An open-source encoder of AVS2-P2/IEEE1857.4 video coding standard
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luofalei Split `build/vs2013/libxavs2asm` project to three parts to improve th…
…e efficiency on some platforms.

This can help improve about 100% encoding speed on CPU i7-6950X (encoding preset 2). At the same time, the encoding speed is closer to the `linux subsystem on windows`.

More information could be found for VS `warning C4752`, as
Latest commit 2f3f099 Nov 14, 2018


xavs2 is an open-source encoder of AVS2-P2/IEEE1857.4 video coding standard.

A decoder, davs2, can be found at Github or Gitee (mirror in China).

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Build it


Use VS2013 or later version of visual studio to open the solution file ./build/vs2013/xavs2.sln, then set the xavs2 as the start project and build it.


  1. A shell executor, i.e. the bash in git for windows, is needed and should be found in PATH variable. For example, the path C:\Program Files\Git\bin can be added if git-for-windows is installed.
  2. vsyasm is needed and 1.2.0 is suggested for windows platform. It can be downloaded through: . A later version 1.3.0 (unofficial revision, please read the instructions of yasm to build it for your work), can be found in . The installation of vsyasm is as follows (if you were using VS2013):
(1) Copy `vsyasm.exe` to the following directory, 
    "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\"
(2)	Copy the other 3 files in `vsyasm` to the `MSBuild template` directorty, as follows, 
    "C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\BuildCustomizations\"
(3) Re-open the solution. 


$ cd build/linux
$ ./configure
$ make

Try it

./xavs2 [-f encoder.cfg [-f seq.cfg]] [-p ParameterName=value] [--ParameterName=value]

Encode with configuration files

./xavs2 -f encoder.cfg -f seq4K.cfg -p InputFile=input.yuv -p FramesToBeEncoded=500 \
  -p preset=0 -p recon=. -p initial_qp=32 -p OutputFile=test.avs

Enocde without configuraton files

./xavs2 -p InputFile=input.yuv --FramesToBeEncoded=500 --FrameRate=6 \
  --SourceWidth=3840 --SourceHeight=2160 --InputSampleBitDepth=8 --SampleBitDepth=8 \
  --thread_frames=1 --thread_rows=1 --preset=0 \
  --recon=. --initial_qp=32 --OutputFile=test.avs

Issue and Pull Request

Issues should be reported here

If you have some bugs or features fixed, and would like to share with the public, please make a Pull Request.



AVS2-P2/IEEE1857.4 Encoder: xavs2 (Github), xavs2 (mirror in China)

AVS2-P2/IEEE1857.4 Decoder: davs2 (Github), davs2 (mirror in China)