e2b24b17d45507b3573071a9fb47a5735ddaa58b
[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_topBand = 0;
83 static int frame_bottomBand = 0;
84 static int frame_leftBand = 0;
85 static int frame_rightBand = 0;
86 static int frame_rate = 25 * FRAME_RATE_BASE;
87 static int video_bit_rate = 200*1000;
88 static int video_bit_rate_tolerance = 4000*1000;
89 static int video_qscale = 0;
90 static int video_qmin = 2;
91 static int video_qmax = 31;
92 static int video_qdiff = 3;
93 static float video_qblur = 0.5;
94 static float video_qcomp = 0.5;
95 static float video_rc_qsquish=1.0;
96 static float video_rc_qmod_amp=0;
97 static int video_rc_qmod_freq=0;
98 static char *video_rc_override_string=NULL;
99 static char *video_rc_eq="tex^qComp";
100 static int video_rc_buffer_size=0;
101 static float video_rc_buffer_aggressivity=1.0;
102 static int video_rc_max_rate=0;
103 static int video_rc_min_rate=0;
104 static float video_rc_initial_cplx=0;
105 static float video_b_qfactor = 1.25;
106 static float video_b_qoffset = 1.25;
107 static float video_i_qfactor = -0.8;
108 static float video_i_qoffset = 0.0;
109 static int me_method = 0;
110 static int video_disable = 0;
111 static int video_codec_id = CODEC_ID_NONE;
112 static int same_quality = 0;
113 static int b_frames = 0;
114 static int use_hq = 0;
115 static int use_4mv = 0;
116 static int do_deinterlace = 0;
117 static int workaround_bugs = 0;
118 static int error_resilience = 0;
119 static int dct_algo = 0;
120 static int idct_algo = 0;
121 static int use_part = 0;
122 static int packet_size = 0;
123
124 static int gop_size = 12;
125 static int intra_only = 0;
126 static int audio_sample_rate = 44100;
127 static int audio_bit_rate = 64000;
128 static int audio_disable = 0;
129 static int audio_channels = 1;
130 static int audio_codec_id = CODEC_ID_NONE;
131
132 static INT64 recording_time = 0;
133 static int file_overwrite = 0;
134 static char *str_title = NULL;
135 static char *str_author = NULL;
136 static char *str_copyright = NULL;
137 static char *str_comment = NULL;
138 static int do_benchmark = 0;
139 static int do_hex_dump = 0;
140 static int do_play = 0;
141 static int do_psnr = 0;
142 static int do_vstats = 0;
143 static int mpeg_vcd = 0;
144
145 #ifndef CONFIG_AUDIO_OSS
146 const char *audio_device = "none";
147 #endif
148 #ifndef CONFIG_VIDEO4LINUX
149 const char *v4l_device = "none";
150 #endif
151
152 typedef struct AVOutputStream {
153 int file_index; /* file index */
154 int index; /* stream index in the output file */
155 int source_index; /* AVInputStream index */
156 AVStream *st; /* stream in the output file */
157 int encoding_needed; /* true if encoding needed for this stream */
158
159 /* video only */
160 AVPicture pict_tmp; /* temporary image for resizing */
161 int video_resample;
162 ImgReSampleContext *img_resample_ctx; /* for image resampling */
163
164 /* audio only */
165 int audio_resample;
166 ReSampleContext *resample; /* for audio resampling */
167 FifoBuffer fifo; /* for compression: one audio fifo per codec */
168 } AVOutputStream;
169
170 typedef struct AVInputStream {
171 int file_index;
172 int index;
173 AVStream *st;
174 int discard; /* true if stream data should be discarded */
175 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
176 Ticker pts_ticker; /* Ticker for PTS calculation */
177 int ticker_inited; /* to signal if the ticker was initialized */
178 INT64 pts; /* current pts */
179 int pts_increment; /* expected pts increment for next packet */
180 int frame_number; /* current frame */
181 INT64 sample_index; /* current sample */
182 } AVInputStream;
183
184 typedef struct AVInputFile {
185 int eof_reached; /* true if eof reached */
186 int ist_index; /* index of first stream in ist_table */
187 int buffer_size; /* current total buffer size */
188 int buffer_size_max; /* buffer size at which we consider we can stop
189 buffering */
190 int nb_streams; /* nb streams we are aware of */
191 } AVInputFile;
192
193 #ifndef CONFIG_WIN32
194
195 /* init terminal so that we can grab keys */
196 static struct termios oldtty;
197
198 static void term_exit(void)
199 {
200 tcsetattr (0, TCSANOW, &oldtty);
201 }
202
203 static void term_init(void)
204 {
205 struct termios tty;
206
207 tcgetattr (0, &tty);
208 oldtty = tty;
209
210 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
211 |INLCR|IGNCR|ICRNL|IXON);
212 tty.c_oflag |= OPOST;
213 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
214 tty.c_cflag &= ~(CSIZE|PARENB);
215 tty.c_cflag |= CS8;
216 tty.c_cc[VMIN] = 1;
217 tty.c_cc[VTIME] = 0;
218
219 tcsetattr (0, TCSANOW, &tty);
220
221 atexit(term_exit);
222 }
223
224 /* read a key without blocking */
225 static int read_key(void)
226 {
227 struct timeval tv;
228 int n;
229 unsigned char ch;
230 fd_set rfds;
231
232 FD_ZERO(&rfds);
233 FD_SET(0, &rfds);
234 tv.tv_sec = 0;
235 tv.tv_usec = 0;
236 n = select(1, &rfds, NULL, NULL, &tv);
237 if (n > 0) {
238 n = read(0, &ch, 1);
239 if (n == 1)
240 return ch;
241
242 return n;
243 }
244 return -1;
245 }
246
247 #else
248
249 /* no interactive support */
250 static void term_exit(void)
251 {
252 }
253
254 static void term_init(void)
255 {
256 }
257
258 static int read_key(void)
259 {
260 return 0;
261 }
262
263 #endif
264
265 int read_ffserver_streams(AVFormatContext *s, const char *filename)
266 {
267 int i, err;
268 AVFormatContext *ic;
269
270 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
271 if (err < 0)
272 return err;
273 /* copy stream format */
274 s->nb_streams = ic->nb_streams;
275 for(i=0;i<ic->nb_streams;i++) {
276 AVStream *st;
277 st = av_mallocz(sizeof(AVFormatContext));
278 memcpy(st, ic->streams[i], sizeof(AVStream));
279 s->streams[i] = st;
280 }
281
282 av_close_input_file(ic);
283 return 0;
284 }
285
286 #define MAX_AUDIO_PACKET_SIZE 16384
287
288 static void do_audio_out(AVFormatContext *s,
289 AVOutputStream *ost,
290 AVInputStream *ist,
291 unsigned char *buf, int size)
292 {
293 UINT8 *buftmp;
294 UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
295 UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
296 int size_out, frame_bytes, ret;
297 AVCodecContext *enc;
298
299 enc = &ost->st->codec;
300
301 if (ost->audio_resample) {
302 buftmp = audio_buf;
303 size_out = audio_resample(ost->resample,
304 (short *)buftmp, (short *)buf,
305 size / (ist->st->codec.channels * 2));
306 size_out = size_out * enc->channels * 2;
307 } else {
308 buftmp = buf;
309 size_out = size;
310 }
311
312 /* now encode as many frames as possible */
313 if (enc->frame_size > 1) {
314 /* output resampled raw samples */
315 fifo_write(&ost->fifo, buftmp, size_out,
316 &ost->fifo.wptr);
317
318 frame_bytes = enc->frame_size * 2 * enc->channels;
319
320 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
321 &ost->fifo.rptr) == 0) {
322 ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out),
323 (short *)audio_buf);
324 s->oformat->write_packet(s, ost->index, audio_out, ret, 0);
325 }
326 } else {
327 /* output a pcm frame */
328 /* XXX: change encoding codec API to avoid this ? */
329 switch(enc->codec->id) {
330 case CODEC_ID_PCM_S16LE:
331 case CODEC_ID_PCM_S16BE:
332 case CODEC_ID_PCM_U16LE:
333 case CODEC_ID_PCM_U16BE:
334 break;
335 default:
336 size_out = size_out >> 1;
337 break;
338 }
339 ret = avcodec_encode_audio(enc, audio_out, size_out,
340 (short *)buftmp);
341 s->oformat->write_packet(s, ost->index, audio_out, ret, 0);
342 }
343 }
344
345 /* write a picture to a raw mux */
346 static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
347 int pix_fmt, int w, int h)
348 {
349 UINT8 *buf, *src, *dest;
350 int size, j, i;
351
352 /* XXX: not efficient, should add test if we can take
353 directly the AVPicture */
354 switch(pix_fmt) {
355 case PIX_FMT_YUV420P:
356 size = avpicture_get_size(pix_fmt, w, h);
357 buf = av_malloc(size);
358 if (!buf)
359 return;
360 dest = buf;
361 for(i=0;i<3;i++) {
362 if (i == 1) {
363 w >>= 1;
364 h >>= 1;
365 }
366 src = picture->data[i];
367 for(j=0;j<h;j++) {
368 memcpy(dest, src, w);
