Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/oboe/src/flowgraph/ChannelCountConverter.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLOWGRAPH_CHANNEL_COUNT_CONVERTER_H
+#define FLOWGRAPH_CHANNEL_COUNT_CONVERTER_H
+
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "FlowGraphNode.h"
+
+namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph {
+
+/**
+ * Change the number of number of channels without mixing.
+ * When increasing the channel count, duplicate input channels.
+ * When decreasing the channel count, drop input channels.
+ */
+    class ChannelCountConverter : public FlowGraphNode {
+    public:
+        explicit ChannelCountConverter(
+                int32_t inputChannelCount,
+                int32_t outputChannelCount);
+
+        virtual ~ChannelCountConverter();
+
+        int32_t onProcess(int32_t numFrames) override;
+
+        const char *getName() override {
+            return "ChannelCountConverter";
+        }
+
+        FlowGraphPortFloatInput input;
+        FlowGraphPortFloatOutput output;
+    };
+
+} /* namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph */
+
+#endif //FLOWGRAPH_CHANNEL_COUNT_CONVERTER_H