coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2025-12-09 10:16:46 +08:00
Code Issues Packages Projects Releases Wiki Activity
1,890 Commits 3 Branches 0 Tags BSD-3-Clause 60 MiB
C++ 95.5%
C 2.2%
Python 1.6%
CMake 0.3%
Starlark 0.2%
Other 0.1%
Go to file
Frank Barchard 1c85f98846 Scale down by 2 linear use 'half add' to average pixels. 
Use ld2 to load even and odd pixels into different registers
and hadd to half add them to each other.

Previously used paired and shift.

TBR=kjellander@chromium.org
BUG=libyuv:723
TEST=ScaleDownBy2_Linear

Change-Id: I3ec72bcf7d4c746837217496c301eb4e4ad963cf
Reviewed-on: https://chromium-review.googlesource.com/644113
Reviewed-by: Cheng Wang <wangcheng@google.com>
2017-08-30 22:10:32 +00:00
build_overrides Remove deprecated macOS SDK overrides. 2017-07-20 22:26:41 +00:00
docs Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
include Add MSA optimized HalfFloatRow function 2017-08-29 18:40:08 +00:00
infra/config Remove duplicated bot linux_msan in cq.cfg. 2017-06-01 17:58:16 +00:00
source Scale down by 2 linear use 'half add' to average pixels. 2017-08-30 22:10:32 +00:00
tools_libyuv Fix Valgrind by restoring scripts deleted in Chroium. 2017-08-15 08:51:37 +00:00
unit_test Gaussian reorder for benefit of A73 2017-08-25 19:00:05 +00:00
util Revert "include <new> header for benefit of new clang builds" 2017-08-03 22:03:47 +00:00
.clang-format clang-format libyuv 2016-11-07 17:37:23 -08:00
.gitignore Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
.gn Update .gn to set a min SDK for macOS via GN. 2017-07-13 17:34:42 +00:00
all.gyp Android support 2013-11-21 19:57:10 +00:00
Android.mk Fix data races in libyuv::TestCpuFlag(). 2017-05-24 02:09:03 +00:00
AUTHORS Adding AUTHORS file to libyuv 2011-11-01 20:44:21 +00:00
BUILD.gn Change ScaleSumSamples to return Sum of Squares 2017-08-09 22:19:45 +00:00
cleanup_links.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
CM_linux_packages.cmake Add installer builds to cmake for linux 2017-01-26 23:05:17 +00:00
CMakeLists.txt Rename convert to yuvconvert to avoid name clash with linux util 2017-04-06 18:58:42 +00:00
codereview.settings Make Gerrit the default for libyuv code reviews 2017-01-24 18:34:48 +00:00
DEPS win: Rename clang_x64 to win_clang_x64 in build/toolchain/win, step 4/5. 2017-07-25 19:59:42 +00:00
download_vs_toolchain.py Roll chromium_revision 260824:262938 + fix binutils. Since it's not possible to have platform-specific hooks executing, binutils must be downloaded for all platforms in order for the download.py hook to execute properly on non-unix platforms. 2014-04-11 23:40:41 +00:00
gyp_libyuv Skip running GYP if GYP_CHROMIUM_NO_ACTION is set in environment 2016-04-08 14:01:29 +02:00
gyp_libyuv.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
libyuv_nacl.gyp NaCl/GYP: remove references to prep_toolchain from libyuv. prep_toolchain is now a no-op. 2015-04-22 17:42:21 +00:00
libyuv_test.gyp Fix data races in libyuv::TestCpuFlag(). 2017-05-24 02:09:03 +00:00
libyuv.gni Add MIPS SIMD Arch (MSA) optimized MirrorRow function 2016-09-22 16:12:22 -07:00
libyuv.gyp Rename mips source files to dspr2. 2017-01-27 23:11:43 +00:00
libyuv.gypi Rename mips source files to dspr2. 2017-01-27 23:11:43 +00:00
LICENSE Update Copyright notice to follow new chromium conventions. 2012-08-08 19:04:24 +00:00
LICENSE_THIRD_PARTY README.chromium license field for WebView and LICENSE_THIRD_PARTY to show files with special licenses. 2013-04-24 00:12:28 +00:00
linux.mk Rename convert to yuvconvert for linux.mk 2017-07-21 19:05:11 +00:00
OWNERS Add new OWNERS and remove drover.properties. 2016-02-16 19:53:11 +01:00
PATENTS LibYuv: Adding PATENT and LICENSE files 2011-10-25 16:15:49 +00:00
PRESUBMIT.py Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
public.mk Android.mk moved into libyuv to central support 2012-09-19 07:27:17 +00:00
pylintrc Use DEPS for all dependencies + add PRESUBMIT.py 2017-02-03 11:36:53 +00:00
README.chromium Reintroduce the max version of scale 2017-08-14 23:33:56 +00:00
README.md Docs: Fix broken links from README.md 2016-03-15 17:38:14 -07:00
winarm.mk Adds files and functions for rotate any, but does not hook them up to the caller. 2015-07-27 10:32:08 -07:00

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.
  • Convert from YUV to formats for rendering/effects.
  • Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
  • Optimized for SSE2/SSSE3/AVX2 on x86/x64.
  • Optimized for Neon on Arm.
  • Optimized for DSP R2 on Mips.

Development

See [Getting started] 1 for instructions on how to get started developing.

You can also browse the [docs directory] 2 for more documentation.