mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 06:42:03 +00:00
6e9cbdc104
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29305 b3059339-0415-0410-9bf9-f77b7e298cf2
129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/*
|
|
* MP4 file format parser code
|
|
*
|
|
* Copyright (C) 2002 Felix Buenemann <atmosfear at users.sourceforge.net>
|
|
* Code inspired by libmp4 from http://mpeg4ip.sourceforge.net/.
|
|
*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* MPlayer is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPLAYER_PARSE_MP4_H
|
|
#define MPLAYER_PARSE_MP4_H
|
|
|
|
#include <inttypes.h>
|
|
|
|
/* one byte tag identifiers */
|
|
#define MP4ODescrTag 0x01
|
|
#define MP4IODescrTag 0x02
|
|
#define MP4ESDescrTag 0x03
|
|
#define MP4DecConfigDescrTag 0x04
|
|
#define MP4DecSpecificDescrTag 0x05
|
|
#define MP4SLConfigDescrTag 0x06
|
|
#define MP4ContentIdDescrTag 0x07
|
|
#define MP4SupplContentIdDescrTag 0x08
|
|
#define MP4IPIPtrDescrTag 0x09
|
|
#define MP4IPMPPtrDescrTag 0x0A
|
|
#define MP4IPMPDescrTag 0x0B
|
|
#define MP4RegistrationDescrTag 0x0D
|
|
#define MP4ESIDIncDescrTag 0x0E
|
|
#define MP4ESIDRefDescrTag 0x0F
|
|
#define MP4FileIODescrTag 0x10
|
|
#define MP4FileODescrTag 0x11
|
|
#define MP4ExtProfileLevelDescrTag 0x13
|
|
#define MP4ExtDescrTagsStart 0x80
|
|
#define MP4ExtDescrTagsEnd 0xFE
|
|
|
|
/* object type identifiers in the ESDS */
|
|
/* See http://gpac.sourceforge.net/tutorial/mediatypes.htm */
|
|
/* BIFS stream version 1 */
|
|
#define MP4OTI_MPEG4Systems1 0x01
|
|
/* BIFS stream version 2 */
|
|
#define MP4OTI_MPEG4Systems2 0x02
|
|
/* MPEG-4 visual stream */
|
|
#define MP4OTI_MPEG4Visual 0x20
|
|
/* MPEG-4 audio stream */
|
|
#define MP4OTI_MPEG4Audio 0x40
|
|
/* MPEG-2 visual streams with various profiles */
|
|
#define MP4OTI_MPEG2VisualSimple 0x60
|
|
#define MP4OTI_MPEG2VisualMain 0x61
|
|
#define MP4OTI_MPEG2VisualSNR 0x62
|
|
#define MP4OTI_MPEG2VisualSpatial 0x63
|
|
#define MP4OTI_MPEG2VisualHigh 0x64
|
|
#define MP4OTI_MPEG2Visual422 0x65
|
|
/* MPEG-2 audio stream part 7 ("AAC") with various profiles */
|
|
#define MP4OTI_MPEG2AudioMain 0x66
|
|
#define MP4OTI_MPEG2AudioLowComplexity 0x67
|
|
#define MP4OTI_MPEG2AudioScaleableSamplingRate 0x68
|
|
/* MPEG-2 audio part 3 ("MP3") */
|
|
#define MP4OTI_MPEG2AudioPart3 0x69
|
|
/* MPEG-1 visual visual stream */
|
|
#define MP4OTI_MPEG1Visual 0x6A
|
|
/* MPEG-1 audio stream part 3 ("MP3") */
|
|
#define MP4OTI_MPEG1Audio 0x6B
|
|
/* JPEG visual stream */
|
|
#define MP4OTI_JPEG 0x6C
|
|
/* 3GPP2 */
|
|
#define MP4OTI_13kVoice 0xE1
|
|
|
|
/* I define uint24 here for better understanding */
|
|
#ifndef uint24_t
|
|
#define uint24_t uint32_t
|
|
#endif
|
|
|
|
/* esds_t */
|
|
typedef struct {
|
|
uint8_t version;
|
|
uint24_t flags;
|
|
|
|
/* 0x03 ESDescrTag */
|
|
uint16_t ESId;
|
|
uint8_t streamPriority;
|
|
|
|
/* 0x04 DecConfigDescrTag */
|
|
uint8_t objectTypeId;
|
|
uint8_t streamType;
|
|
/* XXX: really streamType is
|
|
* only 6bit, followed by:
|
|
* 1bit upStream
|
|
* 1bit reserved
|
|
*/
|
|
uint24_t bufferSizeDB;
|
|
uint32_t maxBitrate;
|
|
uint32_t avgBitrate;
|
|
|
|
/* 0x05 DecSpecificDescrTag */
|
|
uint16_t decoderConfigLen;
|
|
uint8_t *decoderConfig;
|
|
|
|
/* 0x06 SLConfigDescrTag */
|
|
uint8_t SLConfigLen;
|
|
uint8_t *SLConfig;
|
|
|
|
/* TODO: add the missing tags,
|
|
* I currently have no specs
|
|
* for them and doubt they
|
|
* are currently needed ::atmos
|
|
*/
|
|
|
|
} esds_t;
|
|
|
|
int mp4_parse_esds(unsigned char *data, int datalen, esds_t *esds);
|
|
void mp4_free_esds(esds_t *esds);
|
|
|
|
#endif /* MPLAYER_PARSE_MP4_H */
|
|
|