1 files changed, 69 insertions, 0 deletions
diff --git a/files/source/scale.cc b/files/source/scale.cc
index a8db93fd..ab085496 100644
--- a/files/source/scale.cc
+++ b/files/source/scale.cc
@@ -1788,6 +1788,75 @@ int I420Scale_16(const uint16_t* src_y,
   return 0;
 }
 
+// Scale an I444 image.
+// This function in turn calls a scaling function for each plane.
+
+LIBYUV_API
+int I444Scale(const uint8_t* src_y,
+              int src_stride_y,
+              const uint8_t* src_u,
+              int src_stride_u,
+              const uint8_t* src_v,
+              int src_stride_v,
+              int src_width,
+              int src_height,
+              uint8_t* dst_y,
+              int dst_stride_y,
+              uint8_t* dst_u,
+              int dst_stride_u,
+              uint8_t* dst_v,
+              int dst_stride_v,
+              int dst_width,
+              int dst_height,
+              enum FilterMode filtering) {
+  if (!src_y || !src_u || !src_v || src_width == 0 || src_height == 0 ||
+      src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v ||
+      dst_width <= 0 || dst_height <= 0) {
+    return -1;
+  }
+
+  ScalePlane(src_y, src_stride_y, src_width, src_height, dst_y, dst_stride_y,
+             dst_width, dst_height, filtering);
+  ScalePlane(src_u, src_stride_u, src_width, src_height, dst_u, dst_stride_u,
+             dst_width, dst_height, filtering);
+  ScalePlane(src_v, src_stride_v, src_width, src_height, dst_v, dst_stride_v,
+             dst_width, dst_height, filtering);
+  return 0;
+}
+
+LIBYUV_API
+int I444Scale_16(const uint16_t* src_y,
+                 int src_stride_y,
+                 const uint16_t* src_u,
+                 int src_stride_u,
+                 const uint16_t* src_v,
+                 int src_stride_v,
+                 int src_width,
+                 int src_height,
+                 uint16_t* dst_y,
+                 int dst_stride_y,
+                 uint16_t* dst_u,
+                 int dst_stride_u,
+                 uint16_t* dst_v,
+                 int dst_stride_v,
+                 int dst_width,
+                 int dst_height,
+                 enum FilterMode filtering) {
+  if (!src_y || !src_u || !src_v || src_width == 0 || src_height == 0 ||
+      src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v ||
+      dst_width <= 0 || dst_height <= 0) {
+    return -1;
+  }
+
+  ScalePlane_16(src_y, src_stride_y, src_width, src_height, dst_y, dst_stride_y,
+                dst_width, dst_height, filtering);
+  ScalePlane_16(src_u, src_stride_u, src_width, src_height, dst_u, dst_stride_u,
+                dst_width, dst_height, filtering);
+  ScalePlane_16(src_v, src_stride_v, src_width, src_height, dst_v, dst_stride_v,
+                dst_width, dst_height, filtering);
+  return 0;
+}
+
 // Deprecated api
 LIBYUV_API
 int Scale(const uint8_t* src_y,