iPhone/iPad开发札记 2012/02/24

1. My Own SpeakHere project 

*  遗留问题

录制时崩溃

播放停止时的通知

*  问题解决：播放停止时的通知

需要在初始化audio queue的时候注册property change处理程序

InitNewPlaybackQueue()

// set a property listner for running status

XThrowIfError(AudioQueueAddPropertyListener(mQueue,kAudioQueueProperty_IsRunning, isRunningProc, this),"adding property listener");

2. reading XCode document: Core Video Programming Guide 

Core Video is necessary only if you want to manipulate individual video frames. 

3. Reading Getting started with Audio & Video 

4. Reading Multimedia Programming Guide - Using Video 

Still questions: 

* What to use for recording video and send it out ?

* What to use for display video from other side ? ( like internet ? )