GstVideoColorPrimariesInfo

Structure describing the chromaticity coordinates of an RGB system. These values can be used to construct a matrix to transform RGB to and from the XYZ colorspace.

Members

Wx (gdouble) –

reference white x coordinate

Wy (gdouble) –

reference white y coordinate

Rx (gdouble) –

red x coordinate

Ry (gdouble) –

red y coordinate

Gx (gdouble) –

green x coordinate

Gy (gdouble) –

green y coordinate

Bx (gdouble) –

blue x coordinate

By (gdouble) –

blue y coordinate


GstVideo.VideoColorPrimariesInfo

Structure describing the chromaticity coordinates of an RGB system. These values can be used to construct a matrix to transform RGB to and from the XYZ colorspace.

Members

Wx (Number) –

reference white x coordinate

Wy (Number) –

reference white y coordinate

Rx (Number) –

red x coordinate

Ry (Number) –

red y coordinate

Gx (Number) –

green x coordinate

Gy (Number) –

green y coordinate

Bx (Number) –

blue x coordinate

By (Number) –

blue y coordinate


GstVideo.VideoColorPrimariesInfo

Structure describing the chromaticity coordinates of an RGB system. These values can be used to construct a matrix to transform RGB to and from the XYZ colorspace.

Members

Wx (float) –

reference white x coordinate

Wy (float) –

reference white y coordinate

Rx (float) –

red x coordinate

Ry (float) –

red y coordinate

Gx (float) –

green x coordinate

Gy (float) –

green y coordinate

Bx (float) –

blue x coordinate

By (float) –

blue y coordinate


GstVideoColorimetry

Structure describing the color info.

Members

range (GstVideoColorRange) –

the color range. This is the valid range for the samples. It is used to convert the samples to Y'PbPr values.

matrix (GstVideoColorMatrix) –

the color matrix. Used to convert between Y'PbPr and non-linear RGB (R'G'B')

transfer (GstVideoTransferFunction) –

the transfer function. used to convert between R'G'B' and RGB

primaries (GstVideoColorPrimaries) –

color primaries. used to convert between R'G'B' and CIE XYZ


GstVideo.VideoColorimetry

Structure describing the color info.

Members

the color range. This is the valid range for the samples. It is used to convert the samples to Y'PbPr values.

the color matrix. Used to convert between Y'PbPr and non-linear RGB (R'G'B')

the transfer function. used to convert between R'G'B' and RGB

color primaries. used to convert between R'G'B' and CIE XYZ


GstVideo.VideoColorimetry

Structure describing the color info.

Members

the color range. This is the valid range for the samples. It is used to convert the samples to Y'PbPr values.

the color matrix. Used to convert between Y'PbPr and non-linear RGB (R'G'B')

the transfer function. used to convert between R'G'B' and RGB

color primaries. used to convert between R'G'B' and CIE XYZ


Methods

gst_video_colorimetry_from_string

gboolean
gst_video_colorimetry_from_string (GstVideoColorimetry * cinfo,
                                   const gchar * color)

Parse the colorimetry string and update cinfo with the parsed values.

Parameters:

cinfo

a GstVideoColorimetry

color

a colorimetry string

Returns

TRUE if color points to valid colorimetry info.


GstVideo.VideoColorimetry.prototype.from_string

function GstVideo.VideoColorimetry.prototype.from_string(color: String): {
    // javascript wrapper for 'gst_video_colorimetry_from_string'
}

Parse the colorimetry string and update cinfo with the parsed values.

Parameters:

color (String)

a colorimetry string

Returns (Number)

true if color points to valid colorimetry info.


GstVideo.VideoColorimetry.from_string

def GstVideo.VideoColorimetry.from_string (self, color):
    #python wrapper for 'gst_video_colorimetry_from_string'

Parse the colorimetry string and update cinfo with the parsed values.

Parameters:

color (str)

a colorimetry string

Returns (bool)

True if color points to valid colorimetry info.


gst_video_colorimetry_is_equal

gboolean
gst_video_colorimetry_is_equal (const GstVideoColorimetry * cinfo,
                                const GstVideoColorimetry * other)

Compare the 2 colorimetry sets for equality

Parameters:

cinfo

a GstVideoColorimetry

other

another GstVideoColorimetry

Returns

TRUE if cinfo and other are equal.

Since : 1.6


GstVideo.VideoColorimetry.prototype.is_equal

function GstVideo.VideoColorimetry.prototype.is_equal(other: GstVideo.VideoColorimetry): {
    // javascript wrapper for 'gst_video_colorimetry_is_equal'
}

Compare the 2 colorimetry sets for equality

Returns (Number)

true if cinfo and other are equal.

Since : 1.6


GstVideo.VideoColorimetry.is_equal

def GstVideo.VideoColorimetry.is_equal (self, other):
    #python wrapper for 'gst_video_colorimetry_is_equal'

Compare the 2 colorimetry sets for equality

Returns (bool)

True if cinfo and other are equal.

Since : 1.6


gst_video_colorimetry_is_equivalent

gboolean
gst_video_colorimetry_is_equivalent (const GstVideoColorimetry * cinfo,
                                     guint bitdepth,
                                     const GstVideoColorimetry * other,
                                     guint other_bitdepth)

Compare the 2 colorimetry sets for functionally equality

Parameters:

cinfo

a GstVideoColorimetry

bitdepth

bitdepth of a format associated with cinfo

other

another GstVideoColorimetry

other_bitdepth

bitdepth of a format associated with other

Returns

TRUE if cinfo and other are equivalent.

Since : 1.22


GstVideo.VideoColorimetry.prototype.is_equivalent

function GstVideo.VideoColorimetry.prototype.is_equivalent(bitdepth: Number, other: GstVideo.VideoColorimetry, other_bitdepth: Number): {
    // javascript wrapper for 'gst_video_colorimetry_is_equivalent'
}

Compare the 2 colorimetry sets for functionally equality

Parameters:

bitdepth (Number)

bitdepth of a format associated with cinfo

other_bitdepth (Number)

bitdepth of a format associated with other

Returns (Number)

true if cinfo and other are equivalent.

