Pb depuis passage à win 8.1

**davidmarli** · 14/11/2013, 20h24

Bonjour,

j'utilise delphi 2010.
J'ai un prog qui fonctionnait très bien sous win 7 : ce dernier me permettait d'afficher une vidéo dans un panel. On pouvait se déplacer dans le timing et voir l'affichage corrrespondant.
Pour cela j'utilise l'unité evr.pas
Depuis le passage à win 8.1, l'affichage ne se fait pas (le fond reste vierge).
En revanche, la durée de la video est bien rapportée par un (FGraph as imediaposition).get_duration(posmax);

L'initialisation se fait comme suit :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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 if not Succeeded(CoCreateInstance(CLSID_FilterGraph, nil,
      CLSCTX_INPROC_SERVER, IID_IGraphBuilder, FGraph)) then
  begin
    MessageDlg('Could not create the Filtergraph', mtError, [mbOk], -1);
    exit;
  end;
  if not Succeeded(CoCreateInstance(CLSID_EnhancedVideoRenderer, nil,
      CLSCTX_INPROC, IID_IBaseFilter, FEVR)) then
  begin
    MessageDlg(
      'Could not create the Enhanced video renderer. Please check if evr.dll is installed and registered.', mtError, [mbOk], -1);
    exit;
  end;
  FGraph.AddFilter(FEVR, StringToOLESTR('EVR'));
  (FEVR as IMFGetService).GetService(MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl,FDisplayControl);
 
  FDisplayControl.SetVideoWindow(Panel1.Handle);
 
FGraph.RenderFile(PWideChar(filename), nil);

Merci pour votre aide.

**ShaiLeTroll** · 15/11/2013, 14h10

tu utilises manuellement les interfaces Microsoft !
Est-ce un extrait de evr.pas
Est-ce celle du MFPack ?
Ton "evr.pas" n'est-ce pas juste une série de déclaration des interfaces ?

Pour comparer, très rapidement :

As-tu essayé le TMediaPlayer, une encaspulation fourni par Embarcadero des fonctions vidéos de bases de Windows

l'Active du Windows Media Player installé sur l'OS voir http://jlelong.developpez.com/articles/delphi/activex/windows-media-player/

Evidement, il te faut les CODECS installés sur Windows, mais le 8.1 doit en avoir un tas par défaut de pré-installé !

**davidmarli** · 16/11/2013, 18h25

Bonjour,

merci pour votre réponse.
Alors le morceau de code ci dessus est dans mon soft.
Voici une copie du copie evr9.pas :

Code :

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*****************************************************************}
{                                                                 }
{            CodeGear Delphi Runtime Library                      }
{            EVR9.pas interface unit                              }
{                                                                 }
{            Copyright (c) 2007 Sebastian Zierer                  }
{            Converted 20 Feb 2007 Sebastian Zierer               }
{            Last modified 19 Apr 2007 Sebastian Zierer           }
{            Version 1.0                                          }
{                                                                 }
{*****************************************************************}
 
{*****************************************************************}
{                                                                 }
{ The contents of this file are subject to the Mozilla Public     }
{ License Version 1.1 (the "License"). you may not use this file  }
{ except in compliance with the License. You may obtain a copy of }
{ the License at <a href="http://www.mozilla.org/MPL/MPL-1.1.html" target="_blank">http://www.mozilla.org/MPL/MPL-1.1.html</a>          }
{                                                                 }
{ Software distributed under the License is distributed on an     }
{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or  }
{ implied. See the License for the specific language governing    }
{ rights and limitations under the License.                       }
{                                                                 }
{  The original files are:                                        }
{    evr.idl                                                      }
{                                                                 }
{ The original code is: EVR9.pas, released 20 January 2007        }
{                                                                 }
{ The initial developer of the Pascal code is                     }
{ Sebastian Zierer.                                               }
{                                                                 }
{ Portions created by Microsoft are                               }
{ Copyright (C) 1995-2006 Microsoft Corporation.                  }
{                                                                 }
{ Portions created by Sebastian Zierer are                        }
{ Copyright (C) 2007 Sebastian Zierer                             }
{ All Rights Reserved.                                            }
{                                                                 }
{ Contributor(s):                                                 }
{                                                                 }
{ Notes:                                                          }
{                                                                 }
{ Modification history:                                           }
{                                                                 }
{ Known Issues:                                                   }
{                                                                 }
{*****************************************************************}
 
unit EVR9;
 
interface
 
uses
  Windows, ActiveX, DirectShow9;
 
