added ofxiOSSoundPlayer getAVSoundPlayer() method.

[julapy]

ofxiOSSoundPlayer getAVSoundPlayer() returns a pointer reference to the native AVSoundPlayer object.
this is important to have for the user to have access to the obj-C code.
this is the same as in the ofxiOSVideoPlayer.

[julapy]

@ofTheo @admsyn you guys ok this?

[admsyn]

Makes sense to me 👍 It's been a bit since I've Obj-C'd, but shouldn't this have some sort of ARC __bridge cast though?

[ofTheo]

Looks good to me!

[Ahbee]

if you are using ARC it should be

return (__bridge void*) soundPlayer;

which tells the compiler that no transfer of ownership is being done.

[julapy]

hmmm im not sure the __bridge is necessary here.
both ofxiOSSoundPlayer and AVSoundPlayer are non-ARC as they manage they manage the memory of their objects using retain/release. even in a ARC project, these two files would still be flagged as non-ARC.

also, as far as i can tell, the __bridge syntax is only used when transferring Core Foundation objects to obj-C objects. not sure it applies to other cases, as far as i can see...
https://developer.apple.com/library/mac/documentation/corefoundation/Conceptual/CFDesignConcepts/Articles/tollFreeBridgedTypes.html

[admsyn]

Yepp, it isn't. I spaced and forgot OF wasn't using ARC :)

[julapy]

cool thx for confirming @admsyn
i'll merge this now.