Methods and devices for signaling and using neural network-based filters

A method of video encoding performed at a computing system having memory and one or more processors, the method comprising:

• receiving video data comprising a plurality of blocks;
• determining whether a neural network-based filter is to be applied to a block of the plurality of blocks;
• when the neural network-based filter is to be applied to the block, applying the neural network-based filter to the block;
• and
• not applying the neural network-based filter to the block when the neural network-based filter is not to be applied to the block.

A non-transitory computer-readable storage medium storing a video bitstream that is generated by a video encoding method, the video bitstream comprising:

• coded information for a plurality of blocks;
• and
• a syntax element indicating whether a neural network-based filter is to be applied to a block of the plurality of blocks;
• wherein the video encoding method comprises:
• determining whether a neural network-based filter is to be applied to the block;
• when the neural network-based filter is to be applied to the block, applying the neural network-based filter to the block;
• and
• not applying the neural network-based filter to the block when the neural network-based filter is not to be applied to the block.