Re: file encoding problem - C / C++ / MFC Discussion Boards

bob1697219-Apr-07 3:36

19-Apr-07 3:36

For starters, you need something like this...

CSomeThread* pThread=(CsomeThread*)AfxBeginThread(RUNTIME_CLASS(CSomeThread));

it's much more advisable to start the thread suspended so you can prep the thread before it takes off to do work...

pThread=(CSomeThread*)AfxBeginThread(RUNTIME_CLASS(CSomeThread),
THREAD_PRIORITY_NORMAL,0,CREATE_SUSPENDED);

// Set up the thread members (if any)

// Then call resume thread to let it loose
pThread->ResumeThread();

However, you have a slight issue with what you are trying to do. As far as I know, most ActiveX controls (if not all) expect to have a parent container so they can feed off of it's ambient properties. There are many different types of COM objects and some aren't designed to need a container. If your COM object is indeed an ActiveX control, it will likely need some sort of container to appease it. If I need to get the functionality of an ActiveX control but don't necessarily want it to show itself, I create a dummy container for it...

// Need a parent container window to host the ActiveX control.
// Make it invisible and popup

CWnd wndInvisible;
CString sWndClass=AfxRegisterWndClass(0);
if (wnd.CreateEx(0,sWndClass,NULL,WS_POPUP,CRect(),NULL,0)) {
// Use the dummy CWnd as a container for the control
}

Re: CWinThread use

CDRAIN19-Apr-07 4:32

CDRAIN

19-Apr-07 4:32

Sorry, I want to say that I try your second solution...
I don't have access to the source code for the ActiveX, so I try the UI-Thread.

I try to explain my problem: on my thread I must fill a grid control (the ActiveX) and while this i need to refresh a progress bar.
This is the code I use:

Start the thread in which I'll fill the grid
C4ThrGrid * thread = (C4ThrGrid *)AfxBeginThread(RUNTIME_CLASS(C4ThrGrid));

Call the thread's function that fill the grid
thread->openGrid(&m_wndGrid,str,m_inUseSource);

Close the thread is it right
thread->PostThreadMessage(WM_QUIT, 0, 0);

Is it the right way to obtain what I need?

Why at runtime when I create the thread appear a message box that said "Insufficent Memory"

Help!!!!

Re: CWinThread use

bob1697219-Apr-07 6:33

bob16972

19-Apr-07 6:33

Wow, that was the exact same post, word for word, that you posted as a reply to Roger Stoltz yesterday Your response from yesterday[^]

I see Mr. Stoltz has summed it all up by basically saying you may want to further investigate COM and threads before you go any further with this.

I am starting to feel this way myself. Maybe give those topics some more research and it may seem easier the second time around.

I hope that helps.

How to Change top menu font ?

Atul2319-Apr-07 0:57

Atul23

19-Apr-07 0:57

Hi
All
i can change font of menu item but the font of Top menu items like File,Edit,Help etc is unchanged.So how can i do this.Is there any specific way to change font of top menu.

Thanks and Regards
WTF | :WTF:

Atool

Re: How to Change top menu font ?

Hamid_RT19-Apr-07 1:13

Hamid_RT

19-Apr-07 1:13

I think you aksed this question yesterday.

WhiteSky

file encoding problem

amitmistry_petlad 19-Apr-07 0:28

amitmistry_petlad

19-Apr-07 0:28

well I have build entire application but some where I got failure to encode the file.
can any body help me?
The application working nice for the console application.
but failure for window.

when I run the application first time it can made the converted file but no data.
and when I click button "Encode File" second time. no result i havent got the file.

welcome for look at code.

its simple one function.

"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India

Re: file encoding problem

Paresh Chitte19-Apr-07 2:14

Paresh Chitte

19-Apr-07 2:14

What kind of encoding are you using ? Could you please share your code ?

Regards,

Paresh.

