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|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Dave Chapman
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "string-extra.h"
#include "platform.h"
#include "debug.h"
#include "logf.h"
#include "metadata.h"
#include "metadata_parsers.h"
/* For trailing tag stripping and base audio data types */
#include "buffering.h"
#include "metadata/metadata_common.h"
static bool get_shn_metadata(int fd, struct mp3entry *id3)
{
/* TODO: read the id3v2 header if it exists */
id3->vbr = true;
id3->filesize = filesize(fd);
return skip_id3v2(fd, id3);
}
static bool get_other_asap_metadata(int fd, struct mp3entry *id3)
{
id3->bitrate = 706;
id3->frequency = 44100;
id3->vbr = false;
id3->filesize = filesize(fd);
id3->genre_string = id3_get_num_genre(36);
return true;
}
bool write_metadata_log = false;
const struct afmt_entry audio_formats[AFMT_NUM_CODECS] =
{
/* Unknown file format */
[0 ... AFMT_NUM_CODECS-1] =
AFMT_ENTRY("???", NULL, NULL, NULL, "\0" ),
/* MPEG Audio layer 2 */
[AFMT_MPA_L2] =
AFMT_ENTRY("MP2", "mpa", NULL, get_mp3_metadata, "mpa\0mp2\0"),
/* MPEG Audio layer 3 */
[AFMT_MPA_L3] =
AFMT_ENTRY("MP3", "mpa", "mp3_enc", get_mp3_metadata, "mp3\0"),
/* MPEG Audio layer 1 */
[AFMT_MPA_L1] =
AFMT_ENTRY("MP1", "mpa", NULL, get_mp3_metadata, "mp1\0"),
/* Audio Interchange File Format */
[AFMT_AIFF] =
AFMT_ENTRY("AIFF", "aiff", "aiff_enc", get_aiff_metadata, "aiff\0aif\0"),
/* Uncompressed PCM in a WAV file OR ATRAC3 stream in WAV file (.at3) */
[AFMT_PCM_WAV] =
AFMT_ENTRY("WAV", "wav", "wav_enc", get_wave_metadata, "wav\0at3\0"),
/* Ogg Vorbis */
[AFMT_OGG_VORBIS] =
AFMT_ENTRY("Ogg", "vorbis", NULL, get_ogg_metadata, "ogg\0oga\0"),
/* FLAC */
[AFMT_FLAC] =
AFMT_ENTRY("FLAC", "flac", NULL, get_flac_metadata, "flac\0"),
/* Musepack SV7 */
[AFMT_MPC_SV7] =
AFMT_ENTRY("MPCv7", "mpc", NULL, get_musepack_metadata,"mpc\0"),
/* A/52 (aka AC3) audio */
[AFMT_A52] =
AFMT_ENTRY("AC3", "a52", NULL, get_a52_metadata, "a52\0ac3\0"),
/* WavPack */
[AFMT_WAVPACK] =
AFMT_ENTRY("WV","wavpack","wavpack_enc",get_wavpack_metadata,"wv\0"),
/* Apple Lossless Audio Codec */
[AFMT_MP4_ALAC] =
AFMT_ENTRY("ALAC", "alac", NULL, get_mp4_metadata, "m4a\0m4b\0"),
/* Advanced Audio Coding in M4A container */
[AFMT_MP4_AAC] =
AFMT_ENTRY("AAC", "aac", NULL, get_mp4_metadata, "mp4\0"),
/* Shorten */
[AFMT_SHN] =
AFMT_ENTRY("SHN","shorten", NULL, get_shn_metadata, "shn\0"),
/* SID File Format */
[AFMT_SID] =
AFMT_ENTRY("SID", "sid", NULL, get_sid_metadata, "sid\0"),
/* ADX File Format */
[AFMT_ADX] =
AFMT_ENTRY("ADX", "adx", NULL, get_adx_metadata, "adx\0"),
/* NESM (NES Sound Format) */
[AFMT_NSF] =
AFMT_ENTRY("NSF", "nsf", NULL, get_nsf_metadata, "nsf\0nsfe\0"),
/* Speex File Format */
[AFMT_SPEEX] =
AFMT_ENTRY("Speex", "speex",NULL, get_ogg_metadata, "spx\0"),
