public HRESULT GetUINT64(Guid guidKey, out ulong punValue)
{
var hr = _type.GetUINT64(guidKey, out punValue);
Trace("guid: " + guidKey.ToName() + " value: " + punValue + " hr: " + hr);
return(hr);
}
public static MFRatio GetFrameRate(IMFMediaType pMediaType)
{
HResult hr;
long i64;
MFRatio fps;
hr = pMediaType.GetUINT64(MFAttributesClsid.MF_MT_FRAME_RATE, out i64);
MFError.ThrowExceptionForHR(hr);
fps.Numerator = (int)(i64 >> 32);
fps.Denominator = (int)i64;
return(fps);
}
public static long GetInt64(this IMFMediaType input, Guid key, long defaultValue = 0)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (input.GetUINT64(key, out var value).IsError)
{
return(defaultValue);
}
return((long)value);
}
public static ulong GetUInt64(this IMFMediaType obj, Guid key, ulong defaultValue = 0)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
if (obj.GetUINT64(key, out var value).IsError)
{
return(defaultValue);
}
return(value);
}
private static int MfGetAttribute2Uint32AsUint64(IMFMediaType pType, Guid guidKey, out int punHigh32, out int punLow32)
{
long attrValue;
var hr = pType.GetUINT64(guidKey, out attrValue);
if (Succeeded(hr))
{
punLow32 = (int)attrValue;
punHigh32 = (int)(attrValue >> 32);
}
else
{
punLow32 = 0;
punHigh32 = 0;
}
return(hr);
}
public static MFRatio GetFrameRate(IMFMediaType pMediaType)
{
int hr;
long i64;
MFRatio fps;
hr = pMediaType.GetUINT64(MFAttributesClsid.MF_MT_FRAME_RATE, out i64);
MFError.ThrowExceptionForHR(hr);
fps.Numerator = (int)(i64 >> 32);
fps.Denominator = (int)i64;
return fps;
}
private static int MFGetAttribute2UINT32asUINT64(IMFMediaType pType, Guid GuidKey, out int punHigh32, out int punLow32)
{
long AttrValue;
int hr = pType.GetUINT64(GuidKey, out AttrValue);
if (Succeeded(hr))
{
punLow32 = (int)AttrValue;
punHigh32 = (int)(AttrValue >> 32);
}
else
{
punLow32 = 0;
punHigh32 = 0;
}
return hr;
}
private static int MfGetAttribute2Uint32AsUint64(IMFMediaType pType, Guid guidKey, out int punHigh32, out int punLow32)
{
long attrValue;
var hr = pType.GetUINT64(guidKey, out attrValue);
if (Succeeded(hr))
{
punLow32 = (int)attrValue;
punHigh32 = (int)(attrValue >> 32);
}
else
{
punLow32 = 0;
punHigh32 = 0;
}
return hr;
}