Dirac - A Video Codec

Created by the British Broadcasting Corporation.


seq_compress.h

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: seq_compress.h,v 1.14 2006/11/14 10:59:27 tjdwave Exp $ $Name:  $
00004 *
00005 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00006 *
00007 * The contents of this file are subject to the Mozilla Public License
00008 * Version 1.1 (the "License"); you may not use this file except in compliance
00009 * with the License. You may obtain a copy of the License at
00010 * http://www.mozilla.org/MPL/
00011 *
00012 * Software distributed under the License is distributed on an "AS IS" basis,
00013 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
00014 * the specific language governing rights and limitations under the License.
00015 *
00016 * The Original Code is BBC Research and Development code.
00017 *
00018 * The Initial Developer of the Original Code is the British Broadcasting
00019 * Corporation.
00020 * Portions created by the Initial Developer are Copyright (C) 2004.
00021 * All Rights Reserved.
00022 *
00023 * Contributor(s): Thomas Davies (Original Author), 
00024 *                 Scott R Ladd,
00025 *                 Anuradha Suraparaju
00026 *                 Andrew Kennedy
00027 *
00028 * Alternatively, the contents of this file may be used under the terms of
00029 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
00030 * Public License Version 2.1 (the "LGPL"), in which case the provisions of
00031 * the GPL or the LGPL are applicable instead of those above. If you wish to
00032 * allow use of your version of this file only under the terms of the either
00033 * the GPL or LGPL and not to allow others to use your version of this file
00034 * under the MPL, indicate your decision by deleting the provisions above
00035 * and replace them with the notice and other provisions required by the GPL
00036 * or LGPL. If you do not delete the provisions above, a recipient may use
00037 * your version of this file under the terms of any one of the MPL, the GPL
00038 * or the LGPL.
00039 * ***** END LICENSE BLOCK ***** */
00040 
00041 #ifndef _SEQ_COMPRESS_H_
00042 #define _SEQ_COMPRESS_H_
00043 
00045 //-------------------------------------//
00046 //Class to manage compressing sequences//
00047 //-------------------------------------//
00049 
00050 #include <libdirac_common/common.h>
00051 #include <libdirac_common/frame_buffer.h>
00052 #include <libdirac_common/pic_io.h>
00053 #include <libdirac_encoder/quality_monitor.h>
00054 #include <libdirac_encoder/frame_compress.h>
00055 #include <libdirac_byteio/dirac_byte_stream.h>
00056 #include <fstream>
00057 
00058 namespace dirac
00059 {
00061 
00067     class SequenceCompressor{
00068     public:
00070 
00079         SequenceCompressor(StreamPicInput* pin, 
00080                            SourceParams& srcp,
00081                            EncoderParams& encp,
00082                            DiracByteStream& dirac_byte_stream);
00083 
00085 
00088         ~SequenceCompressor();
00089 
00091 
00097         bool LoadNextFrame();
00098 
00100 
00119         Frame &CompressNextFrame();
00120 
00122         const Frame *GetFrameEncoded();
00123 
00125         const MEData *GetMEData();
00126 
00127         DiracByteStats EndSequence();
00128 
00130 
00135         bool Finished(){return m_all_done;}
00136 
00137 
00138     private:
00140 
00144         SequenceCompressor(const SequenceCompressor& cpy);
00145 
00147 
00151         SequenceCompressor& operator=(const SequenceCompressor& rhs);
00152 
00154         void Denoise( Frame& frame );
00155 
00157         void DenoiseComponent( PicArray& pic_data );
00158 
00159         ValueType Median( const ValueType* val_list, const int length);
00160 
00165         SequenceCompressor& operator<<(AccessUnitByteIO *p_accessunit_byteio);
00166 
00168 
00173         int CodedToDisplay(const int fnum);
00174 
00176         void MakeSequenceReport(); 
00177 
00179         void MakeFrameReport();
00180 
00182         bool m_all_done;
00183 
00185 
00190         bool m_just_finished;
00191 
00193         SourceParams& m_srcparams;
00194 
00196         EncoderParams& m_encparams;
00197 
00199         StreamPicInput* m_pic_in;
00200 
00202         FrameBuffer* m_fbuffer;
00203 
00205         FrameBuffer* m_origbuffer;
00206 
00207         //state variables for CompressNextFrame
00208 
00210         int m_current_display_fnum;
00211 
00213         int m_current_code_fnum;
00214 
00216         int m_current_accessunit_fnum;
00217 
00219         int m_show_fnum;
00220 
00222         int m_last_frame_read;        
00223 
00225         int m_delay;
00226 
00228         QualityMonitor m_qmonitor;
00229 
00231         FrameCompressor m_fcoder;
00232 
00233 
00235         DiracByteStream& m_dirac_byte_stream;
00236     };
00237 
00238 } // namespace dirac
00239 
00240 #endif

© 2004 British Broadcasting Corporation. Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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