369 dest += w;
370 src += picture->linesize[i];
371 }
372 }
373 break;
374 case PIX_FMT_YUV422P:
375 size = (w * h) * 2;
376 buf = av_malloc(size);
377 if (!buf)
378 return;
379 dest = buf;
380 for(i=0;i<3;i++) {
381 if (i == 1) {
382 w >>= 1;
383 }
384 src = picture->data[i];
385 for(j=0;j<h;j++) {
386 memcpy(dest, src, w);
387 dest += w;
388 src += picture->linesize[i];
389 }
390 }
391 break;
392 case PIX_FMT_YUV444P:
393 size = (w * h) * 3;
394 buf = av_malloc(size);
395 if (!buf)
396 return;
397 dest = buf;
398 for(i=0;i<3;i++) {
399 src = picture->data[i];
400 for(j=0;j<h;j++) {
401 memcpy(dest, src, w);
402 dest += w;
403 src += picture->linesize[i];
404 }
405 }
406 break;
407 case PIX_FMT_YUV422:
408 size = (w * h) * 2;
409 buf = av_malloc(size);
410 if (!buf)
411 return;
412 dest = buf;
413 src = picture->data[0];
414 for(j=0;j<h;j++) {
415 memcpy(dest, src, w * 2);
416 dest += w * 2;
417 src += picture->linesize[0];
418 }
419 break;
420 case PIX_FMT_RGB24:
421 case PIX_FMT_BGR24:
422 size = (w * h) * 3;
423 buf = av_malloc(size);
424 if (!buf)
425 return;
426 dest = buf;
427 src = picture->data[0];
428 for(j=0;j<h;j++) {
429 memcpy(dest, src, w * 3);
430 dest += w * 3;
431 src += picture->linesize[0];
432 }
433 break;
434 default:
435 return;
436 }
437 s->oformat->write_packet(s, index, buf, size, 0);
438 av_free(buf);
439 }
440
441
442 static void do_video_out(AVFormatContext *s,
443 AVOutputStream *ost,
444 AVInputStream *ist,
445 AVPicture *picture1,
446 int *frame_size)
447 {
448 int n1, n2, nb, i, ret, frame_number, dec_frame_rate;
449 AVPicture *picture, *picture2, *pict;
450 AVPicture picture_tmp1, picture_tmp2;
451 static UINT8 *video_buffer;
452 UINT8 *buf = NULL, *buf1 = NULL;
453 AVCodecContext *enc, *dec;
454
455 #define VIDEO_BUFFER_SIZE (1024*1024)
456
457 enc = &ost->st->codec;
458 dec = &ist->st->codec;
459
460 frame_number = ist->frame_number;
461 dec_frame_rate = ist->st->r_frame_rate;
462 // fprintf(stderr, "\n%d", dec_frame_rate);
463 /* first drop frame if needed */
464 n1 = ((INT64)frame_number * enc->frame_rate) / dec_frame_rate;
465 n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec_frame_rate;
466 nb = n2 - n1;
467 if (nb <= 0)
468 return;
469
470 if (!video_buffer)
471 video_buffer= av_malloc(VIDEO_BUFFER_SIZE);
472 if(!video_buffer) return;
473
474 /* deinterlace : must be done before any resize */
475 if (do_deinterlace) {
476 int size;
477
478 /* create temporary picture */
479 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
480 buf1 = av_malloc(size);
481 if (!buf1)
482 return;
483
484 picture2 = &picture_tmp2;
485 avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height);
486
487 if (avpicture_deinterlace(picture2, picture1,
488 dec->pix_fmt, dec->width, dec->height) < 0) {
489 /* if error, do not deinterlace */
490 av_free(buf1);
491 buf1 = NULL;
492 picture2 = picture1;
493 }
494 } else {
495 picture2 = picture1;
496 }
497
498 /* convert pixel format if needed */
499 if (enc->pix_fmt != dec->pix_fmt) {
500 int size;
501
502 /* create temporary picture */
503 size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
504 buf = av_malloc(size);
505 if (!buf)
506 return;
507 pict = &picture_tmp1;
508 avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height);
509
510 if (img_convert(pict, enc->pix_fmt,
511 picture2, dec->pix_fmt,
512 dec->width, dec->height) < 0) {
513 fprintf(stderr, "pixel format conversion not handled\n");
514 goto the_end;
515 }
516 } else {
517 pict = picture2;
518 }
519
520 /* XXX: resampling could be done before raw format convertion in
521 some cases to go faster */
522 /* XXX: only works for YUV420P */
523 if (ost->video_resample) {
524 picture = &ost->pict_tmp;
525 img_resample(ost->img_resample_ctx, picture, pict);
526 } else {
527 picture = pict;
528 }
529 nb=1;
530 /* duplicates frame if needed */
531 /* XXX: pb because no interleaving */
532 for(i=0;i<nb;i++) {
533 if (enc->codec_id != CODEC_ID_RAWVIDEO) {
534 /* handles sameq here. This is not correct because it may
535 not be a global option */
536 if (same_quality) {
537 enc->quality = dec->quality;
538 }
539
540 ret = avcodec_encode_video(enc,
541 video_buffer, VIDEO_BUFFER_SIZE,
542 picture);
543 //enc->frame_number = enc->real_pict_num;
544 s->oformat->write_packet(s, ost->index, video_buffer, ret, 0);
545 *frame_size = ret;
546 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
547 // enc->frame_number-1, enc->real_pict_num, ret,
548 // enc->pict_type);
549 } else {
550 write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
551 }
552 }
553 the_end:
554 av_free(buf);
555 av_free(buf1);
556 }
557
558 static void do_video_stats(AVOutputStream *ost,
559 AVInputStream *ist,
560 int frame_size)
561 {
562 static FILE *fvstats=NULL;
563 static INT64 total_size = 0;
564 char filename[40];
565 time_t today2;
566 struct tm *today;
567 AVCodecContext *enc;
568 int frame_number;
569 INT64 ti;
570 double ti1, bitrate, avg_bitrate;
571
572 if (!fvstats) {
573 today2 = time(NULL);
574 today = localtime(&today2);
575 sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
576 today->tm_min,
577 today->tm_sec);
578 fvstats = fopen(filename,"w");
579 if (!fvstats) {
580 perror("fopen");
581 exit(1);
582 }
583 }
584
585 ti = MAXINT64;
586 enc = &ost->st->codec;
587 total_size += frame_size;
588 if (enc->codec_type == CODEC_TYPE_VIDEO) {
589 frame_number = ist->frame_number;
590 fprintf(fvstats, "frame= %5d q= %2d ", frame_number, enc->quality);
591 if (do_psnr)
592 fprintf(fvstats, "PSNR= %6.2f ", enc->psnr_y);
593
594 fprintf(fvstats,"f_size= %6d ", frame_size);
595 /* compute min pts value */
596 if (!ist->discard && ist->pts < ti) {
597 ti = ist->pts;
598 }
599 ti1 = (double)ti / 1000000.0;
600 if (ti1 < 0.01)
601 ti1 = 0.01;
602
603 bitrate = (double)(frame_size * 8) * enc->frame_rate / FRAME_RATE_BASE / 1000.0;
604 avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
605 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
606 (double)total_size / 1024, ti1, bitrate, avg_bitrate);
607 fprintf(fvstats,"type= %s\n", enc->key_frame == 1 ? "I" : "P");
608 }
609
610
611
612 }
613
614 /*
615 * The following code is the main loop of the file converter
616 */
617 static int av_encode(AVFormatContext **output_files,
618 int nb_output_files,
619 AVFormatContext **input_files,
620 int nb_input_files,
621 AVStreamMap *stream_maps, int nb_stream_maps)
622 {
623 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
624 AVFormatContext *is, *os;
625 AVCodecContext *codec, *icodec;
626 AVOutputStream *ost, **ost_table = NULL;
627 AVInputStream *ist, **ist_table = NULL;
628 INT64 min_pts, start_time;
629 AVInputFile *file_table;
630 AVFormatContext *stream_no_data;
631 int key;
632
633 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
634 if (!file_table)
635 goto fail;
636
637 /* input stream init */
638 j = 0;
639 for(i=0;i<nb_input_files;i++) {
640 is = input_files[i];
641 file_table[i].ist_index = j;
642 file_table[i].nb_streams = is->nb_streams;
643 j += is->nb_streams;
644 }
645 nb_istreams = j;
646
647 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
648 if (!ist_table)
649 goto fail;
650
651 for(i=0;i<nb_istreams;i++) {
652 ist = av_mallocz(sizeof(AVInputStream));
653 if (!ist)
654 goto fail;
655 ist_table[i] = ist;
656 }
657 j = 0;
658 for(i=0;i<nb_input_files;i++) {
659 is = input_files[i];
660 for(k=0;k<is->nb_streams;k++) {
661 ist = ist_table[j++];
662 ist->st = is->streams[k];
663 ist->file_index = i;
664 ist->index = k;
665 ist->discard = 1; /* the stream is discarded by default
666 (changed later) */
667 }
668 }
669
670 /* output stream init */
671 nb_ostreams = 0;
672 for(i=0;i<nb_output_files;i++) {
673 os = output_files[i];
674 nb_ostreams += os->nb_streams;
675 if (mpeg_vcd)
676 os->flags |= AVF_FLAG_VCD;
677 }
678 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
679 fprintf(stderr, "Number of stream maps must match number of output streams\n");
680 exit(1);
681 }
682
683 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
684 if (!ost_table)
