cygwin patch by (Felix Buenemann <atmosfear at users dot sourceforge dot net>)
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000, 2001, 2002 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19 #define HAVE_AV_CONFIG_H
20 #include "avformat.h"
21 #include "tick.h"
22
23 #ifndef CONFIG_WIN32
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <sys/ioctl.h>
27 #include <sys/time.h>
28 #include <termios.h>
29 #include <sys/resource.h>
30 #endif
31 #ifdef __BEOS__
32 /* for snooze() */
33 #include <OS.h>
34 #endif
35 #include <time.h>
36 #include <ctype.h>
37
38
39 #define MAXINT64 INT64_C(0x7fffffffffffffff)
40
41 typedef struct {
42 const char *name;
43 int flags;
44 #define HAS_ARG 0x0001
45 #define OPT_BOOL 0x0002
46 #define OPT_EXPERT 0x0004
47 #define OPT_STRING 0x0008
48 union {
49 void (*func_arg)();
50 int *int_arg;
51 char **str_arg;
52 } u;
53 const char *help;
54 const char *argname;
55 } OptionDef;
56
57 /* select an input stream for an output stream */
58 typedef struct AVStreamMap {
59 int file_index;
60 int stream_index;
61 } AVStreamMap;
62
63 extern const OptionDef options[];
64
65 void show_help(void);
66
67 #define MAX_FILES 20
68
69 static AVFormatContext *input_files[MAX_FILES];
70 static int nb_input_files = 0;
71
72 static AVFormatContext *output_files[MAX_FILES];
73 static int nb_output_files = 0;
74
75 static AVStreamMap stream_maps[MAX_FILES];
76 static int nb_stream_maps;
77
78 static AVInputFormat *file_iformat;
79 static AVOutputFormat *file_oformat;
80 static int frame_width = 160;
81 static int frame_height = 128;
82 static int frame_rate = 25 * FRAME_RATE_BASE;
83 static int video_bit_rate = 200*1000;
84 static int video_bit_rate_tolerance = 4000*1000;
85 static int video_qscale = 0;
86 static int video_qmin = 2;
87 static int video_qmax = 31;
88 static int video_qdiff = 3;
89 static float video_qblur = 0.5;
90 static float video_qcomp = 0.5;
91 static float video_rc_qsquish=1.0;
92 static float video_rc_qmod_amp=0;
93 static int video_rc_qmod_freq=0;
94 static char *video_rc_override_string=NULL;
95 static char *video_rc_eq="tex^qComp";
96 static int video_rc_buffer_size=0;
97 static float video_rc_buffer_aggressivity=1.0;
98 static int video_rc_max_rate=0;
99 static int video_rc_min_rate=0;
100 static float video_rc_initial_cplx=0;
101 static float video_b_qfactor = 1.25;
102 static float video_b_qoffset = 1.25;
103 static float video_i_qfactor = 0.8;
104 static float video_i_qoffset = 0.0;
105 static int me_method = 0;
106 static int video_disable = 0;
107 static int video_codec_id = CODEC_ID_NONE;
108 static int same_quality = 0;
109 static int b_frames = 0;
110 static int use_hq = 0;
111 static int use_4mv = 0;
112 static int do_deinterlace = 0;
113 static int workaround_bugs = 0;
114
115 static int gop_size = 12;
116 static int intra_only = 0;
117 static int audio_sample_rate = 44100;
118 static int audio_bit_rate = 64000;
119 static int audio_disable = 0;
120 static int audio_channels = 1;
121 static int audio_codec_id = CODEC_ID_NONE;
122
123 static INT64 recording_time = 0;
124 static int file_overwrite = 0;
125 static char *str_title = NULL;
126 static char *str_author = NULL;
127 static char *str_copyright = NULL;
128 static char *str_comment = NULL;
129 static int do_benchmark = 0;
130 static int do_hex_dump = 0;
131 static int do_play = 0;
132 static int do_psnr = 0;
133 static int do_vstats = 0;
134 static int mpeg_vcd = 0;
135
136 #ifndef CONFIG_AUDIO_OSS
137 const char *audio_device = "none";
138 #endif
139 #ifndef CONFIG_VIDEO4LINUX
140 const char *v4l_device = "none";
141 #endif
142
143 typedef struct AVOutputStream {
144 int file_index; /* file index */
145 int index; /* stream index in the output file */
146 int source_index; /* AVInputStream index */
147 AVStream *st; /* stream in the output file */
148 int encoding_needed; /* true if encoding needed for this stream */
149
150 /* video only */
151 AVPicture pict_tmp; /* temporary image for resizing */
152 int video_resample;
153 ImgReSampleContext *img_resample_ctx; /* for image resampling */
154
155 /* audio only */
156 int audio_resample;
157 ReSampleContext *resample; /* for audio resampling */
158 FifoBuffer fifo; /* for compression: one audio fifo per codec */
159 } AVOutputStream;
160
161 typedef struct AVInputStream {
162 int file_index;
163 int index;
164 AVStream *st;
165 int discard; /* true if stream data should be discarded */
166 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
167 Ticker pts_ticker; /* Ticker for PTS calculation */
168 int ticker_inited; /* to signal if the ticker was initialized */
169 INT64 pts; /* current pts */
170 int pts_increment; /* expected pts increment for next packet */
171 int frame_number; /* current frame */
172 INT64 sample_index; /* current sample */
173 } AVInputStream;
174
175 typedef struct AVInputFile {
176 int eof_reached; /* true if eof reached */
177 int ist_index; /* index of first stream in ist_table */
178 int buffer_size; /* current total buffer size */
179 int buffer_size_max; /* buffer size at which we consider we can stop
180 buffering */
181 int nb_streams; /* nb streams we are aware of */
182 } AVInputFile;
183
184 #ifndef CONFIG_WIN32
185
186 /* init terminal so that we can grab keys */
187 static struct termios oldtty;
188
189 static void term_exit(void)
190 {
191 tcsetattr (0, TCSANOW, &oldtty);
192 }
193
194 static void term_init(void)
195 {
196 struct termios tty;
197
198 tcgetattr (0, &tty);
199 oldtty = tty;
200
201 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
202 |INLCR|IGNCR|ICRNL|IXON);
203 tty.c_oflag |= OPOST;
204 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
205 tty.c_cflag &= ~(CSIZE|PARENB);
206 tty.c_cflag |= CS8;
207 tty.c_cc[VMIN] = 1;
208 tty.c_cc[VTIME] = 0;
209
210 tcsetattr (0, TCSANOW, &tty);
211
212 atexit(term_exit);
213 }
214
215 /* read a key without blocking */
216 static int read_key(void)
217 {
218 struct timeval tv;
219 int n;
220 unsigned char ch;
221 fd_set rfds;
222
223 FD_ZERO(&rfds);
224 FD_SET(0, &rfds);
225 tv.tv_sec = 0;
226 tv.tv_usec = 0;
227 n = select(1, &rfds, NULL, NULL, &tv);
228 if (n > 0) {
229 n = read(0, &ch, 1);
230 if (n == 1)
231 return ch;
232
233 return n;
234 }
235 return -1;
236 }
237
238 #else
239
240 /* no interactive support */
241 static void term_exit(void)
242 {
243 }
244
245 static void term_init(void)
246 {
247 }
248
249 static int read_key(void)
250 {
251 return 0;
252 }
253
254 #endif
255
256 int read_ffserver_streams(AVFormatContext *s, const char *filename)
257 {
258 int i, err;
259 AVFormatContext *ic;
260
261 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
262 if (err < 0)
263 return err;
264 /* copy stream format */
265 s->nb_streams = ic->nb_streams;
266 for(i=0;i<ic->nb_streams;i++) {
267 AVStream *st;
268 st = av_mallocz(sizeof(AVFormatContext));
269 memcpy(st, ic->streams[i], sizeof(AVStream));
270 s->streams[i] = st;
271 }
272
273 av_close_input_file(ic);
274 return 0;
275 }
276
277 #define MAX_AUDIO_PACKET_SIZE 16384
278
279 static void do_audio_out(AVFormatContext *s,
280 AVOutputStream *ost,
281 AVInputStream *ist,
282 unsigned char *buf, int size)
283 {
284 UINT8 *buftmp;
285 UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
286 UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
287 int size_out, frame_bytes, ret;
288 AVCodecContext *enc;
289
290 enc = &ost->st->codec;
291
292 if (ost->audio_resample) {
293 buftmp = audio_buf;
294 size_out = audio_resample(ost->resample,
295 (short *)buftmp, (short *)buf,
296 size / (ist->st->codec.channels * 2));
297 size_out = size_out * enc->channels * 2;
298 } else {
