rockbox/lib/rbcodec/metadata/kss.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

53 lines
1.3 KiB
C

#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"
static bool parse_kss_header(int fd, struct mp3entry* id3)
{
/* Use the trackname part of the id3 structure as a temporary buffer */
unsigned char* buf = (unsigned char *)id3->path;
lseek(fd, 0, SEEK_SET);
if (read(fd, buf, 0x20) < 0x20)
return false;
/* calculate track length with number of tracks */
id3->length = 0;
if (buf[14] == 0x10) {
id3->length = (get_short_le((void *)(buf + 26)) + 1) * 1000;
}
if (id3->length <= 0)
id3->length = 255 * 1000; /* 255 tracks */
return true;
}
bool get_kss_metadata(int fd, struct mp3entry* id3)
{
uint32_t kss_type;
if ((lseek(fd, 0, SEEK_SET) < 0) ||
read_uint32be(fd, &kss_type) != (int)sizeof(kss_type))
return false;
id3->vbr = false;
id3->filesize = filesize(fd);
/* we only render 16 bits, 44.1KHz, Stereo */
id3->bitrate = 706;
id3->frequency = 44100;
/* Make sure this is an SGC file */
if (kss_type != FOURCC('K','S','C','C') && kss_type != FOURCC('K','S','S','X'))
return false;
return parse_kss_header(fd, id3);
}