Autodesk 64006-051108-9001 User Guide - Page 262
QuickTime, Real 10 and Windows Media files., Data Rate Spikes
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254 Glossary Data Rate Spikes - short sections of a movie that have significantly higher data rates than the rest of the movie. If not properly managed, spikes may cause dropped frames or other problems. Decode - in multimedia, refers to decompressing an encoded file so that it may be displayed. Codecs do this decoding while the video/audio is played. De-interlace - to remove the interlacing artifacts caused by the two-fields-per-frame nature of conventional video. Delta Frames - frames that contain only the changes from the previous frame. Delta frames are created by codecs that use temporal compression. Delta frames are also called difference frames. Dial-up Modem - see Modem. Difference Frames - see Delta Frames. DirectShow (formerly known as ActiveMovie) - the successor to Microsoft's Video for Windows architecture. It is built on top of the DirectX architecture and supports playback of multimedia from the local hard drive, the Web, CD-ROM and DVD-ROM. Display Text - EventStream event that enables you to add subtitles or closed captioning to your QuickTime, Real 10 and Windows Media files. Download - to copy a file from a server or network to your computer. DVD - DVD (Digital Versatile Disc) is an optical disc technology. The digital versatile disc (DVD) holds 4.7 gigabyte of information on one of its two sides, or enough for a 133-minute movie. With two layers on each of its two sides, it will hold up to 17 gigabytes of video, audio, or other information.
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