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Display: Add a property to export the VA display handle.

Browse source 
Just like what we do in VA plugins. The display can be seen as a
generic gst object and we can add a property to get the internal
VA handle.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/435>
This commit is contained in:
He Junyan 2021-05-14 12:04:04 +08:00 committed by GStreamer Marge Bot
parent c27c158cb2
commit 7809c58664
2 changed files with 18 additions and 0 deletions
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15
gst-libs/gst/vaapi/gstvaapidisplay.c
View file

@ -86,6 +86,7 @@ enum
PROP_SATURATION,
PROP_BRIGHTNESS,
PROP_CONTRAST,
PROP_VA_DISPLAY,
N_PROPERTIES
};
@ -1123,6 +1124,11 @@ gst_vaapi_display_get_property (GObject * object, guint property_id,
GstVaapiDisplay *display = GST_VAAPI_DISPLAY (object);
const GstVaapiProperty *prop;
if (property_id == PROP_VA_DISPLAY) {
g_value_set_pointer (value, gst_vaapi_display_get_display (display));
return;
}
if (!ensure_properties (display))
return;
@ -1224,6 +1230,15 @@ gst_vaapi_display_class_init (GstVaapiDisplayClass * klass)
"contrast",
"The display contrast value", 0.0, 2.0, 1.0, G_PARAM_READWRITE);
/**
* GstVaapiDisplay:va-display:
*
* The VA display handle, expressed as a #VADisplay.
*/
g_properties[PROP_VA_DISPLAY] =
g_param_spec_pointer ("va-display", "VADisplay",
"VA Display handler", G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, N_PROPERTIES, g_properties);
gst_type_mark_as_plugin_api (gst_vaapi_display_type_get_type (), 0);
}

3
gst/vaapi/gstvaapivideocontext.c
View file

@ -64,6 +64,9 @@ gst_vaapi_video_context_set_display (GstContext * context,
structure = gst_context_writable_structure (context);
gst_structure_set (structure, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME,
GST_TYPE_VAAPI_DISPLAY, display, NULL);
/* The outside user may access it as a generic Gobject. */
gst_structure_set (structure, "gst.vaapi.Display.GObject",
GST_TYPE_OBJECT, display, NULL);
}
GstContext *