Move dead submodules in-tree

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

externals/oboe/samples/hello-oboe/src/main/cpp/LatencyTuningCallback.h

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+/**
+ * Copyright 2017 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 SAMPLES_LATENCY_TUNING_CALLBACK_H
+#define SAMPLES_LATENCY_TUNING_CALLBACK_H
+
+#include <oboe/Oboe.h>
+#include <oboe/LatencyTuner.h>
+
+#include <TappableAudioSource.h>
+#include <DefaultDataCallback.h>
+#include <trace.h>
+
+/**
+ * This callback object extends the functionality of `DefaultDataCallback` by automatically
+ * tuning the latency of the audio stream. @see onAudioReady for more details on this.
+ *
+ * It also demonstrates how to use tracing functions for logging inside the audio callback without
+ * blocking.
+ */
+class LatencyTuningCallback: public DefaultDataCallback {
+public:
+    LatencyTuningCallback() : DefaultDataCallback() {
+
+        // Initialize the trace functions, this enables you to output trace statements without
+        // blocking. See https://developer.android.com/studio/profile/systrace-commandline.html
+        Trace::initialize();
+    }
+
+    /**
+     * Every time the playback stream requires data this method will be called.
+     *
+     * @param audioStream the audio stream which is requesting data, this is the mPlayStream object
+     * @param audioData an empty buffer into which we can write our audio data
+     * @param numFrames the number of audio frames which are required
+     * @return Either oboe::DataCallbackResult::Continue if the stream should continue requesting data
+     * or oboe::DataCallbackResult::Stop if the stream should stop.
+     */
+    oboe::DataCallbackResult onAudioReady(oboe::AudioStream *oboeStream, void *audioData, int32_t numFrames) override;
+
+    void setBufferTuneEnabled(bool enabled) {mBufferTuneEnabled = enabled;}
+
+    void useStream(std::shared_ptr<oboe::AudioStream>  stream);
+
+private:
+    bool mBufferTuneEnabled = true;
+
+    // This will be used to automatically tune the buffer size of the stream, obtaining optimal latency
+    std::unique_ptr<oboe::LatencyTuner> mLatencyTuner;
+    oboe::AudioStream  *mStream = nullptr;
+};
+
+#endif //SAMPLES_LATENCY_TUNING_CALLBACK_H