libtwolame MP2 encoding support

Signed-off-by: Paul B Mahol <onemda@gmail.com>

libavcodec/allcodecs.c

@@ -434,6 +434,7 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC  (LIBSPEEX, libspeex);
     REGISTER_DECODER (LIBSTAGEFRIGHT_H264, libstagefright_h264);
     REGISTER_ENCODER (LIBTHEORA, libtheora);
+    REGISTER_ENCODER (LIBTWOLAME, libtwolame);
     REGISTER_ENCDEC  (LIBUTVIDEO, libutvideo);
     REGISTER_ENCODER (LIBVO_AACENC, libvo_aacenc);
     REGISTER_ENCODER (LIBVO_AMRWBENC, libvo_amrwbenc);