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Use MMCSS task in audio capture thread

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ns6089 2023-08-16 02:13:31 +03:00 committed by Cameron Gutman
parent 4d94bcc3b0
commit 3ceee008f3
2 changed files with 17 additions and 0 deletions
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1
CMakeLists.txt
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@ -204,6 +204,7 @@ if(WIN32)
dwmapi dwmapi
userenv userenv
synchronization.lib synchronization.lib
avrt
${CURL_STATIC_LIBRARIES}) ${CURL_STATIC_LIBRARIES})
set_source_files_properties(third-party/ViGEmClient/src/ViGEmClient.cpp set_source_files_properties(third-party/ViGEmClient/src/ViGEmClient.cpp

16
src/platform/windows/audio.cpp
View File

@ -13,6 +13,8 @@
#include <newdev.h> #include <newdev.h>
#include <avrt.h>
#include "src/config.h" #include "src/config.h"
#include "src/main.h" #include "src/main.h"
#include "src/platform/common.h" #include "src/platform/common.h"
@ -449,6 +451,14 @@ namespace platf::audio {
return -1; return -1;
} }
{
DWORD task_index = 0;
mmcss_task_handle = AvSetMmThreadCharacteristics("Pro Audio", &task_index);
if (!mmcss_task_handle) {
BOOST_LOG(error) << "Couldn't associate audio capture thread with Pro Audio MMCSS task [0x" << util::hex(GetLastError()).to_string_view() << ']';
}
}
status = audio_client->Start(); status = audio_client->Start();
if (FAILED(status)) { if (FAILED(status)) {
BOOST_LOG(error) << "Couldn't start recording [0x"sv << util::hex(status).to_string_view() << ']'; BOOST_LOG(error) << "Couldn't start recording [0x"sv << util::hex(status).to_string_view() << ']';
@ -467,6 +477,10 @@ namespace platf::audio {
if (audio_client) { if (audio_client) {
audio_client->Stop(); audio_client->Stop();
} }
if (mmcss_task_handle) {
AvRevertMmThreadCharacteristics(mmcss_task_handle);
}
} }
private: private:
@ -571,6 +585,8 @@ namespace platf::audio {
util::buffer_t<std::int16_t> sample_buf; util::buffer_t<std::int16_t> sample_buf;
std::int16_t *sample_buf_pos; std::int16_t *sample_buf_pos;
int channels; int channels;
HANDLE mmcss_task_handle = NULL;
}; };
class audio_control_t: public ::platf::audio_control_t { class audio_control_t: public ::platf::audio_control_t {