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" );
146 return AVI_NextChunk( s, p_container );
148 return VLC_SUCCESS; /* point at begining of LIST-movi */
151 if( stream_Read( s, NULL, 12 ) != 12 )
153 msg_Warn( (vlc_object_t*)s, "cannot enter chunk" );
158 msg_Dbg( (vlc_object_t*)s,
159 "found LIST chunk: \'%4.4s\'",
160 (char*)&p_container->list.i_type );
162 msg_Dbg( (vlc_object_t*)s, "<list \'%4.4s\'>", (char*)&p_container->list.i_type );
165 p_chk = xmalloc( sizeof( avi_chunk_t ) );
166 memset( p_chk, 0, sizeof( avi_chunk_t ) );
167 if( !p_container->common.p_first )
169 p_container->common.p_first = p_chk;
173 p_container->common.p_last->common.p_next = p_chk;
175 p_container->common.p_last = p_chk;
177 i_ret = AVI_ChunkRead( s, p_chk, p_container );
182 if( p_chk->common.p_father->common.i_chunk_size > 0 &&
184 (off_t)p_chk->common.p_father->common.i_chunk_pos +
185 (off_t)__EVEN( p_chk->common.p_father->common.i_chunk_size ) ) )
190 /* If we can't seek then stop when we 've found LIST-movi */
191 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_LIST &&
192 p_chk->list.i_type == AVIFOURCC_movi &&
193 ( !b_seekable || p_chk->common.i_chunk_size == 0 ) )
199 msg_Dbg( (vlc_object_t*)s, "</list \'%4.4s\'>", (char*)&p_container->list.i_type );
201 if ( i_ret == AVI_ZERO_FOURCC ) return i_ret;
205 #define AVI_READCHUNK_ENTER \
206 int64_t i_read = __EVEN(p_chk->common.i_chunk_size ) + 8; \
207 if( i_read > 100000000 ) \
209 msg_Err( s, "Big chunk ignored" ); \
210 return VLC_EGENERIC; \
212 uint8_t *p_read, *p_buff; \
213 if( !( p_read = p_buff = malloc(i_read ) ) ) \
215 return VLC_EGENERIC; \
217 i_read = stream_Read( s, p_read, i_read ); \
218 if( i_read < (int64_t)__EVEN(p_chk->common.i_chunk_size ) + 8 ) \
221 return VLC_EGENERIC; \
226 #define AVI_READ( res, func, size ) \
227 if( i_read < size ) { \
229 return VLC_EGENERIC; \
232 res = func( p_read ); \
235 #define AVI_READCHUNK_EXIT( code ) \
239 static inline uint8_t GetB( uint8_t *ptr )
244 #define AVI_READ1BYTE( i_byte ) \
245 AVI_READ( i_byte, GetB, 1 )
247 #define AVI_READ2BYTES( i_word ) \
248 AVI_READ( i_word, GetWLE, 2 )
250 #define AVI_READ4BYTES( i_dword ) \
251 AVI_READ( i_dword, GetDWLE, 4 )
253 #define AVI_READ8BYTES( i_qword ) \
254 AVI_READ( i_qword, GetQWLE, 8 )
256 #define AVI_READFOURCC( i_dword ) \
257 AVI_READ( i_dword, GetFOURCC, 4 )
259 static int AVI_ChunkRead_avih( stream_t *s, avi_chunk_t *p_chk )
263 p_chk->common.i_chunk_fourcc = AVIFOURCC_avih;
264 AVI_READ4BYTES( p_chk->avih.i_microsecperframe);
265 AVI_READ4BYTES( p_chk->avih.i_maxbytespersec );
266 AVI_READ4BYTES( p_chk->avih.i_reserved1 );
267 AVI_READ4BYTES( p_chk->avih.i_flags );
268 AVI_READ4BYTES( p_chk->avih.i_totalframes );
269 AVI_READ4BYTES( p_chk->avih.i_initialframes );
270 AVI_READ4BYTES( p_chk->avih.i_streams );
271 AVI_READ4BYTES( p_chk->avih.i_suggestedbuffersize );
272 AVI_READ4BYTES( p_chk->avih.i_width );
273 AVI_READ4BYTES( p_chk->avih.i_height );
274 AVI_READ4BYTES( p_chk->avih.i_scale );
275 AVI_READ4BYTES( p_chk->avih.i_rate );
276 AVI_READ4BYTES( p_chk->avih.i_start );
277 AVI_READ4BYTES( p_chk->avih.i_length );
279 msg_Dbg( (vlc_object_t*)s,
280 "avih: streams:%d flags:%s%s%s%s %dx%d",
281 p_chk->avih.i_streams,
282 p_chk->avih.i_flags&AVIF_HASINDEX?" HAS_INDEX":"",
283 p_chk->avih.i_flags&AVIF_MUSTUSEINDEX?" MUST_USE_INDEX":"",
