w32threads by (Gildas Bazin <gbazin at altern dot org>)
[libav.git] / ffmpeg.c
1 /*
2 * FFmpeg main
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 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 #include <signal.h>
31 #endif
32 #ifdef CONFIG_OS2
33 #include <sys/types.h>
34 #include <sys/select.h>
35 #include <stdlib.h>
36 #endif
37 #include <time.h>
38
39 #include "cmdutils.h"
40
41 #if !defined(INFINITY) && defined(HUGE_VAL)
42 #define INFINITY HUGE_VAL
43 #endif
44
45 /* select an input stream for an output stream */
46 typedef struct AVStreamMap {
47 int file_index;
48 int stream_index;
49 } AVStreamMap;
50
51 extern const OptionDef options[];
52
53 static void show_help(void);
54 static void show_license(void);
55
56 #define MAX_FILES 20
57
58 static AVFormatContext *input_files[MAX_FILES];
59 static int nb_input_files = 0;
60
61 static AVFormatContext *output_files[MAX_FILES];
62 static int nb_output_files = 0;
63
64 static AVStreamMap stream_maps[MAX_FILES];
65 static int nb_stream_maps;
66
67 static AVInputFormat *file_iformat;
68 static AVOutputFormat *file_oformat;
69 static AVImageFormat *image_format;
70 static int frame_width = 160;
71 static int frame_height = 128;
72 static float frame_aspect_ratio = 0;
73 static enum PixelFormat frame_pix_fmt = PIX_FMT_YUV420P;
74 static int frame_topBand = 0;
75 static int frame_bottomBand = 0;
76 static int frame_leftBand = 0;
77 static int frame_rightBand = 0;
78 static int frame_rate = 25;
79 static int frame_rate_base = 1;
80 static int video_bit_rate = 200*1000;
81 static int video_bit_rate_tolerance = 4000*1000;
82 static float video_qscale = 0;
83 static int video_qmin = 2;
84 static int video_qmax = 31;
85 static int video_mb_qmin = 2;
86 static int video_mb_qmax = 31;
87 static int video_qdiff = 3;
88 static float video_qblur = 0.5;
89 static float video_qcomp = 0.5;
90 static uint16_t *intra_matrix = NULL;
91 static uint16_t *inter_matrix = NULL;
92 #if 0 //experimental, (can be removed)
93 static float video_rc_qsquish=1.0;
94 static float video_rc_qmod_amp=0;
95 static int video_rc_qmod_freq=0;
96 #endif
97 static char *video_rc_override_string=NULL;
98 static char *video_rc_eq="tex^qComp";
99 static int video_rc_buffer_size=0;
100 static float video_rc_buffer_aggressivity=1.0;
101 static int video_rc_max_rate=0;
102 static int video_rc_min_rate=0;
103 static float video_rc_initial_cplx=0;
104 static float video_b_qfactor = 1.25;
105 static float video_b_qoffset = 1.25;
106 static float video_i_qfactor = -0.8;
107 static float video_i_qoffset = 0.0;
108 static int video_intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
109 static int video_inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
110 static int me_method = ME_EPZS;
111 static int video_disable = 0;
112 static int video_codec_id = CODEC_ID_NONE;
113 static int same_quality = 0;
114 static int b_frames = 0;
115 static int mb_decision = FF_MB_DECISION_SIMPLE;
116 static int ildct_cmp = FF_CMP_VSAD;
117 static int mb_cmp = FF_CMP_SAD;
118 static int sub_cmp = FF_CMP_SAD;
119 static int cmp = FF_CMP_SAD;
120 static int pre_cmp = FF_CMP_SAD;
121 static int pre_me = 0;
122 static float lumi_mask = 0;
123 static float dark_mask = 0;
124 static float scplx_mask = 0;
125 static float tcplx_mask = 0;
126 static float p_mask = 0;
127 static int use_4mv = 0;
128 static int use_obmc = 0;
129 static int use_aic = 0;
130 static int use_aiv = 0;
131 static int use_umv = 0;
132 static int use_alt_scan = 0;
133 static int use_trell = 0;
134 static int use_scan_offset = 0;
135 static int qns = 0;
136 static int closed_gop = 0;
137 static int do_deinterlace = 0;
138 static int do_interlace_dct = 0;
139 static int do_interlace_me = 0;
140 static int workaround_bugs = FF_BUG_AUTODETECT;
141 static int error_resilience = 2;
142 static int error_concealment = 3;
143 static int dct_algo = 0;
144 static int idct_algo = 0;
145 static int use_part = 0;
146 static int packet_size = 0;
147 static int error_rate = 0;
148 static int strict = 0;
149 static int top_field_first = -1;
150 static int noise_reduction = 0;
151 static int sc_threshold = 0;
152 static int debug = 0;
153 static int debug_mv = 0;
154 extern int loop_input; /* currently a hack */
155
156 static int gop_size = 12;
157 static int intra_only = 0;
158 static int audio_sample_rate = 44100;
159 static int audio_bit_rate = 64000;
160 static int audio_disable = 0;
161 static int audio_channels = 1;
162 static int audio_codec_id = CODEC_ID_NONE;
163
164 static int64_t recording_time = 0;
165 static int64_t start_time = 0;
166 static int file_overwrite = 0;
167 static char *str_title = NULL;
168 static char *str_author = NULL;
169 static char *str_copyright = NULL;
170 static char *str_comment = NULL;
171 static int do_benchmark = 0;
172 static int do_hex_dump = 0;
173 static int do_pkt_dump = 0;
174 static int do_psnr = 0;
175 static int do_vstats = 0;
176 static int do_pass = 0;
177 static int bitexact = 0;
178 static char *pass_logfilename = NULL;
179 static int audio_stream_copy = 0;
180 static int video_stream_copy = 0;
181
182 static int rate_emu = 0;
183
184 static char *video_grab_format = "video4linux";
185 static char *video_device = NULL;
186 static int video_channel = 0;
187 static char *video_standard = "ntsc";
188
189 static char *audio_grab_format = "audio_device";
190 static char *audio_device = NULL;
191
192 static int using_stdin = 0;
193 static int using_vhook = 0;
194 static int verbose = 1;
195 static int thread_count= 1;
196
197 #define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
198
199 typedef struct AVOutputStream {
200 int file_index; /* file index */
201 int index; /* stream index in the output file */
202 int source_index; /* AVInputStream index */
203 AVStream *st; /* stream in the output file */
204 int encoding_needed; /* true if encoding needed for this stream */
205 int frame_number;
206 /* input pts and corresponding output pts
207 for A/V sync */
208 double sync_ipts;
209 double sync_ipts_offset;
210 int64_t sync_opts;
211 /* video only */
212 int video_resample; /* video_resample and video_crop are mutually exclusive */
213 AVPicture pict_tmp; /* temporary image for resampling */
214 ImgReSampleContext *img_resample_ctx; /* for image resampling */
215
216 int video_crop; /* video_resample and video_crop are mutually exclusive */
217 int topBand; /* cropping area sizes */
218 int leftBand;
219
220 /* audio only */
221 int audio_resample;
222 ReSampleContext *resample; /* for audio resampling */
223 FifoBuffer fifo; /* for compression: one audio fifo per codec */
224 FILE *logfile;
225 } AVOutputStream;
226
227 typedef struct AVInputStream {
228 int file_index;
229 int index;
230 AVStream *st;
231 int discard; /* true if stream data should be discarded */
232 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
233 int64_t sample_index; /* current sample */
234
235 int64_t start; /* time when read started */
236 unsigned long frame; /* current frame */
237 int64_t next_pts; /* synthetic pts for cases where pkt.pts
238 is not defined */
239 int64_t pts; /* current pts */
240 } AVInputStream;
241
242 typedef struct AVInputFile {
243 int eof_reached; /* true if eof reached */
244 int ist_index; /* index of first stream in ist_table */
245 int buffer_size; /* current total buffer size */
246 int buffer_size_max; /* buffer size at which we consider we can stop
247 buffering */
248 int nb_streams; /* nb streams we are aware of */
249 } AVInputFile;
250
251 #ifndef CONFIG_WIN32
252
253 /* init terminal so that we can grab keys */
254 static struct termios oldtty;
255
256 static void term_exit(void)
257 {
258 tcsetattr (0, TCSANOW, &oldtty);
259 }
260
261 static volatile sig_atomic_t received_sigterm = 0;
262
263 static void
264 sigterm_handler(int sig)
265 {
266 received_sigterm = sig;
267 term_exit();
268 }
269
270 static void term_init(void)
271 {
272 struct termios tty;
273
274 tcgetattr (0, &tty);
275 oldtty = tty;
276
277 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
278 |INLCR|IGNCR|ICRNL|IXON);
279 tty.c_oflag |= OPOST;
280 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
281 tty.c_cflag &= ~(CSIZE|PARENB);
282 tty.c_cflag |= CS8;
283 tty.c_cc[VMIN] = 1;
284 tty.c_cc[VTIME] = 0;
285
286 tcsetattr (0, TCSANOW, &tty);
287
288 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
289 signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
290 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
291 /*
292 register a function to be called at normal program termination
293 */
294 atexit(term_exit);
295 #ifdef CONFIG_BEOS_NETSERVER
296 fcntl(0, F_SETFL, fcntl(0, F_GETFL) | O_NONBLOCK);
297 #endif
298 }
299
300 /* read a key without blocking */
301 static int read_key(void)
302 {
303 int n = 1;
304 unsigned char ch;
305 #ifndef CONFIG_BEOS_NETSERVER
306 struct timeval tv;
307 fd_set rfds;
308
309 FD_ZERO(&rfds);
310 FD_SET(0, &rfds);
311 tv.tv_sec = 0;
312 tv.tv_usec = 0;
313 n = select(1, &rfds, NULL, NULL, &tv);
314 #endif
315 if (n > 0) {
316 n = read(0, &ch, 1);
317 if (n == 1)
318 return ch;
319
320 return n;
321 }
322 return -1;
323 }
324
325 #else
326
327 static volatile int received_sigterm = 0;
328
329 /* no interactive support */
330 static void term_exit(void)
331 {
332 }
333
334 static void term_init(void)
335 {
336 }
337
338 static int read_key(void)
339 {
340 return 0;
341 }
342
343 #endif
344
345 static int read_ffserver_streams(AVFormatContext *s, const char *filename)
346 {
347 int i, err;
348 AVFormatContext *ic;
349
350 err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL);
351 if (err < 0)
352 return err;
353 /* copy stream format */
354 s->nb_streams = ic->nb_streams;
355 for(i=0;i<ic->nb_streams;i++) {
356 AVStream *st;
357
358 st = av_mallocz(sizeof(AVStream));
359 memcpy(st, ic->streams[i], sizeof(AVStream));
360 s->streams[i] = st;
361 }
362
363 av_close_input_file(ic);
364 return 0;
365 }
366
367 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
368
369 static void do_audio_out(AVFormatContext *s,
370 AVOutputStream *ost,
371 AVInputStream *ist,
372 unsigned char *buf, int size)
373 {
374 uint8_t *buftmp;
375 static uint8_t *audio_buf = NULL;
376 static uint8_t *audio_out = NULL;
377 const int audio_out_size= 4*MAX_AUDIO_PACKET_SIZE;
378
379 int size_out, frame_bytes, ret;
380 AVCodecContext *enc;
381
382 /* SC: dynamic allocation of buffers */
383 if (!audio_buf)
384 audio_buf = av_malloc(2*MAX_AUDIO_PACKET_SIZE);
385 if (!audio_out)
386 audio_out = av_malloc(audio_out_size);
387 if (!audio_buf || !audio_out)
388 return; /* Should signal an error ! */
389
390
391 enc = &ost->st->codec;
392
393 if (ost->audio_resample) {
394 buftmp = audio_buf;
395 size_out = audio_resample(ost->resample,
396 (short *)buftmp, (short *)buf,
397 size / (ist->st->codec.channels * 2));
398 size_out = size_out * enc->channels * 2;
399 } else {
400 buftmp = buf;
401 size_out = size;
402 }
403
404 /* now encode as many frames as possible */
405 if (enc->frame_size > 1) {
406 /* output resampled raw samples */
407 fifo_write(&ost->fifo, buftmp, size_out,
408 &ost->fifo.wptr);
409
410 frame_bytes = enc->frame_size * 2 * enc->channels;
411
412 while (fifo_read(&ost->fifo, audio_buf, frame_bytes,
413 &ost->fifo.rptr) == 0) {
414 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
415 (short *)audio_buf);
416 av_write_frame(s, ost->index, audio_out, ret);
417 }
418 } else {
419 /* output a pcm frame */
420 /* XXX: change encoding codec API to avoid this ? */
421 switch(enc->codec->id) {
422 case CODEC_ID_PCM_S16LE:
423 case CODEC_ID_PCM_S16BE:
424 case CODEC_ID_PCM_U16LE:
425 case CODEC_ID_PCM_U16BE:
426 break;
427 default:
428 size_out = size_out >> 1;
429 break;
430 }
431 ret = avcodec_encode_audio(enc, audio_out, size_out,
432 (short *)buftmp);
433 av_write_frame(s, ost->index, audio_out, ret);
434 }
435 }
436
437 static void pre_process_video_frame(AVInputStream *ist, AVPicture *picture, void **bufp)
438 {
439 AVCodecContext *dec;
440 AVPicture *picture2;
441 AVPicture picture_tmp;
442 uint8_t *buf = 0;
443
444 dec = &ist->st->codec;
445
446 /* deinterlace : must be done before any resize */
447 if (do_deinterlace || using_vhook) {
448 int size;
449
450 /* create temporary picture */
451 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
452 buf = av_malloc(size);
453 if (!buf)
454 return;
455
456 picture2 = &picture_tmp;
