Dirac - A Video Codec

Created by the British Broadcasting Corporation.


seq_decompress.h

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00001 /* ***** BEGIN LICENSE BLOCK ***** 00002 * 00003 * $Id: seq_decompress.h,v 1.5 2004/08/11 14:44:44 asuraparaju Exp $ $Name: Dirac_0_4_3 $ 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 * 00027 * Alternatively, the contents of this file may be used under the terms of 00028 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser 00029 * Public License Version 2.1 (the "LGPL"), in which case the provisions of 00030 * the GPL or the LGPL are applicable instead of those above. If you wish to 00031 * allow use of your version of this file only under the terms of the either 00032 * the GPL or LGPL and not to allow others to use your version of this file 00033 * under the MPL, indicate your decision by deleting the provisions above 00034 * and replace them with the notice and other provisions required by the GPL 00035 * or LGPL. If you do not delete the provisions above, a recipient may use 00036 * your version of this file under the terms of any one of the MPL, the GPL 00037 * or the LGPL. 00038 * ***** END LICENSE BLOCK ***** */ 00039 00040 00041 #ifndef _SEQ_DECOMPRESS_H_ 00042 #define _SEQ_DECOMPRESS_H_ 00043 00045 //---------------------------------------// 00046 //Class to manage decompressing sequences// 00047 //---------------------------------------// 00049 00050 #include "libdirac_common/common.h" 00051 #include <iostream> 00052 00053 class FrameBuffer; 00054 class Frame; 00055 class FrameDecompressor; 00056 00058 00061 class SequenceDecompressor{ 00062 public: 00063 00065 00071 SequenceDecompressor(std::istream * ip, bool verbosity); 00072 00074 00077 ~SequenceDecompressor(); 00078 00080 00092 Frame& DecompressNextFrame(bool skip = false); 00093 00095 bool ReadNextFrameHeader(); 00096 00098 Frame& GetNextFrame(); 00099 00101 const FrameParams& GetNextFrameParams() const; 00103 00107 bool Finished() { return m_all_done; } 00108 00110 00115 SeqParams & GetSeqParams() { return m_sparams; } 00116 00117 private: 00119 00123 SequenceDecompressor(const SequenceDecompressor& cpy); 00124 00126 00130 SequenceDecompressor& operator=(const SequenceDecompressor& rhs); 00131 00133 00138 void ReadStreamHeader(); 00139 00140 //Member variables 00141 00143 bool m_all_done; 00145 DecoderParams m_decparams; 00147 SeqParams m_sparams; 00149 FrameBuffer* m_fbuffer; 00151 std::istream* m_infile; 00153 int m_current_code_fnum; 00155 int m_delay; 00157 int m_last_frame_read; 00159 int m_show_fnum; 00161 FrameDecompressor *m_fdecoder; 00162 }; 00163 00164 #endif

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