Google Git
Sign in
fuchsia / third_party / libyuv / 823d960afc3efb17836c8758d1543873ff394584
commit823d960afc3efb17836c8758d1543873ff394584[log] [tgz]
authorGeorge Steed <george.steed@arm.com>Thu May 16 13:50:02 2024 +0100
committerFrank Barchard <fbarchard@chromium.org>Thu Nov 14 16:52:21 2024 +0000
treeac3604c85dfb5b90e9b4b683ff058014b59f4137
parent0ddf3f7b903ccb62baf92b68645280fdff532fb8 [diff]
[AArch64] Add SVE2 implementations of {P210,P410}ToAR30Row

Observed reductions in runtime compared to the existing Neon code:

            | P210ToAR30Row | P410ToAR30Row
Cortex-A510 |       -16.5%  |        -21.2%
Cortex-A520 | (!)    +2.7%  |         -8.7%
Cortex-A715 |        -6.1%  |         -6.1%
Cortex-A720 |        -6.2%  |         -5.9%
  Cortex-X2 |        -4.1%  |         -4.2%
  Cortex-X3 |        -4.2%  |         -4.2%
  Cortex-X4 |        -1.2%  |         -1.2%
Cortex-X925 |        -3.6%  |         -2.8%

Bug: b/42280942
Change-Id: I40723a370fad1ccb53f8ccd9d32cddb502500dd6
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6023036
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
3 files changed
tree: ac3604c85dfb5b90e9b4b683ff058014b59f4137
  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/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.