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On the road to 1.1.0-RC
[vlc/solaris.git] / modules / demux / nuv.c
blob3fbcfa5cf381fb3439414f83233587a613895ad3
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 bool b_extended;
212
213 /* Check id */
214 if( stream_Peek( p_demux->s, &p_peek, 12 ) != 12 ||
215 ( strncmp( (char *)p_peek, "MythTVVideo", 11 ) &&
216 strncmp( (char *)p_peek, "NuppelVideo", 11 ) ) )
217 return VLC_EGENERIC;
218
219 p_sys = malloc( sizeof( demux_sys_t ) );
220 if( p_sys == NULL )
221 return VLC_ENOMEM;
222 memset( p_sys, 0, sizeof( demux_sys_t ) );
223 p_sys->p_es_video = NULL;
224 p_sys->p_es_audio = NULL;
225 p_sys->p_extra_f = NULL;
226 p_sys->i_pcr = -1;
227 p_sys->b_index = false;
228 p_sys->i_total_frames = -1;
229 p_sys->i_total_length = -1;
230 demux_IndexInit( &p_sys->idx );
231
232 p_demux->p_sys = p_sys;
233
234 /* Info about the stream */
235 stream_Control( p_demux->s, STREAM_CAN_SEEK, &p_sys->b_seekable );
236 #if 0
237 if( p_sys->b_seekable )
238 msg_Dbg( p_demux, "stream is seekable" );
239 else
240 msg_Dbg( p_demux, "stream is NOT seekable" );
241 #endif
242
243 if( HeaderLoad( p_demux, &p_sys->hdr ) )
244 goto error;
245
246 /* Load 'D' */
247 if( FrameHeaderLoad( p_demux, &fh ) || fh.i_type != 'D' )
248 goto error;
249 if( fh.i_length > 0 )
250 {
251 if( fh.i_compression == 'F' || fh.i_compression == 'R' )
252 {
253 /* ffmpeg extra data */
254 p_sys->i_extra_f = fh.i_length;
255 p_sys->p_extra_f = malloc( fh.i_length );
256 if( p_sys->p_extra_f == NULL || stream_Read( p_demux->s,
257 p_sys->p_extra_f, fh.i_length ) != fh.i_length )
258 goto error;
259 }
260 else
261 {
262 msg_Warn( p_demux, "unsupported 'D' frame (c=%c)", fh.i_compression );
263 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
264 goto error;
265 }
266 }
267
268 /* Check and load extented */
269 if( stream_Peek( p_demux->s, &p_peek, 1 ) != 1 )
270 goto error;
271 if( p_peek[0] == 'X' )
272 {
273 b_extended = true;
274
275 if( FrameHeaderLoad( p_demux, &fh ) )
276 goto error;
277 if( fh.i_length != 512 )
278 goto error;
279
280 if( ExtendedHeaderLoad( p_demux, &p_sys->exh ) )
281 goto error;
282
283 if( !p_sys->b_seekable )
284 msg_Warn( p_demux, "stream is not seekable, skipping seektable" );
285 else if( SeekTableLoad( p_demux, p_sys ) )
286 {
287 p_sys->b_index = false;
288 msg_Warn( p_demux, "Seektable is broken, seek won't be accurate" );
289 }
290 }
291 else
292 {
293 b_extended = false;
294
295 /* XXX: for now only file with extended chunk are supported
296 * why: because else we need to have support for rtjpeg+stupid nuv shit */
297 msg_Err( p_demux, "incomplete NUV support (upload samples)" );
298 goto error;
299 }
300
301 /* Create audio/video (will work only with extended header and audio=mp3 */
302 if( p_sys->hdr.i_video_blocks != 0 )
303 {
304 es_format_t fmt;
305
306 es_format_Init( &fmt, VIDEO_ES, p_sys->exh.i_video_fcc );
