Speex dev - Aug 2004 - C++ wrapper for speex

hi sirs,

i am only recently studying speex and i'm looking for
a C++ wrapper for speex that has higer-level
implementations for the Encode and Decode functions,
to sort of base my initial understaning of how the
speex API work.

i have in fact created my own, following on the
instructions in the speex codec manual, but i havn't
really made any positive progress. (a lot of people
have already done it and i supposed i could do it
also, but i'm really confused now with all my failed
attempts.)

i'm particularly interested with real-time audio and i
have an event handler that captures audio samples like
the ff:

void CRecordSound::OnSoundData(WPARAM wParam, LPARAM
lParam)
{
        LPWAVEHDR lpHdr = (LPWAVEHDR) lParam;

        if(lpHdr)
        {					
                WAVEHDR* pSpeexHdr = new WAVEHDR;
                                        
                BYTE * pSound = new BYTE[lpHdr->dwBufferLength];			
                memcpy(pSound,lpHdr->lpData,lpHdr->dwBufferLength);
                                        
                pSpeexHdr->lpData = (char*)pSound; 
                pSpeexHdr->dwBufferLength = lpHdr->dwBufferLength; 
                pSpeexHdr->dwFlags = 0L; 
                pSpeexHdr->dwLoops = 0L;
                
                m_Player->PostThreadMessage(WM_PLAYSOUND_PLAYBLOCK,
GetCurrentThreadId(),(LPARAM) lpHdr);					
        }
}

this handler would simply capture the voice data and
immidiately play it as it is, and as far as that is
concern, it is working.

my speex case study is simple. i just want to encode
the raw data recieved by the handler and immidiately
decode it before posting WM_PLAYSOUND_PLAYBLOCK, and
to supply the decoded data as appropriate.

i would sincerely appreciate any offer of help,
advices, some real source code, or whatever graces
that would help me advance away from this ignorance. 

thank you to all of you and for the wonderful codec
that is speex.

ronald c. madrid

<p>        
                
__________________________________
Do you Yahoo!?
Friends.  Fun.  Try the all-new Yahoo! Messenger.
http://messenger.yahoo.com/ 
--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to
'speex-dev-request@xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is
needed.
Unsubscribe messages sent to the list will be ignored/filtered.

On Tue, May 25, 2004 at 05:20:07AM -0700, Ronald Madrid
wrote:
> i would sincerely appreciate any offer of help,
> advices, some real source code, or whatever graces
> that would help me advance away from this ignorance. 
Hi Ronald,

have a look at the speex wrapper in the fishsound sources:

  http://www.annodex.net/software/libfishsound/

it's C, not C++, but it's really just one class and should be pretty
easy to read :)

it also has some test programs for testing encoding and decoding
(feeding encoded data into a decoder for various parameters) and
so on, which I think you were also asking about recently.

cheers,

Conrad.
--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to
'speex-dev-request@xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is
needed.
Unsubscribe messages sent to the list will be ignored/filtered.