mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
gtksink: Port to GstGtkBaseSink
https://bugzilla.gnome.org/show_bug.cgi?id=752441
This commit is contained in:
Nicolas Dufresne
parent
2d7d6a8596
commit
0a4c1d8b52
2 changed files with 16 additions and 371 deletions
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@ -27,35 +27,9 @@
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#include "config.h"
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#endif
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#include "gtkgstwidget.h"
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#include "gstgtksink.h"
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GST_DEBUG_CATEGORY (gst_debug_gtk_sink);
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#define GST_CAT_DEFAULT gst_debug_gtk_sink
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#define DEFAULT_FORCE_ASPECT_RATIO TRUE
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#define DEFAULT_PAR_N 0
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#define DEFAULT_PAR_D 1
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#define DEFAULT_IGNORE_ALPHA TRUE
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static void gst_gtk_sink_finalize (GObject * object);
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static void gst_gtk_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * param_spec);
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static void gst_gtk_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * param_spec);
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static gboolean gst_gtk_sink_stop (GstBaseSink * bsink);
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static gboolean gst_gtk_sink_query (GstBaseSink * bsink, GstQuery * query);
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static GstStateChangeReturn
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gst_gtk_sink_change_state (GstElement * element, GstStateChange transition);
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static void gst_gtk_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
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GstClockTime * start, GstClockTime * end);
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static gboolean gst_gtk_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
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static GstFlowReturn gst_gtk_sink_show_frame (GstVideoSink * bsink,
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GstBuffer * buf);
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define FORMATS "{ BGRx, BGRA }"
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#else
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@ -69,343 +43,30 @@ GST_STATIC_PAD_TEMPLATE ("sink",
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (FORMATS))
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);
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enum
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{
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PROP_0,
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PROP_WIDGET,
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PROP_FORCE_ASPECT_RATIO,
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PROP_PIXEL_ASPECT_RATIO,
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PROP_IGNORE_ALPHA,
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};
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enum
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{
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SIGNAL_0,
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LAST_SIGNAL
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};
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#define gst_gtk_sink_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstGtkSink, gst_gtk_sink,
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GST_TYPE_VIDEO_SINK, GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_sink, "gtksink",
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0, "Gtk Video Sink"));
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G_DEFINE_TYPE (GstGtkSink, gst_gtk_sink, GST_TYPE_GTK_BASE_SINK);
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static void
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gst_gtk_sink_class_init (GstGtkSinkClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSinkClass *gstbasesink_class;
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GstVideoSinkClass *gstvideosink_class;
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GstGtkBaseSinkClass *base_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesink_class = (GstBaseSinkClass *) klass;
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gstvideosink_class = (GstVideoSinkClass *) klass;
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base_class = (GstGtkBaseSinkClass *) klass;
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gobject_class->set_property = gst_gtk_sink_set_property;
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gobject_class->get_property = gst_gtk_sink_get_property;
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base_class->create_widget = gtk_gst_widget_new;
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base_class->window_title = "Gtk+ Cairo renderer";
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gst_element_class_set_metadata (gstelement_class, "Gtk Video Sink",
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"Sink/Video", "A video sink that renders to a GtkWidget",
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"Matthew Waters <matthew@centricular.com>");
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g_object_class_install_property (gobject_class, PROP_WIDGET,
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g_param_spec_object ("widget", "Gtk Widget",
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"The GtkWidget to place in the widget heirachy",
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GTK_TYPE_WIDGET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
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g_param_spec_boolean ("force-aspect-ratio",
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"Force aspect ratio",
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"When enabled, scaling will respect original aspect ratio",
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DEFAULT_FORCE_ASPECT_RATIO,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
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gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
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"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
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G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_IGNORE_ALPHA,
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g_param_spec_boolean ("ignore-alpha", "Ignore Alpha",
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"When enabled, alpha will be ignored and converted to black",
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DEFAULT_IGNORE_ALPHA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&gst_gtk_sink_template));
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gobject_class->finalize = gst_gtk_sink_finalize;
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gstelement_class->change_state = gst_gtk_sink_change_state;
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gstbasesink_class->query = gst_gtk_sink_query;
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gstbasesink_class->set_caps = gst_gtk_sink_set_caps;
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gstbasesink_class->get_times = gst_gtk_sink_get_times;
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gstbasesink_class->stop = gst_gtk_sink_stop;
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gstvideosink_class->show_frame = gst_gtk_sink_show_frame;
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}
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static void
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gst_gtk_sink_init (GstGtkSink * gtk_sink)
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{
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gtk_sink->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
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gtk_sink->par_n = DEFAULT_PAR_N;
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gtk_sink->par_d = DEFAULT_PAR_D;
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gtk_sink->ignore_alpha = DEFAULT_IGNORE_ALPHA;
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}
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static void
