public bool GetWavInfo(string strpath)
{
WavInfo wavInfo = new WavInfo();
FileInfo fi = new FileInfo(strpath);
FileStream fs = fi.OpenRead();
if (fs.Length >= 44)
{
byte[] bInfo = new byte[44];
fs.Read(bInfo, 0, 44);
wavInfo.groupid = Encoding.Default.GetString(bInfo, 0, 4);
wavInfo.filesize = BitConverter.ToInt32(bInfo, 4);
wavInfo.rifftype = Encoding.Default.GetString(bInfo, 8, 4);
wavInfo.chunkid = Encoding.Default.GetString(bInfo, 12, 4);
if (wavInfo.groupid == "RIFF" && wavInfo.rifftype == "WAVE" && wavInfo.chunkid == "fmt ")
{
wavInfo.chunksize = BitConverter.ToInt32(bInfo, 16);
wavInfo.wformattag = BitConverter.ToInt16(bInfo, 20);
wavInfo.wchannels = BitConverter.ToUInt16(bInfo, 22);
wavInfo.dwsamplespersec = BitConverter.ToUInt32(bInfo, 24);
wavInfo.dwavgbytespersec = BitConverter.ToUInt32(bInfo, 28);
wavInfo.wblockalign = BitConverter.ToUInt16(bInfo, 32);
wavInfo.wbitspersample = BitConverter.ToUInt16(bInfo, 34);
wavInfo.datachunkid = Encoding.Default.GetString(bInfo, 36, 4);
wavInfo.datasize = BitConverter.ToInt32(bInfo, 40);
// 读取音频数据
int readBytes = 44, bufBytes = 0, buffSize = 0;
int dataSize = (int)wavInfo.datasize;
byte[] fileBuf = new byte[G722_WAVE_FRAME_SIZE];
_wav_buffer = new sbyte[G722_WAVE_FRAME_SIZE];
_dec_buffer = new sbyte[G722_VOICE_FRAME_SIZE];
//fs.Read(_buffer, 44, wavInfo.datasize);
while (readBytes < dataSize)
{
bufBytes = dataSize - readBytes;
if (bufBytes > G722_WAVE_FRAME_SIZE)
{
bufBytes = G722_WAVE_FRAME_SIZE;
}
buffSize = fs.Read(fileBuf, 0, bufBytes);
for (int i = 0; i < bufBytes; i++)
{
if (fileBuf[i] > 127)
{
_wav_buffer[i] = (sbyte)(fileBuf[i] - 256);
}
else
{
_wav_buffer[i] = (sbyte)fileBuf[i];
}
}
HCNetSDK.NET_DVR_EncodeG722Frame(_dec_handle, _wav_buffer, _dec_buffer);
readBytes += buffSize;
}
return(true);
}
}
return(false);
}
public void SendWavFile(object strpath)
{
WavInfo wavInfo = new WavInfo();
FileInfo fi = new FileInfo((string)strpath);
FileStream fs = fi.OpenRead();
bool ret = false;
if (fs.Length >= 44)
{
byte[] bInfo = new byte[44];
fs.Read(bInfo, 0, 44);
wavInfo.groupid = Encoding.Default.GetString(bInfo, 0, 4);
wavInfo.filesize = BitConverter.ToInt32(bInfo, 4);
wavInfo.rifftype = Encoding.Default.GetString(bInfo, 8, 4);
wavInfo.chunkid = Encoding.Default.GetString(bInfo, 12, 4);
if (wavInfo.groupid == "RIFF" && wavInfo.rifftype == "WAVE" && wavInfo.chunkid == "fmt ")
{
wavInfo.chunksize = BitConverter.ToInt32(bInfo, 16);
wavInfo.wformattag = BitConverter.ToInt16(bInfo, 20);
wavInfo.wchannels = BitConverter.ToUInt16(bInfo, 22);
wavInfo.dwsamplespersec = BitConverter.ToUInt32(bInfo, 24);
wavInfo.dwavgbytespersec = BitConverter.ToUInt32(bInfo, 28);
wavInfo.wblockalign = BitConverter.ToUInt16(bInfo, 32);
wavInfo.wbitspersample = BitConverter.ToUInt16(bInfo, 34);
wavInfo.datachunkid = Encoding.Default.GetString(bInfo, 36, 4);
wavInfo.datasize = BitConverter.ToInt32(bInfo, 40);
// 读取音频数据
int readBytes = 0, bufBytes = 0, buffSize = 0;
int dataSize = (int)wavInfo.datasize;
byte[] fileBuf = new byte[G722_WAVE_FRAME_SIZE];
byte[] _wav_buffer = new byte[G722_WAVE_FRAME_SIZE];
byte[] _dec_buffer = new byte[G722_VOICE_FRAME_SIZE];
//fs.Read(_buffer, 44, wavInfo.datasize);
while (readBytes < dataSize)
{
bufBytes = dataSize - readBytes;
if (bufBytes > G722_WAVE_FRAME_SIZE)
{
bufBytes = G722_WAVE_FRAME_SIZE;
}
buffSize = fs.Read(fileBuf, 0, bufBytes);
if (buffSize == 0)
{
break;
}
ret = HCNetSDK.NET_DVR_EncodeG722Frame(_dec_handle, fileBuf, _dec_buffer);
ret = HCNetSDK.NET_DVR_VoiceComSendData(_voice_handle, _dec_buffer, G722_VOICE_FRAME_SIZE);
readBytes += buffSize;
Thread.Sleep(40);
}
StopTalk();
//return true;
}
}
// return false;
}
