SpacesRecordDecompress alternative

gistfile1.c

bool SpacesRecordDecompress(SYNTRO_RECORD_HEADER *pSRH, unsigned char **pBuff, int bufLen, bool bRight)
{
    SYNTRO_RECORD_VIDEO *pSRV;
    Mat mJpeg;
    int size_required;
    bool result = false;

    switch (pSRH->nType)
    {
    case SYNTRO_RECORD_TYPE_VIDEO:
        pSRV = (SYNTRO_RECORD_VIDEO *)(pSRH);
        switch (pSRH->nSubType)
        {
        case SYNTRO_RECORD_TYPE_VIDEO_MJPEG:
            if (bRight)
            {
                Mat mImage(ConvertUC4ToInt(pSRV->nRightSize), 1, CV_8UC1,
                           (unsigned char *)(pSRV+1) + ConvertUC4ToInt(pSRV->nLeftSize));
                mJpeg = imdecode(mImage, 1);
            }
            else
            {
                Mat mImage(ConvertUC4ToInt(pSRV->nLeftSize), 1, CV_8UC1,
                           (unsigned char *)(pSRV+1));
                mJpeg = imdecode(mImage, 1);
            }

            size_required = mJpeg.rows * mJpeg.cols * 3;

            if (*pBuff) 
            {
                if (bufLen < size_required) 
                {
                    free(*pBuff);
                    *pBuff = NULL;
                }
            }

            if (!*pBuff) 
            {
                *pBuff = (unsigned char *)malloc(size_required);

                if (!*pBuff)
                    break;
            }

            memcpy(*pBuff, mJpeg.data, mJpeg.rows * mJpeg.cols * 3);
            result = true;
            break;
       }
   }

   return result;
}