299 buftmp = buf;
300 size_out = size;
301 }
302
303 /* now encode as many frames as possible */
304 if (enc->frame_size > 1) {
305 /* output resampled raw samples */
306 fifo_write(&ost->fifo, buftmp, size_out,
307 &ost->fifo.wptr);
308
309 frame_bytes = enc->frame_size * 2 * enc->channels;
310
311 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
312 &ost->fifo.rptr) == 0) {
313 ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out),
314 (short *)audio_buf);
315 s->oformat->write_packet(s, ost->index, audio_out, ret, 0);
316 }
317 } else {
318 /* output a pcm frame */
319 /* XXX: change encoding codec API to avoid this ? */
320 switch(enc->codec->id) {
321 case CODEC_ID_PCM_S16LE:
322 case CODEC_ID_PCM_S16BE:
323 case CODEC_ID_PCM_U16LE:
324 case CODEC_ID_PCM_U16BE:
325 break;
326 default:
327 size_out = size_out >> 1;
328 break;
329 }
330 ret = avcodec_encode_audio(enc, audio_out, size_out,
331 (short *)buftmp);
332 s->oformat->write_packet(s, ost->index, audio_out, ret, 0);
333 }
334 }
335
336 /* write a picture to a raw mux */
337 static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
338 int pix_fmt, int w, int h)
339 {
340 UINT8 *buf, *src, *dest;
341 int size, j, i;
342
343 /* XXX: not efficient, should add test if we can take
344 directly the AVPicture */
345 switch(pix_fmt) {
346 case PIX_FMT_YUV420P:
347 size = avpicture_get_size(pix_fmt, w, h);
348 buf = av_malloc(size);
349 if (!buf)
350 return;
351 dest = buf;
352 for(i=0;i<3;i++) {
353 if (i == 1) {
354 w >>= 1;
355 h >>= 1;
356 }
357 src = picture->data[i];
358 for(j=0;j<h;j++) {
359 memcpy(dest, src, w);
360 dest += w;
361 src += picture->linesize[i];
362 }
363 }
364 break;
365 case PIX_FMT_YUV422P:
366 size = (w * h) * 2;
367 buf = av_malloc(size);
368 if (!buf)
369 return;
370 dest = buf;
371 for(i=0;i<3;i++) {
372 if (i == 1) {
373 w >>= 1;
374 }
375 src = picture->data[i];
376 for(j=0;j<h;j++) {
377 memcpy(dest, src, w);
378 dest += w;
379 src += picture->linesize[i];
380 }
381 }
382 break;
383 case PIX_FMT_YUV444P:
384 size = (w * h) * 3;
385 buf = av_malloc(size);
386 if (!buf)
387 return;
388 dest = buf;
389 for(i=0;i<3;i++) {
390 src = picture->data[i];
391 for(j=0;j<h;j++) {
392 memcpy(dest, src, w);
393 dest += w;
394 src += picture->linesize[i];
395 }
396 }
397 break;
398 case PIX_FMT_YUV422:
399 size = (w * h) * 2;
400 buf = av_malloc(size);
401 if (!buf)
402 return;
403 dest = buf;
404 src = picture->data[0];
405 for(j=0;j<h;j++) {
406 memcpy(dest, src, w * 2);
407 dest += w * 2;
408 src += picture->linesize[0];
409 }
410 break;
411 case PIX_FMT_RGB24:
412 case PIX_FMT_BGR24:
413 size = (w * h) * 3;
414 buf = av_malloc(size);
415 if (!buf)
416 return;
417 dest = buf;
418 src = picture->data[0];
419 for(j=0;j<h;j++) {
420 memcpy(dest, src, w * 3);
421 dest += w * 3;
422 src += picture->linesize[0];
423 }
424 break;
425 default:
426 return;
427 }
428 s->oformat->write_packet(s, index, buf, size, 0);
429 av_free(buf);
430 }
431
432
433 static void do_video_out(AVFormatContext *s,
434 AVOutputStream *ost,
435 AVInputStream *ist,
436 AVPicture *picture1,
437 int *frame_size)
438 {
439 int n1, n2, nb, i, ret, frame_number, dec_frame_rate;
440 AVPicture *picture, *picture2, *pict;
441 AVPicture picture_tmp1, picture_tmp2;
442 static UINT8 *video_buffer;
443 UINT8 *buf = NULL, *buf1 = NULL;
444 AVCodecContext *enc, *dec;
445
446 #define VIDEO_BUFFER_SIZE (1024*1024)
447
448 enc = &ost->st->codec;
449 dec = &ist->st->codec;
450
451 frame_number = ist->frame_number;
452 dec_frame_rate = ist->st->r_frame_rate;
453 // fprintf(stderr, "\n%d", dec_frame_rate);
454 /* first drop frame if needed */
455 n1 = ((INT64)frame_number * enc->frame_rate) / dec_frame_rate;
456 n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec_frame_rate;
457 nb = n2 - n1;
458 if (nb <= 0)
459 return;
460
461 if (!video_buffer)
462 video_buffer= av_malloc(VIDEO_BUFFER_SIZE);
463 if(!video_buffer) return;
464
465 /* deinterlace : must be done before any resize */
466 if (do_deinterlace) {
467 int size;
468
469 /* create temporary picture */
470 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
471 buf1 = av_malloc(size);
472 if (!buf1)
473 return;
474
475 picture2 = &picture_tmp2;
476 avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
477
478 if (avpicture_deinterlace(picture2, picture1,
479 dec->pix_fmt, dec->width, dec->height) < 0) {
480 /* if error, do not deinterlace */
481 av_free(buf1);
482 buf1 = NULL;
483 picture2 = picture1;
484 }
485 } else {
486 picture2 = picture1;
487 }
488
489 /* convert pixel format if needed */
490 if (enc->pix_fmt != dec->pix_fmt) {
491 int size;
492
493 /* create temporary picture */
494 size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
495 buf = av_malloc(size);
496 if (!buf)
497 return;
498 pict = &picture_tmp1;
499 avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
500
501 if (img_convert(pict, enc->pix_fmt,
502 picture2, dec->pix_fmt,
503 dec->width, dec->height) < 0) {
504 fprintf(stderr, "pixel format conversion not handled\n");
505 goto the_end;
506 }
507 } else {
508 pict = picture2;
509 }
510
511 /* XXX: resampling could be done before raw format convertion in
512 some cases to go faster */
513 /* XXX: only works for YUV420P */
514 if (ost->video_resample) {
515 picture = &ost->pict_tmp;
516 img_resample(ost->img_resample_ctx, picture, pict);
517 } else {
518 picture = pict;
519 }
520 nb=1;
521 /* duplicates frame if needed */
522 /* XXX: pb because no interleaving */
523 for(i=0;i<nb;i++) {
524 if (enc->codec_id != CODEC_ID_RAWVIDEO) {
525 /* handles sameq here. This is not correct because it may
526 not be a global option */
527 if (same_quality) {
528 enc->quality = dec->quality;
529 }
530
531 ret = avcodec_encode_video(enc,
532 video_buffer, VIDEO_BUFFER_SIZE,
533 picture);
534 //enc->frame_number = enc->real_pict_num;
535 s->oformat->write_packet(s, ost->index, video_buffer, ret, 0);
536 *frame_size = ret;
537 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
538 // enc->frame_number-1, enc->real_pict_num, ret,
539 // enc->pict_type);
540 } else {
541 write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
542 }
543 }
544 the_end:
545 av_free(buf);
546 av_free(buf1);
547 }
548
549 static void do_video_stats(AVOutputStream *ost,
550 AVInputStream *ist,
551 int frame_size)
552 {
553 static FILE *fvstats=NULL;
554 static INT64 total_size = 0;
555 char filename[40];
556 time_t today2;
557 struct tm *today;
558 AVCodecContext *enc;
559 int frame_number;
560 INT64 ti;
561 double ti1, bitrate, avg_bitrate;
562
563 if (!fvstats) {
564 today2 = time(NULL);
565 today = localtime(&today2);
566 sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
567 today->tm_min,
568 today->tm_sec);
569 fvstats = fopen(filename,"w");
570 if (!fvstats) {
571 perror("fopen");
572 exit(1);
573 }
574 }
575
576 ti = MAXINT64;
577 enc = &ost->st->codec;
578 total_size += frame_size;
579 if (enc->codec_type == CODEC_TYPE_VIDEO) {
580 frame_number = ist->frame_number;
581 fprintf(fvstats, "frame= %5d q= %2d ", frame_number, enc->quality);
582 if (do_psnr)
583 fprintf(fvstats, "PSNR= %6.2f ", enc->psnr_y);
584
585 fprintf(fvstats,"f_size= %6d ", frame_size);
586 /* compute min pts value */
587 if (!ist->discard && ist->pts < ti) {
588 ti = ist->pts;
589 }
590 ti1 = (double)ti / 1000000.0;
591 if (ti1 < 0.01)
592 ti1 = 0.01;
593
594 bitrate = (double)(frame_size * 8) * enc->frame_rate / FRAME_RATE_BASE / 1000.0;
595 avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
596 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
597 (double)total_size / 1024, ti1, bitrate, avg_bitrate);
