static int alsa_mixer_set_muted(snd_mixer_elem_t *elem, gboolean muted) {
long val, min, max;
/**if switch is available, get switch status directly*/
if(snd_mixer_selem_has_playback_switch(elem)) {
snd_mixer_selem_set_playback_switch(elem, 0, !muted);
snd_mixer_selem_set_playback_switch(elem, 1, !muted);
return 0;
} else if(snd_mixer_selem_has_capture_switch(elem)) {
snd_mixer_selem_set_capture_switch(elem, 0, !muted);
snd_mixer_selem_set_capture_switch(elem, 1, !muted);
return 0;
}
if(snd_mixer_selem_has_playback_volume(elem)) {
snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
val = muted ? min : max;
snd_mixer_selem_set_playback_volume(elem, 0, val);
snd_mixer_selem_set_playback_volume(elem, 1, val);
return 0;
} else if(snd_mixer_selem_has_capture_volume(elem)) {
snd_mixer_selem_get_capture_volume_range(elem, &min, &max);
val = muted ? min : max;
snd_mixer_selem_set_capture_volume(elem, 0, val);
snd_mixer_selem_set_capture_volume(elem, 1, val);
return 0;
}
return -1;
}
void AlsaMixer::unmute_volume()
{
if (!snd_mixer_selem_has_playback_switch(this->active_elem))
{
this->set_volume(this->muted_volume);
}
else
{
snd_mixer_handle_events(this->handle);
// TODO: write actual playback switch logic
snd_mixer_selem_set_playback_switch(this->active_elem, LEFT, 1);
snd_mixer_selem_set_playback_switch(this->active_elem, RIGHT, 1);
}
}
static void _set_switch(snd_mixer_elem_t *elem, int playback, int n, int val)
{
if (playback)
snd_mixer_selem_set_playback_switch(elem, n, val);
else
snd_mixer_selem_set_capture_switch(elem, n, !val);
}
/**
* Mutes/unmutes the sound.
*/
void MMSAudioCtrl::mute() {
if (isMute()) {
/* switch to on */
if(isSwitchable) {
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, 1);
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, 1);
} else {
setVolume(this->volume);
}
} else {
/* set mute */
if(isSwitchable) {
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, 0);
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, 0);
} else {
snd_mixer_selem_set_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT, 0);
snd_mixer_selem_set_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, 0);
/* set mute to on */
this->muteFlag = true;
}
}
}
static void
brightside_volume_alsa_set_mute (BrightsideVolume *vol, gboolean val)
{
BrightsideVolumeAlsa *self = (BrightsideVolumeAlsa *) vol;
snd_mixer_selem_set_playback_switch(self->_priv->elem,
SND_MIXER_SCHN_FRONT_LEFT, !val);
if (val == TRUE) {
self->_priv->saved_volume = brightside_volume_alsa_get_volume (vol);
brightside_volume_alsa_set_volume (vol, 0);
} else if (self->_priv->saved_volume != -1) {
brightside_volume_alsa_set_volume (vol,
self->_priv->saved_volume);
}
}
static void
brightside_volume_alsa_set_mute_fade (BrightsideVolume *vol, gboolean val,
guint duration)
{
BrightsideVolumeAlsa *self = (BrightsideVolumeAlsa *) vol;
snd_mixer_selem_set_playback_switch(self->_priv->elem,
SND_MIXER_SCHN_FRONT_LEFT, !val);
if (!self->_priv->fading) {
if (val == TRUE)
self->_priv->saved_volume =
brightside_volume_alsa_get_volume (vol);
if (self->_priv->saved_volume > 0) {
g_timeout_add (duration / self->_priv->saved_volume,
brightside_volume_alsa_mute_fade_cb, self);
self->_priv->fading = TRUE;
}
}
}
/*
* Class: org_tritonus_lowlevel_alsa_AlsaMixerElement
* Method: setPlaybackSwitch
* Signature: (IZ)V
*/
JNIEXPORT void JNICALL
Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_setPlaybackSwitch
(JNIEnv* env, jobject obj, jint nChannelType, jboolean bValue)
{
snd_mixer_elem_t* handle;
int nReturn;
if (debug_flag) {
(void) fprintf(debug_file, "Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_setPlaybackSwitch(): begin\n");