{$MINENUMSIZE 4}
 
{$IFNDEF conditionalexpressions}
  {$DEFINE norecprocs}          // Delphi 5 or less
{$ENDIF}
 
{$IFDEF conditionalexpressions} // Delphi 6+
  {$IF compilerversion < 18}    // Delphi 2005 or less
    {$DEFINE norecprocs}     
  {$IFEND}
{$ENDIF}
 
 
//=============================================================================
// Description:
//
//  Service GUID used by IMFGetService::GetService to retrieve interfaces from
//  the renderer or the presenter.
//
const
  SID_IMFVideoProcessor = '{6AB0000C-FECE-4d1f-A2AC-A9573530656E}';
  SID_IMFVideoMixerBitmap = '{814C7B20-0FDB-4eec-AF8F-F957C8F69EDC}';
  SID_IMFStreamSink = '{6ef2a660-47c0-4666-b13d-cbb717f2fa2c}';
  SID_IEVRFilterConfig = '{83E91E85-82C1-4EA7-801D-85DC50B75086}';
  SID_IMFVideoDisplayControl = '{A490B1E4-AB84-4D31-A1B2-181E03B1077A}';
  SID_IMFDesiredSample = '{56C294D0-753E-4260-8D61-A3D8820B1D54}';
  SID_IMFVideoPositionMapper = '{1F6A9F17-E70B-4E24-8AE4-0B2C3BA7A4AE}';
  SID_IMFVideoDeviceID = '{A38D9567-5A9C-4F3C-B293-8EB415B279BA}';
  SID_IMFVideoMixerControl = '{A5C6C53F-C202-4AA5-9695-175BA8C508A5}';
  SID_IMFGetService = '{FA993888-4383-415A-A930-DD472A8CF6F7}';
  SID_IMFVideoRenderer = '{DFDFD197-A9CA-43D8-B341-6AF3503792CD}';
  SID_IMFTrackedSample = '{245BF8E9-0755-40F7-88A5-AE0F18D55E17}';
  SID_IMFTopologyServiceLookup = '{fa993889-4383-415a-a930-dd472a8cf6f7}';
  SID_IMFTopologyServiceLookupClient = '{fa99388a-4383-415a-a930-dd472a8cf6f7}';
  SID_IEVRTrustedVideoPlugin = '{83A4CE40-7710-494b-A893-A472049AF630}';
 
var
  IID_IMFTrackedSample: TGUID = SID_IMFTrackedSample;
  IID_IMFVideoDisplayControl: TGUID = SID_IMFVideoDisplayControl; // GetService MR_VIDEO_RENDER_SERVICE
  IID_IMFVideoPresenter: TGUID = '{29AFF080-182A-4A5D-AF3B-448F3A6346CB}';
  IID_IMFVideoPositionMapper: TGUID = SID_IMFVideoPositionMapper; // GetService MR_VIDEO_RENDER_SERVICE
  IID_IMFDesiredSample: TGUID = SID_IMFDesiredSample;
  IID_IMFVideoMixerControl: TGUID = SID_IMFVideoMixerControl;     // GetService MR_VIDEO_MIXER_SERVICE
  IID_IMFVideoRenderer: TGUID = SID_IMFVideoRenderer;
  IID_IMFVideoDeviceID: TGUID = SID_IMFVideoDeviceID;
  IID_IEVRFilterConfig: TGUID = SID_IEVRFilterConfig;
  IID_IMFTopologyServiceLookup: TGUID = SID_IMFTopologyServiceLookup;
  IID_IMFTopologyServiceLookupClient: TGUID = SID_IMFTopologyServiceLookupClient;
  IID_IEVRTrustedVideoPlugin: TGUID = SID_IEVRTrustedVideoPlugin;
 
  CLSID_EnhancedVideoRenderer: TGUID = '{FA10746C-9B63-4B6C-BC49-FC300EA5F256}';
  CLSID_MFVideoMixer9: TGUID = '{E474E05A-AB65-4f6A-827C-218B1BAAF31F}';
  CLSID_MFVideoPresenter9: TGUID = '{98455561-5136-4D28-AB08-4CEE40EA2781}';
  CLSID_EVRTearlessWindowPresenter9: TGUID = '{A0A7A57B-59B2-4919-A694-ADD0A526C373}';
 
  MR_VIDEO_RENDER_SERVICE: TGUID = '{1092A86c-AB1A-459A-A336-831FBC4D11FF}';
  MR_VIDEO_MIXER_SERVICE: TGUID =        '{073cd2fc-6cf4-40b7-8859-e89552c841f8}';
  MR_VIDEO_ACCELERATION_SERVICE: TGUID = '{efef5175-5c7d-4ce2-bbbd-34ff8bca6554}';
  MR_BUFFER_SERVICE: TGUID =             '{a562248c-9ac6-4ffc-9fba-3af8f8ad1a4d}';
 
  VIDEO_ZOOM_RECT: TGUID = '{7aaa1638-1b7f-4c93-bd89-5b9c9fb6fcf0}';
 
 
type
  IMFVideoPositionMapper = interface(IUnknown)
    [SID_IMFVideoPositionMapper]
    function MapOutputCoordinateToInputStream(
      xOut: Single; yOut: Single; dwOutputStreamIndex: DWORD;
      dwInputStreamIndex: DWORD; out pxIn: Single; out pyIn: Single): HResult; stdcall;
  end;
 
  IMFVideoDeviceID = interface(IUnknown)
    [SID_IMFVideoDeviceID]
    function GetDeviceID(out pDeviceID: TIID): HResult; stdcall;
  end;
 
const
  MFVideoARMode_None             = $00000000;
  MFVideoARMode_PreservePicture  = $00000001;
  MFVideoARMode_PreservePixel    = $00000002;
  MFVideoARMode_NonLinearStretch = $00000004;
  MFVideoARMode_Mask             = $00000007;
 
//=============================================================================
// Description:
//
//  The rendering preferences used by the video presenter object.
//
const  // MFVideoRenderPrefs
  // Do not paint color keys (default off)
  MFVideoRenderPrefs_DoNotRenderBorder           = $00000001;
  // Do not clip to monitor that has largest amount of video (default off)
  MFVideoRenderPrefs_DoNotClipToDevice           = $00000002;
  MFVideoRenderPrefs_Mask                        = $00000003;
 
type
  PMFVideoNormalizedRect = ^TMFVideoNormalizedRect;
  TMFVideoNormalizedRect = record
    left: Single;
    top: Single;
    right: Single;
    bottom: Single;
    {$IFNDEF norecprocs}
    procedure Init(ALeft, ATop, ARight, ABottom: Single);
    {$ENDIF}
  end;
 
type
  IMFVideoDisplayControl = interface(IUnknown)
    [SID_IMFVideoDisplayControl]
    function GetNativeVideoSize({unique} out pszVideo: TSIZE; {unique} out pszARVideo: TSIZE): HResult; stdcall;
    function GetIdealVideoSize({unique} out pszMin: TSIZE; {unique} out pszMax: TSIZE): HResult; stdcall;
    function SetVideoPosition({unique} pnrcSource: PMFVideoNormalizedRect; {unique} prcDest: PRECT): HResult; stdcall;
    function GetVideoPosition(out pnrcSource: TMFVideoNormalizedRect; out prcDest: TRECT): HResult; stdcall;
    function SetAspectRatioMode(dwAspectRatioMode: DWORD): HResult; stdcall;
    function GetAspectRatioMode(out pdwAspectRatioMode: DWORD): HResult; stdcall;
    function SetVideoWindow(hwndVideo: HWND): HResult; stdcall;
    function GetVideoWindow(out phwndVideo: HWND): HResult; stdcall;
    function RepaintVideo: HResult; stdcall;
    function GetCurrentImage(pBih: PBITMAPINFOHEADER; out lpDib; out pcbDib: DWORD; {unique} pTimeStamp: PInt64): HResult; stdcall;
    function SetBorderColor(Clr: COLORREF): HResult; stdcall;
    function GetBorderColor(out pClr: COLORREF): HResult; stdcall;
    function SetRenderingPrefs(dwRenderFlags: DWORD): HResult; stdcall; // a combination of MFVideoRenderPrefs
    function GetRenderingPrefs(out pdwRenderFlags: DWORD): HResult; stdcall;
    function SetFullscreen(fFullscreen: Boolean): HResult; stdcall;
    function GetFullscreen(out pfFullscreen: Boolean): HResult; stdcall;
  end;
 
//=============================================================================
// Description:
//
//  The different message types that can be passed to the video presenter via
//  IMFVideoPresenter::ProcessMessage.
//
  TMFVP_MESSAGE_TYPE = (
    // Called by the video renderer when a flush request is received on the
    // reference video stream. In response, the presenter should clear its
    // queue of samples waiting to be presented.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_FLUSH = $00000000,
    // Indicates to the presenter that the current output media type on the
    // mixer has changed. In response, the presenter may now wish to renegotiate
    // the media type of the video mixer.
    // Return Values:
    //  S_OK - successful completion
    //  MF_E_INVALIDMEDIATYPE - The presenter and mixer could not agree on
    //      a media type.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_INVALIDATEMEDIATYPE  = $00000001,
    // Indicates that a sample has been delivered to the video mixer object,
    // and there may now be a sample now available on the mixer's output. In
    // response, the presenter may want to draw frames out of the mixer's
    // output.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_PROCESSINPUTNOTIFY  = $00000002,
    // Called when streaming is about to begin. In
    // response, the presenter should allocate any resources necessary to begin
    // streaming.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_BEGINSTREAMING = $00000003,
    // Called when streaming has completed. In
    // response, the presenter should release any resources that were
    // previously allocated for streaming.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_ENDSTREAMING = $00000004,
    // Indicates that the end of this segment has been reached.
    // When the last frame has been rendered, EC_COMPLETE should be sent
    // on the IMediaEvent interface retrieved from the renderer
    // during IMFTopologyServiceLookupClient::InitServicePointers method.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_ENDOFSTREAM  = $00000005,
    // The presenter should step the number frames indicated by the lower DWORD
    // of ulParam.
    // The first n-1 frames should be skipped and only the nth frame should be
    // shown. Note that this message should only be received while in the pause
    // state or while in the started state when the rate is 0.
    // Otherwise, MF_E_INVALIDREQUEST should be returned.
    // When the nth frame has been shown EC_STEP_COMPLETE
    // should be sent on the IMediaEvent interface.
    // Additionally, if stepping is being done while the rate is set to 0
    // (a.k.a. "scrubbing"), the frame should be displayed immediately when
    // it is received, and EC_SCRUB_TIME should be sent right away after
    // sending EC_STEP_COMPLETE.
    MFVP_MESSAGE_STEP = $00000006,
    // The currently queued step operation should be cancelled. The presenter
    // should remain in the pause state following the cancellation.
    // ulParam is unused and should be set to zero.
    MFVP_MESSAGE_CANCELSTEP = $00000007);
 
//  IMFVideoPresenter = interface(IMFClockStateSink)
//    ['{29AFF080-182A-4a5d-AF3B-448F3A6346CB}']
//    function ProcessMessage(eMessage: TMFVP_MESSAGE_TYPE; ulParam: ULONG_PTR);
//    function GetCurrentMediaType(out ppMediaType: IMFVideoMediaType);
//  end;
 
  IMFDesiredSample = interface(IUnknown)
    [SID_IMFDesiredSample]
    function GetDesiredSampleTimeAndDuration(out phnsSampleTime: Int64; out phnsSampleDuration: Int64): HResult; stdcall;
    function SetDesiredSampleTimeAndDuration(hnsSampleTime: Int64; hnsSampleDuration: Int64): HResult; stdcall;
    procedure Clear; stdcall;
  end;
 
