Track

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Object Hierarchy:

Description:

Content:

Properties:

• public Caps caps { get; construct; }
  The capabilities used to choose the output of the Track's elements.
• public uint64 duration { get; }
  Current duration of the track
• public string id { owned get; set; }
  The nlecomposition:id of the underlying nlecomposition.
• public bool mixing { get; set construct; }
  Whether the track should support the mixing of Layer data, such as composing the video data of each layer (when part of the video data is transparent, the next layer will become visible) or adding together the audio data.
• public Caps restriction_caps { owned get; set; }
  The capabilities that specifies the final output format of the Track.
• public TrackType track_type { get; construct; }
  The track type of the track.

Creation methods:

• public Track (TrackType type, owned Caps caps)
  Creates a new track with the given track-type and caps.

Methods:

• public bool add_element (TrackElement object)
  See add_element, which also gives an error.
• public bool add_element_full (TrackElement object) throws Error
  Adds the given track element to the track, which takes ownership of the element.
• public bool commit ()
  Commits all the pending changes for the elements contained in the track.
• public unowned Caps get_caps ()
  Get the caps of the track.
• public List<TrackElement> get_elements ()
  Gets the track elements contained in the track.
• public bool get_mixing ()
  Gets the mixing of the track.
• public Caps get_restriction_caps ()
  Gets the restriction_caps of the track.
• public unowned Timeline? get_timeline ()
  Get the timeline this track belongs to.
• public bool remove_element (TrackElement object)
  See remove_element_full, which also returns an error.
• public bool remove_element_full (TrackElement object) throws Error
  Removes the given track element from the track, which revokes ownership of the element.
• public void set_mixing (bool mixing)
  Sets the mixing for the track.
• public void set_restriction_caps (Caps caps)
  Sets the restriction_caps for the track.
• public void set_timeline (Timeline timeline)
  Informs the track that it belongs to the given timeline.
• public void update_restriction_caps (Caps caps)
  Updates the restriction_caps of the track using the fields found in the given caps.

Signals:

• public signal void commited ()
  This signal will be emitted once the changes initiated by commit have been executed in the backend.
• public signal void track_element_added (TrackElement effect)
  Will be emitted after a track element is added to the track.
• public signal void track_element_removed (TrackElement effect)
  Will be emitted after a track element is removed from the track.

Fields:

• public TrackType type

Inherited Members: