bool CCoreAudioStream::SetPhysicalFormat(AudioStreamBasicDescription* pDesc)
{
if (!pDesc || !m_StreamId)
return false;
std::string formatString;
if (!m_OriginalPhysicalFormat.mFormatID)
{
// Store the original format (as we found it) so that it can be restored later
if (!GetPhysicalFormat(&m_OriginalPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
}
m_physical_format_event.Reset();
OSStatus ret = AudioStreamSetProperty(m_StreamId,
NULL, 0, kAudioStreamPropertyPhysicalFormat, sizeof(AudioStreamBasicDescription), pDesc);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to set physical format for stream 0x%04x. Error = %s",
(uint)m_StreamId, GetError(ret).c_str());
return false;
}
// The AudioStreamSetProperty is not only asynchronious,
// it is also not Atomic, in its behaviour.
// Therefore we check 5 times before we really give up.
// FIXME: failing isn't actually implemented yet.
for(int i = 0; i < 10; ++i)
{
AudioStreamBasicDescription checkPhysicalFormat;
if (!GetPhysicalFormat(&checkPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
if (checkPhysicalFormat.mSampleRate == pDesc->mSampleRate &&
checkPhysicalFormat.mFormatID == pDesc->mFormatID &&
checkPhysicalFormat.mFramesPerPacket == pDesc->mFramesPerPacket)
{
// The right format is now active.
CLog::Log(LOGDEBUG, "CCoreAudioStream::SetPhysicalFormat: "
"Physical format for stream 0x%04x. now active (%s)",
(uint)m_StreamId, StreamDescriptionToString(checkPhysicalFormat, formatString));
break;
}
m_physical_format_event.WaitMSec(100);
}
return true;
}
bool CCoreAudioStream::SetPhysicalFormat(AudioStreamBasicDescription* pDesc)
{
if (!pDesc || !m_StreamId)
return false;
if (!m_OriginalPhysicalFormat.mFormatID)
{
if (!GetPhysicalFormat(m_StreamId, &m_OriginalPhysicalFormat)) // Store the original format (as we found it) so that it can be restored later
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: Unable to retrieve current physical format for stream 0x%04x.", m_StreamId);
return false;
}
}
OSStatus ret = AudioStreamSetProperty(m_StreamId, NULL, 0, kAudioStreamPropertyPhysicalFormat, sizeof(AudioStreamBasicDescription), pDesc);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetVirtualFormat: Unable to set physical format for stream 0x%04x. Error = 0x%08x (%4.4s)", m_StreamId, ret, CONVERT_OSSTATUS(ret));
return false;
}
return true;
}
bool CCoreAudioStream::SetPhysicalFormat(AudioStreamBasicDescription* pDesc)
{
if (!pDesc || !m_StreamId)
return false;
std::string formatString;
// suppress callbacks for the default output device change
// for the next 2 seconds because setting format
// might trigger a change (when setting/unsetting an encoded
// passthrough format)
CCoreAudioDevice::SuppressDefaultOutputDeviceCB(2000);
if (!m_OriginalPhysicalFormat.mFormatID)
{
// Store the original format (as we found it) so that it can be restored later
if (!GetPhysicalFormat(&m_OriginalPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
}
m_physical_format_event.Reset();
AudioObjectPropertyAddress propertyAddress;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
propertyAddress.mSelector = kAudioStreamPropertyPhysicalFormat;
UInt32 propertySize = sizeof(AudioStreamBasicDescription);
OSStatus ret = AudioObjectSetPropertyData(m_StreamId, &propertyAddress, 0, NULL, propertySize, pDesc);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to set physical format for stream 0x%04x. Error = %s",
(uint)m_StreamId, GetError(ret).c_str());
return false;
}
// The AudioStreamSetProperty is not only asynchronious,
// it is also not Atomic, in its behaviour.
// Therefore we check 5 times before we really give up.
// FIXME: failing isn't actually implemented yet.
for(int i = 0; i < 10; ++i)
{
AudioStreamBasicDescription checkPhysicalFormat;
if (!GetPhysicalFormat(&checkPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
if (checkPhysicalFormat.mSampleRate == pDesc->mSampleRate &&
checkPhysicalFormat.mFormatID == pDesc->mFormatID &&
checkPhysicalFormat.mFramesPerPacket == pDesc->mFramesPerPacket &&
checkPhysicalFormat.mChannelsPerFrame == pDesc->mChannelsPerFrame)
{
// The right format is now active.
CLog::Log(LOGDEBUG, "CCoreAudioStream::SetPhysicalFormat: "
"Physical format for stream 0x%04x. now active (%s)",
(uint)m_StreamId, StreamDescriptionToString(checkPhysicalFormat, formatString));
break;
}
m_physical_format_event.WaitMSec(100);
}
return true;
}