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Reimplemented the way glyphs are rendered in YUVA mode.
[vlc/solaris.git] / modules / demux / nuv.c
blob853544d6e1852e12d62658570fb2228088f32028
1 /*****************************************************************************
2 * nuv.c:
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gertjan Van Droogenbroeck <gertjanvd _PLUS_ vlc _AT_ gmail _DOT_ com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28 #ifdef HAVE_CONFIG_H
29 # include "config.h"
30 #endif
31
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_demux.h>
35
36 /* TODO:
37 * - test
38 */
39
40 /*****************************************************************************
41 * Module descriptor
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
45
46 vlc_module_begin ()
47 set_category( CAT_INPUT )
48 set_subcategory( SUBCAT_INPUT_DEMUX )
49 set_description( N_("Nuv demuxer") )
50 set_capability( "demux", 145 )
51 set_callbacks( Open, Close )
52 add_shortcut( "nuv" )
53 vlc_module_end ()
54
55 /*****************************************************************************
56 * Local prototypes
57 *****************************************************************************/
58 static int Demux ( demux_t * );
59 static int Control( demux_t *, int, va_list );
60
61 /* */
62 typedef struct
63 {
64 int64_t i_time;
65 int64_t i_offset;
66
67 } demux_index_entry_t;
68
69 typedef struct
70 {
71 int i_idx;
72 int i_idx_max;
73
74 demux_index_entry_t *idx;
75 } demux_index_t;
76
77
78 static void demux_IndexInit( demux_index_t * );
79 static void demux_IndexClean( demux_index_t * );
80 static void demux_IndexAppend( demux_index_t *,
81 int64_t i_time, int64_t i_offset );
82 /* Convert a time into offset */
83 static int64_t demux_IndexConvertTime( demux_index_t *, int64_t i_time );
84 /* Find the nearest offset in the index */
85 static int64_t demux_IndexFindOffset( demux_index_t *, int64_t i_offset );
86
87
88 /* */
89 typedef struct
90 {
91 char id[12]; /* "NuppelVideo\0" or "MythTVVideo\0" */
92 char version[5]; /* "x.xx\0" */
93
94 int i_width;
95 int i_height;
96 int i_width_desired;
97 int i_height_desired;
98
99 char i_mode; /* P progressive, I interlaced */
100
101 double d_aspect; /* 1.0 squared pixel */
102 double d_fps;
103
104 int i_video_blocks; /* 0 no video, -1 unknown */
105 int i_audio_blocks;
106 int i_text_blocks;
107
108 int i_keyframe_distance;
109
110 } header_t;
111
112 #define NUV_FH_SIZE 12
113 typedef struct
114 {
115 char i_type; /* A: audio, V: video, S: sync; T: test
116 R: Seekpoint (string:RTjjjjjjjj)
117 D: Extra data for codec
118 X: extended data Q: seektable */
119 char i_compression; /* V: 0 uncompressed
120 1 RTJpeg
121 2 RTJpeg+lzo
122 N black frame
123 L copy last
124 A: 0 uncompressed (44100 1-bits, 2ch)
125 1 lzo
126 2 layer 2
127 3 layer 3
128 F flac
129 S shorten
130 N null frame loudless
131 L copy last
132 S: B audio and vdeo sync point
133 A audio sync info (timecode == effective
134 dsp frequency*100)
135 V next video sync (timecode == next video
136 frame num)
137 S audio,video,text correlation */
138 char i_keyframe; /* 0 keyframe, else no no key frame */
139 uint8_t i_filters; /* 0x01: gauss 5 pixel (8,2,2,2,2)/16
140 0x02: gauss 5 pixel (8,1,1,1,1)/12
141 0x04: cartoon filter */
142
143 int i_timecode; /* ms */
144
145 int i_length; /* V,A,T: length of following data
146 S: length of packet correl */
147 } frame_header_t;
148
149 typedef struct
150 {
151 int i_version;
152 vlc_fourcc_t i_video_fcc;
153
