1 /*****************************************************************************
2 * libmp4.c : LibMP4 library for mp4 module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 VideoLAN
7 * Author: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
23 #include <stdlib.h> /* malloc(), free() */
26 #include <vlc/input.h>
29 # include <zlib.h> /* for compressed moov */
35 /*****************************************************************************
36 * Here are defined some macro to make life simpler but before using it
39 *****************************************************************************/
40 #define MP4_BOX_HEADERSIZE( p_box ) \
41 ( 8 + ( p_box->i_shortsize == 1 ? 8 : 0 ) \
42 + ( p_box->i_type == FOURCC_uuid ? 16 : 0 ) )
44 #define MP4_GET1BYTE( dst ) \
45 dst = *p_peek; p_peek++; i_read--
47 #define MP4_GET2BYTES( dst ) \
48 dst = GetWBE( p_peek ); p_peek += 2; i_read -= 2
50 #define MP4_GET3BYTES( dst ) \
51 dst = Get24bBE( p_peek ); p_peek += 3; i_read -= 3
53 #define MP4_GET4BYTES( dst ) \
54 dst = GetDWBE( p_peek ); p_peek += 4; i_read -= 4
56 #define MP4_GETFOURCC( dst ) \
57 dst = VLC_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] ); \
58 p_peek += 4; i_read -= 4
60 #define MP4_GET8BYTES( dst ) \
61 dst = GetQWBE( p_peek ); p_peek += 8; i_read -= 8
63 #define MP4_GETVERSIONFLAGS( p_void ) \
64 MP4_GET1BYTE( p_void->i_version ); \
65 MP4_GET3BYTES( p_void->i_flags )
67 #define MP4_GETSTRINGZ( p_str ) \
68 if( ( i_read > 0 )&&(p_peek[0] ) ) \
70 p_str = calloc( sizeof( char ), __MIN( strlen( p_peek ), i_read )+1);\
71 memcpy( p_str, p_peek, __MIN( strlen( p_peek ), i_read ) ); \
72 p_str[__MIN( strlen( p_peek ), i_read )] = 0; \
73 p_peek += strlen( p_str ) + 1; \
74 i_read -= strlen( p_str ) + 1; \
82 #define MP4_READBOX_ENTER( MP4_Box_data_TYPE_t ) \
83 int64_t i_read = p_box->i_size; \
84 uint8_t *p_peek, *p_buff; \
85 i_read = p_box->i_size; \
86 if( !( p_peek = p_buff = malloc( i_read ) ) ) \
90 if( MP4_ReadStream( p_stream, p_peek, i_read ) )\
95 p_peek += MP4_BOX_HEADERSIZE( p_box ); \
96 i_read -= MP4_BOX_HEADERSIZE( p_box ); \
97 if( !( p_box->data.p_data = malloc( sizeof( MP4_Box_data_TYPE_t ) ) ) ) \
103 #define MP4_READBOX_EXIT( i_code ) \
107 msg_Warn( p_stream->s, "Not enough data" ); \
112 if( p ) {free( p ); p = NULL; }
117 * The input method HAVE to be seekable
121 static uint32_t Get24bBE( uint8_t *p )
123 return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
126 static void GetUUID( UUID_t *p_uuid, uint8_t *p_buff )
128 memcpy( p_uuid, p_buff, 16 );
131 static void CreateUUID( UUID_t *p_uuid, uint32_t i_fourcc )
133 /* made by 0xXXXXXXXX-0011-0010-8000-00aa00389b71
134 where XXXXXXXX is the fourcc */
135 /* FIXME implement this */
138 /* some functions for mp4 encoding of variables */
140 static void MP4_ConvertDate2Str( char *psz, uint64_t i_date )
147 /* date begin at 1 jan 1904 */
148 i_date += ((I64C(1904) * 365) + 17) * 24 * 60 * 60;
150 i_day = i_date / ( 60*60*24);
151 i_hour = ( i_date /( 60*60 ) ) % 60;
152 i_min = ( i_date / 60 ) % 60;
154 sprintf( psz, "%dd-%2.2dh:%2.2dm:%2.2ds",
155 i_day, i_hour, i_min, i_sec );
158 /*****************************************************************************
160 *****************************************************************************/
161 static MP4_Box_t *MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_father );
163 /*****************************************************************************
164 * Some basic functions to manipulate MP4_Stream_t, an abstraction of stream_t
165 * in the way that you can read from a memory buffer or from an input
167 *****************************************************************************/
169 /**** ------- First some function to make abstract from input -------- */
171 /****************************************************************************
172 * MP4_InputStream create an stram with an input
174 ****************************************************************************/
175 MP4_Stream_t *MP4_InputStream( stream_t *s )
177 MP4_Stream_t *p_stream;
179 if( !( p_stream = malloc( sizeof( MP4_Stream_t ) ) ) )
183 p_stream->b_memory = 0;
185 p_stream->i_start = 0;
186 p_stream->i_stop = 0;
187 p_stream->p_buffer = NULL;
192 /****************************************************************************
193 * MP4_MemoryStream create a memory stream
194 * if p_buffer == NULL, will allocate a buffer of i_size, else
195 * it uses p_buffer XXX you have to unallocate it yourself !
197 ****************************************************************************/
198 MP4_Stream_t *MP4_MemoryStream( stream_t *s,
199 int i_size, uint8_t *p_buffer )
201 MP4_Stream_t *p_stream;
203 if( !( p_stream = malloc( sizeof( MP4_Stream_t ) ) ) )
207 p_stream->b_memory = 1;
209 p_stream->i_start = 0;
210 p_stream->i_stop = i_size;
213 if( !( p_stream->p_buffer = malloc( i_size ) ) )
221 p_stream->p_buffer = p_buffer;
226 /****************************************************************************
227 * MP4_ReadStream read from a MP4_Stream_t
229 ****************************************************************************/
230 int MP4_ReadStream( MP4_Stream_t *p_stream, uint8_t *p_buff, int i_size )
232 if( p_stream->b_memory )
234 if( i_size > p_stream->i_stop - p_stream->i_start )
236 return( VLC_EGENERIC );
239 p_stream->p_buffer + p_stream->i_start,
241 p_stream->i_start += i_size;
242 return( VLC_SUCCESS );
246 return( stream_Read( p_stream->s, p_buff, i_size ) < i_size ? VLC_EGENERIC : VLC_SUCCESS);
250 /****************************************************************************
251 * MP4_PeekStream peek from a MP4_Stream_t
253 ****************************************************************************/
254 int MP4_PeekStream( MP4_Stream_t *p_stream, uint8_t **pp_peek, int i_size )
256 if( p_stream->b_memory )
258 *pp_peek = p_stream->p_buffer + p_stream->i_start;
260 return( __MIN(i_size,p_stream->i_stop - p_stream->i_start ));
265 if( stream_Size( p_stream->s ) > 0 )
267 int64_t i_max = stream_Size( p_stream->s ) - stream_Tell( p_stream->s );
273 return( stream_Peek( p_stream->s, pp_peek, i_size ) );
277 /****************************************************************************
278 * MP4_TellStream give absolute position in the stream
279 * XXX for a memory stream give position from begining of the buffer
280 ****************************************************************************/
281 off_t MP4_TellStream( MP4_Stream_t *p_stream )
283 if( p_stream->b_memory )
285 return( p_stream->i_start );
289 return( stream_Tell( p_stream->s ) );
293 /****************************************************************************
294 * MP4_SeekStream seek in a MP4_Stream_t
296 ****************************************************************************/
297 int MP4_SeekStream( MP4_Stream_t *p_stream, off_t i_pos)
299 if( p_stream->b_memory )
301 if( i_pos < p_stream->i_stop )
303 p_stream->i_start = i_pos;
304 return( VLC_SUCCESS );
308 return( VLC_EGENERIC );
313 return( stream_Seek( p_stream->s, (int64_t)i_pos ) );
319 /*****************************************************************************
320 * MP4_ReadBoxCommon : Load only common parameters for all boxes
321 *****************************************************************************
322 * p_box need to be an already allocated MP4_Box_t, and all data
323 * will only be peek not read
325 * RETURN : 0 if it fail, 1 otherwise
326 *****************************************************************************/
327 int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
332 if( ( ( i_read = MP4_PeekStream( p_stream, &p_peek, 32 ) ) < 8 ) )
336 p_box->i_pos = MP4_TellStream( p_stream );
338 p_box->data.p_data = NULL;
339 p_box->p_father = NULL;
340 p_box->p_first = NULL;
341 p_box->p_last = NULL;
342 p_box->p_next = NULL;
344 MP4_GET4BYTES( p_box->i_shortsize );
345 MP4_GETFOURCC( p_box->i_type );
347 /* Now special case */
349 if( p_box->i_shortsize == 1 )
351 /* get the true size on 64 bits */
352 MP4_GET8BYTES( p_box->i_size );
356 p_box->i_size = p_box->i_shortsize;
357 /* XXX size of 0 means that the box extends to end of file */
360 if( p_box->i_type == FOURCC_uuid )
362 /* get extented type on 16 bytes */
363 GetUUID( &p_box->i_uuid, p_peek );
364 p_peek += 16; i_read -= 16;
368 CreateUUID( &p_box->i_uuid, p_box->i_type );
373 msg_Dbg( p_stream->s, "found Box: %4.4s size "I64Fd,
374 (char*)&p_box->i_type,
383 /*****************************************************************************
384 * MP4_NextBox : Go to the next box
385 *****************************************************************************
386 * if p_box == NULL, go to the next box in witch we are( at the begining ).
