private static void Conversion()
{
string filename = "audio_bin2";
byte[] myBytes =File.ReadAllBytes(filename); // entre 0 et 255 short
short[] myShort = new short[myBytes.Length]; // entre 0 et | 257
short[] myShortDouble = new short[myBytes.Length*2];
byte[] myBytes16MHz = new byte[myShortDouble.Length * 2];
int short_intervalle = short.MaxValue - short.MinValue;
int multiplieur = short_intervalle/Byte.MaxValue;
for (int i = 0; i < myBytes.Length; i++)
{
short sh = myBytes[i];
int tampon = short.MinValue + (sh * multiplieur);
myShort[i] = (short)(tampon);
}
for (int i = 0; i < myShort.Length; i++)
{
myShortDouble[2*i] = myShort[i];
if (i < myShort.Length-1)
{
short half1 = (short)(myShort[i] / 2);
short half2 = (short)(myShort[i + 1] / 2);
myShortDouble[2 * i + 1] = (short)(half1 + half2);
}
if (i == myShort.Length - 1)
{
myShortDouble[2 * i+1] = myShort[i];
}
}
for (int i = 0; i < myShortDouble.Length; i++)
{
myBytes16MHz[2*i] = (byte)myShortDouble[i];
myBytes16MHz[2*i+1] = (byte)(myShortDouble[i] >> 8);
}
/* DateTime d = DateTime.Now;
string datePatt = @"Mdyyyyhhmmsstt";
string filename2 = "audio_raw_" + d.ToString(datePatt);
FileStream fileStream2 = new FileStream(filename2, FileMode.Create);
fileStream2.Write((byte[])myBytes16MHz, 0, myBytes16MHz.Length);
fileStream2.Close();*///MemoryStream get buffer
DateTime d = DateTime.Now;
string datePatt = @"Mdyyyyhhmmsstt";
Console.WriteLine("Conversion finie !!");
string outputFile = "audio_flac_" + d.ToString(datePatt) + ".flac";
FlakeWriter flac = new FlakeWriter(null, 16, 1, 16000, File.Create(outputFile));
//FlacWriter flac = new FlacWriter(File.Create(outputFile), 16, 1, 16000);
//flac.Write(myBytes16MHz, 0, myBytes16MHz.Length);
//flac.Write();
flac.Close();
}
private static Tuple<int, string> WavToFlacHelper(WAVReader audioSource, string targetFlacPath)
{
int sampleRate;
AudioBuffer buffer = new AudioBuffer(audioSource, 0x10000);
FlakeWriterSettings settings = new FlakeWriterSettings();
settings.PCM = audioSource.PCM;
FlakeWriter audioDestination = new FlakeWriter(targetFlacPath, settings);
while (audioSource.Read(buffer, -1) != 0)
{
audioDestination.Write(buffer);
}
sampleRate = settings.PCM.SampleRate;
audioDestination.Close();
audioSource.Close();
return new Tuple<int, string>(sampleRate, targetFlacPath);
}
/// <summary> Конвертирование wav-файла во flac </summary>
/// <returns>Частота дискретизации</returns>
public static int Wav2Flac(Stream wavStream, Stream flacStream)
{
int sampleRate = 0;
IAudioSource audioSource = new WAVReader(null, wavStream);
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
FlakeWriter flakewriter = new FlakeWriter(null, flacStream, audioSource.PCM);
sampleRate = audioSource.PCM.SampleRate;
FlakeWriter audioDest = flakewriter;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
return sampleRate;
}
public static int Wav2Flac(String wavName, string flacName)
{
int sampleRate = 0;
IAudioSource audioSource = new WAVReader(wavName, null);
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
FlakeWriter flakewriter = new FlakeWriter(flacName, audioSource.PCM);
sampleRate = audioSource.PCM.SampleRate;
FlakeWriter audioDest = flakewriter;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
audioDest.Close();
audioDest.Close();
audioSource.Close();
return sampleRate;
}
private byte[] Wav2FlacBuffConverter(byte[] Buffer)
{
Stream OutWavStream = new MemoryStream();
Stream OutFlacStream = new MemoryStream();