284 p_chk->avih.i_flags&AVIF_ISINTERLEAVED?" IS_INTERLEAVED":"",
285 p_chk->avih.i_flags&AVIF_TRUSTCKTYPE?" TRUST_CKTYPE":"",
286 p_chk->avih.i_width, p_chk->avih.i_height );
288 AVI_READCHUNK_EXIT( VLC_SUCCESS );
291 static int AVI_ChunkRead_strh( stream_t *s, avi_chunk_t *p_chk )
295 AVI_READFOURCC( p_chk->strh.i_type );
296 AVI_READFOURCC( p_chk->strh.i_handler );
297 AVI_READ4BYTES( p_chk->strh.i_flags );
298 AVI_READ4BYTES( p_chk->strh.i_reserved1 );
299 AVI_READ4BYTES( p_chk->strh.i_initialframes );
300 AVI_READ4BYTES( p_chk->strh.i_scale );
301 AVI_READ4BYTES( p_chk->strh.i_rate );
302 AVI_READ4BYTES( p_chk->strh.i_start );
303 AVI_READ4BYTES( p_chk->strh.i_length );
304 AVI_READ4BYTES( p_chk->strh.i_suggestedbuffersize );
305 AVI_READ4BYTES( p_chk->strh.i_quality );
306 AVI_READ4BYTES( p_chk->strh.i_samplesize );
308 msg_Dbg( (vlc_object_t*)s,
309 "strh: type:%4.4s handler:0x%8.8x samplesize:%d %.2ffps",
310 (char*)&p_chk->strh.i_type,
311 p_chk->strh.i_handler,
312 p_chk->strh.i_samplesize,
313 ( p_chk->strh.i_scale ?
314 (float)p_chk->strh.i_rate / (float)p_chk->strh.i_scale : -1) );
317 AVI_READCHUNK_EXIT( VLC_SUCCESS );
320 static int AVI_ChunkRead_strf( stream_t *s, avi_chunk_t *p_chk )
325 if( p_chk->common.p_father == NULL )
327 msg_Err( (vlc_object_t*)s, "malformed avi file" );
328 AVI_READCHUNK_EXIT( VLC_EGENERIC );
330 if( !( p_strh = AVI_ChunkFind( p_chk->common.p_father, AVIFOURCC_strh, 0 ) ) )
332 msg_Err( (vlc_object_t*)s, "malformed avi file" );
333 AVI_READCHUNK_EXIT( VLC_EGENERIC );
336 switch( p_strh->strh.i_type )
338 case( AVIFOURCC_auds ):
339 p_chk->strf.auds.i_cat = AUDIO_ES;
340 p_chk->strf.auds.p_wf = xmalloc( __MAX( p_chk->common.i_chunk_size, sizeof( WAVEFORMATEX ) ) );
341 if ( !p_chk->strf.auds.p_wf )
343 AVI_READCHUNK_EXIT( VLC_ENOMEM );
345 AVI_READ2BYTES( p_chk->strf.auds.p_wf->wFormatTag );
346 AVI_READ2BYTES( p_chk->strf.auds.p_wf->nChannels );
347 AVI_READ4BYTES( p_chk->strf.auds.p_wf->nSamplesPerSec );
348 AVI_READ4BYTES( p_chk->strf.auds.p_wf->nAvgBytesPerSec );
349 AVI_READ2BYTES( p_chk->strf.auds.p_wf->nBlockAlign );
350 AVI_READ2BYTES( p_chk->strf.auds.p_wf->wBitsPerSample );
352 if( p_chk->strf.auds.p_wf->wFormatTag != WAVE_FORMAT_PCM
353 && p_chk->common.i_chunk_size > sizeof( WAVEFORMATEX ) )
355 AVI_READ2BYTES( p_chk->strf.auds.p_wf->cbSize );
357 /* prevent segfault */
358 if( p_chk->strf.auds.p_wf->cbSize >
359 p_chk->common.i_chunk_size - sizeof( WAVEFORMATEX ) )
361 p_chk->strf.auds.p_wf->cbSize =
362 p_chk->common.i_chunk_size - sizeof( WAVEFORMATEX );
365 if( p_chk->strf.auds.p_wf->wFormatTag == WAVE_FORMAT_EXTENSIBLE )
367 msg_Dbg( s, "Extended header found" );
372 p_chk->strf.auds.p_wf->cbSize = 0;
374 if( p_chk->strf.auds.p_wf->cbSize > 0 )
376 memcpy( &p_chk->strf.auds.p_wf[1] ,
377 p_buff + 8 + sizeof( WAVEFORMATEX ), /* 8=fourcc+size */
378 p_chk->strf.auds.p_wf->cbSize );
381 msg_Dbg( (vlc_object_t*)s,
382 "strf: audio:0x%4.4x channels:%d %dHz %dbits/sample %dkb/s",
383 p_chk->strf.auds.p_wf->wFormatTag,
384 p_chk->strf.auds.p_wf->nChannels,
385 p_chk->strf.auds.p_wf->nSamplesPerSec,
386 p_chk->strf.auds.p_wf->wBitsPerSample,
387 p_chk->strf.auds.p_wf->nAvgBytesPerSec * 8 / 1024 );
390 case( AVIFOURCC_vids ):
391 p_strh->strh.i_samplesize = 0; /* XXX for ffmpeg avi file */
392 p_chk->strf.vids.i_cat = VIDEO_ES;
