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// Copyright (C) 2016 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
#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 <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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