Re: file encoding problem

amitmistry_petlad 19-Apr-07 2:45

amitmistry_petlad

19-Apr-07 2:45

Encoding from any format to wmv/wma by encoder sdk by c++

please check the link

http://www.codeproject.com/Purgatory/ConvertVideoFileFormats.asp[^]

this in c# while i am in vc++

pEncoder->PrepareToEncode-failed most time

HRESULT Encoder :: convertintowma_wmv(WCHAR *source,WCHAR * destionation,WCHAR * w_encoderprofile,BOOL b_MultiPass,UINT top ,UINT bottom ,UINT left,UINT right,HACCEL hAccelTable)
 {

	HRESULT hr;
    IWMEncoder* pEncoder;
    IWMEncSourceGroupCollection* pSrcGrpColl=NULL;
    IWMEncSourceGroup* pSrcGrp=NULL;
    IWMEncSource* pSrc=NULL;
    IWMEncSource* pSrcAud=NULL;
    IWMEncVideoSource* pSrcVid=NULL;
    IWMEncProfileCollection* pProColl=NULL;
    IWMEncProfile* pPro=NULL;
    IWMEncFile* pFile=NULL;
    IWMEncAttributes* pAttr=NULL;
    IWMEncDisplayInfo* pDispInfo=NULL;
    CComBSTR bstrName = NULL;
	CComVariant varIndex;
	CCallBack EventSink; 
	WMENC_ENCODER_STATE enumCurState;
    WMENC_ENCODER_STATE enumPrvState;
	short iAudCount, iVidCount;
    long lCount=0;
    int i=0;
	
//	enumCurState=0;
//	enumPrvState=0;
    
	// Initialize the COM library and retrieve a pointer to an IWMEncoder interface.
    hr = CoInitialize(NULL);
    if ( SUCCEEDED( hr ) )
    {
        hr = CoCreateInstance(CLSID_WMEncoder,
            NULL,
            CLSCTX_INPROC_SERVER,
            IID_IWMEncoder,
            (void**) &pEncoder);
    }else
	{
		MessageBox(0,L"FAIL CREATE instance",L"FAIL CREATE instance",0); 
	}

    // Retrieve the source group collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_SourceGroupCollection(&pSrcGrpColl);
		
    }else
	{
		MessageBox(0,L"pEncoder->get_SourceGroupCollection Fail",L"get_SourceGroupCollection",0); 
	}

    // Add a source group to the collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrpColl->Add(CComBSTR("SG_1"), &pSrcGrp);
    }
	else
	{
		MessageBox(0,L"pSrcGrpColl->Add",L"pSrcGrpColl->Add",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp->AddSource(WMENC_AUDIO, &pSrcAud);
    }else
	{
		MessageBox(0,L"pSrcGrp->AddSource",L"pSrcGrp->AddSource",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp->AddSource(WMENC_VIDEO, &pSrc);
    }else
	{
		MessageBox(0,L"pSrcGrp->AddSource(WMENC_VIDEO",L"pSrcGrp->AddSource(WMENC_VIDEO",0); 
	}

    // Retrieve an IWMEncVideoSource pointer.
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrc->QueryInterface(IID_IWMEncVideoSource, (void**)&pSrcVid);
    }else
	{
		MessageBox(0,L"pSrc->QueryInterface",L"pSrc->QueryInterface",0); 
	}

    // Add a video and audio source to the source group.
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcAud->SetInput(source);
    }else
	{
		MessageBox(0,L"pSrcAud->SetInput",L"pSrcAud->SetInput",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcVid->SetInput(source);
    }else
	{
		MessageBox(0,L"pSrcVid->SetInput(source);",L"pSrcVid->SetInput(source);",0); 
	}

    // Specify the cropping margins.
 //   /*if ( SUCCEEDED( hr ) )
 //   {
 //       hr = pSrcVid->put_CroppingBottomMargin(0);
 //   }else
	//{
	//	MessageBox(0,L"pSrcVid->put_CroppingBottomMargin",L"source group ",0); 
	//}

 //   if ( SUCCEEDED( hr ) )
 //   {
 //       hr = pSrcVid->put_CroppingTopMargin(0);
 //   }else
	//{
	//	MessageBox(0,L"source group",L"source group ",0); 
	//}


 //   if ( SUCCEEDED( hr ) )
 //   {
 //       hr = pSrcVid->put_CroppingLeftMargin(0);
 //   }else
	//{
	//	MessageBox(0,L"source group",L"source group ",0); 
	//}

 //   if ( SUCCEEDED( hr ) )
 //   {
 //       hr = pSrcVid->put_CroppingRightMargin(0);
 //   }else
	//{
	//	MessageBox(0,L"source group",L"source group ",0); 
	//}*/



    // Fill in the description object members.

