[libmediaart] extract: Add introspection annotations to media_art_buffer_to_jpeg()

[Carlos Garnacho <carlosg src gnome org>]

commit 65a8f317a7155303a7208808234570f32c721207
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Mar 4 19:16:02 2017 +0100

    extract: Add introspection annotations to media_art_buffer_to_jpeg()
    
    Otherwise the function is unusable through gobject-introspection.

 libmediaart/extractdummy.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libmediaart/extractdummy.c b/libmediaart/extractdummy.c
index f80ccd2..6ae89d5 100644
--- a/libmediaart/extractdummy.c
+++ b/libmediaart/extractdummy.c
@@ -93,7 +93,7 @@ media_art_file_to_jpeg (const gchar  *filename,
 
 /**
  * media_art_buffer_to_jpeg:
- * @buffer: Raw buffer representing content to save
+ * @buffer: (array length=len): Raw buffer representing content to save
  * @len: Length of @buffer to use
  * @buffer_mime: MIME type for @buffer
  * @target: Output file name (not URI) to save converted content to