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Write message error when something fails in alsa microphone init().

This commit is contained in:
riccardom 2009-12-24 15:05:13 +00:00
parent 7e959377ae
commit 437d19fd24
1 changed files with 30 additions and 10 deletions
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38
desmume/src/mic_alsa.cpp
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@ -19,6 +19,7 @@
*/ */
#include <alsa/asoundlib.h> #include <alsa/asoundlib.h>
#include <glib.h>
#include "types.h" #include "types.h"
#include "mic.h" #include "mic.h"
#include "debug.h" #include "debug.h"
@ -41,46 +42,65 @@ static snd_pcm_t *pcm_handle;
BOOL Mic_Init() BOOL Mic_Init()
{ {
snd_pcm_hw_params_t *hwparams; snd_pcm_hw_params_t *hwparams;
int err;
if (Mic_Inited) if (Mic_Inited)
return TRUE; return TRUE;
// Open the default sound card in capture // Open the default sound card in capture
if (snd_pcm_open(&pcm_handle, "plughw:0,0", SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK) < 0) if ((err = snd_pcm_open(&pcm_handle, "plughw:0,0", SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK)) < 0) {
g_printerr("Failed to open device: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
// Allocate the snd_pcm_hw_params_t structure and fill it. // Allocate the snd_pcm_hw_params_t structure and fill it.
snd_pcm_hw_params_alloca(&hwparams); snd_pcm_hw_params_alloca(&hwparams);
if (snd_pcm_hw_params_any(pcm_handle, hwparams) < 0) if ((err = snd_pcm_hw_params_any(pcm_handle, hwparams)) < 0) {
g_printerr("Failed to setup hw parameters: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
//Set the access //Set the access
if (snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) if ((err = snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
g_printerr("Failed to set access: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
//dir 0 == exacte (Rate = 16K exacte) //dir 0 == exacte (Rate = 16K exacte)
if (snd_pcm_hw_params_set_rate(pcm_handle, hwparams, 16000, 0) < 0) if ((err = snd_pcm_hw_params_set_rate(pcm_handle, hwparams, 16000, 0)) < 0) {
g_printerr("Failed to set rate: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
/* Set sample format */ /* Set sample format */
if (snd_pcm_hw_params_set_format(pcm_handle, hwparams, SND_PCM_FORMAT_S8) < 0) if ((err = snd_pcm_hw_params_set_format(pcm_handle, hwparams, SND_PCM_FORMAT_S8)) < 0) {
g_printerr("Failed to set format: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
// Set one channel (mono) // Set one channel (mono)
if (snd_pcm_hw_params_set_channels(pcm_handle, hwparams, 1) < 0) if ((err = snd_pcm_hw_params_set_channels(pcm_handle, hwparams, 1)) < 0) {
g_printerr("Failed to set channels: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
// Set 2 periods // Set 2 periods
if (snd_pcm_hw_params_set_periods(pcm_handle, hwparams, 2, 0) < 0) if ((err = snd_pcm_hw_params_set_periods(pcm_handle, hwparams, 2, 0)) < 0) {
g_printerr("Failed to set periods: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
// Set the buffer sise // Set the buffer sise
if (snd_pcm_hw_params_set_buffer_size(pcm_handle, hwparams, MIC_BUFSIZE) < 0) if ((err = snd_pcm_hw_params_set_buffer_size(pcm_handle, hwparams, MIC_BUFSIZE)) < 0) {
g_printerr("Failed to set buffer size: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
//Set the params //Set the params
if (snd_pcm_hw_params(pcm_handle, hwparams) < 0) if ((err = snd_pcm_hw_params(pcm_handle, hwparams)) < 0) {
g_printerr("Failed to set hw parameters: %s\n", snd_strerror(err));
return FALSE; return FALSE;
}
Mic_Inited = TRUE; Mic_Inited = TRUE;
Mic_Reset(); Mic_Reset();