387 *****************************************************************************/
388 static int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
394 MP4_ReadBoxCommon( p_stream, &box );
400 return( 2 ); /* Box with infinite size */
403 if( p_box->p_father )
405 /* check if it's within p-father */
406 if( p_box->i_size + p_box->i_pos >=
407 p_box->p_father->i_size + p_box->p_father->i_pos )
409 return( 0 ); /* out of bound */
412 if( MP4_SeekStream( p_stream, p_box->i_size + p_box->i_pos ) )
420 /*****************************************************************************
421 * For all known box a loader is given,
422 * XXX: all common struct have to be already read by MP4_ReadBoxCommon
423 * after called one of theses functions, file position is unknown
424 * you need to call MP4_GotoBox to go where you want
425 *****************************************************************************/
426 static int MP4_ReadBoxContainerRaw( MP4_Stream_t *p_stream, MP4_Box_t *p_container )
430 if( MP4_TellStream( p_stream ) + 8 >
431 (off_t)(p_container->i_pos + p_container->i_size) )
433 /* there is no box to load */
439 if( ( p_box = MP4_ReadBox( p_stream, p_container ) ) == NULL )
443 /* chain this box with the father and the other at same level */
444 if( !p_container->p_first )
446 p_container->p_first = p_box;
450 p_container->p_last->p_next = p_box;
452 p_container->p_last = p_box;
453 } while( MP4_NextBox( p_stream, p_box ) == 1 );
459 static int MP4_ReadBoxContainer( MP4_Stream_t *p_stream, MP4_Box_t *p_container )
461 if( p_container->i_size <= (size_t)MP4_BOX_HEADERSIZE(p_container ) + 8 )
463 /* container is empty, 8 stand for the first header in this box */
468 MP4_SeekStream( p_stream, p_container->i_pos + MP4_BOX_HEADERSIZE( p_container ) );
470 return( MP4_ReadBoxContainerRaw( p_stream, p_container ) );
473 static void MP4_FreeBox_Common( MP4_Box_t *p_box )
475 /* Up to now do nothing */
478 static int MP4_ReadBoxSkip( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
480 /* XXX sometime moov is hiden in a free box */
481 if( p_box->p_father && p_box->p_father->i_type == VLC_FOURCC( 'r', 'o', 'o', 't' )&&
482 p_box->i_type == FOURCC_free )
488 i_read = MP4_PeekStream( p_stream, &p_peek, 44 );
490 p_peek += MP4_BOX_HEADERSIZE( p_box ) + 4;
491 i_read -= MP4_BOX_HEADERSIZE( p_box ) + 4;
495 i_fcc = VLC_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] );
497 if( i_fcc == FOURCC_cmov || i_fcc == FOURCC_mvhd )
499 msg_Warn( p_stream->s, "detected moov hidden in a free box ..." );
501 p_box->i_type = FOURCC_foov;
502 return MP4_ReadBoxContainer( p_stream, p_box );
508 msg_Dbg( p_stream->s, "skip box: \"%4.4s\"",
509 (char*)&p_box->i_type );
514 static int MP4_ReadBox_ftyp( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
516 MP4_READBOX_ENTER( MP4_Box_data_ftyp_t );
518 MP4_GETFOURCC( p_box->data.p_ftyp->i_major_brand );
519 MP4_GET4BYTES( p_box->data.p_ftyp->i_minor_version );
521 if( ( p_box->data.p_ftyp->i_compatible_brands_count = i_read / 4 ) )
524 p_box->data.p_ftyp->i_compatible_brands =
525 calloc( p_box->data.p_ftyp->i_compatible_brands_count, sizeof(uint32_t));
527 for( i =0; i < p_box->data.p_ftyp->i_compatible_brands_count; i++ )
529 MP4_GETFOURCC( p_box->data.p_ftyp->i_compatible_brands[i] );
534 p_box->data.p_ftyp->i_compatible_brands = NULL;
537 MP4_READBOX_EXIT( 1 );
540 static void MP4_FreeBox_ftyp( MP4_Box_t *p_box )
542 FREE( p_box->data.p_ftyp->i_compatible_brands );
546 static int MP4_ReadBox_mvhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
550 char s_creation_time[128];
551 char s_modification_time[128];
552 char s_duration[128];
554 MP4_READBOX_ENTER( MP4_Box_data_mvhd_t );
556 MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );
558 if( p_box->data.p_mvhd->i_version )
560 MP4_GET8BYTES( p_box->data.p_mvhd->i_creation_time );
561 MP4_GET8BYTES( p_box->data.p_mvhd->i_modification_time );
562 MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
563 MP4_GET8BYTES( p_box->data.p_mvhd->i_duration );
567 MP4_GET4BYTES( p_box->data.p_mvhd->i_creation_time );
568 MP4_GET4BYTES( p_box->data.p_mvhd->i_modification_time );
569 MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
570 MP4_GET4BYTES( p_box->data.p_mvhd->i_duration );
572 MP4_GET4BYTES( p_box->data.p_mvhd->i_rate );
573 MP4_GET2BYTES( p_box->data.p_mvhd->i_volume );
574 MP4_GET2BYTES( p_box->data.p_mvhd->i_reserved1 );
577 for( i = 0; i < 2; i++ )
579 MP4_GET4BYTES( p_box->data.p_mvhd->i_reserved2[i] );
581 for( i = 0; i < 9; i++ )
583 MP4_GET4BYTES( p_box->data.p_mvhd->i_matrix[i] );
585 for( i = 0; i < 6; i++ )
587 MP4_GET4BYTES( p_box->data.p_mvhd->i_predefined[i] );
590 MP4_GET4BYTES( p_box->data.p_mvhd->i_next_track_id );
594 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time );
595 MP4_ConvertDate2Str( s_modification_time,
596 p_box->data.p_mvhd->i_modification_time );
597 if( p_box->data.p_mvhd->i_rate )
599 MP4_ConvertDate2Str( s_duration,
600 p_box->data.p_mvhd->i_duration / p_box->data.p_mvhd->i_rate );
606 msg_Dbg( p_stream->s, "read box: \"mvhd\" creation %s modification %s time scale %d duration %s rate %f volume %f next track id %d",
609 (uint32_t)p_box->data.p_mvhd->i_timescale,
611 (float)p_box->data.p_mvhd->i_rate / (1<<16 ),
612 (float)p_box->data.p_mvhd->i_volume / 256 ,
613 (uint32_t)p_box->data.p_mvhd->i_next_track_id );
615 MP4_READBOX_EXIT( 1 );
618 static int MP4_ReadBox_tkhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
622 char s_creation_time[128];
623 char s_modification_time[128];
624 char s_duration[128];
626 MP4_READBOX_ENTER( MP4_Box_data_tkhd_t );
628 MP4_GETVERSIONFLAGS( p_box->data.p_tkhd );
630 if( p_box->data.p_tkhd->i_version )
632 MP4_GET8BYTES( p_box->data.p_tkhd->i_creation_time );
633 MP4_GET8BYTES( p_box->data.p_tkhd->i_modification_time );
634 MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
635 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
636 MP4_GET8BYTES( p_box->data.p_tkhd->i_duration );
640 MP4_GET4BYTES( p_box->data.p_tkhd->i_creation_time );
641 MP4_GET4BYTES( p_box->data.p_tkhd->i_modification_time );
642 MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
643 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
644 MP4_GET4BYTES( p_box->data.p_tkhd->i_duration );
647 for( i = 0; i < 2; i++ )
649 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved2[i] );
651 MP4_GET2BYTES( p_box->data.p_tkhd->i_layer );
652 MP4_GET2BYTES( p_box->data.p_tkhd->i_predefined );
653 MP4_GET2BYTES( p_box->data.p_tkhd->i_volume );
654 MP4_GET2BYTES( p_box->data.p_tkhd->i_reserved3 );
656 for( i = 0; i < 9; i++ )
658 MP4_GET4BYTES( p_box->data.p_tkhd->i_matrix[i] );
660 MP4_GET4BYTES( p_box->data.p_tkhd->i_width );
661 MP4_GET4BYTES( p_box->data.p_tkhd->i_height );
664 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time );
665 MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mvhd->i_modification_time );
666 MP4_ConvertDate2Str( s_duration, p_box->data.p_mvhd->i_duration );
668 msg_Dbg( p_stream->s, "read box: \"tkhd\" creation %s modification %s duration %s track ID %d layer %d volume %f width %f height %f",
672 p_box->data.p_tkhd->i_track_ID,
673 p_box->data.p_tkhd->i_layer,
674 (float)p_box->data.p_tkhd->i_volume / 256 ,
675 (float)p_box->data.p_tkhd->i_width / 65536,
676 (float)p_box->data.p_tkhd->i_height / 65536 );
678 MP4_READBOX_EXIT( 1 );
682 static int MP4_ReadBox_mdhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
687 char s_creation_time[128];
688 char s_modification_time[128];
689 char s_duration[128];
691 MP4_READBOX_ENTER( MP4_Box_data_mdhd_t );
693 MP4_GETVERSIONFLAGS( p_box->data.p_mdhd );
695 if( p_box->data.p_mdhd->i_version )
697 MP4_GET8BYTES( p_box->data.p_mdhd->i_creation_time );
698 MP4_GET8BYTES( p_box->data.p_mdhd->i_modification_time );
699 MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
700 MP4_GET8BYTES( p_box->data.p_mdhd->i_duration );
704 MP4_GET4BYTES( p_box->data.p_mdhd->i_creation_time );
705 MP4_GET4BYTES( p_box->data.p_mdhd->i_modification_time );
706 MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
707 MP4_GET4BYTES( p_box->data.p_mdhd->i_duration );
709 i_language = GetWBE( p_peek );
710 for( i = 0; i < 3; i++ )
712 p_box->data.p_mdhd->i_language[i] =
713 ( ( i_language >> ( (2-i)*5 ) )&0x1f ) + 0x60;
716 MP4_GET2BYTES( p_box->data.p_mdhd->i_predefined );
719 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mdhd->i_creation_time );
720 MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mdhd->i_modification_time );
721 MP4_ConvertDate2Str( s_duration, p_box->data.p_mdhd->i_duration );
722 msg_Dbg( p_stream->s, "read box: \"mdhd\" creation %s modification %s time scale %d duration %s language %c%c%c",
725 (uint32_t)p_box->data.p_mdhd->i_timescale,
727 p_box->data.p_mdhd->i_language[0],
728 p_box->data.p_mdhd->i_language[1],
729 p_box->data.p_mdhd->i_language[2] );
731 MP4_READBOX_EXIT( 1 );
735 static int MP4_ReadBox_hdlr( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
739 MP4_READBOX_ENTER( MP4_Box_data_hdlr_t );
741 MP4_GETVERSIONFLAGS( p_box->data.p_hdlr );
743 MP4_GETFOURCC( p_box->data.p_hdlr->i_predefined );
