1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001 VLC authors and VideoLAN
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation; either version 2.1 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
28 #include <vlc_common.h>
29 #include <vlc_demux.h> /* stream_*, *_ES */
30 #include <vlc_codecs.h> /* VLC_BITMAPINFOHEADER */
38 #define __EVEN( x ) (((x) + 1) & ~1)
40 static vlc_fourcc_t GetFOURCC( const uint8_t *p_buff )
42 return VLC_FOURCC( p_buff[0], p_buff[1], p_buff[2], p_buff[3] );
45 /****************************************************************************
47 * Basics functions to manipulates chunks
49 ****************************************************************************/
50 static int AVI_ChunkReadCommon( stream_t *s, avi_chunk_t *p_chk )
52 const uint8_t *p_peek;
54 memset( p_chk, 0, sizeof( avi_chunk_t ) );
56 if( stream_Peek( s, &p_peek, 8 ) < 8 )
59 p_chk->common.i_chunk_fourcc = GetFOURCC( p_peek );
60 p_chk->common.i_chunk_size = GetDWLE( p_peek + 4 );
61 p_chk->common.i_chunk_pos = stream_Tell( s );
63 p_chk->common.p_father = NULL;
64 p_chk->common.p_next = NULL;
65 p_chk->common.p_first = NULL;
66 p_chk->common.p_next = NULL;
69 msg_Dbg( (vlc_object_t*)s,
70 "found chunk, fourcc: %4.4s size:%"PRId64" pos:%"PRId64,
71 (char*)&p_chk->common.i_chunk_fourcc,
72 p_chk->common.i_chunk_size,
73 p_chk->common.i_chunk_pos );
78 static int AVI_NextChunk( stream_t *s, avi_chunk_t *p_chk )
84 if( AVI_ChunkReadCommon( s, &chk ) )
91 if( p_chk->common.p_father )
93 if( p_chk->common.p_father->common.i_chunk_pos +
94 __EVEN( p_chk->common.p_father->common.i_chunk_size ) + 8 <
95 p_chk->common.i_chunk_pos +
96 __EVEN( p_chk->common.i_chunk_size ) + 8 )
101 return stream_Seek( s, p_chk->common.i_chunk_pos +
102 __EVEN( p_chk->common.i_chunk_size ) + 8 );
105 /****************************************************************************
107 * Functions to read chunks
109 ****************************************************************************/
110 static int AVI_ChunkRead_list( stream_t *s, avi_chunk_t *p_container )
113 const uint8_t *p_peek;
115 int i_ret = VLC_SUCCESS;
117 if( p_container->common.i_chunk_size > 0 && p_container->common.i_chunk_size < 4 )
120 msg_Warn( (vlc_object_t*)s, "empty list chunk" );
123 if( stream_Peek( s, &p_peek, 12 ) < 12 )
125 msg_Warn( (vlc_object_t*)s, "cannot peek while reading list chunk" );
129 stream_Control( s, STREAM_CAN_FASTSEEK, &b_seekable );
131 p_container->list.i_type = GetFOURCC( p_peek + 8 );
133 /* XXX fixed for on2 hack */
134 if( p_container->common.i_chunk_fourcc == AVIFOURCC_ON2 && p_container->list.i_type == AVIFOURCC_ON2f )
136 p_container->common.i_chunk_fourcc = AVIFOURCC_RIFF;
137 p_container->list.i_type = AVIFOURCC_AVI;
140 if( p_container->common.i_chunk_fourcc == AVIFOURCC_LIST &&
141 p_container->list.i_type == AVIFOURCC_movi )
143 msg_Dbg( (vlc_object_t*)s, "skipping movi chunk" );
145 return AVI_NextChunk( s, p_container );
147 return VLC_EGENERIC; /* point at begining of LIST-movi */
150 if( stream_Read( s, NULL, 12 ) != 12 )
152 msg_Warn( (vlc_object_t*)s, "cannot enter chunk" );
157 msg_Dbg( (vlc_object_t*)s,
158 "found LIST chunk: \'%4.4s\'",
159 (char*)&p_container->list.i_type );
161 msg_Dbg( (vlc_object_t*)s, "<list \'%4.4s\'>", (char*)&p_container->list.i_type );
164 p_chk = xmalloc( sizeof( avi_chunk_t ) );
165 memset( p_chk, 0, sizeof( avi_chunk_t ) );
166 if( !p_container->common.p_first )
168 p_container->common.p_first = p_chk;
172 p_container->common.p_last->common.p_next = p_chk;
174 p_container->common.p_last = p_chk;
176 i_ret = AVI_ChunkRead( s, p_chk, p_container );
181 if( p_chk->common.p_father->common.i_chunk_size > 0 &&
183 (off_t)p_chk->common.p_father->common.i_chunk_pos +
184 (off_t)__EVEN( p_chk->common.p_father->common.i_chunk_size ) ) )
189 /* If we can't seek then stop when we 've found LIST-movi */
190 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_LIST &&
191 p_chk->list.i_type == AVIFOURCC_movi &&
192 ( !b_seekable || p_chk->common.i_chunk_size == 0 ) )
198 msg_Dbg( (vlc_object_t*)s, "</list \'%4.4s\'>", (char*)&p_container->list.i_type );
200 if ( i_ret == AVI_ZERO_FOURCC ) return i_ret;
