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libsoundio audio renderer for Windows and Mac (#97)

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This commit is contained in:
Cameron Gutman 2018-10-05 19:22:57 -07:00 committed by GitHub
parent 6661ca17c2
commit e182445593
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GPG key ID: 4AEE18F83AFDEB23
37 changed files with 625 additions and 5828 deletions
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3
.gitmodules vendored
View file

@ -7,3 +7,6 @@
[submodule "app/SDL_GameControllerDB"]
path = app/SDL_GameControllerDB
url = https://github.com/gabomdq/SDL_GameControllerDB.git
[submodule "soundio/libsoundio"]
path = soundio/libsoundio
url = https://github.com/andrewrk/libsoundio.git

51
app/app.pro
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@ -52,12 +52,15 @@ macx {
}
unix:!macx {
CONFIG += link_pkgconfig
CONFIG += link_pkgconfig soundio
PKGCONFIG += openssl sdl2 opus
packagesExist(portaudio-2.0) {
PKGCONFIG += portaudio-2.0
CONFIG += portaudio
# For libsoundio
packagesExist(libpulse) {
PKGCONFIG += libpulse
}
packagesExist(alsa) {
PKGCONFIG += alsa
}
packagesExist(libavcodec) {
@ -80,13 +83,17 @@ unix:!macx {
}
}
win32 {
LIBS += -llibssl -llibcrypto -lSDL2 -lavcodec -lavutil -lopus -lportaudio
CONFIG += ffmpeg portaudio
LIBS += -llibssl -llibcrypto -lSDL2 -lavcodec -lavutil -lopus
CONFIG += ffmpeg soundio
}
macx {
LIBS += -lssl -lcrypto -lavcodec.58 -lavutil.56 -lopus -lportaudio -framework SDL2
LIBS += -lssl -lcrypto -lavcodec.58 -lavutil.56 -lopus -framework SDL2
LIBS += -lobjc -framework VideoToolbox -framework AVFoundation -framework CoreVideo -framework CoreGraphics -framework CoreMedia -framework AppKit
CONFIG += ffmpeg portaudio
# For libsoundio
LIBS += -framework CoreAudio -framework AudioUnit
CONFIG += ffmpeg soundio
}
SOURCES += \
@ -103,6 +110,7 @@ SOURCES += \
streaming/input.cpp \
streaming/session.cpp \
streaming/audio/audio.cpp \
streaming/audio/renderers/sdlaud.cpp \
gui/computermodel.cpp \
gui/appmodel.cpp \
streaming/streamutils.cpp \
@ -125,6 +133,7 @@ HEADERS += \
streaming/input.h \
streaming/session.h \
streaming/audio/renderers/renderer.h \
streaming/audio/renderers/sdl.h \
gui/computermodel.h \
gui/appmodel.h \
streaming/video/decoder.h \
@ -185,13 +194,8 @@ config_SLVideo {
DEFINES += HAVE_SLVIDEO
LIBS += -lSLVideo
SOURCES += \
streaming/video/sl.cpp \
streaming/audio/renderers/sdlaud.cpp
HEADERS += \
streaming/video/sl.h \
streaming/audio/renderers/sdl.h
SOURCES += streaming/video/sl.cpp
HEADERS += streaming/video/sl.h
}
win32 {
message(DXVA2 renderer selected)
@ -215,12 +219,12 @@ macx {
streaming/video/ffmpeg-renderers/vt.h \
streaming/video/ffmpeg-renderers/pacer/displaylinkvsyncsource.h
}
portaudio {
message(PortAudio audio renderer selected)
soundio {
message(libsoundio audio renderer selected)
DEFINES += HAVE_PORTAUDIO
SOURCES += streaming/audio/renderers/portaudiorenderer.cpp
HEADERS += streaming/audio/renderers/portaudiorenderer.h
DEFINES += HAVE_SOUNDIO SOUNDIO_STATIC_LIBRARY
SOURCES += streaming/audio/renderers/soundioaudiorenderer.cpp
HEADERS += streaming/audio/renderers/soundioaudiorenderer.h
}
RESOURCES += \
@ -247,6 +251,13 @@ else:unix: LIBS += -L$$OUT_PWD/../qmdnsengine/ -lqmdnsengine
INCLUDEPATH += $$PWD/../qmdnsengine/qmdnsengine/src/include $$PWD/../qmdnsengine
DEPENDPATH += $$PWD/../qmdnsengine/qmdnsengine/src/include $$PWD/../qmdnsengine
win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../soundio/release/ -lsoundio
else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../soundio/debug/ -lsoundio
else:unix: LIBS += -L$$OUT_PWD/../soundio/ -lsoundio
INCLUDEPATH += $$PWD/../soundio/libsoundio
DEPENDPATH += $$PWD/../soundio/libsoundio
unix:!macx: {
isEmpty(PREFIX) {
PREFIX = /usr/local

18
app/streaming/audio/audio.cpp
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@ -1,8 +1,8 @@
#include "../session.h"
#include "renderers/renderer.h"
#ifdef HAVE_PORTAUDIO
#include "renderers/portaudiorenderer.h"
#ifndef Q_OS_LINUX
#include "renderers/soundioaudiorenderer.h"
#else
#include "renderers/sdl.h"
#endif
@ -11,8 +11,8 @@
IAudioRenderer* Session::createAudioRenderer()
{
#ifdef HAVE_PORTAUDIO
return new PortAudioRenderer();
#ifndef Q_OS_LINUX
return new SoundIoAudioRenderer();
#else
return new SdlAudioRenderer();
#endif
@ -101,6 +101,16 @@ void Session::arDecodeAndPlaySample(char* sampleData, int sampleLength)
{
int samplesDecoded;
// Set this thread to high priority to reduce
// the chance of missing our sample delivery time
if (s_ActiveSession->m_AudioSampleCount == 0) {
if (SDL_SetThreadPriority(SDL_THREAD_PRIORITY_HIGH) < 0) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Unable to set audio thread to high priority: %s",
SDL_GetError());
}
}
s_ActiveSession->m_AudioSampleCount++;
if (s_ActiveSession->m_AudioRenderer != nullptr) {

141
app/streaming/audio/renderers/portaudiorenderer.cpp
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@ -1,141 +0,0 @@
#include "portaudiorenderer.h"
#include <SDL.h>
#include <atomic>
PortAudioRenderer::PortAudioRenderer()
: m_Stream(nullptr),
m_ChannelCount(0),
m_WriteIndex(0),
m_ReadIndex(0),
m_Started(false)
{
PaError error = Pa_Initialize();
if (error != paNoError) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Pa_Initialize() failed: %s",
Pa_GetErrorText(error));
return;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Initialized PortAudio: %s",
Pa_GetVersionText());
}
PortAudioRenderer::~PortAudioRenderer()
{
if (m_Stream != nullptr) {
Pa_CloseStream(m_Stream);
}
Pa_Terminate();
}
bool PortAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
{
PaStreamParameters params = {};
m_ChannelCount = opusConfig->channelCount;
PaDeviceIndex outputDeviceIndex = Pa_GetDefaultOutputDevice();
if (outputDeviceIndex == paNoDevice) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"No output device available");
return false;
}
const PaDeviceInfo* deviceInfo = Pa_GetDeviceInfo(outputDeviceIndex);
if (deviceInfo == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Pa_GetDeviceInfo() failed");
return false;
}
params.channelCount = opusConfig->channelCount;
params.sampleFormat = paInt16;
params.device = outputDeviceIndex;
params.suggestedLatency = deviceInfo->defaultLowOutputLatency;
PaError error = Pa_OpenStream(&m_Stream, nullptr, &params,
opusConfig->sampleRate,
SAMPLES_PER_FRAME,
paNoFlag,
paStreamCallback, this);
if (error != paNoError) {
m_Stream = nullptr;
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Pa_OpenStream() failed: %s",
Pa_GetErrorText(error));
return false;
}
return true;
}
bool PortAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
{
SDL_assert(audioSize == SAMPLES_PER_FRAME * m_ChannelCount * 2);
// Check if there is space for this sample in the buffer. Again, this can race
// but in the worst case, we'll not see the sample callback having consumed a sample.
if (((m_WriteIndex + 1) % CIRCULAR_BUFFER_SIZE) == m_ReadIndex) {
return true;
}
SDL_memcpy(&m_AudioBuffer[m_WriteIndex * CIRCULAR_BUFFER_STRIDE], audioBuffer, audioSize);
// Fence with release semantics ensures m_AudioBuffer[m_WriteIndex] is written before the
// consumer observes m_WriteIndex incrementing.
std::atomic_thread_fence(std::memory_order_release);
// This can race with the reader in the sample callback, however this is a benign
// race since we'll either read the original value of m_WriteIndex (which is safe,
// we just won't consider this sample) or the new value of m_WriteIndex
m_WriteIndex = (m_WriteIndex + 1) % CIRCULAR_BUFFER_SIZE;
// Start the stream after we've written the first sample to it
if (!m_Started) {
PaError error = Pa_StartStream(m_Stream);
if (error != paNoError) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Pa_StartStream() failed: %s",
Pa_GetErrorText(error));
return false;
}
m_Started = true;
}
return true;
}
int PortAudioRenderer::paStreamCallback(const void*, void* output, unsigned long frameCount, const PaStreamCallbackTimeInfo*, PaStreamCallbackFlags, void* userData)
{
auto me = reinterpret_cast<PortAudioRenderer*>(userData);
SDL_assert(frameCount == SAMPLES_PER_FRAME);
// If the indexes aren't equal, we have a sample
if (me->m_WriteIndex != me->m_ReadIndex) {
// Copy data to the audio buffer
SDL_memcpy(output,
&me->m_AudioBuffer[me->m_ReadIndex * CIRCULAR_BUFFER_STRIDE],
frameCount * me->m_ChannelCount * sizeof(short));
// Fence with acquire semantics ensures m_AudioBuffer[m_ReadIndex] is read before the
// producer observes m_ReadIndex incrementing.
std::atomic_thread_fence(std::memory_order_acquire);
// This can race with the reader in the submitAudio function. This is not a problem
// because at worst, it just won't see that we've consumed this sample yet.
me->m_ReadIndex = (me->m_ReadIndex + 1) % CIRCULAR_BUFFER_SIZE;
}
else {
// No data, so play silence
SDL_memset(output, 0, frameCount * me->m_ChannelCount * sizeof(short));
}
return paContinue;
}

38
app/streaming/audio/renderers/portaudiorenderer.h
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@ -1,38 +0,0 @@
#pragma once
#include <portaudio.h>
#include "renderer.h"
#define CIRCULAR_BUFFER_SIZE 16
#define MAX_CHANNEL_COUNT 6
#define CIRCULAR_BUFFER_STRIDE (MAX_CHANNEL_COUNT * SAMPLES_PER_FRAME)
class PortAudioRenderer : public IAudioRenderer
{
public:
PortAudioRenderer();
virtual ~PortAudioRenderer();
virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
virtual bool submitAudio(short* audioBuffer, int audioSize);
static int paStreamCallback(const void *input,
void *output,
unsigned long frameCount,
const PaStreamCallbackTimeInfo *timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData);
private:
PaStream* m_Stream;
int m_ChannelCount;
int m_WriteIndex;
int m_ReadIndex;
bool m_Started;
short m_AudioBuffer[CIRCULAR_BUFFER_SIZE * CIRCULAR_BUFFER_STRIDE];
};

5
app/streaming/audio/renderers/sdl.h
View file

@ -3,11 +3,6 @@
#include "renderer.h"
#include <SDL.h>
#ifndef HAVE_SLVIDEO
#error SDL audio backend is only available for Steam Link
#error Please install PortAudio to build for Linux
#endif
class SdlAudioRenderer : public IAudioRenderer
{
public:

436
app/streaming/audio/renderers/soundioaudiorenderer.cpp Normal file
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@ -0,0 +1,436 @@
#include "soundioaudiorenderer.h"
#include <SDL.h>
#include <QtGlobal>
SoundIoAudioRenderer::SoundIoAudioRenderer()
: m_OpusChannelCount(0),
m_SoundIo(nullptr),
m_Device(nullptr),
m_OutputStream(nullptr),
m_RingBuffer(nullptr),
m_Errored(false)
{
}
SoundIoAudioRenderer::~SoundIoAudioRenderer()
{
if (m_OutputStream != nullptr) {
soundio_outstream_destroy(m_OutputStream);
}
// Must be destroyed after the stream is stopped
// or we could still get sioWriteCallback() calls.
if (m_RingBuffer != nullptr) {
soundio_ring_buffer_destroy(m_RingBuffer);
}
if (m_Device != nullptr) {
soundio_device_unref(m_Device);
}
if (m_SoundIo != nullptr) {
soundio_destroy(m_SoundIo);
}
}
int SoundIoAudioRenderer::scoreChannelLayout(const struct SoundIoChannelLayout* layout, const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
{
int score = 50;
// Compute a score for this layout based on how many matching channels
// we find (or acceptable alternatives).
for (int i = 0; i < layout->channel_count; i++) {
if (opusConfig->channelCount >= 2) {
switch (layout->channels[i]) {
case SoundIoChannelIdFrontLeft:
case SoundIoChannelIdFrontRight:
score += 2;
break;
default:
break;
}
}
if (opusConfig->channelCount >= 6) {
switch (layout->channels[i]) {
case SoundIoChannelIdFrontCenter:
case SoundIoChannelIdLfe:
score += 2;
break;
case SoundIoChannelIdSideLeft:
case SoundIoChannelIdSideRight:
score++;
break;
// Score layouts using the back L/R as higher
// value than those using side L/R.
case SoundIoChannelIdBackLeft:
case SoundIoChannelIdBackRight:
score += 2;
break;
default:
break;
}
}
}
// Now subtract the difference between the desired and actual channel count
// to punish layouts that have extra unused speakers.
if (opusConfig->channelCount < layout->channel_count) {
score -= layout->channel_count - opusConfig->channelCount;
}
return score;
}
bool SoundIoAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
{
m_SoundIo = soundio_create();
if (m_SoundIo == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_create() failed");
return false;
}
m_SoundIo->app_name = "Moonlight";
m_SoundIo->userdata = this;
m_SoundIo->on_backend_disconnect = sioBackendDisconnect;
m_SoundIo->on_devices_change = sioDevicesChanged;
int err = soundio_connect(m_SoundIo);
if (err != SoundIoErrorNone) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_connect() failed: %s",
soundio_strerror(err));
return false;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Audio backend: %s",
soundio_backend_name(m_SoundIo->current_backend));
// Don't continue if we could only open the dummy backend
if (m_SoundIo->current_backend == SoundIoBackendDummy) {
return false;
}
// Flush events to update with new device arrivals
soundio_flush_events(m_SoundIo);
// Remember the actual channel count for later
m_OpusChannelCount = opusConfig->channelCount;
int outputDeviceIndex = soundio_default_output_device_index(m_SoundIo);
if (outputDeviceIndex < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"No output device found");
return false;
}
m_Device = soundio_get_output_device(m_SoundIo, outputDeviceIndex);
if (m_Device == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_get_output_device() failed");
return false;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Selected audio device: %s",
m_Device->name);
m_OutputStream = soundio_outstream_create(m_Device);
if (m_OutputStream == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_outstream_create() failed");
return false;
}
m_OutputStream->format = SoundIoFormatS16NE;
m_OutputStream->sample_rate = opusConfig->sampleRate;
m_OutputStream->name = "Moonlight";
m_OutputStream->userdata = this;
m_OutputStream->error_callback = sioErrorCallback;
m_OutputStream->write_callback = sioWriteCallback;
// This determines the size of the buffers we'll
// get from CoreAudio. Since GFE sends us packets
// in 5 ms chunks, we'll give them to the OS in
// buffers of the same size.
m_OutputStream->software_latency = 0.005;
SoundIoChannelLayout bestLayout = m_Device->current_layout;
for (int i = 0; i < m_Device->layout_count; i++) {
if (scoreChannelLayout(&bestLayout, opusConfig) <
scoreChannelLayout(&m_Device->layouts[i], opusConfig)) {
bestLayout = m_Device->layouts[i];
}
}
if (bestLayout.channel_count < opusConfig->channelCount) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No compatible channel layouts found. Some channels may not be played!");
}
m_OutputStream->layout = bestLayout;
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Native layout: %s (%d channels)",
m_OutputStream->layout.name ?
m_OutputStream->layout.name : "<UNKNOWN>",
m_OutputStream->layout.channel_count);
err = soundio_outstream_open(m_OutputStream);
if (err != SoundIoErrorNone) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_outstream_open() failed: %s",
soundio_strerror(err));
return false;
}
if (m_OutputStream->layout_error) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Channel layout failed: %s",
soundio_strerror(m_OutputStream->layout_error));
// ALSA through PulseAudio appears to fail snd_pcm_set_chmap()
// even after claiming the layout is supported (and even on totally
// standard layouts like Stereo). We'll just ignore this for ALSA
// and only bail if we get an actual failure out of one of these APIs.
if (m_SoundIo->current_backend != SoundIoBackendAlsa) {
return false;
}
}
m_EffectiveLayout = m_OutputStream->layout;
for (int i = 0; i < m_EffectiveLayout.channel_count; i++) {
// Fixup the layout to use back L/R so our channel position
// logic in sioWriteCallback() works.
if (m_EffectiveLayout.channels[i] == SoundIoChannelIdSideLeft) {
m_EffectiveLayout.channels[i] = SoundIoChannelIdBackLeft;
}
if (m_EffectiveLayout.channels[i] == SoundIoChannelIdSideRight) {
m_EffectiveLayout.channels[i] = SoundIoChannelIdBackRight;
}
}
// Buffer up to 6 packets of audio (30 ms) to smooth
// out network packet delivery jitter
m_RingBuffer = soundio_ring_buffer_create(m_SoundIo,
m_OutputStream->bytes_per_sample *
m_OpusChannelCount *
SAMPLES_PER_FRAME * 6);
if (m_RingBuffer == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_ring_buffer_create() failed");
return false;
}
err = soundio_outstream_start(m_OutputStream);
if (err != SoundIoErrorNone) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_outstream_start() failed: %s",
soundio_strerror(err));
return false;
}
return true;
}
bool SoundIoAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
{
if (m_Errored) {
return false;
}
// Flush events to update with new device arrivals
soundio_flush_events(m_SoundIo);
// We must always write a full frame of audio. If we don't,
// the reader will get out of sync with the writer and our
// channels will get all mixed up. To ensure this is always
// the case, round our bytes free down to the next multiple
// of our frame size.
int bytesFree = soundio_ring_buffer_free_count(m_RingBuffer);
int bytesPerFrame = m_OpusChannelCount * m_OutputStream->bytes_per_sample;
int bytesToWrite = qMin(audioSize, (bytesFree / bytesPerFrame) * bytesPerFrame);
memcpy(soundio_ring_buffer_write_ptr(m_RingBuffer), audioBuffer, bytesToWrite);
soundio_ring_buffer_advance_write_ptr(m_RingBuffer, bytesToWrite);
return true;
}
void SoundIoAudioRenderer::sioErrorCallback(SoundIoOutStream* stream, int err)
{
auto me = reinterpret_cast<SoundIoAudioRenderer*>(stream->userdata);
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Audio rendering error: %s",
soundio_strerror(err));
// Trigger reinitialization
me->m_Errored = true;
}
void SoundIoAudioRenderer::sioBackendDisconnect(SoundIo* soundio, int err)
{
auto me = reinterpret_cast<SoundIoAudioRenderer*>(soundio->userdata);
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Audio backend disconnected: %s",
soundio_strerror(err));
// Trigger reinitialization
me->m_Errored = true;
}
void SoundIoAudioRenderer::sioDevicesChanged(SoundIo* soundio)
{
auto me = reinterpret_cast<SoundIoAudioRenderer*>(soundio->userdata);
if (me->m_Device == nullptr) {
// Ignore calls that take place during initialization
return;
}
int outputDeviceIndex = soundio_default_output_device_index(soundio);
if (outputDeviceIndex >= 0) {
struct SoundIoDevice* outputDevice = soundio_get_output_device(soundio, outputDeviceIndex);
if (outputDevice == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_get_output_device() failed");
return;
}
if (!soundio_device_equal(outputDevice, me->m_Device)) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Default audio output device changed");
// Trigger reinitialization
me->m_Errored = true;
}
soundio_device_unref(outputDevice);
}
}
// bytes_per_frame should never be used on the ring buffer! It's not always
// the same number of bytes per frames as the output stream!
void SoundIoAudioRenderer::sioWriteCallback(SoundIoOutStream* stream, int frameCountMin, int frameCountMax)
{
auto me = reinterpret_cast<SoundIoAudioRenderer*>(stream->userdata);
char* readPtr = soundio_ring_buffer_read_ptr(me->m_RingBuffer);
int framesLeft = soundio_ring_buffer_fill_count(me->m_RingBuffer) /
(me->m_OpusChannelCount * stream->bytes_per_sample);
int bytesRead = 0;
// Clamp framesLeft to frameCountMax
framesLeft = qMin(framesLeft, frameCountMax);
// Place an upper-bound on audio stream latency to
// avoid accumulating packets in queue-based backends
// like WASAPI. This bound was set by testing on several
// Windows machines. The highest latency was found on
// a XPS 9343 running Windows 7 in Steam Big Picture
// and the 5.1 audio test clip from Fraunhofer.
if (me->m_SoundIo->current_backend == SoundIoBackendWasapi) {
double latency;
if (soundio_outstream_get_latency(stream, &latency) == SoundIoErrorNone) {
if (latency > 0.050) {
// If our latency is higher than desired, drop these samples to gracefully lower
// the latency without glitching too much. Dropping the whole buffer causes
// a much more noticeable glitch. This approach also ensures that we don't
// accidentally underflow if the driver/kernel side is delayed and isn't
// consuming data fast enough. Dropping a frame at a time and re-evaluating
// each time ensures that we'll stop dropping if latency returns to normal.
readPtr += framesLeft * stream->bytes_per_sample * me->m_OpusChannelCount;
bytesRead += framesLeft * stream->bytes_per_sample * me->m_OpusChannelCount;
framesLeft = 0;
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Latency exceeded drop cap: %f",
latency);
}
}
}
for (;;) {
int frameCount;
int err;
struct SoundIoChannelArea* areas;
// Always meet the minimum but don't write more than that
// if we'll have to insert silence
frameCount = qMax(framesLeft, frameCountMin);
if (frameCount == 0) {
// Nothing more to write
break;
}
err = soundio_outstream_begin_write(stream, &areas, &frameCount);
if (err != SoundIoErrorNone) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_outstream_begin_write() failed: %s",
soundio_strerror(err));
break;
}
for (int frame = 0; frame < frameCount; frame++) {
for (int ch = 0; ch < me->m_EffectiveLayout.channel_count; ch++) {
// SoundIoChannelId - 1 happens to match Moonlight's channel layout.
// For side L/R, this logic depends on us fixing those up
// in m_EffectiveLayout to back L/R.
int readPtrChannel = me->m_EffectiveLayout.channels[ch] - 1;
if (frame >= framesLeft || readPtrChannel >= me->m_OpusChannelCount) {
// Write silence if we have no buffered frames left or
// nothing in the audio stream for this channel
memset(areas[ch].ptr, 0, stream->bytes_per_sample);
}
else {
// Write audio data from our ring buffer
memcpy(areas[ch].ptr,
&readPtr[readPtrChannel * stream->bytes_per_sample],
stream->bytes_per_sample);
}
areas[ch].ptr += areas[ch].step;
}
// Move on to the next frame if we aren't inserting silence
if (frame < framesLeft) {
readPtr += stream->bytes_per_sample * me->m_OpusChannelCount;
bytesRead += stream->bytes_per_sample * me->m_OpusChannelCount;
}
}
err = soundio_outstream_end_write(stream);
if (err != SoundIoErrorNone && err != SoundIoErrorUnderflow) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"soundio_outstream_end_write() failed: %s",
soundio_strerror(err));
break;
}
if (framesLeft >= frameCount) {
framesLeft -= frameCount;
}
else {
framesLeft = 0;
}
if (frameCountMin >= frameCount) {
frameCountMin -= frameCount;
}
else {
frameCountMin = 0;
}
}
soundio_ring_buffer_advance_read_ptr(me->m_RingBuffer, bytesRead);
}

36
app/streaming/audio/renderers/soundioaudiorenderer.h Normal file
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@ -0,0 +1,36 @@
#pragma once
#include "renderer.h"
#include <soundio/soundio.h>
class SoundIoAudioRenderer : public IAudioRenderer
{
public:
SoundIoAudioRenderer();
~SoundIoAudioRenderer();
virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
virtual bool submitAudio(short* audioBuffer, int audioSize);
private:
int scoreChannelLayout(const struct SoundIoChannelLayout* layout, const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
static void sioErrorCallback(struct SoundIoOutStream* stream, int err);
static void sioWriteCallback(struct SoundIoOutStream* stream, int frameCountMin, int frameCountMax);
static void sioBackendDisconnect(struct SoundIo* soundio, int err);
static void sioDevicesChanged(SoundIo* soundio);
int m_OpusChannelCount;
struct SoundIo* m_SoundIo;
struct SoundIoDevice* m_Device;
struct SoundIoOutStream* m_OutputStream;
struct SoundIoRingBuffer* m_RingBuffer;
struct SoundIoChannelLayout m_EffectiveLayout;
bool m_Errored;
};

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#ifndef PA_ASIO_H
#define PA_ASIO_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* ASIO specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief ASIO-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/** Retrieve legal native buffer sizes for the specificed device, in sample frames.
@param device The global index of the device about which the query is being made.
@param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@param maxBufferSizeFrames A pointer to the location which will receive the maximum buffer size value.
@param preferredBufferSizeFrames A pointer to the location which will receive the preferred buffer size value.
@param granularity A pointer to the location which will receive the "granularity". This value determines
the step size used to compute the legal values between minBufferSizeFrames and maxBufferSizeFrames.
If granularity is -1 then available buffer size values are powers of two.
@see ASIOGetBufferSize in the ASIO SDK.
@note: this function used to be called PaAsio_GetAvailableLatencyValues. There is a
#define that maps PaAsio_GetAvailableLatencyValues to this function for backwards compatibility.
*/
PaError PaAsio_GetAvailableBufferSizes( PaDeviceIndex device,
long *minBufferSizeFrames, long *maxBufferSizeFrames, long *preferredBufferSizeFrames, long *granularity );
/** Backwards compatibility alias for PaAsio_GetAvailableBufferSizes
@see PaAsio_GetAvailableBufferSizes
*/
#define PaAsio_GetAvailableLatencyValues PaAsio_GetAvailableBufferSizes
/** Display the ASIO control panel for the specified device.
@param device The global index of the device whose control panel is to be displayed.
@param systemSpecific On Windows, the calling application's main window handle,
on Macintosh this value should be zero.
*/
PaError PaAsio_ShowControlPanel( PaDeviceIndex device, void* systemSpecific );
/** Retrieve a pointer to a string containing the name of the specified
input channel. The string is valid until Pa_Terminate is called.
The string will be no longer than 32 characters including the null terminator.
*/
PaError PaAsio_GetInputChannelName( PaDeviceIndex device, int channelIndex,
const char** channelName );
/** Retrieve a pointer to a string containing the name of the specified
input channel. The string is valid until Pa_Terminate is called.
The string will be no longer than 32 characters including the null terminator.
*/
PaError PaAsio_GetOutputChannelName( PaDeviceIndex device, int channelIndex,
const char** channelName );
/** Set the sample rate of an open paASIO stream.
@param stream The stream to operate on.
@param sampleRate The new sample rate.
Note that this function may fail if the stream is alredy running and the
ASIO driver does not support switching the sample rate of a running stream.
Returns paIncompatibleStreamHostApi if stream is not a paASIO stream.
*/
PaError PaAsio_SetStreamSampleRate( PaStream* stream, double sampleRate );
#define paAsioUseChannelSelectors (0x01)
typedef struct PaAsioStreamInfo{
unsigned long size; /**< sizeof(PaAsioStreamInfo) */
PaHostApiTypeId hostApiType; /**< paASIO */
unsigned long version; /**< 1 */
unsigned long flags;
/* Support for opening only specific channels of an ASIO device.
If the paAsioUseChannelSelectors flag is set, channelSelectors is a
pointer to an array of integers specifying the device channels to use.
When used, the length of the channelSelectors array must match the
corresponding channelCount parameter to Pa_OpenStream() otherwise a
crash may result.
The values in the selectors array must specify channels within the
range of supported channels for the device or paInvalidChannelCount will
result.
*/
int *channelSelectors;
}PaAsioStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_ASIO_H */

