caffe2fluid: repair scale

caffe2fluid/kaffe/paddle/network.py

@@ -525,16 +525,30 @@ class Network(object):
             num_axes)
 
         prefix = name + '_'
-        scale_shape = input.shape[axis:axis + num_axes]
-        param_attr = fluid.ParamAttr(name=prefix + 'scale')
-        scale_param = fluid.layers.create_parameter(
-            shape=scale_shape,
-            dtype=input.dtype,
-            name=name,
-            attr=param_attr,
-            is_bias=True,
-            default_initializer=fluid.initializer.Constant(value=1.0))
+        if isinstance(input, list) and len(input) == 2:
+            # for two tensor, here resets axis to 1. Maybe there is a bug for unkown case.
+            axis = 1
+            output_shape = input[0].shape[axis:axis + num_axes]
+            scale_param = input[1]
+            input = input[0]
+        else:
+            output_shape = input.shape[axis:axis + num_axes]
+            param_attr = fluid.ParamAttr(name=prefix + 'scale')
+            scale_param = fluid.layers.create_parameter(
+                shape=output_shape,
+                dtype=input.dtype,
+                name=name,
+                attr=param_attr,
+                is_bias=True,
+                default_initializer=fluid.initializer.Constant(value=1.0))
+
+        output = fluid.layers.elementwise_mul(
+            input,
+            scale_param,
+            axis=axis,
+            name=self.get_unique_output_name(name, 'scale_mul'))
 
+        scale_shape = output_shape
         offset_attr = fluid.ParamAttr(name=prefix + 'offset')
         offset_param = fluid.layers.create_parameter(
             shape=scale_shape,
@@ -544,11 +558,6 @@ class Network(object):
             is_bias=True,
             default_initializer=fluid.initializer.Constant(value=0.0))
 
-        output = fluid.layers.elementwise_mul(
-            input,
-            scale_param,
-            axis=axis,
-            name=self.get_unique_output_name(name, 'scale_mul'))
         output = fluid.layers.elementwise_add(
             output,
             offset_param,