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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Dave Chapman
*
* 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.
*
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <inttypes.h>
#include "system.h"
#include "id3.h"
#include "metadata_common.h"
#include "metadata_parsers.h"
#include "structec.h"
#include "logf.h"
/* Read the items in a Vorbis comment packet. Returns true the items were
* fully read, false otherwise.
*/
bool read_vorbis_tags(int fd, struct mp3entry *id3,
long tag_remaining)
{
char *buf = id3->id3v2buf;
int32_t comment_count;
int32_t len;
int buf_remaining = sizeof(id3->id3v2buf) + sizeof(id3->id3v1buf);
int i;
if (ecread(fd, &len, 1, "l", IS_BIG_ENDIAN) < (long) sizeof(len))
{
return false;
}
if ((lseek(fd, len, SEEK_CUR) < 0)
|| (ecread(fd, &comment_count, 1, "l", IS_BIG_ENDIAN)
< (long) sizeof(comment_count)))
{
return false;
}
tag_remaining -= len + sizeof(len) + sizeof(comment_count);
if (tag_remaining <= 0)
{
return true;
}
for (i = 0; i < comment_count; i++)
{
char name[TAG_NAME_LENGTH];
char value[TAG_VALUE_LENGTH];
int32_t read_len;
if (tag_remaining < 4)
{
break;
}
if (ecread(fd, &len, 1, "l", IS_BIG_ENDIAN) < (long) sizeof(len))
{
return false;
}
tag_remaining -= 4;
/* Quit if we've passed the end of the page */
if (tag_remaining < len)
{
break;
}
tag_remaining -= len;
read_len = read_string(fd, name, sizeof(name), '=', len);
if (read_len < 0)
{
return false;
}
len -= read_len;
if (read_string(fd, value, sizeof(value), -1, len) < 0)
{
return false;
}
len = parse_tag(name, value, id3, buf, buf_remaining,
TAGTYPE_VORBIS);
buf += len;
buf_remaining -= len;
}
/* Skip to the end of the block */
if (tag_remaining)
{
if (lseek(fd, tag_remaining, SEEK_CUR) < 0)
{
return false;
}
}
return true;
}
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