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#ifndef PA_JACK_H
#define PA_JACK_H
/*
* $Id:
* PortAudio Portable Real-Time Audio Library
* JACK-specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief JACK-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Set the JACK client name.
*
* During Pa_Initialize, When PA JACK connects as a client of the JACK server, it requests a certain
* name, which is for instance prepended to port names. By default this name is "PortAudio". The
* JACK server may append a suffix to the client name, in order to avoid clashes among clients that
* try to connect with the same name (e.g., different PA JACK clients).
*
* This function must be called before Pa_Initialize, otherwise it won't have any effect. Note that
* the string is not copied, but instead referenced directly, so it must not be freed for as long as
* PA might need it.
* @sa PaJack_GetClientName
*/
PaError PaJack_SetClientName( const char* name );
/** Get the JACK client name used by PA JACK.
*
* The caller is responsible for freeing the returned pointer.
*/
PaError PaJack_GetClientName(const char** clientName);
#ifdef __cplusplus
}
#endif
#endif

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#ifndef PA_LINUX_ALSA_H
#define PA_LINUX_ALSA_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* ALSA-specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief ALSA-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct PaAlsaStreamInfo
{
unsigned long size;
PaHostApiTypeId hostApiType;
unsigned long version;
const char *deviceString;
}
PaAlsaStreamInfo;
/** Initialize host API specific structure, call this before setting relevant attributes. */
void PaAlsa_InitializeStreamInfo( PaAlsaStreamInfo *info );
/** Instruct whether to enable real-time priority when starting the audio thread.
*
* If this is turned on by the stream is started, the audio callback thread will be created
* with the FIFO scheduling policy, which is suitable for realtime operation.
**/
void PaAlsa_EnableRealtimeScheduling( PaStream *s, int enable );
#if 0
void PaAlsa_EnableWatchdog( PaStream *s, int enable );
#endif
/** Get the ALSA-lib card index of this stream's input device. */
PaError PaAlsa_GetStreamInputCard( PaStream *s, int *card );
/** Get the ALSA-lib card index of this stream's output device. */
PaError PaAlsa_GetStreamOutputCard( PaStream *s, int *card );
/** Set the number of periods (buffer fragments) to configure devices with.
*
* By default the number of periods is 4, this is the lowest number of periods that works well on
* the author's soundcard.
* @param numPeriods The number of periods.
*/
PaError PaAlsa_SetNumPeriods( int numPeriods );
/** Set the maximum number of times to retry opening busy device (sleeping for a
* short interval inbetween).
*/
PaError PaAlsa_SetRetriesBusy( int retries );
/** Set the path and name of ALSA library file if PortAudio is configured to load it dynamically (see
* PA_ALSA_DYNAMIC). This setting will overwrite the default name set by PA_ALSA_PATHNAME define.
* @param pathName Full path with filename. Only filename can be used, but dlopen() will lookup default
* searchable directories (/usr/lib;/usr/local/lib) then.
*/
void PaAlsa_SetLibraryPathName( const char *pathName );
#ifdef __cplusplus
}
#endif
#endif

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#ifndef PA_MAC_CORE_H
#define PA_MAC_CORE_H
/*
* PortAudio Portable Real-Time Audio Library
* Macintosh Core Audio specific extensions
* portaudio.h should be included before this file.
*
* Copyright (c) 2005-2006 Bjorn Roche
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief CoreAudio-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include <AudioUnit/AudioUnit.h>
#include <AudioToolbox/AudioToolbox.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* A pointer to a paMacCoreStreamInfo may be passed as
* the hostApiSpecificStreamInfo in the PaStreamParameters struct
* when opening a stream or querying the format. Use NULL, for the
* defaults. Note that for duplex streams, flags for input and output
* should be the same or behaviour is undefined.
*/
typedef struct
{
unsigned long size; /**size of whole structure including this header */
PaHostApiTypeId hostApiType; /**host API for which this data is intended */
unsigned long version; /**structure version */
unsigned long flags; /** flags to modify behaviour */
SInt32 const * channelMap; /** Channel map for HAL channel mapping , if not needed, use NULL;*/
unsigned long channelMapSize; /** Channel map size for HAL channel mapping , if not needed, use 0;*/
} PaMacCoreStreamInfo;
/**
* Functions
*/
/** Use this function to initialize a paMacCoreStreamInfo struct
* using the requested flags. Note that channel mapping is turned
* off after a call to this function.
* @param data The datastructure to initialize
* @param flags The flags to initialize the datastructure with.
*/
void PaMacCore_SetupStreamInfo( PaMacCoreStreamInfo *data, unsigned long flags );
/** call this after pa_SetupMacCoreStreamInfo to use channel mapping as described in notes.txt.
* @param data The stream info structure to assign a channel mapping to
* @param channelMap The channel map array, as described in notes.txt. This array pointer will be used directly (ie the underlying data will not be copied), so the caller should not free the array until after the stream has been opened.
* @param channelMapSize The size of the channel map array.
*/
void PaMacCore_SetupChannelMap( PaMacCoreStreamInfo *data, const SInt32 * const channelMap, unsigned long channelMapSize );
/**
* Retrieve the AudioDeviceID of the input device assigned to an open stream
*
* @param s The stream to query.
*
* @return A valid AudioDeviceID, or NULL if an error occurred.
*/
AudioDeviceID PaMacCore_GetStreamInputDevice( PaStream* s );
/**
* Retrieve the AudioDeviceID of the output device assigned to an open stream
*
* @param s The stream to query.
*
* @return A valid AudioDeviceID, or NULL if an error occurred.
*/
AudioDeviceID PaMacCore_GetStreamOutputDevice( PaStream* s );
/**
* Returns a statically allocated string with the device's name
* for the given channel. NULL will be returned on failure.
*
* This function's implemenation is not complete!
*
* @param device The PortAudio device index.
* @param channel The channel number who's name is requested.
* @return a statically allocated string with the name of the device.
* Because this string is statically allocated, it must be
* coppied if it is to be saved and used by the user after
* another call to this function.
*
*/
const char *PaMacCore_GetChannelName( int device, int channelIndex, bool input );
/** Retrieve the range of legal native buffer sizes for the specificed device, in sample frames.
@param device The global index of the PortAudio device about which the query is being made.
@param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@param maxBufferSizeFrames A pointer to the location which will receive the maximum buffer size value.
@see kAudioDevicePropertyBufferFrameSizeRange in the CoreAudio SDK.
*/
PaError PaMacCore_GetBufferSizeRange( PaDeviceIndex device,
long *minBufferSizeFrames, long *maxBufferSizeFrames );
/**
* Flags
*/
/**
* The following flags alter the behaviour of PA on the mac platform.
* they can be ORed together. These should work both for opening and
* checking a device.
*/
/** Allows PortAudio to change things like the device's frame size,
* which allows for much lower latency, but might disrupt the device
* if other programs are using it, even when you are just Querying
* the device. */
#define paMacCoreChangeDeviceParameters (0x01)
/** In combination with the above flag,
* causes the stream opening to fail, unless the exact sample rates
* are supported by the device. */
#define paMacCoreFailIfConversionRequired (0x02)
/** These flags set the SR conversion quality, if required. The wierd ordering
* allows Maximum Quality to be the default.*/
#define paMacCoreConversionQualityMin (0x0100)
#define paMacCoreConversionQualityMedium (0x0200)
#define paMacCoreConversionQualityLow (0x0300)
#define paMacCoreConversionQualityHigh (0x0400)
#define paMacCoreConversionQualityMax (0x0000)
/**
* Here are some "preset" combinations of flags (above) to get to some
* common configurations. THIS IS OVERKILL, but if more flags are added
* it won't be.
*/
/**This is the default setting: do as much sample rate conversion as possible
* and as little mucking with the device as possible. */
#define paMacCorePlayNice (0x00)
/**This setting is tuned for pro audio apps. It allows SR conversion on input
and output, but it tries to set the appropriate SR on the device.*/
#define paMacCorePro (0x01)
/**This is a setting to minimize CPU usage and still play nice.*/
#define paMacCoreMinimizeCPUButPlayNice (0x0100)
/**This is a setting to minimize CPU usage, even if that means interrupting the device. */
#define paMacCoreMinimizeCPU (0x0101)
#ifdef __cplusplus
}
#endif /** __cplusplus */
#endif /** PA_MAC_CORE_H */

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#ifndef PA_WIN_DS_H
#define PA_WIN_DS_H
/*
* $Id: $
* PortAudio Portable Real-Time Audio Library
* DirectSound specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief DirectSound-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#define paWinDirectSoundUseLowLevelLatencyParameters (0x01)
#define paWinDirectSoundUseChannelMask (0x04)
typedef struct PaWinDirectSoundStreamInfo{
unsigned long size; /**< sizeof(PaWinDirectSoundStreamInfo) */
PaHostApiTypeId hostApiType; /**< paDirectSound */
unsigned long version; /**< 2 */
unsigned long flags; /**< enable other features of this struct */
/**
low-level latency setting support
Sets the size of the DirectSound host buffer.
When flags contains the paWinDirectSoundUseLowLevelLatencyParameters
this size will be used instead of interpreting the generic latency
parameters to Pa_OpenStream(). If the flag is not set this value is ignored.
If the stream is a full duplex stream the implementation requires that
the values of framesPerBuffer for input and output match (if both are specified).
*/
unsigned long framesPerBuffer;
/**
support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinDirectSoundUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h
*/
PaWinWaveFormatChannelMask channelMask;
}PaWinDirectSoundStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_DS_H */

