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ao_alsa: add mute control

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This commit is contained in:
wm4 2012-01-17 07:54:27 +01:00
parent d4cf8cd7a2
commit 08978c5fb1
1 changed files with 44 additions and 24 deletions
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68
libao2/ao_alsa.c
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@ -106,6 +106,8 @@ static int control(int cmd, void *arg)
switch(cmd) {
case AOCONTROL_QUERY_FORMAT:
return CONTROL_TRUE;
case AOCONTROL_GET_MUTE:
case AOCONTROL_SET_MUTE:
case AOCONTROL_GET_VOLUME:
case AOCONTROL_SET_VOLUME:
{
@ -192,16 +194,15 @@ static int control(int cmd, void *arg)
snd_mixer_selem_get_playback_volume_range(elem,&pmin,&pmax);
f_multi = (100 / (float)(pmax - pmin));
if (cmd == AOCONTROL_SET_VOLUME) {
switch (cmd) {
case 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_tmsg(MSGT_AO,MSGL_ERR,"[AO_ALSA] Error setting left channel, %s\n",
snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
goto mixer_error;
}
mp_msg(MSGT_AO,MSGL_DBG2,"left=%li, ", set_vol);
@ -210,33 +211,52 @@ static int control(int cmd, void *arg)
if ((err = snd_mixer_selem_set_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, set_vol)) < 0) {
mp_tmsg(MSGT_AO,MSGL_ERR,"[AO_ALSA] Error setting right channel, %s\n",
snd_strerror(err));
snd_mixer_close(handle);
return CONTROL_ERROR;
goto mixer_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);
}
break;
}
case AOCONTROL_GET_VOLUME: {
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);
break;
}
case AOCONTROL_SET_MUTE: {
if (!snd_mixer_selem_has_playback_switch(elem))
goto mixer_error;
bool m_l = vol->left == 0.0f, m_r = vol->right == 0.0f;
if (snd_mixer_selem_has_playback_switch_joined(elem)) {
m_l = m_l || m_r;
} else {
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, !m_r);
}
snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, !m_l);
break;
}
case AOCONTROL_GET_MUTE: {
if (!snd_mixer_selem_has_playback_switch(elem))
goto mixer_error;
int tmp = 1;
snd_mixer_selem_get_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, &tmp);
vol->left = tmp ? 1.0f : 0.0f;
if (snd_mixer_selem_has_playback_switch_joined(elem)) {
vol->right = vol->left;
} else {
snd_mixer_selem_get_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, &tmp);
vol->right = tmp ? 1.0f : 0.0f;
}
break;
}
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;
mixer_error:
snd_mixer_close(handle);
return CONTROL_ERROR;
}
} //end switch