OneVPL sample encode VBR mode failed in the end of process with MFX_ERR_INVALID_VIDEO_PARAM

[RomanKopytin]

Hi, dear media team.

I have issue with latest release of the OneVPL.

I want to use SW library from the package with VBR mode but it has error in the end of processing.

SW library is C:\Program Files (x86)\Intel\oneAPI\vpl\2022.2.0\bin\libvplswref64.dll

CL: sample_encode.exe h264 -vbr -i D:\Streams\in.yuv -o D:\Streams\out.h264 -w 1920 -h 1080 -b 1500 -r 1 -f 30 -timeout 20 -sw

On HEVC no issue.

CPU

11th Gen Intel(R) Core(TM) i7-11370H @ 3.30GHz

Driver 27.20.100.9664

[AlekhyaV_Intel]

Hi,

We are working on this internally. We will get bck to you soon with an update.

Regards,

Alekhya

[AlekhyaV_Intel]

Hi,

We were able to reproduce your issue with the command you've run. Please try running your command prompt as an administrator & try with hardware implementation as below:

sample_encode.exe h264 -vbr -i input.yuv -o output.h264 -w 1920 -h 1080

Regards,

Alekhya

[RomanKopytin]

Thanks, but we need to have SW. With HW we haven't got any issues.

[AlekhyaV_Intel]

Hi Roman,

We got an update from the Dev team that oneVPL Software implementation is a reference implementation. So, we don't expect it to support VBR for all codecs. One known limitation is, encoders with CBR & VBR rate control, big resolution, and small max bitrate may fail. 

Here is a Media SDK article that discusses the impact of different metrics for CBR/VBR:

https://www.intel.com/content/www/us/en/developer/articles/technical/common-bitrate-control-methods-in-intel-media-sdk.html

If this resolves your issue, make sure to accept this as a solution. This helps others with similar issue. Thanks!

Regards,

Alekhya

[AlekhyaV_Intel]

Hi,

We are assuming that your issue is resolved. If you need any further assistance, please post a new question as this thread will no longer be monitored by Intel.

Regards,

Alekhya