Move frontend-common to util/core

src/util/cubeb_audio_stream.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
+
+#pragma once
+
+#include "audio_stream.h"
+
+#include <cstdint>
+
+struct cubeb;
+struct cubeb_stream;
+
+class CubebAudioStream : public AudioStream
+{
+public:
+  CubebAudioStream(u32 sample_rate, u32 channels, u32 buffer_ms, AudioStretchMode stretch);
+  ~CubebAudioStream();
+
+  void SetPaused(bool paused) override;
+  void SetOutputVolume(u32 volume) override;
+
+  bool Initialize(u32 latency_ms);
+
+private:
+  static void LogCallback(const char* fmt, ...);
+  static long DataCallback(cubeb_stream* stm, void* user_ptr, const void* input_buffer, void* output_buffer,
+                           long nframes);
+
+  void DestroyContextAndStream();
+
+  cubeb* m_context = nullptr;
+  cubeb_stream* stream = nullptr;
+
+#ifdef _WIN32
+  bool m_com_initialized_by_us = false;
+#endif
+};