// Called every frame that the timeline is evaluated. This is called prior to
// PrepareFrame on any of its input playables.
public override void PrepareFrame(Playable playable, FrameData info)
{
// Searches for clips that are in the 'preload' area and prepares them for playback
var timelineTime = playable.GetGraph().GetRootPlayable(0).GetTime();
for (int i = 0; i < playable.GetInputCount(); i++)
{
if (playable.GetInput(i).GetPlayableType() != typeof(VideoPlayableBehaviour))
{
continue;
}
if (playable.GetInputWeight(i) <= 0.0f)
{
ScriptPlayable <VideoPlayableBehaviour> scriptPlayable = (ScriptPlayable <VideoPlayableBehaviour>)playable.GetInput(i);
VideoPlayableBehaviour videoPlayableBehaviour = scriptPlayable.GetBehaviour();
double preloadTime = Math.Max(0.0, videoPlayableBehaviour.preloadTime);
double clipStart = videoPlayableBehaviour.startTime;
if (timelineTime > clipStart - preloadTime && timelineTime <= clipStart)
{
videoPlayableBehaviour.PrepareVideo();
}
}
}
}
// Creates the playable that represents the instance that plays this clip.
// Here a hidden VideoPlayer is being created for the PlayableBehaviour to use
// to control playback. The PlayableBehaviour is responsible for deleting the player.
public override Playable CreatePlayable(PlayableGraph graph, GameObject go)
{
Camera camera = targetCamera.Resolve(graph.GetResolver());
if (camera == null)
{
camera = Camera.main;
}
// If we are unable to create a player, return a playable with no behaviour attached.
VideoPlayer player = CreateVideoPlayer(camera, audioSource.Resolve(graph.GetResolver()));
if (player == null)
{
return(Playable.Create(graph));
}
ScriptPlayable <VideoPlayableBehaviour> playable =
ScriptPlayable <VideoPlayableBehaviour> .Create(graph);
VideoPlayableBehaviour playableBehaviour = playable.GetBehaviour();
playableBehaviour.videoPlayer = player;
playableBehaviour.preloadTime = preloadTime;
playableBehaviour.clipInTime = clipInTime;
playableBehaviour.startTime = startTime;
return(playable);
}