coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2026-07-31 00:36:32 +08:00
Code Issues Packages Projects Releases Wiki Activity
2,980 Commits 4 Branches 0 Tags BSD-3-Clause 73 MiB
C++ 95.2%
C 2.3%
Python 1.6%
Starlark 0.4%
CMake 0.3%
Other 0.1%
Go to file
Wan-Teh Chang 40575b3561 I010ToNV12: dispatch Convert16To8Row on halfwidth 
The Convert16To8Row function pointer in I010ToNV12 is only ever called
with halfwidth for the chroma planes (the Y plane goes through
Convert16To8Plane which has its own dispatch), but its SIMD variants
were selected based on the alignment of the full luma width. When width
is a multiple of 64 but halfwidth is not, the bare AVX512BW kernel was
selected and over-read the chroma sources and over-wrote the temporary
row buffer. Match the MergeUVRow dispatch in the same function and key
on halfwidth.

Add a regression test that places the chroma sources against an
inaccessible page so the previous over-read faults on AVX512BW hardware.

Bug: chromium:514748734
Change-Id: I4c2a42857828cdcc6505ebaa65d5b6a95b0f7e55
2026-07-01 09:24:28 -07:00
build_overrides [tracing] Remove enable_base_tracing 2025-05-15 01:22:38 -07:00
docs Mirrow AVX2 functions for Visual C 2026-05-15 15:05:31 -07:00
include add bmm detect and vdpphps in util/cpuid 2026-06-09 14:52:48 -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 I010ToNV12: dispatch Convert16To8Row on halfwidth 2026-07-01 09:24:28 -07:00
tools_libyuv Remove libyuv dependency on base/ 2025-01-08 09:04:21 -08:00
unit_test I010ToNV12: dispatch Convert16To8Row on halfwidth 2026-07-01 09:24:28 -07:00
util add bmm detect and vdpphps in util/cpuid 2026-06-09 14:52:48 -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 [DEPS] Remove cleanup_links pre_deps_hooks 2024-04-08 15:47:48 +00:00
BUILD.bazel Add Bazel build support 2026-04-15 18:20:26 -07:00
BUILD.gn Stop setting --dynamic-linker for target_os="android" 2026-05-27 04:34:07 -07:00
CM_linux_packages.cmake Use grep extended regex for version 2024-11-13 02:11:17 +00:00
CMakeLists.txt Deprecate MIPS and MSA support. 2025-10-16 12:20:40 -07:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Roll chromium_revision 30d4d9c779..2fec1883d8 (1554090:1584384) 2026-02-12 23:42:06 -08:00
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 BGRAToI420 use BgraConstants for a direct conversion using AVX512BW 2026-06-08 12:21:47 -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 row_win.cc rewrite into intrinsics 2026-04-15 19:53:16 -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 I420ToRAW use 2 step AVX512 2026-06-08 14:32:13 -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.