307 fmt.video.i_width = p_sys->hdr.i_width;
308 fmt.video.i_height = p_sys->hdr.i_height;
309 fmt.i_extra = p_sys->i_extra_f;
310 fmt.p_extra = p_sys->p_extra_f;
311 fmt.video.i_sar_num = p_sys->hdr.d_aspect * fmt.video.i_height;
312 fmt.video.i_sar_den = fmt.video.i_width;
313
314 p_sys->p_es_video = es_out_Add( p_demux->out, &fmt );
315 }
316 if( p_sys->hdr.i_audio_blocks != 0 )
317 {
318 es_format_t fmt;
319
320 es_format_Init( &fmt, AUDIO_ES, VLC_CODEC_MPGA );
321 fmt.audio.i_rate = p_sys->exh.i_audio_sample_rate;
322 fmt.audio.i_bitspersample = p_sys->exh.i_audio_bits_per_sample;
323
324 p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
325 }
326 if( p_sys->hdr.i_text_blocks != 0 )
327 {
328 msg_Warn( p_demux, "text not yet supported (upload samples)" );
329 }
330
331 p_sys->i_first_frame_offset = stream_Tell( p_demux->s );
332
333 /* Fill p_demux fields */
334 p_demux->pf_demux = Demux;
335 p_demux->pf_control = Control;
336
337 return VLC_SUCCESS;
338
339 error:
340 msg_Warn( p_demux, "cannot load Nuv file" );
341 p_demux->p_sys = NULL;
342 free( p_sys );
343 return VLC_EGENERIC;
344 }
345
346 /*****************************************************************************
347 * Close: frees unused data
348 *****************************************************************************/
349 static void Close( vlc_object_t * p_this )
350 {
351 demux_t *p_demux = (demux_t*)p_this;
352 demux_sys_t *p_sys = p_demux->p_sys;
353
354 free( p_sys->p_extra_f );
355 demux_IndexClean( &p_sys->idx );
356 free( p_sys );
357 }
358
359 /*****************************************************************************
360 * Demux: reads and demuxes data packets
361 *****************************************************************************
362 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
363 *****************************************************************************/
364 static int Demux( demux_t *p_demux )
365 {
366 demux_sys_t *p_sys = p_demux->p_sys;
367 frame_header_t fh;
368 block_t *p_data;
369
370 for( ;; )
371 {
372 if( !vlc_object_alive (p_demux) )
373 return -1;
374
375 if( FrameHeaderLoad( p_demux, &fh ) )
376 return 0;
377
378 if( fh.i_type == 'A' || fh.i_type == 'V' )
379 break;
380
381 /* TODO add support for some block type */
382
383 if( fh.i_type != 'R' && fh.i_length > 0 )
384 {
385 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
386 return -1;
387 }
388 }
389
390 /* */
391 if( ( p_data = stream_Block( p_demux->s, fh.i_length ) ) == NULL )
392 return 0;
393
394 p_data->i_dts = VLC_TS_0 + (int64_t)fh.i_timecode * 1000;
395 p_data->i_pts = (fh.i_type == 'V') ? VLC_TS_INVALID : p_data->i_dts;
396
397 /* only add keyframes to index */
398 if( !fh.i_keyframe && !p_sys->b_index )
399 demux_IndexAppend( &p_sys->idx,
400 p_data->i_dts - VLC_TS_0,
401 stream_Tell(p_demux->s) - NUV_FH_SIZE );
402
403 /* */
404 if( p_sys->i_pcr < 0 || p_sys->i_pcr < p_data->i_dts - VLC_TS_0 )