393 p_chk->strf.vids.p_bih = xmalloc( __MAX( p_chk->common.i_chunk_size,
394 sizeof( *p_chk->strf.vids.p_bih ) ) );
395 if ( !p_chk->strf.vids.p_bih )
397 AVI_READCHUNK_EXIT( VLC_ENOMEM );
399 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biSize );
400 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biWidth );
401 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biHeight );
402 AVI_READ2BYTES( p_chk->strf.vids.p_bih->biPlanes );
403 AVI_READ2BYTES( p_chk->strf.vids.p_bih->biBitCount );
404 AVI_READFOURCC( p_chk->strf.vids.p_bih->biCompression );
405 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biSizeImage );
406 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biXPelsPerMeter );
407 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biYPelsPerMeter );
408 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biClrUsed );
409 AVI_READ4BYTES( p_chk->strf.vids.p_bih->biClrImportant );
410 if( p_chk->strf.vids.p_bih->biSize > p_chk->common.i_chunk_size )
412 p_chk->strf.vids.p_bih->biSize = p_chk->common.i_chunk_size;
414 uint64_t i_extrasize = p_chk->common.i_chunk_size - sizeof(VLC_BITMAPINFOHEADER);
415 if( i_extrasize > 0 )
417 /* There's a color palette appended, set up VLC_BITMAPINFO */
418 memcpy( &p_chk->strf.vids.p_bih[1],
419 p_buff + 8 + sizeof(VLC_BITMAPINFOHEADER), /* 8=fourrc+size */
422 if ( !p_chk->strf.vids.p_bih->biClrUsed )
423 p_chk->strf.vids.p_bih->biClrUsed = (1 << p_chk->strf.vids.p_bih->biBitCount);
425 if( i_extrasize > (UINT32_MAX * sizeof(uint32_t)) )
426 p_chk->strf.vids.p_bih->biClrUsed = UINT32_MAX;
429 p_chk->strf.vids.p_bih->biClrUsed =
430 __MAX( i_extrasize / sizeof(uint32_t),
431 p_chk->strf.vids.p_bih->biClrUsed );
434 else p_chk->strf.vids.p_bih->biClrUsed = 0;
436 msg_Dbg( (vlc_object_t*)s,
437 "strf: video:%4.4s %"PRIu32"x%"PRIu32" planes:%d %dbpp",
438 (char*)&p_chk->strf.vids.p_bih->biCompression,
439 (uint32_t)p_chk->strf.vids.p_bih->biWidth,
440 (uint32_t)p_chk->strf.vids.p_bih->biHeight,
441 p_chk->strf.vids.p_bih->biPlanes,
442 p_chk->strf.vids.p_bih->biBitCount );
447 p_chk->strf.common.i_cat = UNKNOWN_ES;
449 case( AVIFOURCC_txts ):
450 p_chk->strf.common.i_cat = SPU_ES;
453 msg_Warn( (vlc_object_t*)s, "unknown stream type: %4.4s",
454 (char*)&p_strh->strh.i_type );
455 p_chk->strf.common.i_cat = UNKNOWN_ES;
458 AVI_READCHUNK_EXIT( VLC_SUCCESS );
460 static void AVI_ChunkFree_strf( avi_chunk_t *p_chk )
462 avi_chunk_strf_t *p_strf = (avi_chunk_strf_t*)p_chk;
463 if( p_strf->common.i_cat == AUDIO_ES )
465 FREENULL( p_strf->auds.p_wf );
467 else if( p_strf->common.i_cat == VIDEO_ES )
469 FREENULL( p_strf->vids.p_bih );
473 static int AVI_ChunkRead_strd( stream_t *s, avi_chunk_t *p_chk )
475 if ( p_chk->common.i_chunk_size == 0 )
477 msg_Dbg( (vlc_object_t*)s, "Zero sized pre-JUNK section met" );
478 return AVI_STRD_ZERO_CHUNK;
482 p_chk->strd.p_data = xmalloc( p_chk->common.i_chunk_size );
483 memcpy( p_chk->strd.p_data, p_buff + 8, p_chk->common.i_chunk_size );
484 AVI_READCHUNK_EXIT( VLC_SUCCESS );
487 static void AVI_ChunkFree_strd( avi_chunk_t *p_chk )
489 free( p_chk->strd.p_data );
492 static int AVI_ChunkRead_idx1( stream_t *s, avi_chunk_t *p_chk )
494 unsigned int i_count, i_index;
498 i_count = __MIN( (int64_t)p_chk->common.i_chunk_size, i_read ) / 16;
500 p_chk->idx1.i_entry_count = i_count;
501 p_chk->idx1.i_entry_max = i_count;
