leo.bugzilla.gecko Reporter
	Description • 11 years ago

[VER.]
BuildID revision="7cb46499e0b91ca20f6aed58d6067d7c451875b9"
gaia revision="5cbb19e4bb78a7ad879fbe4b9a841e1c35714f5c"
gecko revision="950b402b6188bb2f3ce3176e620ed5249719d720"

[Precondition]
- Insert the HEADSET
- Open the FM 
- Play a channel
- Now, make the volune zero from side volume button
-  Remove the HEADSET
-  wait for message to diaply that "FM Radio requires a plugged in headset to recive radio signals "
-  insert the HEADSET
- wait to powen on the FM
- increase the volume 

[Symptoms]
FM volume is not updated. But, other volume is updated.

The resean is "mFMChannelIsMuted" variable in SetStreamVolumeIndex(AudioManager.cpp)
FM Volume usually set AUDIO_STREAM_MUSIC stream by volume up-down button.
But by headset ejecting/inserting, call CanPlayChanged() in FMRadio.cpp and set volume 0 as AUIOD_STREAM_FM. 
You should unify audio stream value(AUDIO_STREAM_MUSIC/AUIOD_STREAM_FM) or change "mFMChannelIsMuted" value

Anyway AudioPolicyService is set AUDIO_STREAM_MUSIC even if FM volume come from FM/MUSIC stream value.

	Randy Lin [:rlin] - Be Mozillian on 2015/01/26 Assignee
	Comment 1 • 11 years ago

Hi Michael, 
Due to we has implemented the switching-off the audio path when audiochannelService was triggered to mute the FM sound, so those code can be removed and fix this bug.

	Ryan VanderMeulen [:RyanVM]
	Comment 3 • 11 years ago

https://hg.mozilla.org/projects/birch/rev/64c5d1f3d728

	Ryan VanderMeulen [:RyanVM]
	Comment 4 • 11 years ago

https://hg.mozilla.org/mozilla-central/rev/64c5d1f3d728