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#ifndef PA_WIN_WASAPI_H
#define PA_WIN_WASAPI_H
/*
* $Id: $
* PortAudio Portable Real-Time Audio Library
* DirectSound specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WASAPI-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/* Setup flags */
typedef enum PaWasapiFlags
{
/* puts WASAPI into exclusive mode */
paWinWasapiExclusive = (1 << 0),
/* allows to skip internal PA processing completely */
paWinWasapiRedirectHostProcessor = (1 << 1),
/* assigns custom channel mask */
paWinWasapiUseChannelMask = (1 << 2),
/* selects non-Event driven method of data read/write
Note: WASAPI Event driven core is capable of 2ms latency!!!, but Polling
method can only provide 15-20ms latency. */
paWinWasapiPolling = (1 << 3),
/* forces custom thread priority setting, must be used if PaWasapiStreamInfo::threadPriority
is set to a custom value */
paWinWasapiThreadPriority = (1 << 4)
}
PaWasapiFlags;
#define paWinWasapiExclusive (paWinWasapiExclusive)
#define paWinWasapiRedirectHostProcessor (paWinWasapiRedirectHostProcessor)
#define paWinWasapiUseChannelMask (paWinWasapiUseChannelMask)
#define paWinWasapiPolling (paWinWasapiPolling)
#define paWinWasapiThreadPriority (paWinWasapiThreadPriority)
/* Host processor. Allows to skip internal PA processing completely.
You must set paWinWasapiRedirectHostProcessor flag to PaWasapiStreamInfo::flags member
in order to have host processor redirected to your callback.
Use with caution! inputFrames and outputFrames depend solely on final device setup.
To query maximal values of inputFrames/outputFrames use PaWasapi_GetFramesPerHostBuffer.
*/
typedef void (*PaWasapiHostProcessorCallback) (void *inputBuffer, long inputFrames,
void *outputBuffer, long outputFrames,
void *userData);
/* Device role. */
typedef enum PaWasapiDeviceRole
{
eRoleRemoteNetworkDevice = 0,
eRoleSpeakers,
eRoleLineLevel,
eRoleHeadphones,
eRoleMicrophone,
eRoleHeadset,
eRoleHandset,
eRoleUnknownDigitalPassthrough,
eRoleSPDIF,
eRoleHDMI,
eRoleUnknownFormFactor
}
PaWasapiDeviceRole;
/* Jack connection type. */
typedef enum PaWasapiJackConnectionType
{
eJackConnTypeUnknown,
eJackConnType3Point5mm,
eJackConnTypeQuarter,
eJackConnTypeAtapiInternal,
eJackConnTypeRCA,
eJackConnTypeOptical,
eJackConnTypeOtherDigital,
eJackConnTypeOtherAnalog,
eJackConnTypeMultichannelAnalogDIN,
eJackConnTypeXlrProfessional,
eJackConnTypeRJ11Modem,
eJackConnTypeCombination
}
PaWasapiJackConnectionType;
/* Jack geometric location. */
typedef enum PaWasapiJackGeoLocation
{
eJackGeoLocUnk = 0,
eJackGeoLocRear = 0x1, /* matches EPcxGeoLocation::eGeoLocRear */
eJackGeoLocFront,
eJackGeoLocLeft,
eJackGeoLocRight,
eJackGeoLocTop,
eJackGeoLocBottom,
eJackGeoLocRearPanel,
eJackGeoLocRiser,
eJackGeoLocInsideMobileLid,
eJackGeoLocDrivebay,
eJackGeoLocHDMI,
eJackGeoLocOutsideMobileLid,
eJackGeoLocATAPI,
eJackGeoLocReserved5,
eJackGeoLocReserved6,
}
PaWasapiJackGeoLocation;
/* Jack general location. */
typedef enum PaWasapiJackGenLocation
{
eJackGenLocPrimaryBox = 0,
eJackGenLocInternal,
eJackGenLocSeparate,
eJackGenLocOther
}
PaWasapiJackGenLocation;
/* Jack's type of port. */
typedef enum PaWasapiJackPortConnection
{
eJackPortConnJack = 0,
eJackPortConnIntegratedDevice,
eJackPortConnBothIntegratedAndJack,
eJackPortConnUnknown
}
PaWasapiJackPortConnection;
/* Thread priority. */
typedef enum PaWasapiThreadPriority
{
eThreadPriorityNone = 0,
eThreadPriorityAudio, //!< Default for Shared mode.
eThreadPriorityCapture,
eThreadPriorityDistribution,
eThreadPriorityGames,
eThreadPriorityPlayback,
eThreadPriorityProAudio, //!< Default for Exclusive mode.
eThreadPriorityWindowManager
}
PaWasapiThreadPriority;
/* Stream descriptor. */
typedef struct PaWasapiJackDescription
{
unsigned long channelMapping;
unsigned long color; /* derived from macro: #define RGB(r,g,b) ((COLORREF)(((BYTE)(r)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(b))<<16))) */
PaWasapiJackConnectionType connectionType;
PaWasapiJackGeoLocation geoLocation;
PaWasapiJackGenLocation genLocation;
PaWasapiJackPortConnection portConnection;
unsigned int isConnected;
}
PaWasapiJackDescription;
/** Stream category.
Note:
- values are equal to WASAPI AUDIO_STREAM_CATEGORY enum
- supported since Windows 8.0, noop on earler versions
- values 1,2 are deprecated on Windows 10 and not included into enumeration
@version Available as of 19.6.0
*/
typedef enum PaWasapiStreamCategory
{
eAudioCategoryOther = 0,
eAudioCategoryCommunications = 3,
eAudioCategoryAlerts = 4,
eAudioCategorySoundEffects = 5,
eAudioCategoryGameEffects = 6,
eAudioCategoryGameMedia = 7,
eAudioCategoryGameChat = 8,
eAudioCategorySpeech = 9,
eAudioCategoryMovie = 10,
eAudioCategoryMedia = 11
}
PaWasapiStreamCategory;
/** Stream option.
Note:
- values are equal to WASAPI AUDCLNT_STREAMOPTIONS enum
- supported since Windows 8.1, noop on earler versions
@version Available as of 19.6.0
*/
typedef enum PaWasapiStreamOption
{
eStreamOptionNone = 0, //!< default
eStreamOptionRaw = 1, //!< bypass WASAPI Audio Engine DSP effects, supported since Windows 8.1
eStreamOptionMatchFormat = 2 //!< force WASAPI Audio Engine into a stream format, supported since Windows 10
}
PaWasapiStreamOption;
/* Stream descriptor. */
typedef struct PaWasapiStreamInfo
{
unsigned long size; /**< sizeof(PaWasapiStreamInfo) */
PaHostApiTypeId hostApiType; /**< paWASAPI */
unsigned long version; /**< 1 */
unsigned long flags; /**< collection of PaWasapiFlags */
/** Support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinWasapiUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h. Will be used only if
paWinWasapiUseChannelMask flag is specified.
*/
PaWinWaveFormatChannelMask channelMask;
/** Delivers raw data to callback obtained from GetBuffer() methods skipping
internal PortAudio processing inventory completely. userData parameter will
be the same that was passed to Pa_OpenStream method. Will be used only if
paWinWasapiRedirectHostProcessor flag is specified.
*/
PaWasapiHostProcessorCallback hostProcessorOutput;
PaWasapiHostProcessorCallback hostProcessorInput;
/** Specifies thread priority explicitly. Will be used only if paWinWasapiThreadPriority flag
is specified.
Please note, if Input/Output streams are opened simultaniously (Full-Duplex mode)
you shall specify same value for threadPriority or othervise one of the values will be used
to setup thread priority.
*/
PaWasapiThreadPriority threadPriority;
/** Stream category.
@see PaWasapiStreamCategory
@version Available as of 19.6.0
*/
PaWasapiStreamCategory streamCategory;
/** Stream option.
@see PaWasapiStreamOption
@version Available as of 19.6.0
*/
PaWasapiStreamOption streamOption;
}
PaWasapiStreamInfo;
/** Returns default sound format for device. Format is represented by PaWinWaveFormat or
WAVEFORMATEXTENSIBLE structure.
@param pFormat Pointer to PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure.
@param nFormatSize Size of PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure in bytes.
@param nDevice Device index.
@return Non-negative value indicating the number of bytes copied into format decriptor
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
*/
int PaWasapi_GetDeviceDefaultFormat( void *pFormat, unsigned int nFormatSize, PaDeviceIndex nDevice );
/** Returns device role (PaWasapiDeviceRole enum).
@param nDevice device index.
@return Non-negative value indicating device role or, a PaErrorCode (which are always negative)
if PortAudio is not initialized or an error is encountered.
*/
int/*PaWasapiDeviceRole*/ PaWasapi_GetDeviceRole( PaDeviceIndex nDevice );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.
@param hTask Handle to pointer to priority task. Must be used with PaWasapi_RevertThreadPriority
method to revert thread priority to initial state.
@param nPriorityClass Id of thread priority of PaWasapiThreadPriority type. Specifying
eThreadPriorityNone does nothing.
@return Error code indicating success or failure.
@see PaWasapi_RevertThreadPriority
*/
PaError PaWasapi_ThreadPriorityBoost( void **hTask, PaWasapiThreadPriority nPriorityClass );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.
@param hTask Task handle obtained by PaWasapi_BoostThreadPriority method.
@return Error code indicating success or failure.
@see PaWasapi_BoostThreadPriority
*/
PaError PaWasapi_ThreadPriorityRevert( void *hTask );
/** Get number of frames per host buffer. This is maximal value of frames of WASAPI buffer which
can be locked for operations. Use this method as helper to findout maximal values of
inputFrames/outputFrames of PaWasapiHostProcessorCallback.
@param pStream Pointer to PaStream to query.
@param nInput Pointer to variable to receive number of input frames. Can be NULL.
@param nOutput Pointer to variable to receive number of output frames. Can be NULL.
@return Error code indicating success or failure.
@see PaWasapiHostProcessorCallback
*/
PaError PaWasapi_GetFramesPerHostBuffer( PaStream *pStream, unsigned int *nInput, unsigned int *nOutput );
/** Get number of jacks associated with a WASAPI device. Use this method to determine if
there are any jacks associated with the provided WASAPI device. Not all audio devices
will support this capability. This is valid for both input and output devices.
@param nDevice device index.
@param jcount Number of jacks is returned in this variable
@return Error code indicating success or failure
@see PaWasapi_GetJackDescription
*/
PaError PaWasapi_GetJackCount(PaDeviceIndex nDevice, int *jcount);
/** Get the jack description associated with a WASAPI device and jack number
Before this function is called, use PaWasapi_GetJackCount to determine the
number of jacks associated with device. If jcount is greater than zero, then
each jack from 0 to jcount can be queried with this function to get the jack
description.
@param nDevice device index.
@param jindex Which jack to return information
@param KSJACK_DESCRIPTION This structure filled in on success.
@return Error code indicating success or failure
@see PaWasapi_GetJackCount
*/
PaError PaWasapi_GetJackDescription(PaDeviceIndex nDevice, int jindex, PaWasapiJackDescription *pJackDescription);
/*
IMPORTANT:
WASAPI is implemented for Callback and Blocking interfaces. It supports Shared and Exclusive
share modes.
Exclusive Mode:
Exclusive mode allows to deliver audio data directly to hardware bypassing
software mixing.
Exclusive mode is specified by 'paWinWasapiExclusive' flag.
Callback Interface:
Provides best audio quality with low latency. Callback interface is implemented in
two versions:
1) Event-Driven:
This is the most powerful WASAPI implementation which provides glitch-free
audio at around 3ms latency in Exclusive mode. Lowest possible latency for this mode is
3 ms for HD Audio class audio chips. For the Shared mode latency can not be
lower than 20 ms.
2) Poll-Driven:
Polling is another 2-nd method to operate with WASAPI. It is less efficient than Event-Driven
and provides latency at around 10-13ms. Polling must be used to overcome a system bug
under Windows Vista x64 when application is WOW64(32-bit) and Event-Driven method simply
times out (event handle is never signalled on buffer completion). Please note, such WOW64 bug
does not exist in Vista x86 or Windows 7.
Polling can be setup by speciying 'paWinWasapiPolling' flag. Our WASAPI implementation detects
WOW64 bug and sets 'paWinWasapiPolling' automatically.
Thread priority:
Normally thread priority is set automatically and does not require modification. Although
if user wants some tweaking thread priority can be modified by setting 'paWinWasapiThreadPriority'
flag and specifying 'PaWasapiStreamInfo::threadPriority' with value from PaWasapiThreadPriority
enum.
Blocking Interface:
Blocking interface is implemented but due to above described Poll-Driven method can not
deliver lowest possible latency. Specifying too low latency in Shared mode will result in
distorted audio although Exclusive mode adds stability.
Pa_IsFormatSupported:
To check format with correct Share Mode (Exclusive/Shared) you must supply
PaWasapiStreamInfo with flags paWinWasapiExclusive set through member of
PaStreamParameters::hostApiSpecificStreamInfo structure.
Pa_OpenStream:
To set desired Share Mode (Exclusive/Shared) you must supply
PaWasapiStreamInfo with flags paWinWasapiExclusive set through member of
PaStreamParameters::hostApiSpecificStreamInfo structure.
*/
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WASAPI_H */

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#ifndef PA_WIN_WAVEFORMAT_H
#define PA_WIN_WAVEFORMAT_H
/*
* PortAudio Portable Real-Time Audio Library
* Windows WAVEFORMAT* data structure utilities
* portaudio.h should be included before this file.
*
* Copyright (c) 2007 Ross Bencina
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief Windows specific PortAudio API extension and utilities header file.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
The following #defines for speaker channel masks are the same
as those in ksmedia.h, except with PAWIN_ prepended, KSAUDIO_ removed
in some cases, and casts to PaWinWaveFormatChannelMask added.
*/
typedef unsigned long PaWinWaveFormatChannelMask;
/* Speaker Positions: */
#define PAWIN_SPEAKER_FRONT_LEFT ((PaWinWaveFormatChannelMask)0x1)
#define PAWIN_SPEAKER_FRONT_RIGHT ((PaWinWaveFormatChannelMask)0x2)
#define PAWIN_SPEAKER_FRONT_CENTER ((PaWinWaveFormatChannelMask)0x4)
#define PAWIN_SPEAKER_LOW_FREQUENCY ((PaWinWaveFormatChannelMask)0x8)
#define PAWIN_SPEAKER_BACK_LEFT ((PaWinWaveFormatChannelMask)0x10)
#define PAWIN_SPEAKER_BACK_RIGHT ((PaWinWaveFormatChannelMask)0x20)
#define PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER ((PaWinWaveFormatChannelMask)0x40)
#define PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER ((PaWinWaveFormatChannelMask)0x80)
#define PAWIN_SPEAKER_BACK_CENTER ((PaWinWaveFormatChannelMask)0x100)
#define PAWIN_SPEAKER_SIDE_LEFT ((PaWinWaveFormatChannelMask)0x200)
#define PAWIN_SPEAKER_SIDE_RIGHT ((PaWinWaveFormatChannelMask)0x400)
#define PAWIN_SPEAKER_TOP_CENTER ((PaWinWaveFormatChannelMask)0x800)
#define PAWIN_SPEAKER_TOP_FRONT_LEFT ((PaWinWaveFormatChannelMask)0x1000)
#define PAWIN_SPEAKER_TOP_FRONT_CENTER ((PaWinWaveFormatChannelMask)0x2000)
#define PAWIN_SPEAKER_TOP_FRONT_RIGHT ((PaWinWaveFormatChannelMask)0x4000)
#define PAWIN_SPEAKER_TOP_BACK_LEFT ((PaWinWaveFormatChannelMask)0x8000)
#define PAWIN_SPEAKER_TOP_BACK_CENTER ((PaWinWaveFormatChannelMask)0x10000)
#define PAWIN_SPEAKER_TOP_BACK_RIGHT ((PaWinWaveFormatChannelMask)0x20000)
/* Bit mask locations reserved for future use */
#define PAWIN_SPEAKER_RESERVED ((PaWinWaveFormatChannelMask)0x7FFC0000)
/* Used to specify that any possible permutation of speaker configurations */
#define PAWIN_SPEAKER_ALL ((PaWinWaveFormatChannelMask)0x80000000)
/* DirectSound Speaker Config */
#define PAWIN_SPEAKER_DIRECTOUT 0
#define PAWIN_SPEAKER_MONO (PAWIN_SPEAKER_FRONT_CENTER)
#define PAWIN_SPEAKER_STEREO (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT)
#define PAWIN_SPEAKER_QUAD (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT)
#define PAWIN_SPEAKER_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_BACK_CENTER)
#define PAWIN_SPEAKER_5POINT1 (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT)
#define PAWIN_SPEAKER_7POINT1 (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER | PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER)
#define PAWIN_SPEAKER_5POINT1_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_SIDE_LEFT | PAWIN_SPEAKER_SIDE_RIGHT)
#define PAWIN_SPEAKER_7POINT1_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
PAWIN_SPEAKER_SIDE_LEFT | PAWIN_SPEAKER_SIDE_RIGHT)
/*
According to the Microsoft documentation:
The following are obsolete 5.1 and 7.1 settings (they lack side speakers). Note this means
that the default 5.1 and 7.1 settings (KSAUDIO_SPEAKER_5POINT1 and KSAUDIO_SPEAKER_7POINT1 are
similarly obsolete but are unchanged for compatibility reasons).
*/
#define PAWIN_SPEAKER_5POINT1_BACK PAWIN_SPEAKER_5POINT1
#define PAWIN_SPEAKER_7POINT1_WIDE PAWIN_SPEAKER_7POINT1
/* DVD Speaker Positions */
#define PAWIN_SPEAKER_GROUND_FRONT_LEFT PAWIN_SPEAKER_FRONT_LEFT
#define PAWIN_SPEAKER_GROUND_FRONT_CENTER PAWIN_SPEAKER_FRONT_CENTER
#define PAWIN_SPEAKER_GROUND_FRONT_RIGHT PAWIN_SPEAKER_FRONT_RIGHT
#define PAWIN_SPEAKER_GROUND_REAR_LEFT PAWIN_SPEAKER_BACK_LEFT
#define PAWIN_SPEAKER_GROUND_REAR_RIGHT PAWIN_SPEAKER_BACK_RIGHT
#define PAWIN_SPEAKER_TOP_MIDDLE PAWIN_SPEAKER_TOP_CENTER
#define PAWIN_SPEAKER_SUPER_WOOFER PAWIN_SPEAKER_LOW_FREQUENCY
/*
PaWinWaveFormat is defined here to provide compatibility with
compilation environments which don't have headers defining
WAVEFORMATEXTENSIBLE (e.g. older versions of MSVC, Borland C++ etc.
The fields for WAVEFORMATEX and WAVEFORMATEXTENSIBLE are declared as an
unsigned char array here to avoid clients who include this file having
a dependency on windows.h and mmsystem.h, and also to to avoid having
to write separate packing pragmas for each compiler.
*/
#define PAWIN_SIZEOF_WAVEFORMATEX 18
#define PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE (PAWIN_SIZEOF_WAVEFORMATEX + 22)
typedef struct{
unsigned char fields[ PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE ];
unsigned long extraLongForAlignment; /* ensure that compiler aligns struct to DWORD */
} PaWinWaveFormat;
/*
WAVEFORMATEXTENSIBLE fields:
union {
WORD wValidBitsPerSample;
WORD wSamplesPerBlock;
WORD wReserved;
} Samples;
DWORD dwChannelMask;
GUID SubFormat;
*/
#define PAWIN_INDEXOF_WVALIDBITSPERSAMPLE (PAWIN_SIZEOF_WAVEFORMATEX+0)
#define PAWIN_INDEXOF_DWCHANNELMASK (PAWIN_SIZEOF_WAVEFORMATEX+2)
#define PAWIN_INDEXOF_SUBFORMAT (PAWIN_SIZEOF_WAVEFORMATEX+6)
/*
Valid values to pass for the waveFormatTag PaWin_InitializeWaveFormatEx and
PaWin_InitializeWaveFormatExtensible functions below. These must match
the standard Windows WAVE_FORMAT_* values.
*/
#define PAWIN_WAVE_FORMAT_PCM (1)
#define PAWIN_WAVE_FORMAT_IEEE_FLOAT (3)
#define PAWIN_WAVE_FORMAT_DOLBY_AC3_SPDIF (0x0092)
#define PAWIN_WAVE_FORMAT_WMA_SPDIF (0x0164)
/*
returns PAWIN_WAVE_FORMAT_PCM or PAWIN_WAVE_FORMAT_IEEE_FLOAT
depending on the sampleFormat parameter.
*/
int PaWin_SampleFormatToLinearWaveFormatTag( PaSampleFormat sampleFormat );
/*
Use the following two functions to initialize the waveformat structure.
*/
void PaWin_InitializeWaveFormatEx( PaWinWaveFormat *waveFormat,
int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate );
void PaWin_InitializeWaveFormatExtensible( PaWinWaveFormat *waveFormat,
int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate,
PaWinWaveFormatChannelMask channelMask );
/* Map a channel count to a speaker channel mask */
PaWinWaveFormatChannelMask PaWin_DefaultChannelMask( int numChannels );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WAVEFORMAT_H */

