6a92e475ac
This should make it easy to use a buffer handle to put the ID3 data in. The changes in get_metadata are mostly search and replace. The only thing it actually used to do on the struct track_info was set taginfo_ready to true. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14326 a1c6a512-1295-4272-9138-f99709370657
322 lines
7.8 KiB
C
322 lines
7.8 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) 2005 Dave Chapman
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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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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include "system.h"
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#include "playback.h"
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#include "debug.h"
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#include "logf.h"
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#include "cuesheet.h"
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#if CONFIG_CODEC == SWCODEC
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#include "metadata/metadata_common.h"
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#include "metadata/metadata_parsers.h"
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static const unsigned short a52_bitrates[] =
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{
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32, 40, 48, 56, 64, 80, 96, 112, 128, 160,
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192, 224, 256, 320, 384, 448, 512, 576, 640
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};
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/* Only store frame sizes for 44.1KHz - others are simply multiples
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of the bitrate */
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static const unsigned short a52_441framesizes[] =
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{
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69 * 2, 70 * 2, 87 * 2, 88 * 2, 104 * 2, 105 * 2, 121 * 2,
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122 * 2, 139 * 2, 140 * 2, 174 * 2, 175 * 2, 208 * 2, 209 * 2,
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243 * 2, 244 * 2, 278 * 2, 279 * 2, 348 * 2, 349 * 2, 417 * 2,
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418 * 2, 487 * 2, 488 * 2, 557 * 2, 558 * 2, 696 * 2, 697 * 2,
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835 * 2, 836 * 2, 975 * 2, 976 * 2, 1114 * 2, 1115 * 2, 1253 * 2,
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1254 * 2, 1393 * 2, 1394 * 2
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};
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#endif /* CONFIG_CODEC == SWCODEC */
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/* Simple file type probing by looking at the filename extension. */
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unsigned int probe_file_format(const char *filename)
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{
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char *suffix;
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unsigned int i;
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suffix = strrchr(filename, '.');
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if (suffix == NULL)
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{
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return AFMT_UNKNOWN;
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}
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/* skip '.' */
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suffix++;
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for (i = 1; i < AFMT_NUM_CODECS; i++)
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{
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/* search extension list for type */
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const char *ext = audio_formats[i].ext_list;
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do
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{
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if (strcasecmp(suffix, ext) == 0)
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{
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return i;
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}
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ext += strlen(ext) + 1;
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}
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while (*ext != '\0');
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}
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return AFMT_UNKNOWN;
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}
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/* Get metadata for track - return false if parsing showed problems with the
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* file that would prevent playback.
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*/
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bool get_metadata(struct mp3entry* id3, int fd, const char* trackname,
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bool v1first)
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{
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#if CONFIG_CODEC == SWCODEC
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unsigned char* buf;
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unsigned long totalsamples;
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int i;
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#endif
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/* Take our best guess at the codec type based on file extension */
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id3->codectype = probe_file_format(trackname);
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/* Load codec specific track tag information and confirm the codec type. */
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switch (id3->codectype)
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{
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case AFMT_MPA_L1:
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case AFMT_MPA_L2:
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case AFMT_MPA_L3:
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if (!get_mp3_metadata(fd, id3, trackname, v1first))
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{
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return false;
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}
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break;
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#if CONFIG_CODEC == SWCODEC
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case AFMT_FLAC:
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if (!get_flac_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_WMA:
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if (!get_asf_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_APE:
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if (!get_monkeys_metadata(fd, id3))
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{
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return false;
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}
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read_ape_tags(fd, id3);
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break;
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case AFMT_MPC:
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if (!get_musepack_metadata(fd, id3))
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return false;
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read_ape_tags(fd, id3);
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break;
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case AFMT_OGG_VORBIS:
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if (!get_vorbis_metadata(fd, id3))/*detects and handles Ogg/Speex files*/
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{
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return false;
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}
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break;
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case AFMT_SPEEX:
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if (!get_speex_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_PCM_WAV:
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if (!get_wave_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_WAVPACK:
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if (!get_wavpack_metadata(fd, id3))
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return false;
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read_ape_tags(fd, id3); /* use any apetag info we find */
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break;
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case AFMT_A52:
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/* Use the trackname part of the id3 structure as a temporary buffer */
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buf = (unsigned char *)id3->path;
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if ((lseek(fd, 0, SEEK_SET) < 0) || (read(fd, buf, 5) < 5))
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{
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return false;
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}
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if ((buf[0] != 0x0b) || (buf[1] != 0x77))
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{
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logf("%s is not an A52/AC3 file\n",trackname);
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return false;
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}
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i = buf[4] & 0x3e;
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if (i > 36)
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{
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logf("A52: Invalid frmsizecod: %d\n",i);
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return false;
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}
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id3->bitrate = a52_bitrates[i >> 1];
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id3->vbr = false;
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id3->filesize = filesize(fd);
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switch (buf[4] & 0xc0)
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{
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case 0x00:
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id3->frequency = 48000;
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id3->bytesperframe=id3->bitrate * 2 * 2;
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break;
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case 0x40:
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id3->frequency = 44100;
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id3->bytesperframe = a52_441framesizes[i];
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break;
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case 0x80:
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id3->frequency = 32000;
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id3->bytesperframe = id3->bitrate * 3 * 2;
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break;
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default:
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logf("A52: Invalid samplerate code: 0x%02x\n", buf[4] & 0xc0);
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return false;
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break;
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}
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/* One A52 frame contains 6 blocks, each containing 256 samples */
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totalsamples = id3->filesize / id3->bytesperframe * 6 * 256;
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id3->length = totalsamples / id3->frequency * 1000;
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break;
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case AFMT_ALAC:
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case AFMT_AAC:
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if (!get_mp4_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_SHN:
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id3->vbr = true;
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id3->filesize = filesize(fd);
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if (!skip_id3v2(fd, id3))
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{
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return false;
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}
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/* TODO: read the id3v2 header if it exists */
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break;
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case AFMT_SID:
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if (!get_sid_metadata(fd, id3))
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{
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return false;
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}
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break;
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case AFMT_SPC:
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if(!get_spc_metadata(fd, id3))
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{
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DEBUGF("get_spc_metadata error\n");
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}
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id3->filesize = filesize(fd);
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id3->genre_string = id3_get_num_genre(36);
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break;
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case AFMT_ADX:
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if (!get_adx_metadata(fd, id3))
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{
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DEBUGF("get_adx_metadata error\n");
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return false;
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}
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break;
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case AFMT_NSF:
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buf = (unsigned char *)id3->path;
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if ((lseek(fd, 0, SEEK_SET) < 0) || ((read(fd, buf, 8)) < 8))
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{
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DEBUGF("lseek or read failed\n");
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return false;
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}
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id3->vbr = false;
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id3->filesize = filesize(fd);
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if (memcmp(buf,"NESM",4) && memcmp(buf,"NSFE",4)) return false;
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break;
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case AFMT_AIFF:
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if (!get_aiff_metadata(fd, id3))
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{
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return false;
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}
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break;
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#endif /* CONFIG_CODEC == SWCODEC */
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default:
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/* If we don't know how to read the metadata, assume we can't play
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the file */
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return false;
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break;
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}
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/* We have successfully read the metadata from the file */
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#ifndef __PCTOOL__
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if (cuesheet_is_enabled() && look_for_cuesheet_file(trackname, NULL))
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{
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id3->cuesheet_type = 1;
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}
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#endif
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lseek(fd, 0, SEEK_SET);
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strncpy(id3->path, trackname, sizeof(id3->path));
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return true;
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}
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