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29 double m00 = in[0][0], m01 = in[0][1], m02 = in[0][2],
30 m10 = in[1][0], m11 = in[1][1], m12 = in[1][2],
31 m20 = in[2][0], m21 = in[2][1], m22 = in[2][2];
35 out[0][0] = (m11 * m22 - m21 * m12);
36 out[0][1] = -(m01 * m22 - m21 * m02);
37 out[0][2] = (m01 * m12 - m11 * m02);
38 out[1][0] = -(m10 * m22 - m20 * m12);
39 out[1][1] = (m00 * m22 - m20 * m02);
40 out[1][2] = -(m00 * m12 - m10 * m02);
41 out[2][0] = (m10 * m21 - m20 * m11);
42 out[2][1] = -(m00 * m21 - m20 * m01);
43 out[2][2] = (m00 * m11 - m10 * m01);
45 det = m00 *
out[0][0] + m10 *
out[0][1] + m20 *
out[0][2];
48 for (
i = 0;
i < 3;
i++) {
49 for (j = 0; j < 3; j++)
55 const double src1[3][3],
const double src2[3][3])
59 for (m = 0; m < 3; m++)
60 for (n = 0; n < 3; n++)
61 dst[m][n] = src2[m][0] *
src1[0][n] +
62 src2[m][1] *
src1[1][n] +
63 src2[m][2] *
src1[2][n];
72 double i[3][3], sr, sg, sb, zw;
74 rgb2xyz[0][0] = coeffs->
xr / coeffs->
yr;
75 rgb2xyz[0][1] = coeffs->
xg / coeffs->
yg;
76 rgb2xyz[0][2] = coeffs->
xb / coeffs->
yb;
77 rgb2xyz[1][0] = rgb2xyz[1][1] = rgb2xyz[1][2] = 1.0;
78 rgb2xyz[2][0] = (1.0 - coeffs->
xr - coeffs->
yr) / coeffs->
yr;
79 rgb2xyz[2][1] = (1.0 - coeffs->
xg - coeffs->
yg) / coeffs->
yg;
80 rgb2xyz[2][2] = (1.0 - coeffs->
xb - coeffs->
yb) / coeffs->
yb;
82 zw = 1.0 - wp->
xw - wp->
yw;
83 sr =
i[0][0] * wp->
xw +
i[0][1] * wp->
yw +
i[0][2] * zw;
84 sg =
i[1][0] * wp->
xw +
i[1][1] * wp->
yw +
i[1][2] * zw;
85 sb =
i[2][0] * wp->
xw +
i[2][1] * wp->
yw +
i[2][2] * zw;
99 { -0.25, 0.5, -0.25 },
144 double bscale, rscale;
147 if (coeffs->
cr == 0.25 && coeffs->
cg == 0.5 && coeffs->
cb == 0.25) {
150 }
else if (coeffs->
cr == 1 && coeffs->
cg == 1 && coeffs->
cb == 1) {
158 bscale = 0.5 / (coeffs->
cb - 1.0);
159 rscale = 0.5 / (coeffs->
cr - 1.0);
enum AVColorTransferCharacteristic color_trc
static const double gbr_matrix[3][3]
static const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB]
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
void ff_matrix_invert_3x3(const double in[3][3], double out[3][3])
static const double ycgco_matrix[3][3]
unsigned MaxCLL
Max content light level (cd/m^2).
This structure describes decoded (raw) audio or video data.
@ AVCOL_SPC_NB
Not part of ABI.
static const char rgb2yuv[]
double ff_determine_signal_peak(AVFrame *in)
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
@ AVCOL_SPC_BT2020_CL
ITU-R BT2020 constant luminance system.
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
const struct LumaCoefficients * ff_get_luma_coefficients(enum AVColorSpace csp)
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
void ff_fill_rgb2yuv_table(const struct LumaCoefficients *coeffs, double rgb2yuv[3][3])
static double av_q2d(AVRational a)
Convert an AVRational to a double.
void ff_matrix_mul_3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
void ff_fill_rgb2xyz_table(const struct PrimaryCoefficients *coeffs, const struct WhitepointCoefficients *wp, double rgb2xyz[3][3])
@ AV_FRAME_DATA_MASTERING_DISPLAY_METADATA
Mastering display metadata associated with a video frame.
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
void ff_update_hdr_metadata(AVFrame *in, double peak)
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
@ AV_FRAME_DATA_CONTENT_LIGHT_LEVEL
Content light level (based on CTA-861.3).
#define i(width, name, range_min, range_max)
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
AVColorSpace
YUV colorspace type.
AVRational av_d2q(double d, int max)
Convert a double precision floating point number to a rational.
@ AVCOL_SPC_FCC
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Structure to hold side data for an AVFrame.
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B