public Object Generate(System.IO.Stream audioms, ConditionVariables effects, bool ensureaudio)
{
try
{
audioms.Position = 0;
IWaveSource s = new CSCore.Codecs.WAV.WaveFileReader(audioms);
if (ensureaudio)
{
s = s.AppendSource(x => new ExtendWaveSource(x, 100)); // SEEMS to help the click at end..
}
ApplyEffects(ref s, effects);
return(s);
}
catch
{
if (ensureaudio)
{
return(new NullWaveSource(5));
}
else
{
return(null);
}
}
}
// FROM audio stream
public AudioData Generate(System.IO.Stream audioms, SoundEffectSettings effects, bool ensureaudio)
{
try
{
audioms.Position = 0;
IWaveSource s;
if (audioms.Length == 0)
{
if (ensureaudio)
{
s = new NullWaveSource(50);
}
else
{
return(null);
}
}
else
{
s = new CSCore.Codecs.WAV.WaveFileReader(audioms);
//System.Diagnostics.Debug.WriteLine("oRIGINAL length " + s.Length);
if (ensureaudio)
{
s = s.AppendSource(x => new ExtendWaveSource(x, 100)); // SEEMS to help the click at end..
}
}
//System.Diagnostics.Debug.WriteLine("Sample length " + s.Length);
System.Diagnostics.Debug.Assert(s != null);
ApplyEffects(ref s, effects);
//System.Diagnostics.Debug.WriteLine(".. to length " + s.Length);
System.Diagnostics.Debug.Assert(s != null);
return(new AudioData(s));
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Exception " + ex.Message);
if (ensureaudio)
{
IWaveSource s = new NullWaveSource(100);
System.Diagnostics.Debug.Assert(s != null);
return(new AudioData(s));
}
else
{
return(null);
}
}
}
private void ReplaceSlideAudioAnnotationForRelationship(PresentationDocument presentationDocument, string slideRelationshipId, byte[] audioFile)
{
var presentationPart = presentationDocument.PresentationPart;
SlidePart slidePart = (SlidePart)presentationPart.GetPartById(slideRelationshipId);
MediaDataPart mediaPart = (MediaDataPart)slidePart.DataPartReferenceRelationships
.FirstOrDefault(dpr => (dpr.DataPart?.ContentType == "audio/x-wav" || dpr.DataPart?.ContentType == "audio/mp4") &&
dpr.RelationshipType.EndsWith("/relationships/media"))?.DataPart;
if (mediaPart != null)
{
this._logger.Verbose($"Replacing contents of '{mediaPart.Uri}' media part.");
byte[] encodedAAC = new byte[0];
if (mediaPart.ContentType == "audio/mp4")
{
this._logger.Verbose("Converting replacement audio from Wav to Mp4 AAC.");
encodedAAC = _audioEncoder.FromWav(audioFile);
}
using (var mpStream = mediaPart.GetStream())
using (var writer = new BinaryWriter(mpStream))
{
if (encodedAAC.LongLength > 0)
{
writer.Write(encodedAAC);
}
else
{
writer.Write(audioFile);
}
}
this._logger.Verbose("Updating slide duration to match new audio.");
using (var memStream = new MemoryStream(audioFile))
using (IWaveSource wavSource = new CSCore.Codecs.WAV.WaveFileReader(memStream))
{
TimeSpan totalTime = wavSource.GetLength();
this._logger.Verbose($"New audio length: {totalTime.TotalMilliseconds}ms.");
UpdateSlideAdvanceAfterTime(slidePart, totalTime.TotalMilliseconds);
}
}
else
{
this._logger.Warning("Current slide has no media in it.");
this._logger.Verbose("Could not find any parts with '/relationships/media' type and 'audio/x-wav' or 'audio/mp4' content types.");
}
}
/// <summary>
/// Plays the WAVE file data contained in the given MemoryStream using the CSCore library.
/// </summary>
/// <param name="memoryStream">The MemoryStream containing the WAVE file data.</param>
public void PlayWithCSCore(MemoryStream memoryStream)
{
using (IWaveSource soundSource = new WaveFileReader(memoryStream))
{
//SoundOut implementation which plays the sound
// WaveOut works. DirectSoundOut works. WasapiOut works.
using (ISoundOut soundOut = new CSCore.SoundOut.WasapiOut())
{
//Tell the SoundOut which sound it has to play
soundOut.Initialize(soundSource);
//Play the sound
soundOut.Play();
while ((soundOut.PlaybackState == CSCore.SoundOut.PlaybackState.Playing) && (soundNumPlaying >= 0))
{
Thread.Sleep(10);
}
//Stop the playback
soundOut.Stop();
}
}
}
