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Diffstat (limited to 'mp4ff/mp4ffint.h')
| -rw-r--r-- | mp4ff/mp4ffint.h | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/mp4ff/mp4ffint.h b/mp4ff/mp4ffint.h new file mode 100644 index 000000000..fc13f469d --- /dev/null +++ b/mp4ff/mp4ffint.h @@ -0,0 +1,329 @@ +/* +** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding +** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com +** +** This program 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. +** +** This program 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 this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +** +** Any non-GPL usage of this software or parts of this software is strictly +** forbidden. +** +** Commercial non-GPL licensing of this software is possible. +** For more info contact Ahead Software through Mpeg4AAClicense@nero.com. +** +** $Id: mp4ffint.h,v 1.15 2004/01/14 20:50:22 menno Exp $ +**/ + +#ifndef MP4FF_INTERNAL_H +#define MP4FF_INTERNAL_H + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#include "mp4ff_int_types.h" + + +#ifdef _WIN32 +#define ITUNES_DRM +#endif + + +#define MAX_TRACKS 1024 +#define TRACK_UNKNOWN 0 +#define TRACK_AUDIO 1 +#define TRACK_VIDEO 2 +#define TRACK_SYSTEM 3 + + +#define SUBATOMIC 128 + +/* atoms without subatoms */ +#define ATOM_FTYP 129 +#define ATOM_MDAT 130 +#define ATOM_MVHD 131 +#define ATOM_TKHD 132 +#define ATOM_TREF 133 +#define ATOM_MDHD 134 +#define ATOM_VMHD 135 +#define ATOM_SMHD 136 +#define ATOM_HMHD 137 +#define ATOM_STSD 138 +#define ATOM_STTS 139 +#define ATOM_STSZ 140 +#define ATOM_STZ2 141 +#define ATOM_STCO 142 +#define ATOM_STSC 143 +#define ATOM_MP4A 144 +#define ATOM_MP4V 145 +#define ATOM_MP4S 146 +#define ATOM_ESDS 147 +#define ATOM_META 148 /* iTunes Metadata box */ +#define ATOM_NAME 149 /* iTunes Metadata name box */ +#define ATOM_DATA 150 /* iTunes Metadata data box */ +#define ATOM_CTTS 151 +#define ATOM_FRMA 152 +#define ATOM_IVIV 153 +#define ATOM_PRIV 154 + +#define ATOM_UNKNOWN 255 +#define ATOM_FREE ATOM_UNKNOWN +#define ATOM_SKIP ATOM_UNKNOWN + +/* atoms with subatoms */ +#define ATOM_MOOV 1 +#define ATOM_TRAK 2 +#define ATOM_EDTS 3 +#define ATOM_MDIA 4 +#define ATOM_MINF 5 +#define ATOM_STBL 6 +#define ATOM_UDTA 7 +#define ATOM_ILST 8 /* iTunes Metadata list */ +#define ATOM_TITLE 9 +#define ATOM_ARTIST 10 +#define ATOM_WRITER 11 +#define ATOM_ALBUM 12 +#define ATOM_DATE 13 +#define ATOM_TOOL 14 +#define ATOM_COMMENT 15 +#define ATOM_GENRE1 16 +#define ATOM_TRACK 17 +#define ATOM_DISC 18 +#define ATOM_COMPILATION 19 +#define ATOM_GENRE2 20 +#define ATOM_TEMPO 21 +#define ATOM_COVER 22 +#define ATOM_DRMS 23 +#define ATOM_SINF 24 +#define ATOM_SCHI 25 + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifndef _WIN32 +#define stricmp strcasecmp +#endif + +/* file callback structure */ +typedef struct +{ + uint32_t (*read)(void *user_data, void *buffer, uint32_t length); + uint32_t (*write)(void *udata, void *buffer, uint32_t length); + uint32_t (*seek)(void *user_data, uint64_t position); + uint32_t (*truncate)(void *user_data); + void *user_data; +} mp4ff_callback_t; + + +/* metadata tag structure */ +typedef struct +{ + char *item; + char *value; +} mp4ff_tag_t; + +/* metadata list structure */ +typedef struct +{ + mp4ff_tag_t *tags; + uint32_t count; +} mp4ff_metadata_t; + + +typedef struct +{ + int32_t type; + int32_t channelCount; + int32_t sampleSize; + uint16_t sampleRate; + int32_t audioType; + + /* stsd */ + int32_t stsd_entry_count; + + /* stsz */ + int32_t stsz_sample_size; + int32_t stsz_sample_count; + int32_t *stsz_table; + + /* stts */ + int32_t stts_entry_count; + int32_t *stts_sample_count; + int32_t *stts_sample_delta; + + /* stsc */ + int32_t stsc_entry_count; + int32_t *stsc_first_chunk; + int32_t *stsc_samples_per_chunk; + int32_t *stsc_sample_desc_index; + + /* stsc */ + int32_t stco_entry_count; + int32_t *stco_chunk_offset; + + /* ctts */ + int32_t ctts_entry_count; + int32_t *ctts_sample_count; + int32_t *ctts_sample_offset; + + /* esde */ + uint8_t *decoderConfig; + int32_t decoderConfigLen; + + uint32_t maxBitrate; + uint32_t avgBitrate; + + uint32_t timeScale; + uint64_t duration; + +#ifdef ITUNES_DRM + /* drms */ + void *p_drms; +#endif + +} mp4ff_track_t; + +/* mp4 main file structure */ +typedef struct +{ + /* stream to read from */ + mp4ff_callback_t *stream; + int64_t current_position; + + int32_t moov_read; + uint64_t moov_offset; + uint64_t moov_size; + uint8_t last_atom; + uint64_t file_size; + + /* mvhd */ + int32_t time_scale; + int32_t duration; + + /* incremental track index