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Frank Barchard 00950840d1 YUY2ToNV12 using YUY2ToY and YUY2ToNVUV 
- Optimized YUY2ToNV12 that reduces it from 3 steps to 2 steps
  - Was SplitUV, memcpy Y, InterpolateUV
  - Now YUY2ToY, YUY2ToNVUV
- rollback LIBYUV_UNLIMITED_DATA

3840x2160 1000 iterations:

Pixel 2 Cortex A73
Was YUY2ToNV12_Opt (6515 ms)
Now YUY2ToNV12_Opt (3350 ms)

AB7 Mediatek P35 Cortex A53
Was YUY2ToNV12_Opt (6435 ms)
Now YUY2ToNV12_Opt (3301 ms)

Skylake AVX2 x64
Was YUY2ToNV12_Opt (1872 ms)
Now YUY2ToNV12_Opt (1657 ms)

SSE2 x64
Was YUY2ToNV12_Opt (2008 ms)
Now YUY2ToNV12_Opt (1691 ms)

Windows Skylake AVX2 32 bit x86
Was YUY2ToNV12_Opt (2161 ms)
Now YUY2ToNV12_Opt (1628 ms)

Bug: libyuv:943
Change-Id: I6c2ba2ae765413426baf770b837de114f808f6d0
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3929843
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
2022-09-30 22:41:21 +00:00
build_overrides Roll chromium_revision 829c6df33d..7d683aeda8 (945687:1050091) 2022-09-22 14:56:57 +00:00
docs RAWToJNV21 function with 2 step conversion 2022-03-01 19:33:49 +00:00
include YUY2ToNV12 using YUY2ToY and YUY2ToNVUV 2022-09-30 22:41:21 +00:00
infra/config [code-health] Migrate presubmit to python3 2022-09-26 21:57:55 +00:00
source YUY2ToNV12 using YUY2ToY and YUY2ToNVUV 2022-09-30 22:41:21 +00:00
tools_libyuv Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
unit_test YUY2ToNV12 using YUY2ToY and YUY2ToNVUV 2022-09-30 22:41:21 +00:00
util I420ToRGB24MatrixFilter function added 2022-09-16 19:46:47 +00:00
.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
.vpython remove swarming_client 2021-09-09 07:11:45 +00:00
.vpython3 Add .vpython3 to libyuv. 2022-07-15 18:43:49 +00:00
Android.bp Android.bp: Remove reference to LICENSE_THIRD_PARTY 2022-08-02 22:13:44 +00:00
Android.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
AUTHORS Fix compile errors for ARM targets when libyuv_use_neon = false 2022-05-13 10:12:38 +00:00
BUILD.gn Add I210ToI420 2022-06-09 08:07:50 +00:00
cleanup_links.py Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
CM_linux_packages.cmake Reduce cmake verbosity and update min version 2022-08-03 06:59:54 +00:00
CMakeLists.txt Define _CRT_SECURE_NO_WARNINGS if MSVC CRT is used 2022-08-03 21:18:02 +00:00
codereview.settings [infra] remove no longer supported git cl upload setting. 2021-04-28 12:47:52 +00:00
DEPS Remove old cipd clobber gclient hook. 2022-09-29 17:01:38 +00:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-09 19:34:43 +00:00
download_vs_toolchain.py Update gclient instructions + environment 2022-02-24 15:19:23 +00:00
libyuv.gni [code-health] Migrate presubmit to python3 2022-09-26 21:57:55 +00:00
libyuv.gyp Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
libyuv.gypi Add libyuv.gyp build files 2022-03-21 23:48:16 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
linux.mk RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
OWNERS Add wtc as owner 2022-05-25 12:46:00 +00:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Update PRESUBMIT, cleanup_links and autoroller to py3 2022-02-24 13:34:14 +00:00
public.mk use unix line endings 2018-06-20 23:19:59 +00:00
pylintrc Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
README.chromium Enable unlimited data for YUV to RGB 2022-09-23 12:51:37 +00:00
README.md README: fix doc links 2018-08-13 18:28:55 +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 on Arm.
  • Optimized for MSA on Mips.

Development

See Getting started for instructions on how to get started developing.

You can also browse the docs directory for more documentation.