330 lines
10 KiB
C
330 lines
10 KiB
C
/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
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**
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** This program 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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** This program 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
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
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**
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** $Id: mp4ffint.h,v 1.15 2004/01/14 20:50:22 menno Exp $
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**/
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#ifndef MP4FF_INTERNAL_H
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#define MP4FF_INTERNAL_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "mp4ff_int_types.h"
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#ifdef _WIN32
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#define ITUNES_DRM
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#endif
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#define MAX_TRACKS 1024
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#define TRACK_UNKNOWN 0
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#define TRACK_AUDIO 1
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#define TRACK_VIDEO 2
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#define TRACK_SYSTEM 3
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#define SUBATOMIC 128
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/* atoms without subatoms */
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#define ATOM_FTYP 129
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#define ATOM_MDAT 130
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#define ATOM_MVHD 131
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#define ATOM_TKHD 132
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#define ATOM_TREF 133
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#define ATOM_MDHD 134
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#define ATOM_VMHD 135
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#define ATOM_SMHD 136
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#define ATOM_HMHD 137
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#define ATOM_STSD 138
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#define ATOM_STTS 139
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#define ATOM_STSZ 140
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#define ATOM_STZ2 141
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#define ATOM_STCO 142
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#define ATOM_STSC 143
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#define ATOM_MP4A 144
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#define ATOM_MP4V 145
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#define ATOM_MP4S 146
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#define ATOM_ESDS 147
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#define ATOM_META 148 /* iTunes Metadata box */
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#define ATOM_NAME 149 /* iTunes Metadata name box */
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#define ATOM_DATA 150 /* iTunes Metadata data box */
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#define ATOM_CTTS 151
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#define ATOM_FRMA 152
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#define ATOM_IVIV 153
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#define ATOM_PRIV 154
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#define ATOM_UNKNOWN 255
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#define ATOM_FREE ATOM_UNKNOWN
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#define ATOM_SKIP ATOM_UNKNOWN
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/* atoms with subatoms */
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#define ATOM_MOOV 1
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#define ATOM_TRAK 2
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#define ATOM_EDTS 3
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#define ATOM_MDIA 4
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#define ATOM_MINF 5
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#define ATOM_STBL 6
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#define ATOM_UDTA 7
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#define ATOM_ILST 8 /* iTunes Metadata list */
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#define ATOM_TITLE 9
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#define ATOM_ARTIST 10
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#define ATOM_WRITER 11
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#define ATOM_ALBUM 12
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#define ATOM_DATE 13
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#define ATOM_TOOL 14
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#define ATOM_COMMENT 15
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#define ATOM_GENRE1 16
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#define ATOM_TRACK 17
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#define ATOM_DISC 18
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#define ATOM_COMPILATION 19
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#define ATOM_GENRE2 20
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#define ATOM_TEMPO 21
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#define ATOM_COVER 22
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#define ATOM_DRMS 23
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#define ATOM_SINF 24
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#define ATOM_SCHI 25
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifndef _WIN32
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#define stricmp strcasecmp
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#endif
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/* file callback structure */
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typedef struct
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{
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uint32_t (*read)(void *user_data, void *buffer, uint32_t length);
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uint32_t (*write)(void *udata, void *buffer, uint32_t length);
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uint32_t (*seek)(void *user_data, uint64_t position);
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uint32_t (*truncate)(void *user_data);
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void *user_data;
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} mp4ff_callback_t;
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/* metadata tag structure */
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typedef struct
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{
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char *item;
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char *value;
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} mp4ff_tag_t;
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/* metadata list structure */
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typedef struct
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{
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mp4ff_tag_t *tags;
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uint32_t count;
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} mp4ff_metadata_t;
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typedef struct
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{
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int32_t type;
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int32_t channelCount;
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int32_t sampleSize;
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uint16_t sampleRate;
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int32_t audioType;
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/* stsd */
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int32_t stsd_entry_count;
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/* stsz */
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int32_t stsz_sample_size;
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int32_t stsz_sample_count;
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int32_t *stsz_table;
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/* stts */
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int32_t stts_entry_count;
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int32_t *stts_sample_count;
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int32_t *stts_sample_delta;
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/* stsc */
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int32_t stsc_entry_count;
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int32_t *stsc_first_chunk;
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int32_t *stsc_samples_per_chunk;
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int32_t *stsc_sample_desc_index;
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/* stsc */
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int32_t stco_entry_count;
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int32_t *stco_chunk_offset;
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/* ctts */
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int32_t ctts_entry_count;
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int32_t *ctts_sample_count;
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int32_t *ctts_sample_offset;
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/* esde */
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uint8_t *decoderConfig;
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int32_t decoderConfigLen;
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uint32_t maxBitrate;
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uint32_t avgBitrate;
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uint32_t timeScale;
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uint64_t duration;
