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Diffstat (limited to 'src/gsttools/qvideosurfacegstsink_p.h')
| -rw-r--r-- | src/gsttools/qvideosurfacegstsink_p.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/gsttools/qvideosurfacegstsink_p.h b/src/gsttools/qvideosurfacegstsink_p.h new file mode 100644 index 000000000..961cf91d2 --- /dev/null +++ b/src/gsttools/qvideosurfacegstsink_p.h @@ -0,0 +1,192 @@ +/**************************************************************************** +** +** 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 VIDEOSURFACEGSTSINK_P_H +#define VIDEOSURFACEGSTSINK_P_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 <gst/gst.h> + +#if GST_CHECK_VERSION(1,0,0) + +#include "qgstvideorenderersink_p.h" + +QT_BEGIN_NAMESPACE +typedef QGstVideoRendererSink QVideoSurfaceGstSink; +QT_END_NAMESPACE + +#else + +#include <gst/video/gstvideosink.h> + +#include <QtCore/qlist.h> +#include <QtCore/qmutex.h> +#include <QtCore/qqueue.h> +#include <QtCore/qpointer.h> +#include <QtCore/qwaitcondition.h> +#include <qvideosurfaceformat.h> +#include <qvideoframe.h> +#include <qabstractvideobuffer.h> + +#include "qgstbufferpoolinterface_p.h" + +QT_BEGIN_NAMESPACE +class QAbstractVideoSurface; + +class QVideoSurfaceGstDelegate : public QObject +{ + Q_OBJECT +public: + QVideoSurfaceGstDelegate(QAbstractVideoSurface *surface); + ~QVideoSurfaceGstDelegate(); + + QList<QVideoFrame::PixelFormat> supportedPixelFormats( + QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const; + + QVideoSurfaceFormat surfaceFormat() const; + + bool start(const QVideoSurfaceFormat &format, int bytesPerLine); + void stop(); + + void unlock(); + + bool isActive(); + + QGstBufferPoolInterface *pool() { return m_pool; } + QMutex *poolMutex() { return &m_poolMutex; } + void clearPoolBuffers(); + + void flush(); + + GstFlowReturn render(GstBuffer *buffer); + +private slots: + void queuedStart(); + void queuedStop(); + void queuedFlush(); + void queuedRender(); + + void updateSupportedFormats(); + +private: + QPointer<QAbstractVideoSurface> m_surface; + QList<QVideoFrame::PixelFormat> m_supportedPixelFormats; + //pixel formats of buffers pool native type + QList<QVideoFrame::PixelFormat> m_supportedPoolPixelFormats; + QGstBufferPoolInterface *m_pool; + QList<QGstBufferPoolInterface *> m_pools; + QMutex m_poolMutex; + QMutex m_mutex; + QWaitCondition m_setupCondition; + QWaitCondition m_renderCondition; + QVideoSurfaceFormat m_format; + QVideoFrame m_frame; + GstFlowReturn m_renderReturn; + int m_bytesPerLine; + bool m_started; + bool m_startCanceled; +}; + +class QVideoSurfaceGstSink +{ +public: + GstVideoSink parent; + + static QVideoSurfaceGstSink *createSink(QAbstractVideoSurface *surface); + static void setSurface(QAbstractVideoSurface *surface) { Q_UNUSED(surface); } + +private: + static GType get_type(); + static void class_init(gpointer g_class, gpointer class_data); + static void base_init(gpointer g_class); + static void instance_init(GTypeInstance *instance, gpointer g_class); + + static void finalize(GObject *object); + + static void handleShowPrerollChange(GObject *o, GParamSpec *p, gpointer d); + + static GstStateChangeReturn change_state(GstElement *element, GstStateChange transition); + + static GstCaps *get_caps(GstBaseSink *sink); + static gboolean set_caps(GstBaseSink *sink, GstCaps *caps); + + static GstFlowReturn buffer_alloc( + GstBaseSink *sink, guint64 offset, guint size, GstCaps *caps, GstBuffer **buffer); + + static gboolean start(GstBaseSink *sink); + static gboolean stop(GstBaseSink *sink); + + static gboolean unlock(GstBaseSink *sink); + +#if GST_CHECK_VERSION(0, 10, 25) + static GstFlowReturn show_frame(GstVideoSink *sink, GstBuffer *buffer); +#else + static GstFlowReturn preroll(GstBaseSink *sink, GstBuffer *buffer); + static GstFlowReturn render(GstBaseSink *sink, GstBuffer *buffer); +#endif + +private: + QVideoSurfaceGstDelegate *delegate; + + GstCaps *lastRequestedCaps; + GstCaps *lastBufferCaps; + QVideoSurfaceFormat *lastSurfaceFormat; +}; + +class QVideoSurfaceGstSinkClass +{ +public: + GstVideoSinkClass parent_class; +}; + +QT_END_NAMESPACE + +#endif + +#endif |