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small idsp fixes

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git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@726 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
This commit is contained in:
manakoAT 2010-01-21 19:25:50 +00:00
parent 2f60a76e8a
commit b4ce515213
1 changed files with 40 additions and 47 deletions
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87
src/meta/idsp.c
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@ -80,14 +80,17 @@ fail:
/* IDSP (Soul Calibur Legends Wii) */
/* "idsp/IDSP"
Soul Calibur Legends (Wii)
Sky Crawlers: Innocent Aces (Wii)
*/
VGMSTREAM * init_vgmstream_idsp2(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset;
int loop_flag;
int channel_count;
int i;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
@ -96,7 +99,7 @@ VGMSTREAM * init_vgmstream_idsp2(STREAMFILE *streamFile) {
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x69647370 || /* "idsp" */
read_32bitBE(0xBC,streamFile) != 0x49445350) /* IDSP */
goto fail;
goto fail;
loop_flag = read_32bitBE(0x20,streamFile);
channel_count = read_32bitBE(0xC4,streamFile);
@ -106,62 +109,52 @@ VGMSTREAM * init_vgmstream_idsp2(STREAMFILE *streamFile) {
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = 0x1C0;
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0xC8,streamFile);
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->num_samples = (read_32bitBE(0x14,streamFile))*14/8/channel_count;
start_offset = (channel_count * 0x60) + 0x100;
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0xC8,streamFile);
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->num_samples = (read_32bitBE(0x14,streamFile))*14/8/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = (read_32bitBE(0xD0,streamFile));
vgmstream->loop_end_sample = (read_32bitBE(0xD4,streamFile));
}
switch (read_32bitBE(0xD8,streamFile)) {
case 0x00:
vgmstream->layout_type = layout_none;
vgmstream->interleave_block_size = (get_streamfile_size(streamFile)-start_offset)/2;
break;
case 0x10:
if (channel_count == 1) {
vgmstream->layout_type = layout_none;
} else if (channel_count > 1) {
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitBE(0xD8,streamFile);
break;
vgmstream->interleave_block_size = read_32bitBE(0xD8,streamFile);
}
vgmstream->meta_type = meta_IDSP2;
{
if (vgmstream->coding_type == coding_NGC_DSP) {
for (i=0;i<16;i++)
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x118+i*2,streamFile);
}
if (channel_count == 2) {
for (i=0;i<16;i++)
vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x178+i*2,streamFile);
}
}
if (vgmstream->coding_type == coding_NGC_DSP) {
int i;
for (i=0;i<16;i++) {
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x118+i*2,streamFile);
}
if (vgmstream->channels) {
for (i=0;i<16;i++) {
vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x178+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;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=start_offset+
vgmstream->interleave_block_size*i;
}
}
/* 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;