🛠️🐜 Antkeeper superbuild with dependencies included
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1814 lines
56 KiB
1814 lines
56 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 2011 by authors.
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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.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "config.h"
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#include "wasapi.h"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <memory.h>
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#include <wtypes.h>
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#include <mmdeviceapi.h>
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#include <audioclient.h>
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#include <cguid.h>
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#include <devpropdef.h>
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#include <mmreg.h>
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#include <propsys.h>
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#include <propkey.h>
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#include <devpkey.h>
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#ifndef _WAVEFORMATEXTENSIBLE_
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#include <ks.h>
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#include <ksmedia.h>
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#endif
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#include <algorithm>
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#include <atomic>
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#include <chrono>
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#include <condition_variable>
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#include <cstring>
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#include <deque>
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#include <functional>
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#include <future>
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#include <mutex>
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#include <string>
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#include <thread>
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#include <vector>
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#include "albit.h"
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#include "alnumeric.h"
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#include "comptr.h"
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#include "core/converter.h"
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#include "core/device.h"
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#include "core/helpers.h"
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#include "core/logging.h"
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#include "ringbuffer.h"
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#include "strutils.h"
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#include "threads.h"
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/* Some headers seem to define these as macros for __uuidof, which is annoying
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* since some headers don't declare them at all. Hopefully the ifdef is enough
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* to tell if they need to be declared.
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*/
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#ifndef KSDATAFORMAT_SUBTYPE_PCM
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DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
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#endif
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#ifndef KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
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DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
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#endif
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DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14);
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DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_FormFactor, 0x1da5d803, 0xd492, 0x4edd, 0x8c,0x23, 0xe0,0xc0,0xff,0xee,0x7f,0x0e, 0);
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DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23,0xe0, 0xc0,0xff,0xee,0x7f,0x0e, 4 );
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namespace {
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using std::chrono::milliseconds;
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using std::chrono::seconds;
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using ReferenceTime = std::chrono::duration<REFERENCE_TIME,std::ratio<1,10000000>>;
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inline constexpr ReferenceTime operator "" _reftime(unsigned long long int n) noexcept
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{ return ReferenceTime{static_cast<REFERENCE_TIME>(n)}; }
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#define MONO SPEAKER_FRONT_CENTER
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#define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT)
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#define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
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#define X5DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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#define X5DOT1REAR (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
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#define X6DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_CENTER|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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#define X7DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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constexpr inline DWORD MaskFromTopBits(DWORD b) noexcept
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{
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b |= b>>1;
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b |= b>>2;
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b |= b>>4;
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b |= b>>8;
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b |= b>>16;
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return b;
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}
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constexpr DWORD MonoMask{MaskFromTopBits(MONO)};
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constexpr DWORD StereoMask{MaskFromTopBits(STEREO)};
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constexpr DWORD QuadMask{MaskFromTopBits(QUAD)};
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constexpr DWORD X51Mask{MaskFromTopBits(X5DOT1)};
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constexpr DWORD X51RearMask{MaskFromTopBits(X5DOT1REAR)};
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constexpr DWORD X61Mask{MaskFromTopBits(X6DOT1)};
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constexpr DWORD X71Mask{MaskFromTopBits(X7DOT1)};
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constexpr char DevNameHead[] = "OpenAL Soft on ";
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constexpr size_t DevNameHeadLen{al::size(DevNameHead) - 1};
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/* Scales the given reftime value, rounding the result. */
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inline uint RefTime2Samples(const ReferenceTime &val, uint srate)
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{
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const auto retval = (val*srate + ReferenceTime{seconds{1}}/2) / seconds{1};
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return static_cast<uint>(mini64(retval, std::numeric_limits<uint>::max()));
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}
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class GuidPrinter {
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char mMsg[64];
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public:
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GuidPrinter(const GUID &guid)
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{
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std::snprintf(mMsg, al::size(mMsg), "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
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DWORD{guid.Data1}, guid.Data2, guid.Data3, guid.Data4[0], guid.Data4[1], guid.Data4[2],
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guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
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}
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const char *c_str() const { return mMsg; }
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};
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struct PropVariant {
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PROPVARIANT mProp;
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public:
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PropVariant() { PropVariantInit(&mProp); }
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~PropVariant() { clear(); }
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void clear() { PropVariantClear(&mProp); }
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PROPVARIANT* get() noexcept { return &mProp; }
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PROPVARIANT& operator*() noexcept { return mProp; }
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const PROPVARIANT& operator*() const noexcept { return mProp; }
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PROPVARIANT* operator->() noexcept { return &mProp; }
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const PROPVARIANT* operator->() const noexcept { return &mProp; }
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};
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struct DevMap {
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std::string name;
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std::string endpoint_guid; // obtained from PKEY_AudioEndpoint_GUID , set to "Unknown device GUID" if absent.
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std::wstring devid;
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template<typename T0, typename T1, typename T2>
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DevMap(T0&& name_, T1&& guid_, T2&& devid_)
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: name{std::forward<T0>(name_)}
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, endpoint_guid{std::forward<T1>(guid_)}
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, devid{std::forward<T2>(devid_)}
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{ }
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};
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bool checkName(const al::vector<DevMap> &list, const std::string &name)
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{
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auto match_name = [&name](const DevMap &entry) -> bool
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{ return entry.name == name; };
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return std::find_if(list.cbegin(), list.cend(), match_name) != list.cend();
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}
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al::vector<DevMap> PlaybackDevices;
