Seamlessly Loop Video Playback

Owned by BrightSign TechDocs
Sept 13, 2024
2 min read

Seamless looping essentially puts the video file into a circular buffer and you can seamlessly loop only a single video at a time in a zone, not multiple back-to-back videos.

All tracks in the file, even non-video/audio tracks, must be exactly the same length down to the sample, not just the metadata length value, or there will be a gap at the loop point.
numberOfSamples x sampleDuration must be the same for all tracks.  Any difference between tracks in the file will cause the loop to not be seamless.

Encoding the Media

Files should be encoded with Fast Start (Web-Optimized/Progressive Download) enabled so the MOOV header is at the front/top of the file.

For Seamless Video Looping Only (No Audio)

  • XCx55, XTx45, XDx35, HDx25, LS445, XTx44/43, XDx34/33, HDx24, LS424, 4Kx42: Supports seamless looping of H.265 or H.264 .mp4 or .mov files.

  • LS425, XDx32/30, HDx23/22/20, LS423/22: Supports seamless looping of H.264 .mp4 or .mov files. These models do not support seamless looping of transport streams.

  • HDx10: Can seamlessly loop an H.264 transport stream (which does not use an .mp4 or .mov container). 

For Seamless Audio and Video Looping

  • XCx55, XTx45, XDx35, HDx25, LS445, XTx44/43, XDx34/XDx33, HDx24, LS424, 4Kx42: Supports seamless audio/video looping of .mov files with H.265 or H.264 encoded video and PCM SOWT encoded audio.

  • LS425, XDx32/30, HDx23/22/20, LS423/22: Supports seamless audio/video looping of .mov files with H.264 encoded video and PCM SOWT encoded audio.

  • HDx10: Does not support seamless audio/video looping.

For Seamless Video Wall Looping

We recommend using BrightWall to create a seamless-looping video wall. 

  • XCx55, XTx45, XDx35, HDx25, LS445, XTx44/43, XDx34/33, HDx24, LS424, 4Kx42: Supports seamless video looping of .mp4 or .mov files with H.265 or H.264 encoded video. If audio is included, the audio/video should be formatted as an .mov file and the audio should be encoded as SOWT PCM for seamless audio.

  • LS425, XDx32/30, HDx23/22/20, LS423/22: Supports seamless video looping of .mp4 or .mov files with H.264 encoded video. If audio is included, the audio/video should be formatted as an .mov file and the audio should be encoded as SOWT PCM for seamless audio.

Creating a Presentation in BrightAuthor

You can use either a simple BrightAuthor interactive playlist or a script to loop a single video.

BrightAuthor Project

If the BrightAuthor project has a single video, with no Media End event connecting it to another state or to itself, it will loop seamlessly.

In BrightAuthor versions 4.1.0.x and later, you will need to specify the Loop media option in the Media Properties of the video state.

Custom Script

Copy the following script to a text file and rename it autorun.brs. Change the filename of video.ts in the script to match the video you wish to loop.

v=CreateObject("roVideoPlayer") v.SetLoopMode(true) v.PlayFile("video.ts") while true sleep(10000) end while

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