685 goto fail;
686 for(i=0;i<nb_ostreams;i++) {
687 ost = av_mallocz(sizeof(AVOutputStream));
688 if (!ost)
689 goto fail;
690 ost_table[i] = ost;
691 }
692
693 n = 0;
694 for(k=0;k<nb_output_files;k++) {
695 os = output_files[k];
696 for(i=0;i<os->nb_streams;i++) {
697 int found;
698 ost = ost_table[n++];
699 ost->file_index = k;
700 ost->index = i;
701 ost->st = os->streams[i];
702 if (nb_stream_maps > 0) {
703 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
704 stream_maps[n-1].stream_index;
705 } else {
706 /* get corresponding input stream index : we select the first one with the right type */
707 found = 0;
708 for(j=0;j<nb_istreams;j++) {
709 ist = ist_table[j];
710 if (ist->discard &&
711 ist->st->codec.codec_type == ost->st->codec.codec_type) {
712 ost->source_index = j;
713 found = 1;
714 }
715 }
716
717 if (!found) {
718 /* try again and reuse existing stream */
719 for(j=0;j<nb_istreams;j++) {
720 ist = ist_table[j];
721 if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
722 ost->source_index = j;
723 found = 1;
724 }
725 }
726 if (!found) {
727 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
728 ost->file_index, ost->index);
729 exit(1);
730 }
731 }
732 }
733 ist = ist_table[ost->source_index];
734 ist->discard = 0;
735 }
736 }
737
738 /* dump the stream mapping */
739 fprintf(stderr, "Stream mapping:\n");
740 for(i=0;i<nb_ostreams;i++) {
741 ost = ost_table[i];
742 fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
743 ist_table[ost->source_index]->file_index,
744 ist_table[ost->source_index]->index,
745 ost->file_index,
746 ost->index);
747 }
748
749 /* for each output stream, we compute the right encoding parameters */
750 for(i=0;i<nb_ostreams;i++) {
751 ost = ost_table[i];
752 ist = ist_table[ost->source_index];
753
754 codec = &ost->st->codec;
755 icodec = &ist->st->codec;
756
757 switch(codec->codec_type) {
758 case CODEC_TYPE_AUDIO:
759 /* check if same codec with same parameters. If so, no
760 reencoding is needed */
761 if (codec->codec_id == icodec->codec_id &&
762 codec->bit_rate == icodec->bit_rate &&
763 codec->sample_rate == icodec->sample_rate &&
764 codec->channels == icodec->channels) {
765 /* no reencoding */
766 /* use the same frame size */
767 codec->frame_size = icodec->frame_size;
768 //codec->frame_size = 8*icodec->sample_rate*icodec->frame_size/
769 // icodec->bit_rate;
770 //fprintf(stderr,"\nFrame size: %d", codec->frame_size);
771 } else {
772 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
773 goto fail;
774
775 if (codec->channels == icodec->channels &&
776 codec->sample_rate == icodec->sample_rate) {
777 ost->audio_resample = 0;
778 } else {
779 if (codec->channels != icodec->channels &&
780 icodec->codec_id == CODEC_ID_AC3) {
781 /* Special case for 5:1 AC3 input */
782 /* and mono or stereo output */
783 /* Request specific number of channels */
784 icodec->channels = codec->channels;
785 if (codec->sample_rate == icodec->sample_rate)
786 ost->audio_resample = 0;
787 else {
788 ost->audio_resample = 1;
789 ost->resample = audio_resample_init(codec->channels, icodec->channels,
790 codec->sample_rate,
791 icodec->sample_rate);
792 }
793 /* Request specific number of channels */
794 icodec->channels = codec->channels;
795 } else {
796 ost->audio_resample = 1;
797 ost->resample = audio_resample_init(codec->channels, icodec->channels,
798 codec->sample_rate,
799 icodec->sample_rate);
800 }
801 }
802 ist->decoding_needed = 1;
803 ost->encoding_needed = 1;
804 }
805 break;
806 case CODEC_TYPE_VIDEO:
807 /* check if same codec with same parameters. If so, no
808 reencoding is needed */
809 if (codec->codec_id == icodec->codec_id &&
810 codec->bit_rate == icodec->bit_rate &&
811 codec->frame_rate == icodec->frame_rate &&
812 codec->width == icodec->width &&
813 codec->height == icodec->height) {
814 /* no reencoding */
815 } else {
816 if (codec->width == icodec->width &&
817 codec->height == icodec->height) {
818 ost->video_resample = 0;
819 } else {
820 UINT8 *buf;
821 ost->video_resample = 1;
822 buf = av_malloc((codec->width * codec->height * 3) / 2);
823 if (!buf)
824 goto fail;
825 ost->pict_tmp.data[0] = buf;
826 ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
827 ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
828 ost->pict_tmp.linesize[0] = codec->width;
829 ost->pict_tmp.linesize[1] = codec->width / 2;
830 ost->pict_tmp.linesize[2] = codec->width / 2;
831
832 ost->img_resample_ctx = img_resample_full_init(
833 ost->st->codec.width, ost->st->codec.height,
834 ist->st->codec.width, ist->st->codec.height,
835 frame_topBand, frame_bottomBand,
836 frame_leftBand, frame_rightBand);
837 }
838 ost->encoding_needed = 1;
839 ist->decoding_needed = 1;
840 }
841 break;
842 default:
843 av_abort();
844 }
845 }
846
847 /* open each encoder */
848 for(i=0;i<nb_ostreams;i++) {
849 ost = ost_table[i];
850 if (ost->encoding_needed) {
851 AVCodec *codec;
852 codec = avcodec_find_encoder(ost->st->codec.codec_id);
853 if (!codec) {
854 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
855 ost->file_index, ost->index);
856 exit(1);
857 }
858 if (avcodec_open(&ost->st->codec, codec) < 0) {
859 fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
860 ost->file_index, ost->index);
861 exit(1);
862 }
863 }
864 }
865
866 /* open each decoder */
867 for(i=0;i<nb_istreams;i++) {
868 ist = ist_table[i];
869 if (ist->decoding_needed) {
870 AVCodec *codec;
871 codec = avcodec_find_decoder(ist->st->codec.codec_id);
872 if (!codec) {
873 fprintf(stderr, "Unsupported codec for input stream #%d.%d\n",
874 ist->file_index, ist->index);
875 exit(1);
876 }
877 if (avcodec_open(&ist->st->codec, codec) < 0) {
878 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
879 ist->file_index, ist->index);
880 exit(1);
881 }
882 //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
883 // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
884 }
885 }
886
887 /* init pts */
888 for(i=0;i<nb_istreams;i++) {
889 ist = ist_table[i];
890 ist->pts = 0;
891 ist->frame_number = 0;
892 }
893
894 /* compute buffer size max (should use a complete heuristic) */
895 for(i=0;i<nb_input_files;i++) {
896 file_table[i].buffer_size_max = 2048;
897 }
898
899 /* open files and write file headers */
900 for(i=0;i<nb_output_files;i++) {
901 os = output_files[i];
902 if (av_write_header(os) < 0) {
903 fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
904 ret = -EINVAL;
905 goto fail;
906 }
907 }
908
909 #ifndef CONFIG_WIN32
910 if (!do_play) {
911 fprintf(stderr, "Press [q] to stop encoding\n");
912 } else {
913 fprintf(stderr, "Press [q] to stop playing\n");
914 }
915 #endif
916 term_init();
917
918 start_time = av_gettime();
919 min_pts = 0;
920 stream_no_data = 0;
921 key = -1;
922
923 for(;;) {
924 int file_index, ist_index;
925 AVPacket pkt;
926 UINT8 *ptr;
927 int len;
928 UINT8 *data_buf;
929 int data_size, got_picture;
930 AVPicture picture;
931 short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
932
933 redo:
934 /* if 'q' pressed, exits */
935 if (key) {
936 /* read_key() returns 0 on EOF */
937 key = read_key();
938 if (key == 'q')
939 break;
940 }
941
942 /* select the input file with the smallest pts */
943 file_index = -1;
944 min_pts = MAXINT64;
945 for(i=0;i<nb_istreams;i++) {
946 ist = ist_table[i];
947 /* For some reason, the pts_increment code breaks q estimation?!? */
948 if (!ist->discard && !file_table[ist->file_index].eof_reached &&
949 ist->pts /* + ist->pts_increment */ < min_pts && input_files[ist->file_index] != stream_no_data) {
950 min_pts = ist->pts /* + ist->pts_increment */;
951 file_index = ist->file_index;
952 }
953 }
954 /* if none, if is finished */
955 if (file_index < 0) {
956 if (stream_no_data) {
957 #ifndef CONFIG_WIN32 /* no usleep in VisualC ? */
958 #ifdef __BEOS__
959 snooze(10 * 1000); /* mmu_man */ /* in microsec */
960 #elif defined(__CYGWIN__)
961 usleep(10 * 1000);
962 #else
963 struct timespec ts;
964
965 ts.tv_sec = 0;
966 ts.tv_nsec = 1000 * 1000 * 10;
967 nanosleep(&ts, 0);
968 #endif
969 #endif