AudioPCMConfig pcmconf = new AudioPCMConfig(16, 1, 16000);
WAVWriter wr = new WAVWriter(null, OutWavStream, pcmconf);
wr.Write(new AudioBuffer(pcmconf, Buffer, Buffer.Length / 2));
OutWavStream.Seek(0, SeekOrigin.Begin);
WAVReader audioSource = new WAVReader(null, OutWavStream);
if (audioSource.PCM.SampleRate != 16000)
return null;
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
FlakeWriter flakeWriter = new FlakeWriter(null, OutFlacStream, audioSource.PCM);
flakeWriter.CompressionLevel = 8;
while (audioSource.Read(buff, -1) != 0)
{
flakeWriter.Write(buff);
}
OutFlacStream.Seek(0, SeekOrigin.Begin);
byte[] barr = new byte[OutFlacStream.Length];
OutFlacStream.Read(barr, 0, (int)OutFlacStream.Length);
return barr;
}
public async Task TestWriting()
{
var wavStream =
await
(await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///test.wav")))
.OpenStreamForReadAsync();
var expectedBytes =
ReadFully(await
(await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///flake.flac")))
.OpenStreamForReadAsync());
var buff = WAVReader.ReadAllSamples(wavStream);
FlakeWriter target;
var outputStream = new MemoryStream();
target = new FlakeWriter(outputStream, new FlakeWriterSettings { PCM = buff.PCM, EncoderMode = "7" });
target.Settings.Padding = 1;
target.DoSeekTable = false;
target.Write(buff);
target.Close();
outputStream.Seek(0, SeekOrigin.Begin);
var resultContent = outputStream.ToArray();
var outStream = await ApplicationData.Current.LocalFolder.OpenStreamForWriteAsync("out.flac",
CreationCollisionOption.ReplaceExisting);
outStream.Write(resultContent, 0, resultContent.Length);
outStream.Dispose();
Debug.WriteLine(ApplicationData.Current.LocalFolder.Path);
CollectionAssert.AreEqual(expectedBytes, outputStream.ToArray(), "result and expected doesn't match.");
}
public void TestWriting()
{
AudioBuffer buff = WAVReader.ReadAllSamples("test.wav", null);
FlakeWriter target;
target = new FlakeWriter("flakewriter0.flac", null, new FlakeWriterSettings { PCM = buff.PCM, EncoderMode = "7" });
target.Settings.Padding = 1;
target.DoSeekTable = false;
//target.Vendor = "CUETools";
//target.CreationTime = DateTime.Parse("15 Aug 1976");
target.FinalSampleCount = buff.Length;
target.Write(buff);
target.Close();
//CollectionAssert.AreEqual(File.ReadAllBytes("flake.flac"), File.ReadAllBytes("flakewriter0.flac"), "flakewriter0.flac doesn't match.");
target = new FlakeWriter("flakewriter1.flac", null, new FlakeWriterSettings { PCM = buff.PCM, EncoderMode = "7" });
target.Settings.Padding = 1;
target.DoSeekTable = false;
//target.Vendor = "CUETools";
//target.CreationTime = DateTime.Parse("15 Aug 1976");
target.Write(buff);
target.Close();
CollectionAssert.AreEqual(File.ReadAllBytes("flake.flac"), File.ReadAllBytes("flakewriter1.flac"), "flakewriter1.flac doesn't match.");
}
private void ConvertToFlac(Stream sourceStream, Stream destinationStream) {
var audioSource = new WAVReader(null, sourceStream);
try {
if (audioSource.PCM.SampleRate != 16000) {
throw new InvalidOperationException("Incorrect frequency - WAV file must be at 16 KHz.");
}
var buff = new AudioBuffer(audioSource, 0x10000);
var flakeWriter = new FlakeWriter(null, destinationStream, audioSource.PCM);
// flakeWriter.CompressionLevel = 8;
while (audioSource.Read(buff, -1) != 0) {
flakeWriter.Write(buff);
}
flakeWriter.Close();
}
finally {
audioSource.Close();
}
}
/// <summary>
/// Convert stream of wav to flac format and send it to google speech recognition service.
/// </summary>
/// <param name="stream">wav stream</param>
/// <returns>recognized result</returns>
/// // Step 1- Converts wav stream to flac
public static string WavStreamToGoogle(Stream stream)
{
FlakeWriter audioDest = null;
IAudioSource audioSource = null;
string answer;
try
{
var outStream = new MemoryStream();
stream.Position = 0;
audioSource = new WAVReader("", stream);
var buff = new AudioBuffer(audioSource, 0x10000);
audioDest = new FlakeWriter("", outStream, audioSource.PCM);
var sampleRate = audioSource.PCM.SampleRate;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
answer = GoogleRequest(outStream, sampleRate);
}
finally
{
if (audioDest != null) audioDest.Close();
if (audioSource != null) audioSource.Close();
}
return answer;
}
/// <summary>
/// Convert .wav file to .flac file with the same name
/// </summary>
/// <param name="WavName">path to .wav file</param>
/// <returns>Sample Rate of converted .flac</returns>
public static int Wav2Flac(string WavName)
{
int sampleRate;
var flacName = Path.ChangeExtension(WavName, "flac");
FlakeWriter audioDest = null;
IAudioSource audioSource = null;
try
{
audioSource = new WAVReader(WavName, null);
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
audioDest = new FlakeWriter(flacName, audioSource.PCM);
sampleRate = audioSource.PCM.SampleRate;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
}
finally
{
if (audioDest != null) audioDest.Close();
if (audioSource != null) audioSource.Close();
}
return sampleRate;
}
/// <summary>Конвертирование wav-файла во flac</summary>
/// <returns>Частота дискретизации</returns>
private static void _Wav2Flac(String wavName, string flacName)
{
Debug.Assert(wavName != null);
Debug.Assert(!string.IsNullOrEmpty(flacName));
IAudioSource audioSource = new WAVReader(wavName, null);
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
FlakeWriter flakewriter = new FlakeWriter(flacName, audioSource.PCM);
FlakeWriter audioDest = flakewriter;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
audioDest.Close();
audioSource.Close();
}
static int Main(string[] args)
{
TextWriter stdout = Console.Out;
Console.SetOut(Console.Error);
DateTime start = DateTime.Now;
TimeSpan lastPrint = TimeSpan.FromMilliseconds(0);
bool debug = false, quiet = false;
string prediction_type = null;
string stereo_method = null;
string window_method = null;
string order_method = null;
string window_function = null;
string input_file = null;
string output_file = null;
int min_partition_order = -1, max_partition_order = -1,
min_lpc_order = -1, max_lpc_order = -1,
min_fixed_order = -1, max_fixed_order = -1,
min_precision = -1, max_precision = -1,
blocksize = -1, estimation_depth = -1;
int level = -1, padding = -1, vbr_mode = -1;
bool do_md5 = true, do_seektable = true, do_verify = false;
bool buffered = false;
for (int arg = 0; arg < args.Length; arg++)
{
bool ok = true;
if (args[arg].Length == 0)
ok = false;
else if (args[arg] == "--debug")
debug = true;
else if ((args[arg] == "-q" || args[arg] == "--quiet"))
quiet = true;
else if (args[arg] == "--verify")
do_verify = true;
else if (args[arg] == "--no-seektable")
do_seektable = false;