154 vlc_fourcc_t i_audio_fcc;
155 int i_audio_sample_rate;
156 int i_audio_bits_per_sample;
157 int i_audio_channels;
158 int i_audio_compression_ratio;
159 int i_audio_quality;
160 int i_rtjpeg_quality;
161 int i_rtjpeg_luma_filter;
162 int i_rtjpeg_chroma_filter;
163 int i_lavc_bitrate;
164 int i_lavc_qmin;
165 int i_lavc_qmax;
166 int i_lavc_maxqdiff;
167 int64_t i_seektable_offset;
168 int64_t i_keyframe_adjust_offset;
169
170 } extended_header_t;
171
172 struct demux_sys_t
173 {
174 header_t hdr;
175 extended_header_t exh;
176
177 int64_t i_pcr;
178 es_out_id_t *p_es_video;
179 int i_extra_f;
180 uint8_t *p_extra_f;
181
182 es_out_id_t *p_es_audio;
183
184 /* index */
185 demux_index_t idx;
186 bool b_index;
187 bool b_seekable;
188 /* frameheader buffer */
189 uint8_t fh_buffer[NUV_FH_SIZE];
190 int64_t i_total_frames;
191 int64_t i_total_length;
192 /* first frame position (used for calculating size without seektable) */
193 int i_first_frame_offset;
194 };
195
196 static int HeaderLoad( demux_t *, header_t *h );
197 static int FrameHeaderLoad( demux_t *, frame_header_t *h );
198 static int ExtendedHeaderLoad( demux_t *, extended_header_t *h );
199 static int SeekTableLoad( demux_t *, demux_sys_t * );
200 static int ControlSetPosition( demux_t *p_demux, int64_t i_pos, bool b_guess );
201
202 /*****************************************************************************
203 * Open: initializes ES structures
204 *****************************************************************************/
205 static int Open( vlc_object_t * p_this )
206 {
207 demux_t *p_demux = (demux_t*)p_this;
208 demux_sys_t *p_sys;
209 const uint8_t *p_peek;
210 frame_header_t fh;
211
212 /* Check id */
213 if( stream_Peek( p_demux->s, &p_peek, 12 ) != 12 ||
214 ( strncmp( (char *)p_peek, "MythTVVideo", 11 ) &&
215 strncmp( (char *)p_peek, "NuppelVideo", 11 ) ) )
216 return VLC_EGENERIC;
217
218 p_sys = malloc( sizeof( demux_sys_t ) );
219 if( p_sys == NULL )
220 return VLC_ENOMEM;
221 memset( p_sys, 0, sizeof( demux_sys_t ) );
222 p_sys->p_es_video = NULL;
223 p_sys->p_es_audio = NULL;
224 p_sys->p_extra_f = NULL;
225 p_sys->i_pcr = -1;
226 p_sys->b_index = false;
227 p_sys->i_total_frames = -1;
228 p_sys->i_total_length = -1;
229 demux_IndexInit( &p_sys->idx );
230
231 p_demux->p_sys = p_sys;
232
233 /* Info about the stream */
234 stream_Control( p_demux->s, STREAM_CAN_SEEK, &p_sys->b_seekable );
235 #if 0
236 if( p_sys->b_seekable )
237 msg_Dbg( p_demux, "stream is seekable" );
238 else
239 msg_Dbg( p_demux, "stream is NOT seekable" );
240 #endif
241
242 if( HeaderLoad( p_demux, &p_sys->hdr ) )
243 goto error;
244
245 /* Load 'D' */
246 if( FrameHeaderLoad( p_demux, &fh ) || fh.i_type != 'D' )
247 goto error;
248 if( fh.i_length > 0 )
249 {
250 if( fh.i_compression == 'F' || fh.i_compression == 'R' )
251 {
252 /* ffmpeg extra data */
253 p_sys->i_extra_f = fh.i_length;
254 p_sys->p_extra_f = malloc( fh.i_length );
255 if( p_sys->p_extra_f == NULL || stream_Read( p_demux->s,
256 p_sys->p_extra_f, fh.i_length ) != fh.i_length )
257 goto error;
258 }
259 else
260 {
261 msg_Warn( p_demux, "unsupported 'D' frame (c=%c)", fh.i_compression );
262 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
263 goto error;
264 }
265 }
266
267 /* Check and load extented */
268 if( stream_Peek( p_demux->s, &p_peek, 1 ) != 1 )
269 goto error;
270 if( p_peek[0] == 'X' )
271 {
272 if( FrameHeaderLoad( p_demux, &fh ) )
273 goto error;
274 if( fh.i_length != 512 )
275 goto error;
276
277 if( ExtendedHeaderLoad( p_demux, &p_sys->exh ) )
