diff options
| -rw-r--r-- | gst-libs/gst/propertyprobe/propertyprobe.c | 236 | ||||
| -rw-r--r-- | gst-libs/gst/propertyprobe/propertyprobe.h | 62 |
2 files changed, 202 insertions, 96 deletions
diff --git a/gst-libs/gst/propertyprobe/propertyprobe.c b/gst-libs/gst/propertyprobe/propertyprobe.c index f0cfe940..a8de4a9a 100644 --- a/gst-libs/gst/propertyprobe/propertyprobe.c +++ b/gst-libs/gst/propertyprobe/propertyprobe.c @@ -23,15 +23,17 @@ #include "config.h" #endif -#include <gst/propertyprobe/propertyprobe.h> +#include <string.h> -static void gst_property_probe_iface_init (GstPropertyProbeInterface *iface); +#include "propertyprobe.h" enum { - NEED_PROBE, + SIGNAL_PROBE_NEEDED, LAST_SIGNAL }; +static void gst_property_probe_iface_init (GstPropertyProbeInterface *iface); + static guint gst_property_probe_signals[LAST_SIGNAL] = { 0 }; GType @@ -52,11 +54,10 @@ gst_property_probe_get_type (void) NULL, }; - gst_property_probe_type = g_type_register_static (G_TYPE_INTERFACE, - "GstPropertyProbe", - &gst_property_probe_info, 0); - - g_type_interface_add_prerequisite (gst_property_probe_type, G_TYPE_OBJECT); + gst_property_probe_type = + g_type_register_static (G_TYPE_INTERFACE, + "GstPropertyProbe", + &gst_property_probe_info, 0); } return gst_property_probe_type; @@ -68,109 +69,190 @@ gst_property_probe_iface_init (GstPropertyProbeInterface *iface) static gboolean initialized = FALSE; if (!initialized) { - gst_property_probe_signals[NEED_PROBE] = - g_signal_new ("need_probe", - GST_TYPE_PROPERTY_PROBE, - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (GstPropertyProbeInterface, need_probe), - NULL, - NULL, - gst_marshal_VOID__STRING, - G_TYPE_NONE, 1, - G_TYPE_STRING); - + gst_property_probe_signals[SIGNAL_PROBE_NEEDED] = + g_signal_new ("probe_needed", G_TYPE_FROM_CLASS (iface), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstPropertyProbeInterface, probe_needed), + NULL, NULL, g_cclosure_marshal_VOID__POINTER, + G_TYPE_NONE, 1, G_TYPE_POINTER); initialized = TRUE; } /* default virtual functions */ - iface->get_list = NULL; - iface->probe_property = NULL; - iface->get_property_info = NULL; - iface->is_probed = NULL; + iface->get_properties = NULL; + iface->get_values = NULL; } -char ** -gst_property_probe_get_list (GstElement *element) +const GList * +gst_property_probe_get_properties (GstPropertyProbe *probe) { GstPropertyProbeInterface *iface; - - g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL); - iface = GST_PROPERTY_PROBE_GET_IFACE (element); - if (iface->get_list) { - return iface->get_list (element); + g_return_val_if_fail (probe != NULL, NULL); + + iface = GST_PROPERTY_PROBE_GET_IFACE (probe); + + if (iface->get_properties) + return iface->get_properties (probe); + + return NULL; +} + +const GParamSpec * +gst_property_probe_get_property (GstPropertyProbe *probe, + const gchar *name) +{ + const GList *pspecs = gst_property_probe_get_properties (probe); + + g_return_val_if_fail (probe != NULL, NULL); + g_return_val_if_fail (name != NULL, NULL); + + while (pspecs) { + const GParamSpec *pspec = pspecs->data; + + if (!strcmp (pspec->name, name)) + return pspec; + + pspecs = pspecs->next; } return NULL; } void -gst_property_probe_probe_property (GstElement *element, - const char *property) +gst_property_probe_probe_property (GstPropertyProbe *probe, + const GParamSpec *pspec) { GstPropertyProbeInterface *iface; - GParamSpec *ps; - - g_return_if_fail (GST_IS_PROPERTY_PROBE (element)); - g_return_if_fail (GST_STATE (element) == GST_STATE_NULL); - - ps = g_object_class_find_property (G_OBJECT_CLASS (element), property); - if (ps == NULL) return; - - iface = GST_PROPERTY_PROBE_GET_IFACE (element); - if (iface->probe_property) { - iface->probe_property (element, ps); - } + + g_return_if_fail (probe != NULL); + g_return_if_fail (pspec != NULL); + + iface = GST_PROPERTY_PROBE_GET_IFACE (probe); + + if (iface->probe_property) + iface->probe_property (probe, pspec->param_id, pspec); } -gchar ** -gst_property_probe_get_property_info (GstElement *element, - const gchar *property) +void +gst_property_probe_probe_property_name (GstPropertyProbe *probe, + const gchar *name) { - GstPropertyProbeInterface *iface; - GParamSpec *ps; - - g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL); - - ps = g_object_class_find_property (G_OBJECT_CLASS (element), property); - if (ps == NULL) return NULL; - - iface = GST_PROPERTY_PROBE_GET_IFACE (element); - if (iface->get_property_info) { - return iface->get_property_info (element, ps); + const GParamSpec *pspec; + + g_return_if_fail (probe != NULL); + g_return_if_fail (name != NULL); + + pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name); + if (!pspec) { + g_warning ("No such property %s", name); + return; } - return NULL; + + gst_property_probe_probe_property (probe, pspec); } gboolean -gst_property_probe_is_probed (GstElement *element, - const char *property) +gst_property_probe_needs_probe (GstPropertyProbe *probe, + const GParamSpec *pspec) { GstPropertyProbeInterface *iface; - GParamSpec *ps; - - g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), FALSE); - ps = g_object_class_find_property (G_OBJECT_CLASS (element), property); - if (ps == NULL) return FALSE; + g_return_val_if_fail (probe != NULL, FALSE); + g_return_val_if_fail (pspec != NULL, FALSE); + + iface = GST_PROPERTY_PROBE_GET_IFACE (probe); + + if (iface->needs_probe) + return iface->needs_probe (probe, pspec->param_id, pspec); - iface = GST_PROPERTY_PROBE_GET_IFACE (element); - if (iface->is_probed) { - return iface->is_probed (element, ps); - } return FALSE; } -gchar ** -gst_property_probe_get_possibilities (GstElement *element, - const char *property) +gboolean +gst_property_probe_needs_probe_name (GstPropertyProbe *probe, + const gchar *name) +{ + const GParamSpec *pspec; + + g_return_val_if_fail (probe != NULL, FALSE); + g_return_val_if_fail (name != NULL, FALSE); + + pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name); + if (!pspec) { + g_warning ("No such property %s", name); + return FALSE; + } + + return gst_property_probe_needs_probe (probe, pspec); +} + +GValueArray * +gst_property_probe_get_values (GstPropertyProbe *probe, + const GParamSpec *pspec) +{ + GstPropertyProbeInterface *iface; + + g_return_val_if_fail (probe != NULL, NULL); + g_return_val_if_fail (pspec != NULL, NULL); + + iface = GST_PROPERTY_PROBE_GET_IFACE (probe); + + if (iface->get_values) + return iface->get_values (probe, pspec->param_id, pspec); + + return NULL; +} + +GValueArray * +gst_property_probe_get_values_name (GstPropertyProbe *probe, + const gchar *name) { - g_return_val_if_fail (GST_IS_PROPERTY_PROBE (element), NULL); + const GParamSpec *pspec; + + g_return_val_if_fail (probe != NULL, NULL); + g_return_val_if_fail (name != NULL, NULL); - if (!gst_property_probe_is_probed (element, property)){ - gst_property_probe_probe_property (element, property); + pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name); + if (!pspec) { + g_warning ("No such property %s", name); + return NULL; } - return gst_property_probe_get_property_info (element, property); + return gst_property_probe_get_values (probe, pspec); } + +GValueArray * +gst_property_probe_probe_and_get_values (GstPropertyProbe *probe, + const GParamSpec *pspec) +{ + GstPropertyProbeInterface *iface; + + g_return_val_if_fail (probe != NULL, NULL); + g_return_val_if_fail (pspec != NULL, NULL); + + iface = GST_PROPERTY_PROBE_GET_IFACE (probe); + + if (gst_property_probe_needs_probe (probe, pspec)) + gst_property_probe_probe_property (probe, pspec); + + return gst_property_probe_get_values (probe, pspec); +} + +GValueArray * +gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe, + const gchar *name) +{ + const GParamSpec *pspec; + + g_return_val_if_fail (probe != NULL, NULL); + g_return_val_if_fail (name != NULL, NULL); + + pspec = g_object_class_find_property (G_OBJECT_CLASS (probe), name); + if (!pspec) { + g_warning ("No such property %s", name); + return NULL; + } + + return gst_property_probe_probe_and_get_values (probe, pspec); +} diff --git a/gst-libs/gst/propertyprobe/propertyprobe.h b/gst-libs/gst/propertyprobe/propertyprobe.h index 5fc9cf66..3fe08f0b 100644 --- a/gst-libs/gst/propertyprobe/propertyprobe.h +++ b/gst-libs/gst/propertyprobe/propertyprobe.h @@ -41,32 +41,56 @@ typedef struct _GstPropertyProbeInterface { GTypeInterface klass; /* signals */ - void (*need_probe) (GstPropertyProbe *property_probe, const gchar *property); + void (*probe_needed) (GstPropertyProbe *probe, + const GParamSpec *pspec); /* virtual functions */ - gchar ** (*get_list) (GstElement *property_probe); - void (*probe_property) (GstElement *property_probe, const GParamSpec *property); - gchar ** (*get_property_info) (GstElement *property_probe, - const GParamSpec *property); - gboolean (*is_probed) (GstElement *element, const GParamSpec *property); - + 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); + GST_CLASS_PADDING } GstPropertyProbeInterface; -GType gst_property_probe_get_type (void); +GType gst_property_probe_get_type (void); /* virtual class function wrappers */ -gchar ** gst_property_probe_get_list (GstElement *element); -void gst_property_probe_probe_property (GstElement *element, - const gchar *property); -gchar ** gst_property_probe_get_property_info (GstElement *element, - const gchar *property); -gboolean gst_property_probe_is_probed (GstElement *element, - const gchar *property); - -/* utility functions */ -gchar ** gst_property_probe_get_possibilities (GstElement *element, - const gchar *property); + +/* returns list of GParamSpecs */ +const GList * gst_property_probe_get_properties (GstPropertyProbe *probe); +const GParamSpec *gst_property_probe_get_property (GstPropertyProbe *probe, + const gchar *name); + +/* probe one property */ +void gst_property_probe_probe_property (GstPropertyProbe *probe, + const GParamSpec *pspec); +void gst_property_probe_probe_property_name (GstPropertyProbe *probe, + const gchar *name); + +/* do we need a probe? */ +gboolean gst_property_probe_needs_probe (GstPropertyProbe *probe, + const GParamSpec *pspec); +gboolean gst_property_probe_needs_probe_name (GstPropertyProbe *probe, + const gchar *name); + +/* returns list of GValues */ +GValueArray * gst_property_probe_get_values (GstPropertyProbe *probe, + const GParamSpec *pspec); +GValueArray * gst_property_probe_get_values_name (GstPropertyProbe *probe, + const gchar *name); + +/* sugar */ +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); G_END_DECLS |