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al::vector<DevMap> CaptureDevices;
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using NameGUIDPair = std::pair<std::string,std::string>;
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NameGUIDPair get_device_name_and_guid(IMMDevice *device)
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{
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static constexpr char UnknownName[]{"Unknown Device Name"};
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static constexpr char UnknownGuid[]{"Unknown Device GUID"};
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std::string name, guid;
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ComPtr<IPropertyStore> ps;
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HRESULT hr = device->OpenPropertyStore(STGM_READ, ps.getPtr());
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if(FAILED(hr))
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{
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WARN("OpenPropertyStore failed: 0x%08lx\n", hr);
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return std::make_pair(UnknownName, UnknownGuid);
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}
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PropVariant pvprop;
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hr = ps->GetValue(reinterpret_cast<const PROPERTYKEY&>(DEVPKEY_Device_FriendlyName), pvprop.get());
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if(FAILED(hr))
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{
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WARN("GetValue Device_FriendlyName failed: 0x%08lx\n", hr);
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name += UnknownName;
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}
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else if(pvprop->vt == VT_LPWSTR)
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name += wstr_to_utf8(pvprop->pwszVal);
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else
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{
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WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvprop->vt);
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name += UnknownName;
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}
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pvprop.clear();
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hr = ps->GetValue(reinterpret_cast<const PROPERTYKEY&>(PKEY_AudioEndpoint_GUID), pvprop.get());
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if(FAILED(hr))
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{
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WARN("GetValue AudioEndpoint_GUID failed: 0x%08lx\n", hr);
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guid = UnknownGuid;
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}
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else if(pvprop->vt == VT_LPWSTR)
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guid = wstr_to_utf8(pvprop->pwszVal);
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else
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{
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WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvprop->vt);
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guid = UnknownGuid;
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}
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return std::make_pair(std::move(name), std::move(guid));
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}
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EndpointFormFactor get_device_formfactor(IMMDevice *device)
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{
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ComPtr<IPropertyStore> ps;
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HRESULT hr{device->OpenPropertyStore(STGM_READ, ps.getPtr())};
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if(FAILED(hr))
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{
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WARN("OpenPropertyStore failed: 0x%08lx\n", hr);
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return UnknownFormFactor;
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}
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EndpointFormFactor formfactor{UnknownFormFactor};
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PropVariant pvform;
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hr = ps->GetValue(PKEY_AudioEndpoint_FormFactor, pvform.get());
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if(FAILED(hr))
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WARN("GetValue AudioEndpoint_FormFactor failed: 0x%08lx\n", hr);
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else if(pvform->vt == VT_UI4)
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formfactor = static_cast<EndpointFormFactor>(pvform->ulVal);
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else if(pvform->vt != VT_EMPTY)
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WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvform->vt);
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return formfactor;
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}
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void add_device(IMMDevice *device, const WCHAR *devid, al::vector<DevMap> &list)
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{
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for(auto &entry : list)
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{
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if(entry.devid == devid)
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return;
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}
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auto name_guid = get_device_name_and_guid(device);
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int count{1};
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std::string newname{name_guid.first};
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while(checkName(list, newname))
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{
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newname = name_guid.first;
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newname += " #";
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newname += std::to_string(++count);
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}
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list.emplace_back(std::move(newname), std::move(name_guid.second), devid);
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const DevMap &newentry = list.back();
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TRACE("Got device \"%s\", \"%s\", \"%ls\"\n", newentry.name.c_str(),
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newentry.endpoint_guid.c_str(), newentry.devid.c_str());
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}
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WCHAR *get_device_id(IMMDevice *device)
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{
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WCHAR *devid;
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const HRESULT hr{device->GetId(&devid)};
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if(FAILED(hr))
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{
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ERR("Failed to get device id: %lx\n", hr);
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return nullptr;
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}
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return devid;
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}
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void probe_devices(IMMDeviceEnumerator *devenum, EDataFlow flowdir, al::vector<DevMap> &list)
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{
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al::vector<DevMap>{}.swap(list);
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ComPtr<IMMDeviceCollection> coll;
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HRESULT hr{devenum->EnumAudioEndpoints(flowdir, DEVICE_STATE_ACTIVE, coll.getPtr())};
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if(FAILED(hr))
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{
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ERR("Failed to enumerate audio endpoints: 0x%08lx\n", hr);
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return;
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}
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UINT count{0};
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hr = coll->GetCount(&count);
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if(SUCCEEDED(hr) && count > 0)
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list.reserve(count);
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ComPtr<IMMDevice> device;
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hr = devenum->GetDefaultAudioEndpoint(flowdir, eMultimedia, device.getPtr());
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if(SUCCEEDED(hr))
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{
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if(WCHAR *devid{get_device_id(device.get())})
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{
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add_device(device.get(), devid, list);
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CoTaskMemFree(devid);
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}
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device = nullptr;
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}
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for(UINT i{0};i < count;++i)
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{
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hr = coll->Item(i, device.getPtr());
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if(FAILED(hr)) continue;
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if(WCHAR *devid{get_device_id(device.get())})
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{
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add_device(device.get(), devid, list);
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CoTaskMemFree(devid);
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}
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device = nullptr;
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}
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}
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bool MakeExtensible(WAVEFORMATEXTENSIBLE *out, const WAVEFORMATEX *in)
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{
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*out = WAVEFORMATEXTENSIBLE{};
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if(in->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
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{
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*out = *CONTAINING_RECORD(in, const WAVEFORMATEXTENSIBLE, Format);
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out->Format.cbSize = sizeof(*out) - sizeof(out->Format);
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}
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else if(in->wFormatTag == WAVE_FORMAT_PCM)
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{
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out->Format = *in;
