Rate control quasi-constant quality with the look-ahead

摘要

Rate control quasi-constant quality with the [challenge]-ahead. Device, efficiently encoding multimedia data such as live video stream and the solution means Method. It is estimated before the actual encoding that will be such as 1 second, the encoding complexity of the time interval determined in advance is used. Thus, the actual encoding is performed using a priori estimate of complexity enables, bit assigned for the time interval determined in advance (bit rate), the time previously determined it is possible to be efficiently allocated within the interval. In addition, the complexity that is estimated, can be supplied to devices such as a multiplexer, then the device, the collection of video channels that are multiplexed according to the encoding complexity anticipated for the video channels are it is possible to allocate the available bandwidth in order, then the result, the bandwidth for the collection of video channels that are multiplexed even at relatively constant, the quality of a particular channel remains relatively constant I is possible. [Selection Figure Figure 2