vgmstream/src/meta/lsf.c

48 lines
1.3 KiB
C

#include "meta.h"
#include "../util.h"
/* .lsf - from Atod games [Fastlane Street Racing (iPhone), Chicane Street Racing prototype (Gizmondo)] */
VGMSTREAM * init_vgmstream_lsf_n1nj4n(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset;
int loop_flag, channel_count;
size_t file_size;
/* checks */
if (!check_extensions(streamFile, "lsf"))
goto fail;
if (read_32bitBE(0x00, streamFile) != 0x216E316E || // "!n1n"
read_32bitBE(0x04, streamFile) != 0x6A346E00) // "j4n\0"
goto fail;
file_size = get_streamfile_size(streamFile);
if (read_32bitLE(0x0C, streamFile) + 0x10 != file_size)
goto fail;
loop_flag = 0;
channel_count = 1;
start_offset = 0x10;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count, loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_LSF_N1NJ4N;
vgmstream->sample_rate = read_32bitLE(0x08, streamFile);
vgmstream->num_samples = (file_size-0x10)/0x1c*0x1b*2;
vgmstream->coding_type = coding_LSF;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x1c;
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}