MFResize Method (IMFFrame)

Resizes the frame (just scale video frame).

Syntax

VB.Net
C#
Delphi
C++

Sub MFResize( _
   ByVal _fccOutput As eMFCC, _
   ByVal _nWidth As Integer, _
   ByVal _nHeight As Integer, _
   ByVal _nResizeField As Integer, _
   ByRef _ppFrameRes As MFFrame, _
   ByVal _bsPropsList As String, _
   ByVal _bsConverterID As String _
)

void MFResize( 
   eMFCC _fccOutput,
   int _nWidth,
   int _nHeight,
   int _nResizeField,
   out MFFrame _ppFrameRes,
   string _bsPropsList,
   string _bsConverterID
)

procedure MFResize( 
    _fccOutput: eMFCC;
    _nWidth: Integer;
    _nHeight: Integer;
    _nResizeField: Integer;
   Out  _ppFrameRes: MFFrame;
    _bsPropsList: String;
    _bsConverterID: String
);

void MFResize( 
   eMFCC _fccOutput,
   int _nWidth,
   int _nHeight,
   int _nResizeField,
   [PARAMFLAG::Out] MFFrame* _ppFrameRes,
   BSTR* _bsPropsList,
   BSTR* _bsConverterID
)

Parameters

_fccOutput: FCC for output frame
_nWidth: width
_nHeight: height
_nResizeField: a number of field to be scaled (0 means both fields, 1 means the first field, 2 means the second one)
_ppFrameRes: result frame
_bsPropsList: additional properties
_bsConverterID: converter's ID

Example

Here is an example of how to get a frame from a source, resize it and save it into a file:

m_objPreview = new MFPreviewClass();
//Configure preview
m_objPreview.PreviewWindowSet("", panelPreview.Handle.ToInt32());
m_objPreview.PreviewEnable("", 1, 1);
m_objMFReader = new MFReaderClass();
m_objMFReader.ReaderOpen(sourceFileName, "");
m_avProps = new M_AV_PROPS(); // set video format for conversion
m_avProps.vidProps.eVideoFormat = eMVideoFormat.eMVF_HD1080_5994i;
MFFrame pFrame = null;
// Get next frame
if (m_objMFReader != null)
    m_objMFReader.SourceFrameConvertedGetByTime(ref m_avProps, -1, -1, out pFrame, "");
m_objPreview.ReceiverFramePut(pFrame, -1, ""); // show the frame on preview
MFFrame resizedFrame;
pFrame.MFResize(eMFCC.eMFCC_Default, 1000, 700, 0, out resizedFrame, "", "");
resizedFrame.MFVideoSaveToFile(@"c:\resizedTest.png");

Reference

IMFFrame Interface
IMFFrame Members