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jiegeaiai 2024-09-29 00:29:59 +08:00
commit ffb26ec077
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31
AudioRender.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.11.35303.130
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "AudioRender", "AudioRender\AudioRender.vcxproj", "{095FA653-16F9-4AAE-87E9-3E467A5E8564}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|x86 = Debug|x86
Release|x64 = Release|x64
Release|x86 = Release|x86
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Debug|x64.ActiveCfg = Debug|x64
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Debug|x64.Build.0 = Debug|x64
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Debug|x86.ActiveCfg = Debug|Win32
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Debug|x86.Build.0 = Debug|Win32
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{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Release|x64.Build.0 = Release|x64
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Release|x86.ActiveCfg = Release|Win32
{095FA653-16F9-4AAE-87E9-3E467A5E8564}.Release|x86.Build.0 = Release|Win32
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GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
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GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {50A43890-42B5-46B3-AF83-E4977344D4B1}
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BIN
AudioRender/.vs/AudioRender/FileContentIndex/b7341f62-5739-4a30-9c07-29cbb18288f4.vsidx Normal file
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AudioRender/.vs/AudioRender/v17/.suo Normal file
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AudioRender/.vs/AudioRender/v17/Browse.VC.db Normal file
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{
"Version": 1,
"WorkspaceRootPath": "D:\\Project\\AudioRender\\AudioRender\\",
"Documents": [],
"DocumentGroupContainers": [
{
"Orientation": 0,
"VerticalTabListWidth": 256,
"DocumentGroups": []
}
]
}

27
AudioRender/AudioRender.cpp Normal file
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#include "AudioRender.h"
#include <assert.h>
#include <memory>
#include "IAudioRender.h"
static std::unique_ptr<IAudioRender> audiosRender_;
bool __stdcall Initialize(const char* sender_name, const char* receiver_name) {
assert(!audiosRender_);
audiosRender_.reset(IAudioRender::Create());
return true;
}
bool __stdcall Write(const unsigned char* data, unsigned int len) {
assert(audiosRender_);
std::vector<unsigned char> audio(len, 0);
memcpy(&audio[0], data, len);
AudioFrame frame = { audio, 0 };
return audiosRender_->Write(frame);
}
void __stdcall Uninitialize() {
assert(audiosRender_);
audiosRender_.reset();
}

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#pragma once
#if defined(WIN32)
#ifdef AUDIO_RENDER_LIB
#define AUDIO_RENDER_EXPORT __declspec( dllexport )
#else
#define AUDIO_RENDER_EXPORT __declspec( dllimport )
#endif
#endif // WIN32
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
AUDIO_RENDER_EXPORT bool __stdcall Initialize(const char* sender_name, const char* receiver_name);
AUDIO_RENDER_EXPORT bool __stdcall Write(const unsigned char* data, unsigned int len);
AUDIO_RENDER_EXPORT void __stdcall Uninitialize();
#ifdef __cplusplus
}
#endif // __cplusplus

150
AudioRender/AudioRender.vcxproj Normal file
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<Keyword>Win32Proj</Keyword>
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<RootNamespace>AudioRender</RootNamespace>
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<ClCompile>
<WarningLevel>Level3</WarningLevel>
<SDLCheck>true</SDLCheck>
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<Link>
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<ClInclude Include="AudioRender.h" />
<ClInclude Include="AudioRenderStd.h" />
<ClInclude Include="IAudioRender.h" />
<ClInclude Include="Windows\CoreAudioRender.h" />
<ClInclude Include="Windows\SectionLock.h" />
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54
AudioRender/AudioRender.vcxproj.filters Normal file
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4
AudioRender/AudioRender.vcxproj.user Normal file
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<PropertyGroup />
</Project>

7
AudioRender/AudioRenderStd.cpp Normal file
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#include "AudioRenderStd.h"
#include "Windows/WavAudioRender.h"
IAudioRender* IAudioRender::Create() {
return new WavAudioRender;
}

