H.264 Prediction: Difference between revisions
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m (→Vertical: revised convention) |
m (→Horizontal: revised convention) |
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Line 22: | Line 22: | ||
* RV40: 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 === | === DC === |
Revision as of 16:38, 29 July 2007
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
A | B C D E ---------------- F | Z Z Z Z G | Z Z Z Z H | Z Z Z Z I | Z Z Z Z
where Z is computed as:
Z = (B + C + D + E + F + G + H + I + 4) / 8