744 MP4_GETFOURCC( p_box->data.p_hdlr->i_handler_type );
746 MP4_GET4BYTES( i_reserved );
747 MP4_GET4BYTES( i_reserved );
748 MP4_GET4BYTES( i_reserved );
750 p_box->data.p_hdlr->psz_name = calloc( sizeof( char ), i_read + 1 );
752 /* Yes, I love .mp4 :( */
753 if( p_box->data.p_hdlr->i_predefined == VLC_FOURCC( 'm', 'h', 'l', 'r' ) )
758 MP4_GET1BYTE( i_len );
759 i_copy = __MIN( i_read, i_len );
761 memcpy( p_box->data.p_hdlr->psz_name, p_peek, i_copy );
762 p_box->data.p_hdlr->psz_name[i_copy] = '\0';
766 memcpy( p_box->data.p_hdlr->psz_name, p_peek, i_read );
767 p_box->data.p_hdlr->psz_name[i_read] = '\0';
772 msg_Dbg( p_stream->s, "read box: \"hdlr\" hanler type %4.4s name %s",
773 (char*)&p_box->data.p_hdlr->i_handler_type,
774 p_box->data.p_hdlr->psz_name );
777 MP4_READBOX_EXIT( 1 );
780 static void MP4_FreeBox_hdlr( MP4_Box_t *p_box )
782 FREE( p_box->data.p_hdlr->psz_name );
785 static int MP4_ReadBox_vmhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
789 MP4_READBOX_ENTER( MP4_Box_data_vmhd_t );
791 MP4_GETVERSIONFLAGS( p_box->data.p_vmhd );
793 MP4_GET2BYTES( p_box->data.p_vmhd->i_graphics_mode );
794 for( i = 0; i < 3; i++ )
796 MP4_GET2BYTES( p_box->data.p_vmhd->i_opcolor[i] );
800 msg_Dbg( p_stream->s, "read box: \"vmhd\" graphics-mode %d opcolor (%d, %d, %d)",
801 p_box->data.p_vmhd->i_graphics_mode,
802 p_box->data.p_vmhd->i_opcolor[0],
803 p_box->data.p_vmhd->i_opcolor[1],
804 p_box->data.p_vmhd->i_opcolor[2] );
806 MP4_READBOX_EXIT( 1 );
809 static int MP4_ReadBox_smhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
811 MP4_READBOX_ENTER( MP4_Box_data_smhd_t );
813 MP4_GETVERSIONFLAGS( p_box->data.p_smhd );
817 MP4_GET2BYTES( p_box->data.p_smhd->i_balance );
819 MP4_GET2BYTES( p_box->data.p_smhd->i_reserved );
822 msg_Dbg( p_stream->s, "read box: \"smhd\" balance %f",
823 (float)p_box->data.p_smhd->i_balance / 256 );
825 MP4_READBOX_EXIT( 1 );
829 static int MP4_ReadBox_hmhd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
831 MP4_READBOX_ENTER( MP4_Box_data_hmhd_t );
833 MP4_GETVERSIONFLAGS( p_box->data.p_hmhd );
835 MP4_GET2BYTES( p_box->data.p_hmhd->i_max_PDU_size );
836 MP4_GET2BYTES( p_box->data.p_hmhd->i_avg_PDU_size );
838 MP4_GET4BYTES( p_box->data.p_hmhd->i_max_bitrate );
839 MP4_GET4BYTES( p_box->data.p_hmhd->i_avg_bitrate );
841 MP4_GET4BYTES( p_box->data.p_hmhd->i_reserved );
844 msg_Dbg( p_stream->s, "read box: \"hmhd\" maxPDU-size %d avgPDU-size %d max-bitrate %d avg-bitrate %d",
845 p_box->data.p_hmhd->i_max_PDU_size,
846 p_box->data.p_hmhd->i_avg_PDU_size,
847 p_box->data.p_hmhd->i_max_bitrate,
848 p_box->data.p_hmhd->i_avg_bitrate );
850 MP4_READBOX_EXIT( 1 );
853 static int MP4_ReadBox_url( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
855 MP4_READBOX_ENTER( MP4_Box_data_url_t );
857 MP4_GETVERSIONFLAGS( p_box->data.p_url );
858 MP4_GETSTRINGZ( p_box->data.p_url->psz_location );
861 msg_Dbg( p_stream->s, "read box: \"url\" url: %s",
862 p_box->data.p_url->psz_location );
865 MP4_READBOX_EXIT( 1 );
869 static void MP4_FreeBox_url( MP4_Box_t *p_box )
871 FREE( p_box->data.p_url->psz_location )
874 static int MP4_ReadBox_urn( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
876 MP4_READBOX_ENTER( MP4_Box_data_urn_t );
878 MP4_GETVERSIONFLAGS( p_box->data.p_urn );
880 MP4_GETSTRINGZ( p_box->data.p_urn->psz_name );
881 MP4_GETSTRINGZ( p_box->data.p_urn->psz_location );
884 msg_Dbg( p_stream->s, "read box: \"urn\" name %s location %s",
885 p_box->data.p_urn->psz_name,
886 p_box->data.p_urn->psz_location );
888 MP4_READBOX_EXIT( 1 );
890 static void MP4_FreeBox_urn( MP4_Box_t *p_box )
892 FREE( p_box->data.p_urn->psz_name );
893 FREE( p_box->data.p_urn->psz_location );
897 static int MP4_ReadBox_dref( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
899 MP4_READBOX_ENTER( MP4_Box_data_dref_t );
901 MP4_GETVERSIONFLAGS( p_box->data.p_dref );
903 MP4_GET4BYTES( p_box->data.p_dref->i_entry_count );
905 MP4_SeekStream( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
906 MP4_ReadBoxContainerRaw( p_stream, p_box );
909 msg_Dbg( p_stream->s, "read box: \"dref\" entry-count %d",
910 p_box->data.p_dref->i_entry_count );
913 MP4_READBOX_EXIT( 1 );
917 static int MP4_ReadBox_stts( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
920 MP4_READBOX_ENTER( MP4_Box_data_stts_t );
922 MP4_GETVERSIONFLAGS( p_box->data.p_stts );
923 MP4_GET4BYTES( p_box->data.p_stts->i_entry_count );
925 p_box->data.p_stts->i_sample_count =
926 calloc( sizeof( uint32_t ), p_box->data.p_stts->i_entry_count );
927 p_box->data.p_stts->i_sample_delta =
928 calloc( sizeof( uint32_t ), p_box->data.p_stts->i_entry_count );
930 for( i = 0; (i < p_box->data.p_stts->i_entry_count )&&( i_read >=8 ); i++ )
932 MP4_GET4BYTES( p_box->data.p_stts->i_sample_count[i] );
933 MP4_GET4BYTES( p_box->data.p_stts->i_sample_delta[i] );
937 msg_Dbg( p_stream->s, "read box: \"stts\" entry-count %d",
938 p_box->data.p_stts->i_entry_count );
941 MP4_READBOX_EXIT( 1 );
944 static void MP4_FreeBox_stts( MP4_Box_t *p_box )
946 FREE( p_box->data.p_stts->i_sample_count );
947 FREE( p_box->data.p_stts->i_sample_delta );
950 static int MP4_ReadBox_ctts( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
953 MP4_READBOX_ENTER( MP4_Box_data_ctts_t );
955 MP4_GETVERSIONFLAGS( p_box->data.p_ctts );
957 MP4_GET4BYTES( p_box->data.p_ctts->i_entry_count );
959 p_box->data.p_ctts->i_sample_count =
960 calloc( sizeof( uint32_t ), p_box->data.p_ctts->i_entry_count );
961 p_box->data.p_ctts->i_sample_offset =
962 calloc( sizeof( uint32_t ), p_box->data.p_ctts->i_entry_count );
964 for( i = 0; (i < p_box->data.p_ctts->i_entry_count )&&( i_read >=8 ); i++ )
966 MP4_GET4BYTES( p_box->data.p_ctts->i_sample_count[i] );
967 MP4_GET4BYTES( p_box->data.p_ctts->i_sample_offset[i] );
971 msg_Dbg( p_stream->s, "read box: \"ctts\" entry-count %d",
972 p_box->data.p_ctts->i_entry_count );
975 MP4_READBOX_EXIT( 1 );
978 static void MP4_FreeBox_ctts( MP4_Box_t *p_box )
980 FREE( p_box->data.p_ctts->i_sample_count );
981 FREE( p_box->data.p_ctts->i_sample_offset );
984 static int MP4_ReadLengthDescriptor( uint8_t **pp_peek, int64_t *i_read )
987 unsigned int i_len = 0;
994 i_len = ( i_len << 7 ) + ( i_b&0x7f );
999 static int MP4_ReadBox_esds( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1001 #define es_descriptor p_box->data.p_esds->es_descriptor
1003 unsigned int i_flags;
1004 unsigned int i_type;
1006 MP4_READBOX_ENTER( MP4_Box_data_esds_t );
1008 MP4_GETVERSIONFLAGS( p_box->data.p_esds );
1011 MP4_GET1BYTE( i_type );
1012 if( i_type == 0x03 ) /* MP4ESDescrTag */
1014 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
1017 msg_Dbg( p_stream->s, "found esds MPEG4ESDescr (%dBytes)",
1021 MP4_GET2BYTES( es_descriptor.i_ES_ID );
1022 MP4_GET1BYTE( i_flags );
1023 es_descriptor.b_stream_dependence = ( (i_flags&0x80) != 0);
1024 es_descriptor.b_url = ( (i_flags&0x40) != 0);
1025 es_descriptor.b_OCRstream = ( (i_flags&0x20) != 0);
1027 es_descriptor.i_stream_priority = i_flags&0x1f;
1028 if( es_descriptor.b_stream_dependence )
1030 MP4_GET2BYTES( es_descriptor.i_depend_on_ES_ID );
1032 if( es_descriptor.b_url )
1036 MP4_GET1BYTE( i_len );
1037 es_descriptor.psz_URL = calloc( sizeof(char), i_len + 1 );
1038 memcpy( es_descriptor.psz_URL, p_peek, i_len );
1039 es_descriptor.psz_URL[i_len] = 0;
1045 es_descriptor.psz_URL = NULL;
1047 if( es_descriptor.b_OCRstream )
1049 MP4_GET2BYTES( es_descriptor.i_OCR_ES_ID );
1051 MP4_GET1BYTE( i_type ); /* get next type */
1054 if( i_type != 0x04)/* MP4DecConfigDescrTag */
1056 es_descriptor.p_decConfigDescr = NULL;
1057 MP4_READBOX_EXIT( 1 ); /* rest isn't interesting up to now */
1060 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
1063 msg_Dbg( p_stream->s, "found esds MP4DecConfigDescr (%dBytes)",
1067 es_descriptor.p_decConfigDescr =
1068 malloc( sizeof( MP4_descriptor_decoder_config_t ));
1070 MP4_GET1BYTE( es_descriptor.p_decConfigDescr->i_objectTypeIndication );
1071 MP4_GET1BYTE( i_flags );
1072 es_descriptor.p_decConfigDescr->i_streamType = i_flags >> 2;
1073 es_descriptor.p_decConfigDescr->b_upStream = ( i_flags >> 1 )&0x01;
1074 MP4_GET3BYTES( es_descriptor.p_decConfigDescr->i_buffer_sizeDB );
1075 MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_max_bitrate );
1076 MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_avg_bitrate );
1077 MP4_GET1BYTE( i_type );
1078 if( i_type != 0x05 )/* MP4DecSpecificDescrTag */
1080 es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = 0;
1081 es_descriptor.p_decConfigDescr->p_decoder_specific_info = NULL;
1082 MP4_READBOX_EXIT( 1 );
1085 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
1088 msg_Dbg( p_stream->s, "found esds MP4DecSpecificDescr (%dBytes)",
1092 es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = i_len;
1093 es_descriptor.p_decConfigDescr->p_decoder_specific_info = malloc( i_len );
1094 memcpy( es_descriptor.p_decConfigDescr->p_decoder_specific_info,
1097 MP4_READBOX_EXIT( 1 );
1099 #undef es_descriptor
1102 static void MP4_FreeBox_esds( MP4_Box_t *p_box )
1104 FREE( p_box->data.p_esds->es_descriptor.psz_URL );
