480 lines
16 KiB
Go
480 lines
16 KiB
Go
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// Copyright 2022 The Oto Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package oto
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import (
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"fmt"
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"runtime"
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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var (
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ole32 = windows.NewLazySystemDLL("ole32")
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)
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var (
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procCoCreateInstance = ole32.NewProc("CoCreateInstance")
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)
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type _REFERENCE_TIME int64
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var (
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uuidIAudioClient2 = windows.GUID{0x726778cd, 0xf60a, 0x4eda, [...]byte{0x82, 0xde, 0xe4, 0x76, 0x10, 0xcd, 0x78, 0xaa}}
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uuidIAudioRenderClient = windows.GUID{0xf294acfc, 0x3146, 0x4483, [...]byte{0xa7, 0xbf, 0xad, 0xdc, 0xa7, 0xc2, 0x60, 0xe2}}
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uuidIMMDeviceEnumerator = windows.GUID{0xa95664d2, 0x9614, 0x4f35, [...]byte{0xa7, 0x46, 0xde, 0x8d, 0xb6, 0x36, 0x17, 0xe6}}
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uuidMMDeviceEnumerator = windows.GUID{0xbcde0395, 0xe52f, 0x467c, [...]byte{0x8e, 0x3d, 0xc4, 0x57, 0x92, 0x91, 0x69, 0x2e}}
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)
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const (
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_AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM = 0x80000000
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_AUDCLNT_STREAMFLAGS_EVENTCALLBACK = 0x00040000
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_AUDCLNT_STREAMFLAGS_NOPERSIST = 0x00080000
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_COINIT_APARTMENTTHREADED = 0x2
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_COINIT_MULTITHREADED = 0
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_REFTIMES_PER_SEC = 10000000
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_SPEAKER_FRONT_CENTER = 0x4
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_SPEAKER_FRONT_LEFT = 0x1
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_SPEAKER_FRONT_RIGHT = 0x2
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_WAVE_FORMAT_EXTENSIBLE = 0xfffe
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)
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var (
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_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT = windows.GUID{0x00000003, 0x0000, 0x0010, [...]byte{0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}
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_KSDATAFORMAT_SUBTYPE_PCM = windows.GUID{0x00000001, 0x0000, 0x0010, [...]byte{0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}
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)
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type _AUDCLNT_ERR uint32
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const (
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_AUDCLNT_E_DEVICE_INVALIDATED _AUDCLNT_ERR = 0x88890004
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_AUDCLNT_E_NOT_INITIALIZED _AUDCLNT_ERR = 0x88890001
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_AUDCLNT_E_RESOURCES_INVALIDATED _AUDCLNT_ERR = 0x88890026
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)
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func isAudclntErr(hresult uint32) bool {
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return hresult&0xffff0000 == (1<<31)|(windows.FACILITY_AUDCLNT<<16)
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}
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func (e _AUDCLNT_ERR) Error() string {
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switch e {
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case _AUDCLNT_E_DEVICE_INVALIDATED:
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return "AUDCLNT_E_DEVICE_INVALIDATED"
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case _AUDCLNT_E_RESOURCES_INVALIDATED:
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return "AUDCLNT_E_RESOURCES_INVALIDATED"
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default:
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return fmt.Sprintf("AUDCLNT_ERR(%d)", e)
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}
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}
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type _AUDCLNT_SHAREMODE int32
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const (
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_AUDCLNT_SHAREMODE_SHARED _AUDCLNT_SHAREMODE = 0
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_AUDCLNT_SHAREMODE_EXCLUSIVE _AUDCLNT_SHAREMODE = 1
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)
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type _AUDCLNT_STREAMOPTIONS int32
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const (
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_AUDCLNT_STREAMOPTIONS_NONE _AUDCLNT_STREAMOPTIONS = 0x0
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_AUDCLNT_STREAMOPTIONS_RAW _AUDCLNT_STREAMOPTIONS = 0x1
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_AUDCLNT_STREAMOPTIONS_MATCH_FORMAT _AUDCLNT_STREAMOPTIONS = 0x2
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_AUDCLNT_STREAMOPTIONS_AMBISONICS _AUDCLNT_STREAMOPTIONS = 0x4
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)
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type _AUDIO_STREAM_CATEGORY int32