405 {
406 p_sys->i_pcr = p_data->i_dts - VLC_TS_0;
407 es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
408 }
409
410 if( fh.i_type == 'A' && p_sys->p_es_audio )
411 {
412 if( fh.i_compression == '3' )
413 es_out_Send( p_demux->out, p_sys->p_es_audio, p_data );
414 else
415 {
416 msg_Dbg( p_demux, "unsupported compression %c for audio (upload samples)", fh.i_compression );
417 block_Release( p_data );
418 }
419 }
420 else if( fh.i_type == 'V' && p_sys->p_es_video )
421 {
422 if( fh.i_compression >='0' && fh.i_compression <='3' )
423 {
424 /* for rtjpeg data, the header is also needed */
425 p_data = block_Realloc( p_data, NUV_FH_SIZE, fh.i_length );
426 memcpy( p_data->p_buffer, p_sys->fh_buffer, NUV_FH_SIZE );
427 }
428 /* 0,1,2,3 -> rtjpeg, >=4 mpeg4 */
429 if( fh.i_compression >= '0' )
430 es_out_Send( p_demux->out, p_sys->p_es_video, p_data );
431 else
432 {
433 msg_Dbg( p_demux, "unsupported compression %c for video (upload samples)", fh.i_compression );
434 block_Release( p_data );
435 }
436 }
437 else
438 {
439 block_Release( p_data );
440 }
441
442 return 1;
443 }
444
445 /*****************************************************************************
446 * Control:
447 *****************************************************************************/
448 static int Control( demux_t *p_demux, int i_query, va_list args )
449 {
450 demux_sys_t *p_sys = p_demux->p_sys;
451
452 double f, *pf;
453 int64_t i64, *pi64;
454
455 switch( i_query )
456 {
457
458 case DEMUX_GET_POSITION:
459 pf = (double*)va_arg( args, double * );
460
461 if( p_sys->i_total_length > 0 && p_sys->i_pcr >= 0 )
462 {
463 *pf = (double)p_sys->i_pcr / (double)p_sys->i_total_length;
464 }
465 else
466 {
467 i64 = stream_Size( p_demux->s );
468 if( i64 > 0 )
469 {
470 const double f_current = stream_Tell( p_demux->s );
471 *pf = f_current / (double)i64;
472 }
473 else
474 {
475 *pf = 0.0;
476 }
477 }
478 return VLC_SUCCESS;
479
480 case DEMUX_SET_POSITION:
481 {
482 int64_t i_pos;
483
484 f = (double)va_arg( args, double );
485
486 p_sys->i_pcr = -1;
487
488 /* first try to see if we can seek based on time (== GET_LENGTH works) */
489 if( p_sys->i_total_length > 0 && ( i_pos = demux_IndexConvertTime( &p_sys->idx, p_sys->i_total_length * f ) ) > 0 )
490 return ControlSetPosition( p_demux, i_pos, false );
491
492 /* if not search based on total stream size */
493 else if( ( i_pos = demux_IndexFindOffset( &p_sys->idx, stream_Size( p_demux->s ) * f ) ) >= 0 )
494 return ControlSetPosition( p_demux, i_pos, false );
495
496 else if( ( i_pos = p_sys->i_first_frame_offset + ( stream_Size( p_demux->s ) - p_sys->i_first_frame_offset ) * f ) >= 0 )
497 return ControlSetPosition( p_demux, i_pos, true );
498
499 else
500 return VLC_EGENERIC;
501 }
502
503 case DEMUX_GET_TIME:
504 pi64 = (int64_t*)va_arg( args, int64_t * );
505 *pi64 = p_sys->i_pcr >= 0 ? p_sys->i_pcr : 0;