278 goto error;
279
280 if( !p_sys->b_seekable )
281 msg_Warn( p_demux, "stream is not seekable, skipping seektable" );
282 else if( SeekTableLoad( p_demux, p_sys ) )
283 {
284 p_sys->b_index = false;
285 msg_Warn( p_demux, "Seektable is broken, seek won't be accurate" );
286 }
287 }
288 else
289 {
290 /* XXX: for now only file with extended chunk are supported
291 * why: because else we need to have support for rtjpeg+stupid nuv shit */
292 msg_Err( p_demux, "VLC doesn't support NUV without extended chunks (please upload samples)" );
293 goto error;
294 }
295
296 /* Create audio/video (will work only with extended header and audio=mp3 */
297 if( p_sys->hdr.i_video_blocks != 0 )
298 {
299 es_format_t fmt;
300
301 es_format_Init( &fmt, VIDEO_ES, p_sys->exh.i_video_fcc );
302 fmt.video.i_width = p_sys->hdr.i_width;
303 fmt.video.i_height = p_sys->hdr.i_height;
304 fmt.i_extra = p_sys->i_extra_f;
305 fmt.p_extra = p_sys->p_extra_f;
306 fmt.video.i_sar_num = p_sys->hdr.d_aspect * fmt.video.i_height;
307 fmt.video.i_sar_den = fmt.video.i_width;
308
309 p_sys->p_es_video = es_out_Add( p_demux->out, &fmt );
310 }
311 if( p_sys->hdr.i_audio_blocks != 0 )
312 {
313 es_format_t fmt;
314
315 es_format_Init( &fmt, AUDIO_ES, VLC_CODEC_MPGA );
316 fmt.audio.i_rate = p_sys->exh.i_audio_sample_rate;
317 fmt.audio.i_bitspersample = p_sys->exh.i_audio_bits_per_sample;
318
319 p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
320 }
321 if( p_sys->hdr.i_text_blocks != 0 )
322 {
323 msg_Warn( p_demux, "text not yet supported (upload samples)" );
324 }
325
326 p_sys->i_first_frame_offset = stream_Tell( p_demux->s );
327
328 /* Fill p_demux fields */
329 p_demux->pf_demux = Demux;
330 p_demux->pf_control = Control;
331
332 return VLC_SUCCESS;
333
334 error:
335 msg_Warn( p_demux, "cannot load Nuv file" );
336 p_demux->p_sys = NULL;
337 free( p_sys );
338 return VLC_EGENERIC;
339 }
340
341 /*****************************************************************************
342 * Close: frees unused data
343 *****************************************************************************/
344 static void Close( vlc_object_t * p_this )
345 {
346 demux_t *p_demux = (demux_t*)p_this;
347 demux_sys_t *p_sys = p_demux->p_sys;
348
349 free( p_sys->p_extra_f );
350 demux_IndexClean( &p_sys->idx );
351 free( p_sys );
352 }
353
354 /*****************************************************************************
355 * Demux: reads and demuxes data packets
356 *****************************************************************************
357 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
358 *****************************************************************************/
359 static int Demux( demux_t *p_demux )
360 {
361 demux_sys_t *p_sys = p_demux->p_sys;
362 frame_header_t fh;
363 block_t *p_data;
364
365 for( ;; )
366 {
367 if( !vlc_object_alive (p_demux) )
368 return -1;
369
370 if( FrameHeaderLoad( p_demux, &fh ) )
371 return 0;
372
373 if( fh.i_type == 'A' || fh.i_type == 'V' )
374 break;
375
376 /* TODO add support for some block type */
377
378 if( fh.i_type != 'R' && fh.i_length > 0 )
379 {
380 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
381 return -1;
382 }
383 }
384
385 /* */
386 if( ( p_data = stream_Block( p_demux->s, fh.i_length ) ) == NULL )
387 return 0;
388
389 p_data->i_dts = VLC_TS_0 + (int64_t)fh.i_timecode * 1000;
390 p_data->i_pts = (fh.i_type == 'V') ? VLC_TS_INVALID : p_data->i_dts;
391
392 /* only add keyframes to index */
393 if( !fh.i_keyframe && !p_sys->b_index )
