Autodesk 64006-051108-9001 User Guide - Page 264
Fallback, Fast Start, Field, Firewall, FireWire, Flat Field Noise, Flattening, FPS frames per second
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Page 264 highlights
256 Glossary Fallback - alternate movie, image or text message displayed to viewers who don't have QuickTime 4 or later installed. Fast Start - progressive-streaming feature of QuickTime that enables movies to be viewed in your browser before the whole movie has been fully downloaded. Field - half of an interlaced video frame consisting of the top or the even image lines. Alternating video fields are drawn every 1/59.94 of a second in NTSC video to create the perceived 29.97 frames per second video. PAL fields are drawn every 1/50 of a second to create 25-fps video. Firewall - network device that may be configured to limit unauthorized entry or use of a private network. Firewalls may create problems with streaming media delivery, especially with formats using protocols such as RTSP. FireWire - Apple's trademarked name for the IEEE 1394 standard. Flat Field Noise - slight differences in areas that should be identical, for example, "blotchiness" in the background behind a title. Although often not objectionable to the human eye, flat field noise degrades compression and may be removed with the Adaptive Noise Reduction filter. Flattening - final pass applied to a QuickTime movie that ensures that the movie data is laid out in a linear fashion and all external references are removed so the file can be played on a Windows computer. It also ensures that the sound is interleaved properly with the video. FPS (frames per second) - measure of the frame rate of video or film. NTSC video is 29.97 fps, PAL video is 25 fps and film is 24 fps. Frame - one single still image among the many that make up a movie. A conventional video frame is made up of two fields. A film frame is a single photographic image, and does not have separate fields.
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