SIPSorceryMedia.Encoders Why not support VP9

[tangxiaohui1984]

        //var setConfigRes = vpx_encoder.VpxCodecEncConfigDefault(vp8cx.VpxCodecVp8Cx(), vp8EncoderCfg, 0);
        var setConfigRes = vpx_encoder.VpxCodecEncConfigDefault(vp8cx.VpxCodecVp9Cx(), vp8EncoderCfg, 0);
        if (setConfigRes != VpxCodecErrT.VPX_CODEC_OK)
        {
            throw new ApplicationException($"Failed to set VP8 encoder configuration to default values, {setConfigRes}.");
        }

        //var initEncoderRes = vpx_encoder.VpxCodecEncInitVer(_vpxEncodeCtx, vp8cx.VpxCodecVp8Cx(), vp8EncoderCfg, 0, VPX_ENCODER_ABI_VERSION);
        var initEncoderRes = vpx_encoder.VpxCodecEncInitVer(_vpxEncodeCtx, vp8cx.VpxCodecVp9Cx(), vp8EncoderCfg, 0, VPX_ENCODER_ABI_VERSION);
        if (initEncoderRes != VpxCodecErrT.VPX_CODEC_OK)
        {
            throw new ApplicationException($"Failed to initialise VP8 encoder, {vpx_codec.VpxCodecErrToString(initEncoderRes)}.");
        }

Get the latest libvpx source code

Building libvpx:
git clone https://github.com/webmproject/libvpx.git

==> 64 bit build
mkdir build-win-x64
cd build-win-64
../configure --disable-static --disable-examples --disable-tools --disable-docs --target=x86_64-win64-vs17
make
Probably fail due to msbuild not in path but should still produce a vpx.sln
open vpx.sln:

• change "vpx" General->Configuration Type from "Static Library" to "Dynamic Library".
• set the mdoule definition file, Linker->Input->Module Definition File to vpx.def, the file should have been created by the make step.
  change to Release build
  build

vs2022 ---> x86_64-win64-vs17

But it still doesn't work, please tell me how to support vp9

[sipsorcery]

I've never gotten around to looking into trying VP9 so can't offer any advice.