Since : 1.22


GstVideo.VideoColorimetry.is_equivalent

def GstVideo.VideoColorimetry.is_equivalent (self, bitdepth, other, other_bitdepth):
    #python wrapper for 'gst_video_colorimetry_is_equivalent'

Compare the 2 colorimetry sets for functionally equality

Parameters:

bitdepth (int)

bitdepth of a format associated with cinfo

other_bitdepth (int)

bitdepth of a format associated with other

Returns (bool)

True if cinfo and other are equivalent.

Since : 1.22


gst_video_colorimetry_matches

gboolean
gst_video_colorimetry_matches (const GstVideoColorimetry * cinfo,
                               const gchar * color)

Check if the colorimetry information in info matches that of the string color.

Parameters:

cinfo

a GstVideoInfo

color

a colorimetry string

Returns

TRUE if color conveys the same colorimetry info as the color information in info.


GstVideo.VideoColorimetry.prototype.matches

function GstVideo.VideoColorimetry.prototype.matches(color: String): {
    // javascript wrapper for 'gst_video_colorimetry_matches'
}

Check if the colorimetry information in info matches that of the string color.

Parameters:

color (String)

a colorimetry string

Returns (Number)

true if color conveys the same colorimetry info as the color information in info.


GstVideo.VideoColorimetry.matches

def GstVideo.VideoColorimetry.matches (self, color):
    #python wrapper for 'gst_video_colorimetry_matches'

Check if the colorimetry information in info matches that of the string color.

Parameters:

color (str)

a colorimetry string

Returns (bool)

True if color conveys the same colorimetry info as the color information in info.


gst_video_colorimetry_to_string

gchar *
gst_video_colorimetry_to_string (const GstVideoColorimetry * cinfo)

Make a string representation of cinfo.

Parameters:

cinfo

a GstVideoColorimetry

Returns ( [transfer: full][nullable])

a string representation of cinfo or NULL if all the entries of cinfo are unknown values.


GstVideo.VideoColorimetry.prototype.to_string

function GstVideo.VideoColorimetry.prototype.to_string(): {
    // javascript wrapper for 'gst_video_colorimetry_to_string'
}

Make a string representation of cinfo.

Returns (String)

a string representation of cinfo or null if all the entries of cinfo are unknown values.


GstVideo.VideoColorimetry.to_string

def GstVideo.VideoColorimetry.to_string (self):
    #python wrapper for 'gst_video_colorimetry_to_string'

Make a string representation of cinfo.

Returns (str)

a string representation of cinfo or None if all the entries of cinfo are unknown values.


Functions

gst_video_color_matrix_from_iso

GstVideoColorMatrix
gst_video_color_matrix_from_iso (guint value)

Converts the value to the GstVideoColorMatrix The matrix coefficients (MatrixCoefficients) value is defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Parameters:

value

a ITU-T H.273 matrix coefficients value

Returns

the matched GstVideoColorMatrix

Since : 1.18


GstVideo.VideoColorMatrix.prototype.from_iso

function GstVideo.VideoColorMatrix.prototype.from_iso(value: Number): {
    // javascript wrapper for 'gst_video_color_matrix_from_iso'
}

Converts the value to the GstVideo.VideoColorMatrix The matrix coefficients (MatrixCoefficients) value is defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Parameters:

value (Number)

a ITU-T H.273 matrix coefficients value

Since : 1.18


GstVideo.VideoColorMatrix.from_iso

def GstVideo.VideoColorMatrix.from_iso (value):
    #python wrapper for 'gst_video_color_matrix_from_iso'

Converts the value to the GstVideo.VideoColorMatrix The matrix coefficients (MatrixCoefficients) value is defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Parameters:

value (int)

a ITU-T H.273 matrix coefficients value

Since : 1.18


gst_video_color_matrix_get_Kr_Kb

gboolean
gst_video_color_matrix_get_Kr_Kb (GstVideoColorMatrix matrix,
                                  gdouble * Kr,
                                  gdouble * Kb)

Get the coefficients used to convert between Y'PbPr and R'G'B' using matrix.

When:

   0.0 <= [Y',R',G',B'] <= 1.0)
   (-0.5 <= [Pb,Pr] <= 0.5)

the general conversion is given by:

   Y' = Kr*R' + (1-Kr-Kb)*G' + Kb*B'
   Pb = (B'-Y')/(2*(1-Kb))
   Pr = (R'-Y')/(2*(1-Kr))

and the other way around:

   R' = Y' + Cr*2*(1-Kr)
   G' = Y' - Cb*2*(1-Kb)*Kb/(1-Kr-Kb) - Cr*2*(1-Kr)*Kr/(1-Kr-Kb)
   B' = Y' + Cb*2*(1-Kb)

Parameters:

matrix

a GstVideoColorMatrix

Kr ( [out])

result red channel coefficient

Kb ( [out])

result blue channel coefficient

Returns

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Since : 1.6


GstVideo.VideoColorMatrix.prototype.get_Kr_Kb

function GstVideo.VideoColorMatrix.prototype.get_Kr_Kb(matrix: GstVideo.VideoColorMatrix): {
    // javascript wrapper for 'gst_video_color_matrix_get_Kr_Kb'
}

Get the coefficients used to convert between Y'PbPr and R'G'B' using matrix.

When:

   0.0 <= [Y',R',G',B'] <= 1.0)
   (-0.5 <= [Pb,Pr] <= 0.5)

the general conversion is given by:

   Y' = Kr*R' + (1-Kr-Kb)*G' + Kb*B'
   Pb = (B'-Y')/(2*(1-Kb))
   Pr = (R'-Y')/(2*(1-Kr))

and the other way around:

   R' = Y' + Cr*2*(1-Kr)
   G' = Y' - Cb*2*(1-Kb)*Kb/(1-Kr-Kb) - Cr*2*(1-Kr)*Kr/(1-Kr-Kb)
   B' = Y' + Cb*2*(1-Kb)

Returns a tuple made of:

(Number )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Kr (Number )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Kb (Number )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Since : 1.6


GstVideo.VideoColorMatrix.get_Kr_Kb

def GstVideo.VideoColorMatrix.get_Kr_Kb (matrix):
    #python wrapper for 'gst_video_color_matrix_get_Kr_Kb'

Get the coefficients used to convert between Y'PbPr and R'G'B' using matrix.

