me_subpel.h
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- /* ***** BEGIN LICENSE BLOCK *****
- *
- * $Id: me_subpel.h,v 1.2 2005/01/30 05:11:42 gabest Exp $ $Name: $
- *
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
- * the specific language governing rights and limitations under the License.
- *
- * The Original Code is BBC Research and Development code.
- *
- * The Initial Developer of the Original Code is the British Broadcasting
- * Corporation.
- * Portions created by the Initial Developer are Copyright (C) 2004.
- * All Rights Reserved.
- *
- * Contributor(s): Thomas Davies (Original Author)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
- * Public License Version 2.1 (the "LGPL"), in which case the provisions of
- * the GPL or the LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the either
- * the GPL or LGPL and not to allow others to use your version of this file
- * under the MPL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by the GPL
- * or LGPL. If you do not delete the provisions above, a recipient may use
- * your version of this file under the terms of any one of the MPL, the GPL
- * or the LGPL.
- * ***** END LICENSE BLOCK ***** */
- #ifndef _ME_SUBPEL_H_
- #define _ME_SUBPEL_H_
- #include <libdirac_common/common.h>
- #include <libdirac_common/motion.h>
- #include <libdirac_motionest/block_match.h>
- namespace dirac
- {
- class FrameBuffer;
- class MvData;
- class PicArray;
-
- //! The SubpelRefine class takes pixel-accurate motion vectors and refines them to 1/8-pixel accuracy
- /*!
- 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.
- */
- class SubpelRefine
- {
-
- public:
- //! Constructor
- /*!
- The constructor initialises the encoder parameters.
- param cp the parameters used for controlling encoding
- */
- SubpelRefine(const EncoderParams& cp);
-
- //! Destructor
- ~SubpelRefine(){}
-
- //! Does the actual sub-pixel refinement
- /*!
- Does the actual sub-pixel refinement.
- param my_buffer the buffer of pictures being used
- param frame_num the frame number on which motion estimation is being performed
- param me_data the motion vector data, into which the results will be written
- */
- void DoSubpel( const FrameBuffer& my_buffer , int frame_num , MEData& me_data );
-
- private:
- //! Private, body-less copy constructor: this class should not be copied
- SubpelRefine( const SubpelRefine& cpy );
-
- //! Private, body-less assignment=: this class should not be assigned
- SubpelRefine& operator=( const SubpelRefine& rhs );
-
- //! Match a picture from its (upconverted) reference, and record the block mvs
- void MatchPic(const PicArray& pic_data , const PicArray& refup_data , MEData& me_data ,
- int ref_id);
-
- //! Match an individual block
- void DoBlock( const int xblock , const int yblock ,
- BlockMatcher& my_bmatch, MEData& me_data , const int ref_id );
-
- //! Get a prediction for a block MV from the neighbouring blocks
- MVector GetPred( int xblock , int yblock , const MvArray& mvarray );
-
- //member variables
-
- //! A local reference to the encoder params
- const EncoderParams& m_encparams;
-
- //! The list of candidate vectors being tested
- CandidateList m_cand_list;
-
- //! The relative coords of the set of neighbours used to generate MV predictions
- OneDArray<ImageCoords> m_nshift;
-
-
-
- };
- } // namespace dirac
- #endif