1105 if( p_box->data.p_esds->es_descriptor.p_decConfigDescr )
1107 FREE( p_box->data.p_esds->es_descriptor.p_decConfigDescr->p_decoder_specific_info );
1109 FREE( p_box->data.p_esds->es_descriptor.p_decConfigDescr );
1112 static int MP4_ReadBox_avcC( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1114 MP4_Box_data_avcC_t *p_avcC;
1117 MP4_READBOX_ENTER( MP4_Box_data_avcC_t );
1118 p_avcC = p_box->data.p_avcC;
1120 p_avcC->i_avcC = i_read;
1121 p_avcC->p_avcC = malloc( p_avcC->i_avcC );
1122 memcpy( p_avcC->p_avcC, p_peek, i_read );
1124 MP4_GET1BYTE( p_avcC->i_version );
1125 MP4_GET1BYTE( p_avcC->i_profile );
1126 MP4_GET1BYTE( p_avcC->i_profile_compatibility );
1127 MP4_GET1BYTE( p_avcC->i_level );
1128 MP4_GET1BYTE( p_avcC->i_reserved1 );
1129 p_avcC->i_length_size = (p_avcC->i_reserved1&0x03) + 1;
1130 p_avcC->i_reserved1 >>= 2;
1132 MP4_GET1BYTE( p_avcC->i_reserved2 );
1133 p_avcC->i_sps = p_avcC->i_reserved2&0x1f;
1134 p_avcC->i_reserved2 >>= 5;
1136 if( p_avcC->i_sps > 0 )
1138 p_avcC->i_sps_length = malloc( p_avcC->i_sps * sizeof( uint16_t ) );
1139 p_avcC->sps = malloc( p_avcC->i_sps * sizeof( uint8_t* ) );
1141 for( i = 0; i < p_avcC->i_sps; i++ )
1143 MP4_GET2BYTES( p_avcC->i_sps_length[i] );
1144 p_avcC->sps[i] = malloc( p_avcC->i_sps_length[i] );
1145 memcpy( p_avcC->sps[i], p_peek, p_avcC->i_sps_length[i] );
1147 p_peek += p_avcC->i_sps_length[i];
1148 i_read -= p_avcC->i_sps_length[i];
1152 MP4_GET1BYTE( p_avcC->i_pps );
1153 if( p_avcC->i_pps > 0 )
1155 p_avcC->i_pps_length = malloc( p_avcC->i_pps * sizeof( uint16_t ) );
1156 p_avcC->pps = malloc( p_avcC->i_pps * sizeof( uint8_t* ) );
1158 for( i = 0; i < p_avcC->i_pps; i++ )
1160 MP4_GET2BYTES( p_avcC->i_pps_length[i] );
1161 p_avcC->pps[i] = malloc( p_avcC->i_pps_length[i] );
1162 memcpy( p_avcC->pps[i], p_peek, p_avcC->i_pps_length[i] );
1164 p_peek += p_avcC->i_pps_length[i];
1165 i_read -= p_avcC->i_pps_length[i];
1169 msg_Dbg( p_stream->s,
1170 "read box: \"avcC\" version=%d profile=0x%x level=0x%x lengh size=%d sps=%d pps=%d",
1171 p_avcC->i_version, p_avcC->i_profile, p_avcC->i_level,
1172 p_avcC->i_length_size,
1173 p_avcC->i_sps, p_avcC->i_pps );
1174 for( i = 0; i < p_avcC->i_sps; i++ )
1176 msg_Dbg( p_stream->s, " - sps[%d] length=%d",
1177 i, p_avcC->i_sps_length[i] );
1179 for( i = 0; i < p_avcC->i_pps; i++ )
1181 msg_Dbg( p_stream->s, " - pps[%d] length=%d",
1182 i, p_avcC->i_pps_length[i] );
1186 MP4_READBOX_EXIT( 1 );
1189 static void MP4_FreeBox_avcC( MP4_Box_t *p_box )
1191 MP4_Box_data_avcC_t *p_avcC = p_box->data.p_avcC;
1194 for( i = 0; i < p_avcC->i_sps; i++ )
1196 FREE( p_avcC->sps[i] );
1198 for( i = 0; i < p_avcC->i_pps; i++ )
1200 FREE( p_avcC->pps[i] );
1202 if( p_avcC->i_sps > 0 ) FREE( p_avcC->sps );
1203 if( p_avcC->i_pps > 0 ) FREE( p_avcC->pps );
1206 static int MP4_ReadBox_sample_soun( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1210 MP4_READBOX_ENTER( MP4_Box_data_sample_soun_t );
1211 p_box->data.p_sample_soun->p_qt_description = NULL;
1213 /* Sanity check needed because the "wave" box does also contain an
1214 * "mp4a" box that we don't understand. */
1218 MP4_READBOX_EXIT( 1 );
1221 for( i = 0; i < 6 ; i++ )
1223 MP4_GET1BYTE( p_box->data.p_sample_soun->i_reserved1[i] );
1226 MP4_GET2BYTES( p_box->data.p_sample_soun->i_data_reference_index );
1229 * XXX hack -> produce a copy of the nearly complete chunk
1233 p_box->data.p_sample_soun->i_qt_description = i_read;
1234 p_box->data.p_sample_soun->p_qt_description = malloc( i_read );
1235 memcpy( p_box->data.p_sample_soun->p_qt_description, p_peek, i_read );
1239 p_box->data.p_sample_soun->i_qt_description = 0;
1240 p_box->data.p_sample_soun->p_qt_description = NULL;
1243 MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_version );
1244 MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_revision_level );
1245 MP4_GET4BYTES( p_box->data.p_sample_soun->i_qt_vendor );
1247 MP4_GET2BYTES( p_box->data.p_sample_soun->i_channelcount );
1248 MP4_GET2BYTES( p_box->data.p_sample_soun->i_samplesize );
1249 MP4_GET2BYTES( p_box->data.p_sample_soun->i_predefined );
1250 MP4_GET2BYTES( p_box->data.p_sample_soun->i_reserved3 );
1251 MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratehi );
1252 MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratelo );
1254 if( p_box->data.p_sample_soun->i_qt_version == 1 &&
1258 MP4_GET4BYTES( p_box->data.p_sample_soun->i_sample_per_packet );
1259 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_packet );
1260 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_frame );
1261 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_sample );
1264 msg_Dbg( p_stream->s,
1265 "read box: \"soun\" qt3+ sample/packet=%d bytes/packet=%d "
1266 "bytes/frame=%d bytes/sample=%d",
1267 p_box->data.p_sample_soun->i_sample_per_packet,
1268 p_box->data.p_sample_soun->i_bytes_per_packet,
1269 p_box->data.p_sample_soun->i_bytes_per_frame,
1270 p_box->data.p_sample_soun->i_bytes_per_sample );
1272 MP4_SeekStream( p_stream, p_box->i_pos +
1273 MP4_BOX_HEADERSIZE( p_box ) + 44 );
1277 p_box->data.p_sample_soun->i_sample_per_packet = 0;
1278 p_box->data.p_sample_soun->i_bytes_per_packet = 0;
1279 p_box->data.p_sample_soun->i_bytes_per_frame = 0;
1280 p_box->data.p_sample_soun->i_bytes_per_sample = 0;
1282 msg_Dbg( p_stream->s, "read box: \"soun\" mp4 or qt1/2 (rest="I64Fd")",
1284 MP4_SeekStream( p_stream, p_box->i_pos +
1285 MP4_BOX_HEADERSIZE( p_box ) + 28 );
1288 if( p_box->i_type == FOURCC_drms )
1290 p_box->data.p_sample_soun->p_drms =
1291 drms_alloc( p_stream->s->p_vlc->psz_homedir );
1293 if( p_box->data.p_sample_soun->p_drms == NULL )
1295 msg_Err( p_stream->s, "drms_alloc() failed" );
1299 MP4_ReadBoxContainerRaw( p_stream, p_box ); /* esds */
1302 msg_Dbg( p_stream->s, "read box: \"soun\" in stsd channel %d "
1303 "sample size %d sampl rate %f",
1304 p_box->data.p_sample_soun->i_channelcount,
1305 p_box->data.p_sample_soun->i_samplesize,
1306 (float)p_box->data.p_sample_soun->i_sampleratehi +
1307 (float)p_box->data.p_sample_soun->i_sampleratelo / 65536 );
1310 MP4_READBOX_EXIT( 1 );
1314 static void MP4_FreeBox_sample_soun( MP4_Box_t *p_box )
1316 FREE( p_box->data.p_sample_soun->p_qt_description );
1318 if( p_box->i_type == FOURCC_drms )
1320 if( p_box->data.p_sample_soun->p_drms )
1322 drms_free( p_box->data.p_sample_soun->p_drms );
1328 int MP4_ReadBox_sample_vide( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1332 MP4_READBOX_ENTER( MP4_Box_data_sample_vide_t );
1334 for( i = 0; i < 6 ; i++ )
1336 MP4_GET1BYTE( p_box->data.p_sample_vide->i_reserved1[i] );
1339 MP4_GET2BYTES( p_box->data.p_sample_vide->i_data_reference_index );
1342 * XXX hack -> produce a copy of the nearly complete chunk
1346 p_box->data.p_sample_vide->i_qt_image_description = i_read;
1347 p_box->data.p_sample_vide->p_qt_image_description = malloc( i_read );
1348 memcpy( p_box->data.p_sample_vide->p_qt_image_description,
1353 p_box->data.p_sample_vide->i_qt_image_description = 0;
1354 p_box->data.p_sample_vide->p_qt_image_description = NULL;
1357 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_version );
1358 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_revision_level );
1359 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_vendor );
1361 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_temporal_quality );
1362 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_spatial_quality );
1364 MP4_GET2BYTES( p_box->data.p_sample_vide->i_width );
1365 MP4_GET2BYTES( p_box->data.p_sample_vide->i_height );
1367 MP4_GET4BYTES( p_box->data.p_sample_vide->i_horizresolution );
1368 MP4_GET4BYTES( p_box->data.p_sample_vide->i_vertresolution );
1370 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_data_size );
1371 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_frame_count );
1373 memcpy( &p_box->data.p_sample_vide->i_compressorname, p_peek, 32 );
1374 p_peek += 32; i_read -= 32;
1376 MP4_GET2BYTES( p_box->data.p_sample_vide->i_depth );
1377 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_color_table );
1379 MP4_SeekStream( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 78);
1380 MP4_ReadBoxContainerRaw( p_stream, p_box );
1383 msg_Dbg( p_stream->s, "read box: \"vide\" in stsd %dx%d depth %d",
1384 p_box->data.p_sample_vide->i_width,
1385 p_box->data.p_sample_vide->i_height,
1386 p_box->data.p_sample_vide->i_depth );
1389 MP4_READBOX_EXIT( 1 );
1393 void MP4_FreeBox_sample_vide( MP4_Box_t *p_box )
1395 FREE( p_box->data.p_sample_vide->p_qt_image_description );
1398 static int MP4_ReadBox_sample_mp4s( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1400 MP4_SeekStream( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
1401 MP4_ReadBoxContainerRaw( p_stream, p_box );
1405 static int MP4_ReadBox_sample_text( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1409 MP4_READBOX_ENTER( MP4_Box_data_sample_text_t );
1411 for( i = 0; i < 6 ; i++ )
1413 MP4_GET1BYTE( p_box->data.p_sample_text->i_reserved1[i] );
1415 MP4_GET2BYTES( p_box->data.p_sample_text->i_data_reference_index );
1417 MP4_GET4BYTES( p_box->data.p_sample_text->i_display_flags );