When:

   0.0 <= [Y',R',G',B'] <= 1.0)
   (-0.5 <= [Pb,Pr] <= 0.5)

the general conversion is given by:

   Y' = Kr*R' + (1-Kr-Kb)*G' + Kb*B'
   Pb = (B'-Y')/(2*(1-Kb))
   Pr = (R'-Y')/(2*(1-Kr))

and the other way around:

   R' = Y' + Cr*2*(1-Kr)
   G' = Y' - Cb*2*(1-Kb)*Kb/(1-Kr-Kb) - Cr*2*(1-Kr)*Kr/(1-Kr-Kb)
   B' = Y' + Cb*2*(1-Kb)

Returns a tuple made of:

(bool )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Kr (float )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Kb (float )

TRUE if matrix was a YUV color format and Kr and Kb contain valid values.

Since : 1.6


gst_video_color_matrix_to_iso

guint
gst_video_color_matrix_to_iso (GstVideoColorMatrix matrix)

Converts GstVideoColorMatrix to the "matrix coefficients" (MatrixCoefficients) value defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Parameters:

matrix

a GstVideoColorMatrix

Returns

The value of ISO/IEC 23001-8 matrix coefficients.

Since : 1.18


GstVideo.VideoColorMatrix.prototype.to_iso

function GstVideo.VideoColorMatrix.prototype.to_iso(matrix: GstVideo.VideoColorMatrix): {
    // javascript wrapper for 'gst_video_color_matrix_to_iso'
}

Converts GstVideo.VideoColorMatrix to the "matrix coefficients" (MatrixCoefficients) value defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Returns (Number)

The value of ISO/IEC 23001-8 matrix coefficients.

Since : 1.18


GstVideo.VideoColorMatrix.to_iso

def GstVideo.VideoColorMatrix.to_iso (matrix):
    #python wrapper for 'gst_video_color_matrix_to_iso'

Converts GstVideo.VideoColorMatrix to the "matrix coefficients" (MatrixCoefficients) value defined by "ISO/IEC 23001-8 Section 7.3 Table 4" and "ITU-T H.273 Table 4". "H.264 Table E-5" and "H.265 Table E.5" share the identical values.

Returns (int)

The value of ISO/IEC 23001-8 matrix coefficients.

Since : 1.18


gst_video_color_primaries_from_iso

GstVideoColorPrimaries
gst_video_color_primaries_from_iso (guint value)

Converts the value to the GstVideoColorPrimaries The colour primaries (ColourPrimaries) value is defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Parameters:

value

a ITU-T H.273 colour primaries value

Returns

the matched GstVideoColorPrimaries

Since : 1.18


GstVideo.VideoColorPrimaries.prototype.from_iso

function GstVideo.VideoColorPrimaries.prototype.from_iso(value: Number): {
    // javascript wrapper for 'gst_video_color_primaries_from_iso'
}

Converts the value to the GstVideo.VideoColorPrimaries The colour primaries (ColourPrimaries) value is defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Parameters:

value (Number)

a ITU-T H.273 colour primaries value

Since : 1.18


GstVideo.VideoColorPrimaries.from_iso

def GstVideo.VideoColorPrimaries.from_iso (value):
    #python wrapper for 'gst_video_color_primaries_from_iso'

Converts the value to the GstVideo.VideoColorPrimaries The colour primaries (ColourPrimaries) value is defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Parameters:

value (int)

a ITU-T H.273 colour primaries value

Since : 1.18


gst_video_color_primaries_get_info

const GstVideoColorPrimariesInfo *
gst_video_color_primaries_get_info (GstVideoColorPrimaries primaries)

Get information about the chromaticity coordinates of primaries.

Parameters:

primaries

a GstVideoColorPrimaries

Returns

a GstVideoColorPrimariesInfo for primaries.

Since : 1.6


GstVideo.VideoColorPrimaries.prototype.get_info

function GstVideo.VideoColorPrimaries.prototype.get_info(primaries: GstVideo.VideoColorPrimaries): {
    // javascript wrapper for 'gst_video_color_primaries_get_info'
}

Get information about the chromaticity coordinates of primaries.

Since : 1.6


GstVideo.VideoColorPrimaries.get_info

def GstVideo.VideoColorPrimaries.get_info (primaries):
    #python wrapper for 'gst_video_color_primaries_get_info'

Get information about the chromaticity coordinates of primaries.

Since : 1.6


gst_video_color_primaries_is_equivalent

gboolean
gst_video_color_primaries_is_equivalent (GstVideoColorPrimaries primaries,
                                         GstVideoColorPrimaries other)

Checks whether primaries and other are functionally equivalent

Parameters:

primaries

a GstVideoColorPrimaries

other

another GstVideoColorPrimaries

Returns

TRUE if primaries and other can be considered equivalent.

Since : 1.22


GstVideo.VideoColorPrimaries.prototype.is_equivalent

function GstVideo.VideoColorPrimaries.prototype.is_equivalent(primaries: GstVideo.VideoColorPrimaries, other: GstVideo.VideoColorPrimaries): {
    // javascript wrapper for 'gst_video_color_primaries_is_equivalent'
}

Checks whether primaries and other are functionally equivalent

Returns (Number)

TRUE if primaries and other can be considered equivalent.

Since : 1.22


GstVideo.VideoColorPrimaries.is_equivalent

def GstVideo.VideoColorPrimaries.is_equivalent (primaries, other):
    #python wrapper for 'gst_video_color_primaries_is_equivalent'

Checks whether primaries and other are functionally equivalent

Returns (bool)

TRUE if primaries and other can be considered equivalent.

Since : 1.22


gst_video_color_primaries_to_iso

guint
gst_video_color_primaries_to_iso (GstVideoColorPrimaries primaries)

Converts GstVideoColorPrimaries to the "colour primaries" (ColourPrimaries) value defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Parameters:

primaries

a GstVideoColorPrimaries

Returns

The value of ISO/IEC 23001-8 colour primaries.

Since : 1.18


GstVideo.VideoColorPrimaries.prototype.to_iso

function GstVideo.VideoColorPrimaries.prototype.to_iso(primaries: GstVideo.VideoColorPrimaries): {
    // javascript wrapper for 'gst_video_color_primaries_to_iso'
}

Converts GstVideo.VideoColorPrimaries to the "colour primaries" (ColourPrimaries) value defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Returns (Number)

The value of ISO/IEC 23001-8 colour primaries.

Since : 1.18


GstVideo.VideoColorPrimaries.to_iso

def GstVideo.VideoColorPrimaries.to_iso (primaries):
    #python wrapper for 'gst_video_color_primaries_to_iso'

Converts GstVideo.VideoColorPrimaries to the "colour primaries" (ColourPrimaries) value defined by "ISO/IEC 23001-8 Section 7.1 Table 2" and "ITU-T H.273 Table 2". "H.264 Table E-3" and "H.265 Table E.3" share the identical values.

Returns (int)

The value of ISO/IEC 23001-8 colour primaries.

Since : 1.18


gst_video_color_range_offsets

gst_video_color_range_offsets (GstVideoColorRange range,
                               const GstVideoFormatInfo * info,
                               gint * offset,
                               gint * scale)

Compute the offset and scale values for each component of info. For each component, (c[i] - offset[i]) / scale[i] will scale the component c[i] to the range [0.0 .. 1.0].

The reverse operation (c[i] * scale[i]) + offset[i] can be used to convert the component values in range [0.0 .. 1.0] back to their representation in info and range.

Parameters:

range

a GstVideoColorRange

info

a GstVideoFormatInfo

offset ( [out][arrayfixed-size=4])

output offsets

scale ( [out][arrayfixed-size=4])

output scale


GstVideo.VideoColorRange.prototype.offsets

function GstVideo.VideoColorRange.prototype.offsets(range: GstVideo.VideoColorRange, info: GstVideo.VideoFormatInfo): {
    // javascript wrapper for 'gst_video_color_range_offsets'
}

Compute the offset and scale values for each component of info. For each component, (c[i] - offset[i]) / scale[i] will scale the component c[i] to the range [0.0 .. 1.0].

The reverse operation (c[i] * scale[i]) + offset[i] can be used to convert the component values in range [0.0 .. 1.0] back to their representation in info and range.


GstVideo.VideoColorRange.offsets

def GstVideo.VideoColorRange.offsets (range, info):
    #python wrapper for 'gst_video_color_range_offsets'

Compute the offset and scale values for each component of info. For each component, (c[i] - offset[i]) / scale[i] will scale the component c[i] to the range [0.0 .. 1.0].

The reverse operation (c[i] * scale[i]) + offset[i] can be used to convert the component values in range [0.0 .. 1.0] back to their representation in info and range.


gst_video_color_transfer_decode

gdouble
gst_video_color_transfer_decode (GstVideoTransferFunction func,
                                 gdouble val)

Parameters:

val

a value

Returns
No description available

deprecated : 1.20: Use gst_video_transfer_function_decode() instead.

Since : 1.6


GstVideo.prototype.video_color_transfer_decode

function GstVideo.prototype.video_color_transfer_decode(func: GstVideo.VideoTransferFunction, val: Number): {
    // javascript wrapper for 'gst_video_color_transfer_decode'
}

Parameters:

val (Number)

a value

Returns (Number)
No description available

deprecated : 1.20: Use gst_video_transfer_function_decode() instead.

Since : 1.6


GstVideo.video_color_transfer_decode

def GstVideo.video_color_transfer_decode (func, val):
    #python wrapper for 'gst_video_color_transfer_decode'

Parameters:

val (float)

a value

Returns (float)
No description available

deprecated : 1.20: Use gst_video_transfer_function_decode() instead.

Since : 1.6


gst_video_color_transfer_encode

gdouble
gst_video_color_transfer_encode (GstVideoTransferFunction func,
                                 gdouble val)

Parameters:

val

a value

Returns
No description available

deprecated : 1.20: Use gst_video_transfer_function_encode() instead.

Since : 1.6


GstVideo.prototype.video_color_transfer_encode

function GstVideo.prototype.video_color_transfer_encode(func: GstVideo.VideoTransferFunction, val: Number): {
    // javascript wrapper for 'gst_video_color_transfer_encode'
}

Parameters:

val (Number)

a value

Returns (Number)
No description available

deprecated : 1.20: Use gst_video_transfer_function_encode() instead.

Since : 1.6


GstVideo.video_color_transfer_encode

def GstVideo.video_color_transfer_encode (func, val):
    #python wrapper for 'gst_video_color_transfer_encode'

Parameters:

val (float)

a value

Returns (float)
No description available

deprecated : 1.20: Use gst_video_transfer_function_encode() instead.

Since : 1.6


gst_video_transfer_function_decode

gdouble
gst_video_transfer_function_decode (GstVideoTransferFunction func,
                                    gdouble val)

Convert val to its gamma decoded value. This is the inverse operation of gst_video_color_transfer_encode.

For a non-linear value L' in the range [0..1], conversion to the linear L is in general performed with a power function like:

    L = L' ^ gamma

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val

a value

Returns

the gamma decoded value of val

Since : 1.20


GstVideo.VideoTransferFunction.prototype.decode

function GstVideo.VideoTransferFunction.prototype.decode(func: GstVideo.VideoTransferFunction, val: Number): {
    // javascript wrapper for 'gst_video_transfer_function_decode'
}

Convert val to its gamma decoded value. This is the inverse operation of GstVideo.prototype.video_color_transfer_encode.

For a non-linear value L' in the range [0..1], conversion to the linear L is in general performed with a power function like:

    L = L' ^ gamma

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val (Number)

a value

Returns (Number)

the gamma decoded value of val

Since : 1.20


GstVideo.VideoTransferFunction.decode

def GstVideo.VideoTransferFunction.decode (func, val):
    #python wrapper for 'gst_video_transfer_function_decode'

Convert val to its gamma decoded value. This is the inverse operation of GstVideo.video_color_transfer_encode.

For a non-linear value L' in the range [0..1], conversion to the linear L is in general performed with a power function like:

    L = L' ^ gamma

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val (float)

a value

Returns (float)

the gamma decoded value of val

Since : 1.20


gst_video_transfer_function_encode

gdouble
gst_video_transfer_function_encode (GstVideoTransferFunction func,
                                    gdouble val)

Convert val to its gamma encoded value.

For a linear value L in the range [0..1], conversion to the non-linear (gamma encoded) L' is in general performed with a power function like:

    L' = L ^ (1 / gamma)

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val

a value

Returns

the gamma encoded value of val

Since : 1.20


GstVideo.VideoTransferFunction.prototype.encode

function GstVideo.VideoTransferFunction.prototype.encode(func: GstVideo.VideoTransferFunction, val: Number): {
    // javascript wrapper for 'gst_video_transfer_function_encode'
}

Convert val to its gamma encoded value.

