Ok guys i have a really hairy one for you , i'm working on directshow player
that i'm porting from Delphi to Lazarus x64 , in Lazarus in DirectShow when
i call the RenderFile Function out of DirectShow it gives me a nasty
exception error - Run Error 58632 ( is this a stub to say not supported yet
? )
Yet if i manually create the direct show filter and add them to the filter
graph and conect them together the graph works
The RenderFile Function in DirectShow is defined as
RenderFile(lpcwstrFile, lpcwstrPlayList: pWideChar): HResult; stdcall;
I'm using this function to change my ansistring into a pWideChar -
MultiByteToWideChar(CP_ACP, 0, PChar(FileName), -1, wstrFileName, MAX_PATH);
and i use RenderFile like this -> fGraphBuilder.RenderFile(wstrFileName,nil)
And the Interface for IGraphBuilder from MS is
IGraphBuilder = interface(IFilterGraph)
['{56A868A9-0AD4-11CE-B03A-0020AF0BA770}']
(*** IGraphBuilder methods ***)
function Connect(ppinOut, ppinIn: IPin): HResult; stdcall;
function Render(ppinOut: IPin): HResult; stdcall;
function RenderFile(lpcwstrFile, lpcwstrPlayList: pWideChar): HResult;
stdcall;
function AddSourceFilter(lpcwstrFileName, lpcwstrFilterName: LPCWSTR;
out ppFilter: IBaseFilter): HResult; stdcall;
function SetLogFile(hFile: THandle): HResult; stdcall;
function Abort: HResult; stdcall;
function ShouldOperationContinue: HResult; stdcall;
end;
and i filtergraph is
IFilterGraph = interface(IUnknown)
['{56A8689F-0AD4-11CE-B03A-0020AF0BA770}']
(*** IFilterGraph methods ***)
function AddFilter(pFilter: IBaseFilter; pName: PWideChar): HResult;
stdcall;
function RemoveFilter(pFilter: IBaseFilter): HResult; stdcall;
function EnumFilters(out ppEnum: IEnumFilters): HResult; stdcall;
function FindFilterByName(pName: PWideChar; out ppFilter: IBaseFilter):
HResult; stdcall;
function ConnectDirect(ppinOut, ppinIn: IPin; pmt: PAMMediaType):
HResult; stdcall;
function Reconnect(ppin: IPin): HResult; stdcall;
function Disconnect(ppin: IPin): HResult; stdcall;
function SetDefaultSyncSource: HResult; stdcall;
end;
Any help would be great , otherwise i'll have to do some messy hacking to
get this working
--
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