void mixerGuiAlsaMix::cardChanged( int card )
{
#ifdef HAVE_ALSA
channelSelect->clear();
// get the cards channels
snd_mixer_t* alsaDev;
snd_mixer_open( &alsaDev, 0);
char device[16];
sprintf(device, "hw:%i", card);
snd_mixer_attach(alsaDev, device );
snd_mixer_selem_register(alsaDev, NULL, NULL);
snd_mixer_load(alsaDev); //load up the mixer
snd_mixer_elem_t* mixerElem = snd_mixer_first_elem(alsaDev);
while( mixerElem != snd_mixer_last_elem(alsaDev) )
{
if(snd_mixer_selem_has_playback_volume(mixerElem) || snd_mixer_selem_has_capture_volume(mixerElem))
channelSelect->addItem( QString( snd_mixer_selem_get_name(mixerElem)), QVariant( snd_mixer_selem_get_name(mixerElem)) );
mixerElem=snd_mixer_elem_next( mixerElem );
}
for(int i=0; i<= channelSelect->count(); i++ )
if( channelSelect->itemData(i) == settings["alsa_channel"].toString() )
channelSelect->setCurrentIndex( i );
#endif
}
static snd_mixer_elem_t *
gst_alsa_mixer_find_master_mixer (GstAlsaMixer * mixer, snd_mixer_t * handle)
{
snd_mixer_elem_t *element;
gint i, count;
count = snd_mixer_get_count (handle);
/* Check if we have a playback mixer labelled as 'Master' */
element = snd_mixer_first_elem (handle);
for (i = 0; i < count; i++) {
if (snd_mixer_selem_has_playback_volume (element) &&
strcmp (snd_mixer_selem_get_name (element), "Master") == 0) {
return element;
}
element = snd_mixer_elem_next (element);
}
/* If not, check if we have a playback mixer labelled as 'Front' */
element = snd_mixer_first_elem (handle);
for (i = 0; i < count; i++) {
if (snd_mixer_selem_has_playback_volume (element) &&
strcmp (snd_mixer_selem_get_name (element), "Front") == 0) {
return element;
}
element = snd_mixer_elem_next (element);
}
/* If not, check if we have a playback mixer labelled as 'PCM' */
element = snd_mixer_first_elem (handle);
for (i = 0; i < count; i++) {
if (snd_mixer_selem_has_playback_volume (element) &&
strcmp (snd_mixer_selem_get_name (element), "PCM") == 0) {
return element;
}
element = snd_mixer_elem_next (element);
}
/* If not, check if we have a playback mixer with both volume and switch */
element = snd_mixer_first_elem (handle);
for (i = 0; i < count; i++) {
if (snd_mixer_selem_has_playback_volume (element) &&
snd_mixer_selem_has_playback_switch (element)) {
return element;
}
element = snd_mixer_elem_next (element);
}
/* If not, take any playback mixer with a volume control */
element = snd_mixer_first_elem (handle);
for (i = 0; i < count; i++) {
if (snd_mixer_selem_has_playback_volume (element)) {
return element;
}
element = snd_mixer_elem_next (element);
}
/* Looks like we're out of luck ... */
return NULL;
}
int
sa_stream_set_volume_abs(sa_stream_t *s, float vol) {
snd_mixer_t* mixer = 0;
snd_mixer_elem_t* elem = 0;
if (s == NULL || s->output_unit == NULL) {
return SA_ERROR_NO_INIT;
}
if (snd_mixer_open(&mixer, 0) < 0) {
return SA_ERROR_SYSTEM;
}
if (snd_mixer_attach(mixer, "default") < 0) {
snd_mixer_close(mixer);
return SA_ERROR_SYSTEM;
}
if (snd_mixer_selem_register(mixer, NULL, NULL) < 0) {
snd_mixer_close(mixer);
return SA_ERROR_SYSTEM;
}
if (snd_mixer_load(mixer) < 0) {
snd_mixer_close(mixer);
return SA_ERROR_SYSTEM;
}
#if 0
snd_mixer_elem_t* elem = 0;
for (elem = snd_mixer_first_elem(mixer); elem != NULL; elem = snd_mixer_elem_next(elem)) {
if (snd_mixer_selem_has_playback_volume(elem)) {
printf("Playback %s\n", snd_mixer_selem_get_name(elem));
}
else {
printf("No Playback: %s\n", snd_mixer_selem_get_name(elem));
}
}
#endif
elem = snd_mixer_first_elem(mixer);
if (elem && snd_mixer_selem_has_playback_volume(elem)) {
long min = 0;
long max = 0;
if (snd_mixer_selem_get_playback_volume_range(elem, &min, &max) >= 0) {
snd_mixer_selem_set_playback_volume_all(elem, (max-min)*vol + min);
}
}
snd_mixer_close(mixer);
return SA_SUCCESS;
}
/* Gets target sound profile from TOGGLE_SOUND_PROFILES array */
struct sound_profile* get_target_sound_profile(struct sound_profile* current)
{
struct sound_profile* target = NULL;
for (int i = 0; i < TOGGLE_SOUND_PROFILES_SIZE; ++i) {
snd_mixer_elem_t* e = TOGGLE_SOUND_PROFILES[i]->mixer_element;
if (strcasecmp(snd_mixer_selem_get_name(current->mixer_element),
snd_mixer_selem_get_name(e)) == 0) {
target = i+1 < TOGGLE_SOUND_PROFILES_SIZE ? TOGGLE_SOUND_PROFILES[i+1] : TOGGLE_SOUND_PROFILES[0];
}
}
assert(target);
return target;
}
static enum MixerCode alsaMixerSelectCard(struct MixerSystem* system, int mixerId) {
enum MixerCode code;
snd_mixer_elem_t* mixerElem = NULL;
AlsaMixerCard* card = (AlsaMixerCard*)system->active;
if ( !card ) {
if ( card == system->mixerCard->pElement[mixerId] ) {
return MIXER_CODE_OK;
}
alsaMixerCardClose(system);
}
code = commonMixerSelectCard(system, mixerId);
if ( code != MIXER_CODE_OK ) {
