Rust utilities for YUV format handling and conversion.

Fast and simple YUV approximation conversion in pure Rust. At most the same as libyuv does. Performance will be equal to libyuv or slightly higher on platforms where SIMD is implemented. Otherwise equal or slower.

Mostly implemented AVX-512, AVX2, SSE, NEON, WASM

X86 targets with SSE and AVX uses runtime dispatch to detect available cpu features.

Supports:

• YCbCr ( aka YUV )
• YCgCo
• YUY2
• Identity ( GBR )
• Sharp YUV

All the methods support RGB, BGR, BGRA and RGBA

SIMD

Runtime dispatch is used for use if available sse4.1, avx2, avx512bw, avx512vbmi, rdm for NEON.

For the sse4.1, avx2, rdm no action is needed, however for AVX-512 activated feature nightly_avx512 along nightly rust channel is required.

Wasm simd128 as target feature should be enabled for implemented SIMD wasm paths support,

Rayon

Some paths have multi-threading support, consider this feature if you're working on platform with multi-threading.

Adding to project

cargo add yuvutils-rs

RGB to YCbCr

let mut planar_image =
    YuvPlanarImageMut::<u8>::alloc(width as u32, height as u32, YuvChromaSubsampling::Yuv420);
rgb_to_yuv422(
    &mut planar_image,
    &src_bytes,
    rgba_stride as u32,
    YuvRange::Limited,
    YuvStandardMatrix::Bt601,
)
.unwrap();

YCbCr to RGB

yuv420_to_rgb(
    &yuv_planar_image,
    &mut rgba,
    rgba_stride as u32,
    YuvRange::Limited,
    YuvStandardMatrix::Bt601,
)
.unwrap();

Benchmarks

Tests performed on the image 1997x1331

YUV 8 bit-depth conversion

aarch64 tested on Mac Pro M3.

AVX2 tests performed on Digital Ocean Shared Premium Intel 2 vCPU with Ubuntu 24.04 droplet. AVX2 Win test performed on Windows 11 Intel Core i9-14900HX.

cargo bench --bench yuv8 --manifest-path ./app/Cargo.toml

AVX-512 tests performed on AWS c5.large with Ubuntu 24.04 instance with command

cargo +nightly bench --bench yuv8 --manifest-path ./app/Cargo.toml --features nightly_avx512

Encoding 8-bit

Conversion	time(NEON)	Time(AVX2 Win)	Time(AVX2)	Time(AVX-512)
utils RGB->YUV 4:2:0	360.53µs	467.74µs	1.6235ms	722.87µs
libyuv RGB->YUV 4:2:0	306.80µs	3.70ms	2.4843ms	972.52µs
utils RGBA->YUV 4:2:0	422.36µs	447.70µs	2.2825ms	785.93µs
libyuv RGBA->YUV 4:2:0	429.36µs	2.70ms	1.6656ms	707.33µs
utils RGBA->YUV 4:2:2	590.36µs	586.14µs	3.0181ms	964.87µs
libyuv RGBA->YUV 4:2:2	651.84µs	4.3003ms	2.4168ms	947.97µs
utils RGBA->YUV 4:4:4	674.61µs	645.63µs	3.2485ms	974.29µs

Decoding 8-bit

Conversion	time(NEON)	Time(AVX2 Win)	Time(AVX2)	Time(AVX-512)
utils YUV NV12->RGBA	399.37µs	396.58µs	1.97ms	736.21µs
utils YUV NV12->RGB	470.35µs	421.28µs	1.66ms	654.37µs
libyuv YUV NV12->RGB	621.11µs	5.5533ms	1.84ms	800.85µs
utils YUV 4:2:0->RGB	346.13µs	405.96µs	1.54ms	614.19µs
libyuv YUV 4:2:0->RGB	747.18µs	5.8231ms	2.58ms	1.16ms
utils YUV 4:2:0->RGBA	396.58µs	397.43µs	1.72ms	733.88µs
libyuv YUV 4:2:0->RGBA	710.88µs	557.44µs	1.81ms	870.64µs
utils YUV 4:2:2->RGBA	471.54µs	440.47µs	2.22ms	824.69µs
libyuv YUV 4:2:2->RGBA	734.25µs	579.24µs	1.89ms	851.24µs
utils YUV 4:4:4->RGBA	458.71µs	410.01µs	2.33ms	819.17µs
libyuv YUV 4:4:4->RGBA	596.55µs	525.90µs	1.91ms	803.62µs
utils YUV 4:0:0->RGBA	220.67µs	260.69µs	1.05ms	600.43µs
libyuv YUV 4:0:0->RGBA	522.71µs	1.8204ms	811.03µs	525.56µs

YUV 16 bit-depth conversion

cargo bench --bench yuv16 --manifest-path ./app/Cargo.toml

AVX-512 tests performed on AWS c5.large with Ubuntu 24.04 instance with command

cargo +nightly bench --bench yuv16 --manifest-path ./app/Cargo.toml --features nightly_avx512

Encoding 10-bit

10-bit encoding is not implemented in libyuv

	time(NEON)	Time(AVX2 Win)	Time(AVX2)	Time(AVX-512)
utils RGB10->YUV10 4:2:0	539.82µs	745.02µs	3.13ms	1.21ms
libyuv RGB10->YUV10 4:2:0	x	x	x	x
utils RGBA10->YUV10 4:2:0	674.12µs	807.89µs	3.66ms	1.57ms
libyuv RGBA10->YUV10 4:2:0	x	x	x	x
utils RGBA10->YUV10 4:2:2	838.82µs	1.04ms	6.33ms	1.83ms
libyuv RGBA10->YUV10 4:2:2	x	x	x	x
utils RGBA10->YUV10 4:4:4	659.93 µs	1.12ms	5.22ms	2.03ms

Decoding 10-bit

	time(NEON)	Time(AVX2 Win)	Time(AVX2)	Time(AVX-512)
utils YUV10 4:2:0->RGB10	640.34µs	662.38µs	2.91ms	1.23ms
libyuv YUV10 4:2:0->RGB10	x	x	x	x
utils YUV10 4:2:0->RGBA10	814.86µs	670.15µs	3.92ms	1.59ms
utils YUV10 4:2:0->RGBA8	812.53µs	492.63µs	2.27ms	900.10µs
libyuv YUV10 4:2:0->RGBA8	1.7037ms	6.8641ms	2.10ms	966.94µs
utils YUV10 4:2:2->RGBA10	859.39µs	787.41µs	3.71ms	1.61ms
utils YUV10 4:2:2->RGBA8	878.54µs	438.14µs	2.28ms	972.19µs
libyuv YUV10 4:2:2->RGBA8	1.7056ms	6.8374ms	1.94ms	991.23µs
utils YUV10 4:4:4->RGBA10	931.28µs	848.02µs	3.82ms	1.8639ms

This project is licensed under either of

• BSD-3-Clause License (see LICENSE)
• Apache License, Version 2.0 (see LICENSE)

at your option.