From 9522551e1d66c538229ca635f6b958c9741b7647 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Tue, 29 Jul 2025 16:56:36 +1000
Subject: [PATCH] gl/basesrc: add get_gl_context

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9455>
---
 girs/GstGL-1.0.gir                            | 13 ++++++++++++
 .../gst-libs/gst/gl/gstglbasesrc.c            | 20 +++++++++++++++++++
 .../gst-libs/gst/gl/gstglbasesrc.h            |  5 ++++-
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/girs/GstGL-1.0.gir b/girs/GstGL-1.0.gir
index 74b875d56f..786435de64 100644
--- a/girs/GstGL-1.0.gir
+++ b/girs/GstGL-1.0.gir
@@ -1243,6 +1243,19 @@ current in the calling thread.</doc>
           </instance-parameter>
         </parameters>
       </virtual-method>
+      <method name="get_gl_context" c:identifier="gst_gl_base_src_get_gl_context" version="1.28">
+        <source-position filename="../subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.h"/>
+        <return-value transfer-ownership="full" nullable="1">
+          <doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c">the configured #GstGLContext.</doc>
+          <type name="GLContext" c:type="GstGLContext*"/>
+        </return-value>
+        <parameters>
+          <instance-parameter name="base_src" transfer-ownership="none">
+            <doc xml:space="preserve" filename="../subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c">a #GstGLBaseSrc</doc>
+            <type name="GLBaseSrc" c:type="GstGLBaseSrc*"/>
+          </instance-parameter>
+        </parameters>
+      </method>
       <property name="timestamp-offset" writable="1" transfer-ownership="none" default-value="0">
         <type name="gint64" c:type="gint64"/>
       </property>
diff --git a/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c b/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c
index 0740ac8004..e05137a91c 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c
+++ b/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.c
@@ -746,3 +746,23 @@ gst_gl_base_src_do_seek (GstBaseSrc * basesrc, GstSegment * segment)
 
   return GST_BASE_SRC_CLASS (parent_class)->do_seek (basesrc, segment);
 }
+
+/**
+ * gst_gl_base_src_get_gl_context:
+ * @base_src: a #GstGLBaseSrc
+ *
+ * Returns: (nullable) (transfer full): the configured #GstGLContext.
+ * Since: 1.28
+ */
+GstGLContext *
+gst_gl_base_src_get_gl_context (GstGLBaseSrc * base_src)
+{
+  GstGLContext *ret = NULL;
+
+  g_rec_mutex_lock (&base_src->priv->context_lock);
+  if (base_src->context)
+    ret = gst_object_ref (base_src->context);
+  g_rec_mutex_unlock (&base_src->priv->context_lock);
+
+  return ret;
+}
diff --git a/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.h b/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.h
index 4c9d3a435c..9a6d5ef976 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.h
+++ b/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglbasesrc.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * GStreamer
  * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
  * Copyright (C) 2002,2007 David A. Schleef <ds@schleef.org>
@@ -95,6 +95,9 @@ struct _GstGLBaseSrcClass {
   gpointer _padding[GST_PADDING];
 };
 
+GST_GL_API
+GstGLContext * gst_gl_base_src_get_gl_context (GstGLBaseSrc *base_src);
+
 G_END_DECLS
 
 #endif /* __GST_GL_BASE_SRC_H__ */