Methods and Apparatuses for a High-throughput Video Encoder or Decoder

A video encoding method of determining a block partitioning structure and coding modes by parallel Processing Elements (PEs) in a video encoding system, comprising:

• receiving an input data associated with a current block;
• processing the input data associated with the current block by the parallel PEs to determine the block partitioning structure of the current block and a coding mode for each coding block in the current block, wherein each PE performs tasks associated with a coding mode or one or more candidates of a coding mode in one or more PE runs, comprising:
• accessing a Search Range Memory (SRM) to fetch search range reference samples for the PEs, wherein two or more PEs receive search range reference samples in a broadcasting form;
• testing a plurality of coding modes on partitions and sub-partitions of the current block by the PEs;
• deciding the block partitioning structure for splitting the current block into one or more coding blocks and a corresponding coding mode for each coding block according to rate-distortion costs associated with the coding modes tested by the PEs;
• and
• encoding each coding block in the current block according to the corresponding coding mode.

An apparatus adaptively enabling Geometric Partitioning Mode (GPM) in a video encoding system or video decoding system, the apparatus comprising one or more electronic circuits configured for:

• receiving input data associated with a current block;
• comparing a size of the current block with a threshold size;
• determining a coding mode for the current block, wherein Geometric Partitioning Mode (GPM) is disabled for the current block when the size of the current block is greater than or equal to the threshold size;
• and
• encoding or decoding the current block by the determined coding mode, wherein the current block comprises a first part, a second part and a third part when the coding mode is GPM, the first part of the current block is inter-predicted based on a first set of predictors, the second part of the current block is inter-predicted based on a second set of predictors, and the third part is inter-predicted based on a third set of predictors, wherein the third set of predictors are derived by blending based on the first set of predictors and the second set of predictors.