void
gst_alsa_mixer_set_record (GstAlsaMixer * mixer,
GstMixerTrack * track, gboolean record)
{
GstAlsaMixerTrack *alsa_track = GST_ALSA_MIXER_TRACK (track);
g_return_if_fail (mixer->handle != NULL);
g_static_rec_mutex_lock (mixer->rec_mutex);
gst_alsa_mixer_track_update (alsa_track);
if (!!(record) == !!(track->flags & GST_MIXER_TRACK_RECORD)) {
g_static_rec_mutex_unlock (mixer->rec_mutex);
return;
}
if (record) {
track->flags |= GST_MIXER_TRACK_RECORD;
} else {
track->flags &= ~GST_MIXER_TRACK_RECORD;
}
if (alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_CSWITCH) {
snd_mixer_selem_set_capture_switch_all (alsa_track->element,
record ? 1 : 0);
/* update all tracks in same exlusive cswitch group */
if (alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_CSWITCH_EXCL) {
GList *item;
for (item = mixer->tracklist; item != NULL; item = item->next) {
if (GST_IS_ALSA_MIXER_TRACK (item->data)) {
GstAlsaMixerTrack *item_alsa_track =
GST_ALSA_MIXER_TRACK (item->data);
if (item_alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_CSWITCH_EXCL &&
item_alsa_track->capture_group == alsa_track->capture_group) {
gst_alsa_mixer_track_update (item_alsa_track);
}
}
}
}
} else {
gint i;
for (i = 0; i < track->num_channels; i++) {
long vol = record ? alsa_track->volumes[i] : track->min_volume;
snd_mixer_selem_set_capture_volume (alsa_track->element, i, vol);
}
}
g_static_rec_mutex_unlock (mixer->rec_mutex);
}
void
gst_alsa_mixer_set_volume (GstAlsaMixer * mixer, GstMixerTrack * track,
gint * volumes)
{
GstAlsaMixerTrack *alsa_track = GST_ALSA_MIXER_TRACK (track);
gint i;
g_return_if_fail (mixer->handle != NULL);
g_static_rec_mutex_lock (mixer->rec_mutex);
gst_alsa_mixer_track_update (alsa_track);
if (track->flags & GST_MIXER_TRACK_OUTPUT) {
/* Is emulated mute flag activated? */
if (track->flags & GST_MIXER_TRACK_MUTE &&
!(alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_PSWITCH)) {
for (i = 0; i < track->num_channels; i++)
alsa_track->volumes[i] = volumes[i];
} else {
if (check_if_volumes_are_the_same (track->num_channels, volumes)) {
snd_mixer_selem_set_playback_volume_all (alsa_track->element,
volumes[0]);
for (i = 0; i < track->num_channels; i++)
alsa_track->volumes[i] = volumes[0];
} else {
for (i = 0; i < track->num_channels; i++) {
alsa_track->volumes[i] = volumes[i];
snd_mixer_selem_set_playback_volume (alsa_track->element, i,
volumes[i]);
}
}
}
} else if (track->flags & GST_MIXER_TRACK_INPUT) {
/* Is emulated record flag activated? */
if (track->flags & GST_MIXER_TRACK_RECORD ||
alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_CSWITCH) {
if (check_if_volumes_are_the_same (track->num_channels, volumes)) {
snd_mixer_selem_set_capture_volume_all (alsa_track->element,
volumes[0]);
for (i = 0; i < track->num_channels; i++)
alsa_track->volumes[i] = volumes[0];
} else {
for (i = 0; i < track->num_channels; i++) {
alsa_track->volumes[i] = volumes[i];
snd_mixer_selem_set_capture_volume (alsa_track->element, i,
volumes[i]);
}
}
} else {
for (i = 0; i < track->num_channels; i++)
alsa_track->volumes[i] = volumes[i];
}
}
g_static_rec_mutex_unlock (mixer->rec_mutex);
}
void
gst_alsa_mixer_set_mute (GstAlsaMixer * mixer, GstMixerTrack * track,
gboolean mute)
{
GstAlsaMixerTrack *alsa_track = GST_ALSA_MIXER_TRACK (track);
g_return_if_fail (mixer->handle != NULL);
g_static_rec_mutex_lock (mixer->rec_mutex);
gst_alsa_mixer_track_update (alsa_track);
if (!!(mute) == !!(track->flags & GST_MIXER_TRACK_MUTE)) {
g_static_rec_mutex_unlock (mixer->rec_mutex);
return;
}
if (mute) {
track->flags |= GST_MIXER_TRACK_MUTE;
if (alsa_track->shared_mute)
((GstMixerTrack *) (alsa_track->shared_mute))->flags |=
GST_MIXER_TRACK_MUTE;
} else {
track->flags &= ~GST_MIXER_TRACK_MUTE;
if (alsa_track->shared_mute)
((GstMixerTrack *) (alsa_track->shared_mute))->flags &=
~GST_MIXER_TRACK_MUTE;
}
if (alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_PSWITCH) {
snd_mixer_selem_set_playback_switch_all (alsa_track->element, mute ? 0 : 1);
} else {
gint i;
GstAlsaMixerTrack *ctrl_track;
if ((track->flags & GST_MIXER_TRACK_INPUT)
&& alsa_track->shared_mute != NULL)
ctrl_track = alsa_track->shared_mute;
else
ctrl_track = alsa_track;
for (i = 0; i < ((GstMixerTrack *) ctrl_track)->num_channels; i++) {
long vol =
mute ? ((GstMixerTrack *) ctrl_track)->
min_volume : ctrl_track->volumes[i];
snd_mixer_selem_set_playback_volume (ctrl_track->element, i, vol);
}
}
g_static_rec_mutex_unlock (mixer->rec_mutex);
}
void
gst_alsa_mixer_get_volume (GstAlsaMixer * mixer, GstMixerTrack * track,
gint * volumes)
{
gint i;
GstAlsaMixerTrack *alsa_track = GST_ALSA_MIXER_TRACK (track);
g_return_if_fail (mixer->handle != NULL);
g_static_rec_mutex_lock (mixer->rec_mutex);
gst_alsa_mixer_track_update (alsa_track);
if (track->flags & GST_MIXER_TRACK_OUTPUT) { /* return playback volume */
/* Is emulated mute flag activated? */
if (track->flags & GST_MIXER_TRACK_MUTE &&
!(alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_PSWITCH)) {
for (i = 0; i < track->num_channels; i++)
volumes[i] = alsa_track->volumes[i];
} else {
for (i = 0; i < track->num_channels; i++) {
long tmp = 0;
snd_mixer_selem_get_playback_volume (alsa_track->element, i, &tmp);
alsa_track->volumes[i] = volumes[i] = (gint) tmp;
}
}
} else if (track->flags & GST_MIXER_TRACK_INPUT) { /* return capture volume */
/* Is emulated record flag activated? */
if (alsa_track->alsa_flags & GST_ALSA_MIXER_TRACK_CSWITCH ||
track->flags & GST_MIXER_TRACK_RECORD) {
for (i = 0; i < track->num_channels; i++) {
long tmp = 0;
snd_mixer_selem_get_capture_volume (alsa_track->element, i, &tmp);
alsa_track->volumes[i] = volumes[i] = (gint) tmp;
}
} else {
for (i = 0; i < track->num_channels; i++)
volumes[i] = alsa_track->volumes[i];
}
}
g_static_rec_mutex_unlock (mixer->rec_mutex);
}
static void
gst_alsa_mixer_update_track (GstAlsaMixer * mixer,
GstAlsaMixerTrack * alsa_track)
{
GstMixerTrack *track = (GstMixerTrack *) alsa_track;
gboolean old_mute;
gboolean old_record;
gint i, n_channels;
gint *old_volumes;
GST_DEBUG ("Updating track %" GST_PTR_FORMAT, alsa_track);
if (mixer->interface == NULL) {
GST_WARNING ("Cannot send update notifications, no GstMixer * given");
return;
}
old_mute = !!(GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_MUTE));
old_record = !!(GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_RECORD));
old_volumes = g_new (gint, track->num_channels);
n_channels = track->num_channels;
memcpy (old_volumes, alsa_track->volumes,
sizeof (gint) * track->num_channels);
gst_alsa_mixer_track_update (alsa_track);
if (old_record !=
!!(GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_RECORD))) {
gst_mixer_record_toggled (mixer->interface, track,
!!GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_RECORD));
}
if (old_mute != !!(GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_MUTE))) {
gst_mixer_mute_toggled (mixer->interface, track,
!!GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_MUTE));
}
n_channels = MIN (n_channels, track->num_channels);