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const (
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_AudioCategory_Other _AUDIO_STREAM_CATEGORY = 0
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_AudioCategory_ForegroundOnlyMedia _AUDIO_STREAM_CATEGORY = 1
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_AudioCategory_BackgroundCapableMedia _AUDIO_STREAM_CATEGORY = 2
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_AudioCategory_Communications _AUDIO_STREAM_CATEGORY = 3
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_AudioCategory_Alerts _AUDIO_STREAM_CATEGORY = 4
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_AudioCategory_SoundEffects _AUDIO_STREAM_CATEGORY = 5
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_AudioCategory_GameEffects _AUDIO_STREAM_CATEGORY = 6
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_AudioCategory_GameMedia _AUDIO_STREAM_CATEGORY = 7
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_AudioCategory_GameChat _AUDIO_STREAM_CATEGORY = 8
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_AudioCategory_Speech _AUDIO_STREAM_CATEGORY = 9
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_AudioCategory_Movie _AUDIO_STREAM_CATEGORY = 10
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_AudioCategory_Media _AUDIO_STREAM_CATEGORY = 11
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)
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type _CLSCTX int32
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const (
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_CLSCTX_INPROC_SERVER _CLSCTX = 0x00000001
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_CLSCTX_INPROC_HANDLER _CLSCTX = 0x00000002
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_CLSCTX_LOCAL_SERVER _CLSCTX = 0x00000004
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_CLSCTX_REMOTE_SERVER _CLSCTX = 0x00000010
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_CLSCTX_ALL = _CLSCTX_INPROC_SERVER | _CLSCTX_INPROC_HANDLER | _CLSCTX_LOCAL_SERVER | _CLSCTX_REMOTE_SERVER
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)
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type _EDataFlow int32
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const (
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eRender _EDataFlow = 0
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)
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type _ERole int32
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const (
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eConsole _ERole = 0
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)
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type _WIN32_ERR uint32
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const (
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_E_NOTFOUND _WIN32_ERR = 0x80070490
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)
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func isWin32Err(hresult uint32) bool {
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return hresult&0xffff0000 == (1<<31)|(windows.FACILITY_WIN32<<16)
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}
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func (e _WIN32_ERR) Error() string {
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switch e {
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case _E_NOTFOUND:
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return "E_NOTFOUND"
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default:
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return fmt.Sprintf("HRESULT(%d)", e)
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}
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}
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type _AudioClientProperties struct {
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cbSize uint32
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bIsOffload int32
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eCategory _AUDIO_STREAM_CATEGORY
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Options _AUDCLNT_STREAMOPTIONS
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}
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type _PROPVARIANT struct {
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// TODO: Implmeent this
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}
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type _WAVEFORMATEXTENSIBLE struct {
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wFormatTag uint16
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nChannels uint16
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nSamplesPerSec uint32
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nAvgBytesPerSec uint32
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nBlockAlign uint16
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wBitsPerSample uint16
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cbSize uint16
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Samples uint16 // union
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dwChannelMask uint32
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SubFormat windows.GUID
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}
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func _CoCreateInstance(rclsid *windows.GUID, pUnkOuter unsafe.Pointer, dwClsContext uint32, riid *windows.GUID) (unsafe.Pointer, error) {
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var v unsafe.Pointer
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r, _, _ := procCoCreateInstance.Call(uintptr(unsafe.Pointer(rclsid)), uintptr(pUnkOuter), uintptr(dwClsContext), uintptr(unsafe.Pointer(riid)), uintptr(unsafe.Pointer(&v)))
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runtime.KeepAlive(rclsid)
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runtime.KeepAlive(riid)
