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yuanhecai eb4e4736a4 loong64: UV subsample's 4-pixel rounding average and ARGBToJ444 fixed-point scaling 
The UV subsample's 4-pixel rounding average and ARGBToJ444 fixed-point scaling
were updated in d32d19cc and c060118b. The LoongArch optimization is updated now.

Bug: 381138208
Change-Id: I3585d72564e4fffe514599b1a9b4fee8fbbd0266
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6878364
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Mirko Bonadei <mbonadei@chromium.org>
2025-09-03 12:22:44 -07:00
build_overrides [tracing] Remove enable_base_tracing 2025-05-15 01:22:38 -07:00
docs Fix typo, remove mips as title already contain mips 2025-04-15 14:02:28 -07:00
include Rollback util cpuid hybrid detect due to android build errors 2025-08-12 14:13:24 -07:00
infra/config infra/config: Remove luci.recipes.use_python3 experiment 2025-09-02 01:08:51 -07:00
riscv_script Support RVV v0.12 intrinsics for row_rvv.cc & scale_rvv.cc 2024-06-17 18:01:49 +00:00
source loong64: UV subsample's 4-pixel rounding average and ARGBToJ444 fixed-point scaling 2025-09-03 12:22:44 -07:00
tools_libyuv Remove libyuv dependency on base/ 2025-01-08 09:04:21 -08:00
unit_test Disable broken TestSetCpuFlags test on Windows 2025-08-21 13:18:52 -07:00
util Rollback util cpuid hybrid detect due to android build errors 2025-08-12 14:13:24 -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 Enable CFI assembly support 2025-03-31 10:47:47 -07:00
Android.mk Split scale_test and scale_plane_test to allow building on small devices 2023-12-09 18:39:41 +00:00
AUTHORS [DEPS] Remove cleanup_links pre_deps_hooks 2024-04-08 15:47:48 +00:00
BUILD.gn Fix assert(current_toolchain == default_toolchain) failure on win bots. 2025-09-01 07:05:21 -07:00
CM_linux_packages.cmake Use grep extended regex for version 2024-11-13 02:11:17 +00:00
CMakeLists.txt [AArch64] Add missing "+i8mm" feature when building SME 2025-06-19 12:10:23 -07:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Roll siso and update its CIPD package 2025-08-25 10:25:14 -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
libyuv.gni Revert "Do not enable libyuv_use_sme for is_android" 2024-10-15 18:20:36 +00:00
libyuv.gyp TestI400LargeSize fix for warning message build error 2025-08-01 12:03:11 -07:00
libyuv.gypi Add missing files for loong64 GYP build 2025-04-15 14:03:27 -07:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk Split convert_test and convert_argb_test to allow building on small systems that run out of memory compiling unittests. 2023-12-08 13:39:56 +00:00
OWNERS add jansson@google.com to infra owners to cover when Mirko is OOO 2022-10-28 09:46:02 +00:00
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 Rollback util cpuid hybrid detect due to android build errors 2025-08-12 14:13:24 -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

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.