Class

GtkMediaStream

Description [src]

abstract class Gtk.MediaStream : GObject.Object
  implements Gdk.Paintable {
  /* No available fields */
}

GtkMediaStream is the integration point for media playback inside GTK.

GTK provides an implementation of the GtkMediaStream interface that is called GtkMediaFile.

Apart from application-facing API for stream playback, GtkMediaStream has a number of APIs that are only useful for implementations and should not be used in applications: gtk_media_stream_prepared(), gtk_media_stream_unprepared(), gtk_media_stream_update(), gtk_media_stream_ended(), gtk_media_stream_seek_success(), gtk_media_stream_seek_failed(), gtk_media_stream_gerror(), gtk_media_stream_error(), gtk_media_stream_error_valist().

Hierarchy

Instance methods

gtk_media_stream_ended

Pauses the media stream and marks it as ended.

deprecated: 4.4

gtk_media_stream_error

Sets self into an error state using a printf()-style format string.

gtk_media_stream_error_valist

Sets self into an error state using a printf()-style format string.

gtk_media_stream_gerror

Sets self into an error state.

gtk_media_stream_get_duration

Gets the duration of the stream.

gtk_media_stream_get_ended

Returns whether the streams playback is finished.

gtk_media_stream_get_error

If the stream is in an error state, returns the GError explaining that state.

gtk_media_stream_get_loop

Returns whether the stream is set to loop.

gtk_media_stream_get_muted

Returns whether the audio for the stream is muted.

gtk_media_stream_get_playing

Return whether the stream is currently playing.

gtk_media_stream_get_timestamp

Returns the current presentation timestamp in microseconds.

gtk_media_stream_get_volume

Returns the volume of the audio for the stream.

gtk_media_stream_has_audio

Returns whether the stream has audio.

gtk_media_stream_has_video

Returns whether the stream has video.

gtk_media_stream_is_prepared

Returns whether the stream has finished initializing.

gtk_media_stream_is_seekable

Checks if a stream may be seekable.

gtk_media_stream_is_seeking

Checks if there is currently a seek operation going on.

gtk_media_stream_pause

Pauses playback of the stream.

gtk_media_stream_play

Starts playing the stream.

gtk_media_stream_prepared

Same as gtk_media_stream_stream_prepared().

deprecated: 4.4

gtk_media_stream_realize

Called by users to attach the media stream to a GdkSurface they manage.

gtk_media_stream_seek

Start a seek operation on self to timestamp.

gtk_media_stream_seek_failed

Ends a seek operation started via GtkMediaStream.seek() as a failure.

gtk_media_stream_seek_success

Ends a seek operation started via GtkMediaStream.seek() successfully.

gtk_media_stream_set_loop

Sets whether the stream should loop.

gtk_media_stream_set_muted

Sets whether the audio stream should be muted.

gtk_media_stream_set_playing

Starts or pauses playback of the stream.

gtk_media_stream_set_volume

Sets the volume of the audio stream.

gtk_media_stream_stream_ended

Pauses the media stream and marks it as ended.

since: 4.4

gtk_media_stream_stream_prepared

Called by GtkMediaStream implementations to advertise the stream being ready to play and providing details about the stream.

since: 4.4

gtk_media_stream_stream_unprepared

Resets a given media stream implementation.

since: 4.4

gtk_media_stream_unprepared

Same as gtk_media_stream_stream_unprepared().

deprecated: 4.4

gtk_media_stream_unrealize

Undoes a previous call to gtk_media_stream_realize().

gtk_media_stream_update

Media stream implementations should regularly call this function to update the timestamp reported by the stream.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Methods inherited from GdkPaintable (9)

gdk_paintable_compute_concrete_size

Compute a concrete size for the GdkPaintable.

gdk_paintable_get_current_image

Gets an immutable paintable for the current contents displayed by paintable.

gdk_paintable_get_flags

Get flags for the paintable.

gdk_paintable_get_intrinsic_aspect_ratio

Gets the preferred aspect ratio the paintable would like to be displayed at.

gdk_paintable_get_intrinsic_height

Gets the preferred height the paintable would like to be displayed at.

gdk_paintable_get_intrinsic_width

Gets the preferred width the paintable would like to be displayed at.

gdk_paintable_invalidate_contents

Called by implementations of GdkPaintable to invalidate their contents.

gdk_paintable_invalidate_size

Called by implementations of GdkPaintable to invalidate their size.

gdk_paintable_snapshot

Snapshots the given paintable with the given width and height.

