static void ReadWriteAudio(string input, string output)
{
var audio = new AudioReader(input);
audio.LoadMetadata().Wait();
audio.Load();
using (var writer = new AudioWriter(output, audio.Metadata.Channels, audio.Metadata.SampleRate))
{
writer.OpenWrite(true);
var frame = new AudioFrame(1, audio.Metadata.Channels);
while (true)
{
// read next sample
var f = audio.NextFrame(frame);
if (f == null)
{
break;
}
writer.WriteFrame(frame);
}
}
}
public async Task LoadMetadataOgg()
{
var audio = new AudioReader(Res.GetPath(Res.Audio_Ogg));
await audio.LoadMetadata();
Assert.True(audio.Metadata.Codec == "vorbis");
Assert.True(audio.Metadata.BitRate == 48000);
Assert.True(audio.Metadata.SampleFormat == "fltp");
Assert.True(audio.Metadata.SampleRate == 11025);
Assert.True(audio.Metadata.Channels == 2);
Assert.True(audio.Metadata.Streams.Length == 1);
Assert.True(Math.Abs(audio.Metadata.Duration - 1.515102) < 0.01);
}
public async Task LoadMetadataMp3()
{
var audio = new AudioReader(Res.GetPath(Res.Audio_Mp3));
await audio.LoadMetadata();
Assert.True(audio.Metadata.Codec == "mp3");
Assert.True(audio.Metadata.BitRate == 128000);
Assert.True(audio.Metadata.SampleFormat == "fltp");
Assert.True(audio.Metadata.SampleRate == 44100);
Assert.True(audio.Metadata.Channels == 2);
Assert.True(audio.Metadata.Streams.Length == 1);
Assert.True(Math.Abs(audio.Metadata.Duration - 1.549187) < 0.01);
}
static void ReadPlayAudio(string input, string output)
{
var audio = new AudioReader(input);
audio.LoadMetadata().Wait();
audio.Load();
using (var player = new AudioPlayer())
{
player.OpenWrite(audio.Metadata.SampleRate, audio.Metadata.Channels, showWindow: false);
// For simple playing, can just use "CopyTo"
// audio.CopyTo(player);
var frame = new AudioFrame(audio.Metadata.Channels);
while (true)
{
// read next frame
var f = audio.NextFrame(frame);
if (f == null)
{
break;
}
try
{
player.WriteFrame(frame);
}
catch (IOException) { break; }
catch
{
throw;
}
}
}
}
