summaryrefslogtreecommitdiffstats
path: root/tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx')
-rw-r--r--tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx676
1 files changed, 676 insertions, 0 deletions
diff --git a/tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx b/tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx
new file mode 100644
index 0000000..c3a88e3
--- /dev/null
+++ b/tinyDAV/src/audio/wasapi/tdav_consumer_wasapi.cxx
@@ -0,0 +1,676 @@
+/*Copyright (C) 2013 Mamadou DIOP
+* Copyright (C) 2013-2014 Doubango Telecom <http://www.doubango.org>
+*
+* This file is part of Open Source Doubango Framework.
+*
+* DOUBANGO is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* DOUBANGO is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with DOUBANGO.
+*/
+/**@file tdav_consumer_wasapi.cxx
+ * @brief Microsoft Windows Audio Session API (WASAPI) consumer.
+ * http://msdn.microsoft.com/en-us/library/windows/desktop/dd316551(v=vs.85).aspx
+ */
+#include "tinydav/audio/wasapi/tdav_consumer_wasapi.h"
+
+#if HAVE_WASAPI
+
+#include "tinydav/audio/tdav_consumer_audio.h"
+
+#include "tsk_thread.h"
+#include "tsk_memory.h"
+#include "tsk_string.h"
+#include "tsk_condwait.h"
+#include "tsk_debug.h"
+
+#include <windows.h>
+#include <audioclient.h>
+#include <phoneaudioclient.h>
+
+#include <speex/speex_buffer.h>
+
+#if !defined(TDAV_WASAPI_CONSUMER_NOTIF_POS_COUNT)
+# define TDAV_WASAPI_CONSUMER_NOTIF_POS_COUNT 4
+#endif
+#define WASAPI_MILLIS_TO_100NS(MILLIS) (((LONGLONG)(MILLIS)) * 10000ui64)
+#define WASAPI_100NS_TO_MILLIS(NANOS) (((LONGLONG)(NANOS)) / 10000ui64)
+
+#define WASAPI_DEBUG_INFO(FMT, ...) TSK_DEBUG_INFO("[WASAPI Consumer] " FMT, ##__VA_ARGS__)
+#define WASAPI_DEBUG_WARN(FMT, ...) TSK_DEBUG_WARN("[WASAPI Consumer] " FMT, ##__VA_ARGS__)
+#define WASAPI_DEBUG_ERROR(FMT, ...) TSK_DEBUG_ERROR("[WASAPI Consumer] " FMT, ##__VA_ARGS__)
+#define WASAPI_DEBUG_FATAL(FMT, ...) TSK_DEBUG_FATAL("[WASAPI Consumer] " FMT, ##__VA_ARGS__)
+
+struct tdav_consumer_wasapi_s;
+
+namespace Doubango
+{
+ namespace VoIP
+ {
+ ref class AudioRender sealed
+ {
+ public:
+ virtual ~AudioRender();
+ internal:
+ AudioRender();
+
+ int Prepare(struct tdav_consumer_wasapi_s* wasapi, const tmedia_codec_t* codec);
+ int UnPrepare();
+ int Start();
+ int Stop();
+ int Pause();
+ int Consume(const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr);
+ private:
+ tsk_size_t Read(void* data, tsk_size_t size);
+ void AsyncThread(Windows::Foundation::IAsyncAction^ operation);
+
+ private:
+ tsk_mutex_handle_t* m_hMutex;
+ const struct tdav_consumer_wasapi_s* m_pWrappedConsumer; // Must not take ref() otherwise dtor() will be never called (circular reference)
