/**
* Play the given stream with given id
* @param id of the stream
* @param stream the generated tts
* @param async boolean true/false
* @param format int FORMAT_WAV or FORMAT_MP3
*/
public void PlayWAV(String id, Stream stream, bool async)
{
var state = new SpeakerState(id, speakerTimeout);
SpeakerStates[id] = state;
PlayWAV(stream, async, state);
}
private void Play(WaveStream stream, bool async, SpeakerState state)
{
if (async)
{
Task.Factory.StartNew(() => Play(stream, state));
return;
}
Play(stream, state);
}
private void PlayWAV(Stream stream, bool async, SpeakerState state)
{
var memory = new MemoryStream();
stream.Position = 0;
stream.CopyTo(memory);
memory.Position = 0;
var wav = WaveFormatConversionStream.CreatePcmStream(new WaveFileReader(memory));
Play(wav, async, state);
}
private void Play(WaveStream stream, SpeakerState state)
{
// Stop all stream from playing for 1s
if (DateTime.Now - StopTimeout < TimeSpan.FromMilliseconds(1000))
{
Log("Stop next speech");
state.playing = false;
stream.Dispose();
return;
}
state.start = DateTime.Now;
using (WaveChannel32 volume = new WaveChannel32(stream)) {
try {
volume.Volume = speakerVol / 100f;
// Blank dummy Audio
float delay = speakerDelay / 1000f;
if (delay > 0)
{
OffsetSampleProvider osp = new OffsetSampleProvider(volume.ToSampleProvider());
osp.DelayBySamples = (int)(osp.WaveFormat.SampleRate * delay) * osp.WaveFormat.Channels;
waveOut.Init(osp);
}
else
{
waveOut.Init(volume);
}
waveOut.Play();
while (stream.CurrentTime < stream.TotalTime && (DateTime.Now - state.start) < state.timeout)
{
Thread.Sleep(500);
}
waveOut.Stop();
state.playing = false;
}
catch (Exception ex) { Log("Error while using WaveOut: " + ex.Message); }
}
stream.Dispose();
}
/**
* Play the given file path
* @param path the file to play
* @param async boolean true/false
*/
public void Play(String path, bool async)
{
var id = path;
if (!File.Exists(path))
{
return;
}
int format = path.ToLower().EndsWith(".wav") || path.ToLower().EndsWith(".wma") ? FORMAT_WAV : FORMAT_MP3;
if (format == FORMAT_WAV)
{
using (var stream = new FileStream(path, FileMode.Open)) {
PlayWAV(id, stream, async);
}
}
else
{
var stream = (WaveStream) new Mp3FileReader(path);
SpeakerStates[id] = new SpeakerState(id, speakerTimeout);
Play(stream, SpeakerStates[id]);
}
}
