decode hevc return upsupported

[yangfangfang1204]

let config = { codec: "hvc1.1.6.L123.00", }; VideoDecoder.isConfigSupported(config).then((configInfo) => { console.info(%c1>your browser support 265 hard Decoder, 'color: green'); }).catch(() => { console.warn(%c1>your PC does not support 265 hard Decoder but support 264, if you want to hard decode 265 ,try to update the GPU driver, 'color: red'); });

when i decode the 265 video by webcodecs, VideoDecoder.isConfigSupported() return supported. but when i input 265 video data , it report the error: hardDecode reportError:Unsupported configuration. Check isConfigSupported() prior to calling configure(). state:closed,frameRate:25

some GPU driver update to 2022 , it could play the 265 . and some GPU driver update the latest ，it still cant play 265(above NVIDIA GTX950).

so why it return supported, but cant play ? and why it need the latest(2022) graphics driver ？

[bdrtc]

This should be impl issue of browser, instead of this draft.

[StaZhu]

Can you fire a crbug issue, with chrome://gpu information attached?

Probably because of an exiting issue (https://bugs.chromium.org/p/chromium/issues/detail?id=1384481) fixed in M109, you can download chrome canary to test again if you are referrring to chrome browser here.

[yangfangfang1204]

ok , i test in chrome canary , it did return unsupported , and the second question is why it need the latest(2022) graphics driver ？

[StaZhu]

ok , i test in chrome canary , it did return unsupported , and the second question is why it need the latest(2022) graphics driver ？

Please move our conversation to crbug.com if you may have any future question, thanks!