204 /* Allow to append indexes after starting playback */
205 int AVI_ChunkFetchIndexes( stream_t *s, avi_chunk_t *p_riff )
207 avi_chunk_t *p_movi = AVI_ChunkFind( p_riff, AVIFOURCC_movi, 0 );
212 uint64_t i_indexpos = 8 + p_movi->common.i_chunk_pos + p_movi->common.i_chunk_size;
213 bool b_seekable = false;
214 int i_ret = VLC_SUCCESS;
216 stream_Control( s, STREAM_CAN_SEEK, &b_seekable );
217 if ( !b_seekable || stream_Seek( s, i_indexpos ) )
222 p_chk = xmalloc( sizeof( avi_chunk_t ) );
223 memset( p_chk, 0, sizeof( avi_chunk_t ) );
224 if (unlikely( !p_riff->common.p_first ))
225 p_riff->common.p_first = p_chk;
227 p_riff->common.p_last->common.p_next = p_chk;
228 p_riff->common.p_last = p_chk;
230 i_ret = AVI_ChunkRead( s, p_chk, p_riff );
234 if( p_chk->common.p_father->common.i_chunk_size > 0 &&
236 (off_t)p_chk->common.p_father->common.i_chunk_pos +
237 (off_t)__EVEN( p_chk->common.p_father->common.i_chunk_size ) ) )
242 /* If we can't seek then stop when we 've found any index */
243 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_indx ||
244 p_chk->common.i_chunk_fourcc == AVIFOURCC_idx1 )
254 #define AVI_READCHUNK_ENTER \
255 int64_t i_read = __EVEN(p_chk->common.i_chunk_size ) + 8; \
256 if( i_read > 100000000 ) \
258 msg_Err( s, "Big chunk ignored" ); \
259 return VLC_EGENERIC; \
261 uint8_t *p_read, *p_buff; \
262 if( !( p_read = p_buff = malloc(i_read ) ) ) \
264 return VLC_EGENERIC; \
266 i_read = stream_Read( s, p_read, i_read ); \
267 if( i_read < (int64_t)__EVEN(p_chk->common.i_chunk_size ) + 8 ) \
270 return VLC_EGENERIC; \
275 #define AVI_READ( res, func, size ) \
276 if( i_read < size ) { \
278 return VLC_EGENERIC; \
281 res = func( p_read ); \
284 #define AVI_READCHUNK_EXIT( code ) \
288 static inline uint8_t GetB( uint8_t *ptr )
293 #define AVI_READ1BYTE( i_byte ) \
294 AVI_READ( i_byte, GetB, 1 )
296 #define AVI_READ2BYTES( i_word ) \
297 AVI_READ( i_word, GetWLE, 2 )
299 #define AVI_READ4BYTES( i_dword ) \
300 AVI_READ( i_dword, GetDWLE, 4 )
302 #define AVI_READ8BYTES( i_qword ) \
303 AVI_READ( i_qword, GetQWLE, 8 )
305 #define AVI_READFOURCC( i_dword ) \
306 AVI_READ( i_dword, GetFOURCC, 4 )
308 static int AVI_ChunkRead_avih( stream_t *s, avi_chunk_t *p_chk )
312 p_chk->common.i_chunk_fourcc = AVIFOURCC_avih;
313 AVI_READ4BYTES( p_chk->avih.i_microsecperframe);
314 AVI_READ4BYTES( p_chk->avih.i_maxbytespersec );
315 AVI_READ4BYTES( p_chk->avih.i_reserved1 );
316 AVI_READ4BYTES( p_chk->avih.i_flags );
317 AVI_READ4BYTES( p_chk->avih.i_totalframes );
318 AVI_READ4BYTES( p_chk->avih.i_initialframes );
319 AVI_READ4BYTES( p_chk->avih.i_streams );
320 AVI_READ4BYTES( p_chk->avih.i_suggestedbuffersize );
321 AVI_READ4BYTES( p_chk->avih.i_width );
322 AVI_READ4BYTES( p_chk->avih.i_height );
323 AVI_READ4BYTES( p_chk->avih.i_scale );
324 AVI_READ4BYTES( p_chk->avih.i_rate );
325 AVI_READ4BYTES( p_chk->avih.i_start );
326 AVI_READ4BYTES( p_chk->avih.i_length );
328 msg_Dbg( (vlc_object_t*)s,
329 "avih: streams:%d flags:%s%s%s%s %dx%d",
330 p_chk->avih.i_streams,
331 p_chk->avih.i_flags&AVIF_HASINDEX?" HAS_INDEX":"",
332 p_chk->avih.i_flags&AVIF_MUSTUSEINDEX?" MUST_USE_INDEX":"",
333 p_chk->avih.i_flags&AVIF_ISINTERLEAVED?" IS_INTERLEAVED":"",
334 p_chk->avih.i_flags&AVIF_TRUSTCKTYPE?" TRUST_CKTYPE":"",
335 p_chk->avih.i_width, p_chk->avih.i_height );
337 AVI_READCHUNK_EXIT( VLC_SUCCESS );
340 static int AVI_ChunkRead_strh( stream_t *s, avi_chunk_t *p_chk )
344 AVI_READFOURCC( p_chk->strh.i_type );
345 AVI_READFOURCC( p_chk->strh.i_handler );
346 AVI_READ4BYTES( p_chk->strh.i_flags );
347 AVI_READ4BYTES( p_chk->strh.i_reserved1 );
348 AVI_READ4BYTES( p_chk->strh.i_initialframes );
349 AVI_READ4BYTES( p_chk->strh.i_scale );
350 AVI_READ4BYTES( p_chk->strh.i_rate );
351 AVI_READ4BYTES( p_chk->strh.i_start );
352 AVI_READ4BYTES( p_chk->strh.i_length );
353 AVI_READ4BYTES( p_chk->strh.i_suggestedbuffersize );
354 AVI_READ4BYTES( p_chk->strh.i_quality );
355 AVI_READ4BYTES( p_chk->strh.i_samplesize );
357 msg_Dbg( (vlc_object_t*)s,
358 "strh: type:%4.4s handler:0x%8.8x samplesize:%d %.2ffps",
359 (char*)&p_chk->strh.i_type,
360 p_chk->strh.i_handler,
361 p_chk->strh.i_samplesize,
362 ( p_chk->strh.i_scale ?
