Cav Movie/audio file input
  • 11 Apr 2024
  • 2 Minutes to read
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Cav Movie/audio file input

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Article Summary

Media file input/ CavMovie/Audio file input

Cav media is a proprietary media format designed for instant playback/seek. To convert a video file to the.cav media format the CAV Transcoder is used.
Cav Movie/Audio file input supports playback of video and audio clips as well as looping playback and automatic startup. 

Note!
When working with cue points, the fps of the CAV video must be the same as the project fps.
  •  Media source - Use the Load button to load a clip into Composer. If a clip has been loaded, but the file has been modified, you can use the Reload button to refresh the clip in Composer. Use the Clear button to unload the clip.
     Note! Only cav movie/audio clips can be loaded, no image files.
  • Playback state - Current playback state
  • Commands:
    • Play button - Start playback
    • Rewind button - Rewind to start
    • Pause button - Pause playback
    • Stop button - Stop playback
    • Go to next cue point - Jumps to the next cue point in the CAV file
    • Go to previous cue point - Jumps to the previous cue point (Note, not to the recently passed cue point )
  • Configuration:
    • End-of-file behaviour- Determines the action to perform at the end of the file. The options are:
      •  Loop/repeat playback
      • Hold the last frame
      • Stop.
    • Start playing when loaded - Check this option to automatically start playback when the file is loaded (Default).
  • Cue points:
    Use the CAV transcoder to insert cue points in the .cav media file. It is possible to jump to a specific cue point in the media file via API. Read about "Jump to Cue Point" in the WebAPI section. It is also possible to use Connectors when jumping to cue points. (In the connector, set the name of the cue point to jump to via the "JumpToCuePointName" property, then activate the jump by setting the property "JumpToNamedCuePointCommand").
    • Cue point info - Displays all cue points inserted in the video file
    • Cue point index to jump to - Index cue point to jump to (0 = 1st cue point)
    • Cue point name to jump to - Name of cue point to jump to.
    • Jump to indexed cue point button - Media file will jump to cue point index specified in "Cue point index to jump to"
    • Jump to named cue point button - Media file will jump to cue point name specified in "Cue point named to jump to"
    • Action taken when passing a cue point- What action to perform when current time passes a cue point. The options are:
      • Keep playing
      • Pause playback
      • Stop playback
      • Rewind and play from previous cue point
    • Most recent passed cue point - Last cue point passed
  • Performance and properties:
    • Video track info - Detailed debug information on video track properties 
    • Audio track info - Detailed debug information on audio track properties 
    • Message - Info message
    • Current frame - Current playback frames
    • Current time - Current playback time (Time code) in hours:minutes:seconds:frames.
  • About - Info about the input
  • Resolution:
    • Width -  Video width (pixels)
    • Height - Video height (pixels)

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