MP4 support v2 (undebugged). This replaces callouts to faad with use of libfaad (aka neaacdec) and loads all components dynamically, much like existing MP1/2/3 support.

lib/rdwavefile.h

@@ -1241,6 +1241,10 @@ class RDWaveFile
    ogg_page ogg_pg;
    ogg_packet ogg_pack;
 #endif  // HAVE_VORBIS
+#ifdef HAVE_MP4_LIBS
+   DLMP4 dlmp4;
+#endif
+
 };