394 demux_IndexAppend( &p_sys->idx,
395 p_data->i_dts - VLC_TS_0,
396 stream_Tell(p_demux->s) - NUV_FH_SIZE );
397
398 /* */
399 if( p_sys->i_pcr < 0 || p_sys->i_pcr < p_data->i_dts - VLC_TS_0 )
400 {
401 p_sys->i_pcr = p_data->i_dts - VLC_TS_0;
402 es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
403 }
404
405 if( fh.i_type == 'A' && p_sys->p_es_audio )
406 {
407 if( fh.i_compression == '3' )
408 es_out_Send( p_demux->out, p_sys->p_es_audio, p_data );
409 else
410 {
411 msg_Dbg( p_demux, "unsupported compression %c for audio (upload samples)", fh.i_compression );
412 block_Release( p_data );
413 }
414 }
415 else if( fh.i_type == 'V' && p_sys->p_es_video )
416 {
417 if( fh.i_compression >='0' && fh.i_compression <='3' )
418 {
419 /* for rtjpeg data, the header is also needed */
420 p_data = block_Realloc( p_data, NUV_FH_SIZE, fh.i_length );
421 memcpy( p_data->p_buffer, p_sys->fh_buffer, NUV_FH_SIZE );
422 }
423 /* 0,1,2,3 -> rtjpeg, >=4 mpeg4 */
424 if( fh.i_compression >= '0' )
425 es_out_Send( p_demux->out, p_sys->p_es_video, p_data );
426 else
427 {
428 msg_Dbg( p_demux, "unsupported compression %c for video (upload samples)", fh.i_compression );
429 block_Release( p_data );
430 }
431 }
432 else
433 {
434 block_Release( p_data );
435 }
436
437 return 1;
438 }
439
440 /*****************************************************************************
441 * Control:
442 *****************************************************************************/
443 static int Control( demux_t *p_demux, int i_query, va_list args )
444 {
445 demux_sys_t *p_sys = p_demux->p_sys;
446
447 double f, *pf;
448 int64_t i64, *pi64;
449
450 switch( i_query )
451 {
452
453 case DEMUX_GET_POSITION:
454 pf = (double*)va_arg( args, double * );
455
456 if( p_sys->i_total_length > 0 && p_sys->i_pcr >= 0 )
457 {
458 *pf = (double)p_sys->i_pcr / (double)p_sys->i_total_length;
459 }
460 else
461 {
462 i64 = stream_Size( p_demux->s );
463 if( i64 > 0 )
464 {
465 const double f_current = stream_Tell( p_demux->s );
466 *pf = f_current / (double)i64;
467 }
468 else
469 {
470 *pf = 0.0;
471 }
472 }
473 return VLC_SUCCESS;
474
475 case DEMUX_SET_POSITION:
476 {
477 int64_t i_pos;
478
479 f = (double)va_arg( args, double );
480
481 p_sys->i_pcr = -1;
482
483 /* first try to see if we can seek based on time (== GET_LENGTH works) */
484 if( p_sys->i_total_length > 0 && ( i_pos = demux_IndexConvertTime( &p_sys->idx, p_sys->i_total_length * f ) ) > 0 )
485 return ControlSetPosition( p_demux, i_pos, false );
486
487 /* if not search based on total stream size */
488 else if( ( i_pos = demux_IndexFindOffset( &p_sys->idx, stream_Size( p_demux->s ) * f ) ) >= 0 )
489 return ControlSetPosition( p_demux, i_pos, false );
490
491 else if( ( i_pos = p_sys->i_first_frame_offset + ( stream_Size( p_demux->s ) - p_sys->i_first_frame_offset ) * f ) >= 0 )
492 return ControlSetPosition( p_demux, i_pos, true );
493
494 else
495 return VLC_EGENERIC;
496 }
497
498 case DEMUX_GET_TIME:
499 pi64 = (int64_t*)va_arg( args, int64_t * );
500 *pi64 = p_sys->i_pcr >= 0 ? p_sys->i_pcr : 0;
501 return VLC_SUCCESS;
502
503 case DEMUX_SET_TIME:
504 {
505 int64_t i_pos;
506 i64 = (int64_t)va_arg( args, int64_t );
507
508 p_sys->i_pcr = -1;
509
510 i_pos = demux_IndexConvertTime( &p_sys->idx, i64 );
511 if( i_pos < 0 )
512 return VLC_EGENERIC;
513 else
514 return ControlSetPosition( p_demux, i_pos, false );
515 }
516
517 case DEMUX_GET_LENGTH:
518 pi64 = (int64_t*)va_arg( args, int64_t * );
519 if( p_sys->i_total_length >= 0 )
520 {
