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Some prettification fixes to this interface... Make it look good, make it simple and make it more GObject'ific. This ...
Original commit message from CVS: Some prettification fixes to this interface... Make it look good, make it simple and make it more GObject'ific. This means that it now works largely almost the same as GObject (concerning arguments that you give to the functions, and layout of the virtual functions). I've also got an OSS implementation for this, but it needs one small change before I commit that. Expect that this weekend or so.
This commit is contained in:
Ronald S. Bultje
parent
e93f67308a
commit
2c0266b2bb
2 changed files with 199 additions and 93 deletions
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@ -23,15 +23,17 @@
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#include "config.h"
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#endif
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#include <gst/propertyprobe/propertyprobe.h>
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#include <string.h>
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static void gst_property_probe_iface_init (GstPropertyProbeInterface *iface);
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#include "propertyprobe.h"
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enum {
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NEED_PROBE,
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SIGNAL_PROBE_NEEDED,
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LAST_SIGNAL
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};
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static void gst_property_probe_iface_init (GstPropertyProbeInterface *iface);
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static guint gst_property_probe_signals[LAST_SIGNAL] = { 0 };
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GType
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@ -52,11 +54,10 @@ gst_property_probe_get_type (void)
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NULL,
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};
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gst_property_probe_type = g_type_register_static (G_TYPE_INTERFACE,
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"GstPropertyProbe",
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&gst_property_probe_info, 0);
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g_type_interface_add_prerequisite (gst_property_probe_type, G_TYPE_OBJECT);
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gst_property_probe_type =
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g_type_register_static (G_TYPE_INTERFACE,
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"GstPropertyProbe",
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&gst_property_probe_info, 0);
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}
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return gst_property_probe_type;
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@ -68,109 +69,190 @@ gst_property_probe_iface_init (GstPropertyProbeInterface *iface)
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static gboolean initialized = FALSE;
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if (!initialized) {
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gst_property_probe_signals[NEED_PROBE] =
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g_signal_new ("need_probe",
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GST_TYPE_PROPERTY_PROBE,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPropertyProbeInterface, need_probe),
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NULL,
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NULL,
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gst_marshal_VOID__STRING,
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G_TYPE_NONE, 1,
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G_TYPE_STRING);
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gst_property_probe_signals[SIGNAL_PROBE_NEEDED] =
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g_signal_new ("probe_needed", G_TYPE_FROM_CLASS (iface), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPropertyProbeInterface, probe_needed),
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NULL, NULL, g_cclosure_marshal_VOID__POINTER,
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G_TYPE_NONE, 1, G_TYPE_POINTER);
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initialized = TRUE;
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}
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/* default virtual functions */
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iface->get_list = NULL;
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iface->probe_property = NULL;
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iface->get_property_info = NULL;
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iface->is_probed = NULL;
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iface->get_properties = NULL;
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iface->get_values = NULL;
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}
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char **
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gst_property_probe_get_list (GstElement *element)
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const GList *
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gst_property_probe_get_properties (GstPropertyProbe *probe)
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{
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GstPropertyProbeInterface *iface;
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g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL);
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iface = GST_PROPERTY_PROBE_GET_IFACE (element);
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if (iface->get_list) {
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return iface->get_list (element);
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g_return_val_if_fail (probe != NULL, NULL);
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iface = GST_PROPERTY_PROBE_GET_IFACE (probe);
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if (iface->get_properties)
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return iface->get_properties (probe);
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return NULL;
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}
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const GParamSpec *
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gst_property_probe_get_property (GstPropertyProbe *probe,
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const gchar *name)
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{
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const GList *pspecs = gst_property_probe_get_properties (probe);
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g_return_val_if_fail (probe != NULL, NULL);
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g_return_val_if_fail (name != NULL, NULL);
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while (pspecs) {
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const GParamSpec *pspec = pspecs->data;
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if (!strcmp (pspec->name, name))
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return pspec;
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pspecs = pspecs->next;
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}
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return NULL;
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}
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void
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gst_property_probe_probe_property (GstElement *element,
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const char *property)
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gst_property_probe_probe_property (GstPropertyProbe *probe,
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const GParamSpec *pspec)
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{
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GstPropertyProbeInterface *iface;
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GParamSpec *ps;
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g_return_if_fail (GST_IS_PROPERTY_PROBE (element));
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g_return_if_fail (GST_STATE (element) == GST_STATE_NULL);
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ps = g_object_class_find_property (G_OBJECT_CLASS (element), property);
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if (ps == NULL) return;
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iface = GST_PROPERTY_PROBE_GET_IFACE (element);
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if (iface->probe_property) {
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iface->probe_property (element, ps);
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}
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g_return_if_fail (probe != NULL);
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g_return_if_fail (pspec != NULL);
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iface = GST_PROPERTY_PROBE_GET_IFACE (probe);
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if (iface->probe_property)
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iface->probe_property (probe, pspec->param_id, pspec);
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}
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gchar **
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gst_property_probe_get_property_info (GstElement *element,
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const gchar *property)
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void
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gst_property_probe_probe_property_name (GstPropertyProbe *probe,
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const gchar *name)
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{
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GstPropertyProbeInterface *iface;
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GParamSpec *ps;
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g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL);
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const GParamSpec *pspec;
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ps = g_object_class_find_property (G_OBJECT_CLASS (element), property);
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if (ps == NULL) return NULL;
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iface = GST_PROPERTY_PROBE_GET_IFACE (element);
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if (iface->get_property_info) {
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return iface->get_property_info (element, ps);
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g_return_if_fail (probe != NULL);
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g_return_if_fail (name != NULL);
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pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name);
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if (!pspec) {
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g_warning ("No such property %s", name);
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return;
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}
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return NULL;
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gst_property_probe_probe_property (probe, pspec);
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}
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gboolean
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gst_property_probe_is_probed (GstElement *element,
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const char *property)
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gst_property_probe_needs_probe (GstPropertyProbe *probe,
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const GParamSpec *pspec)
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{
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GstPropertyProbeInterface *iface;
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GParamSpec *ps;
