Abstract:

As one of the important key technologies for video communications, rate control is used to adapt video streams to meet the constrained bandwidth, which can affect the stability of video coding bit rate and achieve a certain video quality. The rate control problem is described and the classification for rate control algorithms is proposed. Then based on the application objective, the rate control algorithms for H.264/AVC are introduced concretely. Finally, the future research directions of rate control are stated in detail from the two aspects of the suitable standard and the application objective, respectively.