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Frank Barchard f0921806a2 Disable NEON if memory sanitizer is enabled 
- MSAN fails on most inline assembly, unaware of what the load and store instructions do.
- MSAN is also failing on row_any functions, which memcpy a correct number of pixels into a buffer that is SIMD vector sized, apply SIMD to the full vector, and then memcpy the exact number of resulting pixels to the output buffer.  MSAN wants the temporary buffer to be initialized.  Which genenerally is done with a memset(buf, 0, sizeof(buf)); to satisify MSAN.
- RVV may not require disabling MSAN, since row functions are all 'any' number of elements, and implementation is intrinsics.

Bug: b/297979878
Change-Id: Ic21200689c0c7d2c85bb1de3eef38570137d3d8b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4832740
Reviewed-by: Mirko Bonadei <mbonadei@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Wan-Teh Chang <wtc@google.com>
2023-08-31 18:07:42 +00:00
build_overrides Define enable_safe_libcxx in build_overrides/build.gni. 2023-05-03 06:08:40 +00:00
docs [RISC-V] Support CMake build with custom compiler flags 2023-07-25 09:21:59 +00:00
include Disable NEON if memory sanitizer is enabled 2023-08-31 18:07:42 +00:00
infra/config infra/config: remove goma property 2023-08-17 06:06:53 +00:00
riscv_script [RISC-V] Support CMake build with custom compiler flags 2023-07-25 09:21:59 +00:00
source RVV check __riscv_v_intrinsic version 2023-08-04 18:39:27 +00:00
tools_libyuv Do not roll the Fuchsia SDK. 2023-07-03 09:18:00 +00:00
unit_test cpu_test show __riscv_v_intrinsic quals to 11000 (v0.11) or 1000000 (v1.0). 2023-08-02 08:19:02 +00:00
util yuvconstants.c: fix double->float conv warnings 2023-05-09 18:50:29 +00:00
.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 Roll chromium_revision 829c6df33d..7d683aeda8 (945687:1050091) 2022-09-22 14:56:57 +00:00
.vpython remove swarming_client 2021-09-09 07:11:45 +00:00
.vpython3 Update vpython3 requests 2023-06-01 19:06:40 +00:00
Android.bp Edit Android.bp after refactor in AOSP 2023-08-30 15:41:21 +00:00
Android.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
AUTHORS Fix compile errors for ARM targets when libyuv_use_neon = false 2022-05-13 10:12:38 +00:00
BUILD.gn Add GN builds on loongarch platform. 2023-06-19 17:47:05 +00:00
cleanup_links.py Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
CM_linux_packages.cmake Reduce cmake verbosity and update min version 2022-08-03 06:59:54 +00:00
CMakeLists.txt CMake remove clang specific build options that break Visual Studio builds 2023-08-01 19:28:38 +00:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Switch libcxx paths from trunk -> src. 2023-08-02 15:58:20 +00:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-09 19:34:43 +00:00
download_vs_toolchain.py Update gclient instructions + environment 2022-02-24 15:19:23 +00:00
libyuv.gni Add GN builds on loongarch platform. 2023-06-19 17:47:05 +00:00
libyuv.gyp Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
libyuv.gypi Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +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 PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
public.mk use unix line endings 2018-06-20 23:19:59 +00:00
pylintrc Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
README.chromium Disable NEON if memory sanitizer is enabled 2023-08-31 18:07:42 +00:00
README.md Add RAWToARGBRow_RVV,RAWToRGBARow_RVV,RAWToRGB24Row_RVV 2023-04-07 18:45:08 +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 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.