const char* StreamDescriptionToString(AudioStreamBasicDescription desc, CStdString& str)
{
UInt32 formatId = desc.mFormatID;
char* fourCC = UInt32ToFourCC(&formatId);
switch (desc.mFormatID)
{
case kAudioFormatLinearPCM:
str.Format("[%4.4s] %s%u Channel %u-bit %s (%uHz)",
fourCC,
(desc.mFormatFlags & kAudioFormatFlagIsNonMixable) ? "" : "Mixable ",
desc.mChannelsPerFrame,
desc.mBitsPerChannel,
(desc.mFormatFlags & kAudioFormatFlagIsFloat) ? "Floating Point" : "Signed Integer",
(UInt32)desc.mSampleRate);
break;
case kAudioFormatAC3:
str.Format("[%4.4s] AC-3/DTS (%uHz)", fourCC, (UInt32)desc.mSampleRate);
break;
case kAudioFormat60958AC3:
str.Format("[%4.4s] AC-3/DTS for S/PDIF (%uHz)", fourCC, (UInt32)desc.mSampleRate);
break;
default:
str.Format("[%4.4s]", fourCC);
break;
}
return str.c_str();
}
const char* StreamDescriptionToString(AudioStreamBasicDescription desc, std::string &str)
{
UInt32 formatId = desc.mFormatID;
char fourCC[5];
fourCC[0]='\0';
strncat(fourCC, UInt32ToFourCC(&formatId), 4);
std::stringstream sstr;
switch (desc.mFormatID)
{
case kAudioFormatLinearPCM:
sstr << "["
<< fourCC
<< "] "
<< ((desc.mFormatFlags & kAudioFormatFlagIsNonMixable) ? "" : "Mixable " )
<< ((desc.mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? "Non-" : "" )
<< "Interleaved "
<< desc.mChannelsPerFrame
<< " Channel "
<< desc.mBitsPerChannel
<< "-bit "
<< ((desc.mFormatFlags & kAudioFormatFlagIsFloat) ? "Floating Point " : "Signed Integer ")
<< ((desc.mFormatFlags & kAudioFormatFlagIsBigEndian) ? "BE" : "LE")
<< " ("
<< (UInt32)desc.mSampleRate
<< "Hz)";
str = sstr.str();
break;
case kAudioFormatAC3:
sstr << "["
<< fourCC
<< "] "
<< ((desc.mFormatFlags & kAudioFormatFlagIsBigEndian) ? "BE" : "LE")
<< " AC-3/DTS ("
<< (UInt32)desc.mSampleRate
<< "Hz)";
str = sstr.str();
break;
case kAudioFormat60958AC3:
sstr << "["
<< fourCC
<< "] AC-3/DTS for S/PDIF ("
<< (UInt32)desc.mSampleRate
<< "Hz)";
str = sstr.str();
break;
default:
sstr << "["
<< fourCC
<< "]";
break;
}
return str.c_str();
}