Lav video dxva2 native vs copy back

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Active topics Unanswered topics. You must login or register to post a reply. RSS topic feed. I used D3D11 Native to test and I think it is working ok. D3D11 decodes frames from video stream and leaves them in video memory. SVP needs these frames in operational memory.

Lav video dxva2 native vs copy back

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Decoding it to RGB then should look like this:. Color image pipeline - Wikipedia. Sort by Oldest first Oldest first Newest first Most reactions. Unfortunately DXVA Hardware decoding uses as a default output NV12 There is added one additional unnecessary conversion and probably some loss of quality. Mostly its applied on hardware level, but the calibration software delivered with the monitor creates also ICC profile. Its best to use both of them. One step is redundant and can be skipped. This was more of a concern in a past since this conversion crippled performance of a TV Tuner capture. My output looks like this. I used madVR because MPC indicates lowest sync offset and no jitter at all, while framedrops are reported only when resizing the window. Renderer isnt apparently even aware of the original format, but the pin in LAV filter has the data about H

I'm not even sure which model TVs can even display a 4k The movie file, itself, is sitting where?

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. User Name Remember Me? What's the difference between Copyback and Native? I would assume that "copy back" means that the decompressed frames are copied back to main memory after they have been decompressed by the graphic card's hardware decoder. At the same time "native" probably means the default behavior of DXVA, i. That's what you would want for "playback only".

Corporate Solutions: Overview Customers Company. Home Download Purchase Support Company. Please login or register. Pages: [ 1 ] Go Down. CUVID forces the graphics card into its highest performance state. One of the reasons to use hardware accelerated decoding is to reduce power consumption. With a high powered graphics card such as my GTX , most of that benefit is lost. This can be a problem with hardware acceleration in general seems to be less tolerant than software decoding but seemed to be more of an issue with CUVID. I haven't done extensive testing of this though.

Lav video dxva2 native vs copy back

MediaPortal 1. After clicking on the screwdriver icon next to the LAV Video Decoder, you'll be presented with the following settings screen:. DXVA implementations come in two variants: native and copy-back. Almost all implementations are of the native type. The LAV video decoder that is included in the pack offers both variants. With the native type, the decoded video stays in GPU memory until it has been displayed.

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Joined Dec 28, Top Contributors this Month View All. Find More Posts by heyer. Quote from: justsomeguy on May 07, , pm. This is an older thread, you may not receive a response, and could be reviving an old thread. The problem with mine, that I haven't figured out, is that if I set it to automatic, when I play an UHD movie and jump ahead, the video freezes while the audio keeps going. Find More Posts by EpsilonX. Solution Chosen by PJay. But for Rec. VendorId list: Code: [Select]. The time now is

Our decoding and rendering benchmarks consists of standardized test clips varying codecs, resolutions and frame rates being played back through MPC-HC. The former provides hints on whether frame drops could occur, while the latter is an indicator of the efficiency of the platform for the most common HTPC task - video playback.

Theoretically there should be no difference whether TV is receiving 24 or but in reality there might be some small differences depending on the video processor or the way the panel is being driven when at higher refresh rates. For a better experience, please enable JavaScript in your browser before proceeding. The scaling is just taking your source and outputting to the window or desktop size. What ladder would be better? Page of Quote from: mrfx on May 01, , am. Hopefully nevcairiel will weigh in. Remember Me? Page tree. Ask a question Answers will be sent directly to your email. Explore Our Forums. As long as you're aware that Smooth Motion will produce many blended frames with Quote from: on May 03, , pm. I would assume that "copy back" means that the decompressed frames are copied back to main memory after they have been decompressed by the graphic card's hardware decoder.