Fixes a fixed-point issue introduced in a18ba8a
diff --git a/src/opus_multistream_encoder.c b/src/opus_multistream_encoder.c
index 6ea4456..d6db70f 100644
--- a/src/opus_multistream_encoder.c
+++ b/src/opus_multistream_encoder.c
@@ -923,7 +923,7 @@
 )
 {
    return opus_multistream_encode_native(st, opus_copy_channel_in_short,
-      pcm, frame_size, data, max_data_bytes, 16, downmix_int);
+      pcm, frame_size, data, max_data_bytes, 16, downmix_int, 0);
 }
 
 #ifndef DISABLE_FLOAT_API
@@ -936,7 +936,7 @@
 )
 {
    return opus_multistream_encode_native(st, opus_copy_channel_in_float,
-      pcm, frame_size, data, max_data_bytes, 16, downmix_float);
+      pcm, frame_size, data, max_data_bytes, 16, downmix_float, 1);
 }
 #endif