+ IAudioClient2* m_pDevice;
+ IAudioRenderClient* m_pClient;
+ HANDLE m_hEvent;
+ Windows::Foundation::IAsyncAction^ m_pAsyncThread;
+ INT32 m_nBytesPerNotif;
+ INT32 m_nSourceFrameSizeInBytes;
+ UINT32 m_nMaxFrameCount;
+ UINT32 m_nPtime;
+
+ struct {
+ struct {
+ void* buffer;
+ tsk_size_t size;
+ } chunck;
+ tsk_ssize_t leftBytes;
+ SpeexBuffer* buffer;
+ tsk_size_t size;
+ } m_ring;
+
+ bool m_bStarted;
+ bool m_bPrepared;
+ bool m_bPaused;
+ };
+ }
+}
+
+typedef struct tdav_consumer_wasapi_s
+{
+ TDAV_DECLARE_CONSUMER_AUDIO;
+
+ Doubango::VoIP::AudioRender ^AudioRender;
+}
+tdav_consumer_wasapi_t;
+
+extern "C" void tdav_win32_print_error(const char* func, HRESULT hr);
+
+
+/* ============ Media consumer Interface ================= */
+
+static int tdav_consumer_wasapi_set(tmedia_consumer_t* self, const tmedia_param_t* param)
+{
+ return tdav_consumer_audio_set(TDAV_CONSUMER_AUDIO(self), param);
+}
+
+static int tdav_consumer_wasapi_prepare(tmedia_consumer_t* self, const tmedia_codec_t* codec)
+{
+ tdav_consumer_wasapi_t* wasapi = (tdav_consumer_wasapi_t*)self;
+
+ if (!wasapi || !codec || !wasapi->AudioRender) {
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ TMEDIA_CONSUMER(wasapi)->audio.ptime = TMEDIA_CODEC_PTIME_AUDIO_DECODING(codec);
+ TMEDIA_CONSUMER(wasapi)->audio.in.channels = TMEDIA_CODEC_CHANNELS_AUDIO_DECODING(codec);
+ TMEDIA_CONSUMER(wasapi)->audio.in.rate = TMEDIA_CODEC_RATE_DECODING(codec);
+
+ WASAPI_DEBUG_INFO("in.channels=%d, out.channles=%d, in.rate=%d, out.rate=%d, ptime=%d",
+ TMEDIA_CONSUMER(wasapi)->audio.in.channels,
+ TMEDIA_CONSUMER(wasapi)->audio.out.channels,
+ TMEDIA_CONSUMER(wasapi)->audio.in.rate,
+ TMEDIA_CONSUMER(wasapi)->audio.out.rate,
+ TMEDIA_CONSUMER(wasapi)->audio.ptime);
+
+ return wasapi->AudioRender->Prepare(wasapi, codec);
+}
+
+static int tdav_consumer_wasapi_start(tmedia_consumer_t* self)
+{
+ tdav_consumer_wasapi_t* wasapi = (tdav_consumer_wasapi_t*)self;
+
+ WASAPI_DEBUG_INFO("tdav_consumer_wasapi_start()");
+
+ if (!wasapi || !wasapi->AudioRender) {
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return wasapi->AudioRender->Start();
+}
+
+
+static int tdav_consumer_wasapi_consume(tmedia_consumer_t* self, const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr)
+{
+ tdav_consumer_wasapi_t* wasapi = (tdav_consumer_wasapi_t*)self;
+ if (!wasapi || !wasapi->AudioRender || !buffer || !size) {
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return wasapi->AudioRender->Consume(buffer, size, proto_hdr);
+}
+
+static int tdav_consumer_wasapi_pause(tmedia_consumer_t* self)
+{
+ tdav_consumer_wasapi_t* wasapi = (tdav_consumer_wasapi_t*)self;
+
