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Enhanced code (use_fd)

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This commit is contained in:
Jaroslav Kysela 2001-05-14 14:26:10 +00:00
parent 290c2ed8fc
commit 22c689135e
1 changed files with 21 additions and 2 deletions
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23
src/pcm/pcm_surr.c
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@ -53,6 +53,8 @@ struct _snd_pcm_surround {
unsigned int channels; /* count of channels (4 or 6) */
int pcms; /* count of PCM channels */
int use_fd; /* use this FD for the direct access */
int use_fd_four;
int use_fd_six;
snd_pcm_t *pcm[3]; /* up to three PCM stereo streams */
int use_route: 1; /* route is used */
int route[6]; /* channel route */
@ -652,13 +654,25 @@ int load_surround_config(snd_ctl_t *ctl, snd_pcm_surround_t *surr,
} else if (isdigit(*str) && atoi(str) != 0)
surr->caps |= SURR_CAP_6CH;
}
if (snd_config_search(n, "use_fd", &n1) >= 0) {
if (snd_config_search(n, "use_fd_four", &n1) >= 0) {
unsigned long i;
if ((err = snd_config_get_integer(n1, &i)) < 0) {
SNDERR("Invalid type for %s", id);
goto __error;
} else if (i <= 1)
surr->use_fd_four = i;
else {
SNDERR("Invalid range for use_fd (0-2): %li", i);
goto __error;
}
}
if (snd_config_search(n, "use_fd_six", &n1) >= 0) {
unsigned long i;
if ((err = snd_config_get_integer(n1, &i)) < 0) {
SNDERR("Invalid type for %s", id);
goto __error;
} else if (i <= 2)
surr->use_fd = i;
surr->use_fd_six = i;
else {
SNDERR("Invalid range for use_fd (0-2): %li", i);
goto __error;
@ -725,6 +739,7 @@ int load_surround_config(snd_ctl_t *ctl, snd_pcm_surround_t *surr,
if (snd_config_search(n, "open_single", &n1) >= 0) {
snd_config_iterator_t i, next;
int device = 0, subdevice = -1;
surr->use_fd = 0;
if (snd_config_get_type(n1) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("compound type expected");
goto __error;
@ -818,12 +833,14 @@ int load_surround_config(snd_ctl_t *ctl, snd_pcm_surround_t *surr,
}
switch (stype) {
case SND_PCM_SURROUND_40:
surr->use_fd = surr->use_fd_four;
if (!(surr->caps & SURR_CAP_4CH)) {
err = -ENODEV;
goto __error;
}
break;
case SND_PCM_SURROUND_51:
surr->use_fd = surr->use_fd_six;
if (!(surr->caps & SURR_CAP_6CH)) {
err = -ENODEV;
goto __error;
@ -834,6 +851,8 @@ int load_surround_config(snd_ctl_t *ctl, snd_pcm_surround_t *surr,
SNDERR("surround single stream open error %i,%i,%i,%i,%i,%i,%i: %s", surr->card, device[0], subdevice[0], device[1], subdevice[1], device[2], subdevice[2], snd_strerror(err));
goto __error;
}
if (surr->pcm[surr->use_fd] == NULL)
surr->use_fd = 0;
opened = 1;
}
if (opened == 0) {