FOCUS Enhancements 3.2 Manual de usuario descargar pdf (Pagina 144)

External Control Commands

130

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.

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FOCUS Enhancements 3.2 Manual de usuario Pagina 144