
938 AVFrame big_picture;
939
940 big_picture= *final_picture;
941 /* better than nothing: use input picture interlaced
942 settings */
943 big_picture.interlaced_frame = in_picture->interlaced_frame;
944 if(avctx_opts->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)){
945 if(top_field_first == -1)
946 big_picture.top_field_first = in_picture->top_field_first;
947 else
948 big_picture.top_field_first = top_field_first;
949 }
950
951 /* handles sameq here. This is not correct because it may
952 not be a global option */
953 if (same_quality) {
954 big_picture.quality = ist->st->quality;
955 }else
956 big_picture.quality = ost->st->quality;
957 if(!me_threshold)
958 big_picture.pict_type = 0;
959 // big_picture.pts = AV_NOPTS_VALUE;
960 big_picture.pts= ost->sync_opts;
961 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
962 //av_log(NULL, AV_LOG_DEBUG, "%lld -> encoder\n", ost->sync_opts);
963 ret = avcodec_encode_video(enc,
964 bit_buffer, bit_buffer_size,
965 &big_picture);
966 //enc->frame_number = enc->real_pict_num;
967 if(ret>0){
968 pkt.data= bit_buffer;
969 pkt.size= ret;
970 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
971 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
972 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %lld/%lld\n",
973 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
974 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
975
976 if(enc->coded_frame && enc->coded_frame->key_frame)
977 pkt.flags |= PKT_FLAG_KEY;
978 av_interleaved_write_frame(s, &pkt);
979 *frame_size = ret;
980 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
981 // enc->frame_number-1, enc->real_pict_num, ret,
982 // enc->pict_type);
983 /* if two pass, output log */
984 if (ost->logfile && enc->stats_out) {
985 fprintf(ost->logfile, "%s", enc->stats_out);
986 }
987 }
988 }
989 ost->sync_opts++;
990 ost->frame_number++;
991 }
992 the_end:
993 av_free(buf);
994 av_free(buf1);
995 }
996
997 static double psnr(double d){
998 if(d==0) return INFINITY;
999 return -10.0*log(d)/log(10.0);
1000 }
1001
1002 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
1003 int frame_size)
1004 {
1005 static FILE *fvstats=NULL;
1006 char filename[40];
1007 time_t today2;
1008 struct tm *today;
1009 AVCodecContext *enc;
1010 int frame_number;
1011 int64_t ti;
1012 double ti1, bitrate, avg_bitrate;
1013
1014 if (!fvstats) {
1015 today2 = time(NULL);
1016 today = localtime(&today2);
1017 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour,
1018 today->tm_min,
1019 today->tm_sec);
1020 fvstats = fopen(filename,"w");
1021 if (!fvstats) {
1022 perror("fopen");
1023 exit(1);
1024 }
1025 }
1026
1027 ti = MAXINT64;
1028 enc = ost->st->codec;
1029 if (enc->codec_type == CODEC_TYPE_VIDEO) {
1030 frame_number = ost->frame_number;
1031 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1032 if (enc->flags&CODEC_FLAG_PSNR)
1033 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1034
1035 fprintf(fvstats,"f_size= %6d ", frame_size);
1036 /* compute pts value */
1037 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1038 if (ti1 < 0.01)
1039 ti1 = 0.01;
1040
1041 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1042 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1043 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1044 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1045 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
1046 }
1047 }
1048
1049 static void print_report(AVFormatContext **output_files,
1050 AVOutputStream **ost_table, int nb_ostreams,
1051 int is_last_report)
1052 {
1053 char buf[1024];
1054 AVOutputStream *ost;
1055 AVFormatContext *oc, *os;
1056 int64_t total_size;
1057 AVCodecContext *enc;
1058 int frame_number, vid, i;
1059 double bitrate, ti1, pts;
1060 static int64_t last_time = -1;
1061 static int qp_histogram[52];
1062
1063 if (!is_last_report) {
1064 int64_t cur_time;
1065 /* display the report every 0.5 seconds */
1066 cur_time = av_gettime();
1067 if (last_time == -1) {
1068 last_time = cur_time;
1069 return;
1070 }
1071 if ((cur_time - last_time) < 500000)
1072 return;
1073 last_time = cur_time;
1074 }
1075
1076
1077 oc = output_files[0];
1078
1079 total_size = url_ftell(&oc->pb);
1080
1081 buf[0] = '\0';
1082 ti1 = 1e10;
1083 vid = 0;
1084 for(i=0;i<nb_ostreams;i++) {
1085 ost = ost_table[i];
1086 os = output_files[ost->file_index];
1087 enc = ost->st->codec;
1088 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1089 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ",
1090 enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1091 }
1092 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1093 frame_number = ost->frame_number;
1094 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d q=%3.1f ",
1095 frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : -1);
1096 if(is_last_report)
1097 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1098 if(qp_hist && enc->coded_frame){
1099 int j;
1100 int qp= lrintf(enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1101 if(qp>=0 && qp<sizeof(qp_histogram)/sizeof(int))
1102 qp_histogram[qp]++;
1103 for(j=0; j<32; j++)
1104 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1105 }
1106 if (enc->flags&CODEC_FLAG_PSNR){
1107 int j;
1108 double error, error_sum=0;
1109 double scale, scale_sum=0;
1110 char type[3]= {'Y','U','V'};
1111 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1112 for(j=0; j<3; j++){
1113 if(is_last_report){
1114 error= enc->error[j];
1115 scale= enc->width*enc->height*255.0*255.0*frame_number;
1116 }else{
1117 error= enc->coded_frame->error[j];
1118 scale= enc->width*enc->height*255.0*255.0;
1119 }
1120 if(j) scale/=4;
1121 error_sum += error;
1122 scale_sum += scale;
1123 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1124 }
1125 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1126 }
1127 vid = 1;
1128 }
1129 /* compute min output value */
1130 pts = (double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den;
1131 if ((pts < ti1) && (pts > 0))
1132 ti1 = pts;
1133 }
1134 if (ti1 < 0.01)
1135 ti1 = 0.01;
1136
1137 if (verbose || is_last_report) {
1138 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1139
1140 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1141 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1142 (double)total_size / 1024, ti1, bitrate);
1143
1144 if (verbose > 1)
1145 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1146 nb_frames_dup, nb_frames_drop);
1147
1148 if (verbose >= 0)
1149 fprintf(stderr, "%s \r", buf);
1150
1151 fflush(stderr);
1152 }
1153
1154 if (is_last_report && verbose >= 0){
1155 int64_t raw= audio_size + video_size + extra_size;
1156 fprintf(stderr, "\n");
1157 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1158 video_size/1024.0,
1159 audio_size/1024.0,
1160 extra_size/1024.0,
1161 100.0*(total_size - raw)/raw
1162 );
1163 }
1164 }
1165
1166 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1167 static int output_packet(AVInputStream *ist, int ist_index,
1168 AVOutputStream **ost_table, int nb_ostreams,
1169 const AVPacket *pkt)
1170 {
1171 AVFormatContext *os;
1172 AVOutputStream *ost;
1173 uint8_t *ptr;
1174 int len, ret, i;
1175 uint8_t *data_buf;
1176 int data_size, got_picture;
1177 AVFrame picture;
1178 void *buffer_to_free;
1179 static unsigned int samples_size= 0;
1180 static short *samples= NULL;
1181 AVSubtitle subtitle, *subtitle_to_free;
1182 int got_subtitle;
1183
1184 if(!pkt){
1185 ist->pts= ist->next_pts; // needed for last packet if vsync=0
1186 } else if (pkt->dts != AV_NOPTS_VALUE) { //FIXME seems redundant, as libavformat does this too
1187 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1188 } else {
1189 // assert(ist->pts == ist->next_pts);
1190 }
1191
1192 if (pkt == NULL) {
1193 /* EOF handling */
1194 ptr = NULL;
1195 len = 0;
1196 goto handle_eof;
1197 }
1198
1199 len = pkt->size;
1200 ptr = pkt->data;
1201 while (len > 0) {
1202 handle_eof:
1203 /* decode the packet if needed */
1204 data_buf = NULL; /* fail safe */
1205 data_size = 0;
1206 subtitle_to_free = NULL;
1207 if (ist->decoding_needed) {
1208 switch(ist->st->codec->codec_type) {
1209 case CODEC_TYPE_AUDIO:{
1210 if(pkt)
1211 samples= av_fast_realloc(samples, &samples_size, FFMAX(pkt->size, AVCODEC_MAX_AUDIO_FRAME_SIZE));
1212 /* XXX: could avoid copy if PCM 16 bits with same
1213 endianness as CPU */
1214 ret = avcodec_decode_audio(ist->st->codec, samples, &data_size,
