public static async Task wavConvert(string mp4Conv, Channel voice)
{
// convert source audio to AAC
// create media foundation reader to read the source (can be any supported format, mp3, wav, ...)
/*using (MediaFoundationReader reader = new MediaFoundationReader(@"d:\source.mp3"))
* {
* MediaFoundationEncoder.EncodeToAac(reader, @"D:\test.mp4");
* }*/
var channelCount = discord.GetService <AudioService>().Config.Channels;
// convert "back" to WAV
// create media foundation reader to read the AAC encoded file
using (MediaFoundationReader reader = new MediaFoundationReader(mp4Conv))
// resample the file to PCM with same sample rate, channels and bits per sample
using (ResamplerDmoStream resampledReader = new ResamplerDmoStream(reader,
new WaveFormat(48000, 16, channelCount)))
// create WAVe file
using (WaveFileWriter waveWriter = new WaveFileWriter(@"C:\music\tempaud.wav", resampledReader.WaveFormat))
{
// copy samples
resampledReader.CopyTo(waveWriter);
}
await SendAudio(@"C:\music\tempaud.wav", voice);
}
public string ConvertAACToWAV(string songTitle, string cacheDir)
{
try
{
// im going to add this in an atempt to have easier playback though naudio
// https://stackoverflow.com/questions/13486747/convert-aac-to-wav
// create media foundation reader to read the AAC encoded file
using (MediaFoundationReader reader = new MediaFoundationReader(cacheDir + songTitle + ".aac"))
// resample the file to PCM with same sample rate, channels and bits per sample
using (ResamplerDmoStream resampledReader = new ResamplerDmoStream(reader,
new WaveFormat(reader.WaveFormat.SampleRate, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels)))
// create WAVe file
using (WaveFileWriter waveWriter = new WaveFileWriter(cacheDir + songTitle + ".wav", resampledReader.WaveFormat))
{
// copy samples
resampledReader.CopyTo(waveWriter);
}
return(cacheDir + songTitle + ".wav");
}
catch (Exception error)
{
_logs.logMessage("Error", "downloader.ConvertAACToWAV", error.ToString(), "system");
return(null);
}
}
static void Main(string[] args)
{
// convert source audio to AAC
// create media foundation reader to read the source (can be any supported format, mp3, wav, ...)
using (MediaFoundationReader reader = new MediaFoundationReader(@"d:\source.mp3"))
{
MediaFoundationEncoder.EncodeToAac(reader, @"D:\test.mp4");
}
// convert "back" to WAV
// create media foundation reader to read the AAC encoded file
using (MediaFoundationReader reader = new MediaFoundationReader(@"D:\test.mp4"))
// resample the file to PCM with same sample rate, channels and bits per sample
using (ResamplerDmoStream resampledReader = new ResamplerDmoStream(reader,
new WaveFormat(reader.WaveFormat.SampleRate, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels)))
// create WAVe file
using (WaveFileWriter waveWriter = new WaveFileWriter(@"d:\test.wav", resampledReader.WaveFormat))
{
// copy samples
resampledReader.CopyTo(waveWriter);
}
}
private async Task <Tuple <string, TimeSpan> > convertToWav(string file, CancellationToken token)
{
string fileWithouExtension = Path.Combine(Path.GetFullPath(file).Replace(Path.GetFileName(file), ""), Path.GetFileNameWithoutExtension(file));
string outFile = file;
if (file.ToLower().EndsWith(".mp3"))
{
outFile = fileWithouExtension + ".wav";
token.ThrowIfCancellationRequested();
using (Mp3FileReader reader = new Mp3FileReader(file))
{
WaveFileWriter.CreateWaveFile(outFile, reader);
}
}
else if (file.ToLower().EndsWith(".m4a"))
{
outFile = fileWithouExtension + ".wav";
token.ThrowIfCancellationRequested();
using (MediaFoundationReader reader = new MediaFoundationReader(file))
{
using (ResamplerDmoStream resampledReader = new ResamplerDmoStream(reader,
new WaveFormat(reader.WaveFormat.SampleRate, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels)))
using (WaveFileWriter waveWriter = new WaveFileWriter(outFile, resampledReader.WaveFormat))
{
resampledReader.CopyTo(waveWriter);
}
}
}
token.ThrowIfCancellationRequested();
TimeSpan totalTime;
using (WaveFileReader maleReader = new WaveFileReader(outFile))
{
totalTime = maleReader.TotalTime;
}
return(await Task.FromResult <Tuple <string, TimeSpan> >(new Tuple <string, TimeSpan>(outFile, totalTime)));
}
private static string Convertm4aWav(string fullFilePath)
{
var wavFileName = String.Format(@"{0}\{1}{2}", Path.GetDirectoryName(fullFilePath), Path.GetFileNameWithoutExtension(fullFilePath), ".wav");
// convert "back" to WAV
// create media foundation reader to read the AAC encoded file
using (MediaFoundationReader reader = new MediaFoundationReader(fullFilePath)) {
// resample the file to PCM with same sample rate, channels and bits per sample
using (ResamplerDmoStream resampledReader = new ResamplerDmoStream(reader,
new WaveFormat(reader.WaveFormat.SampleRate, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels))) {
// create WAVe file
using (WaveFileWriter waveWriter = new WaveFileWriter(wavFileName, resampledReader.WaveFormat))
{
// copy samples
resampledReader.CopyTo(waveWriter);
waveWriter.Flush();;
}
}
}
return(wavFileName);
}
public byte[] Decode(string audioType, byte[] input)
{
byte[] output = null;
_calls++;
lock (_decoderLock)
{
string fileType = "";
switch (audioType)
{
case "audio/mpg":
case "audio/mpeg":
fileType = "mp3";
break;
case "audio/aac":
case "audio/aacp":
fileType = "aac";
break;
}
try
{
string _inFile = PathUtils.GetTempFilePath(string.Format("opm-dec-in-{1}.{0}", fileType,
_calls % 10));
string _outFile = PathUtils.GetTempFilePath(string.Format("opm-dec-out.wav"));
DeleteFile(_outFile);
DeleteFile(_inFile);
IO.File.WriteAllBytes(_inFile, input);
WaveFormat wf = new WaveFormat(WaveFormatEx.Cdda.nSamplesPerSec, 2);
using (MediaFoundationReader mfr = new MediaFoundationReader(_inFile))
using (ResamplerDmoStream res = new ResamplerDmoStream(mfr, wf))
using (WaveFileWriter wav = new WaveFileWriter(_outFile, wf))
{
res.CopyTo(wav);
wav.Close();
res.Close();
mfr.Close();
}
if (IO.File.Exists(_outFile))
{
byte[] outWav = IO.File.ReadAllBytes(_outFile);
if (outWav.Length > 44)
{
output = new byte[outWav.Length];
Array.Copy(outWav, 44, output, 0, outWav.Length - 44);
}
}
}
catch (Exception ex)
{
Logger.LogException(ex);
}
}
return(output);
}