    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_DisplayInfo(&pDispInfo);
    }else
	{
		MessageBox(0,L"pEncoder->get_DisplayInfo",L"pEncoder->get_DisplayInfo",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pDispInfo->put_Author(CComBSTR("Author Name"));
    }else
	{
		MessageBox(0,L"pDispInfo->put_Author",L"pDispInfo->put_Author",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pDispInfo->put_Copyright(CComBSTR("Copyright"));
    }else
	{
		MessageBox(0,L"pDispInfo->put_Copyright",L"pDispInfo->put_Copyright",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pDispInfo->put_Description(CComBSTR("A description"));
    }else
	{
		MessageBox(0,L"pDispInfo->put_Description",L"pDispInfo->put_Description",0); 
	}


    if ( SUCCEEDED( hr ) )
    {
        hr = pDispInfo->put_Rating(CComBSTR("Rating"));
    }else
	{
		MessageBox(0,L"pDispInfo->put_Rating",L"pDispInfo->put_Rating",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pDispInfo->put_Title(CComBSTR("The Title"));
    }else
	{
		MessageBox(0,L"pDispInfo->put_Title",L"pDispInfo->put_Title",0); 
	}



    // Add an attribute to the collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_Attributes(&pAttr);
    }else
	{
		MessageBox(0,L"source group",L"source group ",0); 
	}


    if ( SUCCEEDED( hr ) )
    {
        hr =  pAttr->Add(CComBSTR("URL"), CComVariant("IP Address"));
    }else
	{
		MessageBox(0,L"pAttr->Add",L"pAttr->Add",0); 
	}


    // Specify a file object in which to save encoded content.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_File(&pFile);
    }else
	{
		MessageBox(0,L"pEncoder->get_File",L"pEncoder->get_File",0); 
	}

    if ( SUCCEEDED( hr ) )
    {
        hr = pFile->put_LocalFileName(destionation);
    }else
	{
		MessageBox(0,L"pFile->put_LocalFileName",L"pFile->put_LocalFileName",0); 
	}



    // Choose a profile from the collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_ProfileCollection(&pProColl);
    }else
	{
		MessageBox(0,L"pEncoder->get_ProfileCollection",L"pEncoder->get_ProfileCollection",0); 
	}


    if ( SUCCEEDED( hr ) ) 
    {
        hr = pProColl->get_Count(&lCount);
    }else
	{
		MessageBox(0,L"pProColl->get_Count",L"pProColl->get_Count",0); 
	}


    for (i=0; i<lCount; i++)
    {
        if ( SUCCEEDED( hr ) )
        {
            hr = pProColl->Item(i, &pPro);
        }
        if ( SUCCEEDED( hr ) )
        {
            hr = pPro->get_Name(&bstrName);
        }
        if (_wcsicmp(bstrName,w_encoderprofile/*CComBSTR("Windows Media Video 8 for Local Area Network (384 Kbps)")*/)==0)
        {
            // Set the profile in the source group.			
            if ( SUCCEEDED( hr ) )
            {
                hr = pSrcGrp->put_Profile(CComVariant(pPro));
            }else
			{
				MessageBox(0,L"pSrcGrp->put_Profile(CComVariant(pPro)",L"source group ",0); 
			}
            break;
        }
    }


	if ( SUCCEEDED( hr ) )
	{
		hr = pEncoder->PrepareToEncode(VARIANT_FALSE);
	}else
	{
		MessageBox(0,L"pEncoder->PrepareToEncode",L"pEncoder->PrepareToEncode",0); 
	}

    // Start the encoding process.
    <code>if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->PrepareToEncode(VARIANT_TRUE);
    }else
	{
		MessageBox(0,L"PrepareToEncode fail",L"PrepareToEncode fail",0); 
	}</code>    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->Start();
        
		// Keep the console window open.
        // printf("When encoding stops, press a key to close the console window.");		
        // Stop the encoding process.

        if ( SUCCEEDED( hr ) )
        {
            // Wait for a key press.
            
			/*while(!kbhit())
               _asm nop;
			*/
			
			//MSG stMsg ={0} ;	
			//while (!GetMessage(&msg, NULL, 0, 0))
			//{
			//	if (!TranslateAccelerator(
			//		msg.hwnd,hAccelTable, &msg))
			//	{
			//		//Put your PreTranslateMessage stuff here
			//		TranslateMessage(&msg);
			//		DispatchMessage(&msg);
			//	}
			//}	

			
	// Wait until the encoding process
    // stops before exiting the application.

		bool glbboolStartNext=false;
		bool b_forfirsttime=false;
		MSG msg;
		while(!glbboolStartNext)
		{
			// In order for the events to be triggered correctly,
        // the windows message queue needs to be processed.

