Playback errors when trying to play embedded video in `lab_demo` in VS Code desktop on macOS

[dmalan]

[rongxin-liu]

Not a bug or maybe a VS Code bug. I can't get it work on VS Code Desktop version but works ok on Codespace.

[dmalan]

Mind checking what audio and video codecs that video uses?

[rongxin-liu]

VP09 / OPUS

[rongxin-liu]

YouTube playback issue: microsoft/vscode#158858
MP4 playback issue: microsoft/vscode#158972

[dmalan]

Just to close the loop here, possible for us (or VS Code) to compel the player to fall back on H.264 instead somehow, as in your browser-based tests a while back? Possible to simulate, perhaps, by executing a command in VS Code's developer console?

[rongxin-liu]

Not possible from my experiment. Had tried injecting these codes in our lab.js script to suppress VP09 but no luck.

Best to have VS Code support VP09/OPUS codec.

[rongxin-liu]

I also tried playing back our mp4 file from the CDN, but no audio it seems. I think this is because all our videos use aac codec for the audio, but VS Code desktop doesn't support this codec. Not sure why such popular/basic aac codec is not supported.

microsoft/vscode#158972