Tree-type coding for video coding

A method of decoding video data, the method comprising:

• comparing a value of a dimension of a current block of video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value, the neighboring block being positioned adjacent to the current block;
• determining a respective context for one or more of a split flag syntax element, a split direction syntax element, or a split mode syntax element for the current block of video data based on the relative dimension value;
• decoding one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data using the determined respective contexts;
• and
• decoding the current block of video data in accordance with one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data.

An apparatus configured to decode video data, the apparatus comprising:

• a memory configured to store a current block of video data;
• and
• one or more processors in communication with the memory, the one or more processors configured to:
• compare a value of a dimension of a current block of video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value, the neighboring block being positioned adjacent to the current block;
• determine a respective context for one or more of a split flag syntax element, a split direction syntax element, or a split mode syntax element for the current block of video data based on the relative dimension value;
• decode one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data using the determined respective contexts;
• and
• decode the current block of video data in accordance with one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data.

An apparatus configured to decode video data, the apparatus comprising:

• means for comparing a value of a dimension of a current block of video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value, the neighboring block being positioned adjacent to the current block;
• means for determining a respective context for one or more of a split flag syntax element, a split direction syntax element, or a split mode syntax element for the current block of video data based on the relative dimension value;
• means for decoding one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data using the determined respective contexts;
• and
• means for decoding the current block of video data in accordance with one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data.

A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors of a device configured to decode video data to:

• compare a value of a dimension of a current block of video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value, the neighboring block being positioned adjacent to the current block;
• determine a respective context for one or more of a split flag syntax element, a split direction syntax element, or a split mode syntax element for the current block of video data based on the relative dimension value;
• decode one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data using the determined respective contexts;
• and
• decode the current block of video data in accordance with one or more of the split flag syntax element, the split direction syntax element, or the split mode syntax element for the current block of video data.