/* SPC700 Save State */
[AFMT_SPC] =
AFMT_ENTRY("SPC", "spc", NULL, get_spc_metadata, "spc\0"),
/* APE (Monkey's Audio) */
[AFMT_APE] =
AFMT_ENTRY("APE", "ape", NULL, get_monkeys_metadata,"ape\0mac\0"),
/* WMA (WMAV1/V2 in ASF) */
[AFMT_WMA] =
AFMT_ENTRY("WMA", "wma", NULL, get_asf_metadata,"wma\0wmv\0asf\0"),
/* WMA Professional in ASF */
[AFMT_WMAPRO] =
AFMT_ENTRY("WMAPro","wmapro",NULL, NULL, "wma\0wmv\0asf\0"),
/* Amiga MOD File */
[AFMT_MOD] =
AFMT_ENTRY("MOD", "mod", NULL, get_mod_metadata, "mod\0"),
/* Atari SAP File */
[AFMT_SAP] =
AFMT_ENTRY("SAP", "asap", NULL, get_asap_metadata, "sap\0"),
/* Cook in RM/RA */
[AFMT_RM_COOK] =
AFMT_ENTRY("Cook", "cook", NULL, get_rm_metadata,"rm\0ra\0rmvb\0"),
/* AAC in RM/RA */
[AFMT_RM_AAC] =
AFMT_ENTRY("RAAC", "raac", NULL, NULL, "rm\0ra\0rmvb\0"),
/* AC3 in RM/RA */
[AFMT_RM_AC3] =
AFMT_ENTRY("AC3", "a52_rm", NULL, NULL, "rm\0ra\0rmvb\0"),
/* ATRAC3 in RM/RA */
[AFMT_RM_ATRAC3] =
AFMT_ENTRY("ATRAC3","atrac3_rm",NULL, NULL, "rm\0ra\0rmvb\0"),
/* Atari CMC File */
[AFMT_CMC] =
AFMT_ENTRY("CMC", "asap", NULL, get_other_asap_metadata,"cmc\0"),
/* Atari CM3 File */
[AFMT_CM3] =
AFMT_ENTRY("CM3", "asap", NULL, get_other_asap_metadata,"cm3\0"),
/* Atari CMR File */
[AFMT_CMR] =
AFMT_ENTRY("CMR", "asap", NULL, get_other_asap_metadata,"cmr\0"),
/* Atari CMS File */
[AFMT_CMS] =
AFMT_ENTRY("CMS", "asap", NULL, get_other_asap_metadata,"cms\0"),
/* Atari DMC File */
[AFMT_DMC] =
AFMT_ENTRY("DMC", "asap", NULL, get_other_asap_metadata,"dmc\0"),
/* Atari DLT File */
[AFMT_DLT] =
AFMT_ENTRY("DLT", "asap", NULL, get_other_asap_metadata,"dlt\0"),
/* Atari MPT File */
[AFMT_MPT] =
AFMT_ENTRY("MPT", "asap", NULL, get_other_asap_metadata,"mpt\0"),
/* Atari MPD File */
[AFMT_MPD] =
AFMT_ENTRY("MPD", "asap", NULL, get_other_asap_metadata,"mpd\0"),
/* Atari RMT File */
[AFMT_RMT] =
AFMT_ENTRY("RMT", "asap", NULL, get_other_asap_metadata,"rmt\0"),
/* Atari TMC File */
[AFMT_TMC] =
AFMT_ENTRY("TMC", "asap", NULL, get_other_asap_metadata,"tmc\0"),
/* Atari TM8 File */
[AFMT_TM8] =
AFMT_ENTRY("TM8", "asap", NULL, get_other_asap_metadata,"tm8\0"),
/* Atari TM2 File */
[AFMT_TM2] =
AFMT_ENTRY("TM2", "asap", NULL, get_other_asap_metadata,"tm2\0"),
/* Atrac3 in Sony OMA Container */
[AFMT_OMA_ATRAC3] =
AFMT_ENTRY("ATRAC3","atrac3_oma",NULL, get_oma_metadata, "oma\0aa3\0"),
/* SMAF (Synthetic music Mobile Application Format) */
[AFMT_SMAF] =
AFMT_ENTRY("SMAF", "smaf", NULL, get_smaf_metadata, "mmf\0"),
/* Sun Audio file */
[AFMT_AU] =
AFMT_ENTRY("AU", "au", NULL, get_au_metadata, "au\0snd\0"),
/* VOX (Dialogic telephony file formats) */
[AFMT_VOX] =
AFMT_ENTRY("VOX", "vox", NULL, get_vox_metadata, "vox\0"),
/* Wave64 */
[AFMT_WAVE64] =
AFMT_ENTRY("WAVE64","wav64",NULL, get_wave64_metadata,"w64\0"),
/* True Audio */
[AFMT_TTA] =
AFMT_ENTRY("TTA", "tta", NULL, get_tta_metadata, "tta\0"),
/* WMA Voice in ASF */
[AFMT_WMAVOICE] =
AFMT_ENTRY("WMAVoice","wmavoice",NULL, NULL, "wma\0wmv\0"),
/* Musepack SV8 */
[AFMT_MPC_SV8] =
AFMT_ENTRY("MPCv8", "mpc", NULL, get_musepack_metadata,"mpc\0"),
/* Advanced Audio Coding High Efficiency in M4A container */
[AFMT_MP4_AAC_HE] =
AFMT_ENTRY("AAC-HE","aac", NULL, get_mp4_metadata, "mp4\0"),
/* AY (ZX Spectrum, Amstrad CPC Sound Format) */
[AFMT_AY] =
AFMT_ENTRY("AY", "ay", NULL, get_ay_metadata, "ay\0"),
/* AY (ZX Spectrum Sound Format) */
#ifdef HAVE_FPU
[AFMT_VTX] =
AFMT_ENTRY("VTX", "vtx", NULL, get_vtx_metadata, "vtx\0"),
#endif
/* GBS (Game Boy Sound Format) */
[AFMT_GBS] =
AFMT_ENTRY("GBS", "gbs", NULL, get_gbs_metadata, "gbs\0"),
/* HES (Hudson Entertainment System Sound Format) */
[AFMT_HES] =
AFMT_ENTRY("HES", "hes", NULL, get_hes_metadata, "hes\0"),
/* SGC (Sega Master System, Game Gear, Coleco Vision Sound Format) */
[AFMT_SGC] =
AFMT_ENTRY("SGC", "sgc", NULL, get_sgc_metadata, "sgc\0"),
/* VGM (Video Game Music Format) */
[AFMT_VGM] =
AFMT_ENTRY("VGM", "vgm", NULL, get_vgm_metadata, "vgm\0vgz\0"),
/* KSS (MSX computer KSS Music File) */
[AFMT_KSS] =
AFMT_ENTRY("KSS", "kss", NULL, get_kss_metadata, "kss\0"),
/* Opus */
[AFMT_OPUS] =
AFMT_ENTRY("Opus", "opus", NULL, get_ogg_metadata, "opus\0"),
/* AAC bitstream format */
[AFMT_AAC_BSF] =
AFMT_ENTRY("AAC", "aac_bsf", NULL, get_aac_metadata, "aac\0"),
};
#if defined (HAVE_RECORDING)
/* get REC_FORMAT_* corresponding AFMT_* */
const int rec_format_afmt[REC_NUM_FORMATS] =
{
/* give AFMT_UNKNOWN by default */
[0 ... REC_NUM_FORMATS-1] = AFMT_UNKNOWN,
/* add new entries below this line */
[REC_FORMAT_AIFF] = AFMT_AIFF,
[REC_FORMAT_MPA_L3] = AFMT_MPA_L3,
[REC_FORMAT_WAVPACK] = AFMT_WAVPACK,
[REC_FORMAT_PCM_WAV] = AFMT_PCM_WAV,
};
#if 0 /* Currently unused, left for reference and future use */
/* get AFMT_* corresponding REC_FORMAT_* */
const int afmt_rec_format[AFMT_NUM_CODECS] =
{
/* give -1 by default */
[0 ... AFMT_NUM_CODECS-1] = -1,
/* add new entries below this line */
[AFMT_AIFF] = REC_FORMAT_AIFF,
[AFMT_MPA_L3] = REC_FORMAT_MPA_L3,
[AFMT_WAVPACK] = REC_FORMAT_WAVPACK,
[AFMT_PCM_WAV] = REC_FORMAT_PCM_WAV,
};
#endif
#endif /* defined (HAVE_RECORDING) */
/* Get the canonical AFMT type */
int get_audio_base_codec_type(int type)
{
int base_type = type;
switch (type) {
case AFMT_MPA_L1:
case AFMT_MPA_L2:
case AFMT_MPA_L3:
base_type = AFMT_MPA_L3;
break;
case AFMT_MPC_SV7:
case AFMT_MPC_SV8:
base_type = AFMT_MPC_SV7;
break;
case AFMT_MP4_AAC:
case AFMT_MP4_AAC_HE:
base_type = AFMT_MP4_AAC;
break;
case AFMT_SAP:
case AFMT_CMC:
case AFMT_CM3:
case AFMT_CMR:
case AFMT_CMS:
case AFMT_DMC:
case AFMT_DLT:
case AFMT_MPT:
case AFMT_MPD:
case AFMT_RMT:
case AFMT_TMC:
case AFMT_TM8:
case AFMT_TM2:
base_type = AFMT_SAP;
break;
default:
break;
}
return base_type;
}
const char * get_codec_string(int type)
{
if (type < 0 || type >= AFMT_NUM_CODECS)
type = AFMT_UNKNOWN;
return audio_formats[type].label;
}
/* Get the basic audio type */
bool rbcodec_format_is_atomic(int afmt)
{
if ((unsigned)afmt >= AFMT_NUM_CODECS)
return false;
switch (get_audio_base_codec_type(afmt))
{
case AFMT_NSF:
case AFMT_SPC:
case AFMT_SID:
case AFMT_MOD:
case AFMT_SAP:
case AFMT_AY:
#ifdef HAVE_FPU
case AFMT_VTX:
#endif
case AFMT_GBS:
case AFMT_HES:
case AFMT_SGC:
case AFMT_VGM:
case AFMT_KSS:
/* Type must be allocated and loaded in its entirety onto
the buffer */
return true;
default:
/* Assume type may be loaded and discarded incrementally */
return false;
}
}
/* Is the format allowed to buffer starting at some offset other than 0
or first frame only for resume purposes? */
bool format_buffers_with_offset(int afmt)
{
switch (afmt)
{
case AFMT_MPA_L1:
case AFMT_MPA_L2:
case AFMT_MPA_L3:
case AFMT_WAVPACK:
/* Format may be loaded at the first needed frame */
return true;
default:
/* Format must be loaded from the beginning of the file
(does not imply 'atomic', while 'atomic' implies 'no offset') */
return false;
}
}
/* Simple file type probing by looking at the filename extension. */
unsigned int probe_file_format(const char *filename)
{
char *suffix;
unsigned int i;
suffix = strrchr(filename, '.');
if (suffix == NULL)
{
return AFMT_UNKNOWN;
}
/* skip '.' */
suffix++;
for (i = 1; i < AFMT_NUM_CODECS; i++)
{
/* search extension list for type */
const char *ext = audio_formats[i].ext_list;
do
{
if (strcasecmp(suffix, ext) == 0)
{
return i;
}
ext += strlen(ext) + 1;
}
while (*ext != '\0');
}
return AFMT_UNKNOWN;
}
/* Get metadata for track - return false if parsing showed problems with the
* file that would prevent playback. supply a filedescriptor <0 and the file will be opened
* and closed automatically within the get_metadata call
* get_metadata_ex allows flags to change the way get_metadata behaves
* METADATA_EXCLUDE_ID3_PATH won't copy filename path to the id3 path buffer
* METADATA_CLOSE_FD_ON_EXIT closes the open filedescriptor on exit
*/
bool get_metadata_ex(struct mp3entry* id3, int fd, const char* trackname, int flags)
{
bool success = true;
const struct afmt_entry *entry;
int logfd = 0;
DEBUGF("Read metadata for %s\n", trackname);
if (write_metadata_log)
{
logfd = open("/metadata.log", O_WRONLY | O_APPEND | O_CREAT, 0666);
if (logfd >= 0)
{
write(logfd, trackname, strlen(trackname));
write(logfd, "\n", 1);
close(logfd);
}
}
/* Clear the mp3entry to avoid having bogus pointers appear */
wipe_mp3entry(id3);
if (fd < 0)
{
fd = open(trackname, O_RDONLY);
flags |= METADATA_CLOSE_FD_ON_EXIT;
if (fd < 0)
{
DEBUGF("Error opening %s\n", trackname);
return false; /*Failure*/
}
}
/* Take our best guess at the codec type based on file extension */
