diff options
Diffstat (limited to 'src/multimedia/audio/qaudiosystem.cpp')
| -rw-r--r-- | src/multimedia/audio/qaudiosystem.cpp | 254 |
1 files changed, 11 insertions, 243 deletions
diff --git a/src/multimedia/audio/qaudiosystem.cpp b/src/multimedia/audio/qaudiosystem.cpp index f1fd5bb30..355771f6b 100644 --- a/src/multimedia/audio/qaudiosystem.cpp +++ b/src/multimedia/audio/qaudiosystem.cpp @@ -1,254 +1,22 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2022 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only -#include <private/qtmultimediaglobal_p.h> #include "qaudiosystem_p.h" -QT_BEGIN_NAMESPACE - -/*! - \class QPlatformAudioSink - \brief The QPlatformAudioSink class is a base class for audio backends. - - \ingroup multimedia - \inmodule QtMultimedia - - QPlatformAudioSink implements audio functionality for - QAudioSink, i.e., QAudioSink routes function calls to - QPlatformAudioSink. For a description of the functionality that - is implemented, see the QAudioSink class and function - descriptions. - - \sa QAudioSink -*/ - -/*! - \fn void QPlatformAudioSink::start(QIODevice* device) - Uses the \a device as the QIODevice to transfer data. -*/ - -/*! - \fn QIODevice* QPlatformAudioSink::start() - Returns a pointer to the QIODevice being used to handle - the data transfer. This QIODevice can be used to write() audio data directly. -*/ - -/*! - \fn void QPlatformAudioSink::stop() - Stops the audio output. -*/ - -/*! - \fn void QPlatformAudioSink::reset() - Drops all audio data in the buffers, resets buffers to zero. -*/ - -/*! - \fn void QPlatformAudioSink::suspend() - Stops processing audio data, preserving buffered audio data. -*/ - -/*! - \fn void QPlatformAudioSink::resume() - Resumes processing audio data after a suspend() -*/ - -/*! - \fn qsizetype QPlatformAudioSink::bytesFree() const - Returns the free space available in bytes in the audio buffer. -*/ - -/*! - \fn void QPlatformAudioSink::setBufferSize(qsizetype value) - Sets the audio buffer size to \a value in bytes. -*/ - -/*! - \fn qsizetype QPlatformAudioSink::bufferSize() const - Returns the audio buffer size in bytes. -*/ - -/*! - \fn qint64 QPlatformAudioSink::processedUSecs() const - Returns the amount of audio data processed since start() was called in milliseconds. -*/ - -/*! - \fn QAudio::Error QPlatformAudioSink::error() const - Returns the error state. -*/ - -/*! - \fn QAudio::State QPlatformAudioSink::state() const - Returns the state of audio processing. -*/ - -/*! - \fn void QPlatformAudioSink::setFormat(const QAudioFormat& fmt) - Set the QAudioFormat to use to \a fmt. - Setting the format is only allowable while in QAudio::StoppedState. -*/ - -/*! - \fn QAudioFormat QPlatformAudioSink::format() const - Returns the QAudioFormat being used. -*/ - -/*! - \fn void QPlatformAudioSink::setVolume(qreal volume) - Sets the volume. - Where \a volume is between 0.0 and 1.0. -*/ +#include <private/qplatformmediadevices_p.h> -/*! - \fn qreal QPlatformAudioSink::volume() const - Returns the volume in the range 0.0 and 1.0. -*/ - -/*! - \fn QPlatformAudioSink::errorChanged(QAudio::Error error) - This signal is emitted when the \a error state has changed. -*/ - -/*! - \fn QPlatformAudioSink::stateChanged(QAudio::State state) - This signal is emitted when the device \a state has changed. -*/ - -/*! - \class QPlatformAudioSource - \brief The QPlatformAudioSource class provides access for QAudioSource to access the audio - device provided by the plugin. - - \ingroup multimedia - \inmodule QtMultimedia - - QAudioDeviceInput keeps an instance of QPlatformAudioSource and - routes calls to functions of the same name to QPlatformAudioSource. - This means that it is QPlatformAudioSource that implements the - audio functionality. For a description of the functionality, see - the QAudioSource class description. - - \sa QAudioSource -*/ - -/*! - \fn void QPlatformAudioSource::start(QIODevice* device) - Uses the \a device as the QIODevice to transfer data. -*/ - -/*! - \fn QIODevice* QPlatformAudioSource::start() - Returns a pointer to the QIODevice being used to handle - the data transfer. This QIODevice can be used to read() audio data directly. -*/ - -/*! - \fn void QPlatformAudioSource::stop() - Stops the audio input. -*/ - -/*! - \fn void QPlatformAudioSource::reset() - Drops all audio data in the buffers, resets buffers to zero. -*/ - -/*! - \fn void QPlatformAudioSource::suspend() - Stops processing audio data, preserving buffered audio data. -*/ - -/*! - \fn void QPlatformAudioSource::resume() - Resumes processing audio data after a suspend(). -*/ - -/*! - \fn qsizetype QPlatformAudioSource::bytesReady() const - Returns the amount of audio data available to read in bytes. -*/ - -/*! - \fn void QPlatformAudioSource::setBufferSize(qsizetype value) - Sets the audio buffer size to \a value in milliseconds. -*/ - -/*! - \fn qsizetype QPlatformAudioSource::bufferSize() const - Returns the audio buffer size in milliseconds. -*/ - -/*! - \fn qint64 QPlatformAudioSource::processedUSecs() const - Returns the amount of audio data processed since start() was called in milliseconds. -*/ - -/*! - \fn QAudio::Error QPlatformAudioSource::error() const - Returns the error state. -*/ - -/*! - \fn QAudio::State QPlatformAudioSource::state() const - Returns the state of audio processing. -*/ +QT_BEGIN_NAMESPACE -/*! - \fn void QPlatformAudioSource::setFormat(const QAudioFormat& fmt) - Set the QAudioFormat to use to \a fmt. - Setting the format is only allowable while in QAudio::StoppedState. -*/ +QAudioStateChangeNotifier::QAudioStateChangeNotifier(QObject *parent) : QObject(parent) { } -/*! - \fn QAudioFormat QPlatformAudioSource::format() const - Returns the QAudioFormat being used -*/ +QPlatformAudioSink::QPlatformAudioSink(QObject *parent) : QAudioStateChangeNotifier(parent) { } -/*! - \fn QPlatformAudioSource::errorChanged(QAudio::Error error) - This signal is emitted when the \a error state has changed. -*/ +qreal QPlatformAudioSink::volume() const +{ + return 1.0; +} -/*! - \fn QPlatformAudioSource::stateChanged(QAudio::State state) - This signal is emitted when the device \a state has changed. -*/ +QPlatformAudioSource::QPlatformAudioSource(QObject *parent) : QAudioStateChangeNotifier(parent) { } QT_END_NAMESPACE |