static int control(struct ao *ao, enum aocontrol cmd, void *arg)
{
struct wasapi_state *state = (struct wasapi_state *)ao->priv;
ao_control_vol_t *vol = (ao_control_vol_t *)arg;
BOOL mute;
switch (cmd) {
case AOCONTROL_GET_VOLUME:
if (state->opt_exclusive)
IAudioEndpointVolume_GetMasterVolumeLevelScalar(state->pEndpointVolumeProxy,
&state->audio_volume);
else
ISimpleAudioVolume_GetMasterVolume(state->pAudioVolumeProxy,
&state->audio_volume);
/* check to see if user manually changed volume through mixer;
this information is used in exclusive mode for restoring the mixer volume on uninit */
if (state->audio_volume != state->previous_volume) {
MP_VERBOSE(state, "mixer difference: %.2g now, expected %.2g\n",
state->audio_volume, state->previous_volume);
state->initial_volume = state->audio_volume;
}
vol->left = vol->right = 100.0f * state->audio_volume;
return CONTROL_OK;
case AOCONTROL_SET_VOLUME:
state->audio_volume = vol->left / 100.f;
if (state->opt_exclusive)
IAudioEndpointVolume_SetMasterVolumeLevelScalar(state->pEndpointVolumeProxy,
state->audio_volume, NULL);
else
ISimpleAudioVolume_SetMasterVolume(state->pAudioVolumeProxy,
state->audio_volume, NULL);
state->previous_volume = state->audio_volume;
return CONTROL_OK;
case AOCONTROL_GET_MUTE:
if (state->opt_exclusive)
IAudioEndpointVolume_GetMute(state->pEndpointVolumeProxy, &mute);
else
ISimpleAudioVolume_GetMute(state->pAudioVolumeProxy, &mute);
*(bool*)arg = mute;
return CONTROL_OK;
case AOCONTROL_SET_MUTE:
mute = *(bool*)arg;
if (state->opt_exclusive)
IAudioEndpointVolume_SetMute(state->pEndpointVolumeProxy, mute, NULL);
else
ISimpleAudioVolume_SetMute(state->pAudioVolumeProxy, mute, NULL);
return CONTROL_OK;
case AOCONTROL_HAS_PER_APP_VOLUME:
return CONTROL_TRUE;
case AOCONTROL_UPDATE_STREAM_TITLE: {
MP_VERBOSE(state, "Updating stream title to \"%s\"\n", (char*)arg);
wchar_t *title = mp_from_utf8(NULL, (char*)arg);
wchar_t *tmp = NULL;
/* There is a weird race condition in the IAudioSessionControl itself --
it seems that *sometimes* the SetDisplayName does not take effect and it still shows
the old title. Use this loop to insist until it works. */
do {
IAudioSessionControl_SetDisplayName(state->pSessionControlProxy, title, NULL);
SAFE_RELEASE(tmp, CoTaskMemFree(tmp));
IAudioSessionControl_GetDisplayName(state->pSessionControlProxy, &tmp);
} while (lstrcmpW(title, tmp));
SAFE_RELEASE(tmp, CoTaskMemFree(tmp));
talloc_free(title);
return CONTROL_OK;
}
default:
return CONTROL_UNKNOWN;
}
}
static int control_exclusive(struct ao *ao, enum aocontrol cmd, void *arg)
{
struct wasapi_state *state = ao->priv;
switch (cmd) {
case AOCONTROL_GET_VOLUME:
case AOCONTROL_SET_VOLUME:
if (!state->pEndpointVolumeProxy ||
!(state->vol_hw_support & ENDPOINT_HARDWARE_SUPPORT_VOLUME)) {
return CONTROL_FALSE;
}
float volume;
switch (cmd) {
case AOCONTROL_GET_VOLUME:
IAudioEndpointVolume_GetMasterVolumeLevelScalar(
state->pEndpointVolumeProxy,
&volume);
