gio: Post a custom file-exists message on the bus if the file already exists

An application can handle this message, remove the file in question
and restart the pipeline again without showing an error.

This fixes bug #529300.

1 files changed, 11 insertions, 2 deletions

diff --git a/ext/gio/gstgiosink.c b/ext/gio/gstgiosink.c
index dba1d75f2..cf8cea5b9 100644
--- a/ext/gio/gstgiosink.c
+++ b/ext/gio/gstgiosink.c
@@ -263,12 +263,21 @@ gst_gio_sink_get_stream (GstGioBaseSink * bsink)
       /*if (GST_GIO_ERROR_MATCHES (err, EXISTS)) */
       /* FIXME: Retry with replace if overwrite == TRUE! */
 
-      if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND))
+      if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
         GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND, (NULL),
             ("Could not open location %s for writing: %s", uri, err->message));
-      else
+      } else if (GST_GIO_ERROR_MATCHES (err, EXISTS)) {
+        gst_element_post_message (GST_ELEMENT_CAST (sink),
+            gst_message_new_element (GST_OBJECT_CAST (sink),
+                gst_structure_new ("file-exists", "file", G_TYPE_FILE,
+                    sink->file, "uri", G_TYPE_STRING, uri, NULL)));
+
+        GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
+            ("Location %s already exists: %s", uri, err->message));
+      } else {
         GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
             ("Could not open location %s for writing: %s", uri, err->message));
+      }
 
       g_clear_error (&err);
     }