;; -*- scheme -*-
; virtual function definitions
; define-vfunc is g*mm-specific
; These are hand-written.

; GstAllocator

(define-vfunc alloc
  (of-object "GstAllocator")
  (return-type "GstMemory*")
  (parameters
   '("gsize" "size")
   '("GstAllocationParams*" "params")
  )
)

(define-vfunc free
  (of-object "GstAllocator")
  (return-type "void")
  (parameters
   '("GstMemory*" "memory")
  )
)

; GstAudioFilter

(define-vfunc setup
  (of-object "GstAudioFilter")
  (return-type "gboolean")
  (parameters
   '("GstAudioRingBufferSpec*" "format")
  )
)

; GstAudioSink

(define-vfunc open
  (of-object "GstAudioSink")
  (return-type "gboolean")
)

(define-vfunc prepare
  (of-object "GstAudioSink")
  (return-type "gboolean")
  (parameters
   '("GstAudioRingBufferSpec*" "spec")
  )
)

(define-vfunc unprepare
  (of-object "GstAudioSink")
  (return-type "gboolean")
)

(define-vfunc close
  (of-object "GstAudioSink")
  (return-type "gboolean")
)

(define-vfunc write
  (of-object "GstAudioSink")
  (return-type "guint")
  (parameters
   '("gpointer" "data")
   '("guint" "length")
  )
)

(define-vfunc delay
  (of-object "GstAudioSink")
  (return-type "guint")
)

(define-vfunc reset
  (of-object "GstAudioSink")
  (return-type "void")
)

; GstAudioSrc

(define-vfunc open
  (of-object "GstAudioSrc")
  (return-type "gboolean")
)

(define-vfunc prepare
  (of-object "GstAudioSrc")
  (return-type "gboolean")
  (parameters
   '("GstAudioRingBufferSpec*" "spec")
  )
)

(define-vfunc unprepare
  (of-object "GstAudioSrc")
  (return-type "gboolean")
)

(define-vfunc close
  (of-object "GstAudioSrc")
  (return-type "gboolean")
)

(define-vfunc read
  (of-object "GstAudioSrc")
  (return-type "guint")
  (parameters
   '("gpointer" "data")
   '("guint" "length")
  )
)

(define-vfunc delay
  (of-object "GstAudioSrc")
  (return-type "guint")
)

(define-vfunc reset
  (of-object "GstAudioSrc")
  (return-type "void")
)

; GstAudioBaseSink

(define-vfunc create_ringbuffer
  (of-object "GstAudioBaseSink")
  (return-type "GstAudioRingBuffer*")
)

; GstAudioBaseSrc

(define-vfunc create_ringbuffer
  (of-object "GstAudioBaseSrc")
  (return-type "GstAudioRingBuffer*")
)

; GstBaseSink

(define-vfunc get_caps
  (of-object "GstBaseSink")
  (return-type "GstCaps*")
  (parameters
   '("GstCaps*" "filter")
  )
)

(define-vfunc set_caps
  (of-object "GstBaseSink")
  (return-type "gboolean")
  (parameters
   '("GstCaps*" "caps")
  )
)

(define-vfunc buffer_alloc
  (of-object "GstBaseSink")
  (return-type "GstFlowReturn")
  (parameters
   '("guint64" "offset")
   '("guint" "size")
   '("GstCaps*" "caps")
   '("GstBuffer**" "buf")
  )
)

(define-vfunc get_times
  (of-object "GstBaseSink")
  (return-type "void")
  (parameters
   '("GstBuffer*" "buffer")
   '("GstClockTime*" "start")
   '("GstClockTime*" "end")
  )
)

(define-vfunc start
  (of-object "GstBaseSink")
  (return-type "gboolean")
)

(define-vfunc stop
  (of-object "GstBaseSink")
  (return-type "gboolean")
)

(define-vfunc unlock
  (of-object "GstBaseSink")
  (return-type "gboolean")
)

(define-vfunc event
  (of-object "GstBaseSink")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "event")
  )
)

(define-vfunc preroll
  (of-object "GstBaseSink")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBuffer*" "buffer")
  )
)

(define-vfunc render
  (of-object "GstBaseSink")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBuffer*" "buffer")
  )
)

(define-vfunc async_play
  (of-object "GstBaseSink")
  (return-type "GstStateChangeReturn")
)

(define-vfunc activate_pull
  (of-object "GstBaseSink")
  (return-type "gboolean")
  (parameters
   '("gboolean" "active")
  )
)