GOC_DEBUG("Cannot select card by commonMixerSelectCard");
return code;
}
card = (AlsaMixerCard*)system->active;
GOC_CHEOP_DEBUG(snd_mixer_open( &card->sndmixer, 0 ) == 0, return MIXER_CODE_CANNOT_OPEN_CARD);
GOC_CHEOP_DEBUG(snd_mixer_attach( card->sndmixer, card->physicalName ) == 0, return MIXER_CODE_CANNOT_OPEN_CARD);
GOC_CHEOP_DEBUG(snd_mixer_selem_register( card->sndmixer, NULL, NULL ) == 0, return MIXER_CODE_CANNOT_OPEN_CARD);
GOC_CHEOP_DEBUG(snd_mixer_load( card->sndmixer ) == 0, return MIXER_CODE_CANNOT_OPEN_CARD);
mixerElem = snd_mixer_first_elem( card->sndmixer );
while ( mixerElem ) {
AlsaMixerElement* pMixerElement = alsaMixerElementAlloc();
for (int channel = 0; channel <= SND_MIXER_SCHN_LAST; channel++ ) {
if ( snd_mixer_selem_has_playback_channel(mixerElem, channel)
&& snd_mixer_selem_get_playback_volume_range(mixerElem, &pMixerElement->rangemin, &pMixerElement->rangemax) == 0
&& snd_mixer_selem_get_playback_volume(mixerElem, channel, &pMixerElement->volume) == 0 ) {
pMixerElement->name = goc_stringCopy(NULL, snd_mixer_selem_get_name(mixerElem));
pMixerElement->type = MIXER_ELEMENT_PLAYBACK;
pMixerElement->sndelement = mixerElem;
card->mixerElement = goc_arrayAdd( card->mixerElement, pMixerElement );
break;
} else if ( snd_mixer_selem_has_capture_channel(mixerElem, channel)
&& snd_mixer_selem_get_capture_volume_range(mixerElem, &pMixerElement->rangemin, &pMixerElement->rangemax) == 0
&& snd_mixer_selem_get_capture_volume(mixerElem, channel, &pMixerElement->volume) == 0 ) {
pMixerElement->name = goc_stringCopy(NULL, snd_mixer_selem_get_name(mixerElem));
pMixerElement->type = MIXER_ELEMENT_CAPTURE;
pMixerElement->sndelement = mixerElem;
card->mixerElement = goc_arrayAdd( card->mixerElement, pMixerElement );
break;
}
}
mixerElem = snd_mixer_elem_next( mixerElem );
}
return MIXER_CODE_OK;
}
void
gam_toggle_set_state (GamToggle *gam_toggle, gboolean state)
{
GamTogglePrivate *priv;
const gboolean internal_state = gam_toggle_get_state (gam_toggle);
int err;
priv = GAM_TOGGLE_GET_PRIVATE (gam_toggle);
if (state == internal_state) return;
if (snd_mixer_selem_has_playback_switch (priv->elem)) {
err = snd_mixer_selem_set_playback_switch_all (priv->elem, state);
} else if (snd_mixer_selem_has_capture_switch (priv->elem)) {
err = snd_mixer_selem_set_capture_switch_all (priv->elem, state);
} else {
g_warning ("%s (). No idea what to do for mixer element \"%s\"!",
__FUNCTION__, snd_mixer_selem_get_name (priv->elem));
err = 0;
}
if (err)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (gam_toggle),
internal_state);
}
static void
gst_alsa_mixer_track_update_alsa_capabilities (GstAlsaMixerTrack * alsa_track)
{
alsa_track->alsa_flags = 0;
alsa_track->capture_group = -1;
if (snd_mixer_selem_has_common_volume (alsa_track->element))
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_VOLUME;
if (snd_mixer_selem_has_playback_volume (alsa_track->element))
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_PVOLUME;
if (snd_mixer_selem_has_capture_volume (alsa_track->element))
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_CVOLUME;
if (snd_mixer_selem_has_common_switch (alsa_track->element))
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_SWITCH;
if (snd_mixer_selem_has_playback_switch (alsa_track->element))
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_PSWITCH;
if (snd_mixer_selem_has_capture_switch (alsa_track->element)) {
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_CSWITCH;
if (snd_mixer_selem_has_capture_switch_exclusive (alsa_track->element)) {
alsa_track->alsa_flags |= GST_ALSA_MIXER_TRACK_CSWITCH_EXCL;
alsa_track->capture_group =
snd_mixer_selem_get_capture_group (alsa_track->element);
}
}
GST_LOG ("[%s] alsa_flags=0x%08x, capture_group=%d",
snd_mixer_selem_get_name (alsa_track->element),
alsa_track->alsa_flags, alsa_track->capture_group);
}
void
moko_alsa_volume_control_set_element_from_name (MokoAlsaVolumeControl *control,
const gchar *name)
{
MokoAlsaVolumeControlPrivate *priv =
ALSA_VOLUME_CONTROL_PRIVATE (control);
if (!priv->device) return;
detach_mixer (control);
if (!name) {
moko_alsa_volume_control_set_element (control, NULL);
return;
}
open_mixer (control);
if ((snd_mixer_attach (priv->mixer_handle, priv->device) == 0) &&
(snd_mixer_selem_register (priv->mixer_handle, NULL, NULL) == 0) &&
(snd_mixer_load (priv->mixer_handle) == 0)) {
snd_mixer_elem_t *elem;
elem = snd_mixer_first_elem (priv->mixer_handle);
while (elem) {
const char *elem_name = snd_mixer_selem_get_name (elem);
if (strcmp (elem_name, name) == 0)
break;
elem = snd_mixer_elem_next (elem);
}
if (!elem) {
snd_mixer_detach (priv->mixer_handle, priv->device);
close_mixer (control);
