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ALSA: Minor tweaks to the open mode used with snd_pcm_open().

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This commit is contained in:
David Reid
2018-03-10 19:18:58 +10:00
parent 9d85ea6dd2
commit 5b41483af0
1 changed files with 16 additions and 4 deletions
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mini_al.h
+16 -4
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@@ -6158,6 +6158,11 @@ typedef snd_pcm_chmap_t mal_snd_pcm_chmap_t;
#define MAL_SND_CHMAP_BC SND_CHMAP_BC
#define MAL_SND_CHMAP_BLC SND_CHMAP_BLC
#define MAL_SND_CHMAP_BRC SND_CHMAP_BRC
// Open mode flags.
#define MAL_SND_PCM_NO_AUTO_RESAMPLE SND_PCM_NO_AUTO_RESAMPLE
#define MAL_SND_PCM_NO_AUTO_CHANNELS SND_PCM_NO_AUTO_CHANNELS
#define MAL_SND_PCM_NO_AUTO_FORMAT SND_PCM_NO_AUTO_FORMAT
#else
#include <errno.h> // For EPIPE, etc.
typedef unsigned long mal_snd_pcm_uframes_t;
@@ -6249,6 +6254,11 @@ typedef struct
#define MAL_SND_CHMAP_BC 34
#define MAL_SND_CHMAP_BLC 35
#define MAL_SND_CHMAP_BRC 36
// Open mode flags.
#define MAL_SND_PCM_NO_AUTO_RESAMPLE 0x00010000
#define MAL_SND_PCM_NO_AUTO_CHANNELS 0x00020000
#define MAL_SND_PCM_NO_AUTO_FORMAT 0x00040000
#endif
typedef int (* mal_snd_pcm_open_proc) (mal_snd_pcm_t **pcm, const char *name, mal_snd_pcm_stream_t stream, int mode);
@@ -7125,6 +7135,8 @@ static mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type t
mal_snd_pcm_format_t formatALSA = mal_convert_mal_format_to_alsa_format(pConfig->format);
mal_snd_pcm_stream_t stream = (type == mal_device_type_playback) ? MAL_SND_PCM_STREAM_PLAYBACK : MAL_SND_PCM_STREAM_CAPTURE;
int openMode = MAL_SND_PCM_NO_AUTO_RESAMPLE | MAL_SND_PCM_NO_AUTO_CHANNELS | MAL_SND_PCM_NO_AUTO_FORMAT;
if (pDeviceID == NULL) {
// We're opening the default device. I don't know if trying anything other than "default" is necessary, but it makes
// me feel better to try as hard as we can get to get _something_ working.
@@ -7160,7 +7172,7 @@ static mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type t
mal_bool32 isDeviceOpen = MAL_FALSE;
for (size_t i = 0; i < mal_countof(defaultDeviceNames); ++i) {
if (defaultDeviceNames[i] != NULL && defaultDeviceNames[i][0] != '\0') {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, defaultDeviceNames[i], stream, 0) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, defaultDeviceNames[i], stream, openMode) == 0) {
isDeviceOpen = MAL_TRUE;
break;
}
@@ -7180,7 +7192,7 @@ static mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type t
mal_bool32 isDeviceOpen = MAL_FALSE;
if (pDeviceID->alsa[0] != ':') {
// The ID is not in ":0,0" format. Use the ID exactly as-is.
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, pDeviceID->alsa, stream, 0) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, pDeviceID->alsa, stream, openMode) == 0) {
isDeviceOpen = MAL_TRUE;
}
} else {
@@ -7198,7 +7210,7 @@ static mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type t
}
if (mal_strcat_s(hwid, sizeof(hwid), pDeviceID->alsa) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, hwid, stream, 0) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, hwid, stream, openMode) == 0) {
isDeviceOpen = MAL_TRUE;
}
}
@@ -7208,7 +7220,7 @@ static mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type t
if (!isDeviceOpen) {
mal_strcpy_s(hwid, sizeof(hwid), "hw");
if (mal_strcat_s(hwid, sizeof(hwid), pDeviceID->alsa) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, hwid, stream, 0) == 0) {
if (((mal_snd_pcm_open_proc)pContext->alsa.snd_pcm_open)((mal_snd_pcm_t**)&pDevice->alsa.pPCM, hwid, stream, openMode) == 0) {
isDeviceOpen = MAL_TRUE;
}
}