add general/never_transcode to specify codectypes that shouldn't be transcoded, even if the client suggests it can't play it (amarok, rhythmbox, others that lie about user-agent)

admin-root/config.xml

@@ -314,5 +314,12 @@
             <short_description></short_description>
             <type size="80">text</type>
         </item>
+        <item id="general:never_transcode">
+            <name>Never Transcode</name>
+            <short_description>
+                Codecs to not transcode, even if plugins are available
+            </short_description>
+            <type size="80">text</type>
+        </item>
     </section>
 </config>

src/conf.c

@@ -123,6 +123,7 @@ static CONF_ELEMENTS conf_elements[] = {
     { 0, 0, CONF_T_STRING,"general","ssc_codectypes" },
     { 0, 0, CONF_T_STRING,"general","ssc_prog" },
     { 0, 0, CONF_T_STRING,"general","password" },
+    { 0, 0, CONF_T_STRING,"general","never_transcode" },
     { 0, 0, CONF_T_MULTICOMMA,"general","compdirs" },
     { 0, 0, CONF_T_STRING,"general","logfile" },
     { 0, 0, CONF_T_EXISTPATH,"plugins","plugin_dir" },

src/plugin.c

@@ -446,12 +446,23 @@ int plugin_ssc_should_transcode(WS_CONNINFO *pwsc, char *codec) {
     int result;
     char *native_codecs=NULL;
     char *user_agent=NULL;
-    
+    char *never_transcode = NULL;
+
     if(!codec) {
         DPRINTF(E_LOG,L_PLUG,"testing transcode on null codec?\n");
         return FALSE;
     }
 
+
+    never_transcode = conf_alloc_string("general","never_transcode",NULL);
+    if(never_transcode) {
+        if(strstr(never_transcode,codec)) {
+            free(never_transcode);
+            return FALSE;
+        }
+        free(never_transcode);
+    }
+
     if(pwsc) {
         /* see if the headers give us any guidance */
         native_codecs = ws_getrequestheader(pwsc,"accept-codecs");