1418 MP4_GET4BYTES( p_box->data.p_sample_text->i_justification );
1420 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[0] );
1421 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[1] );
1422 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[2] );
1424 MP4_GET8BYTES( p_box->data.p_sample_text->i_text_box );
1425 MP4_GET8BYTES( p_box->data.p_sample_text->i_reserved2 );
1427 MP4_GET2BYTES( p_box->data.p_sample_text->i_font_number );
1428 MP4_GET2BYTES( p_box->data.p_sample_text->i_font_face );
1430 MP4_GET2BYTES( p_box->data.p_sample_text->i_reserved3 );
1432 MP4_GET2BYTES( p_box->data.p_sample_text->i_foreground_color[0] );
1433 MP4_GET2BYTES( p_box->data.p_sample_text->i_foreground_color[1] );
1434 MP4_GET2BYTES( p_box->data.p_sample_text->i_foreground_color[2] );
1437 p_box->data.p_sample_text->psz_text_name = malloc( i + 1 );
1438 memcpy( p_box->data.p_sample_text->psz_text_name, p_peek, i );
1439 p_box->data.p_sample_text->psz_text_name[i] = '\0';
1442 msg_Dbg( p_stream->s, "read box: \"text\" in stsd text name=%s",
1443 p_box->data.p_sample_text->psz_text_name );
1445 MP4_READBOX_EXIT( 1 );
1449 /* We can't easily call it, and anyway ~ 20 bytes lost isn't a real problem */
1450 static void MP4_FreeBox_sample_text( MP4_Box_t *p_box )
1452 FREE( p_box->data.p_sample_text->psz_text_name );
1457 static int MP4_ReadBox_stsd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1460 MP4_READBOX_ENTER( MP4_Box_data_stsd_t );
1462 MP4_GETVERSIONFLAGS( p_box->data.p_stsd );
1464 MP4_GET4BYTES( p_box->data.p_stsd->i_entry_count );
1466 MP4_SeekStream( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
1468 MP4_ReadBoxContainerRaw( p_stream, p_box );
1471 msg_Dbg( p_stream->s, "read box: \"stsd\" entry-count %d",
1472 p_box->data.p_stsd->i_entry_count );
1475 MP4_READBOX_EXIT( 1 );
1479 static int MP4_ReadBox_stsz( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1483 MP4_READBOX_ENTER( MP4_Box_data_stsz_t );
1485 MP4_GETVERSIONFLAGS( p_box->data.p_stsz );
1487 MP4_GET4BYTES( p_box->data.p_stsz->i_sample_size );
1489 MP4_GET4BYTES( p_box->data.p_stsz->i_sample_count );
1491 p_box->data.p_stsz->i_entry_size =
1492 calloc( sizeof( uint32_t ), p_box->data.p_stsz->i_sample_count );
1494 if( !p_box->data.p_stsz->i_sample_size )
1496 for( i=0; (i<p_box->data.p_stsz->i_sample_count)&&(i_read >= 4 ); i++ )
1498 MP4_GET4BYTES( p_box->data.p_stsz->i_entry_size[i] );
1503 msg_Dbg( p_stream->s, "read box: \"stsz\" sample-size %d sample-count %d",
1504 p_box->data.p_stsz->i_sample_size,
1505 p_box->data.p_stsz->i_sample_count );
1508 MP4_READBOX_EXIT( 1 );
1511 static void MP4_FreeBox_stsz( MP4_Box_t *p_box )
1513 FREE( p_box->data.p_stsz->i_entry_size );
1516 static int MP4_ReadBox_stsc( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1520 MP4_READBOX_ENTER( MP4_Box_data_stsc_t );
1522 MP4_GETVERSIONFLAGS( p_box->data.p_stsc );
1524 MP4_GET4BYTES( p_box->data.p_stsc->i_entry_count );
1526 p_box->data.p_stsc->i_first_chunk =
1527 calloc( sizeof( uint32_t ), p_box->data.p_stsc->i_entry_count );
1528 p_box->data.p_stsc->i_samples_per_chunk =
1529 calloc( sizeof( uint32_t ), p_box->data.p_stsc->i_entry_count );
1530 p_box->data.p_stsc->i_sample_description_index =
1531 calloc( sizeof( uint32_t ), p_box->data.p_stsc->i_entry_count );
1533 for( i = 0; (i < p_box->data.p_stsc->i_entry_count )&&( i_read >= 12 );i++ )
1535 MP4_GET4BYTES( p_box->data.p_stsc->i_first_chunk[i] );
1536 MP4_GET4BYTES( p_box->data.p_stsc->i_samples_per_chunk[i] );
1537 MP4_GET4BYTES( p_box->data.p_stsc->i_sample_description_index[i] );
1541 msg_Dbg( p_stream->s, "read box: \"stsc\" entry-count %d",
1542 p_box->data.p_stsc->i_entry_count );
1545 MP4_READBOX_EXIT( 1 );
1548 static void MP4_FreeBox_stsc( MP4_Box_t *p_box )
1550 FREE( p_box->data.p_stsc->i_first_chunk );
1551 FREE( p_box->data.p_stsc->i_samples_per_chunk );
1552 FREE( p_box->data.p_stsc->i_sample_description_index );
1555 static int MP4_ReadBox_stco_co64( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1559 MP4_READBOX_ENTER( MP4_Box_data_co64_t );
1561 MP4_GETVERSIONFLAGS( p_box->data.p_co64 );
1563 MP4_GET4BYTES( p_box->data.p_co64->i_entry_count );
1565 p_box->data.p_co64->i_chunk_offset =
1566 calloc( sizeof( uint64_t ), p_box->data.p_co64->i_entry_count );
1568 for( i = 0; i < p_box->data.p_co64->i_entry_count; i++ )
1570 if( p_box->i_type == FOURCC_stco )
1576 MP4_GET4BYTES( p_box->data.p_co64->i_chunk_offset[i] );
1584 MP4_GET8BYTES( p_box->data.p_co64->i_chunk_offset[i] );
1589 msg_Dbg( p_stream->s, "read box: \"co64\" entry-count %d",
1590 p_box->data.p_co64->i_entry_count );
1593 MP4_READBOX_EXIT( 1 );
1596 static void MP4_FreeBox_stco_co64( MP4_Box_t *p_box )
1598 FREE( p_box->data.p_co64->i_chunk_offset );
1601 static int MP4_ReadBox_stss( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1605 MP4_READBOX_ENTER( MP4_Box_data_stss_t );
1607 MP4_GETVERSIONFLAGS( p_box->data.p_stss );
1609 MP4_GET4BYTES( p_box->data.p_stss->i_entry_count );
1611 p_box->data.p_stss->i_sample_number =
1612 calloc( sizeof( uint32_t ), p_box->data.p_stss->i_entry_count );
1614 for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 4 ); i++ )
1617 MP4_GET4BYTES( p_box->data.p_stss->i_sample_number[i] );
1618 /* XXX in libmp4 sample begin at 0 */
1619 p_box->data.p_stss->i_sample_number[i]--;
1623 msg_Dbg( p_stream->s, "read box: \"stss\" entry-count %d",
1624 p_box->data.p_stss->i_entry_count );
1627 MP4_READBOX_EXIT( 1 );
1630 static void MP4_FreeBox_stss( MP4_Box_t *p_box )
1632 FREE( p_box->data.p_stss->i_sample_number )
1635 static int MP4_ReadBox_stsh( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1639 MP4_READBOX_ENTER( MP4_Box_data_stsh_t );
1641 MP4_GETVERSIONFLAGS( p_box->data.p_stsh );
1644 MP4_GET4BYTES( p_box->data.p_stsh->i_entry_count );
1646 p_box->data.p_stsh->i_shadowed_sample_number =
1647 calloc( sizeof( uint32_t ), p_box->data.p_stsh->i_entry_count );
1649 p_box->data.p_stsh->i_sync_sample_number =
1650 calloc( sizeof( uint32_t ), p_box->data.p_stsh->i_entry_count );
1653 for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 8 ); i++ )
1656 MP4_GET4BYTES( p_box->data.p_stsh->i_shadowed_sample_number[i] );
1657 MP4_GET4BYTES( p_box->data.p_stsh->i_sync_sample_number[i] );
1661 msg_Dbg( p_stream->s, "read box: \"stsh\" entry-count %d",
1662 p_box->data.p_stsh->i_entry_count );
1664 MP4_READBOX_EXIT( 1 );
1667 static void MP4_FreeBox_stsh( MP4_Box_t *p_box )
1669 FREE( p_box->data.p_stsh->i_shadowed_sample_number )
1670 FREE( p_box->data.p_stsh->i_sync_sample_number )
1674 static int MP4_ReadBox_stdp( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1678 MP4_READBOX_ENTER( MP4_Box_data_stdp_t );
1680 MP4_GETVERSIONFLAGS( p_box->data.p_stdp );
1682 p_box->data.p_stdp->i_priority =
1683 calloc( sizeof( uint16_t ), i_read / 2 );
1685 for( i = 0; i < i_read / 2 ; i++ )
1688 MP4_GET2BYTES( p_box->data.p_stdp->i_priority[i] );
1692 msg_Dbg( p_stream->s, "read box: \"stdp\" entry-count "I64Fd,
1696 MP4_READBOX_EXIT( 1 );
1699 static void MP4_FreeBox_stdp( MP4_Box_t *p_box )
1701 FREE( p_box->data.p_stdp->i_priority )
1704 static int MP4_ReadBox_padb( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1708 MP4_READBOX_ENTER( MP4_Box_data_padb_t );
1710 MP4_GETVERSIONFLAGS( p_box->data.p_padb );
1713 MP4_GET4BYTES( p_box->data.p_padb->i_sample_count );
1715 p_box->data.p_padb->i_reserved1 =
1716 calloc( sizeof( uint16_t ), ( p_box->data.p_padb->i_sample_count + 1 ) / 2 );
1717 p_box->data.p_padb->i_pad2 =
1718 calloc( sizeof( uint16_t ), ( p_box->data.p_padb->i_sample_count + 1 ) / 2 );
1719 p_box->data.p_padb->i_reserved2 =
1720 calloc( sizeof( uint16_t ), ( p_box->data.p_padb->i_sample_count + 1 ) / 2 );
1721 p_box->data.p_padb->i_pad1 =
1722 calloc( sizeof( uint16_t ), ( p_box->data.p_padb->i_sample_count + 1 ) / 2 );
1725 for( i = 0; i < i_read / 2 ; i++ )
1727 p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 7 )&0x01;
1728 p_box->data.p_padb->i_pad2[i] = ( (*p_peek) >> 4 )&0x07;
1729 p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 3 )&0x01;
1730 p_box->data.p_padb->i_pad1[i] = ( (*p_peek) )&0x07;
1732 p_peek += 1; i_read -= 1;
1736 msg_Dbg( p_stream->s, "read box: \"stdp\" entry-count "I64Fd,
1740 MP4_READBOX_EXIT( 1 );
1743 static void MP4_FreeBox_padb( MP4_Box_t *p_box )
1745 FREE( p_box->data.p_padb->i_reserved1 );
1746 FREE( p_box->data.p_padb->i_pad2 );
1747 FREE( p_box->data.p_padb->i_reserved2 );
1748 FREE( p_box->data.p_padb->i_pad1 );
1751 static int MP4_ReadBox_elst( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1755 MP4_READBOX_ENTER( MP4_Box_data_padb_t );
1757 MP4_GETVERSIONFLAGS( p_box->data.p_elst );
1760 MP4_GET4BYTES( p_box->data.p_elst->i_entry_count );
1762 p_box->data.p_elst->i_segment_duration =
1763 calloc( sizeof( uint64_t ), p_box->data.p_elst->i_entry_count );
1764 p_box->data.p_elst->i_media_time =
1765 calloc( sizeof( int64_t ), p_box->data.p_elst->i_entry_count );
1766 p_box->data.p_elst->i_media_rate_integer =
1767 calloc( sizeof( uint16_t ), p_box->data.p_elst->i_entry_count );
1768 p_box->data.p_elst->i_media_rate_fraction=
1769 calloc( sizeof( uint16_t ), p_box->data.p_elst->i_entry_count );
1772 for( i = 0; i < p_box->data.p_elst->i_entry_count; i++ )
1774 if( p_box->data.p_elst->i_version == 1 )
1777 MP4_GET8BYTES( p_box->data.p_elst->i_segment_duration[i] );
1779 MP4_GET8BYTES( p_box->data.p_elst->i_media_time[i] );
1784 MP4_GET4BYTES( p_box->data.p_elst->i_segment_duration[i] );
1786 MP4_GET4BYTES( p_box->data.p_elst->i_media_time[i] );
1787 p_box->data.p_elst->i_media_time[i] = (int32_t)p_box->data.p_elst->i_media_time[i];
1790 MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_integer[i] );
1791 MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_fraction[i] );
1795 msg_Dbg( p_stream->s, "read box: \"elst\" entry-count "I64Fd,
1799 MP4_READBOX_EXIT( 1 );
1802 static void MP4_FreeBox_elst( MP4_Box_t *p_box )
1804 FREE( p_box->data.p_elst->i_segment_duration );
1805 FREE( p_box->data.p_elst->i_media_time );
1806 FREE( p_box->data.p_elst->i_media_rate_integer );
1807 FREE( p_box->data.p_elst->i_media_rate_fraction );
1810 static int MP4_ReadBox_cprt( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1812 unsigned int i_language;
1815 MP4_READBOX_ENTER( MP4_Box_data_cprt_t );
1817 MP4_GETVERSIONFLAGS( p_box->data.p_cprt );
1819 i_language = GetWBE( p_peek );
1820 for( i = 0; i < 3; i++ )
1822 p_box->data.p_cprt->i_language[i] =
1823 ( ( i_language >> ( (2-i)*5 ) )&0x1f ) + 0x60;
1825 p_peek += 2; i_read -= 2;
1826 MP4_GETSTRINGZ( p_box->data.p_cprt->psz_notice );
1829 msg_Dbg( p_stream->s, "read box: \"cprt\" language %c%c%c notice %s",
1830 p_box->data.p_cprt->i_language[0],
1831 p_box->data.p_cprt->i_language[1],
1832 p_box->data.p_cprt->i_language[2],
1833 p_box->data.p_cprt->psz_notice );
1836 MP4_READBOX_EXIT( 1 );
1839 static void MP4_FreeBox_cprt( MP4_Box_t *p_box )
1841 FREE( p_box->data.p_cprt->psz_notice );
1845 static int MP4_ReadBox_dcom( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1847 MP4_READBOX_ENTER( MP4_Box_data_dcom_t );
1849 MP4_GETFOURCC( p_box->data.p_dcom->i_algorithm );
1851 msg_Dbg( p_stream->s,
1852 "read box: \"dcom\" compression algorithm : %4.4s",
1853 (char*)&p_box->data.p_dcom->i_algorithm );
1855 MP4_READBOX_EXIT( 1 );
1858 static int MP4_ReadBox_cmvd( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1860 MP4_READBOX_ENTER( MP4_Box_data_cmvd_t );
1862 MP4_GET4BYTES( p_box->data.p_cmvd->i_uncompressed_size );
1864 p_box->data.p_cmvd->i_compressed_size = i_read;
1866 if( !( p_box->data.p_cmvd->p_data = malloc( i_read ) ) )
1868 msg_Dbg( p_stream->s, "read box: \"cmvd\" not enough memory to load data" );
1872 /* now copy compressed data */
1873 memcpy( p_box->data.p_cmvd->p_data,
1877 p_box->data.p_cmvd->b_compressed = 1;
1880 msg_Dbg( p_stream->s, "read box: \"cmvd\" compressed data size %d",
1881 p_box->data.p_cmvd->i_compressed_size );
1884 MP4_READBOX_EXIT( 1 );
1886 static void MP4_FreeBox_cmvd( MP4_Box_t *p_box )
1888 FREE( p_box->data.p_cmvd->p_data );
1892 static int MP4_ReadBox_cmov( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
1897 MP4_Stream_t *p_stream_memory;
1904 if( !( p_box->data.p_cmov = malloc( sizeof( MP4_Box_data_cmov_t ) ) ) )
1906 msg_Err( p_stream->s, "out of memory" );
1909 memset( p_box->data.p_cmov, 0, sizeof( MP4_Box_data_cmov_t ) );
1911 if( !p_box->p_father ||
1912 ( p_box->p_father->i_type != FOURCC_moov && p_box->p_father->i_type != FOURCC_foov) )
1914 msg_Warn( p_stream->s, "Read box: \"cmov\" box alone" );
1918 if( !(i_result = MP4_ReadBoxContainer( p_stream, p_box ) ) )
1923 if( ( p_dcom = MP4_BoxGet( p_box, "dcom" ) ) == NULL ||
1924 ( p_cmvd = MP4_BoxGet( p_box, "cmvd" ) ) == NULL ||
1925 p_cmvd->data.p_cmvd->p_data == NULL )
1927 msg_Warn( p_stream->s, "read box: \"cmov\" incomplete" );
1931 if( p_dcom->data.p_dcom->i_algorithm != FOURCC_zlib )
1933 msg_Dbg( p_stream->s, "read box: \"cmov\" compression algorithm : %4.4s not supported",
1934 (char*)&p_dcom->data.p_dcom->i_algorithm );
1939 msg_Dbg( p_stream->s,
1940 "read box: \"cmov\" zlib unsupported" );
1943 /* decompress data */
1944 /* allocate a new buffer */
1945 if( !( p_data = malloc( p_cmvd->data.p_cmvd->i_uncompressed_size ) ) )
1947 msg_Err( p_stream->s,
1948 "read box: \"cmov\" not enough memory to uncompress data" );
1951 /* init default structures */
1952 z_data.next_in = p_cmvd->data.p_cmvd->p_data;
1953 z_data.avail_in = p_cmvd->data.p_cmvd->i_compressed_size;
1954 z_data.next_out = p_data;
1955 z_data.avail_out = p_cmvd->data.p_cmvd->i_uncompressed_size;
1956 z_data.zalloc = (alloc_func)Z_NULL;
1957 z_data.zfree = (free_func)Z_NULL;
1958 z_data.opaque = (voidpf)Z_NULL;
1961 if( ( i_result = inflateInit( &z_data ) ) != Z_OK )
1963 msg_Err( p_stream->s,
1964 "read box: \"cmov\" error while uncompressing data" );
1970 i_result = inflate( &z_data, Z_NO_FLUSH );
1971 if( ( i_result != Z_OK )&&( i_result != Z_STREAM_END ) )
1973 msg_Err( p_stream->s,
1974 "read box: \"cmov\" error while uncompressing data" );
1979 if( p_cmvd->data.p_cmvd->i_uncompressed_size != z_data.total_out )
1981 msg_Warn( p_stream->s,
1982 "read box: \"cmov\" uncompressing data size mismatch" );
1984 p_cmvd->data.p_cmvd->i_uncompressed_size = z_data.total_out;
1987 i_result = inflateEnd( &z_data );
1988 if( i_result != Z_OK )
1990 msg_Warn( p_stream->s,
1991 "read box: \"cmov\" error while uncompressing data (ignored)" );
1995 free( p_cmvd->data.p_cmvd->p_data );
1996 p_cmvd->data.p_cmvd->p_data = p_data;
1997 p_cmvd->data.p_cmvd->b_compressed = 0;
1999 msg_Dbg( p_stream->s,
2000 "read box: \"cmov\" box succesfully uncompressed" );
2002 /* now create a memory stream */
2003 p_stream_memory = MP4_MemoryStream( p_stream->s,
2004 p_cmvd->data.p_cmvd->i_uncompressed_size,
2005 p_cmvd->data.p_cmvd->p_data );
2007 /* and read uncompressd moov */
2008 p_box->data.p_cmov->p_moov = MP4_ReadBox( p_stream_memory, NULL );
2010 free( p_stream_memory );
2013 msg_Dbg( p_stream->s,
2014 "read box: \"cmov\" compressed movie header completed" );
2016 return( p_box->data.p_cmov->p_moov ? 1 : 0 );
2017 #endif /* HAVE_ZLIB_H */
2020 static int MP4_ReadBox_rdrf( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2023 MP4_READBOX_ENTER( MP4_Box_data_rdrf_t );
2025 MP4_GETVERSIONFLAGS( p_box->data.p_rdrf );
2026 MP4_GETFOURCC( p_box->data.p_rdrf->i_ref_type );
2027 MP4_GET4BYTES( i_len );
2031 p_box->data.p_rdrf->psz_ref = malloc( i_len + 1);
2032 for( i = 0; i < i_len; i++ )
2034 MP4_GET1BYTE( p_box->data.p_rdrf->psz_ref[i] );
2036 p_box->data.p_rdrf->psz_ref[i_len] = '\0';
2040 p_box->data.p_rdrf->psz_ref = NULL;
2044 msg_Dbg( p_stream->s,
2045 "read box: \"rdrf\" type:%4.4s ref %s",
2046 (char*)&p_box->data.p_rdrf->i_ref_type,
2047 p_box->data.p_rdrf->psz_ref );
2050 MP4_READBOX_EXIT( 1 );
2053 static void MP4_FreeBox_rdrf( MP4_Box_t *p_box )
2055 FREE( p_box->data.p_rdrf->psz_ref )
2059 static int MP4_ReadBox_rmdr( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2061 MP4_READBOX_ENTER( MP4_Box_data_rmdr_t );
2063 MP4_GETVERSIONFLAGS( p_box->data.p_rmdr );
2065 MP4_GET4BYTES( p_box->data.p_rmdr->i_rate );
2068 msg_Dbg( p_stream->s,
2069 "read box: \"rmdr\" rate:%d",
2070 p_box->data.p_rmdr->i_rate );
2072 MP4_READBOX_EXIT( 1 );
2075 static int MP4_ReadBox_rmqu( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2077 MP4_READBOX_ENTER( MP4_Box_data_rmqu_t );
2079 MP4_GET4BYTES( p_box->data.p_rmqu->i_quality );
2082 msg_Dbg( p_stream->s,
2083 "read box: \"rmqu\" quality:%d",
2084 p_box->data.p_rmqu->i_quality );
2086 MP4_READBOX_EXIT( 1 );
2089 static int MP4_ReadBox_rmvc( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2091 MP4_READBOX_ENTER( MP4_Box_data_rmvc_t );
2092 MP4_GETVERSIONFLAGS( p_box->data.p_rmvc );
2094 MP4_GETFOURCC( p_box->data.p_rmvc->i_gestaltType );
2095 MP4_GET4BYTES( p_box->data.p_rmvc->i_val1 );
2096 MP4_GET4BYTES( p_box->data.p_rmvc->i_val2 );
2097 MP4_GET2BYTES( p_box->data.p_rmvc->i_checkType );
2100 msg_Dbg( p_stream->s,
2101 "read box: \"rmvc\" gestaltType:%4.4s val1:0x%x val2:0x%x checkType:0x%x",
2102 (char*)&p_box->data.p_rmvc->i_gestaltType,
2103 p_box->data.p_rmvc->i_val1,p_box->data.p_rmvc->i_val2,
2104 p_box->data.p_rmvc->i_checkType );
2107 MP4_READBOX_EXIT( 1 );
2110 static int MP4_ReadBox_drms( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2112 MP4_Box_t *p_drms_box = p_box;
2114 MP4_READBOX_ENTER( uint8_t );
2118 p_drms_box = p_drms_box->p_father;
2119 } while( p_drms_box && p_drms_box->i_type != FOURCC_drms );
2121 if( p_drms_box && p_drms_box->data.p_sample_soun->p_drms )
2123 if( drms_init( p_drms_box->data.p_sample_soun->p_drms,
2124 p_box->i_type, p_peek, i_read ) )
2126 msg_Err( p_stream->s, "drms_init( %4.4s ) failed",
2127 (char *)&p_box->i_type );
2129 drms_free( p_drms_box->data.p_sample_soun->p_drms );
2130 p_drms_box->data.p_sample_soun->p_drms = NULL;
2134 MP4_READBOX_EXIT( 1 );
2137 static int MP4_ReadBox_0xa9xxx( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2139 int16_t i_length, i_dummy;
2141 MP4_READBOX_ENTER( MP4_Box_data_0xa9xxx_t );
2143 p_box->data.p_0xa9xxx->psz_text = NULL;
2145 MP4_GET2BYTES( i_length );
2146 MP4_GET2BYTES( i_dummy );
2150 if( i_length > i_read ) i_length = i_read;
2152 p_box->data.p_0xa9xxx->psz_text = malloc( i_length + 1 );