For a linear value L in the range [0..1], conversion to the non-linear (gamma encoded) L' is in general performed with a power function like:

    L' = L ^ (1 / gamma)

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val (Number)

a value

Returns (Number)

the gamma encoded value of val

Since : 1.20


GstVideo.VideoTransferFunction.encode

def GstVideo.VideoTransferFunction.encode (func, val):
    #python wrapper for 'gst_video_transfer_function_encode'

Convert val to its gamma encoded value.

For a linear value L in the range [0..1], conversion to the non-linear (gamma encoded) L' is in general performed with a power function like:

    L' = L ^ (1 / gamma)

Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.

Parameters:

val (float)

a value

Returns (float)

the gamma encoded value of val

Since : 1.20


gst_video_transfer_function_from_iso

GstVideoTransferFunction
gst_video_transfer_function_from_iso (guint value)

Converts the value to the GstVideoTransferFunction The transfer characteristics (TransferCharacteristics) value is defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Parameters:

value

a ITU-T H.273 transfer characteristics value

Returns

the matched GstVideoTransferFunction

Since : 1.18


GstVideo.VideoTransferFunction.prototype.from_iso

function GstVideo.VideoTransferFunction.prototype.from_iso(value: Number): {
    // javascript wrapper for 'gst_video_transfer_function_from_iso'
}

Converts the value to the GstVideo.VideoTransferFunction The transfer characteristics (TransferCharacteristics) value is defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Parameters:

value (Number)

a ITU-T H.273 transfer characteristics value

Since : 1.18


GstVideo.VideoTransferFunction.from_iso

def GstVideo.VideoTransferFunction.from_iso (value):
    #python wrapper for 'gst_video_transfer_function_from_iso'

Converts the value to the GstVideo.VideoTransferFunction The transfer characteristics (TransferCharacteristics) value is defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Parameters:

value (int)

a ITU-T H.273 transfer characteristics value

Since : 1.18


gst_video_transfer_function_is_equivalent

gboolean
gst_video_transfer_function_is_equivalent (GstVideoTransferFunction from_func,
                                           guint from_bpp,
                                           GstVideoTransferFunction to_func,
                                           guint to_bpp)

Returns whether from_func and to_func are equivalent. There are cases (e.g. BT601, BT709, and BT2020_10) where several functions are functionally identical. In these cases, when doing conversion, we should consider them as equivalent. Also, BT2020_12 is the same as the aforementioned three for less than 12 bits per pixel.

Parameters:

from_func

GstVideoTransferFunction to convert from

from_bpp

bits per pixel to convert from

to_func

GstVideoTransferFunction to convert into

to_bpp

bits per pixel to convert into

Returns

TRUE if from_func and to_func can be considered equivalent.

Since : 1.18


GstVideo.VideoTransferFunction.prototype.is_equivalent

function GstVideo.VideoTransferFunction.prototype.is_equivalent(from_func: GstVideo.VideoTransferFunction, from_bpp: Number, to_func: GstVideo.VideoTransferFunction, to_bpp: Number): {
    // javascript wrapper for 'gst_video_transfer_function_is_equivalent'
}

Returns whether from_func and to_func are equivalent. There are cases (e.g. BT601, BT709, and BT2020_10) where several functions are functionally identical. In these cases, when doing conversion, we should consider them as equivalent. Also, BT2020_12 is the same as the aforementioned three for less than 12 bits per pixel.

Parameters:

from_bpp (Number)

bits per pixel to convert from

to_bpp (Number)

bits per pixel to convert into

Returns (Number)

TRUE if from_func and to_func can be considered equivalent.

Since : 1.18


GstVideo.VideoTransferFunction.is_equivalent

def GstVideo.VideoTransferFunction.is_equivalent (from_func, from_bpp, to_func, to_bpp):
    #python wrapper for 'gst_video_transfer_function_is_equivalent'

Returns whether from_func and to_func are equivalent. There are cases (e.g. BT601, BT709, and BT2020_10) where several functions are functionally identical. In these cases, when doing conversion, we should consider them as equivalent. Also, BT2020_12 is the same as the aforementioned three for less than 12 bits per pixel.

Parameters:

from_bpp (int)

bits per pixel to convert from

to_bpp (int)

bits per pixel to convert into

Returns (bool)

TRUE if from_func and to_func can be considered equivalent.

Since : 1.18


gst_video_transfer_function_to_iso

guint
gst_video_transfer_function_to_iso (GstVideoTransferFunction func)

Converts GstVideoTransferFunction to the "transfer characteristics" (TransferCharacteristics) value defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Parameters:

Returns

The value of ISO/IEC 23001-8 transfer characteristics.

Since : 1.18


GstVideo.VideoTransferFunction.prototype.to_iso

function GstVideo.VideoTransferFunction.prototype.to_iso(func: GstVideo.VideoTransferFunction): {
    // javascript wrapper for 'gst_video_transfer_function_to_iso'
}

Converts GstVideo.VideoTransferFunction to the "transfer characteristics" (TransferCharacteristics) value defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Returns (Number)

The value of ISO/IEC 23001-8 transfer characteristics.

Since : 1.18


GstVideo.VideoTransferFunction.to_iso

def GstVideo.VideoTransferFunction.to_iso (func):
    #python wrapper for 'gst_video_transfer_function_to_iso'

Converts GstVideo.VideoTransferFunction to the "transfer characteristics" (TransferCharacteristics) value defined by "ISO/IEC 23001-8 Section 7.2 Table 3" and "ITU-T H.273 Table 3". "H.264 Table E-4" and "H.265 Table E.4" share the identical values.

Returns (int)

The value of ISO/IEC 23001-8 transfer characteristics.

Since : 1.18


Enumerations

GstVideoColorMatrix

The color matrix is used to convert between Y'PbPr and non-linear RGB (R'G'B')

Members
GST_VIDEO_COLOR_MATRIX_UNKNOWN (0) –

unknown matrix

GST_VIDEO_COLOR_MATRIX_RGB (1) –

identity matrix. Order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)

GST_VIDEO_COLOR_MATRIX_FCC (2) –

FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GST_VIDEO_COLOR_MATRIX_BT709 (3) –

ITU-R BT.709 color matrix, also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B

GST_VIDEO_COLOR_MATRIX_BT601 (4) –

ITU-R BT.601 color matrix, also SMPTE170M / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GST_VIDEO_COLOR_MATRIX_SMPTE240M (5) –

SMPTE 240M color matrix

GST_VIDEO_COLOR_MATRIX_BT2020 (6) –

ITU-R BT.2020 color matrix. Since: 1.6


GstVideo.VideoColorMatrix

The color matrix is used to convert between Y'PbPr and non-linear RGB (R'G'B')

Members
GstVideo.VideoColorMatrix.UNKNOWN (0) –

unknown matrix

GstVideo.VideoColorMatrix.RGB (1) –

identity matrix. Order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)

GstVideo.VideoColorMatrix.FCC (2) –

FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GstVideo.VideoColorMatrix.BT709 (3) –

ITU-R BT.709 color matrix, also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B

GstVideo.VideoColorMatrix.BT601 (4) –

ITU-R BT.601 color matrix, also SMPTE170M / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GstVideo.VideoColorMatrix.SMPTE240M (5) –

SMPTE 240M color matrix

GstVideo.VideoColorMatrix.BT2020 (6) –

ITU-R BT.2020 color matrix. Since: 1.6


GstVideo.VideoColorMatrix

The color matrix is used to convert between Y'PbPr and non-linear RGB (R'G'B')

Members
GstVideo.VideoColorMatrix.UNKNOWN (0) –

unknown matrix

GstVideo.VideoColorMatrix.RGB (1) –

identity matrix. Order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)

GstVideo.VideoColorMatrix.FCC (2) –

FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GstVideo.VideoColorMatrix.BT709 (3) –

ITU-R BT.709 color matrix, also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B

GstVideo.VideoColorMatrix.BT601 (4) –

ITU-R BT.601 color matrix, also SMPTE170M / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GstVideo.VideoColorMatrix.SMPTE240M (5) –

SMPTE 240M color matrix

GstVideo.VideoColorMatrix.BT2020 (6) –

ITU-R BT.2020 color matrix. Since: 1.6


GstVideoColorPrimaries

The color primaries define the how to transform linear RGB values to and from the CIE XYZ colorspace.

Members
GST_VIDEO_COLOR_PRIMARIES_UNKNOWN (0) –

unknown color primaries

GST_VIDEO_COLOR_PRIMARIES_BT709 (1) –

BT709 primaries, also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B

GST_VIDEO_COLOR_PRIMARIES_BT470M (2) –

BT470M primaries, also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GST_VIDEO_COLOR_PRIMARIES_BT470BG (3) –

BT470BG primaries, also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM

GST_VIDEO_COLOR_PRIMARIES_SMPTE170M (4) –

SMPTE170M primaries, also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GST_VIDEO_COLOR_PRIMARIES_SMPTE240M (5) –

SMPTE240M primaries

GST_VIDEO_COLOR_PRIMARIES_FILM (6) –

Generic film (colour filters using Illuminant C)

GST_VIDEO_COLOR_PRIMARIES_BT2020 (7) –

ITU-R BT2020 primaries. Since: 1.6

GST_VIDEO_COLOR_PRIMARIES_ADOBERGB (8) –

Adobe RGB primaries. Since: 1.8

GST_VIDEO_COLOR_PRIMARIES_SMPTEST428 (9) –

SMPTE ST 428 primaries (CIE 1931 XYZ). Since: 1.16

GST_VIDEO_COLOR_PRIMARIES_SMPTERP431 (10) –

SMPTE RP 431 primaries (ST 431-2 (2011) / DCI P3). Since: 1.16

GST_VIDEO_COLOR_PRIMARIES_SMPTEEG432 (11) –

SMPTE EG 432 primaries (ST 432-1 (2010) / P3 D65). Since: 1.16

GST_VIDEO_COLOR_PRIMARIES_EBU3213 (12) –

EBU 3213 primaries (JEDEC P22 phosphors). Since: 1.16


GstVideo.VideoColorPrimaries

The color primaries define the how to transform linear RGB values to and from the CIE XYZ colorspace.

Members
GstVideo.VideoColorPrimaries.UNKNOWN (0) –

unknown color primaries

GstVideo.VideoColorPrimaries.BT709 (1) –

BT709 primaries, also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B

GstVideo.VideoColorPrimaries.BT470M (2) –

BT470M primaries, also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GstVideo.VideoColorPrimaries.BT470BG (3) –

BT470BG primaries, also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM

GstVideo.VideoColorPrimaries.SMPTE170M (4) –

SMPTE170M primaries, also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GstVideo.VideoColorPrimaries.SMPTE240M (5) –

SMPTE240M primaries

GstVideo.VideoColorPrimaries.FILM (6) –

Generic film (colour filters using Illuminant C)

GstVideo.VideoColorPrimaries.BT2020 (7) –

ITU-R BT2020 primaries. Since: 1.6

GstVideo.VideoColorPrimaries.ADOBERGB (8) –

Adobe RGB primaries. Since: 1.8

GstVideo.VideoColorPrimaries.SMPTEST428 (9) –

SMPTE ST 428 primaries (CIE 1931 XYZ). Since: 1.16

GstVideo.VideoColorPrimaries.SMPTERP431 (10) –

SMPTE RP 431 primaries (ST 431-2 (2011) / DCI P3). Since: 1.16

GstVideo.VideoColorPrimaries.SMPTEEG432 (11) –

SMPTE EG 432 primaries (ST 432-1 (2010) / P3 D65). Since: 1.16

GstVideo.VideoColorPrimaries.EBU3213 (12) –

EBU 3213 primaries (JEDEC P22 phosphors). Since: 1.16


GstVideo.VideoColorPrimaries

The color primaries define the how to transform linear RGB values to and from the CIE XYZ colorspace.

