Dirac - A Video Codec
Created by the British Broadcasting Corporation.
dirac::SubpelRefine Class Reference
The SubpelRefine class takes pixel-accurate motion vectors and refines them to 1/8-pixel accuracy.
More...
#include <me_subpel.h>
Collaboration diagram for dirac::SubpelRefine:
[legend]List of all members.Public Member Functions
Private Member Functions
- SubpelRefine (const SubpelRefine &cpy)
- Private, body-less copy constructor: this class should not be copied.
- SubpelRefine & operator= (const SubpelRefine &rhs)
- Private, body-less assignment=: this class should not be assigned.
- void MatchPic (const PicArray &pic_data, const PicArray &refup_data, MEData &me_data, int ref_id)
- Match a picture from its (upconverted) reference, and record the block mvs.
- void DoBlock (const int xblock, const int yblock, BlockMatcher &my_bmatch, MEData &me_data, const int ref_id)
- Match an individual block.
- MVector GetPred (int xblock, int yblock, const MvArray &mvarray)
- Get a prediction for a block MV from the neighbouring blocks.
Private Attributes
Detailed Description
The SubpelRefine class takes pixel-accurate motion vectors and refines them to 1/8-pixel accuracy. It uses references upconverted by a factor of 2 in each dimension, with the remaining precision gained by doing linear interpolation between values on-the-fly.
Constructor & Destructor Documentation
|
The constructor initialises the encoder parameters. - Parameters:
-
| cp | the parameters used for controlling encoding |
|
dirac::SubpelRefine::~SubpelRefine |
( |
|
) |
[inline] |
|
dirac::SubpelRefine::SubpelRefine |
( |
const SubpelRefine & |
cpy |
) |
[private] |
|
Member Function Documentation
void dirac::SubpelRefine::DoBlock |
( |
const int |
xblock, |
|
|
const int |
yblock, |
|
|
BlockMatcher & |
my_bmatch, |
|
|
MEData & |
me_data, |
|
|
const int |
ref_id |
|
) |
[private] |
|
void dirac::SubpelRefine::DoSubpel |
( |
const FrameBuffer & |
my_buffer, |
|
|
int |
frame_num, |
|
|
MEData & |
me_data |
|
) |
|
|
|
Does the actual sub-pixel refinement. - Parameters:
-
| my_buffer | the buffer of pictures being used |
| frame_num | the frame number on which motion estimation is being performed |
| me_data | the motion vector data, into which the results will be written |
|
MVector dirac::SubpelRefine::GetPred |
( |
int |
xblock, |
|
|
int |
yblock, |
|
|
const MvArray & |
mvarray |
|
) |
[private] |
|
void dirac::SubpelRefine::MatchPic |
( |
const PicArray & |
pic_data, |
|
|
const PicArray & |
refup_data, |
|
|
MEData & |
me_data, |
|
|
int |
ref_id |
|
) |
[private] |
|
Member Data Documentation
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.
HTML documentation generated by Dimitri van Heesch's
excellent Doxygen tool.