2154 memcpy( p_box->data.p_0xa9xxx->psz_text,
2156 p_box->data.p_0xa9xxx->psz_text[i_length] = '\0';
2159 msg_Dbg( p_stream->s,
2160 "read box: \"%4.4s\" text=`%s'",
2161 (char*)&p_box->i_type,
2162 p_box->data.p_0xa9xxx->psz_text );
2166 MP4_READBOX_EXIT( 1 );
2168 static void MP4_FreeBox_0xa9xxx( MP4_Box_t *p_box )
2170 FREE( p_box->data.p_0xa9xxx->psz_text );
2174 static int MP4_ReadBox_default( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
2176 if( !p_box->p_father )
2180 if( p_box->p_father->i_type == FOURCC_stsd )
2182 MP4_Box_t *p_mdia = MP4_BoxGet( p_box, "../../../.." );
2185 if( p_mdia == NULL || p_mdia->i_type != FOURCC_mdia ||
2186 (p_hdlr = MP4_BoxGet( p_mdia, "hdlr" )) == NULL )
2190 switch( p_hdlr->data.p_hdlr->i_handler_type )
2193 return MP4_ReadBox_sample_soun( p_stream, p_box );
2195 return MP4_ReadBox_sample_vide( p_stream, p_box );
2197 return MP4_ReadBox_sample_text( p_stream, p_box );
2199 msg_Warn( p_stream->s,
2200 "unknown handler type in stsd (uncompletetly loaded)" );
2206 msg_Warn( p_stream->s,
2207 "unknown box type %4.4s (uncompletetly loaded)",
2208 (char*)&p_box->i_type );
2213 /**** ------------------------------------------------------------------- ****/
2214 /**** "Higher level" Functions ****/
2215 /**** ------------------------------------------------------------------- ****/
2220 int (*MP4_ReadBox_function )( MP4_Stream_t *p_stream, MP4_Box_t *p_box );
2221 void (*MP4_FreeBox_function )( MP4_Box_t *p_box );
2222 } MP4_Box_Function [] =
2225 { FOURCC_moov, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2226 { FOURCC_trak, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2227 { FOURCC_mdia, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2228 { FOURCC_moof, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2229 { FOURCC_minf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2230 { FOURCC_stbl, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2231 { FOURCC_dinf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2232 { FOURCC_edts, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2233 { FOURCC_udta, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2234 { FOURCC_nmhd, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2235 { FOURCC_hnti, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2236 { FOURCC_rmra, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2237 { FOURCC_rmda, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2238 { FOURCC_tref, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2239 { FOURCC_gmhd, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2240 { FOURCC_wave, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2243 { FOURCC_ftyp, MP4_ReadBox_ftyp, MP4_FreeBox_ftyp },
2244 { FOURCC_cmov, MP4_ReadBox_cmov, MP4_FreeBox_Common },
2245 { FOURCC_mvhd, MP4_ReadBox_mvhd, MP4_FreeBox_Common },
2246 { FOURCC_tkhd, MP4_ReadBox_tkhd, MP4_FreeBox_Common },
2247 { FOURCC_mdhd, MP4_ReadBox_mdhd, MP4_FreeBox_Common },
2248 { FOURCC_hdlr, MP4_ReadBox_hdlr, MP4_FreeBox_hdlr },
2249 { FOURCC_vmhd, MP4_ReadBox_vmhd, MP4_FreeBox_Common },
2250 { FOURCC_smhd, MP4_ReadBox_smhd, MP4_FreeBox_Common },
2251 { FOURCC_hmhd, MP4_ReadBox_hmhd, MP4_FreeBox_Common },
2252 { FOURCC_url, MP4_ReadBox_url, MP4_FreeBox_url },
2253 { FOURCC_urn, MP4_ReadBox_urn, MP4_FreeBox_urn },
2254 { FOURCC_dref, MP4_ReadBox_dref, MP4_FreeBox_Common },
2255 { FOURCC_stts, MP4_ReadBox_stts, MP4_FreeBox_stts },
2256 { FOURCC_ctts, MP4_ReadBox_ctts, MP4_FreeBox_ctts },
2257 { FOURCC_stsd, MP4_ReadBox_stsd, MP4_FreeBox_Common },
2258 { FOURCC_stsz, MP4_ReadBox_stsz, MP4_FreeBox_stsz },
2259 { FOURCC_stsc, MP4_ReadBox_stsc, MP4_FreeBox_stsc },
2260 { FOURCC_stco, MP4_ReadBox_stco_co64, MP4_FreeBox_stco_co64 },
2261 { FOURCC_co64, MP4_ReadBox_stco_co64, MP4_FreeBox_stco_co64 },
2262 { FOURCC_stss, MP4_ReadBox_stss, MP4_FreeBox_stss },
2263 { FOURCC_stsh, MP4_ReadBox_stsh, MP4_FreeBox_stsh },
2264 { FOURCC_stdp, MP4_ReadBox_stdp, MP4_FreeBox_stdp },
2265 { FOURCC_padb, MP4_ReadBox_padb, MP4_FreeBox_padb },
2266 { FOURCC_elst, MP4_ReadBox_elst, MP4_FreeBox_elst },
2267 { FOURCC_cprt, MP4_ReadBox_cprt, MP4_FreeBox_cprt },
2268 { FOURCC_esds, MP4_ReadBox_esds, MP4_FreeBox_esds },
2269 { FOURCC_dcom, MP4_ReadBox_dcom, MP4_FreeBox_Common },
2270 { FOURCC_cmvd, MP4_ReadBox_cmvd, MP4_FreeBox_cmvd },
2271 { FOURCC_avcC, MP4_ReadBox_avcC, MP4_FreeBox_avcC },
2273 /* Nothing to do with this box */
2274 { FOURCC_mdat, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2275 { FOURCC_skip, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2276 { FOURCC_free, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2277 { FOURCC_wide, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2280 { FOURCC_soun, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2281 { FOURCC_ms02, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2282 { FOURCC_ms11, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2283 { FOURCC_ms55, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2284 { FOURCC__mp3, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2285 { FOURCC_mp4a, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2286 { FOURCC_twos, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2287 { FOURCC_sowt, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2288 { FOURCC_QDMC, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2289 { FOURCC_QDM2, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2290 { FOURCC_ima4, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2291 { FOURCC_IMA4, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2292 { FOURCC_dvi, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2293 { FOURCC_alaw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2294 { FOURCC_ulaw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2295 { FOURCC_raw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2296 { FOURCC_MAC3, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2297 { FOURCC_MAC6, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2298 { FOURCC_Qclp, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2299 { FOURCC_samr, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2300 { FOURCC_OggS, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2302 { FOURCC_vide, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2303 { FOURCC_mp4v, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2304 { FOURCC_SVQ1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2305 { FOURCC_SVQ3, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2306 { FOURCC_ZyGo, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2307 { FOURCC_DIVX, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2308 { FOURCC_XVID, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2309 { FOURCC_h263, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2310 { FOURCC_s263, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2311 { FOURCC_cvid, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2312 { FOURCC_3IV1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2313 { FOURCC_3iv1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2314 { FOURCC_3IV2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2315 { FOURCC_3iv2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2316 { FOURCC_3IVD, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2317 { FOURCC_3ivd, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2318 { FOURCC_3VID, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2319 { FOURCC_3vid, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2320 { FOURCC_mjpa, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2321 { FOURCC_mjpb, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2323 { FOURCC_mjqt, MP4_ReadBox_default, NULL }, /* found in mjpa/b */
2324 { FOURCC_mjht, MP4_ReadBox_default, NULL },
2326 { FOURCC_dvc, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2327 { FOURCC_dvp, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2328 { FOURCC_VP31, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2329 { FOURCC_vp31, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2330 { FOURCC_h264, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2332 { FOURCC_jpeg, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2333 { FOURCC_avc1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2335 { FOURCC_mp4s, MP4_ReadBox_sample_mp4s, MP4_FreeBox_Common },
2337 /* XXX there is 2 box where we could find this entry stbl and tref*/
2338 { FOURCC_hint, MP4_ReadBox_default, MP4_FreeBox_Common },
2340 /* found in tref box */
2341 { FOURCC_dpnd, MP4_ReadBox_default, NULL },
2342 { FOURCC_ipir, MP4_ReadBox_default, NULL },
2343 { FOURCC_mpod, MP4_ReadBox_default, NULL },
2346 { FOURCC_rtp, MP4_ReadBox_default, NULL },
2349 { FOURCC_rdrf, MP4_ReadBox_rdrf, MP4_FreeBox_rdrf },
2350 { FOURCC_rmdr, MP4_ReadBox_rmdr, MP4_FreeBox_Common },
2351 { FOURCC_rmqu, MP4_ReadBox_rmqu, MP4_FreeBox_Common },
2352 { FOURCC_rmvc, MP4_ReadBox_rmvc, MP4_FreeBox_Common },
2354 { FOURCC_drms, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2355 { FOURCC_sinf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2356 { FOURCC_schi, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2357 { FOURCC_user, MP4_ReadBox_drms, MP4_FreeBox_Common },
