Dirac - A Video Codec

Created by the British Broadcasting Corporation.


dirac::BlockDiffEighthPel Class Reference

A class for doing differences with eighth-pixel accurate vectors.

#include <me_utils.h>

Inheritance diagram for dirac::BlockDiffEighthPel:
dirac::BlockDiffUp dirac::BlockDiff

List of all members.

Public Member Functions

Private Member Functions


Constructor & Destructor Documentation

dirac::BlockDiffEighthPel::BlockDiffEighthPel ( const PicArray ref,
const PicArray pic 
)
dirac::BlockDiffEighthPel::~BlockDiffEighthPel (  )  [inline]
dirac::BlockDiffEighthPel::BlockDiffEighthPel ( const BlockDiffEighthPel cpy  )  [private]

Member Function Documentation

void dirac::BlockDiffEighthPel::Diff ( const BlockDiffParams dparams,
const MVector mv,
const float  mvcost,
const float  lambda,
MvCostData best_costs,
MVector best_mv 
) [virtual]

Do the actual difference, overwriting the best MV so far if appropriate, and bailing out if we do worse

Parameters:
dparams block parameters
mv the motion vector being used
mvcost the (prediction) cost of the motion vector mv
lambda the weighting to be given to mvcost
best_costs the best Lagrangian costs obtained yet
best_mv the MV giving the best Lagrangian costs so far

Implements dirac::BlockDiffUp.

float dirac::BlockDiffEighthPel::Diff ( const BlockDiffParams dparams,
const MVector mv 
) [virtual]

Do the difference, returning SAD

Parameters:
dparams block parameters
mv the motion vector being used

Implements dirac::BlockDiffUp.

BlockDiffEighthPel& dirac::BlockDiffEighthPel::operator= ( const BlockDiffEighthPel rhs  )  [private]

The documentation for this class was generated from the following file:

© 2004 British Broadcasting Corporation. Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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