457 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
458
459 if (do_deinterlace){
460 if(avpicture_deinterlace(picture2, picture,
461 dec->pix_fmt, dec->width, dec->height) < 0) {
462 /* if error, do not deinterlace */
463 av_free(buf);
464 buf = NULL;
465 picture2 = picture;
466 }
467 } else {
468 if (img_convert(picture2, dec->pix_fmt, picture,
469 dec->pix_fmt, dec->width, dec->height) < 0) {
470 /* if error, do not copy */
471 av_free(buf);
472 buf = NULL;
473 picture2 = picture;
474 }
475 }
476 } else {
477 picture2 = picture;
478 }
479
480 frame_hook_process(picture2, dec->pix_fmt, dec->width, dec->height);
481
482 if (picture != picture2)
483 *picture = *picture2;
484 *bufp = buf;
485 }
486
487 /* we begin to correct av delay at this threshold */
488 #define AV_DELAY_MAX 0.100
489
490 static void do_video_out(AVFormatContext *s,
491 AVOutputStream *ost,
492 AVInputStream *ist,
493 AVFrame *in_picture,
494 int *frame_size, AVOutputStream *audio_sync)
495 {
496 int nb_frames, i, ret;
497 AVPicture *final_picture, *formatted_picture;
498 AVPicture picture_format_temp, picture_crop_temp;
499 static uint8_t *video_buffer= NULL;
500 uint8_t *buf = NULL, *buf1 = NULL;
501 AVCodecContext *enc, *dec;
502 enum PixelFormat target_pixfmt;
503
504 #define VIDEO_BUFFER_SIZE (1024*1024)
505
506 enc = &ost->st->codec;
507 dec = &ist->st->codec;
508
509 /* by default, we output a single frame */
510 nb_frames = 1;
511
512 *frame_size = 0;
513
514 /* NOTE: the A/V sync is always done by considering the audio is
515 the master clock. It is suffisant for transcoding or playing,
516 but not for the general case */
517 if (audio_sync) {
518 /* compute the A-V delay and duplicate/remove frames if needed */
519 double adelta, vdelta, av_delay;
520
521 adelta = audio_sync->sync_ipts - ((double)audio_sync->sync_opts *
522 s->pts_num / s->pts_den);
523
524 vdelta = ost->sync_ipts - ((double)ost->sync_opts *
525 s->pts_num / s->pts_den);
526
527 av_delay = adelta - vdelta;
528 // printf("delay=%f\n", av_delay);
529 if (av_delay < -AV_DELAY_MAX)
530 nb_frames = 2;
531 else if (av_delay > AV_DELAY_MAX)
532 nb_frames = 0;
533 } else {
534 double vdelta;
535
536 vdelta = (double)(ost->st->pts.val) * s->pts_num / s->pts_den - (ost->sync_ipts - ost->sync_ipts_offset);
537 if (vdelta < 100 && vdelta > -100 && ost->sync_ipts_offset) {
538 if (vdelta < -AV_DELAY_MAX)
539 nb_frames = 2;
540 else if (vdelta > AV_DELAY_MAX)
541 nb_frames = 0;
542 } else {
543 ost->sync_ipts_offset -= vdelta;
544 if (!ost->sync_ipts_offset)
545 ost->sync_ipts_offset = 0.000001; /* one microsecond */
546 }
547 }
548
549 #if defined(AVSYNC_DEBUG)
550 {
551 static char *action[] = { "drop frame", "copy frame", "dup frame" };
552 if (audio_sync)
553 fprintf(stderr, "Input APTS %12.6f, output APTS %12.6f, ",
554 (double) audio_sync->sync_ipts,
555 (double) audio_sync->st->pts.val * s->pts_num / s->pts_den);
556 fprintf(stderr, "Input VPTS %12.6f, output VPTS %12.6f: %s\n",
557 (double) ost->sync_ipts,
558 (double) ost->st->pts.val * s->pts_num / s->pts_den,
559 action[nb_frames]);
560 }
561 #endif
562
563 if (nb_frames <= 0)
564 return;
565
566 if (!video_buffer)
567 video_buffer = av_malloc(VIDEO_BUFFER_SIZE);
568 if (!video_buffer)
569 return;
570
571 /* convert pixel format if needed */
572 target_pixfmt = ost->video_resample ? PIX_FMT_YUV420P : enc->pix_fmt;
573 if (dec->pix_fmt != target_pixfmt) {
574 int size;
575
576 /* create temporary picture */
577 size = avpicture_get_size(target_pixfmt, dec->width, dec->height);
578 buf = av_malloc(size);
579 if (!buf)
580 return;
581 formatted_picture = &picture_format_temp;
582 avpicture_fill(formatted_picture, buf, target_pixfmt, dec->width, dec->height);
583
584 if (img_convert(formatted_picture, target_pixfmt,
585 (AVPicture *)in_picture, dec->pix_fmt,
586 dec->width, dec->height) < 0) {
587 fprintf(stderr, "pixel format conversion not handled\n");
588 goto the_end;
589 }
590 } else {
591 formatted_picture = (AVPicture *)in_picture;
592 }
593
594 /* XXX: resampling could be done before raw format convertion in
595 some cases to go faster */
596 /* XXX: only works for YUV420P */
597 if (ost->video_resample) {
598 final_picture = &ost->pict_tmp;
599 img_resample(ost->img_resample_ctx, final_picture, formatted_picture);
600 if (enc->pix_fmt != PIX_FMT_YUV420P) {
601 int size;
602
603 av_free(buf);
604 /* create temporary picture */
605 size = avpicture_get_size(enc->pix_fmt, enc->width, enc->height);
606 buf = av_malloc(size);
607 if (!buf)
608 return;
609 final_picture = &picture_format_temp;
610 avpicture_fill(final_picture, buf, enc->pix_fmt, enc->width, enc->height);
611
612 if (img_convert(final_picture, enc->pix_fmt,
613 &ost->pict_tmp, PIX_FMT_YUV420P,
614 enc->width, enc->height) < 0) {
615 fprintf(stderr, "pixel format conversion not handled\n");
616 goto the_end;
617 }
618 }
619 } else if (ost->video_crop) {
620 picture_crop_temp.data[0] = formatted_picture->data[0] +
621 (ost->topBand * formatted_picture->linesize[0]) + ost->leftBand;
622
623 picture_crop_temp.data[1] = formatted_picture->data[1] +
624 ((ost->topBand >> 1) * formatted_picture->linesize[1]) +
625 (ost->leftBand >> 1);
626
627 picture_crop_temp.data[2] = formatted_picture->data[2] +
628 ((ost->topBand >> 1) * formatted_picture->linesize[2]) +
629 (ost->leftBand >> 1);
630
631 picture_crop_temp.linesize[0] = formatted_picture->linesize[0];
632 picture_crop_temp.linesize[1] = formatted_picture->linesize[1];
633 picture_crop_temp.linesize[2] = formatted_picture->linesize[2];
634 final_picture = &picture_crop_temp;
635 } else {
636 final_picture = formatted_picture;
637 }
638 /* duplicates frame if needed */
639 /* XXX: pb because no interleaving */
640 for(i=0;i<nb_frames;i++) {
641 if (s->oformat->flags & AVFMT_RAWPICTURE) {
642 /* raw pictures are written as AVPicture structure to
643 avoid any copies. We support temorarily the older
644 method. */
645 AVFrame* old_frame = enc->coded_frame;
646 enc->coded_frame = dec->coded_frame;
647 av_write_frame(s, ost->index,
648 (uint8_t *)final_picture, sizeof(AVPicture));
649 enc->coded_frame = old_frame;
650 } else {
651 AVFrame big_picture;
652
653 memset(&big_picture, 0, sizeof(AVFrame));
654 *(AVPicture*)&big_picture= *final_picture;
655 /* better than nothing: use input picture interlaced
656 settings */
657 big_picture.interlaced_frame = in_picture->interlaced_frame;
658 if(do_interlace_me || do_interlace_dct){
659 if(top_field_first == -1)
660 big_picture.top_field_first = in_picture->top_field_first;
661 else
662 big_picture.top_field_first = 1;
663 }
664
665 /* handles sameq here. This is not correct because it may
666 not be a global option */
667 if (same_quality) {
668 big_picture.quality = ist->st->quality;
669 }else
670 big_picture.quality = ost->st->quality;
671 ret = avcodec_encode_video(enc,
672 video_buffer, VIDEO_BUFFER_SIZE,
673 &big_picture);
674 //enc->frame_number = enc->real_pict_num;
675 av_write_frame(s, ost->index, video_buffer, ret);
676 *frame_size = ret;
677 //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
678 // enc->frame_number-1, enc->real_pict_num, ret,
679 // enc->pict_type);
680 /* if two pass, output log */
681 if (ost->logfile && enc->stats_out) {
682 fprintf(ost->logfile, "%s", enc->stats_out);
683 }
684 }
685 ost->frame_number++;
686 }
687 the_end:
688 av_free(buf);
689 av_free(buf1);
690 }
691
692 static double psnr(double d){
693 if(d==0) return INFINITY;
694 return -10.0*log(d)/log(10.0);
695 }
696
697 static void do_video_stats(AVFormatContext *os, AVOutputStream *ost,
698 int frame_size)
699 {
700 static FILE *fvstats=NULL;
701 static int64_t total_size = 0;
702 char filename[40];
703 time_t today2;
704 struct tm *today;
705 AVCodecContext *enc;
706 int frame_number;
707 int64_t ti;
708 double ti1, bitrate, avg_bitrate;
709
710 if (!fvstats) {
711 today2 = time(NULL);
712 today = localtime(&today2);
713 sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
714 today->tm_min,
715 today->tm_sec);
716 fvstats = fopen(filename,"w");
717 if (!fvstats) {
718 perror("fopen");
719 exit(1);
720 }
721 }
722
723 ti = MAXINT64;
724 enc = &ost->st->codec;
725 total_size += frame_size;
726 if (enc->codec_type == CODEC_TYPE_VIDEO) {
727 frame_number = ost->frame_number;
728 fprintf(fvstats, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
729 if (enc->flags&CODEC_FLAG_PSNR)
730 fprintf(fvstats, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
731
732 fprintf(fvstats,"f_size= %6d ", frame_size);
733 /* compute pts value */
734 ti1 = (double)ost->st->pts.val * os->pts_num / os->pts_den;
735 if (ti1 < 0.01)
736 ti1 = 0.01;
737
738 bitrate = (double)(frame_size * 8) * enc->frame_rate / enc->frame_rate_base / 1000.0;
739 avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0;
740 fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
741 (double)total_size / 1024, ti1, bitrate, avg_bitrate);
742 fprintf(fvstats,"type= %c\n", av_get_pict_type_char(enc->coded_frame->pict_type));
743 }
744 }
745
746 static void print_report(AVFormatContext **output_files,
747 AVOutputStream **ost_table, int nb_ostreams,
748 int is_last_report)
749 {
750 char buf[1024];
751 AVOutputStream *ost;
752 AVFormatContext *oc, *os;
753 int64_t total_size;
754 AVCodecContext *enc;
755 int frame_number, vid, i;
756 double bitrate, ti1, pts;
757 static int64_t last_time = -1;
758
759 if (!is_last_report) {
760 int64_t cur_time;
761 /* display the report every 0.5 seconds */
762 cur_time = av_gettime();
763 if (last_time == -1) {
764 last_time = cur_time;
765 return;
766 }
767 if ((cur_time - last_time) < 500000)
768 return;
769 last_time = cur_time;
770 }
771
772
773 oc = output_files[0];
774
775 total_size = url_ftell(&oc->pb);
776
777 buf[0] = '\0';
778 ti1 = 1e10;
779 vid = 0;
780 for(i=0;i<nb_ostreams;i++) {
781 ost = ost_table[i];
782 os = output_files[ost->file_index];
783 enc = &ost->st->codec;
784 if (vid && enc->codec_type == CODEC_TYPE_VIDEO) {
785 sprintf(buf + strlen(buf), "q=%2.1f ",
786 enc->coded_frame->quality/(float)FF_QP2LAMBDA);
787 }
788 if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) {
789 frame_number = ost->frame_number;
790 sprintf(buf + strlen(buf), "frame=%5d q=%2.1f ",
791 frame_number, enc->coded_frame ? enc->coded_frame->quality/(float)FF_QP2LAMBDA : 0);
792 if(is_last_report)
793 sprintf(buf + strlen(buf), "L");
794 if (enc->flags&CODEC_FLAG_PSNR){
795 int j;
796 double error, error_sum=0;
797 double scale, scale_sum=0;
798 char type[3]= {'Y','U','V'};
799 sprintf(buf + strlen(buf), "PSNR=");
800 for(j=0; j<3; j++){
801 if(is_last_report){
802 error= enc->error[j];
803 scale= enc->width*enc->height*255.0*255.0*frame_number;
804 }else{
805 error= enc->coded_frame->error[j];
806 scale= enc->width*enc->height*255.0*255.0;
807 }
808 if(j) scale/=4;
809 error_sum += error;
810 scale_sum += scale;
811 sprintf(buf + strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
812 }
813 sprintf(buf + strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
814 }
815 vid = 1;
816 }
817 /* compute min output value */
818 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
819 if ((pts < ti1) && (pts > 0))
820 ti1 = pts;
821 }
822 if (ti1 < 0.01)
823 ti1 = 0.01;
824
825 if (verbose || is_last_report) {
826 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
827
828 sprintf(buf + strlen(buf),
829 "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s",
830 (double)total_size / 1024, ti1, bitrate);
831
832 fprintf(stderr, "%s \r", buf);
833 fflush(stderr);
834 }
835
836 if (is_last_report)
837 fprintf(stderr, "\n");
838 }
839
840 /* pkt = NULL means EOF (needed to flush decoder buffers) */
841 static int output_packet(AVInputStream *ist, int ist_index,
842 AVOutputStream **ost_table, int nb_ostreams,
843 AVPacket *pkt)
844 {
845 AVFormatContext *os;
846 AVOutputStream *ost;
847 uint8_t *ptr;
848 int len, ret, i;
849 uint8_t *data_buf;
850 int data_size, got_picture;
851 AVFrame picture;
852 short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2];
853 void *buffer_to_free;
854
855 if (pkt && pkt->pts != AV_NOPTS_VALUE) {
856 ist->pts = pkt->pts;
857 } else {
858 ist->pts = ist->next_pts;
859 }
860
861 if (pkt == NULL) {
862 /* EOF handling */
863 ptr = NULL;
864 len = 0;
865 goto handle_eof;
866 }
867
868 len = pkt->size;
869 ptr = pkt->data;
870 while (len > 0) {
871 handle_eof:
872 /* decode the packet if needed */
873 data_buf = NULL; /* fail safe */
874 data_size = 0;
875 if (ist->decoding_needed) {
876 switch(ist->st->codec.codec_type) {
877 case CODEC_TYPE_AUDIO:
878 /* XXX: could avoid copy if PCM 16 bits with same
879 endianness as CPU */
880 ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size,
881 ptr, len);
882 if (ret < 0)
883 goto fail_decode;
884 ptr += ret;
885 len -= ret;
886 /* Some bug in mpeg audio decoder gives */
887 /* data_size < 0, it seems they are overflows */
888 if (data_size <= 0) {
889 /* no audio frame */
890 continue;
891 }
892 data_buf = (uint8_t *)samples;
893 ist->next_pts += ((int64_t)AV_TIME_BASE * data_size) /
894 (2 * ist->st->codec.channels);
895 break;
896 case CODEC_TYPE_VIDEO:
897 data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2;
898 /* XXX: allocate picture correctly */
899 memset(&picture, 0, sizeof(picture));
900 ret = avcodec_decode_video(&ist->st->codec,
901 &picture, &got_picture, ptr, len);
902 ist->st->quality= picture.quality;
903 if (ret < 0)
904 goto fail_decode;
905 if (!got_picture) {
906 /* no picture yet */
907 goto discard_packet;
908 }
909 if (ist->st->codec.frame_rate_base != 0) {
910 ist->next_pts += ((int64_t)AV_TIME_BASE *
911 ist->st->codec.frame_rate_base) /
912 ist->st->codec.frame_rate;
913 }
914 len = 0;
915 break;
916 default:
917 goto fail_decode;
918 }
919 } else {
920 data_buf = ptr;
921 data_size = len;
922 ret = len;
923 len = 0;
924 }
925
926 buffer_to_free = NULL;
927 if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) {
928 pre_process_video_frame(ist, (AVPicture *)&picture,
929 &buffer_to_free);
930 }
931
932 /* frame rate emulation */
933 if (ist->st->codec.rate_emu) {
934 int64_t pts = av_rescale((int64_t) ist->frame * ist->st->codec.frame_rate_base, 1000000, ist->st->codec.frame_rate);
935 int64_t now = av_gettime() - ist->start;
936 if (pts > now)
937 usleep(pts - now);
938
939 ist->frame++;
940 }
941
942 #if 0
943 /* mpeg PTS deordering : if it is a P or I frame, the PTS
944 is the one of the next displayed one */
945 /* XXX: add mpeg4 too ? */
946 if (ist->st->codec.codec_id == CODEC_ID_MPEG1VIDEO) {
947 if (ist->st->codec.pict_type != B_TYPE) {
948 int64_t tmp;
949 tmp = ist->last_ip_pts;
950 ist->last_ip_pts = ist->frac_pts.val;
951 ist->frac_pts.val = tmp;
952 }
953 }
954 #endif
955 /* if output time reached then transcode raw format,
956 encode packets and output them */
957 if (start_time == 0 || ist->pts >= start_time)
958 for(i=0;i<nb_ostreams;i++) {
959 int frame_size;
960
961 ost = ost_table[i];
962 if (ost->source_index == ist_index) {
963 os = output_files[ost->file_index];
964
965 #if 0
966 printf("%d: got pts=%0.3f %0.3f\n", i,
967 (double)pkt->pts / AV_TIME_BASE,
968 ((double)ist->pts / AV_TIME_BASE) -
969 ((double)ost->st->pts.val * os->pts_num / os->pts_den));
970 #endif
971 /* set the input output pts pairs */
972 ost->sync_ipts = (double)ist->pts / AV_TIME_BASE;
973 /* XXX: take into account the various fifos,
974 in particular for audio */
975 ost->sync_opts = ost->st->pts.val;
976 //printf("ipts=%lld sync_ipts=%f sync_opts=%lld pts.val=%lld pkt->pts=%lld\n", ist->pts, ost->sync_ipts, ost->sync_opts, ost->st->pts.val, pkt->pts);
977
978 if (ost->encoding_needed) {
979 switch(ost->st->codec.codec_type) {
980 case CODEC_TYPE_AUDIO:
981 do_audio_out(os, ost, ist, data_buf, data_size);
982 break;
983 case CODEC_TYPE_VIDEO:
984 /* find an audio stream for synchro */
985 {
986 int i;
987 AVOutputStream *audio_sync, *ost1;
988 audio_sync = NULL;
989 for(i=0;i<nb_ostreams;i++) {
990 ost1 = ost_table[i];
991 if (ost1->file_index == ost->file_index &&
992 ost1->st->codec.codec_type == CODEC_TYPE_AUDIO) {
993 audio_sync = ost1;
994 break;
995 }
996 }
997
998 do_video_out(os, ost, ist, &picture, &frame_size, audio_sync);
999 if (do_vstats && frame_size)
1000 do_video_stats(os, ost, frame_size);
1001 }
1002 break;
1003 default:
1004 av_abort();
1005 }
1006 } else {
1007 AVFrame avframe;
1008
1009 /* no reencoding needed : output the packet directly */
1010 /* force the input stream PTS */
1011
1012 memset(&avframe, 0, sizeof(AVFrame));
1013 ost->st->codec.coded_frame= &avframe;
1014 avframe.key_frame = pkt->flags & PKT_FLAG_KEY;
1015
1016 av_write_frame(os, ost->index, data_buf, data_size);
1017 ost->st->codec.frame_number++;
1018 ost->frame_number++;
1019 }
1020 }
1021 }
1022 av_free(buffer_to_free);
1023 }
1024 discard_packet:
1025 return 0;
1026 fail_decode:
1027 return -1;
1028 }
1029
1030
1031 /*
1032 * The following code is the main loop of the file converter
1033 */
1034 static int av_encode(AVFormatContext **output_files,
1035 int nb_output_files,
1036 AVFormatContext **input_files,
1037 int nb_input_files,
1038 AVStreamMap *stream_maps, int nb_stream_maps)
1039 {
1040 int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0;
1041 AVFormatContext *is, *os;
1042 AVCodecContext *codec, *icodec;
1043 AVOutputStream *ost, **ost_table = NULL;
1044 AVInputStream *ist, **ist_table = NULL;
1045 AVInputFile *file_table;
1046 AVFormatContext *stream_no_data;
1047 int key;
1048
1049 file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile));
1050 if (!file_table)
1051 goto fail;
1052
1053 /* input stream init */
1054 j = 0;
1055 for(i=0;i<nb_input_files;i++) {
1056 is = input_files[i];
1057 file_table[i].ist_index = j;
1058 file_table[i].nb_streams = is->nb_streams;
1059 j += is->nb_streams;
1060 }
1061 nb_istreams = j;
1062
1063 ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *));
1064 if (!ist_table)
1065 goto fail;
1066
1067 for(i=0;i<nb_istreams;i++) {
1068 ist = av_mallocz(sizeof(AVInputStream));
1069 if (!ist)
1070 goto fail;
1071 ist_table[i] = ist;
1072 }
1073 j = 0;
1074 for(i=0;i<nb_input_files;i++) {
1075 is = input_files[i];
1076 for(k=0;k<is->nb_streams;k++) {
1077 ist = ist_table[j++];
1078 ist->st = is->streams[k];
1079 ist->file_index = i;
1080 ist->index = k;
1081 ist->discard = 1; /* the stream is discarded by default
1082 (changed later) */
1083
1084 if (ist->st->codec.rate_emu) {
1085 ist->start = av_gettime();
1086 ist->frame = 0;
1087 }
1088 }
1089 }
1090
1091 /* output stream init */
1092 nb_ostreams = 0;
1093 for(i=0;i<nb_output_files;i++) {
1094 os = output_files[i];
1095 nb_ostreams += os->nb_streams;
1096 }
1097 if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) {
1098 fprintf(stderr, "Number of stream maps must match number of output streams\n");
1099 exit(1);
1100 }
1101
1102 /* Sanity check the mapping args -- do the input files & streams exist? */
1103 for(i=0;i<nb_stream_maps;i++) {
1104 int fi = stream_maps[i].file_index;
1105 int si = stream_maps[i].stream_index;
1106
1107 if (fi < 0 || fi > nb_input_files - 1 ||
1108 si < 0 || si > file_table[fi].nb_streams - 1) {
1109 fprintf(stderr,"Could not find input stream #%d.%d\n", fi, si);
1110 exit(1);
1111 }
1112 }
1113
1114 ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams);
1115 if (!ost_table)
1116 goto fail;
1117 for(i=0;i<nb_ostreams;i++) {
1118 ost = av_mallocz(sizeof(AVOutputStream));
1119 if (!ost)
1120 goto fail;
1121 ost_table[i] = ost;
1122 }
1123
1124 n = 0;
1125 for(k=0;k<nb_output_files;k++) {
1126 os = output_files[k];
1127 for(i=0;i<os->nb_streams;i++) {
1128 int found;
1129 ost = ost_table[n++];
1130 ost->file_index = k;
1131 ost->index = i;
1132 ost->st = os->streams[i];
1133 if (nb_stream_maps > 0) {
1134 ost->source_index = file_table[stream_maps[n-1].file_index].ist_index +
1135 stream_maps[n-1].stream_index;
1136
1137 /* Sanity check that the stream types match */
1138 if (ist_table[ost->source_index]->st->codec.codec_type != ost->st->codec.codec_type) {
1139 fprintf(stderr, "Codec type mismatch for mapping #%d.%d -> #%d.%d\n",
1140 stream_maps[n-1].file_index, stream_maps[n-1].stream_index,
1141 ost->file_index, ost->index);
1142 exit(1);
1143 }
1144
1145 } else {
1146 /* get corresponding input stream index : we select the first one with the right type */
1147 found = 0;
1148 for(j=0;j<nb_istreams;j++) {
1149 ist = ist_table[j];
1150 if (ist->discard &&
1151 ist->st->codec.codec_type == ost->st->codec.codec_type) {
1152 ost->source_index = j;
1153 found = 1;
1154 }
1155 }
1156
1157 if (!found) {
1158 /* try again and reuse existing stream */
1159 for(j=0;j<nb_istreams;j++) {
1160 ist = ist_table[j];
1161 if (ist->st->codec.codec_type == ost->st->codec.codec_type) {
1162 ost->source_index = j;
1163 found = 1;
1164 }
1165 }
1166 if (!found) {
1167 fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n",
1168 ost->file_index, ost->index);
1169 exit(1);
1170 }
1171 }
1172 }
1173 ist = ist_table[ost->source_index];
1174 ist->discard = 0;
1175 }
1176 }
1177
1178 /* for each output stream, we compute the right encoding parameters */
1179 for(i=0;i<nb_ostreams;i++) {
1180 ost = ost_table[i];
1181 ist = ist_table[ost->source_index];
1182
1183 codec = &ost->st->codec;
1184 icodec = &ist->st->codec;
1185
1186 if (ost->st->stream_copy) {
1187 /* if stream_copy is selected, no need to decode or encode */
1188 codec->codec_id = icodec->codec_id;
1189 codec->codec_type = icodec->codec_type;
1190 codec->codec_tag = icodec->codec_tag;
1191 codec->bit_rate = icodec->bit_rate;
1192 switch(codec->codec_type) {
1193 case CODEC_TYPE_AUDIO:
1194 codec->sample_rate = icodec->sample_rate;
1195 codec->channels = icodec->channels;
1196 break;
1197 case CODEC_TYPE_VIDEO:
1198 codec->frame_rate = icodec->frame_rate;
1199 codec->frame_rate_base = icodec->frame_rate_base;
1200 codec->width = icodec->width;
1201 codec->height = icodec->height;
1202 break;
1203 default:
1204 av_abort();
1205 }
1206 } else {
1207 switch(codec->codec_type) {
1208 case CODEC_TYPE_AUDIO:
1209 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
1210 goto fail;
1211
1212 if (codec->channels == icodec->channels &&
1213 codec->sample_rate == icodec->sample_rate) {
1214 ost->audio_resample = 0;
1215 } else {
1216 if (codec->channels != icodec->channels &&
1217 icodec->codec_id == CODEC_ID_AC3) {
1218 /* Special case for 5:1 AC3 input */
1219 /* and mono or stereo output */
1220 /* Request specific number of channels */
1221 icodec->channels = codec->channels;
1222 if (codec->sample_rate == icodec->sample_rate)
1223 ost->audio_resample = 0;
1224 else {
1225 ost->audio_resample = 1;
1226 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1227 codec->sample_rate,
1228 icodec->sample_rate);
1229 if(!ost->resample)
1230 {
1231 printf("Can't resample. Aborting.\n");
1232 av_abort();
1233 }
1234 }
1235 /* Request specific number of channels */
1236 icodec->channels = codec->channels;
1237 } else {
1238 ost->audio_resample = 1;
1239 ost->resample = audio_resample_init(codec->channels, icodec->channels,
1240 codec->sample_rate,
1241 icodec->sample_rate);
1242 if(!ost->resample)
1243 {
1244 printf("Can't resample. Aborting.\n");
1245 av_abort();
1246 }
1247 }
1248 }
1249 ist->decoding_needed = 1;
1250 ost->encoding_needed = 1;
1251 break;
1252 case CODEC_TYPE_VIDEO:
1253 if (codec->width == icodec->width &&
1254 codec->height == icodec->height &&
1255 frame_topBand == 0 &&
1256 frame_bottomBand == 0 &&
1257 frame_leftBand == 0 &&
1258 frame_rightBand == 0)
1259 {
1260 ost->video_resample = 0;
1261 ost->video_crop = 0;
1262 } else if ((codec->width == icodec->width -
1263 (frame_leftBand + frame_rightBand)) &&
1264 (codec->height == icodec->height -
1265 (frame_topBand + frame_bottomBand)))
1266 {
1267 ost->video_resample = 0;
1268 ost->video_crop = 1;
1269 ost->topBand = frame_topBand;
1270 ost->leftBand = frame_leftBand;
1271 } else {
1272 ost->video_resample = 1;
1273 ost->video_crop = 0; // cropping is handled as part of resample
1274 if( avpicture_alloc( &ost->pict_tmp, PIX_FMT_YUV420P,
1275 codec->width, codec->height ) )
1276 goto fail;
1277
1278 ost->img_resample_ctx = img_resample_full_init(
1279 ost->st->codec.width, ost->st->codec.height,
1280 ist->st->codec.width, ist->st->codec.height,
1281 frame_topBand, frame_bottomBand,
1282 frame_leftBand, frame_rightBand);
1283 }
1284 ost->encoding_needed = 1;
1285 ist->decoding_needed = 1;
1286 break;
1287 default:
1288 av_abort();
1289 }
1290 /* two pass mode */
1291 if (ost->encoding_needed &&
1292 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1293 char logfilename[1024];
1294 FILE *f;
1295 int size;
1296 char *logbuffer;
1297
1298 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1299 pass_logfilename ?
1300 pass_logfilename : DEFAULT_PASS_LOGFILENAME, i);
1301 if (codec->flags & CODEC_FLAG_PASS1) {
1302 f = fopen(logfilename, "w");
1303 if (!f) {
1304 perror(logfilename);
1305 exit(1);
1306 }
1307 ost->logfile = f;
1308 } else {
1309 /* read the log file */
1310 f = fopen(logfilename, "r");
1311 if (!f) {
1312 perror(logfilename);
1313 exit(1);
1314 }
1315 fseek(f, 0, SEEK_END);
1316 size = ftell(f);
1317 fseek(f, 0, SEEK_SET);
1318 logbuffer = av_malloc(size + 1);
1319 if (!logbuffer) {
1320 fprintf(stderr, "Could not allocate log buffer\n");
1321 exit(1);
1322 }
1323 size = fread(logbuffer, 1, size, f);
1324 fclose(f);
1325 logbuffer[size] = '\0';
1326 codec->stats_in = logbuffer;
1327 }
1328 }
1329 }
1330 }
1331
1332 /* dump the file output parameters - cannot be done before in case
1333 of stream copy */
1334 for(i=0;i<nb_output_files;i++) {
1335 dump_format(output_files[i], i, output_files[i]->filename, 1);
1336 }
1337
1338 /* dump the stream mapping */
1339 fprintf(stderr, "Stream mapping:\n");
1340 for(i=0;i<nb_ostreams;i++) {
1341 ost = ost_table[i];
1342 fprintf(stderr, " Stream #%d.%d -> #%d.%d\n",
1343 ist_table[ost->source_index]->file_index,
1344 ist_table[ost->source_index]->index,
1345 ost->file_index,
1346 ost->index);
1347 }
1348
1349 /* open each encoder */
1350 for(i=0;i<nb_ostreams;i++) {
1351 ost = ost_table[i];
1352 if (ost->encoding_needed) {
1353 AVCodec *codec;
1354 codec = avcodec_find_encoder(ost->st->codec.codec_id);
1355 if (!codec) {
1356 fprintf(stderr, "Unsupported codec for output stream #%d.%d\n",
1357 ost->file_index, ost->index);
1358 exit(1);
1359 }
1360 if (avcodec_open(&ost->st->codec, codec) < 0) {
1361 fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n",
1362 ost->file_index, ost->index);
1363 exit(1);
1364 }
1365 }
1366 }
1367
1368 /* open each decoder */
1369 for(i=0;i<nb_istreams;i++) {
1370 ist = ist_table[i];
1371 if (ist->decoding_needed) {
1372 AVCodec *codec;
1373 codec = avcodec_find_decoder(ist->st->codec.codec_id);
1374 if (!codec) {
1375 fprintf(stderr, "Unsupported codec (id=%d) for input stream #%d.%d\n",
1376 ist->st->codec.codec_id, ist->file_index, ist->index);
1377 exit(1);
1378 }
1379 if (avcodec_open(&ist->st->codec, codec) < 0) {
1380 fprintf(stderr, "Error while opening codec for input stream #%d.%d\n",
1381 ist->file_index, ist->index);
1382 exit(1);
1383 }
1384 //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO)
1385 // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD;
1386 }
1387 }
1388
1389 /* init pts */
1390 for(i=0;i<nb_istreams;i++) {
1391 ist = ist_table[i];
1392 is = input_files[ist->file_index];
1393 ist->pts = 0;
1394 ist->next_pts = 0;
1395 }
1396
1397 /* compute buffer size max (should use a complete heuristic) */
1398 for(i=0;i<nb_input_files;i++) {
1399 file_table[i].buffer_size_max = 2048;
1400 }
1401
1402 /* open files and write file headers */
1403 for(i=0;i<nb_output_files;i++) {
1404 os = output_files[i];
1405 if (av_write_header(os) < 0) {
1406 fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i);
1407 ret = -EINVAL;
1408 goto fail;
1409 }
1410 }
1411
1412 #ifndef CONFIG_WIN32
1413 if ( !using_stdin )
1414 fprintf(stderr, "Press [q] to stop encoding\n");
1415 #endif
1416 term_init();
1417
1418 stream_no_data = 0;
1419 key = -1;
1420
1421 for(; received_sigterm == 0;) {
1422 int file_index, ist_index;
1423 AVPacket pkt;
1424 double pts_min;
1425
1426 redo:
1427 /* if 'q' pressed, exits */
1428 if (!using_stdin) {
1429 /* read_key() returns 0 on EOF */
1430 key = read_key();
1431 if (key == 'q')
1432 break;
1433 }
1434
1435 /* select the stream that we must read now by looking at the
1436 smallest output pts */
1437 file_index = -1;
1438 pts_min = 1e10;
1439 for(i=0;i<nb_ostreams;i++) {
1440 double pts;
1441 ost = ost_table[i];
1442 os = output_files[ost->file_index];
1443 ist = ist_table[ost->source_index];
1444 pts = (double)ost->st->pts.val * os->pts_num / os->pts_den;
1445 if (!file_table[ist->file_index].eof_reached &&
1446 pts < pts_min) {
1447 pts_min = pts;
1448 file_index = ist->file_index;
1449 }
1450 }
1451 /* if none, if is finished */
1452 if (file_index < 0) {
1453 break;
1454 }
1455
1456 /* finish if recording time exhausted */
1457 if (recording_time > 0 && pts_min >= (recording_time / 1000000.0))
1458 break;
1459
1460 /* read a frame from it and output it in the fifo */
1461 is = input_files[file_index];
1462 if (av_read_frame(is, &pkt) < 0) {
1463 file_table[file_index].eof_reached = 1;
1464 continue;
1465 }
1466
1467 if (!pkt.size) {
1468 stream_no_data = is;
1469 } else {
1470 stream_no_data = 0;
1471 }
1472 if (do_pkt_dump) {
1473 av_pkt_dump(stdout, &pkt, do_hex_dump);
1474 }
1475 /* the following test is needed in case new streams appear
1476 dynamically in stream : we ignore them */
1477 if (pkt.stream_index >= file_table[file_index].nb_streams)
1478 goto discard_packet;
1479 ist_index = file_table[file_index].ist_index + pkt.stream_index;
1480 ist = ist_table[ist_index];
1481 if (ist->discard)
1482 goto discard_packet;
1483
1484 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size);
1485 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
1486 fprintf(stderr, "Error while decoding stream #%d.%d\n",
1487 ist->file_index, ist->index);
1488 av_free_packet(&pkt);
1489 goto redo;
1490 }
1491
1492 discard_packet:
1493 av_free_packet(&pkt);
1494
1495 /* dump report by using the output first video and audio streams */
1496 print_report(output_files, ost_table, nb_ostreams, 0);
1497 }
1498
1499 /* at the end of stream, we must flush the decoder buffers */
1500 for(i=0;i<nb_istreams;i++) {
1501 ist = ist_table[i];
1502 if (ist->decoding_needed) {
1503 output_packet(ist, i, ost_table, nb_ostreams, NULL);
1504 }
1505 }
1506
1507 term_exit();
1508
1509 /* dump report by using the first video and audio streams */
1510 print_report(output_files, ost_table, nb_ostreams, 1);
1511
1512 /* close each encoder */
1513 for(i=0;i<nb_ostreams;i++) {
1514 ost = ost_table[i];
1515 if (ost->encoding_needed) {
1516 av_freep(&ost->st->codec.stats_in);
1517 avcodec_close(&ost->st->codec);
1518 }
1519 }
1520
1521 /* close each decoder */
1522 for(i=0;i<nb_istreams;i++) {
1523 ist = ist_table[i];
1524 if (ist->decoding_needed) {
1525 avcodec_close(&ist->st->codec);
1526 }
1527 }
1528
1529
1530 /* write the trailer if needed and close file */
1531 for(i=0;i<nb_output_files;i++) {
1532 os = output_files[i];
1533 av_write_trailer(os);
1534 }
1535 /* finished ! */
1536
1537 ret = 0;
1538 fail1:
1539 av_free(file_table);
1540
1541 if (ist_table) {
1542 for(i=0;i<nb_istreams;i++) {
1543 ist = ist_table[i];
1544 av_free(ist);
1545 }
1546 av_free(ist_table);
1547 }
1548 if (ost_table) {
1549 for(i=0;i<nb_ostreams;i++) {
1550 ost = ost_table[i];
1551 if (ost) {
1552 if (ost->logfile) {
1553 fclose(ost->logfile);
1554 ost->logfile = NULL;
1555 }
1556 fifo_free(&ost->fifo); /* works even if fifo is not
1557 initialized but set to zero */
1558 av_free(ost->pict_tmp.data[0]);
1559 if (ost->video_resample)
1560 img_resample_close(ost->img_resample_ctx);
1561 if (ost->audio_resample)
1562 audio_resample_close(ost->resample);
1563 av_free(ost);
1564 }
1565 }
1566 av_free(ost_table);
1567 }
1568 return ret;
1569 fail:
1570 ret = -ENOMEM;
1571 goto fail1;
1572 }
1573
1574 #if 0
1575 int file_read(const char *filename)
1576 {
1577 URLContext *h;
1578 unsigned char buffer[1024];
1579 int len, i;
1580
1581 if (url_open(&h, filename, O_RDONLY) < 0) {
1582 printf("could not open '%s'\n", filename);
1583 return -1;
1584 }
1585 for(;;) {
1586 len = url_read(h, buffer, sizeof(buffer));
1587 if (len <= 0)
1588 break;
1589 for(i=0;i<len;i++) putchar(buffer[i]);
1590 }
1591 url_close(h);
1592 return 0;
1593 }
1594 #endif
1595
1596 static void opt_image_format(const char *arg)
1597 {
1598 AVImageFormat *f;
1599
1600 for(f = first_image_format; f != NULL; f = f->next) {
1601 if (!strcmp(arg, f->name))
1602 break;
1603 }
1604 if (!f) {
1605 fprintf(stderr, "Unknown image format: '%s'\n", arg);
1606 exit(1);
1607 }
1608 image_format = f;
1609 }
1610
1611 static void opt_format(const char *arg)
1612 {
1613 /* compatibility stuff for pgmyuv */
1614 if (!strcmp(arg, "pgmyuv")) {
1615 opt_image_format(arg);
1616 arg = "image";
1617 }
1618
1619 file_iformat = av_find_input_format(arg);
1620 file_oformat = guess_format(arg, NULL, NULL);
1621 if (!file_iformat && !file_oformat) {
1622 fprintf(stderr, "Unknown input or output format: %s\n", arg);
1623 exit(1);
1624 }
1625 }
1626
1627 static void opt_video_bitrate(const char *arg)
1628 {
1629 video_bit_rate = atoi(arg) * 1000;
1630 }
1631
1632 static void opt_video_bitrate_tolerance(const char *arg)
1633 {
1634 video_bit_rate_tolerance = atoi(arg) * 1000;
1635 }
1636
1637 static void opt_video_bitrate_max(const char *arg)
1638 {
1639 video_rc_max_rate = atoi(arg) * 1000;
1640 }
1641
1642 static void opt_video_bitrate_min(const char *arg)
1643 {
1644 video_rc_min_rate = atoi(arg) * 1000;
1645 }
1646
1647 static void opt_video_buffer_size(const char *arg)
1648 {
1649 video_rc_buffer_size = atoi(arg) * 8*1024;
1650 }
1651
1652 static void opt_video_rc_eq(char *arg)
1653 {
1654 video_rc_eq = arg;
1655 }
1656
1657 static void opt_video_rc_override_string(char *arg)
1658 {
1659 video_rc_override_string = arg;
1660 }
1661
1662
1663 static void opt_workaround_bugs(const char *arg)
1664 {
1665 workaround_bugs = atoi(arg);
1666 }
1667
1668 static void opt_dct_algo(const char *arg)
1669 {
1670 dct_algo = atoi(arg);
1671 }
1672
1673 static void opt_idct_algo(const char *arg)
1674 {
1675 idct_algo = atoi(arg);
1676 }
1677
1678
1679 static void opt_error_resilience(const char *arg)
1680 {
1681 error_resilience = atoi(arg);
1682 }
1683
1684 static void opt_error_concealment(const char *arg)
1685 {
1686 error_concealment = atoi(arg);
1687 }
1688
1689 static void opt_debug(const char *arg)
1690 {
1691 debug = atoi(arg);
1692 }
1693
1694 static void opt_vismv(const char *arg)
1695 {
1696 debug_mv = atoi(arg);
1697 }
1698
1699 static void opt_verbose(const char *arg)
1700 {
1701 verbose = atoi(arg);
1702 }
1703
1704 static void opt_frame_rate(const char *arg)
1705 {
1706 if (parse_frame_rate(&frame_rate, &frame_rate_base, arg) < 0) {
1707 fprintf(stderr, "Incorrect frame rate\n");
1708 exit(1);
1709 }
1710 }
1711
1712 static void opt_frame_crop_top(const char *arg)
1713 {
1714 frame_topBand = atoi(arg);
1715 if (frame_topBand < 0) {
1716 fprintf(stderr, "Incorrect top crop size\n");
1717 exit(1);
1718 }
1719 if ((frame_topBand % 2) != 0) {
1720 fprintf(stderr, "Top crop size must be a multiple of 2\n");
1721 exit(1);
1722 }
1723 if ((frame_topBand) >= frame_height){
1724 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1725 exit(1);
1726 }
1727 frame_height -= frame_topBand;
1728 }
1729
1730 static void opt_frame_crop_bottom(const char *arg)
1731 {
1732 frame_bottomBand = atoi(arg);
1733 if (frame_bottomBand < 0) {
1734 fprintf(stderr, "Incorrect bottom crop size\n");
1735 exit(1);
1736 }
1737 if ((frame_bottomBand % 2) != 0) {
1738 fprintf(stderr, "Bottom crop size must be a multiple of 2\n");
1739 exit(1);
1740 }
1741 if ((frame_bottomBand) >= frame_height){
1742 fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1743 exit(1);
1744 }
1745 frame_height -= frame_bottomBand;
1746 }
1747
1748 static void opt_frame_crop_left(const char *arg)
1749 {
1750 frame_leftBand = atoi(arg);
1751 if (frame_leftBand < 0) {
1752 fprintf(stderr, "Incorrect left crop size\n");
1753 exit(1);
1754 }
1755 if ((frame_leftBand % 2) != 0) {
1756 fprintf(stderr, "Left crop size must be a multiple of 2\n");
1757 exit(1);
1758 }
1759 if ((frame_leftBand) >= frame_width){
1760 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1761 exit(1);
1762 }
1763 frame_width -= frame_leftBand;
1764 }
1765
1766 static void opt_frame_crop_right(const char *arg)
1767 {
1768 frame_rightBand = atoi(arg);
1769 if (frame_rightBand < 0) {
1770 fprintf(stderr, "Incorrect right crop size\n");
1771 exit(1);
1772 }
1773 if ((frame_rightBand % 2) != 0) {
1774 fprintf(stderr, "Right crop size must be a multiple of 2\n");
1775 exit(1);
1776 }
1777 if ((frame_rightBand) >= frame_width){
1778 fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n");
1779 exit(1);
1780 }
1781 frame_width -= frame_rightBand;
1782 }
1783
1784 static void opt_frame_size(const char *arg)
1785 {
1786 if (parse_image_size(&frame_width, &frame_height, arg) < 0) {
1787 fprintf(stderr, "Incorrect frame size\n");
1788 exit(1);
1789 }
1790 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
1791 fprintf(stderr, "Frame size must be a multiple of 2\n");
1792 exit(1);
1793 }
1794 }
1795
1796 static void opt_frame_pix_fmt(const char *arg)
1797 {
1798 frame_pix_fmt = avcodec_get_pix_fmt(arg);
1799 }
1800
1801 static void opt_frame_aspect_ratio(const char *arg)
1802 {
1803 int x = 0, y = 0;
1804 double ar = 0;
1805 const char *p;
1806
1807 p = strchr(arg, ':');
1808 if (p) {
1809 x = strtol(arg, (char **)&arg, 10);
1810 if (arg == p)
1811 y = strtol(arg+1, (char **)&arg, 10);
1812 if (x > 0 && y > 0)
1813 ar = (double)x / (double)y;
1814 } else
1815 ar = strtod(arg, (char **)&arg);
1816
1817 if (!ar) {
1818 fprintf(stderr, "Incorrect aspect ratio specification.\n");
1819 exit(1);
1820 }
1821 frame_aspect_ratio = ar;
1822 }
1823
1824 static void opt_gop_size(const char *arg)
1825 {
1826 gop_size = atoi(arg);
1827 }
1828
1829 static void opt_b_frames(const char *arg)
1830 {
1831 b_frames = atoi(arg);
1832 if (b_frames > FF_MAX_B_FRAMES) {
1833 fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES);
1834 exit(1);
1835 } else if (b_frames < 1) {
1836 fprintf(stderr, "\nNumber of B frames must be higher than 0\n");
1837 exit(1);
1838 }
1839 }
1840
1841 static void opt_mb_decision(const char *arg)
1842 {
1843 mb_decision = atoi(arg);
1844 }
1845
1846 static void opt_mb_cmp(const char *arg)
1847 {
1848 mb_cmp = atoi(arg);
1849 }
1850
1851 static void opt_ildct_cmp(const char *arg)
1852 {
1853 ildct_cmp = atoi(arg);
1854 }
1855
1856 static void opt_sub_cmp(const char *arg)
1857 {
1858 sub_cmp = atoi(arg);
1859 }
1860
1861 static void opt_cmp(const char *arg)
1862 {
1863 cmp = atoi(arg);
1864 }
1865
1866 static void opt_pre_cmp(const char *arg)
1867 {
1868 pre_cmp = atoi(arg);
1869 }
1870
1871 static void opt_pre_me(const char *arg)
1872 {
1873 pre_me = atoi(arg);
1874 }
1875
1876 static void opt_lumi_mask(const char *arg)
1877 {
1878 lumi_mask = atof(arg);
1879 }
1880
1881 static void opt_dark_mask(const char *arg)
1882 {
1883 dark_mask = atof(arg);
1884 }
1885
1886 static void opt_scplx_mask(const char *arg)
1887 {
1888 scplx_mask = atof(arg);
1889 }
1890
1891 static void opt_tcplx_mask(const char *arg)
1892 {
1893 tcplx_mask = atof(arg);
1894 }
1895
1896 static void opt_p_mask(const char *arg)
1897 {
1898 p_mask = atof(arg);
1899 }
1900
1901 static void opt_qscale(const char *arg)
1902 {
1903 video_qscale = atof(arg);
1904 if (video_qscale < 0.01 ||
1905 video_qscale > 255) {
1906 fprintf(stderr, "qscale must be >= 0.01 and <= 255\n");
1907 exit(1);
1908 }
1909 }
1910
1911 static void opt_qmin(const char *arg)
1912 {
1913 video_qmin = atoi(arg);
1914 if (video_qmin < 0 ||
1915 video_qmin > 31) {
1916 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1917 exit(1);
1918 }
1919 }
1920
1921 static void opt_qmax(const char *arg)
1922 {
1923 video_qmax = atoi(arg);
1924 if (video_qmax < 0 ||
1925 video_qmax > 31) {
1926 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1927 exit(1);
1928 }
1929 }
1930
1931 static void opt_mb_qmin(const char *arg)
1932 {
1933 video_mb_qmin = atoi(arg);
1934 if (video_mb_qmin < 0 ||
1935 video_mb_qmin > 31) {
1936 fprintf(stderr, "qmin must be >= 1 and <= 31\n");
1937 exit(1);
1938 }
1939 }
1940
1941 static void opt_mb_qmax(const char *arg)
1942 {
1943 video_mb_qmax = atoi(arg);
1944 if (video_mb_qmax < 0 ||
1945 video_mb_qmax > 31) {
1946 fprintf(stderr, "qmax must be >= 1 and <= 31\n");
1947 exit(1);
1948 }
1949 }
1950
1951 static void opt_qdiff(const char *arg)
1952 {
1953 video_qdiff = atoi(arg);
1954 if (video_qdiff < 0 ||
1955 video_qdiff > 31) {
1956 fprintf(stderr, "qdiff must be >= 1 and <= 31\n");
1957 exit(1);
1958 }
1959 }
1960
1961 static void opt_qblur(const char *arg)
1962 {
1963 video_qblur = atof(arg);
1964 }
1965
1966 static void opt_qcomp(const char *arg)
1967 {
1968 video_qcomp = atof(arg);
1969 }
1970
1971 static void opt_rc_initial_cplx(const char *arg)
1972 {
1973 video_rc_initial_cplx = atof(arg);
1974 }
1975 static void opt_b_qfactor(const char *arg)
1976 {
1977 video_b_qfactor = atof(arg);
1978 }
1979 static void opt_i_qfactor(const char *arg)
1980 {
1981 video_i_qfactor = atof(arg);
1982 }
1983 static void opt_b_qoffset(const char *arg)
1984 {
1985 video_b_qoffset = atof(arg);
1986 }
1987 static void opt_i_qoffset(const char *arg)
1988 {
1989 video_i_qoffset = atof(arg);
1990 }
1991
1992 static void opt_ibias(const char *arg)
1993 {
1994 video_intra_quant_bias = atoi(arg);
1995 }
1996 static void opt_pbias(const char *arg)
1997 {
1998 video_inter_quant_bias = atoi(arg);
1999 }
2000
2001 static void opt_packet_size(const char *arg)
2002 {
2003 packet_size= atoi(arg);
2004 }
2005
2006 static void opt_error_rate(const char *arg)
2007 {
2008 error_rate= atoi(arg);
2009 }
2010
2011 static void opt_strict(const char *arg)
2012 {
2013 strict= atoi(arg);
2014 }
2015
2016 static void opt_top_field_first(const char *arg)
2017 {
2018 top_field_first= atoi(arg);
2019 }
2020
2021 static void opt_noise_reduction(const char *arg)
2022 {
2023 noise_reduction= atoi(arg);
2024 }
2025
2026 static void opt_qns(const char *arg)
2027 {
2028 qns= atoi(arg);
2029 }
2030
2031 static void opt_sc_threshold(const char *arg)
2032 {
2033 sc_threshold= atoi(arg);
2034 }
2035
2036 static void opt_thread_count(const char *arg)
2037 {
2038 thread_count= atoi(arg);
2039 #if !defined(HAVE_PTHREADS) && !defined(HAVE_W32THREADS)
2040 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2041 #endif
2042 }
2043
2044 static void opt_audio_bitrate(const char *arg)
2045 {
2046 audio_bit_rate = atoi(arg) * 1000;
2047 }
2048
2049 static void opt_audio_rate(const char *arg)
2050 {
2051 audio_sample_rate = atoi(arg);
2052 }
2053
2054 static void opt_audio_channels(const char *arg)
2055 {
2056 audio_channels = atoi(arg);
2057 }
2058
2059 static void opt_video_device(const char *arg)
2060 {
2061 video_device = av_strdup(arg);
2062 }
2063
2064 static void opt_video_channel(const char *arg)
2065 {
2066 video_channel = strtol(arg, NULL, 0);
2067 }
2068
2069 static void opt_video_standard(const char *arg)
2070 {
2071 video_standard = av_strdup(arg);
2072 }
2073
2074 static void opt_audio_device(const char *arg)
2075 {
2076 audio_device = av_strdup(arg);
2077 }
2078
2079 static void opt_dv1394(const char *arg)
2080 {
2081 video_grab_format = "dv1394";
2082 audio_grab_format = NULL;
2083 }
2084
2085 static void opt_audio_codec(const char *arg)
2086 {
2087 AVCodec *p;
2088
2089 if (!strcmp(arg, "copy")) {
2090 audio_stream_copy = 1;
2091 } else {
2092 p = first_avcodec;
2093 while (p) {
2094 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
2095 break;
2096 p = p->next;
2097 }
2098 if (p == NULL) {
2099 fprintf(stderr, "Unknown audio codec '%s'\n", arg);
2100 exit(1);
2101 } else {
2102 audio_codec_id = p->id;
2103 }
2104 }
2105 }
2106
2107 static void add_frame_hooker(const char *arg)
2108 {
2109 int argc = 0;
2110 char *argv[64];
2111 int i;
2112 char *args = av_strdup(arg);
2113
2114 using_vhook = 1;
2115
2116 argv[0] = strtok(args, " ");
2117 while (argc < 62 && (argv[++argc] = strtok(NULL, " "))) {
2118 }
2119
2120 i = frame_hook_add(argc, argv);
2121
2122 if (i != 0) {
2123 fprintf(stderr, "Failed to add video hook function: %s\n", arg);
2124 exit(1);
2125 }
2126 }
2127
2128 const char *motion_str[] = {
2129 "zero",
2130 "full",
2131 "log",
2132 "phods",
2133 "epzs",
2134 "x1",
2135 NULL,
2136 };
2137
2138 static void opt_motion_estimation(const char *arg)
2139 {
2140 const char **p;
2141 p = motion_str;
2142 for(;;) {
2143 if (!*p) {
2144 fprintf(stderr, "Unknown motion estimation method '%s'\n", arg);
2145 exit(1);
2146 }
2147 if (!strcmp(*p, arg))
2148 break;
2149 p++;
2150 }
2151 me_method = (p - motion_str) + 1;
2152 }
2153
2154 static void opt_video_codec(const char *arg)
2155 {
2156 AVCodec *p;
2157
2158 if (!strcmp(arg, "copy")) {
2159 video_stream_copy = 1;
2160 } else {
2161 p = first_avcodec;
2162 while (p) {
2163 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
2164 break;
2165 p = p->next;
2166 }
2167 if (p == NULL) {
2168 fprintf(stderr, "Unknown video codec '%s'\n", arg);
2169 exit(1);
2170 } else {
2171 video_codec_id = p->id;
2172 }
2173 }
2174 }
2175
2176 static void opt_map(const char *arg)
2177 {
2178 AVStreamMap *m;
2179 const char *p;
2180
2181 p = arg;
2182 m = &stream_maps[nb_stream_maps++];
2183
2184 m->file_index = strtol(arg, (char **)&p, 0);
2185 if (*p)
2186 p++;
2187
2188 m->stream_index = strtol(p, (char **)&p, 0);
2189 }
2190
2191 static void opt_recording_time(const char *arg)
2192 {
2193 recording_time = parse_date(arg, 1);
2194 }
2195
2196 static void opt_start_time(const char *arg)
2197 {
2198 start_time = parse_date(arg, 1);
2199 }
2200
2201 static void opt_input_file(const char *filename)
2202 {
2203 AVFormatContext *ic;
2204 AVFormatParameters params, *ap = &params;
2205 int err, i, ret, rfps, rfps_base;
2206
2207 if (!strcmp(filename, "-"))
2208 filename = "pipe:";
2209
2210 using_stdin |= !strcmp(filename, "pipe:" ) ||
2211 !strcmp( filename, "/dev/stdin" );
2212
2213 /* get default parameters from command line */
2214 memset(ap, 0, sizeof(*ap));
2215 ap->sample_rate = audio_sample_rate;
2216 ap->channels = audio_channels;
2217 ap->frame_rate = frame_rate;
2218 ap->frame_rate_base = frame_rate_base;
2219 ap->width = frame_width;
2220 ap->height = frame_height;
2221 ap->image_format = image_format;
2222 ap->pix_fmt = frame_pix_fmt;
2223
2224 /* open the input file with generic libav function */
2225 err = av_open_input_file(&ic, filename, file_iformat, 0, ap);
2226 if (err < 0) {
2227 print_error(filename, err);
2228 exit(1);
2229 }
2230
2231 /* If not enough info to get the stream parameters, we decode the
2232 first frames to get it. (used in mpeg case for example) */
2233 ret = av_find_stream_info(ic);
2234 if (ret < 0) {
2235 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2236 exit(1);
2237 }
2238
2239 /* if seeking requested, we execute it */
2240 if (start_time != 0) {
2241 int64_t timestamp;
2242
2243 timestamp = start_time;
2244 /* add the stream start time */
2245 if (ic->start_time != AV_NOPTS_VALUE)
2246 timestamp += ic->start_time;
2247 ret = av_seek_frame(ic, -1, timestamp);
2248 if (ret < 0) {
2249 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2250 filename, (double)timestamp / AV_TIME_BASE);
2251 }
2252 /* reset seek info */
2253 start_time = 0;
2254 }
2255
2256 /* update the current parameters so that they match the one of the input stream */
2257 for(i=0;i<ic->nb_streams;i++) {
2258 AVCodecContext *enc = &ic->streams[i]->codec;
2259 switch(enc->codec_type) {
2260 case CODEC_TYPE_AUDIO:
2261 //fprintf(stderr, "\nInput Audio channels: %d", enc->channels);
2262 audio_channels = enc->channels;
2263 audio_sample_rate = enc->sample_rate;
2264 break;
2265 case CODEC_TYPE_VIDEO:
2266 frame_height = enc->height;
2267 frame_width = enc->width;
2268 frame_aspect_ratio = av_q2d(enc->sample_aspect_ratio) * enc->width / enc->height;
2269 frame_pix_fmt = enc->pix_fmt;
2270 rfps = ic->streams[i]->r_frame_rate;
2271 rfps_base = ic->streams[i]->r_frame_rate_base;
2272 enc->workaround_bugs = workaround_bugs;
2273 enc->error_resilience = error_resilience;
2274 enc->error_concealment = error_concealment;
2275 enc->idct_algo = idct_algo;
2276 enc->debug = debug;
2277 enc->debug_mv = debug_mv;
2278 if(bitexact)
2279 enc->flags|= CODEC_FLAG_BITEXACT;
2280
2281 assert(enc->frame_rate_base == rfps_base); // should be true for now
2282 if (enc->frame_rate != rfps) {
2283 fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n",
2284 i, (float)enc->frame_rate / enc->frame_rate_base,
2285 (float)rfps / rfps_base);
2286 }
2287 /* update the current frame rate to match the stream frame rate */
2288 frame_rate = rfps;
2289 frame_rate_base = rfps_base;
2290
2291 enc->rate_emu = rate_emu;
2292 break;
2293 case CODEC_TYPE_DATA:
2294 break;
2295 default:
2296 av_abort();
2297 }
2298 }
2299
2300 input_files[nb_input_files] = ic;
2301 /* dump the file content */
2302 dump_format(ic, nb_input_files, filename, 0);
2303 nb_input_files++;
2304 file_iformat = NULL;
2305 file_oformat = NULL;
2306 image_format = NULL;
2307
2308 rate_emu = 0;
2309 }
2310
2311 static void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr)
2312 {
2313 int has_video, has_audio, i, j;
2314 AVFormatContext *ic;
2315
2316 has_video = 0;
2317 has_audio = 0;
2318 for(j=0;j<nb_input_files;j++) {
2319 ic = input_files[j];
2320 for(i=0;i<ic->nb_streams;i++) {
2321 AVCodecContext *enc = &ic->streams[i]->codec;
2322 switch(enc->codec_type) {
2323 case CODEC_TYPE_AUDIO:
2324 has_audio = 1;
2325 break;
2326 case CODEC_TYPE_VIDEO:
2327 has_video = 1;
2328 break;
2329 default:
2330 av_abort();
2331 }
2332 }
2333 }
2334 *has_video_ptr = has_video;
2335 *has_audio_ptr = has_audio;
2336 }
2337
2338 static void opt_output_file(const char *filename)
2339 {
2340 AVStream *st;
2341 AVFormatContext *oc;
2342 int use_video, use_audio, nb_streams, input_has_video, input_has_audio;
2343 int codec_id;
2344 AVFormatParameters params, *ap = &params;
2345
2346 if (!strcmp(filename, "-"))
2347 filename = "pipe:";
2348
2349 oc = av_mallocz(sizeof(AVFormatContext));
2350
2351 if (!file_oformat) {
2352 file_oformat = guess_format(NULL, filename, NULL);
2353 if (!file_oformat) {
2354 fprintf(stderr, "Unable for find a suitable output format for '%s'\n",
2355 filename);
2356 exit(1);
2357 }
2358 }
2359
2360 oc->oformat = file_oformat;
2361
2362 if (!strcmp(file_oformat->name, "ffm") &&
2363 strstart(filename, "http:", NULL)) {
2364 /* special case for files sent to ffserver: we get the stream
2365 parameters from ffserver */
2366 if (read_ffserver_streams(oc, filename) < 0) {
2367 fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
2368 exit(1);
2369 }
2370 } else {
2371 use_video = file_oformat->video_codec != CODEC_ID_NONE;
2372 use_audio = file_oformat->audio_codec != CODEC_ID_NONE;
2373
2374 /* disable if no corresponding type found and at least one
2375 input file */
2376 if (nb_input_files > 0) {
2377 check_audio_video_inputs(&input_has_video, &input_has_audio);
2378 if (!input_has_video)
2379 use_video = 0;
2380 if (!input_has_audio)
2381 use_audio = 0;
2382 }
2383
2384 /* manual disable */
2385 if (audio_disable) {
2386 use_audio = 0;
2387 }
2388 if (video_disable) {
2389 use_video = 0;
2390 }
2391
2392 nb_streams = 0;
2393 if (use_video) {
2394 AVCodecContext *video_enc;
2395
2396 st = av_mallocz(sizeof(AVStream));
2397 if (!st) {
2398 fprintf(stderr, "Could not alloc stream\n");
2399 exit(1);
2400 }
2401 avcodec_get_context_defaults(&st->codec);
2402 #if defined(HAVE_PTHREADS) || defined(HAVE_W32THREADS)
2403 if(thread_count>1)
2404 avcodec_thread_init(&st->codec, thread_count);
2405 #endif
2406
2407 video_enc = &st->codec;
2408
2409 if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp"))
2410 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2411 if (video_stream_copy) {
2412 st->stream_copy = 1;
2413 video_enc->codec_type = CODEC_TYPE_VIDEO;
2414 } else {
2415 char *p;
2416 int i;
2417
2418 codec_id = file_oformat->video_codec;
2419 if (video_codec_id != CODEC_ID_NONE)
2420 codec_id = video_codec_id;
2421
2422 video_enc->codec_id = codec_id;
2423
2424 video_enc->bit_rate = video_bit_rate;
2425 video_enc->bit_rate_tolerance = video_bit_rate_tolerance;
2426 video_enc->frame_rate = frame_rate;
2427 video_enc->frame_rate_base = frame_rate_base;
2428
2429 video_enc->width = frame_width;
2430 video_enc->height = frame_height;
2431 video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
2432 video_enc->pix_fmt = frame_pix_fmt;
2433
2434 if (!intra_only)
2435 video_enc->gop_size = gop_size;
2436 else
2437 video_enc->gop_size = 0;
2438 if (video_qscale || same_quality) {
2439 video_enc->flags |= CODEC_FLAG_QSCALE;
2440 st->quality = FF_QP2LAMBDA * video_qscale;
2441 }
2442
2443 if(intra_matrix)
2444 video_enc->intra_matrix = intra_matrix;
2445 if(inter_matrix)
2446 video_enc->inter_matrix = inter_matrix;
2447
2448 if(bitexact)
2449 video_enc->flags |= CODEC_FLAG_BITEXACT;
2450
2451 video_enc->mb_decision = mb_decision;
2452 video_enc->mb_cmp = mb_cmp;
2453 video_enc->ildct_cmp = ildct_cmp;
2454 video_enc->me_sub_cmp = sub_cmp;
2455 video_enc->me_cmp = cmp;
2456 video_enc->me_pre_cmp = pre_cmp;
2457 video_enc->pre_me = pre_me;
2458 video_enc->lumi_masking = lumi_mask;
2459 video_enc->dark_masking = dark_mask;
2460 video_enc->spatial_cplx_masking = scplx_mask;
2461 video_enc->temporal_cplx_masking = tcplx_mask;
2462 video_enc->p_masking = p_mask;
2463 video_enc->quantizer_noise_shaping= qns;
2464
2465 if (use_umv) {
2466 video_enc->flags |= CODEC_FLAG_H263P_UMV;
2467 }
2468 if (use_aic) {
2469 video_enc->flags |= CODEC_FLAG_H263P_AIC;
2470 }
2471 if (use_aiv) {
2472 video_enc->flags |= CODEC_FLAG_H263P_AIV;
2473 }
2474 if (use_4mv) {
2475 video_enc->flags |= CODEC_FLAG_4MV;
2476 }
2477 if (use_obmc) {
2478 video_enc->flags |= CODEC_FLAG_OBMC;
2479 }
2480
2481 if(use_part) {
2482 video_enc->flags |= CODEC_FLAG_PART;
2483 }
2484 if (use_alt_scan) {
2485 video_enc->flags |= CODEC_FLAG_ALT_SCAN;
2486 }
2487 if (use_trell) {
2488 video_enc->flags |= CODEC_FLAG_TRELLIS_QUANT;
2489 }
2490 if (use_scan_offset) {
2491 video_enc->flags |= CODEC_FLAG_SVCD_SCAN_OFFSET;
2492 }
2493 if (closed_gop) {
2494 video_enc->flags |= CODEC_FLAG_CLOSED_GOP;
2495 }
2496 if (b_frames) {
2497 video_enc->max_b_frames = b_frames;
2498 video_enc->b_frame_strategy = 0;
2499 video_enc->b_quant_factor = 2.0;
2500 }
2501 if (do_interlace_dct) {
2502 video_enc->flags |= CODEC_FLAG_INTERLACED_DCT;
2503 }
2504 if (do_interlace_me) {
2505 video_enc->flags |= CODEC_FLAG_INTERLACED_ME;
2506 }
2507 video_enc->qmin = video_qmin;
2508 video_enc->qmax = video_qmax;
2509 video_enc->mb_qmin = video_mb_qmin;
2510 video_enc->mb_qmax = video_mb_qmax;
2511 video_enc->max_qdiff = video_qdiff;
2512 video_enc->qblur = video_qblur;
2513 video_enc->qcompress = video_qcomp;
2514 video_enc->rc_eq = video_rc_eq;
2515 video_enc->debug = debug;
2516 video_enc->debug_mv = debug_mv;
2517 video_enc->thread_count = thread_count;
2518 p= video_rc_override_string;
2519 for(i=0; p; i++){
2520 int start, end, q;
2521 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
2522 if(e!=3){
2523 fprintf(stderr, "error parsing rc_override\n");
2524 exit(1);
2525 }
2526 video_enc->rc_override=
2527 av_realloc(video_enc->rc_override,
2528 sizeof(RcOverride)*(i+1));
2529 video_enc->rc_override[i].start_frame= start;
2530 video_enc->rc_override[i].end_frame = end;
2531 if(q>0){
2532 video_enc->rc_override[i].qscale= q;
2533 video_enc->rc_override[i].quality_factor= 1.0;
2534 }
2535 else{
2536 video_enc->rc_override[i].qscale= 0;
2537 video_enc->rc_override[i].quality_factor= -q/100.0;
2538 }
2539 p= strchr(p, '/');
2540 if(p) p++;
2541 }
2542 video_enc->rc_override_count=i;
2543
2544 video_enc->rc_max_rate = video_rc_max_rate;
2545 video_enc->rc_min_rate = video_rc_min_rate;
2546 video_enc->rc_buffer_size = video_rc_buffer_size;
2547 video_enc->rc_buffer_aggressivity= video_rc_buffer_aggressivity;
2548 video_enc->rc_initial_cplx= video_rc_initial_cplx;
2549 video_enc->i_quant_factor = video_i_qfactor;
2550 video_enc->b_quant_factor = video_b_qfactor;
2551 video_enc->i_quant_offset = video_i_qoffset;
2552 video_enc->b_quant_offset = video_b_qoffset;
2553 video_enc->intra_quant_bias = video_intra_quant_bias;
2554 video_enc->inter_quant_bias = video_inter_quant_bias;
2555 video_enc->dct_algo = dct_algo;
2556 video_enc->idct_algo = idct_algo;
2557 video_enc->strict_std_compliance = strict;
2558 video_enc->error_rate = error_rate;
2559 video_enc->noise_reduction= noise_reduction;
2560 video_enc->scenechange_threshold= sc_threshold;
2561 if(packet_size){
2562 video_enc->rtp_mode= 1;
2563 video_enc->rtp_payload_size= packet_size;
2564 }
2565
2566 if (do_psnr)
2567 video_enc->flags|= CODEC_FLAG_PSNR;
2568
2569 video_enc->me_method = me_method;
2570
2571 /* two pass mode */
2572 if (do_pass) {
2573 if (do_pass == 1) {
2574 video_enc->flags |= CODEC_FLAG_PASS1;
2575 } else {
2576 video_enc->flags |= CODEC_FLAG_PASS2;
2577 }
2578 }
2579 }
2580 oc->streams[nb_streams] = st;
2581 nb_streams++;
2582 }
2583
2584 if (use_audio) {
2585 AVCodecContext *audio_enc;
2586
2587 st = av_mallocz(sizeof(AVStream));
2588 if (!st) {
2589 fprintf(stderr, "Could not alloc stream\n");
2590 exit(1);
2591 }
2592 avcodec_get_context_defaults(&st->codec);
2593 #if defined(HAVE_PTHREADS) || defined(HAVE_W32THREADS)
2594 if(thread_count>1)
2595 avcodec_thread_init(&st->codec, thread_count);
2596 #endif
2597
2598 audio_enc = &st->codec;
2599 audio_enc->codec_type = CODEC_TYPE_AUDIO;
2600
2601 if(!strcmp(file_oformat->name, "mp4") || !strcmp(file_oformat->name, "mov") || !strcmp(file_oformat->name, "3gp"))
2602 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
2603 if (audio_stream_copy) {
2604 st->stream_copy = 1;
2605 } else {
2606 codec_id = file_oformat->audio_codec;
2607 if (audio_codec_id != CODEC_ID_NONE)
2608 codec_id = audio_codec_id;
2609 audio_enc->codec_id = codec_id;
2610
2611 audio_enc->bit_rate = audio_bit_rate;
2612 audio_enc->sample_rate = audio_sample_rate;
2613 audio_enc->strict_std_compliance = strict;
2614 audio_enc->thread_count = thread_count;
2615 /* For audio codecs other than AC3 we limit */
2616 /* the number of coded channels to stereo */
2617 if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
2618 audio_enc->channels = 2;
2619 } else
2620 audio_enc->channels = audio_channels;
2621 }
2622 oc->streams[nb_streams] = st;
2623 nb_streams++;
2624 }
2625
2626 oc->nb_streams = nb_streams;
2627
2628 if (!nb_streams) {
2629 fprintf(stderr, "No audio or video streams available\n");
2630 exit(1);
2631 }
2632
2633 if (str_title)
2634 pstrcpy(oc->title, sizeof(oc->title), str_title);
2635 if (str_author)
2636 pstrcpy(oc->author, sizeof(oc->author), str_author);
2637 if (str_copyright)
2638 pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright);
2639 if (str_comment)
2640 pstrcpy(oc->comment, sizeof(oc->comment), str_comment);
2641 }
2642
2643 output_files[nb_output_files++] = oc;
2644
2645 strcpy(oc->filename, filename);
2646
2647 /* check filename in case of an image number is expected */
2648 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2649 if (filename_number_test(oc->filename) < 0) {