}
handle = getHandle(env, obj);
nReturn = snd_mixer_selem_set_playback_switch(handle, (snd_mixer_selem_channel_id_t) nChannelType, bValue);
if (nReturn < 0)
{
throwRuntimeException(env, snd_strerror(nReturn));
}
if (debug_flag) {
(void) fprintf(debug_file, "Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_setPlaybackSwitch(): end\n");
}
}
/* mute: 0 -> mute, 1 -> unmute */
void sound_mixer_mute(const char *mixer, MUTEST mute)
{
int i;
snd_mixer_t *handle = NULL;
snd_mixer_elem_t *elem = NULL;
elem = sound_get_elem(mixer, &handle);
if (!elem)
return;
for (i = 0; i <= SND_MIXER_SCHN_LAST; i++) {
if (snd_mixer_selem_has_playback_channel(elem, i) &&
snd_mixer_selem_has_playback_switch(elem))
snd_mixer_selem_set_playback_switch(elem, i, mute);
else if (snd_mixer_selem_has_capture_channel(elem, i) &&
snd_mixer_selem_has_capture_switch(elem))
snd_mixer_selem_set_capture_switch(elem, i, mute);
}
snd_mixer_close(handle);
}
bool AlsaMixer::SwitchChannel( const char* channel, bool value )
{
bool success = false;
snd_mixer_elem_t *elem;
snd_mixer_selem_id_t *sid;
snd_mixer_selem_id_alloca(&sid);
snd_mixer_selem_id_set_index( sid, 0);
snd_mixer_selem_id_set_name( sid, channel);
elem = snd_mixer_find_selem(_handle, sid);
if (!elem) {
LOG( Logger::LOG_ERROR, "Unable to find simple control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
goto end;
}
if( snd_mixer_selem_has_playback_switch(elem) )
{
for (int chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) {
if (snd_mixer_selem_set_playback_switch(elem, (snd_mixer_selem_channel_id_t)chn, value ? 1 : 0 ) >= 0)
{
success = true;
}
}
}else if( snd_mixer_selem_has_capture_switch(elem) )
{
for (int chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) {
if (snd_mixer_selem_set_capture_switch(elem, (snd_mixer_selem_channel_id_t)chn, value ? 1 : 0 ) >= 0)
{
success = true;
}
}
}
if( !success )
{
LOG( Logger::LOG_ERROR, "Error setting control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
}
end:
return success;
}
static int control(struct ao *ao, enum aocontrol cmd, void *arg)
{
struct priv *p = ao->priv;
snd_mixer_t *handle = NULL;
switch (cmd) {
case AOCONTROL_GET_MUTE:
case AOCONTROL_SET_MUTE:
case AOCONTROL_GET_VOLUME:
case AOCONTROL_SET_VOLUME:
{
int err;
snd_mixer_elem_t *elem;
snd_mixer_selem_id_t *sid;
long pmin, pmax;
long get_vol, set_vol;
float f_multi;
if (!af_fmt_is_pcm(ao->format))
return CONTROL_FALSE;
snd_mixer_selem_id_alloca(&sid);
snd_mixer_selem_id_set_index(sid, p->cfg_mixer_index);
snd_mixer_selem_id_set_name(sid, p->cfg_mixer_name);
err = snd_mixer_open(&handle, 0);
CHECK_ALSA_ERROR("Mixer open error");
err = snd_mixer_attach(handle, p->cfg_mixer_device);
CHECK_ALSA_ERROR("Mixer attach error");
err = snd_mixer_selem_register(handle, NULL, NULL);
CHECK_ALSA_ERROR("Mixer register error");
err = snd_mixer_load(handle);
CHECK_ALSA_ERROR("Mixer load error");
elem = snd_mixer_find_selem(handle, sid);
if (!elem) {
MP_VERBOSE(ao, "Unable to find simple control '%s',%i.\n",
snd_mixer_selem_id_get_name(sid),
snd_mixer_selem_id_get_index(sid));
goto alsa_error;
}
snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
f_multi = (100 / (float)(pmax - pmin));
switch (cmd) {
case AOCONTROL_SET_VOLUME: {
ao_control_vol_t *vol = arg;
set_vol = vol->left / f_multi + pmin + 0.5;
err = snd_mixer_selem_set_playback_volume
(elem, SND_MIXER_SCHN_FRONT_LEFT, set_vol);
CHECK_ALSA_ERROR("Error setting left channel");
MP_DBG(ao, "left=%li, ", set_vol);
set_vol = vol->right / f_multi + pmin + 0.5;
err = snd_mixer_selem_set_playback_volume
(elem, SND_MIXER_SCHN_FRONT_RIGHT, set_vol);