g_warning ("Mixer element '%s' not found", name);
attach_mixer (control);
} else {
snd_mixer_selem_id_t *id;
if (snd_mixer_selem_id_malloc (&id) != 0) {
g_warning ("Unable to allocate element id");
snd_mixer_detach (
priv->mixer_handle, priv->device);
close_mixer (control);
} else {
snd_mixer_selem_get_id (elem, id);
snd_mixer_detach (
priv->mixer_handle, priv->device);
close_mixer (control);
g_debug ("Setting element ID");
moko_alsa_volume_control_set_element (
control, id);
snd_mixer_selem_id_free (id);
}
}
} else
g_warning ("Unable to open mixer on card '%s'", priv->device);
}
static int initialize_mixer_device(struct audio_info_struct *ai, char *error)
{
int sts;
snd_mixer_t *mixer;
char *mixerdev = "default";
const char *elemnam;
snd_mixer_elem_t *mixerelem;
sts = snd_mixer_open(&mixer, 0);
if (sts) {
if (error) {
sprintf(error, "snd_mixer_open failed; %d\n", sts);
}
return 1;
}
if (mixer) {
sts = snd_mixer_attach(mixer, mixerdev);
if (sts) {
if (error) {
sprintf(error, "snd_mixer_attach: failed; %d\n", sts);
}
return 1;
}
sts = snd_mixer_selem_register(mixer, NULL, NULL);
if (sts) {
if (error) {
sprintf(error, "snd_mixer_selem_register: failed; %d\n", sts);
}
return 1;
}
sts = snd_mixer_load(mixer);
if (sts) {
if (error) {
sprintf(error, "snd_mixer_selem_register: failed; %d\n", sts);
}
return 1;
}
mixerelem = snd_mixer_first_elem(mixer);
snd_mixer_set_callback(mixer, mixer_callback_func);
while (mixerelem) {
elemnam = snd_mixer_selem_get_name(mixerelem);
if (strcasecmp(elemnam, "Master") == 0) {
ai->vh = mixerelem;
return 0;
}
mixerelem = snd_mixer_elem_next(mixerelem);
}
}
return 1;
}
static void set_volume(AudioCapture *capture, int level) {
snd_mixer_t *mixer=NULL;
int err;
err=snd_mixer_open(&mixer,0);
if(err < 0) {
fprintf(stderr, "Could not open alsa mixer: %s\r\n",snd_strerror(err));
exit(1);
}
char hw_id[100];
snprintf(hw_id, sizeof(hw_id), "hw:%d", capture->pcm_id);
if ((err = snd_mixer_attach (mixer, hw_id)) < 0){
fprintf(stderr, "Could not attach mixer to card(%s): %s\r\n", hw_id, snd_strerror(err));
snd_mixer_close(mixer);
exit(1);
}
if ((err = snd_mixer_selem_register (mixer, NULL, NULL)) < 0){
fprintf(stderr, "snd_mixer_selem_register: %s\r\n",snd_strerror(err));
snd_mixer_close(mixer);
exit(1);
}
if ((err = snd_mixer_load (mixer)) < 0){
fprintf(stderr, "snd_mixer_load: %s\r\n",snd_strerror(err));
snd_mixer_close(mixer);
exit(1);
}
snd_mixer_elem_t *elem;
elem = snd_mixer_first_elem(mixer);
while(elem) {
const char *elemname = snd_mixer_selem_get_name(elem);
if(strcmp(elemname, "Capture") && strcmp(elemname, "Mic")) {
fprintf(stderr, "Skip setting volume for %s\r\n", elemname);
elem=snd_mixer_elem_next(elem);
continue;
}
if (snd_mixer_selem_has_capture_volume(elem)){
fprintf(stderr, "Set volume for %s\r\n", elemname);
long sndMixerPMin;
long sndMixerPMax;
long newvol;
snd_mixer_selem_get_playback_volume_range(elem, &sndMixerPMin, &sndMixerPMax);
newvol=(((sndMixerPMax-sndMixerPMin)*level)/100)+sndMixerPMin;
snd_mixer_selem_set_capture_volume_all(elem,newvol);
elem=snd_mixer_elem_next(elem);
} else {
fprintf(stderr, "Can't set capture volume\r\n");
exit(1);
}
}
}
const gchar *
gam_toggle_get_name (GamToggle *gam_toggle)
{
GamTogglePrivate *priv;
g_return_val_if_fail (GAM_IS_TOGGLE (gam_toggle), NULL);
priv = GAM_TOGGLE_GET_PRIVATE (gam_toggle);
return snd_mixer_selem_get_name (priv->elem);
}
void asound_setup(const gchar * card, const gchar * channel,
void (*volume_changed)(int,gboolean))
{
// Make sure (for now) that the setup function only gets called once
static int asound_setup_called = 0;
assert(asound_setup_called == 0);
asound_setup_called++;
// Save card, volume_changed
strcpy(m_card, card);
m_volume_changed = volume_changed;
// Load the mixer for the provided cardname
snd_mixer_open(&m_mixer, 0);
snd_mixer_attach(m_mixer, m_card);
snd_mixer_selem_register(m_mixer, NULL, NULL);
snd_mixer_load(m_mixer);
// Setup g_io_watch for the mixer
int count = snd_mixer_poll_descriptors_count(m_mixer);
if(count >= 1)
{
struct pollfd pfd;
count = snd_mixer_poll_descriptors(m_mixer, &pfd, 1);
if(count == 1)
{
GIOChannel * giochannel = g_io_channel_unix_new(pfd.fd);
g_io_add_watch_full(giochannel, G_PRIORITY_DEFAULT,
G_IO_IN, asound_poll_cb, NULL, NULL);
}
}
// Iterate over the elements in the mixer and store them in m_channel_names
int elemcount = snd_mixer_get_count(m_mixer);
snd_mixer_elem_t * elem = snd_mixer_first_elem(m_mixer);
int loop;
for(loop = 0; loop < elemcount; loop++)
{
const char * elemname = snd_mixer_selem_get_name(elem);
if(snd_mixer_selem_has_playback_volume(elem))
{
m_channel_names = g_list_append(m_channel_names,
(gpointer)g_strdup(elemname));
}
elem = snd_mixer_elem_next(elem);
