C++ (Cpp) OPJ_IS_PART2示例

示例#1

文件： openjpeg.c 项目： DCPTools/openjpeg2-cdist

OPJ_BOOL OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,
                                  OPJ_FLOAT32 * pEncodingMatrix,
                                  OPJ_INT32 * p_dc_shift, OPJ_UINT32 pNbComp)
{
    OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * (OPJ_UINT32)sizeof(OPJ_FLOAT32);
    OPJ_UINT32 l_dc_shift_size = pNbComp * (OPJ_UINT32)sizeof(OPJ_INT32);
    OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;

    /* add MCT capability */
    if (OPJ_IS_PART2(parameters->rsiz)) {
        parameters->rsiz |= OPJ_EXTENSION_MCT;
    } else {
        parameters->rsiz = ((OPJ_PROFILE_PART2) | (OPJ_EXTENSION_MCT));
    }
    parameters->irreversible = 1;

    /* use array based MCT */
    parameters->tcp_mct = 2;
    parameters->mct_data = opj_malloc(l_mct_total_size);
    if (! parameters->mct_data) {
        return OPJ_FALSE;
    }

    memcpy(parameters->mct_data, pEncodingMatrix, l_matrix_size);
    memcpy(((OPJ_BYTE *) parameters->mct_data) +  l_matrix_size, p_dc_shift,
           l_dc_shift_size);

    return OPJ_TRUE;
}

示例#2

文件： openjpeg.cpp 项目： fvpolpeta/grok

bool OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,
                              float * pEncodingMatrix,
                              int32_t * p_dc_shift,uint32_t pNbComp)
{
    uint32_t l_matrix_size = pNbComp * pNbComp * (uint32_t)sizeof(float);
    uint32_t l_dc_shift_size = pNbComp * (uint32_t)sizeof(int32_t);
    uint32_t l_mct_total_size = l_matrix_size + l_dc_shift_size;

    /* add MCT capability */
    if (OPJ_IS_PART2(parameters->rsiz)) {
        parameters->rsiz |= OPJ_EXTENSION_MCT;
    } else {
        parameters->rsiz = ((OPJ_PROFILE_PART2) | (OPJ_EXTENSION_MCT));
    }
    parameters->irreversible = 1;

    /* use array based MCT */
    parameters->tcp_mct = 2;
    parameters->mct_data = opj_malloc(l_mct_total_size);
    if (! parameters->mct_data) {
        return false;
    }

    memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
    memcpy(((uint8_t *) parameters->mct_data) +  l_matrix_size,p_dc_shift,l_dc_shift_size);

    return true;
}