2650 print_error(oc->filename, AVERROR_NUMEXPECTED);
2651 exit(1);
2652 }
2653 }
2654
2655 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2656 /* test if it already exists to avoid loosing precious files */
2657 if (!file_overwrite &&
2658 (strchr(filename, ':') == NULL ||
2659 strstart(filename, "file:", NULL))) {
2660 if (url_exist(filename)) {
2661 int c;
2662
2663 if ( !using_stdin ) {
2664 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
2665 fflush(stderr);
2666 c = getchar();
2667 if (toupper(c) != 'Y') {
2668 fprintf(stderr, "Not overwriting - exiting\n");
2669 exit(1);
2670 }
2671 }
2672 else {
2673 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
2674 exit(1);
2675 }
2676 }
2677 }
2678
2679 /* open the file */
2680 if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
2681 fprintf(stderr, "Could not open '%s'\n", filename);
2682 exit(1);
2683 }
2684 }
2685
2686 memset(ap, 0, sizeof(*ap));
2687 ap->image_format = image_format;
2688 if (av_set_parameters(oc, ap) < 0) {
2689 fprintf(stderr, "%s: Invalid encoding parameters\n",
2690 oc->filename);
2691 exit(1);
2692 }
2693
2694 /* reset some options */
2695 file_oformat = NULL;
2696 file_iformat = NULL;
2697 image_format = NULL;
2698 audio_disable = 0;
2699 video_disable = 0;
2700 audio_codec_id = CODEC_ID_NONE;
2701 video_codec_id = CODEC_ID_NONE;
2702 audio_stream_copy = 0;
2703 video_stream_copy = 0;
2704 }
2705
2706 /* prepare dummy protocols for grab */
2707 static void prepare_grab(void)
2708 {
2709 int has_video, has_audio, i, j;
2710 AVFormatContext *oc;
2711 AVFormatContext *ic;
2712 AVFormatParameters vp1, *vp = &vp1;
2713 AVFormatParameters ap1, *ap = &ap1;
2714
2715 /* see if audio/video inputs are needed */
2716 has_video = 0;
2717 has_audio = 0;
2718 memset(ap, 0, sizeof(*ap));
2719 memset(vp, 0, sizeof(*vp));
2720 for(j=0;j<nb_output_files;j++) {
2721 oc = output_files[j];
2722 for(i=0;i<oc->nb_streams;i++) {
2723 AVCodecContext *enc = &oc->streams[i]->codec;
2724 switch(enc->codec_type) {
2725 case CODEC_TYPE_AUDIO:
2726 if (enc->sample_rate > ap->sample_rate)
2727 ap->sample_rate = enc->sample_rate;
2728 if (enc->channels > ap->channels)
2729 ap->channels = enc->channels;
2730 has_audio = 1;
2731 break;
2732 case CODEC_TYPE_VIDEO:
2733 if (enc->width > vp->width)
2734 vp->width = enc->width;
2735 if (enc->height > vp->height)
2736 vp->height = enc->height;
2737
2738 assert(enc->frame_rate_base == DEFAULT_FRAME_RATE_BASE);
2739 if (enc->frame_rate > vp->frame_rate){
2740 vp->frame_rate = enc->frame_rate;
2741 vp->frame_rate_base = enc->frame_rate_base;
2742 }
2743 has_video = 1;
2744 break;
2745 default:
2746 av_abort();
2747 }
2748 }
2749 }
2750
2751 if (has_video == 0 && has_audio == 0) {
2752 fprintf(stderr, "Output file must have at least one audio or video stream\n");
2753 exit(1);
2754 }
2755
2756 if (has_video) {
2757 AVInputFormat *fmt1;
2758 fmt1 = av_find_input_format(video_grab_format);
2759 vp->device = video_device;
2760 vp->channel = video_channel;
2761 vp->standard = video_standard;
2762 if (av_open_input_file(&ic, "", fmt1, 0, vp) < 0) {
2763 fprintf(stderr, "Could not find video grab device\n");
2764 exit(1);
2765 }
2766 /* If not enough info to get the stream parameters, we decode the
2767 first frames to get it. */
2768 if ((ic->ctx_flags & AVFMTCTX_NOHEADER) && av_find_stream_info(ic) < 0) {
2769 fprintf(stderr, "Could not find video grab parameters\n");
2770 exit(1);
2771 }
2772 /* by now video grab has one stream */
2773 ic->streams[0]->r_frame_rate = vp->frame_rate;
2774 ic->streams[0]->r_frame_rate_base = vp->frame_rate_base;
2775 input_files[nb_input_files] = ic;
2776 dump_format(ic, nb_input_files, "", 0);
2777 nb_input_files++;
2778 }
2779 if (has_audio && audio_grab_format) {
2780 AVInputFormat *fmt1;
2781 fmt1 = av_find_input_format(audio_grab_format);
2782 ap->device = audio_device;
2783 if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) {
2784 fprintf(stderr, "Could not find audio grab device\n");
2785 exit(1);
2786 }
2787 input_files[nb_input_files] = ic;
2788 dump_format(ic, nb_input_files, "", 0);
2789 nb_input_files++;
2790 }
2791 }
2792
2793 /* same option as mencoder */
2794 static void opt_pass(const char *pass_str)
2795 {
2796 int pass;
2797 pass = atoi(pass_str);
2798 if (pass != 1 && pass != 2) {
2799 fprintf(stderr, "pass number can be only 1 or 2\n");
2800 exit(1);
2801 }
2802 do_pass = pass;
2803 }
2804
2805 #if defined(CONFIG_WIN32) || defined(CONFIG_OS2)
2806 static int64_t getutime(void)
2807 {
2808 return av_gettime();
2809 }
2810 #else
2811 static int64_t getutime(void)
2812 {
2813 struct rusage rusage;
2814
2815 getrusage(RUSAGE_SELF, &rusage);
2816 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2817 }
2818 #endif
2819
2820 extern int ffm_nopts;
2821
2822 static void opt_bitexact(void)
2823 {
2824 bitexact=1;
2825 /* disable generate of real time pts in ffm (need to be supressed anyway) */
2826 ffm_nopts = 1;
2827 }
2828
2829 static void show_formats(void)
2830 {
2831 AVInputFormat *ifmt;
2832 AVOutputFormat *ofmt;
2833 AVImageFormat *image_fmt;
2834 URLProtocol *up;
2835 AVCodec *p;
2836 const char **pp;
2837
2838 printf("Output audio/video file formats:");
2839 for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) {
2840 printf(" %s", ofmt->name);
2841 }
2842 printf("\n");
2843
2844 printf("Input audio/video file formats:");
2845 for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) {
2846 printf(" %s", ifmt->name);
2847 }
2848 printf("\n");
2849
2850 printf("Output image formats:");
2851 for(image_fmt = first_image_format; image_fmt != NULL;
2852 image_fmt = image_fmt->next) {
2853 if (image_fmt->img_write)
2854 printf(" %s", image_fmt->name);
2855 }
2856 printf("\n");
2857
2858 printf("Input image formats:");
2859 for(image_fmt = first_image_format; image_fmt != NULL;
2860 image_fmt = image_fmt->next) {
2861 if (image_fmt->img_read)
2862 printf(" %s", image_fmt->name);
2863 }
2864 printf("\n");
2865
2866 printf("Codecs:\n");
2867 printf(" Encoders:");
2868 for(p = first_avcodec; p != NULL; p = p->next) {
2869 if (p->encode)
2870 printf(" %s", p->name);
2871 }
2872 printf("\n");
2873
2874 printf(" Decoders:");
2875 for(p = first_avcodec; p != NULL; p = p->next) {
2876 if (p->decode)
2877 printf(" %s", p->name);
2878 }
2879 printf("\n");
2880
2881 printf("Supported file protocols:");
2882 for(up = first_protocol; up != NULL; up = up->next)
2883 printf(" %s:", up->name);
2884 printf("\n");
2885
2886 printf("Frame size, frame rate abbreviations: ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
2887 printf("Motion estimation methods:");
2888 pp = motion_str;
2889 while (*pp) {
2890 printf(" %s", *pp);
2891 if ((pp - motion_str + 1) == ME_ZERO)
2892 printf("(fastest)");
2893 else if ((pp - motion_str + 1) == ME_FULL)
2894 printf("(slowest)");
2895 else if ((pp - motion_str + 1) == ME_EPZS)
2896 printf("(default)");
2897 pp++;
2898 }
2899 printf("\n");
2900 exit(1);
2901 }
2902
2903 void parse_matrix_coeffs(uint16_t *dest, const char *str)
2904 {
2905 int i;
2906 const char *p = str;
2907 for(i = 0;; i++) {
2908 dest[i] = atoi(p);
2909 if(i == 63)
2910 break;
2911 p = strchr(p, ',');
2912 if(!p) {
2913 fprintf(stderr, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
2914 exit(1);
2915 }
2916 p++;
2917 }
2918 }
2919
2920 void opt_inter_matrix(const char *arg)
2921 {
2922 inter_matrix = av_mallocz(sizeof(uint16_t) * 64);
2923 parse_matrix_coeffs(inter_matrix, arg);
2924 }
2925
2926 void opt_intra_matrix(const char *arg)
2927 {
2928 intra_matrix = av_mallocz(sizeof(uint16_t) * 64);
2929 parse_matrix_coeffs(intra_matrix, arg);
2930 }
2931
2932 static void opt_target(const char *arg)
2933 {
2934 int norm = -1;
2935
2936 if(!strncmp(arg, "pal-", 4)) {
2937 norm = 0;
2938 arg += 4;
2939 } else if(!strncmp(arg, "ntsc-", 5)) {
2940 norm = 1;
2941 arg += 5;
2942 } else {
2943 int fr;
2944 /* Calculate FR via float to avoid int overflow */
2945 fr = (int)(frame_rate * 1000.0 / frame_rate_base);
2946 if(fr == 25000) {
2947 norm = 0;
2948 } else if((fr == 29970) || (fr == 23976)) {
2949 norm = 1;
2950 } else {
2951 /* Try to determine PAL/NTSC by peeking in the input files */
2952 if(nb_input_files) {
2953 int i, j;
2954 for(j = 0; j < nb_input_files; j++) {
2955 for(i = 0; i < input_files[j]->nb_streams; i++) {
2956 AVCodecContext *c = &input_files[j]->streams[i]->codec;
2957 if(c->codec_type != CODEC_TYPE_VIDEO)
2958 continue;
2959 fr = c->frame_rate * 1000 / c->frame_rate_base;
2960 if(fr == 25000) {
2961 norm = 0;
2962 break;
2963 } else if((fr == 29970) || (fr == 23976)) {
2964 norm = 1;
2965 break;
2966 }
2967 }
2968 if(norm >= 0)
2969 break;
2970 }
2971 }
2972 }
2973 if(verbose && norm >= 0)
2974 printf("Assuming %s for target.\n", norm ? "NTSC" : "PAL");
2975 }
2976
2977 if(norm < 0) {
2978 fprintf(stderr, "Could not determine norm (PAL/NTSC) for target.\n");
2979 fprintf(stderr, "Please prefix target with \"pal-\" or \"ntsc-\",\n");
2980 fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
2981 exit(1);
2982 }
2983
2984 if(!strcmp(arg, "vcd")) {
2985
2986 opt_video_codec("mpeg1video");
2987 opt_audio_codec("mp2");
2988 opt_format("vcd");
2989
2990 opt_frame_size(norm ? "352x240" : "352x288");
2991
2992 video_bit_rate = 1150000;
2993 video_rc_max_rate = 1150000;
2994 video_rc_min_rate = 1150000;
2995 video_rc_buffer_size = 40*1024*8;
2996
2997 audio_bit_rate = 224000;
2998 audio_sample_rate = 44100;
2999
3000 } else if(!strcmp(arg, "svcd")) {
3001
3002 opt_video_codec("mpeg2video");
3003 opt_audio_codec("mp2");
3004 opt_format("vcd");
3005
3006 opt_frame_size(norm ? "480x480" : "480x576");
3007 opt_gop_size(norm ? "18" : "15");
3008
3009 video_bit_rate = 2040000;
3010 video_rc_max_rate = 2516000;
3011 video_rc_min_rate = 0; //1145000;
3012 video_rc_buffer_size = 224*1024*8;
3013 use_scan_offset = 1;
3014
3015 audio_bit_rate = 224000;
3016 audio_sample_rate = 44100;
3017
3018 } else if(!strcmp(arg, "dvd")) {
3019
3020 opt_video_codec("mpeg2video");
3021 opt_audio_codec("ac3");
3022 opt_format("vob");
3023
3024 opt_frame_size(norm ? "720x480" : "720x576");
3025 opt_gop_size(norm ? "18" : "15");
3026
3027 video_bit_rate = 6000000;
3028 video_rc_max_rate = 9000000;
3029 video_rc_min_rate = 0; //1500000;
3030 video_rc_buffer_size = 224*1024*8;
3031
3032 audio_bit_rate = 448000;
3033 audio_sample_rate = 48000;
3034
3035 } else {
3036 fprintf(stderr, "Unknown target: %s\n", arg);
3037 exit(1);
3038 }
3039 }
3040
3041 const OptionDef options[] = {
3042 /* main options */
3043 { "L", 0, {(void*)show_license}, "show license" },
3044 { "h", 0, {(void*)show_help}, "show help" },
3045 { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." },
3046 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3047 { "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
3048 { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" },
3049 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
3050 { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" },
3051 { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
3052 { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
3053 { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" },
3054 { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" },
3055 { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" },
3056 { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" },
3057 { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3058 { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3059 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
3060 "add timings for benchmarking" },