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out->Format.cbSize = 0;
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out->Samples.wValidBitsPerSample = out->Format.wBitsPerSample;
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if(out->Format.nChannels == 1)
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out->dwChannelMask = MONO;
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else if(out->Format.nChannels == 2)
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out->dwChannelMask = STEREO;
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else
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ERR("Unhandled PCM channel count: %d\n", out->Format.nChannels);
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out->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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}
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else if(in->wFormatTag == WAVE_FORMAT_IEEE_FLOAT)
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{
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out->Format = *in;
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out->Format.cbSize = 0;
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out->Samples.wValidBitsPerSample = out->Format.wBitsPerSample;
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if(out->Format.nChannels == 1)
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out->dwChannelMask = MONO;
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else if(out->Format.nChannels == 2)
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out->dwChannelMask = STEREO;
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else
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ERR("Unhandled IEEE float channel count: %d\n", out->Format.nChannels);
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out->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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}
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else
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{
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ERR("Unhandled format tag: 0x%04x\n", in->wFormatTag);
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return false;
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}
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return true;
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}
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void TraceFormat(const char *msg, const WAVEFORMATEX *format)
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{
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constexpr size_t fmtex_extra_size{sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX)};
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if(format->wFormatTag == WAVE_FORMAT_EXTENSIBLE && format->cbSize >= fmtex_extra_size)
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{
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const WAVEFORMATEXTENSIBLE *fmtex{
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CONTAINING_RECORD(format, const WAVEFORMATEXTENSIBLE, Format)};
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TRACE("%s:\n"
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" FormatTag = 0x%04x\n"
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" Channels = %d\n"
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" SamplesPerSec = %lu\n"
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" AvgBytesPerSec = %lu\n"
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" BlockAlign = %d\n"
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" BitsPerSample = %d\n"
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" Size = %d\n"
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" Samples = %d\n"
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" ChannelMask = 0x%lx\n"
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" SubFormat = %s\n",
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msg, fmtex->Format.wFormatTag, fmtex->Format.nChannels, fmtex->Format.nSamplesPerSec,
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fmtex->Format.nAvgBytesPerSec, fmtex->Format.nBlockAlign, fmtex->Format.wBitsPerSample,
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fmtex->Format.cbSize, fmtex->Samples.wReserved, fmtex->dwChannelMask,
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GuidPrinter{fmtex->SubFormat}.c_str());
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}
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else
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TRACE("%s:\n"
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" FormatTag = 0x%04x\n"
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" Channels = %d\n"
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" SamplesPerSec = %lu\n"
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" AvgBytesPerSec = %lu\n"
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" BlockAlign = %d\n"
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" BitsPerSample = %d\n"
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" Size = %d\n",
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msg, format->wFormatTag, format->nChannels, format->nSamplesPerSec,
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format->nAvgBytesPerSec, format->nBlockAlign, format->wBitsPerSample, format->cbSize);
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}
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enum class MsgType {
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OpenDevice,
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ReopenDevice,
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ResetDevice,
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StartDevice,
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StopDevice,
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CloseDevice,
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EnumeratePlayback,
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EnumerateCapture,
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Count,
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QuitThread = Count
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};
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constexpr char MessageStr[static_cast<size_t>(MsgType::Count)][20]{
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"Open Device",
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"Reopen Device",
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"Reset Device",
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"Start Device",
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"Stop Device",
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"Close Device",
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"Enumerate Playback",
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"Enumerate Capture"
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};
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/* Proxy interface used by the message handler. */
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struct WasapiProxy {
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virtual ~WasapiProxy() = default;
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|
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virtual HRESULT openProxy(const char *name) = 0;
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virtual void closeProxy() = 0;
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virtual HRESULT resetProxy() = 0;
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virtual HRESULT startProxy() = 0;
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virtual void stopProxy() = 0;
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struct Msg {
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MsgType mType;
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WasapiProxy *mProxy;
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const char *mParam;
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std::promise<HRESULT> mPromise;
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explicit operator bool() const noexcept { return mType != MsgType::QuitThread; }
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};
|
|
static std::deque<Msg> mMsgQueue;
|
|
static std::mutex mMsgQueueLock;
|
|
static std::condition_variable mMsgQueueCond;
|
|
|
|
std::future<HRESULT> pushMessage(MsgType type, const char *param=nullptr)
|
|
{
|
|
std::promise<HRESULT> promise;
|
|
std::future<HRESULT> future{promise.get_future()};
|
|
{
|
|
std::lock_guard<std::mutex> _{mMsgQueueLock};
|
|
mMsgQueue.emplace_back(Msg{type, this, param, std::move(promise)});
|
|
}
|
|
mMsgQueueCond.notify_one();
|
|
return future;
|
|
}
|
|
|
|
static std::future<HRESULT> pushMessageStatic(MsgType type)
|
|
{
|
|
std::promise<HRESULT> promise;
|
|
std::future<HRESULT> future{promise.get_future()};
|
|
{
|
|
std::lock_guard<std::mutex> _{mMsgQueueLock};
|
|
mMsgQueue.emplace_back(Msg{type, nullptr, nullptr, std::move(promise)});
|
|
}
|
|
mMsgQueueCond.notify_one();
|
|
return future;
|
|
}
|
|
|
|
static Msg popMessage()
|
|
{
|
|
std::unique_lock<std::mutex> lock{mMsgQueueLock};
|
|
mMsgQueueCond.wait(lock, []{return !mMsgQueue.empty();});
|
|
Msg msg{std::move(mMsgQueue.front())};
|
|
mMsgQueue.pop_front();
|
|
return msg;
|
|
}
|
|
|
|
static int messageHandler(std::promise<HRESULT> *promise);
|
|
};
|
|
std::deque<WasapiProxy::Msg> WasapiProxy::mMsgQueue;
|
|
std::mutex WasapiProxy::mMsgQueueLock;
|
|
std::condition_variable WasapiProxy::mMsgQueueCond;
|
|
|
|
int WasapiProxy::messageHandler(std::promise<HRESULT> *promise)
|
|
{
|
|
TRACE("Starting message thread\n");
|
|
|
|
HRESULT cohr{CoInitializeEx(nullptr, COINIT_MULTITHREADED)};
|
|
if(FAILED(cohr))
|
|
{
|
|
WARN("Failed to initialize COM: 0x%08lx\n", cohr);
|
|
promise->set_value(cohr);
|
|
return 0;
|
|
}
|
|
|
|
void *ptr{};
|
|
HRESULT hr{CoCreateInstance(CLSID_MMDeviceEnumerator, nullptr, CLSCTX_INPROC_SERVER,
|
|
IID_IMMDeviceEnumerator, &ptr)};
|
|
if(FAILED(hr))
|
|
{
|
|
WARN("Failed to create IMMDeviceEnumerator instance: 0x%08lx\n", hr);
|
|
promise->set_value(hr);
|
|
CoUninitialize();
|
|
return 0;
|
|
}
|
|
static_cast<IMMDeviceEnumerator*>(ptr)->Release();
|
|
CoUninitialize();
|
|
|
|
TRACE("Message thread initialization complete\n");
|
|
promise->set_value(S_OK);
|
|
promise = nullptr;
|
|
|
|
TRACE("Starting message loop\n");
|
|
uint deviceCount{0};
|
|
while(Msg msg{popMessage()})
|
|
{
|
|
TRACE("Got message \"%s\" (0x%04x, this=%p, param=%p)\n",
|
|
MessageStr[static_cast<size_t>(msg.mType)], static_cast<uint>(msg.mType),
|
|
static_cast<void*>(msg.mProxy), static_cast<const void*>(msg.mParam));
|
|
|
|
switch(msg.mType)
|
|
{
|
|
case MsgType::OpenDevice:
|
|
hr = cohr = S_OK;
|
|
if(++deviceCount == 1)
|
|
hr = cohr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
|
|
if(SUCCEEDED(hr))
|
|
hr = msg.mProxy->openProxy(msg.mParam);
|
|
msg.mPromise.set_value(hr);
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
if(--deviceCount == 0 && SUCCEEDED(cohr))
|
|
CoUninitialize();
|
|
}
|
|
continue;
|
|
|
|
case MsgType::ReopenDevice:
|
|
hr = msg.mProxy->openProxy(msg.mParam);
|
|
msg.mPromise.set_value(hr);
|
|
continue;
|
|
|
|
case MsgType::ResetDevice:
|
|
hr = msg.mProxy->resetProxy();
|
|
msg.mPromise.set_value(hr);
|
|
continue;
|
|
|
|
case MsgType::StartDevice:
|
|
hr = msg.mProxy->startProxy();
|
|
msg.mPromise.set_value(hr);
|
|
continue;
|
|
|
|
case MsgType::StopDevice:
|
|
msg.mProxy->stopProxy();
|
|
msg.mPromise.set_value(S_OK);
|
|
continue;
|
|
|
|
