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<blockquote data-quote="Owlsroost" data-source="post: 1250331" data-attributes="member: 83973">I've now done a fair amount of testing using 8 &amp; 10 bit HEVC and H.264 files (generated at several different resolutions using Handbrake from the same 4k source file).Results match what JSchuricht found - all the files play OK in MP2 except for 10-bit 4k HEVC using DXVA.Lower resolution 10-bit HEVC e.g. 2560 x 1440p play OK using DXVA, and all files play OK using software decoding.Sometimes 10-bit 4k HEVC using DXVA will play for a short time then freeze, or will play with very major stutters.Bitrate does not seem to make a difference - I've tried 25/50/100 Mbps.8-bit HEVC and 10-bit H.264 4k both play OK using DXVA.So it *feels like* the basic DXVA connection/negotiation is working OK, but that there is a performance issue somewhere in the way MP2 is feeding data into/handling the graph when DXVA is in use.MPC-HC and MP1 can play 4k 10-bit HEVC using DXVA with no problems.Tested on a very fast PC using an i7-8750H ('Coffee Lake' generation), with the latest Intel GPU drivers.</blockquote>

[QUOTE="Owlsroost, post: 1250331, member: 83973"] I've now done a fair amount of testing using 8 & 10 bit HEVC and H.264 files (generated at several different resolutions using Handbrake from the same 4k source file). Results match what JSchuricht found - all the files play OK in MP2 [B]except [/B]for 10-bit 4k HEVC using DXVA. Lower resolution 10-bit HEVC e.g. 2560 x 1440p play OK using DXVA, and all files play OK using software decoding. Sometimes 10-bit 4k HEVC using DXVA will play for a short time then freeze, or will play with very major stutters. Bitrate does not seem to make a difference - I've tried 25/50/100 Mbps. 8-bit HEVC and 10-bit H.264 4k both play OK using DXVA. So it *feels like* the basic DXVA connection/negotiation is working OK, but that there is a performance issue somewhere in the way MP2 is feeding data into/handling the graph when DXVA is in use. MPC-HC and MP1 can play 4k 10-bit HEVC using DXVA with no problems. Tested on a very fast PC using an i7-8750H ('Coffee Lake' generation), with the latest Intel GPU drivers. [/QUOTE]

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