915007 - [B2G] The audio device name is an empty string

Status: RESOLVED WONTFIX

(Core :: WebRTC, defect)

Description

[Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)]

We need a readable microphone name while displaying device selection prompt dialog on FirefoxOS, but AudioDeviceAndroidOpenSLES simply set the device name as an empty string.

Source code is at http://dxr.mozilla.org/mozilla-central/source/media/webrtc/trunk/webrtc/modules/audio_device/audio_device_opensles.cc#l617

Comment 1

[Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)]

I did some experiment on FirefoxOS. The audio frame will be capture from line-in microphone while connecting a headset and will be instantly change to built-in microphone when headset is removed. So, there is only single audio device be available on FirefoxOS. I guess there is no need to provide a readable name for audio device.

Comment 2

[Jason Smith [:jsmith]]

(In reply to Shih-Chiang Chien [:schien] from comment #1)
> I did some experiment on FirefoxOS. The audio frame will be capture from
> line-in microphone while connecting a headset and will be instantly change
> to built-in microphone when headset is removed. So, there is only single
> audio device be available on FirefoxOS. I guess there is no need to provide
> a readable name for audio device.

Are you sure? What happens in the case where I request gUM audio with the internal microphone and a bluetooth headset with a microphone?

Comment 3

[Randell Jesup [:jesup] (needinfo me)]

And does this apply to all FirefoxOS devices, or just to a particular one?

Comment 4

[Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)]

This will work for all devices because the device name "front"/"back" is given by GonkCameraManager, see http://dxr.mozilla.org/mozilla-central/source/dom/camera/GonkCameraManager.cpp#l54

Comment 5

[Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)]

Sorry I mixed up with other bug. Just forget about what says in comment 4.