25bd5d8adb
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
115 lines
4.2 KiB
C++
115 lines
4.2 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library.
|
|
Copyright (c) 2020 - Raw Material Software Limited
|
|
|
|
JUCE is an open source library subject to commercial or open-source
|
|
licensing.
|
|
|
|
The code included in this file is provided under the terms of the ISC license
|
|
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
|
|
To use, copy, modify, and/or distribute this software for any purpose with or
|
|
without fee is hereby granted provided that the above copyright notice and
|
|
this permission notice appear in all copies.
|
|
|
|
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
|
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
|
DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
|
|
//==============================================================================
|
|
/**
|
|
Wrapper class to continuously stream audio from an audio source to an
|
|
AudioIODevice.
|
|
|
|
This object acts as an AudioIODeviceCallback, so can be attached to an
|
|
output device, and will stream audio from an AudioSource.
|
|
|
|
@tags{Audio}
|
|
*/
|
|
class JUCE_API AudioSourcePlayer : public AudioIODeviceCallback
|
|
{
|
|
public:
|
|
//==============================================================================
|
|
/** Creates an empty AudioSourcePlayer. */
|
|
AudioSourcePlayer();
|
|
|
|
/** Destructor.
|
|
|
|
Make sure this object isn't still being used by an AudioIODevice before
|
|
deleting it!
|
|
*/
|
|
~AudioSourcePlayer() override;
|
|
|
|
//==============================================================================
|
|
/** Changes the current audio source to play from.
|
|
|
|
If the source passed in is already being used, this method will do nothing.
|
|
If the source is not null, its prepareToPlay() method will be called
|
|
before it starts being used for playback.
|
|
|
|
If there's another source currently playing, its releaseResources() method
|
|
will be called after it has been swapped for the new one.
|
|
|
|
@param newSource the new source to use - this will NOT be deleted
|
|
by this object when no longer needed, so it's the
|
|
caller's responsibility to manage it.
|
|
*/
|
|
void setSource (AudioSource* newSource);
|
|
|
|
/** Returns the source that's playing.
|
|
May return nullptr if there's no source.
|
|
*/
|
|
AudioSource* getCurrentSource() const noexcept { return source; }
|
|
|
|
/** Sets a gain to apply to the audio data.
|
|
@see getGain
|
|
*/
|
|
void setGain (float newGain) noexcept;
|
|
|
|
/** Returns the current gain.
|
|
@see setGain
|
|
*/
|
|
float getGain() const noexcept { return gain; }
|
|
|
|
//==============================================================================
|
|
/** Implementation of the AudioIODeviceCallback method. */
|
|
void audioDeviceIOCallback (const float** inputChannelData,
|
|
int totalNumInputChannels,
|
|
float** outputChannelData,
|
|
int totalNumOutputChannels,
|
|
int numSamples) override;
|
|
|
|
/** Implementation of the AudioIODeviceCallback method. */
|
|
void audioDeviceAboutToStart (AudioIODevice* device) override;
|
|
|
|
/** Implementation of the AudioIODeviceCallback method. */
|
|
void audioDeviceStopped() override;
|
|
|
|
/** An alternative method for initialising the source without an AudioIODevice. */
|
|
void prepareToPlay (double sampleRate, int blockSize);
|
|
|
|
private:
|
|
//==============================================================================
|
|
CriticalSection readLock;
|
|
AudioSource* source = nullptr;
|
|
double sampleRate = 0;
|
|
int bufferSize = 0;
|
|
float* channels[128];
|
|
float* outputChans[128];
|
|
const float* inputChans[128];
|
|
AudioBuffer<float> tempBuffer;
|
|
float lastGain = 1.0f;
|
|
std::atomic<float> gain { 1.0f };
|
|
|
|
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioSourcePlayer)
|
|
};
|
|
|
|
} // namespace juce
|