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/****************************************************************************
**
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGSTAPPSRC_H
#define QGSTAPPSRC_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qtmultimediaglobal_p.h>
#include <qaudioformat.h>
#include <QtCore/qobject.h>
#include <QtCore/qiodevice.h>
#include <QtCore/private/qringbuffer_p.h>
#include <QtCore/qatomic.h>
#include <private/qgst_p.h>
#include <gst/app/gstappsrc.h>
QT_BEGIN_NAMESPACE
class QNetworkReply;
class Q_MULTIMEDIA_EXPORT QGstAppSrc : public QObject
{
Q_OBJECT
public:
QGstAppSrc(QObject *parent = 0);
~QGstAppSrc();
bool setup(QIODevice *stream = nullptr, qint64 offset = 0);
void setAudioFormat(const QAudioFormat &f);
void setExternalAppSrc(const QGstElement &appsrc);
QGstElement element();
void write(const char *data, qsizetype size);
bool canAcceptMoreData() { return m_noMoreData || m_dataRequestSize != 0; }
void suspend() { m_suspended = true; }
void resume() { m_suspended = false; m_noMoreData = true; }
Q_SIGNALS:
void bytesProcessed(int bytes);
void noMoreData();
private Q_SLOTS:
void pushData();
bool doSeek(qint64);
void onDataReady();
void streamDestroyed();
private:
bool setStream(QIODevice *, qint64 offset);
bool isStreamValid() const
{
return m_stream != nullptr && m_stream->isOpen();
}
static gboolean on_seek_data(GstAppSrc *element, guint64 arg0, gpointer userdata);
static void on_enough_data(GstAppSrc *element, gpointer userdata);
static void on_need_data(GstAppSrc *element, uint arg0, gpointer userdata);
void sendEOS();
void eosOrIdle();
QIODevice *m_stream = nullptr;
QNetworkReply *m_networkReply = nullptr;
QRingBuffer m_buffer;
QAudioFormat m_format;
QGstElement m_appSrc;
bool m_sequential = true;
bool m_suspended = false;
bool m_noMoreData = false;
GstAppStreamType m_streamType = GST_APP_STREAM_TYPE_RANDOM_ACCESS;
qint64 m_offset = 0;
qint64 m_maxBytes = 0;
qint64 bytesReadSoFar = 0;
QAtomicInteger<unsigned int> m_dataRequestSize = 0;
int streamedSamples = 0;
};
QT_END_NAMESPACE
#endif
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