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g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), FALSE);
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ps = g_object_class_find_property (G_OBJECT_CLASS (element), property);
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if (ps == NULL) return FALSE;
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g_return_val_if_fail (probe != NULL, FALSE);
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g_return_val_if_fail (pspec != NULL, FALSE);
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iface = GST_PROPERTY_PROBE_GET_IFACE (probe);
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if (iface->needs_probe)
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return iface->needs_probe (probe, pspec->param_id, pspec);
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iface = GST_PROPERTY_PROBE_GET_IFACE (element);
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if (iface->is_probed) {
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return iface->is_probed (element, ps);
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}
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return FALSE;
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}
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gchar **
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gst_property_probe_get_possibilities (GstElement *element,
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const char *property)
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gboolean
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gst_property_probe_needs_probe_name (GstPropertyProbe *probe,
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const gchar *name)
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{
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g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL);
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const GParamSpec *pspec;
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if (!gst_property_probe_is_probed (element, property)){
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gst_property_probe_probe_property (element, property);
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g_return_val_if_fail (probe != NULL, FALSE);
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g_return_val_if_fail (name != NULL, FALSE);
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pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name);
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if (!pspec) {
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g_warning ("No such property %s", name);
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return FALSE;
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}
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return gst_property_probe_get_property_info (element, property);
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return gst_property_probe_needs_probe (probe, pspec);
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}
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GValueArray *
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gst_property_probe_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec)
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{
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GstPropertyProbeInterface *iface;
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g_return_val_if_fail (probe != NULL, NULL);
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g_return_val_if_fail (pspec != NULL, NULL);
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iface = GST_PROPERTY_PROBE_GET_IFACE (probe);
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if (iface->get_values)
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return iface->get_values (probe, pspec->param_id, pspec);
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return NULL;
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}
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GValueArray *
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gst_property_probe_get_values_name (GstPropertyProbe *probe,
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const gchar *name)
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{
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const GParamSpec *pspec;
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g_return_val_if_fail (probe != NULL, NULL);
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g_return_val_if_fail (name != NULL, NULL);
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pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name);
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if (!pspec) {
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g_warning ("No such property %s", name);
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return NULL;
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}
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return gst_property_probe_get_values (probe, pspec);
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}
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GValueArray *
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gst_property_probe_probe_and_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec)
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{
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GstPropertyProbeInterface *iface;
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g_return_val_if_fail (probe != NULL, NULL);
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g_return_val_if_fail (pspec != NULL, NULL);
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iface = GST_PROPERTY_PROBE_GET_IFACE (probe);
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if (gst_property_probe_needs_probe (probe, pspec))
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gst_property_probe_probe_property (probe, pspec);
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return gst_property_probe_get_values (probe, pspec);
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}
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GValueArray *
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gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe,
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const gchar *name)
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{
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const GParamSpec *pspec;
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g_return_val_if_fail (probe != NULL, NULL);
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g_return_val_if_fail (name != NULL, NULL);
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pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name);
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if (!pspec) {
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g_warning ("No such property %s", name);
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return NULL;
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}
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return gst_property_probe_probe_and_get_values (probe, pspec);
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}
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@ -41,32 +41,56 @@ typedef struct _GstPropertyProbeInterface {
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GTypeInterface klass;
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/* signals */
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void (*need_probe) (GstPropertyProbe *property_probe, const gchar *property);
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void (*probe_needed) (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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/* virtual functions */
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gchar ** (*get_list) (GstElement *property_probe);
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void (*probe_property) (GstElement *property_probe, const GParamSpec *property);
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gchar ** (*get_property_info) (GstElement *property_probe,
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const GParamSpec *property);
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gboolean (*is_probed) (GstElement *element, const GParamSpec *property);
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const GList * (*get_properties) (GstPropertyProbe *probe);
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gboolean (*needs_probe) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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void (*probe_property) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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GValueArray * (*get_values) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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GST_CLASS_PADDING
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} GstPropertyProbeInterface;
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GType gst_property_probe_get_type (void);
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GType gst_property_probe_get_type (void);
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/* virtual class function wrappers */
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gchar ** gst_property_probe_get_list (GstElement *element);
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void gst_property_probe_probe_property (GstElement *element,
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const gchar *property);
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gchar ** gst_property_probe_get_property_info (GstElement *element,
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const gchar *property);
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gboolean gst_property_probe_is_probed (GstElement *element,
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const gchar *property);
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/* utility functions */
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gchar ** gst_property_probe_get_possibilities (GstElement *element,
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const gchar *property);
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/* returns list of GParamSpecs */
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const GList * gst_property_probe_get_properties (GstPropertyProbe *probe);
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const GParamSpec *gst_property_probe_get_property (GstPropertyProbe *probe,
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const gchar *name);
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/* probe one property */
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void gst_property_probe_probe_property (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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void gst_property_probe_probe_property_name (GstPropertyProbe *probe,
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const gchar *name);
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/* do we need a probe? */
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gboolean gst_property_probe_needs_probe (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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gboolean gst_property_probe_needs_probe_name (GstPropertyProbe *probe,
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const gchar *name);
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/* returns list of GValues */
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GValueArray * gst_property_probe_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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GValueArray * gst_property_probe_get_values_name (GstPropertyProbe *probe,
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const gchar *name);
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/* sugar */
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GValueArray * gst_property_probe_probe_and_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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GValueArray * gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe,
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const gchar *name);
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G_END_DECLS
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