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Cheng Chen authored
Signal one bit to indicate whether current superblock reuses filter level of previous superblock. Try filtering and compute sse using previous filter level and search the best possible filter level. If their diff is less than predefined threshold, current superblock reuses previous level. Otherwise, signal the best filter level. Change-Id: Ibf125860883b774ef2464b62bb8b799b48258c64
c7855b1a