1215 ptr, len);
1216 if (ret < 0)
1217 goto fail_decode;
1218 ptr += ret;
1219 len -= ret;
1220 /* Some bug in mpeg audio decoder gives */
1221 /* data_size < 0, it seems they are overflows */
1222 if (data_size <= 0) {
1223 /* no audio frame */
1224 continue;
1225 }
1226 data_buf = (uint8_t *)samples;
1227 ist->next_pts += ((int64_t)AV_TIME_BASE/2 * data_size) /
1228 (ist->st->codec->sample_rate * ist->st->codec->channels);
1229 break;}
1230 case CODEC_TYPE_VIDEO:
1231 data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1232 /* XXX: allocate picture correctly */
1233 avcodec_get_frame_defaults(&picture);
1234
1235 ret = avcodec_decode_video(ist->st->codec,
1236 &picture, &got_picture, ptr, len);
1237 ist->st->quality= picture.quality;
1238 if (ret < 0)
1239 goto fail_decode;
1240 if (!got_picture) {
1241 /* no picture yet */
1242 goto discard_packet;
1243 }
1244 if (ist->st->codec->time_base.num != 0) {
1245 ist->next_pts += ((int64_t)AV_TIME_BASE *
1246 ist->st->codec->time_base.num) /
1247 ist->st->codec->time_base.den;
1248 }
1249 len = 0;
1250 break;
1251 case CODEC_TYPE_SUBTITLE:
1252 ret = avcodec_decode_subtitle(ist->st->codec,
1253 &subtitle, &got_subtitle, ptr, len);
1254 if (ret < 0)
1255 goto fail_decode;
1256 if (!got_subtitle) {
1257 goto discard_packet;
1258 }
1259 subtitle_to_free = &subtitle;
1260 len = 0;
1261 break;
1262 default:
1263 goto fail_decode;
1264 }
1265 } else {
1266 switch(ist->st->codec->codec_type) {
1267 case CODEC_TYPE_AUDIO:
1268 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1269 (ist->st->codec->sample_rate * ist->st->codec->channels);
1270 break;
1271 case CODEC_TYPE_VIDEO:
1272 if (ist->st->codec->time_base.num != 0) {
1273 ist->next_pts += ((int64_t)AV_TIME_BASE *
1274 ist->st->codec->time_base.num) /
1275 ist->st->codec->time_base.den;
1276 }
1277 break;
1278 }
1279 data_buf = ptr;
1280 data_size = len;
1281 ret = len;
1282 len = 0;
1283 }
1284
1285 buffer_to_free = NULL;
1286 if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1287 pre_process_video_frame(ist, (AVPicture *)&picture,
1288 &buffer_to_free);
1289 }
1290
1291 // preprocess audio (volume)
1292 if (ist->st->codec->codec_type == CODEC_TYPE_AUDIO) {
1293 if (audio_volume != 256) {
1294 short *volp;
1295 volp = samples;
1296 for(i=0;i<(data_size / sizeof(short));i++) {
1297 int v = ((*volp) * audio_volume + 128) >> 8;
1298 if (v < -32768) v = -32768;
1299 if (v > 32767) v = 32767;
1300 *volp++ = v;
1301 }
1302 }
1303 }
1304
1305 /* frame rate emulation */
1306 if (ist->st->codec->rate_emu) {
1307 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec->time_base.num, 1000000, ist->st->codec->time_base.den);
1308 int64_t now = av_gettime() - ist->start;
1309 if (pts > now)
1310 usleep(pts - now);
1311
1312 ist->frame++;
1313 }
1314
1315 #if 0
1316 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1317 is the one of the next displayed one */
1318 /* XXX: add mpeg4 too ? */
1319 if (ist->st->codec->codec_id == CODEC_ID_MPEG1VIDEO) {
1320 if (ist->st->codec->pict_type != B_TYPE) {
1321 int64_t tmp;
1322 tmp = ist->last_ip_pts;
1323 ist->last_ip_pts = ist->frac_pts.val;
1324 ist->frac_pts.val = tmp;
1325 }
1326 }
1327 #endif
1328 /* if output time reached then transcode raw format,
1329 encode packets and output them */
1330 if (start_time == 0 || ist->pts >= start_time)
1331 for(i=0;i<nb_ostreams;i++) {
1332 int frame_size;
1333
1334 ost = ost_table[i];
1335 if (ost->source_index == ist_index) {
1336 os = output_files[ost->file_index];
1337
1338 #if 0
1339 printf("%d: got pts=%0.3f %0.3f\n", i,
1340 (double)pkt->pts / AV_TIME_BASE,
1341 ((double)ist->pts / AV_TIME_BASE) -
1342 ((double)ost->st->pts.val * ost->st->time_base.num / ost->st->time_base.den));
1343 #endif
1344 /* set the input output pts pairs */
1345 //ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
1346
1347 if (ost->encoding_needed) {
1348 switch(ost->st->codec->codec_type) {
1349 case CODEC_TYPE_AUDIO:
1350 do_audio_out(os, ost, ist, data_buf, data_size);
1351 break;
1352 case CODEC_TYPE_VIDEO:
1353 do_video_out(os, ost, ist, &picture, &frame_size);
1354 video_size += frame_size;
1355 if (do_vstats && frame_size)
1356 do_video_stats(os, ost, frame_size);
1357 break;
1358 case CODEC_TYPE_SUBTITLE:
1359 do_subtitle_out(os, ost, ist, &subtitle,
1360 pkt->pts);
1361 break;
1362 default:
1363 av_abort();
1364 }
1365 } else {
1366 AVFrame avframe; //FIXME/XXX remove this
1367 AVPacket opkt;
1368 av_init_packet(&opkt);
1369
1370 /* no reencoding needed : output the packet directly */
1371 /* force the input stream PTS */
1372
1373 avcodec_get_frame_defaults(&avframe);
1374 ost->st->codec->coded_frame= &avframe;
1375 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1376
1377 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO)
1378 audio_size += data_size;
1379 else if (ost->st->codec->codec_type == CODEC_TYPE_VIDEO) {
1380 video_size += data_size;
1381 ost->sync_opts++;
1382 }
1383
1384 opkt.stream_index= ost->index;
1385 if(pkt->pts != AV_NOPTS_VALUE)
1386 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);
1387 else
1388 opkt.pts= AV_NOPTS_VALUE;
1389
1390 {
1391 int64_t dts;
1392 if (pkt->dts == AV_NOPTS_VALUE)
1393 dts = ist->next_pts;
1394 else
1395 dts= av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1396 opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
1397 }
1398 opkt.flags= pkt->flags;
1399 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
1400 opkt.destruct= av_destruct_packet;
1401 av_interleaved_write_frame(os, &opkt);
1402 ost->st->codec->frame_number++;
1403 ost->frame_number++;
1404 av_free_packet(&opkt);
1405 }
1406 }
1407 }
1408 av_free(buffer_to_free);
1409 /* XXX: allocate the subtitles in the codec ? */
1410 if (subtitle_to_free) {
1411 if (subtitle_to_free->rects != NULL) {
1412 for (i = 0; i < subtitle_to_free->num_rects; i++) {
1413 av_free(subtitle_to_free->rects[i].bitmap);
1414 av_free(subtitle_to_free->rects[i].rgba_palette);
1415 }
1416 av_freep(&subtitle_to_free->rects);
1417 }
1418 subtitle_to_free->num_rects = 0;
1419 subtitle_to_free = NULL;
1420 }
1421 }
1422 discard_packet:
1423 if (pkt == NULL) {
1424 /* EOF handling */
1425
1426 for(i=0;i<nb_ostreams;i++) {
1427 ost = ost_table[i];
1428 if (ost->source_index == ist_index) {
1429 AVCodecContext *enc= ost->st->codec;
1430 os = output_files[ost->file_index];
1431
1432 if(ost->st->codec->codec_type == CODEC_TYPE_AUDIO && enc->frame_size <=1)
1433 continue;
1434 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1435 continue;
1436
1437 if (ost->encoding_needed) {
1438 for(;;) {
1439 AVPacket pkt;
1440 av_init_packet(&pkt);
1441 pkt.stream_index= ost->index;
1442
1443 switch(ost->st->codec->codec_type) {
1444 case CODEC_TYPE_AUDIO:
1445 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1446 audio_size += ret;
1447 pkt.flags |= PKT_FLAG_KEY;
1448 break;
1449 case CODEC_TYPE_VIDEO:
1450 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1451 video_size += ret;
1452 if(enc->coded_frame && enc->coded_frame->key_frame)
1453 pkt.flags |= PKT_FLAG_KEY;
1454 if (ost->logfile && enc->stats_out) {
1455 fprintf(ost->logfile, "%s", enc->stats_out);
1456 }
1457 break;
1458 default:
1459 ret=-1;
1460 }
1461
1462 if(ret<=0)
1463 break;
1464 pkt.data= bit_buffer;
1465 pkt.size= ret;
1466 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1467 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1468 av_interleaved_write_frame(os, &pkt);
1469 }
1470 }
1471 }
1472 }
1473 }
1474
1475 return 0;
1476 fail_decode:
1477 return -1;
1478 }
1479
1480
1481 /*
1482 * The following code is the main loop of the file converter
1483 */
1484 static int av_encode(AVFormatContext **output_files,
1485 int nb_output_files,
1486 AVFormatContext **input_files,
1487 int nb_input_files,
1488 AVStreamMap *stream_maps, int nb_stream_maps)
1489 {
1490 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1491 AVFormatContext *is, *os;
1492 AVCodecContext *codec, *icodec;
1493 AVOutputStream *ost, **ost_table = NULL;
1494 AVInputStream *ist, **ist_table = NULL;
1495 AVInputFile *file_table;
1496 AVFormatContext *stream_no_data;
1497 int key;
1498
1499 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1500 if (!file_table)
1501 goto fail;
1502
1503 /* input stream init */
1504 j = 0;
1505 for(i=0;i<nb_input_files;i++) {
1506 is = input_files[i];
1507 file_table[i].ist_index = j;
1508 file_table[i].nb_streams = is->nb_streams;
1509 j += is->nb_streams;