598 fprintf(fvstats,"type= %s\n", enc->key_frame == 1 ? "I" : "P");
599 }
600
601
602
603 }
604
605 /*
606 * The following code is the main loop of the file converter
607 */
608 static int av_encode(AVFormatContext **output_files,
609 int nb_output_files,
610 AVFormatContext **input_files,
611 int nb_input_files,
612 AVStreamMap *stream_maps, int nb_stream_maps)
613 {
614 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
615 AVFormatContext *is, *os;
616 AVCodecContext *codec, *icodec;
617 AVOutputStream *ost, **ost_table = NULL;
618 AVInputStream *ist, **ist_table = NULL;
619 INT64 min_pts, start_time;
620 AVInputFile *file_table;
621 AVFormatContext *stream_no_data;
622 int key;
623
624 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
625 if (!file_table)
626 goto fail;
627
628 /* input stream init */
629 j = 0;
630 for(i=0;i<nb_input_files;i++) {
631 is = input_files[i];
632 file_table[i].ist_index = j;
633 file_table[i].nb_streams = is->nb_streams;
634 j += is->nb_streams;
635 }
636 nb_istreams = j;
637
638 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
639 if (!ist_table)
640 goto fail;
641
642 for(i=0;i<nb_istreams;i++) {
643 ist = av_mallocz(sizeof(AVInputStream));
644 if (!ist)
645 goto fail;
646 ist_table[i] = ist;
647 }
648 j = 0;
649 for(i=0;i<nb_input_files;i++) {
650 is = input_files[i];
651 for(k=0;k<is->nb_streams;k++) {
652 ist = ist_table[j++];
653 ist->st = is->streams[k];
654 ist->file_index = i;
655 ist->index = k;
656 ist->discard = 1; /* the stream is discarded by default
657 (changed later) */
658 }
659 }
660
661 /* output stream init */
662 nb_ostreams = 0;
663 for(i=0;i<nb_output_files;i++) {
664 os = output_files[i];
665 nb_ostreams += os->nb_streams;
666 if (mpeg_vcd)
667 os->flags |= AVF_FLAG_VCD;
668 }
669 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
670 fprintf(stderr, "Number of stream maps must match number of output streams\n");
671 exit(1);
672 }
673
674 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
675 if (!ost_table)
676 goto fail;
677 for(i=0;i<nb_ostreams;i++) {
678 ost = av_mallocz(sizeof(AVOutputStream));
679 if (!ost)
680 goto fail;
681 ost_table[i] = ost;
682 }
683
684 n = 0;
685 for(k=0;k<nb_output_files;k++) {
686 os = output_files[k];
687 for(i=0;i<os->nb_streams;i++) {
688 int found;
689 ost = ost_table[n++];
690 ost->file_index = k;
691 ost->index = i;
692 ost->st = os->streams[i];
693 if (nb_stream_maps > 0) {
694 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
695 stream_maps[n-1].stream_index;
696 } else {
697 /* get corresponding input stream index : we select the first one with the right type */
698 found = 0;
699 for(j=0;j<nb_istreams;j++) {
700 ist = ist_table[j];
701 if (ist->discard &&
702 ist->st->codec.codec_type == ost->st->codec.codec_type) {
703 ost->source_index = j;
704 found = 1;
705 }
706 }
707
708 if (!found) {
709 /* try again and reuse existing stream */
710 for(j=0;j<nb_istreams;j++) {
711 ist = ist_table[j];
712 if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
713 ost->source_index = j;
714 found = 1;
715 }
716 }
717 if (!found) {
718 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
719 ost->file_index, ost->index);
720 exit(1);
721 }
722 }
723 }
724 ist = ist_table[ost->source_index];
725 ist->discard = 0;
726 }
727 }
728
729 /* dump the stream mapping */
730 fprintf(stderr, "Stream mapping:\n");
731 for(i=0;i<nb_ostreams;i++) {
732 ost = ost_table[i];
733 fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
734 ist_table[ost->source_index]->file_index,
735 ist_table[ost->source_index]->index,
736 ost->file_index,
737 ost->index);
738 }
739
740 /* for each output stream, we compute the right encoding parameters */
741 for(i=0;i<nb_ostreams;i++) {
742 ost = ost_table[i];
743 ist = ist_table[ost->source_index];
744
745 codec = &ost->st->codec;
746 icodec = &ist->st->codec;
747
748 switch(codec->codec_type) {
749 case CODEC_TYPE_AUDIO:
750 /* check if same codec with same parameters. If so, no
751 reencoding is needed */
752 if (codec->codec_id == icodec->codec_id &&
753 codec->bit_rate == icodec->bit_rate &&
754 codec->sample_rate == icodec->sample_rate &&
755 codec->channels == icodec->channels) {
756 /* no reencoding */
757 /* use the same frame size */
758 codec->frame_size = icodec->frame_size;
759 //codec->frame_size = 8*icodec->sample_rate*icodec->frame_size/
760 // icodec->bit_rate;
761 //fprintf(stderr,"\nFrame size: %d", codec->frame_size);
762 } else {
763 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
764 goto fail;
765
766 if (codec->channels == icodec->channels &&
767 codec->sample_rate == icodec->sample_rate) {
768 ost->audio_resample = 0;
769 } else {
770 if (codec->channels != icodec->channels &&
771 icodec->codec_id == CODEC_ID_AC3) {
772 /* Special case for 5:1 AC3 input */
773 /* and mono or stereo output */
774 /* Request specific number of channels */
775 icodec->channels = codec->channels;
776 if (codec->sample_rate == icodec->sample_rate)
777 ost->audio_resample = 0;
778 else {
779 ost->audio_resample = 1;
780 ost->resample = audio_resample_init(codec->channels, icodec->channels,
781 codec->sample_rate,
782 icodec->sample_rate);
783 }
784 /* Request specific number of channels */
785 icodec->channels = codec->channels;
786 } else {
787 ost->audio_resample = 1;
788 ost->resample = audio_resample_init(codec->channels, icodec->channels,
789 codec->sample_rate,
790 icodec->sample_rate);
791 }
792 }
793 ist->decoding_needed = 1;
794 ost->encoding_needed = 1;
795 }
796 break;
797 case CODEC_TYPE_VIDEO:
798 /* check if same codec with same parameters. If so, no
799 reencoding is needed */
800 if (codec->codec_id == icodec->codec_id &&
801 codec->bit_rate == icodec->bit_rate &&
802 codec->frame_rate == icodec->frame_rate &&
803 codec->width == icodec->width &&
804 codec->height == icodec->height) {
805 /* no reencoding */
806 } else {
807 if (codec->width == icodec->width &&
808 codec->height == icodec->height) {
809 ost->video_resample = 0;
810 } else {
811 UINT8 *buf;
812 ost->video_resample = 1;
813 buf = av_malloc((codec->width * codec->height * 3) / 2);
814 if (!buf)
815 goto fail;
816 ost->pict_tmp.data[0] = buf;
817 ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
818 ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
819 ost->pict_tmp.linesize[0] = codec->width;
820 ost->pict_tmp.linesize[1] = codec->width / 2;
821 ost->pict_tmp.linesize[2] = codec->width / 2;
822
823 ost->img_resample_ctx = img_resample_init(
824 ost->st->codec.width, ost->st->codec.height,
825 ist->st->codec.width, ist->st->codec.height);
826 }
827 ost->encoding_needed = 1;
828 ist->decoding_needed = 1;
829 }
830 break;
831 default:
832 av_abort();
833 }
834 }
835
836 /* open each encoder */
837 for(i=0;i<nb_ostreams;i++) {
838 ost = ost_table[i];
839 if (ost->encoding_needed) {
840 AVCodec *codec;
841 codec = avcodec_find_encoder(ost->st->codec.codec_id);
842 if (!codec) {
843 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
844 ost->file_index, ost->index);
845 exit(1);
846 }
847 if (avcodec_open(&ost->st->codec, codec) < 0) {
848 fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
849 ost->file_index, ost->index);
850 exit(1);
851 }
852 }
853 }
854
855 /* open each decoder */
856 for(i=0;i<nb_istreams;i++) {
857 ist = ist_table[i];
858 if (ist->decoding_needed) {
859 AVCodec *codec;
860 codec = avcodec_find_decoder(ist->st->codec.codec_id);
861 if (!codec) {
862 fprintf(stderr, "Unsupported codec for input stream #%d.%d\n",
863 ist->file_index, ist->index);
864 exit(1);
865 }
866 if (avcodec_open(&ist->st->codec, codec) < 0) {
867 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
