[tracker/tracker-0.12] tracker-extract-gstreamer: Don't test for NULL tagcache, it's never NULL



commit cd6e06f8bd421c549f7643a1f6684416f6155bf1
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Sep 30 14:32:22 2011 +0100

    tracker-extract-gstreamer: Don't test for NULL tagcache, it's never NULL
    
    Instead use !gst_tag_list_is_empty()

 src/tracker-extract/tracker-extract-gstreamer.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index 34736af..03918ae 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -938,8 +938,10 @@ extract_metadata (MetadataExtractor      *extractor,
 		}
 	}
 
-	if (extractor->mime == EXTRACT_MIME_GUESS && extractor->tagcache)
+	if (extractor->mime == EXTRACT_MIME_GUESS && !gst_tag_list_is_empty (extractor->tagcache)) {
 		extractor_guess_content_type (extractor);
+	}
+
 	if (extractor->mime == EXTRACT_MIME_GUESS) {
 		g_warning ("Cannot guess real stream type if no tags were read! "
 		           "Defaulting to Video.");



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