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H.264: assert the r clamp's endpoints directly

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
SusieeTheFemboy
2026-10-24 00:42:20 +02:00
co-authored by Claude Opus 5.5
parent 57acc28df3
commit 2bc30fbd9a
1 changed files with 4 additions and 0 deletions
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crates/h264/src/transform.rs
+4
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@@ -323,6 +323,10 @@ mod tests {
/// bit-exact for every stream inside it — instead of panicking.
#[test]
fn huge_coefficients_are_clamped_to_the_spec_r_range() {
assert_eq!(r_clamp(-32769), -32768);
assert_eq!(r_clamp(-32768), -32768);
assert_eq!(r_clamp(32767), 32767);
assert_eq!(r_clamp(32768), 32767);
let clamp = |v: i32| v.clamp(-(1 << 15), (1 << 15) - 1);
for d in [[i32::MAX; 16], [i32::MIN; 16], std::array::from_fn(|i| if i % 2 == 0 { i32::MIN } else { i32::MAX })] {
let clamped = std::array::from_fn(|i| clamp(d[i]));