gst_device_provider_can_monitor ()

gboolean
gst_device_provider_can_monitor (GstDeviceProvider *provider);

gst_device_provider_class_add_metadata ()

void
gst_device_provider_class_add_metadata
                               (GstDeviceProviderClass *klass,
                                const gchar *key,
                                const gchar *value);

Set key with value as metadata in klass .

Since: 1.4

gst_device_provider_class_add_static_metadata ()

void
gst_device_provider_class_add_static_metadata
                               (GstDeviceProviderClass *klass,
                                const gchar *key,
                                const gchar *value);

Set key with value as metadata in klass .

Same as gst_device_provider_class_add_metadata(), but value must be a static string or an inlined string, as it will not be copied. (GStreamer plugins will be made resident once loaded, so this function can be used even from dynamically loaded plugins.)

Since: 1.4

gst_device_provider_class_get_metadata ()

const gchar *
gst_device_provider_class_get_metadata
                               (GstDeviceProviderClass *klass,
                                const gchar *key);

Get metadata with key in klass .

Since: 1.4

gst_device_provider_class_set_metadata ()

void
gst_device_provider_class_set_metadata
                               (GstDeviceProviderClass *klass,
                                const gchar *longname,
                                const gchar *classification,
                                const gchar *description,
                                const gchar *author);

Sets the detailed information for a GstDeviceProviderClass.

Since: 1.4

gst_device_provider_class_set_static_metadata ()

void
gst_device_provider_class_set_static_metadata
                               (GstDeviceProviderClass *klass,
                                const gchar *longname,
                                const gchar *classification,
                                const gchar *description,
                                const gchar *author);

Sets the detailed information for a GstDeviceProviderClass.

Same as gst_device_provider_class_set_metadata(), but longname , classification , description , and author must be static strings or inlined strings, as they will not be copied. (GStreamer plugins will be made resident once loaded, so this function can be used even from dynamically loaded plugins.)

Since: 1.4

gst_device_provider_device_add ()

void
gst_device_provider_device_add (GstDeviceProvider *provider,
                                GstDevice *device);

Posts a message on the provider's GstBus to inform applications that a new device has been added.

This is for use by subclasses.

device 's reference count will be incremented, and any floating reference will be removed (see gst_object_ref_sink()).

Since: 1.4

gst_device_provider_device_remove ()

void
gst_device_provider_device_remove (GstDeviceProvider *provider,
                                   GstDevice *device);

Posts a message on the provider's GstBus to inform applications that a device has been removed.

This is for use by subclasses.

Since: 1.4

gst_device_provider_get_bus ()

GstBus *
gst_device_provider_get_bus (GstDeviceProvider *provider);

Gets the GstBus of this GstDeviceProvider

Since: 1.4

gst_device_provider_get_devices ()

GList *
gst_device_provider_get_devices (GstDeviceProvider *provider);

Gets a list of devices that this provider understands. This may actually probe the hardware if the provider is not currently started.

Since: 1.4

gst_device_provider_get_factory ()

GstDeviceProviderFactory *
gst_device_provider_get_factory (GstDeviceProvider *provider);

Retrieves the factory that was used to create this device provider.

Since: 1.4

gst_device_provider_get_metadata ()

const gchar *
gst_device_provider_get_metadata (GstDeviceProvider *provider,
                                  const gchar *key);

Get metadata with key in provider .

Since: 1.14

gst_device_provider_register ()

gboolean
gst_device_provider_register (GstPlugin *plugin,
                              const gchar *name,
                              guint rank,
                              GType type);

Create a new device providerfactory capable of instantiating objects of the type and add the factory to plugin .

Since: 1.4

gst_device_provider_start ()

gboolean
gst_device_provider_start (GstDeviceProvider *provider);

Starts providering the devices. This will cause GST_MESSAGE_DEVICE_ADDED and GST_MESSAGE_DEVICE_REMOVED messages to be posted on the provider's bus when devices are added or removed from the system.

Since the GstDeviceProvider is a singleton, gst_device_provider_start() may already have been called by another user of the object, gst_device_provider_stop() needs to be called the same number of times.

Since: 1.4

gst_device_provider_stop ()

void
gst_device_provider_stop (GstDeviceProvider *provider);

Decreases the use-count by one. If the use count reaches zero, this GstDeviceProvider will stop providering the devices. This needs to be called the same number of times that gst_device_provider_start() was called.

Since: 1.4

struct GstDeviceProvider

struct GstDeviceProvider {
  GstObject         parent;

  /* Protected by the Object lock */
  GList *devices;
};

The structure of the base GstDeviceProvider

Since: 1.4

struct GstDeviceProviderClass

struct GstDeviceProviderClass {
  GstObjectClass    parent_class;

  GstDeviceProviderFactory     *factory;

  GList*      (*probe) (GstDeviceProvider * provider);

  gboolean    (*start) (GstDeviceProvider * provider);
  void        (*stop)  (GstDeviceProvider * provider);
};

The structure of the base GstDeviceProviderClass

Since: 1.4