1510 }
1511 nb_istreams = j;
1512
1513 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1514 if (!ist_table)
1515 goto fail;
1516
1517 for(i=0;i<nb_istreams;i++) {
1518 ist = av_mallocz(sizeof(AVInputStream));
1519 if (!ist)
1520 goto fail;
1521 ist_table[i] = ist;
1522 }
1523 j = 0;
1524 for(i=0;i<nb_input_files;i++) {
1525 is = input_files[i];
1526 for(k=0;k<is->nb_streams;k++) {
1527 ist = ist_table[j++];
1528 ist->st = is->streams[k];
1529 ist->file_index = i;
1530 ist->index = k;
1531 ist->discard = 1; /* the stream is discarded by default
1532 (changed later) */
1533
1534 if (ist->st->codec->rate_emu) {
1535 ist->start = av_gettime();
1536 ist->frame = 0;
1537 }
1538 }
1539 }
1540
1541 /* output stream init */
1542 nb_ostreams = 0;
1543 for(i=0;i<nb_output_files;i++) {
1544 os = output_files[i];
1545 nb_ostreams += os->nb_streams;
1546 }
1547 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1548 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1549 exit(1);
1550 }
1551
1552 /* Sanity check the mapping args -- do the input files & streams exist? */
1553 for(i=0;i<nb_stream_maps;i++) {
1554 int fi = stream_maps[i].file_index;
1555 int si = stream_maps[i].stream_index;
1556
1557 if (fi < 0 || fi > nb_input_files - 1 ||
1558 si < 0 || si > file_table[fi].nb_streams - 1) {
1559 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1560 exit(1);
1561 }
1562 fi = stream_maps[i].sync_file_index;
1563 si = stream_maps[i].sync_stream_index;
1564 if (fi < 0 || fi > nb_input_files - 1 ||
1565 si < 0 || si > file_table[fi].nb_streams - 1) {
1566 fprintf(stderr,"Could not find sync stream #%d.%d\n", fi, si);
1567 exit(1);
1568 }
1569 }
1570
1571 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1572 if (!ost_table)
1573 goto fail;
1574 for(i=0;i<nb_ostreams;i++) {
1575 ost = av_mallocz(sizeof(AVOutputStream));
1576 if (!ost)
1577 goto fail;
1578 ost_table[i] = ost;
1579 }
1580
1581 n = 0;
1582 for(k=0;k<nb_output_files;k++) {
1583 os = output_files[k];
1584 for(i=0;i<os->nb_streams;i++) {
1585 int found;
1586 ost = ost_table[n++];
1587 ost->file_index = k;
1588 ost->index = i;
1589 ost->st = os->streams[i];
1590 if (nb_stream_maps > 0) {
1591 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1592 stream_maps[n-1].stream_index;
1593
1594 /* Sanity check that the stream types match */
1595 if (ist_table[ost->source_index]->st->codec->codec_type != ost->st->codec->codec_type) {
1596 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1597 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1598 ost->file_index, ost->index);
1599 exit(1);
1600 }
1601
1602 } else {
1603 /* get corresponding input stream index : we select the first one with the right type */
1604 found = 0;
1605 for(j=0;j<nb_istreams;j++) {
1606 ist = ist_table[j];
1607 if (ist->discard &&
1608 ist->st->codec->codec_type == ost->st->codec->codec_type) {
1609 ost->source_index = j;
1610 found = 1;
1611 break;
1612 }
1613 }
1614
1615 if (!found) {
1616 /* try again and reuse existing stream */
1617 for(j=0;j<nb_istreams;j++) {
1618 ist = ist_table[j];
1619 if (ist->st->codec->codec_type == ost->st->codec->codec_type) {
1620 ost->source_index = j;
1621 found = 1;
1622 }
1623 }
1624 if (!found) {
1625 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1626 ost->file_index, ost->index);
1627 exit(1);
1628 }
1629 }
1630 }
1631 ist = ist_table[ost->source_index];
1632 ist->discard = 0;
1633 ost->sync_ist = (nb_stream_maps > 0) ?
1634 ist_table[file_table[stream_maps[n-1].sync_file_index].ist_index +
1635 stream_maps[n-1].sync_stream_index] : ist;
1636 }
1637 }
1638
1639 /* for each output stream, we compute the right encoding parameters */
1640 for(i=0;i<nb_ostreams;i++) {
1641 ost = ost_table[i];
1642 ist = ist_table[ost->source_index];
1643
1644 codec = ost->st->codec;
1645 icodec = ist->st->codec;
1646
1647 if (ost->st->stream_copy) {
1648 /* if stream_copy is selected, no need to decode or encode */
1649 codec->codec_id = icodec->codec_id;
1650 codec->codec_type = icodec->codec_type;
1651 if(!codec->codec_tag) codec->codec_tag = icodec->codec_tag;
1652 codec->bit_rate = icodec->bit_rate;
1653 codec->extradata= icodec->extradata;
1654 codec->extradata_size= icodec->extradata_size;
1655 codec->time_base = icodec->time_base;
1656 switch(codec->codec_type) {
1657 case CODEC_TYPE_AUDIO:
1658 codec->sample_rate = icodec->sample_rate;
1659 codec->channels = icodec->channels;
1660 codec->frame_size = icodec->frame_size;
1661 codec->block_align= icodec->block_align;
1662 break;
1663 case CODEC_TYPE_VIDEO:
1664 codec->width = icodec->width;
1665 codec->height = icodec->height;
1666 codec->has_b_frames = icodec->has_b_frames;
1667 break;
1668 case CODEC_TYPE_SUBTITLE:
1669 break;
1670 default:
1671 av_abort();
1672 }
1673 } else {
1674 switch(codec->codec_type) {
1675 case CODEC_TYPE_AUDIO:
1676 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1677 goto fail;
1678
1679 if (codec->channels == icodec->channels &&
1680 codec->sample_rate == icodec->sample_rate) {
1681 ost->audio_resample = 0;
1682 } else {
1683 if (codec->channels != icodec->channels &&
1684 (icodec->codec_id == CODEC_ID_AC3 ||
1685 icodec->codec_id == CODEC_ID_DTS)) {
1686 /* Special case for 5:1 AC3 and DTS input */
1687 /* and mono or stereo output */
1688 /* Request specific number of channels */
1689 icodec->channels = codec->channels;
1690 if (codec->sample_rate == icodec->sample_rate)
1691 ost->audio_resample = 0;
1692 else {
1693 ost->audio_resample = 1;
1694 }
1695 } else {
1696 ost->audio_resample = 1;
1697 }
1698 }
1699 if(audio_sync_method>1)
1700 ost->audio_resample = 1;
1701
1702 if(ost->audio_resample){
1703 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1704 codec->sample_rate, icodec->sample_rate);
1705 if(!ost->resample){
1706 printf("Can't resample. Aborting.\n");
1707 av_abort();
1708 }
1709 }
1710 ist->decoding_needed = 1;
1711 ost->encoding_needed = 1;
1712 break;
1713 case CODEC_TYPE_VIDEO:
1714 if (codec->width == icodec->width &&
1715 codec->height == icodec->height &&
1716 frame_topBand == 0 &&
1717 frame_bottomBand == 0 &&
1718 frame_leftBand == 0 &&
1719 frame_rightBand == 0 &&
1720 frame_padtop == 0 &&
1721 frame_padbottom == 0 &&
1722 frame_padleft == 0 &&
1723 frame_padright == 0)
1724 {
1725 ost->video_resample = 0;
1726 ost->video_crop = 0;
1727 ost->video_pad = 0;
1728 } else if ((codec->width == icodec->width -
1729 (frame_leftBand + frame_rightBand)) &&
1730 (codec->height == icodec->height -
1731 (frame_topBand + frame_bottomBand)))
1732 {
1733 ost->video_resample = 0;
1734 ost->video_crop = 1;
1735 ost->topBand = frame_topBand;
1736 ost->leftBand = frame_leftBand;
1737 } else if ((codec->width == icodec->width +
1738 (frame_padleft + frame_padright)) &&
1739 (codec->height == icodec->height +
1740 (frame_padtop + frame_padbottom))) {
1741 ost->video_resample = 0;
1742 ost->video_crop = 0;
1743 ost->video_pad = 1;
1744 ost->padtop = frame_padtop;
1745 ost->padleft = frame_padleft;
1746 ost->padbottom = frame_padbottom;
1747 ost->padright = frame_padright;
1748 avcodec_get_frame_defaults(&ost->pict_tmp);
1749 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1750 codec->width, codec->height ) )
1751 goto fail;
1752 } else {
1753 ost->video_resample = 1;
1754 ost->video_crop = 0; // cropping is handled as part of resample
1755 avcodec_get_frame_defaults(&ost->pict_tmp);
1756 if( avpicture_alloc( (AVPicture*)&ost->pict_tmp, PIX_FMT_YUV420P,
1757 codec->width, codec->height ) )
1758 goto fail;
1759
1760 ost->img_resample_ctx = img_resample_full_init(
1761 codec->width, codec->height,
1762 icodec->width, icodec->height,
1763 frame_topBand, frame_bottomBand,
1764 frame_leftBand, frame_rightBand,
1765 frame_padtop, frame_padbottom,
1766 frame_padleft, frame_padright);
1767
1768 ost->padtop = frame_padtop;
1769 ost->padleft = frame_padleft;
1770 ost->padbottom = frame_padbottom;
1771 ost->padright = frame_padright;
1772
1773 }
1774 ost->encoding_needed = 1;
1775 ist->decoding_needed = 1;
1776 break;
1777 case CODEC_TYPE_SUBTITLE:
1778 ost->encoding_needed = 1;
1779 ist->decoding_needed = 1;
1780 break;
1781 default:
1782 av_abort();
1783 break;
1784 }
1785 /* two pass mode */
1786 if (ost->encoding_needed &&
1787 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1788 char logfilename[1024];
1789 FILE *f;
1790 int size;
1791 char *logbuffer;
1792
1793 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1794 pass_logfilename ?
