Encoder, computer device and non-volatile computer-readable storage medium

An encoder, comprising a motion estimation (ME) module, wherein the ME module comprises:

• a first intra prediction unit, configured to perform an intra prediction on a coding tree unit (CTU) to obtain a rough intra-frame coding unit (CU) division result;
• a second intra prediction unit, configured to obtain a precise intra-frame CU division result based on the rough intra-frame CU division result;
• a first inter prediction unit, configured to perform an inter prediction on the CTU to obtain a rough inter-frame CU division result;
• an integer pixel prediction unit, configured to perform an integer pixel prediction based on the rough inter-frame CU division result to obtain an integer pixel prediction result;
• a fractional pixel prediction unit, configured to perform a fractional pixel prediction based on the integer pixel prediction result to obtain a fractional pixel prediction result;
• a second inter prediction unit, configured to perform a mode prediction based on the fractional pixel prediction result to obtain a precise inter-frame CU division result;
• and
• a mode selection unit, configured to obtain a target prediction mode based on the precise intra-frame CU division result and the precise inter-frame CU division result;
• wherein at least two of the first intra prediction unit, the second intra prediction unit, the first inter prediction unit, the integer pixel prediction unit, the fractional pixel prediction unit or the second inter prediction unit perform in parallel.