Re: How to add text data in avi file? - C / C++ / MFC Discussion Boards

Hemant kulkarni13-Oct-06 0:43

13-Oct-06 0:43

Hi,

I want to add some text data into avi file. How can I achieve this? I am not getting how to set format for text file using "AVIStreamSetFormat" function. How can I add some text data into avi file?

Regards,
Hemant.

Re: How to add text data in avi file?

Hamid_RT13-Oct-06 0:49

Hamid_RT

13-Oct-06 0:49

Do you want to make avi or modify avi?

WhiteSky

Re: How to add text data in avi file?

Hemant kulkarni13-Oct-06 0:52

Hemant kulkarni

13-Oct-06 0:52

Hi,

I want to make AVi from some images which I achived. Now I wants to add some text data into avi file How I can do this?

Regards,
Hemant

Re: How to add text data in avi file?

Hamid_RT13-Oct-06 1:15

Hamid_RT

13-Oct-06 1:15

I think best example is on MSDN it makes a avi file with numbers 0..9 it doesnt any bmp file although you can insert your bmp files to it but I think (not sure)you can find it on VC6 exmples

WhiteSky

Re: How to add text data in avi file?

Christian Graus13-Oct-06 1:27

Christian Graus

13-Oct-06 1:27

You need to put the text onto your images, and THEN make them into an AVI.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

Re: How to add text data in avi file?

Galatei13-Oct-06 0:49

Galatei

13-Oct-06 0:49

Hi,

I think it may be a bit more complicated than it seems to be.
In the simplest form I would do something like this:
- decompress avi to a raw frame by frame format,
- draw text on every such frame,
- compress back to original format.

I doubt there a specific function for this task.
Regards

Re: How to add text data in avi file?

Hemant kulkarni13-Oct-06 0:53

Hemant kulkarni

13-Oct-06 0:53

Yes
I neew to draw some text on images. For that reason I ned to save some text data in avi file. How can i do this?

Re: How to add text data in avi file?

Cedric Moonen13-Oct-06 0:59

Cedric Moonen

13-Oct-06 0:59

What you call 'text' is in fact not text: it's just an image with certain pixels coloured so that you (as a user) can interpret it as text.
It is way more complicated that you think. You cannot just open the file and write your text somewhere in it so that magically your text will appear in the images.

If you want to do it by code, I think you can forget about it (or spend really a lot a lot of time, I even don't know if this is possible). The best solution is what you have been told: do it with a tool that lets you open the images one by one and draw the text yourself manually with the tool on the image. Then save everything after it.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: How to add text data in avi file?

Galatei13-Oct-06 2:47

Galatei

13-Oct-06 2:47

In every "advanced" movie authoring software, such operation can be described exactly as:
-decompress to frames
-draw text on every frame (for specified time in stream of course)
-apply filters
-compress

Regards

Re: How to add text data in avi file?

Hemant kulkarni15-Oct-06 21:52

Hemant kulkarni

15-Oct-06 21:52

Hi,

Thanks to all who replied /answered my queries. I solved my problem with some R and D. Actually my intention was to save some text data into AVI file.(text data means some xml file specific to my application). As we know we can save bitmap audio and text data in AVI file I was used same method as image for text with only format change like FOURCC code 'txts' instead of 'vids' etc.

If I need any more help I will again post a new question as always

Thanks again for all replies

Regards,
Hemant.

Re: How to add text data in avi file?

Adi Shavit21-Sep-09 21:40

Adi Shavit

21-Sep-09 21:40

Hi Hemant,

Could you give some more info about how you opened and wrote to the 'txts' stream? A code snippet would be great!

Thanks,
Adi

leake of memory

zizzzz13-Oct-06 0:40

zizzzz

13-Oct-06 0:40

I have a problem with memory when I put this code to insert a propertySheet into my CFormView
CWnd* pwndPropSheetHolder = GetDlgItem(IDC_PLACEHOLDER);
m_myPlanningSheet = new CPlanningSheet(_T("sheet"),pwndPropSheetHolder,0);

if (!m_myPlanningSheet->Create(pwndPropSheetHolder,
WS_CHILD | WS_VISIBLE, 0))
{
delete m_myPlanningSheet;
m_myPlanningSheet = NULL;
return;
}

// fit the property sheet into the place holder window, and show it
CRect rectPropSheet;
pwndPropSheetHolder->GetWindowRect(rectPropSheet);
m_myPlanningSheet->SetWindowPos(NULL, 0, 0,
rectPropSheet.Width(), rectPropSheet.Height(),
SWP_NOZORDER | SWP_NOACTIVATE);

I don't know what's the problem i put new then selete to allocate and to free Confused | :confused:

zizzzzzzzz

Re: leake of memory

Galatei13-Oct-06 0:43

Galatei

13-Oct-06 0:43

The problem is that you call delete only when Create fails.
You should call delete once you are done with PropertySheet.

