os2 support patch by ("Slavik Gnatenko" <miracle9 at newmail dot ru>)
[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 "framehook.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 CONFIG_OS2
32 #include <sys/types.h>
33 #include <sys/select.h>
34 #include <stdlib.h>
35 #endif
36 #include <time.h>
37 #include <ctype.h>
38
39 #if !defined(INFINITY) && defined(HUGE_VAL)
40 #define INFINITY HUGE_VAL
41 #endif
42
43 #define MAXINT64 INT64_C(0x7fffffffffffffff)
44
45 typedef struct {
46 const char *name;
47 int flags;
48 #define HAS_ARG 0x0001
49 #define OPT_BOOL 0x0002
50 #define OPT_EXPERT 0x0004
51 #define OPT_STRING 0x0008
52 union {
53 void (*func_arg)();
54 int *int_arg;
55 char **str_arg;
56 } u;
57 const char *help;
58 const char *argname;
59 } OptionDef;
60
61 /* select an input stream for an output stream */
62 typedef struct AVStreamMap {
63 int file_index;
64 int stream_index;
65 } AVStreamMap;
66
67 extern const OptionDef options[];
68
69 void show_help(void);
70
71 #define MAX_FILES 20
72
73 static AVFormatContext *input_files[MAX_FILES];
74 static int nb_input_files = 0;
75
76 static AVFormatContext *output_files[MAX_FILES];
77 static int nb_output_files = 0;
78
79 static AVStreamMap stream_maps[MAX_FILES];
80 static int nb_stream_maps;
81
82 static AVInputFormat *file_iformat;
83 static AVOutputFormat *file_oformat;
84 static AVImageFormat *image_format;
85 static int frame_width = 160;
86 static int frame_height = 128;
87 static int frame_topBand = 0;
88 static int frame_bottomBand = 0;
89 static int frame_leftBand = 0;
90 static int frame_rightBand = 0;
91 static int frame_rate = 25 * FRAME_RATE_BASE;
92 extern int emulate_frame_rate;
93 static int video_bit_rate = 200*1000;
94 static int video_bit_rate_tolerance = 4000*1000;
95 static int video_qscale = 0;
96 static int video_qmin = 2;
97 static int video_qmax = 31;
98 static int video_mb_qmin = 2;
99 static int video_mb_qmax = 31;
100 static int video_qdiff = 3;
101 static float video_qblur = 0.5;
102 static float video_qcomp = 0.5;
103 #if 0 //experimental, (can be removed)
104 static float video_rc_qsquish=1.0;
105 static float video_rc_qmod_amp=0;
106 static int video_rc_qmod_freq=0;
107 #endif
108 static char *video_rc_override_string=NULL;
109 static char *video_rc_eq="tex^qComp";
110 static int video_rc_buffer_size=0;
111 static float video_rc_buffer_aggressivity=1.0;
112 static int video_rc_max_rate=0;
113 static int video_rc_min_rate=0;
114 static float video_rc_initial_cplx=0;
115 static float video_b_qfactor = 1.25;
116 static float video_b_qoffset = 1.25;
117 static float video_i_qfactor = -0.8;
118 static float video_i_qoffset = 0.0;
119 static int me_method = ME_EPZS;
120 static int video_disable = 0;
121 static int video_codec_id = CODEC_ID_NONE;
122 static int same_quality = 0;
123 static int b_frames = 0;
124 static int use_hq = 0;
125 static int use_4mv = 0;
126 static int do_deinterlace = 0;
127 static int workaround_bugs = FF_BUG_AUTODETECT;
128 static int error_resilience = 2;
129 static int error_concealment = 3;
130 static int dct_algo = 0;
131 static int idct_algo = 0;
132 static int use_part = 0;
133 static int packet_size = 0;
134 static int strict = 0;
135 static int debug = 0;
136
137 static int gop_size = 12;
138 static int intra_only = 0;
139 static int audio_sample_rate = 44100;
140 static int audio_bit_rate = 64000;
141 static int audio_disable = 0;
142 static int audio_channels = 1;
143 static int audio_codec_id = CODEC_ID_NONE;
144
145 static INT64 recording_time = 0;
146 static int file_overwrite = 0;
147 static char *str_title = NULL;
148 static char *str_author = NULL;
149 static char *str_copyright = NULL;
150 static char *str_comment = NULL;
151 static int do_benchmark = 0;
152 static int do_hex_dump = 0;
153 static int do_play = 0;
154 static int do_psnr = 0;
155 static int do_vstats = 0;
156 static int do_pass = 0;
157 static char *pass_logfilename = NULL;
158 static int audio_stream_copy = 0;
159 static int video_stream_copy = 0;
160
161 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
162
163 #if !defined(CONFIG_AUDIO_OSS) && !defined(CONFIG_AUDIO_BEOS)
164 const char *audio_device = "none";
165 #endif
166 #ifndef CONFIG_VIDEO4LINUX
167 const char *v4l_device = "none";
168 #endif
169
170 typedef struct AVOutputStream {
171 int file_index; /* file index */
172 int index; /* stream index in the output file */
173 int source_index; /* AVInputStream index */
174 AVStream *st; /* stream in the output file */
175 int encoding_needed; /* true if encoding needed for this stream */
176 int frame_number;
177 /* input pts and corresponding output pts
178 for A/V sync */
179 double sync_ipts;
180 double sync_ipts_offset;
181 INT64 sync_opts;
182 /* video only */
183 int video_resample; /* video_resample and video_crop are mutually exclusive */
184 AVPicture pict_tmp; /* temporary image for resampling */
185 ImgReSampleContext *img_resample_ctx; /* for image resampling */
186
187 int video_crop; /* video_resample and video_crop are mutually exclusive */
188 int topBand; /* cropping area sizes */
189 int leftBand;
190
191 /* audio only */
192 int audio_resample;
193 ReSampleContext *resample; /* for audio resampling */
194 FifoBuffer fifo; /* for compression: one audio fifo per codec */
195 FILE *logfile;
196 } AVOutputStream;
197
198 typedef struct AVInputStream {
199 int file_index;
200 int index;
201 AVStream *st;
202 int discard; /* true if stream data should be discarded */
203 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
204 INT64 sample_index; /* current sample */
205 int frame_decoded; /* true if a video or audio frame has been decoded */
206 } AVInputStream;
207
208 typedef struct AVInputFile {
209 int eof_reached; /* true if eof reached */
210 int ist_index; /* index of first stream in ist_table */
211 int buffer_size; /* current total buffer size */
212 int buffer_size_max; /* buffer size at which we consider we can stop
213 buffering */
214 int nb_streams; /* nb streams we are aware of */
215 } AVInputFile;
216
217 #ifndef CONFIG_WIN32
218
219 /* init terminal so that we can grab keys */
220 static struct termios oldtty;
221
222 static void term_exit(void)
223 {
224 tcsetattr (0, TCSANOW, &oldtty);
225 }
226
227 static void term_init(void)
228 {
229 struct termios tty;
230
231 tcgetattr (0, &tty);
232 oldtty = tty;
233
234 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
235 |INLCR|IGNCR|ICRNL|IXON);
236 tty.c_oflag |= OPOST;
237 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
238 tty.c_cflag &= ~(CSIZE|PARENB);
239 tty.c_cflag |= CS8;
240 tty.c_cc[VMIN] = 1;
241 tty.c_cc[VTIME] = 0;
242
243 tcsetattr (0, TCSANOW, &tty);
244
245 atexit(term_exit);
246 #ifdef CONFIG_BEOS_NETSERVER
247 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
248 #endif
249 }
250
251 /* read a key without blocking */
252 static int read_key(void)
253 {
254 int n = 1;
255 unsigned char ch;
256 #ifndef CONFIG_BEOS_NETSERVER
257 struct timeval tv;
258 fd_set rfds;
259
260 FD_ZERO(&rfds);
261 FD_SET(0, &rfds);
262 tv.tv_sec = 0;
263 tv.tv_usec = 0;
264 n = select(1, &rfds, NULL, NULL, &tv);
265 #endif
266 if (n > 0) {
267 n = read(0, &ch, 1);
268 if (n == 1)
269 return ch;
270
271 return n;
272 }
273 return -1;
274 }
275
276 #else
277
278 /* no interactive support */
279 static void term_exit(void)
280 {
281 }
282
283 static void term_init(void)
284 {
285 }
286
287 static int read_key(void)
288 {
289 return 0;
290 }
291
292 #endif
293
294 int read_ffserver_streams(AVFormatContext *s, const char *filename)
295 {
296 int i, err;
297 AVFormatContext *ic;
298
299 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
300 if (err < 0)
301 return err;
302 /* copy stream format */
303 s->nb_streams = ic->nb_streams;
304 for(i=0;i<ic->nb_streams;i++) {
305 AVStream *st;
306
307 st = av_mallocz(sizeof(AVFormatContext));
308 memcpy(st, ic->streams[i], sizeof(AVStream));
309 s->streams[i] = st;
310 }
311
312 av_close_input_file(ic);
313 return 0;
314 }
315
316 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
317
318 static void do_audio_out(AVFormatContext *s,
319 AVOutputStream *ost,
320 AVInputStream *ist,
321 unsigned char *buf, int size)
322 {
323 UINT8 *buftmp;
324 UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */
325 UINT8 audio_out[4*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it - yep really WMA */
326 int size_out, frame_bytes, ret;
327 AVCodecContext *enc;
328
329 enc = &ost->st->codec;
330
331 if (ost->audio_resample) {
332 buftmp = audio_buf;
333 size_out = audio_resample(ost->resample,
334 (short *)buftmp, (short *)buf,
335 size / (ist->st->codec.channels * 2));
336 size_out = size_out * enc->channels * 2;
337 } else {
338 buftmp = buf;
339 size_out = size;
340 }
341
342 /* now encode as many frames as possible */
343 if (enc->frame_size > 1) {
344 /* output resampled raw samples */
345 fifo_write(&ost->fifo, buftmp, size_out,
346 &ost->fifo.wptr);
347
348 frame_bytes = enc->frame_size * 2 * enc->channels;
349
350 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
351 &ost->fifo.rptr) == 0) {
352 ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out),
353 (short *)audio_buf);
354 av_write_frame(s, ost->index, audio_out, ret);
355 }
356 } else {
357 /* output a pcm frame */
358 /* XXX: change encoding codec API to avoid this ? */
359 switch(enc->codec->id) {
360 case CODEC_ID_PCM_S16LE:
361 case CODEC_ID_PCM_S16BE:
362 case CODEC_ID_PCM_U16LE:
363 case CODEC_ID_PCM_U16BE:
364 break;
365 default:
366 size_out = size_out >> 1;
367 break;
368 }
369 ret = avcodec_encode_audio(enc, audio_out, size_out,
370 (short *)buftmp);
371 av_write_frame(s, ost->index, audio_out, ret);
372 }
373 }
374
375 /* write a picture to a raw mux */
376 static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
377 int pix_fmt, int w, int h)
378 {
379 UINT8 *buf, *src, *dest;
380 int size, j, i;
381
382 /* XXX: not efficient, should add test if we can take
383 directly the AVPicture */
384 switch(pix_fmt) {
385 case PIX_FMT_YUV420P:
386 size = avpicture_get_size(pix_fmt, w, h);
387 buf = av_malloc(size);
388 if (!buf)
389 return;
390 dest = buf;
391 for(i=0;i<3;i++) {
392 if (i == 1) {
393 w >>= 1;
394 h >>= 1;
395 }
396 src = picture->data[i];
397 for(j=0;j<h;j++) {
398 memcpy(dest, src, w);
399 dest += w;
400 src += picture->linesize[i];
401 }
402 }
403 break;
404 case PIX_FMT_YUV422P:
405 size = (w * h) * 2;
406 buf = av_malloc(size);
407 if (!buf)
408 return;
409 dest = buf;
410 for(i=0;i<3;i++) {
411 if (i == 1) {
412 w >>= 1;
413 }
414 src = picture->data[i];
415 for(j=0;j<h;j++) {
416 memcpy(dest, src, w);
417 dest += w;
418 src += picture->linesize[i];
419 }
420 }
421 break;
422 case PIX_FMT_YUV444P:
423 size = (w * h) * 3;
424 buf = av_malloc(size);
425 if (!buf)
426 return;
427 dest = buf;
428 for(i=0;i<3;i++) {
429 src = picture->data[i];
430 for(j=0;j<h;j++) {
431 memcpy(dest, src, w);
432 dest += w;
433 src += picture->linesize[i];
434 }
435 }
436 break;
437 case PIX_FMT_YUV422:
438 size = (w * h) * 2;
439 buf = av_malloc(size);
440 if (!buf)
441 return;
442 dest = buf;
443 src = picture->data[0];
444 for(j=0;j<h;j++) {
445 memcpy(dest, src, w * 2);
446 dest += w * 2;
447 src += picture->linesize[0];
448 }
449 break;
450 case PIX_FMT_RGB24:
451 case PIX_FMT_BGR24:
452 size = (w * h) * 3;
453 buf = av_malloc(size);
454 if (!buf)
455 return;
456 dest = buf;
457 src = picture->data[0];
458 for(j=0;j<h;j++) {
459 memcpy(dest, src, w * 3);
460 dest += w * 3;
461 src += picture->linesize[0];
462 }
463 break;
464 default:
465 return;
466 }
467 av_write_frame(s, index, buf, size);
468 av_free(buf);
469 }
470
471 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
472 {
473 AVCodecContext *dec;
474 AVPicture *picture2;
475 AVPicture picture_tmp;
476 UINT8 *buf = 0;
477
478 dec = &ist->st->codec;
479
480 /* deinterlace : must be done before any resize */
481 if (do_deinterlace) {
482 int size;
483
484 /* create temporary picture */
485 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
486 buf = av_malloc(size);
487 if (!buf)
488 return;
489
490 picture2 = &picture_tmp;
491 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
492
493 if (avpicture_deinterlace(picture2, picture,
494 dec->pix_fmt, dec->width, dec->height) < 0) {
495 /* if error, do not deinterlace */
496 av_free(buf);
497 buf = NULL;
498 picture2 = picture;
499 }
500 } else {
501 picture2 = picture;
502 }
503
504 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
505
506 if (picture != picture2)
507 *picture = *picture2;
508 *bufp = buf;
509 }
510
511 /* we begin to correct av delay at this threshold */
512 #define AV_DELAY_MAX 0.100
513
514 static void do_video_out(AVFormatContext *s,
515 AVOutputStream *ost,
516 AVInputStream *ist,
517 AVPicture *in_picture,
518 int *frame_size, AVOutputStream *audio_sync)
519 {
520 int nb_frames, i, ret;
521 AVPicture *final_picture, *formatted_picture;
522 AVPicture picture_format_temp, picture_crop_temp;
523 static UINT8 *video_buffer;
524 UINT8 *buf = NULL, *buf1 = NULL;
525 AVCodecContext *enc, *dec;
526
527 #define VIDEO_BUFFER_SIZE (1024*1024)
528
529 enc = &ost->st->codec;
530 dec = &ist->st->codec;
531
532 /* by default, we output a single frame */
533 nb_frames = 1;
534
535 /* NOTE: the A/V sync is always done by considering the audio is
536 the master clock. It is suffisant for transcoding or playing,
537 but not for the general case */
538 if (audio_sync) {
539 /* compute the A-V delay and duplicate/remove frames if needed */
540 double adelta, vdelta, apts, vpts, av_delay;
541
542 if (audio_sync->sync_ipts != AV_NOPTS_VALUE &&
543 ost->sync_ipts != AV_NOPTS_VALUE) {
544
545 adelta = (double)(ost->st->pts.val - audio_sync->sync_opts) *
546 s->pts_num / s->pts_den;
547 apts = audio_sync->sync_ipts + adelta;
548
549 vdelta = (double)(ost->st->pts.val - ost->sync_opts) *
550 s->pts_num / s->pts_den;
551 vpts = ost->sync_ipts + vdelta;
552
553 av_delay = apts - vpts;
554 // printf("delay=%f\n", av_delay);
555 if (av_delay < -AV_DELAY_MAX)
556 nb_frames = 2;
557 else if (av_delay > AV_DELAY_MAX)
558 nb_frames = 0;
559 }
560 } else {
561 double vdelta;
562
563 if (ost->sync_ipts != AV_NOPTS_VALUE) {
564 vdelta = (double)(ost->st->pts.val) * s->pts_num / s->pts_den - (ost->sync_ipts - ost->sync_ipts_offset);
565 if (vdelta < 100 && vdelta > -100 && ost->sync_ipts_offset) {
566 if (vdelta < -AV_DELAY_MAX)
567 nb_frames = 2;
568 else if (vdelta > AV_DELAY_MAX)
569 nb_frames = 0;
570 } else {
571 ost->sync_ipts_offset -= vdelta;
572 if (!ost->sync_ipts_offset)
573 ost->sync_ipts_offset = 0.000001; /* one microsecond */
574 }
575
576 #if defined(PJSG)
577 {
578 static char *action[] = { "drop frame", "copy frame", "dup frame" };
579 printf("Input PTS %12.6f, output PTS %12.6f: %s\n",
580 (double) ost->sync_ipts, (double) ost->st->pts.val * s->pts_num / s->pts_den,
581 action[nb_frames]);
582 }
583 #endif
584 }
585 }
586 if (nb_frames <= 0)
587 return;
588
589 if (!video_buffer)
590 video_buffer = av_malloc(VIDEO_BUFFER_SIZE);
591 if (!video_buffer)
592 return;
593
594 /* convert pixel format if needed */
595 if (enc->pix_fmt != dec->pix_fmt) {
596 int size;
597
598 /* create temporary picture */
599 size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height);
600 buf = av_malloc(size);
601 if (!buf)
602 return;
603 formatted_picture = &picture_format_temp;
604 avpicture_fill(formatted_picture, buf, enc->pix_fmt, dec->width, dec->height);
605
606 if (img_convert(formatted_picture, enc->pix_fmt,
607 in_picture, dec->pix_fmt,
608 dec->width, dec->height) < 0) {
609 fprintf(stderr, "pixel format conversion not handled\n");
610 goto the_end;
611 }
612 } else {
613 formatted_picture = in_picture;
614 }
615
616 /* XXX: resampling could be done before raw format convertion in
617 some cases to go faster */
618 /* XXX: only works for YUV420P */
619 if (ost->video_resample) {
620 final_picture = &ost->pict_tmp;
621 img_resample(ost->img_resample_ctx, final_picture, formatted_picture);
622 } else if (ost->video_crop) {
623 picture_crop_temp.data[0] = formatted_picture->data[0] +
624 (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;
625
626 picture_crop_temp.data[1] = formatted_picture->data[1] +
627 ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
628 (ost->leftBand >> 1);
629
630 picture_crop_temp.data[2] = formatted_picture->data[2] +
631 ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
632 (ost->leftBand >> 1);
633
634 picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
635 picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
636 picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
637 final_picture = &picture_crop_temp;
638 } else {
639 final_picture = formatted_picture;
640 }
641 /* duplicates frame if needed */
642 /* XXX: pb because no interleaving */
643 for(i=0;i<nb_frames;i++) {
644 if (enc->codec_id != CODEC_ID_RAWVIDEO) {
645 AVFrame big_picture;
646
647 memset(&big_picture, 0, sizeof(AVFrame));
648 *(AVPicture*)&big_picture= *final_picture;
649
650 /* handles sameq here. This is not correct because it may
651 not be a global option */
652 if (same_quality) {
653 big_picture.quality = ist->st->quality;
654 }else
655 big_picture.quality = ost->st->quality;
656
657 ret = avcodec_encode_video(enc,
658 video_buffer, VIDEO_BUFFER_SIZE,
659 &big_picture);
660 //enc->frame_number = enc->real_pict_num;
661 av_write_frame(s, ost->index, video_buffer, ret);
662 *frame_size = ret;
663 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
664 // enc->frame_number-1, enc->real_pict_num, ret,
665 // enc->pict_type);
666 /* if two pass, output log */
667 if (ost->logfile && enc->stats_out) {
668 fprintf(ost->logfile, "%s", enc->stats_out);
669 }
670 } else {
671 if (s->oformat->flags & AVFMT_RAWPICTURE) {
672 /* raw pictures are written as AVPicture structure to
673 avoid any copies. We support temorarily the older
674 method. */
675 av_write_frame(s, ost->index,
676 (UINT8 *)final_picture, sizeof(AVPicture));
677 } else {
678 write_picture(s, ost->index, final_picture, enc->pix_fmt,
679 enc->width, enc->height);
680 }
681 }
682 ost->frame_number++;
683 }
684 the_end:
685 av_free(buf);
686 av_free(buf1);
687 }
688
689 static double psnr(double d){
690 if(d==0) return INFINITY;
691 return -10.0*log(d)/log(10);
692 }
693
694 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
695 int frame_size)
696 {
697 static FILE *fvstats=NULL;
698 static INT64 total_size = 0;
699 char filename[40];
700 time_t today2;
701 struct tm *today;
702 AVCodecContext *enc;
703 int frame_number;
704 INT64 ti;
705 double ti1, bitrate, avg_bitrate;
706
707 if (!fvstats) {
708 today2 = time(NULL);
709 today = localtime(&today2);
710 sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
711 today->tm_min,
712 today->tm_sec);
713 fvstats = fopen(filename,"w");
714 if (!fvstats) {
715 perror("fopen");
716 exit(1);
717 }
718 }
719
720 ti = MAXINT64;
721 enc = &ost->st->codec;
722 total_size += frame_size;
723 if (enc->codec_type == CODEC_TYPE_VIDEO) {
