Backport:

r33281 changed: parse media:group entries in rss (will select the first available item)
r33282 changed: improve rss directory by always selecting the resource with highest bitrate or resolution
r33283 changed: always select the longest rss title
r33284 changed: if mimetype is set that is a more sure type than any video/audio/picture tags
r33285 added: method to set a listitems mimetype from python. allows plugins to avoid the http HEAD request done to look this up on playback
r33286 changed: make sure a rss resource selects content based in prio list video/audio/rss/image changed: if content is application/rss+xml and protocol is http:// replace protocol with rss:// since server may be silly and not return correct content type
r33287 added: parse SVT Play rss extensions rss continuation links

git-svn-id: https://xbmc.svn.sourceforge.net/svnroot/xbmc/branches/Dharma@33313 568bbfeb-2a22-0410-94d2-cc84cf5bfa90

xbmc/FileItem.cpp

@@ -456,14 +456,14 @@ bool CFileItem::Exists(bool bUseCache /* = true */) const
 
 bool CFileItem::IsVideo() const
 {
-  if (HasVideoInfoTag()) return true;
-  if (HasMusicInfoTag()) return false;
-  if (HasPictureInfoTag()) return false;
-
   /* check preset mime type */
   if( m_mimetype.Left(6).Equals("video/") )
     return true;
 
+  if (HasVideoInfoTag()) return true;
+  if (HasMusicInfoTag()) return false;
+  if (HasPictureInfoTag()) return false;
+
   if (IsHDHomeRun() || IsTuxBox() || CUtil::IsDVD(m_strPath))
     return true;
 
@@ -492,16 +492,16 @@ bool CFileItem::IsVideo() const
 
 bool CFileItem::IsAudio() const
 {
+  /* check preset mime type */
+  if( m_mimetype.Left(6).Equals("audio/") )
+    return true;
+
   if (HasMusicInfoTag()) return true;
   if (HasVideoInfoTag()) return false;
   if (HasPictureInfoTag()) return false;
   if (IsCDDA()) return true;
   if (!m_bIsFolder && IsLastFM()) return true;
 
-  /* check preset mime type */
-  if( m_mimetype.Left(6).Equals("audio/") )
-    return true;
-
   CStdString extension;
   if( m_mimetype.Left(12).Equals("application/") )
   { /* check for some standard types */
@@ -534,13 +534,13 @@ bool CFileItem::IsKaraoke() const
 
 bool CFileItem::IsPicture() const
 {
+  if( m_mimetype.Left(6).Equals("image/") )
+    return true;
+
   if (HasPictureInfoTag()) return true;
   if (HasMusicInfoTag()) return false;
   if (HasVideoInfoTag()) return false;
 
-  if( m_mimetype.Left(6).Equals("image/") )
-    return true;
-
   return CUtil::IsPicture(m_strPath);
 }