L-type partitioning tree

A computing system, comprising:

• control circuitry;
• and
• memory storing one or more programs configured to be executed by the control circuitry, the one or more programs further comprising instructions for:
• receiving video data comprising a current block;
• performing a first partitioning of the current block such that the current block is partitioned into a first rectangular partition and an L-shaped partition, wherein the first rectangular partition has a same aspect ratio as the current block;
• after performing the first partitioning, partitioning the L-shaped partition into a plurality of second rectangular partitions, wherein the plurality of second rectangular partitions includes partitions having two or more different aspect ratios;
• and
• encoding the current block according to the first rectangular partition and the plurality of second rectangular partitions.