for (i = 0; i < n_channels; i++) {
if (old_volumes[i] != alsa_track->volumes[i]) {
gst_mixer_volume_changed (mixer->interface, track, alsa_track->volumes);
break;
}
}
g_free (old_volumes);
}
GstMixerTrack *
gst_alsa_mixer_track_new (snd_mixer_elem_t * element,
gint num, gint track_num, gint flags, gboolean sw,
GstAlsaMixerTrack * shared_mute_track, gboolean append_capture)
{
GstAlsaMixerTrack *alsa_track;
GstMixerTrack *track;
const gchar *name;
const gchar *label;
gint i;
long min = 0, max = 0;
const struct
{
const gchar orig[12];
const gchar trans[12];
} alsa_track_labels[] = {
{
"Master", N_("Master")}, {
"Bass", N_("Bass")}, {
"Treble", N_("Treble")}, {
"PCM", N_("PCM")}, {
"Synth", N_("Synth")}, {
"Line", N_("Line-in")}, {
"CD", N_("CD")}, {
"Mic", N_("Microphone")}, {
"PC Speaker", N_("PC Speaker")}, {
"Playback", N_("Playback")}, {
"Capture", N_("Capture")}
};
name = snd_mixer_selem_get_name (element);
GST_LOG ("[%s] num=%d,track_num=%d,flags=0x%08x,sw=%s,shared_mute_track=%p",
name, num, track_num, flags, (sw) ? "true" : "false", shared_mute_track);
track = (GstMixerTrack *) g_object_new (GST_ALSA_MIXER_TRACK_TYPE,
"untranslated-label", name, NULL);
alsa_track = (GstAlsaMixerTrack *) track;
GST_LOG ("[%s] created new mixer track %p", name, track);
/* This reflects the assumptions used for GstAlsaMixerTrack */
if (!(!!(flags & GST_MIXER_TRACK_OUTPUT) ^ !!(flags & GST_MIXER_TRACK_INPUT))) {
GST_ERROR ("Mixer track must be either output or input!");
g_return_val_if_reached (NULL);
}
track->flags = flags;
alsa_track->element = element;
alsa_track->shared_mute = shared_mute_track;
alsa_track->track_num = track_num;
alsa_track->alsa_channels = 0;
gst_alsa_mixer_track_update_alsa_capabilities (alsa_track);
if (flags & GST_MIXER_TRACK_OUTPUT) {
while (alsa_track->alsa_channels < GST_ALSA_MAX_CHANNELS &&
snd_mixer_selem_has_playback_channel (element,
alsa_track->alsa_channels)) {
alsa_track->alsa_channels++;
}
GST_LOG ("[%s] %d output channels", name, alsa_track->alsa_channels);
} else if (flags & GST_MIXER_TRACK_INPUT) {
while (alsa_track->alsa_channels < GST_ALSA_MAX_CHANNELS &&
snd_mixer_selem_has_capture_channel (element,
alsa_track->alsa_channels)) {
alsa_track->alsa_channels++;
}
GST_LOG ("[%s] %d input channels", name, alsa_track->alsa_channels);
} else {
g_assert_not_reached ();
}
if (sw)
track->num_channels = 0;
else
track->num_channels = alsa_track->alsa_channels;
/* translate the name if we can */
label = name;
for (i = 0; i < G_N_ELEMENTS (alsa_track_labels); ++i) {
if (g_utf8_collate (label, alsa_track_labels[i].orig) == 0) {
label = _(alsa_track_labels[i].trans);
break;
}
}
if (num == 0) {
track->label = g_strdup_printf ("%s%s%s", label,
append_capture ? " " : "", append_capture ? _("Capture") : "");
} else {
track->label = g_strdup_printf ("%s%s%s %d", label,
append_capture ? " " : "", append_capture ? _("Capture") : "", num);
}
/* set volume information */
if (track->num_channels > 0) {
if ((flags & GST_MIXER_TRACK_OUTPUT))
snd_mixer_selem_get_playback_volume_range (element, &min, &max);
else
snd_mixer_selem_get_capture_volume_range (element, &min, &max);
}
track->min_volume = (gint) min;
track->max_volume = (gint) max;
for (i = 0; i < track->num_channels; i++) {
long tmp = 0;
if (flags & GST_MIXER_TRACK_OUTPUT)
snd_mixer_selem_get_playback_volume (element, i, &tmp);
else
snd_mixer_selem_get_capture_volume (element, i, &tmp);
alsa_track->volumes[i] = (gint) tmp;
}
gst_alsa_mixer_track_update (alsa_track);
return track;
}