506 return VLC_SUCCESS;
507
508 case DEMUX_SET_TIME:
509 {
510 int64_t i_pos;
511 i64 = (int64_t)va_arg( args, int64_t );
512
513 p_sys->i_pcr = -1;
514
515 i_pos = demux_IndexConvertTime( &p_sys->idx, i64 );
516 if( i_pos < 0 )
517 return VLC_EGENERIC;
518 else
519 return ControlSetPosition( p_demux, i_pos, false );
520 }
521
522 case DEMUX_GET_LENGTH:
523 pi64 = (int64_t*)va_arg( args, int64_t * );
524 if( p_sys->i_total_length >= 0 )
525 {
526 *pi64 = p_sys->i_total_length;
527 return VLC_SUCCESS;
528 }
529 else if( stream_Tell( p_demux->s ) > p_sys->i_first_frame_offset )
530 {
531 /* This should give an approximation of the total duration */
532 *pi64 = (double)( stream_Size( p_demux->s ) - p_sys->i_first_frame_offset ) /
533 (double)( stream_Tell( p_demux->s ) - p_sys->i_first_frame_offset )
534 * (double)( p_sys->i_pcr >= 0 ? p_sys->i_pcr : 0 );
535 return VLC_SUCCESS;
536 }
537 else
538 return VLC_EGENERIC;
539
540 case DEMUX_GET_FPS:
541 pf = (double*)va_arg( args, double * );
542 *pf = p_sys->hdr.d_fps;
543 return VLC_SUCCESS;
544
545 case DEMUX_GET_META:
546 default:
547 return VLC_EGENERIC;
548
549 }
550 }
551 static int ControlSetPosition( demux_t *p_demux, int64_t i_pos, bool b_guess )
552 {
553 demux_sys_t *p_sys = p_demux->p_sys;
554
555 if( i_pos < 0 )
556 return VLC_EGENERIC;
557
558 /* if we can seek in the stream */
559 if( p_sys->b_seekable && !b_guess )
560 {
561 if( stream_Seek( p_demux->s, i_pos ) )
562 return VLC_EGENERIC;
563 }
564 else
565 {
566 /* forward seek */
567 if( i_pos > stream_Tell( p_demux->s ) )
568 {
569 msg_Dbg( p_demux, "unable to seek, skipping frames (slow)" );
570 }
571 else
572 {
573 msg_Warn( p_demux, "unable to seek, only forward seeking is possible" );
574
575 return VLC_EGENERIC;
576 }
577 }
578
579 while( vlc_object_alive (p_demux) )
580 {
581 frame_header_t fh;
582 int64_t i_tell;
583
584 if( ( i_tell = stream_Tell( p_demux->s ) ) >= i_pos )
585 break;
586
587 if( FrameHeaderLoad( p_demux, &fh ) )
588 return VLC_EGENERIC;
589
590 if( fh.i_type == 'A' || fh.i_type == 'V' )
591 {
592 if( !fh.i_keyframe && !p_sys->b_index )
593 demux_IndexAppend( &p_sys->idx,(int64_t)fh.i_timecode*1000, i_tell );
594 }
595
596 if( fh.i_type != 'R' && fh.i_length > 0 )
597 {
598 if( stream_Read( p_demux->s, NULL, fh.i_length ) != fh.i_length )
599 return VLC_EGENERIC;
600 }
601 }
602
603 return VLC_SUCCESS;
604 }
605
606 /*****************************************************************************
607 *
608 *****************************************************************************/
609 static inline void GetDoubleLE( double *pd, void *src )
610 {
611 /* FIXME works only if sizeof(double) == 8 */
612 #ifdef WORDS_BIGENDIAN
613 uint8_t *p = (uint8_t*)pd, *q = (uint8_t*)src;
614 int i;
615 for( i = 0; i < 8; i++ )
616 p[i] = q[7-i];
617 #else
618 memcpy( pd, src, 8 );
619 #endif
620 }
621
622 /* HeaderLoad:
623 */
