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https://github.com/Ryujinx/libsoundio.git
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WASAPI: get formats for shared and exclusive devices
This commit is contained in:
Andrew Kelley
parent
709fc5fa19
commit
1f58cdc0bd
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@ -254,7 +254,6 @@ view `coverage/index.html` in a browser.
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- raw mode
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- channel layout
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- period duration
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- formats
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- watching
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- sine wave
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- microphone
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@ -112,8 +112,8 @@ int soundio_get_bytes_per_sample(enum SoundIoFormat format) {
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const char * soundio_format_string(enum SoundIoFormat format) {
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switch (format) {
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case SoundIoFormatU8: return "signed 8-bit";
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case SoundIoFormatS8: return "unsigned 8-bit";
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case SoundIoFormatS8: return "signed 8-bit";
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case SoundIoFormatU8: return "unsigned 8-bit";
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case SoundIoFormatS16LE: return "signed 16-bit LE";
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case SoundIoFormatS16BE: return "signed 16-bit BE";
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case SoundIoFormatU16LE: return "unsigned 16-bit LE";
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251
src/wasapi.cpp
251
src/wasapi.cpp
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@ -28,6 +28,39 @@ const static GUID SOUNDIO_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT = {
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const static GUID SOUNDIO_KSDATAFORMAT_SUBTYPE_PCM = {
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0x00000001,0x0000,0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
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// Adding more common sample rates helps the heuristics; feel free to do that.
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static int test_sample_rates[] = {
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8000,
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11025,
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16000,
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22050,
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32000,
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37800,
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44056,
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44100,
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47250,
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48000,
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50000,
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50400,
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88200,
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96000,
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176400,
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192000,
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352800,
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2822400,
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5644800,
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};
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// If you modify this list, also modify `to_wave_format` appropriately.
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static SoundIoFormat test_formats[] = {
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SoundIoFormatU8,
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SoundIoFormatS16LE,
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SoundIoFormatS24LE,
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SoundIoFormatS32LE,
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SoundIoFormatFloat32LE,
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SoundIoFormatFloat64LE,
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};
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// converts a windows wide string to a UTF-8 encoded char *
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// Possible errors:
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// * SoundIoErrorNoMem
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@ -127,6 +160,44 @@ static SoundIoFormat from_wave_format_format(WAVEFORMATEXTENSIBLE *wave_format)
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return SoundIoFormatInvalid;
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}
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// only needs to support the formats in test_formats
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static void to_wave_format(SoundIoFormat format, WAVEFORMATEXTENSIBLE *wave_format) {
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switch (format) {
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case SoundIoFormatU8:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_PCM;
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wave_format->Format.wBitsPerSample = 8;
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wave_format->Samples.wValidBitsPerSample = 8;
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break;
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case SoundIoFormatS16LE:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_PCM;
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wave_format->Format.wBitsPerSample = 16;
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wave_format->Samples.wValidBitsPerSample = 16;
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break;
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case SoundIoFormatS24LE:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_PCM;
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wave_format->Format.wBitsPerSample = 32;
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wave_format->Samples.wValidBitsPerSample = 24;
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break;
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case SoundIoFormatS32LE:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_PCM;
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wave_format->Format.wBitsPerSample = 32;
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wave_format->Samples.wValidBitsPerSample = 32;
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break;
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case SoundIoFormatFloat32LE:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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wave_format->Format.wBitsPerSample = 32;
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wave_format->Samples.wValidBitsPerSample = 32;
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break;
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case SoundIoFormatFloat64LE:
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wave_format->SubFormat = SOUNDIO_KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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wave_format->Format.wBitsPerSample = 64;
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wave_format->Samples.wValidBitsPerSample = 64;
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break;
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default:
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soundio_panic("to_wave_format: unsupported format");
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}
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}
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static SoundIoDeviceAim data_flow_to_aim(EDataFlow data_flow) {
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return (data_flow == eRender) ? SoundIoDeviceAimOutput : SoundIoDeviceAimInput;
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}
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@ -136,6 +207,13 @@ static double from_reference_time(REFERENCE_TIME rt) {
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return ((double)rt) / 10000000.0;
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}
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static void destruct_device(SoundIoDevicePrivate *dev) {
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SoundIoDeviceWasapi *dw = &dev->backend_data.wasapi;
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if (dw->audio_client)
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IUnknown_Release(dw->audio_client);
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dw->sample_rates.deinit();
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}
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struct RefreshDevices {
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IMMDeviceCollection *collection;
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IMMDevice *mm_device;
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@ -180,12 +258,129 @@ static void deinit_refresh_devices(RefreshDevices *rd) {
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CoTaskMemFree(rd->wave_format);
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}
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static void destruct_device(SoundIoDevicePrivate *dev) {
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static int detect_valid_formats(RefreshDevices *rd, WAVEFORMATEXTENSIBLE *wave_format,
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SoundIoDevicePrivate *dev, AUDCLNT_SHAREMODE share_mode)
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{
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SoundIoDevice *device = &dev->pub;
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SoundIoDeviceWasapi *dw = &dev->backend_data.wasapi;
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if (dw->audio_client)
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IUnknown_Release(dw->audio_client);
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HRESULT hr;
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device->format_count = 0;
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device->formats = allocate<SoundIoFormat>(array_length(test_formats));
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if (!device->formats)
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return SoundIoErrorNoMem;
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WAVEFORMATEX *closest_match = nullptr;
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WAVEFORMATEXTENSIBLE orig_wave_format = *wave_format;
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for (int i = 0; i < array_length(test_formats); i += 1) {
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SoundIoFormat test_format = test_formats[i];
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to_wave_format(test_format, wave_format);
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HRESULT hr = IAudioClient_IsFormatSupported(dw->audio_client, share_mode,
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(WAVEFORMATEX*)wave_format, &closest_match);
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if (closest_match) {
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CoTaskMemFree(closest_match);
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closest_match = nullptr;
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}
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if (hr == S_OK) {
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device->formats[device->format_count++] = test_format;
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} else if (hr == AUDCLNT_E_UNSUPPORTED_FORMAT || hr == S_FALSE || hr == E_INVALIDARG) {
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continue;
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} else {
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*wave_format = orig_wave_format;
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return SoundIoErrorOpeningDevice;
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}
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}
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*wave_format = orig_wave_format;
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return 0;
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}
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static int add_sample_rate(SoundIoList<SoundIoSampleRateRange> *sample_rates, int *current_min, int the_max) {
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int err;
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if ((err = sample_rates->add_one()))
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return err;
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SoundIoSampleRateRange *last_range = &sample_rates->last();
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last_range->min = *current_min;
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last_range->max = the_max;
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return 0;
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}
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static int do_sample_rate_test(SoundIoDevicePrivate *dev, WAVEFORMATEXTENSIBLE *wave_format,
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int test_sample_rate, AUDCLNT_SHAREMODE share_mode, int *current_min, int *last_success_rate)
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{
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SoundIoDeviceWasapi *dw = &dev->backend_data.wasapi;
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WAVEFORMATEX *closest_match = nullptr;
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int err;
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wave_format->Format.nSamplesPerSec = test_sample_rate;
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HRESULT hr = IAudioClient_IsFormatSupported(dw->audio_client, share_mode,
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(WAVEFORMATEX*)wave_format, &closest_match);
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if (closest_match) {
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CoTaskMemFree(closest_match);
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closest_match = nullptr;
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}
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if (hr == S_OK) {
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if (*current_min == -1) {
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*current_min = test_sample_rate;
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}
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*last_success_rate = test_sample_rate;
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} else if (hr == AUDCLNT_E_UNSUPPORTED_FORMAT || hr == S_FALSE || hr == E_INVALIDARG) {
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if (*current_min != -1) {
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if ((err = add_sample_rate(&dw->sample_rates, current_min, *last_success_rate)))
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return err;
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*current_min = -1;
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}
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} else {
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return SoundIoErrorOpeningDevice;
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}
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return 0;
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}
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static int detect_valid_sample_rates(RefreshDevices *rd, WAVEFORMATEXTENSIBLE *wave_format,
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SoundIoDevicePrivate *dev, AUDCLNT_SHAREMODE share_mode)
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{
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SoundIoDeviceWasapi *dw = &dev->backend_data.wasapi;
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int err;
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DWORD orig_sample_rate = wave_format->Format.nSamplesPerSec;
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assert(dw->sample_rates.length == 0);
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int current_min = -1;
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int last_success_rate = -1;
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for (int i = 0; i < array_length(test_sample_rates); i += 1) {
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for (int offset = -1; offset <= 1; offset += 1) {
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int test_sample_rate = test_sample_rates[i] + offset;
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if ((err = do_sample_rate_test(dev, wave_format, test_sample_rate, share_mode,
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¤t_min, &last_success_rate)))
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{
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wave_format->Format.nSamplesPerSec = orig_sample_rate;
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return err;
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}
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}
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}
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if (current_min != -1) {
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if ((err = add_sample_rate(&dw->sample_rates, ¤t_min, last_success_rate))) {
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wave_format->Format.nSamplesPerSec = orig_sample_rate;
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return err;
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}
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}
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SoundIoDevice *device = &dev->pub;
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device->sample_rate_count = dw->sample_rates.length;
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device->sample_rates = dw->sample_rates.items;
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wave_format->Format.nSamplesPerSec = orig_sample_rate;
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return 0;
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}
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static int refresh_devices(SoundIoPrivate *si) {
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SoundIo *soundio = &si->pub;
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SoundIoWasapi *siw = &si->backend_data.wasapi;
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@ -384,6 +579,37 @@ static int refresh_devices(SoundIoPrivate *si) {
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return SoundIoErrorNoMem;
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}
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// Get the format that WASAPI opens the device with for shared streams.
