1 files changed, 7 insertions, 0 deletions
diff --git a/libavutil/pca.c b/libavutil/pca.c
index 6801d91540..3690a4ceab 100644
--- a/libavutil/pca.c
+++ b/libavutil/pca.c
@@ -26,6 +26,13 @@
 #include "common.h"
 #include "pca.h"
 
+typedef struct PCA{
+    int count;
+    int n;
+    double *covariance;
+    double *mean;
+}PCA;
+
 PCA *ff_pca_init(int n){
     PCA *pca;
     if(n<=0)