VPU Encoder clarification

itzikperetz — Sun, 25 Oct 2015 06:27:19 GMT

I have some other questions:

1. Can you explain me what is the sliceMode parameter in the encoder?

2. What the differences between the available modes? Is sliceSize related to NALU Size?

3. I saw that the encoder only supports Base profile, but i didn't see any limitation regarding to set H264 level. Can you explain me how to set the level for the encoder?

Thanks,

Itzik

Re: VPU Encoder clarification

Yuri — Mon, 26 Oct 2015 06:33:22 GMT

Hello,

“A slice is a spatially distinct region of a frame that is encoded separately from

any other region in the same frame. In that standard, instead of I-frames, P-frames,

and B-frames, there are I-slices, P-slices, and B-slices”.

As for VPU slice mode details, please take a look at section 3.2.2.10 (EncSliceMode)

of “i.MX_6_VPU_Application_Programming_Interface_Linux_Reference_Manual.pdf”.

As for profile and level setting, please refer to section 3.2.2.4 (EncHeaderParam).

https://www.freescale.com/webapp/Download?colCode=L3.14.28_1.0.0_iMX6QDLS_BUNDLE&appType=license&location=null&fpsp=1&WT_TYPE=Board%20Support%20Packages&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=gz&WT_ASSET=Downloads&fileExt=.gz&Parent_nodeId=1337723891654732089522&Parent_pageType=product

Have a great day,
Yuri

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topic Re: VPU Encoder clarification in i.MX Processors

VPU Encoder clarification

Re: VPU Encoder clarification