Re: [mediacapture-main] Default device selection and listing inconsistencies (#727)

The concept of default device is highly platform dependent and is not always defined, so the current language of the spec is probably the best we can do. There is no way to define a mechanism in the spec to determine default devices that works for all device kinds and all platforms.
For example, Windows and Mac have very well defined default audio input and output devices, but they do not define any default camera device. Implementations have no problem using the default audio devices. Since there is no concept of default video input device, implementations may use different criteria to decide which device to list first in enumerateDevices.
Since it is impossible to define a mechanism to determine default devices that works for all platforms and device kinds, I don't think there is much that the spec can do beyond the current language encouraging to use system defaults. Thus, closing this issue. 

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Received on Monday, 7 December 2020 17:04:52 UTC