MPEG-4 Standard
Modern mobile communication and personal communication demand audio function developing to multimedia function. In other word, communication supports audio, word, data, graphics, video and suchlike multimedia, making customers communicate vividly, plentifully and effectively. And the key skill is ultra-slow compression of audio & video.
MPEG-4 Target:
- Specializing for below 64Kbps AV (audio & video) encode
- Suitable for mobile communication, personal communication, fixed public communication network and videophone
- Suitable for narrow bandwidth communication and suchlike
- Support content based compression coding, with good compatibility, extensionality and reliability
MPEG-4 Main Functions:
- Content based tool for multimedia data access
- Content based management and program of bitstream
- Natural & man-made image program
- Random access of time field
- Improve coding efficiency
- Multi-channel bitstream program
- Content based gradability
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