521 *pi64 = p_sys->i_total_length;
522 return VLC_SUCCESS;
523 }
524 else if( stream_Tell( p_demux->s ) > p_sys->i_first_frame_offset )
525 {
526 /* This should give an approximation of the total duration */
527 *pi64 = (double)( stream_Size( p_demux->s ) - p_sys->i_first_frame_offset ) /
528 (double)( stream_Tell( p_demux->s ) - p_sys->i_first_frame_offset )
529 * (double)( p_sys->i_pcr >= 0 ? p_sys->i_pcr : 0 );
530 return VLC_SUCCESS;
531 }
532 else
533 return VLC_EGENERIC;
534
535 case DEMUX_GET_FPS:
536 pf = (double*)va_arg( args, double * );
537 *pf = p_sys->hdr.d_fps;
538 return VLC_SUCCESS;
539
540 case DEMUX_GET_META:
541 default:
542 return VLC_EGENERIC;
543
544 }
545 }
546 static int ControlSetPosition( demux_t *p_demux, int64_t i_pos, bool b_guess )
547 {
548 demux_sys_t *p_sys = p_demux->p_sys;
549
550 if( i_pos < 0 )
551 return VLC_EGENERIC;
552
553 /* if we can seek in the stream */
554 if( p_sys->b_seekable && !b_guess )
555 {
556 if( stream_Seek( p_demux->s, i_pos ) )
557 return VLC_EGENERIC;
558 }
559 else
560 {
561 /* forward seek */
562 if( i_pos > stream_Tell( p_demux->s ) )
563 {
564 msg_Dbg( p_demux, "unable to seek, skipping frames (slow)" );
565 }
566 else
567 {
568 msg_Warn( p_demux, "unable to seek, only forward seeking is possible" );
569
570 return VLC_EGENERIC;
571 }
572 }
573
574 while( vlc_object_alive (p_demux) )
575 {
576 frame_header_t fh;
577 int64_t i_tell;
578
579 if( ( i_tell = stream_Tell( p_demux->s ) ) >= i_pos )
580 break;
581
582 if( FrameHeaderLoad( p_demux, &fh ) )
583 return VLC_EGENERIC;
584
585 if( fh.i_type == 'A' || fh.i_type == 'V' )
586 {
587 if( !fh.i_keyframe && !p_sys->b_index )
588 demux_IndexAppend( &p_sys->idx,(int64_t)fh.i_timecode*1000, i_tell );
589 }
590
591 if( fh.i_type != 'R' && fh.i_length > 0 )
592 {
593 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
594 return VLC_EGENERIC;
595 }
596 }
597
598 return VLC_SUCCESS;
599 }
600
601 /*****************************************************************************
602 *
603 *****************************************************************************/
604 static inline void GetDoubleLE( double *pd, void *src )
605 {
606 /* FIXME works only if sizeof(double) == 8 */
607 #ifdef WORDS_BIGENDIAN
608 uint8_t *p = (uint8_t*)pd, *q = (uint8_t*)src;
609 int i;
610 for( i = 0; i < 8; i++ )
611 p[i] = q[7-i];
612 #else
613 memcpy( pd, src, 8 );
614 #endif
615 }
616
617 /* HeaderLoad:
618 */
619 static int HeaderLoad( demux_t *p_demux, header_t *h )
620 {
621 uint8_t buffer[72];
622
623 if( stream_Read( p_demux->s, buffer, 72 ) != 72 )
624 return VLC_EGENERIC;
625
626 /* XXX: they are alignment to take care of (another broken format) */
627 memcpy( h->id, &buffer[ 0], 12 );
628 memcpy( h->version, &buffer[12], 5 );
629 h->i_width = GetDWLE( &buffer[20] );
630 h->i_height = GetDWLE( &buffer[24] );
631 h->i_width_desired = GetDWLE( &buffer[28] );
632 h->i_height_desired = GetDWLE( &buffer[32] );
633 h->i_mode = buffer[36];
634 GetDoubleLE( &h->d_aspect, &buffer[40] );
635 GetDoubleLE( &h->d_fps, &buffer[48] );
636 h->i_video_blocks = GetDWLE( &buffer[56] );
637 h->i_audio_blocks = GetDWLE( &buffer[60] );
638 h->i_text_blocks = GetDWLE( &buffer[64] );
639 h->i_keyframe_distance = GetDWLE( &buffer[68] );
640 #if 0
641 msg_Dbg( p_demux, "nuv: h=%s v=%s %dx%d a=%f fps=%f v=%d a=%d t=%d kfd=%d",
642 h->id, h->version, h->i_width, h->i_height, h->d_aspect,
643 h->d_fps, h->i_video_blocks, h->i_audio_blocks, h->i_text_blocks,
644 h->i_keyframe_distance );
645 #endif
