/usr/include/gstreamer-1.0/gst/video/video-color.h is in libgstreamer-plugins-base1.0-dev 1.2.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | /* GStreamer
* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_VIDEO_COLOR_H__
#define __GST_VIDEO_COLOR_H__
#include <gst/gst.h>
#include <gst/video/video-format.h>
G_BEGIN_DECLS
/**
* GstVideoColorRange:
* @GST_VIDEO_COLOR_RANGE_UNKNOWN: unknown range
* @GST_VIDEO_COLOR_RANGE_0_255: [0..255] for 8 bit components
* @GST_VIDEO_COLOR_RANGE_16_235: [16..235] for 8 bit components. Chroma has
* [16..240] range.
*
* Possible color range values. These constants are defined for 8 bit color
* values and can be scaled for other bit depths.
*/
typedef enum {
GST_VIDEO_COLOR_RANGE_UNKNOWN = 0,
GST_VIDEO_COLOR_RANGE_0_255,
GST_VIDEO_COLOR_RANGE_16_235
} GstVideoColorRange;
/**
* GstVideoColorMatrix:
* @GST_VIDEO_COLOR_MATRIX_UNKNOWN: unknown matrix
* @GST_VIDEO_COLOR_MATRIX_RGB: identity matrix
* @GST_VIDEO_COLOR_MATRIX_FCC: FCC color matrix
* @GST_VIDEO_COLOR_MATRIX_BT709: ITU-R BT.709 color matrix
* @GST_VIDEO_COLOR_MATRIX_BT601: ITU-R BT.601 color matrix
* @GST_VIDEO_COLOR_MATRIX_SMPTE240M: SMPTE 240M color matrix
*
* The color matrix is used to convert between Y'PbPr and
* non-linear RGB (R'G'B')
*/
typedef enum {
GST_VIDEO_COLOR_MATRIX_UNKNOWN = 0,
GST_VIDEO_COLOR_MATRIX_RGB,
GST_VIDEO_COLOR_MATRIX_FCC,
GST_VIDEO_COLOR_MATRIX_BT709,
GST_VIDEO_COLOR_MATRIX_BT601,
GST_VIDEO_COLOR_MATRIX_SMPTE240M
} GstVideoColorMatrix;
/**
* GstVideoTransferFunction:
* @GST_VIDEO_TRANSFER_UNKNOWN: unknown transfer function
* @GST_VIDEO_TRANSFER_GAMMA10: linear RGB, gamma 1.0 curve
* @GST_VIDEO_TRANSFER_GAMMA18: Gamma 1.8 curve
* @GST_VIDEO_TRANSFER_GAMMA20: Gamma 2.0 curve
* @GST_VIDEO_TRANSFER_GAMMA22: Gamma 2.2 curve
* @GST_VIDEO_TRANSFER_BT709: Gamma 2.2 curve with a linear segment in the lower
* range
* @GST_VIDEO_TRANSFER_SMPTE240M: Gamma 2.2 curve with a linear segment in the
* lower range
* @GST_VIDEO_TRANSFER_SRGB: Gamma 2.4 curve with a linear segment in the lower
* range
* @GST_VIDEO_TRANSFER_GAMMA28: Gamma 2.8 curve
* @GST_VIDEO_TRANSFER_LOG100: Logarithmic transfer characteristic
* 100:1 range
* @GST_VIDEO_TRANSFER_LOG316: Logarithmic transfer characteristic
* 316.22777:1 range
*
* The video transfer function defines the formula for converting between
* non-linear RGB (R'G'B') and linear RGB
*/
typedef enum {
GST_VIDEO_TRANSFER_UNKNOWN = 0,
GST_VIDEO_TRANSFER_GAMMA10,
GST_VIDEO_TRANSFER_GAMMA18,
GST_VIDEO_TRANSFER_GAMMA20,
GST_VIDEO_TRANSFER_GAMMA22,
GST_VIDEO_TRANSFER_BT709,
GST_VIDEO_TRANSFER_SMPTE240M,
GST_VIDEO_TRANSFER_SRGB,
GST_VIDEO_TRANSFER_GAMMA28,
GST_VIDEO_TRANSFER_LOG100,
GST_VIDEO_TRANSFER_LOG316
} GstVideoTransferFunction;
/**
* GstVideoColorPrimaries:
* @GST_VIDEO_COLOR_PRIMARIES_UNKNOWN: unknown color primaries
* @GST_VIDEO_COLOR_PRIMARIES_BT709: BT709 primaries
* @GST_VIDEO_COLOR_PRIMARIES_BT470M: BT470M primaries
* @GST_VIDEO_COLOR_PRIMARIES_BT470BG: BT470BG primaries
* @GST_VIDEO_COLOR_PRIMARIES_SMPTE170M: SMPTE170M primaries
* @GST_VIDEO_COLOR_PRIMARIES_SMPTE240M: SMPTE240M primaries
* @GST_VIDEO_COLOR_PRIMARIES_FILM: Generic film
*
* The color primaries define the how to transform linear RGB values to and from
* the CIE XYZ colorspace.
*/
typedef enum {
GST_VIDEO_COLOR_PRIMARIES_UNKNOWN = 0,
GST_VIDEO_COLOR_PRIMARIES_BT709,
GST_VIDEO_COLOR_PRIMARIES_BT470M,
GST_VIDEO_COLOR_PRIMARIES_BT470BG,
GST_VIDEO_COLOR_PRIMARIES_SMPTE170M,
GST_VIDEO_COLOR_PRIMARIES_SMPTE240M,
GST_VIDEO_COLOR_PRIMARIES_FILM
} GstVideoColorPrimaries;
/**
* GstVideoColorimetry:
* @range: the color range. This is the valid range for the samples.
* It is used to convert the samples to Y'PbPr values.
* @matrix: the color matrix. Used to convert between Y'PbPr and
* non-linear RGB (R'G'B')
* @transfer: the transfer function. used to convert between R'G'B' and RGB
* @primaries: color primaries. used to convert between R'G'B' and CIE XYZ
*
* Structure describing the color info.
*/
typedef struct {
GstVideoColorRange range;
GstVideoColorMatrix matrix;
GstVideoTransferFunction transfer;
GstVideoColorPrimaries primaries;
} GstVideoColorimetry;
/* predefined colorimetry */
#define GST_VIDEO_COLORIMETRY_BT601 "bt601"
#define GST_VIDEO_COLORIMETRY_BT709 "bt709"
#define GST_VIDEO_COLORIMETRY_SMPTE240M "smpte240m"
gboolean gst_video_colorimetry_matches (GstVideoColorimetry *cinfo, const gchar *color);
gboolean gst_video_colorimetry_from_string (GstVideoColorimetry *cinfo, const gchar *color);
gchar * gst_video_colorimetry_to_string (GstVideoColorimetry *cinfo);
/* compute offset and scale */
void gst_video_color_range_offsets (GstVideoColorRange range,
const GstVideoFormatInfo *info,
gint offset[GST_VIDEO_MAX_COMPONENTS],
gint scale[GST_VIDEO_MAX_COMPONENTS]);
G_END_DECLS
#endif /* __GST_VIDEO_COLOR_H__ */
|