Changes between Version 64 and Version 65 of Getting-Started/iPhone

Timestamp:

Jul 15, 2014 4:55:41 AM (10 years ago)

Author:

nanang

Comment:

Add info for audio lost after interruption on iOS 7

Getting-Started/iPhone

@@ -175 +175 @@
 For more details, please refer to Apple's doc on [http://developer.apple.com/library/ios/#documentation/EventHandling/Conceptual/EventHandlingiPhoneOS/RemoteControl/RemoteControl.html Remote Control of Multimedia].
 
+=== Audio lost after interruption (iOS 7) === #interruption2
+
+It has been reported that any time an audio interruption happens, audio is lost until the application is killed/restarted, also reported that this occurs only on iOS7.
+
+Here is the reported working solution:
+ - application should be configured to receive interruption events, see also [#interuption problem with interruption].
+ - forcefully shutdown the sound device when interruption begins, e.g: using {{{pjsua_set_no_snd_dev())}}} for pjsua, or {{{AudDevManager.setNoDev()}}} for pjsua2
+ - restart the sound device after interruption ends, e.g: using {{{pjsua_set_snd_dev()}}} for pjsua, or {{{AudDevManager.setPlaybackDev()+setCaptureDev()}}} for pjsua2.
+
+Also note this is the recommended outline of the normal flow for audio interruption:
+ - on interruption begin
+   1. hold the calls
+   1. stop any other media if any (i.e. disconnect all connections in the bridge)
+   1. by default, sound device will be stopped after some idle period after there is no connection in the bridge, or alternatively just forcefully shutdown the sound device.
+
+ - on interruption end
+   1. unhold the calls
+   1. resume any other media if any
+   1. if sound device was not shutdown forcefully, first connection to the bridge will cause sound device to be started, otherwise manual restarting the sound device, by setting playback & capture device, is required.
+
+
 === Sound not working in the simulator ===