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CrystalP
Team-Kodi Developer
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ATI shows artifacts at the same timecodes as nVidia but they look different.
MPC-HC and VLC show the same artifacts, there might be something weird in the file. Please try reencoding, and maybe with more conservative options.
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CrystalP
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Don't know about Windows Media Player. You have to explicitly turn on hardware acceleration in VLC. No idea if there is something different with VLC portable.
Tested with a 4550 and G210 here.
The encoding options of x264 (or whatever your encoder is) decide which H264 features the encoder will try to use, some of which may not be properly supported with dxva and/or ffmpeg. I don't know specifics, try forums about encoding.
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I updated the video drivers from 266.58 to 270.61 and still getting artifacts on sample video on HTPC system.
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I updated the video drivers from 270.61 to 275.33 and I'm still getting artifacts on the sample video on HTPC system.