363 (float)p_chk->strh.i_rate / (float)p_chk->strh.i_scale : -1) );
366 AVI_READCHUNK_EXIT( VLC_SUCCESS );
369 static int AVI_ChunkRead_strf( stream_t *s, avi_chunk_t *p_chk )
374 if( p_chk->common.p_father == NULL )
376 msg_Err( (vlc_object_t*)s, "malformed avi file" );
377 AVI_READCHUNK_EXIT( VLC_EGENERIC );
379 if( !( p_strh = AVI_ChunkFind( p_chk->common.p_father, AVIFOURCC_strh, 0 ) ) )
381 msg_Err( (vlc_object_t*)s, "malformed avi file" );
382 AVI_READCHUNK_EXIT( VLC_EGENERIC );
385 switch( p_strh->strh.i_type )
387 case( AVIFOURCC_auds ):
388 p_chk->strf.auds.i_cat = AUDIO_ES;
389 p_chk->strf.auds.p_wf = xmalloc( __MAX( p_chk->common.i_chunk_size, sizeof( WAVEFORMATEX ) ) );
390 if ( !p_chk->strf.auds.p_wf )
392 AVI_READCHUNK_EXIT( VLC_ENOMEM );
394 AVI_READ2BYTES( p_chk->strf.auds.p_wf->wFormatTag );
395 AVI_READ2BYTES( p_chk->strf.auds.p_wf->nChannels );
396 AVI_READ4BYTES( p_chk->strf.auds.p_wf->nSamplesPerSec );
397 AVI_READ4BYTES( p_chk->strf.auds.p_wf->nAvgBytesPerSec );
398 AVI_READ2BYTES( p_chk->strf.auds.p_wf->nBlockAlign );
399 AVI_READ2BYTES( p_chk->strf.auds.p_wf->wBitsPerSample );
401 if( p_chk->strf.auds.p_wf->wFormatTag != WAVE_FORMAT_PCM
402 && p_chk->common.i_chunk_size > sizeof( WAVEFORMATEX ) )
404 AVI_READ2BYTES( p_chk->strf.auds.p_wf->cbSize );
406 /* prevent segfault */
407 if( p_chk->strf.auds.p_wf->cbSize >
408 p_chk->common.i_chunk_size - sizeof( WAVEFORMATEX ) )
410 p_chk->strf.auds.p_wf->cbSize =
411 p_chk->common.i_chunk_size - sizeof( WAVEFORMATEX );
414 if( p_chk->strf.auds.p_wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE )
416 msg_Dbg( s, "Extended header found" );
421 p_chk->strf.auds.p_wf->cbSize = 0;
423 if( p_chk->strf.auds.p_wf->cbSize > 0 )
425 memcpy( &p_chk->strf.auds.p_wf[1] ,
426 p_buff + 8 + sizeof( WAVEFORMATEX ), /* 8=fourcc+size */
427 p_chk->strf.auds.p_wf->cbSize );
430 msg_Dbg( (vlc_object_t*)s,
431 "strf: audio:0x%4.4x channels:%d %dHz %dbits/sample %dkb/s",
432 p_chk->strf.auds.p_wf->wFormatTag,
433 p_chk->strf.auds.p_wf->nChannels,
434 p_chk->strf.auds.p_wf->nSamplesPerSec,
435 p_chk->strf.auds.p_wf->wBitsPerSample,
436 p_chk->strf.auds.p_wf->nAvgBytesPerSec * 8 / 1024 );
439 case( AVIFOURCC_vids ):
440 p_strh->strh.i_samplesize = 0; /* XXX for ffmpeg avi file */
441 p_chk->strf.vids.i_cat = VIDEO_ES;
442 p_chk->strf.vids.p_bih = xmalloc( __MAX( p_chk->common.i_chunk_size,
443 sizeof( *p_chk->strf.vids.p_bih ) ) );
444 if ( !p_chk->strf.vids.p_bih )
446 AVI_READCHUNK_EXIT( VLC_ENOMEM );
448 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biSize );
449 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biWidth );
450 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biHeight );
451 AVI_READ2BYTES( p_chk->strf.vids.p_bih->biPlanes );
452 AVI_READ2BYTES( p_chk->strf.vids.p_bih->biBitCount );
453 AVI_READFOURCC( p_chk->strf.vids.p_bih->biCompression );
454 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biSizeImage );
455 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biXPelsPerMeter );
456 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biYPelsPerMeter );
457 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biClrUsed );
458 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biClrImportant );
459 if( p_chk->strf.vids.p_bih->biSize > p_chk->common.i_chunk_size )
461 p_chk->strf.vids.p_bih->biSize = p_chk->common.i_chunk_size;
463 uint64_t i_extrasize = p_chk->common.i_chunk_size - sizeof(VLC_BITMAPINFOHEADER);
464 if( i_extrasize > 0 )
466 /* There's a color palette appended, set up VLC_BITMAPINFO */
467 memcpy( &p_chk->strf.vids.p_bih[1],
468 p_buff + 8 + sizeof(VLC_BITMAPINFOHEADER), /* 8=fourrc+size */
471 if ( !p_chk->strf.vids.p_bih->biClrUsed )
472 p_chk->strf.vids.p_bih->biClrUsed = (1 << p_chk->strf.vids.p_bih->biBitCount);