        while(PeekMessage(&msg,NULL,NULL,NULL,PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }

		if(b_forfirsttime)
		{
        enumPrvState = enumCurState;		
		}
		b_forfirsttime=true;
        enumCurState = EventSink.State();
        if( EventSink.SrcState() == WMENC_SOURCE_STOP )
            enumCurState = WMENC_ENCODER_STOPPED;

       // if( enumCurState != enumPrvState )
        {
            switch ( enumCurState )
            {
            case WMENC_ENCODER_STARTING:
                // TODO: Handle encoder starting state.
                break;

            case WMENC_ENCODER_RUNNING:
                // TODO: Handle encoder running state.
                break;

            case WMENC_ENCODER_PAUSING:
                // TODO: Handle encoder pausing state.
                break;

            case WMENC_ENCODER_PAUSED:
                // TODO: Handle encoder paused state.
                break;

            case WMENC_ENCODER_STOPPING:
                // TODO: Handle encoder stopping state.
                break;

            case WMENC_ENCODER_STOPPED:
                // TODO: Handle encoder stopped state.
				glbboolStartNext=true;
                goto EXIT;

            case WMENC_ENCODER_END_PREPROCESS:
                // TODO: Handle encoder end preprocess state.
                break;
            }
        }
    }

	
	EXIT:     
	  hr = pEncoder->Stop();	
	  hr = EventSink.Shutdown( pEncoder );		
			
        }
    }	

	//hr= pSrcGrpColl->Remove(VARIANT_FALSE);
	varIndex.vt = VT_I2;

	if ( SUCCEEDED( hr ) )
	{
		hr = pSrcGrpColl->get_Count(&lCount);
	}

	for (i=0; i<lCount; i++)
	{
	varIndex.iVal = i;		
    hr = pSrcGrpColl->Remove(varIndex);
	}
	

	//if ( SUCCEEDED( hr ) )
	{
    hr = pSrcGrp->get_SourceCount(WMENC_AUDIO, &iAudCount);
	}

   //if ( SUCCEEDED( hr ) )
{
    hr = pSrcGrp->get_SourceCount(WMENC_VIDEO, &iVidCount);
}

// Remove the video stream.
// You must verify that the count is not zero before deleting
// the source stream.

//CComVariant varIndex;

varIndex.vt = VT_I2;
varIndex.iVal = 0;
if (iVidCount != 0)
{
    //if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp->RemoveSource(WMENC_VIDEO, varIndex);
    }
}


if(iAudCount!=0)
  {
        hr = pSrcGrp->RemoveSource(WMENC_AUDIO, varIndex);
   }

	//if ( SUCCEEDED( hr ) )
	{
		hr = pEncoder->PrepareToEncode(VARIANT_FALSE);
	}

    // Release pointers.
    if ( pSrcGrpColl )
    {
        pSrcGrpColl->Release();
        pSrcGrpColl = NULL;
    }
    if ( pSrcGrp )
    {
        pSrcGrp->Release();
        pSrcGrp = NULL;
    }
    if ( pProColl )
    {
        pProColl->Release();
        pProColl = NULL;
    }
    if ( pPro )
    {
        pPro->Release();
        pPro = NULL;
    }
    if ( pFile )
    {
        pFile->Release();
        pFile = NULL;
    }
    if ( pSrcAud )
    {
        pSrcAud->Release();
        pSrcAud = NULL;
    }
    if ( pSrcVid )
    {
        pSrcVid->Release();
        pSrcVid = NULL;
    }
    if ( pSrc )
    {
        pSrc->Release();
        pSrc = NULL;
    }
    if ( pAttr )
    {
        pAttr->Release();
        pAttr = NULL;
    }
    if ( pDispInfo )
    {
        pDispInfo->Release();
        pDispInfo = NULL;
    }
    if ( pEncoder )
    {
        pEncoder->Release();
        pEncoder = NULL;
    }

	CoUninitialize();

	return(hr);
 }

"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India

Re: file encoding problem

Mark Salsbery19-Apr-07 9:33

Mark Salsbery

19-Apr-07 9:33

Have you stepped through the entire function in the debugger to make sure all preceding calls
were successful?

I can't tell entirely what's going on because of indentation, but is PrepareToEncode(VARIANT_FALSE)
being called before PrepareToEncode(VARIANT_TRUE)? If so, that seems odd to me.

