| 摘要 |
The present disclosure is directed to use of dynamically assignable deblocking filters as part of video coding/decoding operations. An encoder and a decoder each may store common codebooks that define a variety of deblocking filters that may be applied to recovered video data. During run time coding, an encoder calculates characteristics of an ideal deblocking filter to be applied to a mcblock being coded, one that would minimize coding errors when the mcblock would be recovered at decode. Once the characteristics of the ideal filter are identified, the encoder may search its local codebook to find stored parameter data that best matches parameters of the ideal filter. The encoder may code the reference block and transmit both the coded block and an identifier of the best matching filter to the decoder. The decoder may apply the deblocking filter to mcblock data when the coded block is decoded. If the deblocking filter is part of a prediction loop, the encoder also may apply the deblocking filter to coded mcblock data of reference frames prior to storing the decoded reference frame data in a reference picture cache.
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