474 if( i_extrasize > (UINT32_MAX * sizeof(uint32_t)) )
475 p_chk->strf.vids.p_bih->biClrUsed = UINT32_MAX;
478 p_chk->strf.vids.p_bih->biClrUsed =
479 __MAX( i_extrasize / sizeof(uint32_t),
480 p_chk->strf.vids.p_bih->biClrUsed );
483 /* stay within VLC's limits */
484 p_chk->strf.vids.p_bih->biClrUsed =
485 __MIN( VIDEO_PALETTE_COLORS_MAX, p_chk->strf.vids.p_bih->biClrUsed );
487 else p_chk->strf.vids.p_bih->biClrUsed = 0;
489 msg_Dbg( (vlc_object_t*)s,
490 "strf: video:%4.4s %"PRIu32"x%"PRIu32" planes:%d %dbpp",
491 (char*)&p_chk->strf.vids.p_bih->biCompression,
492 (uint32_t)p_chk->strf.vids.p_bih->biWidth,
493 (uint32_t)p_chk->strf.vids.p_bih->biHeight,
494 p_chk->strf.vids.p_bih->biPlanes,
495 p_chk->strf.vids.p_bih->biBitCount );
500 p_chk->strf.common.i_cat = UNKNOWN_ES;
502 case( AVIFOURCC_txts ):
503 p_chk->strf.common.i_cat = SPU_ES;
506 msg_Warn( (vlc_object_t*)s, "unknown stream type: %4.4s",
507 (char*)&p_strh->strh.i_type );
508 p_chk->strf.common.i_cat = UNKNOWN_ES;
511 AVI_READCHUNK_EXIT( VLC_SUCCESS );
513 static void AVI_ChunkFree_strf( avi_chunk_t *p_chk )
515 avi_chunk_strf_t *p_strf = (avi_chunk_strf_t*)p_chk;
516 if( p_strf->common.i_cat == AUDIO_ES )
518 FREENULL( p_strf->auds.p_wf );
520 else if( p_strf->common.i_cat == VIDEO_ES )
522 FREENULL( p_strf->vids.p_bih );
526 static int AVI_ChunkRead_strd( stream_t *s, avi_chunk_t *p_chk )
528 if ( p_chk->common.i_chunk_size == 0 )
530 msg_Dbg( (vlc_object_t*)s, "Zero sized pre-JUNK section met" );
531 return AVI_STRD_ZERO_CHUNK;
535 p_chk->strd.p_data = xmalloc( p_chk->common.i_chunk_size );
536 memcpy( p_chk->strd.p_data, p_buff + 8, p_chk->common.i_chunk_size );
537 AVI_READCHUNK_EXIT( VLC_SUCCESS );
540 static void AVI_ChunkFree_strd( avi_chunk_t *p_chk )
542 free( p_chk->strd.p_data );
545 static int AVI_ChunkRead_idx1( stream_t *s, avi_chunk_t *p_chk )
547 unsigned int i_count, i_index;
551 i_count = __MIN( (int64_t)p_chk->common.i_chunk_size, i_read ) / 16;
553 p_chk->idx1.i_entry_count = i_count;
554 p_chk->idx1.i_entry_max = i_count;
557 p_chk->idx1.entry = xcalloc( i_count, sizeof( idx1_entry_t ) );
559 for( i_index = 0; i_index < i_count ; i_index++ )
561 AVI_READFOURCC( p_chk->idx1.entry[i_index].i_fourcc );
562 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_flags );
563 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_pos );
564 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_length );
569 p_chk->idx1.entry = NULL;
572 msg_Dbg( (vlc_object_t*)s, "idx1: index entry:%d", i_count );
574 AVI_READCHUNK_EXIT( VLC_SUCCESS );
577 static void AVI_ChunkFree_idx1( avi_chunk_t *p_chk )
579 p_chk->idx1.i_entry_count = 0;
580 p_chk->idx1.i_entry_max = 0;
581 FREENULL( p_chk->idx1.entry );
586 static int AVI_ChunkRead_indx( stream_t *s, avi_chunk_t *p_chk )
588 unsigned int i_count, i;
590 avi_chunk_indx_t *p_indx = (avi_chunk_indx_t*)p_chk;
594 AVI_READ2BYTES( p_indx->i_longsperentry );
595 AVI_READ1BYTE ( p_indx->i_indexsubtype );
596 AVI_READ1BYTE ( p_indx->i_indextype );
597 AVI_READ4BYTES( p_indx->i_entriesinuse );
599 AVI_READ4BYTES( p_indx->i_id );
600 p_indx->idx.std = NULL;
601 p_indx->idx.field = NULL;
602 p_indx->idx.super = NULL;
604 if( p_indx->i_indextype == AVI_INDEX_OF_CHUNKS && p_indx->i_indexsubtype == 0 )
606 AVI_READ8BYTES( p_indx->i_baseoffset );
607 AVI_READ4BYTES( i_dummy );
609 i_count = __MIN( p_indx->i_entriesinuse, i_read / 8 );
610 p_indx->i_entriesinuse = i_count;
611 p_indx->idx.std = xcalloc( i_count, sizeof( indx_std_entry_t ) );
613 for( i = 0; i < i_count; i++ )
615 AVI_READ4BYTES( p_indx->idx.std[i].i_offset );
616 AVI_READ4BYTES( p_indx->idx.std[i].i_size );
619 else if( p_indx->i_indextype == AVI_INDEX_OF_CHUNKS && p_indx->i_indexsubtype == AVI_INDEX_2FIELD )
621 AVI_READ8BYTES( p_indx->i_baseoffset );
622 AVI_READ4BYTES( i_dummy );
