Blur Busters Forums

betonKruglosuTotchno wrote: ↑

27 Nov 2024, 11:59

Sure but unlike more complicated video codecs DSC cannot use previous frames to save quality, so increasing FPS at same bitrate will hurt DSC image much more than it would hurt literally anything else like MPEG4. Consequentially, the quality loss is uniform and can't be improved when the scene has little movement like it happens with literally every common video codec.

Are there any tools I can use to force extreme DSC compression, even where it is not necessary? Even if I have to boot to Linux? I've been so busy with other projects that I haven't done any research on that at the moment.

I should do some experiments on TestUFO with the latest 480Hz OLEDs in 2025, and see if I can concot a TestUFO DSC Motion Test.

I am not aware of any way to force GPU to use DSC except maybe isolating some lanes on the cable (never tried it, have no idea whether it should work). Maybe connecting two or more cables sequentially will make GPU choose lower link speed without failure to connect.

But you should not need it when there is console program for applying compression. If you want to see how video stream would look like you can record it losslessly compressed, separate it into frames, apply compression and then re-merge them losslessly again. It is interesting that you said the DSC can be flawed in monitor but the quality will definitely be same regardless of monitor, it's GPU which decides the compression and there is only one way to decompress.

The resulting video can be also be FPS-reduced (frame skipping or speed reduction) for lossless playback (without DSC).

betonKruglosuTotchno wrote: ↑

27 Nov 2024, 11:59

I would be more than happy to answer any questions regarding using the console tool to get the results but you are not asking them, you just expect the result.

Chief Blur Buster wrote: ↑

26 Nov 2024, 01:44

All of those modes are same number of pixels/sec processing. Quadrupling refresh rate ability via 4x DSC allows a large 4x motion resolution improvement if your frame rate can keep up (e.g. scrolling / panning in apps)!

Sure but unlike more complicated video codecs DSC cannot use previous frames to save quality, so increasing FPS at same bitrate will hurt DSC image much more than it would hurt literally anything else like MPEG4. Consequentially, the quality loss is uniform and can't be improved when the scene has little movement like it happens with literally every common video codec.

Where is the console tool? You posted a dozen links, I can't find it anymore

iopq wrote: ↑

20 May 2025, 10:08

Where is the console tool? You posted a dozen links, I can't find it anymore

It's here:

First of all, DSC is an open standard available from VESA directly for free.
https://vesa.org/vesa-display-compression-codecs/
https://app.box.com/s/vcocw3z73ta09txis ... 1133487793

More specifically: here https://app.box.com/s/vcocw3z73ta09txis ... 3475297509