+ if (!wasapi || !wasapi->AudioRender){
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return wasapi->AudioRender->Pause();
+}
+
+static int tdav_consumer_wasapi_stop(tmedia_consumer_t* self)
+{
+ tdav_consumer_wasapi_t* wasapi = (tdav_consumer_wasapi_t*)self;
+
+ WASAPI_DEBUG_INFO("tdav_consumer_wasapi_stop()");
+
+ if (!wasapi || !wasapi->AudioRender) {
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ return wasapi->AudioRender->Stop();
+}
+
+
+
+
+
+
+
+Doubango::VoIP::AudioRender::AudioRender()
+ : m_pDevice(nullptr)
+ , m_hMutex(nullptr)
+ , m_pClient(nullptr)
+ , m_hEvent(nullptr)
+ , m_pAsyncThread(nullptr)
+ , m_pWrappedConsumer(nullptr)
+ , m_nBytesPerNotif(0)
+ , m_nSourceFrameSizeInBytes(0)
+ , m_nMaxFrameCount(0)
+ , m_nPtime(0)
+ , m_bStarted(false)
+ , m_bPrepared(false)
+ , m_bPaused(false)
+{
+ memset(&m_ring, 0, sizeof(m_ring));
+
+ if (!(m_hMutex = tsk_mutex_create())) {
+ throw ref new Platform::FailureException(L"Failed to create mutex");
+ }
+}
+
+Doubango::VoIP::AudioRender::~AudioRender()
+{
+ Stop();
+ UnPrepare();
+
+ tsk_mutex_destroy(&m_hMutex);
+}
+
+int Doubango::VoIP::AudioRender::Prepare(tdav_consumer_wasapi_t* wasapi, const tmedia_codec_t* codec)
+{
+ HRESULT hr = E_FAIL;
+ int ret = 0;
+ WAVEFORMATEX wfx = {0};
+ AudioClientProperties properties = {0};
+ LPCWSTR pwstrRenderId = nullptr;
+
+ #define WASAPI_SET_ERROR(code) ret = (code); goto bail;
+
+ tsk_mutex_lock(m_hMutex);
+
+ if (m_bPrepared) {
+ WASAPI_DEBUG_INFO("Already prepared");
+ goto bail;
+ }
+
+ if (!wasapi || !codec) {
+ WASAPI_DEBUG_ERROR("Invalid parameter");
+ WASAPI_SET_ERROR(-1);
+ }
+
+ if (m_pDevice || m_pClient) {
+ WASAPI_DEBUG_ERROR("consumer already prepared");
+ WASAPI_SET_ERROR(-2);
+ }
+
+ pwstrRenderId = GetDefaultAudioRenderId(AudioDeviceRole::Communications);
+
+ if (NULL == pwstrRenderId) {
+ tdav_win32_print_error("GetDefaultAudioRenderId", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-3);
+ }
+
+ hr = ActivateAudioInterface(pwstrRenderId, __uuidof(IAudioClient2), (void**)&m_pDevice);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("ActivateAudioInterface", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-4);
+ }
+
+ if (SUCCEEDED(hr)) {
+ properties.cbSize = sizeof AudioClientProperties;
+ properties.eCategory = AudioCategory_Communications;
+ hr = m_pDevice->SetClientProperties(&properties);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("SetClientProperties", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-5);
+ }
+ }
+ else {
+ tdav_win32_print_error("ActivateAudioInterface", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-6);
+ }
+
+ /* Set best format */
+ {
+ wfx.wFormatTag = WAVE_FORMAT_PCM;