724 frame_number = ost->frame_number;
725 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality);
726 if (enc->flags&CODEC_FLAG_PSNR)
727 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
728
729 fprintf(fvstats,"f_size= %6d ", frame_size);
730 /* compute pts value */
731 ti1 = (double)ost->st->pts.val * os->pts_num / os->pts_den;
732 if (ti1 < 0.01)
733 ti1 = 0.01;
734
735 bitrate = (double)(frame_size * 8) * enc->frame_rate / FRAME_RATE_BASE / 1000.0;
736 avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
737 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
738 (double)total_size / 1024, ti1, bitrate, avg_bitrate);
739 fprintf(fvstats,"type= %s\n", enc->coded_frame->key_frame == 1 ? "I" : "P");
740 }
741 }
742
743 void print_report(AVFormatContext **output_files,
744 AVOutputStream **ost_table, int nb_ostreams,
745 int is_last_report)
746 {
747 char buf[1024];
748 AVOutputStream *ost;
749 AVFormatContext *oc, *os;
750 INT64 total_size;
751 AVCodecContext *enc;
752 int frame_number, vid, i;
753 double bitrate, ti1, pts;
754 static INT64 last_time = -1;
755
756 if (!is_last_report) {
757 INT64 cur_time;
758 /* display the report every 0.5 seconds */
759 cur_time = av_gettime();
760 if (last_time == -1) {
761 last_time = cur_time;
762 return;
763 }
764 if ((cur_time - last_time) < 500000)
765 return;
766 last_time = cur_time;
767 }
768
769
770 oc = output_files[0];
771
772 total_size = url_ftell(&oc->pb);
773
774 buf[0] = '\0';
775 ti1 = 1e10;
776 vid = 0;
777 for(i=0;i<nb_ostreams;i++) {
778 ost = ost_table[i];
779 os = output_files[ost->file_index];
780 enc = &ost->st->codec;
781 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
782 sprintf(buf + strlen(buf), "q=%2.1f ",
783 enc->coded_frame->quality);
784 }
785 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
786 frame_number = ost->frame_number;
787 sprintf(buf + strlen(buf), "frame=%5d q=%2.1f ",
788 frame_number, enc->coded_frame ? enc->coded_frame->quality : 0);
789 if (enc->flags&CODEC_FLAG_PSNR)
790 sprintf(buf + strlen(buf), "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
791 vid = 1;
792 }
793 /* compute min output value */
794 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
795 if ((pts < ti1) && (pts > 0))
796 ti1 = pts;
797 }
798 if (ti1 < 0.01)
799 ti1 = 0.01;
800 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
801
802 sprintf(buf + strlen(buf),
803 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
804 (double)total_size / 1024, ti1, bitrate);
805
806 fprintf(stderr, "%s ", buf);
807
808 if (is_last_report) {
809 fprintf(stderr, "\n");
810 } else {
811 fprintf(stderr, "\r");
812 fflush(stderr);
813 }
814 }
815
816 /*
817 * The following code is the main loop of the file converter
818 */
819 static int av_encode(AVFormatContext **output_files,
820 int nb_output_files,
821 AVFormatContext **input_files,
822 int nb_input_files,
823 AVStreamMap *stream_maps, int nb_stream_maps)
824 {
825 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0, pts_set;
826 AVFormatContext *is, *os;
827 AVCodecContext *codec, *icodec;
828 AVOutputStream *ost, **ost_table = NULL;
829 AVInputStream *ist, **ist_table = NULL;
830 AVInputFile *file_table;
831 AVFormatContext *stream_no_data;
832 int key;
833
834 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
835 if (!file_table)
836 goto fail;
837
838 /* input stream init */
839 j = 0;
840 for(i=0;i<nb_input_files;i++) {
841 is = input_files[i];
842 file_table[i].ist_index = j;
843 file_table[i].nb_streams = is->nb_streams;
844 j += is->nb_streams;
845 }
846 nb_istreams = j;
847
848 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
849 if (!ist_table)
850 goto fail;
851
852 for(i=0;i<nb_istreams;i++) {
853 ist = av_mallocz(sizeof(AVInputStream));
854 if (!ist)
855 goto fail;
856 ist_table[i] = ist;
857 }
858 j = 0;
859 for(i=0;i<nb_input_files;i++) {
860 is = input_files[i];
861 for(k=0;k<is->nb_streams;k++) {
862 ist = ist_table[j++];
863 ist->st = is->streams[k];
864 ist->file_index = i;
865 ist->index = k;
866 ist->discard = 1; /* the stream is discarded by default
867 (changed later) */
868 }
869 }
870
871 /* output stream init */
872 nb_ostreams = 0;
873 for(i=0;i<nb_output_files;i++) {
874 os = output_files[i];
875 nb_ostreams += os->nb_streams;
876 }
877 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
878 fprintf(stderr, "Number of stream maps must match number of output streams\n");
879 exit(1);
880 }
881
882 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
883 if (!ost_table)
884 goto fail;
885 for(i=0;i<nb_ostreams;i++) {
886 ost = av_mallocz(sizeof(AVOutputStream));
887 if (!ost)
888 goto fail;
889 ost_table[i] = ost;
890 }
891
892 n = 0;
893 for(k=0;k<nb_output_files;k++) {
894 os = output_files[k];
895 for(i=0;i<os->nb_streams;i++) {
896 int found;
897 ost = ost_table[n++];
898 ost->file_index = k;
899 ost->index = i;
900 ost->st = os->streams[i];
901 if (nb_stream_maps > 0) {
902 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
903 stream_maps[n-1].stream_index;
904 } else {
905 /* get corresponding input stream index : we select the first one with the right type */
906 found = 0;
907 for(j=0;j<nb_istreams;j++) {
908 ist = ist_table[j];
909 if (ist->discard &&
910 ist->st->codec.codec_type == ost->st->codec.codec_type) {
911 ost->source_index = j;
912 found = 1;
913 }
914 }
915
916 if (!found) {
917 /* try again and reuse existing stream */
918 for(j=0;j<nb_istreams;j++) {
919 ist = ist_table[j];
920 if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
921 ost->source_index = j;
922 found = 1;
923 }
924 }
925 if (!found) {
926 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
927 ost->file_index, ost->index);
928 exit(1);
929 }
930 }
931 }
932 ist = ist_table[ost->source_index];
933 ist->discard = 0;
934 }
935 }
936
937 /* for each output stream, we compute the right encoding parameters */
938 for(i=0;i<nb_ostreams;i++) {
939 ost = ost_table[i];
940 ist = ist_table[ost->source_index];
941
942 codec = &ost->st->codec;
943 icodec = &ist->st->codec;
944
945 if (ost->st->stream_copy) {
946 /* if stream_copy is selected, no need to decode or encode */
947 codec->codec_id = icodec->codec_id;
948 codec->codec_type = icodec->codec_type;
949 codec->codec_tag = icodec->codec_tag;
950 codec->bit_rate = icodec->bit_rate;
951 switch(codec->codec_type) {
952 case CODEC_TYPE_AUDIO:
953 codec->sample_rate = icodec->sample_rate;
954 codec->channels = icodec->channels;
955 break;
956 case CODEC_TYPE_VIDEO:
957 codec->frame_rate = icodec->frame_rate;
958 codec->width = icodec->width;
959 codec->height = icodec->height;
960 break;
961 default:
962 av_abort();
963 }
964 } else {
965 switch(codec->codec_type) {
966 case CODEC_TYPE_AUDIO:
967 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
968 goto fail;
969
970 if (codec->channels == icodec->channels &&
971 codec->sample_rate == icodec->sample_rate) {
972 ost->audio_resample = 0;
973 } else {
974 if (codec->channels != icodec->channels &&
975 icodec->codec_id == CODEC_ID_AC3) {
976 /* Special case for 5:1 AC3 input */
977 /* and mono or stereo output */
978 /* Request specific number of channels */
979 icodec->channels = codec->channels;
980 if (codec->sample_rate == icodec->sample_rate)
981 ost->audio_resample = 0;
982 else {
983 ost->audio_resample = 1;
984 ost->resample = audio_resample_init(codec->channels, icodec->channels,
985 codec->sample_rate,
986 icodec->sample_rate);
987 }
988 /* Request specific number of channels */
989 icodec->channels = codec->channels;
990 } else {
991 ost->audio_resample = 1;
992 ost->resample = audio_resample_init(codec->channels, icodec->channels,
993 codec->sample_rate,
994 icodec->sample_rate);
995 }
996 }
997 ist->decoding_needed = 1;
998 ost->encoding_needed = 1;
999 break;
1000 case CODEC_TYPE_VIDEO:
1001 if (codec->width == icodec->width &&
1002 codec->height == icodec->height &&
1003 frame_topBand == 0 &&
1004 frame_bottomBand == 0 &&
1005 frame_leftBand == 0 &&
1006 frame_rightBand == 0)
1007 {
1008 ost->video_resample = 0;
1009 ost->video_crop = 0;
1010 } else if ((codec->width == icodec->width -
1011 (frame_leftBand + frame_rightBand)) &&
1012 (codec->height == icodec->height -
1013 (frame_topBand + frame_bottomBand)))
1014 {
1015 ost->video_resample = 0;
1016 ost->video_crop = 1;
1017 ost->topBand = frame_topBand;
1018 ost->leftBand = frame_leftBand;
1019 } else {
1020 UINT8 *buf;
1021 ost->video_resample = 1;
1022 ost->video_crop = 0; // cropping is handled as part of resample
1023 buf = av_malloc((codec->width * codec->height * 3) / 2);
1024 if (!buf)
1025 goto fail;
1026 ost->pict_tmp.data[0] = buf;
1027 ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height);
1028 ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4;
1029 ost->pict_tmp.linesize[0] = codec->width;
1030 ost->pict_tmp.linesize[1] = codec->width / 2;
1031 ost->pict_tmp.linesize[2] = codec->width / 2;
1032
1033 ost->img_resample_ctx = img_resample_full_init(
1034 ost->st->codec.width, ost->st->codec.height,
1035 ist->st->codec.width, ist->st->codec.height,
1036 frame_topBand, frame_bottomBand,
1037 frame_leftBand, frame_rightBand);
1038 }
1039 ost->encoding_needed = 1;
1040 ist->decoding_needed = 1;
1041 break;
1042 default:
1043 av_abort();
1044 }
1045 /* two pass mode */
1046 if (ost->encoding_needed &&
1047 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1048 char logfilename[1024];
1049 FILE *f;
1050 int size;
1051 char *logbuffer;
1052
1053 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1054 pass_logfilename ?
1055 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1056 if (codec->flags & CODEC_FLAG_PASS1) {
1057 f = fopen(logfilename, "w");
1058 if (!f) {
1059 perror(logfilename);
1060 exit(1);
1061 }
1062 ost->logfile = f;
1063 } else {
1064 /* read the log file */
1065 f = fopen(logfilename, "r");
1066 if (!f) {
1067 perror(logfilename);
1068 exit(1);
1069 }
1070 fseek(f, 0, SEEK_END);
1071 size = ftell(f);
1072 fseek(f, 0, SEEK_SET);
1073 logbuffer = av_malloc(size + 1);
1074 if (!logbuffer) {
1075 fprintf(stderr, "Could not allocate log buffer\n");
1076 exit(1);
1077 }
1078 fread(logbuffer, 1, size, f);
1079 fclose(f);
1080 logbuffer[size] = '\0';
1081 codec->stats_in = logbuffer;
1082 }
1083 }
1084 }
1085 }
1086
1087 /* dump the file output parameters - cannot be done before in case
1088 of stream copy */
1089 for(i=0;i<nb_output_files;i++) {
1090 dump_format(output_files[i], i, output_files[i]->filename, 1);
1091 }
1092
1093 /* dump the stream mapping */
1094 fprintf(stderr, "Stream mapping:\n");
1095 for(i=0;i<nb_ostreams;i++) {
1096 ost = ost_table[i];
1097 fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
1098 ist_table[ost->source_index]->file_index,
1099 ist_table[ost->source_index]->index,
1100 ost->file_index,
1101 ost->index);
1102 }
1103
1104 /* open each encoder */
1105 for(i=0;i<nb_ostreams;i++) {
1106 ost = ost_table[i];
1107 if (ost->encoding_needed) {
1108 AVCodec *codec;
1109 codec = avcodec_find_encoder(ost->st->codec.codec_id);
1110 if (!codec) {
1111 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1112 ost->file_index, ost->index);
1113 exit(1);
1114 }
1115 if (avcodec_open(&ost->st->codec, codec) < 0) {
1116 fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1117 ost->file_index, ost->index);
1118 exit(1);
1119 }
1120 }
1121 }
1122
1123 /* open each decoder */
1124 for(i=0;i<nb_istreams;i++) {
1125 ist = ist_table[i];
1126 if (ist->decoding_needed) {
1127 AVCodec *codec;
1128 codec = avcodec_find_decoder(ist->st->codec.codec_id);
1129 if (!codec) {
1130 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1131 ist->st->codec.codec_id, ist->file_index, ist->index);
1132 exit(1);
1133 }
1134 if (avcodec_open(&ist->st->codec, codec) < 0) {
1135 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1136 ist->file_index, ist->index);
1137 exit(1);
1138 }
1139 //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
1140 // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
1141 ist->frame_decoded = 1;
1142 }
1143 }
1144
1145 /* init pts */
1146 for(i=0;i<nb_istreams;i++) {
1147 ist = ist_table[i];
1148 }
1149
1150 /* compute buffer size max (should use a complete heuristic) */
1151 for(i=0;i<nb_input_files;i++) {
1152 file_table[i].buffer_size_max = 2048;
1153 }
1154
1155 /* open files and write file headers */
1156 for(i=0;i<nb_output_files;i++) {
1157 os = output_files[i];
1158 if (av_write_header(os) < 0) {
1159 fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
1160 ret = -EINVAL;
1161 goto fail;
1162 }
1163 }
1164
1165 #ifndef CONFIG_WIN32
1166 if (!do_play) {
1167 fprintf(stderr, "Press [q] to stop encoding\n");
1168 } else {
1169 fprintf(stderr, "Press [q] to stop playing\n");
1170 }
1171 #endif
1172 term_init();
1173
1174 stream_no_data = 0;
1175 key = -1;
1176
1177 for(;;) {
1178 int file_index, ist_index;
1179 AVPacket pkt;
1180 UINT8 *ptr;
1181 int len;
1182 UINT8 *data_buf;
1183 int data_size, got_picture;
1184 AVPicture picture;
1185 short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
1186 void *buffer_to_free;
1187 double pts_min;
1188
1189 redo:
1190 /* if 'q' pressed, exits */
1191 if (key) {
1192 /* read_key() returns 0 on EOF */
1193 key = read_key();
1194 if (key == 'q')
1195 break;
1196 }
1197
1198 /* select the stream that we must read now by looking at the
1199 smallest output pts */
1200 file_index = -1;
1201 pts_min = 1e10;
1202 for(i=0;i<nb_ostreams;i++) {
1203 double pts;
1204 ost = ost_table[i];
1205 os = output_files[ost->file_index];
1206 ist = ist_table[ost->source_index];
1207 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
1208 if (!file_table[ist->file_index].eof_reached &&
1209 pts < pts_min) {
1210 pts_min = pts;
1211 file_index = ist->file_index;
1212 }
1213 }
1214 /* if none, if is finished */
1215 if (file_index < 0) {
1216 break;
1217 }
1218
1219 /* finish if recording time exhausted */
1220 if (recording_time > 0 && pts_min >= (recording_time / 1000000.0))
1221 break;
1222
1223 /* read a packet from it and output it in the fifo */
1224 is = input_files[file_index];
1225 if (av_read_packet(is, &pkt) < 0) {
1226 file_table[file_index].eof_reached = 1;
1227 continue;
1228 }
1229 if (!pkt.size) {
1230 stream_no_data = is;
1231 } else {
1232 stream_no_data = 0;
1233 }
1234 if (do_hex_dump) {
1235 printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size);
1236 av_hex_dump(pkt.data, pkt.size);
1237 }
1238 /* the following test is needed in case new streams appear
1239 dynamically in stream : we ignore them */
1240 if (pkt.stream_index >= file_table[file_index].nb_streams)
1241 goto discard_packet;
1242 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1243 ist = ist_table[ist_index];
1244 if (ist->discard)
1245 goto discard_packet;
1246
1247 // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1248
1249 len = pkt.size;
1250 ptr = pkt.data;
1251 pts_set = 0;
1252 while (len > 0) {
1253 INT64 ipts;
1254
1255 ipts = AV_NOPTS_VALUE;
1256
1257 /* decode the packet if needed */
1258 data_buf = NULL; /* fail safe */
1259 data_size = 0;
1260 if (ist->decoding_needed) {
1261 /* NOTE1: we only take into account the PTS if a new
1262 frame has begun (MPEG semantics) */
1263 /* NOTE2: even if the fraction is not initialized,
1264 av_frac_set can be used to set the integer part */
1265 if (ist->frame_decoded &&
1266 pkt.pts != AV_NOPTS_VALUE &&
1267 !pts_set) {
1268 ipts = pkt.pts;
1269 ist->frame_decoded = 0;
1270 pts_set = 1;
1271 }
1272
1273 switch(ist->st->codec.codec_type) {
1274 case CODEC_TYPE_AUDIO:
1275 /* XXX: could avoid copy if PCM 16 bits with same
1276 endianness as CPU */
1277 ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
1278 ptr, len);
1279 if (ret < 0)
1280 goto fail_decode;
1281 /* Some bug in mpeg audio decoder gives */
1282 /* data_size < 0, it seems they are overflows */
1283 if (data_size <= 0) {
1284 /* no audio frame */
1285 ptr += ret;
1286 len -= ret;
1287 continue;
1288 }
1289 data_buf = (UINT8 *)samples;
1290 break;
1291 case CODEC_TYPE_VIDEO:
1292 if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) {
1293 int size;
1294
1295 size = (ist->st->codec.width * ist->st->codec.height);
1296 avpicture_fill(&picture, ptr,
1297 ist->st->codec.pix_fmt,
1298 ist->st->codec.width,
1299 ist->st->codec.height);
1300 ret = len;
1301 } else {
1302 AVFrame big_picture;
1303
1304 data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
1305 ret = avcodec_decode_video(&ist->st->codec,
1306 &big_picture, &got_picture, ptr, len);
1307 picture= *(AVPicture*)&big_picture;
1308 ist->st->quality= big_picture.quality;
1309 if (ret < 0) {
1310 fail_decode:
1311 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1312 ist->file_index, ist->index);
1313 av_free_packet(&pkt);
1314 goto redo;
1315 }
1316 if (!got_picture) {
1317 /* no picture yet */
1318 ptr += ret;
1319 len -= ret;
1320 continue;
1321 }
1322
1323 }
1324 break;
1325 default:
1326 goto fail_decode;
1327 }
1328 } else {
1329 data_buf = ptr;
1330 data_size = len;
1331 ret = len;
1332 }
1333 ptr += ret;
1334 len -= ret;
1335
1336 buffer_to_free = 0;
1337 if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
1338 pre_process_video_frame(ist, &picture, &buffer_to_free);
1339 }
1340
1341 ist->frame_decoded = 1;
1342
1343 #if 0
1344 /* mpeg PTS deordering : if it is a P or I frame, the PTS
1345 is the one of the next displayed one */
1346 /* XXX: add mpeg4 too ? */
1347 if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) {
1348 if (ist->st->codec.pict_type != B_TYPE) {
1349 INT64 tmp;
1350 tmp = ist->last_ip_pts;
1351 ist->last_ip_pts = ist->frac_pts.val;
1352 ist->frac_pts.val = tmp;
1353 }
1354 }
1355 #endif
1356 /* transcode raw format, encode packets and output them */
1357
1358 for(i=0;i<nb_ostreams;i++) {
1359 int frame_size;
1360
1361 ost = ost_table[i];
1362 if (ost->source_index == ist_index) {
1363 os = output_files[ost->file_index];
1364
1365 if (ipts != AV_NOPTS_VALUE) {
1366 #if 0
1367 printf("%d: got pts=%f %f\n",
1368 i, pkt.pts / 90000.0,
1369 (ipts - ost->st->pts.val) / 90000.0);
1370 #endif
1371 /* set the input output pts pairs */
1372 ost->sync_ipts = (double)ipts * is->pts_num /
1373 is->pts_den;
1374 /* XXX: take into account the various fifos,
1375 in particular for audio */
1376 ost->sync_opts = ost->st->pts.val;
1377 //printf("ipts=%lld sync_ipts=%f sync_opts=%lld pts.val=%lld pkt.pts=%lld\n", ipts, ost->sync_ipts, ost->sync_opts, ost->st->pts.val, pkt.pts);
1378 } else {
1379 //printf("pts.val=%lld\n", ost->st->pts.val);
1380 ost->sync_ipts = AV_NOPTS_VALUE;
1381 }
1382
1383 if (ost->encoding_needed) {
1384 switch(ost->st->codec.codec_type) {
1385 case CODEC_TYPE_AUDIO:
1386 do_audio_out(os, ost, ist, data_buf, data_size);
1387 break;
1388 case CODEC_TYPE_VIDEO:
1389 /* find an audio stream for synchro */
1390 {
1391 int i;
1392 AVOutputStream *audio_sync, *ost1;
1393 audio_sync = NULL;
1394 for(i=0;i<nb_ostreams;i++) {
1395 ost1 = ost_table[i];
1396 if (ost1->file_index == ost->file_index &&
1397 ost1->st->codec.codec_type == CODEC_TYPE_AUDIO) {
1398 audio_sync = ost1;
1399 break;
1400 }
1401 }
1402
1403 do_video_out(os, ost, ist, &picture, &frame_size, audio_sync);
1404 if (do_vstats)
1405 do_video_stats(os, ost, frame_size);
1406 }
1407 break;
1408 default:
1409 av_abort();
1410 }
1411 } else {
1412 AVFrame avframe;
1413
1414 /* no reencoding needed : output the packet directly */
1415 /* force the input stream PTS */
1416
1417 //XXX/FIXME set keyframe flag from demuxer (or optionally from decoder)
1418 memset(&avframe, 0, sizeof(AVFrame));
1419 ost->st->codec.coded_frame= &avframe;
1420
1421 av_write_frame(os, ost->index, data_buf, data_size);
1422 ost->st->codec.frame_number++;
1423 ost->frame_number++;
1424 }
1425 }
1426 }
1427 av_free(buffer_to_free);
1428 ipts = AV_NOPTS_VALUE;
1429 }
1430 discard_packet:
1431 av_free_packet(&pkt);
1432
1433 /* dump report by using the output first video and audio streams */
1434 print_report(output_files, ost_table, nb_ostreams, 0);
1435 }
1436 term_exit();
1437
1438 /* dump report by using the first video and audio streams */
1439 print_report(output_files, ost_table, nb_ostreams, 1);
1440
1441 /* close each encoder */
1442 for(i=0;i<nb_ostreams;i++) {
1443 ost = ost_table[i];
1444 if (ost->encoding_needed) {
1445 av_freep(&ost->st->codec.stats_in);
1446 avcodec_close(&ost->st->codec);
1447 }
1448 }
1449
1450 /* close each decoder */
1451 for(i=0;i<nb_istreams;i++) {
1452 ist = ist_table[i];
1453 if (ist->decoding_needed) {
1454 avcodec_close(&ist->st->codec);
1455 }
1456 }
1457
1458
1459 /* write the trailer if needed and close file */
1460 for(i=0;i<nb_output_files;i++) {
1461 os = output_files[i];
1462 av_write_trailer(os);
1463 }
1464 /* finished ! */
1465
1466 ret = 0;
1467 fail1:
1468 av_free(file_table);
1469
1470 if (ist_table) {
1471 for(i=0;i<nb_istreams;i++) {
1472 ist = ist_table[i];
1473 av_free(ist);
1474 }
1475 av_free(ist_table);
1476 }
1477 if (ost_table) {
1478 for(i=0;i<nb_ostreams;i++) {
1479 ost = ost_table[i];
1480 if (ost) {
1481 if (ost->logfile) {
1482 fclose(ost->logfile);
1483 ost->logfile = NULL;
1484 }
1485 fifo_free(&ost->fifo); /* works even if fifo is not
1486 initialized but set to zero */
1487 av_free(ost->pict_tmp.data[0]);
1488 if (ost->video_resample)
1489 img_resample_close(ost->img_resample_ctx);
1490 if (ost->audio_resample)
1491 audio_resample_close(ost->resample);
1492 av_free(ost);
1493 }
1494 }
1495 av_free(ost_table);
1496 }
1497 return ret;
1498 fail:
1499 ret = -ENOMEM;
1500 goto fail1;
1501 }
1502
1503 #if 0
1504 int file_read(const char *filename)
1505 {
1506 URLContext *h;
1507 unsigned char buffer[1024];
1508 int len, i;
1509
1510 if (url_open(&h, filename, O_RDONLY) < 0) {
1511 printf("could not open '%s'\n", filename);
1512 return -1;
1513 }
1514 for(;;) {
1515 len = url_read(h, buffer, sizeof(buffer));
1516 if (len <= 0)
1517 break;
1518 for(i=0;i<len;i++) putchar(buffer[i]);
1519 }
1520 url_close(h);
1521 return 0;
1522 }
1523 #endif
1524
1525 void show_licence(void)
1526 {
1527 printf(
1528 "ffmpeg version " FFMPEG_VERSION "\n"
1529 "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
1530 "This library is free software; you can redistribute it and/or\n"
1531 "modify it under the terms of the GNU Lesser General Public\n"
1532 "License as published by the Free Software Foundation; either\n"
1533 "version 2 of the License, or (at your option) any later version.\n"
1534 "\n"
1535 "This library is distributed in the hope that it will be useful,\n"
1536 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1537 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1538 "Lesser General Public License for more details.\n"
1539 "\n"
1540 "You should have received a copy of the GNU Lesser General Public\n"
1541 "License along with this library; if not, write to the Free Software\n"
1542 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
1543 );
1544 exit(1);
1545 }
1546
1547 void opt_image_format(const char *arg)
1548 {
1549 AVImageFormat *f;
1550
1551 for(f = first_image_format; f != NULL; f = f->next) {
1552 if (!strcmp(arg, f->name))
1553 break;
1554 }
1555 if (!f) {
1556 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1557 exit(1);
1558 }
1559 image_format = f;
1560 }
1561
1562 void opt_format(const char *arg)
1563 {
1564 /* compatibility stuff for pgmyuv */
1565 if (!strcmp(arg, "pgmyuv")) {
1566 opt_image_format(arg);
1567 arg = "image";
1568 }
1569
1570 file_iformat = av_find_input_format(arg);
1571 file_oformat = guess_format(arg, NULL, NULL);
1572 if (!file_iformat && !file_oformat) {
1573 fprintf(stderr, "Unknown input or output format: %s\n", arg);
1574 exit(1);
1575 }
1576 }
1577
1578 void opt_video_bitrate(const char *arg)
1579 {
1580 video_bit_rate = atoi(arg) * 1000;
1581 }
1582
1583 void opt_video_bitrate_tolerance(const char *arg)
1584 {
1585 video_bit_rate_tolerance = atoi(arg) * 1000;
1586 }
1587
1588 void opt_video_bitrate_max(const char *arg)
1589 {
1590 video_rc_max_rate = atoi(arg) * 1000;
1591 }
1592
1593 void opt_video_bitrate_min(const char *arg)
1594 {
1595 video_rc_min_rate = atoi(arg) * 1000;
1596 }
1597
1598 void opt_video_buffer_size(const char *arg)
1599 {
1600 video_rc_buffer_size = atoi(arg) * 1000;
1601 }
1602
1603 void opt_video_rc_eq(char *arg)
1604 {
1605 video_rc_eq = arg;
1606 }
1607
1608 void opt_video_rc_override_string(char *arg)
1609 {
1610 video_rc_override_string = arg;
1611 }
1612
1613
1614 void opt_workaround_bugs(const char *arg)
1615 {
1616 workaround_bugs = atoi(arg);
1617 }
1618
1619 void opt_dct_algo(const char *arg)
1620 {
1621 dct_algo = atoi(arg);
1622 }
1623
1624 void opt_idct_algo(const char *arg)
1625 {
1626 idct_algo = atoi(arg);
1627 }
1628
1629
1630 void opt_error_resilience(const char *arg)
1631 {
1632 error_resilience = atoi(arg);
1633 }
1634
1635 void opt_error_concealment(const char *arg)
1636 {
1637 error_concealment = atoi(arg);
1638 }
1639
1640 void opt_debug(const char *arg)
1641 {
1642 debug = atoi(arg);
1643 }
1644
1645 void opt_frame_rate(const char *arg)
1646 {
1647 frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE);
1648 }
1649
1650
1651 void opt_frame_crop_top(const char *arg)
1652 {
1653 frame_topBand = atoi(arg);
1654 if (frame_topBand < 0) {
1655 fprintf(stderr, "Incorrect top crop size\n");
1656 exit(1);
1657 }
1658 if ((frame_topBand % 2) != 0) {
1659 fprintf(stderr, "Top crop size must be a multiple of 2\n");
1660 exit(1);
1661 }
1662 if ((frame_topBand) >= frame_height){
1663 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1664 exit(1);
1665 }
1666 frame_height -= frame_topBand;
1667 }
1668
1669 void opt_frame_crop_bottom(const char *arg)
1670 {
1671 frame_bottomBand = atoi(arg);
1672 if (frame_bottomBand < 0) {
1673 fprintf(stderr, "Incorrect bottom crop size\n");
1674 exit(1);
1675 }
1676 if ((frame_bottomBand % 2) != 0) {
1677 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
1678 exit(1);
1679 }
1680 if ((frame_bottomBand) >= frame_height){
1681 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1682 exit(1);
1683 }
1684 frame_height -= frame_bottomBand;
1685 }
1686
1687 void opt_frame_crop_left(const char *arg)
1688 {
1689 frame_leftBand = atoi(arg);
1690 if (frame_leftBand < 0) {
1691 fprintf(stderr, "Incorrect left crop size\n");
1692 exit(1);
1693 }
1694 if ((frame_leftBand % 2) != 0) {
1695 fprintf(stderr, "Left crop size must be a multiple of 2\n");
1696 exit(1);
1697 }
1698 if ((frame_leftBand) >= frame_width){
1699 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1700 exit(1);
1701 }
1702 frame_width -= frame_leftBand;
1703 }
1704
1705 void opt_frame_crop_right(const char *arg)
1706 {
1707 frame_rightBand = atoi(arg);
1708 if (frame_rightBand < 0) {
1709 fprintf(stderr, "Incorrect right crop size\n");
1710 exit(1);
1711 }
1712 if ((frame_rightBand % 2) != 0) {
1713 fprintf(stderr, "Right crop size must be a multiple of 2\n");
1714 exit(1);
1715 }
1716 if ((frame_rightBand) >= frame_width){
1717 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1718 exit(1);
1719 }
1720 frame_width -= frame_rightBand;
1721 }
1722
1723 void opt_frame_size(const char *arg)
1724 {
1725 parse_image_size(&frame_width, &frame_height, arg);
1726 if (frame_width <= 0 || frame_height <= 0) {
1727 fprintf(stderr, "Incorrect frame size\n");
1728 exit(1);
1729 }
1730 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1731 fprintf(stderr, "Frame size must be a multiple of 2\n");
1732 exit(1);
1733 }
1734 }
1735
1736 void opt_gop_size(const char *arg)
1737 {
1738 gop_size = atoi(arg);
1739 }
1740
1741 void opt_b_frames(const char *arg)
1742 {
1743 b_frames = atoi(arg);
1744 if (b_frames > FF_MAX_B_FRAMES) {
1745 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1746 exit(1);
1747 } else if (b_frames < 1) {
1748 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1749 exit(1);
1750 }
1751 }
1752
1753 void opt_qscale(const char *arg)
1754 {
1755 video_qscale = atoi(arg);
1756 if (video_qscale < 0 ||
1757 video_qscale > 31) {
1758 fprintf(stderr, "qscale must be >= 1 and <= 31\n");
1759 exit(1);
1760 }
1761 }
1762
1763 void opt_qmin(const char *arg)
1764 {
1765 video_qmin = atoi(arg);
1766 if (video_qmin < 0 ||
1767 video_qmin > 31) {
1768 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1769 exit(1);
1770 }
1771 }
1772
1773 void opt_qmax(const char *arg)
1774 {
1775 video_qmax = atoi(arg);
1776 if (video_qmax < 0 ||
1777 video_qmax > 31) {
1778 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1779 exit(1);
1780 }
1781 }
1782
1783 void opt_mb_qmin(const char *arg)
1784 {
1785 video_mb_qmin = atoi(arg);
1786 if (video_mb_qmin < 0 ||
1787 video_mb_qmin > 31) {
1788 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1789 exit(1);
1790 }
1791 }
1792
1793 void opt_mb_qmax(const char *arg)
1794 {
1795 video_mb_qmax = atoi(arg);
1796 if (video_mb_qmax < 0 ||
1797 video_mb_qmax > 31) {
1798 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1799 exit(1);
1800 }
1801 }
1802
1803 void opt_qdiff(const char *arg)
1804 {
1805 video_qdiff = atoi(arg);
1806 if (video_qdiff < 0 ||
1807 video_qdiff > 31) {
1808 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1809 exit(1);
1810 }
1811 }
1812
1813 void opt_qblur(const char *arg)
1814 {
1815 video_qblur = atof(arg);
1816 }
1817
1818 void opt_qcomp(const char *arg)
1819 {
1820 video_qcomp = atof(arg);
1821 }
1822
1823 void opt_rc_initial_cplx(const char *arg)
1824 {
1825 video_rc_initial_cplx = atof(arg);
