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