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Add SDL_GetAudioDeviceSpec.

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This API is supported by pipewire, pulseaudio, coreaudio, wasapi, and disk.
This commit is contained in:
Ethan Lee 2021-02-27 17:37:25 -05:00 • committed by Sam Lantinga
parent 00fabdde18
commit 67e8522d31
19 changed files with 256 additions and 67 deletions
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26
src/audio/wasapi/SDL_wasapi_win32.c
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@ -65,26 +65,31 @@ static const IID SDL_IID_IMMNotificationClient = { 0x7991eec9, 0x7e89, 0x4d85,{
static const IID SDL_IID_IMMEndpoint = { 0x1be09788, 0x6894, 0x4089,{ 0x85, 0x86, 0x9a, 0x2a, 0x6c, 0x26, 0x5a, 0xc5 } };
static const IID SDL_IID_IAudioClient = { 0x1cb9ad4c, 0xdbfa, 0x4c32,{ 0xb1, 0x78, 0xc2, 0xf5, 0x68, 0xa7, 0x03, 0xb2 } };
static const PROPERTYKEY SDL_PKEY_Device_FriendlyName = { { 0xa45c254e, 0xdf1c, 0x4efd,{ 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, } }, 14 };
static const PROPERTYKEY SDL_PKEY_AudioEngine_DeviceFormat = { { 0xf19f064d, 0x82c, 0x4e27,{ 0xbc, 0x73, 0x68, 0x82, 0xa1, 0xbb, 0x8e, 0x4c, } }, 0 };
static char *
GetWasapiDeviceName(IMMDevice *device)
static void
GetWasapiDeviceInfo(IMMDevice *device, char **utf8dev, WAVEFORMATEXTENSIBLE *fmt)
{
/* PKEY_Device_FriendlyName gives you "Speakers (SoundBlaster Pro)" which drives me nuts. I'd rather it be
"SoundBlaster Pro (Speakers)" but I guess that's developers vs users. Windows uses the FriendlyName in
its own UIs, like Volume Control, etc. */
char *utf8dev = NULL;
IPropertyStore *props = NULL;
*utf8dev = NULL;
SDL_zerop(fmt);
if (SUCCEEDED(IMMDevice_OpenPropertyStore(device, STGM_READ, &props))) {
PROPVARIANT var;
PropVariantInit(&var);
if (SUCCEEDED(IPropertyStore_GetValue(props, &SDL_PKEY_Device_FriendlyName, &var))) {
utf8dev = WIN_StringToUTF8W(var.pwszVal);
*utf8dev = WIN_StringToUTF8W(var.pwszVal);
}
PropVariantClear(&var);
if (SUCCEEDED(IPropertyStore_GetValue(props, &SDL_PKEY_AudioEngine_DeviceFormat, &var))) {
SDL_memcpy(fmt, var.blob.pBlobData, SDL_min(var.blob.cbSize, sizeof(WAVEFORMATEXTENSIBLE)));
}
PropVariantClear(&var);
IPropertyStore_Release(props);
}
return utf8dev;
}
@ -194,9 +199,11 @@ SDLMMNotificationClient_OnDeviceStateChanged(IMMNotificationClient *ithis, LPCWS
if (SUCCEEDED(IMMEndpoint_GetDataFlow(endpoint, &flow))) {
const SDL_bool iscapture = (flow == eCapture);
if (dwNewState == DEVICE_STATE_ACTIVE) {
char *utf8dev = GetWasapiDeviceName(device);
char *utf8dev;
WAVEFORMATEXTENSIBLE fmt;
GetWasapiDeviceInfo(device, &utf8dev, &fmt);
if (utf8dev) {
WASAPI_AddDevice(iscapture, utf8dev, pwstrDeviceId);
WASAPI_AddDevice(iscapture, utf8dev, &fmt, pwstrDeviceId);
SDL_free(utf8dev);
}
} else {
@ -352,6 +359,7 @@ typedef struct
{
LPWSTR devid;
char *devname;
WAVEFORMATEXTENSIBLE fmt;
} EndpointItem;
static int sort_endpoints(const void *_a, const void *_b)
@ -408,7 +416,7 @@ WASAPI_EnumerateEndpointsForFlow(const SDL_bool iscapture)
IMMDevice *device = NULL;
if (SUCCEEDED(IMMDeviceCollection_Item(collection, i, &device))) {
if (SUCCEEDED(IMMDevice_GetId(device, &item->devid))) {
item->devname = GetWasapiDeviceName(device);
GetWasapiDeviceInfo(device, &item->devname, &item->fmt);
}
IMMDevice_Release(device);
}
@ -421,7 +429,7 @@ WASAPI_EnumerateEndpointsForFlow(const SDL_bool iscapture)
for (i = 0; i < total; i++) {
EndpointItem *item = items + i;
if ((item->devid) && (item->devname)) {
WASAPI_AddDevice(iscapture, item->devname, item->devid);
WASAPI_AddDevice(iscapture, item->devname, &item->fmt, item->devid);
}
SDL_free(item->devname);
CoTaskMemFree(item->devid);