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android / platform / external / libyuv / 61354d26
commit61354d2671d9b5c73cc964415fe25bc76cea051a[log] [tgz]
authorFrank Barchard <fbarchard@google.com>Mon Feb 10 18:19:58 2025 -0800
committerlibyuv LUCI CQ <libyuv-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Feb 10 18:36:18 2025 -0800
treec18dc0c674efd4f85cffa9dce3f7bfc19d593a3a
parentd32d19ccf2711d8bdf43a68dc5f8daedb7965c62 [diff]
ARGBToUV Matrix for AVX2 and SSSE3

  - Round before shifting to 8 bit to match NEON
  - RAWToARGB use unaligned loads and port to AVX2

Was C/SSSE/AVX2
ARGBToI444_Opt (343 ms)
ARGBToJ444_Opt (677 ms)
RAWToI444_Opt (405 ms)
RAWToJ444_Opt (803 ms)

Now AVX2
ARGBToI444_Opt (283 ms)
ARGBToJ444_Opt (284 ms)
RAWToI444_Opt (316 ms)
RAWToJ444_Opt (339 ms)

Profile Now AVX2
  38.31%  ARGBToUVJ444Row_AVX2
  32.31%  RAWToARGBRow_AVX2
  23.99%  ARGBToYJRow_AVX2

Profile Was C/SSSE/AVX2
    73.15%  ARGBToUVJ444Row_C
    15.74%  RAWToARGBRow_SSSE3
     8.87%  ARGBToYJRow_AVX2

Bug: 381138208
Change-Id: I696b2d83435bc985aa38df831e01ff1a658da56e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6231592
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Ben Weiss <bweiss@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
9 files changed
tree: c18dc0c674efd4f85cffa9dce3f7bfc19d593a3a
  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. .vpython3
  14. Android.bp
  15. Android.mk
  16. AUTHORS
  17. BUILD.gn
  18. CM_linux_packages.cmake
  19. CMakeLists.txt
  20. codereview.settings
  21. DEPS
  22. DIR_METADATA
  23. download_vs_toolchain.py
  24. libyuv.gni
  25. libyuv.gyp
  26. libyuv.gypi
  27. LICENSE
  28. linux.mk
  29. OWNERS
  30. PATENTS
  31. PRESUBMIT.py
  32. public.mk
  33. pylintrc
  34. README.chromium
  35. README.md
  36. 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.