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camerabin2: Add viewfinder caps related properties

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Adds properties to check what caps are supported on the
viewfinder (from the camerasrc viewfinder pad) and another
one to set a caps for the viewfinder.
This commit is contained in:
Thiago Santos 2011-02-24 18:28:28 -03:00
parent 76b3ff361f
commit bcc6d99bbe
1 changed files with 59 additions and 2 deletions
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61
gst/camerabin2/gstcamerabin2.c
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@ -77,7 +77,9 @@ enum
PROP_VIDEO_FILTER,
PROP_VIEWFINDER_FILTER,
PROP_PREVIEW_FILTER,
PROP_VIEWFINDER_SINK
PROP_VIEWFINDER_SINK,
PROP_VIEWFINDER_SUPPORTED_CAPS,
PROP_VIEWFINDER_CAPS
};
enum
@ -449,6 +451,28 @@ gst_camera_bin_class_init (GstCameraBinClass * klass)
"The video sink of the viewfinder.",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class,
PROP_VIEWFINDER_CAPS,
g_param_spec_boxed ("viewfinder-caps",
"Viewfinder caps",
"Restricts the caps that can be used on the viewfinder",
GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* TODO review before going stable
* We have viewfinder-supported-caps that returns the caps that the
* camerasrc can produce on its viewfinder pad, this could easily be
* confused with what the viewfinder-sink accepts.
*
* Do we want to add a 'viewfinder-sink-supported-caps' or maybe change
* the name of this property?
*/
g_object_class_install_property (object_class,
PROP_VIEWFINDER_SUPPORTED_CAPS,
g_param_spec_boxed ("viewfinder-supported-caps",
"Camera source Viewfinder pad supported caps",
"The caps that the camera source can produce on the viewfinder pad",
GST_TYPE_CAPS, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstCameraBin::capture-start:
* @camera: the camera bin element
@ -854,6 +878,29 @@ gst_camera_bin_set_property (GObject * object, guint prop_id,
}
}
break;
case PROP_VIEWFINDER_CAPS:{
GstPad *pad = NULL;
if (camera->src)
pad =
gst_element_get_static_pad (camera->src,
GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME);
GST_DEBUG_OBJECT (camera,
"Setting viewfinder capture caps to %" GST_PTR_FORMAT,
gst_value_get_caps (value));
/* set the capsfilter caps and notify the src to renegotiate */
g_object_set (camera->viewfinderbin_capsfilter, "caps",
gst_value_get_caps (value), NULL);
if (pad) {
GST_DEBUG_OBJECT (camera, "Pushing renegotiate on %s",
GST_PAD_NAME (pad));
GST_PAD_EVENTFUNC (pad) (pad, gst_camera_bin_new_event_renegotiate ());
gst_object_unref (pad);
}
}
break;
case PROP_POST_PREVIEWS:
camera->post_previews = g_value_get_boolean (value);
if (camera->src
@ -934,6 +981,7 @@ gst_camera_bin_get_property (GObject * object, guint prop_id,
g_value_set_object (value, camera->src);
break;
case PROP_VIDEO_CAPTURE_SUPPORTED_CAPS:
case PROP_VIEWFINDER_SUPPORTED_CAPS:
case PROP_IMAGE_CAPTURE_SUPPORTED_CAPS:{
GstPad *pad;
GstCaps *caps;
@ -941,8 +989,10 @@ gst_camera_bin_get_property (GObject * object, guint prop_id,
if (prop_id == PROP_VIDEO_CAPTURE_SUPPORTED_CAPS) {
padname = GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME;
} else {
} else if (prop_id == PROP_IMAGE_CAPTURE_SUPPORTED_CAPS) {
padname = GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME;
} else {
padname = GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME;
}
if (camera->src) {
@ -982,6 +1032,13 @@ gst_camera_bin_get_property (GObject * object, guint prop_id,
gst_caps_unref (caps);
}
break;
case PROP_VIEWFINDER_CAPS:{
GstCaps *caps = NULL;
g_object_get (camera->viewfinderbin_capsfilter, "caps", &caps, NULL);
gst_value_set_caps (value, caps);
gst_caps_unref (caps);
}
break;
case PROP_POST_PREVIEWS:
g_value_set_boolean (value, camera->post_previews);
break;