optimization
[AVPro] Achieve Stutter-Free Seamless Video Looping on Windows
Solution
Unity 2021.x - Unity 6.3.x
Published Fri, May 1
Dynamically loading video from StreamingAssets on Windows often results in visible stutters or frame drops at the loop point. Traditional methods like Seek() logic or cross-fading via two MediaPlayer components fail to provide a frame-perfect transition, especially with high-resolution source files.
Seamless video looping on a Windows build is achieved using the AVPro Video plugin by leveraging the native playback path and optimized encoding.
- Integrate the AVPro Video plugin and add a MediaPlayer component to your script.
- Set the Video Pipeline to Media Foundation in the MediaPlayer inspector to utilize native Windows hardware acceleration.
- Enable the Loop toggle and ensure the Auto Play is configured if necessary.
- Encode source files to HEVC (H.265) using FFMPEG to minimize the I-frame interval, which reduces the seek time for the MediaPlayer.
Additional Tips
- Use the Hap codec if file size is not a concern, as it is designed specifically for high-performance looping.
- Ensure that the
StreamingAssetspath is referenced correctly usingApplication.streamingAssetsPath. - Use QueueEvent to handle logic specifically when the MediaPlayer reaches the end of the file.
TL;DR
Achieve frame-perfect looping by utilizing native Media Foundation pipelines and HEVC encoding within the MediaPlayer.
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Content inspired by a Unity discussion post.