dsputil: add vector_fmac_scalar()

Signed-off-by: Mans Rullgard <mans@mansr.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 4d783cf266..73830f8190 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -424,6 +424,17 @@ typedef struct DSPContext {
     void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
                                int len);
     /**
+     * Multiply a vector of floats by a scalar float and add to
+     * destination vector.  Source and destination vectors must
+     * overlap exactly or not at all.
+     * @param dst result vector, 16-byte aligned
+     * @param src input vector, 16-byte aligned
+     * @param mul scalar value
+     * @param len length of vector, multiple of 4
+     */
+    void (*vector_fmac_scalar)(float *dst, const float *src, float mul,
+                               int len);
+    /**
      * Calculate the scalar product of two vectors of floats.
      * @param v1  first vector, 16-byte aligned
      * @param v2  second vector, 16-byte aligned