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fuchsia / third_party / libyuv / d32436e8f816198236701b3363bd418c764c13c2
commitd32436e8f816198236701b3363bd418c764c13c2[log] [tgz]
authorGeorge Steed <george.steed@arm.com>Wed Apr 10 16:36:26 2024 +0100
committerFrank Barchard <fbarchard@chromium.org>Tue Jul 02 18:16:33 2024 +0000
tree9900f0af625065689eb2d7e07f60e36e062d4344
parentbbd9cedc4f0a474a2639fdcb8fef1c2c11c00396 [diff]
[AArch64] Add Neon implementation for I422ToAR30Row_NEON

There is an existing x86 implementation for this kernel, but not for
AArch64, so add one.

Reduction in runtimes, compared to the existing C code compiled with
LLVM 17:

 Cortex-A55: -43.1%
Cortex-A510: -22.3%
 Cortex-A76: -54.8%

Co-authored-by: Cosmina Dunca <cosmina.dunca@arm.com>
Bug: libyuv:976
Change-Id: Ifead36bcb8682a527136223e0dcd210e9abe744a
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5607763
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
4 files changed
tree: 9900f0af625065689eb2d7e07f60e36e062d4344
  1. build_overrides/
  2. docs/
  3. include/
  4. infra/
  5. riscv_script/
  6. source/
  7. tools_libyuv/
  8. unit_test/
  9. util/
  10. .clang-format
  11. .gitignore
  12. .gn
  13. .vpython
  14. .vpython3
  15. Android.bp
  16. Android.mk
  17. AUTHORS
  18. BUILD.gn
  19. CM_linux_packages.cmake
  20. CMakeLists.txt
  21. codereview.settings
  22. DEPS
  23. DIR_METADATA
  24. download_vs_toolchain.py
  25. libyuv.gni
  26. libyuv.gyp
  27. libyuv.gypi
  28. LICENSE
  29. linux.mk
  30. OWNERS
  31. PATENTS
  32. PRESUBMIT.py
  33. public.mk
  34. pylintrc
  35. README.chromium
  36. README.md
  37. winarm.mk
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.