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A different recording device may be specified for sound card access

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This commit is contained in:
Andreas Eversberg
2024-03-13 17:56:09 +01:00
parent fabc849642
commit ce58b765f5
2 changed files with 22 additions and 21 deletions
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src/libsound/sound_alsa.c
+18 -19
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@@ -36,7 +36,7 @@ typedef struct sound {
int pchannels, cchannels;
int channels; /* required number of channels */
int samplerate; /* required sample rate */
char *audiodev; /* required device */
char *caudiodev, *paudiodev; /* required device */
double spl_deviation; /* how much deviation is one sample step */
#ifdef HAVE_MOBILE
double paging_phaseshift; /* phase to shift every sample */
@@ -127,22 +127,14 @@ static int dev_open(sound_t *sound)
{
int rc, rc_rec, rc_play;
rc_play = snd_pcm_open(&sound->phandle, sound->audiodev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
rc_rec = snd_pcm_open(&sound->chandle, sound->audiodev, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
if (rc_play < 0 && rc_rec < 0) {
LOGP(DSOUND, LOGL_ERROR, "Failed to open '%s'! (%s)\n", sound->audiodev, snd_strerror(rc_play));
LOGP(DSOUND, LOGL_ERROR, "Run 'aplay -l' to get a list of available cards and devices.\n");
LOGP(DSOUND, LOGL_ERROR, "Then use 'hw:<card>:<device>' for audio device.\n");
return rc_play;
}
if (rc_play < 0) {
LOGP(DSOUND, LOGL_ERROR, "Failed to open '%s' for playback! (%s) Please select a device that supports both direction audio.\n", sound->audiodev, snd_strerror(rc_play));
return rc_play;
}
if (rc_rec < 0) {
LOGP(DSOUND, LOGL_ERROR, "Failed to open '%s' for capture! (%s) Please select a device that supports both direction audio.\n", sound->audiodev, snd_strerror(rc_rec));
return rc_rec;
}
rc_play = snd_pcm_open(&sound->phandle, sound->paudiodev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
rc_rec = snd_pcm_open(&sound->chandle, sound->caudiodev, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
if (rc_play < 0)
LOGP(DSOUND, LOGL_ERROR, "Failed to open '%s' for playback! (%s) Please select a device that supports playing audio.\n", sound->paudiodev, snd_strerror(rc_play));
if (rc_rec < 0)
LOGP(DSOUND, LOGL_ERROR, "Failed to open '%s' for capture! (%s) Please select a device that supports capturing audio.\n", sound->caudiodev, snd_strerror(rc_rec));
if (rc_play < 0 || rc_rec < 0)
return (rc_play < 0) ? rc_play : rc_rec;
rc = set_hw_params(sound->phandle, sound->samplerate, &sound->pchannels);
if (rc < 0) {
@@ -193,6 +185,7 @@ void *sound_open(const char *audiodev, double __attribute__((unused)) *tx_freque
{
sound_t *sound;
const char *env;
char *p;
int rc;
if (channels < 1 || channels > 2) {
@@ -206,7 +199,13 @@ void *sound_open(const char *audiodev, double __attribute__((unused)) *tx_freque
return NULL;
}
sound->audiodev = strdup(audiodev); // is feed when closed
sound->paudiodev = strdup(audiodev); // is feed when closed
if ((p = strchr(sound->paudiodev, '/'))) {
*p++ = '\0';
sound->caudiodev = p;
} else {
sound->caudiodev = sound->paudiodev;
}
sound->channels = channels;
sound->samplerate = samplerate;
sound->spl_deviation = max_deviation / 32767.0;
@@ -261,7 +260,7 @@ void sound_close(void *inst)
sound_t *sound = (sound_t *)inst;
dev_close(sound);
free(sound->audiodev);
free(sound->paudiodev);
free(sound);
}