Test built-in audio/video preview

[mjbvz]

Test for #159106

• Mac @lszomoru
• Linux @rzhao271
• Windows @amunger

Complexity: 4

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Summary

We now include a basic preview for audio and video files. For this test plan item, test out the basic functionality of these new previews

Testing

• Try opening audio files in VS Code

  The following formats should work: mp3, wav, ogg

• Try opening a video file in VS Code

  The following formats should work: mp4, webm

Both of these previews use Chrome's built-in controls. This limits our ability to customize and theme. I opted to use these controls so we don't have to maintain our own code here. They also match how other video/audio files are rendered in VS Code (such as in notebooks)

[usernamehw]

.opus doesn't work. It seems like they are not in the list of added codecs #156558 (comment)

[amunger]

webm and .opus both just have an error messsage when attempting to open on Windows (screenshot). and mp4 does not have audio available (linked issue)

[mjbvz]

@usernamehw Thanks. Yes should be ogg instead of opus

[mjbvz]

@amunger webm works for me. Can you please share the file that doesn't work:

[amunger]

sample_960x540.webm

[mjbvz]

@amunger Thanks. The issue is that the video from your example is vp9, while we only support vp8 (the example I tested was using vp8)

webm is a container format, which makes it hard for us to know if the video will actually be supported as or not until we try opening it

[amunger]

✅ .ogg