PRO TIP i had a similar issue and it wasnt related to the HEVC codec as i had it installed from windows appstore already.
I went to my photos app or media player and uninstall then reboot and reinstall or in this case the windows photos i reset it and tried repair it or uninstall reinstall if that were possible and it fixed the issue for me. further on notes about HEVC
fake hardware cant do the proper HEVC or isnt allowed to licence it so they fake youtube videos saying not to use HEVC
if you bought AMD hardware its licenced to encode in HEVC.. AMD invented HEVC in like the 70's after all and sold it to china when americans didnt wanna pay for it. used to be used for say compressing satellite video feeds and other stuff.
So you see your amd card can do it, sites like googles youtube would need to licence it for distribution when it would be being distributed by you for you with your uploaded content on youtube and since fake hardware companies that ARENT AMD cant do it.. they need to make their own sort of is absurdly like HEVC but isnt HEVC free open VP9 codecs from google so they dont get sued. But for its intended use case for playback a $1 microsoft or free OEM codec licence for HEVC lets you encode and play back.. its just commercially selling it on say a bluray disc or distributing may require a licence and probably for you to bundle the codec with it for playback as its a requirement.
Since what youtube serves up they are legally responsible for the second you try to upload anything it becomes AV1 or VP9ver2 or Mp4 AVC or other open formats in WEBM. its much cheaper this way.. but like even your samsung phones and other devices capture in HEVC and play back in HEVC and netflix streams in it.. you see its the industry standard and the hardware video decoding on your AMD card.. its MADE FOR USING HEVC. TRUST ME ITS WORLDS BETTER. so you have to copy the HEVC file into your graphics card with directtransport or directstorage or directtransfer maybe? use fullscreenexclusivemode playback possibly? (recently win11 not so much a requirement) you copy the file to the graphics card with a bitstreaming or passthrough mode. Simply toggling DXVA2 and praying it works isnt the 'cure all' we'd love for it to be. theres actually AMF advanced mediaframework or was it ML medialibrary? AVX (is that a security thing for CPUs? eh hollywood suck) or umm countless other words or output methods using direct3d renderer version 11+ or directdraw or a vulkan video renderer of some kind exists im fairly sure. opengl cant do much of the same things though sadly its not a viable alternative as they dropped OPENGL NEXT or 2.0 in favour of VULKAN which was superior as it uses decades old AMD military software API that was crippled and slowed down and had junk piled all over the top of it by about 30 companies that managed to acquire MANTLE API known as KHRONOS GROUP.
So uhh basically feel free to capture and playback in HEVC assuming you have the codec for decoding installed for HEVC playback. Your phones and everything else uses it too.. even photos are HEIC and use HEIF formatting which allows for bokeh effects and other cool stuff to do with background and foreground editing and multiple shots or focal depths in the one photo.
But most people dont know only the rights holder the one person on the planet can sue you or take issue with your usage of HEVC inappropriately if its not used for profit involving sums of money over what you'd pay taxes on in a year like here in australia once you make more than 15k per year you must file for a tax number and business number and document and pay taxes on it. If you were pirating and using HEVC for internet streaming like netflix without paying them and earn more than say 50k$$ you'd be done by the police for piracy and its no longer a court matter or issue settled civilly by complaints from the RIGHTS HOLDER outside of court or in court for small claims sums of petty court amounts in a few hundreds or thousands judge judy style. The problem is when organizations with many members perform piracy with it. the lot of them might get prison time or huge fines which goes to the government who are charging you with the piracy not anybody else via the police.
so your kid filming in HEVC for 2x image quality 1/4 file size compared to most AVC? then yeah its fine if his phone uses HEVC and his PC plays it back.. its also fine if he uploads it to youtube or others as they just re-encode it to their free VP9 or others anyway. So umm point im making is.. USE THE INDUSTRY STANDARD HEVC CODEC TVS AND GRAPHICS CARDS WERE BUILT FOR. it saves battery and all sorta cool stuff if your hardware can do it and not fake it with software like some green devices.
