![]() |
![]() |
![]() |
GStreamer Base Plugins 0.10 Library Reference Manual | ![]() |
---|---|---|---|---|
#include <gst/interfaces/propertyprobe.h> GstPropertyProbe; GstPropertyProbeInterface; const GList* gst_property_probe_get_properties (GstPropertyProbe *probe); const GParamSpec* gst_property_probe_get_property (GstPropertyProbe *probe, const gchar *name); GValueArray* gst_property_probe_get_values (GstPropertyProbe *probe, const GParamSpec *pspec); GValueArray* gst_property_probe_get_values_name (GstPropertyProbe *probe, const gchar *name); gboolean gst_property_probe_needs_probe (GstPropertyProbe *probe, const GParamSpec *pspec); gboolean gst_property_probe_needs_probe_name (GstPropertyProbe *probe, const gchar *name); GValueArray* gst_property_probe_probe_and_get_values (GstPropertyProbe *probe, const GParamSpec *pspec); GValueArray* gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe, const gchar *name); void gst_property_probe_probe_property (GstPropertyProbe *probe, const GParamSpec *pspec); void gst_property_probe_probe_property_name (GstPropertyProbe *probe, const gchar *name);
typedef struct { GTypeInterface klass; /* signals */ void (*probe_needed) (GstPropertyProbe *probe, const GParamSpec *pspec); /* virtual functions */ const GList * (*get_properties) (GstPropertyProbe *probe); gboolean (*needs_probe) (GstPropertyProbe *probe, guint prop_id, const GParamSpec *pspec); void (*probe_property) (GstPropertyProbe *probe, guint prop_id, const GParamSpec *pspec); GValueArray * (*get_values) (GstPropertyProbe *probe, guint prop_id, const GParamSpec *pspec); gpointer _gst_reserved[GST_PADDING]; } GstPropertyProbeInterface;
const GList* gst_property_probe_get_properties (GstPropertyProbe *probe);
Get a list of properties for which probing is supported.
probe : |
the GstPropertyProbe to get the properties for. |
Returns : | the list of properties for which probing is supported by this element. |
const GParamSpec* gst_property_probe_get_property (GstPropertyProbe *probe, const gchar *name);
probe : |
|
name : |
|
Returns : |
GValueArray* gst_property_probe_get_values (GstPropertyProbe *probe, const GParamSpec *pspec);
Gets the possible (probed) values for the given property, requires the property to have been probed before.
probe : |
the GstPropertyProbe object. |
pspec : |
the GParamSpec property identifier. |
Returns : | A list of valid values for the given property. |
GValueArray* gst_property_probe_get_values_name (GstPropertyProbe *probe, const gchar *name);
Same as gst_property_probe_get_values()
.
probe : |
the GstPropertyProbe object. |
name : |
the name of the property to get values for. |
Returns : | A list of valid values for the given property. |
gboolean gst_property_probe_needs_probe (GstPropertyProbe *probe, const GParamSpec *pspec);
Checks whether a property needs a probe. This might be because the property wasn't initialized before, or because host setup changed. This might be, for example, because a new device was added, and thus device probing needs to be refreshed to display the new device.
probe : |
the GstPropertyProbe object to which the given property belongs. |
pspec : |
a GParamSpec that identifies the property to check. |
Returns : | TRUE if the property needs a new probe, FALSE if not. |
gboolean gst_property_probe_needs_probe_name (GstPropertyProbe *probe, const gchar *name);
Same as gst_property_probe_needs_probe()
.
probe : |
the GstPropertyProbe object to which the given property belongs. |
name : |
the name of the property to check. |
Returns : | TRUE if the property needs a new probe, FALSE if not. |
GValueArray* gst_property_probe_probe_and_get_values (GstPropertyProbe *probe, const GParamSpec *pspec);
Check whether the given property requires a new probe. If so, fo the probe. After that, retrieve a value list. Meant as a utility function that wraps the above functions.
probe : |
the GstPropertyProbe object. |
pspec : |
The GParamSpec property identifier. |
Returns : | the list of valid values for this property. |
GValueArray* gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe, const gchar *name);
Same as gst_property_probe_probe_and_get_values()
.
probe : |
the GstPropertyProbe object. |
name : |
the name of the property to get values for. |
Returns : | the list of valid values for this property. |
void gst_property_probe_probe_property (GstPropertyProbe *probe, const GParamSpec *pspec);
probe : |
|
pspec : |
void gst_property_probe_probe_property_name (GstPropertyProbe *probe, const gchar *name);
Runs a probe on the given property.
probe : |
the GstPropertyProbe to check. |
name : |
name of the property to return. |
void user_function (GstPropertyProbe *gstpropertyprobe, gpointer arg1, gpointer user_data) : Run Last
gstpropertyprobe : |
the object which received the signal. |
arg1 : |
|
user_data : |
user data set when the signal handler was connected. |