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celli4
New Contributor I
175 Views

8K H264 decode on Skylake?

Ok, somebody has to ask crazy questions around here, and I guess that has to be me.

It looks like Haswell will decode 8K H264 bitstreams, but with the MFX_WRN_PARTIAL_ACCELERATION, warnings, and quite possibly all in software. Meaning there is a Huge performance drop relative to decoding 4K. [in terms of output pixels/persec or output GB/sec, not FPS]

[I get about 250fps decoding 4K H.264 with Haswell, but about 12fps decoding 8K H.264 with Haswell]

Can Skylake decode H.264 8K (7680x4320) without MFX_WRN_PARTIAL_ACCELERATION?

Cam

 

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6 Replies
Surbhi_M_Intel
Employee
175 Views

Hi Cameron, 

Currently, SKL doesn't provide support for H264 8k decoding and is limited to 4K decoding. On SKL, H265 provide support for 8K decoding.

Thanks,
Surbhi

celli4
New Contributor I
175 Views

Is there support for 8K encoding on SKL?

Surbhi_M_Intel
Employee
175 Views

No support for 8K AVC encode and for 8K HEVC I have to consult experts here, will post as soon as I hear anything about it. 

celli4
New Contributor I
175 Views

Very interested to hear about 8K HEVC possibility on SKL
celli4
New Contributor I
175 Views

Surbhi,

Did you hear anything back about 8K HEVC encoding on SKL?

Thanks in advance, Cameron

Surbhi_M_Intel
Employee
175 Views

Hi again,

8K HEVC encoding is not available on SKL due to hardware design. Also, any of the above information is applicable to Media SDK Client and not to Media Server Studio. Media Server Studio plans on SKL will be officially released in sometime. Stay tuned! 

Thanks,
Surbhi

 

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