(define-vfunc fixate
  (of-object "GstBaseSink")
  (return-type "GstCaps*")
  (parameters
   '("GstCaps*" "caps")
  )
)

(define-vfunc unlock_stop
  (of-object "GstBaseSink")
  (return-type "gboolean")
)

(define-vfunc render_list
  (of-object "GstBaseSink")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBufferList*" "buffer_list")
  )
)

; GstBaseSrc

(define-vfunc get_caps
  (of-object "GstBaseSrc")
  (return-type "GstCaps*")
  (parameters
   '("GstCaps*" "filter")
  )
)

(define-vfunc set_caps
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("GstCaps*" "caps")
  )
)

(define-vfunc negotiate
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc newsegment
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc start
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc stop
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc get_times
  (of-object "GstBaseSrc")
  (return-type "void")
  (parameters
   '("GstBuffer*" "buffer")
   '("GstClockTime*" "start")
   '("GstClockTime*" "end")
  )
)

(define-vfunc get_size
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("guint64*" "size")
  )
)

(define-vfunc is_seekable
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc unlock
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc event
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "event")
  )
)

(define-vfunc create
  (of-object "GstBaseSrc")
  (return-type "GstFlowReturn")
  (parameters
   '("guint64" "offset")
   '("guint" "size")
   '("GstBuffer**" "buf")
  )
)

(define-vfunc do_seek
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("GstSegment*" "segment")
  )
)

(define-vfunc query
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("GstQuery*" "query")
  )
)

(define-vfunc check_get_range
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc fixate
  (of-object "GstBaseSrc")
  (return-type "GstCaps*")
  (parameters
   '("GstCaps*" "caps")
  )
)

(define-vfunc unlock_stop
  (of-object "GstBaseSrc")
  (return-type "gboolean")
)

(define-vfunc prepare_seek_segment
  (of-object "GstBaseSrc")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "seek")
   '("GstSegment*" "segment")
  )
)

; GstBaseTransform

(define-vfunc transform_caps
  (of-object "GstBaseTransform")
  (return-type "GstCaps*")
  (parameters
   '("GstPadDirection" "direction")
   '("GstCaps*" "caps")
   '("GstCaps*" "filter")
  )
)

(define-vfunc fixate_caps
  (of-object "GstBaseTransform")
  (return-type "GstCaps*")
  (parameters
   '("GstPadDirection" "direction")
   '("GstCaps*" "caps")
   '("GstCaps*" "othercaps")
  )
)

(define-vfunc transform_size
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstPadDirection" "direction")
   '("GstCaps*" "caps")
   '("guint" "size")
   '("GstCaps*" "othercaps")
   '("guint*" "othersize")
  )
)

(define-vfunc get_unit_size
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstCaps*" "caps")
   '("gsize*" "size")
  )
)

(define-vfunc set_caps
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstCaps*" "incaps")
   '("GstCaps*" "outcaps")
  )
)

(define-vfunc start
  (of-object "GstBaseTransform")
  (return-type "gboolean")
)

(define-vfunc stop
  (of-object "GstBaseTransform")
  (return-type "gboolean")
)

(define-vfunc event
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "event")
  )
)

(define-vfunc transform
  (of-object "GstBaseTransform")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBuffer*" "inbuf")
   '("GstBuffer*" "outbuf")
  )
)
(define-vfunc transform_ip
  (of-object "GstBaseTransform")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBuffer*" "buf")
  )
)

(define-vfunc prepare_output_buffer
  (of-object "GstBaseTransform")
  (return-type "GstFlowReturn")
  (parameters
   '("GstBuffer*" "input")
   '("gint" "size")
   '("GstCaps*" "caps")
   '("GstBuffer**" "buffer")
  )
)

(define-vfunc src_event
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "event")
  )
)

(define-vfunc before_transform
  (of-object "GstBaseTransform")
  (return-type "void")
  (parameters
   '("GstBuffer*" "buffer")
  )
)

(define-vfunc accept_caps
  (of-object "GstBaseTransform")
  (return-type "gboolean")
  (parameters
   '("GstPadDirection" "direction")
   '("GstCaps*" "caps")
  )
)

; GstBin

(define-vfunc add_element
  (of-object "GstBin")
  (return-type "gboolean")
  (parameters
   '("GstElement*" "element")
  )
)

(define-vfunc remove_element
  (of-object "GstBin")
  (return-type "gboolean")
  (parameters
   '("GstElement*" "element")
  )
)

(define-vfunc handle_message
  (of-object "GstBin")
  (return-type "void")
  (parameters
   '("GstMessage*" "message")
  )
)