id3->codectype = probe_file_format(trackname);
/* default values for embedded cuesheets */
id3->has_embedded_cuesheet = false;
id3->embedded_cuesheet.pos = 0;
entry = &audio_formats[id3->codectype];
/* Load codec specific track tag information and confirm the codec type. */
if (!entry->parse_func)
{
DEBUGF("nothing to parse for %s (format %s)\n", trackname, entry->label);
success = false;
}
else if (!entry->parse_func(fd, id3))
{
DEBUGF("parsing %s failed (format: %s)\n", trackname, entry->label);
success = false;
wipe_mp3entry(id3); /* ensure the mp3entry is clear */
}
if ((flags & METADATA_CLOSE_FD_ON_EXIT))
close(fd);
else
lseek(fd, 0, SEEK_SET);
if (success && (flags & METADATA_EXCLUDE_ID3_PATH) == 0)
{
strlcpy(id3->path, trackname, sizeof(id3->path));
}
/* have we successfully read the metadata from the file? */
return success;
}
bool get_metadata(struct mp3entry* id3, int fd, const char* trackname)
{
return get_metadata_ex(id3, fd, trackname, 0);
}
#define MOVE_ENTRY(x) if (x) x += offset;
void adjust_mp3entry(struct mp3entry *entry, void *dest, const void *orig)
{
long offset;
if (orig > dest)
offset = -((size_t)orig - (size_t)dest);
else
offset = ((size_t)dest - (size_t)orig);
MOVE_ENTRY(entry->title)
MOVE_ENTRY(entry->artist)
MOVE_ENTRY(entry->album)
if (entry->genre_string > (char*)orig &&
entry->genre_string < (char*)orig + sizeof(struct mp3entry))
/* Don't adjust that if it points to an entry of the "genres" array */
entry->genre_string += offset;
MOVE_ENTRY(entry->track_string)
MOVE_ENTRY(entry->disc_string)
MOVE_ENTRY(entry->year_string)
MOVE_ENTRY(entry->composer)
MOVE_ENTRY(entry->comment)
MOVE_ENTRY(entry->albumartist)
MOVE_ENTRY(entry->grouping)
MOVE_ENTRY(entry->mb_track_id)
}
void copy_mp3entry(struct mp3entry *dest, const struct mp3entry *orig)
{
memcpy(dest, orig, sizeof(struct mp3entry));
adjust_mp3entry(dest, dest, orig);
}
/* A shortcut to simplify the common task of clearing the struct */
void wipe_mp3entry(struct mp3entry *id3)
{
memset(id3, 0, sizeof (struct mp3entry));
}
/* Glean what is possible from the filename alone - does not parse metadata */
void fill_metadata_from_path(struct mp3entry *id3, const char *trackname)
{
char *p;
/* Clear the mp3entry to avoid having bogus pointers appear */
wipe_mp3entry(id3);
/* Find the filename portion of the path */
p = strrchr(trackname, '/');
strlcpy(id3->id3v2buf, p ? ++p : id3->path, ID3V2_BUF_SIZE);
/* Get the format from the extension and trim it off */
p = strrchr(id3->id3v2buf, '.');
if (p)
{
/* Might be wrong for container formats - should we bother? */
id3->codectype = probe_file_format(p);
if (id3->codectype != AFMT_UNKNOWN)
*p = '\0';
}
/* Set the filename as the title */
id3->title = id3->id3v2buf;
/* Copy the path info */
strlcpy(id3->path, trackname, sizeof (id3->path));
}
|