1795 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1796 if (codec->flags & CODEC_FLAG_PASS1) {
1797 f = fopen(logfilename, "w");
1798 if (!f) {
1799 perror(logfilename);
1800 exit(1);
1801 }
1802 ost->logfile = f;
1803 } else {
1804 /* read the log file */
1805 f = fopen(logfilename, "r");
1806 if (!f) {
1807 perror(logfilename);
1808 exit(1);
1809 }
1810 fseek(f, 0, SEEK_END);
1811 size = ftell(f);
1812 fseek(f, 0, SEEK_SET);
1813 logbuffer = av_malloc(size + 1);
1814 if (!logbuffer) {
1815 fprintf(stderr, "Could not allocate log buffer\n");
1816 exit(1);
1817 }
1818 size = fread(logbuffer, 1, size, f);
1819 fclose(f);
1820 logbuffer[size] = '\0';
1821 codec->stats_in = logbuffer;
1822 }
1823 }
1824 }
1825 if(codec->codec_type == CODEC_TYPE_VIDEO){
1826 int size= codec->width * codec->height;
1827 bit_buffer_size= FFMAX(bit_buffer_size, 4*size);
1828 }
1829 }
1830
1831 if (!bit_buffer)
1832 bit_buffer = av_malloc(bit_buffer_size);
1833 if (!bit_buffer)
1834 goto fail;
1835
1836 /* dump the file output parameters - cannot be done before in case
1837 of stream copy */
1838 for(i=0;i<nb_output_files;i++) {
1839 dump_format(output_files[i], i, output_files[i]->filename, 1);
1840 }
1841
1842 /* dump the stream mapping */
1843 if (verbose >= 0) {
1844 fprintf(stderr, "Stream mapping:\n");
1845 for(i=0;i<nb_ostreams;i++) {
1846 ost = ost_table[i];
1847 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
1848 ist_table[ost->source_index]->file_index,
1849 ist_table[ost->source_index]->index,
1850 ost->file_index,
1851 ost->index);
1852 if (ost->sync_ist != ist_table[ost->source_index])
1853 fprintf(stderr, " [sync #%d.%d]",
1854 ost->sync_ist->file_index,
1855 ost->sync_ist->index);
1856 fprintf(stderr, "\n");
1857 }
1858 }
1859
1860 /* open each encoder */
1861 for(i=0;i<nb_ostreams;i++) {
1862 ost = ost_table[i];
1863 if (ost->encoding_needed) {
1864 AVCodec *codec;
1865 codec = avcodec_find_encoder(ost->st->codec->codec_id);
1866 if (!codec) {
1867 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1868 ost->file_index, ost->index);
1869 exit(1);
1870 }
1871 if (avcodec_open(ost->st->codec, codec) < 0) {
1872 fprintf(stderr, "Error while opening codec for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1873 ost->file_index, ost->index);
1874 exit(1);
1875 }
1876 extra_size += ost->st->codec->extradata_size;
1877 }
1878 }
1879
1880 /* open each decoder */
1881 for(i=0;i<nb_istreams;i++) {
1882 ist = ist_table[i];
1883 if (ist->decoding_needed) {
1884 AVCodec *codec;
1885 codec = avcodec_find_decoder(ist->st->codec->codec_id);
1886 if (!codec) {
1887 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1888 ist->st->codec->codec_id, ist->file_index, ist->index);
1889 exit(1);
1890 }
1891 if (avcodec_open(ist->st->codec, codec) < 0) {
1892 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1893 ist->file_index, ist->index);
1894 exit(1);
1895 }
1896 //if (ist->st->codec->codec_type == CODEC_TYPE_VIDEO)
1897 // ist->st->codec->flags |= CODEC_FLAG_REPEAT_FIELD;
1898 }
1899 }
1900
1901 /* init pts */
1902 for(i=0;i<nb_istreams;i++) {
1903 ist = ist_table[i];
1904 is = input_files[ist->file_index];
1905 ist->pts = 0;
1906 ist->next_pts = av_rescale_q(ist->st->start_time, ist->st->time_base, AV_TIME_BASE_Q);
1907 if(ist->st->start_time == AV_NOPTS_VALUE)
1908 ist->next_pts=0;
1909 if(input_files_ts_offset[ist->file_index])
1910 ist->next_pts= AV_NOPTS_VALUE;
1911 ist->is_start = 1;
1912 }
1913
1914 /* compute buffer size max (should use a complete heuristic) */
1915 for(i=0;i<nb_input_files;i++) {
1916 file_table[i].buffer_size_max = 2048;
1917 }
1918
1919 /* set meta data information from input file if required */
1920 for (i=0;i<nb_meta_data_maps;i++) {
1921 AVFormatContext *out_file;
1922 AVFormatContext *in_file;
1923
1924 int out_file_index = meta_data_maps[i].out_file;
1925 int in_file_index = meta_data_maps[i].in_file;
1926 if ( out_file_index < 0 || out_file_index >= nb_output_files ) {
1927 fprintf(stderr, "Invalid output file index %d map_meta_data(%d,%d)\n", out_file_index, out_file_index, in_file_index);
1928 ret = -EINVAL;
1929 goto fail;
1930 }
1931 if ( in_file_index < 0 || in_file_index >= nb_input_files ) {
1932 fprintf(stderr, "Invalid input file index %d map_meta_data(%d,%d)\n", in_file_index, out_file_index, in_file_index);
1933 ret = -EINVAL;
1934 goto fail;
1935 }
1936
1937 out_file = output_files[out_file_index];
1938 in_file = input_files[in_file_index];
1939
1940 strcpy(out_file->title, in_file->title);
1941 strcpy(out_file->author, in_file->author);
1942 strcpy(out_file->copyright, in_file->copyright);
1943 strcpy(out_file->comment, in_file->comment);
1944 strcpy(out_file->album, in_file->album);
1945 out_file->year = in_file->year;
1946 out_file->track = in_file->track;
1947 strcpy(out_file->genre, in_file->genre);
1948 }
1949
1950 /* open files and write file headers */
1951 for(i=0;i<nb_output_files;i++) {
1952 os = output_files[i];
1953 if (av_write_header(os) < 0) {
1954 fprintf(stderr, "Could not write header for output file #%d (incorrect codec parameters ?)\n", i);
1955 ret = -EINVAL;
1956 goto fail;
1957 }
1958 }
1959
1960 #ifndef CONFIG_WIN32
1961 if ( !using_stdin && verbose >= 0) {
1962 fprintf(stderr, "Press [q] to stop encoding\n");
1963 url_set_interrupt_cb(decode_interrupt_cb);
1964 }
1965 #endif
1966 term_init();
1967
1968 stream_no_data = 0;
1969 key = -1;
1970
1971 for(; received_sigterm == 0;) {
1972 int file_index, ist_index;
1973 AVPacket pkt;
1974 double ipts_min;
1975 double opts_min;
1976
1977 redo:
1978 ipts_min= 1e100;
1979 opts_min= 1e100;
1980 /* if 'q' pressed, exits */
1981 if (!using_stdin) {
1982 if (q_pressed)
1983 break;
1984 /* read_key() returns 0 on EOF */
1985 key = read_key();
1986 if (key == 'q')
1987 break;
1988 }
1989
1990 /* select the stream that we must read now by looking at the
1991 smallest output pts */
1992 file_index = -1;
1993 for(i=0;i<nb_ostreams;i++) {
1994 double ipts, opts;
1995 ost = ost_table[i];
1996 os = output_files[ost->file_index];
1997 ist = ist_table[ost->source_index];
1998 if(ost->st->codec->codec_type == CODEC_TYPE_VIDEO)
1999 opts = ost->sync_opts * av_q2d(ost->st->codec->time_base);
2000 else
2001 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2002 ipts = (double)ist->pts;
2003 if (!file_table[ist->file_index].eof_reached){
2004 if(ipts < ipts_min) {
2005 ipts_min = ipts;
2006 if(input_sync ) file_index = ist->file_index;
2007 }
2008 if(opts < opts_min) {
2009 opts_min = opts;
2010 if(!input_sync) file_index = ist->file_index;
2011 }
2012 }
2013 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2014 file_index= -1;
2015 break;
2016 }
2017 }
2018 /* if none, if is finished */
2019 if (file_index < 0) {
2020 break;
2021 }
2022
2023 /* finish if recording time exhausted */
2024 if (recording_time > 0 && opts_min >= (recording_time / 1000000.0))
2025 break;
2026
2027 /* finish if limit size exhausted */
2028 if (limit_filesize != 0 && (limit_filesize * 1024) < url_ftell(&output_files[0]->pb))
2029 break;
2030
2031 /* read a frame from it and output it in the fifo */
2032 is = input_files[file_index];
2033 if (av_read_frame(is, &pkt) < 0) {
2034 file_table[file_index].eof_reached = 1;
2035 if (opt_shortest) break; else continue; //
2036 }
2037
2038 if (!pkt.size) {
2039 stream_no_data = is;
2040 } else {
2041 stream_no_data = 0;
2042 }
2043 if (do_pkt_dump) {
2044 av_pkt_dump(stdout, &pkt, do_hex_dump);
2045 }
2046 /* the following test is needed in case new streams appear
2047 dynamically in stream : we ignore them */
2048 if (pkt.stream_index >= file_table[file_index].nb_streams)
2049 goto discard_packet;
2050 ist_index = file_table[file_index].ist_index + pkt.stream_index;
2051 ist = ist_table[ist_index];
2052 if (ist->discard)
2053 goto discard_packet;
2054
2055 // 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);
2056 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE) {
2057 int64_t delta= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q) - ist->next_pts;