646 return VLC_SUCCESS;
647 }
648
649 /* FrameHeaderLoad:
650 */
651 static int FrameHeaderLoad( demux_t *p_demux, frame_header_t *h )
652 {
653 uint8_t* buffer = p_demux->p_sys->fh_buffer;
654
655 if( stream_Read( p_demux->s, buffer, 12 ) != 12 )
656 return VLC_EGENERIC;
657
658 h->i_type = buffer[0];
659 h->i_compression = buffer[1];
660 h->i_keyframe = buffer[2];
661 h->i_filters = buffer[3];
662
663 h->i_timecode = GetDWLE( &buffer[4] );
664 h->i_length = GetDWLE( &buffer[8] );
665 #if 0
666 msg_Dbg( p_demux, "frame hdr: t=%c c=%c k=%d f=0x%x timecode=%d l=%d",
667 h->i_type,
668 h->i_compression ? h->i_compression : ' ',
669 h->i_keyframe ? h->i_keyframe : ' ',
670 h->i_filters,
671 h->i_timecode, h->i_length );
672 #endif
673 return VLC_SUCCESS;
674 }
675
676 static int ExtendedHeaderLoad( demux_t *p_demux, extended_header_t *h )
677 {
678 uint8_t buffer[512];
679
680 if( stream_Read( p_demux->s, buffer, 512 ) != 512 )
681 return VLC_EGENERIC;
682
683 h->i_version = GetDWLE( &buffer[0] );
684 h->i_video_fcc = VLC_FOURCC( buffer[4], buffer[5], buffer[6], buffer[7] );
685 h->i_audio_fcc = VLC_FOURCC( buffer[8], buffer[9], buffer[10], buffer[11] );
686 h->i_audio_sample_rate = GetDWLE( &buffer[12] );
687 h->i_audio_bits_per_sample = GetDWLE( &buffer[16] );
688 h->i_audio_channels = GetDWLE( &buffer[20] );
689 h->i_audio_compression_ratio = GetDWLE( &buffer[24] );
690 h->i_audio_quality = GetDWLE( &buffer[28] );
691 h->i_rtjpeg_quality = GetDWLE( &buffer[32] );
692 h->i_rtjpeg_luma_filter = GetDWLE( &buffer[36] );
693 h->i_rtjpeg_chroma_filter = GetDWLE( &buffer[40] );
694 h->i_lavc_bitrate = GetDWLE( &buffer[44] );
695 h->i_lavc_qmin = GetDWLE( &buffer[48] );
696 h->i_lavc_qmin = GetDWLE( &buffer[52] );
697 h->i_lavc_maxqdiff = GetDWLE( &buffer[56] );
698 h->i_seektable_offset = GetQWLE( &buffer[60] );
699 h->i_keyframe_adjust_offset= GetQWLE( &buffer[68] );
700 #if 0
701 msg_Dbg( p_demux, "ex hdr: v=%d vffc=%4.4s afcc=%4.4s %dHz %dbits ach=%d acr=%d aq=%d"
702 "rtjpeg q=%d lf=%d lc=%d lavc br=%d qmin=%d qmax=%d maxqdiff=%d seekableoff=%"PRIi64" keyfao=%"PRIi64,
703 h->i_version,
704 (char*)&h->i_video_fcc,
705 (char*)&h->i_audio_fcc, h->i_audio_sample_rate, h->i_audio_bits_per_sample, h->i_audio_channels,
706 h->i_audio_compression_ratio, h->i_audio_quality,
707 h->i_rtjpeg_quality, h->i_rtjpeg_luma_filter, h->i_rtjpeg_chroma_filter,
708 h->i_lavc_bitrate, h->i_lavc_qmin, h->i_lavc_qmax, h->i_lavc_maxqdiff,
709 h->i_seektable_offset, h->i_keyframe_adjust_offset );
710 #endif
711 return VLC_SUCCESS;
712 }
713
714 /*
715 typedef struct
716 {
717 int64_t i_file_offset;
718 int32_t i_keyframe_number;
719 } seektable_entry_t;
720 typedef struct
721 {
722 int32_t i_adjust;
723 int32_t i_keyframe_number;
724 } kfatable_entry_t;
725 */
726
727 static int SeekTableLoad( demux_t *p_demux, demux_sys_t *p_sys )
728 {
729 frame_header_t fh;
730 int64_t i_original_pos;
731 int64_t i_time, i_offset;
732 int keyframe, last_keyframe = 0, frame = 0, kfa_entry_id = 0;
733
734 if( p_sys->exh.i_seektable_offset <= 0 )
735 return VLC_SUCCESS;
736
737 /* Save current position */
738 i_original_pos = stream_Tell( p_demux->s );
739 #if 0
740 msg_Dbg( p_demux, "current offset %"PRIi64, i_original_pos );
741
742 msg_Dbg( p_demux, "seeking in stream to %"PRIi64, p_sys->exh.i_seektable_offset );
743 #endif
744 if( stream_Seek( p_demux->s, p_sys->exh.i_seektable_offset ) )
745 return VLC_EGENERIC;
746
747 if( FrameHeaderLoad( p_demux, &fh ) )
748 return VLC_EGENERIC;
749
750 if( fh.i_type != 'Q' )
751 {