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if uint32(r) != uint32(windows.S_OK) {
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return nil, fmt.Errorf("oto: CoCreateInstance failed: HRESULT(%d)", uint32(r))
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}
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return v, nil
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}
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type _IAudioClient2 struct {
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vtbl *_IAudioClient2_Vtbl
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}
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type _IAudioClient2_Vtbl struct {
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QueryInterface uintptr
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AddRef uintptr
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Release uintptr
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Initialize uintptr
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GetBufferSize uintptr
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GetStreamLatency uintptr
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GetCurrentPadding uintptr
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IsFormatSupported uintptr
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GetMixFormat uintptr
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GetDevicePeriod uintptr
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Start uintptr
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Stop uintptr
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Reset uintptr
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SetEventHandle uintptr
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GetService uintptr
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IsOffloadCapable uintptr
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SetClientProperties uintptr
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GetBufferSizeLimits uintptr
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}
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func (i *_IAudioClient2) GetBufferSize() (uint32, error) {
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var numBufferFrames uint32
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r, _, _ := syscall.Syscall(i.vtbl.GetBufferSize, 2, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(&numBufferFrames)), 0)
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return 0, fmt.Errorf("oto: IAudioClient2::GetBufferSize failed: %w", _AUDCLNT_ERR(r))
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}
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return 0, fmt.Errorf("oto: IAudioClient2::GetBufferSize failed: HRESULT(%d)", uint32(r))
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}
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return numBufferFrames, nil
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}
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func (i *_IAudioClient2) GetCurrentPadding() (uint32, error) {
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var numPaddingFrames uint32
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r, _, _ := syscall.Syscall(i.vtbl.GetCurrentPadding, 2, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(&numPaddingFrames)), 0)
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return 0, fmt.Errorf("oto: IAudioClient2::GetCurrentPadding failed: %w", _AUDCLNT_ERR(r))
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}
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return 0, fmt.Errorf("oto: IAudioClient2::GetCurrentPadding failed: HRESULT(%d)", uint32(r))
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}
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return numPaddingFrames, nil
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}
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func (i *_IAudioClient2) GetDevicePeriod() (_REFERENCE_TIME, _REFERENCE_TIME, error) {
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var defaultDevicePeriod _REFERENCE_TIME
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var minimumDevicePeriod _REFERENCE_TIME
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r, _, _ := syscall.Syscall(i.vtbl.GetDevicePeriod, 3, uintptr(unsafe.Pointer(i)),
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uintptr(unsafe.Pointer(&defaultDevicePeriod)), uintptr(unsafe.Pointer(&minimumDevicePeriod)))
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return 0, 0, fmt.Errorf("oto: IAudioClient2::GetDevicePeriod failed: %w", _AUDCLNT_ERR(r))
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}
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return 0, 0, fmt.Errorf("oto: IAudioClient2::GetDevicePeriod failed: HRESULT(%d)", uint32(r))
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}
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return defaultDevicePeriod, minimumDevicePeriod, nil
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}
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func (i *_IAudioClient2) GetService(riid *windows.GUID) (unsafe.Pointer, error) {
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var v unsafe.Pointer
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r, _, _ := syscall.Syscall(i.vtbl.GetService, 3, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(riid)), uintptr(unsafe.Pointer(&v)))
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return nil, fmt.Errorf("oto: IAudioClient2::GetService failed: %w", _AUDCLNT_ERR(r))
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}
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return nil, fmt.Errorf("oto: IAudioClient2::GetService failed: HRESULT(%d)", uint32(r))
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}
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return v, nil
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}