2058 if(ABS(delta) > 10LL*AV_TIME_BASE && !copy_ts){
2059 input_files_ts_offset[ist->file_index]-= delta;
2060 if (verbose > 2)
2061 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, input_files_ts_offset[ist->file_index]);
2062 for(i=0; i<file_table[file_index].nb_streams; i++){
2063 int index= file_table[file_index].ist_index + i;
2064 ist_table[index]->next_pts += delta;
2065 ist_table[index]->is_start=1;
2066 }
2067 }
2068 }
2069
2070 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
2071 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2072
2073 if (verbose >= 0)
2074 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2075 ist->file_index, ist->index);
2076
2077 av_free_packet(&pkt);
2078 goto redo;
2079 }
2080
2081 discard_packet:
2082 av_free_packet(&pkt);
2083
2084 /* dump report by using the output first video and audio streams */
2085 print_report(output_files, ost_table, nb_ostreams, 0);
2086 }
2087
2088 /* at the end of stream, we must flush the decoder buffers */
2089 for(i=0;i<nb_istreams;i++) {
2090 ist = ist_table[i];
2091 if (ist->decoding_needed) {
2092 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2093 }
2094 }
2095
2096 term_exit();
2097
2098 /* write the trailer if needed and close file */
2099 for(i=0;i<nb_output_files;i++) {
2100 os = output_files[i];
2101 av_write_trailer(os);
2102 }
2103
2104 /* dump report by using the first video and audio streams */
2105 print_report(output_files, ost_table, nb_ostreams, 1);
2106
2107 /* close each encoder */
2108 for(i=0;i<nb_ostreams;i++) {
2109 ost = ost_table[i];
2110 if (ost->encoding_needed) {
2111 av_freep(&ost->st->codec->stats_in);
2112 avcodec_close(ost->st->codec);
2113 }
2114 }
2115
2116 /* close each decoder */
2117 for(i=0;i<nb_istreams;i++) {
2118 ist = ist_table[i];
2119 if (ist->decoding_needed) {
2120 avcodec_close(ist->st->codec);
2121 }
2122 }
2123
2124 /* finished ! */
2125
2126 ret = 0;
2127 fail1:
2128 av_freep(&bit_buffer);
2129 av_free(file_table);
2130
2131 if (ist_table) {
2132 for(i=0;i<nb_istreams;i++) {
2133 ist = ist_table[i];
2134 av_free(ist);
2135 }
2136 av_free(ist_table);
2137 }
2138 if (ost_table) {
2139 for(i=0;i<nb_ostreams;i++) {
2140 ost = ost_table[i];
2141 if (ost) {
2142 if (ost->logfile) {
2143 fclose(ost->logfile);
2144 ost->logfile = NULL;
2145 }
2146 fifo_free(&ost->fifo); /* works even if fifo is not
2147 initialized but set to zero */
2148 av_free(ost->pict_tmp.data[0]);
2149 if (ost->video_resample)
2150 img_resample_close(ost->img_resample_ctx);
2151 if (ost->audio_resample)
2152 audio_resample_close(ost->resample);
2153 av_free(ost);
2154 }
2155 }
2156 av_free(ost_table);
2157 }
2158 return ret;
2159 fail:
2160 ret = -ENOMEM;
2161 goto fail1;
2162 }
2163
2164 #if 0
2165 int file_read(const char *filename)
2166 {
2167 URLContext *h;
2168 unsigned char buffer[1024];
2169 int len, i;
2170
2171 if (url_open(&h, filename, O_RDONLY) < 0) {
2172 printf("could not open '%s'\n", filename);
2173 return -1;
2174 }
2175 for(;;) {
2176 len = url_read(h, buffer, sizeof(buffer));
2177 if (len <= 0)
2178 break;
2179 for(i=0;i<len;i++) putchar(buffer[i]);
2180 }
2181 url_close(h);
2182 return 0;
2183 }
2184 #endif
2185
2186 static void opt_image_format(const char *arg)
2187 {
2188 AVImageFormat *f;
2189
2190 for(f = first_image_format; f != NULL; f = f->next) {
2191 if (!strcmp(arg, f->name))
2192 break;
2193 }
2194 if (!f) {
2195 fprintf(stderr, "Unknown image format: '%s'\n", arg);
2196 exit(1);
2197 }
2198 image_format = f;
2199 }
2200
2201 static void opt_format(const char *arg)
2202 {
2203 /* compatibility stuff for pgmyuv */
2204 if (!strcmp(arg, "pgmyuv")) {
2205 pgmyuv_compatibility_hack=1;
2206 // opt_image_format(arg);
2207 arg = "image2";
2208 }
2209
2210 file_iformat = av_find_input_format(arg);
2211 file_oformat = guess_format(arg, NULL, NULL);
2212 if (!file_iformat && !file_oformat) {
2213 fprintf(stderr, "Unknown input or output format: %s\n", arg);
2214 exit(1);
2215 }
2216 }
2217
2218 static void opt_video_bitrate(const char *arg)
2219 {
2220 video_bit_rate = atoi(arg) * 1000;
2221 }
2222
2223 static void opt_video_bitrate_tolerance(const char *arg)
2224 {
2225 video_bit_rate_tolerance = atoi(arg) * 1000;
2226 }
2227
2228 static void opt_video_bitrate_max(const char *arg)
2229 {
2230 video_rc_max_rate = atoi(arg) * 1000;
2231 }
2232
2233 static void opt_video_bitrate_min(const char *arg)
2234 {
2235 video_rc_min_rate = atoi(arg) * 1000;
2236 }
2237
2238 static void opt_video_buffer_size(const char *arg)
2239 {
2240 video_rc_buffer_size = atoi(arg) * 8*1024;
2241 }
2242
2243 static void opt_video_rc_eq(char *arg)
2244 {
2245 video_rc_eq = arg;
2246 }
2247
2248 static void opt_video_rc_override_string(char *arg)
2249 {
2250 video_rc_override_string = arg;
2251 }
2252
2253
2254 static void opt_workaround_bugs(const char *arg)
2255 {
2256 workaround_bugs = atoi(arg);
2257 }
2258
2259 static void opt_me_threshold(const char *arg)
2260 {
2261 me_threshold = atoi(arg);
2262 }
2263
2264 static void opt_mb_threshold(const char *arg)
2265 {
2266 mb_threshold = atoi(arg);
2267 }
2268
2269 static void opt_verbose(const char *arg)
2270 {
2271 verbose = atoi(arg);
2272 av_log_set_level(atoi(arg));
2273 }
2274
2275 static void opt_frame_rate(const char *arg)
2276 {
2277 if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
2278 fprintf(stderr, "Incorrect frame rate\n");
2279 exit(1);
2280 }
2281 }
2282
2283 static void opt_frame_crop_top(const char *arg)
2284 {
2285 frame_topBand = atoi(arg);
2286 if (frame_topBand < 0) {
2287 fprintf(stderr, "Incorrect top crop size\n");
2288 exit(1);
2289 }
2290 if ((frame_topBand % 2) != 0) {
2291 fprintf(stderr, "Top crop size must be a multiple of 2\n");
2292 exit(1);
2293 }
2294 if ((frame_topBand) >= frame_height){
2295 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2296 exit(1);
2297 }
2298 frame_height -= frame_topBand;
2299 }
2300
2301 static void opt_frame_crop_bottom(const char *arg)
2302 {
2303 frame_bottomBand = atoi(arg);
2304 if (frame_bottomBand < 0) {
2305 fprintf(stderr, "Incorrect bottom crop size\n");
2306 exit(1);
2307 }
2308 if ((frame_bottomBand % 2) != 0) {
2309 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
2310 exit(1);
2311 }
2312 if ((frame_bottomBand) >= frame_height){
2313 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2314 exit(1);
2315 }
2316 frame_height -= frame_bottomBand;
2317 }
2318
2319 static void opt_frame_crop_left(const char *arg)
2320 {
2321 frame_leftBand = atoi(arg);
2322 if (frame_leftBand < 0) {
2323 fprintf(stderr, "Incorrect left crop size\n");
2324 exit(1);
2325 }
2326 if ((frame_leftBand % 2) != 0) {
2327 fprintf(stderr, "Left crop size must be a multiple of 2\n");
2328 exit(1);
2329 }
2330 if ((frame_leftBand) >= frame_width){
2331 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2332 exit(1);
2333 }
2334 frame_width -= frame_leftBand;
2335 }
2336
2337 static void opt_frame_crop_right(const char *arg)
2338 {
2339 frame_rightBand = atoi(arg);
2340 if (frame_rightBand < 0) {
2341 fprintf(stderr, "Incorrect right crop size\n");
2342 exit(1);
2343 }
2344 if ((frame_rightBand % 2) != 0) {
2345 fprintf(stderr, "Right crop size must be a multiple of 2\n");
2346 exit(1);
2347 }
2348 if ((frame_rightBand) >= frame_width){
2349 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
2350 exit(1);
2351 }
2352 frame_width -= frame_rightBand;
2353 }
2354
2355 static void opt_frame_size(const char *arg)
2356 {
2357 if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
2358 fprintf(stderr, "Incorrect frame size\n");
2359 exit(1);
2360 }
2361 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2362 fprintf(stderr, "Frame size must be a multiple of 2\n");
2363 exit(1);
2364 }
2365 }
2366
2367
2368 #define SCALEBITS 10
2369 #define ONE_HALF (1 << (SCALEBITS - 1))
2370 #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
2371
2372 #define RGB_TO_Y(r, g, b) \
2373 ((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