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#ifdef ITUNES_DRM
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/* drms */
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void *p_drms;
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#endif
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} mp4ff_track_t;
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/* mp4 main file structure */
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typedef struct
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{
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/* stream to read from */
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mp4ff_callback_t *stream;
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int64_t current_position;
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int32_t moov_read;
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uint64_t moov_offset;
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uint64_t moov_size;
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uint8_t last_atom;
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uint64_t file_size;
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/* mvhd */
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int32_t time_scale;
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int32_t duration;
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/* incremental track index while reading the file */
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int32_t total_tracks;
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/* track data */
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mp4ff_track_t *track[MAX_TRACKS];
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/* metadata */
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mp4ff_metadata_t tags;
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} mp4ff_t;
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/* mp4util.c */
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int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size);
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int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size);
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uint64_t mp4ff_read_int64(mp4ff_t *f);
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uint32_t mp4ff_read_int32(mp4ff_t *f);
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uint32_t mp4ff_read_int24(mp4ff_t *f);
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uint16_t mp4ff_read_int16(mp4ff_t *f);
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uint8_t mp4ff_read_char(mp4ff_t *f);
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int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data);
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uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f);
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int64_t mp4ff_position(const mp4ff_t *f);
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int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position);
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int32_t mp4ff_truncate(mp4ff_t * f);
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char * mp4ff_read_string(mp4ff_t * f,uint32_t length);
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/* mp4atom.c */
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static int32_t mp4ff_atom_get_size(const int8_t *data);
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static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1,
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const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2);
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static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, const int8_t c, const int8_t d);
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uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size);
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static int32_t mp4ff_read_stsz(mp4ff_t *f);
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static int32_t mp4ff_read_esds(mp4ff_t *f);
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static int32_t mp4ff_read_mp4a(mp4ff_t *f);
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static int32_t mp4ff_read_stsd(mp4ff_t *f);
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static int32_t mp4ff_read_stsc(mp4ff_t *f);
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static int32_t mp4ff_read_stco(mp4ff_t *f);
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static int32_t mp4ff_read_stts(mp4ff_t *f);
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#ifdef USE_TAGGING
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static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size);
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#endif
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int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type);
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/* mp4sample.c */
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static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample,
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int32_t *chunk_sample, int32_t *chunk);
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static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk);
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static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track,
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const int32_t chunk_sample, const int32_t sample);
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static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample);
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int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample);
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int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample);
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#ifdef USE_TAGGING
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/* mp4meta.c */
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static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value);
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static int32_t mp4ff_tag_set_field(mp4ff_metadata_t *tags, const char *item, const char *value);
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static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name);
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static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size);
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static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value);
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int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size);
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int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags);
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int32_t mp4ff_meta_get_num_items(const mp4ff_t *f);
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int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index,
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char **item, char **value);
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int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_writer(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_tool(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_genre(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_track(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_disc(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_compilation(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_tempo(const mp4ff_t *f, char **value);
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int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value);
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#endif
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/* mp4ff.c */
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mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f);
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#ifdef USE_TAGGING
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mp4ff_t *mp4ff_open_edit(mp4ff_callback_t *f);
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#endif
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void mp4ff_close(mp4ff_t *ff);
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/*void mp4ff_track_add(mp4ff_t *f);*/
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int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size);
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int32_t parse_atoms(mp4ff_t *f);
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int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample);
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int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample);
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int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample);
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int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip);
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int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample,
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uint8_t **audio_buffer, uint32_t *bytes);
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int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track,
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uint8_t** ppBuf, uint32_t* pBufSize);
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int32_t mp4ff_total_tracks(const mp4ff_t *f);
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int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track);
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int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track);
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uint32_t mp4ff_meta_genre_to_index(const char * genrestr);//returns 1-based index, 0 if not found
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const char * mp4ff_meta_index_to_genre(uint32_t idx);//returns pointer to static string
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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