Signaling of adaptive picture size in video bitstream
AssigneeTencent America LLC
InventorsStephan Wenger, Byeongdoo Choi, Shan Liu
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Abstract
A method of decoding a coded picture of a coded video sequence is performed by at least one processor and the method includes decoding, from a parameter set, a plurality of candidate decoded resolutions, selecting, through an index coded in a transient header structure applicable to a group of samples, a candidate decoded resolution among the plurality of candidate decoded resolutions, resampling a sample of the group of samples based on an output resolution and the selected candidate decoded resolution, and enabling prediction using the resampled sample.
Claims20
A method of decoding a coded picture of a coded video sequence, the method being performed by at least one processor and the method comprising:
- resampling a sample associated with the coded video sequence based on an output resolution and a candidate decoded resolution corresponding to an index coded in a transient header structure applicable to a group of samples;
- and
- enabling prediction using the resampled sample based on meta-information obtained during decoding of previous parts of the coded picture or coded video sequence and previously reconstructed and loop-filtered sample values.
An apparatus for decoding a coded picture of a coded video sequence, the apparatus comprising:
- at least one memory configured to store computer program code;
- and
- at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code comprising:
- resampling code configured to cause the at least one processor to resample a sample associated with the coded video based on an output resolution and a candidate decoded resolution corresponding to an index coded in a transient header structure applicable to a group of samples;
- and
- enabling code configured to cause the at least one processor to enable prediction using the resampled sample based on meta-information obtained during decoding of previous parts of the coded picture or coded video sequence and previously reconstructed and loop-filtered sample values.
A non-transitory computer-readable storage medium storing a program for decoding a coded picture of a coded video sequence, the program comprising instructions that cause a processor to:
- resample a sample associated with the coded video sequence based on an output resolution and a candidate decoded resolution corresponding to an index coded in a transient header structure applicable to a group of samples;
- and
- enable prediction using the resampled sample based on meta-information obtained during decoding of previous parts of the coded picture or coded video sequence and previously reconstructed and loop-filtered sample values.
Dependencies are inferred from the claim text.