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36 lines
1.6 KiB
C#
36 lines
1.6 KiB
C#
1 year ago
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using System;
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using UnityEngine;
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using UnityEngine.Playables;
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namespace Timeline.Samples
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{
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// The runtime instance of the VideoTrack. It is responsible for letting the VideoPlayableBehaviours
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// they need to start loading the video
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public sealed class VideoSchedulerPlayableBehaviour : PlayableBehaviour
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{
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// Called every frame that the timeline is evaluated. This is called prior to
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// PrepareFrame on any of its input playables.
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public override void PrepareFrame(Playable playable, FrameData info)
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{
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// Searches for clips that are in the 'preload' area and prepares them for playback
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var timelineTime = playable.GetGraph().GetRootPlayable(0).GetTime();
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for (int i = 0; i < playable.GetInputCount(); i++)
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{
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if (playable.GetInput(i).GetPlayableType() != typeof(VideoPlayableBehaviour))
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continue;
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if (playable.GetInputWeight(i) <= 0.0f)
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{
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ScriptPlayable<VideoPlayableBehaviour> scriptPlayable = (ScriptPlayable<VideoPlayableBehaviour>)playable.GetInput(i);
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VideoPlayableBehaviour videoPlayableBehaviour = scriptPlayable.GetBehaviour();
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double preloadTime = Math.Max(0.0, videoPlayableBehaviour.preloadTime);
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double clipStart = videoPlayableBehaviour.startTime;
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if (timelineTime > clipStart - preloadTime && timelineTime <= clipStart)
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videoPlayableBehaviour.PrepareVideo();
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}
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}
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}
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}
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}
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