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playback/player: qt: emit player signals from Qt event loop

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This commit is contained in:
Alexandre Moreno 2015-10-06 23:19:03 +08:00 committed by Sebastian Dröge
parent 82b2c53618
commit 2ea1c9aee7
2 changed files with 164 additions and 7 deletions
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144
playback/player/qt/qgstplayer.cpp
View file

@ -21,8 +21,9 @@
#include "qgstplayer.h"
#include <QDebug>
#include <QSize>
#include <QMetaObject>
#include <functional>
#include <QThread>
class QGstPlayerRegisterMetaTypes
{
@ -86,7 +87,8 @@ QGstPlayer::QGstPlayer(QObject *parent, QGstPlayer::VideoRenderer *renderer)
, videoAvailable_(false)
{
player_ = gst_player_new_full(renderer ? renderer->renderer() : 0, 0);
player_ = gst_player_new_full(renderer ? renderer->renderer() : 0,
gst_player_qt_signal_dispatcher_new(this));
g_object_connect(player_,
"swapped-signal::state-changed", G_CALLBACK (QGstPlayer::onStateChanged), this,
@ -354,7 +356,6 @@ gst_player_qt_video_renderer_set_property (GObject * object,
switch (prop_id) {
case QT_VIDEO_RENDERER_PROP_RENDERER:
qDebug() << "setting renderer";
self->renderer = g_value_get_pointer (value);
break;
default:
@ -433,3 +434,140 @@ gst_player_qt_video_renderer_interface_init
{
iface->create_video_sink = gst_player_qt_video_renderer_create_video_sink;
}
struct _GstPlayerQtSignalDispatcher
{
GObject parent;
gpointer player;
};
struct _GstPlayerQtSignalDispatcherClass
{
GObjectClass parent_class;
};
static void
gst_player_qt_signal_dispatcher_interface_init
(GstPlayerSignalDispatcherInterface * iface);
enum
{
QT_SIGNAL_DISPATCHER_PROP_0,
QT_SIGNAL_DISPATCHER_PROP_PLAYER,
QT_SIGNAL_DISPATCHER_PROP_LAST
};
G_DEFINE_TYPE_WITH_CODE (GstPlayerQtSignalDispatcher,
gst_player_qt_signal_dispatcher, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GST_TYPE_PLAYER_SIGNAL_DISPATCHER,
gst_player_qt_signal_dispatcher_interface_init));
static GParamSpec
* qt_signal_dispatcher_param_specs
[QT_SIGNAL_DISPATCHER_PROP_LAST] = { NULL, };
static void
gst_player_qt_signal_dispatcher_finalize (GObject * object)
{
GstPlayerQtSignalDispatcher *self =
GST_PLAYER_QT_SIGNAL_DISPATCHER (object);
G_OBJECT_CLASS
(gst_player_qt_signal_dispatcher_parent_class)->finalize
(object);
}
static void
gst_player_qt_signal_dispatcher_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstPlayerQtSignalDispatcher *self =
GST_PLAYER_QT_SIGNAL_DISPATCHER (object);
switch (prop_id) {
case QT_SIGNAL_DISPATCHER_PROP_PLAYER:
self->player = g_value_get_pointer (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_player_qt_signal_dispatcher_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstPlayerQtSignalDispatcher *self =
GST_PLAYER_QT_SIGNAL_DISPATCHER (object);
switch (prop_id) {
case QT_SIGNAL_DISPATCHER_PROP_PLAYER:
g_value_set_pointer (value, self->player);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_player_qt_signal_dispatcher_class_init
(GstPlayerQtSignalDispatcherClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize =
gst_player_qt_signal_dispatcher_finalize;
gobject_class->set_property =
gst_player_qt_signal_dispatcher_set_property;
gobject_class->get_property =
gst_player_qt_signal_dispatcher_get_property;
qt_signal_dispatcher_param_specs
[QT_SIGNAL_DISPATCHER_PROP_PLAYER] =
g_param_spec_pointer ("player", "QGstPlayer instance", "",
static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_properties (gobject_class,
QT_SIGNAL_DISPATCHER_PROP_LAST,
qt_signal_dispatcher_param_specs);
}
static void
gst_player_qt_signal_dispatcher_init
(GstPlayerQtSignalDispatcher * self)
{
}
static void
gst_player_qt_signal_dispatcher_dispatch (GstPlayerSignalDispatcher
* iface, GstPlayer * player, void (*emitter) (gpointer data), gpointer data,
GDestroyNotify destroy)
{
GstPlayerQtSignalDispatcher *self = GST_PLAYER_QT_SIGNAL_DISPATCHER (iface);
QObject dispatch;
QObject *receiver = static_cast<QObject*>(self->player);
QObject::connect(&dispatch, &QObject::destroyed, receiver, [=]() {
emitter(data);
if (destroy) destroy(data);
}, Qt::QueuedConnection);
}
static void
gst_player_qt_signal_dispatcher_interface_init
(GstPlayerSignalDispatcherInterface * iface)
{
iface->dispatch = gst_player_qt_signal_dispatcher_dispatch;
}
GstPlayerSignalDispatcher *
gst_player_qt_signal_dispatcher_new (gpointer player)
{
return static_cast<GstPlayerSignalDispatcher*>
(g_object_new (GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER,
"player", player, NULL));
}

27
playback/player/qt/qgstplayer.h
View file

@ -136,7 +136,10 @@ private:
bool videoAvailable_;
};
G_BEGIN_DECLS
Q_DECLARE_METATYPE(QGstPlayer*)
Q_DECLARE_METATYPE(QGstPlayer::State)
extern "C" {
typedef struct _GstPlayerQtVideoRenderer
GstPlayerQtVideoRenderer;
@ -154,9 +157,25 @@ typedef struct _GstPlayerQtVideoRendererClass
GType gst_player_qt_video_renderer_get_type (void);
G_END_DECLS
typedef struct _GstPlayerQtSignalDispatcher
GstPlayerQtSignalDispatcher;
Q_DECLARE_METATYPE(QGstPlayer*)
Q_DECLARE_METATYPE(QGstPlayer::State)
typedef struct _GstPlayerQtSignalDispatcherClass
GstPlayerQtSignalDispatcherClass;
#define GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER (gst_player_qt_signal_dispatcher_get_type ())
#define GST_IS_PLAYER_QT_SIGNAL_DISPATCHER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER))
#define GST_IS_PLAYER_QT_SIGNAL_DISPATCHER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER))
#define GST_PLAYER_QT_SIGNAL_DISPATCHER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER, GstPlayerQtSignalDispatcherClass))
#define GST_PLAYER_QT_SIGNAL_DISPATCHER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER, GstPlayerQtSignalDispatcher))
#define GST_PLAYER_QT_SIGNAL_DISPATCHER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PLAYER_QT_SIGNAL_DISPATCHER, GstPlayerQtSignalDispatcherClass))
#define GST_PLAYER_QT_SIGNAL_DISPATCHER_CAST(obj) ((GstPlayerQtSignalDispatcher*)(obj))
GType gst_player_qt_video_renderer_get_type (void);
GstPlayerSignalDispatcher *
gst_player_qt_signal_dispatcher_new (gpointer player);
}
#endif // QGSTPLAYER_H