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ALSA: Fix a bug where a default device is not detected properly.

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This commit is contained in:
David Reid
2026-01-08 10:52:37 +10:00
parent e4a6c348d5
commit 0129fa3b2a
1 changed files with 19 additions and 4 deletions
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miniaudio.h
+19 -4
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@@ -28937,6 +28937,8 @@ static ma_result ma_context_enumerate_devices__alsa(ma_context* pContext, ma_enu
ma_device_id* pUniqueIDs = NULL;
ma_uint32 uniqueIDCount = 0;
char** ppNextDeviceHint;
ma_bool32 hasEnumeratedDefaultPlaybackDevice = MA_FALSE;
ma_bool32 hasEnumeratedDefaultCaptureDevice = MA_FALSE;
MA_ASSERT(pContextStateALSA != NULL);
MA_ASSERT(callback != NULL);
@@ -29008,18 +29010,31 @@ static ma_result ma_context_enumerate_devices__alsa(ma_context* pContext, ma_enu
MA_ZERO_OBJECT(&deviceInfo);
/* ID. */
ma_strncpy_s(deviceInfo.id.alsa, sizeof(deviceInfo.id.alsa), hwid, (size_t)-1);
/*
Defualt.
There's no good way to determine whether or not a device is the default with ALSA. We're just going to do
something simple and just use the name of "default" as the indicator.
*/
if (ma_strcmp(deviceInfo.id.alsa, "default") == 0) {
deviceInfo.isDefault = MA_TRUE;
if ((deviceType == ma_device_type_playback && !hasEnumeratedDefaultPlaybackDevice) || (deviceType == ma_device_type_capture && !hasEnumeratedDefaultCaptureDevice)) {
/* */ if (ma_strcmp(deviceInfo.id.alsa, "default") == 0) {
deviceInfo.isDefault = MA_TRUE;
} else if (ma_strcmp(deviceInfo.id.alsa, "sysdefault") == 0) {
deviceInfo.isDefault = MA_TRUE;
}
}
/* ID. */
ma_strncpy_s(deviceInfo.id.alsa, sizeof(deviceInfo.id.alsa), hwid, (size_t)-1);
if (deviceInfo.isDefault) {
if (deviceType == ma_device_type_playback) {
hasEnumeratedDefaultPlaybackDevice = MA_TRUE;
}
if (deviceType == ma_device_type_capture) {
hasEnumeratedDefaultCaptureDevice = MA_TRUE;
}
}
/*
Name.