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gst_gtk_sink_finalize (GObject * object)
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{
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GstGtkSink *gtk_sink = GST_GTK_SINK (object);;
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g_clear_object (>k_sink->widget);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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widget_destroy_cb (GtkWidget * widget, GstGtkSink * gtk_sink)
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{
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GST_OBJECT_LOCK (gtk_sink);
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g_clear_object (>k_sink->widget);
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GST_OBJECT_UNLOCK (gtk_sink);
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}
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static GtkGstBaseWidget *
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gst_gtk_sink_get_widget (GstGtkSink * gtk_sink)
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{
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if (gtk_sink->widget != NULL)
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return gtk_sink->widget;
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/* Ensure GTK is initialized, this has no side effect if it was already
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* initialized. Also, we do that lazily, so the application can be first */
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if (!gtk_init_check (NULL, NULL)) {
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GST_ERROR_OBJECT (gtk_sink, "Could not ensure GTK initialization.");
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return NULL;
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}
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gtk_sink->widget = (GtkGstBaseWidget *) gtk_gst_widget_new ();
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gtk_sink->bind_aspect_ratio =
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g_object_bind_property (gtk_sink, "force-aspect-ratio", gtk_sink->widget,
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"force-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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gtk_sink->bind_pixel_aspect_ratio =
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g_object_bind_property (gtk_sink, "pixel-aspect-ratio", gtk_sink->widget,
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"pixel-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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gtk_sink->bind_ignore_alpha =
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g_object_bind_property (gtk_sink, "ignore-alpha", gtk_sink->widget,
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"ignore-alpha", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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/* Take the floating ref, other wise the destruction of the container will
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* make this widget disapear possibly before we are done. */
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gst_object_ref_sink (gtk_sink->widget);
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g_signal_connect (gtk_sink->widget, "destroy",
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G_CALLBACK (widget_destroy_cb), gtk_sink);
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return gtk_sink->widget;
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}
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static void
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gst_gtk_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstGtkSink *gtk_sink = GST_GTK_SINK (object);
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switch (prop_id) {
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case PROP_WIDGET:
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g_value_set_object (value, gst_gtk_sink_get_widget (gtk_sink));
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break;
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case PROP_FORCE_ASPECT_RATIO:
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g_value_set_boolean (value, gtk_sink->force_aspect_ratio);
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break;
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case PROP_PIXEL_ASPECT_RATIO:
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gst_value_set_fraction (value, gtk_sink->par_n, gtk_sink->par_d);
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break;
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case PROP_IGNORE_ALPHA:
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g_value_set_boolean (value, gtk_sink->ignore_alpha);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gtk_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstGtkSink *gtk_sink = GST_GTK_SINK (object);
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switch (prop_id) {
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case PROP_FORCE_ASPECT_RATIO:
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gtk_sink->force_aspect_ratio = g_value_get_boolean (value);
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break;
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case PROP_PIXEL_ASPECT_RATIO:
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gtk_sink->par_n = gst_value_get_fraction_numerator (value);
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gtk_sink->par_d = gst_value_get_fraction_denominator (value);
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break;
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case PROP_IGNORE_ALPHA:
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gtk_sink->ignore_alpha = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gst_gtk_sink_query (GstBaseSink * bsink, GstQuery * query)
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{
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gboolean res = FALSE;
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switch (GST_QUERY_TYPE (query)) {
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default:
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res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
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break;
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}
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return res;
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}
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static gboolean
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gst_gtk_sink_stop (GstBaseSink * bsink)
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{
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return TRUE;
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}
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static GstStateChangeReturn
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gst_gtk_sink_change_state (GstElement * element, GstStateChange transition)
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{
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GstGtkSink *gtk_sink = GST_GTK_SINK (element);
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GtkWidget *toplevel;
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GST_DEBUG ("changing state: %s => %s",
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gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
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gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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if (gst_gtk_sink_get_widget (gtk_sink) == NULL)
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return GST_STATE_CHANGE_FAILURE;
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/* After this point, gtk_sink->widget will always be set */
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toplevel = gtk_widget_get_toplevel (GTK_WIDGET (gtk_sink->widget));
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if (!gtk_widget_is_toplevel (toplevel)) {
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GtkWidget *window;
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/* User did not add widget its own UI, let's popup a new GtkWindow to
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* make gst-launch-1.0 work. */
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
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gtk_window_set_title (GTK_WINDOW (window), "Gtk+ Cairo renderer");
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gtk_container_add (GTK_CONTAINER (window), toplevel);
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gtk_widget_show_all (window);
