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Introduce HDR signalling methods * GstVideoMasteringDisplayInfo: Representing display color volume info. Defined by SMPTE ST 2086 * GstVideoContentLightLevel: Representing content light level specified in CEA-861.3, Appendix A. Closes https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/400
143 lines
5.9 KiB
C
143 lines
5.9 KiB
C
/* GStreamer
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* Copyright (C) <2018-2019> Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_HDR_H__
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#define __GST_VIDEO_HDR_H__
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#include <gst/gst.h>
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#include <gst/video/video-prelude.h>
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G_BEGIN_DECLS
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typedef struct _GstVideoMasteringDisplayInfo GstVideoMasteringDisplayInfo;
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typedef struct _GstVideoContentLightLevel GstVideoContentLightLevel;
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/**
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* GstVideoMasteringDisplayInfo:
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* @Rx_n: the numerator of nunormalized red x coordinate as defined CIE 1931
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* @Rx_d: the denominator of normalized red x coordinate as defined CIE 1931
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* @Ry_n: the numerator of normalized red y coordinate as defined CIE 1931
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* @Ry_d: the denominator of normalized red y coordinate as defined CIE 1931
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* @Gx_n: the numerator of normalized green x coordinate as defined CIE 1931
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* @Gx_d: the denominator of normalized green x coordinate as defined CIE 1931
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* @Gy_n: the numerator of normalized green y coordinate as defined CIE 1931
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* @Gy_d: the denominator of normalized green y coordinate as defined CIE 1931
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* @Bx_n: the numerator of normalized blue x coordinate as defined CIE 1931
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* @Bx_d: the denominator of normalized blue x coordinate as defined CIE 1931
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* @By_n: the numerator of normalized blue y coordinate as defined CIE 1931
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* @By_d: the denominator of normalized blue y coordinate as defined CIE 1931
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* @Wx_n: the numerator of normalized white x coordinate as defined CIE 1931
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* @Wx_d: the denominator of normalized white x coordinate as defined CIE 1931
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* @Wy_n: the numerator of normalized white y coordinate as defined CIE 1931
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* @Wy_d: the denominator of normalized white y coordinate as defined CIE 1931
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* @max_luma_n: the numerator of maximum display luminance in candelas per square meter (cd/m^2 and nit)
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* @max_luma_d: the denominator of maximum display luminance in candelas per square meter (cd/m^2 and nit)
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* @min_luma_n: the numerator of minimum display luminance in candelas per square meter (cd/m^2 and nit)
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* @min_luma_d: the denominator of minimum display luminance in candelas per square meter (cd/m^2 and nit)
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*
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* Mastering display color volume information defined by SMPTE ST 2086
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* (a.k.a static HDR metadata).
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* Each array represent fraction value of red, green, blue, white
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* and min/max luma (the first element of an array is numerator).
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*
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* The decimal representation of each red, green, blue and white value should
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* be in the range of [0, 1].
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*
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* Since: 1.18
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*/
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struct _GstVideoMasteringDisplayInfo
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{
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guint Rx_n, Rx_d, Ry_n, Ry_d;
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guint Gx_n, Gx_d, Gy_n, Gy_d;
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guint Bx_n, Bx_d, By_n, By_d;
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guint Wx_n, Wx_d, Wy_n, Wy_d;
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guint max_luma_n, max_luma_d;
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guint min_luma_n, min_luma_d;
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/*< private >*/
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guint _gst_reserved[GST_PADDING];
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};
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GST_VIDEO_API
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void gst_video_mastering_display_info_init (GstVideoMasteringDisplayInfo * minfo);
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GST_VIDEO_API
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gboolean gst_video_mastering_display_info_from_string (GstVideoMasteringDisplayInfo * minfo,
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const gchar * mastering);
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GST_VIDEO_API
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gchar * gst_video_mastering_display_info_to_string (const GstVideoMasteringDisplayInfo * minfo);
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GST_VIDEO_API
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gboolean gst_video_mastering_display_info_is_equal (const GstVideoMasteringDisplayInfo * minfo,
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const GstVideoMasteringDisplayInfo * other);
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GST_VIDEO_API
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gboolean gst_video_mastering_display_info_is_valid (const GstVideoMasteringDisplayInfo * minfo);
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GST_VIDEO_API
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gboolean gst_video_mastering_display_info_from_caps (GstVideoMasteringDisplayInfo * minfo,
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const GstCaps * caps);
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GST_VIDEO_API
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gboolean gst_video_mastering_display_info_add_to_caps (const GstVideoMasteringDisplayInfo * minfo,
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GstCaps * caps);
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/**
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* GstVideoContentLightMeta:
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* @maxCLL_n: the numerator of Maximum Content Light Level (cd/m^2 and nit)
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* @maxCLL_d: the denominator of Maximum Content Light Level (cd/m^2 and nit)
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* @maxFALL_n: the numerator Maximum Frame-Average Light Level (cd/m^2 and nit)
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* @maxFALL_d: the denominator Maximum Frame-Average Light Level (cd/m^2 and nit)
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*
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* Content light level information specified in CEA-861.3, Appendix A.
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*
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* Since: 1.18
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*/
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struct _GstVideoContentLightLevel
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{
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guint maxCLL_n, maxCLL_d;
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guint maxFALL_n, maxFALL_d;
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/*< private >*/
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guint _gst_reserved[GST_PADDING];
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};
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GST_VIDEO_API
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void gst_video_content_light_level_init (GstVideoContentLightLevel * linfo);
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GST_VIDEO_API
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gboolean gst_video_content_light_level_from_string (GstVideoContentLightLevel * linfo,
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const gchar * level);
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GST_VIDEO_API
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gchar * gst_video_content_light_level_to_string (const GstVideoContentLightLevel * linfo);
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GST_VIDEO_API
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gboolean gst_video_content_light_level_from_caps (GstVideoContentLightLevel * linfo,
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const GstCaps * caps);
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GST_VIDEO_API
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gboolean gst_video_content_light_level_add_to_caps (const GstVideoContentLightLevel * linfo,
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GstCaps * caps);
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G_END_DECLS
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#endif /* __GST_VIDEO_HDR_H__ */
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