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fix FFXIV 03.scd (ability to skip MARK), some groundwork for Wii DSP ADPCM scd

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git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@982 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
This commit is contained in:
halleyscometsw 2012-08-09 21:42:02 +00:00
parent 747a8a6ba9
commit 8d8a5ab55a
1 changed files with 34 additions and 13 deletions
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47
src/meta/sqex_scd.c
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@ -6,12 +6,13 @@
VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset, meta_offset_offset, meta_offset, size_offset;
off_t start_offset, meta_offset_offset, meta_offset, post_meta_offset, size_offset;
int32_t loop_start, loop_end;
int loop_flag = 0;
int channel_count;
int codec_id;
int aux_chunk_count;
int32_t (*read_32bit)(off_t,STREAMFILE*) = NULL;
int16_t (*read_16bit)(off_t,STREAMFILE*) = NULL;
@ -31,14 +32,14 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
read_32bit = read_32bitBE;
read_16bit = read_16bitBE;
size_offset = 0x14;
meta_offset_offset = 0x70;
meta_offset_offset = 0x40 + read_16bit(0xe,streamFile);
} else if (read_32bitLE(8,streamFile) == 3 ||
read_32bitLE(8,streamFile) == 2) {
/* version 2/3 LE, as seen in FFXIV for ?? */
read_32bit = read_32bitLE;
read_16bit = read_16bitLE;
size_offset = 0x10;
meta_offset_offset = 0x70;
meta_offset_offset = 0x40 + read_16bit(0xe,streamFile);
} else goto fail;
/* never mind, FFXIII music_68tak.ps3.scd is 0x80 shorter */
@ -48,8 +49,7 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
goto fail;
#endif
/* this is probably some kind of chunk offset (?) */
meta_offset = read_32bit(0x70,streamFile);
meta_offset = read_32bit(meta_offset_offset,streamFile);
/* check that chunk size equals stream size (?) */
loop_start = read_32bit(meta_offset+0x10,streamFile);
@ -58,14 +58,28 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
channel_count = read_32bit(meta_offset+4,streamFile);
codec_id = read_32bit(meta_offset+0xc,streamFile);
start_offset = meta_offset + 0x20 + read_32bit(meta_offset+0x18,streamFile);
post_meta_offset = meta_offset + 0x20;
/* data at meta_offset is only 0x20 bytes, but there may be auxiliary chunks
before anything else */
aux_chunk_count = read_32bit(meta_offset+0x1c,streamFile);
for (; aux_chunk_count > 0; aux_chunk_count --)
{
/* skip aux chunks */
/*printf("skipping %08x\n", read_32bitBE(post_meta_offset, streamFile));*/
post_meta_offset += read_32bit(post_meta_offset+4,streamFile);
}
start_offset = post_meta_offset + read_32bit(meta_offset+0x18,streamFile);
#ifdef VGM_USE_VORBIS
if (codec_id == 0x6)
{
vgm_vorbis_info_t inf;
uint32_t seek_table_size = read_32bit(meta_offset+0x30, streamFile);
uint32_t vorb_header_size = read_32bit(meta_offset+0x34, streamFile);
uint32_t seek_table_size = read_32bit(post_meta_offset+0x10, streamFile);
uint32_t vorb_header_size = read_32bit(post_meta_offset+0x14, streamFile);
VGMSTREAM * result = NULL;
memset(&inf, 0, sizeof(inf));
@ -85,20 +99,23 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
// try skipping seek table
{
if (0x20 + seek_table_size + vorb_header_size != read_32bit(meta_offset+0x18, streamFile)) {
if ((post_meta_offset-meta_offset) + seek_table_size + vorb_header_size != read_32bit(meta_offset+0x18, streamFile)) {
return NULL;
}
start_offset = meta_offset + 0x40 + seek_table_size;
start_offset = post_meta_offset + 0x20 + seek_table_size;
result = init_vgmstream_ogg_vorbis_callbacks(streamFile, filename, NULL, start_offset, &inf);
if (result != NULL) {
return result;
}
}
// try deobfuscating header (assume skipping seek table)
// failed with Ogg, try deobfuscating header
{
unsigned char xor_byte = read_8bit(meta_offset+0x22, streamFile);
// skip chunks before xor_byte
unsigned char xor_byte;
xor_byte = read_8bit(post_meta_offset+2, streamFile);
if (xor_byte == 0) {
return NULL;
@ -166,7 +183,7 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
/* MS ADPCM */
vgmstream->coding_type = coding_MSADPCM;
vgmstream->layout_type = layout_none;
vgmstream->interleave_block_size = read_16bit(meta_offset+0x2c,streamFile);
vgmstream->interleave_block_size = read_16bit(post_meta_offset+0xc,streamFile);
vgmstream->num_samples = msadpcm_bytes_to_samples(read_32bit(meta_offset+0,streamFile), vgmstream->interleave_block_size, vgmstream->channels);
if (loop_flag) {
@ -174,6 +191,10 @@ VGMSTREAM * init_vgmstream_sqex_scd(STREAMFILE *streamFile) {
vgmstream->loop_end_sample = msadpcm_bytes_to_samples(loop_end, vgmstream->interleave_block_size, vgmstream->channels);
}
break;
case 0xA:
/* GC/Wii DSP ADPCM */
/* TODO */
goto fail;
default:
goto fail;
}