Decoding speed

This is the home of QuickSync (aka Intel Media SDK) stuff.
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DJATOM
Posts: 22
Joined: Fri Oct 16, 2015 6:14 pm

Decoding speed

Post by DJATOM » Sun May 20, 2018 2:18 pm

Recently I've built vslsmashsource.dll with last available ffmpeg libs. As result I can decode H264 with cpu, cuvid and quicksync decoders from lsmas.LWLibavSource.
While testing, I found that DGDecodeNV and cuvid decoder from vslsmashsource performs on approx. the same speed (250 fps on my GTX 750), DGDecodeIM and qsv decoder differs: ~120 fps vs. ~380 fps (i5-4670k). Is there some limitation in DGDecodeIM?

P.S.: I know you're busy with tonemap stuff right now, so feel free to check things here once you done with it.

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admin
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Joined: Thu Sep 09, 2010 3:08 pm

Re: Decoding speed

Post by admin » Sun May 20, 2018 4:09 pm

To be honest, DJ, I haven't looked at DGIM stuff for many years and it's still using an old Intel SDK. Let me get the next release of DGHDRtoSDR out and then I'll have a look at it. I placed a shortcut to this thread on my desktop so I don't forget.

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