rockbox/lib/rbcodec/metadata/sid.c
Sean Bartell cadb3627fc Add rbcodecplatform.h and rbcodecconfig.h.
librbcodec users must provide these two files when the library is built.
rbcodecconfig.h provides configuration #defines and basic types, and
will be included by public librbcodec headers, so it must not conflict
with the user's code. rbcodecplatform.h provides various OS functions,
and will only be included by source files and private headers. This
system is intended to provide maximum flexibility for use on embedded
systems, where no operating system headers are included. Unix systems
can just copy rbcodecconfig-example.h and rbcodecplatform-unix.h with
minimal changes.

Change-Id: I350a2274d173da391fd1ca00c4202e9760d91def
Reviewed-on: http://gerrit.rockbox.org/143
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
2012-05-03 14:49:35 +02:00

89 lines
2.8 KiB
C

/***************************************************************************
* __________ __ ___.
* 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 <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <inttypes.h>
#include "platform.h"
#include "metadata.h"
#include "metadata_common.h"
#include "metadata_parsers.h"
#include "rbunicode.h"
/* PSID metadata info is available here:
http://www.unusedino.de/ec64/technical/formats/sidplay.html */
bool get_sid_metadata(int fd, struct mp3entry* id3)
{
/* Use the trackname part of the id3 structure as a temporary buffer */
unsigned char* buf = (unsigned char *)id3->path;
char *p;
if ((lseek(fd, 0, SEEK_SET) < 0)
|| (read(fd, buf, 0x80) < 0x80))
{
return false;
}
if ((memcmp(buf, "PSID", 4) != 0))
{
return false;
}
p = id3->id3v2buf;
/* Copy Title (assumed max 0x1f letters + 1 zero byte) */
id3->title = p;
buf[0x16+0x1f] = 0;
p = iso_decode(&buf[0x16], p, 0, strlen(&buf[0x16])+1);
/* Copy Artist (assumed max 0x1f letters + 1 zero byte) */
id3->artist = p;
buf[0x36+0x1f] = 0;
p = iso_decode(&buf[0x36], p, 0, strlen(&buf[0x36])+1);
/* Copy Year (assumed max 4 letters + 1 zero byte) */
buf[0x56+0x4] = 0;
id3->year = atoi(&buf[0x56]);
/* Copy Album (assumed max 0x1f-0x05 letters + 1 zero byte) */
id3->album = p;
buf[0x56+0x1f] = 0;
iso_decode(&buf[0x5b], p, 0, strlen(&buf[0x5b])+1);
id3->bitrate = 706;
id3->frequency = 44100;
/* New idea as posted by Marco Alanen (ravon):
* Set the songlength in seconds to the number of subsongs
* so every second represents a subsong.
* Users can then skip the current subsong by seeking
*
* Note: the number of songs is a 16bit value at 0xE, so this code only
* uses the lower 8 bits of the counter.
*/
id3->length = (buf[0xf]-1)*1000;
id3->vbr = false;
id3->filesize = filesize(fd);
return true;
}