1826 }
1827 void opt_b_qfactor(const char *arg)
1828 {
1829 video_b_qfactor = atof(arg);
1830 }
1831 void opt_i_qfactor(const char *arg)
1832 {
1833 video_i_qfactor = atof(arg);
1834 }
1835 void opt_b_qoffset(const char *arg)
1836 {
1837 video_b_qoffset = atof(arg);
1838 }
1839 void opt_i_qoffset(const char *arg)
1840 {
1841 video_i_qoffset = atof(arg);
1842 }
1843
1844 void opt_packet_size(const char *arg)
1845 {
1846 packet_size= atoi(arg);
1847 }
1848
1849 void opt_strict(const char *arg)
1850 {
1851 strict= atoi(arg);
1852 }
1853
1854 void opt_audio_bitrate(const char *arg)
1855 {
1856 audio_bit_rate = atoi(arg) * 1000;
1857 }
1858
1859 void opt_audio_rate(const char *arg)
1860 {
1861 audio_sample_rate = atoi(arg);
1862 }
1863
1864 void opt_audio_channels(const char *arg)
1865 {
1866 audio_channels = atoi(arg);
1867 }
1868
1869 void opt_video_device(const char *arg)
1870 {
1871 v4l_device = strdup(arg);
1872 }
1873
1874 void opt_audio_device(const char *arg)
1875 {
1876 audio_device = strdup(arg);
1877 }
1878
1879 void opt_audio_codec(const char *arg)
1880 {
1881 AVCodec *p;
1882
1883 if (!strcmp(arg, "copy")) {
1884 audio_stream_copy = 1;
1885 } else {
1886 p = first_avcodec;
1887 while (p) {
1888 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1889 break;
1890 p = p->next;
1891 }
1892 if (p == NULL) {
1893 fprintf(stderr, "Unknown audio codec '%s'\n", arg);
1894 exit(1);
1895 } else {
1896 audio_codec_id = p->id;
1897 }
1898 }
1899 }
1900
1901 void add_frame_hooker(const char *arg)
1902 {
1903 int argc = 0;
1904 char *argv[64];
1905 int i;
1906 char *args = strdup(arg);
1907
1908 argv[0] = strtok(args, " ");
1909 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
1910 }
1911
1912 i = frame_hook_add(argc, argv);
1913
1914 if (i != 0) {
1915 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
1916 exit(1);
1917 }
1918 }
1919
1920 const char *motion_str[] = {
1921 "zero",
1922 "full",
1923 "log",
1924 "phods",
1925 "epzs",
1926 "x1",
1927 NULL,
1928 };
1929
1930 void opt_motion_estimation(const char *arg)
1931 {
1932 const char **p;
1933 p = motion_str;
1934 for(;;) {
1935 if (!*p) {
1936 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
1937 exit(1);
1938 }
1939 if (!strcmp(*p, arg))
1940 break;
1941 p++;
1942 }
1943 me_method = (p - motion_str) + 1;
1944 }
1945
1946 void opt_video_codec(const char *arg)
1947 {
1948 AVCodec *p;
1949
1950 if (!strcmp(arg, "copy")) {
1951 video_stream_copy = 1;
1952 } else {
1953 p = first_avcodec;
1954 while (p) {
1955 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1956 break;
1957 p = p->next;
1958 }
1959 if (p == NULL) {
1960 fprintf(stderr, "Unknown video codec '%s'\n", arg);
1961 exit(1);
1962 } else {
1963 video_codec_id = p->id;
1964 }
1965 }
1966 }
1967
1968 void opt_map(const char *arg)
1969 {
1970 AVStreamMap *m;
1971 const char *p;
1972
1973 p = arg;
1974 m = &stream_maps[nb_stream_maps++];
1975
1976 m->file_index = strtol(arg, (char **)&p, 0);
1977 if (*p)
1978 p++;
1979
1980 m->stream_index = strtol(p, (char **)&p, 0);
1981 }
1982
1983 void opt_recording_time(const char *arg)
1984 {
1985 recording_time = parse_date(arg, 1);
1986 }
1987
1988 void print_error(const char *filename, int err)
1989 {
1990 switch(err) {
1991 case AVERROR_NUMEXPECTED:
1992 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
1993 "Use '%%d' to specify the image number:\n"
1994 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
1995 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
1996 filename);
1997 break;
1998 case AVERROR_INVALIDDATA:
1999 fprintf(stderr, "%s: Error while parsing header\n", filename);
2000 break;
2001 case AVERROR_NOFMT:
2002 fprintf(stderr, "%s: Unknown format\n", filename);
2003 break;
2004 default:
2005 fprintf(stderr, "%s: Error while opening file\n", filename);
2006 break;
2007 }
2008 }
2009
2010 void opt_input_file(const char *filename)
2011 {
2012 AVFormatContext *ic;
2013 AVFormatParameters params, *ap = &params;
2014 int err, i, ret, rfps;
2015
2016 if (!strcmp(filename, "-"))
2017 filename = "pipe:";
2018
2019 /* get default parameters from command line */
2020 memset(ap, 0, sizeof(*ap));
2021 ap->sample_rate = audio_sample_rate;
2022 ap->channels = audio_channels;
2023 ap->frame_rate = frame_rate;
2024 ap->width = frame_width;
2025 ap->height = frame_height;
2026 ap->image_format = image_format;
2027
2028 /* open the input file with generic libav function */
2029 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2030 if (err < 0) {
2031 print_error(filename, err);
2032 exit(1);
2033 }
2034
2035 /* If not enough info to get the stream parameters, we decode the
2036 first frames to get it. (used in mpeg case for example) */
2037 ret = av_find_stream_info(ic);
2038 if (ret < 0) {
2039 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2040 exit(1);
2041 }
2042
2043 /* update the current parameters so that they match the one of the input stream */
2044 for(i=0;i<ic->nb_streams;i++) {
2045 AVCodecContext *enc = &ic->streams[i]->codec;
2046 switch(enc->codec_type) {
2047 case CODEC_TYPE_AUDIO:
2048 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2049 audio_channels = enc->channels;
2050 audio_sample_rate = enc->sample_rate;
2051 break;
2052 case CODEC_TYPE_VIDEO:
2053 frame_height = enc->height;
2054 frame_width = enc->width;
2055 rfps = ic->streams[i]->r_frame_rate;
2056 enc->workaround_bugs = workaround_bugs;
2057 enc->error_resilience = error_resilience;
2058 enc->error_concealment = error_concealment;
2059 enc->idct_algo= idct_algo;
2060 enc->debug= debug;
2061 /* if(enc->codec->capabilities & CODEC_CAP_TRUNCATED)
2062 enc->flags|= CODEC_FLAG_TRUNCATED; */
2063 if(/*enc->codec_id==CODEC_ID_MPEG4 || */enc->codec_id==CODEC_ID_MPEG1VIDEO)
2064 enc->flags|= CODEC_FLAG_TRUNCATED;
2065
2066 if (enc->frame_rate != rfps) {
2067 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
2068 i, (float)enc->frame_rate / FRAME_RATE_BASE,
2069 (float)rfps / FRAME_RATE_BASE);
2070 }
2071 /* update the current frame rate to match the stream frame rate */
2072 frame_rate = rfps;
2073 break;
2074 default:
2075 av_abort();
2076 }
2077 }
2078
2079 input_files[nb_input_files] = ic;
2080 /* dump the file content */
2081 dump_format(ic, nb_input_files, filename, 0);
2082 nb_input_files++;
2083 file_iformat = NULL;
2084 file_oformat = NULL;
2085 image_format = NULL;
2086 }
2087
2088 void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2089 {
2090 int has_video, has_audio, i, j;
2091 AVFormatContext *ic;
2092
2093 has_video = 0;
2094 has_audio = 0;
2095 for(j=0;j<nb_input_files;j++) {
2096 ic = input_files[j];
2097 for(i=0;i<ic->nb_streams;i++) {
2098 AVCodecContext *enc = &ic->streams[i]->codec;
2099 switch(enc->codec_type) {
2100 case CODEC_TYPE_AUDIO:
2101 has_audio = 1;
2102 break;
2103 case CODEC_TYPE_VIDEO:
2104 has_video = 1;
2105 break;
2106 default:
2107 av_abort();
2108 }
2109 }
2110 }
2111 *has_video_ptr = has_video;
2112 *has_audio_ptr = has_audio;
2113 }
2114
2115 void opt_output_file(const char *filename)
2116 {
2117 AVStream *st;
2118 AVFormatContext *oc;
2119 int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
2120 int codec_id;
2121 AVFormatParameters params, *ap = &params;
2122
2123 if (!strcmp(filename, "-"))
2124 filename = "pipe:";
2125
2126 oc = av_mallocz(sizeof(AVFormatContext));
2127
2128 if (!file_oformat) {
2129 file_oformat = guess_format(NULL, filename, NULL);
2130 if (!file_oformat) {
2131 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
2132 filename);
2133 exit(1);
2134 }
2135 }
2136
2137 oc->oformat = file_oformat;
2138
2139 if (!strcmp(file_oformat->name, "ffm") &&
2140 strstart(filename, "http:", NULL)) {
2141 /* special case for files sent to ffserver: we get the stream
2142 parameters from ffserver */
2143 if (read_ffserver_streams(oc, filename) < 0) {
2144 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
2145 exit(1);
2146 }
2147 } else {
2148 use_video = file_oformat->video_codec != CODEC_ID_NONE;
2149 use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
2150
2151 /* disable if no corresponding type found and at least one
2152 input file */
2153 if (nb_input_files > 0) {
2154 check_audio_video_inputs(&input_has_video, &input_has_audio);
2155 if (!input_has_video)
2156 use_video = 0;
2157 if (!input_has_audio)
2158 use_audio = 0;
2159 }
2160
2161 /* manual disable */
2162 if (audio_disable) {
2163 use_audio = 0;
2164 }
2165 if (video_disable) {
2166 use_video = 0;
2167 }
2168
2169 nb_streams = 0;
2170 if (use_video) {
2171 AVCodecContext *video_enc;
2172
2173 st = av_mallocz(sizeof(AVStream));
2174 if (!st) {
2175 fprintf(stderr, "Could not alloc stream\n");
2176 exit(1);
2177 }
2178 avcodec_get_context_defaults(&st->codec);
2179
2180 video_enc = &st->codec;
2181 if (video_stream_copy) {
2182 st->stream_copy = 1;
2183 video_enc->codec_type = CODEC_TYPE_VIDEO;
2184 } else {
2185 char *p;
2186 int i;
2187
2188 codec_id = file_oformat->video_codec;
2189 if (video_codec_id != CODEC_ID_NONE)
2190 codec_id = video_codec_id;
2191
2192 video_enc->codec_id = codec_id;
2193
2194 video_enc->bit_rate = video_bit_rate;
2195 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
2196 video_enc->frame_rate = frame_rate;
2197
2198 video_enc->width = frame_width;
2199 video_enc->height = frame_height;
2200
2201 if (!intra_only)
2202 video_enc->gop_size = gop_size;
2203 else
2204 video_enc->gop_size = 0;
2205 if (video_qscale || same_quality) {
2206 video_enc->flags |= CODEC_FLAG_QSCALE;
2207 st->quality = video_qscale;
2208 }
2209
2210 if (use_hq) {
2211 video_enc->flags |= CODEC_FLAG_HQ;
2212 }
2213
2214 if (use_4mv) {
2215 video_enc->flags |= CODEC_FLAG_HQ;
2216 video_enc->flags |= CODEC_FLAG_4MV;
2217 }
2218
2219 if(use_part)
2220 video_enc->flags |= CODEC_FLAG_PART;
2221
2222
2223 if (b_frames) {
2224 if (codec_id != CODEC_ID_MPEG4) {
2225 fprintf(stderr, "\nB frames encoding only supported by MPEG-4.\n");
2226 exit(1);
2227 }
2228 video_enc->max_b_frames = b_frames;
2229 video_enc->b_frame_strategy = 0;
2230 video_enc->b_quant_factor = 2.0;
2231 }
2232
2233 video_enc->qmin = video_qmin;
2234 video_enc->qmax = video_qmax;
2235 video_enc->mb_qmin = video_mb_qmin;
2236 video_enc->mb_qmax = video_mb_qmax;
2237 video_enc->max_qdiff = video_qdiff;
2238 video_enc->qblur = video_qblur;
2239 video_enc->qcompress = video_qcomp;
2240 video_enc->rc_eq = video_rc_eq;
2241 video_enc->debug= debug;
2242
2243 p= video_rc_override_string;
2244 for(i=0; p; i++){
2245 int start, end, q;
2246 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2247 if(e!=3){
2248 fprintf(stderr, "error parsing rc_override\n");
2249 exit(1);
2250 }
2251 video_enc->rc_override=
2252 realloc(video_enc->rc_override, sizeof(RcOverride)*(i+1));
2253 video_enc->rc_override[i].start_frame= start;
2254 video_enc->rc_override[i].end_frame = end;
2255 if(q>0){
2256 video_enc->rc_override[i].qscale= q;
2257 video_enc->rc_override[i].quality_factor= 1.0;
2258 }
2259 else{
2260 video_enc->rc_override[i].qscale= 0;
2261 video_enc->rc_override[i].quality_factor= -q/100.0;
2262 }
2263 p= strchr(p, '/');
2264 if(p) p++;
2265 }
2266 video_enc->rc_override_count=i;
2267
2268 video_enc->rc_max_rate = video_rc_max_rate;
2269 video_enc->rc_min_rate = video_rc_min_rate;
2270 video_enc->rc_buffer_size = video_rc_buffer_size;
2271 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
2272 video_enc->rc_initial_cplx= video_rc_initial_cplx;
2273 video_enc->i_quant_factor = video_i_qfactor;
2274 video_enc->b_quant_factor = video_b_qfactor;
2275 video_enc->i_quant_offset = video_i_qoffset;
2276 video_enc->b_quant_offset = video_b_qoffset;
2277 video_enc->dct_algo = dct_algo;
2278 video_enc->idct_algo = idct_algo;
2279 video_enc->strict_std_compliance = strict;
2280 if(packet_size){
2281 video_enc->rtp_mode= 1;
2282 video_enc->rtp_payload_size= packet_size;
2283 }
2284
2285 if (do_psnr)
2286 video_enc->flags|= CODEC_FLAG_PSNR;
2287
2288 video_enc->me_method = me_method;
2289
2290 /* two pass mode */
2291 if (do_pass) {
2292 if (do_pass == 1) {
2293 video_enc->flags |= CODEC_FLAG_PASS1;
2294 } else {
2295 video_enc->flags |= CODEC_FLAG_PASS2;
2296 }
2297 }
2298 }
2299 oc->streams[nb_streams] = st;
2300 nb_streams++;
2301 }
2302
2303 if (use_audio) {
2304 AVCodecContext *audio_enc;
2305
2306 st = av_mallocz(sizeof(AVStream));
2307 if (!st) {
2308 fprintf(stderr, "Could not alloc stream\n");
2309 exit(1);
2310 }
2311 avcodec_get_context_defaults(&st->codec);
2312
2313 audio_enc = &st->codec;
2314 audio_enc->codec_type = CODEC_TYPE_AUDIO;
2315 if (audio_stream_copy) {
2316 st->stream_copy = 1;
2317 } else {
2318 codec_id = file_oformat->audio_codec;
2319 if (audio_codec_id != CODEC_ID_NONE)
2320 codec_id = audio_codec_id;
2321 audio_enc->codec_id = codec_id;
2322
2323 audio_enc->bit_rate = audio_bit_rate;
2324 audio_enc->sample_rate = audio_sample_rate;
2325 /* For audio codecs other than AC3 we limit */
2326 /* the number of coded channels to stereo */
2327 if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
2328 audio_enc->channels = 2;
2329 } else
2330 audio_enc->channels = audio_channels;
2331 }
2332 oc->streams[nb_streams] = st;
2333 nb_streams++;
2334 }
2335
2336 oc->nb_streams = nb_streams;
2337
2338 if (!nb_streams) {
2339 fprintf(stderr, "No audio or video streams available\n");
2340 exit(1);
2341 }
2342
2343 if (str_title)
2344 pstrcpy(oc->title, sizeof(oc->title), str_title);
2345 if (str_author)
2346 pstrcpy(oc->author, sizeof(oc->author), str_author);
2347 if (str_copyright)
2348 pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
2349 if (str_comment)
2350 pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
2351 }
2352
2353 output_files[nb_output_files++] = oc;
2354
2355 strcpy(oc->filename, filename);
2356
2357 /* check filename in case of an image number is expected */
2358 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2359 if (filename_number_test(oc->filename) < 0) {
2360 print_error(oc->filename, AVERROR_NUMEXPECTED);
2361 exit(1);
2362 }
2363 }
2364
2365 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2366 /* test if it already exists to avoid loosing precious files */
2367 if (!file_overwrite &&
2368 (strchr(filename, ':') == NULL ||
2369 strstart(filename, "file:", NULL))) {
2370 if (url_exist(filename)) {
2371 int c;
2372
2373 printf("File '%s' already exists. Overwrite ? [y/N] ", filename);
2374 fflush(stdout);
2375 c = getchar();
2376 if (toupper(c) != 'Y') {
2377 fprintf(stderr, "Not overwriting - exiting\n");
2378 exit(1);
2379 }
2380 }
2381 }
2382
2383 /* open the file */
2384 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
2385 fprintf(stderr, "Could not open '%s'\n", filename);
2386 exit(1);
2387 }
2388 }
2389
2390 memset(ap, 0, sizeof(*ap));
2391 ap->image_format = image_format;
2392 if (av_set_parameters(oc, ap) < 0) {
2393 fprintf(stderr, "%s: Invalid encoding parameters\n",
2394 oc->filename);
2395 exit(1);
2396 }
2397
2398 /* reset some options */
2399 file_oformat = NULL;
2400 file_iformat = NULL;
2401 image_format = NULL;
2402 audio_disable = 0;
2403 video_disable = 0;
2404 audio_codec_id = CODEC_ID_NONE;
2405 video_codec_id = CODEC_ID_NONE;
2406 audio_stream_copy = 0;
2407 video_stream_copy = 0;
2408 }
2409
2410 /* prepare dummy protocols for grab */
2411 void prepare_grab(void)
2412 {
2413 int has_video, has_audio, i, j;
2414 AVFormatContext *oc;
2415 AVFormatContext *ic;
2416 AVFormatParameters ap1, *ap = &ap1;
2417
2418 /* see if audio/video inputs are needed */
2419 has_video = 0;
2420 has_audio = 0;
2421 memset(ap, 0, sizeof(*ap));
2422 for(j=0;j<nb_output_files;j++) {
2423 oc = output_files[j];
2424 for(i=0;i<oc->nb_streams;i++) {
2425 AVCodecContext *enc = &oc->streams[i]->codec;
2426 switch(enc->codec_type) {
2427 case CODEC_TYPE_AUDIO:
2428 if (enc->sample_rate > ap->sample_rate)
2429 ap->sample_rate = enc->sample_rate;
2430 if (enc->channels > ap->channels)
2431 ap->channels = enc->channels;
2432 has_audio = 1;
2433 break;
2434 case CODEC_TYPE_VIDEO:
2435 if (enc->width > ap->width)
2436 ap->width = enc->width;
2437 if (enc->height > ap->height)
2438 ap->height = enc->height;
2439 if (enc->frame_rate > ap->frame_rate)
2440 ap->frame_rate = enc->frame_rate;
2441 has_video = 1;
2442 break;
2443 default:
2444 av_abort();
2445 }
2446 }
2447 }
2448
2449 if (has_video == 0 && has_audio == 0) {
2450 fprintf(stderr, "Output file must have at least one audio or video stream\n");
2451 exit(1);
2452 }
2453
2454 if (has_video) {
2455 AVInputFormat *fmt1;
2456 fmt1 = av_find_input_format("video_grab_device");
2457 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2458 fprintf(stderr, "Could not find video grab device\n");
2459 exit(1);
2460 }
2461 /* by now video grab has one stream */
2462 ic->streams[0]->r_frame_rate = ap->frame_rate;
2463 input_files[nb_input_files] = ic;
2464 dump_format(ic, nb_input_files, v4l_device, 0);
2465 nb_input_files++;
2466 }
2467 if (has_audio) {
2468 AVInputFormat *fmt1;
2469 fmt1 = av_find_input_format("audio_device");
2470 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2471 fprintf(stderr, "Could not find audio grab device\n");
2472 exit(1);
2473 }
2474 input_files[nb_input_files] = ic;
2475 dump_format(ic, nb_input_files, audio_device, 0);
2476 nb_input_files++;
2477 }
2478 }
2479
2480 /* open the necessary output devices for playing */
2481 void prepare_play(void)
2482 {
2483 file_iformat = NULL;
2484 file_oformat = guess_format("audio_device", NULL, NULL);
2485 if (!file_oformat) {
2486 fprintf(stderr, "Could not find audio device\n");
2487 exit(1);
2488 }
2489
2490 opt_output_file(audio_device);
2491 }
2492
2493 /* same option as mencoder */
2494 void opt_pass(const char *pass_str)
2495 {
2496 int pass;
2497 pass = atoi(pass_str);
2498 if (pass != 1 && pass != 2) {
2499 fprintf(stderr, "pass number can be only 1 or 2\n");
2500 exit(1);
2501 }
2502 do_pass = pass;
2503 }
2504
2505 #if defined(CONFIG_WIN32) || defined(CONFIG_OS2)
2506 INT64 getutime(void)
2507 {
2508 return av_gettime();
2509 }
2510 #else
2511 INT64 getutime(void)
2512 {
2513 struct rusage rusage;
2514
2515 getrusage(RUSAGE_SELF, &rusage);
2516 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2517 }
2518 #endif
2519
2520 extern int ffm_nopts;
2521
2522 void opt_bitexact(void)
2523 {
2524 avcodec_set_bit_exact();
2525 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2526 ffm_nopts = 1;
2527 }
2528
2529 void show_formats(void)
2530 {
2531 AVInputFormat *ifmt;
2532 AVOutputFormat *ofmt;
2533 AVImageFormat *image_fmt;
2534 URLProtocol *up;
2535 AVCodec *p;
2536 const char **pp;
2537
2538 printf("Output audio/video file formats:");
2539 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2540 printf(" %s", ofmt->name);
2541 }
2542 printf("\n");
2543
2544 printf("Input audio/video file formats:");
2545 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2546 printf(" %s", ifmt->name);
2547 }
2548 printf("\n");
2549
2550 printf("Output image formats:");
2551 for(image_fmt = first_image_format; image_fmt != NULL;
2552 image_fmt = image_fmt->next) {
2553 if (image_fmt->img_write)
2554 printf(" %s", image_fmt->name);
2555 }
2556 printf("\n");
2557
2558 printf("Input image formats:");
2559 for(image_fmt = first_image_format; image_fmt != NULL;
2560 image_fmt = image_fmt->next) {
2561 if (image_fmt->img_read)
2562 printf(" %s", image_fmt->name);
2563 }
2564 printf("\n");
2565
2566 printf("Codecs:\n");
2567 printf(" Encoders:");
2568 for(p = first_avcodec; p != NULL; p = p->next) {
2569 if (p->encode)
2570 printf(" %s", p->name);
2571 }
2572 printf("\n");
2573
2574 printf(" Decoders:");
2575 for(p = first_avcodec; p != NULL; p = p->next) {
2576 if (p->decode)
2577 printf(" %s", p->name);
2578 }
2579 printf("\n");
2580
2581 printf("Supported file protocols:");
2582 for(up = first_protocol; up != NULL; up = up->next)
2583 printf(" %s:", up->name);
2584 printf("\n");
2585
