External Control Commands
Using Serial Commands To Create Playlists
You can create a playlist “on the fly” with the mpgLoadDef and mpgLoadNextDef commands. These two commands are used to define a “default” (i.e. looping) playlist of MPEG files.
To make a playlist:
❏call mpgClearDef to clear the old default playlist.
❏call mpgLoadDef to specify the first file in the list.
❏call mpgLoadNextDef once for each additional file, the order they should play.
❏wait a few seconds for the files to load.
❏call mpgPlay to start playback.
If you want to create a playlist that only plays once, use the mpgLoad and mpgLoadNext commands as follows:
❏call mpgClearDef to clear the old default playlist.
❏call mpgLoad to specify the first file in the list.
❏call mpgLoadNext once for each additional file, the order they should play.
❏wait a few seconds for the files to load.
❏call mpgPlay to start playback.
To interactively insert “one time” files into the default playlist you can use the mpgLoad and mpgLoadNext commands without calling mpgClearDef. A list of files specified with these commands will interrupt the default playlist and play once. When the last file specified ends, the default playlist will resume, from the point where it was interrupted.
The last value passed to mpgSetInitOnOpen effect the type of transition when mpgLoad or mpgLoadDef is called. For seamless transitions, send mpgSetinitOnopen 0 before the load commands.
130
