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Added interleave detection for VAG variant [Need for Speed: Hot Pursuit 2 (PS2)]

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NicknineTheEagle 2019-11-01 10:28:40 +03:00
parent f26cb71138
commit 30c087ee99
1 changed files with 24 additions and 1 deletions
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25
src/meta/vag.c
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@ -217,9 +217,32 @@ VGMSTREAM * init_vgmstream_vag(STREAMFILE *streamFile) {
/* Need for Speed: Hot Pursuit 2 (PS2) */
start_offset = 0x30;
channel_count = read_32bitBE(0x2c, streamFile);
interleave = 0x8000;
channel_size = channel_size / channel_count;
loop_flag = 0;
/* detect interleave using end markers */
interleave = 0;
if (channel_count > 1) {
off_t offset = file_size;
off_t end_off = 0;
uint8_t flag;
while (1) {
offset -= 0x10;
flag = read_8bit(offset + 0x01, streamFile);
if (flag == 0x01) {
if (!end_off) {
end_off = offset;
} else {
interleave = end_off - offset;
break;
}
}
if (offset == start_offset) goto fail;
}
}
}
else {
/* standard PS1/PS2/PS3 .vag [Ecco the Dolphin (PS2), Legasista (PS3)] */