From: Tim-Philipp Müller <tim.muller@collabora.co.uk>
Date: Wed, 29 Dec 2010 22:36:41 +0000 (+0000)
Subject: typefinding: assume EBML files without doctype are matroska
X-Git-Tag: RELEASE-0.10.32~72
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bb786dfb5cc480b0329876b123e468a26031cf71;p=platform%2Fupstream%2Fgst-plugins-base.git

typefinding: assume EBML files without doctype are matroska

https://bugzilla.gnome.org/show_bug.cgi?id=638019
---

diff --git a/gst/typefind/gsttypefindfunctions.c b/gst/typefind/gsttypefindfunctions.c
index 5944c70..640f769 100644
--- a/gst/typefind/gsttypefindfunctions.c
+++ b/gst/typefind/gsttypefindfunctions.c
@@ -3184,6 +3184,10 @@ ebml_check_header (GstTypeFind * tf, const gchar * doctype, int doctype_len)
   if (!data)
     return FALSE;
 
+  /* only check doctype if asked to do so */
+  if (doctype == NULL || doctype_len == 0)
+    return TRUE;
+
   /* the header must contain the doctype. For now, we don't parse the
    * whole header but simply check for the availability of that array
    * of characters inside the header. Not fully fool-proof, but good
@@ -3204,6 +3208,8 @@ matroska_type_find (GstTypeFind * tf, gpointer ununsed)
 {
   if (ebml_check_header (tf, "matroska", 8))
     gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MATROSKA_CAPS);
+  else if (ebml_check_header (tf, NULL, 0))
+    gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MATROSKA_CAPS);
 }
 
 /*** video/webm ***/