cant write video files in 640*480, 720*576, etc...

See more:

VisualC++

i was using profile (.prx) to write video bufer to wmv video format file by using the LoadProfileByData... work's fine for 320*240 biwidth and biheight repectively.

if i changed the values to other than320*240 for ex 640*480 it crates wmv file of 2.52kb constantly but the file is empty, no video buffer inside, the property of this wmv file shows 640*480 resolution.

i had tried by changing the following values in the profile .prx file

biwidth, biheight to 640*480,
rcsource & rctargetto 640*480
bi compression from wmv1 to wmv2 or wmv3 and simeltaeously wmmediatype subtype & streamconfig majortype

also tried by changin profile version too..
also tried changing the vc++ code SetSystemProfileVersion(WMT_VER_8_0);to
WMT_VER_9_0


but everything results in failure the same 2.52kb empty wmv file with 640*480 resolution.

but by using LoadSystemProfile , i can change the resolution to anything 176*144,...640*480 to 1024*768 by changing the biwidth and biheight in WMSysPr9.prx in windows32 folder.

anybody please help me


my code vc++ is follows

STDMETHODIMP Cs_cl_cam::videorecord_profile(BSTR path, LONG bitrate)
{

	
	WMT_VERSION WMVersion;
	HRESULT hr;
	IWMProfileManager *ProfManager=NULL;
	IWMProfileManager2 *ProfManager2=NULL;

	int buff_Count = 0;
	
		hr = WMCreateWriter(NULL,&Writer);
		IWMProfileManagerLanguage *ProfManagerLang;
		hr = WMCreateProfileManager(&ProfManager);
		ProfManager2 = (IWMProfileManager2*)ProfManager;
		ProfManagerLang = (IWMProfileManagerLanguage*)ProfManager;
		hr = ProfManager2->GetSystemProfileVersion(&WMVersion);	
		hr = ProfManager2->SetSystemProfileVersion(WMT_VER_8_0);
	
		string bs,path1,path2;	
		switch (bitrate)
		{
			case 100:
				bs="100";
				break;
			case 200:
				bs="200";
				break;
			case 300:
				bs="300";
				break;
			case 400:
				bs="400";
				break;
			default:
				bs="100";
				break;
		}
		path1="c:\\Profiles\\";
		path2=path1+bs+"kbps_v.prx";
		FILE *fp = fopen(path2.c_str(),"r");
		fseek(fp,0,SEEK_END);
		long nBytes = ftell(fp);
		rewind(fp);
		char* ProfString = (char*)malloc(sizeof(char)*nBytes);
		fread(ProfString,sizeof(char),nBytes,fp);	
		WCHAR* ProfLoadStr = (WCHAR*)ProfString;
		fclose(fp);									
		
		hr = ProfManager2->LoadProfileByData(ProfLoadStr,&Profile);
		hr = Writer->SetProfile(Profile);
		hr = Writer->SetOutputFilename(path);
		hr = Writer->BeginWriting();
	
		buff_Count = 0;
		SampleTime=0;
		CollectSamples = TRUE;

	return S_OK;
}

and my custamized profile am using is goes here

       <profile version="589824"
            storageformat="1"
            name="100kbps_v"
            description="">
                  <streamconfig majortype="{73646976-0000-0010-8000-00AA00389B71}"
                  streamnumber="1"
                  streamname="Video Stream"
                  inputname="Video409"
                  bitrate="100000"
                  bufferwindow="-1"
                  reliabletransport="0"
                  decodercomplexity="AU"
                  rfc1766langid="en-us"
>
                    <videomediaprops maxkeyframespacing="80000000"
                                    quality="80"/>
            <wmmediatype subtype="{31564D57-0000-0010-8000-00AA00389B71}"
                  bfixedsizesamples="0"
                  btemporalcompression="1"
                  lsamplesize="0">
      <videoinfoheader dwbitrate="100000"
                       dwbiterrorrate="0"
                       avgtimeperframe="1000000">
       <rcsource left="0"
                 top="0"
                 right="320"
                 bottom="240"/>
       <rctarget left="0"
                 top="0"
                 right="320"
                 bottom="240"/>
           <bitmapinfoheader biwidth="320"
                             biheight="240"
                             biplanes="1"
                             bibitcount="24"
                             bicompression="WMV1"
                             bisizeimage="0"
                             bixpelspermeter="0"
                             biypelspermeter="0"
                             biclrused="0"
                             biclrimportant="0"/>
      </videoinfoheader>
           </wmmediatype>
           </streamconfig>
                  <streamconfig majortype="{73636D64-0000-0010-8000-00AA00389B71}"
                  streamnumber="2"
                  streamname="Script Stream"
                  inputname="Script409"
                  bitrate="4000"
                  bufferwindow="-1"
                  reliabletransport="0"
                  decodercomplexity=""
                  rfc1766langid="en-us"
>
            <wmmediatype subtype="{00000000-0000-0000-0000-000000000000}"
                  bfixedsizesamples="0"
                  btemporalcompression="0"
                  lsamplesize="0">
      <WMSCRIPTFORMAT scripttype="{82F38A70-C29F-11D1-97AD-00A0C95EA850}"/>
           </wmmediatype>
           </streamconfig>
    <streamprioritization>
     <stream number="1" mandatory="0"/>
     <stream number="2" mandatory="0"/>
    </streamprioritization>
   </profile>

anybody please help me to set 640*480 resolution