From 25fd05c73b167f37e58ec5601846f9b77e2d03a4 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sat, 26 Jun 2021 18:44:17 +0200 Subject: [PATCH] msvideo1enc: get rid of small repeated allocation --- nihav-ms/src/codecs/msvideo1enc.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/nihav-ms/src/codecs/msvideo1enc.rs b/nihav-ms/src/codecs/msvideo1enc.rs index cdad0ce..8a6281d 100644 --- a/nihav-ms/src/codecs/msvideo1enc.rs +++ b/nihav-ms/src/codecs/msvideo1enc.rs @@ -50,7 +50,8 @@ impl VQElement for Pixel16 { for i in 0..31 { offs[i + 1] = offs[i] + counts[i]; } - let mut dst = vec![Pixel16(0); arr.len()]; + let mut dst = [Pixel16(0); 16]; + assert!(dst.len() >= arr.len()); for pix in arr.iter() { let (r, g, b) = pix.unpack(); let idx = match component { @@ -61,7 +62,8 @@ impl VQElement for Pixel16 { dst[offs[idx]] = *pix; offs[idx] += 1; } - arr.copy_from_slice(dst.as_slice()); + let len = arr.len(); + arr.copy_from_slice(&dst[..len]); } fn max_dist_component(min: &Self, max: &Self) -> usize { let (r0, g0, b0) = max.unpack(); -- 2.30.2