public override bool Wrap(IBassStreamProvider provider, int channelHandle, IEnumerable <IBassStreamAdvice> advice, BassFlags flags, out IBassStream stream)
{
var offset = default(long);
var length = default(long);
if (this.Offset != TimeSpan.Zero)
{
offset = Bass.ChannelSeconds2Bytes(channelHandle, this.Offset.TotalSeconds);
}
if (this.Length != TimeSpan.Zero)
{
length = Bass.ChannelSeconds2Bytes(channelHandle, this.Length.TotalSeconds);
}
if (offset != 0 || length != 0)
{
if (length == 0)
{
length = Bass.ChannelGetLength(channelHandle, PositionFlags.Bytes) - offset;
}
stream = new BassStream(
provider,
BassSubstream.CreateStream(channelHandle, offset, length, flags),
length,
advice,
flags
);
return(true);
}
stream = null;
return(false);
}
public async Task <IBassStream> CreateStream(PlaylistItem playlistItem, bool immidiate, BassFlags flags)
{
#if NET40
this.Semaphore.Wait();
#else
await this.Semaphore.WaitAsync().ConfigureAwait(false);
#endif
try
{
foreach (var provider in this.Providers.Values)
{
if (!provider.CanCreateStream(playlistItem))
{
continue;
}
var channelHandle = await provider.CreateStream(playlistItem, flags).ConfigureAwait(false);
if (channelHandle != 0)
{
return(new BassStream(provider, channelHandle));
}
else
{
return(BassStream.Error(Bass.LastError));
}
}
}
finally
{
this.Semaphore.Release();
}
return(BassStream.Empty);
}
protected virtual IBassStream CreateBasicStream(int channelHandle, IEnumerable <IBassStreamAdvice> advice, BassFlags flags)
{
if (channelHandle == 0)
{
Logger.Write(this, LogLevel.Debug, "Failed to create stream: {0}", Enum.GetName(typeof(Errors), Bass.LastError));
return(BassStream.Error(Bass.LastError));
}
var stream = default(IBassStream);
foreach (var advisory in advice)
{
if (advisory.Wrap(this, channelHandle, advice, flags, out stream))
{
break;
}
}
if (stream == null)
{
stream = new BassStream(this, channelHandle, Bass.ChannelGetLength(channelHandle, PositionFlags.Bytes), advice, flags);
}
return(stream);
}
