internal static bool Skip(SpeechSession session, int desyncMilliseconds, out int deltaSamples, out int deltaDesyncMilliseconds)
{
//We're too far behind where we ought to be to resync with speed adjustment. Skip ahead to where we should be.
if (desyncMilliseconds > ResetDesync.TotalMilliseconds)
{
Log.Warn("Playback desync ({0}ms) beyond recoverable threshold; resetting stream to current time", desyncMilliseconds);
deltaSamples = desyncMilliseconds * session.OutputWaveFormat.SampleRate / 1000;
deltaDesyncMilliseconds = -desyncMilliseconds;
// skip through the session the required number of samples
// we allocate here, but we are already in an error case rather than normal operation
return(session.Read(new ArraySegment <float>(new float[deltaSamples])));
}
//We're too far ahead of where we ought to be to resync with speed adjustment. Insert silent frames to resync
if (desyncMilliseconds < -ResetDesync.TotalMilliseconds)
{
Log.Error("Playback desync ({0}ms) AHEAD beyond recoverable threshold", desyncMilliseconds);
}
deltaSamples = 0;
deltaDesyncMilliseconds = 0;
return(false);
}
public void Play(SpeechSession session)
{
if (Session != null)
{
throw Log.CreatePossibleBugException("Attempted to play a session when one is already playing", "C4F19272-994D-4025-AAEF-37BB62685C2E");
}
Log.Debug("Began playback of speech session. id={0}", session.Context.Id);
if (DebugSettings.Instance.EnablePlaybackDiagnostics && DebugSettings.Instance.RecordFinalAudio)
{
var filename = string.Format("Dissonance_Diagnostics/Output_{0}_{1}_{2}", session.Context.PlayerName, session.Context.Id, DateTime.UtcNow.ToFileTime());
Interlocked.Exchange(ref _diagnosticOutput, new AudioFileWriter(filename, session.OutputWaveFormat));
}
_sessionLock.EnterWriteLock();
try
{
ApplyReset();
Session = session;
}
finally
{
_sessionLock.ExitWriteLock();
}
}
internal static bool Filter(SpeechSession session, [NotNull] float[] output, int channels, [NotNull] float[] temp, [CanBeNull] AudioFileWriter diagnosticOutput, out float arv)
{
//Read out data from source (exactly as much as we need for one channel)
var samplesRequired = output.Length / channels;
var complete = session.Read(new ArraySegment <float>(temp, 0, samplesRequired));
//Write the audio we're about to play to the diagnostics writer (on disk)
if (diagnosticOutput != null)
{
diagnosticOutput.WriteSamples(new ArraySegment <float>(temp, 0, samplesRequired));
}
//Step through samples, stretching them (i.e. play mono input in all output channels)
float accumulator = 0;
var sampleIndex = 0;
for (var i = 0; i < output.Length; i += channels)
{
//Get a single sample from the source data
var sample = temp[sampleIndex++];
//Accumulate the sum of the audio signal
accumulator += Mathf.Abs(sample);
//Copy data into all channels
for (var c = 0; c < channels; c++)
{
output[i + c] *= sample;
}
}
arv = accumulator / output.Length;
return(complete);
}
/// <summary>
/// Starts a new speech session and adds it to the queue for playback
/// </summary>
/// <param name="format">The frame format.</param>
/// <param name="now">Current time, or null for DateTime.UtcNow</param>
/// <param name="jitter">Jitter estimator, or null for this stream to estimate it's own jitter</param>
public void StartSession(FrameFormat format, DateTime?now = null, [CanBeNull] IJitterEstimator jitter = null)
{
if (PlayerName == null)
{
throw Log.CreatePossibleBugException("Attempted to `StartSession` but `PlayerName` is null", "0C0F3731-8D6B-43F6-87C1-33CEC7A26804");
}
_active = GetOrCreateDecoderPipeline(format, _volumeProvider);
var session = SpeechSession.Create(new SessionContext(PlayerName, unchecked (_currentId++)), jitter ?? this, _active, _active, now ?? DateTime.UtcNow);
_awaitingActivation.Enqueue(session);
Log.Debug("Created new speech session with buffer time of {0}ms", session.Delay.TotalMilliseconds);
}
internal static bool Filter(SpeechSession session, float[] data, int channels, float[] temp, [CanBeNull] AudioFileWriter diagnosticOutput, out float arv, out int samplesRead, bool multiply)
{
//Read out data from source (exactly as much as we need for one channel)
var samplesRequired = data.Length / channels;
var complete = session.Read(new ArraySegment <float>(temp, 0, samplesRequired));
if (diagnosticOutput != null)
{
diagnosticOutput.WriteSamples(new ArraySegment <float>(temp, 0, samplesRequired));
}
float accumulator = 0;
//Step through samples, stretching them (i.e. play mono input in all output channels)
var sampleIndex = 0;
for (var i = 0; i < data.Length; i += channels)
{
//Get a single sample from the source data
var sample = temp[sampleIndex++];
//Accumulate the sum of the audio signal
accumulator += Mathf.Abs(sample);
//Copy data into all channels
for (var c = 0; c < channels; c++)
{
if (multiply)
{
data[i + c] *= sample;
}
else
{
data[i + c] = sample;
}
}
}
arv = accumulator / data.Length;
samplesRead = samplesRequired;
return(complete);
}
internal static bool Skip(SpeechSession session, int desyncMilliseconds, out int deltaSamples, out int deltaDesyncMilliseconds)
{
//If we're really far out of sync just skip forward the playback
if (desyncMilliseconds > ResetDesync.TotalMilliseconds)
{
Log.Warn("Playback desync ({0}ms) beyond recoverable threshold; resetting stream to current time", desyncMilliseconds);
deltaSamples = desyncMilliseconds * session.OutputWaveFormat.SampleRate / 1000;
deltaDesyncMilliseconds = -desyncMilliseconds;
// skip through the session the required number of samples
// we allocate here, but we are already in an error case rather than normal operation
return(session.Read(new ArraySegment <float>(new float[deltaSamples])));
}
deltaSamples = 0;
deltaDesyncMilliseconds = 0;
return(false);
}
internal static bool Skip(SpeechSession session, int desyncMilliseconds, out int deltaSamples, out int deltaDesyncMilliseconds)
{
//We're too far behind where we ought to be to resync with speed adjustment. Skip ahead to where we should be.
if (desyncMilliseconds > ResetDesync.TotalMilliseconds)
{
Log.Warn("Playback desync ({0}ms) beyond recoverable threshold; resetting stream to current time", desyncMilliseconds);
deltaSamples = desyncMilliseconds * session.OutputWaveFormat.SampleRate / 1000;
deltaDesyncMilliseconds = -desyncMilliseconds;
//Read out a load of data and discard it, forcing ourselves back into sync
//If reading completes the session exit out.
var toRead = deltaSamples;
while (toRead > 0)
{
var count = Math.Min(toRead, DesyncFixBuffer.Length);
if (session.Read(new ArraySegment <float>(DesyncFixBuffer, 0, count)))
{
return(true);
}
toRead -= count;
}
//We completed all the reads so obviously none of the reads finished the session
return(false);
}
//We're too far ahead of where we ought to be to resync with speed adjustment. Insert silent frames to resync
if (desyncMilliseconds < -ResetDesync.TotalMilliseconds)
{
Log.Error("Playback desync ({0}ms) AHEAD beyond recoverable threshold", desyncMilliseconds);
}
deltaSamples = 0;
deltaDesyncMilliseconds = 0;
return(false);
}