REUSE OF INDEX OF HUFFMAN CODEBOOK FOR CODING VECTORS

摘要

In general, techniques are described for indicating reusability of an index that determines a Huffman codebook used to code data associated with a vector in a spherical harmonics domain. The bitstream may comprise an indicator for whether to reuse, from a previous frame, at least one syntax element indicative of the index. The memory may be configured to store the bitstream.

主权项

1. A device for processing a bitstream, the device comprising:
one or more processors configured to:
obtain the bitstream, the bitstream comprising a compressed version of a spatial component of a sound field, the spatial component of the sound field being represented by a vector in a spherical harmonics domain, wherein a value of a syntax element for a current frame is indicative of an index that determines a particular Huffman codebook, the bitstream further including an indicator,
the indicator having a particular value indicating the bitstream does not include the value of the syntax element for the current frame and the value of the syntax element for the current frame is equal to a value of the syntax element for a previous frame;use the particular Huffman codebook to code data associated with the vector; and a memory coupled to the one or more processors, the memory configured to store the bitstream.