624 i_count = __MIN( p_indx->i_entriesinuse, i_read / 12 );
625 p_indx->i_entriesinuse = i_count;
626 p_indx->idx.field = xcalloc( i_count, sizeof( indx_field_entry_t ) );
627 for( i = 0; i < i_count; i++ )
629 AVI_READ4BYTES( p_indx->idx.field[i].i_offset );
630 AVI_READ4BYTES( p_indx->idx.field[i].i_size );
631 AVI_READ4BYTES( p_indx->idx.field[i].i_offsetfield2 );
634 else if( p_indx->i_indextype == AVI_INDEX_OF_INDEXES )
636 p_indx->i_baseoffset = 0;
637 AVI_READ4BYTES( i_dummy );
638 AVI_READ4BYTES( i_dummy );
639 AVI_READ4BYTES( i_dummy );
641 i_count = __MIN( p_indx->i_entriesinuse, i_read / 16 );
642 p_indx->i_entriesinuse = i_count;
643 p_indx->idx.super = xcalloc( i_count, sizeof( indx_super_entry_t ) );
645 for( i = 0; i < i_count; i++ )
647 AVI_READ8BYTES( p_indx->idx.super[i].i_offset );
648 AVI_READ4BYTES( p_indx->idx.super[i].i_size );
649 AVI_READ4BYTES( p_indx->idx.super[i].i_duration );
654 msg_Warn( (vlc_object_t*)s, "unknow type/subtype index" );
658 msg_Dbg( (vlc_object_t*)s, "indx: type=%d subtype=%d entry=%d", p_indx->i_indextype, p_indx->i_indexsubtype, p_indx->i_entriesinuse );
660 AVI_READCHUNK_EXIT( VLC_SUCCESS );
662 static void AVI_ChunkFree_indx( avi_chunk_t *p_chk )
664 avi_chunk_indx_t *p_indx = (avi_chunk_indx_t*)p_chk;
666 FREENULL( p_indx->idx.std );
667 FREENULL( p_indx->idx.field );
668 FREENULL( p_indx->idx.super );
671 static int AVI_ChunkRead_vprp( stream_t *s, avi_chunk_t *p_chk )
673 avi_chunk_vprp_t *p_vprp = (avi_chunk_vprp_t*)p_chk;
677 AVI_READ4BYTES( p_vprp->i_video_format_token );
678 AVI_READ4BYTES( p_vprp->i_video_standard );
679 AVI_READ4BYTES( p_vprp->i_vertical_refresh );
680 AVI_READ4BYTES( p_vprp->i_h_total_in_t );
681 AVI_READ4BYTES( p_vprp->i_v_total_in_lines );
682 AVI_READ4BYTES( p_vprp->i_frame_aspect_ratio );
683 AVI_READ4BYTES( p_vprp->i_frame_width_in_pixels );
684 AVI_READ4BYTES( p_vprp->i_frame_height_in_pixels );
685 AVI_READ4BYTES( p_vprp->i_nb_fields_per_frame );
686 for( unsigned i = 0; i < __MIN( p_vprp->i_nb_fields_per_frame, 2 ); i++ )
688 AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_height );
689 AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_width );
690 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_height );
691 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_width );
692 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_x_offset );
693 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_y_offset );
694 AVI_READ4BYTES( p_vprp->field_info[i].i_video_x_offset_in_t );
695 AVI_READ4BYTES( p_vprp->field_info[i].i_video_y_valid_start_line );
699 msg_Dbg( (vlc_object_t*)s, "vprp: format:%d standard:%d",
700 p_vprp->i_video_format_token, p_vprp->i_video_standard );
702 AVI_READCHUNK_EXIT( VLC_SUCCESS );
705 static int AVI_ChunkRead_dmlh( stream_t *s, avi_chunk_t *p_chk )
707 avi_chunk_dmlh_t *p_dmlh = (avi_chunk_dmlh_t*)p_chk;
711 AVI_READ4BYTES( p_dmlh->dwTotalFrames );
714 msg_Dbg( (vlc_object_t*)s, "dmlh: dwTotalFrames %d",
715 p_dmlh->dwTotalFrames );
717 AVI_READCHUNK_EXIT( VLC_SUCCESS );
722 vlc_fourcc_t i_fourcc;
723 const char *psz_type;
726 { AVIFOURCC_IARL, "Archive location" },
727 { AVIFOURCC_IART, "Artist" },
728 { AVIFOURCC_ICMS, "Commisioned" },
729 { AVIFOURCC_ICMT, "Comments" },
730 { AVIFOURCC_ICOP, "Copyright" },
731 { AVIFOURCC_ICRD, "Creation date" },
732 { AVIFOURCC_ICRP, "Cropped" },
733 { AVIFOURCC_IDIM, "Dimensions" },
734 { AVIFOURCC_IDPI, "Dots per inch" },
735 { AVIFOURCC_IENG, "Engineer" },
736 { AVIFOURCC_IGNR, "Genre" },
737 { AVIFOURCC_ISGN, "Secondary Genre" },
738 { AVIFOURCC_IKEY, "Keywords" },
739 { AVIFOURCC_ILGT, "Lightness" },
740 { AVIFOURCC_IMED, "Medium" },
741 { AVIFOURCC_INAM, "Name" },
742 { AVIFOURCC_IPLT, "Palette setting" },
743 { AVIFOURCC_IPRD, "Product" },