970 stream_no_data = 0;
971 continue;
972 }
973 break;
974 }
975 /* finish if recording time exhausted */
976 if (recording_time > 0 && min_pts >= recording_time)
977 break;
978 /* read a packet from it and output it in the fifo */
979 is = input_files[file_index];
980 if (av_read_packet(is, &pkt) < 0) {
981 file_table[file_index].eof_reached = 1;
982 continue;
983 }
984 if (!pkt.size) {
985 stream_no_data = is;
986 } else {
987 stream_no_data = 0;
988 }
989 /* the following test is needed in case new streams appear
990 dynamically in stream : we ignore them */
991 if (pkt.stream_index >= file_table[file_index].nb_streams)
992 goto discard_packet;
993 ist_index = file_table[file_index].ist_index + pkt.stream_index;
994 ist = ist_table[ist_index];
995 if (ist->discard)
996 goto discard_packet;
997
998 if (pkt.flags & PKT_FLAG_DROPPED_FRAME)
999 ist->frame_number++;
1000
1001 if (do_hex_dump) {
1002 printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
1003 av_hex_dump(pkt.data, pkt.size);
1004 }
1005
1006 // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1007
1008 len = pkt.size;
1009 ptr = pkt.data;
1010 while (len > 0) {
1011
1012 /* decode the packet if needed */
1013 data_buf = NULL; /* fail safe */
1014 data_size = 0;
1015 if (ist->decoding_needed) {
1016 switch(ist->st->codec.codec_type) {
1017 case CODEC_TYPE_AUDIO:
1018 /* XXX: could avoid copy if PCM 16 bits with same
1019 endianness as CPU */
1020 ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
1021 ptr, len);
1022 if (ret < 0)
1023 goto fail_decode;
1024 /* Some bug in mpeg audio decoder gives */
1025 /* data_size < 0, it seems they are overflows */
1026 if (data_size <= 0) {
1027 /* no audio frame */
1028 ptr += ret;
1029 len -= ret;
1030 continue;
1031 }
1032 data_buf = (UINT8 *)samples;
1033 break;
1034 case CODEC_TYPE_VIDEO:
1035 if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
1036 int size;
1037
1038 size = (ist->st->codec.width * ist->st->codec.height);
1039 avpicture_fill(&picture, ptr,
1040 ist->st->codec.pix_fmt,
1041 ist->st->codec.width,
1042 ist->st->codec.height);
1043 ret = len;
1044 } else {
1045 data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
1046 ret = avcodec_decode_video(&ist->st->codec,
1047 &picture, &got_picture, ptr, len);
1048 if (ret < 0) {
1049 fail_decode:
1050 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1051 ist->file_index, ist->index);
1052 av_free_packet(&pkt);
1053 goto redo;
1054 }
1055 if (!got_picture) {
1056 /* no picture yet */
1057 ptr += ret;
1058 len -= ret;
1059 continue;
1060 }
1061
1062 }
1063 break;
1064 default:
1065 goto fail_decode;
1066 }
1067 } else {
1068 data_buf = ptr;
1069 data_size = len;
1070 ret = len;
1071 }
1072 /* init tickers */
1073 if (!ist->ticker_inited) {
1074 switch (ist->st->codec.codec_type) {
1075 case CODEC_TYPE_AUDIO:
1076 ticker_init(&ist->pts_ticker,
1077 (INT64)ist->st->codec.sample_rate,
1078 (INT64)(1000000));
1079 ist->ticker_inited = 1;
1080 break;
1081 case CODEC_TYPE_VIDEO:
1082 ticker_init(&ist->pts_ticker,
1083 (INT64)ist->st->r_frame_rate,
1084 ((INT64)1000000 * FRAME_RATE_BASE));
1085 ist->ticker_inited = 1;
1086 break;
1087 default:
1088 av_abort();
1089 }
1090 }
1091 /* update pts */
1092 switch(ist->st->codec.codec_type) {
1093 case CODEC_TYPE_AUDIO:
1094 //ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate;
1095 ist->pts = ticker_abs(&ist->pts_ticker, ist->sample_index);
1096 ist->sample_index += data_size / (2 * ist->st->codec.channels);
1097 ist->pts_increment = (INT64) (data_size / (2 * ist->st->codec.channels)) * 1000000 / ist->st->codec.sample_rate;
1098 break;
1099 case CODEC_TYPE_VIDEO:
1100 ist->frame_number++;
1101 //ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) /
1102 // ist->st->codec.frame_rate;
1103 ist->pts = ticker_abs(&ist->pts_ticker, ist->frame_number);
1104 ist->pts_increment = ((INT64) 1000000 * FRAME_RATE_BASE) /
1105 ist->st->codec.frame_rate;
1106 break;
1107 default:
1108 av_abort();
1109 }
1110 ptr += ret;
1111 len -= ret;
1112
1113 /* transcode raw format, encode packets and output them */
1114
1115 for(i=0;i<nb_ostreams;i++) {
1116 int frame_size;
1117 ost = ost_table[i];
1118 if (ost->source_index == ist_index) {
1119 os = output_files[ost->file_index];
1120
1121 if (ost->encoding_needed) {
1122 switch(ost->st->codec.codec_type) {
1123 case CODEC_TYPE_AUDIO:
1124 do_audio_out(os, ost, ist, data_buf, data_size);
1125 break;
1126 case CODEC_TYPE_VIDEO:
1127 do_video_out(os, ost, ist, &picture, &frame_size);
1128 if (do_vstats)
1129 do_video_stats(ost, ist, frame_size);
1130 break;
1131 default:
1132 av_abort();
1133 }
1134 } else {
1135 /* no reencoding needed : output the packet directly */
1136 /* force the input stream PTS */
1137 os->oformat->write_packet(os, ost->index, data_buf, data_size, pkt.pts);
1138 }
1139 }
1140 }
1141 }
1142 discard_packet:
1143 av_free_packet(&pkt);
1144
1145 /* dump report by using the first video and audio streams */
1146 {
1147 char buf[1024];
1148 AVFormatContext *oc;
1149 INT64 total_size, ti;
1150 AVCodecContext *enc;
1151 int frame_number, vid;
1152 double bitrate, ti1;
1153 static INT64 last_time;
1154
1155 if ((min_pts - last_time) >= 500000) {
1156 last_time = min_pts;
1157
1158 oc = output_files[0];
1159
1160 total_size = url_ftell(&oc->pb);
1161
1162 buf[0] = '\0';
1163 ti = MAXINT64;
1164 vid = 0;
1165 for(i=0;i<nb_ostreams;i++) {
1166 ost = ost_table[i];
1167 enc = &ost->st->codec;
1168 ist = ist_table[ost->source_index];
1169 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1170 frame_number = ist->frame_number;
1171 sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1172 frame_number, enc->quality);
1173 if (do_psnr)
1174 sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
1175 vid = 1;
1176 }
1177 /* compute min pts value */
1178 if (!ist->discard && ist->pts < ti) {
1179 ti = ist->pts;
1180 }
1181 }
1182
1183 ti1 = (double)ti / 1000000.0;
1184 if (ti1 < 0.01)
1185 ti1 = 0.01;
1186 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1187
1188 sprintf(buf + strlen(buf),
1189 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1190 (double)total_size / 1024, ti1, bitrate);
1191
1192 fprintf(stderr, "%s \r", buf);
1193 fflush(stderr);
1194 }
1195 }
1196 }
1197 term_exit();
1198
1199 /* dump report by using the first video and audio streams */
1200 {
1201 char buf[1024];
1202 AVFormatContext *oc;
1203 INT64 total_size, ti;
1204 AVCodecContext *enc;
1205 int frame_number, vid;
1206 double bitrate, ti1;
1207
1208 oc = output_files[0];
1209
1210 total_size = url_ftell(&oc->pb);
1211
1212 buf[0] = '\0';
1213 ti = MAXINT64;
1214 vid = 0;
1215 for(i=0;i<nb_ostreams;i++) {
1216 ost = ost_table[i];
1217 enc = &ost->st->codec;
1218 ist = ist_table[ost->source_index];
1219 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
1220 frame_number = ist->frame_number;
1221 sprintf(buf + strlen(buf), "frame=%5d q=%2d ",
1222 frame_number, enc->quality);
1223 if (do_psnr)
1224 sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y);
1225 vid = 1;
1226 }
1227 /* compute min pts value */
1228 if (!ist->discard && ist->pts < ti) {
1229 ti = ist->pts;
1230 }
1231 }
1232
1233 ti1 = ti / 1000000.0;
1234 if (ti1 < 0.01)
1235 ti1 = 0.01;
1236 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1237
1238 sprintf(buf + strlen(buf),
1239 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
1240 (double)total_size / 1024, ti1, bitrate);
1241
1242 fprintf(stderr, "%s \n", buf);
1243 }
1244 /* close each encoder */
1245 for(i=0;i<nb_ostreams;i++) {
1246 ost = ost_table[i];
1247 if (ost->encoding_needed) {
1248 avcodec_close(&ost->st->codec);
1249 }
1250 }
1251
1252 /* close each decoder */
1253 for(i=0;i<nb_istreams;i++) {
1254 ist = ist_table[i];
1255 if (ist->decoding_needed) {
1256 avcodec_close(&ist->st->codec);
1257 }
1258 }
1259
1260
1261 /* write the trailer if needed and close file */
1262 for(i=0;i<nb_output_files;i++) {
1263 os = output_files[i];
1264 av_write_trailer(os);
1265 }
1266 /* finished ! */
1267
1268 ret = 0;
1269 fail1:
1270 av_free(file_table);
1271
1272 if (ist_table) {
1273 for(i=0;i<nb_istreams;i++) {
1274 ist = ist_table[i];
1275 av_free(ist);
1276 }
1277 av_free(ist_table);
1278 }
1279 if (ost_table) {
1280 for(i=0;i<nb_ostreams;i++) {
1281 ost = ost_table[i];
1282 if (ost) {
1283 fifo_free(&ost->fifo); /* works even if fifo is not
1284 initialized but set to zero */
1285 av_free(ost->pict_tmp.data[0]);
1286 if (ost->video_resample)
1287 img_resample_close(ost->img_resample_ctx);
1288 if (ost->audio_resample)
1289 audio_resample_close(ost->resample);
1290 av_free(ost);
1291 }
1292 }
1293 av_free(ost_table);
1294 }
1295 return ret;
1296 fail:
1297 ret = -ENOMEM;
1298 goto fail1;
1299 }
1300
1301 #if 0
1302 int file_read(const char *filename)
1303 {
1304 URLContext *h;
1305 unsigned char buffer[1024];
1306 int len, i;
1307
1308 if (url_open(&h, filename, O_RDONLY) < 0) {
1309 printf("could not open '%s'\n", filename);
1310 return -1;
1311 }
1312 for(;;) {
1313 len = url_read(h, buffer, sizeof(buffer));
1314 if (len <= 0)
1315 break;
1316 for(i=0;i<len;i++) putchar(buffer[i]);
1317 }
1318 url_close(h);
1319 return 0;
1320 }
1321 #endif
1322
1323 void show_licence(void)
1324 {
1325 printf(
1326 "ffmpeg version " FFMPEG_VERSION "\n"
1327 "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
1328 "This library is free software; you can redistribute it and/or\n"
1329 "modify it under the terms of the GNU Lesser General Public\n"
1330 "License as published by the Free Software Foundation; either\n"
1331 "version 2 of the License, or (at your option) any later version.\n"
1332 "\n"
1333 "This library is distributed in the hope that it will be useful,\n"
1334 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1335 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1336 "Lesser General Public License for more details.\n"
1337 "\n"
1338 "You should have received a copy of the GNU Lesser General Public\n"
1339 "License along with this library; if not, write to the Free Software\n"
1340 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
1341 );
1342 exit(1);
1343 }
1344
1345 void opt_format(const char *arg)
1346 {
1347 file_iformat = av_find_input_format(arg);
1348 file_oformat = guess_format(arg, NULL, NULL);
1349 if (!file_iformat && !file_oformat) {
1350 fprintf(stderr, "Unknown input or output format: %s\n", arg);
1351 exit(1);
1352 }
1353 }
1354
1355 void opt_video_bitrate(const char *arg)
1356 {
1357 video_bit_rate = atoi(arg) * 1000;
1358 }
1359
1360 void opt_video_bitrate_tolerance(const char *arg)
1361 {
1362 video_bit_rate_tolerance = atoi(arg) * 1000;
1363 }
1364
1365 void opt_video_bitrate_max(const char *arg)
1366 {
1367 video_rc_max_rate = atoi(arg) * 1000;
1368 }
1369
1370 void opt_video_bitrate_min(const char *arg)
1371 {
1372 video_rc_min_rate = atoi(arg) * 1000;
1373 }
1374
1375 void opt_video_buffer_size(const char *arg)
1376 {
1377 video_rc_buffer_size = atoi(arg) * 1000;
1378 }
1379
1380 void opt_video_rc_eq(char *arg)
1381 {
1382 video_rc_eq = arg;
1383 }
1384
1385
1386 void opt_workaround_bugs(const char *arg)
1387 {
1388 workaround_bugs = atoi(arg);
1389 }
1390
1391 void opt_dct_algo(const char *arg)
1392 {
1393 dct_algo = atoi(arg);
1394 }
1395
1396 void opt_idct_algo(const char *arg)
1397 {
1398 idct_algo = atoi(arg);
1399 }
1400
1401
1402 void opt_error_resilience(const char *arg)
1403 {
1404 error_resilience = atoi(arg);
1405 }
1406
1407 void opt_frame_rate(const char *arg)
1408 {
1409 frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
1410 }
1411
1412
1413 void opt_frame_crop_top(const char *arg)
1414 {
1415 frame_topBand = atoi(arg);
1416 if (frame_topBand < 0) {
1417 fprintf(stderr, "Incorrect top crop size\n");
1418 exit(1);
1419 }
1420 if ((frame_topBand % 2) != 0) {
1421 fprintf(stderr, "Top crop size must be a multiple of 2\n");
1422 exit(1);
1423 }
1424 if ((frame_topBand) >= frame_height){
1425 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1426 exit(1);
1427 }
1428 frame_height -= frame_topBand;
1429 }
1430
1431 void opt_frame_crop_bottom(const char *arg)
1432 {
1433 frame_bottomBand = atoi(arg);
1434 if (frame_bottomBand < 0) {
1435 fprintf(stderr, "Incorrect bottom crop size\n");
1436 exit(1);
1437 }
1438 if ((frame_bottomBand % 2) != 0) {
1439 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
1440 exit(1);
1441 }
1442 if ((frame_bottomBand) >= frame_height){
1443 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1444 exit(1);
1445 }
1446 frame_height -= frame_bottomBand;
1447 }
1448
1449 void opt_frame_crop_left(const char *arg)
1450 {
1451 frame_leftBand = atoi(arg);
1452 if (frame_leftBand < 0) {
1453 fprintf(stderr, "Incorrect left crop size\n");
1454 exit(1);
1455 }
1456 if ((frame_leftBand % 2) != 0) {
1457 fprintf(stderr, "Left crop size must be a multiple of 2\n");
1458 exit(1);
1459 }
1460 if ((frame_leftBand) >= frame_width){
1461 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1462 exit(1);
1463 }
1464 frame_width -= frame_leftBand;
1465 }
1466
1467 void opt_frame_crop_right(const char *arg)
1468 {
1469 frame_rightBand = atoi(arg);
1470 if (frame_rightBand < 0) {
1471 fprintf(stderr, "Incorrect right crop size\n");
1472 exit(1);
1473 }
1474 if ((frame_rightBand % 2) != 0) {
1475 fprintf(stderr, "Right crop size must be a multiple of 2\n");
1476 exit(1);
1477 }
1478 if ((frame_rightBand) >= frame_width){
1479 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1480 exit(1);
1481 }
1482 frame_width -= frame_rightBand;
1483 }
1484
1485 void opt_frame_size(const char *arg)
1486 {
1487 parse_image_size(&frame_width, &frame_height, arg);
1488 if (frame_width <= 0 || frame_height <= 0) {
1489 fprintf(stderr, "Incorrect frame size\n");
1490 exit(1);
1491 }
1492 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1493 fprintf(stderr, "Frame size must be a multiple of 2\n");
1494 exit(1);
1495 }
1496 }
1497
1498 void opt_gop_size(const char *arg)
1499 {
1500 gop_size = atoi(arg);
1501 }
1502
1503 void opt_b_frames(const char *arg)
1504 {
1505 b_frames = atoi(arg);
1506 if (b_frames > FF_MAX_B_FRAMES) {
1507 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1508 exit(1);
1509 } else if (b_frames < 1) {
1510 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1511 exit(1);
1512 }
1513 }
1514
1515 void opt_qscale(const char *arg)
1516 {
1517 video_qscale = atoi(arg);
1518 if (video_qscale < 0 ||
1519 video_qscale > 31) {
1520 fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1521 exit(1);
1522 }
1523 }
1524
1525 void opt_qmin(const char *arg)
1526 {
1527 video_qmin = atoi(arg);
1528 if (video_qmin < 0 ||
1529 video_qmin > 31) {
1530 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1531 exit(1);
1532 }
1533 }
1534
1535 void opt_qmax(const char *arg)
1536 {
1537 video_qmax = atoi(arg);
1538 if (video_qmax < 0 ||
1539 video_qmax > 31) {
1540 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1541 exit(1);
1542 }
1543 }
1544
1545 void opt_qdiff(const char *arg)
1546 {
1547 video_qdiff = atoi(arg);
1548 if (video_qdiff < 0 ||
1549 video_qdiff > 31) {
1550 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1551 exit(1);
1552 }
1553 }
1554
1555 void opt_qblur(const char *arg)
1556 {
1557 video_qblur = atof(arg);
1558 }
1559
1560 void opt_qcomp(const char *arg)
1561 {
1562 video_qcomp = atof(arg);
1563 }
1564
1565 void opt_b_qfactor(const char *arg)
1566 {
1567 video_b_qfactor = atof(arg);
1568 }
1569 void opt_i_qfactor(const char *arg)
1570 {
1571 video_i_qfactor = atof(arg);
1572 }
1573 void opt_b_qoffset(const char *arg)
1574 {
1575 video_b_qoffset = atof(arg);
1576 }
1577 void opt_i_qoffset(const char *arg)
1578 {
1579 video_i_qoffset = atof(arg);
1580 }
1581
1582 void opt_packet_size(const char *arg)
1583 {
1584 packet_size= atoi(arg);
1585 }
1586
1587 void opt_audio_bitrate(const char *arg)
1588 {
1589 audio_bit_rate = atoi(arg) * 1000;
1590 }
1591
1592 void opt_audio_rate(const char *arg)
1593 {
1594 audio_sample_rate = atoi(arg);
1595 }
1596
1597 void opt_audio_channels(const char *arg)
1598 {
1599 audio_channels = atoi(arg);
1600 }
