void TestMediaTime()
{
int hr;
long TimeStart1, TimeEnd1;
long TimeStart2, TimeEnd2;
// Read the value
hr = m_ims.GetMediaTime(out TimeStart1, out TimeEnd1);
Marshal.ThrowExceptionForHR(hr);
// Change the value
hr = m_ims.SetMediaTime(new DsLong(TimeStart1 + 1), new DsLong(TimeEnd1 - 1));
Marshal.ThrowExceptionForHR(hr);
// Re-read the value
hr = m_ims.GetMediaTime(out TimeStart2, out TimeEnd2);
Marshal.ThrowExceptionForHR(hr);
// Check to see if the change took
Debug.Assert(TimeStart1 + 1 == TimeStart2, "Get/Set MediaTime start");
Debug.Assert(TimeEnd1 - 1 == TimeEnd2, "Get/Set MediaTime End");
// Try using nulls
hr = m_ims.SetMediaTime(null, null);
Marshal.ThrowExceptionForHR(hr);
// Read the time, should fail (because of the nulls)
hr = m_ims.GetMediaTime(out TimeStart1, out TimeEnd1);
Debug.Assert(hr == DsResults.E_MediaTimeNotSet, "Get/Set MediaTime null");
// Put it back to where it started
hr = m_ims.SetMediaTime(new DsLong(TimeStart1), new DsLong(TimeEnd1));
Marshal.ThrowExceptionForHR(hr);
}
public static void CopySample(IMediaSample src, IMediaSample dest, bool copySamples)
{
var sourceSize = src.GetActualDataLength();
if (copySamples)
{
IntPtr sourceBuffer;
src.GetPointer(out sourceBuffer);
IntPtr destBuffer;
dest.GetPointer(out destBuffer);
CopyMemory(destBuffer, sourceBuffer, sourceSize);
}
// Copy the sample times
long start, end;
if (src.GetTime(out start, out end) == S_OK)
{
dest.SetTime(start, end);
}
if (src.GetMediaTime(out start, out end) == S_OK)
{
dest.SetMediaTime(start, end);
}
// Copy the media type
AMMediaType mediaType;
var changed = src.GetMediaType(out mediaType) == 0;
if (changed)
{
dest.SetMediaType(mediaType);
DsUtils.FreeAMMediaType(mediaType);
}
dest.SetSyncPoint(src.IsSyncPoint() == S_OK);
dest.SetPreroll(src.IsPreroll() == S_OK);
dest.SetDiscontinuity(src.IsDiscontinuity() == S_OK);
// Copy the actual data length
dest.SetActualDataLength(sourceSize);
}
// Set the timestamps
override public int SetTimeStamps(IMediaSample pSample)
{
int hr;
int iRead = pSample.GetActualDataLength();
long SampleTime = GetTimeFromBytes(iRead);
long TimeStart = m_FSampleTime;
m_FSampleTime = m_FSampleTime + SampleTime;
long TimeStop = m_FSampleTime;
hr = pSample.SetTime(TimeStart, TimeStop);
if (hr >= 0)
{
TimeStart = m_FMediaTime;
m_FMediaTime = m_FMediaTime + SampleTime;
TimeStop = m_FMediaTime;
hr = pSample.SetMediaTime(TimeStart, TimeStop);
DsError.ThrowExceptionForHR(hr);
}
return(hr);
}
public static void CopySample(IMediaSample src, IMediaSample dest, bool copySamples)
{
var sourceSize = src.GetActualDataLength();
if (copySamples)
{
IntPtr sourceBuffer;
src.GetPointer(out sourceBuffer);
IntPtr destBuffer;
dest.GetPointer(out destBuffer);
CopyMemory(destBuffer, sourceBuffer, sourceSize);
}
// Copy the sample times
long start, end;
if (src.GetTime(out start, out end) == S_OK)
{
dest.SetTime(start, end);
}
if (src.GetMediaTime(out start, out end) == S_OK)
{
dest.SetMediaTime(start, end);
}
// Copy the media type
AMMediaType mediaType;
src.GetMediaType(out mediaType);
dest.SetMediaType(mediaType);
DsUtils.FreeAMMediaType(mediaType);
dest.SetSyncPoint(src.IsSyncPoint() == S_OK);
dest.SetPreroll(src.IsPreroll() == S_OK);
dest.SetDiscontinuity(src.IsDiscontinuity() == S_OK);
// Copy the actual data length
dest.SetActualDataLength(sourceSize);
}
// Set the timestamps
public override int SetTimeStamps(IMediaSample pSample)
{
int hr;
int iRead = pSample.GetActualDataLength();
long SampleTime = GetTimeFromBytes(iRead);
long TimeStart = m_FSampleTime;
m_FSampleTime = m_FSampleTime + SampleTime;
long TimeStop = m_FSampleTime;
hr = pSample.SetTime(TimeStart, TimeStop);
if (hr >= 0)
{
TimeStart = m_FMediaTime;
m_FMediaTime = m_FMediaTime + SampleTime;
TimeStop = m_FMediaTime;
hr = pSample.SetMediaTime(TimeStart, TimeStop);
DsError.ThrowExceptionForHR(hr);
}
return hr;
}