vgmstream/src/meta/ngc_sck_dsp.c

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#include "meta.h"
#include "../util.h"
/*
SCK+DSP
2009-08-25 - manakoAT : Scorpion King (NGC)...
*/
VGMSTREAM * init_vgmstream_ngc_sck_dsp(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * streamFileDSP = NULL;
char filename[PATH_LIMIT];
char filenameDSP[260];
int i;
int channel_count;
int loop_flag;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("sck",filename_extension(filename))) goto fail;
strcpy(filenameDSP,filename);
strcpy(filenameDSP+strlen(filenameDSP)-3,"dsp");
streamFileDSP = streamFile->open(streamFile,filenameDSP,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (read_32bitBE(0x5C,streamFile) != 0x60A94000)
goto fail;
if (!streamFile) goto fail;
channel_count = 2;
loop_flag = 0;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0x18,streamFile);
vgmstream->num_samples=read_32bitBE(0x14,streamFile)/8/channel_count*14;
vgmstream->coding_type = coding_NGC_DSP;
if(loop_flag) {
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = read_32bitBE(0x10,streamFile)/8/channel_count*14;
}
if (channel_count == 1) {
vgmstream->layout_type = layout_none;
} else if (channel_count == 2) {
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size=read_32bitBE(0xC,streamFile);
}
vgmstream->meta_type = meta_NGC_SCK_DSP;
/* open the file for reading */
{
for (i=0;i<channel_count;i++) {
/* Not sure, i'll put a fake value here for now */
vgmstream->ch[i].streamfile = streamFile->open(streamFileDSP,filenameDSP,0x8000);
vgmstream->ch[i].offset = 0;
if (!vgmstream->ch[i].streamfile) goto fail;
}
}
if (vgmstream->coding_type == coding_NGC_DSP) {
int i;
for (i=0;i<16;i++) {
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x2C+i*2,streamFile);
}
if (vgmstream->channels == 2) {
for (i=0;i<16;i++) {
vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x2C+i*2,streamFile);
}
}
}
close_streamfile(streamFileDSP); streamFileDSP=NULL;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (streamFileDSP) close_streamfile(streamFileDSP);
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}