internal BassTrack(int channelHandle, int mixerHandle, string file)
{
this.channelHandle = channelHandle;
this.mixerHandle = mixerHandle;
var trackLength = Bassh.BASS_ChannelGetLength(channelHandle, BASSMode.BASS_POS_BYTES);
length = TimeSpan.FromSeconds(Bassh.BASS_ChannelBytes2Seconds(channelHandle, trackLength));
var channelInfo = Bassh.BASS_ChannelGetInfo(channelHandle);
sampleRate = channelInfo.freq;
name = file;
}
/// <summary>
/// Creates the channel.
/// </summary>
/// <param name="file">The file.</param>
/// <returns></returns>
public ITrack CreateChannel(string file)
{
var channelHandle = Bassh.BASS_StreamCreateFile(file, 0, 0, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE);
Bassh.BASS_ChannelSetAttribute(channelHandle, BASSAttribute.BASS_ATTRIB_SRC, 2);
Debug.WriteLine(Bassh.BASS_ChannelGetInfo(channelHandle));
if (0 == channelHandle)
{
throw new InvalidOperationException("Unable to create stream");
}
if (!BassMix.BASS_Mixer_StreamAddChannel(mixerHandle, channelHandle, BASSFlag.BASS_MIXER_PAUSE | BASSFlag.BASS_MIXER_BUFFER | BASSFlag.BASS_MIXER_NORAMPIN))
{
Trace.WriteLine(Bassh.BASS_ErrorGetCode());
throw new InvalidOperationException("Unable to add channel to mixer.");
}
return(new BassTrack(channelHandle, mixerHandle, file));
}
private void Setup()
{
if (!Bassh.BASS_Init(-1, sampleRate.Value, BASSInit.BASS_DEVICE_LATENCY | BASSInit.BASS_DEVICE_FREQ, IntPtr.Zero))
{
throw new InvalidOperationException("Could not initialize BASS");
}
Bassh.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATETHREADS, 4);
Bassh.BASS_SetConfig(BASSConfig.BASS_CONFIG_BUFFER, bufferSize.Value);
Bassh.BASS_SetConfig(BASSConfig.BASS_CONFIG_UPDATEPERIOD, bufferSize.Value / 10);
Trace.WriteLine(Bassh.BASS_GetInfo());
var plugins = Bassh.BASS_PluginLoadDirectory(Environment.CurrentDirectory);
mixerHandle = BassMix.BASS_Mixer_StreamCreate(sampleRate.Value, 2, BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_MIXER_NONSTOP);
Bassh.BASS_ChannelPlay(mixerHandle, true);
if (null == plugins)
{
return;
}
foreach (var plugin in plugins)
{
pluginHandles.Add(plugin.Key);
logger.Log(LoggingType.Information, this, string.Format("Plugin Loaded: {0}", plugin.Value));
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
BassMix.BASS_Mixer_ChannelRemove(channelHandle);
Bassh.BASS_StreamFree(channelHandle);
}
/// <summary>
/// Seeks to the specified offset (In milliseconds).
/// </summary>
/// <param name="offset">The offset.</param>
public void Seek(double offset)
{
var byteOffset = Bassh.BASS_ChannelSeconds2Bytes(channelHandle, offset / 1000d);
BassMix.BASS_Mixer_ChannelSetPosition(channelHandle, byteOffset, BASSMode.BASS_POS_BYTES);
}