624 static int HeaderLoad( demux_t *p_demux, header_t *h )
625 {
626 uint8_t buffer[72];
627
628 if( stream_Read( p_demux->s, buffer, 72 ) != 72 )
629 return VLC_EGENERIC;
630
631 /* XXX: they are alignment to take care of (another broken format) */
632 memcpy( h->id, &buffer[ 0], 12 );
633 memcpy( h->version, &buffer[12], 5 );
634 h->i_width = GetDWLE( &buffer[20] );
635 h->i_height = GetDWLE( &buffer[24] );
636 h->i_width_desired = GetDWLE( &buffer[28] );
637 h->i_height_desired = GetDWLE( &buffer[32] );
638 h->i_mode = buffer[36];
639 GetDoubleLE( &h->d_aspect, &buffer[40] );
640 GetDoubleLE( &h->d_fps, &buffer[48] );
641 h->i_video_blocks = GetDWLE( &buffer[56] );
642 h->i_audio_blocks = GetDWLE( &buffer[60] );
643 h->i_text_blocks = GetDWLE( &buffer[64] );
644 h->i_keyframe_distance = GetDWLE( &buffer[68] );
645 #if 0
646 msg_Dbg( p_demux, "nuv: h=%s v=%s %dx%d a=%f fps=%f v=%d a=%d t=%d kfd=%d",
647 h->id, h->version, h->i_width, h->i_height, h->d_aspect,
648 h->d_fps, h->i_video_blocks, h->i_audio_blocks, h->i_text_blocks,
649 h->i_keyframe_distance );
650 #endif
651 return VLC_SUCCESS;
652 }
653
654 /* FrameHeaderLoad:
655 */
656 static int FrameHeaderLoad( demux_t *p_demux, frame_header_t *h )
657 {
658 uint8_t* buffer = p_demux->p_sys->fh_buffer;
659
660 if( stream_Read( p_demux->s, buffer, 12 ) != 12 )
661 return VLC_EGENERIC;
662
663 h->i_type = buffer[0];
664 h->i_compression = buffer[1];
665 h->i_keyframe = buffer[2];
666 h->i_filters = buffer[3];
667
668 h->i_timecode = GetDWLE( &buffer[4] );
669 h->i_length = GetDWLE( &buffer[8] );
670 #if 0
671 msg_Dbg( p_demux, "frame hdr: t=%c c=%c k=%d f=0x%x timecode=%d l=%d",
672 h->i_type,
673 h->i_compression ? h->i_compression : ' ',
674 h->i_keyframe ? h->i_keyframe : ' ',
675 h->i_filters,
676 h->i_timecode, h->i_length );
677 #endif
678 return VLC_SUCCESS;
679 }
680
681 static int ExtendedHeaderLoad( demux_t *p_demux, extended_header_t *h )
682 {
683 uint8_t buffer[512];
684
685 if( stream_Read( p_demux->s, buffer, 512 ) != 512 )
686 return VLC_EGENERIC;
687
688 h->i_version = GetDWLE( &buffer[0] );
689 h->i_video_fcc = VLC_FOURCC( buffer[4], buffer[5], buffer[6], buffer[7] );
690 h->i_audio_fcc = VLC_FOURCC( buffer[8], buffer[9], buffer[10], buffer[11] );
691 h->i_audio_sample_rate = GetDWLE( &buffer[12] );
692 h->i_audio_bits_per_sample = GetDWLE( &buffer[16] );
693 h->i_audio_channels = GetDWLE( &buffer[20] );
694 h->i_audio_compression_ratio = GetDWLE( &buffer[24] );
695 h->i_audio_quality = GetDWLE( &buffer[28] );
696 h->i_rtjpeg_quality = GetDWLE( &buffer[32] );
697 h->i_rtjpeg_luma_filter = GetDWLE( &buffer[36] );
698 h->i_rtjpeg_chroma_filter = GetDWLE( &buffer[40] );
699 h->i_lavc_bitrate = GetDWLE( &buffer[44] );
700 h->i_lavc_qmin = GetDWLE( &buffer[48] );
701 h->i_lavc_qmin = GetDWLE( &buffer[52] );
702 h->i_lavc_maxqdiff = GetDWLE( &buffer[56] );
703 h->i_seektable_offset = GetQWLE( &buffer[60] );