}
// Setup m_elem using the provided channelname
if(channel != NULL && asound_channel_exists(channel))
asound_set_channel(channel);
else if(m_channel_names != NULL)
asound_set_channel((const gchar*)m_channel_names->data);
}
void set_state(char *elem_name, int state)
{
snd_mixer_elem_t *elem;
for ( elem = snd_mixer_first_elem( mixerFd); elem; elem = snd_mixer_elem_next( elem) ) {
printf("want %s, found %s\n",
elem_name,
snd_mixer_selem_get_name( elem)
);
if (elem_name && strcmp(elem_name,snd_mixer_selem_get_name( elem)))
continue;
snd_mixer_selem_set_playback_switch_all(elem, state);
}
}
static void set_mixer_element(snd_mixer_t *mixer,const char *name, int level,MixerAction action){
const char *elemname;
snd_mixer_elem_t *elem;
long sndMixerPMin=0;
long sndMixerPMax=0;
long newvol=0;
elem=snd_mixer_first_elem(mixer);
while (elem!=NULL){
elemname=snd_mixer_selem_get_name(elem);
//ms_message("Found alsa mixer element %s.",elemname);
if (strcmp(elemname,name)==0){
switch(action){
case CAPTURE:
if (snd_mixer_selem_has_capture_volume(elem)){
snd_mixer_selem_get_capture_volume_range(elem, &sndMixerPMin, &sndMixerPMax);
newvol=(((sndMixerPMax-sndMixerPMin)*level)/100)+sndMixerPMin;
snd_mixer_selem_set_capture_volume_all(elem,newvol);
//ms_message("Successfully set capture level for %s.",elemname);
return;
}
break;
case PLAYBACK:
if (snd_mixer_selem_has_playback_volume(elem)){
snd_mixer_selem_get_playback_volume_range(elem, &sndMixerPMin, &sndMixerPMax);
newvol=(((sndMixerPMax-sndMixerPMin)*level)/100)+sndMixerPMin;
snd_mixer_selem_set_playback_volume_all(elem,newvol);
//ms_message("Successfully set playback level for %s.",elemname);
return;
}
break;
case CAPTURE_SWITCH:
if (snd_mixer_selem_has_capture_switch(elem)){
snd_mixer_selem_set_capture_switch_all(elem,level);
//ms_message("Successfully set capture switch for %s.",elemname);
}
break;
case PLAYBACK_SWITCH:
if (snd_mixer_selem_has_playback_switch(elem)){
snd_mixer_selem_set_playback_switch_all(elem,level);
//ms_message("Successfully set capture switch for %s.",elemname);
}
break;
}
}
elem=snd_mixer_elem_next(elem);
}
return ;
}
snd_mixer_elem_t* AlsaMixer::get_playback_elem(const std::string name)
{
snd_mixer_elem_t* elem;
for (elem = snd_mixer_first_elem(this->handle);
elem;
elem = snd_mixer_elem_next(elem))
{
if (snd_mixer_selem_is_active(elem) &&
snd_mixer_selem_has_playback_volume(elem) &&
(name == snd_mixer_selem_get_name(elem)))
return elem;
}
}
static int get_mixer_element(snd_mixer_t *mixer,const char *name, MixerAction action){
long value=0;
const char *elemname;
snd_mixer_elem_t *elem;
int err;
long sndMixerPMin=0;
long sndMixerPMax=0;
long newvol=0;
elem=snd_mixer_first_elem(mixer);
while (elem!=NULL){
elemname=snd_mixer_selem_get_name(elem);
//ms_message("Found alsa mixer element %s.",elemname);
if (strcmp(elemname,name)==0){
switch (action){
case CAPTURE:
if (snd_mixer_selem_has_capture_volume(elem)){
snd_mixer_selem_get_capture_volume_range(elem, &sndMixerPMin, &sndMixerPMax);
err=snd_mixer_selem_get_capture_volume(elem,SND_MIXER_SCHN_UNKNOWN,&newvol);
newvol-=sndMixerPMin;
value=(100*newvol)/(sndMixerPMax-sndMixerPMin);
if (err<0) ms_warning("Could not get capture volume for %s:%s",name,snd_strerror(err));
//else ms_message("Successfully get capture level for %s.",elemname);
break;
}
break;
case PLAYBACK:
if (snd_mixer_selem_has_playback_volume(elem)){
snd_mixer_selem_get_playback_volume_range(elem, &sndMixerPMin, &sndMixerPMax);
err=snd_mixer_selem_get_playback_volume(elem,SND_MIXER_SCHN_FRONT_LEFT,&newvol);
newvol-=sndMixerPMin;
value=(100*newvol)/(sndMixerPMax-sndMixerPMin);
if (err<0) ms_warning("Could not get playback volume for %s:%s",name,snd_strerror(err));
//else ms_message("Successfully get playback level for %s.",elemname);
break;
}
break;
case CAPTURE_SWITCH:
break;
case PLAYBACK_SWITCH:
break;
}
}
elem=snd_mixer_elem_next(elem);
}
return value;
}
/* openmoko_mixer_open */
static int _openmoko_mixer_open(Openmoko * openmoko)
{
#ifdef __linux__
PhonePluginHelper * helper = openmoko->helper;
char const * audio_device;
snd_mixer_elem_t * elem;
openmoko->mixer_elem = NULL;
openmoko->mixer_elem_headphone = NULL;
openmoko->mixer_elem_speaker = NULL;
if((audio_device = helper->config_get(helper->phone, "openmoko",
"audio_device")) == NULL)
audio_device = "hw:0";
if(snd_mixer_open(&openmoko->mixer, 0) != 0)
{
openmoko->mixer = NULL;
return -1;
}
if(snd_mixer_attach(openmoko->mixer, audio_device) != 0
|| snd_mixer_selem_register(openmoko->mixer, NULL, NULL)
|| snd_mixer_load(openmoko->mixer) != 0)
{
_openmoko_mixer_close(openmoko);
return -1;
}
for(elem = snd_mixer_first_elem(openmoko->mixer); elem != NULL;
elem = snd_mixer_elem_next(elem))
