void TestPreroll()
{
int hr;
int s1, s2;
// Read the value
s1 = m_ims.IsPreroll();
// Change the value
hr = m_ims.SetPreroll(s1 != 0);
Marshal.ThrowExceptionForHR(hr);
// Re-read the value
s2 = m_ims.IsPreroll();
// Check to see if the change took
Debug.Assert(s1 != s2, "Get/Set Preroll");
// put the original value back
hr = m_ims.SetPreroll(s1 == 0);
Marshal.ThrowExceptionForHR(hr);
// Re-read the value
s2 = m_ims.IsPreroll();
// Check to see if the change took
Debug.Assert(s1 == s2, "Get/Set Preroll2");
}
public MediaSample(IMediaSample sample)
{
m_Size = sample.GetSize();
m_ActualDataLength = sample.GetActualDataLength();
m_IsSyncPoint = sample.IsSyncPoint() == 0;
m_IsPreroll = sample.IsPreroll() == 0;
m_IsDiscontinuity = sample.IsDiscontinuity() == 0;
sample.GetTime(out m_TimeStart, out m_TimeEnd);
sample.GetMediaTime(out m_MediaTimeStart, out m_MediaTimeEnd);
m_Buffer = Marshal.AllocCoTaskMem(m_Size);
}
public int SampleCB(double SampleTime, IMediaSample pSample)
{
DateTime dt = DateTime.Now;
lock (this)
{
sb.AppendFormat("{0:T}.{1:D3}: ", dt, dt.Millisecond);
sb.AppendFormat("SampleTime={0:G4}, ", SampleTime);
if (pSample != null)
{
long start = 0, end = 0;
pSample.GetTime(out start, out end);
sb.AppendFormat("Time(start={0}, end={1}), ", start, end);
pSample.GetMediaTime(out start, out end);
sb.AppendFormat("MediaTime(start={0}, end={1}), ", start, end);
int len = pSample.GetActualDataLength();
sb.AppendFormat("data length={0}, ", len);
bool syncpoint = pSample.IsSyncPoint() == 0;
sb.AppendFormat("keyframe={0}", syncpoint);
if (pSample.IsDiscontinuity() == 0)
{
sb.Append(", Discontinuity");
}
if (pSample.IsPreroll() == 0)
{
sb.Append(", Preroll");
}
int n = Math.Min(len, 8);
IntPtr pbuf;
if (pSample.GetPointer(out pbuf) == 0)
{
byte[] buf = new byte[n];
Marshal.Copy(pbuf, buf, 0, n);
sb.Append(", Data=");
for (int i = 0; i < n; i++)
{
sb.AppendFormat("{0:X2}", buf[i]);
}
sb.Append("...");
}
}
else
{
sb.Append("pSample==NULL!");
}
sb.Append(Environment.NewLine);
}
Marshal.ReleaseComObject(pSample);
return(0);
}
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);
}
public MediaSample(IMediaSample sample)
{
m_Size = sample.GetSize();
m_ActualDataLength = sample.GetActualDataLength();
m_IsSyncPoint = sample.IsSyncPoint() == 0;
m_IsPreroll = sample.IsPreroll() == 0;
m_IsDiscontinuity = sample.IsDiscontinuity() == 0;
m_HasTime = sample.GetTime(out m_TimeStart, out m_TimeEnd) == 0;
m_HasMediaTime = sample.GetMediaTime(out m_MediaTimeStart, out m_MediaTimeEnd) == 0;
m_Buffer = Marshal.AllocCoTaskMem(m_Size);
// Copy the media type
AMMediaType mediaType;
if (sample.GetMediaType(out mediaType) == 0)
{
m_MediaType = mediaType;
}
}
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);
}