704 h->i_keyframe_adjust_offset= GetQWLE( &buffer[68] );
705 #if 0
706 msg_Dbg( p_demux, "ex hdr: v=%d vffc=%4.4s afcc=%4.4s %dHz %dbits ach=%d acr=%d aq=%d"
707 "rtjpeg q=%d lf=%d lc=%d lavc br=%d qmin=%d qmax=%d maxqdiff=%d seekableoff=%"PRIi64" keyfao=%"PRIi64,
708 h->i_version,
709 (char*)&h->i_video_fcc,
710 (char*)&h->i_audio_fcc, h->i_audio_sample_rate, h->i_audio_bits_per_sample, h->i_audio_channels,
711 h->i_audio_compression_ratio, h->i_audio_quality,
712 h->i_rtjpeg_quality, h->i_rtjpeg_luma_filter, h->i_rtjpeg_chroma_filter,
713 h->i_lavc_bitrate, h->i_lavc_qmin, h->i_lavc_qmax, h->i_lavc_maxqdiff,
714 h->i_seektable_offset, h->i_keyframe_adjust_offset );
715 #endif
716 return VLC_SUCCESS;
717 }
718
719 /*
720 typedef struct
721 {
722 int64_t i_file_offset;
723 int32_t i_keyframe_number;
724 } seektable_entry_t;
725 typedef struct
726 {
727 int32_t i_adjust;
728 int32_t i_keyframe_number;
729 } kfatable_entry_t;
730 */
731
732 static int SeekTableLoad( demux_t *p_demux, demux_sys_t *p_sys )
733 {
734 frame_header_t fh;
735 int64_t i_original_pos;
736 int64_t i_time, i_offset;
737 int keyframe, last_keyframe = 0, frame = 0, kfa_entry_id = 0;
738
739 if( p_sys->exh.i_seektable_offset <= 0 )
740 return VLC_SUCCESS;
741
742 /* Save current position */
743 i_original_pos = stream_Tell( p_demux->s );
744 #if 0
745 msg_Dbg( p_demux, "current offset %"PRIi64, i_original_pos );
746
747 msg_Dbg( p_demux, "seeking in stream to %"PRIi64, p_sys->exh.i_seektable_offset );
748 #endif
749 if( stream_Seek( p_demux->s, p_sys->exh.i_seektable_offset ) )
750 return VLC_EGENERIC;
751
752 if( FrameHeaderLoad( p_demux, &fh ) )
753 return VLC_EGENERIC;
754
755 if( fh.i_type != 'Q' )
756 {
757 msg_Warn( p_demux, "invalid seektable, frame type=%c", fh.i_type );
758 stream_Seek( p_demux->s, i_original_pos );
759 return VLC_EGENERIC;
760 }
761
762 /* */
763 uint8_t *p_seek_table = malloc( fh.i_length );
764 if( p_seek_table == NULL )
765 return VLC_ENOMEM;
766
767 if( stream_Read( p_demux->s, p_seek_table, fh.i_length ) != fh.i_length )
768 {
769 free( p_seek_table );
770 return VLC_EGENERIC;
771 }
772 const int32_t i_seek_elements = fh.i_length / 12;
773
774 /* Get keyframe adjust offsets */
775 int32_t i_kfa_elements;
776 uint8_t *p_kfa_table;
777
778 if( p_sys->exh.i_keyframe_adjust_offset > 0 )
779 {
780 msg_Dbg( p_demux, "seeking in stream to %"PRIi64, p_sys->exh.i_keyframe_adjust_offset );
781 if( stream_Seek( p_demux->s, p_sys->exh.i_keyframe_adjust_offset ) )
782 {
783 free( p_seek_table );
784 return VLC_EGENERIC;
785 }
786
787 if( FrameHeaderLoad( p_demux, &fh ) )
788 {
789 free( p_seek_table );
790 return VLC_EGENERIC;
791 }
792
793 if( fh.i_type == 'K' && fh.i_length >= 8 )
794 {
795 p_kfa_table = malloc( fh.i_length );
796
797 if( p_kfa_table == NULL )
798 {
799 free( p_seek_table );
800 return VLC_ENOMEM;
801 }
802
803 if( stream_Read( p_demux->s, p_kfa_table, fh.i_length ) != fh.i_length )
