Xcode Audiocomponent符号未找到,但无法使用的方法
问题描述:
即时通讯编程新的编程,我只在PHP和Java编程,但我想了解更多的东西。 这可能不是最好的开始与音频的东西,但我已经知道如何编程工作。Xcode Audiocomponent符号未找到,但无法使用的方法
但是,我想测试一下,从Apple网站获取一些代码,看看会发生什么。 我在我的项目中粘贴了代码的开头,并且出现错误。我真的不知道他们的意思,搜索没有给我任何结果。
那代码:
#include <iostream>
#include <CoreAudio/CoreAudio.h>
#include <AudioToolbox/AudioToolbox.h>
#include <AudioUnit/AudioUnit.h>
int main(int argc, const char * argv[]) {
// insert code here...
AudioComponent comp;
AudioComponentDescription desc;
AudioComponentInstance auHAL;
//There are several different types of Audio Units.
//Some audio units serve as Outputs, Mixers, or DSP
//units. See AUComponent.h for listing
desc.componentType = kAudioUnitType_Output;
//Every Component has a subType, which will give a clearer picture
//of what this components function will be.
desc.componentSubType = kAudioUnitSubType_HALOutput;
//all Audio Units in AUComponent.h must use
//"kAudioUnitManufacturer_Apple" as the Manufacturer
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
desc.componentFlags = 0;
desc.componentFlagsMask = 0;
//Finds a component that meets the desc spec's
comp = AudioComponentFindNext(NULL, & desc);
if (comp == NULL) exit(-1);
//gains access to the services provided by the component
AudioComponentInstanceNew(comp, & auHAL);
return 0;
}
,而这些都是错误的,我得到:
Undefined symbols for architecture x86_64:
"_AudioComponentFindNext", referenced from:
_main in main.o
"_AudioComponentInstanceNew", referenced from:
_main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
感谢帮助我!
答
您需要将AudioUnit
,CoreAudio
和AudioToolbox
框架添加到您的项目中。请参阅this answer寻求如何做到这一点的帮助。
如果这是您第一次使用C++的经验,那么您肯定会在深度跳跃。祝你好运!