OneVPL JPEG Encoding with HW Acceleration

[OllieB]

Hi,

I am trying to leverage my integrated GPU (Intel UHD Graphics (9A60)) to accelerate the encoding of a live video stream from a webcam. I am using the OneVPL Dispatcher & Implementation. The output encoding needs to be JPEG to support my existing software stack.

I am getting the input video stream from opencv - this is in BGR format, stored in a cv::Mat object from which I can extract the RGB values of each row of pixels.

On the Programming Guide section on Encoding, it suggests that I should be able to encode RGB images by setting FourCC to MFX_FOURCC_RGB4 and ChromaFormat to MFX_CHROMAFORMAT_YUV444. I also set Quality to 100.

I queried the encoding parameters using MFXVideoENCODE_Query and it gave an error status of MFX_ERR_UNSUPPORTED. However, I found that the hello_encode sample gives exactly the same error status but is able to successfully encode NV12 inputs to H265. 

I've attached some source code to demonstrate the problem. I'm aware that I may not be correctly populating the surface with my BGR image data but I'm not convinced that that would result in the error I'm getting. 

Could you please help? Happy to provide further information as required.

n.b. to run the attached code you'll need opencv (and of course OneVPL!) linked etc.

[RajashekarK_Intel]

Hi, Thanks for posting in Intel communities.

It would be great if you can provide below details to debug and reproduce your issue from our end.

1. Processor Information:

2. OS Details:

3. oneVPL Version:

4. oneVPL GPU Runtime version: 

5. Your sample video as a zip file if possible.

Regards,

Rajashekar

[OllieB]

Hi Rajeshekar,

Thanks for the reply. The information is as follows:

1. Intel Core i7-11800H

2. Windows 10 Pro Build 19045

3. 2023.1.0

4. I'm not sure where to find this info. The listed "API version" from the samples is 2.3 if that's the one. 

5. As I mentioned in my original message, I am trying to stream videos from the webcam, so my use case doesn't involve reading from file.

[RajashekarK_Intel]

Hi @OllieB ,

Thanks for providing the details.

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

Regards,

Rajashekar

[RajashekarK_Intel]

Hi @OllieB , Good day to you.

We were able to reproduce your issue with SYSTEM_MEMORY, could you try VIDEO_MEMORY under encoding parameters.

encodeParams.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY;

If this resolves your issue, make sure to accept this as a solution. This would help others with similar issue.

Thanks & Regards

Rajashekar.

[RajashekarK_Intel]

Hi, Good day to you.

We have not heard back from you. Is your issue resolved with the given solution? If this resolves your issue, make sure to accept this as a solution. This would help others with similar issue.

Regards,

Rajashekar

[RajashekarK_Intel]

Hi,

We assume that your issue is resolved. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Regards,

Rajashekar