Dirac - A Video Codec

Created by the British Broadcasting Corporation.


Public Member Functions | Private Member Functions

dirac::BlockDiffHalfPel Class Reference

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

#include <me_utils.h>

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List of all members.

Public Member Functions

Private Member Functions


Constructor & Destructor Documentation

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

Member Function Documentation

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

Do the difference, returning SAD

Parameters:
dparamsblock parameters
mvthe motion vector being used

Implements dirac::BlockDiffUp.

void dirac::BlockDiffHalfPel::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:
dparamsblock parameters
mvthe motion vector being used
mvcostthe (prediction) cost of the motion vector mv
lambdathe weighting to be given to mvcost
best_coststhe best Lagrangian costs obtained yet
best_mvthe MV giving the best Lagrangian costs so far

Implements dirac::BlockDiffUp.

BlockDiffHalfPel& dirac::BlockDiffHalfPel::operator= ( const BlockDiffHalfPel 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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