const int32_t Inverse_Table_6_9[8][4] = {
{117504, 138453, 13954, 34903}, /* no sequence_display_extension */
{117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
{104597, 132201, 25675, 53279}, /* unspecified */
{104597, 132201, 25675, 53279}, /* reserved */
{104448, 132798, 24759, 53109}, /* FCC */
{104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
{104597, 132201, 25675, 53279}, /* SMPTE 170M */
{117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
};
c_this->matrix_coefficients=6;
int crv = Inverse_Table_6_9[c_this->matrix_coefficients][0];
int cbu = Inverse_Table_6_9[c_this->matrix_coefficients][1];
int cgu = -Inverse_Table_6_9[c_this->matrix_coefficients][2];
int cgv = -Inverse_Table_6_9[c_this->matrix_coefficients][3];
表中的{104597, 132201, 25675, 53279}, /* SMPTE 170M */这组参数是什么意思？怎么使用？有人知道吗？和yuv转RGB公式如何对应上？
谢谢了～～
