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Frank Barchard 96f98f6915 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 <bweiss@google.com>
2025-01-31 16:46:29 -08:00
build_overrides Roll chromium_revision af3d01376b..f2539aa88a (1174635:1398488) 2025-01-08 06:40:17 -08:00
docs avx10_2 detect 2025-01-21 13:53:19 -08:00
include ARGBToJ444 and RAWToJ444 NEON 2025-01-31 16:46:29 -08:00
infra/config Revert "Remove linux_tsan2 bot from CQ." 2025-01-09 00:26:58 -08:00
riscv_script Support RVV v0.12 intrinsics for row_rvv.cc & scale_rvv.cc 2024-06-17 18:01:49 +00:00
source ARGBToJ444 and RAWToJ444 NEON 2025-01-31 16:46:29 -08:00
tools_libyuv Remove libyuv dependency on base/ 2025-01-08 09:04:21 -08:00
unit_test RAWToJ444 and ARGBToJ444 2025-01-29 15:18:38 -08:00
util avx10_2 detect 2025-01-21 13:53:19 -08:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
.gn Roll chromium_revision 829c6df33d..7d683aeda8 (945687:1050091) 2022-09-22 14:56:57 +00:00
.vpython3 Update protobuf version in .vpython3. 2025-01-09 00:32:24 -08:00
Android.bp Split scale_test and scale_plane_test to allow building on small devices 2023-12-09 18:39:41 +00:00
Android.mk Split scale_test and scale_plane_test to allow building on small devices 2023-12-09 18:39:41 +00:00
AUTHORS [DEPS] Remove cleanup_links pre_deps_hooks 2024-04-08 15:47:48 +00:00
BUILD.gn Roll chromium_revision af3d01376b..f2539aa88a (1174635:1398488) 2025-01-08 06:40:17 -08:00
CM_linux_packages.cmake Use grep extended regex for version 2024-11-13 02:11:17 +00:00
CMakeLists.txt Update "TEST" to "UNIT_TEST" in a comment 2025-01-27 16:21:09 -08:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Try removing some unused DEPS 2025-01-31 01:10:17 -08:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-09 19:34:43 +00:00
download_vs_toolchain.py Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
libyuv.gni Revert "Do not enable libyuv_use_sme for is_android" 2024-10-15 18:20:36 +00:00
libyuv.gyp Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
libyuv.gypi Fix missing headers in GN/GYP build files 2024-04-01 09:19:24 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk Split convert_test and convert_argb_test to allow building on small systems that run out of memory compiling unittests. 2023-12-08 13:39:56 +00:00
OWNERS add jansson@google.com to infra owners to cover when Mirko is OOO 2022-10-28 09:46:02 +00:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
public.mk use unix line endings 2018-06-20 23:19:59 +00:00
pylintrc Update pylintrc to a pep-8 like style 2024-12-18 05:38:56 -08:00
README.chromium RAWToJ444 and ARGBToJ444 2025-01-29 15:18:38 -08:00
README.md Update README.md and environment_variables.md for Arm 2024-09-20 00:29:33 +00:00
winarm.mk NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00

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.