2018-07-28 4:31 GMT+03:00 Michael Niedermayer <mich...@niedermayer.cc>:

> On Fri, Jul 27, 2018 at 08:06:15PM +0300, Sergey Lavrushkin wrote:
> > Hello,
> >
> > The first patch provides on the fly generation of default DNN models,
> > that eliminates data duplication for model weights. Also, files with
> > internal weights
> > were replaced with automatically generated one for models I trained.
> > Scripts for training and generating these files can be found here:
> > https://github.com/HighVoltageRocknRoll/sr
> > Later, I will add a description to this repo on how to use it and
> benchmark
> > results for trained models.
> >
> > The second patch fixes some code style issues for pointers in DNN module
> > and sr filter. Are there any other code style fixes I should make for
> this
> > code?
>
>
> It seems the code with these patches produces some warnings:
>
> In file included from libavfilter/dnn_backend_native.c:27:0:
> libavfilter/dnn_srcnn.h:2113:21: warning: ‘srcnn_consts’ defined but not
> used [-Wunused-variable]
>  static const float *srcnn_consts[] = {
>                      ^
> libavfilter/dnn_srcnn.h:2122:24: warning: ‘srcnn_consts_dims’ defined but
> not used [-Wunused-variable]
>  static const long int *srcnn_consts_dims[] = {
>                         ^
> libavfilter/dnn_srcnn.h:2142:20: warning: ‘srcnn_activations’ defined but
> not used [-Wunused-variable]
>  static const char *srcnn_activations[] = {
>                     ^
> In file included from libavfilter/dnn_backend_native.c:28:0:
> libavfilter/dnn_espcn.h:5401:21: warning: ‘espcn_consts’ defined but not
> used [-Wunused-variable]
>  static const float *espcn_consts[] = {
>                      ^
> libavfilter/dnn_espcn.h:5410:24: warning: ‘espcn_consts_dims’ defined but
> not used [-Wunused-variable]
>  static const long int *espcn_consts_dims[] = {
>                         ^
> libavfilter/dnn_espcn.h:5432:20: warning: ‘espcn_activations’ defined but
> not used [-Wunused-variable]
>  static const char *espcn_activations[] = {
>                     ^
>

Here is the patch, that fixes these warnings.
From 37cd7bdf2610e1c3e89210a49e8f5f3832726281 Mon Sep 17 00:00:00 2001
From: Sergey Lavrushkin <dual...@gmail.com>
Date: Sat, 28 Jul 2018 12:55:02 +0300
Subject: [PATCH 3/3] libavfilter: Fixes warnings for unused variables in
 dnn_srcnn.h, dnn_espcn.h, dnn_backend_tf.c.

---
 libavfilter/dnn_backend_tf.c | 64 +++++++++++++++++++++++++++++++++++++++++++-
 libavfilter/dnn_espcn.h      | 37 -------------------------
 libavfilter/dnn_srcnn.h      | 35 ------------------------
 3 files changed, 63 insertions(+), 73 deletions(-)

