P

PAL
Analog composite color television standard, with a rate of 25 frames per second, and 50 fields per second. Much of Europe, Australia, and other parts of the world use PAL.
pan-scan
DVD-Video display format in which a 16 × 9 video is cropped for display in a 4 × 3 window, using parameters defined by the video author.
parser filter
A filter that pulls information from a disk by using the asynchronous file reader filter, or from the Internet by using the URL moniker filter.
periodic advise
A regular series of advise calls.
pixel doubling
Scaling an image by a factor of two.
plug-in distributor (PID)
An object that exposes a control interface and implements it by enumerating the filters in the filter graph, finding which filters expose the same interface, and communicating directly with those filters.
preroll
The queuing of data in advance of the desired playback time or position.
preroll time
The time prior to the start position at which nonrandom access devices should start rolling.
presentation time
The stream time at which the packets of data that a filter receives should be presented downstream or rendered.
preview section
The portion of the filter graph from the capture filter's preview pin downstream to and including the video renderer.
primary surface
The area in memory containing the image being displayed on the monitor. In Microsoft® DirectX®, the primary surface is represented by the primary DirectDrawSurface object.