1601
1602 void opt_video_device(const char *arg)
1603 {
1604 v4l_device = strdup(arg);
1605 }
1606
1607 void opt_audio_device(const char *arg)
1608 {
1609 audio_device = strdup(arg);
1610 }
1611
1612 void opt_audio_codec(const char *arg)
1613 {
1614 AVCodec *p;
1615
1616 p = first_avcodec;
1617 while (p) {
1618 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1619 break;
1620 p = p->next;
1621 }
1622 if (p == NULL) {
1623 fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1624 exit(1);
1625 } else {
1626 audio_codec_id = p->id;
1627 }
1628 }
1629
1630 const char *motion_str[] = {
1631 "zero",
1632 "full",
1633 "log",
1634 "phods",
1635 "epzs",
1636 "x1",
1637 NULL,
1638 };
1639
1640 void opt_motion_estimation(const char *arg)
1641 {
1642 const char **p;
1643 p = motion_str;
1644 for(;;) {
1645 if (!*p) {
1646 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1647 exit(1);
1648 }
1649 if (!strcmp(*p, arg))
1650 break;
1651 p++;
1652 }
1653 me_method = (p - motion_str) + 1;
1654 }
1655
1656 void opt_video_codec(const char *arg)
1657 {
1658 AVCodec *p;
1659
1660 p = first_avcodec;
1661 while (p) {
1662 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1663 break;
1664 p = p->next;
1665 }
1666 if (p == NULL) {
1667 fprintf(stderr, "Unknown video codec '%s'\n", arg);
1668 exit(1);
1669 } else {
1670 video_codec_id = p->id;
1671 }
1672 }
1673
1674 void opt_map(const char *arg)
1675 {
1676 AVStreamMap *m;
1677 const char *p;
1678
1679 p = arg;
1680 m = &stream_maps[nb_stream_maps++];
1681
1682 m->file_index = strtol(arg, (char **)&p, 0);
1683 if (*p)
1684 p++;
1685
1686 m->stream_index = strtol(p, (char **)&p, 0);
1687 }
1688
1689 void opt_recording_time(const char *arg)
1690 {
1691 recording_time = parse_date(arg, 1);
1692 }
1693
1694 void print_error(const char *filename, int err)
1695 {
1696 switch(err) {
1697 case AVERROR_NUMEXPECTED:
1698 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
1699 "Use '%%d' to specify the image number:\n"
1700 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
1701 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
1702 filename);
1703 break;
1704 case AVERROR_INVALIDDATA:
1705 fprintf(stderr, "%s: Error while parsing header\n", filename);
1706 break;
1707 case AVERROR_NOFMT:
1708 fprintf(stderr, "%s: Unknown format\n", filename);
1709 break;
1710 default:
1711 fprintf(stderr, "%s: Error while opening file\n", filename);
1712 break;
1713 }
1714 }
1715
1716 void opt_input_file(const char *filename)
1717 {
1718 AVFormatContext *ic;
1719 AVFormatParameters params, *ap = &params;
1720 int err, i, ret, rfps;
1721
1722 /* get default parameters from command line */
1723 memset(ap, 0, sizeof(*ap));
1724 ap->sample_rate = audio_sample_rate;
1725 ap->channels = audio_channels;
1726 ap->frame_rate = frame_rate;
1727 ap->width = frame_width;
1728 ap->height = frame_height;
1729
1730 /* open the input file with generic libav function */
1731 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
1732 if (err < 0) {
1733 print_error(filename, err);
1734 exit(1);
1735 }
1736
1737 /* If not enough info to get the stream parameters, we decode the
1738 first frames to get it. (used in mpeg case for example) */
1739 ret = av_find_stream_info(ic);
1740 if (ret < 0) {
1741 fprintf(stderr, "%s: could not find codec parameters\n", filename);
1742 exit(1);
1743 }
1744
1745 /* update the current parameters so that they match the one of the input stream */
1746 for(i=0;i<ic->nb_streams;i++) {
1747 AVCodecContext *enc = &ic->streams[i]->codec;
1748 switch(enc->codec_type) {
1749 case CODEC_TYPE_AUDIO:
1750 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
1751 audio_channels = enc->channels;
1752 audio_sample_rate = enc->sample_rate;
1753 break;
1754 case CODEC_TYPE_VIDEO:
1755 frame_height = enc->height;
1756 frame_width = enc->width;
1757 rfps = ic->streams[i]->r_frame_rate;
1758 enc->workaround_bugs = workaround_bugs;
1759 enc->error_resilience = error_resilience;
1760 enc->idct_algo= idct_algo;
1761 if (enc->frame_rate != rfps) {
1762 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
1763 i, (float)enc->frame_rate / FRAME_RATE_BASE,
1764 (float)rfps / FRAME_RATE_BASE);
1765 }
1766 /* update the current frame rate to match the stream frame rate */
1767 frame_rate = rfps;
1768 break;
1769 default:
1770 av_abort();
1771 }
1772 }
1773
1774 input_files[nb_input_files] = ic;
1775 /* dump the file content */
1776 dump_format(ic, nb_input_files, filename, 0);
1777 nb_input_files++;
1778 file_iformat = NULL;
1779 file_oformat = NULL;
1780 }
1781
1782 void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
1783 {
1784 int has_video, has_audio, i, j;
1785 AVFormatContext *ic;
1786
1787 has_video = 0;
1788 has_audio = 0;
1789 for(j=0;j<nb_input_files;j++) {
1790 ic = input_files[j];
1791 for(i=0;i<ic->nb_streams;i++) {
1792 AVCodecContext *enc = &ic->streams[i]->codec;
1793 switch(enc->codec_type) {
1794 case CODEC_TYPE_AUDIO:
1795 has_audio = 1;
1796 break;
1797 case CODEC_TYPE_VIDEO:
1798 has_video = 1;
1799 break;
1800 default:
1801 av_abort();
1802 }
1803 }
1804 }
1805 *has_video_ptr = has_video;
1806 *has_audio_ptr = has_audio;
1807 }
1808
1809 void opt_output_file(const char *filename)
1810 {
1811 AVStream *st;
1812 AVFormatContext *oc;
1813 int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
1814 int codec_id;
1815
1816 if (!strcmp(filename, "-"))
1817 filename = "pipe:";
1818
1819 oc = av_mallocz(sizeof(AVFormatContext));
1820
1821 if (!file_oformat) {
1822 file_oformat = guess_format(NULL, filename, NULL);
1823 if (!file_oformat) {
1824 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
1825 filename);
1826 exit(1);
1827 }
1828 }
1829
1830 oc->oformat = file_oformat;
1831
1832 if (!strcmp(file_oformat->name, "ffm") &&
1833 strstart(filename, "http:", NULL)) {
1834 /* special case for files sent to ffserver: we get the stream
1835 parameters from ffserver */
1836 if (read_ffserver_streams(oc, filename) < 0) {
1837 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
1838 exit(1);
1839 }
1840 } else {
1841 use_video = file_oformat->video_codec != CODEC_ID_NONE;
1842 use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
1843
1844 /* disable if no corresponding type found and at least one
1845 input file */
1846 if (nb_input_files > 0) {
1847 check_audio_video_inputs(&input_has_video, &input_has_audio);
1848 if (!input_has_video)
1849 use_video = 0;
1850 if (!input_has_audio)
1851 use_audio = 0;
1852 }
1853
1854 /* manual disable */
1855 if (audio_disable) {
1856 use_audio = 0;
1857 }
1858 if (video_disable) {
1859 use_video = 0;
1860 }
1861
1862 nb_streams = 0;
1863 if (use_video) {
1864 AVCodecContext *video_enc;
1865
1866 st = av_mallocz(sizeof(AVStream));
1867 if (!st) {
1868 fprintf(stderr, "Could not alloc stream\n");
1869 exit(1);
1870 }
1871 video_enc = &st->codec;
1872
1873 codec_id = file_oformat->video_codec;
1874 if (video_codec_id != CODEC_ID_NONE)
1875 codec_id = video_codec_id;
1876
1877 video_enc->codec_id = codec_id;
1878 video_enc->codec_type = CODEC_TYPE_VIDEO;
1879
1880 video_enc->bit_rate = video_bit_rate;
1881 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
1882 video_enc->frame_rate = frame_rate;
1883
1884 video_enc->width = frame_width;
1885 video_enc->height = frame_height;
1886 if (!intra_only)
1887 video_enc->gop_size = gop_size;
1888 else
1889 video_enc->gop_size = 0;
1890 if (video_qscale || same_quality) {
1891 video_enc->flags |= CODEC_FLAG_QSCALE;
1892 video_enc->quality = video_qscale;
1893 }
1894
1895 if (use_hq) {
1896 video_enc->flags |= CODEC_FLAG_HQ;
1897 }
1898
1899 if (use_4mv) {
1900 video_enc->flags |= CODEC_FLAG_HQ;
1901 video_enc->flags |= CODEC_FLAG_4MV;
1902 }
1903
1904 if(use_part)
1905 video_enc->flags |= CODEC_FLAG_PART;
1906
1907
1908 if (b_frames) {
1909 if (codec_id != CODEC_ID_MPEG4) {
1910 fprintf(stderr, "\nB frames encoding only supported by MPEG-4.\n");
1911 exit(1);
1912 }
1913 video_enc->max_b_frames = b_frames;
1914 video_enc->b_frame_strategy = 0;
1915 video_enc->b_quant_factor = 2.0;
