CPC H04N 19/196 (2014.11) [H04N 19/105 (2014.11); H04N 19/132 (2014.11); H04N 19/147 (2014.11); H04N 19/172 (2014.11)] | 20 Claims |
1. A method of encoding a video bitstream using at least one processor, the method comprising:
setting a first flag indicating whether a constant picture size is used in a coded video sequence including a current picture;
based on the first flag indicating that the constant picture size is used, encoding the current picture without performing reference picture resampling;
based on the first flag indicating that the constant picture size is not used, setting a second flag indicating whether a conformance window size is signaled; and
based on the second flag indicating that the conformance window size is signaled:
setting the conformance window size, and
signaling a resampling ratio between the current picture and a reference picture based on the conformance window size.
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