if(strcmp(snd_mixer_selem_get_name(elem), "Headphone") == 0
&& snd_mixer_selem_has_playback_volume(elem))
openmoko->mixer_elem_headphone = elem;
else if(strcmp(snd_mixer_selem_get_name(elem), "Speaker") == 0
&& snd_mixer_selem_has_playback_volume(elem))
openmoko->mixer_elem_speaker = elem;
#endif /* __linux__ */
return 0;
}
/*
* Class: org_tritonus_lowlevel_alsa_AlsaMixerElement
* Method: getName
* Signature: ()Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL
Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_getName
(JNIEnv* env, jobject obj)
{
snd_mixer_elem_t* handle;
jstring name;
if (debug_flag) {
(void) fprintf(debug_file, "Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_getName(): begin\n");
}
handle = getHandle(env, obj);
name = (*env)->NewStringUTF(env, snd_mixer_selem_get_name(handle));
if (debug_flag) {
(void) fprintf(debug_file, "Java_org_tritonus_lowlevel_alsa_AlsaMixerElement_getName(): end\n");
}
return name;
}
static snd_mixer_elem_t*
find_playback_mixer_element(snd_mixer_t *mixer, const char *name)
{
snd_mixer_elem_t *mixer_elem;
for (mixer_elem = snd_mixer_first_elem(mixer);
mixer_elem != NULL;
mixer_elem = snd_mixer_elem_next(mixer_elem)) {
const char *elem_name = snd_mixer_selem_get_name(mixer_elem);
if ((elem_name != NULL) &&
snd_mixer_selem_has_playback_volume(mixer_elem) &&
(!strcmp(name, elem_name))) {
return mixer_elem;
}
}
return NULL;
}
static gint
_j4status_alsa_section_mixer_callback(snd_mixer_t *mixer, guint mask, snd_mixer_elem_t *elem)
{
J4statusAlsaSection *section = snd_mixer_get_callback_private(mixer);
if ( mask & SND_CTL_EVENT_MASK_ADD )
{
if ( ( snd_mixer_selem_get_index(elem) == 0 )
&& ( g_strcmp0(snd_mixer_selem_get_name(elem), "Master") == 0 )
&& snd_mixer_selem_has_playback_channel(elem, SND_MIXER_SCHN_FRONT_LEFT)
&& ( snd_mixer_elem_get_callback_private(elem) == NULL )
)
{
snd_mixer_elem_set_callback(elem, _j4status_alsa_section_elem_callback);
snd_mixer_elem_set_callback_private(elem, section);
}
}
return 0;
}
gboolean
gam_toggle_get_state (GamToggle *gam_toggle)
{
GamTogglePrivate *priv;
gint value = 0;
priv = GAM_TOGGLE_GET_PRIVATE (gam_toggle);
if (snd_mixer_selem_has_playback_switch (priv->elem)) {
snd_mixer_selem_get_playback_switch (priv->elem, 0, &value);
} else if (snd_mixer_selem_has_capture_switch (priv->elem)) {
snd_mixer_selem_get_capture_switch (priv->elem, 0, &value);
} else {
g_warning ("%s (). No idea what to do for mixer element \"%s\"!",
__FUNCTION__, snd_mixer_selem_get_name (priv->elem));
}
return value;
}
INT32 PORT_GetPortCount(void* id) {
PortMixer* portMixer;
snd_mixer_elem_t *elem;
TRACE0("> PORT_GetPortCount\n");
if (id == NULL) {
// $$mp: Should become a descriptive error code (invalid handle).
return -1;
}
portMixer = (PortMixer*) id;
if (portMixer->numElems == 0) {
for (elem = snd_mixer_first_elem(portMixer->mixer_handle); elem; elem = snd_mixer_elem_next(elem)) {
if (!snd_mixer_selem_is_active(elem))
continue;
TRACE2("Simple mixer control '%s',%i\n",
snd_mixer_selem_get_name(elem),
snd_mixer_selem_get_index(elem));
if (snd_mixer_selem_has_playback_volume(elem)) {
portMixer->elems[portMixer->numElems] = elem;
portMixer->types[portMixer->numElems] = PORT_DST_UNKNOWN;
portMixer->numElems++;
}
// to prevent buffer overflow
if (portMixer->numElems >= MAX_ELEMS) {
break;
}
/* If an element has both playback an capture volume, it is put into the arrays
twice. */
if (snd_mixer_selem_has_capture_volume(elem)) {
portMixer->elems[portMixer->numElems] = elem;
portMixer->types[portMixer->numElems] = PORT_SRC_UNKNOWN;
portMixer->numElems++;
}
// to prevent buffer overflow
if (portMixer->numElems >= MAX_ELEMS) {
break;
}
}
}
TRACE0("< PORT_GetPortCount\n");
return portMixer->numElems;
}
int init_alsa_volume_control(char *name)
{
snd_mixer_open(&mixer,0);
snd_mixer_attach(mixer,name);
snd_mixer_selem_register(mixer,NULL,NULL);
snd_mixer_load(mixer);
mixerelem = snd_mixer_first_elem(mixer);
while (mixerelem) {
/* It should work on most of the systems. Tested on Debian, Fedora, Gentoo, Ubuntu, RedHat, CentOS */
if (strcasecmp(snd_mixer_selem_get_name(mixerelem), "Master") == 0) {
snd_mixer_selem_get_playback_volume_range(mixerelem,&volume_min,&volume_max);
return 0;
}
mixerelem = snd_mixer_elem_next(mixerelem);
}
return 1;
}
INT32 PORT_GetPortName(void* id, INT32 portIndex, char* name, INT32 len) {
PortMixer* portMixer;
const char* nam;
TRACE0("> PORT_GetPortName\n");
if (id == NULL) {
// $$mp: Should become a descriptive error code (invalid handle).
return -1;
}
portMixer = (PortMixer*) id;
if (portIndex < 0 || portIndex >= portMixer->numElems) {
// $$mp: Should become a descriptive error code (index out of bounds).