; GstCddaBaseSrc

(define-vfunc open
  (of-object "GstCddaBaseSrc")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "device")
  )
)

(define-vfunc close
  (of-object "GstCddaBaseSrc")
  (return-type "void")
)

(define-vfunc read_sector
  (of-object "GstCddaBaseSrc")
  (return-type "GstBuffer*")
  (parameters
   '("gint" "sector")
  )
)

(define-vfunc get_default_device
  (of-object "GstCddaBaseSrc")
  (return-type "gchar*")
)

(define-vfunc probe_devices
  (of-object "GstCddaBaseSrc")
  (return-type "gchar**")
)

; GstChildProxy

(define-vfunc get_child_by_index
  (of-object "GstChildProxy")
  (return-type "GObject*")
  (parameters
   '("guint" "index")
  )
)

(define-vfunc get_children_count
  (of-object "GstChildProxy")
  (return-type "guint")
)

; GstClock

(define-vfunc change_resolution
  (of-object "GstClock")
  (return-type "GstClockTime")
  (parameters
   '("GstClockTime" "old_resolution")
   '("GstClockTime" "new_resolution")
  )
)

(define-vfunc get_resolution
  (of-object "GstClock")
  (return-type "GstClockTime")
)

(define-vfunc get_internal_time
  (of-object "GstClock")
  (return-type "GstClockTime")
)

(define-vfunc wait
  (of-object "GstClock")
  (return-type "GstClockReturn")
  (parameters
   '("GstClockEntry*" "entry")
   '("GstClockTimeDiff*" "jitter")
  )
)

(define-vfunc wait_async
  (of-object "GstClock")
  (return-type "GstClockReturn")
  (parameters
   '("GstClockEntry*" "entry")
  )
)

(define-vfunc unschedule
  (of-object "GstClock")
  (return-type "void")
  (parameters
   '("GstClockEntry*" "entry")
  )
)

(define-vfunc wait_jitter
  (of-object "GstClock")
  (return-type "GstClockReturn")
  (parameters
   '("GstClockEntry*" "entry")
   '("GstClockTimeDiff*" "jitter")
  )
)

; GstColorBalance

(define-vfunc list_channels
  (of-object "GstColorBalance")
  (return-type "const-GList*")
)

(define-vfunc set_value
  (of-object "GstColorBalance")
  (return-type "void")
  (parameters
   '("GstColorBalanceChannel*" "balance")
   '("gint" "value")
  )
)

(define-vfunc get_value
  (of-object "GstColorBalance")
  (return-type "gint")
  (parameters
   '("GstColorBalanceChannel*" "balance")
  )
)

; GstElement

(define-vfunc request_new_pad
  (of-object "GstElement")
  (return-type "GstPad*")
  (parameters
   '("GstPadTemplate*" "templ")
   '("const-gchar*" "name")
   '("const-GstCaps*" "caps")
  )
)

(define-vfunc release_pad
  (of-object "GstElement")
  (return-type "void")
  (parameters
   '("GstPad*" "pad")
  )
)

(define-vfunc get_state
  (of-object "GstElement")
  (return-type "GstStateChangeReturn")
  (parameters
   '("GstState*" "state")
   '("GstState*" "pending")
   '("GstClockTime" "timeout")
  )
)

(define-vfunc set_state
  (of-object "GstElement")
  (return-type "GstStateChangeReturn")
  (parameters
   '("GstState" "state")
  )
)

(define-vfunc change_state
  (of-object "GstElement")
  (return-type "GstStateChangeReturn")
  (parameters
   '("GstStateChange" "transition")
  )
)

(define-vfunc set_bus
  (of-object "GstElement")
  (return-type "void")
  (parameters
   '("GstBus*" "bus")
  )
)

(define-vfunc provide_clock
  (of-object "GstElement")
  (return-type "GstClock*")
)

(define-vfunc set_clock
  (of-object "GstElement")
  (return-type "gboolean")
  (parameters
   '("GstClock*" "clock")
  )
)

(define-vfunc get_index
  (of-object "GstElement")
  (return-type "GstIndex*")
)

(define-vfunc set_index
  (of-object "GstElement")
  (return-type "void")
  (parameters
   '("GstIndex*" "index")
  )
)

(define-vfunc send_event
  (of-object "GstElement")
  (return-type "gboolean")
  (parameters
   '("GstEvent*" "event")
  )
)

(define-vfunc get_query_types
  (of-object "GstElement")
  (return-type "const-GstQueryType*")
)

(define-vfunc query
  (of-object "GstElement")
  (return-type "gboolean")
  (parameters
   '("GstQuery*" "query")
  )
)