case MsgType::CloseDevice:
|
|
msg.mProxy->closeProxy();
|
|
msg.mPromise.set_value(S_OK);
|
|
|
|
if(--deviceCount == 0)
|
|
CoUninitialize();
|
|
continue;
|
|
|
|
case MsgType::EnumeratePlayback:
|
|
case MsgType::EnumerateCapture:
|
|
hr = cohr = S_OK;
|
|
if(++deviceCount == 1)
|
|
hr = cohr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
|
|
if(SUCCEEDED(hr))
|
|
hr = CoCreateInstance(CLSID_MMDeviceEnumerator, nullptr, CLSCTX_INPROC_SERVER,
|
|
IID_IMMDeviceEnumerator, &ptr);
|
|
if(FAILED(hr))
|
|
msg.mPromise.set_value(hr);
|
|
else
|
|
{
|
|
ComPtr<IMMDeviceEnumerator> enumerator{static_cast<IMMDeviceEnumerator*>(ptr)};
|
|
|
|
if(msg.mType == MsgType::EnumeratePlayback)
|
|
probe_devices(enumerator.get(), eRender, PlaybackDevices);
|
|
else if(msg.mType == MsgType::EnumerateCapture)
|
|
probe_devices(enumerator.get(), eCapture, CaptureDevices);
|
|
msg.mPromise.set_value(S_OK);
|
|
}
|
|
|
|
if(--deviceCount == 0 && SUCCEEDED(cohr))
|
|
CoUninitialize();
|
|
continue;
|
|
|
|
case MsgType::QuitThread:
|
|
break;
|
|
}
|
|
ERR("Unexpected message: %u\n", static_cast<uint>(msg.mType));
|
|
msg.mPromise.set_value(E_FAIL);
|
|
}
|
|
TRACE("Message loop finished\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct WasapiPlayback final : public BackendBase, WasapiProxy {
|
|
WasapiPlayback(DeviceBase *device) noexcept : BackendBase{device} { }
|
|
~WasapiPlayback() override;
|
|
|
|
int mixerProc();
|
|
|
|
void open(const char *name) override;
|
|
HRESULT openProxy(const char *name) override;
|
|
void closeProxy() override;
|
|
|
|
bool reset() override;
|
|
HRESULT resetProxy() override;
|
|
void start() override;
|
|
HRESULT startProxy() override;
|
|
void stop() override;
|
|
void stopProxy() override;
|
|
|
|
ClockLatency getClockLatency() override;
|
|
|
|
HRESULT mOpenStatus{E_FAIL};
|
|
ComPtr<IMMDevice> mMMDev{nullptr};
|
|
ComPtr<IAudioClient> mClient{nullptr};
|
|
ComPtr<IAudioRenderClient> mRender{nullptr};
|
|
HANDLE mNotifyEvent{nullptr};
|
|
|
|
UINT32 mFrameStep{0u};
|
|
std::atomic<UINT32> mPadding{0u};
|
|
|
|
std::mutex mMutex;
|
|
|
|
std::atomic<bool> mKillNow{true};
|
|
std::thread mThread;
|
|
|
|
DEF_NEWDEL(WasapiPlayback)
|
|
};
|
|
|
|
WasapiPlayback::~WasapiPlayback()
|
|
{
|
|
if(SUCCEEDED(mOpenStatus))
|
|
pushMessage(MsgType::CloseDevice).wait();
|
|
mOpenStatus = E_FAIL;
|
|
|
|
if(mNotifyEvent != nullptr)
|
|
CloseHandle(mNotifyEvent);
|
|
mNotifyEvent = nullptr;
|
|
}
|
|
|
|
|
|
FORCE_ALIGN int WasapiPlayback::mixerProc()
|
|
{
|
|
HRESULT hr{CoInitializeEx(nullptr, COINIT_MULTITHREADED)};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("CoInitializeEx(nullptr, COINIT_MULTITHREADED) failed: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("COM init failed: 0x%08lx", hr);
|
|
return 1;
|
|
}
|
|
|
|
SetRTPriority();
|
|
althrd_setname(MIXER_THREAD_NAME);
|
|
|
|
const uint update_size{mDevice->UpdateSize};
|
|
const UINT32 buffer_len{mDevice->BufferSize};
|
|
while(!mKillNow.load(std::memory_order_relaxed))
|
|
{
|
|
UINT32 written;
|
|
hr = mClient->GetCurrentPadding(&written);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to get padding: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("Failed to retrieve buffer padding: 0x%08lx", hr);
|
|
break;
|
|
}
|
|
mPadding.store(written, std::memory_order_relaxed);
|
|
|
|
uint len{buffer_len - written};
|
|
if(len < update_size)
|
|
{
|
|
DWORD res{WaitForSingleObjectEx(mNotifyEvent, 2000, FALSE)};
|
|
if(res != WAIT_OBJECT_0)
|
|
ERR("WaitForSingleObjectEx error: 0x%lx\n", res);
|
|
continue;
|
|
}
|
|
|
|
BYTE *buffer;
|
|
hr = mRender->GetBuffer(len, &buffer);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
{
|
|
std::lock_guard<std::mutex> _{mMutex};
|
|
mDevice->renderSamples(buffer, len, mFrameStep);
|
|
mPadding.store(written + len, std::memory_order_relaxed);
|
|
}
|
|
hr = mRender->ReleaseBuffer(len, 0);
|
|
}
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to buffer data: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("Failed to send playback samples: 0x%08lx", hr);
|
|
break;
|
|
}
|
|
}
|
|
mPadding.store(0u, std::memory_order_release);
|
|
|
|
CoUninitialize();
|
|
return 0;
|
|
}
|
|
|
|
|
|
void WasapiPlayback::open(const char *name)
|
|
{
|
|
HRESULT hr{S_OK};
|
|
|
|
if(!mNotifyEvent)
|
|
{
|
|
mNotifyEvent = CreateEventW(nullptr, FALSE, FALSE, nullptr);
|
|
if(mNotifyEvent == nullptr)
|
|
{
|
|
ERR("Failed to create notify events: %lu\n", GetLastError());
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
if(name)
|
|
{
|
|
if(PlaybackDevices.empty())
|
|
pushMessage(MsgType::EnumeratePlayback);
|
|
if(std::strncmp(name, DevNameHead, DevNameHeadLen) == 0)
|
|
{
|
|
name += DevNameHeadLen;
|
|
if(*name == '\0')
|
|
name = nullptr;
|
|
}
|
|
}
|
|
|
|
if(SUCCEEDED(mOpenStatus))
|
|
hr = pushMessage(MsgType::ReopenDevice, name).get();
|
|
else
|
|
{
|
|
hr = pushMessage(MsgType::OpenDevice, name).get();
|
|
mOpenStatus = hr;
|
|
}
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Device init failed: 0x%08lx",
|
|
hr};
|
|
}
|
|
|
|
HRESULT WasapiPlayback::openProxy(const char *name)
|
|
{
|
|
const wchar_t *devid{nullptr};
|
|
if(name)
|
|
{
|
|
auto iter = std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(),
|
|
[name](const DevMap &entry) -> bool
|
|
{ return entry.name == name || entry.endpoint_guid == name; });
|
|
if(iter == PlaybackDevices.cend())
|
|
{
|
|
const std::wstring wname{utf8_to_wstr(name)};
|
|
iter = std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(),
|
|
[&wname](const DevMap &entry) -> bool
|
|
{ return entry.devid == wname; });
|
|
}
|
|
if(iter == PlaybackDevices.cend())
|
|
{
|
|
WARN("Failed to find device name matching \"%s\"\n", name);
|
|
return E_FAIL;
|
|
}
|
|
name = iter->name.c_str();
|
|
devid = iter->devid.c_str();
|
|
}
|
|
|
|
void *ptr;
|
|
ComPtr<IMMDevice> mmdev;
|
|
HRESULT hr{CoCreateInstance(CLSID_MMDeviceEnumerator, nullptr, CLSCTX_INPROC_SERVER,
|
|
IID_IMMDeviceEnumerator, &ptr)};
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
ComPtr<IMMDeviceEnumerator> enumerator{static_cast<IMMDeviceEnumerator*>(ptr)};
|
|
if(!devid)
|
|
hr = enumerator->GetDefaultAudioEndpoint(eRender, eMultimedia, mmdev.getPtr());
|
|
else
|
|
hr = enumerator->GetDevice(devid, mmdev.getPtr());
|
|
}
|
|
if(FAILED(hr))
|
|
{
|
|
WARN("Failed to open device \"%s\"\n", name?name:"(default)");
|
|
return hr;
|
|
}
|
|
|
|
mClient = nullptr;
|
|
mMMDev = std::move(mmdev);
|
|
if(name) mDevice->DeviceName = std::string{DevNameHead} + name;
|
|
else mDevice->DeviceName = DevNameHead + get_device_name_and_guid(mMMDev.get()).first;
|
|
|
|
return hr;
|
|
}
|
|
|
|
void WasapiPlayback::closeProxy()
|
|
{
|
|
mClient = nullptr;
|
|
mMMDev = nullptr;
|
|
}
|
|
|
|
|
|
bool WasapiPlayback::reset()
|
|
{
|
|
HRESULT hr{pushMessage(MsgType::ResetDevice).get()};
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError, "0x%08lx", hr};
|
|
return true;
|
|
}
|
|
|
|
HRESULT WasapiPlayback::resetProxy()
|
|
{
|
|
mClient = nullptr;
|
|
|
|
void *ptr;
|
|
HRESULT hr{mMMDev->Activate(IID_IAudioClient, CLSCTX_INPROC_SERVER, nullptr, &ptr)};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to reactivate audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
mClient = ComPtr<IAudioClient>{static_cast<IAudioClient*>(ptr)};
|
|
|
|
WAVEFORMATEX *wfx;
|
|
hr = mClient->GetMixFormat(&wfx);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to get mix format: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
WAVEFORMATEXTENSIBLE OutputType;
|
|
if(!MakeExtensible(&OutputType, wfx))
|
|
{
|
|
CoTaskMemFree(wfx);
|
|
return E_FAIL;
|
|
}
|
|
CoTaskMemFree(wfx);
|
|
wfx = nullptr;
|
|
|
|
const ReferenceTime per_time{ReferenceTime{seconds{mDevice->UpdateSize}} / mDevice->Frequency};
|
|
const ReferenceTime buf_time{ReferenceTime{seconds{mDevice->BufferSize}} / mDevice->Frequency};
|
|
|
|
if(!mDevice->Flags.test(FrequencyRequest))
|
|
mDevice->Frequency = OutputType.Format.nSamplesPerSec;
|
|
if(!mDevice->Flags.test(ChannelsRequest))
|
|
{
|
|
const uint32_t chancount{OutputType.Format.nChannels};
|
|
const DWORD chanmask{OutputType.dwChannelMask};
|
|
if(chancount >= 8 && (chanmask&X71Mask) == X7DOT1)
|
|
mDevice->FmtChans = DevFmtX71;
|
|
else if(chancount >= 7 && (chanmask&X61Mask) == X6DOT1)
|
|
mDevice->FmtChans = DevFmtX61;
|
|
else if(chancount >= 6 && ((chanmask&X51Mask) == X5DOT1
|
|
|| (chanmask&X51RearMask) == X5DOT1REAR))
|
|
mDevice->FmtChans = DevFmtX51;
|
|
else if(chancount >= 4 && (chanmask&QuadMask) == QUAD)
|
|
mDevice->FmtChans = DevFmtQuad;
|
|
else if(chancount >= 2 && (chanmask&StereoMask) == STEREO)
|
|
mDevice->FmtChans = DevFmtStereo;
|
|
else if(chancount >= 1 && (chanmask&MonoMask) == MONO)
|
|
mDevice->FmtChans = DevFmtMono;
|
|
else
|
|
ERR("Unhandled channel config: %d -- 0x%08lx\n", chancount, chanmask);
|
|
}
|
|
|
|
OutputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono:
|
|
OutputType.Format.nChannels = 1;
|
|
OutputType.dwChannelMask = MONO;
|
|
break;
|
|
case DevFmtAmbi3D:
|
|
mDevice->FmtChans = DevFmtStereo;
|
|
/*fall-through*/
|
|
case DevFmtStereo:
|
|
OutputType.Format.nChannels = 2;
|
|
OutputType.dwChannelMask = STEREO;
|
|
break;
|
|
case DevFmtQuad:
|
|
OutputType.Format.nChannels = 4;
|
|
OutputType.dwChannelMask = QUAD;
|
|
break;
|
|
case DevFmtX51:
|
|
OutputType.Format.nChannels = 6;
|
|
OutputType.dwChannelMask = X5DOT1;
|
|
break;
|
|
case DevFmtX61:
|
|
OutputType.Format.nChannels = 7;
|
|
OutputType.dwChannelMask = X6DOT1;
|
|
break;
|
|
case DevFmtX71:
|
|
OutputType.Format.nChannels = 8;
|
|
OutputType.dwChannelMask = X7DOT1;
|
|
break;
|
|
}
|
|
switch(mDevice->FmtType)
|
|
{
|
|
case DevFmtByte:
|
|
mDevice->FmtType = DevFmtUByte;
|
|
/* fall-through */
|
|
case DevFmtUByte:
|
|
OutputType.Format.wBitsPerSample = 8;
|
|
OutputType.Samples.wValidBitsPerSample = 8;
|
|
OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtUShort:
|
|
mDevice->FmtType = DevFmtShort;
|
|
/* fall-through */
|
|
case DevFmtShort:
|
|
OutputType.Format.wBitsPerSample = 16;
|
|
OutputType.Samples.wValidBitsPerSample = 16;
|
|
OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtUInt:
|
|
mDevice->FmtType = DevFmtInt;
|
|
/* fall-through */
|
|
case DevFmtInt:
|
|
OutputType.Format.wBitsPerSample = 32;
|
|
OutputType.Samples.wValidBitsPerSample = 32;
|
|
OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtFloat:
|
|
OutputType.Format.wBitsPerSample = 32;
|
|
OutputType.Samples.wValidBitsPerSample = 32;
|
|
OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
|
|
break;
|
|
}
|
|
OutputType.Format.nSamplesPerSec = mDevice->Frequency;
|
|
|
|
OutputType.Format.nBlockAlign = static_cast<WORD>(OutputType.Format.nChannels *
|
|
OutputType.Format.wBitsPerSample / 8);
|
|
OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
|
|
OutputType.Format.nBlockAlign;
|
|
|
|
TraceFormat("Requesting playback format", &OutputType.Format);
|
|
hr = mClient->IsFormatSupported(AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to check format support: 0x%08lx\n", hr);
|
|
hr = mClient->GetMixFormat(&wfx);
|
|
}
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to find a supported format: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
if(wfx != nullptr)
|
|
{
|
|
TraceFormat("Got playback format", wfx);
|
|
if(!MakeExtensible(&OutputType, wfx))
|
|
{
|
|
CoTaskMemFree(wfx);
|
|
return E_FAIL;
|
|
}
|
|
CoTaskMemFree(wfx);
|
|
wfx = nullptr;
|
|
|
|
mDevice->Frequency = OutputType.Format.nSamplesPerSec;
|
|
const uint32_t chancount{OutputType.Format.nChannels};
|
|
const DWORD chanmask{OutputType.dwChannelMask};
|
|
/* Don't update the channel format if the requested format fits what's
|
|
* supported.