868 ist->file_index, ist->index);
869 exit(1);
870 }
871 //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
872 // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
873 }
874 }
875
876 /* init pts */
877 for(i=0;i<nb_istreams;i++) {
878 ist = ist_table[i];
879 ist->pts = 0;
880 ist->frame_number = 0;
881 }
882
883 /* compute buffer size max (should use a complete heuristic) */
884 for(i=0;i<nb_input_files;i++) {
885 file_table[i].buffer_size_max = 2048;
886 }
887
888 /* open files and write file headers */
889 for(i=0;i<nb_output_files;i++) {
890 os = output_files[i];
891 if (av_write_header(os) < 0) {
892 fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
893 ret = -EINVAL;
894 goto fail;
895 }
896 }
897
898 #ifndef CONFIG_WIN32
899 if (!do_play) {
900 fprintf(stderr, "Press [q] to stop encoding\n");
901 } else {
902 fprintf(stderr, "Press [q] to stop playing\n");
903 }
904 #endif
905 term_init();
906
907 start_time = av_gettime();
908 min_pts = 0;
909 stream_no_data = 0;
910 key = -1;
911
912 for(;;) {
913 int file_index, ist_index;
914 AVPacket pkt;
915 UINT8 *ptr;
916 int len;
917 UINT8 *data_buf;
918 int data_size, got_picture;
919 AVPicture picture;
920 short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
921
922 redo:
923 /* if 'q' pressed, exits */
924 if (key) {
925 /* read_key() returns 0 on EOF */
926 key = read_key();
927 if (key == 'q')
928 break;
929 }
930
931 /* select the input file with the smallest pts */
932 file_index = -1;
933 min_pts = MAXINT64;
934 for(i=0;i<nb_istreams;i++) {
935 ist = ist_table[i];
936 /* For some reason, the pts_increment code breaks q estimation?!? */
937 if (!ist->discard && !file_table[ist->file_index].eof_reached &&
938 ist->pts /* + ist->pts_increment */ < min_pts && input_files[ist->file_index] != stream_no_data) {
939 min_pts = ist->pts /* + ist->pts_increment */;
940 file_index = ist->file_index;
941 }
942 }
943 /* if none, if is finished */
944 if (file_index < 0) {
945 if (stream_no_data) {
946 #ifndef CONFIG_WIN32 /* no usleep in VisualC ? */
947 #ifdef __BEOS__
948 snooze(10 * 1000); /* mmu_man */ /* in microsec */
949 #elif defined(__CYGWIN__)
950 usleep(10 * 1000);
951 #else
952 struct timespec ts;
953
954 ts.tv_sec = 0;
955 ts.tv_nsec = 1000 * 1000 * 10;
956 nanosleep(&ts, 0);
957 #endif
958 #endif
959 stream_no_data = 0;
960 continue;
961 }
962 break;
963 }
964 /* finish if recording time exhausted */
965 if (recording_time > 0 && min_pts >= recording_time)
966 break;
967 /* read a packet from it and output it in the fifo */
968 is = input_files[file_index];
969 if (av_read_packet(is, &pkt) < 0) {
970 file_table[file_index].eof_reached = 1;
971 continue;
972 }
973 if (!pkt.size) {
974 stream_no_data = is;
975 } else {
976 stream_no_data = 0;
977 }
978 /* the following test is needed in case new streams appear
979 dynamically in stream : we ignore them */
980 if (pkt.stream_index >= file_table[file_index].nb_streams)
981 goto discard_packet;
982 ist_index = file_table[file_index].ist_index + pkt.stream_index;
983 ist = ist_table[ist_index];
984 if (ist->discard)
985 goto discard_packet;
986
987 if (pkt.flags & PKT_FLAG_DROPPED_FRAME)
988 ist->frame_number++;
989
990 if (do_hex_dump) {
991 printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
992 av_hex_dump(pkt.data, pkt.size);
993 }
994
995 // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
996
997 len = pkt.size;
998 ptr = pkt.data;
999 while (len > 0) {
1000
1001 /* decode the packet if needed */
1002 data_buf = NULL; /* fail safe */
1003 data_size = 0;
1004 if (ist->decoding_needed) {
1005 switch(ist->st->codec.codec_type) {
1006 case CODEC_TYPE_AUDIO:
1007 /* XXX: could avoid copy if PCM 16 bits with same
1008 endianness as CPU */
1009 ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
1010 ptr, len);
1011 if (ret < 0)
1012 goto fail_decode;
1013 /* Some bug in mpeg audio decoder gives */
1014 /* data_size < 0, it seems they are overflows */
1015 if (data_size <= 0) {
1016 /* no audio frame */
1017 ptr += ret;
1018 len -= ret;
1019 continue;
1020 }
1021 data_buf = (UINT8 *)samples;
1022 break;
1023 case CODEC_TYPE_VIDEO:
1024 if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
1025 int size;
1026 size = (ist->st->codec.width * ist->st->codec.height);
1027 avpicture_fill(&picture, ptr,
1028 ist->st->codec.pix_fmt,
1029 ist->st->codec.width,
1030 ist->st->codec.height);
1031 ret = len;
1032 } else {
1033 data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
1034 ret = avcodec_decode_video(&ist->st->codec,
1035 &picture, &got_picture, ptr, len);
1036 if (ret < 0) {
1037 fail_decode:
1038 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1039 ist->file_index, ist->index);
1040 av_free_packet(&pkt);
1041 goto redo;
1042 }
1043 if (!got_picture) {
1044 /* no picture yet */
1045 ptr += ret;
1046 len -= ret;
1047 continue;
1048 }
1049
1050 }
1051 break;
1052 default:
1053 goto fail_decode;
1054 }
1055 } else {
1056 data_buf = ptr;
1057 data_size = len;
1058 ret = len;
1059 }
1060 /* init tickers */
1061 if (!ist->ticker_inited) {
1062 switch (ist->st->codec.codec_type) {
1063 case CODEC_TYPE_AUDIO:
1064 ticker_init(&ist->pts_ticker,
1065 (INT64)ist->st->codec.sample_rate,
1066 (INT64)(1000000));
1067 ist->ticker_inited = 1;
1068 break;
1069 case CODEC_TYPE_VIDEO:
1070 ticker_init(&ist->pts_ticker,
1071 (INT64)ist->st->r_frame_rate,
1072 ((INT64)1000000 * FRAME_RATE_BASE));
1073 ist->ticker_inited = 1;
1074 break;
1075 default:
1076 av_abort();
1077 }
1078 }
1079 /* update pts */
1080 switch(ist->st->codec.codec_type) {
1081 case CODEC_TYPE_AUDIO:
1082 //ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate;
1083 ist->pts = ticker_abs(&ist->pts_ticker, ist->sample_index);
1084 ist->sample_index += data_size / (2 * ist->st->codec.channels);
1085 ist->pts_increment = (INT64) (data_size / (2 * ist->st->codec.channels)) * 1000000 / ist->st->codec.sample_rate;
1086 break;
1087 case CODEC_TYPE_VIDEO:
1088 ist->frame_number++;
1089 //ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) /
1090 // ist->st->codec.frame_rate;
1091 ist->pts = ticker_abs(&ist->pts_ticker, ist->frame_number);
1092 ist->pts_increment = ((INT64) 1000000 * FRAME_RATE_BASE) /
1093 ist->st->codec.frame_rate;
1094 break;
1095 default:
1096 av_abort();
1097 }
1098 ptr += ret;
1099 len -= ret;
1100
1101 /* transcode raw format, encode packets and output them */
1102
1103 for(i=0;i<nb_ostreams;i++) {
1104 int frame_size;
1105 ost = ost_table[i];
1106 if (ost->source_index == ist_index) {
1107 os = output_files[ost->file_index];
1108
1109 if (ost->encoding_needed) {
1110 switch(ost->st->codec.codec_type) {
1111 case CODEC_TYPE_AUDIO:
1112 do_audio_out(os, ost, ist, data_buf, data_size);
1113 break;
1114 case CODEC_TYPE_VIDEO:
1115 do_video_out(os, ost, ist, &picture, &frame_size);
1116 if (do_vstats)
1117 do_video_stats(ost, ist, frame_size);
1118 break;
1119 default:
1120 av_abort();
1121 }
1122 } else {
1123 /* no reencoding needed : output the packet directly */
1124 /* force the input stream PTS */
1125 os->oformat->write_packet(os, ost->index, data_buf, data_size, pkt.pts);
1126 }
1127 }
1128 }
1129 }
1130 discard_packet:
1131 av_free_packet(&pkt);
1132
1133 /* dump report by using the first video and audio streams */
1134 {
1135 char buf[1024];
1136 AVFormatContext *oc;
1137 INT64 total_size, ti;
1138 AVCodecContext *enc;
1139 int frame_number, vid;
1140 double bitrate, ti1;
1141 static INT64 last_time;
1142
1143 if ((min_pts - last_time) >= 500000) {
1144 last_time = min_pts;
1145
1146 oc = output_files[0];
1147
1148 total_size = url_ftell(&oc->pb);
1149
