msvqencode.c

spiht for linux this is used to decod and encode vedio i wich all enjoy

/*
 *
 * QccPack: Quantization, compression, and coding utilities
 * Copyright (C) 1997-2009  James E. Fowler
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#include "msvqencode.h"

#define USG_STRING "%s:datfile %s:codebookfile %s:channelfile"


QccDataset Datfile;
QccVQMultiStageCodebook MultiStageCodebook;
QccChannel Channel;


int main(int argc, char *argv[])
{
  int num_blocks;
  int block_size;
  int block;
  int stage;
  int num_stages;

  QccInit(argc, argv);
  
  QccDatasetInitialize(&Datfile);
  QccChannelInitialize(&Channel);
  QccVQMultiStageCodebookInitialize(&MultiStageCodebook);

  if (QccParseParameters(argc, argv,
                         USG_STRING,
                         Datfile.filename,
                         MultiStageCodebook.filename,
                         Channel.filename))
    QccErrorExit();
  
  Datfile.access_block_size = 1;
  if (QccDatasetStartRead(&Datfile))
    {
      QccErrorAddMessage("%s: Error calling QccDatasetStartRead()",
                         argv[0]);
      QccErrorExit();
    }
  
  if (QccVQMultiStageCodebookRead(&MultiStageCodebook))
    {
      QccErrorAddMessage("%s: Error calling QccVQMultiStageCodebookRead()",
                         argv[0]);
      QccErrorExit();
    }
  
  num_stages = MultiStageCodebook.num_codebooks;

  for (stage = 0; stage < num_stages; stage++)
    if (MultiStageCodebook.codebooks[stage].codeword_dimension !=
        Datfile.vector_dimension)
      {
        QccErrorAddMessage("%s: Vector dimensions all codebooks must be the same as that of dataset\n",
                           argv[0]);
        QccErrorExit();
      }
  
  block_size = QccDatasetGetBlockSize(&Datfile);
  num_blocks = Datfile.num_vectors / block_size;
  
  Channel.channel_length = num_blocks * block_size * num_stages;
  Channel.access_block_size = Datfile.access_block_size * num_stages;
  Channel.alphabet_size = -MAXINT;
  for (stage = 0; stage < num_stages; stage++)
    if (Channel.alphabet_size <
        MultiStageCodebook.codebooks[stage].num_codewords)
      Channel.alphabet_size =
        MultiStageCodebook.codebooks[stage].num_codewords;

  if (QccChannelStartWrite(&Channel))
    {
      QccErrorAddMessage("%s: Error calling QccChannelStartWrite()",
                         argv[0]);
      QccErrorExit();
    }
  
  for (block = 0; block < num_blocks; block++)
    {
      if (QccDatasetReadBlock(&Datfile))
        {
          QccErrorAddMessage("%s: Error calling QccDatasetReadBlock()",
                             argv[0]);
          QccErrorExit();
        }

      if (QccVQMultiStageVQEncode(&Datfile,
                                  &MultiStageCodebook,
                                  Channel.channel_symbols,
                                  NULL))
        {
          QccErrorAddMessage("%s: Error calling QccVQMultiStageVQEncode()",
                             argv[0]);
          QccErrorExit();
        }

      if (QccChannelWriteBlock(&Channel))
        {
          QccErrorAddMessage("%s: Error calling QccChannelWriteBlock()",
                             argv[0]);
          QccErrorExit();
        }
    }
  
  if (QccDatasetEndRead(&Datfile))
    {
      QccErrorAddMessage("%s: Error calling QccDatasetEndRead()",
                         argv[0]);
      QccErrorExit();
    }

  if (QccChannelEndWrite(&Channel))
    {
      QccErrorAddMessage("%s: Error calling QccChannelEndWrite()",
                         argv[0]);
      QccErrorExit();
    }

  QccExit;
}