FormatVideoGetByIndex Method (IMFormat)

VB.Net
C#
Delphi
C++

Sub FormatVideoGetByIndex( _
   ByVal _eFormatType As eMFormatType, _
   ByVal _nIndex As Integer, _
   ByRef _pVidProps As M_VID_PROPS, _
   ByRef _pbsName As String _
)

void FormatVideoGetByIndex( 
   eMFormatType _eFormatType,
   int _nIndex,
   out M_VID_PROPS _pVidProps,
   out string _pbsName
)

procedure FormatVideoGetByIndex( 
    _eFormatType: eMFormatType;
    _nIndex: Integer;
   Out  _pVidProps: M_VID_PROPS;
   Out  _pbsName: String
);

void FormatVideoGetByIndex( 
   eMFormatType _eFormatType,
   int _nIndex,
   [PARAMFLAG::Out] M_VID_PROPS _pVidProps,
   [PARAMFLAG::Out] BSTR* _pbsName
)

Parameters

_eFormatType: type of the format
_nIndex: index of the format
_pVidProps: properties of video format (bitrate, 3D format, type of interlacing, type of scaling, aspet ratio etc.)
_pbsName: full name of format (for example, "3D-HSbS HD720-50p HDYC 1280x720 @ 50.00p 16:9")

Here is example of how to set standard format to the playlist:

Visual Basic
C#
Delphi

Dim myPlaylist As New MPlaylistClass()
Dim vidProps As New M_VID_PROPS()
Dim strFormat As String
Dim nCount As Integer
myPlaylist.FormatVideoGetCount(nCount)
myPlaylist.FormatVideoGetByIndex(eMFormatType.eMFT_Convert, nCount - 1, vidProps, strFormat)
myPlaylist.FormatVideoSet(eMFormatType.eMFT_Convert, vidProps)

MPlaylistClass myPlaylist = new MPlaylistClass();
M_VID_PROPS vidProps = new M_VID_PROPS();
string strFormat;
int nCount;
myPlaylist.FormatVideoGetCount(out nCount);
myPlaylist.FormatVideoGetByIndex(eMFormatType.eMFT_Convert, nCount - 1, out vidProps, out strFormat);
myPlaylist.FormatVideoSet(eMFormatType.eMFT_Convert, ref vidProps);

var
myPlaylist: MPlaylist;
myFormat: IMFormat;
nCount: integer;
vidProps: M_VID_PROPS;
strFormat: string;
begin
myPlaylist:= CreateComObject(CLASS_MPlaylist) as MPlaylist;
myFormat := myPlaylist as IMFormat;
myFormat.FormatVideoGetCount(nCount);
myFormat.FormatVideoGetByIndex(eMFT_Convert, nCount-2, vidProps, strFormat);
myFormat.FormatVideoSet(eMFT_Convert, vidProps);
end;

Reference

IMFormat Interface
IMFormat Members