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#ifndef PA_WIN_WDMKS_H
#define PA_WIN_WDMKS_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* WDM/KS specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WDM Kernel Streaming-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include <windows.h>
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/** Flags to indicate valid fields in PaWinWDMKSInfo.
@see PaWinWDMKSInfo
@version Available as of 19.5.0.
*/
typedef enum PaWinWDMKSFlags
{
/** Makes WDMKS use the supplied latency figures instead of relying on the frame size reported
by the WaveCyclic device. Use at own risk!
*/
paWinWDMKSOverrideFramesize = (1 << 0),
/** Makes WDMKS (output stream) use the given channelMask instead of the default.
@version Available as of 19.5.0.
*/
paWinWDMKSUseGivenChannelMask = (1 << 1),
} PaWinWDMKSFlags;
typedef struct PaWinWDMKSInfo{
unsigned long size; /**< sizeof(PaWinWDMKSInfo) */
PaHostApiTypeId hostApiType; /**< paWDMKS */
unsigned long version; /**< 1 */
/** Flags indicate which fields are valid.
@see PaWinWDMKSFlags
@version Available as of 19.5.0.
*/
unsigned long flags;
/** The number of packets to use for WaveCyclic devices, range is [2, 8]. Set to zero for default value of 2. */
unsigned noOfPackets;
/** If paWinWDMKSUseGivenChannelMask bit is set in flags, use this as channelMask instead of default.
@see PaWinWDMKSFlags
@version Available as of 19.5.0.
*/
unsigned channelMask;
} PaWinWDMKSInfo;
typedef enum PaWDMKSType
{
Type_kNotUsed,
Type_kWaveCyclic,
Type_kWaveRT,
Type_kCnt,
} PaWDMKSType;
typedef enum PaWDMKSSubType
{
SubType_kUnknown,
SubType_kNotification,
SubType_kPolled,
SubType_kCnt,
} PaWDMKSSubType;
typedef struct PaWinWDMKSDeviceInfo {
wchar_t filterPath[MAX_PATH]; /**< KS filter path in Unicode! */
wchar_t topologyPath[MAX_PATH]; /**< Topology filter path in Unicode! */
PaWDMKSType streamingType;
GUID deviceProductGuid; /**< The product GUID of the device (if supported) */
} PaWinWDMKSDeviceInfo;
typedef struct PaWDMKSDirectionSpecificStreamInfo
{
PaDeviceIndex device;
unsigned channels; /**< No of channels the device is opened with */
unsigned framesPerHostBuffer; /**< No of frames of the device buffer */
int endpointPinId; /**< Endpoint pin ID (on topology filter if topologyName is not empty) */
int muxNodeId; /**< Only valid for input */
PaWDMKSSubType streamingSubType; /**< Not known until device is opened for streaming */
} PaWDMKSDirectionSpecificStreamInfo;
typedef struct PaWDMKSSpecificStreamInfo {
PaWDMKSDirectionSpecificStreamInfo input;
PaWDMKSDirectionSpecificStreamInfo output;
} PaWDMKSSpecificStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_DS_H */

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#ifndef PA_WIN_WMME_H
#define PA_WIN_WMME_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* MME specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WMME-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/* The following are flags which can be set in
PaWinMmeStreamInfo's flags field.
*/
#define paWinMmeUseLowLevelLatencyParameters (0x01)
#define paWinMmeUseMultipleDevices (0x02) /* use mme specific multiple device feature */
#define paWinMmeUseChannelMask (0x04)
/* By default, the mme implementation drops the processing thread's priority
to THREAD_PRIORITY_NORMAL and sleeps the thread if the CPU load exceeds 100%
This flag disables any priority throttling. The processing thread will always
run at THREAD_PRIORITY_TIME_CRITICAL.
*/
#define paWinMmeDontThrottleOverloadedProcessingThread (0x08)
/* Flags for non-PCM spdif passthrough.
*/
#define paWinMmeWaveFormatDolbyAc3Spdif (0x10)
#define paWinMmeWaveFormatWmaSpdif (0x20)
typedef struct PaWinMmeDeviceAndChannelCount{
PaDeviceIndex device;
int channelCount;
}PaWinMmeDeviceAndChannelCount;
typedef struct PaWinMmeStreamInfo{
unsigned long size; /**< sizeof(PaWinMmeStreamInfo) */
PaHostApiTypeId hostApiType; /**< paMME */
unsigned long version; /**< 1 */
unsigned long flags;
/* low-level latency setting support
These settings control the number and size of host buffers in order
to set latency. They will be used instead of the generic parameters
to Pa_OpenStream() if flags contains the PaWinMmeUseLowLevelLatencyParameters
flag.
If PaWinMmeStreamInfo structures with PaWinMmeUseLowLevelLatencyParameters
are supplied for both input and output in a full duplex stream, then the
input and output framesPerBuffer must be the same, or the larger of the
two must be a multiple of the smaller, otherwise a
paIncompatibleHostApiSpecificStreamInfo error will be returned from
Pa_OpenStream().
*/
unsigned long framesPerBuffer;
unsigned long bufferCount; /* formerly numBuffers */
/* multiple devices per direction support
If flags contains the PaWinMmeUseMultipleDevices flag,
this functionality will be used, otherwise the device parameter to
Pa_OpenStream() will be used instead.
If devices are specified here, the corresponding device parameter
to Pa_OpenStream() should be set to paUseHostApiSpecificDeviceSpecification,
otherwise an paInvalidDevice error will result.
The total number of channels accross all specified devices
must agree with the corresponding channelCount parameter to
Pa_OpenStream() otherwise a paInvalidChannelCount error will result.
*/
PaWinMmeDeviceAndChannelCount *devices;
unsigned long deviceCount;
/*
support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinMmeUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h
*/
PaWinWaveFormatChannelMask channelMask;
}PaWinMmeStreamInfo;
/** Retrieve the number of wave in handles used by a PortAudio WinMME stream.
Returns zero if the stream is output only.
@return A non-negative value indicating the number of wave in handles
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
@see PaWinMME_GetStreamInputHandle
*/
int PaWinMME_GetStreamInputHandleCount( PaStream* stream );
/** Retrieve a wave in handle used by a PortAudio WinMME stream.
@param stream The stream to query.
@param handleIndex The zero based index of the wave in handle to retrieve. This
should be in the range [0, PaWinMME_GetStreamInputHandleCount(stream)-1].
@return A valid wave in handle, or NULL if an error occurred.
@see PaWinMME_GetStreamInputHandle
*/
HWAVEIN PaWinMME_GetStreamInputHandle( PaStream* stream, int handleIndex );
/** Retrieve the number of wave out handles used by a PortAudio WinMME stream.
Returns zero if the stream is input only.
@return A non-negative value indicating the number of wave out handles
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
@see PaWinMME_GetStreamOutputHandle
*/
int PaWinMME_GetStreamOutputHandleCount( PaStream* stream );
/** Retrieve a wave out handle used by a PortAudio WinMME stream.
@param stream The stream to query.
@param handleIndex The zero based index of the wave out handle to retrieve.
This should be in the range [0, PaWinMME_GetStreamOutputHandleCount(stream)-1].
@return A valid wave out handle, or NULL if an error occurred.
@see PaWinMME_GetStreamOutputHandleCount
*/
HWAVEOUT PaWinMME_GetStreamOutputHandle( PaStream* stream, int handleIndex );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WMME_H */

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#ifndef PA_ASIO_H
#define PA_ASIO_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* ASIO specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief ASIO-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/** Retrieve legal native buffer sizes for the specificed device, in sample frames.
@param device The global index of the device about which the query is being made.
@param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@param maxBufferSizeFrames A pointer to the location which will receive the maximum buffer size value.
@param preferredBufferSizeFrames A pointer to the location which will receive the preferred buffer size value.
@param granularity A pointer to the location which will receive the "granularity". This value determines
the step size used to compute the legal values between minBufferSizeFrames and maxBufferSizeFrames.
If granularity is -1 then available buffer size values are powers of two.
@see ASIOGetBufferSize in the ASIO SDK.
@note: this function used to be called PaAsio_GetAvailableLatencyValues. There is a
#define that maps PaAsio_GetAvailableLatencyValues to this function for backwards compatibility.
*/
PaError PaAsio_GetAvailableBufferSizes( PaDeviceIndex device,
long *minBufferSizeFrames, long *maxBufferSizeFrames, long *preferredBufferSizeFrames, long *granularity );
/** Backwards compatibility alias for PaAsio_GetAvailableBufferSizes
@see PaAsio_GetAvailableBufferSizes
*/
#define PaAsio_GetAvailableLatencyValues PaAsio_GetAvailableBufferSizes
/** Display the ASIO control panel for the specified device.
@param device The global index of the device whose control panel is to be displayed.
@param systemSpecific On Windows, the calling application's main window handle,
on Macintosh this value should be zero.
*/
PaError PaAsio_ShowControlPanel( PaDeviceIndex device, void* systemSpecific );
/** Retrieve a pointer to a string containing the name of the specified
input channel. The string is valid until Pa_Terminate is called.
The string will be no longer than 32 characters including the null terminator.
*/
PaError PaAsio_GetInputChannelName( PaDeviceIndex device, int channelIndex,
const char** channelName );
/** Retrieve a pointer to a string containing the name of the specified
input channel. The string is valid until Pa_Terminate is called.
The string will be no longer than 32 characters including the null terminator.
*/
PaError PaAsio_GetOutputChannelName( PaDeviceIndex device, int channelIndex,
const char** channelName );
/** Set the sample rate of an open paASIO stream.
@param stream The stream to operate on.
@param sampleRate The new sample rate.
Note that this function may fail if the stream is alredy running and the
ASIO driver does not support switching the sample rate of a running stream.
Returns paIncompatibleStreamHostApi if stream is not a paASIO stream.
*/
PaError PaAsio_SetStreamSampleRate( PaStream* stream, double sampleRate );
#define paAsioUseChannelSelectors (0x01)
typedef struct PaAsioStreamInfo{
unsigned long size; /**< sizeof(PaAsioStreamInfo) */
PaHostApiTypeId hostApiType; /**< paASIO */
unsigned long version; /**< 1 */
unsigned long flags;
/* Support for opening only specific channels of an ASIO device.
If the paAsioUseChannelSelectors flag is set, channelSelectors is a
pointer to an array of integers specifying the device channels to use.
When used, the length of the channelSelectors array must match the
corresponding channelCount parameter to Pa_OpenStream() otherwise a
crash may result.
The values in the selectors array must specify channels within the
range of supported channels for the device or paInvalidChannelCount will
result.
*/
int *channelSelectors;
}PaAsioStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_ASIO_H */

