1 files changed, 61 insertions, 0 deletions
diff --git a/externals/oboe/apps/OboeTester/app/src/main/cpp/FullDuplexStreamWithConversion.cpp b/externals/oboe/apps/OboeTester/app/src/main/cpp/FullDuplexStreamWithConversion.cpp
new file mode 100644
index 0000000000..a6184c3c74
--- /dev/null
+++ b/externals/oboe/apps/OboeTester/app/src/main/cpp/FullDuplexStreamWithConversion.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2023 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 "common/OboeDebug.h"
+#include "FullDuplexStreamWithConversion.h"
+
+oboe::Result FullDuplexStreamWithConversion::start() {
+    // Determine maximum size that could possibly be called.
+    int32_t maxFrames = getOutputStream()->getBufferCapacityInFrames();
+    int32_t inputBufferSize = maxFrames * getInputStream()->getChannelCount();
+    int32_t outputBufferSize = maxFrames * getOutputStream()->getChannelCount();
+    mInputConverter = std::make_unique<FormatConverterBox>(inputBufferSize,
+                                                           getInputStream()->getFormat(),
+                                                           oboe::AudioFormat::Float);
+    mOutputConverter = std::make_unique<FormatConverterBox>(outputBufferSize,
+                                                            oboe::AudioFormat::Float,
+                                                            getOutputStream()->getFormat());
+    return FullDuplexStream::start();
+}
+
+oboe::ResultWithValue<int32_t> FullDuplexStreamWithConversion::readInput(int32_t numFrames) {
+    oboe::ResultWithValue<int32_t> result = getInputStream()->read(
+            mInputConverter->getInputBuffer(),
+            numFrames,
+            0 /* timeout */);
+    if (result == oboe::Result::OK) {
+        int32_t numSamples = result.value() * getInputStream()->getChannelCount();
+        mInputConverter->convertInternalBuffers(numSamples);
+    }
+    return result;
+}
+
+oboe::DataCallbackResult FullDuplexStreamWithConversion::onBothStreamsReady(
+        const void *inputData,
+        int numInputFrames,
+        void *outputData,
+        int numOutputFrames
+) {
+    oboe::DataCallbackResult callbackResult = oboe::DataCallbackResult::Continue;
+    callbackResult = onBothStreamsReadyFloat(
+            static_cast<const float *>(mInputConverter->getOutputBuffer()),
+            numInputFrames,
+            static_cast<float *>(mOutputConverter->getInputBuffer()),
+            numOutputFrames);
+    mOutputConverter->convertFromInternalInput( outputData,
+                                                numOutputFrames * getOutputStream()->getChannelCount());
+    return callbackResult;
+}