Streaming Video
from www.answers.comA one-way video transmission over a data network. It is widely used on the Web as well as private intranets to deliver video on demand or a video broadcast. Unlike movie files (MPG, AVI, etc.) that are played after they are downloaded, streaming video is played within a few seconds of requesting it, and the data is not stored permanently in the computer.
If the streaming video is broadcast live, then it may be called "realtime video." However, technically, realtime means no delays, and there is a built-in delay in streaming video.
It's Already in the Buffer
Watching momentary blips in video are annoying, and the only way to compensate for that over an erratic network such as the Internet is to get some of the video data into the computer before you start watching it. In streaming video, both the client and server cooperate for uninterrupted motion. The client side stores a few seconds of video in a before before it starts sending it to the screen and speakers. Throughout the session, it continues to receive video data ahead of time.
Videoconferencing Is More Demanding
Videoconferencing is more taxing on the network than streaming video. It requires realtime, two-way transmission with sufficient bandwidth for video coming in and going out at the same time without being able to buffer any of it.
posted by LJ Regalado @ 4:48 PM
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