User`s manual

Alcorn McBride Digital Video Machine DVM-7400 User’s Manual Rev 1.5
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Play
Description: This command causes the DVM to play the file specified with the Select File
command. If a clip is stilled or paused, this command resumes playback. If this
command is issued while a Playlist is being played, the DVM will advance to the next
Playlist entry. This command sends a response when it is executed, and another
when the playback is complete.
Command bytes: PL
Message Response: R
Comments: If the video material ends with a non-black screen, that picture will be displayed until
another video file is played.
Example: Select File 22: 22SE
Play Currently Selected File: PL
Play File
Description: This command is the same as the Play command, except that the file number or
name is included in the command. This means that no prior Select File command is
required.
Command bytes: nnnnnPL or “<filename>”PL
Parameters: nnnnn is the ASCII file number between 0-99999.
<filename> is an ASCII file name surrounded by quotation marks.
Message Response: R
Comments: If the video material ends with a non-black screen, that picture will be displayed until
another video file is played.
Examples: Play file 215: 215PL
Play file 4: 4PL or “vid00004.mpg”PL
Play file alcorn.mpg: “alcorn.mpg”PL
Loop Play
Description: This command causes the DVM to play the file specified by the Select File command
and then seamlessly loops back to the beginning. If the file is a Playlist, all of the clips
in the Playlist will be played and then the entire Playlist will be restarted.
Command bytes: LP
Message Response: R
Example: Select File 35: 35SE
Loop Currently Selected File: LP