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// This is guaranteed to work, so we use this to modulate the sample
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// rate while holding the format constant and vice versa.
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if (rd.prop_variant_value_inited)
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PropVariantClear(&rd.prop_variant_value);
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PropVariantInit(&rd.prop_variant_value);
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rd.prop_variant_value_inited = true;
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if (FAILED(hr = IPropertyStore_GetValue(rd.prop_store, PKEY_AudioEngine_DeviceFormat,
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&rd.prop_variant_value)))
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{
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deinit_refresh_devices(&rd);
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return SoundIoErrorOpeningDevice;
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}
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WAVEFORMATEXTENSIBLE *valid_wave_format = (WAVEFORMATEXTENSIBLE *)rd.prop_variant_value.blob.pBlobData;
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if (valid_wave_format->Format.wFormatTag != WAVE_FORMAT_EXTENSIBLE) {
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deinit_refresh_devices(&rd);
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return SoundIoErrorOpeningDevice;
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}
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if ((err = detect_valid_sample_rates(&rd, valid_wave_format, dev_raw,
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AUDCLNT_SHAREMODE_EXCLUSIVE)))
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{
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deinit_refresh_devices(&rd);
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return err;
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}
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if ((err = detect_valid_formats(&rd, valid_wave_format, dev_raw,
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AUDCLNT_SHAREMODE_EXCLUSIVE)))
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{
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deinit_refresh_devices(&rd);
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return err;
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}
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if (rd.wave_format)
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CoTaskMemFree(rd.wave_format);
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if (FAILED(hr = IAudioClient_GetMixFormat(dev_w_shared->audio_client, (WAVEFORMATEX**)&rd.wave_format))) {
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@ -395,17 +621,24 @@ static int refresh_devices(SoundIoPrivate *si) {
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return SoundIoErrorOpeningDevice;
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}
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rd.device_shared->sample_rate_current = rd.wave_format->Format.nSamplesPerSec;
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rd.device_shared->current_format = from_wave_format_format(rd.wave_format);
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// WASAPI performs resampling in shared mode, so any value is valid.
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// Let's pick some reasonable min and max values.
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rd.device_shared->sample_rate_count = 1;
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rd.device_shared->sample_rates = &dev_shared->prealloc_sample_rate_range;
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rd.device_shared->sample_rates[0].min = min(SOUNDIO_MIN_SAMPLE_RATE, rd.device_shared->sample_rate_current);
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rd.device_shared->sample_rates[0].max = max(SOUNDIO_MAX_SAMPLE_RATE, rd.device_shared->sample_rate_current);
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rd.device_shared->sample_rates[0].min = min(SOUNDIO_MIN_SAMPLE_RATE,
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rd.device_shared->sample_rate_current);
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rd.device_shared->sample_rates[0].max = max(SOUNDIO_MAX_SAMPLE_RATE,
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rd.device_shared->sample_rate_current);
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rd.device_shared->current_format = from_wave_format_format(rd.wave_format);
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rd.device_shared->format_count = 1;
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rd.device_shared->formats = &dev_shared->prealloc_format;
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rd.device_shared->formats[0] = rd.device_shared->current_format;
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if ((err = detect_valid_formats(&rd, rd.wave_format, dev_shared,
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AUDCLNT_SHAREMODE_SHARED)))
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{
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deinit_refresh_devices(&rd);
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return err;
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}
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from_wave_format_layout(rd.wave_format, &rd.device_shared->current_layout);
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rd.device_shared->layout_count = 1;
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@ -11,6 +11,7 @@
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#include "soundio/soundio.h"
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#include "soundio/os.h"
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#include "atomics.hpp"
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#include "list.hpp"
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struct IMMDeviceEnumerator;
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struct IAudioClient;
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@ -18,6 +19,7 @@ int soundio_wasapi_init(struct SoundIoPrivate *si);
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struct SoundIoDeviceWasapi {
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IAudioClient *audio_client;
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SoundIoList<SoundIoSampleRateRange> sample_rates;
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};
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struct SoundIoWasapi {
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