504 p_chk->idx1.entry = xcalloc( i_count, sizeof( idx1_entry_t ) );
506 for( i_index = 0; i_index < i_count ; i_index++ )
508 AVI_READFOURCC( p_chk->idx1.entry[i_index].i_fourcc );
509 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_flags );
510 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_pos );
511 AVI_READ4BYTES( p_chk->idx1.entry[i_index].i_length );
516 p_chk->idx1.entry = NULL;
519 msg_Dbg( (vlc_object_t*)s, "idx1: index entry:%d", i_count );
521 AVI_READCHUNK_EXIT( VLC_SUCCESS );
524 static void AVI_ChunkFree_idx1( avi_chunk_t *p_chk )
526 p_chk->idx1.i_entry_count = 0;
527 p_chk->idx1.i_entry_max = 0;
528 FREENULL( p_chk->idx1.entry );
533 static int AVI_ChunkRead_indx( stream_t *s, avi_chunk_t *p_chk )
535 unsigned int i_count, i;
537 avi_chunk_indx_t *p_indx = (avi_chunk_indx_t*)p_chk;
541 AVI_READ2BYTES( p_indx->i_longsperentry );
542 AVI_READ1BYTE ( p_indx->i_indexsubtype );
543 AVI_READ1BYTE ( p_indx->i_indextype );
544 AVI_READ4BYTES( p_indx->i_entriesinuse );
546 AVI_READ4BYTES( p_indx->i_id );
547 p_indx->idx.std = NULL;
548 p_indx->idx.field = NULL;
549 p_indx->idx.super = NULL;
551 if( p_indx->i_indextype == AVI_INDEX_OF_CHUNKS && p_indx->i_indexsubtype == 0 )
553 AVI_READ8BYTES( p_indx->i_baseoffset );
554 AVI_READ4BYTES( i_dummy );
556 i_count = __MIN( p_indx->i_entriesinuse, i_read / 8 );
557 p_indx->i_entriesinuse = i_count;
558 p_indx->idx.std = xcalloc( i_count, sizeof( indx_std_entry_t ) );
560 for( i = 0; i < i_count; i++ )
562 AVI_READ4BYTES( p_indx->idx.std[i].i_offset );
563 AVI_READ4BYTES( p_indx->idx.std[i].i_size );
566 else if( p_indx->i_indextype == AVI_INDEX_OF_CHUNKS && p_indx->i_indexsubtype == AVI_INDEX_2FIELD )
568 AVI_READ8BYTES( p_indx->i_baseoffset );
569 AVI_READ4BYTES( i_dummy );
571 i_count = __MIN( p_indx->i_entriesinuse, i_read / 12 );
572 p_indx->i_entriesinuse = i_count;
573 p_indx->idx.field = xcalloc( i_count, sizeof( indx_field_entry_t ) );
574 for( i = 0; i < i_count; i++ )
576 AVI_READ4BYTES( p_indx->idx.field[i].i_offset );
577 AVI_READ4BYTES( p_indx->idx.field[i].i_size );
578 AVI_READ4BYTES( p_indx->idx.field[i].i_offsetfield2 );
581 else if( p_indx->i_indextype == AVI_INDEX_OF_INDEXES )
583 p_indx->i_baseoffset = 0;
584 AVI_READ4BYTES( i_dummy );
585 AVI_READ4BYTES( i_dummy );
586 AVI_READ4BYTES( i_dummy );
588 i_count = __MIN( p_indx->i_entriesinuse, i_read / 16 );
589 p_indx->i_entriesinuse = i_count;
590 p_indx->idx.super = xcalloc( i_count, sizeof( indx_super_entry_t ) );
592 for( i = 0; i < i_count; i++ )
594 AVI_READ8BYTES( p_indx->idx.super[i].i_offset );
595 AVI_READ4BYTES( p_indx->idx.super[i].i_size );
596 AVI_READ4BYTES( p_indx->idx.super[i].i_duration );
601 msg_Warn( (vlc_object_t*)s, "unknow type/subtype index" );
605 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 );
607 AVI_READCHUNK_EXIT( VLC_SUCCESS );
609 static void AVI_ChunkFree_indx( avi_chunk_t *p_chk )
611 avi_chunk_indx_t *p_indx = (avi_chunk_indx_t*)p_chk;
613 FREENULL( p_indx->idx.std );
614 FREENULL( p_indx->idx.field );
615 FREENULL( p_indx->idx.super );
618 static int AVI_ChunkRead_vprp( stream_t *s, avi_chunk_t *p_chk )
620 avi_chunk_vprp_t *p_vprp = (avi_chunk_vprp_t*)p_chk;
624 AVI_READ4BYTES( p_vprp->i_video_format_token );
625 AVI_READ4BYTES( p_vprp->i_video_standard );
626 AVI_READ4BYTES( p_vprp->i_vertical_refresh );
