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MPEG-4



General Information
Overview
MPEG-4 is a standard currently under development for the delivery of interactive multimedia across networks. As such, it is more than a single codec, and will include specifications for audio, video, and interactivity.

The video component of MPEG-4 is very similiar to H.263. It is optimized for delivery of video at Internet data rates. One implementation of MPEG-4 video is included in Microsoft's NetShow.

The rest of the MPEG-4 standard is still being designed. It was recently announced that QuickTime's file format will be used as a starting point.

Pros, Cons & Tips
Pros
  • Good image quality at low datarates

Cons
  • Standard is still being designed


Ideal source material low-motion video
Compression time moderate
Temporal compression? Yes
Special features -
Encoder availability video encoder included in NetShow 3.0
Decoder availability video decoder included in NetShow 3.0
Algorithm Discrete Cosine Transform (DCT) with Motion Prediction
based on H.263
Manufacturer Will be an open standard


If you have any comments or tips & tricks to share about MPEG, please contact us at info@terran-int.com.



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