possible_mplayer_udp_fix.diff

diff --git a/libavformat/udp.c b/libavformat/udp.c
index a61ac33..c982245 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -784,10 +784,11 @@ static int udp_read(URLContext *h, uint8_t *buf, int size)
                 av_fifo_generic_read(s->fifo, tmp, 4, NULL);
                 avail= AV_RL32(tmp);
                 if(avail > size){
-                    av_log(h, AV_LOG_WARNING, "Part of datagram lost due to insufficient buffer size\n");
-                    avail= size;
+                    av_log(h, AV_LOG_WARNING, "requested too small of datagram\n"); // comment this out if too chatty
+                    //avail= size;
+                    return -10040; // windows equiv. of "out of space" or something, any negative number here will do.  Really what we're doing here is telling mplayer "ok, you've reached the bottom of your cache, give up now!" work around...
                 }
-
+            
                 av_fifo_generic_read(s->fifo, buf, avail, NULL);
                 av_fifo_drain(s->fifo, AV_RL32(tmp) - avail);
                 pthread_mutex_unlock(&s->mutex);