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}
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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break;
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE)
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return ret;
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switch (transition) {
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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GST_OBJECT_LOCK (gtk_sink);
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if (gtk_sink->widget)
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gtk_gst_base_widget_set_buffer (gtk_sink->widget, NULL);
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GST_OBJECT_UNLOCK (gtk_sink);
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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default:
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break;
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}
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return ret;
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}
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static void
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gst_gtk_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
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GstClockTime * start, GstClockTime * end)
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{
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GstGtkSink *gtk_sink;
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gtk_sink = GST_GTK_SINK (bsink);
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if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
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*start = GST_BUFFER_TIMESTAMP (buf);
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if (GST_BUFFER_DURATION_IS_VALID (buf))
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*end = *start + GST_BUFFER_DURATION (buf);
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else {
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if (GST_VIDEO_INFO_FPS_N (>k_sink->v_info) > 0) {
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*end = *start +
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gst_util_uint64_scale_int (GST_SECOND,
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GST_VIDEO_INFO_FPS_D (>k_sink->v_info),
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GST_VIDEO_INFO_FPS_N (>k_sink->v_info));
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}
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}
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}
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}
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gboolean
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gst_gtk_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
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{
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GstGtkSink *gtk_sink = GST_GTK_SINK (bsink);
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GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps);
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if (!gst_video_info_from_caps (>k_sink->v_info, caps))
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return FALSE;
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GST_OBJECT_LOCK (gtk_sink);
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if (gtk_sink->widget == NULL) {
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GST_OBJECT_UNLOCK (gtk_sink);
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GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
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("%s", "Output widget was destroyed"), (NULL));
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return FALSE;
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}
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if (!gtk_gst_base_widget_set_caps (gtk_sink->widget, caps))
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return FALSE;
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GST_OBJECT_UNLOCK (gtk_sink);
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return TRUE;
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}
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static GstFlowReturn
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gst_gtk_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
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{
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GstGtkSink *gtk_sink;
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GST_TRACE ("rendering buffer:%p", buf);
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gtk_sink = GST_GTK_SINK (vsink);
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GST_OBJECT_LOCK (vsink);
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if (gtk_sink->widget == NULL) {
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GST_OBJECT_UNLOCK (gtk_sink);
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GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
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("%s", "Output widget was destroyed"), (NULL));
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return GST_FLOW_ERROR;
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}
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gtk_gst_base_widget_set_buffer (gtk_sink->widget, buf);
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GST_OBJECT_UNLOCK (gtk_sink);
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return GST_FLOW_OK;
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}
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@ -26,14 +26,8 @@
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#include <gst/video/gstvideosink.h>
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#include <gst/video/video.h>
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typedef struct _GstGtkSink GstGtkSink;
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typedef struct _GstGtkSinkClass GstGtkSinkClass;
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#include "gstgtkbasesink.h"
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#include <gtkgstwidget.h>
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G_BEGIN_DECLS
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GType gst_gtk_sink_get_type (void);
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#define GST_TYPE_GTK_SINK (gst_gtk_sink_get_type())
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#define GST_GTK_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GTK_SINK,GstGtkSink))
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#define GST_GTK_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GTK_SINK,GstGtkSinkClass))
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@ -41,6 +35,13 @@ GType gst_gtk_sink_get_type (void);
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#define GST_IS_GTK_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GTK_SINK))
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#define GST_GTK_SINK_CAST(obj) ((GstGtkSink*)(obj))
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G_BEGIN_DECLS
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typedef struct _GstGtkSink GstGtkSink;
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typedef struct _GstGtkSinkClass GstGtkSinkClass;
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GType gst_gtk_sink_get_type (void);
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/**
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* GstGtkSink:
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*
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@ -49,22 +50,7 @@ GType gst_gtk_sink_get_type (void);
|
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struct _GstGtkSink
|
||||
{
|
||||
/* <private> */
|
||||
GstVideoSink parent;
|
||||
|
||||
GstVideoInfo v_info;
|
||||
|
||||
GtkGstBaseWidget *widget;
|
||||
|
||||
/* properties */
|
||||
gboolean force_aspect_ratio;
|
||||
GBinding *bind_aspect_ratio;
|
||||
|
||||
gint par_n;
|
||||
gint par_d;
|
||||
GBinding *bind_pixel_aspect_ratio;
|
||||
|
||||
gboolean ignore_alpha;
|
||||
GBinding *bind_ignore_alpha;
|
||||
GstGtkBaseSink parent;
|
||||
};
|
||||
|
||||
/**
|
||||
|
|
@ -75,11 +61,9 @@ struct _GstGtkSink
|
|||
struct _GstGtkSinkClass
|
||||
{
|
||||
/* <private> */
|
||||
GstVideoSinkClass object_class;
|
||||
GstGtkBaseSinkClass object_class;
|
||||
};
|
||||
|
||||
GstGtkSink * gst_gtk_sink_new (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_GTK_SINK_H__ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue