ffmpeg transcode and avfilter error

Question

FFmpeg configure options:

--enable-avfilter \
--enable-nonfree \
--disable-filters \
--enable-filter=movie \
--enable-filter=overlay \
--enable-filter=null \
--enable-filter=anull \
--enable-filter=scale \
--enable-filter=rotate \

and run success use

filter_spec = "null"; /* passthrough (dummy) filter for video */

and get the transcoding video success! but use

filter_spec = "movie=/storage/emulated/0/image.png [wm]; [in][wm] overlay=10:10 [out]";

then run to

if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
    &inputs, &outputs, NULL)) < 0)
        goto end;

get the error:

Invalid data found when processing input

please help me...