From 11e6f8da925f3c2f7b157221cecf6326edd5f2be Mon Sep 17 00:00:00 2001
From: Jakub Adam <jakub.adam@collabora.com>
Date: Mon, 27 Apr 2020 20:52:34 +0200
Subject: [PATCH] video-hdr: Add API to check content light level equality

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/969>
---
 gst-libs/gst/video/video-hdr.c | 23 +++++++++++++++++++++++
 gst-libs/gst/video/video-hdr.h |  4 ++++
 2 files changed, 27 insertions(+)

diff --git a/gst-libs/gst/video/video-hdr.c b/gst-libs/gst/video/video-hdr.c
index 728d423bf5..4c32747201 100644
--- a/gst-libs/gst/video/video-hdr.c
+++ b/gst-libs/gst/video/video-hdr.c
@@ -380,6 +380,29 @@ gst_video_content_light_level_to_string (const GstVideoContentLightLevel *
       linfo->max_content_light_level, linfo->max_frame_average_light_level);
 }
 
+/**
+ * gst_video_content_light_level_is_equal:
+ * @linfo: a #GstVideoContentLightLevel
+ * @other: a #GstVideoContentLightLevel
+ *
+ * Checks equality between @linfo and @other.
+ *
+ * Returns: %TRUE if @linfo and @other are equal.
+ *
+ * Since: 1.20
+ */
+gboolean
+gst_video_content_light_level_is_equal (const GstVideoContentLightLevel * linfo,
+    const GstVideoContentLightLevel * other)
+{
+  g_return_val_if_fail (linfo != NULL, FALSE);
+  g_return_val_if_fail (other != NULL, FALSE);
+
+  return (linfo->max_content_light_level == other->max_content_light_level &&
+      linfo->max_frame_average_light_level ==
+      other->max_frame_average_light_level);
+}
+
 /**
  * gst_video_content_light_level_from_caps:
  * @linfo: a #GstVideoContentLightLevel
diff --git a/gst-libs/gst/video/video-hdr.h b/gst-libs/gst/video/video-hdr.h
index 6b3a915f5e..2b5850b565 100644
--- a/gst-libs/gst/video/video-hdr.h
+++ b/gst-libs/gst/video/video-hdr.h
@@ -255,6 +255,10 @@ gboolean  gst_video_content_light_level_from_string  (GstVideoContentLightLevel
 GST_VIDEO_API
 gchar *   gst_video_content_light_level_to_string    (const GstVideoContentLightLevel * linfo);
 
+GST_VIDEO_API
+gboolean  gst_video_content_light_level_is_equal     (const GstVideoContentLightLevel * linfo,
+                                                      const GstVideoContentLightLevel * other);
+
 GST_VIDEO_API
 gboolean  gst_video_content_light_level_from_caps    (GstVideoContentLightLevel * linfo,
                                                       const GstCaps * caps);