Members
GstVideo.VideoColorPrimaries.UNKNOWN (0) –

unknown color primaries

GstVideo.VideoColorPrimaries.BT709 (1) –

BT709 primaries, also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B

GstVideo.VideoColorPrimaries.BT470M (2) –

BT470M primaries, also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)

GstVideo.VideoColorPrimaries.BT470BG (3) –

BT470BG primaries, also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM

GstVideo.VideoColorPrimaries.SMPTE170M (4) –

SMPTE170M primaries, also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC

GstVideo.VideoColorPrimaries.SMPTE240M (5) –

SMPTE240M primaries

GstVideo.VideoColorPrimaries.FILM (6) –

Generic film (colour filters using Illuminant C)

GstVideo.VideoColorPrimaries.BT2020 (7) –

ITU-R BT2020 primaries. Since: 1.6

GstVideo.VideoColorPrimaries.ADOBERGB (8) –

Adobe RGB primaries. Since: 1.8

GstVideo.VideoColorPrimaries.SMPTEST428 (9) –

SMPTE ST 428 primaries (CIE 1931 XYZ). Since: 1.16

GstVideo.VideoColorPrimaries.SMPTERP431 (10) –

SMPTE RP 431 primaries (ST 431-2 (2011) / DCI P3). Since: 1.16

GstVideo.VideoColorPrimaries.SMPTEEG432 (11) –

SMPTE EG 432 primaries (ST 432-1 (2010) / P3 D65). Since: 1.16

GstVideo.VideoColorPrimaries.EBU3213 (12) –

EBU 3213 primaries (JEDEC P22 phosphors). Since: 1.16


GstVideoColorRange

Possible color range values. These constants are defined for 8 bit color values and can be scaled for other bit depths.

Members
GST_VIDEO_COLOR_RANGE_UNKNOWN (0) –

unknown range

GST_VIDEO_COLOR_RANGE_0_255 (1) –

[0..255] for 8 bit components

GST_VIDEO_COLOR_RANGE_16_235 (2) –

[16..235] for 8 bit components. Chroma has [16..240] range.


GstVideo.VideoColorRange

Possible color range values. These constants are defined for 8 bit color values and can be scaled for other bit depths.

Members
GstVideo.VideoColorRange.UNKNOWN (0) –

unknown range

GstVideo.VideoColorRange.0_255 (1) –

[0..255] for 8 bit components

GstVideo.VideoColorRange.16_235 (2) –

[16..235] for 8 bit components. Chroma has [16..240] range.


GstVideo.VideoColorRange

Possible color range values. These constants are defined for 8 bit color values and can be scaled for other bit depths.

Members
GstVideo.VideoColorRange.UNKNOWN (0) –

unknown range

GstVideo.VideoColorRange.0_255 (1) –

[0..255] for 8 bit components

GstVideo.VideoColorRange.16_235 (2) –

[16..235] for 8 bit components. Chroma has [16..240] range.


GstVideoTransferFunction

The video transfer function defines the formula for converting between non-linear RGB (R'G'B') and linear RGB

Members
GST_VIDEO_TRANSFER_UNKNOWN (0) –

unknown transfer function

GST_VIDEO_TRANSFER_GAMMA10 (1) –

linear RGB, gamma 1.0 curve

GST_VIDEO_TRANSFER_GAMMA18 (2) –

Gamma 1.8 curve

GST_VIDEO_TRANSFER_GAMMA20 (3) –

Gamma 2.0 curve

GST_VIDEO_TRANSFER_GAMMA22 (4) –

Gamma 2.2 curve

GST_VIDEO_TRANSFER_BT709 (5) –

Gamma 2.2 curve with a linear segment in the lower range, also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM / ITU-R BT1361

GST_VIDEO_TRANSFER_SMPTE240M (6) –

Gamma 2.2 curve with a linear segment in the lower range

GST_VIDEO_TRANSFER_SRGB (7) –

Gamma 2.4 curve with a linear segment in the lower range. IEC 61966-2-1 (sRGB or sYCC)

GST_VIDEO_TRANSFER_GAMMA28 (8) –

Gamma 2.8 curve, also ITU-R BT470BG

GST_VIDEO_TRANSFER_LOG100 (9) –

Logarithmic transfer characteristic 100:1 range

GST_VIDEO_TRANSFER_LOG316 (10) –

Logarithmic transfer characteristic 316.22777:1 range (100 * sqrt(10) : 1)

GST_VIDEO_TRANSFER_BT2020_12 (11) –

Gamma 2.2 curve with a linear segment in the lower range. Used for BT.2020 with 12 bits per component. Since: 1.6

GST_VIDEO_TRANSFER_ADOBERGB (12) –

Gamma 2.19921875. Since: 1.8

GST_VIDEO_TRANSFER_BT2020_10 (13) –

Rec. ITU-R BT.2020-2 with 10 bits per component. (functionally the same as the values GST_VIDEO_TRANSFER_BT709 and GST_VIDEO_TRANSFER_BT601). Since: 1.18

GST_VIDEO_TRANSFER_SMPTE2084 (14) –

SMPTE ST 2084 for 10, 12, 14, and 16-bit systems. Known as perceptual quantization (PQ) Since: 1.18

GST_VIDEO_TRANSFER_ARIB_STD_B67 (15) –

Association of Radio Industries and Businesses (ARIB) STD-B67 and Rec. ITU-R BT.2100-1 hybrid loggamma (HLG) system Since: 1.18

GST_VIDEO_TRANSFER_BT601 (16) –

also known as SMPTE170M / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC


GstVideo.VideoTransferFunction

The video transfer function defines the formula for converting between non-linear RGB (R'G'B') and linear RGB

Members
GstVideo.VideoTransferFunction.UNKNOWN (0) –

unknown transfer function

GstVideo.VideoTransferFunction.GAMMA10 (1) –

linear RGB, gamma 1.0 curve

GstVideo.VideoTransferFunction.GAMMA18 (2) –

Gamma 1.8 curve

GstVideo.VideoTransferFunction.GAMMA20 (3) –

Gamma 2.0 curve

GstVideo.VideoTransferFunction.GAMMA22 (4) –

Gamma 2.2 curve

GstVideo.VideoTransferFunction.BT709 (5) –

Gamma 2.2 curve with a linear segment in the lower range, also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM / ITU-R BT1361

GstVideo.VideoTransferFunction.SMPTE240M (6) –

Gamma 2.2 curve with a linear segment in the lower range

GstVideo.VideoTransferFunction.SRGB (7) –

Gamma 2.4 curve with a linear segment in the lower range. IEC 61966-2-1 (sRGB or sYCC)