804 {
805 free( p_seek_table );
806 free( p_kfa_table );
807 return VLC_EGENERIC;
808 }
809
810 i_kfa_elements = fh.i_length / 8;
811 }
812 }
813 else
814 {
815 i_kfa_elements = 0;
816 }
817
818
819 if( i_kfa_elements > 0 )
820 msg_Warn( p_demux, "untested keyframe adjust support, upload samples" );
821
822 for( int32_t j = 0; j < i_seek_elements; j++)
823 {
824 #if 0
825 uint8_t* p = p_seek_table + j * 12;
826 msg_Dbg( p_demux, "%x %x %x %x %x %x %x %x %x %x %x %x",
827 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9], p[10], p[11]);
828 #endif
829 keyframe = GetDWLE( p_seek_table + j * 12 + 8 );
830
831 frame += (keyframe - last_keyframe) * p_sys->hdr.i_keyframe_distance;
832
833 if( kfa_entry_id < i_kfa_elements && *(int32_t*)(p_kfa_table + kfa_entry_id * 12 + 4) == j )
834 {
835 frame -= *(int32_t*)(p_kfa_table + kfa_entry_id * 12);
836 msg_Dbg( p_demux, "corrected keyframe %d with current frame number %d (corrected with %d)",
837 keyframe, frame, *(int32_t*)(p_kfa_table + kfa_entry_id * 12) );
838 kfa_entry_id++;
839 }
840
841 i_time = (double)( (int64_t)frame * 1000000 ) / p_sys->hdr.d_fps;
842 i_offset = GetQWLE( p_seek_table + j * 12 );
843
844 if( i_offset == 0 && i_time != 0 )
845 msg_Dbg( p_demux, "invalid file offset %d %"PRIi64, keyframe, i_offset );
846 else
847 {
848 demux_IndexAppend( &p_sys->idx, i_time , i_offset );
849 #if 0
850 msg_Dbg( p_demux, "adding entry position %d %"PRIi64 " file offset %"PRIi64, keyframe, i_time, i_offset );
851 #endif
852 }
853
854 last_keyframe = keyframe;
855 }
856
857 p_sys->i_total_frames = (int64_t)frame;
858
859 p_sys->b_index = true;
860
861 p_sys->i_total_length = p_sys->i_total_frames * 1000000 / p_sys->hdr.d_fps;
862
863 msg_Dbg( p_demux, "index table loaded (%d elements)", i_seek_elements );
864
865 if( i_kfa_elements )
866 free ( p_kfa_table );
867
868 free ( p_seek_table );
869
870 /* Restore stream position */
871 if( stream_Seek( p_demux->s, i_original_pos ) )
872 return VLC_EGENERIC;
873
874 return VLC_SUCCESS;
875
876 }
877
878 /*****************************************************************************/
879 #define DEMUX_INDEX_SIZE_MAX (100000)
880 static void demux_IndexInit( demux_index_t *p_idx )
881 {
882 p_idx->i_idx = 0;
883 p_idx->i_idx_max = 0;
884 p_idx->idx = NULL;
885 }
886 static void demux_IndexClean( demux_index_t *p_idx )
887 {
888 free( p_idx->idx );
889 p_idx->idx = NULL;
890 }
891 static void demux_IndexAppend( demux_index_t *p_idx,
892 int64_t i_time, int64_t i_offset )
893 {
894 /* Be sure to append new entry (we don't insert point) */
895 if( p_idx->i_idx > 0 && p_idx->idx[p_idx->i_idx-1].i_time >= i_time )
896 return;
897
898 /* */
899 if( p_idx->i_idx >= p_idx->i_idx_max )
900 {
901 if( p_idx->i_idx >= DEMUX_INDEX_SIZE_MAX )
902 {
903 /* Avoid too big index */
904 const int64_t i_length = p_idx->idx[p_idx->i_idx-1].i_time -
905 p_idx->idx[0].i_time;
