1 | /* The copyright in this software is being made available under the BSD |
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2 | * License, included below. This software may be subject to other third party |
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3 | * and contributor rights, including patent rights, and no such rights are |
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4 | * granted under this license. |
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5 | * |
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6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * |
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12 | * * Redistributions of source code must retain the above copyright notice, |
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13 | * this list of conditions and the following disclaimer. |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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18 | * be used to endorse or promote products derived from this software without |
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19 | * specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | /** \file TVideoIOYuv.cpp |
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35 | \brief YUV file I/O class |
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36 | */ |
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37 | |
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38 | #include <cstdlib> |
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39 | #include <fcntl.h> |
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40 | #include <assert.h> |
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41 | #include <sys/stat.h> |
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42 | #include <fstream> |
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43 | #include <iostream> |
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44 | #include <memory.h> |
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45 | |
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46 | #include "TLibCommon/TComRom.h" |
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47 | #include "TVideoIOYuv.h" |
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48 | |
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49 | using namespace std; |
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50 | |
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51 | // ==================================================================================================================== |
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52 | // Local Functions |
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53 | // ==================================================================================================================== |
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54 | |
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55 | /** |
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56 | * Scale all pixels in img depending upon sign of shiftbits by a factor of |
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57 | * 2<sup>shiftbits</sup>. |
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58 | * |
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59 | * @param img pointer to image to be transformed |
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60 | * @param stride distance between vertically adjacent pixels of img. |
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61 | * @param width width of active area in img. |
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62 | * @param height height of active area in img. |
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63 | * @param shiftbits if zero, no operation performed |
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64 | * if > 0, multiply by 2<sup>shiftbits</sup>, see scalePlane() |
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65 | * if < 0, divide and round by 2<sup>shiftbits</sup> and clip, |
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66 | * see invScalePlane(). |
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67 | * @param minval minimum clipping value when dividing. |
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68 | * @param maxval maximum clipping value when dividing. |
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69 | */ |
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70 | static Void scalePlane(Pel* img, const UInt stride, const UInt width, const UInt height, Int shiftbits, Pel minval, Pel maxval) |
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71 | { |
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72 | if (shiftbits > 0) |
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73 | { |
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74 | for (UInt y = 0; y < height; y++, img+=stride) |
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75 | { |
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76 | for (UInt x = 0; x < width; x++) |
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77 | { |
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78 | img[x] <<= shiftbits; |
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79 | } |
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80 | } |
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81 | } |
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82 | else if (shiftbits < 0) |
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83 | { |
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84 | shiftbits=-shiftbits; |
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85 | |
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86 | Pel rounding = 1 << (shiftbits-1); |
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87 | for (UInt y = 0; y < height; y++, img+=stride) |
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88 | { |
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89 | for (UInt x = 0; x < width; x++) |
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90 | { |
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91 | img[x] = Clip3(minval, maxval, Pel((img[x] + rounding) >> shiftbits)); |
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92 | } |
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93 | } |
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94 | } |
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95 | } |
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96 | |
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97 | |
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98 | // ==================================================================================================================== |
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99 | // Public member functions |
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100 | // ==================================================================================================================== |
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101 | |
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102 | /** |
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103 | * Open file for reading/writing Y'CbCr frames. |
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104 | * |
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105 | * Frames read/written have bitdepth fileBitDepth, and are automatically |
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106 | * formatted as 8 or 16 bit word values (see TVideoIOYuv::write()). |
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107 | * |
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108 | * Image data read or written is converted to/from internalBitDepth |
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109 | * (See scalePlane(), TVideoIOYuv::read() and TVideoIOYuv::write() for |
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110 | * further details). |
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111 | * |
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112 | * \param pchFile file name string |
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113 | * \param bWriteMode file open mode: true=read, false=write |
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114 | * \param fileBitDepth bit-depth array of input/output file data. |
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115 | * \param MSBExtendedBitDepth |
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116 | * \param internalBitDepth bit-depth array to scale image data to/from when reading/writing. |
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117 | */ |
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118 | Void TVideoIOYuv::open( Char* pchFile, Bool bWriteMode, const Int fileBitDepth[MAX_NUM_CHANNEL_TYPE], const Int MSBExtendedBitDepth[MAX_NUM_CHANNEL_TYPE], const Int internalBitDepth[MAX_NUM_CHANNEL_TYPE] ) |
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119 | { |
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120 | //NOTE: files cannot have bit depth greater than 16 |
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121 | for(UInt ch=0; ch<MAX_NUM_CHANNEL_TYPE; ch++) |
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122 | { |
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123 | m_fileBitdepth [ch] = std::min<UInt>(fileBitDepth[ch], 16); |
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124 | m_MSBExtendedBitDepth[ch] = MSBExtendedBitDepth[ch]; |
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125 | m_bitdepthShift [ch] = internalBitDepth[ch] - m_MSBExtendedBitDepth[ch]; |
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126 | |
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127 | if (m_fileBitdepth[ch] > 16) |
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128 | { |
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129 | if (bWriteMode) |
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130 | { |
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131 | std::cerr << "\nWARNING: Cannot write a yuv file of bit depth greater than 16 - output will be right-shifted down to 16-bit precision\n" << std::endl; |
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132 | } |
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133 | else |
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134 | { |
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135 | std::cerr << "\nERROR: Cannot read a yuv file of bit depth greater than 16\n" << std::endl; |
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136 | exit(0); |
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137 | } |
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138 | } |
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139 | } |
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140 | |
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141 | if ( bWriteMode ) |
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142 | { |
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143 | m_cHandle.open( pchFile, ios::binary | ios::out ); |
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144 | |
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145 | if( m_cHandle.fail() ) |
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146 | { |
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147 | printf("\nfailed to write reconstructed YUV file\n"); |
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148 | exit(0); |
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149 | } |
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150 | } |
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151 | else |
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152 | { |
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153 | m_cHandle.open( pchFile, ios::binary | ios::in ); |
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154 | |
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155 | if( m_cHandle.fail() ) |
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156 | { |
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157 | printf("\nfailed to open Input YUV file\n"); |
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158 | exit(0); |
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159 | } |
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160 | } |
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161 | |
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162 | return; |
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163 | } |
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164 | |
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165 | Void TVideoIOYuv::close() |
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166 | { |
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167 | m_cHandle.close(); |
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168 | } |
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169 | |
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170 | Bool TVideoIOYuv::isEof() |
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171 | { |
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172 | return m_cHandle.eof(); |
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173 | } |
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174 | |
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175 | Bool TVideoIOYuv::isFail() |
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176 | { |
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177 | return m_cHandle.fail(); |
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178 | } |
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179 | |
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180 | /** |
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181 | * Skip numFrames in input. |
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182 | * |
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183 | * This function correctly handles cases where the input file is not |
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184 | * seekable, by consuming bytes. |
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185 | */ |
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186 | Void TVideoIOYuv::skipFrames(UInt numFrames, UInt width, UInt height, ChromaFormat format) |
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187 | { |
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188 | if (!numFrames) |
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189 | { |
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190 | return; |
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191 | } |
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192 | |
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193 | //------------------ |
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194 | //set the frame size according to the chroma format |
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195 | streamoff frameSize = 0; |
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196 | UInt wordsize=1; // default to 8-bit, unless a channel with more than 8-bits is detected. |
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197 | for (UInt component = 0; component < getNumberValidComponents(format); component++) |
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198 | { |
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199 | ComponentID compID=ComponentID(component); |
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200 | frameSize += (width >> getComponentScaleX(compID, format)) * (height >> getComponentScaleY(compID, format)); |
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201 | if (m_fileBitdepth[toChannelType(compID)] > 8) |
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202 | { |
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203 | wordsize=2; |
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204 | } |
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205 | } |
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206 | frameSize *= wordsize; |
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207 | //------------------ |
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208 | |
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209 | const streamoff offset = frameSize * numFrames; |
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210 | |
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211 | /* attempt to seek */ |
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212 | if (!!m_cHandle.seekg(offset, ios::cur)) |
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213 | { |
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214 | return; /* success */ |
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215 | } |
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216 | m_cHandle.clear(); |
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217 | |
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218 | /* fall back to consuming the input */ |
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219 | Char buf[512]; |
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220 | const UInt offset_mod_bufsize = offset % sizeof(buf); |
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221 | for (streamoff i = 0; i < offset - offset_mod_bufsize; i += sizeof(buf)) |
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222 | { |
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223 | m_cHandle.read(buf, sizeof(buf)); |
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224 | } |
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225 | m_cHandle.read(buf, offset_mod_bufsize); |
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226 | } |
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227 | |
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228 | /** |
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229 | * Read width*height pixels from fd into dst, optionally |
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230 | * padding the left and right edges by edge-extension. Input may be |
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231 | * either 8bit or 16bit little-endian lsb-aligned words. |
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232 | * |
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233 | * @param dst destination image plane |
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234 | * @param fd input file stream |
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235 | * @param is16bit true if input file carries > 8bit data, false otherwise. |
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236 | * @param stride444 distance between vertically adjacent pixels of dst. |
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237 | * @param width444 width of active area in dst. |
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238 | * @param height444 height of active area in dst. |
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239 | * @param pad_x444 length of horizontal padding. |
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240 | * @param pad_y444 length of vertical padding. |
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241 | * @param compID chroma component |
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242 | * @param destFormat chroma format of image |
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243 | * @param fileFormat chroma format of file |
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244 | * @param fileBitDepth component bit depth in file |
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245 | * @return true for success, false in case of error |
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246 | */ |
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247 | static Bool readPlane(Pel* dst, |
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248 | istream& fd, |
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249 | Bool is16bit, |
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250 | UInt stride444, |
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251 | UInt width444, |
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252 | UInt height444, |
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253 | UInt pad_x444, |
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254 | UInt pad_y444, |
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255 | const ComponentID compID, |
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256 | const ChromaFormat destFormat, |
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257 | const ChromaFormat fileFormat, |
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258 | const UInt fileBitDepth) |
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259 | { |
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260 | const UInt csx_file =getComponentScaleX(compID, fileFormat); |
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261 | const UInt csy_file =getComponentScaleY(compID, fileFormat); |
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262 | const UInt csx_dest =getComponentScaleX(compID, destFormat); |
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263 | const UInt csy_dest =getComponentScaleY(compID, destFormat); |
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264 | |
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265 | const UInt width_dest = width444 >>csx_dest; |
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266 | const UInt height_dest = height444>>csy_dest; |
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267 | const UInt pad_x_dest = pad_x444>>csx_dest; |
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268 | const UInt pad_y_dest = pad_y444>>csy_dest; |
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269 | const UInt stride_dest = stride444>>csx_dest; |
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270 | |
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271 | const UInt full_width_dest = width_dest+pad_x_dest; |
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272 | const UInt full_height_dest = height_dest+pad_y_dest; |
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273 | |
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274 | const UInt stride_file = (width444 * (is16bit ? 2 : 1)) >> csx_file; |
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275 | |
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276 | UChar *buf = new UChar[stride_file]; |
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277 | |
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278 | if (compID!=COMPONENT_Y && (fileFormat==CHROMA_400 || destFormat==CHROMA_400)) |
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279 | { |
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280 | if (destFormat!=CHROMA_400) |
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281 | { |
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282 | // set chrominance data to mid-range: (1<<(fileBitDepth-1)) |
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283 | const Pel value=Pel(1<<(fileBitDepth-1)); |
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284 | for (UInt y = 0; y < full_height_dest; y++, dst+=stride_dest) |
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285 | { |
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286 | for (UInt x = 0; x < full_width_dest; x++) |
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287 | { |
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288 | dst[x] = value; |
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289 | } |
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290 | } |
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291 | } |
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292 | |
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293 | if (fileFormat!=CHROMA_400) |
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294 | { |
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295 | const UInt height_file = height444>>csy_file; |
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296 | fd.seekg(height_file*stride_file, ios::cur); |
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297 | if (fd.eof() || fd.fail() ) |
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298 | { |
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299 | delete[] buf; |
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300 | return false; |
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301 | } |
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302 | } |
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303 | } |
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304 | else |
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305 | { |
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306 | const UInt mask_y_file=(1<<csy_file)-1; |
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307 | const UInt mask_y_dest=(1<<csy_dest)-1; |
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308 | for(UInt y444=0; y444<height444; y444++) |
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309 | { |
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310 | if ((y444&mask_y_file)==0) |
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311 | { |
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312 | // read a new line |
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313 | fd.read(reinterpret_cast<Char*>(buf), stride_file); |
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314 | if (fd.eof() || fd.fail() ) |
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315 | { |
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316 | delete[] buf; |
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317 | return false; |
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318 | } |
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319 | } |
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320 | |
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321 | if ((y444&mask_y_dest)==0) |
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322 | { |
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323 | // process current destination line |
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324 | if (csx_file < csx_dest) |
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325 | { |
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326 | // eg file is 444, dest is 422. |
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327 | const UInt sx=csx_dest-csx_file; |
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328 | if (!is16bit) |
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329 | { |
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330 | for (UInt x = 0; x < width_dest; x++) |
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331 | { |
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332 | dst[x] = buf[x<<sx]; |
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333 | } |
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334 | } |
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335 | else |
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336 | { |
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337 | for (UInt x = 0; x < width_dest; x++) |
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338 | { |
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339 | dst[x] = Pel(buf[(x<<sx)*2+0]) | (Pel(buf[(x<<sx)*2+1])<<8); |
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340 | } |
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341 | } |
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342 | } |
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343 | else |
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344 | { |
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345 | // eg file is 422, dest is 444. |
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346 | const UInt sx=csx_file-csx_dest; |
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347 | if (!is16bit) |
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348 | { |
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349 | for (UInt x = 0; x < width_dest; x++) |
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350 | { |
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351 | dst[x] = buf[x>>sx]; |
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352 | } |
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353 | } |
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354 | else |
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355 | { |
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356 | for (UInt x = 0; x < width_dest; x++) |
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357 | { |
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358 | dst[x] = Pel(buf[(x>>sx)*2+0]) | (Pel(buf[(x>>sx)*2+1])<<8); |
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359 | } |
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360 | } |
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361 | } |
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362 | |
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363 | // process right hand side padding |
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364 | const Pel val=dst[width_dest-1]; |
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365 | for (UInt x = width_dest; x < full_width_dest; x++) |
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366 | { |
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367 | dst[x] = val; |
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368 | } |
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369 | |
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370 | dst += stride_dest; |
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371 | } |
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372 | } |
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373 | |
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374 | // process lower padding |
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375 | for (UInt y = height_dest; y < full_height_dest; y++, dst+=stride_dest) |
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376 | { |
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377 | for (UInt x = 0; x < full_width_dest; x++) |
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378 | { |
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379 | dst[x] = (dst - stride_dest)[x]; |
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380 | } |
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381 | } |
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382 | } |
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383 | delete[] buf; |
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384 | return true; |
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385 | } |
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386 | |
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387 | /** |
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388 | * Write an image plane (width444*height444 pixels) from src into output stream fd. |
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389 | * |
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390 | * @param fd output file stream |
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391 | * @param src source image |
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392 | * @param is16bit true if input file carries > 8bit data, false otherwise. |
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393 | * @param stride444 distance between vertically adjacent pixels of src. |
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394 | * @param width444 width of active area in src. |
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395 | * @param height444 height of active area in src. |
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396 | * @param compID chroma component |
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397 | * @param srcFormat chroma format of image |
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398 | * @param fileFormat chroma format of file |
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399 | * @param fileBitDepth component bit depth in file |
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400 | * @return true for success, false in case of error |
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401 | */ |
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402 | static Bool writePlane(ostream& fd, Pel* src, Bool is16bit, |
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403 | UInt stride444, |
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404 | UInt width444, UInt height444, |
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405 | const ComponentID compID, |
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406 | const ChromaFormat srcFormat, |
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407 | const ChromaFormat fileFormat, |
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408 | const UInt fileBitDepth) |
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409 | { |
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410 | const UInt csx_file =getComponentScaleX(compID, fileFormat); |
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411 | const UInt csy_file =getComponentScaleY(compID, fileFormat); |
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412 | const UInt csx_src =getComponentScaleX(compID, srcFormat); |
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413 | const UInt csy_src =getComponentScaleY(compID, srcFormat); |
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414 | |
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415 | const UInt stride_src = stride444>>csx_src; |
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416 | |
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417 | const UInt stride_file = (width444 * (is16bit ? 2 : 1)) >> csx_file; |
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418 | const UInt width_file = width444 >>csx_file; |
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419 | const UInt height_file = height444>>csy_file; |
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420 | |
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421 | UChar *buf = new UChar[stride_file]; |
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422 | |
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423 | if (compID!=COMPONENT_Y && (fileFormat==CHROMA_400 || srcFormat==CHROMA_400)) |
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424 | { |
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425 | if (fileFormat!=CHROMA_400) |
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426 | { |
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427 | const UInt value=1<<(fileBitDepth-1); |
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428 | |
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429 | for(UInt y=0; y< height_file; y++) |
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430 | { |
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431 | if (!is16bit) |
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432 | { |
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433 | UChar val(value); |
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434 | for (UInt x = 0; x < width_file; x++) |
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435 | { |
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436 | buf[x]=val; |
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437 | } |
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438 | } |
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439 | else |
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440 | { |
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441 | UShort val(value); |
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442 | for (UInt x = 0; x < width_file; x++) |
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443 | { |
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444 | buf[2*x+0]= (val>>0) & 0xff; |
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445 | buf[2*x+1]= (val>>8) & 0xff; |
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446 | } |
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447 | } |
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448 | |
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449 | fd.write(reinterpret_cast<Char*>(buf), stride_file); |
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450 | if (fd.eof() || fd.fail() ) |
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451 | { |
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452 | delete[] buf; |
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453 | return false; |
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454 | } |
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455 | } |
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456 | } |
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457 | } |
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458 | else |
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459 | { |
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460 | const UInt mask_y_file=(1<<csy_file)-1; |
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461 | const UInt mask_y_src =(1<<csy_src )-1; |
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462 | for(UInt y444=0; y444<height444; y444++) |
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463 | { |
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464 | if ((y444&mask_y_file)==0) |
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465 | { |
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466 | // write a new line |
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467 | if (csx_file < csx_src) |
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468 | { |
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469 | // eg file is 444, source is 422. |
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470 | const UInt sx=csx_src-csx_file; |
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471 | if (!is16bit) |
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472 | { |
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473 | for (UInt x = 0; x < width_file; x++) |
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474 | { |
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475 | buf[x] = (UChar)(src[x>>sx]); |
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476 | } |
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477 | } |
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478 | else |
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479 | { |
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480 | for (UInt x = 0; x < width_file; x++) |
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481 | { |
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482 | buf[2*x ] = (src[x>>sx]>>0) & 0xff; |
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483 | buf[2*x+1] = (src[x>>sx]>>8) & 0xff; |
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484 | } |
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485 | } |
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486 | } |
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487 | else |
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488 | { |
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489 | // eg file is 422, src is 444. |
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490 | const UInt sx=csx_file-csx_src; |
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491 | if (!is16bit) |
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492 | { |
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493 | for (UInt x = 0; x < width_file; x++) |
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494 | { |
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495 | buf[x] = (UChar)(src[x<<sx]); |
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496 | } |
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497 | } |
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498 | else |
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499 | { |
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500 | for (UInt x = 0; x < width_file; x++) |
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501 | { |
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502 | buf[2*x ] = (src[x<<sx]>>0) & 0xff; |
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503 | buf[2*x+1] = (src[x<<sx]>>8) & 0xff; |
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504 | } |
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505 | } |
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506 | } |
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507 | |
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508 | fd.write(reinterpret_cast<Char*>(buf), stride_file); |
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509 | if (fd.eof() || fd.fail() ) |
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510 | { |
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511 | delete[] buf; |
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512 | return false; |
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513 | } |
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514 | } |
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515 | |
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516 | if ((y444&mask_y_src)==0) |
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517 | { |
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518 | src += stride_src; |
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519 | } |
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520 | |
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521 | } |
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522 | } |
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523 | delete[] buf; |
---|
524 | return true; |
---|
525 | } |
---|
526 | |
---|
527 | static Bool writeField(ostream& fd, Pel* top, Pel* bottom, Bool is16bit, |
---|
528 | UInt stride444, |
---|
529 | UInt width444, UInt height444, |
---|
530 | const ComponentID compID, |
---|
531 | const ChromaFormat srcFormat, |
---|
532 | const ChromaFormat fileFormat, |
---|
533 | const UInt fileBitDepth, const Bool isTff) |
---|
534 | { |
---|
535 | const UInt csx_file =getComponentScaleX(compID, fileFormat); |
---|
536 | const UInt csy_file =getComponentScaleY(compID, fileFormat); |
---|
537 | const UInt csx_src =getComponentScaleX(compID, srcFormat); |
---|
538 | const UInt csy_src =getComponentScaleY(compID, srcFormat); |
---|
539 | |
---|
540 | const UInt stride_src = stride444>>csx_src; |
---|
541 | |
---|
542 | const UInt stride_file = (width444 * (is16bit ? 2 : 1)) >> csx_file; |
---|
543 | const UInt width_file = width444 >>csx_file; |
---|
544 | const UInt height_file = height444>>csy_file; |
---|
545 | |
---|
546 | UChar *buf = new UChar[stride_file * 2]; |
---|
547 | |
---|
548 | if (compID!=COMPONENT_Y && (fileFormat==CHROMA_400 || srcFormat==CHROMA_400)) |
---|
549 | { |
---|
550 | if (fileFormat!=CHROMA_400) |
---|
551 | { |
---|
552 | const UInt value=1<<(fileBitDepth-1); |
---|
553 | |
---|
554 | for(UInt y=0; y< height_file; y++) |
---|
555 | { |
---|
556 | for (UInt field = 0; field < 2; field++) |
---|
557 | { |
---|
558 | UChar *fieldBuffer = buf + (field * stride_file); |
---|
559 | |
---|
560 | if (!is16bit) |
---|
561 | { |
---|
562 | UChar val(value); |
---|
563 | for (UInt x = 0; x < width_file; x++) |
---|
564 | { |
---|
565 | fieldBuffer[x]=val; |
---|
566 | } |
---|
567 | } |
---|
568 | else |
---|
569 | { |
---|
570 | UShort val(value); |
---|
571 | for (UInt x = 0; x < width_file; x++) |
---|
572 | { |
---|
573 | fieldBuffer[2*x+0]= (val>>0) & 0xff; |
---|
574 | fieldBuffer[2*x+1]= (val>>8) & 0xff; |
---|
575 | } |
---|
576 | } |
---|
577 | } |
---|
578 | |
---|
579 | fd.write(reinterpret_cast<Char*>(buf), (stride_file * 2)); |
---|
580 | if (fd.eof() || fd.fail() ) |
---|
581 | { |
---|
582 | delete[] buf; |
---|
583 | return false; |
---|
584 | } |
---|
585 | } |
---|
586 | } |
---|
587 | } |
---|
588 | else |
---|
589 | { |
---|
590 | const UInt mask_y_file=(1<<csy_file)-1; |
---|
591 | const UInt mask_y_src =(1<<csy_src )-1; |
---|
592 | for(UInt y444=0; y444<height444; y444++) |
---|
593 | { |
---|
594 | if ((y444&mask_y_file)==0) |
---|
595 | { |
---|
596 | for (UInt field = 0; field < 2; field++) |
---|
597 | { |
---|
598 | UChar *fieldBuffer = buf + (field * stride_file); |
---|
599 | Pel *src = (((field == 0) && isTff) || ((field == 1) && (!isTff))) ? top : bottom; |
---|
600 | |
---|
601 | // write a new line |
---|
602 | if (csx_file < csx_src) |
---|
603 | { |
---|
604 | // eg file is 444, source is 422. |
---|
605 | const UInt sx=csx_src-csx_file; |
---|
606 | if (!is16bit) |
---|
607 | { |
---|
608 | for (UInt x = 0; x < width_file; x++) |
---|
609 | { |
---|
610 | fieldBuffer[x] = (UChar)(src[x>>sx]); |
---|
611 | } |
---|
612 | } |
---|
613 | else |
---|
614 | { |
---|
615 | for (UInt x = 0; x < width_file; x++) |
---|
616 | { |
---|
617 | fieldBuffer[2*x ] = (src[x>>sx]>>0) & 0xff; |
---|
618 | fieldBuffer[2*x+1] = (src[x>>sx]>>8) & 0xff; |
---|
619 | } |
---|
620 | } |
---|
621 | } |
---|
622 | else |
---|
623 | { |
---|
624 | // eg file is 422, src is 444. |
---|
625 | const UInt sx=csx_file-csx_src; |
---|
626 | if (!is16bit) |
---|
627 | { |
---|
628 | for (UInt x = 0; x < width_file; x++) |
---|
629 | { |
---|
630 | fieldBuffer[x] = (UChar)(src[x<<sx]); |
---|
631 | } |
---|
632 | } |
---|
633 | else |
---|
634 | { |
---|
635 | for (UInt x = 0; x < width_file; x++) |
---|
636 | { |
---|
637 | fieldBuffer[2*x ] = (src[x<<sx]>>0) & 0xff; |
---|
638 | fieldBuffer[2*x+1] = (src[x<<sx]>>8) & 0xff; |
---|
639 | } |
---|
640 | } |
---|
641 | } |
---|
642 | } |
---|
643 | |
---|
644 | fd.write(reinterpret_cast<Char*>(buf), (stride_file * 2)); |
---|
645 | if (fd.eof() || fd.fail() ) |
---|
646 | { |
---|
647 | delete[] buf; |
---|
648 | return false; |
---|
649 | } |
---|
650 | } |
---|
651 | |
---|
652 | if ((y444&mask_y_src)==0) |
---|
653 | { |
---|
654 | top += stride_src; |
---|
655 | bottom += stride_src; |
---|
656 | } |
---|
657 | |
---|
658 | } |
---|
659 | } |
---|
660 | delete[] buf; |
---|
661 | return true; |
---|
662 | } |
---|
663 | |
---|
664 | /** |
---|
665 | * Read one Y'CbCr frame, performing any required input scaling to change |
---|
666 | * from the bitdepth of the input file to the internal bit-depth. |
---|
667 | * |
---|
668 | * If a bit-depth reduction is required, and internalBitdepth >= 8, then |
---|
669 | * the input file is assumed to be ITU-R BT.601/709 compliant, and the |
---|
670 | * resulting data is clipped to the appropriate legal range, as if the |
---|
671 | * file had been provided at the lower-bitdepth compliant to Rec601/709. |
---|
672 | * |
---|
673 | * @param pPicYuvUser input picture YUV buffer class pointer |
---|
674 | * @param pPicYuvTrueOrg |
---|
675 | * @param ipcsc |
---|
676 | * @param aiPad source padding size, aiPad[0] = horizontal, aiPad[1] = vertical |
---|
677 | * @param format chroma format |
---|
678 | * @return true for success, false in case of error |
---|
679 | */ |
---|
680 | Bool TVideoIOYuv::read ( TComPicYuv* pPicYuvUser, TComPicYuv* pPicYuvTrueOrg, const InputColourSpaceConversion ipcsc, Int aiPad[2], ChromaFormat format ) |
---|
681 | { |
---|
682 | // check end-of-file |
---|
683 | if ( isEof() ) |
---|
684 | { |
---|
685 | return false; |
---|
686 | } |
---|
687 | TComPicYuv *pPicYuv=pPicYuvTrueOrg; |
---|
688 | if (format>=NUM_CHROMA_FORMAT) |
---|
689 | { |
---|
690 | format=pPicYuv->getChromaFormat(); |
---|
691 | } |
---|
692 | |
---|
693 | Bool is16bit = false; |
---|
694 | |
---|
695 | for(UInt ch=0; ch<MAX_NUM_CHANNEL_TYPE; ch++) |
---|
696 | { |
---|
697 | if (m_fileBitdepth[ch] > 8) |
---|
698 | { |
---|
699 | is16bit=true; |
---|
700 | } |
---|
701 | } |
---|
702 | |
---|
703 | const UInt stride444 = pPicYuv->getStride(COMPONENT_Y); |
---|
704 | |
---|
705 | // compute actual YUV width & height excluding padding size |
---|
706 | const UInt pad_h444 = aiPad[0]; |
---|
707 | const UInt pad_v444 = aiPad[1]; |
---|
708 | |
---|
709 | const UInt width_full444 = pPicYuv->getWidth(COMPONENT_Y); |
---|
710 | const UInt height_full444 = pPicYuv->getHeight(COMPONENT_Y); |
---|
711 | |
---|
712 | const UInt width444 = width_full444 - pad_h444; |
---|
713 | const UInt height444 = height_full444 - pad_v444; |
---|
714 | |
---|
715 | for(UInt comp=0; comp<MAX_NUM_COMPONENT; comp++) |
---|
716 | { |
---|
717 | const ComponentID compID = ComponentID(comp); |
---|
718 | const ChannelType chType=toChannelType(compID); |
---|
719 | |
---|
720 | const Int desired_bitdepth = m_MSBExtendedBitDepth[chType] + m_bitdepthShift[chType]; |