744 { AVIFOURCC_ISBJ, "Subject" },
745 { AVIFOURCC_ISFT, "Software" },
746 { AVIFOURCC_ISHP, "Sharpness" },
747 { AVIFOURCC_ISRC, "Source" },
748 { AVIFOURCC_ISRF, "Source form" },
749 { AVIFOURCC_ITCH, "Technician" },
750 { AVIFOURCC_ISMP, "Time code" },
751 { AVIFOURCC_IDIT, "Digitalization time" },
752 { AVIFOURCC_IWRI, "Writer" },
753 { AVIFOURCC_IPRO, "Producer" },
754 { AVIFOURCC_ICNM, "Cinematographer" },
755 { AVIFOURCC_IPDS, "Production designer" },
756 { AVIFOURCC_IEDT, "Editor" },
757 { AVIFOURCC_ICDS, "Costume designer" },
758 { AVIFOURCC_IMUS, "Music" },
759 { AVIFOURCC_ISTD, "Production studio" },
760 { AVIFOURCC_IDST, "Distributor" },
761 { AVIFOURCC_ICNT, "Country" },
762 { AVIFOURCC_ISTR, "Starring" },
763 { AVIFOURCC_IFRM, "Total number of parts" },
764 { AVIFOURCC_strn, "Stream name" },
767 static int AVI_ChunkRead_strz( stream_t *s, avi_chunk_t *p_chk )
770 avi_chunk_STRING_t *p_strz = (avi_chunk_STRING_t*)p_chk;
773 for( i_index = 0;; i_index++)
775 if( !AVI_strz_type[i_index].i_fourcc ||
776 AVI_strz_type[i_index].i_fourcc == p_strz->i_chunk_fourcc )
781 p_strz->p_type = strdup( AVI_strz_type[i_index].psz_type );
782 p_strz->p_str = xmalloc( p_strz->i_chunk_size + 1);
784 if( p_strz->i_chunk_size )
786 memcpy( p_strz->p_str, p_read, p_strz->i_chunk_size );
788 p_strz->p_str[p_strz->i_chunk_size] = 0;
791 msg_Dbg( (vlc_object_t*)s, "%4.4s: %s : %s",
792 (char*)&p_strz->i_chunk_fourcc, p_strz->p_type, p_strz->p_str);
794 AVI_READCHUNK_EXIT( VLC_SUCCESS );
796 static void AVI_ChunkFree_strz( avi_chunk_t *p_chk )
798 avi_chunk_STRING_t *p_strz = (avi_chunk_STRING_t*)p_chk;
799 FREENULL( p_strz->p_type );
800 FREENULL( p_strz->p_str );
803 static int AVI_ChunkRead_nothing( stream_t *s, avi_chunk_t *p_chk )
805 return AVI_NextChunk( s, p_chk );
807 static void AVI_ChunkFree_nothing( avi_chunk_t *p_chk )
814 vlc_fourcc_t i_fourcc;
815 int (*AVI_ChunkRead_function)( stream_t *s, avi_chunk_t *p_chk );
816 void (*AVI_ChunkFree_function)( avi_chunk_t *p_chk );
817 } AVI_Chunk_Function [] =
819 { AVIFOURCC_RIFF, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
820 { AVIFOURCC_ON2, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
821 { AVIFOURCC_LIST, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
822 { AVIFOURCC_avih, AVI_ChunkRead_avih, AVI_ChunkFree_nothing },
823 { AVIFOURCC_ON2h, AVI_ChunkRead_avih, AVI_ChunkFree_nothing },
824 { AVIFOURCC_strh, AVI_ChunkRead_strh, AVI_ChunkFree_nothing },
825 { AVIFOURCC_strf, AVI_ChunkRead_strf, AVI_ChunkFree_strf },
826 { AVIFOURCC_strd, AVI_ChunkRead_strd, AVI_ChunkFree_strd },
827 { AVIFOURCC_idx1, AVI_ChunkRead_idx1, AVI_ChunkFree_idx1 },
828 { AVIFOURCC_indx, AVI_ChunkRead_indx, AVI_ChunkFree_indx },
829 { AVIFOURCC_vprp, AVI_ChunkRead_vprp, AVI_ChunkFree_nothing },
830 { AVIFOURCC_JUNK, AVI_ChunkRead_nothing, AVI_ChunkFree_nothing },
831 { AVIFOURCC_dmlh, AVI_ChunkRead_dmlh, AVI_ChunkFree_nothing },
833 { AVIFOURCC_IARL, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
834 { AVIFOURCC_IART, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
835 { AVIFOURCC_ICMS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
836 { AVIFOURCC_ICMT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
837 { AVIFOURCC_ICOP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
838 { AVIFOURCC_ICRD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
839 { AVIFOURCC_ICRP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
840 { AVIFOURCC_IDIM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
841 { AVIFOURCC_IDPI, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
842 { AVIFOURCC_IENG, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
843 { AVIFOURCC_IGNR, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
844 { AVIFOURCC_ISGN, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
