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aacsbr: fix high<->low resolution envelope mapping
[nihav.git]
/
nihav-mpeg
/
src
/
codecs
/
aac
/
sbr
/
mod.rs
diff --git
a/nihav-mpeg/src/codecs/aac/sbr/mod.rs
b/nihav-mpeg/src/codecs/aac/sbr/mod.rs
index f337e965004f64fbdb8e621eb2f626e4aba0f177..d2477b98a45a5735d5c83a2b1c58a487158a2e23 100644
(file)
--- a/
nihav-mpeg/src/codecs/aac/sbr/mod.rs
+++ b/
nihav-mpeg/src/codecs/aac/sbr/mod.rs
@@
-189,9
+189,10
@@
impl SBRState {
}
}
for (dst, high) in self.low_to_high_res.iter_mut().zip(high_src.iter()) {
}
}
for (dst, high) in self.low_to_high_res.iter_mut().zip(high_src.iter()) {
- match low_src.binary_search(high) {
- Ok(idx) | Err(idx) => *dst = idx,
- };
+ *dst = match low_src.binary_search(high) {
+ Ok(idx) => idx,
+ Err(idx) => idx - 1,
+ };
}
let num_q = (((hdr.noise_bands as f32) * ((k2 as f32) / (k_x as f32)).log2()).round() as usize).max(1);
}
let num_q = (((hdr.noise_bands as f32) * ((k2 as f32) / (k_x as f32)).log2()).round() as usize).max(1);