celt: fix compile against earlier CELT versions

Check the existence of the CELT_SET_COMPLEXITY symbol
before trying to use it. Fixes compilation against
libcelt 0.4.0.

Fixes #604311.

diff --git a/ext/celt/gstceltenc.c b/ext/celt/gstceltenc.c
index f160b97..d984d99 100644 (file)
--- a/ext/celt/gstceltenc.c
+++ b/ext/celt/gstceltenc.c
@@ -623,7 +623,9 @@ gst_celt_enc_setup (GstCeltEnc * enc)
     celt_encoder_ctl (enc->state, CELT_SET_VBR_RATE (enc->bitrate), 0);
   }
 #endif
+#ifdef CELT_SET_COMPLEXITY
   celt_encoder_ctl (enc->state, CELT_SET_COMPLEXITY (enc->complexity), 0);
+#endif
 
   GST_LOG_OBJECT (enc, "we have frame size %d", enc->frame_size);