63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
//go:build windows
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// +build windows
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package wca
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import (
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"syscall"
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"unsafe"
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"github.com/go-ole/go-ole"
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)
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func amiGetPeakValue(ami *IAudioMeterInformation, peak *float32) (err error) {
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hr, _, _ := syscall.Syscall(
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ami.VTable().GetPeakValue,
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2,
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uintptr(unsafe.Pointer(ami)),
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uintptr(unsafe.Pointer(peak)),
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0)
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if hr != 0 {
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err = ole.NewError(hr)
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}
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return
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}
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func amiGetChannelsPeakValues(ami *IAudioMeterInformation, count uint32, peaks []float32) (err error) {
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hr, _, _ := syscall.Syscall(ami.VTable().GetChannelsPeakValues,
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3,
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uintptr(unsafe.Pointer(ami)),
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uintptr(count),
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uintptr(unsafe.Pointer(&peaks[0])))
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if hr != 0 {
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err = ole.NewError(hr)
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}
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return
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}
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func amiGetMeteringChannelCount(ami *IAudioMeterInformation, count *uint32) (err error) {
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hr, _, _ := syscall.Syscall(
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ami.VTable().GetMeteringChannelCount,
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2,
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uintptr(unsafe.Pointer(ami)),
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uintptr(unsafe.Pointer(count)),
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0)
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if hr != 0 {
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err = ole.NewError(hr)
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}
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return
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}
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func amiQueryHardwareSupport(ami *IAudioMeterInformation, response *uint32) (err error) {
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hr, _, _ := syscall.Syscall(
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ami.VTable().GetMeteringChannelCount,
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2,
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uintptr(unsafe.Pointer(ami)),
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uintptr(unsafe.Pointer(response)),
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0)
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if hr != 0 {
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err = ole.NewError(hr)
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}
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return
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}
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