dda538a7f3
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11584 a1c6a512-1295-4272-9138-f99709370657
226 lines
7 KiB
C
226 lines
7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Daniel Stenberg
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef ID3_H
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#define ID3_H
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#include <stdbool.h>
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#include "config.h"
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#include "file.h"
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/* Audio file types. */
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enum
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{
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AFMT_UNKNOWN = 0, /* Unknown file format */
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/* start formats */
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AFMT_MPA_L1, /* MPEG Audio layer 1 */
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AFMT_MPA_L2, /* MPEG Audio layer 2 */
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AFMT_MPA_L3, /* MPEG Audio layer 3 */
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#if CONFIG_CODEC == SWCODEC
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AFMT_AIFF, /* Audio Interchange File Format */
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AFMT_PCM_WAV, /* Uncompressed PCM in a WAV file */
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AFMT_OGG_VORBIS, /* Ogg Vorbis */
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AFMT_FLAC, /* FLAC */
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AFMT_MPC, /* Musepack */
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AFMT_A52, /* A/52 (aka AC3) audio */
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AFMT_WAVPACK, /* WavPack */
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AFMT_ALAC, /* Apple Lossless Audio Codec */
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AFMT_AAC, /* Advanced Audio Coding (AAC) in M4A container */
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AFMT_SHN, /* Shorten */
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AFMT_SID, /* SID File Format */
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AFMT_ADX, /* ADX File Format */
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#endif
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/* add new formats at any index above this line to have a sensible order -
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specified array index inits are used */
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/* format arrays defined in id3.c */
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AFMT_NUM_CODECS,
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#if CONFIG_CODEC == SWCODEC && defined(HAVE_RECORDING)
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/* masks to decompose parts */
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CODEC_AFMT_MASK = 0x0fff,
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CODEC_TYPE_MASK = 0x7000,
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/* switch for specifying codec type when requesting a filename */
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CODEC_TYPE_DECODER = (0 << 12), /* default */
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CODEC_TYPE_ENCODER = (1 << 12),
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#endif /* CONFIG_CODEC == SWCODEC && defined(HAVE_RECORDING) */
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};
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#if CONFIG_CODEC == SWCODEC
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#define CODEC_EXTENSION "codec"
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#ifdef HAVE_RECORDING
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#define ENCODER_SUFFIX "_enc"
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enum rec_format_indexes
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{
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__REC_FORMAT_START_INDEX = -1,
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/* start formats */
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REC_FORMAT_PCM_WAV,
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REC_FORMAT_AIFF,
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REC_FORMAT_WAVPACK,
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REC_FORMAT_MPA_L3,
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/* add new formats at any index above this line to have a sensible order -
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specified array index inits are used
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REC_FORMAT_CFG_NUM_BITS should allocate enough bits to hold the range
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REC_FORMAT_CFG_VALUE_LIST should be in same order as indexes
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*/
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REC_NUM_FORMATS,
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REC_FORMAT_DEFAULT = REC_FORMAT_PCM_WAV,
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REC_FORMAT_CFG_NUM_BITS = 2
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};
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#define REC_FORMAT_CFG_VAL_LIST "wave,aiff,wvpk,mpa3"
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/* get REC_FORMAT_* corresponding AFMT_* */
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extern const int rec_format_afmt[REC_NUM_FORMATS];
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/* get AFMT_* corresponding REC_FORMAT_* */
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extern const int afmt_rec_format[AFMT_NUM_CODECS];
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#define AFMT_ENTRY(label, root_fname, enc_root_fname, ext_list) \
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{ label, root_fname, enc_root_fname, ext_list }
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#else /* !HAVE_RECORDING */
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#define AFMT_ENTRY(label, root_fname, enc_root_fname, ext_list) \
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{ label, root_fname, ext_list }
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#endif /* HAVE_RECORDING */
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#else /* !SWCODEC */
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#define AFMT_ENTRY(label, root_fname, enc_root_fname, ext_list) \
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{ label, ext_list }
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#endif /* CONFIG_CODEC == SWCODEC */
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/* record describing the audio format */
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struct afmt_entry
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{
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char label[8]; /* format label */
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#if CONFIG_CODEC == SWCODEC
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char *codec_root_fn; /* root codec filename (sans _enc and .codec) */
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#ifdef HAVE_RECORDING
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char *codec_enc_root_fn; /* filename of encoder codec */
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#endif
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#endif
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char *ext_list; /* double NULL terminated extension
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list for type with the first as
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the default for recording */
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};
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/* database of labels and codecs. add formats per above enum */
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extern const struct afmt_entry audio_formats[AFMT_NUM_CODECS];
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struct mp3entry {
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char path[MAX_PATH];
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char* title;
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char* artist;
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char* album;
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char* genre_string;
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char* track_string;
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char* year_string;
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char* composer;
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int tracknum;
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int version;
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int layer;
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int year;
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unsigned char id3version;
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unsigned char genre;
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unsigned int codectype;
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unsigned int bitrate;
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unsigned long frequency;
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unsigned long id3v2len;
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unsigned long id3v1len;
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unsigned long first_frame_offset; /* Byte offset to first real MP3 frame.
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Used for skipping leading garbage to
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avoid gaps between tracks. */
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unsigned long vbr_header_pos;
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unsigned long filesize; /* without headers; in bytes */
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unsigned long length; /* song length in ms */
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unsigned long elapsed; /* ms played */
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int lead_trim; /* Number of samples to skip at the beginning */
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int tail_trim; /* Number of samples to remove from the end */
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/* Added for Vorbis */
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unsigned long samples; /* number of samples in track */
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/* MP3 stream specific info */
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unsigned long frame_count; /* number of frames in the file (if VBR) */
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/* Used for A52/AC3 */
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unsigned long bytesperframe; /* number of bytes per frame (if CBR) */
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/* Xing VBR fields */
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bool vbr;
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bool has_toc; /* True if there is a VBR header in the file */
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unsigned char toc[100]; /* table of contents */
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/* these following two fields are used for local buffering */
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char id3v2buf[300];
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char id3v1buf[3][92];
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/* resume related */
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unsigned long offset; /* bytes played */
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int index; /* playlist index */
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/* FileEntry fields */
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long fileentryoffset;
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long filehash;
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long songentryoffset;
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long rundbentryoffset;
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/* runtime database fields */
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short rating;
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long playcount;
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long lastplayed;
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/* replaygain support */
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#if CONFIG_CODEC == SWCODEC
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char* track_gain_string;
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char* album_gain_string;
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long track_gain; /* 7.24 signed fixed point. 0 for no gain. */
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long album_gain;
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long track_peak; /* 7.24 signed fixed point. 0 for no peak. */
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long album_peak;
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#endif
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};
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enum {
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ID3_VER_1_0 = 1,
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ID3_VER_1_1,
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ID3_VER_2_2,
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ID3_VER_2_3,
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ID3_VER_2_4
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};
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bool get_mp3_metadata(int fd, struct mp3entry *entry, const char *filename, bool v1first);
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bool mp3info(struct mp3entry *entry, const char *filename, bool v1first);
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char* id3_get_genre(const struct mp3entry* id3);
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char* id3_get_codec(const struct mp3entry* id3);
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int getid3v2len(int fd);
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void adjust_mp3entry(struct mp3entry *entry, void *dest, void *orig);
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void copy_mp3entry(struct mp3entry *dest, struct mp3entry *orig);
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#endif
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