Created by the British Broadcasting Corporation.
00001 /* ***** BEGIN LICENSE BLOCK ***** 00002 * 00003 * $Id: picture_byteio.h,v 1.1 2008/01/31 11:25:15 tjdwave Exp $ $Name: Dirac_1_0_2 $ 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): Andrew Kennedy (Original Author) 00024 * Anuradha Suraparaju 00025 * 00026 * Alternatively, the contents of this file may be used under the terms of 00027 * the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser 00028 * Public License Version 2.1 (the "LGPL"), in which case the provisions of 00029 * the GPL or the LGPL are applicable instead of those above. If you wish to 00030 * allow use of your version of this file only under the terms of the either 00031 * the GPL or LGPL and not to allow others to use your version of this file 00032 * under the MPL, indicate your decision by deleting the provisions above 00033 * and replace them with the notice and other provisions required by the GPL 00034 * or LGPL. If you do not delete the provisions above, a recipient may use 00035 * your version of this file under the terms of any one of the MPL, the GPL 00036 * or the LGPL. 00037 * ***** END LICENSE BLOCK ***** */ 00038 00042 #ifndef picture_byteio_h 00043 #define picture_byteio_h 00044 00045 00046 //LOCAL INCLUDES 00047 #include <libdirac_byteio/parseunit_byteio.h> // Parent class 00048 #include <libdirac_byteio/mvdata_byteio.h> // Contains mvdata streams 00049 #include <libdirac_byteio/transform_byteio.h> // Transform header 00050 00051 // DIRAC includes 00052 #include <libdirac_common/common.h> // PictureType etc 00053 00054 00055 namespace dirac 00056 { 00060 class PictureByteIO : public ParseUnitByteIO 00061 { 00062 public: 00063 00069 PictureByteIO(PictureParams& frame_params, 00070 int frame_num); 00071 00072 00078 PictureByteIO(PictureParams& frame_params, 00079 const ParseUnitByteIO& parseunit_byteio); 00080 00084 virtual ~PictureByteIO(); 00085 00090 void CollateByteStats(DiracByteStats& dirac_byte_stats); 00091 00095 bool Input(); 00096 00100 void Output(); 00101 00102 00103 00104 const std::string GetBytes(); 00105 00106 int GetSize() const; 00107 00111 ParseUnitType GetType() const { return PU_PICTURE;} 00112 00116 int IsRef() const { return (GetParseCode()&0x0C)==0x0C;} 00117 00121 int IsNonRef() const { return (GetParseCode()&0x0C)==0x08;} 00122 00126 int NumRefs() const { return (GetParseCode()&0x03);} 00127 00131 bool IsIntra() const { return IsPicture() && (NumRefs()==0) ; } 00132 00136 bool IsInter() const { return IsPicture() && (NumRefs()>0) ; } 00137 00138 /*** 00139 * Sets the MVDataIO 00140 */ 00141 void SetMvData(MvDataByteIO *mv_data) {m_mv_data = mv_data; } 00142 00143 /*** 00144 * Sets the TransformByteIo 00145 */ 00146 void SetTransformData(TransformByteIO *transform_data) {m_transform_data = transform_data; } 00147 00148 protected: 00149 00150 00151 private: 00152 00157 unsigned char CalcParseCode() const; 00158 00162 void InputReferencePictures(); 00163 00167 void InputRetiredPicture(); 00168 00172 void SetPictureType(); 00173 00177 void SetReferenceType(); 00178 00182 void SetEntropyCodingFlag(); 00183 00187 PictureParams& m_frame_params; 00188 00192 int m_frame_num; 00193 00197 MvDataByteIO * m_mv_data; 00198 00202 TransformByteIO * m_transform_data; 00203 00204 }; 00205 00206 } // namespace dirac 00207 00208 #endif
© 2004 British Broadcasting Corporation.
Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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