OpenShot Library | libopenshot-audio
0.2.0
juce_MixerAudioSource.h
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/** @weakgroup juce_audio_basics-sources
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* @{
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*/
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace
juce
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{
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//==============================================================================
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/**
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An AudioSource that mixes together the output of a set of other AudioSources.
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Input sources can be added and removed while the mixer is running as long as their
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prepareToPlay() and releaseResources() methods are called before and after adding
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them to the mixer.
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@tags{Audio}
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*/
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class
JUCE_API
MixerAudioSource
:
public
AudioSource
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{
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public
:
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//==============================================================================
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/** Creates a MixerAudioSource. */
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MixerAudioSource
();
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/** Destructor. */
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~
MixerAudioSource
()
override
;
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//==============================================================================
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/** Adds an input source to the mixer.
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If the mixer is running you'll need to make sure that the input source
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is ready to play by calling its prepareToPlay() method before adding it.
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If the mixer is stopped, then its input sources will be automatically
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prepared when the mixer's prepareToPlay() method is called.
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@param newInput the source to add to the mixer
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@param deleteWhenRemoved if true, then this source will be deleted when
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no longer needed by the mixer.
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*/
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void
addInputSource (
AudioSource
* newInput,
bool
deleteWhenRemoved);
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/** Removes an input source.
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If the source was added by calling addInputSource() with the deleteWhenRemoved
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flag set, it will be deleted by this method.
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*/
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void
removeInputSource (
AudioSource
* input);
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/** Removes all the input sources.
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Any sources which were added by calling addInputSource() with the deleteWhenRemoved
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flag set will be deleted by this method.
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*/
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void
removeAllInputs();
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//==============================================================================
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/** Implementation of the AudioSource method.
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This will call prepareToPlay() on all its input sources.
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*/
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void
prepareToPlay (
int
samplesPerBlockExpected,
double
sampleRate)
override
;
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/** Implementation of the AudioSource method.
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This will call releaseResources() on all its input sources.
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*/
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void
releaseResources()
override
;
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/** Implementation of the AudioSource method. */
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void
getNextAudioBlock (
const
AudioSourceChannelInfo
&)
override
;
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private
:
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//==============================================================================
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Array<AudioSource*>
inputs;
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BigInteger
inputsToDelete;
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CriticalSection
lock;
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AudioBuffer<float>
tempBuffer;
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double
currentSampleRate;
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int
bufferSizeExpected;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (
MixerAudioSource
)
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};
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}
// namespace juce
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/** @}*/
juce::BigInteger
An arbitrarily large integer class.
Definition:
juce_BigInteger.h:42
juce::AudioSource
Base class for objects that can produce a continuous stream of audio.
Definition:
juce_AudioSource.h:113
juce::AudioBuffer< float >
juce::Array
Holds a resizable array of primitive or copy-by-value objects.
Definition:
juce_Array.h:59
JUCE_API
#define JUCE_API
This macro is added to all JUCE public class declarations.
Definition:
juce_StandardHeader.h:143
juce::MixerAudioSource
An AudioSource that mixes together the output of a set of other AudioSources.
Definition:
juce_MixerAudioSource.h:40
juce::AudioSourceChannelInfo
Used by AudioSource::getNextAudioBlock().
Definition:
juce_AudioSource.h:36
juce::CriticalSection
A re-entrant mutex.
Definition:
juce_CriticalSection.h:46
juce_audio_basics
sources
juce_MixerAudioSource.h
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