else if (args[arg] == "--no-md5")
do_md5 = false;
else if (args[arg] == "--buffered")
buffered = true;
else if ((args[arg] == "-o" || args[arg] == "--output") && ++arg < args.Length)
output_file = args[arg];
else if ((args[arg] == "-t" || args[arg] == "--prediction-type") && ++arg < args.Length)
prediction_type = args[arg];
else if ((args[arg] == "-s" || args[arg] == "--stereo") && ++arg < args.Length)
stereo_method = args[arg];
else if ((args[arg] == "-m" || args[arg] == "--order-method") && ++arg < args.Length)
order_method = args[arg];
else if ((args[arg] == "-w" || args[arg] == "--window") && ++arg < args.Length)
window_function = args[arg];
else if (args[arg] == "--window-method" && ++arg < args.Length)
window_method = args[arg];
else if ((args[arg] == "-r" || args[arg] == "--partition-order") && ++arg < args.Length)
{
ok = (args[arg].Split(',').Length == 2 &&
int.TryParse(args[arg].Split(',')[0], out min_partition_order) &&
int.TryParse(args[arg].Split(',')[1], out max_partition_order)) ||
int.TryParse(args[arg], out max_partition_order);
}
else if ((args[arg] == "-l" || args[arg] == "--lpc-order") && ++arg < args.Length)
{
ok = (args[arg].Split(',').Length == 2 &&
int.TryParse(args[arg].Split(',')[0], out min_lpc_order) &&
int.TryParse(args[arg].Split(',')[1], out max_lpc_order)) ||
int.TryParse(args[arg], out max_lpc_order);
}
else if ((args[arg] == "-f" || args[arg] == "--fixed-order") && ++arg < args.Length)
{
ok = (args[arg].Split(',').Length == 2 &&
int.TryParse(args[arg].Split(',')[0], out min_fixed_order) &&
int.TryParse(args[arg].Split(',')[1], out max_fixed_order)) ||
int.TryParse(args[arg], out max_fixed_order);
}
else if ((args[arg] == "-e" || args[arg] == "--estimation-depth") && ++arg < args.Length)
ok = int.TryParse(args[arg], out estimation_depth);
else if ((args[arg] == "-c" || args[arg] == "--max-precision") && ++arg < args.Length)
{
ok = (args[arg].Split(',').Length == 2 &&
int.TryParse(args[arg].Split(',')[0], out min_precision) &&
int.TryParse(args[arg].Split(',')[1], out max_precision)) ||
int.TryParse(args[arg], out max_precision);
}
else if ((args[arg] == "-v" || args[arg] == "--vbr"))
ok = (++arg < args.Length) && int.TryParse(args[arg], out vbr_mode);
else if ((args[arg] == "-b" || args[arg] == "--blocksize") && ++arg < args.Length)
ok = int.TryParse(args[arg], out blocksize);
else if ((args[arg] == "-p" || args[arg] == "--padding") && ++arg < args.Length)
ok = int.TryParse(args[arg], out padding);
else if (args[arg] != "-" && args[arg][0] == '-' && int.TryParse(args[arg].Substring(1), out level))
ok = level >= 0 && level <= 11;
else if ((args[arg][0] != '-' || args[arg] == "-") && input_file == null)
input_file = args[arg];
else
ok = false;
if (!ok)
{
Usage();
return 1;
}
}
if (input_file == null || ((input_file == "-" || Path.GetExtension(input_file) == ".flac") && output_file == null))
{
Usage();
return 2;
}
if (!quiet)
{
Console.WriteLine("CUETools.Flake, Copyright (C) 2009 Grigory Chudov.");
Console.WriteLine("Based on Flake encoder by Justin Ruggles, <http://flake-enc.sourceforge.net/>.");
Console.WriteLine("This is free software under the GNU GPLv3+ license; There is NO WARRANTY, to");
Console.WriteLine("the extent permitted by law. <http://www.gnu.org/licenses/> for details.");
}
IAudioSource audioSource;
if (input_file == "-")
audioSource = new WAVReader("", Console.OpenStandardInput());
else if (File.Exists(input_file) && Path.GetExtension(input_file) == ".wav")
audioSource = new WAVReader(input_file, null);
else if (File.Exists(input_file) && Path.GetExtension(input_file) == ".flac")
audioSource = new FlakeReader(input_file, null);
else
{
Usage();
return 3;
}
if (buffered)
audioSource = new AudioPipe(audioSource, 0x10000);
if (output_file == null)
output_file = Path.ChangeExtension(input_file, "flac");
FlakeWriter flake = new FlakeWriter((output_file == "-" || output_file == "nul") ? "" : output_file,
output_file == "-" ? Console.OpenStandardOutput() :
output_file == "nul" ? new NullStream() : null,
audioSource.PCM);
flake.FinalSampleCount = audioSource.Length;
IAudioDest audioDest = flake;
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
try
{
if (level >= 0)
flake.CompressionLevel = level;
if (prediction_type != null)
flake.PredictionType = Flake.LookupPredictionType(prediction_type);
if (stereo_method != null)
flake.StereoMethod = Flake.LookupStereoMethod(stereo_method);
if (window_method != null)
flake.WindowMethod = Flake.LookupWindowMethod(window_method);
if (order_method != null)
flake.OrderMethod = Flake.LookupOrderMethod(order_method);
if (window_function != null)
flake.WindowFunction = Flake.LookupWindowFunction(window_function);
if (min_partition_order >= 0)
flake.MinPartitionOrder = min_partition_order;
if (max_partition_order >= 0)
flake.MaxPartitionOrder = max_partition_order;
if (min_lpc_order >= 0)
flake.MinLPCOrder = min_lpc_order;
if (max_lpc_order >= 0)
flake.MaxLPCOrder = max_lpc_order;
if (min_fixed_order >= 0)
flake.MinFixedOrder = min_fixed_order;
if (max_fixed_order >= 0)
flake.MaxFixedOrder = max_fixed_order;
if (max_precision >= 0)
flake.MaxPrecisionSearch = max_precision;
if (min_precision >= 0)
flake.MinPrecisionSearch = min_precision;
if (blocksize >= 0)
flake.BlockSize = blocksize;
if (estimation_depth >= 0)
flake.EstimationDepth = estimation_depth;
if (padding >= 0)
flake.Padding = padding;
if (vbr_mode >= 0)
flake.VBRMode = vbr_mode;
flake.DoSeekTable = do_seektable;
(flake.Settings as FlakeWriterSettings).DoVerify = do_verify;
(flake.Settings as FlakeWriterSettings).DoMD5 = do_md5;
}
catch (Exception ex)
{
Usage();
Console.WriteLine("");
Console.WriteLine("Error: {0}.", ex.Message);
return 4;
}
if (!quiet)
{
Console.WriteLine("Filename : {0}", input_file);
Console.WriteLine("File Info : {0}kHz; {1} channel; {2} bit; {3}", audioSource.PCM.SampleRate, audioSource.PCM.ChannelCount, audioSource.PCM.BitsPerSample, TimeSpan.FromSeconds(audioSource.Length * 1.0 / audioSource.PCM.SampleRate));
}
#if !DEBUG
try
#endif
{
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
TimeSpan elapsed = DateTime.Now - start;
if (!quiet)
{
if ((elapsed - lastPrint).TotalMilliseconds > 60)
{
Console.Error.Write("\rProgress : {0:00}%; {1:0.00}x; {2}/{3}",
100.0 * audioSource.Position / audioSource.Length,
