40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
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#pragma once
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#include <atomic>
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#include <initguid.h>
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#include <audiopolicy.h>
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struct AudioBackend;
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// {8AE52B4A-ACC4-420C-9169-BA8AF07A251F}
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static const GUID IID_DummyIAudioClock = {
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0x8ae52b4a, 0xacc4, 0x420c, { 0x91, 0x69, 0xba, 0x8a, 0xf0, 0x7a, 0x25, 0x1f }
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};
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struct DummyIAudioClock : IAudioClock {
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explicit DummyIAudioClock(AudioBackend *backend) : backend(backend) {
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}
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DummyIAudioClock(const DummyIAudioClock &) = delete;
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DummyIAudioClock &operator=(const DummyIAudioClock &) = delete;
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virtual ~DummyIAudioClock() = default;
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#pragma region IUnknown
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HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
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ULONG STDMETHODCALLTYPE AddRef() override;
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ULONG STDMETHODCALLTYPE Release() override;
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#pragma endregion
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#pragma region IAudioClock
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HRESULT STDMETHODCALLTYPE GetFrequency(UINT64 *pu64Frequency) override;
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HRESULT STDMETHODCALLTYPE GetPosition(UINT64 *pu64Position, UINT64 *pu64QPCPosition) override;
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HRESULT STDMETHODCALLTYPE GetCharacteristics(DWORD *pdwCharacteristics) override;
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#pragma endregion
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AudioBackend *const backend;
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std::atomic<ULONG> ref_cnt = 1;
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};
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