1 files changed, 75 insertions, 0 deletions
diff --git a/externals/oboe/apps/OboeTester/app/src/main/cpp/TestErrorCallback.cpp b/externals/oboe/apps/OboeTester/app/src/main/cpp/TestErrorCallback.cpp
new file mode 100644
index 0000000000..ce4285f5c9
--- /dev/null
+++ b/externals/oboe/apps/OboeTester/app/src/main/cpp/TestErrorCallback.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2022 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 <stdlib.h>
+
+#include "common/OboeDebug.h"
+#include "TestErrorCallback.h"
+
+using namespace oboe;
+
+oboe::Result TestErrorCallback::open() {
+    mCallbackMagic = 0;
+    mDataCallback = std::make_shared<MyDataCallback>();
+    mErrorCallback = std::make_shared<MyErrorCallback>(this);
+    AudioStreamBuilder builder;
+    oboe::Result result = builder.setSharingMode(oboe::SharingMode::Exclusive)
+            ->setPerformanceMode(oboe::PerformanceMode::LowLatency)
+            ->setFormat(oboe::AudioFormat::Float)
+            ->setChannelCount(kChannelCount)
+#if 0
+            ->setDataCallback(mDataCallback.get())
+            ->setErrorCallback(mErrorCallback.get()) // This can lead to a crash or FAIL.
+#else
+            ->setDataCallback(mDataCallback)
+            ->setErrorCallback(mErrorCallback) // shared_ptr avoids a crash
+#endif
+            ->openStream(mStream);
+    return result;
+}
+
+oboe::Result TestErrorCallback::start() {
+    return mStream->requestStart();
+}
+
+oboe::Result TestErrorCallback::stop() {
+    return mStream->requestStop();
+}
+
+oboe::Result TestErrorCallback::close() {
+    return mStream->close();
+}
+
+int TestErrorCallback::test() {
+    oboe::Result result = open();
+    if (result != oboe::Result::OK) {
+        return (int) result;
+    }
+    return (int) start();
+}
+
+DataCallbackResult TestErrorCallback::MyDataCallback::onAudioReady(
+        AudioStream *audioStream,
+        void *audioData,
+        int32_t numFrames) {
+    float *output = (float *) audioData;
+    // Fill buffer with random numbers to create "white noise".
+    int numSamples = numFrames * kChannelCount;
+    for (int i = 0; i < numSamples; i++) {
+        *output++ = (float)((drand48() - 0.5) * 0.2);
+    }
+    return oboe::DataCallbackResult::Continue;
+}