845 { AVIFOURCC_IKEY, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
846 { AVIFOURCC_ILGT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
847 { AVIFOURCC_IMED, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
848 { AVIFOURCC_INAM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
849 { AVIFOURCC_IPLT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
850 { AVIFOURCC_IPRD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
851 { AVIFOURCC_ISBJ, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
852 { AVIFOURCC_ISFT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
853 { AVIFOURCC_ISHP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
854 { AVIFOURCC_ISRC, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
855 { AVIFOURCC_ISRF, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
856 { AVIFOURCC_ITCH, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
857 { AVIFOURCC_ISMP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
858 { AVIFOURCC_IDIT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
859 { AVIFOURCC_ILNG, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
860 { AVIFOURCC_IRTD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
861 { AVIFOURCC_IWEB, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
862 { AVIFOURCC_IPRT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
863 { AVIFOURCC_IWRI, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
864 { AVIFOURCC_IPRO, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
865 { AVIFOURCC_ICNM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
866 { AVIFOURCC_IPDS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
867 { AVIFOURCC_IEDT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
868 { AVIFOURCC_ICDS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
869 { AVIFOURCC_IMUS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
870 { AVIFOURCC_ISTD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
871 { AVIFOURCC_IDST, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
872 { AVIFOURCC_ICNT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
873 { AVIFOURCC_ISTR, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
874 { AVIFOURCC_IFRM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
877 { AVIFOURCC_strn, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
881 static int AVI_ChunkFunctionFind( vlc_fourcc_t i_fourcc )
883 unsigned int i_index;
884 for( i_index = 0; ; i_index++ )
886 if( ( AVI_Chunk_Function[i_index].i_fourcc == i_fourcc )||
887 ( AVI_Chunk_Function[i_index].i_fourcc == 0 ) )
894 int AVI_ChunkRead( stream_t *s, avi_chunk_t *p_chk, avi_chunk_t *p_father )
900 msg_Warn( (vlc_object_t*)s, "cannot read null chunk" );
904 if( AVI_ChunkReadCommon( s, p_chk ) )
906 msg_Warn( (vlc_object_t*)s, "cannot read one chunk" );
910 if( p_chk->common.i_chunk_fourcc == VLC_FOURCC( 0, 0, 0, 0 ) )
912 msg_Warn( (vlc_object_t*)s, "found null fourcc chunk (corrupted file?)" );
913 return AVI_ZERO_FOURCC;
915 p_chk->common.p_father = p_father;
917 i_index = AVI_ChunkFunctionFind( p_chk->common.i_chunk_fourcc );
918 if( AVI_Chunk_Function[i_index].AVI_ChunkRead_function )
920 int i_return = AVI_Chunk_Function[i_index].AVI_ChunkRead_function( s, p_chk );
921 if ( i_return == AVI_STRD_ZERO_CHUNK || i_return == AVI_ZERO_FOURCC )
923 if ( !p_father ) return VLC_EGENERIC;
924 return AVI_NextChunk( s, p_father );
928 else if( ( ((char*)&p_chk->common.i_chunk_fourcc)[0] == 'i' &&
929 ((char*)&p_chk->common.i_chunk_fourcc)[1] == 'x' ) ||
930 ( ((char*)&p_chk->common.i_chunk_fourcc)[2] == 'i' &&
931 ((char*)&p_chk->common.i_chunk_fourcc)[3] == 'x' ) )
933 p_chk->common.i_chunk_fourcc = AVIFOURCC_indx;
934 return AVI_ChunkRead_indx( s, p_chk );
937 msg_Warn( (vlc_object_t*)s, "unknown chunk: %4.4s (not loaded)",
938 (char*)&p_chk->common.i_chunk_fourcc );