return -1;
}
nam = snd_mixer_selem_get_name(portMixer->elems[portIndex]);
strncpy(name, nam, len - 1);
name[len - 1] = 0;
TRACE0("< PORT_GetPortName\n");
return TRUE;
}
void NeoControl::updateMixer()
{
if(screen != ScreenMixer)
{
return;
}
if(slider4->sliding || slider5->sliding)
{
QTimer::singleShot(100, this, SLOT(updateMixer()));
return;
}
snd_mixer_elem_t *elem;
snd_mixer_elem_t *elem4 = NULL;
snd_mixer_elem_t *elem5 = NULL;
for (elem = snd_mixer_first_elem(mixerFd); elem;
elem = snd_mixer_elem_next(elem)) {
QString elemName = QString(snd_mixer_selem_get_name(elem));
if(elemName == "Speaker")
{
elem4 = elem;
}
else if(elemName == "Mono Playback")
{
elem5 = elem;
}
}
slider4->setMixerElem(elem4, true);
slider5->setMixerElem(elem5, true);
label4->setText(tr("Playback (control.4) %1").arg(slider4->volume)); // Mono Playback Volume
label5->setText(tr("Microphone (control.5) %1").arg(slider5->volume)); // Mono Sidetone Playback Volume
label->setText(tr("Call volume settings"));
QTimer::singleShot(1000, this, SLOT(updateMixer()));
}
/**
* Get all playable channels for a single alsa card and
* return them as a GSList.
*
* @param card HCTL name of the alsa card
* @return the GSList of channels
*/
static GSList *
get_channels(const char *card)
{
int ccount, i;
snd_mixer_t *mixer;
snd_mixer_elem_t *telem;
GSList *channels = NULL;
mixer = open_mixer(card, NULL, 0);
if (mixer == NULL)
return NULL;
ccount = snd_mixer_get_count(mixer);
telem = snd_mixer_first_elem(mixer);
for (i = 0; i < ccount; i++) {
if (snd_mixer_selem_has_playback_volume(telem))
channels = g_slist_append(channels,
strdup(snd_mixer_selem_get_name(telem)));
telem = snd_mixer_elem_next(telem);
}
#ifdef DEBUG
GSList *tmp = channels;
if (tmp) {
printf("Card %s: available channels\n", card);
while (tmp) {
printf("\t%s\n", (char *) tmp->data);
tmp = tmp->next;
}
} else {
printf("Card %s: no playable channels\n", card);
}
#endif
close_mixer(mixer, card);
return channels;
}
GstMixerOptions *
gst_alsa_mixer_options_new (snd_mixer_elem_t * element, gint track_num)
{
GstMixerOptions *opts;
GstAlsaMixerOptions *alsa_opts;
GstMixerTrack *track;
const gchar *label;
gint num, i;
gchar str[256];
label = snd_mixer_selem_get_name (element);
opts = g_object_new (GST_ALSA_MIXER_OPTIONS_TYPE,
"untranslated-label", label, NULL);
alsa_opts = (GstAlsaMixerOptions *) opts;
track = (GstMixerTrack *) opts;
/* set basic information */
track->label = g_strdup (label); /* FIXME: translate this? */
track->num_channels = 0;
track->flags = 0;
alsa_opts->element = element;
alsa_opts->track_num = track_num;
/* get enumerations for switch/options object */
num = snd_mixer_selem_get_enum_items (element);
for (i = 0; i < num; i++) {
if (snd_mixer_selem_get_enum_item_name (element, i, 255, str) < 0) {
g_object_unref (G_OBJECT (alsa_opts));
return NULL;
}
opts->values = g_list_append (opts->values, g_strdup (str));
}
return opts;
}
static void get_mixer_name(struct alsa_factory *af)
{
snd_mixer_t *handle;
snd_mixer_elem_t *elem;
if (snd_mixer_open(&handle, 0) < 0)
return;
if (snd_mixer_attach(handle, "default") < 0) {
snd_mixer_close(handle);
return;
}
if (snd_mixer_selem_register(handle, NULL, NULL) < 0) {
snd_mixer_close(handle);
return;
}
if (snd_mixer_load(handle) < 0) {
snd_mixer_close(handle);
return;
}
for (elem = snd_mixer_first_elem(handle); elem;
elem = snd_mixer_elem_next(elem))
{
if (snd_mixer_selem_is_active(elem) &&
snd_mixer_selem_has_playback_volume(elem))
{
pj_ansi_strncpy(af->pb_mixer_name, snd_mixer_selem_get_name(elem),
sizeof(af->pb_mixer_name));
TRACE_((THIS_FILE, "Playback mixer name: %s", af->pb_mixer_name));
break;
}
}
snd_mixer_close(handle);
}
static int simple_update(snd_mixer_elem_t *melem)
{
selem_none_t *simple;
unsigned int caps, pchannels, cchannels;
long pmin, pmax, cmin, cmax;
selem_ctl_t *ctl;
const char *name;
caps = 0;
pchannels = 0;
pmin = LONG_MAX;
pmax = LONG_MIN;
cchannels = 0;
cmin = LONG_MAX;
cmax = LONG_MIN;
assert(snd_mixer_elem_get_type(melem) == SND_MIXER_ELEM_SIMPLE);
simple = snd_mixer_elem_get_private(melem);
name = snd_mixer_selem_get_name(melem);
ctl = &simple->ctls[CTL_SINGLE];
if (ctl->elem) {
pchannels = cchannels = ctl->values;
if (ctl->type == SND_CTL_ELEM_TYPE_INTEGER) {
caps |= SM_CAP_GVOLUME;
pmin = cmin = ctl->min;
pmax = cmax = ctl->max;
} else
caps |= SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_GLOBAL_SWITCH];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
if (cchannels < ctl->values)
cchannels = ctl->values;
caps |= SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_GLOBAL_ROUTE];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
if (cchannels < ctl->values)
cchannels = ctl->values;
caps |= SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_GLOBAL_VOLUME];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
if (pmin > ctl->min)
pmin = ctl->min;
if (pmax < ctl->max)
pmax = ctl->max;
if (cchannels < ctl->values)