2374 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
2375
2376 #define RGB_TO_U(r1, g1, b1, shift)\
2377 (((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
2378 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2379
2380 #define RGB_TO_V(r1, g1, b1, shift)\
2381 (((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
2382 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
2383
2384 static void opt_pad_color(const char *arg) {
2385 /* Input is expected to be six hex digits similar to
2386 how colors are expressed in html tags (but without the #) */
2387 int rgb = strtol(arg, NULL, 16);
2388 int r,g,b;
2389
2390 r = (rgb >> 16);
2391 g = ((rgb >> 8) & 255);
2392 b = (rgb & 255);
2393
2394 padcolor[0] = RGB_TO_Y(r,g,b);
2395 padcolor[1] = RGB_TO_U(r,g,b,0);
2396 padcolor[2] = RGB_TO_V(r,g,b,0);
2397 }
2398
2399 static void opt_frame_pad_top(const char *arg)
2400 {
2401 frame_padtop = atoi(arg);
2402 if (frame_padtop < 0) {
2403 fprintf(stderr, "Incorrect top pad size\n");
2404 exit(1);
2405 }
2406 if ((frame_padtop % 2) != 0) {
2407 fprintf(stderr, "Top pad size must be a multiple of 2\n");
2408 exit(1);
2409 }
2410 }
2411
2412 static void opt_frame_pad_bottom(const char *arg)
2413 {
2414 frame_padbottom = atoi(arg);
2415 if (frame_padbottom < 0) {
2416 fprintf(stderr, "Incorrect bottom pad size\n");
2417 exit(1);
2418 }
2419 if ((frame_padbottom % 2) != 0) {
2420 fprintf(stderr, "Bottom pad size must be a multiple of 2\n");
2421 exit(1);
2422 }
2423 }
2424
2425
2426 static void opt_frame_pad_left(const char *arg)
2427 {
2428 frame_padleft = atoi(arg);
2429 if (frame_padleft < 0) {
2430 fprintf(stderr, "Incorrect left pad size\n");
2431 exit(1);
2432 }
2433 if ((frame_padleft % 2) != 0) {
2434 fprintf(stderr, "Left pad size must be a multiple of 2\n");
2435 exit(1);
2436 }
2437 }
2438
2439
2440 static void opt_frame_pad_right(const char *arg)
2441 {
2442 frame_padright = atoi(arg);
2443 if (frame_padright < 0) {
2444 fprintf(stderr, "Incorrect right pad size\n");
2445 exit(1);
2446 }
2447 if ((frame_padright % 2) != 0) {
2448 fprintf(stderr, "Right pad size must be a multiple of 2\n");
2449 exit(1);
2450 }
2451 }
2452
2453
2454 static void opt_frame_pix_fmt(const char *arg)
2455 {
2456 frame_pix_fmt = avcodec_get_pix_fmt(arg);
2457 }
2458
2459 static void opt_frame_aspect_ratio(const char *arg)
2460 {
2461 int x = 0, y = 0;
2462 double ar = 0;
2463 const char *p;
2464
2465 p = strchr(arg, ':');
2466 if (p) {
2467 x = strtol(arg, (char **)&arg, 10);
2468 if (arg == p)
2469 y = strtol(arg+1, (char **)&arg, 10);
2470 if (x > 0 && y > 0)
2471 ar = (double)x / (double)y;
2472 } else
2473 ar = strtod(arg, (char **)&arg);
2474
2475 if (!ar) {
2476 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2477 exit(1);
2478 }
2479 frame_aspect_ratio = ar;
2480 }
2481
2482 static void opt_gop_size(const char *arg)
2483 {
2484 gop_size = atoi(arg);
2485 }
2486
2487 static void opt_b_frames(const char *arg)
2488 {
2489 b_frames = atoi(arg);
2490 if (b_frames > FF_MAX_B_FRAMES) {
2491 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
2492 exit(1);
2493 } else if (b_frames < 1) {
2494 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
2495 exit(1);
2496 }
2497 }
2498
2499 static void opt_pre_me(const char *arg)
2500 {
2501 pre_me = atoi(arg);
2502 }
2503
2504 static void opt_qscale(const char *arg)
2505 {
2506 video_qscale = atof(arg);
2507 if (video_qscale < 0.01 ||
2508 video_qscale > 255) {
2509 fprintf(stderr, "qscale must be >= 0.01 and <= 255\n");
2510 exit(1);
2511 }
2512 }
2513
2514 static void opt_qsquish(const char *arg)
2515 {
2516 video_qsquish = atof(arg);
2517 if (video_qsquish < 0.0 ||
2518 video_qsquish > 99.0) {
2519 fprintf(stderr, "qsquish must be >= 0.0 and <= 99.0\n");
2520 exit(1);
2521 }
2522 }
2523
2524 static void opt_lmax(const char *arg)
2525 {
2526 video_lmax = atof(arg)*FF_QP2LAMBDA;
2527 }
2528
2529 static void opt_lmin(const char *arg)
2530 {
2531 video_lmin = atof(arg)*FF_QP2LAMBDA;
2532 }
2533
2534 static void opt_qmin(const char *arg)
2535 {
2536 video_qmin = atoi(arg);
2537 if (video_qmin < 1 ||
2538 video_qmin > 51) {
2539 fprintf(stderr, "qmin must be >= 1 and <= 51\n");
2540 exit(1);
2541 }
2542 }
2543
2544 static void opt_qmax(const char *arg)
2545 {
2546 video_qmax = atoi(arg);
2547 if (video_qmax < 1 ||
2548 video_qmax > 51) {
2549 fprintf(stderr, "qmax must be >= 1 and <= 51\n");
2550 exit(1);
2551 }
2552 }
2553
2554 static void opt_mb_lmin(const char *arg)
2555 {
2556 video_mb_lmin = atof(arg)*FF_QP2LAMBDA;
2557 if (video_mb_lmin < 1 ||
2558 video_mb_lmin > FF_LAMBDA_MAX) {
2559 fprintf(stderr, "mblmin must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2560 exit(1);
2561 }
2562 }
2563
2564 static void opt_mb_lmax(const char *arg)
2565 {
2566 video_mb_lmax = atof(arg)*FF_QP2LAMBDA;
2567 if (video_mb_lmax < 1 ||
2568 video_mb_lmax > FF_LAMBDA_MAX) {
2569 fprintf(stderr, "mblmax must be >= 1 and <= %d\n", FF_LAMBDA_MAX / FF_QP2LAMBDA);
2570 exit(1);
2571 }
2572 }
2573
2574 static void opt_qdiff(const char *arg)
2575 {
2576 video_qdiff = atoi(arg);
2577 if (video_qdiff < 0 ||
2578 video_qdiff > 31) {
2579 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
2580 exit(1);
2581 }
2582 }
2583
2584 static void opt_qblur(const char *arg)
2585 {
2586 video_qblur = atof(arg);
2587 }
2588
2589 static void opt_qcomp(const char *arg)
2590 {
2591 video_qcomp = atof(arg);
2592 }
2593
2594 static void opt_rc_initial_cplx(const char *arg)
2595 {
2596 video_rc_initial_cplx = atof(arg);
2597 }
2598 static void opt_b_qfactor(const char *arg)
2599 {
2600 video_b_qfactor = atof(arg);
2601 }
2602 static void opt_i_qfactor(const char *arg)
2603 {
2604 video_i_qfactor = atof(arg);
2605 }
2606 static void opt_b_qoffset(const char *arg)
2607 {
2608 video_b_qoffset = atof(arg);
2609 }
2610 static void opt_i_qoffset(const char *arg)
2611 {
2612 video_i_qoffset = atof(arg);
2613 }
2614
2615 static void opt_ibias(const char *arg)
2616 {
2617 video_intra_quant_bias = atoi(arg);
2618 }
2619 static void opt_pbias(const char *arg)
2620 {
2621 video_inter_quant_bias = atoi(arg);
2622 }
2623
2624 static void opt_packet_size(const char *arg)
2625 {
2626 packet_size= atoi(arg);
2627 }
2628
2629 static void opt_error_rate(const char *arg)
2630 {
2631 error_rate= atoi(arg);
2632 }
2633
2634 static void opt_strict(const char *arg)
2635 {
2636 strict= atoi(arg);
2637 }
2638
2639 static void opt_top_field_first(const char *arg)
2640 {
2641 top_field_first= atoi(arg);
2642 }
2643
2644 static void opt_sc_threshold(const char *arg)
2645 {
2646 sc_threshold= atoi(arg);
2647 }
2648
2649 static void opt_me_range(const char *arg)
2650 {
2651 me_range = atoi(arg);
2652 }
2653
2654 static void opt_thread_count(const char *arg)
2655 {
2656 thread_count= atoi(arg);
2657 #if !defined(HAVE_THREADS)
2658 if (verbose >= 0)
2659 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2660 #endif
2661 }
2662
2663 static void opt_audio_bitrate(const char *arg)
2664 {
2665 audio_bit_rate = atoi(arg) * 1000;
2666 }
2667
2668 static void opt_audio_rate(const char *arg)
2669 {
2670 audio_sample_rate = atoi(arg);
2671 }
2672
2673 static void opt_audio_channels(const char *arg)
2674 {
2675 audio_channels = atoi(arg);
2676 }
2677
2678 static void opt_video_device(const char *arg)
2679 {
2680 video_device = av_strdup(arg);
2681 }
2682
2683 static void opt_grab_device(const char *arg)
2684 {
2685 grab_device = av_strdup(arg);
2686 }
2687
2688 static void opt_video_channel(const char *arg)
2689 {
2690 video_channel = strtol(arg, NULL, 0);
2691 }
2692
2693 static void opt_video_standard(const char *arg)
2694 {
2695 video_standard = av_strdup(arg);
2696 }
2697
2698 static void opt_audio_device(const char *arg)
2699 {
2700 audio_device = av_strdup(arg);
2701 }
2702
2703 static void opt_codec(int *pstream_copy, int *pcodec_id,
2704 int codec_type, const char *arg)
2705 {
2706 AVCodec *p;
2707
2708 if (!strcmp(arg, "copy")) {
2709 *pstream_copy = 1;
2710 } else {
