rawIOyyy8.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  *
   3  * $Id$
   4  *
   5  * The MIT License
   6  *
   7  * Copyright (c) 2008 BBC Research
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a copy
  10  * of this software and associated documentation files (the "Software"), to deal
  11  * in the Software without restriction, including without limitation the rights
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  13  * copies of the Software, and to permit persons to whom the Software is
  14  * furnished to do so, subject to the following conditions:
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  16  * The above copyright notice and this permission notice shall be included in
  17  * all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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  24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25  * THE SOFTWARE.
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  27  * ***** END LICENSE BLOCK ***** */
  28
  29 #include <assert.h>
  30 #include "rawIOyyy8.h"
  31
  32 /* this could be improved by reading a larger chunk and then converting
  33  * the endianness suitably.  Reading / writing converts the chroma values
  34  * to offset binary ycbcr. */
  35 RawFrame& RawReaderYYY8::read(RawFrame &f)
  36 {
  37         assert(f.chroma == RawFrame::YOnly);
  38
  39         size_t linesRead;
  40         size_t lineLen = f.luma.width();
  41         unsigned char *inLine = new unsigned char[lineLen];
  42
  43         for (int y = 0; y < f.luma.height(); y++) {
  44
  45                 linesRead = fread(inLine, lineLen, 1, infile);
  46
  47                 for (int in=0, xy = 0; xy < f.luma.width(); in++, xy++) {
  48                         /* Y */
  49                         f.luma[y][xy] = inLine[in];
  50                 }
  51
  52                 if (linesRead < 1)
  53                         goto exit;
  54         }
  55
  56         exit:
  57
  58         //if (feof (infile))
  59         //   throw /* some eof/shortread exception */ ;
  60
  61         free(inLine);
  62         return f;
  63 }
  64
  65 RawFrame& RawReaderYYY8::read()
  66 {
  67         throw /* unknown framesize */;
  68 }
  69
  70 void RawWriterYYY8::write(const RawFrame& f) const
  71 {
  72    (void)f;
  73 }
  74