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METHOD FOR FAST DETERMINING ENCODING MODE OF MACRO BLOCK IN H.264/AVC
METHOD FOR FAST DETERMINING ENCODING MODE OF MACRO BLOCK IN H.264/AVC
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机译：H.264 / AVC中宏块编码模式的快速确定方法
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摘要
The present invention relates to a fast method for determining the encoding mode of a macroblock in H.264 / AVC to determine the encoding mode of the macroblock at high speed. The rate-distortion cost of the skip mode is smaller than the rate-distortion cost of the inter 16 × 16 mode. In this case, the early skip mode is determined, and if the rate-distortion cost of the skip mode is greater than the rate-distortion cost of the inter 16 × 16 mode, it is determined whether the rate-distortion cost of the inter 16 × 16 mode is the minimum value. If the rate-distortion cost of the inter 16 × 16 mode is the minimum value, the determination of all inter modes is omitted. If the rate-distortion cost of the inter 16 × 16 mode is not the minimum value, the inter 16 × 8 or inter 8 The optimum mode of the sub macroblock in the 8x8 mode is set depending on whether or not the x16 values are the minimum values, and there are two submacroblocks 8x8 in which the optimum mode is set, and the submacroblock 4 in which the optimum mode is set. Of × 4 two In case of determining the negative, when 8x8 is 2 and 4x4 is 2, an intra 4x4 mode decision algorithm is performed by using a 4x4 square mask and interblock correlation, and the rate for the activated modes is determined. -After calculating the distortion cost, determine the optimal mode.If 8x8 is not 2 or 4x4 is not 2, 2 or more sub macroblocks 8x8 or 2 submacroblocks 4x4 The process of determining the prediction mode is omitted according to whether or not it is abnormal, and the optimal mode is determined by calculating the rate-distortion cost for the activated modes.
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机译：本发明涉及一种用于确定H.264 / AVC中的宏块的编码模式以高速确定宏块的编码模式的快速方法。跳过模式的速率失真成本小于16 x 16帧间模式的速率失真成本。在这种情况下，确定早期跳过模式，并且如果跳过模式的率失真成本大于帧间16×16模式的率失真成本，则确定帧间模式的率失真成本是否为0。最小值为16×16模式。如果帧间16×16模式的速率失真成本为最小值，则省略所有帧间模式的确定。如果帧间16×16模式的速率失真成本不是最小值，则帧间16×8或帧间8。根据x16值是否是16x16值，设置8x8模式下子宏块的最佳模式。最小值，并且有两个设置了最佳模式的子宏块8x8和设置了最佳模式的子宏块4。 ×4 2在确定负数的情况下，当8x8为2而4x4为2时，则使用4x4正方形掩码和块间相关性执行帧内4x4模式决策算法，并确定激活模式的速率。 -计算失真代价后，确定最佳模式。如果8x8不是2或4x4不是2，则2个或更多子宏块8x8或2个子宏块4x4根据预测是否异常，省略确定预测模式的过程，然后通过计算激活模式的速率失真成本来确定最佳模式。
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