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#ifndef PA_JACK_H
#define PA_JACK_H
/*
* $Id:
* PortAudio Portable Real-Time Audio Library
* JACK-specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief JACK-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Set the JACK client name.
*
* During Pa_Initialize, When PA JACK connects as a client of the JACK server, it requests a certain
* name, which is for instance prepended to port names. By default this name is "PortAudio". The
* JACK server may append a suffix to the client name, in order to avoid clashes among clients that
* try to connect with the same name (e.g., different PA JACK clients).
*
* This function must be called before Pa_Initialize, otherwise it won't have any effect. Note that
* the string is not copied, but instead referenced directly, so it must not be freed for as long as
* PA might need it.
* @sa PaJack_GetClientName
*/
PaError PaJack_SetClientName( const char* name );
/** Get the JACK client name used by PA JACK.
*
* The caller is responsible for freeing the returned pointer.
*/
PaError PaJack_GetClientName(const char** clientName);
#ifdef __cplusplus
}
#endif
#endif

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#ifndef PA_LINUX_ALSA_H
#define PA_LINUX_ALSA_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* ALSA-specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief ALSA-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct PaAlsaStreamInfo
{
unsigned long size;
PaHostApiTypeId hostApiType;
unsigned long version;
const char *deviceString;
}
PaAlsaStreamInfo;
/** Initialize host API specific structure, call this before setting relevant attributes. */
void PaAlsa_InitializeStreamInfo( PaAlsaStreamInfo *info );
/** Instruct whether to enable real-time priority when starting the audio thread.
*
* If this is turned on by the stream is started, the audio callback thread will be created
* with the FIFO scheduling policy, which is suitable for realtime operation.
**/
void PaAlsa_EnableRealtimeScheduling( PaStream *s, int enable );
#if 0
void PaAlsa_EnableWatchdog( PaStream *s, int enable );
#endif
/** Get the ALSA-lib card index of this stream's input device. */
PaError PaAlsa_GetStreamInputCard( PaStream *s, int *card );
/** Get the ALSA-lib card index of this stream's output device. */
PaError PaAlsa_GetStreamOutputCard( PaStream *s, int *card );
/** Set the number of periods (buffer fragments) to configure devices with.
*
* By default the number of periods is 4, this is the lowest number of periods that works well on
* the author's soundcard.
* @param numPeriods The number of periods.
*/
PaError PaAlsa_SetNumPeriods( int numPeriods );
/** Set the maximum number of times to retry opening busy device (sleeping for a
* short interval inbetween).
*/
PaError PaAlsa_SetRetriesBusy( int retries );
/** Set the path and name of ALSA library file if PortAudio is configured to load it dynamically (see
* PA_ALSA_DYNAMIC). This setting will overwrite the default name set by PA_ALSA_PATHNAME define.
* @param pathName Full path with filename. Only filename can be used, but dlopen() will lookup default
* searchable directories (/usr/lib;/usr/local/lib) then.
*/
void PaAlsa_SetLibraryPathName( const char *pathName );
#ifdef __cplusplus
}
#endif
#endif

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#ifndef PA_MAC_CORE_H
#define PA_MAC_CORE_H
/*
* PortAudio Portable Real-Time Audio Library
* Macintosh Core Audio specific extensions
* portaudio.h should be included before this file.
*
* Copyright (c) 2005-2006 Bjorn Roche
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
* @ingroup public_header
* @brief CoreAudio-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include <AudioUnit/AudioUnit.h>
#include <AudioToolbox/AudioToolbox.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* A pointer to a paMacCoreStreamInfo may be passed as
* the hostApiSpecificStreamInfo in the PaStreamParameters struct
* when opening a stream or querying the format. Use NULL, for the
* defaults. Note that for duplex streams, flags for input and output
* should be the same or behaviour is undefined.
*/
typedef struct
{
unsigned long size; /**size of whole structure including this header */
PaHostApiTypeId hostApiType; /**host API for which this data is intended */
unsigned long version; /**structure version */
unsigned long flags; /** flags to modify behaviour */
SInt32 const * channelMap; /** Channel map for HAL channel mapping , if not needed, use NULL;*/
unsigned long channelMapSize; /** Channel map size for HAL channel mapping , if not needed, use 0;*/
} PaMacCoreStreamInfo;
/**
* Functions
*/
/** Use this function to initialize a paMacCoreStreamInfo struct
* using the requested flags. Note that channel mapping is turned
* off after a call to this function.
* @param data The datastructure to initialize
* @param flags The flags to initialize the datastructure with.
*/
void PaMacCore_SetupStreamInfo( PaMacCoreStreamInfo *data, unsigned long flags );
/** call this after pa_SetupMacCoreStreamInfo to use channel mapping as described in notes.txt.
* @param data The stream info structure to assign a channel mapping to
* @param channelMap The channel map array, as described in notes.txt. This array pointer will be used directly (ie the underlying data will not be copied), so the caller should not free the array until after the stream has been opened.
* @param channelMapSize The size of the channel map array.
*/
void PaMacCore_SetupChannelMap( PaMacCoreStreamInfo *data, const SInt32 * const channelMap, unsigned long channelMapSize );
/**
* Retrieve the AudioDeviceID of the input device assigned to an open stream
*
* @param s The stream to query.
*
* @return A valid AudioDeviceID, or NULL if an error occurred.
*/
AudioDeviceID PaMacCore_GetStreamInputDevice( PaStream* s );
/**
* Retrieve the AudioDeviceID of the output device assigned to an open stream
*
* @param s The stream to query.
*
* @return A valid AudioDeviceID, or NULL if an error occurred.
*/
AudioDeviceID PaMacCore_GetStreamOutputDevice( PaStream* s );
/**
* Returns a statically allocated string with the device's name
* for the given channel. NULL will be returned on failure.
*
* This function's implemenation is not complete!
*
* @param device The PortAudio device index.
* @param channel The channel number who's name is requested.
* @return a statically allocated string with the name of the device.
* Because this string is statically allocated, it must be
* coppied if it is to be saved and used by the user after
* another call to this function.
*
*/
const char *PaMacCore_GetChannelName( int device, int channelIndex, bool input );
/** Retrieve the range of legal native buffer sizes for the specificed device, in sample frames.
@param device The global index of the PortAudio device about which the query is being made.
@param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@param maxBufferSizeFrames A pointer to the location which will receive the maximum buffer size value.
@see kAudioDevicePropertyBufferFrameSizeRange in the CoreAudio SDK.
*/
PaError PaMacCore_GetBufferSizeRange( PaDeviceIndex device,
long *minBufferSizeFrames, long *maxBufferSizeFrames );
/**
* Flags
*/
/**
* The following flags alter the behaviour of PA on the mac platform.
* they can be ORed together. These should work both for opening and
* checking a device.
*/
/** Allows PortAudio to change things like the device's frame size,
* which allows for much lower latency, but might disrupt the device
* if other programs are using it, even when you are just Querying
* the device. */
#define paMacCoreChangeDeviceParameters (0x01)
/** In combination with the above flag,
* causes the stream opening to fail, unless the exact sample rates
* are supported by the device. */
#define paMacCoreFailIfConversionRequired (0x02)
/** These flags set the SR conversion quality, if required. The wierd ordering
* allows Maximum Quality to be the default.*/
#define paMacCoreConversionQualityMin (0x0100)
#define paMacCoreConversionQualityMedium (0x0200)
#define paMacCoreConversionQualityLow (0x0300)
#define paMacCoreConversionQualityHigh (0x0400)
#define paMacCoreConversionQualityMax (0x0000)
/**
* Here are some "preset" combinations of flags (above) to get to some
* common configurations. THIS IS OVERKILL, but if more flags are added
* it won't be.
*/
/**This is the default setting: do as much sample rate conversion as possible
* and as little mucking with the device as possible. */
#define paMacCorePlayNice (0x00)
/**This setting is tuned for pro audio apps. It allows SR conversion on input
and output, but it tries to set the appropriate SR on the device.*/
#define paMacCorePro (0x01)
/**This is a setting to minimize CPU usage and still play nice.*/
#define paMacCoreMinimizeCPUButPlayNice (0x0100)
/**This is a setting to minimize CPU usage, even if that means interrupting the device. */
#define paMacCoreMinimizeCPU (0x0101)
#ifdef __cplusplus
}
#endif /** __cplusplus */
#endif /** PA_MAC_CORE_H */

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#ifndef PA_WIN_DS_H
#define PA_WIN_DS_H
/*
* $Id: $
* PortAudio Portable Real-Time Audio Library
* DirectSound specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief DirectSound-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#define paWinDirectSoundUseLowLevelLatencyParameters (0x01)
#define paWinDirectSoundUseChannelMask (0x04)
typedef struct PaWinDirectSoundStreamInfo{
unsigned long size; /**< sizeof(PaWinDirectSoundStreamInfo) */
PaHostApiTypeId hostApiType; /**< paDirectSound */
unsigned long version; /**< 2 */
unsigned long flags; /**< enable other features of this struct */
/**
low-level latency setting support
Sets the size of the DirectSound host buffer.
When flags contains the paWinDirectSoundUseLowLevelLatencyParameters
this size will be used instead of interpreting the generic latency
parameters to Pa_OpenStream(). If the flag is not set this value is ignored.
If the stream is a full duplex stream the implementation requires that
the values of framesPerBuffer for input and output match (if both are specified).
*/
unsigned long framesPerBuffer;
/**
support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinDirectSoundUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h
*/
PaWinWaveFormatChannelMask channelMask;
}PaWinDirectSoundStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_DS_H */

