rockbox/lib/rbcodec/metadata/sid.c
Aidan MacDonald 3a57f2f721 Add "rbfs" prefix to native filesystem functions
Most of the churn here occurs because 'filesize' is one of
the redefined filesystem functions, but some of the structs
used by the native FS code also include a 'filesize' member
variable which gets renamed by the macro in some but not all
source files.

It's easier to rename 'filesize()' to 'ffilesize()' rather
than try to clean up the macro mess or renaming the struct
members.

There is weirdness with root_realpath() which now breaks on
native builds because it was assumed to be unprefixed there.
dir_get_info() was unprefixed everywhere but this just seems
inconsistent; make it follow the FS_PREFIX() convention too.

Change-Id: Ic3700c6234ea45f32679c1a8429d70fdb8f4088a
2026-09-17 16:22:31 -04:00

88 lines
2.8 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* 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 && memcmp(buf, "RSID", 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 = ffilesize(fd);
return true;
}