exif: add debug category

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6741>

1 files changed, 19 insertions, 0 deletions

diff --git a/subprojects/gst-plugins-base/gst-libs/gst/tag/gstexiftag.c b/subprojects/gst-plugins-base/gst-libs/gst/tag/gstexiftag.c
index 45dfa00f36..98d05c6b87 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/tag/gstexiftag.c
+++ b/subprojects/gst-plugins-base/gst-libs/gst/tag/gstexiftag.c
@@ -65,6 +65,25 @@ typedef struct _GstExifWriter GstExifWriter;
 typedef struct _GstExifReader GstExifReader;
 typedef struct _GstExifTagData GstExifTagData;
 
+#define GST_CAT_DEFAULT gst_exif_tag_ensure_debug_category()
+
+static GstDebugCategory *
+gst_exif_tag_ensure_debug_category (void)
+{
+  static gsize cat_gonce = 0;
+
+  if (g_once_init_enter (&cat_gonce)) {
+    GstDebugCategory *cat = NULL;
+
+    GST_DEBUG_CATEGORY_INIT (cat, "exif-tags", 0, "EXIF tag parsing");
+
+    g_once_init_leave (&cat_gonce, (gsize) cat);
+  }
+
+  return (GstDebugCategory *) cat_gonce;
+}
+
+
 typedef void (*GstExifSerializationFunc) (GstExifWriter * writer,
     const GstTagList * taglist, const GstExifTagMatch * exiftag);