2358 { FOURCC_key, MP4_ReadBox_drms, MP4_FreeBox_Common },
2359 { FOURCC_iviv, MP4_ReadBox_drms, MP4_FreeBox_Common },
2360 { FOURCC_name, MP4_ReadBox_drms, MP4_FreeBox_Common },
2361 { FOURCC_priv, MP4_ReadBox_drms, MP4_FreeBox_Common },
2364 { FOURCC_0xa9nam,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2365 { FOURCC_0xa9aut,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2366 { FOURCC_0xa9cpy,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2367 { FOURCC_0xa9swr,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2368 { FOURCC_0xa9inf,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2369 { FOURCC_0xa9ART,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2370 { FOURCC_0xa9dir,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2371 { FOURCC_0xa9cmt,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2372 { FOURCC_0xa9req,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2373 { FOURCC_0xa9day,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2374 { FOURCC_0xa9des,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2375 { FOURCC_0xa9fmt,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2376 { FOURCC_0xa9prd,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2377 { FOURCC_0xa9prf,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2378 { FOURCC_0xa9src,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2381 { 0, MP4_ReadBox_default, NULL }
2386 /*****************************************************************************
2387 * MP4_ReadBox : parse the actual box and the children
2388 * XXX : Do not go to the next box
2389 *****************************************************************************/
2390 static MP4_Box_t *MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_father )
2392 MP4_Box_t *p_box = malloc( sizeof( MP4_Box_t ) );
2393 unsigned int i_index;
2395 if( !MP4_ReadBoxCommon( p_stream, p_box ) )
2397 msg_Warn( p_stream->s, "cannot read one box" );
2401 if( !p_box->i_size )
2403 msg_Dbg( p_stream->s, "found an empty box (null size)" );
2407 p_box->p_father = p_father;
2409 /* Now search function to call */
2410 for( i_index = 0; ; i_index++ )
2412 if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
2413 ( MP4_Box_Function[i_index].i_type == 0 ) )
2419 if( !(MP4_Box_Function[i_index].MP4_ReadBox_function)( p_stream, p_box ) )
2428 /*****************************************************************************
2429 * MP4_FreeBox : free memory after read with MP4_ReadBox and all
2431 *****************************************************************************/
2432 void MP4_BoxFree( stream_t *s, MP4_Box_t *p_box )
2434 unsigned int i_index;
2442 for( p_child = p_box->p_first; p_child != NULL; )
2446 p_next = p_child->p_next;
2447 MP4_BoxFree( s, p_child );
2451 /* Now search function to call */
2452 if( p_box->data.p_data )
2454 for( i_index = 0; ; i_index++ )
2456 if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
2457 ( MP4_Box_Function[i_index].i_type == 0 ) )
2462 if( MP4_Box_Function[i_index].MP4_FreeBox_function == NULL )
2464 /* Should not happen */
2466 "cannot free box %4.4s, type unknown",
2467 (char*)&p_box->i_type );
2471 MP4_Box_Function[i_index].MP4_FreeBox_function( p_box );
2474 free( p_box->data.p_data );
2480 /*****************************************************************************
2481 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
2482 *****************************************************************************
2483 * The first box is a virtual box "root" and is the father for all first
2484 * level boxes for the file, a sort of virtual contener
2485 *****************************************************************************/
2486 MP4_Box_t *MP4_BoxGetRoot( stream_t *s )
2489 MP4_Stream_t *p_stream;
2492 p_root = malloc( sizeof( MP4_Box_t ) );
2494 p_root->i_type = VLC_FOURCC( 'r', 'o', 'o', 't' );
2495 p_root->i_shortsize = 1;
2496 p_root->i_size = stream_Size( s );
2497 CreateUUID( &p_root->i_uuid, p_root->i_type );
2499 p_root->data.p_data = NULL;
2500 p_root->p_father = NULL;
2501 p_root->p_first = NULL;
2502 p_root->p_last = NULL;
2503 p_root->p_next = NULL;
2505 p_stream = MP4_InputStream( s );
2507 i_result = MP4_ReadBoxContainerRaw( p_stream, p_root );
2517 /* check if there is a cmov, if so replace
2518 compressed moov by uncompressed one */
2519 if( ( ( p_moov = MP4_BoxGet( p_root, "moov" ) ) &&
2520 ( p_cmov = MP4_BoxGet( p_root, "moov/cmov" ) ) ) ||
2521 ( ( p_moov = MP4_BoxGet( p_root, "foov" ) ) &&
2522 ( p_cmov = MP4_BoxGet( p_root, "foov/cmov" ) ) ) )
2524 /* rename the compressed moov as a box to skip */
2525 p_moov->i_type = FOURCC_skip;
2527 /* get uncompressed p_moov */
2528 p_moov = p_cmov->data.p_cmov->p_moov;
2529 p_cmov->data.p_cmov->p_moov = NULL;
2531 /* make p_root father of this new moov */
2532 p_moov->p_father = p_root;
2534 /* insert this new moov box as first child of p_root */
2535 p_moov->p_next = p_child = p_root->p_first;
2536 p_root->p_first = p_moov;
2544 static void __MP4_BoxDumpStructure( stream_t *s,
2545 MP4_Box_t *p_box, unsigned int i_level )
2551 msg_Dbg( s, "dumping root Box \"%4.4s\"",
2552 (char*)&p_box->i_type );
2558 memset( str, (uint8_t)' ', 512 );
2559 for( i = 0; i < i_level; i++ )
2563 sprintf( str + i_level * 5, "+ %4.4s size %d",
2564 (char*)&p_box->i_type,
2565 (uint32_t)p_box->i_size );
2567 msg_Dbg( s, "%s", str );
2569 p_child = p_box->p_first;
2572 __MP4_BoxDumpStructure( s, p_child, i_level + 1 );
2573 p_child = p_child->p_next;
2577 void MP4_BoxDumpStructure( stream_t *s, MP4_Box_t *p_box )
2579 __MP4_BoxDumpStructure( s, p_box, 0 );
2584 /*****************************************************************************
2585 *****************************************************************************
2587 ** High level methods to acces an MP4 file
2589 *****************************************************************************
2590 *****************************************************************************/
2591 static void __get_token( char **ppsz_path, char **ppsz_token, int *pi_number )
2594 if( !*ppsz_path[0] )
2601 while( (*ppsz_path)[i_len] &&
2602 (*ppsz_path)[i_len] != '/' && (*ppsz_path)[i_len] != '[' )
2606 if( !i_len && **ppsz_path == '/' )
2610 *ppsz_token = malloc( i_len + 1 );
2612 memcpy( *ppsz_token, *ppsz_path, i_len );
2614 (*ppsz_token)[i_len] = '\0';
2616 *ppsz_path += i_len;
2618 if( **ppsz_path == '[' )
2621 *pi_number = strtol( *ppsz_path, NULL, 10 );
2622 while( **ppsz_path && **ppsz_path != ']' )
2626 if( **ppsz_path == ']' )
2635 while( **ppsz_path == '/' )
2641 static void __MP4_BoxGet( MP4_Box_t **pp_result,
2642 MP4_Box_t *p_box, char *psz_fmt, va_list args)
2652 vasprintf( &psz_path, psz_fmt, args );
2654 if( !psz_path || !psz_path[0] )
2661 // fprintf( stderr, "path:'%s'\n", psz_path );
2662 psz_fmt = psz_path; /* keep this pointer, as it need to be unallocated */
2668 __get_token( &psz_path, &psz_token, &i_number );
2669 // fprintf( stderr, "path:'%s', token:'%s' n:%d\n",
2670 // psz_path,psz_token,i_number );
2679 if( !strcmp( psz_token, "/" ) )
2682 while( p_box && p_box->i_type != VLC_FOURCC( 'r', 'o', 'o', 't' ) )
2684 p_box = p_box->p_father;
2695 if( !strcmp( psz_token, "." ) )
2700 if( !strcmp( psz_token, ".." ) )
2702 p_box = p_box->p_father;
2712 if( strlen( psz_token ) == 4 )
2715 i_fourcc = VLC_FOURCC( psz_token[0], psz_token[1],
2716 psz_token[2], psz_token[3] );
2717 p_box = p_box->p_first;
2727 if( p_box->i_type == i_fourcc )
2735 p_box = p_box->p_next;
2739 if( strlen( psz_token ) == 0 )
2741 p_box = p_box->p_first;
2756 p_box = p_box->p_next;
2761 // fprintf( stderr, "Argg malformed token \"%s\"",psz_token );
2772 /*****************************************************************************
2773 * MP4_BoxGet: find a box given a path relative to p_box
2774 *****************************************************************************
2775 * Path Format: . .. / as usual
2776 * [number] to specifie box number ex: trak[12]
2778 * ex: /moov/trak[12]
2780 *****************************************************************************/
2781 MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, char *psz_fmt, ... )
2784 MP4_Box_t *p_result;
2786 va_start( args, psz_fmt );
2787 __MP4_BoxGet( &p_result, p_box, psz_fmt, args );
2793 /*****************************************************************************
2794 * MP4_BoxCount: count box given a path relative to p_box
2795 *****************************************************************************
2796 * Path Format: . .. / as usual
2797 * [number] to specifie box number ex: trak[12]
2799 * ex: /moov/trak[12]
2801 *****************************************************************************/
2802 int MP4_BoxCount( MP4_Box_t *p_box, char *psz_fmt, ... )
2806 MP4_Box_t *p_result, *p_next;
2808 va_start( args, psz_fmt );
2809 __MP4_BoxGet( &p_result, p_box, psz_fmt, args );
2817 for( p_next = p_result->p_next; p_next != NULL; p_next = p_next->p_next)
2819 if( p_next->i_type == p_result->i_type)