*(ao_control_vol_t *)arg = (ao_control_vol_t){
.left = 100.0f * volume,
.right = 100.0f * volume,
};
return CONTROL_OK;
case AOCONTROL_SET_VOLUME:
volume = ((ao_control_vol_t *)arg)->left / 100.f;
IAudioEndpointVolume_SetMasterVolumeLevelScalar(
state->pEndpointVolumeProxy,
volume, NULL);
return CONTROL_OK;
}
case AOCONTROL_GET_MUTE:
case AOCONTROL_SET_MUTE:
if (!state->pEndpointVolumeProxy ||
!(state->vol_hw_support & ENDPOINT_HARDWARE_SUPPORT_MUTE)) {
return CONTROL_FALSE;
}
BOOL mute;
switch (cmd) {
case AOCONTROL_GET_MUTE:
IAudioEndpointVolume_GetMute(state->pEndpointVolumeProxy,
&mute);
*(bool *)arg = mute;
return CONTROL_OK;
case AOCONTROL_SET_MUTE:
mute = *(bool *)arg;
IAudioEndpointVolume_SetMute(state->pEndpointVolumeProxy,
mute, NULL);
return CONTROL_OK;
}
case AOCONTROL_HAS_PER_APP_VOLUME:
return CONTROL_FALSE;
default:
return CONTROL_UNKNOWN;
}
}
static int control_shared(struct ao *ao, enum aocontrol cmd, void *arg)
{
struct wasapi_state *state = ao->priv;
if (!state->pAudioVolumeProxy)
return CONTROL_UNKNOWN;
float volume;
BOOL mute;
switch(cmd) {
case AOCONTROL_GET_VOLUME:
ISimpleAudioVolume_GetMasterVolume(state->pAudioVolumeProxy,
&volume);
*(ao_control_vol_t *)arg = (ao_control_vol_t){
.left = 100.0f * volume,
.right = 100.0f * volume,
};
return CONTROL_OK;
case AOCONTROL_SET_VOLUME:
volume = ((ao_control_vol_t *)arg)->left / 100.f;
ISimpleAudioVolume_SetMasterVolume(state->pAudioVolumeProxy,
volume, NULL);
return CONTROL_OK;
case AOCONTROL_GET_MUTE:
ISimpleAudioVolume_GetMute(state->pAudioVolumeProxy, &mute);
*(bool *)arg = mute;
return CONTROL_OK;
case AOCONTROL_SET_MUTE:
mute = *(bool *)arg;
ISimpleAudioVolume_SetMute(state->pAudioVolumeProxy, mute, NULL);
return CONTROL_OK;
case AOCONTROL_HAS_PER_APP_VOLUME:
return CONTROL_TRUE;
default:
return CONTROL_UNKNOWN;
}
}
static int control(struct ao *ao, enum aocontrol cmd, void *arg)
{
struct wasapi_state *state = ao->priv;
// common to exclusive and shared
switch (cmd) {
case AOCONTROL_UPDATE_STREAM_TITLE:
if (!state->pSessionControlProxy)
return CONTROL_FALSE;
wchar_t *title = mp_from_utf8(NULL, (char*)arg);
wchar_t *tmp = NULL;
// There is a weird race condition in the IAudioSessionControl itself --
// it seems that *sometimes* the SetDisplayName does not take effect and
// it still shows the old title. Use this loop to insist until it works.
do {
IAudioSessionControl_SetDisplayName(state->pSessionControlProxy,
title, NULL);
SAFE_RELEASE(tmp, CoTaskMemFree(tmp));
IAudioSessionControl_GetDisplayName(state->pSessionControlProxy,
&tmp);
} while (lstrcmpW(title, tmp));
SAFE_RELEASE(tmp, CoTaskMemFree(tmp));
talloc_free(title);
return CONTROL_OK;
}
return state->opt_exclusive ?
control_exclusive(ao, cmd, arg) : control_shared(ao, cmd, arg);
}
static void audio_reset(struct ao *ao)
{
set_thread_state(ao, WASAPI_THREAD_RESET);
}
static void audio_resume(struct ao *ao)
{
set_thread_state(ao, WASAPI_THREAD_RESUME);
}