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Fix volume control on Raspian. Correct some log messages

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Main/Master volume mixer is called "PCM" on Raspian instead of "Master".
This commit is contained in:
Bim Overbohm 2013-05-27 09:44:54 +02:00
parent 01d5f1e085
commit e51dd35166
1 changed files with 24 additions and 20 deletions
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42
src/VolumeControl.cpp
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@ -4,7 +4,11 @@
#if defined(__linux__)
#ifdef _RPI_
const char * VolumeControl::mixerName = "PCM";
#else
const char * VolumeControl::mixerName = "Master";
#endif
const char * VolumeControl::mixerCard = "default";
#endif
@ -60,57 +64,57 @@ void VolumeControl::init()
//open mixer
if (snd_mixer_open(&mixerHandle, 0) >= 0)
{
LOG(LogDebug) << "AudioManager::init() - Opened ALSA mixer";
LOG(LogDebug) << "VolumeControl::init() - Opened ALSA mixer";
//ok. attach to defualt card
if (snd_mixer_attach(mixerHandle, mixerCard) >= 0)
{
LOG(LogDebug) << "AudioManager::init() - Attached to default card";
LOG(LogDebug) << "VolumeControl::init() - Attached to default card";
//ok. register simple element class
if (snd_mixer_selem_register(mixerHandle, NULL, NULL) >= 0)
{
LOG(LogDebug) << "AudioManager::init() - Registered simple element class";
LOG(LogDebug) << "VolumeControl::init() - Registered simple element class";
//ok. load registered elements
if (snd_mixer_load(mixerHandle) >= 0)
{
LOG(LogDebug) << "AudioManager::init() - Loaded mixer elements";
LOG(LogDebug) << "VolumeControl::init() - Loaded mixer elements";
//ok. find elements now
mixerElem = snd_mixer_find_selem(mixerHandle, mixerSelemId);
if (mixerElem != nullptr)
{
//wohoo. good to go...
LOG(LogDebug) << "AudioManager::init() - Mixer initialized";
LOG(LogDebug) << "VolumeControl::init() - Mixer initialized";
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to find mixer elements!";
LOG(LogError) << "VolumeControl::init() - Failed to find mixer elements!";
snd_mixer_close(mixerHandle);
mixerHandle = nullptr;
}
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to load mixer elements!";
LOG(LogError) << "VolumeControl::init() - Failed to load mixer elements!";
snd_mixer_close(mixerHandle);
mixerHandle = nullptr;
}
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to register simple element class!";
LOG(LogError) << "VolumeControl::init() - Failed to register simple element class!";
snd_mixer_close(mixerHandle);
mixerHandle = nullptr;
}
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to attach to default card!";
LOG(LogError) << "VolumeControl::init() - Failed to attach to default card!";
snd_mixer_close(mixerHandle);
mixerHandle = nullptr;
}
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to open ALSA mixer!";
LOG(LogError) << "VolumeControl::init() - Failed to open ALSA mixer!";
}
}
#elif defined(WIN32) || defined(_WIN32)
@ -136,14 +140,14 @@ void VolumeControl::init()
mixerLineControls.cbmxctrl = sizeof(MIXERCONTROL);
if (mixerGetLineControls((HMIXEROBJ)mixerHandle, &mixerLineControls, MIXER_GETLINECONTROLSF_ONEBYTYPE) != MMSYSERR_NOERROR)
{
LOG(LogError) << "AudioManager::getVolume() - Failed to get mixer volume control!";
LOG(LogError) << "VolumeControl::getVolume() - Failed to get mixer volume control!";
mixerClose(mixerHandle);
mixerHandle = nullptr;
}
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to open mixer!";
LOG(LogError) << "VolumeControl::init() - Failed to open mixer!";
}
}
}
@ -166,21 +170,21 @@ void VolumeControl::init()
defaultDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC_SERVER, nullptr, (LPVOID *)&endpointVolume);
if (endpointVolume == nullptr)
{
LOG(LogError) << "AudioManager::init() - Failed to get default audio endpoint volume!";
LOG(LogError) << "VolumeControl::init() - Failed to get default audio endpoint volume!";
}
//release default device. we don't need it anymore
defaultDevice->Release();
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to get default audio endpoint!";
LOG(LogError) << "VolumeControl::init() - Failed to get default audio endpoint!";
}
//release device enumerator. we don't need it anymore
deviceEnumerator->Release();
}
else
{
LOG(LogError) << "AudioManager::init() - Failed to get audio endpoint enumerator!";
LOG(LogError) << "VolumeControl::init() - Failed to get audio endpoint enumerator!";
CoUninitialize();
}
}
@ -266,7 +270,7 @@ int VolumeControl::getVolume() const
}
else
{
LOG(LogError) << "AudioManager::getVolume() - Failed to get mixer volume!";
LOG(LogError) << "VolumeControl::getVolume() - Failed to get mixer volume!";
}
}
else if (endpointVolume != nullptr)
@ -279,7 +283,7 @@ int VolumeControl::getVolume() const
}
else
{
LOG(LogError) << "AudioManager::setVolume() - Failed to get master volume!";
LOG(LogError) << "VolumeControl::getVolume() - Failed to get master volume!";
}
}
@ -347,7 +351,7 @@ void VolumeControl::setVolume(int volume)
mixerControlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
if (mixerSetControlDetails((HMIXEROBJ)mixerHandle, &mixerControlDetails, MIXER_SETCONTROLDETAILSF_VALUE) != MMSYSERR_NOERROR)
{
LOG(LogError) << "AudioManager::setVolume() - Failed to set mixer volume!";
LOG(LogError) << "VolumeControl::setVolume() - Failed to set mixer volume!";
}
}
else if (endpointVolume != nullptr)
@ -359,7 +363,7 @@ void VolumeControl::setVolume(int volume)
}
if (endpointVolume->SetMasterVolumeLevelScalar(floatVolume, nullptr) != S_OK)
{
LOG(LogError) << "AudioManager::setVolume() - Failed to set master volume!";
LOG(LogError) << "VolumeControl::setVolume() - Failed to set master volume!";
}
}
#endif