memory leak when handling ogg flac, and make sure that moving listeners

to theora streams triggers a search for a keyframe.

svn path=/icecast/trunk/icecast/; revision=11004

src/format.c

@@ -93,8 +93,11 @@ static void find_client_start (source_t *source, client_t *client)
 {
     refbuf_t *refbuf = source->burst_point;
 
-    /* we only want to attempt a burst at connection time, not midstream */
-    if (client->intro_offset == -1)
+    /* we only want to attempt a burst at connection time, not midstream 
+     * however streams like theora may not have the most recent page marked as
+     * a starting point, so look for one from the burst point */
+    if (client->intro_offset == -1 && source->stream_data_tail
+            && source->stream_data_tail->sync_point)
         refbuf = source->stream_data_tail;
     else
     {

src/format_flac.c

@@ -46,14 +46,14 @@ static refbuf_t *process_flac_page (ogg_state_t *ogg_info, ogg_codec_t *codec, o
 {
     refbuf_t * refbuf;
 
-    if (ogg_stream_pagein (&codec->os, page) < 0)
-    {
-        ogg_info->error = 1;
-        return NULL;
-    }
     if (codec->headers)
     {
         ogg_packet packet;
+        if (ogg_stream_pagein (&codec->os, page) < 0)
+        {
+            ogg_info->error = 1;
+            return NULL;
+        }
         while (ogg_stream_packetout (&codec->os, &packet))
         {
             int type = packet.packet[0];