Regards

Re: leake of memory

zizzzz13-Oct-06 1:02

zizzzz

13-Oct-06 1:02

special thanks
thaaaaaaaannnnnkkkk you very veryyyyyyyyyyyyyyyyyy much Laugh | :laugh:

Re: leake of memory

zizzzz13-Oct-06 1:21

zizzzz

13-Oct-06 1:21

where should I put the second delete because i need it dispalyed until programm is close
I tried to put it in MainFrm in WM_ONCLOSE but it doesn't work

Re: leake of memory

Galatei13-Oct-06 1:38

Galatei

13-Oct-06 1:38

Try putting it in your CFormView's destructor, but It necessary to destroy its window first.

Regards

Re: leake of memory

zizzzz14-Oct-06 7:37

zizzzz

14-Oct-06 7:37

ok it's running

thank's very much Smile | :)

auto run problem

ooola13-Oct-06 0:04

ooola

13-Oct-06 0:04

Hi,
How can v use installshield to run our software burnt on cd. The s/w has been developed in VC++ 6.0, Plz tell me the whole process from installing install shield and running the exe saved in cd

Re: auto run problem

Galatei13-Oct-06 0:51

Galatei

13-Oct-06 0:51

You should be able to find information about installation process in IS documentation.
As for autorun:

For example:
in the root of your cd, create autorun.inf containing following section:

[AutoRun]
open=application.exe

That's all folks.
Regards

A simple question about recording

minihotto12-Oct-06 23:23

minihotto

12-Oct-06 23:23

I follow the following steps to write a simple record program
waveInOpen
waveInPrepareHeader
waveInAddBuffer
waveInStart
waveInGetPosition
waveInReset
waveInUnprepareHeader
waveInClose

The program runs with no errors.

But I create a file to record the voice.
HANDLE FileHandle = CreateFile( L"myTest.wav", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
The wav file was created.
But I play rhe wav file by windows media player.
It says there is an error.

Is there any problem with my code?
My part code is below.

<br />
HANDLE FileHandle = CreateFile( L"myTest.wav", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); <br />
WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); <br />
SetEndOfFile(FileHandle); <br />
CloseHandle( FileHandle );  <br />
FileHandle = INVALID_HANDLE_VALUE;<br />

Can somebody help me?
Thanks a lot.
minihotto

Re: A simple question about recording

Cedric Moonen12-Oct-06 23:34

Cedric Moonen

12-Oct-06 23:34

minihotto wrote:
WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL);

You know that your file will only be 4 bytes ? I hardly believe this a valid file format for a wav file. Check the documentation of the WriteFile[^] function.

Also, you will need to follow the format reaquired for a wav file (I don't know it but if you search on google, you could find it).

minihotto wrote:
SetEndOfFile(FileHandle);

What are you trying to do here ?

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: A simple question about recording

minihotto13-Oct-06 6:10

minihotto

13-Oct-06 6:10

I see. thnaks.
this is the example I find from internet

<br />
HANDLE FileHandle = CreateFile( "Test.wav", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); <br />
dwNumber = FCC("RIFF"); <br />
WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); <br />

what is FCC?
I cant find it in the msdn.
can somebody help me ?
thanks a lot.
minihotto

Re: A simple question about recording

Cedric Moonen13-Oct-06 6:27

Cedric Moonen

13-Oct-06 6:27

It's probably a function that they developed themselves. But anyway, you first need to understand the file structure of the wav file in order to have something that can be played.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: A simple question about recording

Galatei13-Oct-06 1:02

Galatei

13-Oct-06 1:02

minihotto wrote:
HANDLE FileHandle = CreateFile( L"myTest.wav", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL);
SetEndOfFile(FileHandle);
CloseHandle( FileHandle );
FileHandle = INVALID_HANDLE_VALUE;

This file doesn't even have a header, and your code wrote only 4 bytes of data to it, so how would you want it to be played?

Regards

Re: A simple question about recording

Hamid_RT13-Oct-06 1:04

Hamid_RT

13-Oct-06 1:04

In addition use of CREATE_ALWAYSoverwrite your file if its exist

WhiteSky

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