Research Article
Low-Complexity Hierarchical Mode Decision Algorithms Targeting VLSI Architecture Design for the H.264/AVC Video Encoder
Algorithm 2
Algorithm used to define the sub-partition size.
| If |HPB-VPB| ≤ 40 Then | | best_INTER_mode = SMB8×8 | | // (sub-macroblock is not divided into sub-partitions) | | Else If HPB−VPB > 40 Then | | If VSB1 > 20 OR VSB2 > 20 Then | | best_INTER_mode = SMB4×4 | | // (sub-MB is divided into four 4×4 sub-partitions) | | Else | | best_INTER_mode = SMB8×4 | | // (sub-MB is divided into two 8x4 sub-partitions) | | Else If VPB − HPB > 40 Then | | If HSB1 > 20 OR HSB2 > 20 Then | | best_INTER_mode = SMB4×4 | | // (sub-MB is divided into four 4×4 sub-partitions) | | Else | | best_INTER_mode = SMB4×8 | | // (sub-MB is divided into two 4×8 blocks) |
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