Add AudioInput class

Author: adazem009

src/audio/CMakeLists.txt

@@ -19,6 +19,9 @@ target_sources(scratchcpp-audio
     iaudiooutput.h
     audiooutput.cpp
     audiooutput.h
+    iaudioinput.h
+    audioinput.h
+    audioinput.cpp
     iaudioloudness.h
 )
 

src/audio/audioinput.cpp

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#include "audioinput.h"
+
+#ifdef LIBSCRATCHCPP_AUDIO_SUPPORT
+#include "internal/audioloudness.h"
+#else
+#include "internal/audioloudnessstub.h"
+#endif
+
+using namespace libscratchcpp;
+
+std::shared_ptr<IAudioInput> AudioInput::m_instance = std::make_shared<AudioInput>();
+
+AudioInput::AudioInput()
+{
+}
+
+std::shared_ptr<IAudioInput> AudioInput::instance()
+{
+    return m_instance;
+}
+
+std::shared_ptr<IAudioLoudness> AudioInput::audioLoudness() const
+{
+    if (!m_audioLoudness) {
+#ifdef LIBSCRATCHCPP_AUDIO_SUPPORT
+        m_audioLoudness = std::make_shared<AudioLoudness>();
+#else
+        m_audioLoudness = std::make_shared<AudioLoudnessStub>();
+#endif
+    }
+
+    return m_audioLoudness;
+}

src/audio/audioinput.h

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <memory>
+
+#include "iaudioinput.h"
+
+namespace libscratchcpp
+{
+
+class AudioInput : public IAudioInput
+{
+    public:
+        AudioInput();
+
+        static std::shared_ptr<IAudioInput> instance();
+
+        std::shared_ptr<IAudioLoudness> audioLoudness() const override;
+
+    private:
+        static std::shared_ptr<IAudioInput> m_instance;
+
+        mutable std::shared_ptr<IAudioLoudness> m_audioLoudness;
+};
+
+} // namespace libscratchcpp

src/audio/iaudioinput.h

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <memory>
+
+namespace libscratchcpp
+{
+
+class IAudioLoudness;
+
+class IAudioInput
+{
+
+    public:
+        virtual ~IAudioInput() { }
+
+        virtual std::shared_ptr<IAudioLoudness> audioLoudness() const = 0;
+};
+
+} // namespace libscratchcpp

test/audio/CMakeLists.txt

@@ -15,3 +15,21 @@ gtest_discover_tests(audiooutput_test)
 if (LIBSCRATCHCPP_AUDIO_SUPPORT)
     target_compile_definitions(audiooutput_test PRIVATE LIBSCRATCHCPP_AUDIO_SUPPORT)
 endif()
+
+# audioinput_test
+add_executable(
+  audioinput_test
+  audioinput_test.cpp
+)
+
+target_link_libraries(
+  audioinput_test
+  GTest::gtest_main
+  scratchcpp
+)
+
+gtest_discover_tests(audioinput_test)
+
+if (LIBSCRATCHCPP_AUDIO_SUPPORT)
+    target_compile_definitions(audioinput_test PRIVATE LIBSCRATCHCPP_AUDIO_SUPPORT)
+endif()

test/audio/audioinput_test.cpp

@@ -0,0 +1,24 @@
+#include <audio/audioinput.h>
+
+#ifdef LIBSCRATCHCPP_AUDIO_SUPPORT
+#include <audio/internal/audioloudness.h>
+#else
+#include <audio/internal/audioloudnessstub.h>
+#endif
+
+#include "../common.h"
+
+using namespace libscratchcpp;
+
+TEST(AudioInputTest, Create)
+{
+    auto factory = AudioInput::instance();
+    std::shared_ptr<IAudioLoudness> audioLoudness = factory->audioLoudness();
+    ASSERT_TRUE(audioLoudness);
+
+#ifdef LIBSCRATCHCPP_AUDIO_SUPPORT
+    ASSERT_TRUE(std::dynamic_pointer_cast<AudioLoudness>(audioLoudness));
+#else
+    ASSERT_TRUE(std::dynamic_pointer_cast<AudioLoudnessStub>(audioLoudness));
+#endif
+}