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AudioRender/AudioRenderStd.h Normal file
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#pragma once
#include "IAudioRender.h"
class AudioRenderStd : public IAudioRender {
public:
~AudioRenderStd() override = default;
uint64 GetClock() override {
return 0;
}
};

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AudioRender/IAudioRender.h Normal file
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#pragma once
#include <vector>
using int8 = char;
using uint8 = unsigned char;
using int16 = short;
using uint16 = unsigned short;
using int32 = int;
using uint32 = unsigned int;
using int64 = long long;
using uint64 = unsigned long long;
struct AudioFrame {
std::vector<uint8> data_;
uint64 dts_{ 0 };
};
class IAudioRender {
public:
static IAudioRender* Create();
public:
virtual ~IAudioRender() = default;
virtual uint64 GetClock() = 0;
virtual bool Write(const AudioFrame& audioFrame) = 0;
};

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AudioRender/Windows/CoreAudioRender.cpp Normal file
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#include "CoreAudioRender.h"

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AudioRender/Windows/CoreAudioRender.h Normal file
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#pragma once
#include "IAudioRender.h"
class CoreAudioRender : public IAudioRender {
};

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AudioRender/Windows/SectionLock.cpp Normal file
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#include "Windows/SectionLock.h"
SectionLock::SectionLock() noexcept {
InitializeCriticalSection(&section_);
}
SectionLock::~SectionLock() {
DeleteCriticalSection(&section_);
}
void SectionLock::Lock() {
EnterCriticalSection(&section_);
}
bool SectionLock::TryLock() {
bool success = TryEnterCriticalSection(&section_);
return success;
}
void SectionLock::UnLock() {
LeaveCriticalSection(&section_);
}

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#pragma once
#include <Windows.h>
class SectionLock {
public:
explicit SectionLock() noexcept;
explicit SectionLock(const SectionLock& ) = delete;
SectionLock& operator= (const SectionLock&) = delete;
~SectionLock();
void Lock();
bool TryLock();
void UnLock();
private:
CRITICAL_SECTION section_;
};
template <class Lock>
class Locker {
public:
explicit Locker(Lock& lock) noexcept : lock_(lock) {
lock_.Lock();
}
explicit Locker(const Locker&) = delete;
Locker& operator= (const Locker&) = delete;
~Locker() {
lock_.UnLock();
}
private:
Lock& lock_;
};

