Dirac - A Video Codec

Created by the British Broadcasting Corporation.


seq_compress.h

Go to the documentation of this file.
00001 /* ***** BEGIN LICENSE BLOCK *****
00002 *
00003 * $Id: seq_compress.h,v 1.16 2007/03/21 11:05:43 tjdwave Exp $ $Name: Dirac_0_7_0 $
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_byteio/dirac_byte_stream.h>
00051 #include <libdirac_common/common.h>
00052 #include <libdirac_common/frame_buffer.h>
00053 #include <libdirac_common/pic_io.h>
00054 #include <libdirac_common/dirac_assertions.h>
00055 #include <libdirac_encoder/quality_monitor.h>
00056 #include <libdirac_encoder/frame_compress.h>
00057 #include <libdirac_encoder/rate_control.h>
00058 
00059 #include <fstream>
00060 
00061 namespace dirac
00062 {
00063               
00065 
00071     class SequenceCompressor{
00072     public:
00074 
00083         SequenceCompressor(StreamPicInput* pin, 
00084                            SourceParams& srcp,
00085                            EncoderParams& encp,
00086                            DiracByteStream& dirac_byte_stream);
00087 
00089 
00092         ~SequenceCompressor();
00093 
00095 
00101         bool LoadNextFrame();
00102 
00104 
00123         Frame &CompressNextFrame();
00124 
00126         const Frame *GetFrameEncoded();
00127 
00129         const MEData *GetMEData();
00130 
00131         DiracByteStats EndSequence();
00132 
00134 
00139         bool Finished(){return m_all_done;}
00140 
00141 
00142     private:
00144 
00148         SequenceCompressor(const SequenceCompressor& cpy);
00149 
00151 
00155         SequenceCompressor& operator=(const SequenceCompressor& rhs);
00156 
00158         void Denoise( Frame& frame );
00159 
00161         void DenoiseComponent( PicArray& pic_data );
00162 
00163         ValueType Median( const ValueType* val_list, const int length);
00164 
00169         //SequenceCompressor& operator<<(AccessUnitByteIO *p_accessunit_byteio);
00170 
00172 
00177         int CodedToDisplay(const int fnum);
00178 
00180         void MakeSequenceReport(); 
00181 
00183         void MakeFrameReport();
00184 
00186         bool m_all_done;
00187 
00189 
00194         bool m_just_finished;
00195 
00197         SourceParams& m_srcparams;
00198 
00200         EncoderParams& m_encparams;
00201 
00203         StreamPicInput* m_pic_in;
00204 
00206         FrameBuffer* m_fbuffer;
00207 
00209         FrameBuffer* m_origbuffer;
00210 
00211         //state variables for CompressNextFrame
00212 
00214         int m_current_display_fnum;
00215 
00217         int m_current_code_fnum;
00218 
00220         int m_current_accessunit_fnum;
00221 
00223         int m_show_fnum;
00224 
00226         int m_last_frame_read;        
00227 
00229         int m_delay;
00230 
00232         QualityMonitor m_qmonitor;
00233         
00235         RateController* m_ratecontrol;
00236 
00238         FrameCompressor m_fcoder;
00239 
00241         DiracByteStream& m_dirac_byte_stream;
00242         
00243     };
00244 
00245 } // namespace dirac
00246 
00247 #endif

© 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.