752 msg_Warn( p_demux, "invalid seektable, frame type=%c", fh.i_type );
753 stream_Seek( p_demux->s, i_original_pos );
754 return VLC_EGENERIC;
755 }
756
757 /* */
758 uint8_t *p_seek_table = malloc( fh.i_length );
759 if( p_seek_table == NULL )
760 return VLC_ENOMEM;
761
762 if( stream_Read( p_demux->s, p_seek_table, fh.i_length ) != fh.i_length )
763 {
764 free( p_seek_table );
765 return VLC_EGENERIC;
766 }
767 const int32_t i_seek_elements = fh.i_length / 12;
768
769 /* Get keyframe adjust offsets */
770 int32_t i_kfa_elements;
771 uint8_t *p_kfa_table;
772
773 if( p_sys->exh.i_keyframe_adjust_offset > 0 )
774 {
775 msg_Dbg( p_demux, "seeking in stream to %"PRIi64, p_sys->exh.i_keyframe_adjust_offset );
776 if( stream_Seek( p_demux->s, p_sys->exh.i_keyframe_adjust_offset ) )
777 {
778 free( p_seek_table );
779 return VLC_EGENERIC;
780 }
781
782 if( FrameHeaderLoad( p_demux, &fh ) )
783 {
784 free( p_seek_table );
785 return VLC_EGENERIC;
786 }
787
788 if( fh.i_type == 'K' && fh.i_length >= 8 )
789 {
790 p_kfa_table = malloc( fh.i_length );
791
792 if( p_kfa_table == NULL )
793 {
794 free( p_seek_table );
795 return VLC_ENOMEM;
796 }
797
798 if( stream_Read( p_demux->s, p_kfa_table, fh.i_length ) != fh.i_length )
799 {
800 free( p_seek_table );
801 free( p_kfa_table );
802 return VLC_EGENERIC;
803 }
804
805 i_kfa_elements = fh.i_length / 8;
806 }
807 else
808 {
809 i_kfa_elements = 0;
810 }
811 }
812 else
813 {
814 i_kfa_elements = 0;
815 }
816
817
818 if( i_kfa_elements > 0 )
819 msg_Warn( p_demux, "untested keyframe adjust support, upload samples" );
820
821 for( int32_t j = 0; j < i_seek_elements; j++)
822 {
823 #if 0
824 uint8_t* p = p_seek_table + j * 12;
825 msg_Dbg( p_demux, "%x %x %x %x %x %x %x %x %x %x %x %x",
826 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9], p[10], p[11]);
827 #endif
828 keyframe = GetDWLE( p_seek_table + j * 12 + 8 );
829
830 frame += (keyframe - last_keyframe) * p_sys->hdr.i_keyframe_distance;
831
832 if( kfa_entry_id < i_kfa_elements && *(int32_t*)(p_kfa_table + kfa_entry_id * 12 + 4) == j )
833 {
834 frame -= *(int32_t*)(p_kfa_table + kfa_entry_id * 12);
835 msg_Dbg( p_demux, "corrected keyframe %d with current frame number %d (corrected with %d)",
836 keyframe, frame, *(int32_t*)(p_kfa_table + kfa_entry_id * 12) );
837 kfa_entry_id++;
838 }
839
840 i_time = (double)( (int64_t)frame * 1000000 ) / p_sys->hdr.d_fps;
841 i_offset = GetQWLE( p_seek_table + j * 12 );
842
843 if( i_offset == 0 && i_time != 0 )
844 msg_Dbg( p_demux, "invalid file offset %d %"PRIi64, keyframe, i_offset );
845 else
846 {
847 demux_IndexAppend( &p_sys->idx, i_time , i_offset );
848 #if 0
849 msg_Dbg( p_demux, "adding entry position %d %"PRIi64 " file offset %"PRIi64, keyframe, i_time, i_offset );
850 #endif
851 }
852
853 last_keyframe = keyframe;
854 }
855
856 p_sys->i_total_frames = (int64_t)frame;
857
858 p_sys->b_index = true;
859
860 p_sys->i_total_length = p_sys->i_total_frames * 1000000 / p_sys->hdr.d_fps;
861
862 msg_Dbg( p_demux, "index table loaded (%d elements)", i_seek_elements );
863
864 if( i_kfa_elements )
865 free ( p_kfa_table );
866
867 free ( p_seek_table );
868
869 /* Restore stream position */
870 if( stream_Seek( p_demux->s, i_original_pos ) )
871 return VLC_EGENERIC;
872
873 return VLC_SUCCESS;
874
875 }
876
877 /*****************************************************************************/
878 #define DEMUX_INDEX_SIZE_MAX (100000)
879 static void demux_IndexInit( demux_index_t *p_idx )
880 {
881 p_idx->i_idx = 0;
882 p_idx->i_idx_max = 0;