1150 buf[0] = '\0';
1151 ti = MAXINT64;
1152 vid = 0;
1153 for(i=0;i<nb_ostreams;i++) {
1154 ost = ost_table[i];
1155 enc = &ost->st->codec;
1156 ist = ist_table[ost->source_index];
1157 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1158 frame_number = ist->frame_number;
1159 sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1160 frame_number, enc->quality);
1161 if (do_psnr)
1162 sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
1163 vid = 1;
1164 }
1165 /* compute min pts value */
1166 if (!ist->discard && ist->pts < ti) {
1167 ti = ist->pts;
1168 }
1169 }
1170
1171 ti1 = (double)ti / 1000000.0;
1172 if (ti1 < 0.01)
1173 ti1 = 0.01;
1174 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1175
1176 sprintf(buf + strlen(buf),
1177 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1178 (double)total_size / 1024, ti1, bitrate);
1179
1180 fprintf(stderr, "%s \r", buf);
1181 fflush(stderr);
1182 }
1183 }
1184 }
1185 term_exit();
1186
1187 /* dump report by using the first video and audio streams */
1188 {
1189 char buf[1024];
1190 AVFormatContext *oc;
1191 INT64 total_size, ti;
1192 AVCodecContext *enc;
1193 int frame_number, vid;
1194 double bitrate, ti1;
1195
1196 oc = output_files[0];
1197
1198 total_size = url_ftell(&oc->pb);
1199
1200 buf[0] = '\0';
1201 ti = MAXINT64;
1202 vid = 0;
1203 for(i=0;i<nb_ostreams;i++) {
1204 ost = ost_table[i];
1205 enc = &ost->st->codec;
1206 ist = ist_table[ost->source_index];
1207 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1208 frame_number = ist->frame_number;
1209 sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1210 frame_number, enc->quality);
1211 if (do_psnr)
1212 sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
1213 vid = 1;
1214 }
1215 /* compute min pts value */
1216 if (!ist->discard && ist->pts < ti) {
1217 ti = ist->pts;
1218 }
1219 }
1220
1221 ti1 = ti / 1000000.0;
1222 if (ti1 < 0.01)
1223 ti1 = 0.01;
1224 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1225
1226 sprintf(buf + strlen(buf),
1227 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1228 (double)total_size / 1024, ti1, bitrate);
1229
1230 fprintf(stderr, "%s \n", buf);
1231 }
1232 /* close each encoder */
1233 for(i=0;i<nb_ostreams;i++) {
1234 ost = ost_table[i];
1235 if (ost->encoding_needed) {
1236 avcodec_close(&ost->st->codec);
1237 }
1238 }
1239
1240 /* close each decoder */
1241 for(i=0;i<nb_istreams;i++) {
1242 ist = ist_table[i];
1243 if (ist->decoding_needed) {
1244 avcodec_close(&ist->st->codec);
1245 }
1246 }
1247
1248
1249 /* write the trailer if needed and close file */
1250 for(i=0;i<nb_output_files;i++) {
1251 os = output_files[i];
1252 av_write_trailer(os);
1253 }
1254 /* finished ! */
1255
1256 ret = 0;
1257 fail1:
1258 av_free(file_table);
1259
1260 if (ist_table) {
1261 for(i=0;i<nb_istreams;i++) {
1262 ist = ist_table[i];
1263 av_free(ist);
1264 }
1265 av_free(ist_table);
1266 }
1267 if (ost_table) {
1268 for(i=0;i<nb_ostreams;i++) {
1269 ost = ost_table[i];
1270 if (ost) {
1271 fifo_free(&ost->fifo); /* works even if fifo is not
1272 initialized but set to zero */
1273 av_free(ost->pict_tmp.data[0]);
1274 if (ost->video_resample)
1275 img_resample_close(ost->img_resample_ctx);
1276 if (ost->audio_resample)
1277 audio_resample_close(ost->resample);
1278 av_free(ost);
1279 }
1280 }
1281 av_free(ost_table);
1282 }
1283 return ret;
1284 fail:
1285 ret = -ENOMEM;
1286 goto fail1;
1287 }
1288
1289 #if 0
1290 int file_read(const char *filename)
1291 {
1292 URLContext *h;
1293 unsigned char buffer[1024];
1294 int len, i;
1295
1296 if (url_open(&h, filename, O_RDONLY) < 0) {
1297 printf("could not open '%s'\n", filename);
1298 return -1;
1299 }
1300 for(;;) {
1301 len = url_read(h, buffer, sizeof(buffer));
1302 if (len <= 0)
1303 break;
1304 for(i=0;i<len;i++) putchar(buffer[i]);
1305 }
1306 url_close(h);
1307 return 0;
1308 }
1309 #endif
1310
1311 void show_licence(void)
1312 {
1313 printf(
1314 "ffmpeg version " FFMPEG_VERSION "\n"
1315 "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
1316 "This library is free software; you can redistribute it and/or\n"
1317 "modify it under the terms of the GNU Lesser General Public\n"
1318 "License as published by the Free Software Foundation; either\n"
1319 "version 2 of the License, or (at your option) any later version.\n"
1320 "\n"
1321 "This library is distributed in the hope that it will be useful,\n"
1322 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1323 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1324 "Lesser General Public License for more details.\n"
1325 "\n"
1326 "You should have received a copy of the GNU Lesser General Public\n"
1327 "License along with this library; if not, write to the Free Software\n"
1328 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
1329 );
1330 exit(1);
1331 }
1332
1333 void opt_format(const char *arg)
1334 {
1335 file_iformat = av_find_input_format(arg);
1336 file_oformat = guess_format(arg, NULL, NULL);
1337 if (!file_iformat && !file_oformat) {
1338 fprintf(stderr, "Unknown input or output format: %s\n", arg);
1339 exit(1);
1340 }
1341 }
1342
1343 void opt_video_bitrate(const char *arg)
1344 {
1345 video_bit_rate = atoi(arg) * 1000;
1346 }
1347
1348 void opt_video_bitrate_tolerance(const char *arg)
1349 {
1350 video_bit_rate_tolerance = atoi(arg) * 1000;
1351 }
1352
1353 void opt_video_bitrate_max(const char *arg)
1354 {
1355 video_rc_max_rate = atoi(arg) * 1000;
1356 }
1357
1358 void opt_video_bitrate_min(const char *arg)
1359 {
1360 video_rc_min_rate = atoi(arg) * 1000;
1361 }
1362
1363 void opt_video_rc_eq(char *arg)
1364 {
1365 video_rc_eq = arg;
1366 }
1367
1368
1369 void opt_workaround_bugs(const char *arg)
1370 {
1371 workaround_bugs = atoi(arg);
1372 }
1373
1374 void opt_frame_rate(const char *arg)
1375 {
1376 frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
1377 }
1378
1379 void opt_frame_size(const char *arg)
1380 {
1381 parse_image_size(&frame_width, &frame_height, arg);
1382 if (frame_width <= 0 || frame_height <= 0) {
1383 fprintf(stderr, "Incorrect frame size\n");
1384 exit(1);
1385 }
1386 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1387 fprintf(stderr, "Frame size must be a multiple of 2\n");
1388 exit(1);
1389 }
1390 }
1391
1392 void opt_gop_size(const char *arg)
1393 {
1394 gop_size = atoi(arg);
1395 }
1396
1397 void opt_b_frames(const char *arg)
1398 {
1399 b_frames = atoi(arg);
1400 if (b_frames > FF_MAX_B_FRAMES) {
1401 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1402 exit(1);
1403 } else if (b_frames < 1) {
1404 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1405 exit(1);
1406 }
1407 }
1408
1409 void opt_qscale(const char *arg)
1410 {
1411 video_qscale = atoi(arg);
1412 if (video_qscale < 0 ||
1413 video_qscale > 31) {
1414 fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1415 exit(1);
1416 }
1417 }
1418
1419 void opt_qmin(const char *arg)
1420 {
1421 video_qmin = atoi(arg);
1422 if (video_qmin < 0 ||
1423 video_qmin > 31) {
1424 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1425 exit(1);
1426 }
1427 }
1428
1429 void opt_qmax(const char *arg)
1430 {
1431 video_qmax = atoi(arg);
1432 if (video_qmax < 0 ||
1433 video_qmax > 31) {
1434 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1435 exit(1);
1436 }
1437 }
1438
1439 void opt_qdiff(const char *arg)
1440 {
1441 video_qdiff = atoi(arg);
1442 if (video_qdiff < 0 ||
1443 video_qdiff > 31) {
1444 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1445 exit(1);
1446 }
1447 }
1448
1449 void opt_qblur(const char *arg)
1450 {
1451 video_qblur = atof(arg);
1452 }
1453
1454 void opt_qcomp(const char *arg)
1455 {
