MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub

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MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub Empty MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub

Post by xomuz Wed Sep 13, 2023 3:00 am

MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub even very short videos it's just still frame with 'Playing' arrow active and I can just jump forward and backward
Standard Pack installed with all default selections
What's interesting Films & TV app plays it perfectly fine same as VirtualDub natively
VLC struggle to play it and it's a slideshow

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MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub Empty Re: MPC-HC doesn't play uncompressed 4K AVI video from VirtualDub

Post by Admin Wed Sep 13, 2023 12:01 pm

Which colorspace format?

Upload a short sample file.

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Post by xomuz Wed Sep 13, 2023 11:39 pm

Admin wrote:Which colorspace format?

Upload a short sample file.
YUV 4:2:2 https://drive.google.com/file/d/1XFBctXI9LbcA7SF0gBIJ8hJPGUhCqR9s/view?usp=sharing

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Post by Admin Thu Sep 14, 2023 1:11 am

The video hanging seems to only happen with MPC Video Renderer. Not with EVR-CP. I am not sure why that happens. It doesn't hang at lower resolution.

The stuttering is due to too slow reading of data. Its a bit smoother when replaying (when data is cached in memory). Not surprising at 1 GB per second. You would need a SSD for such read speeds.

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Post by Admin Thu Sep 14, 2023 1:36 pm

Please leave the file online for a while, so I can forward it to MPC Video Renderer developer.

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Post by xomuz Thu Sep 14, 2023 9:47 pm

Yeah 1080p works fine
Films & TV app on windows 11 plays it without a problem in 4K
Drive is M.2 7GB/s

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Post by Admin Fri Sep 15, 2023 1:55 pm

What helps is to increase the "Queue Settings" in LAV Splitter. For example 4096MB and 50000 packets. Then it buffers more data.

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