CHECK_ALSA_ERROR("Error setting right channel");
MP_DBG(ao, "right=%li, pmin=%li, pmax=%li, mult=%f\n",
set_vol, pmin, pmax, f_multi);
break;
}
case AOCONTROL_GET_VOLUME: {
ao_control_vol_t *vol = arg;
snd_mixer_selem_get_playback_volume
(elem, SND_MIXER_SCHN_FRONT_LEFT, &get_vol);
vol->left = (get_vol - pmin) * f_multi;
snd_mixer_selem_get_playback_volume
(elem, SND_MIXER_SCHN_FRONT_RIGHT, &get_vol);
vol->right = (get_vol - pmin) * f_multi;
MP_DBG(ao, "left=%f, right=%f\n", vol->left, vol->right);
break;
}
case AOCONTROL_SET_MUTE: {
bool *mute = arg;
if (!snd_mixer_selem_has_playback_switch(elem))
goto alsa_error;
if (!snd_mixer_selem_has_playback_switch_joined(elem)) {
snd_mixer_selem_set_playback_switch
(elem, SND_MIXER_SCHN_FRONT_RIGHT, !*mute);
}
snd_mixer_selem_set_playback_switch
(elem, SND_MIXER_SCHN_FRONT_LEFT, !*mute);
break;
}
case AOCONTROL_GET_MUTE: {
bool *mute = arg;
if (!snd_mixer_selem_has_playback_switch(elem))
goto alsa_error;
int tmp = 1;
snd_mixer_selem_get_playback_switch
(elem, SND_MIXER_SCHN_FRONT_LEFT, &tmp);
*mute = !tmp;
if (!snd_mixer_selem_has_playback_switch_joined(elem)) {
snd_mixer_selem_get_playback_switch
(elem, SND_MIXER_SCHN_FRONT_RIGHT, &tmp);
*mute &= !tmp;
}
break;
}
}
snd_mixer_close(handle);
return CONTROL_OK;
}
} //end switch
return CONTROL_UNKNOWN;
alsa_error:
if (handle)
snd_mixer_close(handle);
return CONTROL_ERROR;
}
/* to set/get/query special features/parameters */
static int control(int cmd, void *arg)
{
switch(cmd) {
case AOCONTROL_QUERY_FORMAT:
return CONTROL_TRUE;
case AOCONTROL_GET_VOLUME:
case AOCONTROL_SET_VOLUME:
{
ao_control_vol_t *vol = (ao_control_vol_t *)arg;
int err;
snd_mixer_t *handle;
snd_mixer_elem_t *elem;
snd_mixer_selem_id_t *sid;
char *mix_name = "PCM";
char *card = "default";
int mix_index = 0;
long pmin, pmax;
long get_vol, set_vol;
float f_multi;
if(AF_FORMAT_IS_IEC61937(ao_data.format))
return CONTROL_TRUE;
if(mixer_channel) {
char *test_mix_index;
mix_name = strdup(mixer_channel);
if ((test_mix_index = strchr(mix_name, ','))){
*test_mix_index = 0;
test_mix_index++;
mix_index = strtol(test_mix_index, &test_mix_index, 0);
if (*test_mix_index){
mp_msg(MSGT_AO,MSGL_ERR,
MSGTR_AO_ALSA_InvalidMixerIndexDefaultingToZero);
mix_index = 0 ;
}
}
}
if(mixer_device) card = mixer_device;
//allocate simple id
snd_mixer_selem_id_alloca(&sid);
//sets simple-mixer index and name
snd_mixer_selem_id_set_index(sid, mix_index);
snd_mixer_selem_id_set_name(sid, mix_name);
if (mixer_channel) {
free(mix_name);
mix_name = NULL;
}
if ((err = snd_mixer_open(&handle, 0)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_MixerOpenError, snd_strerror(err));
return CONTROL_ERROR;
}
if ((err = snd_mixer_attach(handle, card)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_MixerAttachError,
card, snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
if ((err = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_MixerRegisterError, snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
err = snd_mixer_load(handle);
if (err < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_MixerLoadError, snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
elem = snd_mixer_find_selem(handle, sid);
if (!elem) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_UnableToFindSimpleControl,
snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
snd_mixer_selem_get_playback_volume_range(elem,&pmin,&pmax);
f_multi = (100 / (float)(pmax - pmin));
if (cmd == AOCONTROL_SET_VOLUME) {
set_vol = vol->left / f_multi + pmin + 0.5;
//setting channels
