Adds dnn inference module for simple convolutional networks. Reimplements srcnn filter based on it.

Signed-off-by: Pedro Arthur <bygrandao@gmail.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/libavfilter/dnn_interface.c b/libavfilter/dnn_interface.c
new file mode 100644
index 0000000..e981829
--- /dev/null
+++ b/libavfilter/dnn_interface.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2018 Sergey Lavrushkin
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Implements DNN module initialization with specified backend.
+ */
+
+#include "dnn_interface.h"
+#include "dnn_backend_native.h"
+#include "libavutil/mem.h"
+
+DNNModule* ff_get_dnn_module(DNNBackendType backend_type)
+{
+    DNNModule* dnn_module;
+
+    dnn_module = av_malloc(sizeof(DNNModule));
+    if(!dnn_module){
+        return NULL;
+    }
+
+    switch(backend_type){
+    case DNN_NATIVE:
+        dnn_module->load_model = &ff_dnn_load_model_native;
+        dnn_module->load_default_model = &ff_dnn_load_default_model_native;
+        dnn_module->execute_model = &ff_dnn_execute_model_native;
+        dnn_module->free_model = &ff_dnn_free_model_native;
+    }
+
+    return dnn_module;
+}