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-rw-r--r--src/blind-vector-projection.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/blind-vector-projection.c b/src/blind-vector-projection.c
index a285846..8d65738 100644
--- a/src/blind-vector-projection.c
+++ b/src/blind-vector-projection.c
@@ -37,6 +37,9 @@ main(int argc, char *argv[])
eopen_stream(&right, argv[0]);
SELECT_PROCESS_FUNCTION(&left);
+ CHECK_ALPHA_CHAN(&left);
+ CHECK_N_CHAN(&left, 4, 4);
+
fprint_stream_head(stdout, &left);
efflush(stdout, "<stdout>");
process_two_streams(&left, &right, STDOUT_FILENO, "<stdout>", process);