(define-vfunc set_context
  (of-object "GstElement")
  (return-type "void")
  (parameters
   '("GstContext*" "context")
  )
)

; GstImplementsInterface

(define-vfunc supported
  (of-object "GstImplementsInterface")
  (return-type "gboolean")
  (parameters
   '("GType" "iface_type")
  )
)

; GstIndex

(define-vfunc get_writer_id
  (of-object "GstIndex")
  (return-type "gboolean")
  (parameters
   '("gint*" "writer_id")
   '("gchar*" "writer_string")
  )
)

(define-vfunc commit
  (of-object "GstIndex")
  (return-type "void")
  (parameters
   '("gint" "id")
  )
)

(define-vfunc add_entry
  (of-object "GstIndex")
  (return-type "void")
  (parameters
   '("GstIndexEntry*" "entry")
  )
)

(define-vfunc get_assoc_entry
  (of-object "GstIndex")
  (return-type "GstIndexEntry*")
  (parameters
   '("guint" "id")
   '("GstIndexLookupMethod" "method")
   '("GstAssocFlags" "flags")
   '("GstFormat" "format")
   '("gint64" "value")
   '("GCompareDataFunc" "func")
   '("gpointer" "user_data")
  )
)

; GstMessage

(define-vfunc finalize
  (of-object "GstMessage")
  (return-type "void")
)

; GstMixer

(define-vfunc list_tracks
  (of-object "GstMixer")
  (return-type "const-GList*")
)

(define-vfunc get_volume
  (of-object "GstMixer")
  (return-type "void")
  (parameters
   '("GstMixerTrack*" "track")
   '("gint*" "volumes")
  )
)

(define-vfunc set_volume
  (of-object "GstMixer")
  (return-type "void")
  (parameters
   '("GstMixerTrack*" "track")
   '("gint*" "volumes")
  )
)

(define-vfunc set_mute
  (of-object "GstMixer")
  (return-type "void")
  (parameters
   '("GstMixerTrack*" "track")
   '("gboolean" "mute")
  )
)

(define-vfunc set_record
  (of-object "GstMixer")
  (return-type "void")
  (parameters
   '("GstMixerTrack*" "track")
   '("gboolean" "record")
  )
)

(define-vfunc set_option
  (of-object "GstMixer")
  (return-type "void")
  (parameters
   '("GstMixerOptions*" "opts")
   '("gchar*" "value")
  )
)

(define-vfunc get_option
  (of-object "GstMixer")
  (return-type "const-gchar*")
  (parameters
   '("GstMixerOptions*" "opts")
  )
)

(define-vfunc get_mixer_flags
  (of-object "GstMixer")
  (return-type "GstMixerFlags")
)

; GstNavigation

(define-vfunc send_event
  (of-object "GstNavigation")
  (return-type "void")
  (parameters
   '("GstStructure*" "structure")
  )
)

; GstObject

(define-vfunc save_thyself
  (of-object "GstObject")
  (return-type "GstXmlNodePtr")
  (parameters
   '("GstXmlNodePtr" "parent")
  )
)

(define-vfunc restore_thyself
  (of-object "GstObject")
  (return-type "void")
  (parameters
   '("GstXmlNodePtr" "self_node")
  )
)

; GstPreset

(define-vfunc get_preset_names
  (of-object "GstPreset")
  (return-type "gchar**")
)

(define-vfunc get_property_names
  (of-object "GstPreset")
  (return-type "gchar**")
)

(define-vfunc load_preset
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "name")
  )
)

(define-vfunc save_preset
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "name")
  )
)

(define-vfunc rename_preset
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "old_name")
   '("const-gchar*" "new_name")
  )
)

(define-vfunc delete_preset
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "name")
  )
)

(define-vfunc set_meta
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "name")
   '("const-gchar*" "tag")
   '("const-gchar*" "value")
  )
)

(define-vfunc get_meta
  (of-object "GstPreset")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "name")
   '("const-gchar*" "tag")
   '("gchar**" "value")
  )
)

; GstPropertyProbe

(define-vfunc get_properties
  (of-object "GstPropertyProbe")
  (return-type "const-GList*")
)

(define-vfunc needs_probe
  (of-object "GstPropertyProbe")
  (return-type "gboolean")
  (parameters
   '("guint" "prop_id")
   '("const-GParamSpec*" "pspec")
  )
)

(define-vfunc probe_property
  (of-object "GstPropertyProbe")
  (return-type "void")
  (parameters
   '("guint" "prop_id")
   '("const-GParamSpec*" "pspec")
  )
)

