Move dead submodules in-tree

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

1 files changed, 52 insertions, 0 deletions

diff --git a/externals/oboe/src/flowgraph/ChannelCountConverter.cpp b/externals/oboe/src/flowgraph/ChannelCountConverter.cpp
new file mode 100644
index 0000000000..dc804277d5
--- /dev/null
+++ b/externals/oboe/src/flowgraph/ChannelCountConverter.cpp
@@ -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.
+ */
+
+#include <unistd.h>
+#include "FlowGraphNode.h"
+#include "ChannelCountConverter.h"
+
+using namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph;
+
+ChannelCountConverter::ChannelCountConverter(
+        int32_t inputChannelCount,
+        int32_t outputChannelCount)
+        : input(*this, inputChannelCount)
+        , output(*this, outputChannelCount) {
+}
+
+ChannelCountConverter::~ChannelCountConverter() = default;
+
+int32_t ChannelCountConverter::onProcess(int32_t numFrames) {
+    const float *inputBuffer = input.getBuffer();
+    float *outputBuffer = output.getBuffer();
+    int32_t inputChannelCount = input.getSamplesPerFrame();
+    int32_t outputChannelCount = output.getSamplesPerFrame();
+    for (int i = 0; i < numFrames; i++) {
+        int inputChannel = 0;
+        for (int outputChannel = 0; outputChannel < outputChannelCount; outputChannel++) {
+            // Copy input channels to output channels.
+            // Wrap if we run out of inputs.
+            // Discard if we run out of outputs.
+            outputBuffer[outputChannel] = inputBuffer[inputChannel];
+            inputChannel = (inputChannel == inputChannelCount)
+                    ? 0 : inputChannel + 1;
+        }
+        inputBuffer += inputChannelCount;
+        outputBuffer += outputChannelCount;
+    }
+    return numFrames;
+}
+