glcolorconvert: put GstGLSyncMeta on output buffers

allows thread safely using the provided output buffer in a separate
thread

diff --git a/ext/gl/gstglimagesink.c b/ext/gl/gstglimagesink.c
index 36c3db4..582ac78 100644 (file)
--- a/ext/gl/gstglimagesink.c
+++ b/ext/gl/gstglimagesink.c
@@ -1379,6 +1379,7 @@ gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
   const GstGLFuncs *gl = NULL;
   GstGLWindow *window = NULL;
   gboolean do_redisplay;
+  GstGLSyncMeta *sync_meta;
 
   g_return_if_fail (GST_IS_GLIMAGE_SINK (gl_sink));
 
@@ -1407,6 +1408,10 @@ gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
     gl_sink->caps_change = FALSE;
   }
 
+  sync_meta = gst_buffer_get_gl_sync_meta (gl_sink->stored_buffer);
+  if (sync_meta)
+    gst_gl_sync_meta_wait (sync_meta);
+
   /* make sure that the environnement is clean */
   gst_gl_context_clear_shader (gl_sink->context);
 

diff --git a/gst-libs/gst/gl/gstglcolorconvert.c b/gst-libs/gst/gl/gstglcolorconvert.c
index 2594e2e..755e587 100644 (file)
--- a/gst-libs/gst/gl/gstglcolorconvert.c
+++ b/gst-libs/gst/gl/gstglcolorconvert.c
@@ -1560,6 +1560,14 @@ out:
     convert->outbuf = NULL;
   }
 
+  if (convert->outbuf) {
+    GstGLSyncMeta *sync_meta =
+        gst_buffer_add_gl_sync_meta (convert->context, convert->outbuf);
+
+    if (sync_meta)
+      gst_gl_sync_meta_set_sync_point (sync_meta, convert->context);
+  }
+
   convert->priv->result = res;
   return;
 }