+ wfx.nChannels = TMEDIA_CONSUMER(wasapi)->audio.in.channels;
+ wfx.nSamplesPerSec = TMEDIA_CONSUMER(wasapi)->audio.in.rate;
+ wfx.wBitsPerSample = TMEDIA_CONSUMER(wasapi)->audio.bits_per_sample;
+ wfx.nBlockAlign = (wfx.nChannels * wfx.wBitsPerSample/8);
+ wfx.nAvgBytesPerSec = (wfx.nSamplesPerSec * wfx.nBlockAlign);
+
+ PWAVEFORMATEX pwfxClosestMatch = NULL;
+ hr = m_pDevice->IsFormatSupported(AUDCLNT_SHAREMODE_SHARED, &wfx, &pwfxClosestMatch);
+ if (hr != S_OK && hr != S_FALSE) {
+ tdav_win32_print_error("IsFormatSupported", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-8);
+ }
+
+ if (hr == S_FALSE) {
+ if (!pwfxClosestMatch) {
+ WASAPI_DEBUG_ERROR("malloc(%d) failed", sizeof(WAVEFORMATEX));
+ WASAPI_SET_ERROR(-7);
+ }
+
+ wfx.nSamplesPerSec = pwfxClosestMatch->nSamplesPerSec;
+ wfx.nChannels = pwfxClosestMatch->nChannels;
+#if 0
+ wfx.wBitsPerSample = pwfxClosestMatch->wBitsPerSample;
+#endif
+ wfx.nBlockAlign = wfx.nChannels * (wfx.wBitsPerSample / 8);
+ wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
+ // Request resampler
+ TMEDIA_CONSUMER(wasapi)->audio.out.rate = (uint32_t)wfx.nSamplesPerSec;
+ TMEDIA_CONSUMER(wasapi)->audio.bits_per_sample = (uint8_t)wfx.wBitsPerSample;
+ TMEDIA_CONSUMER(wasapi)->audio.out.channels = (uint8_t)wfx.nChannels;
+
+ WASAPI_DEBUG_INFO("Audio device format fallback: rate=%d, bps=%d, channels=%d", wfx.nSamplesPerSec, wfx.wBitsPerSample, wfx.nChannels);
+ }
+ if (pwfxClosestMatch) {
+ CoTaskMemFree(pwfxClosestMatch);
+ }
+ }
+
+ m_nSourceFrameSizeInBytes = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
+ m_nBytesPerNotif = ((wfx.nAvgBytesPerSec * TMEDIA_CONSUMER(wasapi)->audio.ptime) / 1000);
+
+ // Initialize
+ hr = m_pDevice->Initialize(
+ AUDCLNT_SHAREMODE_SHARED,
+ AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
+ WASAPI_MILLIS_TO_100NS(TDAV_WASAPI_CONSUMER_NOTIF_POS_COUNT * TMEDIA_CONSUMER(wasapi)->audio.ptime),
+ 0,
+ &wfx,
+ NULL);
+ if (!SUCCEEDED(hr)){
+ tdav_win32_print_error("#WASAPI: Render::Initialize", hr);
+ WASAPI_SET_ERROR(-9);
+ }
+
+ REFERENCE_TIME DefaultDevicePeriod, MinimumDevicePeriod;
+ hr = m_pDevice->GetDevicePeriod(&DefaultDevicePeriod, &MinimumDevicePeriod);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("GetDevicePeriod", hr);
+ WASAPI_SET_ERROR(-10);
+ }
+ hr = m_pDevice->GetBufferSize(&m_nMaxFrameCount);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("GetBufferSize", hr);
+ WASAPI_SET_ERROR(-10);
+ }
+
+ WASAPI_DEBUG_INFO("#WASAPI (Playback): BufferSize=%u, DefaultDevicePeriod=%lld ms, MinimumDevicePeriod=%lldms", m_nMaxFrameCount, WASAPI_100NS_TO_MILLIS(DefaultDevicePeriod), WASAPI_100NS_TO_MILLIS(MinimumDevicePeriod));
+
+ if (!m_hEvent) {
+ if (!(m_hEvent = CreateEventEx(NULL, NULL, 0, EVENT_MODIFY_STATE | SYNCHRONIZE))) {
+ tdav_win32_print_error("CreateEventEx(EVENT_MODIFY_STATE | SYNCHRONIZE)", HRESULT_FROM_WIN32(GetLastError()));
+ WASAPI_SET_ERROR(-11);
+ }
+ }
+
+ hr = m_pDevice->SetEventHandle(m_hEvent);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("SetEventHandle", hr);
+ WASAPI_SET_ERROR(-12);
+ }
+
+ hr = m_pDevice->GetService(__uuidof(IAudioRenderClient), (void**)&m_pClient);
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("GetService", hr);
+ WASAPI_SET_ERROR(-14);
+ }
+
+ m_ring.chunck.size = (TMEDIA_CONSUMER(wasapi)->audio.ptime * TMEDIA_CONSUMER(wasapi)->audio.out.rate * ((TMEDIA_CONSUMER(wasapi)->audio.bits_per_sample >> 3) * TMEDIA_CONSUMER(wasapi)->audio.out.channels)) / 1000;
+ m_ring.size = TDAV_WASAPI_CONSUMER_NOTIF_POS_COUNT * m_ring.chunck.size;
+ if (!(m_ring.chunck.buffer = tsk_realloc(m_ring.chunck.buffer, m_ring.chunck.size))) {
+ m_ring.size = 0;
+ WASAPI_DEBUG_ERROR("Failed to allocate new buffer");
+ WASAPI_SET_ERROR(-15);
+ }
+ if (!m_ring.buffer) {
+ m_ring.buffer = speex_buffer_init(m_ring.size);
+ }
+ else {
+ int sret;
+ if ((sret = speex_buffer_resize(m_ring.buffer, m_ring.size)) < 0) {
+ WASAPI_DEBUG_ERROR("speex_buffer_resize(%d) failed with error code=%d", m_ring.size, sret);
+ WASAPI_SET_ERROR(-16);
+ }
+ }
+ if (!m_ring.buffer) {
+ WASAPI_DEBUG_ERROR("Failed to create a new ring buffer with size = %d", m_ring.size);
+ WASAPI_SET_ERROR(-17);
+ }
+
+bail:
+ if (pwstrRenderId) {
+ CoTaskMemFree((LPVOID)pwstrRenderId);
+ }
+ if (ret != 0) {
+ UnPrepare();
+ }
+
+ if ((m_bPrepared = (ret == 0))) {
+ m_pWrappedConsumer = wasapi;
+ m_nPtime = TMEDIA_CONSUMER(wasapi)->audio.ptime;
+ }
+
+ tsk_mutex_unlock(m_hMutex);
+
+ return ret;
+}
+
+int Doubango::VoIP::AudioRender::UnPrepare()
+{
+ tsk_mutex_lock(m_hMutex);
+
+ if (m_hEvent) {
+ CloseHandle(m_hEvent), m_hEvent = nullptr;
+ }
+ if (m_pDevice) {
+ m_pDevice->Release(), m_pDevice = nullptr;
+ }
+ if (m_pClient) {
+ m_pClient->Release(), m_pClient = nullptr;
+ }
+
+ TSK_FREE(m_ring.chunck.buffer);
+ if (m_ring.buffer) {
+ speex_buffer_destroy(m_ring.buffer);
+ m_ring.buffer = nullptr;
+ }
+
+ m_pWrappedConsumer = nullptr;
+
+ m_bPrepared = false;
+
+ tsk_mutex_unlock(m_hMutex);
+
+ return 0;
+}
+
+int Doubango::VoIP::AudioRender::Start()
+{
+ tsk_mutex_lock(m_hMutex);
+
+ if (m_bStarted) {
+ WASAPI_DEBUG_INFO("already started");
+ goto bail;
+ }
+ if (!m_bPrepared) {
+ WASAPI_DEBUG_ERROR("not prepared");
+ goto bail;
+ }
+
+ m_pAsyncThread = Windows::System::Threading::ThreadPool::RunAsync(ref new Windows::System::Threading::WorkItemHandler(this, &Doubango::VoIP::AudioRender::AsyncThread),
+ Windows::System::Threading::WorkItemPriority::High,
+ Windows::System::Threading::WorkItemOptions::TimeSliced);
+
+ if ((m_bStarted = (m_pAsyncThread != nullptr))) {
+ HRESULT hr = m_pDevice->Start();
+ if(!SUCCEEDED(hr)) {
+ tdav_win32_print_error("Device::Start", hr);
+ Stop();
+ }
+ m_bPaused = false;
+ }
+
+bail:
+ tsk_mutex_unlock(m_hMutex);
+
+ return (m_bStarted ? 0 : -2);
+}
+
+int Doubango::VoIP::AudioRender::Stop()
+{
+ m_bStarted = false;
+
+ tsk_mutex_lock(m_hMutex);
+
+ if (m_hEvent) {
+ SetEvent(m_hEvent);
+ }
+
+ if (m_pAsyncThread) {
+ m_pAsyncThread->Cancel();
+ m_pAsyncThread->Close();
+ m_pAsyncThread = nullptr;
+ }
+
+ if (m_pDevice) {
+ m_pDevice->Stop();
+ }
+
+ // will be prepared again before next start()
+ UnPrepare();
+
+ tsk_mutex_unlock(m_hMutex);
+
+ return 0;
+}
+
+int Doubango::VoIP::AudioRender::Pause()
+{
+ m_bPaused = true;
+
+ return 0;
+}
+
+int Doubango::VoIP::AudioRender::Consume(const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr)
+{
+ int ret;
+ // tsk_mutex_lock(m_hMutex);
+ ret = tdav_consumer_audio_put(TDAV_CONSUMER_AUDIO(m_pWrappedConsumer), buffer, size, proto_hdr); // thread-safe
+ // tsk_mutex_unlock(m_hMutex);
+ return ret;
+}
+
+tsk_size_t Doubango::VoIP::AudioRender::Read(void* data, tsk_size_t size)
+{
+ tsk_ssize_t retSize = 0, availSize;
+
+ m_ring.leftBytes += size;
+ while (m_ring.leftBytes >= (tsk_ssize_t)m_ring.chunck.size) {
+ m_ring.leftBytes -= m_ring.chunck.size;
+ retSize = (tsk_ssize_t)tdav_consumer_audio_get(TDAV_CONSUMER_AUDIO(m_pWrappedConsumer), m_ring.chunck.buffer, m_ring.chunck.size);
+ tdav_consumer_audio_tick(TDAV_CONSUMER_AUDIO(m_pWrappedConsumer));
+ speex_buffer_write(m_ring.buffer, m_ring.chunck.buffer, retSize);
+ }
+ // IMPORTANT: looks like there is a bug in speex: continously trying to read more than avail
+ // many times can corrupt the buffer. At least on OS X 1.5
+#if 0
+ if (speex_buffer_get_available(m_ring.buffer) >= (tsk_ssize_t)size) {
+ retSize = speex_buffer_read(m_ring.buffer, data, size);
+ }
+ else{
+ memset(data, 0, size);
+ }
+#else
+ availSize = speex_buffer_get_available(m_ring.buffer);
+ if (availSize == 0) {
+ memset(data, 0, size);
+ }
+ else {
+ retSize = speex_buffer_read(m_ring.buffer, data, min(availSize, (tsk_ssize_t)size));
+ if (availSize < (tsk_ssize_t)size) {
+ memset(((uint8_t*)data) + availSize, 0, (size - availSize));
+ }
+ }
+
+#endif
+
+ return retSize;
+}
+
+void Doubango::VoIP::AudioRender::AsyncThread(Windows::Foundation::IAsyncAction^ operation)
+{
+ HRESULT hr = S_OK;
+ INT32 nFramesToWrite;
+ UINT32 nPadding, nRead;
+ DWORD retval;
+
+ WASAPI_DEBUG_INFO("#WASAPI: __playback_thread -- START");