2586 printf("Frame size abbreviations: sqcif qcif cif 4cif\n");
2587 printf("Motion estimation methods:");
2588 pp = motion_str;
2589 while (*pp) {
2590 printf(" %s", *pp);
2591 if ((pp - motion_str + 1) == ME_ZERO)
2592 printf("(fastest)");
2593 else if ((pp - motion_str + 1) == ME_FULL)
2594 printf("(slowest)");
2595 else if ((pp - motion_str + 1) == ME_EPZS)
2596 printf("(default)");
2597 pp++;
2598 }
2599 printf("\n");
2600 exit(1);
2601 }
2602
2603 void show_help(void)
2604 {
2605 const char *prog;
2606 const OptionDef *po;
2607 int i, expert;
2608
2609 prog = do_play ? "ffplay" : "ffmpeg";
2610
2611 printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n",
2612 prog);
2613
2614 if (!do_play) {
2615 printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
2616 "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n");
2617 } else {
2618 printf("usage: ffplay [options] input_file...\n"
2619 "Simple audio player\n");
2620 }
2621
2622 printf("\n"
2623 "Main options are:\n");
2624 for(i=0;i<2;i++) {
2625 if (i == 1)
2626 printf("\nAdvanced options are:\n");
2627 for(po = options; po->name != NULL; po++) {
2628 char buf[64];
2629 expert = (po->flags & OPT_EXPERT) != 0;
2630 if (expert == i) {
2631 strcpy(buf, po->name);
2632 if (po->flags & HAS_ARG) {
2633 strcat(buf, " ");
2634 strcat(buf, po->argname);
2635 }
2636 printf("-%-17s %s\n", buf, po->help);
2637 }
2638 }
2639 }
2640
2641 exit(1);
2642 }
2643
2644 const OptionDef options[] = {
2645 { "L", 0, {(void*)show_licence}, "show license" },
2646 { "h", 0, {(void*)show_help}, "show help" },
2647 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
2648 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
2649 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
2650 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
2651 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
2652 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
2653 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
2654 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
2655 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
2656 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
2657 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
2658 { "pass", HAS_ARG, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
2659 { "passlogfile", HAS_ARG | OPT_STRING, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
2660 /* video options */
2661 { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
2662 { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" },
2663 { "em_rate", OPT_BOOL|OPT_EXPERT, {(void*)&emulate_frame_rate}, "makes img reading happen at nominal frame rate" },
2664 { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
2665 { "croptop", HAS_ARG, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
2666 { "cropbottom", HAS_ARG, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
2667 { "cropleft", HAS_ARG, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
2668 { "cropright", HAS_ARG, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
2669 { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
2670 { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"},
2671 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
2672 { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
2673 { "qmin", HAS_ARG | OPT_EXPERT, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
2674 { "qmax", HAS_ARG | OPT_EXPERT, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
2675 { "mbqmin", HAS_ARG | OPT_EXPERT, {(void*)opt_mb_qmin}, "min macroblock quantiser scale (VBR)", "q" },
2676 { "mbqmax", HAS_ARG | OPT_EXPERT, {(void*)opt_mb_qmax}, "max macroblock quantiser scale (VBR)", "q" },
2677 { "qdiff", HAS_ARG | OPT_EXPERT, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
2678 { "qblur", HAS_ARG | OPT_EXPERT, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
2679 { "qcomp", HAS_ARG | OPT_EXPERT, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
2680 { "rc_init_cplx", HAS_ARG | OPT_EXPERT, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" },
2681 { "b_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
2682 { "i_qfactor", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
2683 { "b_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
2684 { "i_qoffset", HAS_ARG | OPT_EXPERT, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
2685 // { "b_strategy", HAS_ARG | OPT_EXPERT, {(void*)opt_b_strategy}, "dynamic b frame selection strategy", "strategy" },
2686 { "rc_eq", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_eq}, "", "equation" },
2687 { "rc_override", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_override_string}, "Rate control override", "qualities for specific intervals" },
2688 { "bt", HAS_ARG, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
2689 { "maxrate", HAS_ARG, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
2690 { "minrate", HAS_ARG, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
2691 { "bufsize", HAS_ARG, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kbit)", "size" },
2692 { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video grab device", "device" },
2693 { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
2694 { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method",
2695 "method" },
2696 { "dct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_dct_algo}, "set dct algo", "algo" },
2697 { "idct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_idct_algo}, "set idct algo", "algo" },
2698 { "er", HAS_ARG | OPT_EXPERT, {(void*)opt_error_resilience}, "set error resilience", "" },
2699 { "ec", HAS_ARG | OPT_EXPERT, {(void*)opt_error_concealment}, "set error concealment", "" },
2700 { "bf", HAS_ARG | OPT_EXPERT, {(void*)opt_b_frames}, "use 'frames' B frames (only MPEG-4)", "frames" },
2701 { "hq", OPT_BOOL | OPT_EXPERT, {(void*)&use_hq}, "activate high quality settings" },
2702 { "4mv", OPT_BOOL | OPT_EXPERT, {(void*)&use_4mv}, "use four motion vector by macroblock (only MPEG-4)" },
2703 { "part", OPT_BOOL | OPT_EXPERT, {(void*)&use_part}, "use data partitioning (only MPEG-4)" },
2704 { "bug", HAS_ARG | OPT_EXPERT, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
2705 { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "packet size", "size in bits" },
2706 { "strict", HAS_ARG | OPT_EXPERT, {(void*)opt_strict}, "strictness", "how strictly to follow the standarts" },
2707 { "sameq", OPT_BOOL, {(void*)&same_quality},
2708 "use same video quality as source (implies VBR)" },
2709 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
2710 /* audio options */
2711 { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
2712 { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
2713 { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
2714 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
2715 { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" },
2716 { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
2717 { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace},
2718 "deinterlace pictures" },
2719 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
2720 "add timings for benchmarking" },
2721 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
2722 "dump each input packet" },
2723 { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
2724 { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" },
2725 { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" },
2726 { "vhook", HAS_ARG | OPT_EXPERT, {(void*)add_frame_hooker}, "insert video processing module", "module name and parameters" },
2727 { NULL, },
2728 };
2729
2730 int main(int argc, char **argv)
2731 {
2732 int optindex, i;
2733 const char *opt, *arg;
2734 const OptionDef *po;
2735 INT64 ti;
2736
2737 av_register_all();
2738
2739 /* detect if invoked as player */
2740 i = strlen(argv[0]);
2741 if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay"))
2742 do_play = 1;
2743
2744 if (argc <= 1)
2745 show_help();
2746
2747 /* parse options */
2748 optindex = 1;
2749 while (optindex < argc) {
2750 opt = argv[optindex++];
2751
2752 if (opt[0] == '-' && opt[1] != '\0') {
2753 po = options;
2754 while (po->name != NULL) {
2755 if (!strcmp(opt + 1, po->name))
2756 break;
2757 po++;
2758 }
2759 if (!po->name) {
2760 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
2761 exit(1);
2762 }
2763 arg = NULL;
2764 if (po->flags & HAS_ARG) {
2765 arg = argv[optindex++];
2766 if (!arg) {
2767 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
2768 exit(1);
2769 }
2770 }
2771 if (po->flags & OPT_STRING) {
2772 char *str;
2773 str = strdup(arg);
2774 *po->u.str_arg = str;
2775 } else if (po->flags & OPT_BOOL) {
2776 *po->u.int_arg = 1;
2777 } else {
2778 po->u.func_arg(arg);
2779 }
2780 } else {
2781 if (!do_play) {
2782 opt_output_file(opt);
2783 } else {
2784 opt_input_file(opt);
2785 }
2786 }
2787 }
2788
2789
2790 if (!do_play) {
2791 /* file converter / grab */
2792 if (nb_output_files <= 0) {
2793 fprintf(stderr, "Must supply at least one output file\n");
2794 exit(1);
2795 }
2796
2797 if (nb_input_files == 0) {
2798 prepare_grab();
2799 }
2800 } else {
2801 /* player */
2802 if (nb_input_files <= 0) {
2803 fprintf(stderr, "Must supply at least one input file\n");
2804 exit(1);
2805 }
2806 prepare_play();
2807 }
2808
2809 ti = getutime();
2810 av_encode(output_files, nb_output_files, input_files, nb_input_files,
2811 stream_maps, nb_stream_maps);
2812 ti = getutime() - ti;
2813 if (do_benchmark) {
2814 printf("bench: utime=%0.3fs\n", ti / 1000000.0);
2815 }
2816
2817 /* close files */
2818 for(i=0;i<nb_output_files;i++) {
2819 /* maybe av_close_output_file ??? */
2820 AVFormatContext *s = output_files[i];
2821 int j;
2822 if (!(s->oformat->flags & AVFMT_NOFILE))
2823 url_fclose(&s->pb);
2824 for(j=0;j<s->nb_streams;j++)
2825 av_free(s->streams[j]);
2826 av_free(s);
2827 }
2828 for(i=0;i<nb_input_files;i++)
2829 av_close_input_file(input_files[i]);
2830
2831 av_free_static();
2832 return 0;
2833 }