cchannels = ctl->values;
if (cmin > ctl->min)
cmin = ctl->min;
if (cmax < ctl->max)
cmax = ctl->max;
caps |= SM_CAP_GVOLUME;
}
ctl = &simple->ctls[CTL_PLAYBACK_SWITCH];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
caps |= SM_CAP_PSWITCH;
caps &= ~SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_PLAYBACK_ROUTE];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
caps |= SM_CAP_PSWITCH;
caps &= ~SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_CAPTURE_SWITCH];
if (ctl->elem) {
if (cchannels < ctl->values)
cchannels = ctl->values;
caps |= SM_CAP_CSWITCH;
caps &= ~SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_CAPTURE_ROUTE];
if (ctl->elem) {
if (cchannels < ctl->values)
cchannels = ctl->values;
caps |= SM_CAP_CSWITCH;
caps &= ~SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_PLAYBACK_VOLUME];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
if (pmin > ctl->min)
pmin = ctl->min;
if (pmax < ctl->max)
pmax = ctl->max;
caps |= SM_CAP_PVOLUME;
caps &= ~SM_CAP_GVOLUME;
}
ctl = &simple->ctls[CTL_CAPTURE_VOLUME];
if (ctl->elem) {
if (cchannels < ctl->values)
cchannels = ctl->values;
if (cmin > ctl->min)
cmin = ctl->min;
if (cmax < ctl->max)
cmax = ctl->max;
caps |= SM_CAP_CVOLUME;
caps &= ~SM_CAP_GVOLUME;
}
ctl = &simple->ctls[CTL_CAPTURE_SOURCE];
if (ctl->elem) {
if (cchannels < ctl->values)
cchannels = ctl->values;
caps |= SM_CAP_CSWITCH | SM_CAP_CSWITCH_EXCL;
caps &= ~SM_CAP_GSWITCH;
}
ctl = &simple->ctls[CTL_GLOBAL_ENUM];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
caps |= SM_CAP_PENUM | SM_CAP_CENUM;
}
ctl = &simple->ctls[CTL_PLAYBACK_ENUM];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
caps |= SM_CAP_PENUM;
}
ctl = &simple->ctls[CTL_CAPTURE_ENUM];
if (ctl->elem) {
if (pchannels < ctl->values)
pchannels = ctl->values;
caps |= SM_CAP_CENUM;
}
if (pchannels > 32)
pchannels = 32;
if (cchannels > 32)
cchannels = 32;
if (caps & (SM_CAP_GSWITCH|SM_CAP_PSWITCH))
caps |= SM_CAP_PSWITCH_JOIN;
if (caps & (SM_CAP_GVOLUME|SM_CAP_PVOLUME))
caps |= SM_CAP_PVOLUME_JOIN;
if (caps & (SM_CAP_GSWITCH|SM_CAP_CSWITCH))
caps |= SM_CAP_CSWITCH_JOIN;
if (caps & (SM_CAP_GVOLUME|SM_CAP_CVOLUME))
caps |= SM_CAP_CVOLUME_JOIN;
if (pchannels > 1 || cchannels > 1) {
if (simple->ctls[CTL_SINGLE].elem &&
simple->ctls[CTL_SINGLE].values > 1) {
if (caps & SM_CAP_GSWITCH)
caps &= ~(SM_CAP_PSWITCH_JOIN|SM_CAP_CSWITCH_JOIN);
else
caps &= ~(SM_CAP_PVOLUME_JOIN|SM_CAP_CVOLUME_JOIN);
}
if (simple->ctls[CTL_GLOBAL_ROUTE].elem ||
(simple->ctls[CTL_GLOBAL_SWITCH].elem &&
simple->ctls[CTL_GLOBAL_SWITCH].values > 1)) {
caps &= ~(SM_CAP_PSWITCH_JOIN|SM_CAP_CSWITCH_JOIN);
}
if (simple->ctls[CTL_GLOBAL_VOLUME].elem &&
simple->ctls[CTL_GLOBAL_VOLUME].values > 1) {
caps &= ~(SM_CAP_PVOLUME_JOIN|SM_CAP_CVOLUME_JOIN);
}
}
if (pchannels > 1) {
if (simple->ctls[CTL_PLAYBACK_ROUTE].elem ||
(simple->ctls[CTL_PLAYBACK_SWITCH].elem &&
simple->ctls[CTL_PLAYBACK_SWITCH].values > 1)) {
caps &= ~SM_CAP_PSWITCH_JOIN;
}
if (simple->ctls[CTL_PLAYBACK_VOLUME].elem &&
simple->ctls[CTL_PLAYBACK_VOLUME].values > 1) {
caps &= ~SM_CAP_PVOLUME_JOIN;
}
}
if (cchannels > 1) {
if (simple->ctls[CTL_CAPTURE_ROUTE].elem ||
(simple->ctls[CTL_CAPTURE_SWITCH].elem &&
simple->ctls[CTL_CAPTURE_SWITCH].values > 1) ||
(simple->ctls[CTL_CAPTURE_SOURCE].elem &&
simple->ctls[CTL_CAPTURE_SOURCE].values > 1)) {
caps &= ~SM_CAP_CSWITCH_JOIN;
}
if (simple->ctls[CTL_CAPTURE_VOLUME].elem &&
simple->ctls[CTL_CAPTURE_VOLUME].values > 1) {
caps &= ~SM_CAP_CVOLUME_JOIN;
}
}
/* exceptions */
if ((caps & (SM_CAP_GSWITCH|SM_CAP_PSWITCH|SM_CAP_CSWITCH)) &&
(caps & (SM_CAP_GSWITCH|SM_CAP_PSWITCH|SM_CAP_CSWITCH)) == (caps & SM_CAP_GSWITCH)) {
caps &= ~(SM_CAP_GSWITCH|SM_CAP_CSWITCH_JOIN|SM_CAP_CSWITCH_EXCL);
caps |= SM_CAP_PSWITCH;
}
if ((caps & SM_CAP_GSWITCH) &&
(caps & (SM_CAP_PSWITCH|SM_CAP_CSWITCH)) == 0)
caps |= SM_CAP_PSWITCH|SM_CAP_CSWITCH;
if ((caps & SM_CAP_GVOLUME) &&
(caps & (SM_CAP_PVOLUME|SM_CAP_CVOLUME)) == 0)
caps |= SM_CAP_PVOLUME|SM_CAP_CVOLUME;
simple->selem.caps = caps;
simple->str[SM_PLAY].channels = pchannels;
if (!simple->str[SM_PLAY].range) {
simple->str[SM_PLAY].min = pmin != LONG_MAX ? pmin : 0;
simple->str[SM_PLAY].max = pmax != LONG_MIN ? pmax : 0;
}
simple->str[SM_CAPT].channels = cchannels;
if (!simple->str[SM_CAPT].range) {
simple->str[SM_CAPT].min = cmin != LONG_MAX ? cmin : 0;
simple->str[SM_CAPT].max = cmax != LONG_MIN ? cmax : 0;
}
return 0;
}
static void
gst_alsa_mixer_ensure_track_list (GstAlsaMixer * mixer)
{
gint i, count;
snd_mixer_elem_t *element, *master;
GList *item;
g_return_if_fail (mixer->handle != NULL);
if (mixer->tracklist)
return;
g_static_rec_mutex_lock (mixer->rec_mutex);
master = gst_alsa_mixer_find_master_mixer (mixer, mixer->handle);
count = snd_mixer_get_count (mixer->handle);
element = snd_mixer_first_elem (mixer->handle);
/* build track list
*
* Some ALSA tracks may have playback and capture capabilities.
