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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1dee0f05a7
This commit modifies GstVideoMasteringDisplayInfo and GstVideoContentLightLevel structs so that each value is to be more like hdr_metadata_infoframe struct of linux drm header and DXGI_HDR_METADATA_HDR10 struct of Windows. So each value is no more fraction but normalized one as per CTA 861.G spec. Also the unit of each value will be consistent with H.264, H.265 specifications, hdr_metadata_infoframe struct for linux and DXGI_HDR_METADATA_HDR10 struct for Windows.
139 lines
5 KiB
C
139 lines
5 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 _GstVideoMasteringDisplayInfoCoordinates GstVideoMasteringDisplayInfoCoordinates;
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typedef struct _GstVideoMasteringDisplayInfo GstVideoMasteringDisplayInfo;
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typedef struct _GstVideoContentLightLevel GstVideoContentLightLevel;
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/**
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* GstVideoMasteringDisplayInfoCoordinates:
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* @x: the x coordinate of CIE 1931 color space in unit of 0.00002.
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* @x: the y coordinate of CIE 1931 color space in unit of 0.00002.
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*
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* Used to represent display_primaries and white_point of
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* #GstVideoMasteringDisplayInfo struct. See #GstVideoMasteringDisplayInfo
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*
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* Since: 1.18
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*/
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struct _GstVideoMasteringDisplayInfoCoordinates
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{
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guint16 x;
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guint16 y;
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};
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/**
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* GstVideoMasteringDisplayInfo:
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* @display_primaries: the xy coordinates of primaries in the CIE 1931 color space.
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* the index 0 contains red, 1 is for green and 2 is for blue.
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* each value is normalized to 50000 (meaning that in unit of 0.00002)
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* @white_point: the xy coordinates of white point in the CIE 1931 color space.
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* each value is normalized to 50000 (meaning that in unit of 0.00002)
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* @max_display_mastering_luminance: the maximum value of display luminance
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* in unit of 0.0001 candelas per square metre (cd/m^2 and nit)
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* @min_display_mastering_luminance: the minimum value of display luminance
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* in unit of 0.0001 candelas per square metre (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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*
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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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GstVideoMasteringDisplayInfoCoordinates display_primaries[3];
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GstVideoMasteringDisplayInfoCoordinates white_point;
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guint32 max_display_mastering_luminance;
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guint32 min_display_mastering_luminance;
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/*< private >*/
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gpointer _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_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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* GstVideoContentLightLevel:
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* @max_content_light_level: the maximum content light level
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* (abbreviated to MaxCLL) in candelas per square meter (cd/m^2 and nit)
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* @max_frame_average_light_level: the maximum frame average light level
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* (abbreviated to MaxFLL) in candelas per square meter (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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guint16 max_content_light_level;
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guint16 max_frame_average_light_level;
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/*< private >*/
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gpointer _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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