JUCE/modules/juce_audio_utils/gui/juce_AudioAppComponent.cpp

/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2015 - ROLI Ltd.

   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3

   Details of these licenses can be found at: www.gnu.org/licenses

   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

   ------------------------------------------------------------------------------

   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.juce.com for more information.

  ==============================================================================
*/

AudioAppComponent::AudioAppComponent()
{
}

AudioAppComponent::~AudioAppComponent()
{
    // If you hit this then your derived class must call shutdown audio in
    // destructor!
    jassert (audioSourcePlayer.getCurrentSource() == nullptr);
}

void AudioAppComponent::setAudioChannels (int numInputChannels, int numOutputChannels)
{
    String audioError = deviceManager.initialise (numInputChannels, numOutputChannels, nullptr, true);
    jassert (audioError.isEmpty());

    deviceManager.addAudioCallback (&audioSourcePlayer);
    audioSourcePlayer.setSource (this);
}

void AudioAppComponent::shutdownAudio()
{
    audioSourcePlayer.setSource (nullptr);
    deviceManager.removeAudioCallback (&audioSourcePlayer);
    deviceManager.closeAudioDevice();
}