fedced4017
Even if GetActivateResult() succeeded, activation result can fail. Checks output HRESULT code as well Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9468>
97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/* GStreamer
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* Copyright (C) 2025 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <gst/gst.h>
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#include "gstwasapi2util.h"
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#include <wrl.h>
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#include <atomic>
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#include <string>
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#include <mutex>
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/* Copy of audioclientactivationparams.h since those types are defined only for
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* NTDDI_VERSION >= NTDDI_WIN10_FE */
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#define VIRTUAL_AUDIO_DEVICE_PROCESS_LOOPBACK L"VAD\\Process_Loopback"
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typedef enum
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{
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PROCESS_LOOPBACK_MODE_INCLUDE_TARGET_PROCESS_TREE = 0,
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PROCESS_LOOPBACK_MODE_EXCLUDE_TARGET_PROCESS_TREE = 1
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} PROCESS_LOOPBACK_MODE;
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typedef struct
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{
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DWORD TargetProcessId;
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PROCESS_LOOPBACK_MODE ProcessLoopbackMode;
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} AUDIOCLIENT_PROCESS_LOOPBACK_PARAMS;
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typedef enum
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{
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AUDIOCLIENT_ACTIVATION_TYPE_DEFAULT = 0,
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AUDIOCLIENT_ACTIVATION_TYPE_PROCESS_LOOPBACK = 1
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} AUDIOCLIENT_ACTIVATION_TYPE;
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typedef struct
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{
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AUDIOCLIENT_ACTIVATION_TYPE ActivationType;
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union
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{
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AUDIOCLIENT_PROCESS_LOOPBACK_PARAMS ProcessLoopbackParams;
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} DUMMYUNIONNAME;
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} AUDIOCLIENT_ACTIVATION_PARAMS;
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/* End of audioclientactivationparams.h */
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DEFINE_GUID (IID_Wasapi2ActivationHandler, 0xaa7e8f85, 0x211e,
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0x42cc, 0x8c, 0x86, 0x99, 0x83, 0x5b, 0xef, 0x54, 0x86);
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class Wasapi2ActivationHandler :
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public IActivateAudioInterfaceCompletionHandler
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{
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public:
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static void CreateInstance (Wasapi2ActivationHandler ** handler,
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const wchar_t * device_id,
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const AUDIOCLIENT_ACTIVATION_PARAMS * params);
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STDMETHODIMP_ (ULONG) AddRef (void);
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STDMETHODIMP_ (ULONG) Release (void);
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STDMETHODIMP QueryInterface (REFIID riid, void ** object);
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STDMETHODIMP ActivateCompleted (IActivateAudioInterfaceAsyncOperation * op);
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HRESULT ActivateAsync (void);
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HRESULT GetClient (IAudioClient ** client, DWORD timeout);
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private:
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Wasapi2ActivationHandler ();
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virtual ~Wasapi2ActivationHandler ();
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private:
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Microsoft::WRL::ComPtr<IAudioClient> client_;
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std::atomic<HRESULT> activate_hr_ = { E_FAIL };
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std::mutex lock_;
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HANDLE event_;
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PROPVARIANT prop_ = { };
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AUDIOCLIENT_ACTIVATION_PARAMS params_ = { };
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bool have_params_ = false;
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std::wstring device_id_;
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ULONG refcount_ = 1;
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};
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