CONTENT ADAPTIVE HIGH PRECISION MACROBLOCK RATE CONTROL

摘要

Methods and systems may include an apparatus having hardware logic to allocate a set of macroblock bit budgets for a bitstream associated with a video signal. The hardware logic can also control a frame size of the bitstream based on the set of macroblock bit budgets in a single pass encode configuration. In one example, the hardware logic adjusts one or more quantization parameters of the bitstream according to the set of macroblock bit budgets.

主权项

1. A computer implemented method comprising:
determining a macroblock complexity for a bitstream associated with a video signal based on at least one of a macroblock pixel variance, a total high frequency magnitude, a residual error, and a previously coded number of bits; determining a region of importance for the bitstream based on at least one of a static location, a content of the bitstream, and an external dynamic input; allocating a set of macroblock bit budgets for the bitstream based on the macroblock complexity and the region of importance; generating a macroblock size estimate to determine a running bit sum for the bitstream; conducting a comparison between the running bit sum and the set of macroblock bit budgets; selecting an update policy based on the comparison; and controlling a frame size of the bitstream based on the selected update policy in a single pass encode configuration.