pA video encoder generates a Network Abstraction Layer (NAL) unit that contains a plurality of encoded picture partitions of the video data. The video encoder generates a bitstream that includes a variable length value that represents an entropy encoded first syntax element a variable length value that represents an entropy encoded second syntax element and fixed length values that represent offset syntax elements. Lengths of each of the offset syntax elements are determinable based on the first syntax element. A video decoder uses the first syntax element the second syntax element and the offset syntax elements when decoding the encoded picture partitions./p
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