GitLab

Use the kAudioSessionSetActiveFlag_NotifyOthersOnDeactivation flag when deactivating the audio session.

This enables music playing to be restored when a call terminates.

MS_AUDIO_ENCODER_SET_PTIME
MS_AUDIO_ENCODER_GET_PTIME

in the purpose of allowing easy access of ptime for bitrate driver (adaptive rate control algorithm).

Encoders are no longer required to parse "ptime" parameter from fmtp, but instead they should implement these new methods.

Improve protection agains bufferoverflows
Improve multi thread data access protection

since G722 implementation is bit exact and uses 14 bit input, shift input right and left to avoid saturation.
The bit shift should be 2, but for some reason (??) 1 seems enough.

Start/Stop/is_running are thread safe
Wait for all callbacks are done when stopping client