* Here we model them as two separate GStreamer tracks.
*/
for (i = 0; i < count; i++) {
GstMixerTrack *play_track = NULL;
GstMixerTrack *cap_track = NULL;
const gchar *name;
GList *item;
gint samename = 0;
name = snd_mixer_selem_get_name (element);
/* prevent dup names */
for (item = mixer->tracklist; item != NULL; item = item->next) {
snd_mixer_elem_t *temp;
if (GST_IS_ALSA_MIXER_OPTIONS (item->data))
temp = GST_ALSA_MIXER_OPTIONS (item->data)->element;
else
temp = GST_ALSA_MIXER_TRACK (item->data)->element;
if (strcmp (name, snd_mixer_selem_get_name (temp)) == 0)
samename++;
}
GST_LOG ("[%s] probing element #%u, mixer->dir=%u", name, i, mixer->dir);
if (mixer->dir & GST_ALSA_MIXER_PLAYBACK) {
gboolean has_playback_switch, has_playback_volume;
has_playback_switch = snd_mixer_selem_has_playback_switch (element);
has_playback_volume = snd_mixer_selem_has_playback_volume (element);
GST_LOG ("[%s] PLAYBACK: has_playback_volume=%d, has_playback_switch=%d"
"%s", name, has_playback_volume, has_playback_switch,
(element == master) ? " MASTER" : "");
if (has_playback_volume) {
gint flags = GST_MIXER_TRACK_OUTPUT;
if (element == master)
flags |= GST_MIXER_TRACK_MASTER;
play_track = gst_alsa_mixer_track_new (element, samename, i,
flags, FALSE, NULL, FALSE);
} else if (has_playback_switch) {
/* simple mute switch */
play_track = gst_alsa_mixer_track_new (element, samename, i,
GST_MIXER_TRACK_OUTPUT, TRUE, NULL, FALSE);
}
if (snd_mixer_selem_is_enumerated (element)) {
GstMixerOptions *opts = gst_alsa_mixer_options_new (element, i);
GST_LOG ("[%s] is enumerated (%d)", name, i);
mixer->tracklist = g_list_append (mixer->tracklist, opts);
}
}
if (mixer->dir & GST_ALSA_MIXER_CAPTURE) {
gboolean has_capture_switch, has_common_switch;
gboolean has_capture_volume, has_common_volume;
has_capture_switch = snd_mixer_selem_has_capture_switch (element);
has_common_switch = snd_mixer_selem_has_common_switch (element);
has_capture_volume = snd_mixer_selem_has_capture_volume (element);
has_common_volume = snd_mixer_selem_has_common_volume (element);
GST_LOG ("[%s] CAPTURE: has_capture_volume=%d, has_common_volume=%d, "
"has_capture_switch=%d, has_common_switch=%d, play_track=%p", name,
has_capture_volume, has_common_volume, has_capture_switch,
has_common_switch, play_track);
if (has_capture_volume && !(play_track && has_common_volume)) {
cap_track = gst_alsa_mixer_track_new (element, samename, i,
GST_MIXER_TRACK_INPUT, FALSE, NULL, play_track != NULL);
} else if (has_capture_switch && !(play_track && has_common_switch)) {
cap_track = gst_alsa_mixer_track_new (element, samename, i,
GST_MIXER_TRACK_INPUT, TRUE, NULL, play_track != NULL);
}
}
if (play_track && cap_track) {
GST_ALSA_MIXER_TRACK (play_track)->shared_mute =
GST_ALSA_MIXER_TRACK (cap_track);
GST_ALSA_MIXER_TRACK (cap_track)->shared_mute =
GST_ALSA_MIXER_TRACK (play_track);
}
if (play_track)
mixer->tracklist = g_list_append (mixer->tracklist, play_track);
if (cap_track)
mixer->tracklist = g_list_append (mixer->tracklist, cap_track);
element = snd_mixer_elem_next (element);
}
for (item = mixer->tracklist; item != NULL; item = item->next) {
snd_mixer_elem_t *temp;
if (GST_IS_ALSA_MIXER_OPTIONS (item->data))
temp = GST_ALSA_MIXER_OPTIONS (item->data)->element;
else
temp = GST_ALSA_MIXER_TRACK (item->data)->element;
snd_mixer_elem_set_callback (temp, gst_alsa_mixer_elem_handle_callback);
snd_mixer_elem_set_callback_private (temp, mixer);
}
g_static_rec_mutex_unlock (mixer->rec_mutex);
}