diff --git a/libavfilter/dnn_backend_tf.c b/libavfilter/dnn_backend_tf.c
index 6307c794a5..7a4ad72d27 100644
--- a/libavfilter/dnn_backend_tf.c
+++ b/libavfilter/dnn_backend_tf.c
@@ -374,9 +374,71 @@ DNNModel *ff_dnn_load_default_model_tf(DNNDefaultModel model_type)
     TFModel *tf_model = NULL;
     TF_OperationDescription *op_desc;
     TF_Operation *op;
-    TF_Operation *const_ops_buffer[6];
     TF_Output input;
     int64_t input_shape[] = {1, -1, -1, 1};
+    const char tanh[] = "Tanh";
+    const char sigmoid[] = "Sigmoid";
+    const char relu[] = "Relu";
+
+    const float *srcnn_consts[] = {
+        srcnn_conv1_kernel,
+        srcnn_conv1_bias,
+        srcnn_conv2_kernel,
+        srcnn_conv2_bias,
+        srcnn_conv3_kernel,
+        srcnn_conv3_bias
+    };
+    const long int *srcnn_consts_dims[] = {
+        srcnn_conv1_kernel_dims,
+        srcnn_conv1_bias_dims,
+        srcnn_conv2_kernel_dims,
+        srcnn_conv2_bias_dims,
+        srcnn_conv3_kernel_dims,
+        srcnn_conv3_bias_dims
+    };
+    const int srcnn_consts_dims_len[] = {
+        4,
+        1,
+        4,
+        1,
+        4,
+        1
+    };
+    const char *srcnn_activations[] = {
+        relu,
+        relu,
+        relu
+    };
+
+    const float *espcn_consts[] = {
+        espcn_conv1_kernel,
+        espcn_conv1_bias,
+        espcn_conv2_kernel,
+        espcn_conv2_bias,
+        espcn_conv3_kernel,
+        espcn_conv3_bias
+    };
+    const long int *espcn_consts_dims[] = {
+        espcn_conv1_kernel_dims,
+        espcn_conv1_bias_dims,
+        espcn_conv2_kernel_dims,
+        espcn_conv2_bias_dims,
+        espcn_conv3_kernel_dims,
+        espcn_conv3_bias_dims
+    };
+    const int espcn_consts_dims_len[] = {
+        4,
+        1,
+        4,
+        1,
+        4,
+        1
+    };
+    const char *espcn_activations[] = {
+        tanh,
+        tanh,
+        sigmoid
+    };
 
     input.index = 0;
 
diff --git a/libavfilter/dnn_espcn.h b/libavfilter/dnn_espcn.h
index a0dd61cd0d..9344aa90fe 100644
--- a/libavfilter/dnn_espcn.h
+++ b/libavfilter/dnn_espcn.h
@@ -5398,41 +5398,4 @@ static const long int espcn_conv3_bias_dims[] = {
     4
 };
 
-static const float *espcn_consts[] = {
-    espcn_conv1_kernel,
-    espcn_conv1_bias,
-    espcn_conv2_kernel,
-    espcn_conv2_bias,
-    espcn_conv3_kernel,
-    espcn_conv3_bias
-};
-
-static const long int *espcn_consts_dims[] = {
-    espcn_conv1_kernel_dims,
-    espcn_conv1_bias_dims,
-    espcn_conv2_kernel_dims,
-    espcn_conv2_bias_dims,
-    espcn_conv3_kernel_dims,
-    espcn_conv3_bias_dims
-};
-
-static const int espcn_consts_dims_len[] = {
-    4,
-    1,
-    4,
-    1,
-    4,
-    1
-};
-
-static const char espcn_tanh[] = "Tanh";
-
-static const char espcn_sigmoid[] = "Sigmoid";
-
-static const char *espcn_activations[] = {
-    espcn_tanh,
-    espcn_tanh,
-    espcn_sigmoid
-};
-
 #endif
diff --git a/libavfilter/dnn_srcnn.h b/libavfilter/dnn_srcnn.h
index 26143654b8..4f5332ce18 100644
--- a/libavfilter/dnn_srcnn.h
+++ b/libavfilter/dnn_srcnn.h
@@ -2110,39 +2110,4 @@ static const long int srcnn_conv3_bias_dims[] = {
     1
 };
 
-static const float *srcnn_consts[] = {
-    srcnn_conv1_kernel,
-    srcnn_conv1_bias,
-    srcnn_conv2_kernel,
-    srcnn_conv2_bias,
-    srcnn_conv3_kernel,
-    srcnn_conv3_bias
-};
-
-static const long int *srcnn_consts_dims[] = {
-    srcnn_conv1_kernel_dims,
-    srcnn_conv1_bias_dims,
-    srcnn_conv2_kernel_dims,
-    srcnn_conv2_bias_dims,
-    srcnn_conv3_kernel_dims,
-    srcnn_conv3_bias_dims
-};
-
-static const int srcnn_consts_dims_len[] = {
-    4,
-    1,
-    4,
-    1,
-    4,
-    1
-};
-
-static const char srcnn_relu[] = "Relu";
-
-static const char *srcnn_activations[] = {
-    srcnn_relu,
-    srcnn_relu,
-    srcnn_relu
-};
-
 #endif
-- 
2.14.1

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