US 12,075,094 B2
Signaling in transform skip mode
Weijia Zhu, San Diego, CA (US); Li Zhang, San Diego, CA (US); and Jizheng Xu, San Diego, CA (US)
Assigned to BYTEDANCE INC., Los Angeles, CA (US)
Filed by Bytedance Inc., Los Angeles, CA (US)
Filed on Oct. 6, 2021, as Appl. No. 17/494,934.
Application 17/494,934 is a continuation of application No. PCT/US2020/030979, filed on May 1, 2020.
Claims priority of application No. PCT/CN2019/085405 (WO), filed on May 2, 2019; and application No. PCT/CN2019/092831 (WO), filed on Jun. 25, 2019.
Prior Publication US 2022/0030280 A1, Jan. 27, 2022
Int. Cl. H04N 19/70 (2014.01); H04N 19/132 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/96 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
determining, during a conversion between a current video block in a video region of a video and a bitstream of the video, whether a block-based delta pulse code modulation mode is enabled or disabled for the current video block, wherein, in the block-based delta pulse code modulation mode, differences between quantized residuals derived with an intra prediction mode of the current video block and predictions of the quantized residuals are included in the bitstream; and
performing the conversion based on the determining,
wherein a first syntax element indicating whether a transform skip mode is applied to a transform block of the current video block is conditionally included in the bitstream based on whether the block-based delta pulse code modulation mode is enabled or disabled for the current video block, and wherein, in the transform skip mode, a transform is skipped for a prediction residual; and
wherein the transform skip mode is inferred to be applied in response to determining that the block-based delta pulse code modulation mode is enabled.