i.MX ProcessorsのトピックRe: imx vpu wrapper VpuEncOpenParam

imx vpu wrapper VpuEncOpenParam

TDKamil — Fri, 23 Oct 2020 13:40:54 GMT

in VpuEncOpenParam structure there are new fields:

int nFullRange;

int nColorConversionType;

int nStreamSliceCount;

However I cannot find any information about how to use this.
Is there any documentation available?

Re: imx vpu wrapper VpuEncOpenParam

Bio_TICFSL — Mon, 26 Oct 2020 14:06:07 GMT

Hello TDKamil,

You can find all the VPU parameter in the iMX_VPU application Programing document in your yocto documents folder. You can download the documents from:

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applications-processors:IMXLINUX?tab=Documentation_Tab

Regards

Re: imx vpu wrapper VpuEncOpenParam

TDKamil — Tue, 27 Oct 2020 08:42:55 GMT

My kernel is 5.4.24 (from SOMLabs, NXP partner) and I still cannot find those fields (nFullRange, nColorConversionType, nStreamSliceCount) in any documentation.
However when i migrated from 4.14.98 (8mminilpd4-evk) to the 5.4.24 (VisionSOM-8Mmini) with same settings of VPU wrapper (recompiled with proper SDK) the output from video encoder seems broken. It was working perfectly on old kernel. I still can grab video but it seems like there are some changes with VPU wrapper or h264 encoder.

Regards

Re: imx vpu wrapper VpuEncOpenParam

TDKamil — Wed, 28 Oct 2020 08:47:05 GMT

Thank you. Whats the difference between

vpu_wrapper_hantro_VCencoder.c and

vpu_wrapper_hantro_encoder.c

?
Which one should be used for imx8m mini application?