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Fix bug

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This commit is contained in:
lifegpc
2025-08-07 16:31:08 +08:00
parent f9ebe8f597
commit 941b704724
1 changed files with 13 additions and 11 deletions
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24
src/scripts/circus/audio/pcm.rs
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@@ -805,48 +805,50 @@ impl PcmDecoder {
let mut flag = 0;
let mut src = 0;
let mut output = vec![0u8];
let mut dstt = 0;
while src < packed_size {
flag >>= 1;
if (flag & 0x100) == 0 {
flag = input[src] as i32 | 0xFF00;
flag = input[src] as u32 | 0xFF00;
src += 1;
}
if (flag & 1) != 0 {
output.push(input[src]);
src += 1;
dstt += 1;
} else {
if src >= packed_size {
break;
}
let mut offset;
let count;
let ctl = input[src] as i32;
let ctl = input[src] as u32;
src += 1;
if ctl >= 0xc0 {
offset = input[src] as i32 | ((ctl & 3) << 8);
offset = input[src] as u32 | ((ctl & 3) << 8);
src += 1;
count = 4 + ((ctl >> 2) & 0xF);
} else if ctl & 0x80 != 0 {
offset = ctl & 0x1F;
count = 2 + ((ctl >> 5) & 3);
if offset == 0 {
offset = input[src] as i32;
offset = input[src] as u32;
src += 1;
}
} else if ctl == 0x7F {
count = 2 + u16::from_le_bytes([input[src], input[src + 1]]) as i32;
count = 2 + u16::from_le_bytes([input[src], input[src + 1]]) as u32;
src += 2;
offset = u16::from_le_bytes([input[src], input[src + 1]]) as i32;
offset = u16::from_le_bytes([input[src], input[src + 1]]) as u32;
src += 2;
} else {
offset = u16::from_le_bytes([input[src], input[src + 1]]) as i32;
offset = u16::from_le_bytes([input[src], input[src + 1]]) as u32;
src += 2;
count = ctl + 4;
}
let dst = output.len();
offset = dst as i32 - offset;
output.resize(dst + count as usize, 0);
output.copy_overlapped(offset as usize, dst, count as usize);
offset = dstt - offset;
output.resize(dstt as usize + count as usize, 0);
output.copy_overlapped(offset as usize, dstt as usize, count as usize);
dstt += count;
}
}
Ok(output)