|
|
*/
|
|
bool chansok{false};
|
|
if(mDevice->Flags.test(ChannelsRequest))
|
|
{
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono:
|
|
chansok = (chancount >= 1 && (chanmask&MonoMask) == MONO);
|
|
break;
|
|
case DevFmtStereo:
|
|
chansok = (chancount >= 2 && (chanmask&StereoMask) == STEREO);
|
|
break;
|
|
case DevFmtQuad:
|
|
chansok = (chancount >= 4 && (chanmask&QuadMask) == QUAD);
|
|
break;
|
|
case DevFmtX51:
|
|
chansok = (chancount >= 6 && ((chanmask&X51Mask) == X5DOT1
|
|
|| (chanmask&X51RearMask) == X5DOT1REAR));
|
|
break;
|
|
case DevFmtX61:
|
|
chansok = (chancount >= 7 && (chanmask&X61Mask) == X6DOT1);
|
|
break;
|
|
case DevFmtX71:
|
|
chansok = (chancount >= 8 && (chanmask&X71Mask) == X7DOT1);
|
|
break;
|
|
case DevFmtAmbi3D:
|
|
break;
|
|
}
|
|
}
|
|
if(!chansok)
|
|
{
|
|
if(chancount >= 8 && (chanmask&X71Mask) == X7DOT1)
|
|
mDevice->FmtChans = DevFmtX71;
|
|
else if(chancount >= 7 && (chanmask&X61Mask) == X6DOT1)
|
|
mDevice->FmtChans = DevFmtX61;
|
|
else if(chancount >= 6 && ((chanmask&X51Mask) == X5DOT1
|
|
|| (chanmask&X51RearMask) == X5DOT1REAR))
|
|
mDevice->FmtChans = DevFmtX51;
|
|
else if(chancount >= 4 && (chanmask&QuadMask) == QUAD)
|
|
mDevice->FmtChans = DevFmtQuad;
|
|
else if(chancount >= 2 && (chanmask&StereoMask) == STEREO)
|
|
mDevice->FmtChans = DevFmtStereo;
|
|
else if(chancount >= 1 && (chanmask&MonoMask) == MONO)
|
|
mDevice->FmtChans = DevFmtMono;
|
|
else
|
|
{
|
|
ERR("Unhandled extensible channels: %d -- 0x%08lx\n", OutputType.Format.nChannels,
|
|
OutputType.dwChannelMask);
|
|
mDevice->FmtChans = DevFmtStereo;
|
|
OutputType.Format.nChannels = 2;
|
|
OutputType.dwChannelMask = STEREO;
|
|
}
|
|
}
|
|
|
|
if(IsEqualGUID(OutputType.SubFormat, KSDATAFORMAT_SUBTYPE_PCM))
|
|
{
|
|
if(OutputType.Format.wBitsPerSample == 8)
|
|
mDevice->FmtType = DevFmtUByte;
|
|
else if(OutputType.Format.wBitsPerSample == 16)
|
|
mDevice->FmtType = DevFmtShort;
|
|
else if(OutputType.Format.wBitsPerSample == 32)
|
|
mDevice->FmtType = DevFmtInt;
|
|
else
|
|
{
|
|
mDevice->FmtType = DevFmtShort;
|
|
OutputType.Format.wBitsPerSample = 16;
|
|
}
|
|
}
|
|
else if(IsEqualGUID(OutputType.SubFormat, KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
|
|
{
|
|
mDevice->FmtType = DevFmtFloat;
|
|
OutputType.Format.wBitsPerSample = 32;
|
|
}
|
|
else
|
|
{
|
|
ERR("Unhandled format sub-type: %s\n", GuidPrinter{OutputType.SubFormat}.c_str());
|
|
mDevice->FmtType = DevFmtShort;
|
|
if(OutputType.Format.wFormatTag != WAVE_FORMAT_EXTENSIBLE)
|
|
OutputType.Format.wFormatTag = WAVE_FORMAT_PCM;
|
|
OutputType.Format.wBitsPerSample = 16;
|
|
OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
}
|
|
OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
|
|
}
|
|
mFrameStep = OutputType.Format.nChannels;
|
|
|
|
const EndpointFormFactor formfactor{get_device_formfactor(mMMDev.get())};
|
|
mDevice->Flags.set(DirectEar, (formfactor == Headphones || formfactor == Headset));
|
|
|
|
setChannelOrderFromWFXMask(OutputType.dwChannelMask);
|
|
|
|
hr = mClient->Initialize(AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
|
|
buf_time.count(), 0, &OutputType.Format, nullptr);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to initialize audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
UINT32 buffer_len{};
|
|
ReferenceTime min_per{};
|
|
hr = mClient->GetDevicePeriod(&reinterpret_cast<REFERENCE_TIME&>(min_per), nullptr);
|
|
if(SUCCEEDED(hr))
|
|
hr = mClient->GetBufferSize(&buffer_len);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to get audio buffer info: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
/* Find the nearest multiple of the period size to the update size */
|
|
if(min_per < per_time)
|
|
min_per *= maxi64((per_time + min_per/2) / min_per, 1);
|
|
mDevice->UpdateSize = minu(RefTime2Samples(min_per, mDevice->Frequency), buffer_len/2);
|
|
mDevice->BufferSize = buffer_len;
|
|
|
|
hr = mClient->SetEventHandle(mNotifyEvent);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to set event handle: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
void WasapiPlayback::start()
|
|
{
|
|
const HRESULT hr{pushMessage(MsgType::StartDevice).get()};
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"Failed to start playback: 0x%lx", hr};
|
|
}
|
|
|
|
HRESULT WasapiPlayback::startProxy()
|
|
{
|
|
ResetEvent(mNotifyEvent);
|
|
|
|
HRESULT hr{mClient->Start()};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to start audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
void *ptr;
|
|
hr = mClient->GetService(IID_IAudioRenderClient, &ptr);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
mRender = ComPtr<IAudioRenderClient>{static_cast<IAudioRenderClient*>(ptr)};
|
|
try {
|
|
mKillNow.store(false, std::memory_order_release);
|
|
mThread = std::thread{std::mem_fn(&WasapiPlayback::mixerProc), this};
|
|
}
|
|
catch(...) {
|
|
mRender = nullptr;
|
|
ERR("Failed to start thread\n");
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
mClient->Stop();
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
void WasapiPlayback::stop()
|
|
{ pushMessage(MsgType::StopDevice).wait(); }
|
|
|
|
void WasapiPlayback::stopProxy()
|
|
{
|
|
if(!mRender || !mThread.joinable())
|
|
return;
|
|
|
|
mKillNow.store(true, std::memory_order_release);
|
|
mThread.join();
|
|
|
|
mRender = nullptr;
|
|
mClient->Stop();
|
|
}
|
|
|
|
|
|
ClockLatency WasapiPlayback::getClockLatency()
|
|
{
|
|
ClockLatency ret;
|
|
|
|
std::lock_guard<std::mutex> _{mMutex};
|
|
ret.ClockTime = GetDeviceClockTime(mDevice);
|
|
ret.Latency = std::chrono::seconds{mPadding.load(std::memory_order_relaxed)};
|
|
ret.Latency /= mDevice->Frequency;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
struct WasapiCapture final : public BackendBase, WasapiProxy {
|
|
WasapiCapture(DeviceBase *device) noexcept : BackendBase{device} { }
|
|
~WasapiCapture() override;
|
|
|
|
int recordProc();
|
|
|
|
void open(const char *name) override;
|
|
HRESULT openProxy(const char *name) override;
|
|
void closeProxy() override;
|
|
|
|
HRESULT resetProxy() override;
|
|
void start() override;
|
|
HRESULT startProxy() override;
|
|
void stop() override;
|
|
void stopProxy() override;
