Patent ID: 11863787
Assignee: QUALCOMM INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of decoding video data, the method comprising:
receiving, in a bitstream, a syntax element as part of a sequence parameter set syntax structure for a picture, wherein the syntax element indicates a maximum block size for both a transform skip mode and a block-based delta pulse code modulation (BDPCM) mode;
determining a maximum block size for the BDPCM mode based on the syntax element, wherein the maximum block size is limited to a range of sizes from 4 to 32;
determining the maximum block size for the transform skip mode based on the syntax element; and
based on the determined maximum block size for the transform skip mode, determining that a BDPCM mode flag is present in the bitstream for the first block in response to a size for the first block being less than or equal to the maximum block size for the BDPCM mode and decoding the BDPCM mode flag from the bitstream;
determining that a first block of the picture is coded using the BDPCM mode based on the BDPCM mode flag;
decoding the first block based on the determined maximum block size;
determining that a second block of the picture is coded using the transform skip mode;
decoding the second block based on the determined maximum block size; and
outputting a decoded version of the picture.