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#ifndef PA_WIN_WASAPI_H
#define PA_WIN_WASAPI_H
/*
* $Id: $
* PortAudio Portable Real-Time Audio Library
* DirectSound specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WASAPI-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/* Setup flags */
typedef enum PaWasapiFlags
{
/* puts WASAPI into exclusive mode */
paWinWasapiExclusive = (1 << 0),
/* allows to skip internal PA processing completely */
paWinWasapiRedirectHostProcessor = (1 << 1),
/* assigns custom channel mask */
paWinWasapiUseChannelMask = (1 << 2),
/* selects non-Event driven method of data read/write
Note: WASAPI Event driven core is capable of 2ms latency!!!, but Polling
method can only provide 15-20ms latency. */
paWinWasapiPolling = (1 << 3),
/* forces custom thread priority setting, must be used if PaWasapiStreamInfo::threadPriority
is set to a custom value */
paWinWasapiThreadPriority = (1 << 4)
}
PaWasapiFlags;
#define paWinWasapiExclusive (paWinWasapiExclusive)
#define paWinWasapiRedirectHostProcessor (paWinWasapiRedirectHostProcessor)
#define paWinWasapiUseChannelMask (paWinWasapiUseChannelMask)
#define paWinWasapiPolling (paWinWasapiPolling)
#define paWinWasapiThreadPriority (paWinWasapiThreadPriority)
/* Host processor. Allows to skip internal PA processing completely.
You must set paWinWasapiRedirectHostProcessor flag to PaWasapiStreamInfo::flags member
in order to have host processor redirected to your callback.
Use with caution! inputFrames and outputFrames depend solely on final device setup.
To query maximal values of inputFrames/outputFrames use PaWasapi_GetFramesPerHostBuffer.
*/
typedef void (*PaWasapiHostProcessorCallback) (void *inputBuffer, long inputFrames,
void *outputBuffer, long outputFrames,
void *userData);
/* Device role. */
typedef enum PaWasapiDeviceRole
{
eRoleRemoteNetworkDevice = 0,
eRoleSpeakers,
eRoleLineLevel,
eRoleHeadphones,
eRoleMicrophone,
eRoleHeadset,
eRoleHandset,
eRoleUnknownDigitalPassthrough,
eRoleSPDIF,
eRoleHDMI,
eRoleUnknownFormFactor
}
PaWasapiDeviceRole;
/* Jack connection type. */
typedef enum PaWasapiJackConnectionType
{
eJackConnTypeUnknown,
eJackConnType3Point5mm,
eJackConnTypeQuarter,
eJackConnTypeAtapiInternal,
eJackConnTypeRCA,
eJackConnTypeOptical,
eJackConnTypeOtherDigital,
eJackConnTypeOtherAnalog,
eJackConnTypeMultichannelAnalogDIN,
eJackConnTypeXlrProfessional,
eJackConnTypeRJ11Modem,
eJackConnTypeCombination
}
PaWasapiJackConnectionType;
/* Jack geometric location. */
typedef enum PaWasapiJackGeoLocation
{
eJackGeoLocUnk = 0,
eJackGeoLocRear = 0x1, /* matches EPcxGeoLocation::eGeoLocRear */
eJackGeoLocFront,
eJackGeoLocLeft,
eJackGeoLocRight,
eJackGeoLocTop,
eJackGeoLocBottom,
eJackGeoLocRearPanel,
eJackGeoLocRiser,
eJackGeoLocInsideMobileLid,
eJackGeoLocDrivebay,
eJackGeoLocHDMI,
eJackGeoLocOutsideMobileLid,
eJackGeoLocATAPI,
eJackGeoLocReserved5,
eJackGeoLocReserved6,
}
PaWasapiJackGeoLocation;
/* Jack general location. */
typedef enum PaWasapiJackGenLocation
{
eJackGenLocPrimaryBox = 0,
eJackGenLocInternal,
eJackGenLocSeparate,
eJackGenLocOther
}
PaWasapiJackGenLocation;
/* Jack's type of port. */
typedef enum PaWasapiJackPortConnection
{
eJackPortConnJack = 0,
eJackPortConnIntegratedDevice,
eJackPortConnBothIntegratedAndJack,
eJackPortConnUnknown
}
PaWasapiJackPortConnection;
/* Thread priority. */
typedef enum PaWasapiThreadPriority
{
eThreadPriorityNone = 0,
eThreadPriorityAudio, //!< Default for Shared mode.
eThreadPriorityCapture,
eThreadPriorityDistribution,
eThreadPriorityGames,
eThreadPriorityPlayback,
eThreadPriorityProAudio, //!< Default for Exclusive mode.
eThreadPriorityWindowManager
}
PaWasapiThreadPriority;
/* Stream descriptor. */
typedef struct PaWasapiJackDescription
{
unsigned long channelMapping;
unsigned long color; /* derived from macro: #define RGB(r,g,b) ((COLORREF)(((BYTE)(r)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(b))<<16))) */
PaWasapiJackConnectionType connectionType;
PaWasapiJackGeoLocation geoLocation;
PaWasapiJackGenLocation genLocation;
PaWasapiJackPortConnection portConnection;
unsigned int isConnected;
}
PaWasapiJackDescription;
/** Stream category.
Note:
- values are equal to WASAPI AUDIO_STREAM_CATEGORY enum
- supported since Windows 8.0, noop on earler versions
- values 1,2 are deprecated on Windows 10 and not included into enumeration
@version Available as of 19.6.0
*/
typedef enum PaWasapiStreamCategory
{
eAudioCategoryOther = 0,
eAudioCategoryCommunications = 3,
eAudioCategoryAlerts = 4,
eAudioCategorySoundEffects = 5,
eAudioCategoryGameEffects = 6,
eAudioCategoryGameMedia = 7,
eAudioCategoryGameChat = 8,
eAudioCategorySpeech = 9,
eAudioCategoryMovie = 10,
eAudioCategoryMedia = 11
}
PaWasapiStreamCategory;
/** Stream option.
Note:
- values are equal to WASAPI AUDCLNT_STREAMOPTIONS enum
- supported since Windows 8.1, noop on earler versions
@version Available as of 19.6.0
*/
typedef enum PaWasapiStreamOption
{
eStreamOptionNone = 0, //!< default
eStreamOptionRaw = 1, //!< bypass WASAPI Audio Engine DSP effects, supported since Windows 8.1
eStreamOptionMatchFormat = 2 //!< force WASAPI Audio Engine into a stream format, supported since Windows 10
}
PaWasapiStreamOption;
/* Stream descriptor. */
typedef struct PaWasapiStreamInfo
{
unsigned long size; /**< sizeof(PaWasapiStreamInfo) */
PaHostApiTypeId hostApiType; /**< paWASAPI */
unsigned long version; /**< 1 */
unsigned long flags; /**< collection of PaWasapiFlags */
/** Support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinWasapiUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h. Will be used only if
paWinWasapiUseChannelMask flag is specified.
*/
PaWinWaveFormatChannelMask channelMask;
/** Delivers raw data to callback obtained from GetBuffer() methods skipping
internal PortAudio processing inventory completely. userData parameter will
be the same that was passed to Pa_OpenStream method. Will be used only if
paWinWasapiRedirectHostProcessor flag is specified.
*/
PaWasapiHostProcessorCallback hostProcessorOutput;
PaWasapiHostProcessorCallback hostProcessorInput;
/** Specifies thread priority explicitly. Will be used only if paWinWasapiThreadPriority flag
is specified.
Please note, if Input/Output streams are opened simultaniously (Full-Duplex mode)
you shall specify same value for threadPriority or othervise one of the values will be used
to setup thread priority.
*/
PaWasapiThreadPriority threadPriority;
/** Stream category.
@see PaWasapiStreamCategory
@version Available as of 19.6.0
*/
PaWasapiStreamCategory streamCategory;
/** Stream option.
@see PaWasapiStreamOption
@version Available as of 19.6.0
*/
PaWasapiStreamOption streamOption;
}
PaWasapiStreamInfo;
/** Returns default sound format for device. Format is represented by PaWinWaveFormat or
WAVEFORMATEXTENSIBLE structure.
@param pFormat Pointer to PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure.
@param nFormatSize Size of PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure in bytes.
@param nDevice Device index.
@return Non-negative value indicating the number of bytes copied into format decriptor
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
*/
int PaWasapi_GetDeviceDefaultFormat( void *pFormat, unsigned int nFormatSize, PaDeviceIndex nDevice );
/** Returns device role (PaWasapiDeviceRole enum).
@param nDevice device index.
@return Non-negative value indicating device role or, a PaErrorCode (which are always negative)
if PortAudio is not initialized or an error is encountered.
*/
int/*PaWasapiDeviceRole*/ PaWasapi_GetDeviceRole( PaDeviceIndex nDevice );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.
@param hTask Handle to pointer to priority task. Must be used with PaWasapi_RevertThreadPriority
method to revert thread priority to initial state.
@param nPriorityClass Id of thread priority of PaWasapiThreadPriority type. Specifying
eThreadPriorityNone does nothing.
@return Error code indicating success or failure.
@see PaWasapi_RevertThreadPriority
*/
PaError PaWasapi_ThreadPriorityBoost( void **hTask, PaWasapiThreadPriority nPriorityClass );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.
@param hTask Task handle obtained by PaWasapi_BoostThreadPriority method.
@return Error code indicating success or failure.
@see PaWasapi_BoostThreadPriority
*/
PaError PaWasapi_ThreadPriorityRevert( void *hTask );
/** Get number of frames per host buffer. This is maximal value of frames of WASAPI buffer which
can be locked for operations. Use this method as helper to findout maximal values of
inputFrames/outputFrames of PaWasapiHostProcessorCallback.
@param pStream Pointer to PaStream to query.
@param nInput Pointer to variable to receive number of input frames. Can be NULL.
@param nOutput Pointer to variable to receive number of output frames. Can be NULL.
@return Error code indicating success or failure.
@see PaWasapiHostProcessorCallback
*/
PaError PaWasapi_GetFramesPerHostBuffer( PaStream *pStream, unsigned int *nInput, unsigned int *nOutput );
/** Get number of jacks associated with a WASAPI device. Use this method to determine if
there are any jacks associated with the provided WASAPI device. Not all audio devices
will support this capability. This is valid for both input and output devices.
@param nDevice device index.
@param jcount Number of jacks is returned in this variable
@return Error code indicating success or failure
@see PaWasapi_GetJackDescription
*/
PaError PaWasapi_GetJackCount(PaDeviceIndex nDevice, int *jcount);
/** Get the jack description associated with a WASAPI device and jack number
Before this function is called, use PaWasapi_GetJackCount to determine the
number of jacks associated with device. If jcount is greater than zero, then
each jack from 0 to jcount can be queried with this function to get the jack
description.
@param nDevice device index.
@param jindex Which jack to return information
@param KSJACK_DESCRIPTION This structure filled in on success.
@return Error code indicating success or failure
@see PaWasapi_GetJackCount
*/
PaError PaWasapi_GetJackDescription(PaDeviceIndex nDevice, int jindex, PaWasapiJackDescription *pJackDescription);
/*
IMPORTANT:
WASAPI is implemented for Callback and Blocking interfaces. It supports Shared and Exclusive
share modes.
Exclusive Mode:
Exclusive mode allows to deliver audio data directly to hardware bypassing
software mixing.
Exclusive mode is specified by 'paWinWasapiExclusive' flag.
Callback Interface:
Provides best audio quality with low latency. Callback interface is implemented in
two versions:
1) Event-Driven:
This is the most powerful WASAPI implementation which provides glitch-free
audio at around 3ms latency in Exclusive mode. Lowest possible latency for this mode is
3 ms for HD Audio class audio chips. For the Shared mode latency can not be
lower than 20 ms.
2) Poll-Driven:
Polling is another 2-nd method to operate with WASAPI. It is less efficient than Event-Driven
and provides latency at around 10-13ms. Polling must be used to overcome a system bug
under Windows Vista x64 when application is WOW64(32-bit) and Event-Driven method simply
times out (event handle is never signalled on buffer completion). Please note, such WOW64 bug
does not exist in Vista x86 or Windows 7.
Polling can be setup by speciying 'paWinWasapiPolling' flag. Our WASAPI implementation detects
WOW64 bug and sets 'paWinWasapiPolling' automatically.
Thread priority:
Normally thread priority is set automatically and does not require modification. Although
if user wants some tweaking thread priority can be modified by setting 'paWinWasapiThreadPriority'
flag and specifying 'PaWasapiStreamInfo::threadPriority' with value from PaWasapiThreadPriority
enum.
Blocking Interface:
Blocking interface is implemented but due to above described Poll-Driven method can not
deliver lowest possible latency. Specifying too low latency in Shared mode will result in
distorted audio although Exclusive mode adds stability.
Pa_IsFormatSupported:
To check format with correct Share Mode (Exclusive/Shared) you must supply
PaWasapiStreamInfo with flags paWinWasapiExclusive set through member of
PaStreamParameters::hostApiSpecificStreamInfo structure.
Pa_OpenStream:
To set desired Share Mode (Exclusive/Shared) you must supply
PaWasapiStreamInfo with flags paWinWasapiExclusive set through member of
PaStreamParameters::hostApiSpecificStreamInfo structure.
*/
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WASAPI_H */

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#ifndef PA_WIN_WAVEFORMAT_H
#define PA_WIN_WAVEFORMAT_H
/*
* PortAudio Portable Real-Time Audio Library
* Windows WAVEFORMAT* data structure utilities
* portaudio.h should be included before this file.
*
* Copyright (c) 2007 Ross Bencina
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief Windows specific PortAudio API extension and utilities header file.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
The following #defines for speaker channel masks are the same
as those in ksmedia.h, except with PAWIN_ prepended, KSAUDIO_ removed
in some cases, and casts to PaWinWaveFormatChannelMask added.
*/
typedef unsigned long PaWinWaveFormatChannelMask;
/* Speaker Positions: */
#define PAWIN_SPEAKER_FRONT_LEFT ((PaWinWaveFormatChannelMask)0x1)
#define PAWIN_SPEAKER_FRONT_RIGHT ((PaWinWaveFormatChannelMask)0x2)
#define PAWIN_SPEAKER_FRONT_CENTER ((PaWinWaveFormatChannelMask)0x4)
#define PAWIN_SPEAKER_LOW_FREQUENCY ((PaWinWaveFormatChannelMask)0x8)
#define PAWIN_SPEAKER_BACK_LEFT ((PaWinWaveFormatChannelMask)0x10)
#define PAWIN_SPEAKER_BACK_RIGHT ((PaWinWaveFormatChannelMask)0x20)
#define PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER ((PaWinWaveFormatChannelMask)0x40)
#define PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER ((PaWinWaveFormatChannelMask)0x80)
#define PAWIN_SPEAKER_BACK_CENTER ((PaWinWaveFormatChannelMask)0x100)
#define PAWIN_SPEAKER_SIDE_LEFT ((PaWinWaveFormatChannelMask)0x200)
#define PAWIN_SPEAKER_SIDE_RIGHT ((PaWinWaveFormatChannelMask)0x400)
#define PAWIN_SPEAKER_TOP_CENTER ((PaWinWaveFormatChannelMask)0x800)
#define PAWIN_SPEAKER_TOP_FRONT_LEFT ((PaWinWaveFormatChannelMask)0x1000)
#define PAWIN_SPEAKER_TOP_FRONT_CENTER ((PaWinWaveFormatChannelMask)0x2000)
#define PAWIN_SPEAKER_TOP_FRONT_RIGHT ((PaWinWaveFormatChannelMask)0x4000)
#define PAWIN_SPEAKER_TOP_BACK_LEFT ((PaWinWaveFormatChannelMask)0x8000)
#define PAWIN_SPEAKER_TOP_BACK_CENTER ((PaWinWaveFormatChannelMask)0x10000)
#define PAWIN_SPEAKER_TOP_BACK_RIGHT ((PaWinWaveFormatChannelMask)0x20000)
/* Bit mask locations reserved for future use */
#define PAWIN_SPEAKER_RESERVED ((PaWinWaveFormatChannelMask)0x7FFC0000)
/* Used to specify that any possible permutation of speaker configurations */
#define PAWIN_SPEAKER_ALL ((PaWinWaveFormatChannelMask)0x80000000)
/* DirectSound Speaker Config */
#define PAWIN_SPEAKER_DIRECTOUT 0
#define PAWIN_SPEAKER_MONO (PAWIN_SPEAKER_FRONT_CENTER)
#define PAWIN_SPEAKER_STEREO (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT)
#define PAWIN_SPEAKER_QUAD (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT)
#define PAWIN_SPEAKER_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_BACK_CENTER)
#define PAWIN_SPEAKER_5POINT1 (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT)
#define PAWIN_SPEAKER_7POINT1 (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER | PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER)
#define PAWIN_SPEAKER_5POINT1_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_SIDE_LEFT | PAWIN_SPEAKER_SIDE_RIGHT)
#define PAWIN_SPEAKER_7POINT1_SURROUND (PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
PAWIN_SPEAKER_SIDE_LEFT | PAWIN_SPEAKER_SIDE_RIGHT)
/*
According to the Microsoft documentation:
The following are obsolete 5.1 and 7.1 settings (they lack side speakers). Note this means
that the default 5.1 and 7.1 settings (KSAUDIO_SPEAKER_5POINT1 and KSAUDIO_SPEAKER_7POINT1 are
similarly obsolete but are unchanged for compatibility reasons).
*/
#define PAWIN_SPEAKER_5POINT1_BACK PAWIN_SPEAKER_5POINT1
#define PAWIN_SPEAKER_7POINT1_WIDE PAWIN_SPEAKER_7POINT1
/* DVD Speaker Positions */
#define PAWIN_SPEAKER_GROUND_FRONT_LEFT PAWIN_SPEAKER_FRONT_LEFT
#define PAWIN_SPEAKER_GROUND_FRONT_CENTER PAWIN_SPEAKER_FRONT_CENTER
#define PAWIN_SPEAKER_GROUND_FRONT_RIGHT PAWIN_SPEAKER_FRONT_RIGHT
#define PAWIN_SPEAKER_GROUND_REAR_LEFT PAWIN_SPEAKER_BACK_LEFT
#define PAWIN_SPEAKER_GROUND_REAR_RIGHT PAWIN_SPEAKER_BACK_RIGHT
#define PAWIN_SPEAKER_TOP_MIDDLE PAWIN_SPEAKER_TOP_CENTER
#define PAWIN_SPEAKER_SUPER_WOOFER PAWIN_SPEAKER_LOW_FREQUENCY
/*
PaWinWaveFormat is defined here to provide compatibility with
compilation environments which don't have headers defining
WAVEFORMATEXTENSIBLE (e.g. older versions of MSVC, Borland C++ etc.
The fields for WAVEFORMATEX and WAVEFORMATEXTENSIBLE are declared as an
unsigned char array here to avoid clients who include this file having
a dependency on windows.h and mmsystem.h, and also to to avoid having
to write separate packing pragmas for each compiler.
*/
#define PAWIN_SIZEOF_WAVEFORMATEX 18
#define PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE (PAWIN_SIZEOF_WAVEFORMATEX + 22)
typedef struct{
unsigned char fields[ PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE ];
unsigned long extraLongForAlignment; /* ensure that compiler aligns struct to DWORD */
} PaWinWaveFormat;
/*
WAVEFORMATEXTENSIBLE fields:
union {
WORD wValidBitsPerSample;
WORD wSamplesPerBlock;
WORD wReserved;
} Samples;
DWORD dwChannelMask;
GUID SubFormat;
*/
#define PAWIN_INDEXOF_WVALIDBITSPERSAMPLE (PAWIN_SIZEOF_WAVEFORMATEX+0)
#define PAWIN_INDEXOF_DWCHANNELMASK (PAWIN_SIZEOF_WAVEFORMATEX+2)
#define PAWIN_INDEXOF_SUBFORMAT (PAWIN_SIZEOF_WAVEFORMATEX+6)
/*
Valid values to pass for the waveFormatTag PaWin_InitializeWaveFormatEx and
PaWin_InitializeWaveFormatExtensible functions below. These must match
the standard Windows WAVE_FORMAT_* values.
*/
#define PAWIN_WAVE_FORMAT_PCM (1)
#define PAWIN_WAVE_FORMAT_IEEE_FLOAT (3)
#define PAWIN_WAVE_FORMAT_DOLBY_AC3_SPDIF (0x0092)
#define PAWIN_WAVE_FORMAT_WMA_SPDIF (0x0164)
/*
returns PAWIN_WAVE_FORMAT_PCM or PAWIN_WAVE_FORMAT_IEEE_FLOAT
depending on the sampleFormat parameter.
*/
int PaWin_SampleFormatToLinearWaveFormatTag( PaSampleFormat sampleFormat );
/*
Use the following two functions to initialize the waveformat structure.
*/
void PaWin_InitializeWaveFormatEx( PaWinWaveFormat *waveFormat,
int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate );
void PaWin_InitializeWaveFormatExtensible( PaWinWaveFormat *waveFormat,
int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate,
PaWinWaveFormatChannelMask channelMask );
/* Map a channel count to a speaker channel mask */
PaWinWaveFormatChannelMask PaWin_DefaultChannelMask( int numChannels );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WAVEFORMAT_H */