|
|
|
|
void captureSamples(al::byte *buffer, uint samples) override;
|
|
uint availableSamples() override;
|
|
|
|
HRESULT mOpenStatus{E_FAIL};
|
|
ComPtr<IMMDevice> mMMDev{nullptr};
|
|
ComPtr<IAudioClient> mClient{nullptr};
|
|
ComPtr<IAudioCaptureClient> mCapture{nullptr};
|
|
HANDLE mNotifyEvent{nullptr};
|
|
|
|
ChannelConverter mChannelConv{};
|
|
SampleConverterPtr mSampleConv;
|
|
RingBufferPtr mRing;
|
|
|
|
std::atomic<bool> mKillNow{true};
|
|
std::thread mThread;
|
|
|
|
DEF_NEWDEL(WasapiCapture)
|
|
};
|
|
|
|
WasapiCapture::~WasapiCapture()
|
|
{
|
|
if(SUCCEEDED(mOpenStatus))
|
|
pushMessage(MsgType::CloseDevice).wait();
|
|
mOpenStatus = E_FAIL;
|
|
|
|
if(mNotifyEvent != nullptr)
|
|
CloseHandle(mNotifyEvent);
|
|
mNotifyEvent = nullptr;
|
|
}
|
|
|
|
|
|
FORCE_ALIGN int WasapiCapture::recordProc()
|
|
{
|
|
HRESULT hr{CoInitializeEx(nullptr, COINIT_MULTITHREADED)};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("CoInitializeEx(nullptr, COINIT_MULTITHREADED) failed: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("COM init failed: 0x%08lx", hr);
|
|
return 1;
|
|
}
|
|
|
|
althrd_setname(RECORD_THREAD_NAME);
|
|
|
|
al::vector<float> samples;
|
|
while(!mKillNow.load(std::memory_order_relaxed))
|
|
{
|
|
UINT32 avail;
|
|
hr = mCapture->GetNextPacketSize(&avail);
|
|
if(FAILED(hr))
|
|
ERR("Failed to get next packet size: 0x%08lx\n", hr);
|
|
else if(avail > 0)
|
|
{
|
|
UINT32 numsamples;
|
|
DWORD flags;
|
|
BYTE *rdata;
|
|
|
|
hr = mCapture->GetBuffer(&rdata, &numsamples, &flags, nullptr, nullptr);
|
|
if(FAILED(hr))
|
|
ERR("Failed to get capture buffer: 0x%08lx\n", hr);
|
|
else
|
|
{
|
|
if(mChannelConv.is_active())
|
|
{
|
|
samples.resize(numsamples*2);
|
|
mChannelConv.convert(rdata, samples.data(), numsamples);
|
|
rdata = reinterpret_cast<BYTE*>(samples.data());
|
|
}
|
|
|
|
auto data = mRing->getWriteVector();
|
|
|
|
size_t dstframes;
|
|
if(mSampleConv)
|
|
{
|
|
const void *srcdata{rdata};
|
|
uint srcframes{numsamples};
|
|
|
|
dstframes = mSampleConv->convert(&srcdata, &srcframes, data.first.buf,
|
|
static_cast<uint>(minz(data.first.len, INT_MAX)));
|
|
if(srcframes > 0 && dstframes == data.first.len && data.second.len > 0)
|
|
{
|
|
/* If some source samples remain, all of the first dest
|
|
* block was filled, and there's space in the second
|
|
* dest block, do another run for the second block.
|
|
*/
|
|
dstframes += mSampleConv->convert(&srcdata, &srcframes, data.second.buf,
|
|
static_cast<uint>(minz(data.second.len, INT_MAX)));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const uint framesize{mDevice->frameSizeFromFmt()};
|
|
size_t len1{minz(data.first.len, numsamples)};
|
|
size_t len2{minz(data.second.len, numsamples-len1)};
|
|
|
|
memcpy(data.first.buf, rdata, len1*framesize);
|
|
if(len2 > 0)
|
|
memcpy(data.second.buf, rdata+len1*framesize, len2*framesize);
|
|
dstframes = len1 + len2;
|
|
}
|
|
|
|
mRing->writeAdvance(dstframes);
|
|
|
|
hr = mCapture->ReleaseBuffer(numsamples);
|
|
if(FAILED(hr)) ERR("Failed to release capture buffer: 0x%08lx\n", hr);
|
|
}
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
mDevice->handleDisconnect("Failed to capture samples: 0x%08lx", hr);
|
|
break;
|
|
}
|
|
|
|
DWORD res{WaitForSingleObjectEx(mNotifyEvent, 2000, FALSE)};
|
|
if(res != WAIT_OBJECT_0)
|
|
ERR("WaitForSingleObjectEx error: 0x%lx\n", res);
|
|
}
|
|
|
|
CoUninitialize();
|
|
return 0;
|
|
}
|
|
|
|
|
|
void WasapiCapture::open(const char *name)
|
|
{
|
|
HRESULT hr{S_OK};
|
|
|
|
mNotifyEvent = CreateEventW(nullptr, FALSE, FALSE, nullptr);
|
|
if(mNotifyEvent == nullptr)
|
|
{
|
|
ERR("Failed to create notify event: %lu\n", GetLastError());
|
|
hr = E_FAIL;
|
|
}
|
|
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
if(name)
|
|
{
|
|
if(CaptureDevices.empty())
|
|
pushMessage(MsgType::EnumerateCapture);
|
|
if(std::strncmp(name, DevNameHead, DevNameHeadLen) == 0)
|
|
{
|
|
name += DevNameHeadLen;
|
|
if(*name == '\0')
|
|
name = nullptr;
|
|
}
|
|
}
|
|
hr = pushMessage(MsgType::OpenDevice, name).get();
|
|
}
|
|
mOpenStatus = hr;
|
|
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Device init failed: 0x%08lx",
|
|
hr};
|
|
|
|
hr = pushMessage(MsgType::ResetDevice).get();
|
|
if(FAILED(hr))
|
|
{
|
|
if(hr == E_OUTOFMEMORY)
|
|
throw al::backend_exception{al::backend_error::OutOfMemory, "Out of memory"};
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Device reset failed"};
|
|
}
|
|
}
|
|
|
|
HRESULT WasapiCapture::openProxy(const char *name)
|
|
{
|
|
const wchar_t *devid{nullptr};
|
|
if(name)
|
|
{
|
|
auto iter = std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(),
|
|
[name](const DevMap &entry) -> bool
|
|
{ return entry.name == name || entry.endpoint_guid == name; });
|
|
if(iter == CaptureDevices.cend())
|
|
{
|
|
const std::wstring wname{utf8_to_wstr(name)};
|
|
iter = std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(),
|
|
[&wname](const DevMap &entry) -> bool
|
|
{ return entry.devid == wname; });
|
|
}
|
|
if(iter == CaptureDevices.cend())
|
|
{
|
|
WARN("Failed to find device name matching \"%s\"\n", name);
|
|
return E_FAIL;
|
|
}
|
|
name = iter->name.c_str();
|
|
devid = iter->devid.c_str();
|
|
}
|
|
|
|
void *ptr;
|
|
HRESULT hr{CoCreateInstance(CLSID_MMDeviceEnumerator, nullptr, CLSCTX_INPROC_SERVER,
|
|
IID_IMMDeviceEnumerator, &ptr)};
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
ComPtr<IMMDeviceEnumerator> enumerator{static_cast<IMMDeviceEnumerator*>(ptr)};
|
|
if(!devid)
|
|
hr = enumerator->GetDefaultAudioEndpoint(eCapture, eMultimedia, mMMDev.getPtr());
|
|
else
|
|
hr = enumerator->GetDevice(devid, mMMDev.getPtr());
|
|
}
|
|
if(FAILED(hr))
|
|
{
|
|
WARN("Failed to open device \"%s\"\n", name?name:"(default)");
|
|
return hr;
|
|
}
|
|
|
|
mClient = nullptr;
|
|
if(name) mDevice->DeviceName = std::string{DevNameHead} + name;
|
|
else mDevice->DeviceName = DevNameHead + get_device_name_and_guid(mMMDev.get()).first;
|
|
|
|
return hr;
|
|
}
|
|
|
|
void WasapiCapture::closeProxy()
|
|
{
|
|
mClient = nullptr;
|
|
mMMDev = nullptr;
|
|
}
|
|
|
|
HRESULT WasapiCapture::resetProxy()
|
|
{
|
|
mClient = nullptr;
|
|
|
|
void *ptr;
|
|
