diff options
author | Michael Goddard <michael.goddard@nokia.com> | 2012-02-02 15:28:21 +1000 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2012-02-06 23:18:56 +0100 |
commit | 3c4dcf00bb9922ed83f1defcd52092857da5103e (patch) | |
tree | 3d80472f02dace138a585f02cb7740e01b1cc3d6 /src/multimedia/audio/qaudiobuffer_p.h | |
parent | ee39683e273f705bfcffde8b6a9908230010843c (diff) |
Add a QAudioBuffer class.
Prereq for probing or decoding. The abstract API probably needs
to change.
Change-Id: Ie0bf796c1f581f34bbc0a8af2dffc387c513a330
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
Diffstat (limited to 'src/multimedia/audio/qaudiobuffer_p.h')
-rw-r--r-- | src/multimedia/audio/qaudiobuffer_p.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudiobuffer_p.h b/src/multimedia/audio/qaudiobuffer_p.h new file mode 100644 index 000000000..af81b7cad --- /dev/null +++ b/src/multimedia/audio/qaudiobuffer_p.h @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QAUDIOBUFFER_P_H +#define QAUDIOBUFFER_P_H + +#include <qtmultimediadefs.h> +#include <qtmedianamespace.h> + +#include "qaudioformat.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Multimedia) + +class Q_MULTIMEDIA_EXPORT QAbstractAudioBuffer { +public: + virtual ~QAbstractAudioBuffer() {} + + // Lifetime management + virtual void release() = 0; + + // Format related + virtual QAudioFormat format() const = 0; + virtual qint64 startTime() const = 0; + virtual int sampleCount() const = 0; + + // R/O Data + virtual void *constData() const = 0; + + // For writable data we do this: + // If we only have one reference to the provider, + // call writableData(). If that does not return 0, + // then we're finished. If it does return 0, then we call + // writableClone() to get a new buffer and then release + // the old clone if that succeeds. If it fails, we create + // a memory clone from the constData and release the old buffer. + // If writableClone() succeeds, we then call writableData() on it + // and that should be good. + + virtual void *writableData() = 0; + virtual QAbstractAudioBuffer *clone() const = 0; +}; + + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QAUDIOBUFFER_P_H |