---|
721 | |
---|
722 | #if !CLIP_TO_709_RANGE |
---|
723 | const Pel minval = 0; |
---|
724 | const Pel maxval = (1 << desired_bitdepth) - 1; |
---|
725 | #else |
---|
726 | const Bool b709Compliance=(m_bitdepthShift[chType] < 0 && desired_bitdepth >= 8); /* ITU-R BT.709 compliant clipping for converting say 10b to 8b */ |
---|
727 | const Pel minval = b709Compliance? (( 1 << (desired_bitdepth - 8)) ) : 0; |
---|
728 | const Pel maxval = b709Compliance? ((0xff << (desired_bitdepth - 8)) -1) : (1 << desired_bitdepth) - 1; |
---|
729 | #endif |
---|
730 | |
---|
731 | if (! readPlane(pPicYuv->getAddr(compID), m_cHandle, is16bit, stride444, width444, height444, pad_h444, pad_v444, compID, pPicYuv->getChromaFormat(), format, m_fileBitdepth[chType])) |
---|
732 | { |
---|
733 | return false; |
---|
734 | } |
---|
735 | |
---|
736 | if (compID < pPicYuv->getNumberValidComponents() ) |
---|
737 | { |
---|
738 | const UInt csx=getComponentScaleX(compID, pPicYuv->getChromaFormat()); |
---|
739 | const UInt csy=getComponentScaleY(compID, pPicYuv->getChromaFormat()); |
---|
740 | scalePlane(pPicYuv->getAddr(compID), stride444>>csx, width_full444>>csx, height_full444>>csy, m_bitdepthShift[chType], minval, maxval); |
---|
741 | } |
---|
742 | } |
---|
743 | |
---|
744 | Int internalBitDepth[MAX_NUM_CHANNEL_TYPE]; |
---|
745 | for(UInt chType=0; chType<MAX_NUM_CHANNEL_TYPE; chType++) |
---|
746 | { |
---|
747 | internalBitDepth[chType] = m_bitdepthShift[chType] + m_MSBExtendedBitDepth[chType]; |
---|
748 | } |
---|
749 | ColourSpaceConvert(*pPicYuvTrueOrg, *pPicYuvUser, ipcsc, internalBitDepth, true); |
---|
750 | |
---|
751 | return true; |
---|
752 | } |
---|
753 | |
---|
754 | /** |
---|
755 | * Write one Y'CbCr frame. No bit-depth conversion is performed, pcPicYuv is |
---|
756 | * assumed to be at TVideoIO::m_fileBitdepth depth. |
---|
757 | * |
---|
758 | * @param pPicYuvUser input picture YUV buffer class pointer |
---|
759 | * @param ipCSC |
---|
760 | * @param confLeft conformance window left border |
---|
761 | * @param confRight conformance window right border |
---|
762 | * @param confTop conformance window top border |
---|
763 | * @param confBottom conformance window bottom border |
---|
764 | * @param format chroma format |
---|
765 | * @return true for success, false in case of error |
---|
766 | */ |
---|
767 | Bool TVideoIOYuv::write( TComPicYuv* pPicYuvUser, const InputColourSpaceConversion ipCSC, Int confLeft, Int confRight, Int confTop, Int confBottom, ChromaFormat format ) |
---|
768 | { |
---|
769 | TComPicYuv cPicYuvCSCd; |
---|
770 | if (ipCSC!=IPCOLOURSPACE_UNCHANGED) |
---|
771 | { |
---|
772 | cPicYuvCSCd.create(pPicYuvUser->getWidth(COMPONENT_Y), pPicYuvUser->getHeight(COMPONENT_Y), pPicYuvUser->getChromaFormat(), g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth); |
---|
773 | Int internalBitDepth[MAX_NUM_CHANNEL_TYPE]; |
---|
774 | for(UInt chType=0; chType<MAX_NUM_CHANNEL_TYPE; chType++) |
---|
775 | { |
---|
776 | internalBitDepth[chType] = m_bitdepthShift[chType] + m_MSBExtendedBitDepth[chType]; |
---|
777 | } |
---|
778 | ColourSpaceConvert(*pPicYuvUser, cPicYuvCSCd, ipCSC, internalBitDepth, false); |
---|
779 | } |
---|
780 | TComPicYuv *pPicYuv=(ipCSC==IPCOLOURSPACE_UNCHANGED) ? pPicYuvUser : &cPicYuvCSCd; |
---|
781 | |
---|
782 | // compute actual YUV frame size excluding padding size |
---|
783 | const Int iStride444 = pPicYuv->getStride(COMPONENT_Y); |
---|
784 | const UInt width444 = pPicYuv->getWidth(COMPONENT_Y) - confLeft - confRight; |
---|
785 | const UInt height444 = pPicYuv->getHeight(COMPONENT_Y) - confTop - confBottom; |
---|
786 | Bool is16bit = false; |
---|
787 | Bool nonZeroBitDepthShift=false; |
---|
788 | |
---|
789 | if ((width444 == 0) || (height444 == 0)) |
---|
790 | { |
---|
791 | printf ("\nWarning: writing %d x %d luma sample output picture!", width444, height444); |
---|
792 | } |
---|
793 | |
---|
794 | for(UInt ch=0; ch<MAX_NUM_CHANNEL_TYPE; ch++) |
---|
795 | { |
---|
796 | if (m_fileBitdepth[ch] > 8) |
---|
797 | { |
---|
798 | is16bit=true; |
---|
799 | } |
---|
800 | if (m_bitdepthShift[ch] != 0) |
---|
801 | { |
---|
802 | nonZeroBitDepthShift=true; |
---|
803 | } |
---|
804 | } |
---|
805 | |
---|
806 | TComPicYuv *dstPicYuv = NULL; |
---|
807 | Bool retval = true; |
---|
808 | if (format>=NUM_CHROMA_FORMAT) |
---|
809 | { |
---|
810 | format=pPicYuv->getChromaFormat(); |
---|
811 | } |
---|
812 | |
---|
813 | if (nonZeroBitDepthShift) |
---|
814 | { |
---|
815 | dstPicYuv = new TComPicYuv; |
---|
816 | dstPicYuv->create( pPicYuv->getWidth(COMPONENT_Y), pPicYuv->getHeight(COMPONENT_Y), pPicYuv->getChromaFormat(), 1, 1, 0 ); |
---|
817 | pPicYuv->copyToPic(dstPicYuv); |
---|
818 | |
---|
819 | for(UInt comp=0; comp<dstPicYuv->getNumberValidComponents(); comp++) |
---|
820 | { |
---|
821 | const ComponentID compID=ComponentID(comp); |
---|
822 | const ChannelType ch=toChannelType(compID); |
---|
823 | #if !CLIP_TO_709_RANGE |
---|
824 | const Pel minval = 0; |
---|
825 | const Pel maxval = (1 << m_MSBExtendedBitDepth[ch]) - 1; |
---|
826 | #else |
---|
827 | const Bool b709Compliance=(-m_bitdepthShift[ch] < 0 && m_MSBExtendedBitDepth[ch] >= 8); /* ITU-R BT.709 compliant clipping for converting say 10b to 8b */ |
---|
828 | const Pel minval = b709Compliance? (( 1 << (m_MSBExtendedBitDepth[ch] - 8)) ) : 0; |
---|
829 | const Pel maxval = b709Compliance? ((0xff << (m_MSBExtendedBitDepth[ch] - 8)) -1) : (1 << m_MSBExtendedBitDepth[ch]) - 1; |
---|
830 | #endif |
---|
831 | |
---|
832 | scalePlane(dstPicYuv->getAddr(compID), dstPicYuv->getStride(compID), dstPicYuv->getWidth(compID), dstPicYuv->getHeight(compID), -m_bitdepthShift[ch], minval, maxval); |
---|
833 | } |
---|
834 | } |
---|
835 | else |
---|
836 | { |
---|
837 | dstPicYuv = pPicYuv; |
---|
838 | } |
---|
839 | |
---|
840 | for(UInt comp=0; retval && comp<dstPicYuv->getNumberValidComponents(); comp++) |
---|
841 | { |
---|
842 | const ComponentID compID = ComponentID(comp); |
---|
843 | const ChannelType ch=toChannelType(compID); |
---|
844 | const UInt csx = pPicYuv->getComponentScaleX(compID); |
---|
845 | const UInt csy = pPicYuv->getComponentScaleY(compID); |
---|
846 | const Int planeOffset = (confLeft>>csx) + (confTop>>csy) * pPicYuv->getStride(compID); |
---|
847 | if (! writePlane(m_cHandle, dstPicYuv->getAddr(compID) + planeOffset, is16bit, iStride444, width444, height444, compID, dstPicYuv->getChromaFormat(), format, m_fileBitdepth[ch])) |
---|
848 | { |
---|
849 | retval=false; |
---|
850 | } |
---|
851 | } |
---|
852 | |
---|
853 | if (nonZeroBitDepthShift) |
---|
854 | { |
---|
855 | dstPicYuv->destroy(); |
---|
856 | delete dstPicYuv; |
---|
857 | } |
---|
858 | |
---|
859 | cPicYuvCSCd.destroy(); |
---|
860 | |
---|
861 | return retval; |
---|
862 | } |
---|
863 | |
---|
864 | Bool TVideoIOYuv::write( TComPicYuv* pPicYuvUserTop, TComPicYuv* pPicYuvUserBottom, const InputColourSpaceConversion ipCSC, Int confLeft, Int confRight, Int confTop, Int confBottom, ChromaFormat format, const Bool isTff ) |
---|
865 | { |
---|
866 | |
---|
867 | TComPicYuv cPicYuvTopCSCd; |
---|
868 | TComPicYuv cPicYuvBottomCSCd; |
---|
869 | if (ipCSC!=IPCOLOURSPACE_UNCHANGED) |
---|
870 | { |
---|
871 | cPicYuvTopCSCd .create(pPicYuvUserTop ->getWidth(COMPONENT_Y), pPicYuvUserTop ->getHeight(COMPONENT_Y), pPicYuvUserTop ->getChromaFormat(), g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth); |
---|
872 | cPicYuvBottomCSCd.create(pPicYuvUserBottom->getWidth(COMPONENT_Y), pPicYuvUserBottom->getHeight(COMPONENT_Y), pPicYuvUserBottom->getChromaFormat(), g_uiMaxCUWidth, g_uiMaxCUHeight, g_uiMaxCUDepth); |
---|
873 | Int internalBitDepth[MAX_NUM_CHANNEL_TYPE]; |
---|
874 | for(UInt chType=0; chType<MAX_NUM_CHANNEL_TYPE; chType++) |
---|
875 | { |
---|
876 | internalBitDepth[chType] = m_bitdepthShift[chType] + m_MSBExtendedBitDepth[chType]; |
---|
877 | } |
---|
878 | ColourSpaceConvert(*pPicYuvUserTop, cPicYuvTopCSCd, ipCSC, internalBitDepth, false); |
---|
879 | ColourSpaceConvert(*pPicYuvUserBottom, cPicYuvBottomCSCd, ipCSC, internalBitDepth, false); |
---|
880 | } |
---|