HRESULT hr{mMMDev->Activate(IID_IAudioClient, CLSCTX_INPROC_SERVER, nullptr, &ptr)};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to reactivate audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
mClient = ComPtr<IAudioClient>{static_cast<IAudioClient*>(ptr)};
|
|
|
|
// Make sure buffer is at least 100ms in size
|
|
ReferenceTime buf_time{ReferenceTime{seconds{mDevice->BufferSize}} / mDevice->Frequency};
|
|
buf_time = std::max(buf_time, ReferenceTime{milliseconds{100}});
|
|
|
|
WAVEFORMATEXTENSIBLE InputType{};
|
|
InputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono:
|
|
InputType.Format.nChannels = 1;
|
|
InputType.dwChannelMask = MONO;
|
|
break;
|
|
case DevFmtStereo:
|
|
InputType.Format.nChannels = 2;
|
|
InputType.dwChannelMask = STEREO;
|
|
break;
|
|
case DevFmtQuad:
|
|
InputType.Format.nChannels = 4;
|
|
InputType.dwChannelMask = QUAD;
|
|
break;
|
|
case DevFmtX51:
|
|
InputType.Format.nChannels = 6;
|
|
InputType.dwChannelMask = X5DOT1;
|
|
break;
|
|
case DevFmtX61:
|
|
InputType.Format.nChannels = 7;
|
|
InputType.dwChannelMask = X6DOT1;
|
|
break;
|
|
case DevFmtX71:
|
|
InputType.Format.nChannels = 8;
|
|
InputType.dwChannelMask = X7DOT1;
|
|
break;
|
|
|
|
case DevFmtAmbi3D:
|
|
return E_FAIL;
|
|
}
|
|
switch(mDevice->FmtType)
|
|
{
|
|
/* NOTE: Signedness doesn't matter, the converter will handle it. */
|
|
case DevFmtByte:
|
|
case DevFmtUByte:
|
|
InputType.Format.wBitsPerSample = 8;
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtShort:
|
|
case DevFmtUShort:
|
|
InputType.Format.wBitsPerSample = 16;
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtInt:
|
|
case DevFmtUInt:
|
|
InputType.Format.wBitsPerSample = 32;
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
break;
|
|
case DevFmtFloat:
|
|
InputType.Format.wBitsPerSample = 32;
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
|
|
break;
|
|
}
|
|
InputType.Samples.wValidBitsPerSample = InputType.Format.wBitsPerSample;
|
|
InputType.Format.nSamplesPerSec = mDevice->Frequency;
|
|
|
|
InputType.Format.nBlockAlign = static_cast<WORD>(InputType.Format.nChannels *
|
|
InputType.Format.wBitsPerSample / 8);
|
|
InputType.Format.nAvgBytesPerSec = InputType.Format.nSamplesPerSec *
|
|
InputType.Format.nBlockAlign;
|
|
InputType.Format.cbSize = sizeof(InputType) - sizeof(InputType.Format);
|
|
|
|
TraceFormat("Requesting capture format", &InputType.Format);
|
|
WAVEFORMATEX *wfx;
|
|
hr = mClient->IsFormatSupported(AUDCLNT_SHAREMODE_SHARED, &InputType.Format, &wfx);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to check format support: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
mSampleConv = nullptr;
|
|
mChannelConv = {};
|
|
|
|
if(wfx != nullptr)
|
|
{
|
|
TraceFormat("Got capture format", wfx);
|
|
if(!MakeExtensible(&InputType, wfx))
|
|
{
|
|
CoTaskMemFree(wfx);
|
|
return E_FAIL;
|
|
}
|
|
CoTaskMemFree(wfx);
|
|
wfx = nullptr;
|
|
|
|
auto validate_fmt = [](DeviceBase *device, uint32_t chancount, DWORD chanmask) noexcept
|
|
-> bool
|
|
{
|
|
switch(device->FmtChans)
|
|
{
|
|
/* If the device wants mono, we can handle any input. */
|
|
case DevFmtMono:
|
|
return true;
|
|
/* If the device wants stereo, we can handle mono or stereo input. */
|
|
case DevFmtStereo:
|
|
return (chancount == 2 && (chanmask == 0 || (chanmask&StereoMask) == STEREO))
|
|
|| (chancount == 1 && (chanmask&MonoMask) == MONO);
|
|
/* Otherwise, the device must match the input type. */
|
|
case DevFmtQuad:
|
|
return (chancount == 4 && (chanmask == 0 || (chanmask&QuadMask) == QUAD));
|
|
/* 5.1 (Side) and 5.1 (Rear) are interchangeable here. */
|
|
case DevFmtX51:
|
|
return (chancount == 6 && (chanmask == 0 || (chanmask&X51Mask) == X5DOT1
|
|
|| (chanmask&X51RearMask) == X5DOT1REAR));
|
|
case DevFmtX61:
|
|
return (chancount == 7 && (chanmask == 0 || (chanmask&X61Mask) == X6DOT1));
|
|
case DevFmtX71:
|
|
return (chancount == 8 && (chanmask == 0 || (chanmask&X71Mask) == X7DOT1));
|
|
case DevFmtAmbi3D:
|
|
return (chanmask == 0 && chancount == device->channelsFromFmt());
|
|
}
|
|
return false;
|
|
};
|
|
if(!validate_fmt(mDevice, InputType.Format.nChannels, InputType.dwChannelMask))
|
|
{
|
|
ERR("Failed to match format, wanted: %s %s %uhz, got: 0x%08lx mask %d channel%s %d-bit %luhz\n",
|
|
DevFmtChannelsString(mDevice->FmtChans), DevFmtTypeString(mDevice->FmtType),
|
|
mDevice->Frequency, InputType.dwChannelMask, InputType.Format.nChannels,
|
|
(InputType.Format.nChannels==1)?"":"s", InputType.Format.wBitsPerSample,
|
|
InputType.Format.nSamplesPerSec);
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
DevFmtType srcType{};
|
|
if(IsEqualGUID(InputType.SubFormat, KSDATAFORMAT_SUBTYPE_PCM))
|
|
{
|
|
if(InputType.Format.wBitsPerSample == 8)
|
|
srcType = DevFmtUByte;
|
|
else if(InputType.Format.wBitsPerSample == 16)
|
|
srcType = DevFmtShort;
|
|
else if(InputType.Format.wBitsPerSample == 32)
|
|
srcType = DevFmtInt;
|
|
else
|
|
{
|
|
ERR("Unhandled integer bit depth: %d\n", InputType.Format.wBitsPerSample);
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
else if(IsEqualGUID(InputType.SubFormat, KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
|
|
{
|
|
if(InputType.Format.wBitsPerSample == 32)
|
|
srcType = DevFmtFloat;
|
|
else
|
|
{
|
|
ERR("Unhandled float bit depth: %d\n", InputType.Format.wBitsPerSample);
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ERR("Unhandled format sub-type: %s\n", GuidPrinter{InputType.SubFormat}.c_str());
|
|
return E_FAIL;
|
|
}
|
|
|
|
if(mDevice->FmtChans == DevFmtMono && InputType.Format.nChannels != 1)
|
|
{
|
|
uint chanmask{(1u<<InputType.Format.nChannels) - 1u};
|
|
/* Exclude LFE from the downmix. */
|
|
if((InputType.dwChannelMask&SPEAKER_LOW_FREQUENCY))
|
|
{
|
|
constexpr auto lfemask = MaskFromTopBits(SPEAKER_LOW_FREQUENCY);
|
|
const int lfeidx{al::popcount(InputType.dwChannelMask&lfemask) - 1};
|
|
chanmask &= ~(1u << lfeidx);
|
|
}
|
|
|
|
mChannelConv = ChannelConverter{srcType, InputType.Format.nChannels, chanmask,
|
|
mDevice->FmtChans};
|
|
TRACE("Created %s multichannel-to-mono converter\n", DevFmtTypeString(srcType));
|
|
/* The channel converter always outputs float, so change the input type
|
|
* for the resampler/type-converter.
|
|
*/
|
|
srcType = DevFmtFloat;
|
|
}
|
|
else if(mDevice->FmtChans == DevFmtStereo && InputType.Format.nChannels == 1)
|
|
{
|
|
mChannelConv = ChannelConverter{srcType, 1, 0x1, mDevice->FmtChans};
|
|
TRACE("Created %s mono-to-stereo converter\n", DevFmtTypeString(srcType));
|
|
srcType = DevFmtFloat;
|
|
}
|
|
|
|
if(mDevice->Frequency != InputType.Format.nSamplesPerSec || mDevice->FmtType != srcType)
|
|
{
|
|
mSampleConv = CreateSampleConverter(srcType, mDevice->FmtType, mDevice->channelsFromFmt(),
|
|
InputType.Format.nSamplesPerSec, mDevice->Frequency, Resampler::FastBSinc24);
|
|
if(!mSampleConv)
|
|
{
|
|
ERR("Failed to create converter for %s format, dst: %s %uhz, src: %s %luhz\n",
|
|
DevFmtChannelsString(mDevice->FmtChans), DevFmtTypeString(mDevice->FmtType),
|
|
mDevice->Frequency, DevFmtTypeString(srcType), InputType.Format.nSamplesPerSec);
|
|
return E_FAIL;
|
|
}
|
|
TRACE("Created converter for %s format, dst: %s %uhz, src: %s %luhz\n",
|
|
DevFmtChannelsString(mDevice->FmtChans), DevFmtTypeString(mDevice->FmtType),
|
|
mDevice->Frequency, DevFmtTypeString(srcType), InputType.Format.nSamplesPerSec);
|
|
}
|
|
|
|
hr = mClient->Initialize(AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
|
|
buf_time.count(), 0, &InputType.Format, nullptr);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to initialize audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
UINT32 buffer_len{};
|
|
ReferenceTime min_per{};
|
|
hr = mClient->GetDevicePeriod(&reinterpret_cast<REFERENCE_TIME&>(min_per), nullptr);
|
|
if(SUCCEEDED(hr))
|
|
hr = mClient->GetBufferSize(&buffer_len);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to get buffer size: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
mDevice->UpdateSize = RefTime2Samples(min_per, mDevice->Frequency);
|
|
mDevice->BufferSize = buffer_len;
|
|
|
|
mRing = RingBuffer::Create(buffer_len, mDevice->frameSizeFromFmt(), false);
|
|
|
|
hr = mClient->SetEventHandle(mNotifyEvent);
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to set event handle: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
void WasapiCapture::start()
|
|
{
|
|
const HRESULT hr{pushMessage(MsgType::StartDevice).get()};
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"Failed to start recording: 0x%lx", hr};
|
|
}
|
|
|
|
HRESULT WasapiCapture::startProxy()
|
|
{
|
|
ResetEvent(mNotifyEvent);
|
|
|
|
HRESULT hr{mClient->Start()};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("Failed to start audio client: 0x%08lx\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
void *ptr;
|
|
hr = mClient->GetService(IID_IAudioCaptureClient, &ptr);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
mCapture = ComPtr<IAudioCaptureClient>{static_cast<IAudioCaptureClient*>(ptr)};
|
|
try {
|
|
mKillNow.store(false, std::memory_order_release);
|
|
mThread = std::thread{std::mem_fn(&WasapiCapture::recordProc), this};
|
|
}
|
|
catch(...) {
|
|
mCapture = nullptr;
|
|
ERR("Failed to start thread\n");
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
mClient->Stop();
|
|
mClient->Reset();
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
void WasapiCapture::stop()
|
|
{ pushMessage(MsgType::StopDevice).wait(); }
|
|
|
|
void WasapiCapture::stopProxy()
|
|
{
|
|
if(!mCapture || !mThread.joinable())
|
|
return;
|
|
|
|
mKillNow.store(true, std::memory_order_release);
|
|
mThread.join();
|
|
|
|
mCapture = nullptr;
|
|
mClient->Stop();
|
|
mClient->Reset();
|
|
}
|
|
|
|
|
|
void WasapiCapture::captureSamples(al::byte *buffer, uint samples)
|
|
{ mRing->read(buffer, samples); }
|
|
|
|
uint WasapiCapture::availableSamples()
|
|
{ return static_cast<uint>(mRing->readSpace()); }
|
|
|
|
} // namespace
|
|
|
|
|
|
bool WasapiBackendFactory::init()
|
|
{
|
|
static HRESULT InitResult{E_FAIL};
|
|
|
|
if(FAILED(InitResult)) try
|
|
{
|
|
std::promise<HRESULT> promise;
|
|
auto future = promise.get_future();
|
|
|
|
std::thread{&WasapiProxy::messageHandler, &promise}.detach();
|
|
InitResult = future.get();
|
|
}
|
|
catch(...) {
|
|
}
|
|
|
|
return SUCCEEDED(InitResult);
|
|
}
|
|
|
|
bool WasapiBackendFactory::querySupport(BackendType type)
|
|
{ return type == BackendType::Playback || type == BackendType::Capture; }
|
|
|
|
std::string WasapiBackendFactory::probe(BackendType type)
|
|
{
|
|
std::string outnames;
|
|
switch(type)
|
|
{
|
|
case BackendType::Playback:
|
|
WasapiProxy::pushMessageStatic(MsgType::EnumeratePlayback).wait();
|
|
for(const DevMap &entry : PlaybackDevices)
|
|
{
|
|
/* +1 to also append the null char (to ensure a null-separated list
|
|
* and double-null terminated list).
|
|
*/
|
|
outnames.append(DevNameHead).append(entry.name.c_str(), entry.name.length()+1);
|
|
}
|
|
break;
|
|
|
|
case BackendType::Capture:
|
|
WasapiProxy::pushMessageStatic(MsgType::EnumerateCapture).wait();
|
|
for(const DevMap &entry : CaptureDevices)
|
|
outnames.append(DevNameHead).append(entry.name.c_str(), entry.name.length()+1);
|
|
break;
|
|
}
|
|
|
|
return outnames;
|
|
}
|
|
|
|
BackendPtr WasapiBackendFactory::createBackend(DeviceBase *device, BackendType type)
|
|
{
|
|
if(type == BackendType::Playback)
|
|
return BackendPtr{new WasapiPlayback{device}};
|
|
if(type == BackendType::Capture)
|
|
return BackendPtr{new WasapiCapture{device}};
|
|
return nullptr;
|
|
}
|
|
|
|
BackendFactory &WasapiBackendFactory::getFactory()
|
|
{
|
|
static WasapiBackendFactory factory{};
|
|
return factory;
|
|
}
|