627 AVI_READ4BYTES( p_vprp->i_h_total_in_t );
628 AVI_READ4BYTES( p_vprp->i_v_total_in_lines );
629 AVI_READ4BYTES( p_vprp->i_frame_aspect_ratio );
630 AVI_READ4BYTES( p_vprp->i_frame_width_in_pixels );
631 AVI_READ4BYTES( p_vprp->i_frame_height_in_pixels );
632 AVI_READ4BYTES( p_vprp->i_nb_fields_per_frame );
633 for( unsigned i = 0; i < __MIN( p_vprp->i_nb_fields_per_frame, 2 ); i++ )
635 AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_height );
636 AVI_READ4BYTES( p_vprp->field_info[i].i_compressed_bm_width );
637 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_height );
638 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_width );
639 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_x_offset );
640 AVI_READ4BYTES( p_vprp->field_info[i].i_valid_bm_y_offset );
641 AVI_READ4BYTES( p_vprp->field_info[i].i_video_x_offset_in_t );
642 AVI_READ4BYTES( p_vprp->field_info[i].i_video_y_valid_start_line );
646 msg_Dbg( (vlc_object_t*)s, "vprp: format:%d standard:%d",
647 p_vprp->i_video_format_token, p_vprp->i_video_standard );
649 AVI_READCHUNK_EXIT( VLC_SUCCESS );
652 static int AVI_ChunkRead_dmlh( stream_t *s, avi_chunk_t *p_chk )
654 avi_chunk_dmlh_t *p_dmlh = (avi_chunk_dmlh_t*)p_chk;
658 AVI_READ4BYTES( p_dmlh->dwTotalFrames );
661 msg_Dbg( (vlc_object_t*)s, "dmlh: dwTotalFrames %d",
662 p_dmlh->dwTotalFrames );
664 AVI_READCHUNK_EXIT( VLC_SUCCESS );
669 vlc_fourcc_t i_fourcc;
670 const char *psz_type;
673 { AVIFOURCC_IARL, "Archive location" },
674 { AVIFOURCC_IART, "Artist" },
675 { AVIFOURCC_ICMS, "Commisioned" },
676 { AVIFOURCC_ICMT, "Comments" },
677 { AVIFOURCC_ICOP, "Copyright" },
678 { AVIFOURCC_ICRD, "Creation date" },
679 { AVIFOURCC_ICRP, "Cropped" },
680 { AVIFOURCC_IDIM, "Dimensions" },
681 { AVIFOURCC_IDPI, "Dots per inch" },
682 { AVIFOURCC_IENG, "Engineer" },
683 { AVIFOURCC_IGNR, "Genre" },
684 { AVIFOURCC_ISGN, "Secondary Genre" },
685 { AVIFOURCC_IKEY, "Keywords" },
686 { AVIFOURCC_ILGT, "Lightness" },
687 { AVIFOURCC_IMED, "Medium" },
688 { AVIFOURCC_INAM, "Name" },
689 { AVIFOURCC_IPLT, "Palette setting" },
690 { AVIFOURCC_IPRD, "Product" },
691 { AVIFOURCC_ISBJ, "Subject" },
692 { AVIFOURCC_ISFT, "Software" },
693 { AVIFOURCC_ISHP, "Sharpness" },
694 { AVIFOURCC_ISRC, "Source" },
695 { AVIFOURCC_ISRF, "Source form" },
696 { AVIFOURCC_ITCH, "Technician" },
697 { AVIFOURCC_ISMP, "Time code" },
698 { AVIFOURCC_IDIT, "Digitalization time" },
699 { AVIFOURCC_IWRI, "Writer" },
700 { AVIFOURCC_IPRO, "Producer" },
701 { AVIFOURCC_ICNM, "Cinematographer" },
702 { AVIFOURCC_IPDS, "Production designer" },
703 { AVIFOURCC_IEDT, "Editor" },
704 { AVIFOURCC_ICDS, "Costume designer" },
705 { AVIFOURCC_IMUS, "Music" },
706 { AVIFOURCC_ISTD, "Production studio" },
707 { AVIFOURCC_IDST, "Distributor" },
708 { AVIFOURCC_ICNT, "Country" },
709 { AVIFOURCC_ISTR, "Starring" },
710 { AVIFOURCC_IFRM, "Total number of parts" },
711 { AVIFOURCC_strn, "Stream name" },
714 static int AVI_ChunkRead_strz( stream_t *s, avi_chunk_t *p_chk )
717 avi_chunk_STRING_t *p_strz = (avi_chunk_STRING_t*)p_chk;
720 for( i_index = 0;; i_index++)
722 if( !AVI_strz_type[i_index].i_fourcc ||
723 AVI_strz_type[i_index].i_fourcc == p_strz->i_chunk_fourcc )
728 p_strz->p_type = strdup( AVI_strz_type[i_index].psz_type );
729 p_strz->p_str = xmalloc( p_strz->i_chunk_size + 1);
731 if( p_strz->i_chunk_size )
