frame_compress.h
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- /* ***** BEGIN LICENSE BLOCK *****
- *
- * $Id: frame_compress.h,v 1.2 2005/01/30 05:11:41 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),
- * Scott R Ladd,
- * Anuradha Suraparaju
- *
- * 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 _FRAME_COMPRESS_H_
- #define _FRAME_COMPRESS_H_
- #include <libdirac_common/frame_buffer.h>
- #include <libdirac_common/common.h>
- #include <libdirac_common/motion.h>
- namespace dirac
- {
- class MvData;
- //! Compress a single image frame
- /*!
- This class compresses a single frame at a time, using parameters
- supplied at its construction. FrameCompressor is used by
- SequenceCompressor.
- */
- class FrameCompressor
- {
- public:
- //! Constructor
- /*!
- Creates a FrameEncoder with specific set of parameters the control
- the compression process. It encodes motion data before encoding
- each component of the frame.
- param encp encoder parameters
- */
- FrameCompressor( EncoderParams& encp );
- //! Destructor
- ~FrameCompressor( );
- //! Compress a specific frame within a group of pictures (GOP)
- /*!
- Compresses a specified frame within a group of pictures.
- param fbuffer picture buffer in which the frame resides
- param orig_buffer the corresponding picture buffer of uncoded originals
- param fnum frame number to compress
- */
- void Compress( FrameBuffer& fbuffer , const FrameBuffer& orig_buffer , int fnum );
- //! Returns true if the frame has been skipped rather than coded normally
- bool IsSkipped(){ return m_skipped; }
- //! Returns true if Motion estimation data is available
- bool IsMEDataAvail() const { return m_medata_avail; }
- //! Returns the motion estimation data
- const MEData* GetMEData() const;
- private:
- //! Copy constructor is private and body-less
- /*!
- Copy constructor is private and body-less. This class should not
- be copied.
- */
- FrameCompressor( const FrameCompressor& cpy );
- //! Assignment = is private and body-less
- /*!
- Assignment = is private and body-less. This class should not be
- assigned.
- */
- FrameCompressor& operator=(const FrameCompressor& rhs);
- //! Write the frame compression header
- void WriteFrameHeader(const FrameParams& fparams);
- //member variables
- // a local copy of the encoder params
- EncoderParams& m_encparams;
-
- // Pointer to the motion vector data
- MEData* m_me_data;
- // True if the frame has been skipped, false otherwise
- bool m_skipped;
- // True if we use global motion vectors, false otherwise
- bool m_use_global;
- // True if we use block motion vectors, false otherwise
- bool m_use_block_mv;
-
- // Prediction mode to use if we only have global motion vectors
- PredMode m_global_pred_mode;
-
- // True if motion estimation data is available
- bool m_medata_avail;
- };
- } // namespace dirac
- #endif