3061 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
3062 "dump each input packet" },
3063 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
3064 "when dumping packets, also dump the payload" },
3065 { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" },
3066 { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
3067 { "loop", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
3068 { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
3069 { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\" or \"dvd\")", "type" },
3070 { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3071
3072 /* video options */
3073 { "b", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
3074 { "r", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_rate}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
3075 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3076 { "aspect", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_aspect_ratio}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
3077 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3078 { "croptop", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" },
3079 { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" },
3080 { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" },
3081 { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" },
3082 { "g", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" },
3083 { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
3084 { "vn", OPT_BOOL | OPT_VIDEO, {(void*)&video_disable}, "disable video" },
3085 { "qscale", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" },
3086 { "qmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" },
3087 { "qmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" },
3088 { "mbqmin", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmin}, "min macroblock quantiser scale (VBR)", "q" },
3089 { "mbqmax", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_qmax}, "max macroblock quantiser scale (VBR)", "q" },
3090 { "qdiff", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" },
3091 { "qblur", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" },
3092 { "qcomp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" },
3093 { "rc_init_cplx", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_rc_initial_cplx}, "initial complexity for 1-pass encoding", "complexity" },
3094 { "b_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qfactor}, "qp factor between p and b frames", "factor" },
3095 { "i_qfactor", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qfactor}, "qp factor between p and i frames", "factor" },
3096 { "b_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_qoffset}, "qp offset between p and b frames", "offset" },
3097 { "i_qoffset", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_i_qoffset}, "qp offset between p and i frames", "offset" },
3098 { "ibias", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_ibias}, "intra quant bias", "bias" },
3099 { "pbias", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pbias}, "inter quant bias", "bias" },
3100 // { "b_strategy", HAS_ARG | OPT_EXPERT, {(void*)opt_b_strategy}, "dynamic b frame selection strategy", "strategy" },
3101 { "rc_eq", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_eq}, "set rate control equation", "equation" },
3102 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_video_rc_override_string}, "rate control override for specific intervals", "override" },
3103 { "bt", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" },
3104 { "maxrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" },
3105 { "minrate", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" },
3106 { "bufsize", HAS_ARG | OPT_VIDEO, {(void*)opt_video_buffer_size}, "set ratecontrol buffere size (in kByte)", "size" },
3107 { "vcodec", HAS_ARG | OPT_VIDEO, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
3108 { "me", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_motion_estimation}, "set motion estimation method",
3109 "method" },
3110 { "dct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dct_algo}, "set dct algo", "algo" },
3111 { "idct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_idct_algo}, "set idct algo", "algo" },
3112 { "er", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_resilience}, "set error resilience", "n" },
3113 { "ec", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_concealment}, "set error concealment", "bit_mask" },
3114 { "bf", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_frames}, "use 'frames' B frames", "frames" },
3115 { "hq", OPT_BOOL, {(void*)&mb_decision}, "activate high quality settings" },
3116 { "mbd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_decision}, "macroblock decision", "mode" },
3117 { "mbcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_cmp}, "macroblock compare function", "cmp function" },
3118 { "ildctcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_ildct_cmp}, "ildct compare function", "cmp function" },
3119 { "subcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_sub_cmp}, "subpel compare function", "cmp function" },
3120 { "cmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_cmp}, "fullpel compare function", "cmp function" },
3121 { "precmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_cmp}, "pre motion estimation compare function", "cmp function" },
3122 { "preme", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_me}, "pre motion estimation", "" },
3123 { "lumi_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lumi_mask}, "luminance masking", "" },
3124 { "dark_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dark_mask}, "darkness masking", "" },
3125 { "scplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_scplx_mask}, "spatial complexity masking", "" },
3126 { "tcplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_tcplx_mask}, "teporal complexity masking", "" },
3127 { "p_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_p_mask}, "inter masking", "" },
3128 { "4mv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_4mv}, "use four motion vector by macroblock (MPEG4)" },
3129 { "obmc", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_obmc}, "use overlapped block motion compensation (h263+)" },
3130 { "part", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_part}, "use data partitioning (MPEG4)" },
3131 { "bug", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" },
3132 { "ps", HAS_ARG | OPT_EXPERT, {(void*)opt_packet_size}, "set packet size in bits", "size" },
3133 { "error", HAS_ARG | OPT_EXPERT, {(void*)opt_error_rate}, "error rate", "rate" },
3134 { "strict", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_strict}, "how strictly to follow the standarts", "strictness" },
3135 { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quality},
3136 "use same video quality as source (implies VBR)" },
3137 { "pass", HAS_ARG | OPT_VIDEO, {(void*)&opt_pass}, "select the pass number (1 or 2)", "n" },
3138 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename}, "select two pass log file name", "file" },
3139 { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
3140 "deinterlace pictures" },
3141 { "ildct", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_interlace_dct},
3142 "force interlaced dct support in encoder (MPEG2/MPEG4)" },
3143 { "ilme", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_interlace_me},
3144 "force interlacied me support in encoder MPEG2" },
3145 { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
3146 { "vstats", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_vstats}, "dump video coding statistics to file" },
3147 { "vhook", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)add_frame_hooker}, "insert video processing module", "module" },
3148 { "aic", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aic}, "enable Advanced intra coding (h263+)" },
3149 { "aiv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_aiv}, "enable Alternative inter vlc (h263+)" },
3150 { "umv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_umv}, "enable Unlimited Motion Vector (h263+)" },
3151 { "alt", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_alt_scan}, "enable alternate scantable (mpeg2)" },
3152 { "trell", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_trell}, "enable trellis quantization" },
3153 { "cgop", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&closed_gop}, "closed gop" },
3154 { "scan_offset", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_scan_offset}, "enable SVCD Scan Offset placeholder" },
3155 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_intra_matrix}, "specify intra matrix coeffs", "matrix" },
3156 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_inter_matrix}, "specify inter matrix coeffs", "matrix" },
3157 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_top_field_first}, "top=1/bottom=0/auto=-1 field first", "" },
3158 { "nr", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_noise_reduction}, "noise reduction", "" },
3159 { "qns", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_qns}, "quantization noise shaping", "" },
3160 { "sc_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_sc_threshold}, "scene change threshold", "threshold" },
3161
3162 /* audio options */
3163 { "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
3164 { "ar", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" },
3165 { "ac", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_channels}, "set number of audio channels", "channels" },
3166 { "an", OPT_BOOL | OPT_AUDIO, {(void*)&audio_disable}, "disable audio" },
3167 { "acodec", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
3168
3169 /* grab options */
3170 { "vd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_device}, "set video grab device", "device" },
3171 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "set video grab channel (DV1394 only)", "channel" },
3172 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "set television standard (NTSC, PAL (SECAM))", "standard" },
3173 { "dv1394", OPT_EXPERT | OPT_GRAB, {(void*)opt_dv1394}, "set DV1394 grab", "" },
3174 { "ad", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_GRAB, {(void*)opt_audio_device}, "set audio device", "device" },
3175 { NULL, },
3176 };
3177
3178 static void show_banner(void)
3179 {
3180 printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000-2003 Fabrice Bellard\n");
3181 }
3182
3183 static void show_license(void)
3184 {
3185 show_banner();
3186 printf(
3187 "This library is free software; you can redistribute it and/or\n"
3188 "modify it under the terms of the GNU Lesser General Public\n"
3189 "License as published by the Free Software Foundation; either\n"
3190 "version 2 of the License, or (at your option) any later version.\n"
3191 "\n"
3192 "This library is distributed in the hope that it will be useful,\n"
3193 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
3194 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
3195 "Lesser General Public License for more details.\n"
3196 "\n"
3197 "You should have received a copy of the GNU Lesser General Public\n"
3198 "License along with this library; if not, write to the Free Software\n"
3199 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
3200 );
3201 exit(1);
3202 }
3203
3204 static void show_help(void)
3205 {
3206 show_banner();
3207 printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"
3208 "Hyper fast Audio and Video encoder\n");
3209 printf("\n");
3210 show_help_options<