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#ifndef PA_WIN_WDMKS_H
#define PA_WIN_WDMKS_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* WDM/KS specific extensions
*
* Copyright (c) 1999-2007 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WDM Kernel Streaming-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include <windows.h>
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/** Flags to indicate valid fields in PaWinWDMKSInfo.
@see PaWinWDMKSInfo
@version Available as of 19.5.0.
*/
typedef enum PaWinWDMKSFlags
{
/** Makes WDMKS use the supplied latency figures instead of relying on the frame size reported
by the WaveCyclic device. Use at own risk!
*/
paWinWDMKSOverrideFramesize = (1 << 0),
/** Makes WDMKS (output stream) use the given channelMask instead of the default.
@version Available as of 19.5.0.
*/
paWinWDMKSUseGivenChannelMask = (1 << 1),
} PaWinWDMKSFlags;
typedef struct PaWinWDMKSInfo{
unsigned long size; /**< sizeof(PaWinWDMKSInfo) */
PaHostApiTypeId hostApiType; /**< paWDMKS */
unsigned long version; /**< 1 */
/** Flags indicate which fields are valid.
@see PaWinWDMKSFlags
@version Available as of 19.5.0.
*/
unsigned long flags;
/** The number of packets to use for WaveCyclic devices, range is [2, 8]. Set to zero for default value of 2. */
unsigned noOfPackets;
/** If paWinWDMKSUseGivenChannelMask bit is set in flags, use this as channelMask instead of default.
@see PaWinWDMKSFlags
@version Available as of 19.5.0.
*/
unsigned channelMask;
} PaWinWDMKSInfo;
typedef enum PaWDMKSType
{
Type_kNotUsed,
Type_kWaveCyclic,
Type_kWaveRT,
Type_kCnt,
} PaWDMKSType;
typedef enum PaWDMKSSubType
{
SubType_kUnknown,
SubType_kNotification,
SubType_kPolled,
SubType_kCnt,
} PaWDMKSSubType;
typedef struct PaWinWDMKSDeviceInfo {
wchar_t filterPath[MAX_PATH]; /**< KS filter path in Unicode! */
wchar_t topologyPath[MAX_PATH]; /**< Topology filter path in Unicode! */
PaWDMKSType streamingType;
GUID deviceProductGuid; /**< The product GUID of the device (if supported) */
} PaWinWDMKSDeviceInfo;
typedef struct PaWDMKSDirectionSpecificStreamInfo
{
PaDeviceIndex device;
unsigned channels; /**< No of channels the device is opened with */
unsigned framesPerHostBuffer; /**< No of frames of the device buffer */
int endpointPinId; /**< Endpoint pin ID (on topology filter if topologyName is not empty) */
int muxNodeId; /**< Only valid for input */
PaWDMKSSubType streamingSubType; /**< Not known until device is opened for streaming */
} PaWDMKSDirectionSpecificStreamInfo;
typedef struct PaWDMKSSpecificStreamInfo {
PaWDMKSDirectionSpecificStreamInfo input;
PaWDMKSDirectionSpecificStreamInfo output;
} PaWDMKSSpecificStreamInfo;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_DS_H */

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#ifndef PA_WIN_WMME_H
#define PA_WIN_WMME_H
/*
* $Id$
* PortAudio Portable Real-Time Audio Library
* MME specific extensions
*
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup public_header
@brief WMME-specific PortAudio API extension header file.
*/
#include "portaudio.h"
#include "pa_win_waveformat.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/* The following are flags which can be set in
PaWinMmeStreamInfo's flags field.
*/
#define paWinMmeUseLowLevelLatencyParameters (0x01)
#define paWinMmeUseMultipleDevices (0x02) /* use mme specific multiple device feature */
#define paWinMmeUseChannelMask (0x04)
/* By default, the mme implementation drops the processing thread's priority
to THREAD_PRIORITY_NORMAL and sleeps the thread if the CPU load exceeds 100%
This flag disables any priority throttling. The processing thread will always
run at THREAD_PRIORITY_TIME_CRITICAL.
*/
#define paWinMmeDontThrottleOverloadedProcessingThread (0x08)
/* Flags for non-PCM spdif passthrough.
*/
#define paWinMmeWaveFormatDolbyAc3Spdif (0x10)
#define paWinMmeWaveFormatWmaSpdif (0x20)
typedef struct PaWinMmeDeviceAndChannelCount{
PaDeviceIndex device;
int channelCount;
}PaWinMmeDeviceAndChannelCount;
typedef struct PaWinMmeStreamInfo{
unsigned long size; /**< sizeof(PaWinMmeStreamInfo) */
PaHostApiTypeId hostApiType; /**< paMME */
unsigned long version; /**< 1 */
unsigned long flags;
/* low-level latency setting support
These settings control the number and size of host buffers in order
to set latency. They will be used instead of the generic parameters
to Pa_OpenStream() if flags contains the PaWinMmeUseLowLevelLatencyParameters
flag.
If PaWinMmeStreamInfo structures with PaWinMmeUseLowLevelLatencyParameters
are supplied for both input and output in a full duplex stream, then the
input and output framesPerBuffer must be the same, or the larger of the
two must be a multiple of the smaller, otherwise a
paIncompatibleHostApiSpecificStreamInfo error will be returned from
Pa_OpenStream().
*/
unsigned long framesPerBuffer;
unsigned long bufferCount; /* formerly numBuffers */
/* multiple devices per direction support
If flags contains the PaWinMmeUseMultipleDevices flag,
this functionality will be used, otherwise the device parameter to
Pa_OpenStream() will be used instead.
If devices are specified here, the corresponding device parameter
to Pa_OpenStream() should be set to paUseHostApiSpecificDeviceSpecification,
otherwise an paInvalidDevice error will result.
The total number of channels accross all specified devices
must agree with the corresponding channelCount parameter to
Pa_OpenStream() otherwise a paInvalidChannelCount error will result.
*/
PaWinMmeDeviceAndChannelCount *devices;
unsigned long deviceCount;
/*
support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
paWinMmeUseChannelMask this allows you to specify which speakers
to address in a multichannel stream. Constants for channelMask
are specified in pa_win_waveformat.h
*/
PaWinWaveFormatChannelMask channelMask;
}PaWinMmeStreamInfo;
/** Retrieve the number of wave in handles used by a PortAudio WinMME stream.
Returns zero if the stream is output only.
@return A non-negative value indicating the number of wave in handles
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
@see PaWinMME_GetStreamInputHandle
*/
int PaWinMME_GetStreamInputHandleCount( PaStream* stream );
/** Retrieve a wave in handle used by a PortAudio WinMME stream.
@param stream The stream to query.
@param handleIndex The zero based index of the wave in handle to retrieve. This
should be in the range [0, PaWinMME_GetStreamInputHandleCount(stream)-1].
@return A valid wave in handle, or NULL if an error occurred.
@see PaWinMME_GetStreamInputHandle
*/
HWAVEIN PaWinMME_GetStreamInputHandle( PaStream* stream, int handleIndex );
/** Retrieve the number of wave out handles used by a PortAudio WinMME stream.
Returns zero if the stream is input only.
@return A non-negative value indicating the number of wave out handles
or, a PaErrorCode (which are always negative) if PortAudio is not initialized
or an error is encountered.
@see PaWinMME_GetStreamOutputHandle
*/
int PaWinMME_GetStreamOutputHandleCount( PaStream* stream );
/** Retrieve a wave out handle used by a PortAudio WinMME stream.
@param stream The stream to query.
@param handleIndex The zero based index of the wave out handle to retrieve.
This should be in the range [0, PaWinMME_GetStreamOutputHandleCount(stream)-1].
@return A valid wave out handle, or NULL if an error occurred.
@see PaWinMME_GetStreamOutputHandleCount
*/
HWAVEOUT PaWinMME_GetStreamOutputHandle( PaStream* stream, int handleIndex );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* PA_WIN_WMME_H */

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5
moonlight-qt.pro
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@ -2,10 +2,11 @@ TEMPLATE = subdirs
SUBDIRS = \
moonlight-common-c \
qmdnsengine \
app
app \
soundio
# Build the dependencies in parallel before the final app
app.depends = qmdnsengine moonlight-common-c
app.depends = qmdnsengine moonlight-common-c soundio
# Support debug and release builds from command line for CI
CONFIG += debug_and_release

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@ -0,0 +1 @@
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soundio/soundio.pro Normal file
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@ -0,0 +1,101 @@
#-------------------------------------------------
#
# Project created by QtCreator 2018-10-02T15:27:07
#
#-------------------------------------------------
QT -= core gui
TARGET = soundio
TEMPLATE = lib
# Support debug and release builds from command line for CI
CONFIG += debug_and_release
# Ensure symbols are always generated
CONFIG += force_debug_info
# Build a static library
CONFIG += staticlib
# Force MSVC to compile C as C++ for atomic support
*-msvc {
QMAKE_CFLAGS += /TP
}
# Disable warnings
CONFIG += warn_off
unix:!macx {
CONFIG += link_pkgconfig
packagesExist(libpulse) {
PKGCONFIG += libpulse
CONFIG += pulseaudio
}
packagesExist(alsa) {
PKGCONFIG += alsa
CONFIG += alsa
}
}
DEFINES += \
SOUNDIO_STATIC_LIBRARY \
SOUNDIO_VERSION_MAJOR=1 \
SOUNDIO_VERSION_MINOR=1 \
SOUNDIO_VERSION_PATCH=0 \
SOUNDIO_VERSION_STRING=\\\"1.1.0\\\"
SRC_DIR = $$PWD/libsoundio/src
INC_DIR = $$PWD/libsoundio
SOURCES += \
$$SRC_DIR/channel_layout.c \
$$SRC_DIR/dummy.c \
$$SRC_DIR/os.c \
$$SRC_DIR/ring_buffer.c \
$$SRC_DIR/soundio.c \
$$SRC_DIR/util.c
HEADERS += \
$$SRC_DIR/atomics.h \
$$SRC_DIR/dummy.h \
$$SRC_DIR/list.h \
$$SRC_DIR/os.h \
$$SRC_DIR/ring_buffer.h \
$$SRC_DIR/soundio_internal.h \
$$SRC_DIR/soundio_private.h \
$$SRC_DIR/util.h \
$$INC_DIR/soundio/soundio.h \
$$INC_DIR/soundio/endian.h
INCLUDEPATH += $$INC_DIR
win32 {
message(WASAPI backend selected)
DEFINES += SOUNDIO_HAVE_WASAPI
SOURCES += $$SRC_DIR/wasapi.c
HEADERS += $$SRC_DIR/wasapi.h
}
macx {
message(CoreAudio backend selected)
DEFINES += SOUNDIO_HAVE_COREAUDIO
SOURCES += $$SRC_DIR/coreaudio.c
HEADERS += $$SRC_DIR/coreaudio.h
}
pulseaudio {
message(PulseAudio backend selected)
DEFINES += SOUNDIO_HAVE_PULSEAUDIO
SOURCES += $$SRC_DIR/pulseaudio.c
HEADERS += $$SRC_DIR/pulseaudio.h
}
alsa {
message(ALSA backend selected)
DEFINES += SOUNDIO_HAVE_ALSA
SOURCES += $$SRC_DIR/alsa.c
HEADERS += $$SRC_DIR/alsa.h
}