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US 2026/0089346 A1Published application
Device and method for video decoding
AssigneeAmlogic (Shanghai) Co., Ltd.
InventorYuyu Yan
Life of this patent
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Abstract
A device and method for video decoding, wherein in the device for video decoding, an inverse transform circuit and an inverse quantization circuit cyclically share a data storage circuit, thereby eliminating the need to provide an additional storage circuit for the inverse transform circuit specifically for storing predicted residual coefficients for pixel positions in a current transform block to be processed, thereby saving the area of the device for video decoding.
Claims12
A device for video decoding, comprising:
- a data storage circuit, comprising a plurality of memory cells corresponding one-to-one to pixel positions in a current transform block, configured to store prediction residual coefficients for pixel positions in the current transform block, read the stored prediction residual coefficients and send them to an inverse transform circuit;
- and further configured to receive inverse quantization results for pixel positions in the current transform block from an inverse quantization circuit and write the results into the memory cells;
- the inverse transform circuit, configured to perform inverse transform processing on the prediction residual coefficients sent by the data storage circuit to obtain corresponding inverse transform results;
- the inverse quantization circuit, configured to perform inverse quantization processing on the inverse transform results sent by the inverse transform circuit to obtain corresponding inverse quantization results.
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A method for video decoding, comprising:
- using a data storage circuit to store prediction residual coefficients for pixel positions in a current transform block, the data storage circuit comprising a plurality of memory cells corresponding one-to-one to the pixel positions in the current transform block;
- using the data storage circuit to read the stored prediction residual coefficients and send them to an inverse transform circuit;
- using the inverse transform circuit to perform inverse transform processing on the prediction residual coefficients sent by the data storage circuit to obtain corresponding inverse transform results;
- using an inverse quantization circuit to perform inverse quantization processing on the inverse transform results sent by the inverse transform circuit to obtain corresponding inverse quantization results;
- using the data storage circuit to write the inverse quantization results sent by the inverse quantization circuit into the memory cells.
2 more elements
Dependencies are inferred from the claim text.