A rate control algorithm for the H.264 encoder
Simone Milani, Luca Celetto, Gian Antonio Mian · 2003
intended for video transmission in all areas where bandwidth or storage capacity is limited (e.g. video telephony or video conferencing over mobile channels and devices). Since its main applications concern video communication over time-varying bandwidth channels, the bit rate has to be controlled with scalable algorithms that can be implemented on low resource devices. The paper describes a rate control algorithm that needs reduced memory area and complexity compared to other ones. The number of coded bits for each frame can be accurately predicted through the percentage of null quantized coefficients. It is possible to reduce the hardware requirements of the original technique through a parametric model: in this way coefficient statistics storage is not needed and the whole rate control algorithm becomes more suitable for low-resource devices. I.