1456 video_qcomp = atof(arg);
1457 }
1458
1459 void opt_audio_bitrate(const char *arg)
1460 {
1461 audio_bit_rate = atoi(arg) * 1000;
1462 }
1463
1464 void opt_audio_rate(const char *arg)
1465 {
1466 audio_sample_rate = atoi(arg);
1467 }
1468
1469 void opt_audio_channels(const char *arg)
1470 {
1471 audio_channels = atoi(arg);
1472 }
1473
1474 void opt_video_device(const char *arg)
1475 {
1476 v4l_device = strdup(arg);
1477 }
1478
1479 void opt_audio_device(const char *arg)
1480 {
1481 audio_device = strdup(arg);
1482 }
1483
1484 void opt_audio_codec(const char *arg)
1485 {
1486 AVCodec *p;
1487
1488 p = first_avcodec;
1489 while (p) {
1490 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1491 break;
1492 p = p->next;
1493 }
1494 if (p == NULL) {
1495 fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1496 exit(1);
1497 } else {
1498 audio_codec_id = p->id;
1499 }
1500 }
1501
1502 const char *motion_str[] = {
1503 "zero",
1504 "full",
1505 "log",
1506 "phods",
1507 "epzs",
1508 "x1",
1509 NULL,
1510 };
1511
1512 void opt_motion_estimation(const char *arg)
1513 {
1514 const char **p;
1515 p = motion_str;
1516 for(;;) {
1517 if (!*p) {
1518 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1519 exit(1);
1520 }
1521 if (!strcmp(*p, arg))
1522 break;
1523 p++;
1524 }
1525 me_method = (p - motion_str) + 1;
1526 }
1527
1528 void opt_video_codec(const char *arg)
1529 {
1530 AVCodec *p;
1531
1532 p = first_avcodec;
1533 while (p) {
1534 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1535 break;
1536 p = p->next;
1537 }
1538 if (p == NULL) {
1539 fprintf(stderr, "Unknown video codec '%s'\n", arg);
1540 exit(1);
1541 } else {
1542 video_codec_id = p->id;
1543 }
1544 }
1545
1546 void opt_map(const char *arg)
1547 {
1548 AVStreamMap *m;
1549 const char *p;
1550
1551 p = arg;
1552 m = &stream_maps[nb_stream_maps++];
1553
1554 m->file_index = strtol(arg, (char **)&p, 0);
1555 if (*p)
1556 p++;
1557
1558 m->stream_index = strtol(p, (char **)&p, 0);
1559 }
1560
1561 void opt_recording_time(const char *arg)
1562 {
1563 recording_time = parse_date(arg, 1);
1564 }
1565
1566 void print_error(const char *filename, int err)
1567 {
1568 switch(err) {
1569 case AVERROR_NUMEXPECTED:
1570 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
1571 "Use '%%d' to specify the image number:\n"
1572 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
1573 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
1574 filename);
1575 break;
1576 case AVERROR_INVALIDDATA:
1577 fprintf(stderr, "%s: Error while parsing header\n", filename);
1578 break;
1579 case AVERROR_NOFMT:
1580 fprintf(stderr, "%s: Unknown format\n", filename);
1581 break;
1582 default:
1583 fprintf(stderr, "%s: Error while opening file\n", filename);
1584 break;
1585 }
1586 }
1587
1588 void opt_input_file(const char *filename)
1589 {
1590 AVFormatContext *ic;
1591 AVFormatParameters params, *ap = &params;
1592 int err, i, ret, rfps;
1593
1594 /* get default parameters from command line */
1595 memset(ap, 0, sizeof(*ap));
1596 ap->sample_rate = audio_sample_rate;
1597 ap->channels = audio_channels;
1598 ap->frame_rate = frame_rate;
1599 ap->width = frame_width;
1600 ap->height = frame_height;
1601
1602 /* open the input file with generic libav function */
1603 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
1604 if (err < 0) {
1605 print_error(filename, err);
1606 exit(1);
1607 }
1608
1609 /* If not enough info to get the stream parameters, we decode the
1610 first frames to get it. (used in mpeg case for example) */
1611 ret = av_find_stream_info(ic);
1612 if (ret < 0) {
1613 fprintf(stderr, "%s: could not find codec parameters\n", filename);
1614 exit(1);
1615 }
1616
1617 /* update the current parameters so that they match the one of the input stream */
1618 for(i=0;i<ic->nb_streams;i++) {
1619 AVCodecContext *enc = &ic->streams[i]->codec;
1620 switch(enc->codec_type) {
1621 case CODEC_TYPE_AUDIO:
1622 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
1623 audio_channels = enc->channels;
1624 audio_sample_rate = enc->sample_rate;
1625 break;
1626 case CODEC_TYPE_VIDEO:
1627 frame_height = enc->height;
1628 frame_width = enc->width;
1629 rfps = ic->streams[i]->r_frame_rate;
1630 enc->workaround_bugs = workaround_bugs;
1631 if (enc->frame_rate != rfps) {
1632 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
1633 i, (float)enc->frame_rate / FRAME_RATE_BASE,
1634 (float)rfps / FRAME_RATE_BASE);
1635 }
1636 /* update the current frame rate to match the stream frame rate */
1637 frame_rate = rfps;
1638 break;
1639 default:
1640 av_abort();
1641 }
1642 }
1643
1644 input_files[nb_input_files] = ic;
1645 /* dump the file content */
1646 dump_format(ic, nb_input_files, filename, 0);
1647 nb_input_files++;
1648 file_iformat = NULL;
1649 file_oformat = NULL;
1650 }
1651
1652 void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
1653 {
1654 int has_video, has_audio, i, j;
1655 AVFormatContext *ic;
1656
1657 has_video = 0;
1658 has_audio = 0;
1659 for(j=0;j<nb_input_files;j++) {
1660 ic = input_files[j];
1661 for(i=0;i<ic->nb_streams;i++) {
1662 AVCodecContext *enc = &ic->streams[i]->codec;
1663 switch(enc->codec_type) {
1664 case CODEC_TYPE_AUDIO:
1665 has_audio = 1;
1666 break;
1667 case CODEC_TYPE_VIDEO:
1668 has_video = 1;
1669 break;
1670 default:
1671 av_abort();
1672 }
1673 }
1674 }
1675 *has_video_ptr = has_video;
1676 *has_audio_ptr = has_audio;
1677 }
1678
1679 void opt_output_file(const char *filename)
1680 {
1681 AVStream *st;
1682 AVFormatContext *oc;
1683 int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
1684 int codec_id;
1685
1686 if (!strcmp(filename, "-"))
1687 filename = "pipe:";
1688
1689 oc = av_mallocz(sizeof(AVFormatContext));
1690
1691 if (!file_oformat) {
1692 file_oformat = guess_format(NULL, filename, NULL);
1693 if (!file_oformat) {
1694 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
1695 filename);
1696 exit(1);
1697 }
1698 }
1699
1700 oc->oformat = file_oformat;
1701
1702 if (!strcmp(file_oformat->name, "ffm") &&
1703 strstart(filename, "http:", NULL)) {
1704 /* special case for files sent to ffserver: we get the stream
1705 parameters from ffserver */
1706 if (read_ffserver_streams(oc, filename) < 0) {
1707 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
1708 exit(1);
1709 }
1710 } else {
1711 use_video = file_oformat->video_codec != CODEC_ID_NONE;
1712 use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
1713
1714 /* disable if no corresponding type found and at least one
1715 input file */
1716 if (nb_input_files > 0) {
1717 check_audio_video_inputs(&input_has_video, &input_has_audio);
1718 if (!input_has_video)
1719 use_video = 0;
1720 if (!input_has_audio)
1721 use_audio = 0;
1722 }
1723
1724 /* manual disable */
1725 if (audio_disable) {
1726 use_audio = 0;
1727 }
1728 if (video_disable) {
1729 use_video = 0;
1730 }
1731
1732 nb_streams = 0;
1733 if (use_video) {
1734 AVCodecContext *video_enc;
1735
1736 st = av_mallocz(sizeof(AVStream));
1737 if (!st) {
1738 fprintf(stderr, "Could not alloc stream\n");
1739 exit(1);
1740 }
1741 video_enc = &st->codec;
1742
1743 codec_id = file_oformat->video_codec;
1744 if (video_codec_id != CODEC_ID_NONE)
1745 codec_id = video_codec_id;
1746
1747 video_enc->codec_id = codec_id;
1748 video_enc->codec_type = CODEC_TYPE_VIDEO;
1749
1750 video_enc->bit_rate = video_bit_rate;
1751 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
1752 video_enc->frame_rate = frame_rate;
1753
1754 video_enc->width = frame_width;
1755 video_enc->height = frame_height;
1756 if (!intra_only)
1757 video_enc->gop_size = gop_size;
1758 else
1759 video_enc->gop_size = 0;
