fmod

一、前言 这个控件源自于一个音乐播放器，在写该音乐播放器的时候，需要将音频的数据转换成对应的频谱显示，采用的fmod第三方库来处理（fmod声音系统是为游戏开发者准备的革命性音频引擎，非常强大和牛逼），fmod负责拿到音频数据对应的采样频谱数据，然后传给这个控件进行绘制即可，本控件主需要专注于绘制即可，这样fmod对应封装的类专注于音频采集等处理，实现了隔离，修改和增加功能比较方便，声音波形图控件除了可以设置采样的深度以外，还支持三种数据样式展示，线条样式、柱状样式、平滑样式。为了可以直接定位到某一位置直接跳转到音频位置，还增加了绘制数线条定位线。 二、实现的功能 1:可设置采样深度 2:可设置当前位置线条宽度/线条颜色 3:可设置前景色/背景色 4:可设置数据展示样式,线条样式/柱状样式/平滑样式 三、效果图 四、头文件代码 #ifndef WAVEDATA_H #define WAVEDATA_H /** * 音量采样值波形控件 作者:feiyangqingyun(QQ:517216493) 2017-9-10 * 1:可设置采样深度 * 2:可设置当前位置线条宽度/线条颜色 * 3:可设置前景色/背景色 * 4:可设置数据展示样式,线条样式/柱状样式/平滑样式 */ #include <QWidget> #ifdef quc #if (QT_VERSION < QT

After looking around for various sound API libraries, I have decided to use FMOD for the time being. Problem is that whenever I try to compile one of the code examples, I get the following errors: obj\Release\main.o:main.cpp|| undefined reference to `FMOD::System::getVersion(unsigned int*)@8'| obj\Release\main.o:main.cpp|| undefined reference to `FMOD::System::init(int, unsigned int, void*)@16'| obj\Release\main.o:main.cpp|| undefined reference to `FMOD::System::createSound(char const*, unsigned int, FMOD_CREATESOUNDEXINFO*, FMOD::Sound**)@20'| obj\Release\main.o:main.cpp|| undefined reference

Been messing around with FMOD for C# game development and I've hit a snag early on that I can't seem to get around. I want to do some branching audio stuff and sync some gameplay action to beats and such, so I've tried adding syncpoints to my music tracks. Here's code: public class Music { private Sound music; private Channel channel; private IntPtr syncPtr; public string File { get; private set; } public Music(string file) { File = file; } public void Load() { music = new Sound(); Audio.System.createSound(File, MODE.HARDWARE, ref music); } public void Unload() { music.release(); } public

So, I'm using the FMOD api and it really is a C api. Not that that's bad or anything. Its just it doesn't interface well with C++ code. For example, using FMOD_Channel_SetCallback( channel, callbackFunc ) ; It wants a C-style function for callbackFunc , but I want to pass it a member function of a class. I ended up using the Win32 trick for this, making the member function static. It then works as a callback into FMOD. Now I have to hack apart my code to make some of the members static, just to account for FMOD's C-ness. I wonder if its possible in FMOD or if there's a work around to link up