Block Partition Size |
16x16 |
16x16 |
16x16 |
Intra Prediction |
5 modes for 16x16, 8x8 and 4x4 |
4 modes for 16x16, 9 modes for 4x4 |
4 modes for 16x16, 10 modes for 4x4 |
Inter Prediction |
Motion Vector Prediction |
4 neighboring blocks |
3 neighboring blocks |
8 neighboring blocks |
Subpel Accuracy |
1/2, 1/4 |
1/2, 1/4 |
1/2, 1/4, 1/8 |
Use P/B-frame |
Use |
Use |
Use |
Partition Size |
16x16, 16x8, 8x16, 8x8, 4x4 |
16x16, 16x8, 8x16, 8x8, 4x4 |
16x16, 16x8, 8x16, 8x8, 4x4 |
Number of Reference Frames |
Up to 8 |
Up to 16 |
Up to 3 |
Transform |
Integer DCT 16x16, 8x8, 4x4 |
Integer DCT 4x4 |
Integer DCT 4x4 |
Entropy Coding |
Context-based Adaptive BAC |
Context-based Adaptive VLC |
Context-based Adaptive BAC |
Loop Filter |
Deblocking filter |
Deblocking filter |
Deblocking filter |