armos.audio.recorder source code

1 module armos.audio.recorder;
2 
3 import derelict.openal.al;
4 /++
5 +/
6 class Recorder {
7     public{
8         ///
9         this(uint rate = 44100, uint size = 1024){
10             DerelictAL.load();
11             _rate = rate;
12             _size = size;
13             _device = alcCaptureOpenDevice(null, _rate, AL_FORMAT_STEREO16, _size);
14         }
15 
16         ~this(){
17             stop;
18             alcCaptureCloseDevice(_device);
19         }
20 
21         ///
22         const(byte[]) buffer()const{
23             return _buffer;
24         }
25 
26         ///
27         int samples()const{
28             return _samples;
29         }
30 
31         ///
32         Recorder update(){
33             alcGetIntegerv(_device, ALC_CAPTURE_SAMPLES, cast(ALCsizei)(ALint.sizeof), &_samples);
34             if(_samples > 0){
35                 _buffer = new byte[_samples];
36                 alcCaptureSamples(_device, _buffer.ptr, _samples/2);
37             }else{
38                 _buffer = [];
39             }
40             return this;
41         }
42 
43         ///
44         Recorder start(){
45             alcCaptureStart(_device);
46             return this;
47         }
48 
49         ///
50         Recorder stop(){
51             alcCaptureStop(_device);
52             return this;
53         }
54     }//public
55 
56     private{
57         ALCdevice*  _device;
58         int _samples;
59         byte[] _buffer;
60         uint _rate;
61         uint _size;
62     }//private
63 }//class Recorder