EBCOT coder truncates the code stream according to the allocated rate, and thus the operation time consumed by the T1 coder is reduced.

• 依据每个码块的估计熵在所有码块的估计熵总和中所占的比例，指导分配每个码块的码率，EBCOT编码器根据分配到的码率实时截断码流和编码通道，减少了T1编码的时间。