733 memcpy( p_strz->p_str, p_read, p_strz->i_chunk_size );
735 p_strz->p_str[p_strz->i_chunk_size] = 0;
738 msg_Dbg( (vlc_object_t*)s, "%4.4s: %s : %s",
739 (char*)&p_strz->i_chunk_fourcc, p_strz->p_type, p_strz->p_str);
741 AVI_READCHUNK_EXIT( VLC_SUCCESS );
743 static void AVI_ChunkFree_strz( avi_chunk_t *p_chk )
745 avi_chunk_STRING_t *p_strz = (avi_chunk_STRING_t*)p_chk;
746 FREENULL( p_strz->p_type );
747 FREENULL( p_strz->p_str );
750 static int AVI_ChunkRead_nothing( stream_t *s, avi_chunk_t *p_chk )
752 return AVI_NextChunk( s, p_chk );
754 static void AVI_ChunkFree_nothing( avi_chunk_t *p_chk )
761 vlc_fourcc_t i_fourcc;
762 int (*AVI_ChunkRead_function)( stream_t *s, avi_chunk_t *p_chk );
763 void (*AVI_ChunkFree_function)( avi_chunk_t *p_chk );
764 } AVI_Chunk_Function [] =
766 { AVIFOURCC_RIFF, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
767 { AVIFOURCC_ON2, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
768 { AVIFOURCC_LIST, AVI_ChunkRead_list, AVI_ChunkFree_nothing },
769 { AVIFOURCC_avih, AVI_ChunkRead_avih, AVI_ChunkFree_nothing },
770 { AVIFOURCC_ON2h, AVI_ChunkRead_avih, AVI_ChunkFree_nothing },
771 { AVIFOURCC_strh, AVI_ChunkRead_strh, AVI_ChunkFree_nothing },
772 { AVIFOURCC_strf, AVI_ChunkRead_strf, AVI_ChunkFree_strf },
773 { AVIFOURCC_strd, AVI_ChunkRead_strd, AVI_ChunkFree_strd },
774 { AVIFOURCC_idx1, AVI_ChunkRead_idx1, AVI_ChunkFree_idx1 },
775 { AVIFOURCC_indx, AVI_ChunkRead_indx, AVI_ChunkFree_indx },
776 { AVIFOURCC_vprp, AVI_ChunkRead_vprp, AVI_ChunkFree_nothing },
777 { AVIFOURCC_JUNK, AVI_ChunkRead_nothing, AVI_ChunkFree_nothing },
778 { AVIFOURCC_dmlh, AVI_ChunkRead_dmlh, AVI_ChunkFree_nothing },
780 { AVIFOURCC_IARL, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
781 { AVIFOURCC_IART, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
782 { AVIFOURCC_ICMS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
783 { AVIFOURCC_ICMT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
784 { AVIFOURCC_ICOP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
785 { AVIFOURCC_ICRD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
786 { AVIFOURCC_ICRP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
787 { AVIFOURCC_IDIM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
788 { AVIFOURCC_IDPI, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
789 { AVIFOURCC_IENG, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
790 { AVIFOURCC_IGNR, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
791 { AVIFOURCC_ISGN, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
792 { AVIFOURCC_IKEY, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
793 { AVIFOURCC_ILGT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
794 { AVIFOURCC_IMED, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
795 { AVIFOURCC_INAM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
796 { AVIFOURCC_IPLT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
797 { AVIFOURCC_IPRD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
798 { AVIFOURCC_ISBJ, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
799 { AVIFOURCC_ISFT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
800 { AVIFOURCC_ISHP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
801 { AVIFOURCC_ISRC, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
802 { AVIFOURCC_ISRF, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