2711 p = first_avcodec;
2712 while (p) {
2713 if (!strcmp(p->name, arg) && p->type == codec_type)
2714 break;
2715 p = p->next;
2716 }
2717 if (p == NULL) {
2718 fprintf(stderr, "Unknown codec '%s'\n", arg);
2719 exit(1);
2720 } else {
2721 *pcodec_id = p->id;
2722 }
2723 }
2724 }
2725
2726 static void opt_audio_codec(const char *arg)
2727 {
2728 opt_codec(&audio_stream_copy, &audio_codec_id, CODEC_TYPE_AUDIO, arg);
2729 }
2730
2731 static void opt_audio_tag(const char *arg)
2732 {
2733 char *tail;
2734 audio_codec_tag= strtol(arg, &tail, 0);
2735
2736 if(!tail || *tail)
2737 audio_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2738 }
2739
2740 static void opt_video_tag(const char *arg)
2741 {
2742 char *tail;
2743 video_codec_tag= strtol(arg, &tail, 0);
2744
2745 if(!tail || *tail)
2746 video_codec_tag= arg[0] + (arg[1]<<8) + (arg[2]<<16) + (arg[3]<<24);
2747 }
2748
2749 static void add_frame_hooker(const char *arg)
2750 {
2751 int argc = 0;
2752 char *argv[64];
2753 int i;
2754 char *args = av_strdup(arg);
2755
2756 using_vhook = 1;
2757
2758 argv[0] = strtok(args, " ");
2759 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2760 }
2761
2762 i = frame_hook_add(argc, argv);
2763
2764 if (i != 0) {
2765 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2766 exit(1);
2767 }
2768 }
2769
2770 const char *motion_str[] = {
2771 "zero",
2772 "full",
2773 "log",
2774 "phods",
2775 "epzs",
2776 "x1",
2777 "hex",
2778 "umh",
2779 "iter",
2780 NULL,
2781 };
2782
2783 static void opt_motion_estimation(const char *arg)
2784 {
2785 const char **p;
2786 p = motion_str;
2787 for(;;) {
2788 if (!*p) {
2789 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2790 exit(1);
2791 }
2792 if (!strcmp(*p, arg))
2793 break;
2794 p++;
2795 }
2796 me_method = (p - motion_str) + 1;
2797 }
2798
2799 static void opt_video_codec(const char *arg)
2800 {
2801 opt_codec(&video_stream_copy, &video_codec_id, CODEC_TYPE_VIDEO, arg);
2802 }
2803
2804 static void opt_subtitle_codec(const char *arg)
2805 {
2806 opt_codec(&subtitle_stream_copy, &subtitle_codec_id, CODEC_TYPE_SUBTITLE, arg);
2807 }
2808
2809 static void opt_map(const char *arg)
2810 {
2811 AVStreamMap *m;
2812 const char *p;
2813
2814 p = arg;
2815 m = &stream_maps[nb_stream_maps++];
2816
2817 m->file_index = strtol(arg, (char **)&p, 0);
2818 if (*p)
2819 p++;
2820
2821 m->stream_index = strtol(p, (char **)&p, 0);
2822 if (*p) {
2823 p++;
2824 m->sync_file_index = strtol(p, (char **)&p, 0);
2825 if (*p)
2826 p++;
2827 m->sync_stream_index = strtol(p, (char **)&p, 0);
2828 } else {
2829 m->sync_file_index = m->file_index;
2830 m->sync_stream_index = m->stream_index;
2831 }
2832 }
2833
2834 static void opt_map_meta_data(const char *arg)
2835 {
2836 AVMetaDataMap *m;
2837 const char *p;
2838
2839 p = arg;
2840 m = &meta_data_maps[nb_meta_data_maps++];
2841
2842 m->out_file = strtol(arg, (char **)&p, 0);
2843 if (*p)
2844 p++;
2845
2846 m->in_file = strtol(p, (char **)&p, 0);
2847 }
2848
2849 static void opt_recording_time(const char *arg)
2850 {
2851 recording_time = parse_date(arg, 1);
2852 }
2853
2854 static void opt_start_time(const char *arg)
2855 {
2856 start_time = parse_date(arg, 1);
2857 }
2858
2859 static void opt_rec_timestamp(const char *arg)
2860 {
2861 rec_timestamp = parse_date(arg, 0) / 1000000;
2862 }
2863
2864 static void opt_input_ts_offset(const char *arg)
2865 {
2866 input_ts_offset = parse_date(arg, 1);
2867 }
2868
2869 static void opt_input_file(const char *filename)
2870 {
2871 AVFormatContext *ic;
2872 AVFormatParameters params, *ap = &params;
2873 int err, i, ret, rfps, rfps_base;
2874 int64_t timestamp;
2875
2876 if (!strcmp(filename, "-"))
2877 filename = "pipe:";
2878
2879 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2880 !strcmp( filename, "/dev/stdin" );
2881
2882 /* get default parameters from command line */
2883 memset(ap, 0, sizeof(*ap));
2884 ap->sample_rate = audio_sample_rate;
2885 ap->channels = audio_channels;
2886 ap->time_base.den = frame_rate;
2887 ap->time_base.num = frame_rate_base;
2888 ap->width = frame_width + frame_padleft + frame_padright;
2889 ap->height = frame_height + frame_padtop + frame_padbottom;
2890 ap->image_format = image_format;
2891 ap->pix_fmt = frame_pix_fmt;
2892 ap->device = grab_device;
2893 ap->channel = video_channel;
2894 ap->standard = video_standard;
2895 ap->video_codec_id = video_codec_id;
2896 ap->audio_codec_id = audio_codec_id;
2897 if(pgmyuv_compatibility_hack)
2898 ap->video_codec_id= CODEC_ID_PGMYUV;
2899
2900 /* open the input file with generic libav function */
2901 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2902 if (err < 0) {
2903 print_error(filename, err);
2904 exit(1);
2905 }
2906
2907 if(genpts)
2908 ic->flags|= AVFMT_FLAG_GENPTS;
2909
2910 /* If not enough info to get the stream parameters, we decode the
2911 first frames to get it. (used in mpeg case for example) */
2912 ret = av_find_stream_info(ic);
2913 if (ret < 0 && verbose >= 0) {
2914 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2915 exit(1);
2916 }
2917
2918 timestamp = start_time;
2919 /* add the stream start time */
2920 if (ic->start_time != AV_NOPTS_VALUE)
2921 timestamp += ic->start_time;
2922
2923 /* if seeking requested, we execute it */
2924 if (start_time != 0) {
2925 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2926 if (ret < 0) {
2927 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2928 filename, (double)timestamp / AV_TIME_BASE);
2929 }
2930 /* reset seek info */
2931 start_time = 0;
2932 }
2933
2934 /* update the current parameters so that they match the one of the input stream */
2935 for(i=0;i<ic->nb_streams;i++) {
2936 int j;
2937 AVCodecContext *enc = ic->streams[i]->codec;
2938 #if defined(HAVE_THREADS)
2939 if(thread_count>1)
2940 avcodec_thread_init(enc, thread_count);
2941 #endif
2942 enc->thread_count= thread_count;
2943 switch(enc->codec_type) {
2944 case CODEC_TYPE_AUDIO:
2945 for(j=0; j<opt_name_count; j++){
2946 AVOption *opt;
2947 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2948 if(d==d && (opt->flags&AV_OPT_FLAG_AUDIO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2949 av_set_double(enc, opt_names[j], d);
2950 }
2951 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2952 audio_channels = enc->channels;
2953 audio_sample_rate = enc->sample_rate;
2954 if(audio_disable)
2955 ic->streams[i]->discard= AVDISCARD_ALL;
2956 break;
2957 case CODEC_TYPE_VIDEO:
2958 for(j=0; j<opt_name_count; j++){
2959 AVOption *opt;
2960 double d= av_get_double(avctx_opts, opt_names[j], &opt);
2961 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_DECODING_PARAM))
2962 av_set_double(enc, opt_names[j], d);
2963 }
2964 frame_height = enc->height;
2965 frame_width = enc->width;
2966 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2967 frame_pix_fmt = enc->pix_fmt;
2968 rfps = ic->streams[i]->r_frame_rate.num;
2969 rfps_base = ic->streams[i]->r_frame_rate.den;
2970 enc->workaround_bugs = workaround_bugs;
2971 if(enc->lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
2972 if(me_threshold)
2973 enc->debug |= FF_DEBUG_MV;
2974
2975 if (enc->time_base.den != rfps || enc->time_base.num != rfps_base) {
2976
2977 if (verbose >= 0)
2978 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
2979 i, (float)enc->time_base.den / enc->time_base.num, enc->time_base.den, enc->time_base.num,
2980
2981 (float)rfps / rfps_base, rfps, rfps_base);
2982 }
2983 /* update the current frame rate to match the stream frame rate */
2984 frame_rate = rfps;
2985 frame_rate_base = rfps_base;
2986
2987 enc->rate_emu = rate_emu;
2988 if(video_disable)
2989 ic->streams[i]->discard= AVDISCARD_ALL;
2990 else if(video_discard)
2991 ic->streams[i]->discard= video_discard;
2992 break;
2993 case CODEC_TYPE_DATA:
2994 break;
2995 case CODEC_TYPE_SUBTITLE:
2996 break;
2997 case CODEC_TYPE_UNKNOWN:
2998 break;
2999 default:
3000 av_abort();
3001 }
3002 }
3003
3004 input_files[nb_input_files] = ic;
3005 input_files_ts_offset[nb_input_files] = input_ts_offset - (copy_ts ? 0 : timestamp);