1916 }
1917
1918 video_enc->qmin = video_qmin;
1919 video_enc->qmax = video_qmax;
1920 video_enc->max_qdiff = video_qdiff;
1921 video_enc->qblur = video_qblur;
1922 video_enc->qcompress = video_qcomp;
1923 video_enc->rc_eq = video_rc_eq;
1924 video_enc->rc_max_rate = video_rc_max_rate;
1925 video_enc->rc_min_rate = video_rc_min_rate;
1926 video_enc->rc_buffer_size = video_rc_buffer_size;
1927 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
1928 video_enc->i_quant_factor = video_i_qfactor;
1929 video_enc->b_quant_factor = video_b_qfactor;
1930 video_enc->i_quant_offset = video_i_qoffset;
1931 video_enc->b_quant_offset = video_b_qoffset;
1932 video_enc->dct_algo = dct_algo;
1933 video_enc->idct_algo = idct_algo;
1934 if(packet_size){
1935 video_enc->rtp_mode= 1;
1936 video_enc->rtp_payload_size= packet_size;
1937 }
1938
1939 if (do_psnr)
1940 video_enc->get_psnr = 1;
1941 else
1942 video_enc->get_psnr = 0;
1943
1944 video_enc->me_method = me_method;
1945
1946 /* XXX: need to find a way to set codec parameters */
1947 if (oc->oformat->flags & AVFMT_RGB24) {
1948 video_enc->pix_fmt = PIX_FMT_RGB24;
1949 }
1950
1951 oc->streams[nb_streams] = st;
1952 nb_streams++;
1953 }
1954
1955 if (use_audio) {
1956 AVCodecContext *audio_enc;
1957
1958 st = av_mallocz(sizeof(AVStream));
1959 if (!st) {
1960 fprintf(stderr, "Could not alloc stream\n");
1961 exit(1);
1962 }
1963 audio_enc = &st->codec;
1964 codec_id = file_oformat->audio_codec;
1965 if (audio_codec_id != CODEC_ID_NONE)
1966 codec_id = audio_codec_id;
1967 audio_enc->codec_id = codec_id;
1968 audio_enc->codec_type = CODEC_TYPE_AUDIO;
1969
1970 audio_enc->bit_rate = audio_bit_rate;
1971 audio_enc->sample_rate = audio_sample_rate;
1972 /* For audio codecs other than AC3 we limit */
1973 /* the number of coded channels to stereo */
1974 if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
1975 audio_enc->channels = 2;
1976 } else
1977 audio_enc->channels = audio_channels;
1978 oc->streams[nb_streams] = st;
1979 nb_streams++;
1980 }
1981
1982 oc->nb_streams = nb_streams;
1983
1984 if (!nb_streams) {
1985 fprintf(stderr, "No audio or video streams available\n");
1986 exit(1);
1987 }
1988
1989 if (str_title)
1990 pstrcpy(oc->title, sizeof(oc->title), str_title);
1991 if (str_author)
1992 pstrcpy(oc->author, sizeof(oc->author), str_author);
1993 if (str_copyright)
1994 pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
1995 if (str_comment)
1996 pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
1997 }
1998
1999 output_files[nb_output_files] = oc;
2000 /* dump the file content */
2001 dump_format(oc, nb_output_files, filename, 1);
2002 nb_output_files++;
2003
2004 strcpy(oc->filename, filename);
2005
2006 /* check filename in case of an image number is expected */
2007 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2008 if (filename_number_test(oc->filename) < 0) {
2009 print_error(oc->filename, AVERROR_NUMEXPECTED);
2010 exit(1);
2011 }
2012 }
2013
2014 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2015 /* test if it already exists to avoid loosing precious files */
2016 if (!file_overwrite &&
2017 (strchr(filename, ':') == NULL ||
2018 strstart(filename, "file:", NULL))) {
2019 if (url_exist(filename)) {
2020 int c;
2021
2022 printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
2023 fflush(stdout);
2024 c = getchar();
2025 if (toupper(c) != 'Y') {
2026 fprintf(stderr, "Not overwriting - exiting\n");
2027 exit(1);
2028 }
2029 }
2030 }
2031
2032 /* open the file */
2033 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
2034 fprintf(stderr, "Could not open '%s'\n", filename);
2035 exit(1);
2036 }
2037 }
2038
2039 /* reset some options */
2040 file_oformat = NULL;
2041 file_iformat = NULL;
2042 audio_disable = 0;
2043 video_disable = 0;
2044 audio_codec_id = CODEC_ID_NONE;
2045 video_codec_id = CODEC_ID_NONE;
2046 }
2047
2048 /* prepare dummy protocols for grab */
2049 void prepare_grab(void)
2050 {
2051 int has_video, has_audio, i, j;
2052 AVFormatContext *oc;
2053 AVFormatContext *ic;
2054 AVFormatParameters ap1, *ap = &ap1;
2055
2056 /* see if audio/video inputs are needed */
2057 has_video = 0;
2058 has_audio = 0;
2059 memset(ap, 0, sizeof(*ap));
2060 for(j=0;j<nb_output_files;j++) {
2061 oc = output_files[j];
2062 for(i=0;i<oc->nb_streams;i++) {
2063 AVCodecContext *enc = &oc->streams[i]->codec;
2064 switch(enc->codec_type) {
2065 case CODEC_TYPE_AUDIO:
2066 if (enc->sample_rate > ap->sample_rate)
2067 ap->sample_rate = enc->sample_rate;
2068 if (enc->channels > ap->channels)
2069 ap->channels = enc->channels;
2070 has_audio = 1;
2071 break;
2072 case CODEC_TYPE_VIDEO:
2073 if (enc->width > ap->width)
2074 ap->width = enc->width;
2075 if (enc->height > ap->height)
2076 ap->height = enc->height;
2077 if (enc->frame_rate > ap->frame_rate)
2078 ap->frame_rate = enc->frame_rate;
2079 has_video = 1;
2080 break;
2081 default:
2082 av_abort();
2083 }
2084 }
2085 }
2086
2087 if (has_video == 0 && has_audio == 0) {
2088 fprintf(stderr, "Output file must have at least one audio or video stream\n");
2089 exit(1);
2090 }
2091
2092 if (has_video) {
2093 AVInputFormat *fmt1;
2094 fmt1 = av_find_input_format("video_grab_device");
2095 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2096 fprintf(stderr, "Could not find video grab device\n");
2097 exit(1);
2098 }
2099 /* by now video grab has one stream */
2100 ic->streams[0]->r_frame_rate = ap->frame_rate;
2101 input_files[nb_input_files] = ic;
2102 dump_format(ic, nb_input_files, v4l_device, 0);
2103 nb_input_files++;
2104 }
2105 if (has_audio) {
2106 AVInputFormat *fmt1;
2107 fmt1 = av_find_input_format("audio_device");
2108 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2109 fprintf(stderr, "Could not find audio grab device\n");
2110 exit(1);
2111 }
2112 input_files[nb_input_files] = ic;
2113 dump_format(ic, nb_input_files, audio_device, 0);
2114 nb_input_files++;
2115 }
2116 }
2117
2118 /* open the necessary output devices for playing */
2119 void prepare_play(void)
2120 {
2121 file_iformat = NULL;
2122 file_oformat = guess_format("audio_device", NULL, NULL);
2123 if (!file_oformat) {
2124 fprintf(stderr, "Could not find audio device\n");
2125 exit(1);
2126 }
2127
2128 opt_output_file(audio_device);
2129 }
2130
2131
2132 #ifndef CONFIG_WIN32
2133 INT64 getutime(void)
2134 {
2135 struct rusage rusage;
2136
2137 getrusage(RUSAGE_SELF, &rusage);
2138 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2139 }
2140 #else
2141 INT64 getutime(void)
2142 {
2143 return av_gettime();
2144 }
2145 #endif
2146
2147 extern int ffm_nopts;
2148
2149 void opt_bitexact(void)
2150 {
2151 avcodec_set_bit_exact();
2152 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2153 ffm_nopts = 1;
2154 }
2155
2156 void show_formats(void)
2157 {
2158 AVInputFormat *ifmt;
2159 AVOutputFormat *ofmt;
2160 URLProtocol *up;
2161 AVCodec *p;
2162 const char **pp;
2163
2164 printf("File formats:\n");
2165 printf(" Encoding:");
2166 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2167 printf(" %s", ofmt->name);
2168 }
2169 printf("\n");
2170 printf(" Decoding:");
2171 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2172 printf(" %s", ifmt->name);
2173 }
2174 printf("\n");
2175
2176 printf("Codecs:\n");
2177 printf(" Encoders:");
2178 for(p = first_avcodec; p != NULL; p = p->next) {
2179 if (p->encode)
2180 printf(" %s", p->name);
2181 }
2182 printf("\n");
2183
2184 printf(" Decoders:");
2185 for(p = first_avcodec; p != NULL; p = p->next) {
2186 if (p->decode)
2187 printf(" %s", p->name);
2188 }
2189 printf("\n");
2190
2191 printf("Supported file protocols:");
2192 for(up = first_protocol; up != NULL; up = up->next)
2193 printf(" %s:", up->name);
2194 printf("\n");
2195
2196 printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
2197 printf("Motion estimation methods:");
2198 pp = motion_str;
2199 while (*pp) {
2200 printf(" %s", *pp);
2201 if ((pp - motion_str + 1) == ME_ZERO)
2202 printf("(fastest)");
2203 else if ((pp - motion_str + 1) == ME_FULL)
2204 printf("(slowest)");