if ((err = snd_mixer_selem_set_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT, set_vol)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_ErrorSettingLeftChannel,
snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
mp_msg(MSGT_AO,MSGL_DBG2,"left=%li, ", set_vol);
set_vol = vol->right / f_multi + pmin + 0.5;
if ((err = snd_mixer_selem_set_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, set_vol)) < 0) {
mp_msg(MSGT_AO,MSGL_ERR,MSGTR_AO_ALSA_ErrorSettingRightChannel,
snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
}
mp_msg(MSGT_AO,MSGL_DBG2,"right=%li, pmin=%li, pmax=%li, mult=%f\n",
set_vol, pmin, pmax, f_multi);
if (snd_mixer_selem_has_playback_switch(elem)) {
int lmute = (vol->left == 0.0);
int rmute = (vol->right == 0.0);
if (snd_mixer_selem_has_playback_switch_joined(elem)) {
lmute = rmute = lmute && rmute;
} else {
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, !rmute);
}
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, !lmute);
}
}
else {
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT, &get_vol);
vol->left = (get_vol - pmin) * f_multi;
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, &get_vol);
vol->right = (get_vol - pmin) * f_multi;
mp_msg(MSGT_AO,MSGL_DBG2,"left=%f, right=%f\n",vol->left,vol->right);
}
snd_mixer_close(handle);
return CONTROL_OK;
}
} //end switch
return CONTROL_UNKNOWN;
}
void MixerToggle::setSndState(int state)
{
snd_mixer_selem_set_playback_switch
(snd_mix, SND_MIXER_SCHN_FRONT_LEFT, state == Qt::Checked ? 1 : 0);
}
static void alsa_volume_mixer(double volume)
{
snd_mixer_t* handle;
snd_mixer_elem_t* elem;
snd_mixer_selem_id_t* sid;
unsigned c;
long pmin, pmax;
long v;
int r;
snd_mixer_selem_id_alloca(&sid);
log_std(("sound:alsa: soundb_alsa_volume(volume:%g)\n", (double)volume));
snd_mixer_selem_id_set_name(sid, "Master");
r = snd_mixer_open(&handle, 0);
if (r < 0) {
log_std(("ERROR:sound:alsa: Mixer open error: %s\n", snd_strerror(r)));
goto err;
}
r = snd_mixer_attach(handle, alsa_option.mixer_buffer);
if (r < 0) {
log_std(("ERROR:sound:alsa: Mixer attach error: %s\n", snd_strerror(r)));
goto err_close;
}
if ((r = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
log_std(("ERROR:sound:alsa: Mixer register error: %s\n", snd_strerror(r)));
goto err_close;
}
r = snd_mixer_load(handle);
if (r < 0) {
log_std(("ERROR:sound:alsa: Mixer load error: %s\n", snd_strerror(r)));
goto err_close;
}
elem = snd_mixer_find_selem(handle, sid);
if (!elem) {
log_std(("ERROR:sound:alsa: Unable to find simple control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid)));
goto err_close;
}
if (volume > 0) {
if (snd_mixer_selem_has_playback_switch(elem)) {
log_std(("sound:alsa: enable playback\n"));
for(c=0;c<=SND_MIXER_SCHN_LAST;++c) {
snd_mixer_selem_set_playback_switch(elem, c, 1);
}
} else {
log_std(("sound:alsa: skip enable playback\n"));
}
if (snd_mixer_selem_has_playback_volume(elem)) {
log_std(("sound:alsa: set playback volume\n"));
snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
v = pmin + (pmax - pmin) * volume + 0.5;
if (v < pmin)
v = pmin;
if (v > pmax)
v = pmax;
log_std(("sound:alsa: min:%d, max:%d, set:%d\n", (int)pmin, (int)pmax, (int)v));
for(c=0;c<=SND_MIXER_SCHN_LAST;++c) {
snd_mixer_selem_set_playback_volume(elem, c, v);
}
} else {
log_std(("sound:alsa: skip set playback volume\n"));
}
} else {
if (snd_mixer_selem_has_playback_switch(elem)) {
log_std(("sound:alsa: disable playback\n"));
for(c=0;c<=SND_MIXER_SCHN_LAST;++c) {
snd_mixer_selem_set_playback_switch(elem, c, 0);
}
} else {
log_std(("sound:alsa: skip disable playback\n"));
}
}
snd_mixer_close(handle);
return;
err_close:
snd_mixer_close(handle);
err:
return;
}
