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Re: [mediacapture-main] what is the default channelCount (#775)

From: Jan-Ivar Bruaroey via GitHub <sysbot+gh@w3.org>
Date: Tue, 02 Mar 2021 19:36:30 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-789161035-1614713789-sysbot+gh@w3.org>
> > Give us whatever the underlying system gives us for default channel count, frame size, frame rate, etc. The OS knows better than the user agent does.
> On one hand I hear that the OS provides meaningful defaults...

@henbos Yes. The OS has a default device with specific capabilities that influence what settings sites get by default:
(await getUserMedia({audio: true})).getAudioTracks()[0].getSettings().channelCount // 1 or 2 ?
It seems irrelevant to an app and compat whether 1 or 2 is decided by:
A. which OS device is the user default
B. A user having picked a different device in Firefox's microphone picker, or
C. A linux user reconfiguring properties of the device driver of the device from A or B.

This is all under "user agent", and not the spec. Specs generally shy away from dictating the relationship between the user and their agent.

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Received on Tuesday, 2 March 2021 19:36:32 UTC

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