2205 else if ((pp - motion_str + 1) == ME_EPZS)
2206 printf("(default)");
2207 pp++;
2208 }
2209 printf("\n");
2210 exit(1);
2211 }
2212
2213 void show_help(void)
2214 {
2215 const char *prog;
2216 const OptionDef *po;
2217 int i, expert;
2218
2219 prog = do_play ? "ffplay" : "ffmpeg";
2220
2221 printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n",
2222 prog);
2223
2224 if (!do_play) {
2225 printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
2226 "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
2227 } else {
2228 printf("usage: ffplay [options] input_file...\n"
2229 "Simple audio player\n");
2230 }
2231
2232 printf("\n"
2233 "Main options are:\n");
2234 for(i=0;i<2;i++) {
2235 if (i == 1)
2236 printf("\nAdvanced options are:\n");
2237 for(po = options; po->name != NULL; po++) {
2238 char buf[64];
2239 expert = (po->flags & OPT_EXPERT) != 0;
2240 if (expert == i) {
2241 strcpy(buf, po->name);
2242 if (po->flags & HAS_ARG) {
2243 strcat(buf, " ");
2244 strcat(buf, po->argname);
2245 }
2246 printf("-%-17s %s\n", buf, po->help);
2247 }
2248 }
2249 }
2250
2251 exit(1);
2252 }
2253
2254 const OptionDef options[] = {
2255 { "L", 0, {(void*)show_licence}, "show license" },
2256 { "h", 0, {(void*)show_help}, "show help" },
2257 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2258 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2259 { "vcd", OPT_BOOL, {(void*)&mpeg_vcd}, "output Video CD MPEG-PS compliant file" },
2260 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
2261 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
2262 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
2263 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
2264 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
2265 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
2266 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
2267 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
2268 /* video options */
2269 { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
2270 { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
2271 { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2272 { "croptop", HAS_ARG, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
2273 { "cropbottom", HAS_ARG, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
2274 { "cropleft", HAS_ARG, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
2275 { "cropright", HAS_ARG, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
2276 { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
2277 { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
2278 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2279 { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
2280 { "qmin", HAS_ARG | OPT_EXPERT, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
2281 { "qmax", HAS_ARG | OPT_EXPERT, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
2282 { "qdiff", HAS_ARG | OPT_EXPERT, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
2283 { "qblur", HAS_ARG | OPT_EXPERT, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
2284 { "qcomp", HAS_ARG | OPT_EXPERT, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
2285 { "b_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
2286 { "i_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
2287 { "b_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
2288 { "i_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
2289 { "rc_eq", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_eq}, "", "equation" },
2290 { "bt", HAS_ARG, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
2291 { "maxrate", HAS_ARG, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
2292 { "minrate", HAS_ARG, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
2293 { "bufsize", HAS_ARG, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kbit)", "size" },
2294 { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video grab device", "device" },
2295 { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" },
2296 { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method",
2297 "method" },
2298 { "dct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_dct_algo}, "set dct algo", "algo" },
2299 { "idct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_idct_algo}, "set idct algo", "algo" },
2300 { "er", HAS_ARG | OPT_EXPERT, {(void*)opt_error_resilience}, "set error resilience", "" },
2301 { "bf", HAS_ARG | OPT_EXPERT, {(void*)opt_b_frames}, "use 'frames' B frames (only MPEG-4)", "frames" },
2302 { "hq", OPT_BOOL | OPT_EXPERT, {(void*)&use_hq}, "activate high quality settings" },
2303 { "4mv", OPT_BOOL | OPT_EXPERT, {(void*)&use_4mv}, "use four motion vector by macroblock (only MPEG-4)" },
2304 { "part", OPT_BOOL | OPT_EXPERT, {(void*)&use_part}, "use data partitioning (only MPEG-4)" },
2305 { "bug", HAS_ARG | OPT_EXPERT, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
2306 { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "packet size", "size in bits" },
2307 { "sameq", OPT_BOOL, {(void*)&same_quality},
2308 "use same video quality as source (implies VBR)" },
2309 /* audio options */
2310 { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
2311 { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
2312 { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
2313 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2314 { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
2315 { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" },
2316 { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace},
2317 "deinterlace pictures" },
2318 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
2319 "add timings for benchmarking" },
2320 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
2321 "dump each input packet" },
2322 { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
2323 { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" },
2324 { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" },
2325 { NULL, },
2326 };
2327
2328 int main(int argc, char **argv)
2329 {
2330 int optindex, i;
2331 const char *opt, *arg;
2332 const OptionDef *po;
2333 INT64 ti;
2334
2335 av_register_all();
2336
2337 /* detect if invoked as player */
2338 i = strlen(argv[0]);
2339 if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
2340 do_play = 1;
2341
2342 if (argc <= 1)
2343 show_help();
2344
2345 /* parse options */
2346 optindex = 1;
2347 while (optindex < argc) {
2348 opt = argv[optindex++];
2349
2350 if (opt[0] == '-' && opt[1] != '\0') {
2351 po = options;
2352 while (po->name != NULL) {
2353 if (!strcmp(opt + 1, po->name))
2354 break;
2355 po++;
2356 }
2357 if (!po->name) {
2358 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
2359 exit(1);
2360 }
2361 arg = NULL;
2362 if (po->flags & HAS_ARG)
2363 arg = argv[optindex++];
2364 if (po->flags & OPT_STRING) {
2365 char *str;
2366 str = strdup(arg);
2367 *po->u.str_arg = str;
2368 } else if (po->flags & OPT_BOOL) {
2369 *po->u.int_arg = 1;
2370 } else {
2371 po->u.func_arg(arg);
2372 }
2373 } else {
2374 if (!do_play) {
2375 opt_output_file(opt);
2376 } else {
2377 opt_input_file(opt);
2378 }
2379 }
2380 }
2381
2382
2383 if (!do_play) {
2384 /* file converter / grab */
2385 if (nb_output_files <= 0) {
2386 fprintf(stderr, "Must supply at least one output file\n");
2387 exit(1);
2388 }
2389
2390 if (nb_input_files == 0) {
2391 prepare_grab();
2392 }
2393 } else {
2394 /* player */
2395 if (nb_input_files <= 0) {
2396 fprintf(stderr, "Must supply at least one input file\n");
2397 exit(1);
2398 }
2399 prepare_play();
2400 }
2401
2402 ti = getutime();
2403 av_encode(output_files, nb_output_files, input_files, nb_input_files,
2404 stream_maps, nb_stream_maps);
2405 ti = getutime() - ti;
2406 if (do_benchmark) {
2407 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2408 }
2409
2410 /* close files */
2411 for(i=0;i<nb_output_files;i++) {
2412 if (!(output_files[i]->oformat->flags & AVFMT_NOFILE))
2413 url_fclose(&output_files[i]->pb);
2414 }
2415 for(i=0;i<nb_input_files;i++)
2416 av_close_input_file(input_files[i]);
2417
2418 return 0;
2419 }