Streaming media technology
There are currently three mainstream streaming technologies, RealNetworks RealMedia, Microsoft WindowsMediaTechnology and Apple's QuickTime. All three technologies have their own patented algorithms, patent file formats and even proprietary transmission control protocols.
QuickTime is a very old media technology integration and de facto industry standard for digital media.
QuickTime is the earliest video industry standard, released in 1999 QuickTime4.0 version began to support true streaming.
QuickTime uses SorensonVideo technology for video compression and QDesignMusic technology for audio. QuickTime's biggest feature is its own inclusive nature, making it a complete multimedia platform, so based on QuickTime can use a variety of media technologies to co-create media content.
2.RealMedia from RealNetworks
ScalableVideoTechnology Scalable video technology automatically adjusts the playback quality of your media based on your computer's speed and connection quality.
Two-passEncoding Two-pass encoding improves the quality of the encoding by pre-scanning the media content and then encoding based on the results of the scan. In particular, SureStream adaptive streaming technology provides a streaming stream that automatically adapts to different bandwidth users with one encoded stream.
The RealMedia audio section uses RealAudio, the encoding of the transmission performance is very prominent in low bandwidth environment.
Real streaming media technology requires 3 software support, RealPlayer player, RealProducer editing, RealServer server.
WindowsMediaVideo uses mpeg-4 video compression technology, audio using Windows MediaAudio technology. The key core of WindowsMedia is MMS agreement and ASF data format, MMS is used for network transmission control, ASF is used for packing of media content and coding scheme.
WindowsMedia streaming media technology requires three software support, Windows Media Player, Windows Media Tools and Windows Media Server.