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func (i *_IAudioClient2) Initialize(shareMode _AUDCLNT_SHAREMODE, streamFlags uint32, hnsBufferDuration _REFERENCE_TIME, hnsPeriodicity _REFERENCE_TIME, pFormat *_WAVEFORMATEXTENSIBLE, audioSessionGuid *windows.GUID) error {
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var r uintptr
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if unsafe.Sizeof(uintptr(0)) == 8 {
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// 64bits
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r, _, _ = syscall.Syscall9(i.vtbl.Initialize, 7, uintptr(unsafe.Pointer(i)),
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uintptr(shareMode), uintptr(streamFlags), uintptr(hnsBufferDuration),
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uintptr(hnsPeriodicity), uintptr(unsafe.Pointer(pFormat)), uintptr(unsafe.Pointer(audioSessionGuid)),
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0, 0)
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} else {
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// 32bits
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r, _, _ = syscall.Syscall9(i.vtbl.Initialize, 9, uintptr(unsafe.Pointer(i)),
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uintptr(shareMode), uintptr(streamFlags), uintptr(hnsBufferDuration),
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uintptr(hnsBufferDuration>>32), uintptr(hnsPeriodicity), uintptr(hnsPeriodicity>>32),
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uintptr(unsafe.Pointer(pFormat)), uintptr(unsafe.Pointer(audioSessionGuid)))
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}
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runtime.KeepAlive(pFormat)
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runtime.KeepAlive(audioSessionGuid)
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return fmt.Errorf("oto: IAudioClient2::Initialize failed: %w", _AUDCLNT_ERR(r))
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}
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return fmt.Errorf("oto: IAudioClient2::Initialize failed: HRESULT(%d)", uint32(r))
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}
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return nil
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}
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func (i *_IAudioClient2) IsFormatSupported(shareMode _AUDCLNT_SHAREMODE, pFormat *_WAVEFORMATEXTENSIBLE) (*_WAVEFORMATEXTENSIBLE, error) {
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var closestMatch *_WAVEFORMATEXTENSIBLE
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r, _, _ := syscall.Syscall6(i.vtbl.IsFormatSupported, 4, uintptr(unsafe.Pointer(i)),
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uintptr(shareMode), uintptr(unsafe.Pointer(pFormat)), uintptr(unsafe.Pointer(&closestMatch)),
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0, 0)
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if uint32(r) != uint32(windows.S_OK) {
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if uint32(r) == uint32(windows.S_FALSE) {
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var r _WAVEFORMATEXTENSIBLE
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if closestMatch != nil {
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r = *closestMatch
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windows.CoTaskMemFree(unsafe.Pointer(closestMatch))
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}
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return &r, nil
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}
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if isAudclntErr(uint32(r)) {
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return nil, fmt.Errorf("oto: IAudioClient2::IsFormatSupported failed: %w", _AUDCLNT_ERR(r))
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}
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return nil, fmt.Errorf("oto: IAudioClient2::IsFormatSupported failed: HRESULT(%d)", uint32(r))
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}
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return nil, nil
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}
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func (i *_IAudioClient2) Release() uint32 {
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r, _, _ := syscall.Syscall(i.vtbl.Release, 1, uintptr(unsafe.Pointer(i)), 0, 0)
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return uint32(r)
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}
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func (i *_IAudioClient2) SetClientProperties(pProperties *_AudioClientProperties) error {
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r, _, _ := syscall.Syscall(i.vtbl.SetClientProperties, 2, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(pProperties)), 0)
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runtime.KeepAlive(pProperties)
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if uint32(r) != uint32(windows.S_OK) {
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if isAudclntErr(uint32(r)) {
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return fmt.Errorf("oto: IAudioClient2::SetClientProperties failed: %w", _AUDCLNT_ERR(r))
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}
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return fmt.Errorf("oto: IAudioClient2::SetClientProperties failed: HRESULT(%d)", uint32(r))
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}
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return nil
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}
|
||
|
|
|
||
|
|
func (i *_IAudioClient2) SetEventHandle(eventHandle windows.Handle) error {
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.SetEventHandle, 2, uintptr(unsafe.Pointer(i)), uintptr(eventHandle), 0)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
if isAudclntErr(uint32(r)) {
|
||
|
|
return fmt.Errorf("oto: IAudioClient2::SetEventHandle failed: %w", _AUDCLNT_ERR(r))
|
||
|
|
}
|
||
|
|
return fmt.Errorf("oto: IAudioClient2::SetEventHandle failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IAudioClient2) Start() error {
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.Start, 1, uintptr(unsafe.Pointer(i)), 0, 0)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
if isAudclntErr(uint32(r)) {
|
||
|
|
return fmt.Errorf("oto: IAudioClient2::Start failed: %w", _AUDCLNT_ERR(r))
|
||
|
|
}
|
||
|
|
return fmt.Errorf("oto: IAudioClient2::Start failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IAudioClient2) Stop() (bool, error) {
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.Stop, 1, uintptr(unsafe.Pointer(i)), 0, 0)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) && uint32(r) != uint32(windows.S_FALSE) {
|
||
|
|
if isAudclntErr(uint32(r)) {
|
||
|
|
return false, fmt.Errorf("oto: IAudioClient2::Stop failed: %w", _AUDCLNT_ERR(r))
|
||
|
|
}
|
||
|
|
return false, fmt.Errorf("oto: IAudioClient2::Stop failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return uint32(r) == uint32(windows.S_OK), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IAudioRenderClient struct {
|
||
|
|
vtbl *_IAudioRenderClient_Vtbl
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IAudioRenderClient_Vtbl struct {
|
||
|
|
QueryInterface uintptr
|
||
|
|
AddRef uintptr
|
||
|
|
Release uintptr
|
||
|
|
|
||
|
|
GetBuffer uintptr
|
||
|
|
ReleaseBuffer uintptr
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IAudioRenderClient) GetBuffer(numFramesRequested uint32) (*byte, error) {
|
||
|
|
var data *byte
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.GetBuffer, 3, uintptr(unsafe.Pointer(i)), uintptr(numFramesRequested), uintptr(unsafe.Pointer(&data)))
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
if isAudclntErr(uint32(r)) {
|
||
|
|
return nil, fmt.Errorf("oto: IAudioRenderClient::GetBuffer failed: %w", _AUDCLNT_ERR(r))
|
||
|
|
}
|
||
|
|
return nil, fmt.Errorf("oto: IAudioRenderClient::GetBuffer failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return data, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IAudioRenderClient) Release() uint32 {
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.Release, 1, uintptr(unsafe.Pointer(i)), 0, 0)
|
||
|
|
return uint32(r)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IAudioRenderClient) ReleaseBuffer(numFramesWritten uint32, dwFlags uint32) error {
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.ReleaseBuffer, 3, uintptr(unsafe.Pointer(i)), uintptr(numFramesWritten), uintptr(dwFlags))
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
if isAudclntErr(uint32(r)) {
|
||
|
|
return fmt.Errorf("oto: IAudioRenderClient::ReleaseBuffer failed: %w", _AUDCLNT_ERR(r))
|
||
|
|
}
|
||
|
|
return fmt.Errorf("oto: IAudioRenderClient::ReleaseBuffer failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IMMDevice struct {
|
||
|
|
vtbl *_IMMDevice_Vtbl
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IMMDevice_Vtbl struct {
|
||
|
|
QueryInterface uintptr
|
||
|
|
AddRef uintptr
|
||
|
|
Release uintptr
|
||
|
|
|
||
|
|
Activate uintptr
|
||
|
|
OpenPropertyStore uintptr
|
||
|
|
GetId uintptr
|
||
|
|
GetState uintptr
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IMMDevice) Activate(iid *windows.GUID, dwClsCtx uint32, pActivationParams *_PROPVARIANT) (unsafe.Pointer, error) {
|
||
|
|
var v unsafe.Pointer
|
||
|
|
r, _, _ := syscall.Syscall6(i.vtbl.Activate, 5, uintptr(unsafe.Pointer(i)),
|
||
|
|
uintptr(unsafe.Pointer(iid)), uintptr(dwClsCtx), uintptr(unsafe.Pointer(pActivationParams)), uintptr(unsafe.Pointer(&v)), 0)
|
||
|
|
runtime.KeepAlive(iid)
|
||
|
|
runtime.KeepAlive(pActivationParams)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
return nil, fmt.Errorf("oto: IMMDevice::Activate failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return v, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IMMDevice) GetId() (string, error) {
|
||
|
|
var strId *uint16
|
||
|
|
r, _, _ := syscall.Syscall(i.vtbl.GetId, 2, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(&strId)), 0)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
return "", fmt.Errorf("oto: IMMDevice::GetId failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return windows.UTF16PtrToString(strId), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IMMDevice) Release() {
|
||
|
|
syscall.Syscall(i.vtbl.Release, 1, uintptr(unsafe.Pointer(i)), 0, 0)
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IMMDeviceEnumerator struct {
|
||
|
|
vtbl *_IMMDeviceEnumerator_Vtbl
|
||
|
|
}
|
||
|
|
|
||
|
|
type _IMMDeviceEnumerator_Vtbl struct {
|
||
|
|
QueryInterface uintptr
|
||
|
|
AddRef uintptr
|
||
|
|
Release uintptr
|
||
|
|
|
||
|
|
EnumAudioEndpoints uintptr
|
||
|
|
GetDefaultAudioEndpoint uintptr
|
||
|
|
GetDevice uintptr
|
||
|
|
RegisterEndpointNotificationCallback uintptr
|
||
|
|
UnregisterEndpointNotificationCallback uintptr
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IMMDeviceEnumerator) GetDefaultAudioEndPoint(dataFlow _EDataFlow, role _ERole) (*_IMMDevice, error) {
|
||
|
|
var endPoint *_IMMDevice
|
||
|
|
r, _, _ := syscall.Syscall6(i.vtbl.GetDefaultAudioEndpoint, 4, uintptr(unsafe.Pointer(i)),
|
||
|
|
uintptr(dataFlow), uintptr(role), uintptr(unsafe.Pointer(&endPoint)), 0, 0)
|
||
|
|
if uint32(r) != uint32(windows.S_OK) {
|
||
|
|
if isWin32Err(uint32(r)) {
|
||
|
|
return nil, fmt.Errorf("oto: IMMDeviceEnumerator::GetDefaultAudioEndPoint failed: %w", _E_NOTFOUND)
|
||
|
|
}
|
||
|
|
return nil, fmt.Errorf("oto: IMMDeviceEnumerator::GetDefaultAudioEndPoint failed: HRESULT(%d)", uint32(r))
|
||
|
|
}
|
||
|
|
return endPoint, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *_IMMDeviceEnumerator) Release() {
|
||
|
|
syscall.Syscall(i.vtbl.Release, 1, uintptr(unsafe.Pointer(i)), 0, 0)
|
||
|
|
}
|