coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2026-10-28 18:07:12 +08:00
Code Issues Packages Projects Releases Wiki Activity
3,045 Commits 4 Branches 0 Tags BSD-3-Clause 65 MiB
C++ 97.7%
Python 1.2%
Starlark 0.3%
C 0.3%
CMake 0.3%
Other 0.1%
Go to file
Frank Barchard 969c96cfb4 BlendPlaneRow_AVX512BW and NEON 
CPU / Architecture                 Before (C) After (NEON) Improvement
----------------------------------------------------------------------
Cortex-A53 (Pixel 2 XL Little)        3248 ms       792 ms       4.10x
Cortex-A73 (Pixel 2 XL Big)            432 ms       392 ms       1.10x
Cortex-A55 (Pixel 7 Little)            780 ms       563 ms       1.39x
Cortex-A78 (Pixel 7 Mid)               254 ms       170 ms       1.49x
Cortex-X1 (Pixel 7 Big)                158 ms       129 ms       1.22x
Cortex-A510 (Galaxy S22 Little)        816 ms       441 ms       1.85x
Cortex-A710 (Galaxy S22 Mid)           270 ms       129 ms       2.09x
Cortex-X2 (Galaxy S22 Big)             116 ms        80 ms       1.45x
Cortex-A510 (Galaxy S23 Little)        723 ms       373 ms       1.94x
Cortex-A715 (Galaxy S23 Mid)           183 ms       119 ms       1.54x
Cortex-X3 (Galaxy S23 Big)             122 ms        72 ms       1.69x
Lumix C1 Pro (PD2509 Little)           246 ms       156 ms       1.58x
Lumix C1 Premium (PD2509 Mid)          211 ms       112 ms       1.88x
Lumix C1 Ultra (PD2509 Big)             82 ms        50 ms       1.64x
Oryon-v3M (OnePlus Mid)                233 ms       150 ms       1.55x
Oryon-v3L (OnePlus Big)                103 ms        85 ms       1.21x

On Icelake
Function (1280x720)           C     SSSE3     AVX2   AVX-512BW    Gain
----------------------------------------------------------------------
BlendPlane               901 ms    165 ms   135 ms      115 ms   1.17x
I420Blend               1398 ms    287 ms   198 ms      187 ms   1.06x


Bug: 546077674
Change-Id: I189c44cc757c0e26838a7b6fdb2db1cbe5f96f20
TAG=agy
CONV=0f82c25c-616e-4bb3-beeb-981decb0f40c
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8297264
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-08-26 17:45:34 -07:00
build_overrides [tracing] Remove enable_base_tracing 2025-05-15 01:22:38 -07:00
docs Fix off by 32 rounding for I420ToAR30 2026-08-24 13:52:04 -07:00
include BlendPlaneRow_AVX512BW and NEON 2026-08-26 17:45:34 -07:00
infra/config Use default xcode version in libyuv 2025-11-24 07:54:14 -08:00
riscv_script Support RVV v0.12 intrinsics for row_rvv.cc & scale_rvv.cc 2024-06-17 18:01:49 +00:00
source BlendPlaneRow_AVX512BW and NEON 2026-08-26 17:45:34 -07:00
tools_libyuv Remove libyuv dependency on base/ 2025-01-08 09:04:21 -08:00
unit_test RAWToRGB24 avx2/avx512 use permq/shufb and avx512vbmi 2026-08-25 14:37:32 -07:00
util vdpphps use emit to support old compilers 2026-07-06 15:51:14 -07:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
.gn Set use_siso=true by default in .gn 2025-06-23 23:50:32 -07:00
.vpython3 [libyuv] Bump vpython from 3.8 to 3.11 2025-09-03 12:22:19 -07:00
Android.bp Deprecate MIPS and MSA support. 2025-10-16 12:20:40 -07:00
Android.mk Android.mk: add a check for NDK_ROOT 2026-06-03 17:00:30 -07:00
AUTHORS Fix same-width vertical point upsampling 2026-08-24 19:28:50 -07:00
BUILD.bazel Enable LIBYUV_UNBIASED_DATA 2026-08-26 11:19:33 -07:00
BUILD.gn Enable LIBYUV_UNBIASED_DATA 2026-08-26 11:19:33 -07:00
CM_linux_packages.cmake Use grep extended regex for version 2024-11-13 02:11:17 +00:00
CMakeLists.txt Enable LIBYUV_UNBIASED_DATA 2026-08-26 11:19:33 -07:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS [DEPS] Add CPython CIPD package for hermetic Python toolchain 2026-08-19 20:31:30 -07:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-09 19:34:43 +00:00
download_vs_toolchain.py Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
GEMINI.md GEMINI.md: Update Arm wording and guidance 2026-08-18 11:21:14 -07:00
libyuv.bzl Add Bazel build support 2026-04-15 18:20:26 -07:00
libyuv.gni row_win.cc rewrite into intrinsics 2026-04-15 19:53:16 -07:00
libyuv.gyp Stop setting --dynamic-linker for target_os="android" 2026-05-27 04:34:07 -07:00
libyuv.gypi Add missing files for riscv64 GYP build 2026-06-03 20:11:31 -07:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk Deprecate MIPS and MSA support. 2025-10-16 12:20:40 -07:00
OWNERS Remove magjed from OWNERS 2026-08-24 10:43:21 -07:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
public.mk use unix line endings 2018-06-20 23:19:59 +00:00
pylintrc Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
README.chromium RAWToRGB24 avx2/avx512 use permq/shufb and avx512vbmi 2026-08-25 14:37:32 -07:00
README.md Update README.md and environment_variables.md for Arm 2024-09-20 00:29:33 +00:00
winarm.mk NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00
WORKSPACE.bazel Add Bazel build support 2026-04-15 18:20:26 -07:00

README.md

libyuv is an open source project that includes YUV scaling and conversion functionality.

  • Scale YUV to prepare content for compression, with point, bilinear or box filter.
  • Convert to YUV from webcam formats for compression.
  • Convert to RGB formats for rendering/effects.
  • Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
  • Optimized for SSSE3/AVX2 on x86/x64.
  • Optimized for Neon/SVE2/SME on Arm.
  • Optimized for MSA on Mips.
  • Optimized for RVV on RISC-V.

Development

See Getting started for instructions on how to get started developing.

You can also browse the docs directory for more documentation.