883 p_idx->idx = NULL;
884 }
885 static void demux_IndexClean( demux_index_t *p_idx )
886 {
887 free( p_idx->idx );
888 p_idx->idx = NULL;
889 }
890 static void demux_IndexAppend( demux_index_t *p_idx,
891 int64_t i_time, int64_t i_offset )
892 {
893 /* Be sure to append new entry (we don't insert point) */
894 if( p_idx->i_idx > 0 && p_idx->idx[p_idx->i_idx-1].i_time >= i_time )
895 return;
896
897 /* */
898 if( p_idx->i_idx >= p_idx->i_idx_max )
899 {
900 if( p_idx->i_idx >= DEMUX_INDEX_SIZE_MAX )
901 {
902 /* Avoid too big index */
903 const int64_t i_length = p_idx->idx[p_idx->i_idx-1].i_time -
904 p_idx->idx[0].i_time;
905 const int i_count = DEMUX_INDEX_SIZE_MAX/2;
906 int i, j;
907
908 /* We try to reduce the resolution of the index by a factor 2 */
909 for( i = 1, j = 1; i < p_idx->i_idx; i++ )
910 {
911 if( p_idx->idx[i].i_time < j * i_length / i_count )
912 continue;
913
914 p_idx->idx[j++] = p_idx->idx[i];
915 }
916 p_idx->i_idx = j;
917
918 if( p_idx->i_idx > 3 * DEMUX_INDEX_SIZE_MAX / 4 )
919 {
920 /* We haven't created enough space
921 * (This method won't create a good index but work for sure) */
922 for( i = 0; i < p_idx->i_idx/2; i++ )
923 p_idx->idx[i] = p_idx->idx[2*i];
924 p_idx->i_idx /= 2;
925 }
926 }
927 else
928 {
929 p_idx->i_idx_max += 1000;
930 p_idx->idx = xrealloc( p_idx->idx,
931 p_idx->i_idx_max*sizeof(demux_index_entry_t));
932 }
933 }
934
935 /* */
936 p_idx->idx[p_idx->i_idx].i_time = i_time;
937 p_idx->idx[p_idx->i_idx].i_offset = i_offset;
938
939 p_idx->i_idx++;
940 }
941 static int64_t demux_IndexConvertTime( demux_index_t *p_idx, int64_t i_time )
942 {
943 int i_min = 0;
944 int i_max = p_idx->i_idx-1;
945
946 /* Empty index */
947 if( p_idx->i_idx <= 0 )
948 return -1;
949
950 /* Special border case */
951 if( i_time <= p_idx->idx[0].i_time )
952 return p_idx->idx[0].i_offset;
953 if( i_time >= p_idx->idx[i_max].i_time )
954 return p_idx->idx[i_max].i_offset;
955
956 /* Dicho */
957 for( ;; )
958 {
959 int i_med;
960
961 if( i_max - i_min <= 1 )
962 break;
963
964 i_med = (i_min+i_max)/2;
965 if( p_idx->idx[i_med].i_time < i_time )
966 i_min = i_med;
967 else if( p_idx->idx[i_med].i_time > i_time )
968 i_max = i_med;
969 else
970 return p_idx->idx[i_med].i_offset;
971 }
972
973 /* return nearest in time */
974 if( i_time - p_idx->idx[i_min].i_time < p_idx->idx[i_max].i_time - i_time )
975 return p_idx->idx[i_min].i_offset;
976 else
977 return p_idx->idx[i_max].i_offset;
978 }
979
980
981 static int64_t demux_IndexFindOffset( demux_index_t *p_idx, int64_t i_offset )
982 {
983 int i_min = 0;
984 int i_max = p_idx->i_idx-1;
985
986 /* Empty index */
987 if( p_idx->i_idx <= 0 )
988 return -1;
989
990 /* Special border case */
991 if( i_offset <= p_idx->idx[0].i_offset )
992 return p_idx->idx[0].i_offset;
993 if( i_offset == p_idx->idx[i_max].i_offset )
994 return p_idx->idx[i_max].i_offset;
995 if( i_offset > p_idx->idx[i_max].i_offset )
996 return -1;
997
998 /* Dicho */
999 for( ;; )
1000 {
1001 int i_med;
1002
1003 if( i_max - i_min <= 1 )
1004 break;
1005
1006 i_med = (i_min+i_max)/2;
1007 if( p_idx->idx[i_med].i_offset < i_offset )
1008 i_min = i_med;
1009 else if( p_idx->idx[i_med].i_offset > i_offset )
1010 i_max = i_med;
1011 else
1012 return p_idx->idx[i_med].i_offset;
1013 }
1014
1015 /* return nearest */
1016 if( i_offset - p_idx->idx[i_min].i_offset < p_idx->idx[i_max].i_offset - i_offset )
1017 return p_idx->idx[i_min].i_offset;
1018 else
1019 return p_idx->idx[i_max].i_offset;
1020 }
1021
VLC Solaris and OpenSolaris fixes