Method and apparatus for video coding

An apparatus for video decoding, comprising:

• processing circuitry configured to:
• determine, from a coded video bitstream, a portion of a block is subject to a zero-out operation based on a threshold number of samples being less than a number of samples in one of a height dimension or a width dimension of the block;
• determine whether a mixture of a lossless coding mode and one or more lossy coding modes is allowed in the coded video bitstream;
• and
• reconstruct the block based on the one or more lossy coding modes in response to (i) the mixture of the lossless coding mode and the one or more lossy coding modes being allowed in the coded video bitstream and (ii) the portion of the block being subject to the zero-out operation.

A non-transitory computer-readable medium storing instructions which, when executed by a computer, cause the computer to perform:

• determining, from a coded video bitstream, a portion of a block is subject to a zero-out operation based on a threshold number of samples being less than a number of samples in one of a height dimension or a width dimension of the block;
• determining whether a mixture of a lossless coding mode and one or more lossy coding modes is allowed in the coded video bitstream;
• and
• reconstructing the block based on the one or more lossy coding modes in response to (i) the mixture of the lossless coding mode and the one or more lossy coding modes being allowed in the coded video bitstream and (ii) the portion of the block being subject to the zero-out operation.