while calling on android i can't mute/turn off volume of ear piece speaker completely ,because android is in "IN_CALL" mode like GSM call, so i always hear a little sound even i turn volume off. Please correct me if i'm wrong.
So what i want to do is to set the volume = 0 or do not forward audio stream to speaker during call.
I see mediastream2 has filter and it can detach from speaker or rtprecv stream.
i'm thinking about the way to extend linphonecore with an JNI method e.g. turnVolumeOff().
Can i use mediastream lib/.so independently in android client to access audio device during call ?
So what is the correct way to do that ?