//  IMFTrackedSample = interface(IUnknown)
//    [SID_IMFTrackedSample]
//    function SetAllocator(pSampleAllocator: IMFAsyncCallback; {unique} pUnkState: IUnknown);
//  end;
 
  IMFVideoMixerControl = interface(IUnknown)
    [SID_IMFVideoMixerControl]
    function SetStreamZOrder(dwStreamID: DWORD; dwZ: DWORD): HResult; stdcall;
    function GetStreamZOrder(dwStreamID: DWORD; out pdwZ: DWORD): HResult; stdcall;
    function SetStreamOutputRect(dwStreamID: DWORD; pnrcOutput: PMFVideoNormalizedRect): HResult; stdcall;
    function GetStreamOutputRect(dwStreamID: DWORD; out pnrcOutput: TMFVideoNormalizedRect): HResult; stdcall;
  end;
 
//  IMFVideoRenderer = interface(IUnknown)
//    [SID_IMFVideoRenderer]
//    function InitializeRenderer({unique, nil} pVideoMixer: IMFTransform;
//      {unique, nil} pVideoPresenter: IMFVideoPresenter);
//  end;
 
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
 
type
  MF_SERVICE_LOOKUP_TYPE = (
    MF_SERVICE_LOOKUP_UPSTREAM,
    MF_SERVICE_LOOKUP_UPSTREAM_DIRECT,
    MF_SERVICE_LOOKUP_DOWNSTREAM,
    MF_SERVICE_LOOKUP_DOWNSTREAM_DIRECT,
    MF_SERVICE_LOOKUP_ALL, // lookup service on any components of the graph
    MF_SERVICE_LOOKUP_GLOBAL); // lookup global objects
 
  IMFTopologyServiceLookup = interface(IUnknown)
    [SID_IMFTopologyServiceLookup]
    function LookupService(_Type: MF_SERVICE_LOOKUP_TYPE; dwIndex: DWORD;
      const guidService: TIID; {in} const riid: TIID; out ppvObjects; var pnObjects: DWORD): HResult; stdcall;
  end;
 
  IMFTopologyServiceLookupClient = interface(IUnknown)
    [SID_IMFTopologyServiceLookupClient]
    function InitServicePointers(pLookup: IMFTopologyServiceLookup): HResult; stdcall;
  end;
 
  IEVRTrustedVideoPlugin = interface(IUnknown)
    [SID_IEVRTrustedVideoPlugin]
    function IsInTrustedVideoMode(out pYes: BOOL): HResult; stdcall;
    function CanConstrict (out pYes: BOOL): HResult; stdcall;
    function SetConstriction(dwKPix: DWORD): HResult; stdcall;
    function DisableImageExport(bDisable: BOOL): HResult; stdcall;
  end;
 
type
  IEVRFilterConfig = interface(IUnknown)
    [SID_IEVRFilterConfig]
    function SetNumberOfStreams(dwMaxStreams: DWORD): HResult; stdcall;
    function GetNumberOfStreams(out pdwMaxStreams: DWORD): HResult; stdcall;
  end;
 
  IMFGetService = interface(IUnknown)
    [SID_IMFGetService]
    function GetService(const guidService: TGUID; const IID: TIID; out ppvObject): HResult; stdcall;
  end;
 
type
  D3DPOOL = DWord;
 
  TDXVA2_Fixed32 = record
    {$IFNDEF norecprocs}
    procedure Dummy;
    class operator Implicit(Fixed32: TDXVA2_Fixed32): Double;
    class operator Implicit(ADouble: Double): TDXVA2_Fixed32;
    {$ENDIF}
    case Integer of
      0: (Fraction: Word; //USHORT;  (Unsigned SmallInt = Word)
          Value: SHORT);
      1: (ll: LongInt)
  end;
 
  TDXVA2_VideoProcessorCaps = record
    DeviceCaps: UINT;               // see DXVA2_VPDev_Xxxx
    InputPool: D3DPOOL;
    NumForwardRefSamples: UINT;
    NumBackwardRefSamples: UINT;
    Reserved: UINT;
    DeinterlaceTechnology: UINT;    // see DXVA2_DeinterlaceTech_Xxxx
    ProcAmpControlCaps: UINT;       // see DXVA2_ProcAmp_Xxxx
    VideoProcessorOperations: UINT; // see DXVA2_VideoProcess_Xxxx
    NoiseFilterTechnology: UINT;    // see DXVA2_NoiseFilterTech_Xxxx
    DetailFilterTechnology: UINT;   // see DXVA2_DetailFilterTech_Xxxx
  end;
 
  TDXVA2_ValueRange = record
    MinValue:     TDXVA2_Fixed32;
    MaxValue:     TDXVA2_Fixed32;
    DefaultValue: TDXVA2_Fixed32;
    StepSize:     TDXVA2_Fixed32;
  end;
 
  TDXVA2_ProcAmpValues = record
    Brightness: TDXVA2_Fixed32;
    Contrast:   TDXVA2_Fixed32;
    Hue:        TDXVA2_Fixed32;
    Saturation: TDXVA2_Fixed32;
  end;
 
const
    DXVA2_ProcAmp_None                              = $0000;
    DXVA2_ProcAmp_Brightness                        = $0001;
    DXVA2_ProcAmp_Contrast                          = $0002;
    DXVA2_ProcAmp_Hue                               = $0004;
    DXVA2_ProcAmp_Saturation                        = $0008;
    DXVA2_ProcAmp_Mask                              = $000F;
 
  DXVA2_VideoProcProgressiveDevice: TGUID = '{5a54a0c9-c7ec-4bd9-8ede-f3c75dc4393b}';
  DXVA2_VideoProcBobDevice        : TGUID = '{335aa36e-7884-43a4-9c91-7f87faf3e37e}';
  DXVA2_VideoProcSoftwareDevice   : TGUID = '{4553d47f-ee7e-4e3f-9475-dbf1376c4810}';
 
 
type
  IMFVideoProcessor = interface(IUnknown)
    [SID_IMFVideoProcessor]
    function GetAvailableVideoProcessorModes(var lpdwNumProcessingModes: UINT;
            { [size_is][size_is][out] } out ppVideoProcessingModes {Pointer to Array of GUID}): HResult; stdcall;
    function GetVideoProcessorCaps(lpVideoProcessorMode: PGUID;
      { [out] } out lpVideoProcessorCaps: TDXVA2_VideoProcessorCaps): HResult; stdcall;
    function GetVideoProcessorMode(out lpMode: TGUID): HResult; stdcall;
    function SetVideoProcessorMode(lpMode: PGUID): HResult; stdcall;
    function GetProcAmpRange(dwProperty: DWORD; out pPropRange: TDXVA2_ValueRange): HResult; stdcall;
    function GetProcAmpValues(dwFlags: DWORD; out Values: TDXVA2_ProcAmpValues): HResult; stdcall;
    function SetProcAmpValues(dwFlags: DWORD; {in} const pValues: TDXVA2_ProcAmpValues): HResult; stdcall;
    function GetFilteringRange(dwProperty: DWORD; out pPropRange: TDXVA2_ValueRange): HResult; stdcall;
    function GetFilteringValue(dwProperty: DWORD; out pValue: TDXVA2_Fixed32): HResult; stdcall;
    function SetFilteringValue(dwProperty: DWORD; const pValue: TDXVA2_Fixed32): HResult; stdcall;
    function GetBackgroundColor(out lpClrBkg: COLORREF): HResult; stdcall;
    function SetBackgroundColor(ClrBkg: COLORREF): HResult; stdcall;
  end;
 