906 const int i_count = DEMUX_INDEX_SIZE_MAX/2;
907 int i, j;
908
909 /* We try to reduce the resolution of the index by a factor 2 */
910 for( i = 1, j = 1; i < p_idx->i_idx; i++ )
911 {
912 if( p_idx->idx[i].i_time < j * i_length / i_count )
913 continue;
914
915 p_idx->idx[j++] = p_idx->idx[i];
916 }
917 p_idx->i_idx = j;
918
919 if( p_idx->i_idx > 3 * DEMUX_INDEX_SIZE_MAX / 4 )
920 {
921 /* We haven't created enough space
922 * (This method won't create a good index but work for sure) */
923 for( i = 0; i < p_idx->i_idx/2; i++ )
924 p_idx->idx[i] = p_idx->idx[2*i];
925 p_idx->i_idx /= 2;
926 }
927 }
928 else
929 {
930 p_idx->i_idx_max += 1000;
931 p_idx->idx = xrealloc( p_idx->idx,
932 p_idx->i_idx_max*sizeof(demux_index_entry_t));
933 }
934 }
935
936 /* */
937 p_idx->idx[p_idx->i_idx].i_time = i_time;
938 p_idx->idx[p_idx->i_idx].i_offset = i_offset;
939
940 p_idx->i_idx++;
941 }
942 static int64_t demux_IndexConvertTime( demux_index_t *p_idx, int64_t i_time )
943 {
944 int i_min = 0;
945 int i_max = p_idx->i_idx-1;
946
947 /* Empty index */
948 if( p_idx->i_idx <= 0 )
949 return -1;
950
951 /* Special border case */
952 if( i_time <= p_idx->idx[0].i_time )
953 return p_idx->idx[0].i_offset;
954 if( i_time >= p_idx->idx[i_max].i_time )
955 return p_idx->idx[i_max].i_offset;
956
957 /* Dicho */
958 for( ;; )
959 {
960 int i_med;
961
962 if( i_max - i_min <= 1 )
963 break;
964
965 i_med = (i_min+i_max)/2;
966 if( p_idx->idx[i_med].i_time < i_time )
967 i_min = i_med;
968 else if( p_idx->idx[i_med].i_time > i_time )
969 i_max = i_med;
970 else
971 return p_idx->idx[i_med].i_offset;
972 }
973
974 /* return nearest in time */
975 if( i_time - p_idx->idx[i_min].i_time < p_idx->idx[i_max].i_time - i_time )
976 return p_idx->idx[i_min].i_offset;
977 else
978 return p_idx->idx[i_max].i_offset;
979 }
980
981
982 static int64_t demux_IndexFindOffset( demux_index_t *p_idx, int64_t i_offset )
983 {
984 int i_min = 0;
985 int i_max = p_idx->i_idx-1;
986
987 /* Empty index */
988 if( p_idx->i_idx <= 0 )
989 return -1;
990
991 /* Special border case */
992 if( i_offset <= p_idx->idx[0].i_offset )
993 return p_idx->idx[0].i_offset;
994 if( i_offset == p_idx->idx[i_max].i_offset )
995 return p_idx->idx[i_max].i_offset;
996 if( i_offset > p_idx->idx[i_max].i_offset )
997 return -1;
998
999 /* Dicho */
1000 for( ;; )
1001 {
1002 int i_med;
1003
1004 if( i_max - i_min <= 1 )
1005 break;
1006
1007 i_med = (i_min+i_max)/2;
1008 if( p_idx->idx[i_med].i_offset < i_offset )
1009 i_min = i_med;
1010 else if( p_idx->idx[i_med].i_offset > i_offset )
1011 i_max = i_med;
1012 else
1013 return p_idx->idx[i_med].i_offset;
1014 }
1015
1016 /* return nearest */
1017 if( i_offset - p_idx->idx[i_min].i_offset < p_idx->idx[i_max].i_offset - i_offset )
1018 return p_idx->idx[i_min].i_offset;
1019 else
1020 return p_idx->idx[i_max].i_offset;
1021 }
1022
VLC Solaris and OpenSolaris fixes