// reads a wav file, sends packetized buffers to the server,
int UDPsend(UDPinfo *UI, TCPinfo *TI)
{
WSABUF filecontents;
DWORD bytetoSend;
DWORD flags = 0;
FILE *fp;
int byteSent = 0;
int bufpos = 0;
int numpackets;
memset((void *)&UI->WH, 0, sizeof(wavheader));
fp = wavOpen(&UI->WH);
filecontents.buf = (char *) malloc (BUFSIZE);
filecontents.buf = UI->WH.soundBuffer;
filecontents.len = BUFSIZE;
numpackets = (UI->WH.dataSize / BUFSIZE);
bytetoSend = (numpackets * SOUND_DATA_SIZE)+(numpackets * 44);// do math for this ...soundbuffer/512 then add header to each of those
TCPcontrolsend(TI, UI, UI->WH.size);
while(bytetoSend > byteSent)
{
filecontents.buf = packetize(&UI->WH, &bufpos);
byteSent += sendto(UI->sd, filecontents.buf, BUFSIZE, flags, (struct sockaddr *)&UI->server, UI->server_len);
}
return 0;
}
void UDPread(UDPinfo *UI, int filesize)
{
WSABUF UDPread;
int bytesRecv = 0;
DWORD flags = 0;
int err;
WAVEHDR* waveBlocks;
FILE *fp;
WAVEFORMATEX wfx;
wavheader WH;
HWAVEOUT hWaveOut;
char data[BUFSIZE];
int i = 0;
UDPread.buf = (char *) malloc (BUFSIZE);
UDPread.len = BUFSIZE;
waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
waveFreeBlockCount = BLOCK_COUNT;
waveCurrentBlock = 0;
InitializeCriticalSection(&waveCriticalSection);
fp = wavOpen(&WH);
wfx.nSamplesPerSec = WH.sampleRate;
wfx.wBitsPerSample = 16;
wfx.nChannels = 2;
wfx.cbSize = 0;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample * wfx.nChannels) >> 3;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
if((err = waveOutOpen(&hWaveOut, WAVE_MAPPER, &wfx,(DWORD_PTR)waveOutProc, (DWORD_PTR)&waveFreeBlockCount, CALLBACK_FUNCTION)) != MMSYSERR_NOERROR)
{
fprintf(stdout, "unable to open wave mapper device");
fprintf(stdout, "%d", err);
ExitProcess(1);
}
while(bytesRecv < filesize)
{
if(recvfrom(UI->sd, UDPread.buf, BUFSIZE, flags,NULL,NULL) == SOCKET_ERROR)
{
err = WSAGetLastError();
if(err != ERROR_IO_PENDING)
{
// error during read
}
}
memcpy(data,UDPread.buf, BUFSIZE);
writeAudio(hWaveOut, data, BUFSIZE, waveBlocks, waveCriticalSection);
bytesRecv += BUFSIZE;
}
/*
* unprepare any blocks that are still prepared
*/
for(i = 0; i < waveFreeBlockCount; i++)
{
if(waveBlocks[i].dwFlags & WHDR_PREPARED)
{
waveOutUnprepareHeader(hWaveOut, &waveBlocks[i], sizeof(WAVEHDR));
}
}
DeleteCriticalSection(&waveCriticalSection);
freeBlocks(waveBlocks);
waveOutClose(hWaveOut);
}
