protected void CreateMediaSource(string sURL)
{
TRACE("CPlayer::CreateMediaSource");
IMFSourceResolver pSourceResolver;
object pSource;
// Create the source resolver.
MFExtern.MFCreateSourceResolver(out pSourceResolver);
try
{
// Use the source resolver to create the media source.
MFObjectType ObjectType = MFObjectType.Invalid;
pSourceResolver.CreateObjectFromURL(
sURL, // URL of the source.
MFResolution.MediaSource, // Create a source object.
null, // Optional property store.
out ObjectType, // Receives the created object type.
out pSource // Receives a pointer to the media source.
);
// Get the IMFMediaSource interface from the media source.
m_pSource = (IMFMediaSource)pSource;
}
finally
{
// Clean up
Marshal.ReleaseComObject(pSourceResolver);
}
}
protected void CreateMediaSource(string sURL)
{
IMFSourceResolver pSourceResolver;
object pSource;
// Create the source resolver.
int hr = MFExtern.MFCreateSourceResolver(out pSourceResolver);
MFError.ThrowExceptionForHR(hr);
try
{
// Use the source resolver to create the media source.
MFObjectType ObjectType = MFObjectType.Invalid;
hr = pSourceResolver.CreateObjectFromURL(
sURL, // URL of the source.
MFResolution.MediaSource, // Create a source object.
null, // Optional property store.
out ObjectType, // Receives the created object type.
out pSource // Receives a pointer to the media source.
);
MFError.ThrowExceptionForHR(hr);
// Get the IMFMediaSource interface from the media source.
m_pSource = pSource as IMFMediaSource;
}
finally
{
// Clean up
Marshal.ReleaseComObject(pSourceResolver);
}
}
///////////////////////////////////////////////////////////////////////
// Name: CreateMediaSource
// Description: Create a media source from a URL.
//
// sURL: The URL to open.
// ppSource: Receives a pointer to the media source.
///////////////////////////////////////////////////////////////////////
static void CreateMediaSource(string sURL, out IMFMediaSource ppSource)
{
HResult hr;
IMFSourceResolver pSourceResolver;
object pSourceUnk;
// Create the source resolver.
hr = MFExtern.MFCreateSourceResolver(out pSourceResolver);
MFError.ThrowExceptionForHR(hr);
try
{
// Use the source resolver to create the media source.
MFObjectType ObjectType = MFObjectType.Invalid;
hr = pSourceResolver.CreateObjectFromURL(
sURL, // URL of the source.
MFResolution.MediaSource, // Create a source object.
null, // Optional property store.
out ObjectType, // Receives the object type.
out pSourceUnk // Receives a pointer to the source.
);
MFError.ThrowExceptionForHR(hr);
// Get the IMFMediaSource interface from the media source.
ppSource = (IMFMediaSource)pSourceUnk;
}
finally
{
// Clean up.
if (pSourceResolver != null)
{
Marshal.ReleaseComObject(pSourceResolver);
}
}
}
public HResult EndCreateObject(IMFAsyncResult pResult,
out MFObjectType pObjectType,
out object ppObject)
{
pObjectType = MFObjectType.ByteStream;
HResult hr = pResult.GetObject(out ppObject);
if (MFError.Succeeded(hr))
{
IcyScheme icy = (IcyScheme)ppObject;
// Wait for the HttpWebRequest to finish connecting. This
// includes sending the request, and processing the response
// headers and caching some data (see m_FirstBlock).
hr = icy.WaitForConnect();
}
return(hr);
}
static IMFMediaSource GetMediaSource(string sourceFileName)
{
HResult hr;
// Get an IMFMediaSource.
IMFSourceResolver sourceResolver;
hr = MFExtern.MFCreateSourceResolver(out sourceResolver);
MFError.ThrowExceptionForHR(hr);
MFObjectType objectType = MFObjectType.Invalid;
object source;
hr = sourceResolver.CreateObjectFromURL(sourceFileName, MFResolution.MediaSource, null, out objectType, out source);
MFError.ThrowExceptionForHR(hr);
IMFMediaSource mediaSource = (IMFMediaSource)source;
COMBase.SafeRelease(sourceResolver);
sourceResolver = null;
return(mediaSource);
}
////////////////////////////////////////////////////////////////////////////////////////
// Name: CPlayer::CreateMediaSource (Private)
// Description:
// Creates a media source from URL
// Parameter:
// sURL: [in] File URL
// ppMediaSource: [out] Receives the media source
/////////////////////////////////////////////////////////////////////////////////////////
private void CreateMediaSource(
string sURL,
out IMFMediaSource ppMediaSource)
{
Debug.WriteLine("CPlayer::CreateMediaSource");
if (sURL == null)
{
throw new COMException("null pointer", (int)HResult.E_POINTER);
}
HResult hr;
IMFSourceResolver pSourceResolver;
object pSourceUnk;
hr = MFExtern.MFCreateSourceResolver(out pSourceResolver);
MFError.ThrowExceptionForHR(hr);
try
{
// Use the source resolver to create the media source.
MFObjectType ObjectType = MFObjectType.Invalid;
hr = pSourceResolver.CreateObjectFromURL(
sURL, // URL of the source.
MFResolution.MediaSource, // Create a source object.
null, // Optional property store.
out ObjectType, // Receives the created object type.
out pSourceUnk // Receives a pointer to the media source.
);
MFError.ThrowExceptionForHR(hr);
// Get the IMFMediaSource interface from the media source.
ppMediaSource = (IMFMediaSource)pSourceUnk;
}
finally
{
SafeRelease(pSourceResolver);
}
}
public HResult EndCreateObject(
IMFAsyncResult pResult,
out MFObjectType pObjectType,
out object ppObject
)
{
// Make sure we *never* leave this entry point with an exception
try
{
HResult hr;
pObjectType = MFObjectType.Invalid;
ppObject = null;
m_Log.WriteLine("EndCreateObject");
if (pResult == null)
{
throw new COMException("invalid IMFAsyncResult", (int)HResult.E_INVALIDARG);
}
hr = pResult.GetObject(out ppObject);
MFError.ThrowExceptionForHR(hr);
// Minimal sanity check - is it really a media source?
IMFMediaSource pSource = (IMFMediaSource)ppObject;
pObjectType = MFObjectType.MediaSource;
// unneeded SAFE_RELEASE(pSource);
// unneeded SAFE_RELEASE(ppObject);
return(HResult.S_OK);
}
catch (Exception e)
{
ppObject = null;
pObjectType = MFObjectType.Invalid;
return((HResult)Marshal.GetHRForException(e));
}
}
public int EndCreateObject(
IMFAsyncResult pResult,
out MFObjectType pObjectType,
out object ppObject
)
{
// Make sure we *never* leave this entry point with an exception
try
{
int hr;
pObjectType = MFObjectType.Invalid;
ppObject = null;
m_Log.WriteLine("EndCreateObject");
if (pResult == null)
{
throw new COMException("invalid IMFAsyncResult", E_InvalidArgument);
}
hr = pResult.GetObject(out ppObject);
MFError.ThrowExceptionForHR(hr);
// Minimal sanity check - is it really a media source?
IMFMediaSource pSource = (IMFMediaSource)ppObject;
pObjectType = MFObjectType.MediaSource;
// unneeded SAFE_RELEASE(pSource);
// unneeded SAFE_RELEASE(ppObject);
return S_Ok;
}
catch (Exception e)
{
ppObject = null;
pObjectType = MFObjectType.Invalid;
return Marshal.GetHRForException(e);
}
}