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AudioRender/Windows/WavAudioRender.cpp Normal file
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#include "Windows/WavAudioRender.h"
#include <windows.h>
#include <mmsystem.h>
static WAVEHDR* AllocateBlocks(uint32 size, int32 count) {
uint32 totalBufferSize = (size + sizeof(WAVEHDR)) * count;
uint8* buffer{ nullptr };
if ((buffer = reinterpret_cast<uint8*>(HeapAlloc(
GetProcessHeap(),
HEAP_ZERO_MEMORY,
totalBufferSize
))) == NULL) {
ExitProcess(1);
}
WAVEHDR* blocks = reinterpret_cast<WAVEHDR*>(buffer);
buffer += sizeof(WAVEHDR) * count;
for (int32 index = 0; index < count; ++index) {
blocks[index].dwBufferLength = size;
blocks[index].lpData = (LPSTR)buffer;
blocks[index].dwFlags = 0;
buffer += size;
}
return blocks;
}
static void FreeBlocks(WAVEHDR* blockArray) {
HeapFree(GetProcessHeap(), 0, blockArray);
}
WavAudioRender::WavAudioRender() noexcept {
HWAVEOUT hWaveOut = nullptr;
waveBlocks_ = AllocateBlocks(BlockSize_, BlockCount_);
constexpr int32 rate = 16000;
constexpr int32 channel = 1;
constexpr int32 bitePerSample = 16;
WAVEFORMATEX waveform;
waveform.wFormatTag = WAVE_FORMAT_PCM;
waveform.nChannels = channel;
waveform.nSamplesPerSec = rate;
waveform.nAvgBytesPerSec = rate * channel * 2;
waveform.nBlockAlign = channel * 2;
waveform.wBitsPerSample = bitePerSample;
waveform.cbSize = 0;
MMRESULT hr = waveOutOpen(&hWaveOut, WAVE_MAPPER, &waveform,
reinterpret_cast<DWORD_PTR>(WavAudioRender::waveOutProc),
reinterpret_cast<DWORD_PTR>(this), CALLBACK_FUNCTION);
if (MMSYSERR_NOERROR == hr) {
return;
}
hWavout_ = std::move(hWaveOut);
}
WavAudioRender::~WavAudioRender() {
if (nullptr == hWavout_) {
return;
}
waveOutReset(hWavout_);
for (int i = 0; i < BlockCount_; i++) {
if (waveBlocks_[i].dwFlags & WHDR_PREPARED) {
waveOutUnprepareHeader(hWavout_, &waveBlocks_[i], sizeof(WAVEHDR));
}
}
do {
MMRESULT ret = waveOutClose(hWavout_);
if (MMSYSERR_NOERROR == ret) {
break;
} else if (WAVERR_STILLPLAYING == ret) {
::Sleep(1);
} else if (MMSYSERR_NOMEM == ret) {
break;
} else {
break;
}
} while (true);
FreeBlocks(waveBlocks_);
}
bool WavAudioRender::Write(const AudioFrame& audioFrame) {
if (nullptr == hWavout_) {
return false;
}
WAVEHDR* current;
int32 remain;
current = &waveBlocks_[waveCurrentBlock_];
uint64 size = audioFrame.data_.size();
const uint8* data = audioFrame.data_.data();
while (size > 0) {
if (current->dwFlags & WHDR_PREPARED) {
waveOutUnprepareHeader(hWavout_, current, sizeof(WAVEHDR));
}
if (size < (int)(BlockSize_ - current->dwUser)) {
memcpy(current->lpData + current->dwUser, data, size);
current->dwUser += size;
break;
}
remain = BlockSize_ - static_cast<int32>(current->dwUser);
memcpy(current->lpData + current->dwUser, data, remain);
size -= remain;
data += remain;
current->dwBufferLength = BlockSize_;
waveOutPrepareHeader(hWavout_, current, sizeof(WAVEHDR));
waveOutWrite(hWavout_, current, sizeof(WAVEHDR));
{
Locker<SectionLock> locker(lock_);
--freeBlockCounter_;
}
while (!freeBlockCounter_) {
Sleep(1);
}
++waveCurrentBlock_;
waveCurrentBlock_ %= BlockCount_;
current = &waveBlocks_[waveCurrentBlock_];
current->dwUser = 0;
}
return true;
}
void CALLBACK WavAudioRender::waveOutProc(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
DWORD_PTR dwParam1, DWORD_PTR dwParam2) {
WavAudioRender* self = reinterpret_cast<WavAudioRender*>(dwInstance);
if (uMsg != WOM_DONE)
return;
self->FreeBlock();
}
void WavAudioRender::FreeBlock() {
Locker<SectionLock> locker(lock_);
++freeBlockCounter_;
}

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AudioRender/Windows/WavAudioRender.h Normal file
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#pragma once
#include "AudioRenderStd.h"
#include "Windows/SectionLock.h"
class WavAudioRender : public AudioRenderStd {
public:
explicit WavAudioRender() noexcept;
~WavAudioRender() override;
bool Write(const AudioFrame& audioFrame) override;
private:
static void CALLBACK waveOutProc(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
DWORD_PTR dwParam1, DWORD_PTR dwParam2);
void FreeBlock();
private:
int64_t audioPts_{ 0 };
static constexpr int BlockSize_{ 6400 };
static constexpr int BlockCount_{ 10 };
SectionLock lock_;
uint32 freeBlockCounter_{ BlockCount_ };
uint32 waveCurrentBlock_{ 0 };
WAVEHDR* waveBlocks_{ nullptr };
HWAVEOUT hWavout_{ nullptr };
};