When IWMEncoder::PrepareToEncode() fails, you can use the IErrorInfo interface to get a
description of the error:

#include <atlbase.h>
#include <atlcomcli.h>
...
hr = pEncoder->PrepareToEncode(VARIANT_TRUE);
 
if (FAILED(hr)
{
   CComPtr<IErrorInfo> pEO;
   if(S_OK == GetErrorInfo(NULL, &pEO))
   {
      CComBSTR bstrDesc;
      pEO->GetDescription(&bstrDesc); <code>// examine this BSTR</code>
   }
}

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: file encoding problem

amitmistry_petlad 22-Apr-07 20:31

amitmistry_petlad

22-Apr-07 20:31

Dear Mark.
Thank you very much for your help and I appreciate that, but what are the basic reasons for
unproperwork (pEncoder->PrepareToEncode(VARIANT_TRUE); ) of this function because you know some time its working properly even when the exe is running on my desktop after few seconds its working fine and after few second when i trying to encode its again gone fail.
Some time working nice and some time failure.
When I debug I got E_UNEXCEPTED at failture time . I have try to check this error with encoder sdk help but no fruitful result

"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India

Re: file encoding problem

Mark Salsbery23-Apr-07 5:12

Mark Salsbery

23-Apr-07 5:12

Most of the code you posted looks like it's taken directly from the "Encoding a File (C++)"
example in the WME SDK.

Calling PrepareToEncode(VARIANT_FALSE) ENDS an encoding session so it makes no sense that the
call is in your code (it's not in the example code).

Maybe compare your code to the sample code in the SDK and see what you are doing differently.

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: file encoding problem

amitmistry_petlad 23-Apr-07 17:30

amitmistry_petlad

23-Apr-07 17:30

Mark Salsbery wrote:
Calling PrepareToEncode(VARIANT_FALSE) ENDS an encoding session so it makes no sense that the
call is in your code (it's not in the example code).

I have wrote that thing becoz of suppose in any case if any old file havent stop then prior it can stop and reset for new one.

I have check it without writing this code but it was given the same error.

"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India

VC++/MFC

SumitMandal19-Apr-07 0:10

SumitMandal

19-Apr-07 0:10

How to create a form round in shape ?

Re: VC++/MFC

toxcct19-Apr-07 0:19

toxcct

19-Apr-07 0:19

How to get accurate answers to a question in a forum

hints : choose a correct title, search the web before posting, provide some solutions already tested...

Buttons section[^] (some are rounded, if you're interrested...)

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

VC++/MFC

SumitMandal19-Apr-07 0:08

SumitMandal

19-Apr-07 0:08

1) How do i change the color of the scrollbar D'Oh! | :doh:

Re: VC++/MFC

Hamid_RT19-Apr-07 1:14

Hamid_RT

19-Apr-07 1:14

See WM_CTLCOLORSCROLLBAR

WhiteSky

Re: VC++/MFC

Hamid_RT19-Apr-07 1:21

Hamid_RT

19-Apr-07 1:21

Maybe you want to see an example so see here[^]

WhiteSky

Scale control

kasturi_haribabu18-Apr-07 23:48

kasturi_haribabu

18-Apr-07 23:48

Can any one guide me in writing a scale control for editing applications?
I see there is a control in MS word application.
But I wonder what it is called?
i want to mimic the scale just like it does in MSWORD, but I have no clue how to go about it.

haribabu

Binary file format?

$uresh $hanmugam18-Apr-07 23:13

$uresh $hanmugam

18-Apr-07 23:13

Hi all,

Can i write the object of CRecordset class into binary file while that object contain record set,
and can i read those records from that binary file.If you know,let me know through your suggestions.

Thanks in advance

Regards
surezu

Re: Binary file format?

toxcct18-Apr-07 23:14

toxcct

18-Apr-07 23:14

yesn this is called serialization...

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: Binary file format?

$uresh $hanmugam19-Apr-07 1:45

$uresh $hanmugam

19-Apr-07 1:45

ok fine that is object serialization but tell me a specific code snippet that how to generate bin file and how to read it? please.....

INI file

josip cagalj18-Apr-07 23:03

josip cagalj

18-Apr-07 23:03

Hi, I have created a project in VC++6 with project name "Upravljanje snimkama" (two separated words) now i can't find my '.ini'-file ("Upravljanje snimkama.ini")! Is it because of the project name? What to do?
THX to all.

Re: INI file

toxcct18-Apr-07 23:13

toxcct

18-Apr-07 23:13