APPARATUSES AND METHODS FOR PERFORMING JOINT RATE-DISTORTION OPTIMIZATION OF PREDICTION MODE

摘要

Examples of apparatuses and methods for performing a joint RD optimization operation are described herein. A method may include successively encoding a macroblock using a plurality of coding modes. The method may further include determining a corresponding rate-distortion cost to encode the macroblock based on a corresponding coding mode of the plurality of coding modes. The method may further include determining a corresponding estimated rate-distortion cost to encode one or more macroblocks affected by encoding the macroblock using the corresponding coding mode. The method may further include selecting a coding mode of the plurality of coding modes having a lowest corresponding joint rate-distortion cost. The corresponding total rate-distortion cost comprises the corresponding rate-distortion cost to encode the macroblock and the corresponding estimated rate-distortion cost to encode the one or more of the affected macroblocks.

主权项

1. An encoding system, comprising:
an encoder configured to encode a macroblock of a frame, wherein the encoder comprises a mode decision module configured to select a coding mode of a plurality of coding modes used to encode the macroblock based on a corresponding joint rate-distortion cost, wherein the corresponding rate-distortion cost includes a corresponding rate-distortion cost to encode the macroblock and a corresponding estimated cost to encode one or more of the affected macroblocks, wherein the mode decision module is configured to generate the corresponding estimated cost to encode the one or more of the affected macroblocks based, at least in part, on corresponding data.