mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 23:52:53 +01:00
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
#include "meta.h"
|
|
#include "../util.h"
|
|
|
|
/* SVS (from Dai Senryaku VII - Exceed) */
|
|
|
|
VGMSTREAM * init_vgmstream_ps2_ass(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
char filename[PATH_LIMIT];
|
|
off_t start_offset;
|
|
uint8_t testBuffer[0x10];
|
|
off_t loopStart = 0;
|
|
off_t loopEnd = 0;
|
|
off_t readOffset = 0;
|
|
size_t fileLength;
|
|
int loop_flag;
|
|
int channel_count;
|
|
|
|
/* check extension, case insensitive */
|
|
streamFile->get_name(streamFile,filename,sizeof(filename));
|
|
if (strcasecmp("ass",filename_extension(filename))) goto fail;
|
|
|
|
/* check header */
|
|
if (read_32bitBE(0x00,streamFile) != 0x02000000) /* "0x02000000" */
|
|
goto fail;
|
|
|
|
loop_flag = 1;
|
|
channel_count = 2;
|
|
|
|
/* 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_32bitLE(0x04,streamFile);
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->num_samples = (read_32bitLE(0x08,streamFile)*2)*28/16/channel_count;
|
|
|
|
fileLength = get_streamfile_size(streamFile);
|
|
|
|
do {
|
|
|
|
readOffset+=(off_t)read_streamfile(testBuffer,readOffset,0x10,streamFile);
|
|
/* Loop Start */
|
|
if(testBuffer[0x01]==0x06) {
|
|
if(loopStart == 0) loopStart = readOffset-0x10;
|
|
/* break; */
|
|
}
|
|
/* Loop End */
|
|
if(testBuffer[0x01]==0x03) {
|
|
if(loopEnd == 0) loopEnd = readOffset-0x10;
|
|
/* break; */
|
|
}
|
|
} while (streamFile->get_offset(streamFile)<(int32_t)fileLength);
|
|
|
|
if(loopStart == 0) {
|
|
loop_flag = 0;
|
|
vgmstream->num_samples = read_32bitLE(0x4,streamFile)*28/16/channel_count;
|
|
} else {
|
|
loop_flag = 1;
|
|
vgmstream->loop_start_sample = (loopStart-start_offset)*28/16/channel_count;
|
|
vgmstream->loop_end_sample = (loopEnd-start_offset)*28/16/channel_count;
|
|
}
|
|
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile);
|
|
vgmstream->meta_type = meta_PS2_ASS;
|
|
|
|
/* 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;
|
|
}
|