* @param matrix 9-item affine transformation matrix
* @param interpolate pixel interpolation method
* @param fill edge fill method
+ * @return negative on error
*/
-void avfilter_transform(const uint8_t *src, uint8_t *dst,
+int avfilter_transform(const uint8_t *src, uint8_t *dst,
int src_stride, int dst_stride,
int width, int height, const float *matrix,
enum InterpolateMethod interpolate,