OpenShot Audio Library | OpenShotAudio  0.3.0
juce_AudioSourcePlayer.h
1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2017 - ROLI Ltd.
6 
7  JUCE is an open source library subject to commercial or open-source
8  licensing.
9 
10  The code included in this file is provided under the terms of the ISC license
11  http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12  To use, copy, modify, and/or distribute this software for any purpose with or
13  without fee is hereby granted provided that the above copyright notice and
14  this permission notice appear in all copies.
15 
16  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18  DISCLAIMED.
19 
20  ==============================================================================
21 */
22 
23 namespace juce
24 {
25 
26 //==============================================================================
37 {
38 public:
39  //==============================================================================
42 
48  ~AudioSourcePlayer() override;
49 
50  //==============================================================================
64  void setSource (AudioSource* newSource);
65 
69  AudioSource* getCurrentSource() const noexcept { return source; }
70 
74  void setGain (float newGain) noexcept;
75 
79  float getGain() const noexcept { return gain; }
80 
81  //==============================================================================
83  void audioDeviceIOCallback (const float** inputChannelData,
84  int totalNumInputChannels,
85  float** outputChannelData,
86  int totalNumOutputChannels,
87  int numSamples) override;
88 
90  void audioDeviceAboutToStart (AudioIODevice* device) override;
91 
93  void audioDeviceStopped() override;
94 
96  void prepareToPlay (double sampleRate, int blockSize);
97 
98 private:
99  //==============================================================================
100  CriticalSection readLock;
101  AudioSource* source = nullptr;
102  double sampleRate = 0;
103  int bufferSize = 0;
104  float* channels[128];
105  float* outputChans[128];
106  const float* inputChans[128];
107  AudioBuffer<float> tempBuffer;
108  float lastGain = 1.0f;
109  std::atomic<float> gain { 1.0f };
110 
111  JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioSourcePlayer)
112 };
113 
114 } // namespace juce
AudioSource * getCurrentSource() const noexcept
float getGain() const noexcept