mlp_parser: Fix memleak.

ff_combine_frame() is called, which allocates ParseContext->buffer if needed,
so ff_parse_close() must be called to free it.
Patch by jai.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@22005 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/mlp_parser.c

@@ -293,5 +293,5 @@ AVCodecParser mlp_parser = {
     sizeof(MLPParseContext),
     mlp_init,
     mlp_parse,
-    NULL,
+    ff_parse_close,
 };