GstVideo.VideoTransferFunction.GAMMA28 (8) –

Gamma 2.8 curve, also ITU-R BT470BG

GstVideo.VideoTransferFunction.LOG100 (9) –

Logarithmic transfer characteristic 100:1 range

GstVideo.VideoTransferFunction.LOG316 (10) –

Logarithmic transfer characteristic 316.22777:1 range (100 * sqrt(10) : 1)

GstVideo.VideoTransferFunction.BT2020_12 (11) –

Gamma 2.2 curve with a linear segment in the lower range. Used for BT.2020 with 12 bits per component. Since: 1.6

GstVideo.VideoTransferFunction.ADOBERGB (12) –

Gamma 2.19921875. Since: 1.8

GstVideo.VideoTransferFunction.BT2020_10 (13) –

Rec. ITU-R BT.2020-2 with 10 bits per component. (functionally the same as the values GST_VIDEO_TRANSFER_BT709 and GST_VIDEO_TRANSFER_BT601). Since: 1.18

GstVideo.VideoTransferFunction.SMPTE2084 (14) –

SMPTE ST 2084 for 10, 12, 14, and 16-bit systems. Known as perceptual quantization (PQ) Since: 1.18

GstVideo.VideoTransferFunction.ARIB_STD_B67 (15) –

Association of Radio Industries and Businesses (ARIB) STD-B67 and Rec. ITU-R BT.2100-1 hybrid loggamma (HLG) system Since: 1.18

GstVideo.VideoTransferFunction.BT601 (16) –

also known as SMPTE170M / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC


GstVideo.VideoTransferFunction

The video transfer function defines the formula for converting between non-linear RGB (R'G'B') and linear RGB

Members
GstVideo.VideoTransferFunction.UNKNOWN (0) –

unknown transfer function

GstVideo.VideoTransferFunction.GAMMA10 (1) –

linear RGB, gamma 1.0 curve

GstVideo.VideoTransferFunction.GAMMA18 (2) –

Gamma 1.8 curve

GstVideo.VideoTransferFunction.GAMMA20 (3) –

Gamma 2.0 curve

GstVideo.VideoTransferFunction.GAMMA22 (4) –

Gamma 2.2 curve

GstVideo.VideoTransferFunction.BT709 (5) –

Gamma 2.2 curve with a linear segment in the lower range, also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM / ITU-R BT1361

GstVideo.VideoTransferFunction.SMPTE240M (6) –

Gamma 2.2 curve with a linear segment in the lower range

GstVideo.VideoTransferFunction.SRGB (7) –

Gamma 2.4 curve with a linear segment in the lower range. IEC 61966-2-1 (sRGB or sYCC)

GstVideo.VideoTransferFunction.GAMMA28 (8) –

Gamma 2.8 curve, also ITU-R BT470BG

GstVideo.VideoTransferFunction.LOG100 (9) –

Logarithmic transfer characteristic 100:1 range

GstVideo.VideoTransferFunction.LOG316 (10) –

Logarithmic transfer characteristic 316.22777:1 range (100 * sqrt(10) : 1)

GstVideo.VideoTransferFunction.BT2020_12 (11) –

Gamma 2.2 curve with a linear segment in the lower range. Used for BT.2020 with 12 bits per component. Since: 1.6

GstVideo.VideoTransferFunction.ADOBERGB (12) –

Gamma 2.19921875. Since: 1.8

GstVideo.VideoTransferFunction.BT2020_10 (13) –

Rec. ITU-R BT.2020-2 with 10 bits per component. (functionally the same as the values GST_VIDEO_TRANSFER_BT709 and GST_VIDEO_TRANSFER_BT601). Since: 1.18

GstVideo.VideoTransferFunction.SMPTE2084 (14) –

SMPTE ST 2084 for 10, 12, 14, and 16-bit systems. Known as perceptual quantization (PQ) Since: 1.18

GstVideo.VideoTransferFunction.ARIB_STD_B67 (15) –

Association of Radio Industries and Businesses (ARIB) STD-B67 and Rec. ITU-R BT.2100-1 hybrid loggamma (HLG) system Since: 1.18

GstVideo.VideoTransferFunction.BT601 (16) –

also known as SMPTE170M / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC


Constants

GST_VIDEO_COLORIMETRY_BT2020

#define GST_VIDEO_COLORIMETRY_BT2020      "bt2020"

GstVideo.VIDEO_COLORIMETRY_BT2020


GstVideo.VIDEO_COLORIMETRY_BT2020


GST_VIDEO_COLORIMETRY_BT2020_10

#define GST_VIDEO_COLORIMETRY_BT2020_10   "bt2020-10"

GstVideo.VIDEO_COLORIMETRY_BT2020_10


GstVideo.VIDEO_COLORIMETRY_BT2020_10


GST_VIDEO_COLORIMETRY_BT2100_HLG

#define GST_VIDEO_COLORIMETRY_BT2100_HLG  "bt2100-hlg"

GstVideo.VIDEO_COLORIMETRY_BT2100_HLG


GstVideo.VIDEO_COLORIMETRY_BT2100_HLG


GST_VIDEO_COLORIMETRY_BT2100_PQ

#define GST_VIDEO_COLORIMETRY_BT2100_PQ   "bt2100-pq"

GstVideo.VIDEO_COLORIMETRY_BT2100_PQ


GstVideo.VIDEO_COLORIMETRY_BT2100_PQ


GST_VIDEO_COLORIMETRY_BT601

#define GST_VIDEO_COLORIMETRY_BT601       "bt601"

GstVideo.VIDEO_COLORIMETRY_BT601


GstVideo.VIDEO_COLORIMETRY_BT601


GST_VIDEO_COLORIMETRY_BT709

#define GST_VIDEO_COLORIMETRY_BT709       "bt709"

GstVideo.VIDEO_COLORIMETRY_BT709


GstVideo.VIDEO_COLORIMETRY_BT709


GST_VIDEO_COLORIMETRY_SMPTE240M

#define GST_VIDEO_COLORIMETRY_SMPTE240M   "smpte240m"

GstVideo.VIDEO_COLORIMETRY_SMPTE240M


GstVideo.VIDEO_COLORIMETRY_SMPTE240M


GST_VIDEO_COLORIMETRY_SRGB

#define GST_VIDEO_COLORIMETRY_SRGB        "sRGB"

GstVideo.VIDEO_COLORIMETRY_SRGB


GstVideo.VIDEO_COLORIMETRY_SRGB


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