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android / platform / external / libyuv / 6f729fbe658a40dfd993fa8b22bd612bb17cde5c
commit6f729fbe658a40dfd993fa8b22bd612bb17cde5c[log] [tgz]
authorFrank Barchard <fbarchard@google.com>Mon Jun 16 16:56:37 2025 -0700
committerFrank Barchard <fbarchard@google.com>Tue Jun 17 11:55:27 2025 -0700
treea4cbf2b29c1cbbc00c231aeef1e73c89bc76a44b
parent889613683a2a064fc04136e8af9135f974611fd8 [diff]
ARGBToUV SSE use average of 4 pixels

- Was using avgb twice for non-exact and C for exact.

On Skylake Xeon:

Now SSE3
ARGBToJ420_Opt (326 ms)

Was
Exact C
ARGBToJ420_Opt (871 ms)
Not exact AVX2
ARGBToJ420_Opt (237 ms)
Not exact SSSE3
ARGBToJ420_Opt (312 ms)

Bug: 381138208
Change-Id: I6d1081bb52e36f06736c0c6575fa82bb2268629b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6629605
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Ben Weiss <bweiss@google.com>
7 files changed
tree: a4cbf2b29c1cbbc00c231aeef1e73c89bc76a44b
  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.