134 lines
4.5 KiB
C#
134 lines
4.5 KiB
C#
using UnityEngine;
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using UnityEngine.Playables;
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using UnityEngine.Video;
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[System.Serializable]
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public class VideoPlayerBehaviour : PlayableBehaviour
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{
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public VideoClip videoClip;
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public float playbackSpeed = 1f;
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private VideoPlayer m_VideoPlayer;
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private PlayableDirector m_Director;
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private bool m_VideoSetup = false;
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private bool m_WasTimelinePlaying = false;
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private double m_LastSyncTime = -1;
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private int m_SyncCooldownFrames = 0;
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private const int SYNC_COOLDOWN_DURATION = 5;
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public override void OnPlayableCreate(Playable playable)
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{
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if (m_Director == null)
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{
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m_Director = Object.FindFirstObjectByType<PlayableDirector>();
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}
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m_VideoSetup = false;
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m_WasTimelinePlaying = false;
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m_LastSyncTime = -1;
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m_SyncCooldownFrames = 0;
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}
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public override void ProcessFrame(Playable playable, FrameData info, object playerData)
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{
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if (playerData == null) return;
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m_VideoPlayer = playerData as VideoPlayer;
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if (m_VideoPlayer == null) return;
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if (m_SyncCooldownFrames > 0)
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{
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m_SyncCooldownFrames--;
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}
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if (!m_VideoSetup && videoClip != null)
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{
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m_VideoPlayer.clip = videoClip;
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m_VideoSetup = true;
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}
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if (info.weight > 0.5f)
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{
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bool isTimelinePlaying = m_Director != null && m_Director.state == PlayState.Playing;
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double normalizedTime = playable.GetTime() / playable.GetDuration();
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double targetTime = normalizedTime * videoClip.length;
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if (isTimelinePlaying != m_WasTimelinePlaying)
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{
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Debug.Log($"Timeline state changed: {m_WasTimelinePlaying} -> {isTimelinePlaying}");
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if (isTimelinePlaying)
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{
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Debug.Log($"Starting playback at time: {targetTime:F3} (Timeline: {playable.GetTime():F3})");
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m_VideoPlayer.time = targetTime;
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m_VideoPlayer.playbackSpeed = playbackSpeed;
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m_LastSyncTime = targetTime;
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m_SyncCooldownFrames = SYNC_COOLDOWN_DURATION;
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if (!m_VideoPlayer.isPlaying)
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{
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m_VideoPlayer.Play();
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}
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}
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else
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{
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Debug.Log($"Pausing at time: {m_VideoPlayer.time:F3}");
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if (m_VideoPlayer.isPlaying)
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{
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m_VideoPlayer.Pause();
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}
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}
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m_WasTimelinePlaying = isTimelinePlaying;
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}
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if (isTimelinePlaying)
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{
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if (m_SyncCooldownFrames <= 0)
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{
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double timeDiff = Mathf.Abs((float)(m_VideoPlayer.time - targetTime));
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if (timeDiff > 0.3)
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{
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Debug.Log($"Large drift detected - Re-syncing: Video={m_VideoPlayer.time:F3}, Target={targetTime:F3}, Diff={timeDiff:F3}");
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if (m_VideoPlayer.isPrepared)
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{
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m_VideoPlayer.time = targetTime;
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m_LastSyncTime = targetTime;
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m_SyncCooldownFrames = SYNC_COOLDOWN_DURATION;
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}
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}
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}
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}
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else
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{
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if (m_SyncCooldownFrames <= 0)
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{
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double timeDiff = Mathf.Abs((float)(m_VideoPlayer.time - targetTime));
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if (timeDiff > 0.033)
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{
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if (m_VideoPlayer.isPrepared)
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{
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m_VideoPlayer.time = targetTime;
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m_LastSyncTime = targetTime;
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m_SyncCooldownFrames = 2;
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}
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}
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}
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}
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}
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}
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public override void OnBehaviourPause(Playable playable, FrameData info)
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{
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Debug.Log("Clip ended - stopping video");
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if (m_VideoPlayer != null)
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{
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m_VideoPlayer.Pause();
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}
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m_WasTimelinePlaying = false;
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m_LastSyncTime = -1;
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m_SyncCooldownFrames = 0;
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}
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} |