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ALSA: Use SND_PCM_NONBLOCK when enumerating devices.

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David Reid
2026-01-10 08:10:21 +10:00
parent fb132046d4
commit 760765ec93
1 changed files with 9 additions and 1 deletions
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miniaudio.h
+9 -1
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@@ -27857,6 +27857,7 @@ typedef snd_pcm_state_t ma_snd_pcm_state_t;
#define MA_SND_CHMAP_BRC SND_CHMAP_BRC
/* Open mode flags. */
#define MA_SND_PCM_NONBLOCK SND_PCM_NONBLOCK
#define MA_SND_PCM_NO_AUTO_RESAMPLE SND_PCM_NO_AUTO_RESAMPLE
#define MA_SND_PCM_NO_AUTO_CHANNELS SND_PCM_NO_AUTO_CHANNELS
#define MA_SND_PCM_NO_AUTO_FORMAT SND_PCM_NO_AUTO_FORMAT
@@ -27965,6 +27966,7 @@ typedef struct
#define MA_SND_CHMAP_BRC 36
/* Open mode flags. */
#define MA_SND_PCM_NONBLOCK 0x00000001
#define MA_SND_PCM_NO_AUTO_RESAMPLE 0x00010000
#define MA_SND_PCM_NO_AUTO_CHANNELS 0x00020000
#define MA_SND_PCM_NO_AUTO_FORMAT 0x00040000
@@ -28910,7 +28912,13 @@ static ma_result ma_context_enumerate_devices__alsa(ma_context* pContext, ma_enu
ma_snd_pcm_hw_params_t* pHWParams;
ma_uint32 iFormat;
ma_uint32 iChannel;
int openMode = 0; /*MA_SND_PCM_NO_AUTO_RESAMPLE | MA_SND_PCM_NO_AUTO_CHANNELS | MA_SND_PCM_NO_AUTO_FORMAT;*/
int openMode;
/*
I'm opening this in non-blocking mode because I'm concerned that ALSA will have it block when an
exclusive hardware device is already in use.
*/
openMode = MA_SND_PCM_NONBLOCK; /*MA_SND_PCM_NO_AUTO_RESAMPLE | MA_SND_PCM_NO_AUTO_CHANNELS | MA_SND_PCM_NO_AUTO_FORMAT;*/
/*
For detailed info we need to open the device. I can think of two reasons why opening might fail: