defs: fix defs

diff --git a/win32/common/libgstreamer.def b/win32/common/libgstreamer.def
index f1dd76c..d6a5baf 100644 (file)
--- a/win32/common/libgstreamer.def
+++ b/win32/common/libgstreamer.def
@@ -142,6 +142,7 @@ EXPORTS
        gst_buffer_set_size
        gst_buffer_span
        gst_buffer_take_memory
+       gst_buffer_trim
        gst_buffer_try_new_and_alloc
        gst_buffer_unmap
        gst_buffering_mode_get_type