Properties

Gtk.MediaStream:duration

The stream’s duration in microseconds or 0 if unknown.

Gtk.MediaStream:ended

Set when playback has finished.

Gtk.MediaStream:error

NULL for a properly working stream or the GError that the stream is in.

Gtk.MediaStream:has-audio

Whether the stream contains audio.

Gtk.MediaStream:has-video

Whether the stream contains video.

Gtk.MediaStream:loop

Try to restart the media from the beginning once it ended.

Gtk.MediaStream:muted

Whether the audio stream should be muted.

Gtk.MediaStream:playing

Whether the stream is currently playing.

Gtk.MediaStream:prepared

Whether the stream has finished initializing and existence of audio and video is known.

Gtk.MediaStream:seekable

Set unless the stream is known to not support seeking.

Gtk.MediaStream:seeking

Set while a seek is in progress.

Gtk.MediaStream:timestamp

The current presentation timestamp in microseconds.

Gtk.MediaStream:volume

Volume of the audio stream.

Signals

Signals inherited from GObject (1)

GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Signals inherited from GdkPaintable (2)

GdkPaintable::invalidate-contents

Emitted when the contents of the paintable change.

GdkPaintable::invalidate-size

Emitted when the intrinsic size of the paintable changes.

Class structure

struct GtkMediaStreamClass {
  GObjectClass parent_class;
  gboolean (* play) (
    GtkMediaStream* self
  );
  void (* pause) (
    GtkMediaStream* self
  );
  void (* seek) (
    GtkMediaStream* self,
    gint64 timestamp
  );
  void (* update_audio) (
    GtkMediaStream* self,
    gboolean muted,
    double volume
  );
  void (* realize) (
    GtkMediaStream* self,
    GdkSurface* surface
  );
  void (* unrealize) (
    GtkMediaStream* self,
    GdkSurface* surface
  );
  void (* _gtk_reserved1) (
void
  );
  void (* _gtk_reserved2) (
void
  );
  void (* _gtk_reserved3) (
void
  );
  void (* _gtk_reserved4) (
void
  );
  void (* _gtk_reserved5) (
void
  );
  void (* _gtk_reserved6) (
void
  );
  void (* _gtk_reserved7) (
void
  );
  void (* _gtk_reserved8) (
void
  );
  
}

No description available.

Class members

parent_class: GObjectClass: No description available.
play: gboolean (* play) ( GtkMediaStream* self ): No description available.
pause: void (* pause) ( GtkMediaStream* self ): No description available.
seek: void (* seek) ( GtkMediaStream* self, gint64 timestamp ): No description available.
update_audio: void (* update_audio) ( GtkMediaStream* self, gboolean muted, double volume ): No description available.
realize: void (* realize) ( GtkMediaStream* self, GdkSurface* surface ): No description available.
unrealize: void (* unrealize) ( GtkMediaStream* self, GdkSurface* surface ): No description available.
_gtk_reserved1: void (* _gtk_reserved1) ( void ): No description available.
_gtk_reserved2: void (* _gtk_reserved2) ( void ): No description available.
_gtk_reserved3: void (* _gtk_reserved3) ( void ): No description available.
_gtk_reserved4: void (* _gtk_reserved4) ( void ): No description available.
_gtk_reserved5: void (* _gtk_reserved5) ( void ): No description available.
_gtk_reserved6: void (* _gtk_reserved6) ( void ): No description available.
_gtk_reserved7: void (* _gtk_reserved7) ( void ): No description available.
_gtk_reserved8: void (* _gtk_reserved8) ( void ): No description available.