3006 /* dump the file content */
3007 if (verbose >= 0)
3008 dump_format(ic, nb_input_files, filename, 0);
3009
3010 nb_input_files++;
3011 file_iformat = NULL;
3012 file_oformat = NULL;
3013 image_format = NULL;
3014
3015 grab_device = NULL;
3016 video_channel = 0;
3017
3018 rate_emu = 0;
3019 }
3020
3021 static void opt_grab(const char *arg)
3022 {
3023 file_iformat = av_find_input_format(arg);
3024 opt_input_file("");
3025 }
3026
3027 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
3028 {
3029 int has_video, has_audio, i, j;
3030 AVFormatContext *ic;
3031
3032 has_video = 0;
3033 has_audio = 0;
3034 for(j=0;j<nb_input_files;j++) {
3035 ic = input_files[j];
3036 for(i=0;i<ic->nb_streams;i++) {
3037 AVCodecContext *enc = ic->streams[i]->codec;
3038 switch(enc->codec_type) {
3039 case CODEC_TYPE_AUDIO:
3040 has_audio = 1;
3041 break;
3042 case CODEC_TYPE_VIDEO:
3043 has_video = 1;
3044 break;
3045 case CODEC_TYPE_DATA:
3046 case CODEC_TYPE_UNKNOWN:
3047 case CODEC_TYPE_SUBTITLE:
3048 break;
3049 default:
3050 av_abort();
3051 }
3052 }
3053 }
3054 *has_video_ptr = has_video;
3055 *has_audio_ptr = has_audio;
3056 }
3057
3058 static void new_video_stream(AVFormatContext *oc)
3059 {
3060 AVStream *st;
3061 AVCodecContext *video_enc;
3062 int codec_id;
3063
3064 st = av_new_stream(oc, oc->nb_streams);
3065 if (!st) {
3066 fprintf(stderr, "Could not alloc stream\n");
3067 exit(1);
3068 }
3069 #if defined(HAVE_THREADS)
3070 if(thread_count>1)
3071 avcodec_thread_init(st->codec, thread_count);
3072 #endif
3073
3074 video_enc = st->codec;
3075
3076 if(video_codec_tag)
3077 video_enc->codec_tag= video_codec_tag;
3078
3079 if( (video_global_header&1)
3080 || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
3081 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3082 avctx_opts->flags|= CODEC_FLAG_GLOBAL_HEADER;
3083 }
3084 if(video_global_header&2){
3085 video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
3086 avctx_opts->flags2|= CODEC_FLAG2_LOCAL_HEADER;
3087 }
3088
3089 if (video_stream_copy) {
3090 st->stream_copy = 1;
3091 video_enc->codec_type = CODEC_TYPE_VIDEO;
3092 } else {
3093 char *p;
3094 int i;
3095 AVCodec *codec;
3096
3097 codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_VIDEO);
3098 if (video_codec_id != CODEC_ID_NONE)
3099 codec_id = video_codec_id;
3100
3101 video_enc->codec_id = codec_id;
3102 codec = avcodec_find_encoder(codec_id);
3103
3104 for(i=0; i<opt_name_count; i++){
3105 AVOption *opt;
3106 double d= av_get_double(avctx_opts, opt_names[i], &opt);
3107 if(d==d && (opt->flags&AV_OPT_FLAG_VIDEO_PARAM) && (opt->flags&AV_OPT_FLAG_ENCODING_PARAM))
3108 av_set_double(video_enc, opt_names[i], d);
3109 }
3110
3111 video_enc->bit_rate = video_bit_rate;
3112 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
3113 video_enc->time_base.den = frame_rate;
3114 video_enc->time_base.num = frame_rate_base;
3115 if(codec && codec->supported_framerates){
3116 const AVRational *p= codec->supported_framerates;
3117 AVRational req= (AVRational){frame_rate, frame_rate_base};
3118 const AVRational *best=NULL;
3119 AVRational best_error= (AVRational){INT_MAX, 1};
3120 for(; p->den!=0; p++){
3121 AVRational error= av_sub_q(req, *p);
3122 if(error.num <0) error.num *= -1;
3123 if(av_cmp_q(error, best_error) < 0){
3124 best_error= error;
3125 best= p;
3126 }
3127 }
3128 video_enc->time_base.den= best->num;
3129 video_enc->time_base.num= best->den;
3130 }
3131
3132 video_enc->width = frame_width + frame_padright + frame_padleft;
3133 video_enc->height = frame_height + frame_padtop + frame_padbottom;
3134 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3135 video_enc->pix_fmt = frame_pix_fmt;
3136
3137 if(codec && codec->pix_fmts){
3138 const enum PixelFormat *p= codec->pix_fmts;
3139 for(; *p!=-1; p++){
3140 if(*p == video_enc->pix_fmt)
3141 break;
3142 }
3143 if(*p == -1)
3144 video_enc->pix_fmt = codec->pix_fmts[0];
3145 }
3146
3147 if (!intra_only)
3148 video_enc->gop_size = gop_size;
3149 else
3150 video_enc->gop_size = 0;
3151 if (video_qscale || same_quality) {
3152 video_enc->flags |= CODEC_FLAG_QSCALE;
3153 video_enc->global_quality=
3154 st->quality = FF_QP2LAMBDA * video_qscale;
3155 }
3156
3157 if(intra_matrix)
3158 video_enc->intra_matrix = intra_matrix;
3159 if(inter_matrix)
3160 video_enc->inter_matrix = inter_matrix;
3161
3162 video_enc->pre_me = pre_me;
3163
3164 if (b_frames) {
3165 video_enc->max_b_frames = b_frames;
3166 video_enc->b_quant_factor = 2.0;
3167 }
3168 video_enc->qmin = video_qmin;
3169 video_enc->qmax = video_qmax;
3170 video_enc->lmin = video_lmin;
3171 video_enc->lmax = video_lmax;
3172 video_enc->rc_qsquish = video_qsquish;
3173 video_enc->mb_lmin = video_mb_lmin;
3174 video_enc->mb_lmax = video_mb_lmax;
3175 video_enc->max_qdiff = video_qdiff;
3176 video_enc->qblur = video_qblur;
3177 video_enc->qcompress = video_qcomp;
3178 video_enc->rc_eq = video_rc_eq;
3179 video_enc->workaround_bugs = workaround_bugs;
3180 video_enc->thread_count = thread_count;
3181 p= video_rc_override_string;
3182 for(i=0; p; i++){
3183 int start, end, q;
3184 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3185 if(e!=3){
3186 fprintf(stderr, "error parsing rc_override\n");
3187 exit(1);
3188 }
3189 video_enc->rc_override=
3190 av_realloc(video_enc->rc_override,
3191 sizeof(RcOverride)*(i+1));
3192 video_enc->rc_override[i].start_frame= start;
3193 video_enc->rc_override[i].end_frame = end;
3194 if(q>0){
3195 video_enc->rc_override[i].qscale= q;
3196 video_enc->rc_override[i].quality_factor= 1.0;
3197 }
3198 else{
3199 video_enc->rc_override[i].qscale= 0;
3200 video_enc->rc_override[i].quality_factor= -q/100.0;
3201 }
3202 p= strchr(p, '/');
3203 if(p) p++;
3204 }
3205 video_enc->rc_override_count=i;
3206
3207 video_enc->rc_max_rate = video_rc_max_rate;
3208 video_enc->rc_min_rate = video_rc_min_rate;
3209 video_enc->rc_buffer_size = video_rc_buffer_size;
3210 video_enc->rc_initial_buffer_occupancy = video_rc_buffer_size*3/4;
3211 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
3212 video_enc->rc_initial_cplx= video_rc_initial_cplx;
3213 video_enc->i_quant_factor = video_i_qfactor;
3214 video_enc->b_quant_factor = video_b_qfactor;
3215 video_enc->i_quant_offset = video_i_qoffset;
3216 video_enc->b_quant_offset = video_b_qoffset;
3217 video_enc->intra_quant_bias = video_intra_quant_bias;
3218 video_enc->inter_quant_bias = video_inter_quant_bias;
3219 video_enc->me_threshold= me_threshold;
3220 video_enc->mb_threshold= mb_threshold;
3221 video_enc->intra_dc_precision= intra_dc_precision - 8;
3222 video_enc->strict_std_compliance = strict;
3223 video_enc->error_rate = error_rate;
3224 video_enc->scenechange_threshold= sc_threshold;
3225 video_enc->me_range = me_range;
3226 video_enc->me_penalty_compensation= me_penalty_compensation;
3227 video_enc->frame_skip_threshold= frame_skip_threshold;
3228 video_enc->frame_skip_factor= frame_skip_factor;
3229 video_enc->frame_skip_exp= frame_skip_exp;
3230
3231 if(packet_size){
3232 video_enc->rtp_mode= 1;
3233 video_enc->rtp_payload_size= packet_size;
3234 }
3235
3236 if (do_psnr)
3237 video_enc->flags|= CODEC_FLAG_PSNR;
3238
3239 video_enc->me_method = me_method;
3240
3241 /* two pass mode */
3242 if (do_pass) {
3243 if (do_pass == 1) {
3244 video_enc->flags |= CODEC_FLAG_PASS1;
3245 } else {
3246 video_enc->flags |= CODEC_FLAG_PASS2;
3247 }
3248 }
3249 }
3250
3251 /* reset some key parameters */
3252 video_disable = 0;
3253 video_codec_id = CODEC_ID_NONE;
3254 video_stream_copy = 0;
3255 }
3256
3257 static void new_audio_stream(AVFormatContext *oc)
3258 {
3259 AVStream *st;
3260 AVCodecContext *audio_enc;
3261 int codec_id, i;
3262
3263 st = av_new_stream(oc, oc->nb_streams);
3264 if (!st) {
3265 fprintf(stderr, "Could not alloc stream\n");
3266 exit(1);
3267 }
3268 #if defined(HAVE_THREADS)
3269 if(thread_count>1)
3270 avcodec_thread_init(st->codec, thread_count);
3271 #endif
3272
3273 audio_enc = st->codec;
3274 audio_enc