[speex-dev] Error in my code

[Willie Engelbrecht]

Hi

I apologise if the following message is inappropriate for
this list. However, I feel this is the only place where I
can get some help with my problem. 

BOOL CALLBACK RecordProc(HRECORD hRecord, void *buffer,
DWORD length, DWORD user)
{
    try
    {
       long sent = 0;
       long inputOffset = 0;
       long outputOffset = 0;
       long nbBytes = 0;
       char *outputBuffer = NULL;

       outputBuffer = (char*)malloc(65535);
       memset(speexBuffer, 0, 65536);

       while (inputOffset < length)
       {
          (float*)buffer = (float*)buffer + (frameSize);

          speex_bits_reset(&bits);

          speex_encode(enc_state, (float*)buffer, &bits);
          nbBytes = speex_bits_write(&bits, outputBuffer +
outputOffset, 65535);

          inputOffset += frameSize;
          outputOffset += nbBytes;
       }

       MainForm->memoOutput->Lines->Append("A buffer size
of '" + (String)length + 
       "' was compressed to '" + (String)outputOffset +
"'");   

       return true;
    }   
    catch (Exception err)
    {
       MainForm->memoOutput->Lines->Append("Exceotion
thrown. Message: " + err.Message); 
    }

RecordProc is a callback function called every 250
milliseconds with recorded data stored in 'buffer' with
length 'length'. Data is in float format. Framesize is 640
(uwb mode). With each call, length has a size of about
32000 (hz). After 5 calls (ie: the sixth call), the program
crashes with the following messages in message boxes:

log: OVERFLOW error
sqrt: DOMAIN error
log: OVERFLOW error
log10: SING error
log: OVERFLOW error
log: OVERFLOW error
log: OVERFLOW error
log: OVERFLOW error
log: OVERFLOW error

And then an exception is thrown:
Exception: Access violation

<p>Output on memoOuput:
A buffer size of '26880' was compressed to '3780'
A buffer size of '30720' was compressed to '4320'
A buffer size of '30720' was compressed to '4320'
A buffer size of '30720' was compressed to '4320'
A buffer size of '30720' was compressed to '4320'

<p>The compiler returns me to the following line:
speex_encode(enc_state, (float*)buffer, &bits);

<p>This is how speex was initialised:
speex_bits_init(&bits);
enc_state = speex_encoder_init(&speex_uwb_mode);

peex_encoder_ctl(enc_state,SPEEX_GET_FRAME_SIZE,&frameSize);

long x = 32000;
speex_encoder_ctl(enc_state,SPEEX_SET_SAMPLING_RATE,&x);

<p>What am I doing wrong?
Compiler: Borland C++ Builder 6 Professional.
OS: Windows XP
Speex version: 1.01
Sound library: BASS 2.0

Thanks in advance for any help.
Willie
___________________________________________
 Look Good, Feel Good www.healthiest.co.za

--- >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 at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.