ENCODER SYSTEM AND ENCODING METHOD FOR A LOW DELAY VIDEO TRANSPORT SCHEME USING A VIRTUAL ENCODER BUFFER

摘要

One video coding apparatus, it is by using a virtual encoder buffer, and its method transmits a low latency video, is arranged to carry out Bit-Rate Control Algorithm as generation and is necessary information to Bit-Rate Control Algorithm, to remove the postponement of first encoding device buffer area and correspondingly reduce end-to-end delay. It includes data that input unit in a video communication system receives video photograph that one encoder (100), which passes through, according to the quantization parameter encoded video data of application, according to predefined bit rate as a compressed bit stream exports coding rear video data. Some rate controllers (200) include the virtual encoder buffer Video Decoder for storing compressed bit stream output form, control quantization parameter, including based on in the Video Decoder for including the corresponding fullness information of the data amount of stream in encoder buffer. Quantization parameter is information, is used to determine an encoding rate of Video Decoder.