src/output: add algorithm for finding usable AudioFormat
* Use PcmExport for 24bit packed output
This commit is contained in:
Shen-Ta Hsieh
Max Kellermann
parent
6f77af20d0
commit
da642b2890
2
NEWS
2
NEWS
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@ -5,6 +5,8 @@ ver 0.22.7 (not yet released)
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- ffmpeg: fix build problem with FFmpeg 3.4
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* storage
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- curl: don't use glibc extension
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* output
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- wasapi: add algorithm for finding usable audio format
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ver 0.22.6 (2021/02/16)
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* fix missing tags on songs in queue
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@ -23,11 +23,13 @@
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#include "lib/icu/Win32.hxx"
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#include "mixer/MixerList.hxx"
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#include "output/Error.hxx"
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#include "pcm/Export.hxx"
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#include "thread/Cond.hxx"
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#include "thread/Mutex.hxx"
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#include "thread/Name.hxx"
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#include "thread/Thread.hxx"
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#include "util/AllocatedString.hxx"
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#include "util/ConstBuffer.hxx"
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#include "util/Domain.hxx"
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#include "util/RuntimeError.hxx"
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#include "util/ScopeExit.hxx"
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@ -94,23 +96,38 @@ inline bool SafeSilenceTry(Functor &&functor) {
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}
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}
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inline void SetFormat(WAVEFORMATEXTENSIBLE &device_format,
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const AudioFormat &audio_format) noexcept {
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device_format.dwChannelMask = GetChannelMask(audio_format.channels);
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device_format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
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device_format.Format.nChannels = audio_format.channels;
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device_format.Format.nSamplesPerSec = audio_format.sample_rate;
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device_format.Format.nBlockAlign = audio_format.GetFrameSize();
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device_format.Format.nAvgBytesPerSec =
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audio_format.sample_rate * audio_format.GetFrameSize();
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device_format.Format.wBitsPerSample = audio_format.GetSampleSize() * 8;
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device_format.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
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device_format.Samples.wValidBitsPerSample = audio_format.GetSampleSize() * 8;
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if (audio_format.format == SampleFormat::FLOAT) {
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device_format.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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std::vector<WAVEFORMATEXTENSIBLE> GetFormats(const AudioFormat &audio_format) noexcept {
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std::vector<WAVEFORMATEXTENSIBLE> Result;
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if (audio_format.format == SampleFormat::S24_P32) {
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Result.resize(2);
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Result[0].Format.wBitsPerSample = 24;
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Result[0].Samples.wValidBitsPerSample = 24;
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Result[1].Format.wBitsPerSample = 32;
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Result[1].Samples.wValidBitsPerSample = 24;
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} else {
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device_format.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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Result.resize(1);
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Result[0].Format.wBitsPerSample = audio_format.GetSampleSize() * 8;
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Result[0].Samples.wValidBitsPerSample = audio_format.GetSampleSize() * 8;
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}
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const DWORD mask = GetChannelMask(audio_format.channels);
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const GUID guid = audio_format.format == SampleFormat::FLOAT
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? KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
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: KSDATAFORMAT_SUBTYPE_PCM;
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for (auto &device_format : Result) {
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device_format.dwChannelMask = mask;
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device_format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
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device_format.Format.nChannels = audio_format.channels;
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device_format.Format.nSamplesPerSec = audio_format.sample_rate;
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device_format.Format.cbSize =
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sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
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device_format.SubFormat = guid;
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device_format.Format.nBlockAlign = device_format.Format.nChannels *
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device_format.Format.wBitsPerSample /
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8;
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device_format.Format.nAvgBytesPerSec =
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audio_format.sample_rate * device_format.Format.nBlockAlign;
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}
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return Result;
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}
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#ifdef ENABLE_DSD
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@ -213,6 +230,7 @@ private:
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WAVEFORMATEXTENSIBLE device_format;
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std::optional<WasapiOutputThread> thread;
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std::size_t watermark;
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std::optional<PcmExport> pcm_export;
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friend bool wasapi_is_exclusive(WasapiOutput &output) noexcept;
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friend IMMDevice *wasapi_output_get_device(WasapiOutput &output) noexcept;
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@ -222,6 +240,7 @@ private:
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void DoOpen(AudioFormat &audio_format);
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void OpenDevice();
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bool TryFormatExclusive(const AudioFormat &audio_format);
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void FindExclusiveFormatSupported(AudioFormat &audio_format);
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void FindSharedFormatSupported(AudioFormat &audio_format);
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void EnumerateDevices();
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@ -259,29 +278,28 @@ void WasapiOutputThread::Work() noexcept {
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return;
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}
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HRESULT result;
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UINT32 data_in_frames;
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result = client->GetCurrentPadding(&data_in_frames);
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if (FAILED(result)) {
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throw FormatHResultError(result,
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"Failed to get current padding");
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}
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UINT32 write_in_frames = buffer_size_in_frames;
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if (!is_exclusive) {
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UINT32 data_in_frames;
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if (HRESULT result =
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client->GetCurrentPadding(&data_in_frames);
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FAILED(result)) {
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throw FormatHResultError(
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result, "Failed to get current padding");
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}
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if (data_in_frames >= buffer_size_in_frames) {
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continue;
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}
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write_in_frames -= data_in_frames;
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} else if (data_in_frames >= buffer_size_in_frames * 2) {
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continue;
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}
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BYTE *data;
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DWORD mode = 0;
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result = render_client->GetBuffer(write_in_frames, &data);
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if (FAILED(result)) {
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if (HRESULT result =
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render_client->GetBuffer(write_in_frames, &data);
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FAILED(result)) {
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throw FormatHResultError(result, "Failed to get buffer");
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}
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@ -338,10 +356,6 @@ void WasapiOutput::DoDisable() noexcept {
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/// run inside COMWorkerThread
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void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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if (audio_format.channels == 0) {
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throw FormatInvalidArgument("channels should > 0");
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}
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client.reset();
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DWORD state;
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@ -353,16 +367,12 @@ void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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OpenDevice();
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}
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HRESULT result;
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result = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL, nullptr,
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client.AddressCast());
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if (FAILED(result)) {
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if (HRESULT result = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL, nullptr,
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client.AddressCast());
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FAILED(result)) {
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throw FormatHResultError(result, "Unable to activate audio client");
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}
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if (audio_format.format == SampleFormat::S24_P32) {
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audio_format.format = SampleFormat::S32;
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}
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if (audio_format.channels > 8) {
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audio_format.channels = 8;
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}
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@ -378,6 +388,24 @@ void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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} else {
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FindSharedFormatSupported(audio_format);
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}
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bool require_export = audio_format.format == SampleFormat::S24_P32;
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if (require_export) {
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PcmExport::Params params;
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params.dsd_mode = PcmExport::DsdMode::NONE;
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params.shift8 = false;
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params.pack24 = false;
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if (device_format.Format.wBitsPerSample == 32 &&
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device_format.Samples.wValidBitsPerSample == 24) {
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params.shift8 = true;
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}
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if (device_format.Format.wBitsPerSample == 24) {
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params.pack24 = true;
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}
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FormatDebug(wasapi_output_domain, "Packing data: shift8=%d pack24=%d",
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int(params.shift8), int(params.pack24));
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pcm_export.emplace();
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pcm_export->Open(audio_format.format, audio_format.channels, params);
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}
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using s = std::chrono::seconds;
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using ms = std::chrono::milliseconds;
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@ -385,78 +413,95 @@ void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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using hundred_ns = std::chrono::duration<uint64_t, std::ratio<1, 10000000>>;
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// The unit in REFERENCE_TIME is hundred nanoseconds
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REFERENCE_TIME device_period;
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result = client->GetDevicePeriod(&device_period, nullptr);
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if (FAILED(result)) {
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REFERENCE_TIME default_device_period, min_device_period;
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if (HRESULT result =
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client->GetDevicePeriod(&default_device_period, &min_device_period);
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FAILED(result)) {
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throw FormatHResultError(result, "Unable to get device period");
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}
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FormatDebug(wasapi_output_domain, "Device period: %I64u ns",
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size_t(ns(hundred_ns(device_period)).count()));
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FormatDebug(wasapi_output_domain,
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"Default device period: %I64u ns, Minimum device period: "
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"%I64u ns",
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ns(hundred_ns(default_device_period)).count(),
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ns(hundred_ns(min_device_period)).count());
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REFERENCE_TIME buffer_duration = device_period;
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if (!Exclusive()) {
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REFERENCE_TIME buffer_duration;
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if (Exclusive()) {
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buffer_duration = default_device_period;
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} else {
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const REFERENCE_TIME align = hundred_ns(ms(50)).count();
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buffer_duration = (align / device_period) * device_period;
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buffer_duration = (align / default_device_period) * default_device_period;
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}
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FormatDebug(wasapi_output_domain, "Buffer duration: %I64u ns",
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size_t(ns(hundred_ns(buffer_duration)).count()));
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if (Exclusive()) {
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result = client->Initialize(
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AUDCLNT_SHAREMODE_EXCLUSIVE,
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AUDCLNT_STREAMFLAGS_NOPERSIST | AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
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buffer_duration, buffer_duration,
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reinterpret_cast<WAVEFORMATEX *>(&device_format), nullptr);
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if (result == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED) {
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// https://docs.microsoft.com/en-us/windows/win32/api/audioclient/nf-audioclient-iaudioclient-initialize
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UINT32 buffer_size_in_frames = 0;
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result = client->GetBufferSize(&buffer_size_in_frames);
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if (FAILED(result)) {
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throw FormatHResultError(
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result, "Unable to get audio client buffer size");
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}
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buffer_duration = std::ceil(
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double(buffer_size_in_frames * hundred_ns(s(1)).count()) /
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SampleRate());
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FormatDebug(wasapi_output_domain,
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"Aligned buffer duration: %I64u ns",
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size_t(ns(hundred_ns(buffer_duration)).count()));
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client.reset();
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result = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL,
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nullptr, client.AddressCast());
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if (FAILED(result)) {
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throw FormatHResultError(
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result, "Unable to activate audio client");
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}
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result = client->Initialize(
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AUDCLNT_SHAREMODE_EXCLUSIVE,
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AUDCLNT_STREAMFLAGS_NOPERSIST |
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if (HRESULT result = client->Initialize(
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AUDCLNT_SHAREMODE_EXCLUSIVE,
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AUDCLNT_STREAMFLAGS_EVENTCALLBACK, buffer_duration,
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buffer_duration,
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reinterpret_cast<WAVEFORMATEX *>(&device_format), nullptr);
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FAILED(result)) {
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if (result == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED) {
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// https://docs.microsoft.com/en-us/windows/win32/api/audioclient/nf-audioclient-iaudioclient-initialize
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UINT32 buffer_size_in_frames = 0;
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result = client->GetBufferSize(&buffer_size_in_frames);
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if (FAILED(result)) {
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throw FormatHResultError(
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result,
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"Unable to get audio client buffer size");
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}
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buffer_duration =
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std::ceil(double(buffer_size_in_frames *
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hundred_ns(s(1)).count()) /
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SampleRate());
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FormatDebug(
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wasapi_output_domain,
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"Aligned buffer duration: %I64u ns",
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size_t(ns(hundred_ns(buffer_duration)).count()));
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client.reset();
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result = device->Activate(__uuidof(IAudioClient),
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CLSCTX_ALL, nullptr,
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client.AddressCast());
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if (FAILED(result)) {
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throw FormatHResultError(
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result,
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"Unable to activate audio client");
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}
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result = client->Initialize(
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AUDCLNT_SHAREMODE_EXCLUSIVE,
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AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
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buffer_duration, buffer_duration,
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reinterpret_cast<WAVEFORMATEX *>(&device_format),
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nullptr);
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buffer_duration, buffer_duration,
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reinterpret_cast<WAVEFORMATEX *>(&device_format),
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nullptr);
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}
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if (FAILED(result)) {
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throw FormatHResultError(
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result, "Unable to initialize audio client");
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}
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}
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} else {
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result = client->Initialize(
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AUDCLNT_SHAREMODE_SHARED,
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AUDCLNT_STREAMFLAGS_NOPERSIST | AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
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buffer_duration, 0,
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reinterpret_cast<WAVEFORMATEX *>(&device_format), nullptr);
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}
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if (FAILED(result)) {
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throw FormatHResultError(result, "Unable to initialize audio client");
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if (HRESULT result = client->Initialize(
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AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
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buffer_duration, 0,
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reinterpret_cast<WAVEFORMATEX *>(&device_format), nullptr);
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FAILED(result)) {
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throw FormatHResultError(result,
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"Unable to initialize audio client");
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}
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}
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ComPtr<IAudioRenderClient> render_client;
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result = client->GetService(IID_PPV_ARGS(render_client.Address()));
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if (FAILED(result)) {
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if (HRESULT result = client->GetService(IID_PPV_ARGS(render_client.Address()));
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FAILED(result)) {
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throw FormatHResultError(result, "Unable to get new render client");
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}
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UINT32 buffer_size_in_frames;
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result = client->GetBufferSize(&buffer_size_in_frames);
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if (FAILED(result)) {
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if (HRESULT result = client->GetBufferSize(&buffer_size_in_frames);
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FAILED(result)) {
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throw FormatHResultError(result,
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"Unable to get audio client buffer size");
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}
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@ -465,8 +510,8 @@ void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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thread.emplace(client.get(), std::move(render_client), FrameSize(),
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buffer_size_in_frames, is_exclusive);
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result = client->SetEventHandle(thread->event.handle());
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if (FAILED(result)) {
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if (HRESULT result = client->SetEventHandle(thread->event.handle());
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FAILED(result)) {
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throw FormatHResultError(result, "Unable to set event handler");
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}
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@ -474,19 +519,33 @@ void WasapiOutput::DoOpen(AudioFormat &audio_format) {
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}
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void WasapiOutput::Close() noexcept {
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assert(client && thread);
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Pause();
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assert(thread);
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try {
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COMWorker::Async([&]() {
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if (HRESULT result = client->Stop(); FAILED(result)) {
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throw FormatHResultError(result, "Failed to stop client");
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}
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}).get();
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thread->CheckException();
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} catch (std::exception &err) {
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FormatError(wasapi_output_domain, "exception while stoping: %s",
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err.what());
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}
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is_started = false;
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thread->Finish();
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thread->Join();
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COMWorker::Async([&]() {
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thread.reset();
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client.reset();
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}).get();
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pcm_export.reset();
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}
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std::chrono::steady_clock::duration WasapiOutput::Delay() const noexcept {
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if (!client || !is_started) {
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return std::chrono::steady_clock::duration::zero();
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if (!is_started) {
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// idle while paused
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return std::chrono::seconds(1);
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}
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assert(thread);
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@ -505,9 +564,16 @@ size_t WasapiOutput::Play(const void *chunk, size_t size) {
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not_interrupted.test_and_set();
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ConstBuffer<void> input(chunk, size);
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if (pcm_export) {
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input = pcm_export->Export(input);
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}
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if (input.empty())
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return size;
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do {
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const size_t consumed_size =
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thread->spsc_buffer.push(static_cast<const BYTE *>(chunk), size);
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const size_t consumed_size = thread->spsc_buffer.push(
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static_cast<const BYTE *>(input.data), input.size);
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if (consumed_size == 0) {
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assert(is_started);
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thread->WaitDataPoped();
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@ -519,12 +585,9 @@ size_t WasapiOutput::Play(const void *chunk, size_t size) {
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if (!is_started) {
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is_started = true;
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thread->Play();
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COMWorker::Async([&]() {
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HRESULT result;
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result = client->Start();
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if (FAILED(result)) {
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if (HRESULT result = client->Start(); FAILED(result)) {
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throw FormatHResultError(
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result, "Failed to start client");
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}
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@ -533,28 +596,19 @@ size_t WasapiOutput::Play(const void *chunk, size_t size) {
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thread->CheckException();
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if (pcm_export) {
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return pcm_export->CalcInputSize(consumed_size);
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}
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return consumed_size;
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} while (true);
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}
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bool WasapiOutput::Pause() {
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if (!client || !thread) {
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return false;
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if (is_started) {
|
||||
thread->Pause();
|
||||
is_started = false;
|
||||
}
|
||||
if (!is_started) {
|
||||
return true;
|
||||
}
|
||||
|
||||
HRESULT result;
|
||||
result = client->Stop();
|
||||
if (FAILED(result)) {
|
||||
throw FormatHResultError(result, "Failed to stop client");
|
||||
}
|
||||
|
||||
is_started = false;
|
||||
thread->Pause();
|
||||
thread->CheckException();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -603,70 +657,69 @@ void WasapiOutput::OpenDevice() {
|
|||
}
|
||||
|
||||
/// run inside COMWorkerThread
|
||||
void WasapiOutput::FindExclusiveFormatSupported(AudioFormat &audio_format) {
|
||||
SetFormat(device_format, audio_format);
|
||||
|
||||
do {
|
||||
HRESULT result;
|
||||
result = client->IsFormatSupported(
|
||||
bool WasapiOutput::TryFormatExclusive(const AudioFormat &audio_format) {
|
||||
for (auto test_format : GetFormats(audio_format)) {
|
||||
HRESULT result = client->IsFormatSupported(
|
||||
AUDCLNT_SHAREMODE_EXCLUSIVE,
|
||||
reinterpret_cast<WAVEFORMATEX *>(&device_format), nullptr);
|
||||
|
||||
switch (result) {
|
||||
case S_OK:
|
||||
return;
|
||||
case AUDCLNT_E_UNSUPPORTED_FORMAT:
|
||||
break;
|
||||
default:
|
||||
throw FormatHResultError(result, "IsFormatSupported failed");
|
||||
reinterpret_cast<WAVEFORMATEX *>(&test_format), nullptr);
|
||||
const auto format_string = ToString(audio_format);
|
||||
const auto result_string = std::string(HRESULTToString(result));
|
||||
FormatDebug(wasapi_output_domain, "Trying %s %lu %u-%u (exclusive) -> %s",
|
||||
format_string.c_str(), test_format.Format.nSamplesPerSec,
|
||||
test_format.Format.wBitsPerSample,
|
||||
test_format.Samples.wValidBitsPerSample,
|
||||
result_string.c_str());
|
||||
if (SUCCEEDED(result)) {
|
||||
device_format = test_format;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
// Trying PCM fallback.
|
||||
if (audio_format.format == SampleFormat::FLOAT) {
|
||||
audio_format.format = SampleFormat::S32;
|
||||
/// run inside COMWorkerThread
|
||||
void WasapiOutput::FindExclusiveFormatSupported(AudioFormat &audio_format) {
|
||||
for (uint8_t channels : {0, 2, 6, 8, 7, 1, 4, 5, 3}) {
|
||||
if (audio_format.channels == channels) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Trying sample rate fallback.
|
||||
if (audio_format.sample_rate > 96000) {
|
||||
audio_format.sample_rate = 96000;
|
||||
continue;
|
||||
if (channels == 0) {
|
||||
channels = audio_format.channels;
|
||||
}
|
||||
|
||||
if (audio_format.sample_rate > 88200) {
|
||||
audio_format.sample_rate = 88200;
|
||||
continue;
|
||||
auto old_channels = std::exchange(audio_format.channels, channels);
|
||||
for (uint32_t rate : {0, 384000, 352800, 192000, 176400, 96000, 88200,
|
||||
48000, 44100, 32000, 22050, 16000, 11025, 8000}) {
|
||||
if (audio_format.sample_rate <= rate) {
|
||||
continue;
|
||||
}
|
||||
if (rate == 0) {
|
||||
rate = audio_format.sample_rate;
|
||||
}
|
||||
auto old_rate = std::exchange(audio_format.sample_rate, rate);
|
||||
for (SampleFormat format : {
|
||||
SampleFormat::UNDEFINED,
|
||||
SampleFormat::S32,
|
||||
SampleFormat::S24_P32,
|
||||
SampleFormat::S16,
|
||||
SampleFormat::S8,
|
||||
}) {
|
||||
if (audio_format.format == format) {
|
||||
continue;
|
||||
}
|
||||
if (format == SampleFormat::UNDEFINED) {
|
||||
format = audio_format.format;
|
||||
}
|
||||
auto old_format =
|
||||
std::exchange(audio_format.format, format);
|
||||
if (TryFormatExclusive(audio_format)) {
|
||||
return;
|
||||
}
|
||||
audio_format.format = old_format;
|
||||
}
|
||||
audio_format.sample_rate = old_rate;
|
||||
}
|
||||
|
||||
if (audio_format.sample_rate > 64000) {
|
||||
audio_format.sample_rate = 64000;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (audio_format.sample_rate > 48000) {
|
||||
audio_format.sample_rate = 48000;
|
||||
continue;
|
||||
}
|
||||
|
||||
// Trying 2 channels fallback.
|
||||
if (audio_format.channels > 2) {
|
||||
audio_format.channels = 2;
|
||||
continue;
|
||||
}
|
||||
|
||||
// Trying S16 fallback.
|
||||
if (audio_format.format == SampleFormat::S32) {
|
||||
audio_format.format = SampleFormat::S16;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (audio_format.sample_rate > 41100) {
|
||||
audio_format.sample_rate = 41100;
|
||||
continue;
|
||||
}
|
||||
|
||||
throw FormatHResultError(result, "Format is not supported");
|
||||
} while (true);
|
||||
audio_format.channels = old_channels;
|
||||
}
|
||||
}
|
||||
|
||||
/// run inside COMWorkerThread
|
||||
|
|
@ -679,15 +732,23 @@ void WasapiOutput::FindSharedFormatSupported(AudioFormat &audio_format) {
|
|||
if (FAILED(result)) {
|
||||
throw FormatHResultError(result, "GetMixFormat failed");
|
||||
}
|
||||
audio_format.sample_rate = device_format.Format.nSamplesPerSec;
|
||||
|
||||
SetFormat(device_format, audio_format);
|
||||
audio_format.sample_rate = mixer_format->nSamplesPerSec;
|
||||
device_format = GetFormats(audio_format).front();
|
||||
|
||||
ComHeapPtr<WAVEFORMATEXTENSIBLE> closest_format;
|
||||
result = client->IsFormatSupported(
|
||||
AUDCLNT_SHAREMODE_SHARED,
|
||||
reinterpret_cast<WAVEFORMATEX *>(&device_format),
|
||||
closest_format.AddressCast<WAVEFORMATEX>());
|
||||
{
|
||||
const auto format_string = ToString(audio_format);
|
||||
const auto result_string = std::string(HRESULTToString(result));
|
||||
FormatDebug(wasapi_output_domain, "Trying %s %lu %u-%u (shared) -> %s",
|
||||
format_string.c_str(), device_format.Format.nSamplesPerSec,
|
||||
device_format.Format.wBitsPerSample,
|
||||
device_format.Samples.wValidBitsPerSample,
|
||||
result_string.c_str());
|
||||
}
|
||||
|
||||
if (FAILED(result) && result != AUDCLNT_E_UNSUPPORTED_FORMAT) {
|
||||
throw FormatHResultError(result, "IsFormatSupported failed");
|
||||
|
|
@ -701,12 +762,23 @@ void WasapiOutput::FindSharedFormatSupported(AudioFormat &audio_format) {
|
|||
// Trying channels fallback.
|
||||
audio_format.channels = mixer_format->nChannels;
|
||||
|
||||
SetFormat(device_format, audio_format);
|
||||
device_format = GetFormats(audio_format).front();
|
||||
|
||||
result = client->IsFormatSupported(
|
||||
AUDCLNT_SHAREMODE_SHARED,
|
||||
reinterpret_cast<WAVEFORMATEX *>(&device_format),
|
||||
closest_format.AddressCast<WAVEFORMATEX>());
|
||||
{
|
||||
const auto format_string = ToString(audio_format);
|
||||
const auto result_string = std::string(HRESULTToString(result));
|
||||
FormatDebug(wasapi_output_domain,
|
||||
"Trying %s %lu %u-%u (shared) -> %s",
|
||||
format_string.c_str(),
|
||||
device_format.Format.nSamplesPerSec,
|
||||
device_format.Format.wBitsPerSample,
|
||||
device_format.Samples.wValidBitsPerSample,
|
||||
result_string.c_str());
|
||||
}
|
||||
if (FAILED(result)) {
|
||||
throw FormatHResultError(result, "Format is not supported");
|
||||
}
|
||||
|
|
@ -745,7 +817,10 @@ void WasapiOutput::FindSharedFormatSupported(AudioFormat &audio_format) {
|
|||
audio_format.format = SampleFormat::S16;
|
||||
break;
|
||||
case 32:
|
||||
audio_format.format = SampleFormat::S32;
|
||||
audio_format.format =
|
||||
device_format.Samples.wValidBitsPerSample == 32
|
||||
? SampleFormat::S32
|
||||
: SampleFormat::S24_P32;
|
||||
break;
|
||||
}
|
||||
} else if (device_format.SubFormat == KSDATAFORMAT_SUBTYPE_IEEE_FLOAT) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue