/// <summary>
/// Converte um WaveStream para MP3Stream.
/// </summary>
/// <param name="wavFile"/>
/// <returns></returns>
public static MemoryStream ConverterWaveStreamParaMp3Stream(Wave32To16Stream wavFile)
{
var retMs = new MemoryStream();
using (var wtr = new LameMP3FileWriter(retMs, wavFile.WaveFormat, 128))
{
wavFile.CopyTo(wtr);
return retMs;
}
}
public WasapiProvider()
{
// Init Pipes
this.recordingStream = new PipeStream();
this.LoopbackMp3Stream = new PipeStream();
this.LoopbackL16Stream = new PipeStream();
// Init Wave Processor thread
Thread waveProcessorThread = new Thread(new ThreadStart(this.waveProcessor)) { Priority = ThreadPriority.Highest };
// Init Wasapi Capture
this.loopbackWaveIn = new WasapiLoopbackCapture();
this.loopbackWaveIn.DataAvailable += new EventHandler<WaveInEventArgs>(this.loopbackWaveIn_DataAvailable);
// Init Raw Wav (16bit)
WaveStream rawWave16b = new Wave32To16Stream(new RawSourceWaveStream(this.recordingStream, NAudio.Wave.WaveFormat.CreateIeeeFloatWaveFormat(this.loopbackWaveIn.WaveFormat.SampleRate, this.loopbackWaveIn.WaveFormat.Channels)));
// Convert Raw Wav to PCM with audio format in settings
var audioFormat = AudioSettings.GetAudioFormat();
if (rawWave16b.WaveFormat.SampleRate == audioFormat.SampleRate
&& rawWave16b.WaveFormat.BitsPerSample == audioFormat.BitsPerSample
&& rawWave16b.WaveFormat.Channels == audioFormat.Channels)
{
// No conversion !
this.rawConvertedStream = null;
this.pcmStream = WaveFormatConversionStream.CreatePcmStream(rawWave16b);
}
else
{
// Resampler
this.rawConvertedStream = new WaveProviderToWaveStream(new MediaFoundationResampler(rawWave16b, audioFormat));
this.pcmStream = WaveFormatConversionStream.CreatePcmStream(rawConvertedStream);
}
// Init MP3 Encoder
this.mp3Writer = new LameMP3FileWriter(this.LoopbackMp3Stream, pcmStream.WaveFormat, AudioSettings.GetMP3Bitrate());
// Start Recording
this.loopbackWaveIn.StartRecording();
// Start Wave Processor thread
waveProcessorThread.Start();
}
private byte[] RealMix(ReceivedRtp item1, ReceivedRtp item2)
{
if (item1 == null || item2 == null) return null;
if (item1.size == 0 || item2.size == 0) return null;
byte[] wavSrc1 = new byte[item1.size - headersize];
byte[] wavSrc2 = new byte[item2.size - headersize];
Array.Copy(item1.buff, headersize, wavSrc1, 0, (item1.size - headersize));
Array.Copy(item2.buff, headersize, wavSrc2, 0, (item2.size - headersize));
WaveMixerStream32 mixer = new WaveMixerStream32();
// mixer.AutoStop = true;
MemoryStream memstrem = new MemoryStream(wavSrc1);
RawSourceWaveStream rawsrcstream = new RawSourceWaveStream(memstrem, this.codec);
WaveFormatConversionStream conversionstream = new WaveFormatConversionStream(pcmFormat16, rawsrcstream);
WaveChannel32 channelstream = new WaveChannel32(conversionstream);
mixer.AddInputStream(channelstream);
memstrem = new MemoryStream(wavSrc2);
rawsrcstream = new RawSourceWaveStream(memstrem, this.codec);
conversionstream = new WaveFormatConversionStream(pcmFormat16, rawsrcstream);
channelstream = new WaveChannel32(conversionstream);
mixer.AddInputStream(channelstream);
mixer.Position = 0;
Wave32To16Stream to16 = new Wave32To16Stream(mixer);
var convStm = new WaveFormatConversionStream(pcmFormat8, to16);
byte[] mixedbytes = new byte[(int)convStm.Length];
int chk = convStm.Read(mixedbytes, 0, (int)convStm.Length);
//Buffer.BlockCopy(tobyte, 0, writingBuffer, 0, tobyte.Length);
memstrem.Close();
rawsrcstream.Close();
conversionstream.Close();
channelstream.Close();
convStm.Close(); convStm.Dispose(); convStm = null;
to16.Close(); to16.Dispose(); to16 = null;
mixer.Close(); mixer.Dispose(); mixer = null;
return mixedbytes;
}
/// <summary>
/// Mescla dois arquivos Mp3, sobrepondo suas faixas.
/// </summary>
public static MemoryStream MesclarMp3(string arquivoTrilhaSonora, float volumeTrilha, string arquivoVoz, float volumeVoz)
{
// Lê os arquivos MP3 do disco
Mp3FileReader mpTrilhaSonora = new Mp3FileReader(arquivoTrilhaSonora);
Mp3FileReader mpVoz = new Mp3FileReader(arquivoVoz);
//Decodifica os arquivos MP3
WaveStream trilhaSonora = WaveFormatConversionStream.CreatePcmStream(mpTrilhaSonora);
WaveStream voz = WaveFormatConversionStream.CreatePcmStream(mpVoz);
var mixer = new WaveMixerStream32 { AutoStop = true };
//var vozOffset = trilhaSonora.TotalTime;
//var vozOffsetted = new WaveOffsetStream(voz, TimeSpan.FromSeconds(10), TimeSpan.Zero, voz.TotalTime.Subtract(TimeSpan.FromSeconds(30)));
var trilhaSonora32 = new WaveChannel32(trilhaSonora) { PadWithZeroes = false, Volume = volumeTrilha };
mixer.AddInputStream(trilhaSonora32);
var voz32 = new WaveChannel32(voz) { PadWithZeroes = false, Volume = volumeVoz };
mixer.AddInputStream(voz32);
var wave32 = new Wave32To16Stream(mixer);
// Codifica o Wave para MP3
return ConverterWaveStreamParaMp3Stream(wave32);
}
private void ProcessMixingFinal(RcvData data, int dataSize)
{
string processingFn = string.Format("e:\\{0}_{1}_{2}.wav", data.seqnum, data.extension, data.peernumber);
List<RecInfos> ls0 = lExtension0.FindAll(
delegate(RecInfos list)
{
return list.rcvData.Equals(data) && list.isExtension == 0;
});
List<RecInfos> ls1 = lExtension1.FindAll(
delegate(RecInfos list)
{
return list.rcvData.Equals(data) && list.isExtension == 1;
});
IsExtensionComparer isExtensionCompare = new IsExtensionComparer();
ls0.Sort(isExtensionCompare);
ls1.Sort(isExtensionCompare);
int count = 0;
int count0 = ls0.Count();
int count1 = ls1.Count();
if (count0 - count1 < 0)
count = count0;
else
count = count1;
for (int i = 0; i < count; i++)
{
if (ls0[i].seq == ls1[i].seq)
{
// 믹싱
byte[] wavSrc0 = new byte[160];
byte[] wavSrc1 = new byte[160];
Array.Copy(ls0[i].voice, 12, wavSrc0, 0, wavSrc0.Length);
Array.Copy(ls1[i].voice, 12, wavSrc1, 0, wavSrc1.Length);
WaveMixerStream32 mixer = new WaveMixerStream32();
//mixer.AutoStop = true;
WaveChannel32 channelStm = null;
for (int j = 0; j < 2; j++)
{
MemoryStream memStm = null;
BufferedStream bufStm = null;
RawSourceWaveStream rawSrcStm = null;
WaveFormatConversionStream conversionStm = null;
if (j == 0)
memStm = new MemoryStream(wavSrc0);
else
memStm = new MemoryStream(wavSrc1);
bufStm = new BufferedStream(memStm);
rawSrcStm = new RawSourceWaveStream(bufStm, mulawFormat);
conversionStm = new WaveFormatConversionStream(pcmFormat, rawSrcStm);
channelStm = new WaveChannel32(conversionStm);
mixer.AddInputStream(channelStm);
}
mixer.Position = 0;
if (File.Exists(processingFn))
{
var wavefilestream = new WaveFileReader(processingFn);
byte[] wavefilebyte = new byte[(int)wavefilestream.Length];
int chk0 = wavefilestream.Read(wavefilebyte, 0, wavefilebyte.Length);
Wave32To16Stream to16 = new Wave32To16Stream(mixer);
var conversionStm = new WaveFormatConversionStream(pcmFormat, to16);
byte[] tobyte = new byte[(int)conversionStm.Length];
int chk1 = conversionStm.Read(tobyte, 0, (int)conversionStm.Length);
byte[] desByte = new byte[wavefilebyte.Length + tobyte.Length];
conversionStm.Close();
wavefilestream.Close();
Buffer.BlockCopy(wavefilebyte, 0, desByte, 0, wavefilebyte.Length);
Buffer.BlockCopy(tobyte, 0, desByte, wavefilebyte.Length, tobyte.Length);
using (MemoryStream memStm = new MemoryStream(desByte))
using (BufferedStream buffStm = new BufferedStream(memStm))
using (RawSourceWaveStream rawSrcStm = new RawSourceWaveStream(buffStm, pcmFormat))
{
WaveFileWriter.CreateWaveFile(processingFn, rawSrcStm);
}
}
else
{
var mixedStm = new Wave32To16Stream(mixer);
var convStm = new WaveFormatConversionStream(pcmFormat, mixedStm);
WaveFileWriter.CreateWaveFile(processingFn, convStm);
convStm.Close();
mixedStm.Close();
}
mixer.Close();
// 삭제
lExtension0.Remove(ls0[i]);
lExtension1.Remove(ls1[i]);
}
else if (ls0[i].seq - ls1[i].seq < 0)
{
// ls0 만 믹싱
// ls0 원본에 byte[] 붙임 > 원본 byte[]를 wavesream 으로 변환 > wave 파일로 저장
if (File.Exists(processingFn))
{
//wavefilestream = new WaveFileReader(processingFn);
}
else
{
}
// 삭제
lExtension0.Remove(ls0[i]);
ls1.Insert(i + 1, ls1[i]);
}
else if (ls0[i].seq - ls1[i].seq > 0)
{
// ls1 만 믹싱
// ls1 원본에 byte[] 붙임 > 원본 byte[]를 wavesream 으로 변환 > wave 파일로 저장
if (File.Exists(processingFn))
{
//wavefilestream = new WaveFileReader(processingFn);
}
else
{
}
// 삭제
lExtension1.Remove(ls1[i]);
ls0.Insert(i + 1, ls0[i]);
}
}
}
private void ProcessMixing2(RcvData data, int dataSize)
{
string processingFn = string.Format("d:\\{0}_{1}_{2}.wav", data.seqnum, data.extension, data.peernumber);
List<RecInfos> ls0 = lExtension0.FindAll(
delegate(RecInfos list)
{
return list.rcvData.Equals(data) && list.isExtension == 0;
});
List<RecInfos> ls1 = lExtension1.FindAll(
delegate(RecInfos list)
{
return list.rcvData.Equals(data) && list.isExtension == 1;
});
IsExtensionComparer isExtensionCompare = new IsExtensionComparer();
ls0.Sort(isExtensionCompare);
ls1.Sort(isExtensionCompare);
int count = 0;
int count0 = ls0.Count();
int count1 = ls1.Count();
if (count0 - count1 < 0)
count = count0;
else
count = count1;
byte[] buffWriting = new byte[320 * count];
for (int i = 0; i < count; i++)
{
if (ls0[i].seq == ls1[i].seq)
{
// 믹싱
// 코덱 종류에 따라서 바이트 길이는 달라질 수 있다. 실제로 만들 때 경우의 수 확인하고 만들어야 한다.
byte[] wavSrc0 = new byte[160];
byte[] wavSrc1 = new byte[160];
Array.Copy(ls0[i].voice, 12, wavSrc0, 0, wavSrc0.Length);
Array.Copy(ls1[i].voice, 12, wavSrc1, 0, wavSrc1.Length);
WaveMixerStream32 mixer = new WaveMixerStream32();
//mixer.AutoStop = true;
WaveChannel32 channelStm = null;
MemoryStream memStm = null;
BufferedStream bufStm = null;
RawSourceWaveStream rawSrcStm = null;
WaveFormatConversionStream conversionStm = null;
for (int j = 0; j < 2; j++)
{
if (j == 0)
memStm = new MemoryStream(wavSrc0);
else
memStm = new MemoryStream(wavSrc1);
bufStm = new BufferedStream(memStm);
rawSrcStm = new RawSourceWaveStream(bufStm, mulawFormat);
conversionStm = new WaveFormatConversionStream(pcmFormat, rawSrcStm);
channelStm = new WaveChannel32(conversionStm);
mixer.AddInputStream(channelStm);
}
mixer.Position = 0;
Wave32To16Stream to16 = new Wave32To16Stream(mixer);
var convStm = new WaveFormatConversionStream(pcmFormat, to16);
byte[] tobyte = new byte[(int)convStm.Length];
int chk = convStm.Read(tobyte, 0, (int)convStm.Length);
Buffer.BlockCopy(tobyte, 0, buffWriting, i * tobyte.Length, tobyte.Length);
conversionStm.Close();
rawSrcStm.Close();
bufStm.Close();
memStm.Close();
convStm.Close();
to16.Close();
channelStm.Close();
mixer.Close();
// 삭제
lExtension0.Remove(ls0[i]);
lExtension1.Remove(ls1[i]);
}
else if (ls0[i].seq - ls1[i].seq < 0)
{
// ls0 만 믹싱
// ls0 원본에 byte[] 붙임 > 원본 byte[]를 wavesream 으로 변환 > wave 파일로 저장
// 믹싱
// 코덱 종류에 따라서 바이트 길이는 달라질 수 있다. 실제로 만들 때 경우의 수 확인하고 만들어야 한다.
byte[] wavSrc0 = new byte[160];
byte[] wavSrc1 = new byte[160];
Array.Copy(ls0[i].voice, 12, wavSrc0, 0, wavSrc0.Length);
Array.Copy(ls1[i].voice, 12, wavSrc1, 0, wavSrc1.Length);
WaveMixerStream32 mixer = new WaveMixerStream32();
//mixer.AutoStop = true;
WaveChannel32 channelStm = null;
MemoryStream memStm = null;
BufferedStream bufStm = null;
RawSourceWaveStream rawSrcStm = null;
WaveFormatConversionStream conversionStm = null;
for (int j = 0; j < 2; j++)
{
if (j == 0)
memStm = new MemoryStream(wavSrc0);
else
memStm = new MemoryStream(wavSrc1);
bufStm = new BufferedStream(memStm);
rawSrcStm = new RawSourceWaveStream(bufStm, mulawFormat);
conversionStm = new WaveFormatConversionStream(pcmFormat, rawSrcStm);
channelStm = new WaveChannel32(conversionStm);
mixer.AddInputStream(channelStm);
}
mixer.Position = 0;
Wave32To16Stream to16 = new Wave32To16Stream(mixer);
var convStm = new WaveFormatConversionStream(pcmFormat, to16);
byte[] tobyte = new byte[(int)convStm.Length];
int chk = convStm.Read(tobyte, 0, (int)convStm.Length);
Buffer.BlockCopy(tobyte, 0, buffWriting, i * tobyte.Length, tobyte.Length);
conversionStm.Close();
rawSrcStm.Close();
bufStm.Close();
memStm.Close();
convStm.Close();
to16.Close();
channelStm.Close();
mixer.Close();
// 삭제
lExtension0.Remove(ls0[i]);
ls1.Insert(i + 1, ls1[i]);
}
else if (ls0[i].seq - ls1[i].seq > 0)
{
// ls1 만 믹싱
// ls1 원본에 byte[] 붙임 > 원본 byte[]를 wavesream 으로 변환 > wave 파일로 저장
// 믹싱
// 코덱 종류에 따라서 바이트 길이는 달라질 수 있다. 실제로 만들 때 경우의 수 확인하고 만들어야 한다.
byte[] wavSrc0 = new byte[160];
byte[] wavSrc1 = new byte[160];
Array.Copy(ls0[i].voice, 12, wavSrc0, 0, wavSrc0.Length);
Array.Copy(ls1[i].voice, 12, wavSrc1, 0, wavSrc1.Length);
WaveMixerStream32 mixer = new WaveMixerStream32();
//mixer.AutoStop = true;
WaveChannel32 channelStm = null;
MemoryStream memStm = null;
BufferedStream bufStm = null;
RawSourceWaveStream rawSrcStm = null;
WaveFormatConversionStream conversionStm = null;
for (int j = 0; j < 2; j++)
{
if (j == 0)
memStm = new MemoryStream(wavSrc0);
else
memStm = new MemoryStream(wavSrc1);
bufStm = new BufferedStream(memStm);
rawSrcStm = new RawSourceWaveStream(bufStm, mulawFormat);
conversionStm = new WaveFormatConversionStream(pcmFormat, rawSrcStm);
channelStm = new WaveChannel32(conversionStm);
mixer.AddInputStream(channelStm);
}
mixer.Position = 0;
Wave32To16Stream to16 = new Wave32To16Stream(mixer);
var convStm = new WaveFormatConversionStream(pcmFormat, to16);
byte[] tobyte = new byte[(int)convStm.Length];
int chk = convStm.Read(tobyte, 0, (int)convStm.Length);
Buffer.BlockCopy(tobyte, 0, buffWriting, i * tobyte.Length, tobyte.Length);
conversionStm.Close();
rawSrcStm.Close();
bufStm.Close();
memStm.Close();
convStm.Close();
to16.Close();
channelStm.Close();
mixer.Close();
// 삭제
lExtension1.Remove(ls1[i]);
ls0.Insert(i + 1, ls0[i]);
}
}
// 10개의 버프를 바이트로 만들어 WaveFileWrite
WaveFileWriting(buffWriting, processingFn);
}
