Enabling Hardware Acceleration (DXVA2) for libvlc 2.2.1 via command line switch from VLCJ

[aitte]

Background:

I have an application built with LibGDX.

I'm using VLC for video playback via VLCJ.

For the Windows deployment, I need hardware accelerated video decoding - which from my understanding will be via DXVA2 on Windows.

However VLC 2.2.1 has DXVA disabled by default, and the command line switches like -avcodec-hw=dxva2.lo from previous VLC versions don't seem to work


How do I set the flags to enable hardware video decoding?

[Rémi Denis-Courmont]

If you don't mind shooting yourself in the foot, you have to make a custom build. Forcing acceleration on VLC 2.x will break decoding on some systems.

[aitte]

Thanks for the quick reply!

- Any recommended guide or documentation on custom building 2.2.1 for dxva?

- In what scenarios will decoding break?

- In my use case I have 100% control of the encoding parameters for the video that will be played back by VLC, is there some recommended format/profile that will work best with DXVA?

- My target device is running a Bay Trail Intel HD Graphics (Z3735F)

[Rémi Denis-Courmont]

Depending on hardware and drivers.

[rocky]

What about

- Any recommended guide or documentation on custom building 2.2.1 for dxva?

- In my use case I have 100% control of the encoding parameters for the video that will be played back by VLC, is there some recommended format/profile that will work best with DXVA?

- My target device is running a Bay Trail Intel HD Graphics (Z3735F)