How do I force the MediaSDK to decode on CPU?

[kreuzerkrieg]

Hi,

Consider following scenario, I'm decoding on GPU using HW implementation and I've exhausted all GPU resources. Now I would like to switch to CPU decoding. How do I achieve it, what kind of device I have to create? Do I have to use system memory in case of SW implementation?

EDIT001: Ok, looks like I know how to force decoding to work with CPU only, however I cant get the VPP working with SW implementation. Tried the sample_vpp and sample_decode examples, both fail with -3 when the MFXVideoVPP's Init is called. Then I found this https://software.intel.com/en-us/forums/intel-media-sdk/topic/639188 , where the following stated "Currently, VPP composition is not supported or possible in SW mode.". The question is what else does not work in SW mode?

[Stav_S_Intel]

Hi, 

Sorry for the long delay.

The support of SW & HW modes change frequently according to MSDK version. 

The best way to find out is to read the documentation with the SDK- release notes will update you on new feature available, sample notes will let you know about restrictions.

Regards,

Stav