Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof
A method for processing a 2N×2N block under intra-prediction includes: utilizing an intra-prediction unit for performing intra-prediction upon the 2N×2N block by utilizing a plurality of prediction modes, and accordingly generating a plurality of intra-prediction results respectively corresponding to the prediction modes, wherein N is a positive integer greater than four, and a number of the prediction modes is greater than four; and determining a target intra-prediction result from the intra-prediction results.
1. A method for processing a 2N×2N block under intra-prediction, comprising:
determining macroblock type information and coded block pattern (cbp) information corresponding to the 2N×2N block, wherein N is a positive integer greater than four; and
utilizing a coding unit for generating a codeword with only the macroblock type information and the cbp information coded therein.
2. The method of claim 1 , wherein generating the codeword comprises:
generating the codeword by performing variable length coding upon only the macroblock type information and the cbp information.
3. A method for processing a 2N×2N block under intra-prediction mode, comprising:
utilizing a checking unit for checking if a coded block pattern (cbp) corresponding to the 2N×2N block is equal to zero, wherein N is a positive integer greater than four; and
when the cbp is equal to zero, not transmitting information of a delta quantization parameter (delta QP).
4. A method for processing a block under intra-prediction, comprising:
checking if the block is a 2N×2N block, wherein N is a positive integer greater than four; and
when the block is the 2N×2N block, utilizing a de-blocking filtering unit for performing a de-blocking filtering operation only upon 2N×2N block edges of the 2N×2N block.
5. A processing circuit for processing a 2N×2N block under intra-prediction, comprising:
a macroblock type determining unit, for determining macroblock type information corresponding to the 2N×2N block, wherein N is a positive integer greater than four;
a coded block pattern (cbp) determining unit, for determining cbp information corresponding to the 2N×2N block; and
a coding unit, coupled to the macroblock type determining unit and the cbp determining unit, for generating a codeword with only the macroblock type information and the cbp information coded therein.
6. The processing circuit of claim 5 , wherein the coding unit generates the codeword by performing variable length coding upon only the macroblock type information and the cbp information.
7. A processing circuit for processing a 2N×2N block under intra-prediction, comprising:
a checking unit, for checking if a coded block pattern (cbp) corresponding to the 2N×2N block is equal to zero, wherein N is a positive integer greater than four; and
a control unit, coupled to the checking unit, wherein the control unit does not transmit information of a delta quantization parameter (delta QP) when the cbp is equal to zero.
8. A processing circuit for processing a block under intra-prediction, comprising:
a checking unit, for checking if the block is a 2N×2N block, wherein N is a positive integer greater than four; and
a de-blocking filtering unit, coupled to the checking unit, wherein when the block is the 2N×2N block, the de-blocking filtering unit performs a de-blocking filtering operation only upon 2N×2N block edges of the 2N×2N block.