881 | TComPicYuv *pPicYuvTop = (ipCSC==IPCOLOURSPACE_UNCHANGED) ? pPicYuvUserTop : &cPicYuvTopCSCd; |
---|
882 | TComPicYuv *pPicYuvBottom = (ipCSC==IPCOLOURSPACE_UNCHANGED) ? pPicYuvUserBottom : &cPicYuvBottomCSCd; |
---|
883 | |
---|
884 | Bool is16bit = false; |
---|
885 | Bool nonZeroBitDepthShift=false; |
---|
886 | |
---|
887 | for(UInt ch=0; ch<MAX_NUM_CHANNEL_TYPE; ch++) |
---|
888 | { |
---|
889 | if (m_fileBitdepth[ch] > 8) |
---|
890 | { |
---|
891 | is16bit=true; |
---|
892 | } |
---|
893 | if (m_bitdepthShift[ch] != 0) |
---|
894 | { |
---|
895 | nonZeroBitDepthShift=true; |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | TComPicYuv *dstPicYuvTop = NULL; |
---|
900 | TComPicYuv *dstPicYuvBottom = NULL; |
---|
901 | |
---|
902 | for (UInt field = 0; field < 2; field++) |
---|
903 | { |
---|
904 | TComPicYuv *pPicYuv = (field == 0) ? pPicYuvTop : pPicYuvBottom; |
---|
905 | |
---|
906 | if (format>=NUM_CHROMA_FORMAT) |
---|
907 | { |
---|
908 | format=pPicYuv->getChromaFormat(); |
---|
909 | } |
---|
910 | |
---|
911 | TComPicYuv* &dstPicYuv = (field == 0) ? dstPicYuvTop : dstPicYuvBottom; |
---|
912 | |
---|
913 | if (nonZeroBitDepthShift) |
---|
914 | { |
---|
915 | dstPicYuv = new TComPicYuv; |
---|
916 | dstPicYuv->create( pPicYuv->getWidth(COMPONENT_Y), pPicYuv->getHeight(COMPONENT_Y), pPicYuv->getChromaFormat(), 1, 1, 0 ); |
---|
917 | pPicYuv->copyToPic(dstPicYuv); |
---|
918 | |
---|
919 | for(UInt comp=0; comp<dstPicYuv->getNumberValidComponents(); comp++) |
---|
920 | { |
---|
921 | const ComponentID compID=ComponentID(comp); |
---|
922 | const ChannelType ch=toChannelType(compID); |
---|
923 | #if !CLIP_TO_709_RANGE |
---|
924 | const Pel minval = 0; |
---|
925 | const Pel maxval = (1 << m_MSBExtendedBitDepth[ch]) - 1; |
---|
926 | #else |
---|
927 | const Bool b709Compliance=(-m_bitdepthShift[ch] < 0 && m_MSBExtendedBitDepth[ch] >= 8); /* ITU-R BT.709 compliant clipping for converting say 10b to 8b */ |
---|
928 | const Pel minval = b709Compliance? (( 1 << (m_MSBExtendedBitDepth[ch] - 8)) ) : 0; |
---|
929 | const Pel maxval = b709Compliance? ((0xff << (m_MSBExtendedBitDepth[ch] - 8)) -1) : (1 << m_MSBExtendedBitDepth[ch]) - 1; |
---|
930 | #endif |
---|
931 | |
---|
932 | scalePlane(dstPicYuv->getAddr(compID), dstPicYuv->getStride(compID), dstPicYuv->getWidth(compID), dstPicYuv->getHeight(compID), -m_bitdepthShift[ch], minval, maxval); |
---|
933 | } |
---|
934 | } |
---|
935 | else |
---|
936 | { |
---|
937 | dstPicYuv = pPicYuv; |
---|
938 | } |
---|
939 | } |
---|
940 | |
---|
941 | Bool retval = true; |
---|
942 | |
---|
943 | assert(dstPicYuvTop->getNumberValidComponents() == dstPicYuvBottom->getNumberValidComponents()); |
---|
944 | assert(dstPicYuvTop->getChromaFormat() == dstPicYuvBottom->getChromaFormat() ); |
---|
945 | assert(dstPicYuvTop->getWidth(COMPONENT_Y) == dstPicYuvBottom->getWidth(COMPONENT_Y) ); |
---|
946 | assert(dstPicYuvTop->getHeight(COMPONENT_Y) == dstPicYuvBottom->getHeight(COMPONENT_Y) ); |
---|
947 | assert(dstPicYuvTop->getStride(COMPONENT_Y) == dstPicYuvBottom->getStride(COMPONENT_Y) ); |
---|
948 | |
---|
949 | for(UInt comp=0; retval && comp<dstPicYuvTop->getNumberValidComponents(); comp++) |
---|
950 | { |
---|
951 | const ComponentID compID = ComponentID(comp); |
---|
952 | const ChannelType ch=toChannelType(compID); |
---|
953 | |
---|
954 | assert(dstPicYuvTop->getComponentScaleX(compID) == dstPicYuvBottom->getComponentScaleX(compID)); |
---|
955 | assert(dstPicYuvTop->getComponentScaleY(compID) == dstPicYuvBottom->getComponentScaleY(compID)); |
---|
956 | assert(dstPicYuvTop->getStride (compID) == dstPicYuvBottom->getStride (compID)); |
---|
957 | |
---|
958 | const UInt width444 = dstPicYuvTop->getWidth(COMPONENT_Y) - (confLeft + confRight); |
---|
959 | const UInt height444 = dstPicYuvTop->getHeight(COMPONENT_Y) - (confTop + confBottom); |
---|
960 | |
---|
961 | if ((width444 == 0) || (height444 == 0)) |
---|
962 | { |
---|
963 | printf ("\nWarning: writing %d x %d luma sample output picture!", width444, height444); |
---|
964 | } |
---|
965 | |
---|
966 | const UInt csx = dstPicYuvTop->getComponentScaleX(compID); |
---|
967 | const UInt csy = dstPicYuvTop->getComponentScaleY(compID); |
---|
968 | const Int planeOffset = (confLeft>>csx) + ( confTop>>csy) * dstPicYuvTop->getStride(compID); //offset is for entire frame - round up for top field and down for bottom field |
---|
969 | |
---|
970 | if (! writeField(m_cHandle, |
---|
971 | (dstPicYuvTop ->getAddr(compID) + planeOffset), |
---|
972 | (dstPicYuvBottom->getAddr(compID) + planeOffset), |
---|
973 | is16bit, |
---|
974 | dstPicYuvTop->getStride(COMPONENT_Y), |
---|
975 | width444, height444, compID, dstPicYuvTop->getChromaFormat(), format, m_fileBitdepth[ch], isTff)) |
---|
976 | { |
---|
977 | retval=false; |
---|
978 | } |
---|
979 | } |
---|
980 | |
---|
981 | if (nonZeroBitDepthShift) |
---|
982 | { |
---|
983 | dstPicYuvTop->destroy(); |
---|
984 | dstPicYuvBottom->destroy(); |
---|
985 | delete dstPicYuvTop; |
---|
986 | delete dstPicYuvBottom; |
---|
987 | } |
---|
988 | |
---|
989 | cPicYuvTopCSCd.destroy(); |
---|
990 | cPicYuvBottomCSCd.destroy(); |
---|
991 | |
---|
992 | return retval; |
---|
993 | } |
---|
994 | |
---|
995 | static Void |
---|
996 | copyPlane(const TComPicYuv &src, const ComponentID srcPlane, TComPicYuv &dest, const ComponentID destPlane) |
---|
997 | { |
---|
998 | const UInt width=src.getWidth(srcPlane); |
---|
999 | const UInt height=src.getHeight(srcPlane); |
---|
1000 | assert(dest.getWidth(destPlane) == width); |
---|
1001 | assert(dest.getHeight(destPlane) == height); |
---|
1002 | const Pel *pSrc=src.getAddr(srcPlane); |
---|
1003 | Pel *pDest=dest.getAddr(destPlane); |
---|
1004 | const UInt strideSrc=src.getStride(srcPlane); |
---|
1005 | const UInt strideDest=dest.getStride(destPlane); |
---|
1006 | for(UInt y=0; y<height; y++, pSrc+=strideSrc, pDest+=strideDest) |
---|
1007 | { |
---|
1008 | memcpy(pDest, pSrc, width*sizeof(Pel)); |
---|
1009 | } |
---|
1010 | } |
---|
1011 | |
---|
1012 | // static member |
---|
1013 | Void TVideoIOYuv::ColourSpaceConvert(const TComPicYuv &src, TComPicYuv &dest, const InputColourSpaceConversion conversion, const Int bitDepths[MAX_NUM_CHANNEL_TYPE], Bool bIsForwards) |
---|
1014 | { |
---|
1015 | const ChromaFormat format=src.getChromaFormat(); |
---|
1016 | const UInt numValidComp=src.getNumberValidComponents(); |
---|
1017 | |
---|
1018 | switch (conversion) |
---|
1019 | { |
---|
1020 | case IPCOLOURSPACE_YCbCrtoYYY: |
---|
1021 | if (format!=CHROMA_444) |
---|
1022 | { |
---|
1023 | // only 444 is handled. |
---|
1024 | assert(format==CHROMA_444); |
---|
1025 | exit(1); |
---|
1026 | } |
---|
1027 | |
---|
1028 | { |
---|
1029 | for(UInt comp=0; comp<numValidComp; comp++) |
---|
1030 | { |
---|
1031 | copyPlane(src, ComponentID(bIsForwards?0:comp), dest, ComponentID(comp)); |
---|
1032 | } |
---|
1033 | } |
---|
1034 | break; |
---|
1035 | case IPCOLOURSPACE_YCbCrtoYCrCb: |
---|
1036 | { |
---|
1037 | for(UInt comp=0; comp<numValidComp; comp++) |
---|
1038 | { |
---|
1039 | copyPlane(src, ComponentID(comp), dest, ComponentID((numValidComp-comp)%numValidComp)); |
---|
1040 | } |
---|
1041 | } |
---|
1042 | break; |
---|
1043 | |
---|
1044 | case IPCOLOURSPACE_RGBtoGBR: |
---|
1045 | { |
---|
1046 | if (format!=CHROMA_444) |
---|
1047 | { |
---|
1048 | // only 444 is handled. |
---|
1049 | assert(format==CHROMA_444); |
---|
1050 | exit(1); |
---|
1051 | } |
---|
1052 | |
---|
1053 | // channel re-mapping |
---|
1054 | for(UInt comp=0; comp<numValidComp; comp++) |
---|
1055 | { |
---|
1056 | const ComponentID compIDsrc=ComponentID((comp+1)%numValidComp); |
---|
1057 | const ComponentID compIDdst=ComponentID(comp); |
---|
1058 | copyPlane(src, bIsForwards?compIDsrc:compIDdst, dest, bIsForwards?compIDdst:compIDsrc); |
---|
1059 | } |
---|
1060 | } |
---|
1061 | break; |
---|
1062 | |
---|
1063 | case IPCOLOURSPACE_UNCHANGED: |
---|
1064 | default: |
---|
1065 | { |
---|
1066 | for(UInt comp=0; comp<numValidComp; comp++) |
---|
1067 | { |
---|
1068 | copyPlane(src, ComponentID(comp), dest, ComponentID(comp)); |
---|
1069 | } |
---|
1070 | } |
---|
1071 | break; |
---|
1072 | } |
---|
1073 | } |
---|