1 files changed, 0 insertions, 108 deletions
diff --git a/externals/oboe/src/common/LatencyTuner.cpp b/externals/oboe/src/common/LatencyTuner.cpp
deleted file mode 100644
index 0ac29750bb..0000000000
--- a/externals/oboe/src/common/LatencyTuner.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * 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.
- */
-
-#include "oboe/LatencyTuner.h"
-
-using namespace oboe;
-
-LatencyTuner::LatencyTuner(AudioStream &stream)
-        : LatencyTuner(stream, stream.getBufferCapacityInFrames()) {
-}
-
-LatencyTuner::LatencyTuner(oboe::AudioStream &stream, int32_t maximumBufferSize)
-        : mStream(stream)
-        , mMaxBufferSize(maximumBufferSize) {
-    int32_t burstSize = stream.getFramesPerBurst();
-    setMinimumBufferSize(kDefaultNumBursts * burstSize);
-    setBufferSizeIncrement(burstSize);
-    reset();
-}
-
-Result LatencyTuner::tune() {
-    if (mState == State::Unsupported) {
-        return Result::ErrorUnimplemented;
-    }
-
-    Result result = Result::OK;
-
-    // Process reset requests.
-    int32_t numRequests = mLatencyTriggerRequests.load();
-    if (numRequests != mLatencyTriggerResponses.load()) {
-        mLatencyTriggerResponses.store(numRequests);
-        reset();
-    }
-
-    // Set state to Active if the idle countdown has reached zero.
-    if (mState == State::Idle && --mIdleCountDown <= 0) {
-        mState = State::Active;
-    }
-
-    // When state is Active attempt to change the buffer size if the number of xRuns has increased.
-    if (mState == State::Active) {
-
-        auto xRunCountResult = mStream.getXRunCount();
-        if (xRunCountResult == Result::OK) {
-            if ((xRunCountResult.value() - mPreviousXRuns) > 0) {
-                mPreviousXRuns = xRunCountResult.value();
-                int32_t oldBufferSize = mStream.getBufferSizeInFrames();
-                int32_t requestedBufferSize = oldBufferSize + getBufferSizeIncrement();
-
-                // Do not request more than the maximum buffer size (which was either user-specified
-                // or was from stream->getBufferCapacityInFrames())
-                if (requestedBufferSize > mMaxBufferSize) requestedBufferSize = mMaxBufferSize;
-
-                // Note that this will not allocate more memory. It simply determines
-                // how much of the existing buffer capacity will be used. The size will be
-                // clipped to the bufferCapacity by AAudio.
-                auto setBufferResult = mStream.setBufferSizeInFrames(requestedBufferSize);
-                if (setBufferResult != Result::OK) {
-                    result = setBufferResult;
-                    mState = State::Unsupported;
-                } else if (setBufferResult.value() == oldBufferSize) {
-                    mState = State::AtMax;
-                }
-            }
-        } else {
-            mState = State::Unsupported;
-        }
-    }
-
-    if (mState == State::Unsupported) {
-        result = Result::ErrorUnimplemented;
-    }
-
-    if (mState == State::AtMax) {
-        result = Result::OK;
-    }
-    return result;
-}
-
-void LatencyTuner::requestReset() {
-    if (mState != State::Unsupported) {
-        mLatencyTriggerRequests++;
-    }
-}
-
-void LatencyTuner::reset() {
-    mState = State::Idle;
-    mIdleCountDown = kIdleCount;
-    // Set to minimal latency
-    mStream.setBufferSizeInFrames(getMinimumBufferSize());
-}
-
-bool LatencyTuner::isAtMaximumBufferSize() {
-    return mState == State::AtMax;
-}