while reading the file */ + int32_t total_tracks; + + /* track data */ + mp4ff_track_t *track[MAX_TRACKS]; + + /* metadata */ + mp4ff_metadata_t tags; +} mp4ff_t; + + + + +/* mp4util.c */ +int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size); +int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size); +uint64_t mp4ff_read_int64(mp4ff_t *f); +uint32_t mp4ff_read_int32(mp4ff_t *f); +uint32_t mp4ff_read_int24(mp4ff_t *f); +uint16_t mp4ff_read_int16(mp4ff_t *f); +uint8_t mp4ff_read_char(mp4ff_t *f); +int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data); +uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f); +int64_t mp4ff_position(const mp4ff_t *f); +int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position); +int32_t mp4ff_truncate(mp4ff_t * f); +char * mp4ff_read_string(mp4ff_t * f,uint32_t length); + +/* mp4atom.c */ +static int32_t mp4ff_atom_get_size(const int8_t *data); +static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1, + const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2); +static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, const int8_t c, const int8_t d); +uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size); +static int32_t mp4ff_read_stsz(mp4ff_t *f); +static int32_t mp4ff_read_esds(mp4ff_t *f); +static int32_t mp4ff_read_mp4a(mp4ff_t *f); +static int32_t mp4ff_read_stsd(mp4ff_t *f); +static int32_t mp4ff_read_stsc(mp4ff_t *f); +static int32_t mp4ff_read_stco(mp4ff_t *f); +static int32_t mp4ff_read_stts(mp4ff_t *f); +#ifdef USE_TAGGING +static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size); +#endif +int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type); + +/* mp4sample.c */ +static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample, + int32_t *chunk_sample, int32_t *chunk); +static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk); +static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track, + const int32_t chunk_sample, const int32_t sample); +static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample); +int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample); +int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample); + +#ifdef USE_TAGGING +/* mp4meta.c */ +static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value); +static int32_t mp4ff_tag_set_field(mp4ff_metadata_t *tags, const char *item, const char *value); +static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name); +static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size); +static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value); +int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size); +int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags); +int32_t mp4ff_meta_get_num_items(const mp4ff_t *f); +int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index, + char **item, char **value); +int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_writer(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_tool(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_genre(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_track(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_disc(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_compilation(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_tempo(const mp4ff_t *f, char **value); +int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value); +#endif + +/* mp4ff.c */ +mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f); +#ifdef USE_TAGGING +mp4ff_t *mp4ff_open_edit(mp4ff_callback_t *f); +#endif +void mp4ff_close(mp4ff_t *ff); +/*void mp4ff_track_add(mp4ff_t *f);*/ +int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size); +int32_t parse_atoms(mp4ff_t *f); + +int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample); +int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample); +int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample); +int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip); + +int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample, + uint8_t **audio_buffer, uint32_t *bytes); +int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track, + uint8_t** ppBuf, uint32_t* pBufSize); +int32_t mp4ff_total_tracks(const mp4ff_t *f); +int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track); +int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track); + +uint32_t mp4ff_meta_genre_to_index(const char * genrestr);//returns 1-based index, 0 if not found +const char * mp4ff_meta_index_to_genre(uint32_t idx);//returns pointer to static string + + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif |