/// <summary>
/// Resize video
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <returns></returns>
public int ResizeVideo(short width, short height)
{
TRACE(string.Format("ResizeVideo: {0}x{1}", width, height));
int hr = S_Ok;
if (m_pVideoDisplay != null)
{
try
{
MFRect rcDest = new MFRect();
MFVideoNormalizedRect nRect = new MFVideoNormalizedRect();
nRect.left = 0;
nRect.right = 1;
nRect.top = 0;
nRect.bottom = 1;
rcDest.left = 0;
rcDest.top = 0;
rcDest.right = width;
rcDest.bottom = height;
m_pVideoDisplay.SetVideoPosition(nRect, rcDest);
}
catch (Exception e)
{
hr = Marshal.GetHRForException(e);
}
}
return(hr);
}
public HResult ResizeVideo(short width, short height)
{
HResult hr = HResult.S_OK;
TRACE(string.Format("ResizeVideo: {0}x{1}", width, height));
if (m_pVideoDisplay != null)
{
try
{
MFRect rcDest = new MFRect();
MFVideoNormalizedRect nRect = new MFVideoNormalizedRect();
nRect.left = 0;
nRect.right = 1;
nRect.top = 0;
nRect.bottom = 1;
rcDest.left = 0;
rcDest.top = 0;
rcDest.right = width;
rcDest.bottom = height;
hr = m_pVideoDisplay.SetVideoPosition(nRect, rcDest);
MFError.ThrowExceptionForHR(hr);
}
catch (Exception ce)
{
hr = (HResult)Marshal.GetHRForException(ce);
}
}
return(hr);
}
/// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
/// <summary>
/// Handle size changed events on this control
/// </summary>
/// <param name="errMsg">the error message</param>
/// <param name="ex">the exception. Can be null</param>
/// <history>
/// 01 Nov 18 Cynic - Originally Written
/// </history>
private void ctlTantaEVRStreamDisplay_SizeChanged(object sender, EventArgs e)
{
LogMessage("ctlTantaEVRStreamDisplay_SizeChanged");
HResult hr;
if (evrVideoDisplay == null)
{
return;
}
try
{
// we are going to use the size changed event to reset the size of the video on the display.
// This is controlled by two windows.
// The source window determines which portion of the video is displayed. It is specified in
// normalized coordinates. In other words, a value between 0 and 1. To display the entire video
// image we would set the source rectangle to { 0, 0, 1, 1}. To display the bottom right quarter
// we would set it to { 0.75f, 0.75f, 1, 1}. The default source rectangle is { 0, 0, 1, 1}.
// The destination rectangle defines a rectangle within the clipping window (the video surface) where the video appears.
// in this control this is the surface of a child panel control. This values is specified in pixels, relative to
// the client area of the control. To fill the entire control, set the destination rectangle to { 0, 0, width, height},
// where width and height are dimensions of the window client area.
MFRect destinationRect = new MFRect();
MFVideoNormalizedRect sourceRect = new MFVideoNormalizedRect();
// populate a MFVideoNormalizedRect structure that specifies the source rectangle.
// This parameter can be NULL. If this parameter is NULL, the source rectangle does not change.
sourceRect.left = 0;
sourceRect.right = 1;
sourceRect.top = 0;
sourceRect.bottom = 1;
// populate the destination rectangle. This parameter can be NULL. If this parameter is NULL,
// the destination rectangle does not change.
destinationRect.left = 0;
destinationRect.top = 0;
destinationRect.right = panelDisplayPanel.Width;
destinationRect.bottom = panelDisplayPanel.Height;
// now set the video display coordinates
hr = evrVideoDisplay.SetVideoPosition(sourceRect, destinationRect);
if (hr != HResult.S_OK)
{
throw new Exception("ctlTantaEVRStreamDisplay_SizeChanged failed. Err=" + hr.ToString());
}
}
catch (Exception ex)
{
LogMessage("ctlTantaEVRStreamDisplay_SizeChanged failed exception happened. ex=" + ex.Message);
// NotifyPlayerErrored(ex.Message, ex);
}
}
public bool HitTest(Point pt)
{
if (m_pMapper == null)
{
throw new COMException("null mapper", MFError.MF_E_INVALIDREQUEST);
}
int hr = 0;
bool bHit = false;
float x = -1, y = -1;
// Normalize the coordinates (ie, calculate them as a percentage of
// the video window's entire client area).
Rectangle r = m_hwndVideo.ClientRectangle;
MFRect rc = new MFRect(r.Left, r.Top, r.Right, r.Bottom);
float x1 = (float)pt.X / rc.right;
float y1 = (float)pt.Y / rc.bottom;
// Map these coordinates into the coordinate space of the substream.
m_pMapper.MapOutputCoordinateToInputStream(
x1, y1, // Output coordinates
0, // Output stream (the mixer only has one)
1, // Input stream (1 = substream)
out x, out y // Receives the normalized input coordinates.
);
// If the mapped coordinates fall within [0-1], it's a hit.
if (Succeeded(hr))
{
bHit = ((x >= 0) && (x <= 1) && (y >= 0) && (y <= 1));
}
if (bHit)
{
// Store the hit point.
// We adjust the hit point by the substream scaling factor, so that the
// hit point is now scaled to the reference stream.
// Example:
// - The hit point is (0.5,0.5), the center of the image.
// - The scaling factor is 0.5, so the substream image is 50% the size
// of the reference stream.
// The adjusted hit point is (0.25,0.25) FROM the origin of the substream
// rectangle but IN units of the reference stream. See DShowPlayer::Track
// for where this is used.
m_ptHitTrack = new PointF(x * m_fScale, y * m_fScale);
}
return(bHit ? true : false);
}
//-----------------------------------------------------------------------------
// SetDestinationRect
//
// Sets the region within the video window where the video is drawn.
//-----------------------------------------------------------------------------
public void SetDestinationRect(MFRect rcDest)
{
if (!m_rcDestRect.Equals(rcDest))
{
lock (this)
{
m_rcDestRect.left = rcDest.left;
m_rcDestRect.right = rcDest.right;
m_rcDestRect.top = rcDest.top;
m_rcDestRect.bottom = rcDest.bottom;
UpdateDestRect();
}
}
}
void VideoInternalWindow_Resize(object sender, EventArgs e)
{
int top = 0;
int left = 0;
int width = this.Width;
int height = this.Height;
if (_detachedWindow != null)
{
top = _detachedWindow.ClientRectangle.Top;
left = _detachedWindow.ClientRectangle.Left;
width = _detachedWindow.ClientRectangle.Width;
height = _detachedWindow.ClientRectangle.Height;
}
if (_isInit)
{
if (_vw != null)
{
_vw.SetWindowPosition(top, left, width, height);
}
else if (_evr != null & !_delayedInit)
{
try
{
MFRect rcDest = new MFRect();
MFVideoNormalizedRect nRect = new MFVideoNormalizedRect();
nRect.left = 0;
nRect.right = 1;
nRect.top = 0;
nRect.bottom = 1;
rcDest.left = top;
rcDest.top = left;
rcDest.right = width;
rcDest.bottom = height;
_evr.SetVideoPosition(nRect, rcDest);
}
catch (Exception ex)
{
#if DEBUG
MessageBox.Show(ex.Message, "Failed to set EVR Window Position");
#endif
}
}
}
}
protected IDirect3DSurface9 m_pSurfaceRepaint; // Surface for repaint requests.
#endregion
public D3DPresentEngine()
{
m_iFrames = 0;
m_hwnd = IntPtr.Zero;
m_DeviceResetToken = 0;
m_pD3D9 = null;
m_pDevice = null;
m_pDeviceManager = null;
m_pSurfaceRepaint = null;
m_rcDestRect = new MFRect();
m_DisplayMode = new D3DDISPLAYMODE();
InitializeD3D();
CreateD3DDevice();
}
//-----------------------------------------------------------------------------
// UpdateDestRect
//
// Updates the target rectangle by clipping it to the video window's client
// area.
//
// Called whenever the application sets the video window or the destination
// rectangle.
//-----------------------------------------------------------------------------
protected void UpdateDestRect()
{
if (m_hwnd != IntPtr.Zero)
{
MediaFoundation.Misc.MFRect rcView = new MFRect();
GetClientRect(m_hwnd, rcView);
// Clip the destination rectangle to the window's client area.
if (m_rcDestRect.right > rcView.right)
{
m_rcDestRect.right = rcView.right;
}
if (m_rcDestRect.bottom > rcView.bottom)
{
m_rcDestRect.bottom = rcView.bottom;
}
}
}
protected static extern bool GetClientRect(
IntPtr hwnd, // handle to a window
[Out] MFRect r // determine return value
);
private void InitializeEVR(IBaseFilter pEVR, int dwStreams, out IMFVideoDisplayControl ppDisplay)
{
IMFVideoRenderer pRenderer;
IMFVideoDisplayControl pDisplay;
IEVRFilterConfig pConfig;
IMFVideoPresenter pPresenter;
// Before doing anything else, set any custom presenter or mixer.
// Presenter?
if (m_clsidPresenter != Guid.Empty)
{
Type type = Type.GetTypeFromCLSID(m_clsidPresenter);
// An error here means that the custom presenter sample from
// http://mfnet.sourceforge.net hasn't been installed or
// registered.
pPresenter = (IMFVideoPresenter)Activator.CreateInstance(type);
try
{
pRenderer = (IMFVideoRenderer)pEVR;
pRenderer.InitializeRenderer(null, pPresenter);
}
finally
{
//Marshal.ReleaseComObject(pPresenter);
}
}
// Continue with the rest of the set-up.
// Set the video window.
object o;
IMFGetService pGetService = null;
pGetService = (IMFGetService)pEVR;
pGetService.GetService(MFServices.MR_VIDEO_RENDER_SERVICE, typeof(IMFVideoDisplayControl).GUID, out o);
try
{
pDisplay = (IMFVideoDisplayControl)o;
}
catch
{
Marshal.ReleaseComObject(o);
throw;
}
try
{
// Set the number of streams.
pDisplay.SetVideoWindow(m_hwndVideo.Handle);
if (dwStreams > 1)
{
pConfig = (IEVRFilterConfig)pEVR;
pConfig.SetNumberOfStreams(dwStreams);
}
// Set the display position to the entire window.
Rectangle r = m_hwndVideo.ClientRectangle;
MFRect rc = new MFRect(r.Left, r.Top, r.Right, r.Bottom);
pDisplay.SetVideoPosition(null, rc);
// Return the IMFVideoDisplayControl pointer to the caller.
ppDisplay = pDisplay;
}
finally
{
//Marshal.ReleaseComObject(pDisplay);
}
m_pMixer = null;
}
public void Track(Point pt)
{
if (m_pMixer == null || m_pMapper == null)
{
throw new COMException("null mixer or mapper", MFError.MF_E_INVALIDREQUEST);
}
Rectangle r = m_hwndVideo.ClientRectangle;
MFRect rc = new MFRect(r.Left, r.Top, r.Right, r.Bottom);
// x, y: Mouse coordinates, normalized relative to the composition rectangle.
float x = (float)pt.X / rc.right;
float y = (float)pt.Y / rc.bottom;
// Map the mouse coordinates to the reference stream.
m_pMapper.MapOutputCoordinateToInputStream(
x, y, // Output coordinates
0, // Output stream (the mixer only has one)
0, // Input stream (0 = ref stream)
out x, out y // Receives the normalized input coordinates.
);
// Offset by the original hit point.
x -= m_ptHitTrack.X;
y -= m_ptHitTrack.Y;
float max_offset = 1.0f - m_fScale; // Maximum left and top positions for the substream.
MFVideoNormalizedRect nrcDest = new MFVideoNormalizedRect();
if (x < 0)
{
nrcDest.left = 0;
nrcDest.right = m_fScale;
}
else if (x > max_offset)
{
nrcDest.right = 1;
nrcDest.left = max_offset;
}
else
{
nrcDest.left = x;
nrcDest.right = x + m_fScale;
}
if (y < 0)
{
nrcDest.top = 0;
nrcDest.bottom = m_fScale;
}
else if (y > max_offset)
{
nrcDest.bottom = 1;
nrcDest.top = max_offset;
}
else
{
nrcDest.top = y;
nrcDest.bottom = y + m_fScale;
}
// Set the new position.
m_pMixer.SetStreamOutputRect(1, nrcDest);
}
private void SetVideoPositions()
{
var hiddenWindowContentSize = _hiddenWindow.ContentPixelSize;
var screenWidth = Convert.ToInt32(Math.Round(hiddenWindowContentSize.Width));
var screenHeight = Convert.ToInt32(Math.Round(hiddenWindowContentSize.Height));
_logger.Info("window content width: {0}, window height: {1}", screenWidth, screenHeight);
// Set the display position to the entire window.
var rc = new MFRect(0, 0, screenWidth, screenHeight);
_mPDisplay.SetVideoPosition(null, rc);
//_mPDisplay.SetFullscreen(true);
// Get Aspect Ratio
int aspectX;
int aspectY;
decimal heightAsPercentOfWidth = 0;
var basicVideo2 = (IBasicVideo2)m_graph;
basicVideo2.GetPreferredAspectRatio(out aspectX, out aspectY);
var sourceHeight = 0;
var sourceWidth = 0;
_basicVideo.GetVideoSize(out sourceWidth, out sourceHeight);
if (aspectX == 0 || aspectY == 0 || sourceWidth > 0 || sourceHeight > 0)
{
aspectX = sourceWidth;
aspectY = sourceHeight;
}
if (aspectX > 0 && aspectY > 0)
{
heightAsPercentOfWidth = decimal.Divide(aspectY, aspectX);
}
// Adjust Video Size
var iAdjustedHeight = 0;
if (aspectX > 0 && aspectY > 0)
{
var adjustedHeight = Convert.ToDouble(heightAsPercentOfWidth * screenWidth);
iAdjustedHeight = Convert.ToInt32(Math.Round(adjustedHeight));
}
//SET MADVR WINDOW TO FULL SCREEN AND SET POSITION
if (screenHeight >= iAdjustedHeight && iAdjustedHeight > 0)
{
double totalMargin = (screenHeight - iAdjustedHeight);
var topMargin = Convert.ToInt32(Math.Round(totalMargin / 2));
_basicVideo.SetDestinationPosition(0, topMargin, screenWidth, iAdjustedHeight);
}
else if (screenHeight < iAdjustedHeight && iAdjustedHeight > 0)
{
var adjustedWidth = Convert.ToDouble(screenHeight / heightAsPercentOfWidth);
var iAdjustedWidth = Convert.ToInt32(Math.Round(adjustedWidth));
if (iAdjustedWidth == 1919)
{
iAdjustedWidth = 1920;
}
double totalMargin = (screenWidth - iAdjustedWidth);
var leftMargin = Convert.ToInt32(Math.Round(totalMargin / 2));
_basicVideo.SetDestinationPosition(leftMargin, 0, iAdjustedWidth, screenHeight);
}
_videoWindow.SetWindowPosition(0, 0, screenWidth, screenHeight);
}