(define-vfunc get_values
  (of-object "GstPropertyProbe")
  (return-type "GValueArray*")
  (parameters
   '("guint" "prop_id")
   '("const-GParamSpec*" "pspec")
  )
)

; GstAudioRingBuffer

(define-vfunc open_device
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc acquire
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
  (parameters
   '("GstAudioRingBufferSpec*" "spec")
  )
)

(define-vfunc release
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc close_device
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc start
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc pause
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc resume
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc stop
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
)

(define-vfunc delay
  (of-object "GstAudioRingBuffer")
  (return-type "guint")
)

(define-vfunc activate
  (of-object "GstAudioRingBuffer")
  (return-type "gboolean")
  (parameters
   '("gboolean" "active")
  )
)

(define-vfunc commit
  (of-object "GstAudioRingBuffer")
  (return-type "guint")
  (parameters
   '("guint64*" "sample")
   '("guint8*" "data")
   '("gint" "in_samples")
   '("gint" "out_samples")
   '("gint*" "accum")
  )
)

(define-vfunc clear_all
  (of-object "GstAudioRingBuffer")
  (return-type "void")
)

; GstTaskPool

(define-vfunc prepare
  (of-object "GstTaskPool")
  (return-type "void")
  (parameters
   '("GError**" "error")
  )
)

(define-vfunc cleanup
  (of-object "GstTaskPool")
  (return-type "void")
)

(define-vfunc push
  (of-object "GstTaskPool")
  (return-type "gpointer")
  (parameters
   '("GstTaskPoolFunction" "func")
   '("gpointer" "user_data")
   '("GError**" "error")
  )
)

(define-vfunc join
  (of-object "GstTaskPool")
  (return-type "void")
  (parameters
   '("gpointer" "id")
  )
)

; GstTuner

(define-vfunc list_channels
  (of-object "GstTuner")
  (return-type "const-GList*")
)

(define-vfunc set_channel
  (of-object "GstTuner")
  (return-type "void")
  (parameters
   '("GstTunerChannel*" "channel")
  )
)

(define-vfunc get_channel
  (of-object "GstTuner")
  (return-type "GstTunerChannel*")
)

(define-vfunc list_norms
  (of-object "GstTuner")
  (return-type "const-GList*")
)

(define-vfunc set_norm
  (of-object "GstTuner")
  (return-type "void")
  (parameters
   '("GstTunerNorm*" "norm")
  )
)

(define-vfunc get_norm
  (of-object "GstTuner")
  (return-type "GstTunerNorm*")
)

(define-vfunc set_frequency
  (of-object "GstTuner")
  (return-type "void")
  (parameters
   '("GstTunerChannel*" "channel")
   '("gulong" "frequency")
  )
)

(define-vfunc get_frequency
  (of-object "GstTuner")
  (return-type "gulong")
  (parameters
   '("GstTunerChannel*" "channel")
  )
)

(define-vfunc signal_strength
  (of-object "GstTuner")
  (return-type "gint")
  (parameters
   '("GstTunerChannel*" "channel")
  )
)

; GstURIHandler

(define-vfunc get_uri
  (of-object "GstURIHandler")
  (return-type "gchar*")
)

(define-vfunc set_uri
  (of-object "GstURIHandler")
  (return-type "gboolean")
  (parameters
   '("const-gchar*" "uri")
   '("GError**" "error")
  )
)

; GstVideoOrientation

(define-vfunc get_hflip
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gboolean*" "flip")
  )
)

(define-vfunc get_vflip
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gboolean*" "flip")
  )
)

(define-vfunc get_hcenter
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gint*" "center")
  )
)

(define-vfunc get_vcenter
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gint*" "center")
  )
)

(define-vfunc set_hflip
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gboolean" "flip")
  )
)

(define-vfunc set_vflip
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gboolean" "flip")
  )
)

(define-vfunc set_hcenter
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gint" "center")
  )
)

(define-vfunc set_vcenter
  (of-object "GstVideoOrientation")
  (return-type "gboolean")
  (parameters
   '("gint" "center")
  )
)

; GstXOverlay

(define-vfunc set_xwindow_id
  (of-object "GstXOverlay")
  (return-type "void")
  (parameters
   '("gulong" "xwindow_id")
  )
)

(define-vfunc expose
  (of-object "GstXOverlay")
  (return-type "void")
)

(define-vfunc handle_events
  (of-object "GstXOverlay")
  (return-type "void")
  (parameters
   '("gboolean" "handle_events")
  )
)