+
+ #define BREAK_WHILE tsk_mutex_unlock(m_hMutex); break;
+
+ while (m_bStarted && SUCCEEDED(hr)) {
+ retval = WaitForSingleObjectEx(m_hEvent, /*m_nPtime*/INFINITE, FALSE);
+
+ tsk_mutex_lock(m_hMutex);
+
+ if (!m_bStarted) {
+ BREAK_WHILE;
+ }
+
+ if (retval == WAIT_OBJECT_0) {
+ hr = m_pDevice->GetCurrentPadding(&nPadding);
+ if (SUCCEEDED(hr)) {
+ BYTE* pRenderBuffer = NULL;
+ nFramesToWrite = m_nMaxFrameCount - nPadding;
+
+ if (nFramesToWrite > 0) {
+ hr = m_pClient->GetBuffer(nFramesToWrite, &pRenderBuffer);
+ if (SUCCEEDED(hr)) {
+ nRead = Read(pRenderBuffer, (nFramesToWrite * m_nSourceFrameSizeInBytes));
+
+ // Release the buffer
+ hr = m_pClient->ReleaseBuffer(nFramesToWrite, (nRead == 0) ? AUDCLNT_BUFFERFLAGS_SILENT : 0);
+ }
+ }
+ }
+ }
+
+ tsk_mutex_unlock(m_hMutex);
+ }// end-of-while
+
+ if (!SUCCEEDED(hr)) {
+ tdav_win32_print_error("AsyncThread: ", hr);
+ }
+
+
+ WASAPI_DEBUG_INFO("__playback_thread(%s) -- STOP", (SUCCEEDED(hr) && retval == WAIT_OBJECT_0) ? "OK" : "NOK");
+}
+
+
+
+
+
+
+
+//
+// WaveAPI consumer object definition
+//
+/* constructor */
+static tsk_object_t* tdav_consumer_wasapi_ctor(tsk_object_t * self, va_list * app)
+{
+ tdav_consumer_wasapi_t *wasapi = (tdav_consumer_wasapi_t*)self;
+ if (wasapi) {
+ /* init base */
+ tdav_consumer_audio_init(TDAV_CONSUMER_AUDIO(wasapi));
+ /* init self */
+
+ wasapi->AudioRender = ref new Doubango::VoIP::AudioRender();
+ }
+ return self;
+}
+/* destructor */
+static tsk_object_t* tdav_consumer_wasapi_dtor(tsk_object_t * self)
+{
+ tdav_consumer_wasapi_t *wasapi = (tdav_consumer_wasapi_t*)self;
+ if (wasapi) {
+ /* stop */
+ tdav_consumer_wasapi_stop((tmedia_consumer_t*)self);
+ /* deinit base */
+ tdav_consumer_audio_deinit(TDAV_CONSUMER_AUDIO(wasapi));
+ /* deinit self */
+ if (wasapi->AudioRender) {
+ delete wasapi->AudioRender;
+ wasapi->AudioRender = nullptr;
+ }
+ }
+
+ return self;
+}
+/* object definition */
+static const tsk_object_def_t tdav_consumer_wasapi_def_s =
+{
+ sizeof(tdav_consumer_wasapi_t),
+ tdav_consumer_wasapi_ctor,
+ tdav_consumer_wasapi_dtor,
+ tdav_consumer_audio_cmp,
+};
+/* plugin definition*/
+static const tmedia_consumer_plugin_def_t tdav_consumer_wasapi_plugin_def_s =
+{
+ &tdav_consumer_wasapi_def_s,
+
+ tmedia_audio,
+ "Microsoft Windows Audio Session API (WASAPI) consumer",
+
+ tdav_consumer_wasapi_set,
+ tdav_consumer_wasapi_prepare,
+ tdav_consumer_wasapi_start,
+ tdav_consumer_wasapi_consume,
+ tdav_consumer_wasapi_pause,
+ tdav_consumer_wasapi_stop
+};
+const tmedia_consumer_plugin_def_t *tdav_consumer_wasapi_plugin_def_t = &tdav_consumer_wasapi_plugin_def_s;
+
+
+
+
+#endif /* HAVE_WASAPI */
OpenPOWER on IntegriCloud