1760 if (video_qscale || same_quality) {
1761 video_enc->flags |= CODEC_FLAG_QSCALE;
1762 video_enc->quality = video_qscale;
1763 }
1764
1765 if (use_hq) {
1766 video_enc->flags |= CODEC_FLAG_HQ;
1767 }
1768
1769 if (use_4mv) {
1770 video_enc->flags |= CODEC_FLAG_HQ;
1771 video_enc->flags |= CODEC_FLAG_4MV;
1772 }
1773
1774 if (b_frames) {
1775 if (codec_id != CODEC_ID_MPEG4) {
1776 fprintf(stderr, "\nB frames encoding only supported by MPEG-4.\n");
1777 exit(1);
1778 }
1779 video_enc->max_b_frames = b_frames;
1780 video_enc->b_frame_strategy = 0;
1781 video_enc->b_quant_factor = 2.0;
1782 }
1783
1784 video_enc->qmin = video_qmin;
1785 video_enc->qmax = video_qmax;
1786 video_enc->max_qdiff = video_qdiff;
1787 video_enc->qblur = video_qblur;
1788 video_enc->qcompress = video_qcomp;
1789 video_enc->rc_eq = video_rc_eq;
1790 video_enc->rc_max_rate = video_rc_max_rate;
1791 video_enc->rc_min_rate = video_rc_min_rate;
1792 video_enc->rc_buffer_size = video_rc_buffer_size;
1793 video_enc->i_quant_factor = video_i_qfactor;
1794 video_enc->b_quant_factor = video_b_qfactor;
1795 video_enc->i_quant_offset = video_i_qoffset;
1796 video_enc->b_quant_offset = video_b_qoffset;
1797
1798 if (do_psnr)
1799 video_enc->get_psnr = 1;
1800 else
1801 video_enc->get_psnr = 0;
1802
1803 video_enc->me_method = me_method;
1804
1805 /* XXX: need to find a way to set codec parameters */
1806 if (oc->oformat->flags & AVFMT_RGB24) {
1807 video_enc->pix_fmt = PIX_FMT_RGB24;
1808 }
1809
1810 oc->streams[nb_streams] = st;
1811 nb_streams++;
1812 }
1813
1814 if (use_audio) {
1815 AVCodecContext *audio_enc;
1816
1817 st = av_mallocz(sizeof(AVStream));
1818 if (!st) {
1819 fprintf(stderr, "Could not alloc stream\n");
1820 exit(1);
1821 }
1822 audio_enc = &st->codec;
1823 codec_id = file_oformat->audio_codec;
1824 if (audio_codec_id != CODEC_ID_NONE)
1825 codec_id = audio_codec_id;
1826 audio_enc->codec_id = codec_id;
1827 audio_enc->codec_type = CODEC_TYPE_AUDIO;
1828
1829 audio_enc->bit_rate = audio_bit_rate;
1830 audio_enc->sample_rate = audio_sample_rate;
1831 /* For audio codecs other than AC3 we limit */
1832 /* the number of coded channels to stereo */
1833 if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
1834 audio_enc->channels = 2;
1835 } else
1836 audio_enc->channels = audio_channels;
1837 oc->streams[nb_streams] = st;
1838 nb_streams++;
1839 }
1840
1841 oc->nb_streams = nb_streams;
1842
1843 if (!nb_streams) {
1844 fprintf(stderr, "No audio or video streams available\n");
1845 exit(1);
1846 }
1847
1848 if (str_title)
1849 pstrcpy(oc->title, sizeof(oc->title), str_title);
1850 if (str_author)
1851 pstrcpy(oc->author, sizeof(oc->author), str_author);
1852 if (str_copyright)
1853 pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
1854 if (str_comment)
1855 pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
1856 }
1857
1858 output_files[nb_output_files] = oc;
1859 /* dump the file content */
1860 dump_format(oc, nb_output_files, filename, 1);
1861 nb_output_files++;
1862
1863 strcpy(oc->filename, filename);
1864
1865 /* check filename in case of an image number is expected */
1866 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1867 if (filename_number_test(oc->filename) < 0) {
1868 print_error(oc->filename, AVERROR_NUMEXPECTED);
1869 exit(1);
1870 }
1871 }
1872
1873 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1874 /* test if it already exists to avoid loosing precious files */
1875 if (!file_overwrite &&
1876 (strchr(filename, ':') == NULL ||
1877 strstart(filename, "file:", NULL))) {
1878 if (url_exist(filename)) {
1879 int c;
1880
1881 printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
1882 fflush(stdout);
1883 c = getchar();
1884 if (toupper(c) != 'Y') {
1885 fprintf(stderr, "Not overwriting - exiting\n");
1886 exit(1);
1887 }
1888 }
1889 }
1890
1891 /* open the file */
1892 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
1893 fprintf(stderr, "Could not open '%s'\n", filename);
1894 exit(1);
1895 }
1896 }
1897
1898 /* reset some options */
1899 file_oformat = NULL;
1900 file_iformat = NULL;
1901 audio_disable = 0;
1902 video_disable = 0;
1903 audio_codec_id = CODEC_ID_NONE;
1904 video_codec_id = CODEC_ID_NONE;
1905 }
1906
1907 /* prepare dummy protocols for grab */
1908 void prepare_grab(void)
1909 {
1910 int has_video, has_audio, i, j;
1911 AVFormatContext *oc;
1912 AVFormatContext *ic;
1913 AVFormatParameters ap1, *ap = &ap1;
1914
1915 /* see if audio/video inputs are needed */
1916 has_video = 0;
1917 has_audio = 0;
1918 memset(ap, 0, sizeof(*ap));
1919 for(j=0;j<nb_output_files;j++) {
1920 oc = output_files[j];
1921 for(i=0;i<oc->nb_streams;i++) {
1922 AVCodecContext *enc = &oc->streams[i]->codec;
1923 switch(enc->codec_type) {
1924 case CODEC_TYPE_AUDIO:
1925 if (enc->sample_rate > ap->sample_rate)
1926 ap->sample_rate = enc->sample_rate;
1927 if (enc->channels > ap->channels)
1928 ap->channels = enc->channels;
1929 has_audio = 1;
1930 break;
1931 case CODEC_TYPE_VIDEO:
1932 if (enc->width > ap->width)
1933 ap->width = enc->width;
1934 if (enc->height > ap->height)
1935 ap->height = enc->height;
1936 if (enc->frame_rate > ap->frame_rate)
1937 ap->frame_rate = enc->frame_rate;
1938 has_video = 1;
1939 break;
1940 default:
1941 av_abort();
1942 }
1943 }
1944 }
1945
1946 if (has_video == 0 && has_audio == 0) {
1947 fprintf(stderr, "Output file must have at least one audio or video stream\n");
1948 exit(1);
1949 }
1950
1951 if (has_video) {
1952 AVInputFormat *fmt1;
1953 fmt1 = av_find_input_format("video_grab_device");
1954 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
1955 fprintf(stderr, "Could not find video grab device\n");
1956 exit(1);
1957 }
1958 /* by now video grab has one stream */
1959 ic->streams[0]->r_frame_rate = ap->frame_rate;
1960 input_files[nb_input_files] = ic;
1961 dump_format(ic, nb_input_files, v4l_device, 0);
1962 nb_input_files++;
1963 }
1964 if (has_audio) {
1965 AVInputFormat *fmt1;
1966 fmt1 = av_find_input_format("audio_device");
1967 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
1968 fprintf(stderr, "Could not find audio grab device\n");
1969 exit(1);
1970 }
1971 input_files[nb_input_files] = ic;
1972 dump_format(ic, nb_input_files, audio_device, 0);
1973 nb_input_files++;
1974 }
1975 }
1976
1977 /* open the necessary output devices for playing */
1978 void prepare_play(void)
1979 {
1980 file_iformat = NULL;
1981 file_oformat = guess_format("audio_device", NULL, NULL);
1982 if (!file_oformat) {
1983 fprintf(stderr, "Could not find audio device\n");
1984 exit(1);
1985 }
1986
1987 opt_output_file(audio_device);
1988 }
1989
1990
1991 #ifndef CONFIG_WIN32
1992 INT64 getutime(void)
1993 {
1994 struct rusage rusage;
1995
1996 getrusage(RUSAGE_SELF, &rusage);
1997 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
1998 }
1999 #else
2000 INT64 getutime(void)
2001 {
2002 return av_gettime();
2003 }
2004 #endif
2005
2006 extern int ffm_nopts;
2007
2008 void opt_bitexact(void)
2009 {
2010 avcodec_set_bit_exact();
2011 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2012 ffm_nopts = 1;
2013 }
2014
2015 void show_formats(void)
2016 {
2017 AVInputFormat *ifmt;
2018 AVOutputFormat *ofmt;
2019 URLProtocol *up;
2020 AVCodec *p;
2021 const char **pp;
2022
2023 printf("File formats:\n");
2024 printf(" Encoding:");
2025 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2026 printf(" %s", ofmt->name);
2027 }
2028 printf("\n");
2029 printf(" Decoding:");
2030 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2031 printf(" %s", ifmt->name);
2032 }
2033 printf("\n");
2034
2035 printf("Codecs:\n");
2036 printf(" Encoders:");
