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h265 hardware decoding not working during rendering

Community Beginner ,
Apr 15, 2023 Apr 15, 2023

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For a while now i have been using premerie quite happily but one issue has plauged me. for some reason my GTX 1070's NVENC decoder will never contribute to the rendering process at all. i have searched all over multiple times to try and fand an answer as to why this happens and the answer continues to illude me. the mosat frustrtating part is the decoder works everywhere else i need it to. in the editing timeline no problem, you tube video's no sweat, watching video recordings it's covered. 

 

for a bit more context i record with obs using h.265 80+Mbps 4:2:0 8 bit. it was my assumption that whatever i can record with NVENC it should be able to decode just fine and outside of rendering that is true

so my questions are why isn't my GPU decoding during rendering and shifting all the work over to my CPU? and is there any place that clearly states the full capability of the Nvidia NVENC decoder capabilities?.

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Hardware or GPU

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Community Expert ,
Apr 15, 2023 Apr 15, 2023

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Moved to the Video Hardware forum.

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LEGEND ,
Apr 16, 2023 Apr 16, 2023

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First of all, which CPU do you have?

 

Second, if your CPU is a recent Intel CPU, is the integrated Intel UHD Graphics (if there is one) enabled? This is important as it enables the Intel Quick Sync hardware decoder. If this were the case, then, then Adobe's decoder heavily favors the integrated on-CPU graphics processor.

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Explorer ,
Jun 16, 2023 Jun 16, 2023

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My video decoding is not working at all in the timeline with an RTX 3090. Adobe please fix. It's a HVEC file that should be fully supported by both Premiere and the GPU as per the documentation.

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