vgmstream/src/meta/ps3_vawx.c
2011-01-17 22:16:05 +00:00

80 lines
2.1 KiB
C

#include "meta.h"
#include "../util.h"
/* VAWX
- No More Heroes: Heroes Paradise (PS3)
*/
VGMSTREAM * init_vgmstream_ps3_vawx(STREAMFILE *streamFile)
{
VGMSTREAM * vgmstream = NULL;
char filename[260];
size_t fileLength;
off_t readOffset = 0;
off_t start_offset;
int loop_flag = 0;
int channel_count;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("vawx",filename_extension(filename))) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x56415758) // "VAWX"
goto fail;
if (read_8bit(0xF,streamFile) == 2)
{
loop_flag = 1;
}
channel_count = read_8bit(0x39,streamFile);;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = 0x800;
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0x40,streamFile);
vgmstream->coding_type = coding_PSX;
vgmstream->num_samples = ((get_streamfile_size(streamFile)-start_offset)/16/channel_count*28);
if (loop_flag)
{
vgmstream->loop_start_sample = read_32bitBE(0x44,streamFile);
vgmstream->loop_end_sample = read_32bitBE(0x48,streamFile);;
}
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
vgmstream->meta_type = meta_PS3_VAWX;
/* open the file for reading */
{
int i;
STREAMFILE * file;
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
for (i=0;i<channel_count;i++)
{
vgmstream->ch[i].streamfile = file;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=start_offset + (vgmstream->interleave_block_size * i);
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}