//  TMFVideoAlphaBitmapFlags = (
const
    MFVideoAlphaBitmap_EntireDDS	= $1;
    MFVideoAlphaBitmap_SrcColorKey	= $2;
    MFVideoAlphaBitmap_SrcRect	= $4;
    MFVideoAlphaBitmap_DestRect	= $8;
    MFVideoAlphaBitmap_FilterMode	= $10;
    MFVideoAlphaBitmap_Alpha	= $20;
    MFVideoAlphaBitmap_BitMask	= $3f;
 
type
  TMFVideoAlphaBitmapParams = record
    dwFlags: DWORD;
    clrSrcKey: COLORREF;
    rcSrc: TRECT;
    nrcDest: TMFVideoNormalizedRect;
    fAlpha: Single;
    dwFilterMode: DWORD;
  end;
 
  IDirect3DSurface9 = Pointer; // TODO (for now use a pointer to avoid dependencies to DirectX 9 units)
 
  TMFVideoAlphaBitmap = record
    GetBitmapFromDC: Boolean;
    case Boolean of
      True: (hdc: HDC; params: TMFVideoAlphaBitmapParams);
      False: (pDDS: IDirect3DSurface9; params2: TMFVideoAlphaBitmapParams;);
  end;
 
  IMFVideoMixerBitmap = interface(IUnknown)
    [SID_IMFVideoMixerBitmap]
    function SetAlphaBitmap(const pBmpParms: TMFVideoAlphaBitmap): HResult; stdcall;
    function ClearAlphaBitmap: HResult; stdcall;
    function UpdateAlphaBitmapParameters(const pBmpParms: TMFVideoAlphaBitmapParams): HResult; stdcall;
    function GetAlphaBitmapParameters(out pBmpParms: TMFVideoAlphaBitmapParams): HResult; stdcall;
  end;
 
function MFVideoNormalizedRect(const ALeft, ATop, ARight, ABottom: Single): TMFVideoNormalizedRect;
 
implementation
 
function MFVideoNormalizedRect(const ALeft, ATop, ARight, ABottom: Single): TMFVideoNormalizedRect;
begin
  Result.left := ALeft;
  Result.top := ATop;
  Result.right := ARight;
  Result.bottom := ABottom;
end;
 
{ TMFVideoNormalizedRect }
 
{$IFNDEF norecprocs}
procedure TMFVideoNormalizedRect.Init(ALeft, ATop, ARight, ABottom: Single);
begin
  left := ALeft;
  top := ATop;
  right := ARight;
  bottom := ABottom;
end;
{$ENDIF}
 
{ TDXVA2_Fixed32 }
 
{$IFNDEF norecprocs}
procedure TDXVA2_Fixed32.Dummy;
begin
  // this is just to make delphi class completion happy
end;
 
class operator TDXVA2_Fixed32.Implicit(Fixed32: TDXVA2_Fixed32): Double;
begin
  with Fixed32 do
    Result := Value + Fraction / $10000;
end;
 
class operator TDXVA2_Fixed32.Implicit(ADouble: Double): TDXVA2_Fixed32;
begin
  Result.Fraction := Trunc(Frac(ADouble) * $10000);
  Result.Value := Trunc(ADouble);
end;
{$ENDIF}
 
end.

S'il existe un autre moyen d'afficher, je veux bien.
La seule chose dt j'ai besoin c'est de pouvoir me déplacer dans la vidéo à la frame près.
Il me semble que j'avais utilisé Tmediaplayer, mais j'avais abandonné, car le fichier vidéo à ouvrir provient d'avisynth, et à l'affichage il y a vait plein d'artefact.
Alors qu'avec l'autre méthode cela marche à tous les coups.

Merci.

**davidmarli** · 17/11/2013, 12h31

Problème résolu : En fait je vient de me rendre compte, qu ma vidéo s'affiche dans un panel, et je ne sais pour quelle raison, un autre panel recouvrait celui où s'affiche la vidéo !!!

Bref, en effaçant ce panel, ma vidéo est bien lues et s'affiche correctement...

Voilà.

Merci pour votre aide.

PS : j'ai voulu installer le compsant activex, mais je n'y arrive pas, quand j'essaye, delphi me dit que je n'ai pas les droits pour écrire dans le répertorie embarcadero !!!

Pb depuis passage à win 8.1

Delphi

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