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README.md

davs2

davs2 is an open-source decoder of AVS2-P2/IEEE1857.4 video coding standard.

An encoder, xavs2, can be found at Github or Gitee (mirror in China).

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Compile it

Windows

Use VS2013 or latest version of visual studio open the ./build/vs2013/davs2.sln solution and set the davs2 as the start project.

Notes

  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: http://yasm.tortall.net/Download.html . A later version 1.3.0 (unofficial revision, please read the instructions of yasm to build it for your work), can be found in https://github.com/luofalei/yasm/tree/vs2013 . 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. 

Linux

$ cd build/linux
$ ./configure
$ make

Try it

Decode AVS2 stream test.avs with 1 thread and output to a YUV file named dec.yuv.

./davs2 -i test.avs -t 1 -o dec.yuv

Decode AVS2 stream test.avs and display the decoding result via ffplay.

./davs2 -i test.avs -t 1 -o stdout | ffplay -i -

Parameter Instructions

Parameter Alias Result
--input=test.avs -i test.avs Setting the input bitstream file
--output=dec.yuv -o dec.yuv Setting the output YUV file
--psnr=rec.yuv -r rec.yuv Setting the reference reconstruction YUV file
--threads=N -t N Setting the threads for decoding (default: 1)
--md5=M -m M Reference MD5, used to check whether the output YUV is right
--verbose -v Enable decoding status every frame (Default: Enabled)
--help -h Showing this instruction

Issue and Pull Request

Issues should be reported here

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

Homepages

PKU-VCL

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

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

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