803 { AVIFOURCC_ITCH, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
804 { AVIFOURCC_ISMP, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
805 { AVIFOURCC_IDIT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
806 { AVIFOURCC_ILNG, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
807 { AVIFOURCC_IRTD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
808 { AVIFOURCC_IWEB, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
809 { AVIFOURCC_IPRT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
810 { AVIFOURCC_IWRI, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
811 { AVIFOURCC_IPRO, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
812 { AVIFOURCC_ICNM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
813 { AVIFOURCC_IPDS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
814 { AVIFOURCC_IEDT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
815 { AVIFOURCC_ICDS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
816 { AVIFOURCC_IMUS, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
817 { AVIFOURCC_ISTD, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
818 { AVIFOURCC_IDST, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
819 { AVIFOURCC_ICNT, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
820 { AVIFOURCC_ISTR, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
821 { AVIFOURCC_IFRM, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
824 { AVIFOURCC_strn, AVI_ChunkRead_strz, AVI_ChunkFree_strz },
828 static int AVI_ChunkFunctionFind( vlc_fourcc_t i_fourcc )
830 unsigned int i_index;
831 for( i_index = 0; ; i_index++ )
833 if( ( AVI_Chunk_Function[i_index].i_fourcc == i_fourcc )||
834 ( AVI_Chunk_Function[i_index].i_fourcc == 0 ) )
841 int AVI_ChunkRead( stream_t *s, avi_chunk_t *p_chk, avi_chunk_t *p_father )
847 msg_Warn( (vlc_object_t*)s, "cannot read null chunk" );
851 if( AVI_ChunkReadCommon( s, p_chk ) )
853 msg_Warn( (vlc_object_t*)s, "cannot read one chunk" );
857 if( p_chk->common.i_chunk_fourcc == VLC_FOURCC( 0, 0, 0, 0 ) )
859 msg_Warn( (vlc_object_t*)s, "found null fourcc chunk (corrupted file?)" );
860 return AVI_ZERO_FOURCC;
862 p_chk->common.p_father = p_father;
864 i_index = AVI_ChunkFunctionFind( p_chk->common.i_chunk_fourcc );
865 if( AVI_Chunk_Function[i_index].AVI_ChunkRead_function )
867 int i_return = AVI_Chunk_Function[i_index].AVI_ChunkRead_function( s, p_chk );
868 if ( i_return == AVI_STRD_ZERO_CHUNK || i_return == AVI_ZERO_FOURCC )
870 if ( !p_father ) return VLC_EGENERIC;
871 return AVI_NextChunk( s, p_father );
875 else if( ( ((char*)&p_chk->common.i_chunk_fourcc)[0] == 'i' &&
876 ((char*)&p_chk->common.i_chunk_fourcc)[1] == 'x' ) ||
877 ( ((char*)&p_chk->common.i_chunk_fourcc)[2] == 'i' &&
878 ((char*)&p_chk->common.i_chunk_fourcc)[3] == 'x' ) )
880 p_chk->common.i_chunk_fourcc = AVIFOURCC_indx;
881 return AVI_ChunkRead_indx( s, p_chk );
884 msg_Warn( (vlc_object_t*)s, "unknown chunk: %4.4s (not loaded)",
885 (char*)&p_chk->common.i_chunk_fourcc );
886 return AVI_NextChunk( s, p_chk );
889 void AVI_ChunkFree( stream_t *s,
893 avi_chunk_t *p_child, *p_next;
900 /* Free all child chunk */
901 p_child = p_chk->common.p_first;
904 p_next = p_child->common.p_next;
905 AVI_ChunkFree( s, p_child );
910 i_index = AVI_ChunkFunctionFind( p_chk->common.i_chunk_fourcc );
911 if( AVI_Chunk_Function[i_index].AVI_ChunkFree_function )
