H.264 Prediction
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This page documents the various prediction methods used in H.264 and related formats such as Sorenson Video 3 and RealVideo 4.
4x4 Prediction Modes
Vertical
- H.264: mode 0
- SVQ3: mode 0
- RV40: mode 0
D | T0 T1 T2 T3 --------------------- L0 | T0 T1 T2 T3 L1 | T0 T1 T2 T3 L2 | T0 T1 T2 T3 L3 | T0 T1 T2 T3
Horizontal
- H.264: mode 1
- SVQ3: mode 1
- RV40: mode 1
D | T0 T1 T2 T3 --------------------- L0 | L0 L0 L0 L0 L1 | L1 L1 L1 L1 L2 | L2 L2 L2 L2 L3 | L3 L3 L3 L3
DC
- H.264: mode 2
- SVQ3: mode 2
- RV40: mode 2
D | T0 T1 T2 T3 --------------------- L0 | Z Z Z Z L1 | Z Z Z Z L2 | Z Z Z Z L3 | Z Z Z Z
where Z is computed as:
Z = (T0 + T1 + T2 + T3 + L0 + L1 + L2 + L3 + 4) / 8