| 摘要 |
A method for controlling a video stream bit rate while encoding a macroblock of a video stream having pictures comprising the step of using a quantiser_scale_code of the general form: <?in-line-formulae description="In-line Formulae" end="lead"?>quantiser<SUB>-</SUB>scale<SUB>-</SUB>code=ROUND(A+B(D+log<SUB>C</SUB>(MIN{VAR[luma<SUB>-</SUB> 0 ], . . . ,VAR[luma<SUB>-</SUB>n]}))) <?in-line-formulae description="In-line Formulae" end="tail"?> with A being an adjustable gear shift parameter; and B being an adjustable gas pedal parameter; and [luma_n] being a nth luminance block of said macroblock; and D being a constant parameter depending on the encoded picture type.
|
