Thread: Compression/Decompression Wave File and MP3

To run the exe file,
- Go to Start -> Run...
- At the prompt, type "command" which will open an MS DOS command prompt.
- type "cd" and type the directory the .exe is in
- At the prompt, type the exe's name, followed by the parameters you want. Parameters are usually separated by spaces.
- Press Enter. Yay.

Originally Posted by citizen

To run the exe file,
- Go to Start -> Run...
- At the prompt, type "command" which will open an MS DOS command prompt.
- type "cd" and type the directory the .exe is in
- At the prompt, type the exe's name, followed by the parameters you want. Parameters are usually separated by spaces.
- Press Enter. Yay.

Sorry, please forgive me, I still could not run the exe file, sorry, please forgive me.
I attached the file as I could not figure out where I did wrong.

Run "cmd" instead of "command" and then type:

Code:

cd "D:\Program Files\Speex"

This should get you to the correct directory where you can try out command lines.

Originally Posted by anonytmouse

Run "cmd" instead of "command" and then type:

Code:

cd "D:\Program Files\Speex"

This should get you to the correct directory where you can try out command lines.

Hi, Anonytmouse, thank you for your post. I am now manage to go in the correct directory and will try out the command lines. Thanks.

Hi, Anonytmouse, thank you so much, I have managed to use the command lines correctly. The program converted wave file to mp3 and vice versa successfully. Thanks so much.

How could I call the encode and decode function from my software itself?

May I ask? Is it possible to directly convert the wave to mp3 when the children click the button "save"? I worried that the small children dont know how to do this and that. We hope to make it as simple as possible. so that they are motivated to use this software.

Hi, Could you tell me how to integrate the speex into my software? How to call the speex from my software? Please help, please. I will try my best, please

You may want to try something like:

Code:

STARTUPINFO si = {0};
PROCESS_INFORMATION pi;
si.cb = sizeof(STARTUPINFO);

CreateProcess("speex",NULL,NULL,NULL,FALSE,0,NULL,NULL,&si,&pi);

I created a function for you that will call speexenc. It needs to be pasted in your source code above the save function.

Code:

/*
 * Helper function that finds the last instance of a character in a string.
 */
LPTSTR FindLastOf(LPCTSTR haystack, TCHAR needle)
{
	int i = lstrlen(haystack) - 1;

	while (i > 0)
	{
		if (haystack[i] == needle)
			return (LPTSTR) &haystack[i];

		i--;
	}

	return (LPTSTR) &haystack[0];
}


/*
 * Function to call speexenc.
 * First argument is the location of the .wav file. eg. "C:\\Temp\\wave file.wav"
 * Second argument is output directory. No trailing backslash should be used. eg. "A:"
 */
BOOL SpeexEncode(LPCTSTR szInputFile, LPCTSTR szOutputPath)
{
	STARTUPINFO         si = { sizeof(STARTUPINFO) };
	PROCESS_INFORMATION pi = { 0 };
	TCHAR               szCommandLine[MAX_PATH * 4 + 100];
	TCHAR               szPath[MAX_PATH];
	TCHAR               szOutputFile[MAX_PATH];
	TCHAR*              p;

	/* Get the path of the currently running executable
	 * which is where we expect speexenc to be located. */
	GetModuleFileName(NULL, szPath, MAX_PATH);
	p = FindLastOf(szPath, TEXT('\\')); p[0] = TEXT('\0');

	/* Get the input file name (excluding path) so that we can
	 * use the same file name for the output as the input. */
	p = FindLastOf(szInputFile, TEXT('\\'));
	lstrcpy(szOutputFile, p + 1);

	/* Change extension from .wav to .spx */
	p = FindLastOf(szOutputFile, TEXT('.'));
	lstrcpy(p, TEXT(".spx"));

	/* Create command line. */
	wsprintf(szCommandLine, TEXT("\"%s\\speexenc\" \"%s\" \"%s\\%s\""),
	         szPath, szInputFile, szOutputPath, szOutputFile);

	/* Execute command line. */
	CreateProcess(NULL, szCommandLine, NULL,
	              NULL, FALSE, 0, NULL, NULL, &si, &pi);

	/* Uncomment this line, if you want to pause here while the command completes. */
	// WaitForSingleObject(pi.hProcess, INFINITE);

	/* Uncomment this line for debugging, it will show the exact command line used. */
	// MessageBox(NULL, szCommandLine, NULL, 0);

	/* Cleanup. */
	CloseHandle(pi.hThread);
	CloseHandle(pi.hProcess);

	return TRUE;
}

You then need to call this function from your save function. It takes two arguments:
- The first is the location of the input wave file. That is, the path where the program has saved the wave recording.
- The second is the output directory. This may be a constant such as "A:" or a location provided by the user.

It is a impossible to provide the exact details of the call without seeing the save function code. If you can't work it out and it is possible, you could post the save function code, or attach the entire project.

Hi, Anonytmouse, thank you for your reply.

I have tried to put the codes at the location But I have two compile errors, I will search if I could fix it.

error C2601: 'FindLastOf' : local function definitions are illegal
error C2601: 'SpeexEncode' : local function definitions are illegal

Hi, I think I must put the codes after the button "save wave", isnt it?

Code:

void CSpeechDlg::OnSaveWave() 
{
	// TODO: Add your control notification handler code here
	
	savebuffer.save();
	
}

I have tried to put it in another location but the problem still there.
I have attached it.

Hi, I think I should attache the cpp file without adding the speex codes .

This is the original cpp file without adding any codes of speex purpsoe.