vgmstream/src/meta/fsb_test.c

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#include "meta.h"
#include "../util.h"
/* FSB3.0 */
VGMSTREAM * init_vgmstream_fsb3(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
int fsb_headerlen;
int loop_flag;
int channel_count;
off_t start_offset;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("fsb",filename_extension(filename))) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x46534233) goto fail; /* "FSB3" */
/* "Check if the FSB is used as conatiner or as single file" */
if (read_32bitLE(0x04,streamFile) != 0x1) goto fail;
/* Check if we're dealing with a FSB3.1 file */
if ((read_32bitBE(0x10,streamFile) != 0x00000300) &&
(read_32bitBE(0x10,streamFile) != 0x01000300))
goto fail;
loop_flag = 0; // for now...
channel_count = read_16bitLE(0x56,streamFile);
fsb_headerlen = read_32bitLE(0x08,streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
// fsb_format = ;
switch (((uint8_t)read_8bit(0x4A, streamFile)) >> 4) {
case 0x0: // Nintendo DSP
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave_byte;
vgmstream->interleave_block_size = 2;
vgmstream->num_samples = (read_32bitLE(0x0C,streamFile))*14/8/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
vgmstream->loop_end_sample = (read_32bitLE(0x0C,streamFile))*14/8/channel_count;
}
break;
case 0x4: // XBOX IMA ADPCM
vgmstream->coding_type = coding_XBOX;
vgmstream->layout_type = layout_none;
vgmstream->num_samples = read_32bitLE(0x0C,streamFile)*64/36/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
vgmstream->loop_end_sample = read_32bitLE(0x0C,streamFile)*64/36/channel_count;
}
break;
case 0x8: // PS2 APDCM
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
vgmstream->num_samples = (read_32bitLE(0x0C,streamFile))*28/16/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x40,streamFile);
vgmstream->loop_end_sample = (read_32bitLE(0x0C,streamFile))*28/16/channel_count;
}
break;
default:
goto fail;
}
/* fill in the vital statistics */
start_offset = fsb_headerlen+0x18;
vgmstream->sample_rate = (read_32bitLE(0x4C, streamFile));
if (read_32bitBE(0x10,streamFile) == 0x00000300) {
vgmstream->meta_type = meta_FSB3_0;
} else if (read_32bitBE(0x10,streamFile) == 0x01000300) {
vgmstream->meta_type = meta_FSB3_1;
}
if (vgmstream->coding_type == coding_NGC_DSP) {
int i,c;
for (c=0;c<channel_count;c++) {
for (i=0;i<16;i++) {
vgmstream->ch[c].adpcm_coef[i] =
read_16bitBE(0x68+c*0x2e +i*2,streamFile);
}
}
}
/* 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;
if (vgmstream->coding_type == coding_XBOX) {
/* xbox interleaving is a little odd */
vgmstream->ch[i].channel_start_offset=start_offset;
} else {
vgmstream->ch[i].channel_start_offset=
start_offset+vgmstream->interleave_block_size*i;
}
vgmstream->ch[i].offset = vgmstream->ch[i].channel_start_offset;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}