Specifications

Chapter 17 Configuring the Podcast Producer Service 289
For more information about pcastaction and its commands, see its man page. You can
also view help information about the commands of pcastaction by entering:
$ pcastaction help command
Applying Quartz Composer Compositions to Movies
Quartz Composer supports the notion of composition protocols and repositories where
compositions are stored.
Quartz Composer supports these types of composition protocols:
 Animation
 Transition
 Effect
Podcast Producer leverages compositions that abide by the Transition and Effect
protocols. These compositions must reside in one of the following repositories:
When specifying a Quartz Composer composition that abides by either the Effect or
Transition protocol, use the composition’s repository identifier. Otherwise, you can pass
the composition’s full file path.
Applying a Quartz Composer Transition
To apply a Quartz Composer transition to a QuickTime movie:
$ pcastaction merge --basedir= basedir --input1= first_input_movie
--input2=
second_input_movie --output= output_movie
--duration= transition_duration
--transition=
composition_repository_identifier
For example, to apply the Copy Machine transition between movies, enter:
$ pcastaction merge --basedir= basedir --input1= first_input_movie
--input2=
second_input_movie --output= output_movie
--duration= transition_duration
--transition="/copy machine"
or
$ pcastaction merge --basedir= basedir --input1= first_input_movie
--input2=
second_input_movie --output= output_movie
--duration= transition_duration
--transition=/copy\ machine
Repository Description
/System/Library/Compositions Contains Apple-supplied compositions.
/Library/Compositions Contains user-created or third party compositions.