audioSource.Position / elapsed.TotalSeconds / audioSource.PCM.SampleRate,
elapsed,
TimeSpan.FromMilliseconds(elapsed.TotalMilliseconds / audioSource.Position * audioSource.Length)
);
lastPrint = elapsed;
}
}
}
audioDest.Close();
}
#if !DEBUG
catch (Exception ex)
{
Console.Error.Write("\r \r");
Console.WriteLine("Error : {0}", ex.Message);
audioDest.Delete();
audioSource.Close();
return 5;
}
#endif
TimeSpan totalElapsed = DateTime.Now - start;
if (!quiet)
{
Console.Error.Write("\r \r");
Console.WriteLine("Results : {0:0.00}x; {2} bytes in {1} seconds;",
audioSource.Position / totalElapsed.TotalSeconds / audioSource.PCM.SampleRate,
totalElapsed,
flake.TotalSize
);
}
audioSource.Close();
if (debug)
{
Console.SetOut(stdout);
Console.Out.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}..{7}\t{8}..{9}\t{10}..{11}\t{12}..{13}\t{14}\t{15}",
flake.TotalSize,
flake.UserProcessorTime.TotalSeconds > 0 ? flake.UserProcessorTime.TotalSeconds : totalElapsed.TotalSeconds,
flake.PredictionType.ToString().PadRight(15),
flake.StereoMethod.ToString().PadRight(15),
(flake.OrderMethod.ToString() + "(" + flake.EstimationDepth.ToString() + ")").PadRight(15),
flake.WindowFunction,
flake.MinPartitionOrder,
flake.MaxPartitionOrder,
flake.MinLPCOrder,
flake.MaxLPCOrder,
flake.MinFixedOrder,
flake.MaxFixedOrder,
flake.MinPrecisionSearch,
flake.MaxPrecisionSearch,
flake.BlockSize,
flake.VBRMode
);
}
return 0;
}
private static byte[] WaveSamplesToFlake(byte[] combinedChunks)
{
var audioBuffer = new AudioBuffer(new AudioPCMConfig(16, 1, 22050), combinedChunks, combinedChunks.Length/2);
byte[] flakeBuffer;
using (var flakeStream = new MemoryStream())
{
var flakeWriter = new FlakeWriter(null, flakeStream,
new FlakeWriterSettings {PCM = audioBuffer.PCM, EncoderMode = "7"});
flakeWriter.Settings.Padding = 1;
flakeWriter.DoSeekTable = false;
flakeWriter.FinalSampleCount = audioBuffer.Length;
flakeWriter.Write(audioBuffer);
flakeStream.Position = 0;
using (var br = new BinaryReader(flakeStream))
{
flakeBuffer = new byte[flakeStream.Length];
br.Read(flakeBuffer, 0, flakeBuffer.Length);
}
}
return flakeBuffer;
}
private byte[] Wav2Flac(MemoryStream waveStreamMemory)
{
if (waveStreamMemory.Length >= 3200) // 0
{
Log.Write("Ева услышала Вас.", Log.Category.Information);
byte[] Array = null;
WaveFileWriter writer = new WaveFileWriter("C:\\rec_temp.wav", waveInEvent.WaveFormat);
writer.Write(waveStreamMemory.ToArray(), 0, waveStreamMemory.ToArray().Length);
writer.Close();
IAudioSource audioSource = new WAVReader("C:\\rec_temp.wav", null);
AudioPCMConfig audioPCMConfig = new AudioPCMConfig(16, 1, 16000);
AudioBuffer buff = new AudioBuffer(audioSource, 0x10000);
//AudioBuffer buffMemory = new AudioBuffer(audioPCMConfig, waveStreamMemory.ToArray(), Convert.ToInt32(waveStreamMemory.Length) / audioPCMConfig.BlockAlign);
FlakeWriter flakewriter = new FlakeWriter(null, audioSource.PCM);
FlakeWriter audioDest = flakewriter;
while (audioSource.Read(buff, -1) != 0)
{
audioDest.Write(buff);
}
if (flakewriter.BufferMemory != null)
{
Array = flakewriter.BufferMemory.ToArray();
}
audioDest.Close();
audioSource.Close();
return Array;
}
return null;
}
