Unable to increase playback speed.

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Unable to increase playback speed.

Post by btgbullseye on Wed Aug 06, 2014 9:53 am

Ok, so I'm using the latest codec pack as of August 5th 2014 (10.6.4 Mega) LAV and AC3Filter for everything, ffdshow for raw video, MadVR renderer, Windows 7 Ultimate, Nvidia CUVID...

It is currently impossible to have ANY file type playback at higher than 1.00 rate in MPC-HC.

Any way to fix this?

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Re: Unable to increase playback speed.

Post by Admin on Thu Aug 07, 2014 12:22 am

Increasing playback rate only works if all filters in the chain support it. I have tried with the same set of filters and increasing the rate working fine. However, I can imagine that it fails because of a performance bottleneck.

Some things you can try:
1) DXVA2 copy-back instead of CUVID, or even software decoding
2) different video renderer, or less heavy settings in madVR
3) disable processing filters in ffdshow

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Re: Unable to increase playback speed.

Post by btgbullseye on Tue Aug 12, 2014 12:42 pm

I've tried everything except changing away from CUVID, including changing renderers...

Just tested all other decoding acceleration techniques... No speed increase ability. (and CUVID has nice hardware-based deinterlacing, so I'm sticking with that when possible)

This officially makes it to where I have tried all possible settings and settings combinations of that renderer and splitter combination, including on the newest updated codec pack. (10.6.5)

Just in case it is a hardware problem: I'm running everything on a Lenovo G780 laptop with a GT630m 2GB dedicated video card, an i5-3210m processor, and 8GB of 1600 RAM with low latency.

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Re: Unable to increase playback speed.

Post by Admin on Wed Aug 13, 2014 7:39 am

If your objective is to "fast forward", then another method would be to use the jump function. Ctrl+Left/Right does a 5 second jump.

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Re: Unable to increase playback speed.

Post by btgbullseye on Sat Aug 16, 2014 2:16 pm

Yes, I do that already, but I also have some video that I wanted to play back at 1.25x-2.5x speed. The goal is not to jump to a later time, but to be able to fully observe the video in it's entirety at a faster rate. (for example watching 80 hours of security camera video in real time looking for a certain individual that shows up for 10 seconds is impossible to do without it being a full-time job)

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Re: Unable to increase playback speed.

Post by Admin on Sun Aug 17, 2014 12:47 am

I understand.

I have no idea why it doesn't work on your system. You could try with VLC player instead for this specific use case.

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Re: Unable to increase playback speed.

Post by btgbullseye on Mon Aug 18, 2014 6:29 am

I'll give it a go, thanks for trying. Smile

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Re: Unable to increase playback speed.

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