# Dirac - A Video Codec

Created by the British Broadcasting Corporation.

me_subpel.h
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37
38#ifndef _ME_SUBPEL_H_
39#define _ME_SUBPEL_H_
40
41#include <libdirac_common/common.h>
42#include <libdirac_common/motion.h>
43#include <libdirac_motionest/block_match.h>
44 namespace dirac
45{
46
47 class EncQueue;
48 class MvData;
49 class PicArray;
50
52
58 class SubpelRefine
59 {
60 public:
62
66 SubpelRefine(const EncoderParams& encp);
67
69 ~SubpelRefine(){}
70
72
77 void DoSubpel( EncQueue& my_buffer , int pic_num );
78
79 private:
81 SubpelRefine( const SubpelRefine& cpy );
82
84 SubpelRefine& operator=( const SubpelRefine& rhs );
85
87 void MatchPic(const PicArray& pic_data , const PicArray& refup_data , MEData& me_data ,
88 int ref_id);
89
91 void DoBlock( const int xblock , const int yblock ,
92 BlockMatcher& my_bmatch, MEData& me_data , const int ref_id );
93
95 MVector GetPred( int xblock , int yblock , const MvArray& mvarray );
96
97 //member variables
98
100 const EncoderParams& m_encparams;
101
103 const PicturePredParams* m_predparams;
104
106 CandidateList m_cand_list;
107
109 OneDArray<ImageCoords> m_nshift;
110
111 };
112
113} // namespace dirac
114
115#endif
common.h
motion.h
block_match.h
dirac
Definition of class SequenceHeaderByteIO.
Definition: accessunit_byteio.h:52
dirac::CandidateList
std::vector< std::vector< MVector > > CandidateList
Definition: block_match.h:48
dirac::OneDArray
A template class for one-dimensional arrays.
Definition: arrays.h:90
dirac::TwoDArray
A template class for two-dimensional arrays.
Definition: arrays.h:285
dirac::PicArray
A class for picture component data.
Definition: common.h:719
dirac::PicturePredParams
Structure to hold motion parameters when motion comp is used.
Definition: common.h:968
dirac::EncoderParams
Parameters for the encoding process.
Definition: common.h:1280
dirac::MotionVector< int >
dirac::MEData
Class for all the motion estimation data.
Definition: motion.h:314
dirac::EncQueue
Holds pictures both for reference and to overcome reordering delay.
Definition: enc_queue.h:59
dirac::BlockMatcher
Class to do block matching.
Definition: block_match.h:105
dirac::SubpelRefine
The SubpelRefine class takes pixel-accurate motion vectors and refines them to 1/8-pixel accuracy.
Definition: me_subpel.h:59
dirac::SubpelRefine::m_cand_list
CandidateList m_cand_list
The list of candidate vectors being tested.
Definition: me_subpel.h:106
dirac::SubpelRefine::DoSubpel
void DoSubpel(EncQueue &my_buffer, int pic_num)
Does the actual sub-pixel refinement.
dirac::SubpelRefine::SubpelRefine
SubpelRefine(const SubpelRefine &cpy)
Private, body-less copy constructor: this class should not be copied.
dirac::SubpelRefine::SubpelRefine
SubpelRefine(const EncoderParams &encp)
Constructor.
dirac::SubpelRefine::m_nshift
OneDArray< ImageCoords > m_nshift
The relative coords of the set of neighbours used to generate MV predictions.
Definition: me_subpel.h:109
dirac::SubpelRefine::m_encparams
const EncoderParams & m_encparams
Local reference to the encoder params.
Definition: me_subpel.h:100
dirac::SubpelRefine::operator=
SubpelRefine & operator=(const SubpelRefine &rhs)
Private, body-less assignment=: this class should not be assigned.
dirac::SubpelRefine::DoBlock
void DoBlock(const int xblock, const int yblock, BlockMatcher &my_bmatch, MEData &me_data, const int ref_id)
Match an individual block.
dirac::SubpelRefine::GetPred
MVector GetPred(int xblock, int yblock, const MvArray &mvarray)
Get a prediction for a block MV from the neighbouring blocks.
dirac::SubpelRefine::MatchPic
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.
dirac::SubpelRefine::~SubpelRefine
~SubpelRefine()
Destructor.
Definition: me_subpel.h:69
dirac::SubpelRefine::m_predparams
const PicturePredParams * m_predparams
A local pointer to the encoder params.
Definition: me_subpel.h:103

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