939 return AVI_NextChunk( s, p_chk );
942 void AVI_ChunkFree( stream_t *s,
946 avi_chunk_t *p_child, *p_next;
953 /* Free all child chunk */
954 p_child = p_chk->common.p_first;
957 p_next = p_child->common.p_next;
958 AVI_ChunkFree( s, p_child );
963 i_index = AVI_ChunkFunctionFind( p_chk->common.i_chunk_fourcc );
964 if( AVI_Chunk_Function[i_index].AVI_ChunkFree_function )
967 msg_Dbg( (vlc_object_t*)s, "free chunk %4.4s",
968 (char*)&p_chk->common.i_chunk_fourcc );
970 AVI_Chunk_Function[i_index].AVI_ChunkFree_function( p_chk);
974 msg_Warn( (vlc_object_t*)s, "unknown chunk: %4.4s (not unloaded)",
975 (char*)&p_chk->common.i_chunk_fourcc );
977 p_chk->common.p_first = NULL;
978 p_chk->common.p_last = NULL;
983 static void AVI_ChunkDumpDebug_level( vlc_object_t *p_obj,
984 avi_chunk_t *p_chk, unsigned i_level )
986 avi_chunk_t *p_child;
989 if( i_level >= (sizeof(str) - 1)/4 )
992 memset( str, ' ', sizeof( str ) );
993 for( unsigned i = 1; i < i_level; i++ )
997 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_RIFF ||
998 p_chk->common.i_chunk_fourcc == AVIFOURCC_ON2 ||
999 p_chk->common.i_chunk_fourcc == AVIFOURCC_LIST )
1001 snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
1002 "%c %4.4s-%4.4s size:%"PRIu64" pos:%"PRIu64,
1003 i_level ? '+' : '*',
1004 (char*)&p_chk->common.i_chunk_fourcc,
1005 (char*)&p_chk->list.i_type,
1006 p_chk->common.i_chunk_size,
1007 p_chk->common.i_chunk_pos );
1011 snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
1012 "+ %4.4s size:%"PRIu64" pos:%"PRIu64,
1013 (char*)&p_chk->common.i_chunk_fourcc,
1014 p_chk->common.i_chunk_size,
1015 p_chk->common.i_chunk_pos );
1017 msg_Dbg( p_obj, "%s", str );
1019 p_child = p_chk->common.p_first;
1022 AVI_ChunkDumpDebug_level( p_obj, p_child, i_level + 1 );
1023 p_child = p_child->common.p_next;
1027 int AVI_ChunkReadRoot( stream_t *s, avi_chunk_t *p_root )
1029 avi_chunk_list_t *p_list = (avi_chunk_list_t*)p_root;
1033 stream_Control( s, STREAM_CAN_FASTSEEK, &b_seekable );
1035 p_list->i_chunk_pos = 0;
1036 p_list->i_chunk_size = stream_Size( s );
1037 p_list->i_chunk_fourcc = AVIFOURCC_LIST;
1038 p_list->p_father = NULL;
1039 p_list->p_next = NULL;
1040 p_list->p_first = NULL;
1041 p_list->p_last = NULL;
1043 p_list->i_type = VLC_FOURCC( 'r', 'o', 'o', 't' );
1047 p_chk = xmalloc( sizeof( avi_chunk_t ) );
1048 memset( p_chk, 0, sizeof( avi_chunk_t ) );
1049 if( !p_root->common.p_first )
1051 p_root->common.p_first = p_chk;
1055 p_root->common.p_last->common.p_next = p_chk;
1057 p_root->common.p_last = p_chk;
1059 if( AVI_ChunkRead( s, p_chk, p_root ) ||
1060 ( stream_Tell( s ) >=
1061 (off_t)p_chk->common.p_father->common.i_chunk_pos +
1062 (off_t)__EVEN( p_chk->common.p_father->common.i_chunk_size ) ) )
1066 /* If we can't seek then stop when we 've found first RIFF-AVI */
1067 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_RIFF &&
1068 p_chk->list.i_type == AVIFOURCC_AVI && !b_seekable )
1074 AVI_ChunkDumpDebug_level( (vlc_object_t*)s, p_root, 0 );
1078 void AVI_ChunkFreeRoot( stream_t *s,
1079 avi_chunk_t *p_chk )
1081 AVI_ChunkFree( s, p_chk );
1085 int _AVI_ChunkCount( avi_chunk_t *p_chk, vlc_fourcc_t i_fourcc )
1088 avi_chunk_t *p_child;
1096 p_child = p_chk->common.p_first;
1099 if( p_child->common.i_chunk_fourcc == i_fourcc ||
1100 ( p_child->common.i_chunk_fourcc == AVIFOURCC_LIST &&
1101 p_child->list.i_type == i_fourcc ) )
1105 p_child = p_child->common.p_next;
1110 void *_AVI_ChunkFind( avi_chunk_t *p_chk,
1111 vlc_fourcc_t i_fourcc, int i_number )
1113 avi_chunk_t *p_child;
1118 p_child = p_chk->common.p_first;
1122 if( p_child->common.i_chunk_fourcc == i_fourcc ||
1123 ( p_child->common.i_chunk_fourcc == AVIFOURCC_LIST &&
1124 p_child->list.i_type == i_fourcc ) )
1134 p_child = p_child->common.p_next;