diff options
author | Lars Knoll <lars.knoll@qt.io> | 2021-01-05 17:35:28 +0100 |
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committer | Lars Knoll <lars.knoll@qt.io> | 2021-01-22 07:00:25 +0000 |
commit | b898e5038b29a236578dc7cd1588bdbc0d40eac1 (patch) | |
tree | f9a14db08f05bc1f0a272814e52754c8507872cb /src/multimedia/gstreamer/qgstvideorenderersink_p.h | |
parent | 565636cf6ad18e4415fa9adeb8c99a0c93d3b1ff (diff) |
Move the gsttools into Qt Multimedia
Let's not have a separate helper lib for those. The longer
term goal is to get rid of platform specific plugins anyway.
Change-Id: I24c9e984c696a4ecfc4693413ad51264f6926afe
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/multimedia/gstreamer/qgstvideorenderersink_p.h')
-rw-r--r-- | src/multimedia/gstreamer/qgstvideorenderersink_p.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/multimedia/gstreamer/qgstvideorenderersink_p.h b/src/multimedia/gstreamer/qgstvideorenderersink_p.h new file mode 100644 index 000000000..0b05bbe83 --- /dev/null +++ b/src/multimedia/gstreamer/qgstvideorenderersink_p.h @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Jolla 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 QGSTVIDEORENDERERSINK_P_H +#define QGSTVIDEORENDERERSINK_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 <QtMultimedia/private/qtmultimediaglobal_p.h> +#include <gst/video/gstvideosink.h> +#include <gst/video/video.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 "qgstvideorendererplugin_p.h" + +#include "qgstvideorendererplugin_p.h" + +#if QT_CONFIG(gstreamer_gl) +#ifndef GST_USE_UNSTABLE_API +#define GST_USE_UNSTABLE_API +#endif +#include <gst/gl/gl.h> +#endif + +QT_BEGIN_NAMESPACE +class QAbstractVideoSurface; + +class QGstDefaultVideoRenderer : public QGstVideoRenderer +{ +public: + QGstDefaultVideoRenderer(); + ~QGstDefaultVideoRenderer(); + + GstCaps *getCaps(QAbstractVideoSurface *surface) override; + bool start(QAbstractVideoSurface *surface, GstCaps *caps) override; + void stop(QAbstractVideoSurface *surface) override; + + bool proposeAllocation(GstQuery *query) override; + + bool present(QAbstractVideoSurface *surface, GstBuffer *buffer) override; + void flush(QAbstractVideoSurface *surface) override; + +private: + QVideoSurfaceFormat m_format; + GstVideoInfo m_videoInfo; + bool m_flushed = true; + QAbstractVideoBuffer::HandleType m_handleType = QAbstractVideoBuffer::NoHandle; +}; + +class QVideoSurfaceGstDelegate : public QObject +{ + Q_OBJECT +public: + QVideoSurfaceGstDelegate(QAbstractVideoSurface *surface); + ~QVideoSurfaceGstDelegate(); + + GstCaps *caps(); + + bool start(GstCaps *caps); + void stop(); + void unlock(); + bool proposeAllocation(GstQuery *query); + + void flush(); + + GstFlowReturn render(GstBuffer *buffer); + + bool event(QEvent *event) override; + bool query(GstQuery *query); + +private slots: + bool handleEvent(QMutexLocker<QMutex> *locker); + void updateSupportedFormats(); + +private: + void notify(); + bool waitForAsyncEvent(QMutexLocker<QMutex> *locker, QWaitCondition *condition, unsigned long time); + + QPointer<QAbstractVideoSurface> m_surface; + + QMutex m_mutex; + QWaitCondition m_setupCondition; + QWaitCondition m_renderCondition; + GstFlowReturn m_renderReturn = GST_FLOW_OK; + QList<QGstVideoRenderer *> m_renderers; + QGstVideoRenderer *m_renderer = nullptr; + QGstVideoRenderer *m_activeRenderer = nullptr; + + GstCaps *m_surfaceCaps = nullptr; + GstCaps *m_startCaps = nullptr; + GstBuffer *m_renderBuffer = nullptr; +#if QT_CONFIG(gstreamer_gl) + GstGLContext *m_gstGLDisplayContext = nullptr; +#endif + + bool m_notified = false; + bool m_stop = false; + bool m_flush = false; +}; + +class Q_MULTIMEDIA_EXPORT QGstVideoRendererSink +{ +public: + GstVideoSink parent; + + static QGstVideoRendererSink *createSink(QAbstractVideoSurface *surface); + static void setSurface(QAbstractVideoSurface *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, GstCaps *filter); + static gboolean set_caps(GstBaseSink *sink, GstCaps *caps); + + static gboolean propose_allocation(GstBaseSink *sink, GstQuery *query); + + static gboolean stop(GstBaseSink *sink); + + static gboolean unlock(GstBaseSink *sink); + + static GstFlowReturn show_frame(GstVideoSink *sink, GstBuffer *buffer); + static gboolean query(GstBaseSink *element, GstQuery *query); + +private: + QVideoSurfaceGstDelegate *delegate = nullptr; +}; + + +class QGstVideoRendererSinkClass +{ +public: + GstVideoSinkClass parent_class; +}; + +QT_END_NAMESPACE + +#endif |