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