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android/platform/external/libyuv/96f98f6915885f84b895dddcf8a553dc50a35aad
commit
96f98f6915885f84b895dddcf8a553dc50a35aad
[log]
author
Frank Barchard <[email protected]>
Fri Jan 31 02:56:59 2025 -0800
committer
Frank Barchard <[email protected]>
Fri Jan 31 16:46:29 2025 -0800
tree
bd2fc1cd352bcafa10e7ce22255fef48862f37c8
parent
1c938f342d0af30c31849156e7a0f73371cb480a [diff]
ARGBToJ444 and RAWToJ444 NEON

- Pass JPEG matrix to ARGBToUV444MatrixRow_NEON
- Remove NEON unsigned constants in favor of DOTPROD signed constants

Samsung S23:
Was C for UV
  ARGBToJ444_Opt (320 ms)
  RAWToJ444_Opt (411 ms)
Now I8MM
  ARGBToJ444_Opt (196 ms)
  RAWToJ444_Opt (301 ms)
NEON
  ARGBToJ444_Opt (505 ms)
  RAWToJ444_Opt (596 ms)

32 bit ARM NEON
  ARGBToJ444_Opt (1135 ms)
  RAWToJ444_Opt (1546 ms)

Profile of RAWToJ444
  37.72%  ARGBToUVJ444Row_NEON_I8MM
  34.48%  RAWToARGBRow_NEON
  14.65%  ARGBToYJRow_NEON_DotProd

Bug: 390247964
Change-Id: Ia26240bee974a0baf502548f2fc896b193c3006c
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6220890
Reviewed-by: Ben Weiss <[email protected]>
4 files changed
tree: bd2fc1cd352bcafa10e7ce22255fef48862f37c8
  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.