| CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11)] | 20 Claims |
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1. A method of video decoding performed at a computing system having memory and one or more processors, the method comprising:
receiving a video bitstream comprising a plurality of coding blocks;
identifying, based on a first indicator in the video bitstream, a coding region that comprises two or more blocks of the plurality of coding blocks, wherein at least one block in the coding region is encoded in an intra prediction mode and at least one block in the coding region is encoded in a non-intra prediction mode;
for a last block in the coding region:
when all preceding blocks in the coding region are encoded in the intra prediction mode, inferring a prediction mode of the last block as being an inter prediction mode without receiving an inter prediction mode indicator for the last block; and
when all preceding blocks in the coding region are encoded in non-intra prediction modes, inferring the prediction mode of the last block in the coding region as being the intra prediction mode without receiving an intra prediction mode indicator for the last block; and
reconstructing the last block using the inferred prediction mode.
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