A quick selecting method of the encode mode of image pixel block for the encoder
An image pixel and mode selection technology, applied in the field of digital video codec, can solve redundant problems, achieve the effect of improving encoding speed and eliminating redundant calculations
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Embodiment 1
[0021] Referring to Fig. 3, the fast selection method for the image pixel block encoding mode of the encoder of the present invention first executes step S10, namely setting the range of image pixel block (i.e. macroblock) encoding mode selection, set in this embodiment In the given selection range, at least include intra-frame coding mode, inter-frame coding mode and skip mode, but not limited to this embodiment, those skilled in the art can set different selection ranges according to actual needs, in This will not give examples one by one. It should be noted that the intra-frame coding mode may include 13 types of sub-coding modes, as shown in Table 1 below:
[0022] Table I:
[0023] model
Explanation
Intra16×16_D
Intra 16×16 DC mode
Intra16×16_H
Intra 16×16 horizontal mode
Intra16×16_V
Intra 16×16 vertical mode
Intra16×16_P
Intra 16×16 flat mode
Intra4×4_D
Intra 4×4 DC mode
Intra_4×4_H
Intra ...
Embodiment 2
[0035] Please refer to FIG. 4 , the method for quickly selecting the encoding mode of the image pixel block of the encoder in this embodiment is different from the method for quickly selecting the encoding mode of the image pixel block of the encoder in Embodiment 1 only in that the After the step of setting the range of image pixel block (i.e. macroblock) coding mode selection, step S17 is executed, that is, a step of judging whether it is necessary to calculate the mode selection discriminant value is performed, in more detail, that is, in the current pixel block to be coded In the image where it is located, judge whether the encoding mode corresponding to one of the pixel blocks on the left, top, upper left and upper right of the pixel block to be encoded is a skip mode, if so, then calculate the mode selection discriminant value (i.e. execute step S11 ), otherwise the encoder selects the inter-frame encoding mode to encode the pixel block to be encoded (that is, executes st...
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Abstract
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Application Information
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