914 msg_Dbg( (vlc_object_t*)s, "free chunk %4.4s",
915 (char*)&p_chk->common.i_chunk_fourcc );
917 AVI_Chunk_Function[i_index].AVI_ChunkFree_function( p_chk);
921 msg_Warn( (vlc_object_t*)s, "unknown chunk: %4.4s (not unloaded)",
922 (char*)&p_chk->common.i_chunk_fourcc );
924 p_chk->common.p_first = NULL;
925 p_chk->common.p_last = NULL;
930 static void AVI_ChunkDumpDebug_level( vlc_object_t *p_obj,
931 avi_chunk_t *p_chk, unsigned i_level )
933 avi_chunk_t *p_child;
936 if( i_level >= (sizeof(str) - 1)/4 )
939 memset( str, ' ', sizeof( str ) );
940 for( unsigned i = 1; i < i_level; i++ )
944 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_RIFF ||
945 p_chk->common.i_chunk_fourcc == AVIFOURCC_ON2 ||
946 p_chk->common.i_chunk_fourcc == AVIFOURCC_LIST )
948 snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
949 "%c %4.4s-%4.4s size:%"PRIu64" pos:%"PRIu64,
951 (char*)&p_chk->common.i_chunk_fourcc,
952 (char*)&p_chk->list.i_type,
953 p_chk->common.i_chunk_size,
954 p_chk->common.i_chunk_pos );
958 snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
959 "+ %4.4s size:%"PRIu64" pos:%"PRIu64,
960 (char*)&p_chk->common.i_chunk_fourcc,
961 p_chk->common.i_chunk_size,
962 p_chk->common.i_chunk_pos );
964 msg_Dbg( p_obj, "%s", str );
966 p_child = p_chk->common.p_first;
969 AVI_ChunkDumpDebug_level( p_obj, p_child, i_level + 1 );
970 p_child = p_child->common.p_next;
974 int AVI_ChunkReadRoot( stream_t *s, avi_chunk_t *p_root )
976 avi_chunk_list_t *p_list = (avi_chunk_list_t*)p_root;
980 stream_Control( s, STREAM_CAN_FASTSEEK, &b_seekable );
982 p_list->i_chunk_pos = 0;
983 p_list->i_chunk_size = stream_Size( s );
984 p_list->i_chunk_fourcc = AVIFOURCC_LIST;
985 p_list->p_father = NULL;
986 p_list->p_next = NULL;
987 p_list->p_first = NULL;
988 p_list->p_last = NULL;
990 p_list->i_type = VLC_FOURCC( 'r', 'o', 'o', 't' );
994 p_chk = xmalloc( sizeof( avi_chunk_t ) );
995 memset( p_chk, 0, sizeof( avi_chunk_t ) );
996 if( !p_root->common.p_first )
998 p_root->common.p_first = p_chk;
1002 p_root->common.p_last->common.p_next = p_chk;
1004 p_root->common.p_last = p_chk;
1006 if( AVI_ChunkRead( s, p_chk, p_root ) ||
1007 ( stream_Tell( s ) >=
1008 (off_t)p_chk->common.p_father->common.i_chunk_pos +
1009 (off_t)__EVEN( p_chk->common.p_father->common.i_chunk_size ) ) )
1013 /* If we can't seek then stop when we 've found first RIFF-AVI */
1014 if( p_chk->common.i_chunk_fourcc == AVIFOURCC_RIFF &&
1015 p_chk->list.i_type == AVIFOURCC_AVI && !b_seekable )
1021 AVI_ChunkDumpDebug_level( (vlc_object_t*)s, p_root, 0 );
1025 void AVI_ChunkFreeRoot( stream_t *s,
1026 avi_chunk_t *p_chk )
1028 AVI_ChunkFree( s, p_chk );
1032 int _AVI_ChunkCount( avi_chunk_t *p_chk, vlc_fourcc_t i_fourcc )
1035 avi_chunk_t *p_child;
1043 p_child = p_chk->common.p_first;
1046 if( p_child->common.i_chunk_fourcc == i_fourcc ||
1047 ( p_child->common.i_chunk_fourcc == AVIFOURCC_LIST &&
1048 p_child->list.i_type == i_fourcc ) )
1052 p_child = p_child->common.p_next;
1057 void *_AVI_ChunkFind( avi_chunk_t *p_chk,
1058 vlc_fourcc_t i_fourcc, int i_number )
1060 avi_chunk_t *p_child;
1065 p_child = p_chk->common.p_first;
1069 if( p_child->common.i_chunk_fourcc == i_fourcc ||
1070 ( p_child->common.i_chunk_fourcc == AVIFOURCC_LIST &&
1071 p_child->list.i_type == i_fourcc ) )
1081 p_child = p_child->common.p_next;