2037 for(p = first_avcodec; p != NULL; p = p->next) {
2038 if (p->encode)
2039 printf(" %s", p->name);
2040 }
2041 printf("\n");
2042
2043 printf(" Decoders:");
2044 for(p = first_avcodec; p != NULL; p = p->next) {
2045 if (p->decode)
2046 printf(" %s", p->name);
2047 }
2048 printf("\n");
2049
2050 printf("Supported file protocols:");
2051 for(up = first_protocol; up != NULL; up = up->next)
2052 printf(" %s:", up->name);
2053 printf("\n");
2054
2055 printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
2056 printf("Motion estimation methods:");
2057 pp = motion_str;
2058 while (*pp) {
2059 printf(" %s", *pp);
2060 if ((pp - motion_str + 1) == ME_ZERO)
2061 printf("(fastest)");
2062 else if ((pp - motion_str + 1) == ME_FULL)
2063 printf("(slowest)");
2064 else if ((pp - motion_str + 1) == ME_EPZS)
2065 printf("(default)");
2066 pp++;
2067 }
2068 printf("\n");
2069 exit(1);
2070 }
2071
2072 void show_help(void)
2073 {
2074 const char *prog;
2075 const OptionDef *po;
2076 int i, expert;
2077
2078 prog = do_play ? "ffplay" : "ffmpeg";
2079
2080 printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n",
2081 prog);
2082
2083 if (!do_play) {
2084 printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
2085 "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
2086 } else {
2087 printf("usage: ffplay [options] input_file...\n"
2088 "Simple audio player\n");
2089 }
2090
2091 printf("\n"
2092 "Main options are:\n");
2093 for(i=0;i<2;i++) {
2094 if (i == 1)
2095 printf("\nAdvanced options are:\n");
2096 for(po = options; po->name != NULL; po++) {
2097 char buf[64];
2098 expert = (po->flags & OPT_EXPERT) != 0;
2099 if (expert == i) {
2100 strcpy(buf, po->name);
2101 if (po->flags & HAS_ARG) {
2102 strcat(buf, " ");
2103 strcat(buf, po->argname);
2104 }
2105 printf("-%-17s %s\n", buf, po->help);
2106 }
2107 }
2108 }
2109
2110 exit(1);
2111 }
2112
2113 const OptionDef options[] = {
2114 { "L", 0, {(void*)show_licence}, "show license" },
2115 { "h", 0, {(void*)show_help}, "show help" },
2116 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2117 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2118 { "vcd", OPT_BOOL, {(void*)&mpeg_vcd}, "output Video CD MPEG-PS compliant file" },
2119 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
2120 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
2121 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
2122 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
2123 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
2124 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
2125 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
2126 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
2127 /* video options */
2128 { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
2129 { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
2130 { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2131 { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
2132 { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
2133 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2134 { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
2135 { "qmin", HAS_ARG | OPT_EXPERT, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
2136 { "qmax", HAS_ARG | OPT_EXPERT, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
2137 { "qdiff", HAS_ARG | OPT_EXPERT, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
2138 { "qblur", HAS_ARG | OPT_EXPERT, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
2139 { "qcomp", HAS_ARG | OPT_EXPERT, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
2140 { "rc_eq", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_eq}, "", "equation" },
2141 { "bt", HAS_ARG, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
2142 { "maxrate", HAS_ARG, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
2143 { "minrate", HAS_ARG, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
2144 { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video grab device", "device" },
2145 { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" },
2146 { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method",
2147 "method" },
2148 { "bf", HAS_ARG | OPT_EXPERT, {(void*)opt_b_frames}, "use 'frames' B frames (only MPEG-4)", "frames" },
2149 { "hq", OPT_BOOL | OPT_EXPERT, {(void*)&use_hq}, "activate high quality settings" },
2150 { "4mv", OPT_BOOL | OPT_EXPERT, {(void*)&use_4mv}, "use four motion vector by macroblock (only MPEG-4)" },
2151 { "bug", HAS_ARG | OPT_EXPERT, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
2152 { "sameq", OPT_BOOL, {(void*)&same_quality},
2153 "use same video quality as source (implies VBR)" },
2154 /* audio options */
2155 { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
2156 { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
2157 { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
2158 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2159 { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
2160 { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" },
2161 { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace},
2162 "deinterlace pictures" },
2163 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
2164 "add timings for benchmarking" },
2165 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
2166 "dump each input packet" },
2167 { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
2168 { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" },
2169 { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" },
2170 { NULL, },
2171 };
2172
2173 int main(int argc, char **argv)
2174 {
2175 int optindex, i;
2176 const char *opt, *arg;
2177 const OptionDef *po;
2178 INT64 ti;
2179
2180 av_register_all();
2181
2182 /* detect if invoked as player */
2183 i = strlen(argv[0]);
2184 if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
2185 do_play = 1;
2186
2187 if (argc <= 1)
2188 show_help();
2189
2190 /* parse options */
2191 optindex = 1;
2192 while (optindex < argc) {
2193 opt = argv[optindex++];
2194
2195 if (opt[0] == '-' && opt[1] != '\0') {
2196 po = options;
2197 while (po->name != NULL) {
2198 if (!strcmp(opt + 1, po->name))
2199 break;
2200 po++;
2201 }
2202 if (!po->name) {
2203 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
2204 exit(1);
2205 }
2206 arg = NULL;
2207 if (po->flags & HAS_ARG)
2208 arg = argv[optindex++];
2209 if (po->flags & OPT_STRING) {
2210 char *str;
2211 str = strdup(arg);
2212 *po->u.str_arg = str;
2213 } else if (po->flags & OPT_BOOL) {
2214 *po->u.int_arg = 1;
2215 } else {
2216 po->u.func_arg(arg);
2217 }
2218 } else {
2219 if (!do_play) {
2220 opt_output_file(opt);
2221 } else {
2222 opt_input_file(opt);
2223 }
2224 }
2225 }
2226
2227
2228 if (!do_play) {
2229 /* file converter / grab */
2230 if (nb_output_files <= 0) {
2231 fprintf(stderr, "Must supply at least one output file\n");
2232 exit(1);
2233 }
2234
2235 if (nb_input_files == 0) {
2236 prepare_grab();
2237 }
2238 } else {
2239 /* player */
2240 if (nb_input_files <= 0) {
2241 fprintf(stderr, "Must supply at least one input file\n");
2242 exit(1);
2243 }
2244 prepare_play();
2245 }
2246
2247 ti = getutime();
2248 av_encode(output_files, nb_output_files, input_files, nb_input_files,
2249 stream_maps, nb_stream_maps);
2250 ti = getutime() - ti;
2251 if (do_benchmark) {
2252 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2253 }
2254
2255 /* close files */
2256 for(i=0;i<nb_output_files;i++) {
2257 if (!(output_files[i]->oformat->flags & AVFMT_NOFILE))
2258 url_fclose(&output_files[i]->pb);
2259 }
2260 for(i=0;i<nb_input_files;i++)
2261 av_close_input_file(input_files[i]);
2262
2263 return 0;
2264 }