WebCodecs not supported on Google Chrome version 127 on Ubuntu system

[AAT290]

I'm trying to use webcodecs on Google Chrome on the ubuntu system，Use the VideoDecoder.isConfigSupported(config) method，The details are as follows：
VideoDecoder.isConfigSupported(avcConfig).then((avcConfigInfo) => {
let supportflag = avcConfigInfo.supported;

The result is not supported，The supportflag value is 0，I don't know what the reason is；

Here's what my computer is configuring：
Google Chrome Version：127.0.6533.119 (Official Build) (64-bit)
Ubuntu 18.04.1 LTS
Intel Core i7-8700K CPU @ 3.70GHz x 12
Intel UHD Graphics 630 (Coffeelake 3x8 GT2)
OS type : 64-bit

[pransh15]

That's odd, @AAT290. I can see that it is fully supported on Chrome, on the page: https://developer.mozilla.org/en-US/docs/Web/API/VideoDecoder/isConfigSupported_static#browser_compatibility

I understand this is not expected behavior, but can you please open an issue for this so I can bring it to the team? 👀

[AAT290]

thanks, I would like to open an issue for this，What should I do？

[Josh-Cena]

The browser compat table tells you that the isConfigSupported function is supported. It doesn't tell you any particular config is supported. Unfortunately, I don't think support for media formats is tracked by the browser compat data. What is the specific config content you are testing, and why do you think it should be supported? Do you have references that it's supposed to work on this platform?

[AAT290]

I wrote a demo and tested whether hardware decoding can be turned on on different platforms, including windows and ubuntu platforms, the encoding format of the test data is H265, the video resolution is 1080P, and I have no references that it's supposed to work on ubuntu platform，this is my first time testing on ubuntu platform，I just tested and found that it doesn't support，but the browser version is sufficient，so I don't know why，and I would like to seek some advice；
I typed the URL into Google Chrome as chrome://gpu/ and the result was as follows：Video Decode: Hardware accelerated

[Josh-Cena]

If the browser claims that a codec doesn't work, then either the method is invoked incorrectly, or the codec indeed doesn't work, or there's a browser bug—unfortunately we don't know and you should probably ask on a channel with Google engineers involved.