| 摘要 |
Efficient context handling in arithmetic coding includes identifying a scan order for a current block and entropy decoding a current entropy coded transform coefficient from the current block. The entropy decoding includes determining, based on the scan order, a first scan order distance between a scan order location corresponding to the current entropy coded transform coefficient and a scan order location corresponding to a first context coefficient, identifying a first context coefficient value from a first location in a context coefficient register, the first location corresponding to the first scan order distance, wherein the context coefficient register is a reduced size context coefficient register, and entropy decoding the current entropy coded transform coefficient based on the first context coefficient value. |
