public static void LoadAudio(AudioStream audioStream)
{
// abort if audio data already loaded
if (audioStream.IsAudioLoaded())
{
return;
}
AudioDataHelper.LoadAudioData(audioStream);
var channel = Bass.BASS_StreamCreateFile(audioStream.AudioData.DataPointer,
0,
audioStream.AudioData.Data.Length,
BASSFlag.BASS_SAMPLE_FLOAT | BASSFlag.BASS_STREAM_DECODE | BASSFlag.BASS_STREAM_PRESCAN);
audioStream.AddChannel(channel);
if (audioStream.ChannelId == 0)
{
throw new Exception("Cannot load " + audioStream.Filename + ". Error code: " + Bass.BASS_ErrorGetCode());
}
// DebugHelper.WriteLine("Creating reverse FX stream " + audioStream.Description + "...");
audioStream.AddChannel(BassFx.BASS_FX_ReverseCreate(audioStream.ChannelId, 1, BASSFlag.BASS_STREAM_DECODE));
if (audioStream.ChannelId == 0)
{
throw new Exception("Cannot load " + audioStream.Filename + ". Error code: " + Bass.BASS_ErrorGetCode());
}
Bass.BASS_ChannelSetAttribute(audioStream.ChannelId, BASSAttribute.BASS_ATTRIB_REVERSE_DIR,
(float)BASSFXReverse.BASS_FX_RVS_FORWARD);
// DebugHelper.WriteLine("Creating tempo FX stream " + audioStream.Description + "...");
audioStream.AddChannel(BassFx.BASS_FX_TempoCreate(audioStream.ChannelId,
BASSFlag.BASS_FX_FREESOURCE | BASSFlag.BASS_STREAM_DECODE));
if (audioStream.ChannelId == 0)
{
throw new Exception("Cannot load " + audioStream.Filename + ". Error code: " + Bass.BASS_ErrorGetCode());
}
// DebugHelper.WriteLine("Calculating track length " + audioStream.Description + "...");
audioStream.Length = Bass.BASS_ChannelGetLength(audioStream.ChannelId);
audioStream.DefaultSampleRate = GetSampleRate(audioStream.ChannelId);
SetReplayGain(audioStream);
SetPosition(audioStream, 0);
}
/// <summary>
/// Unloads the audio of an audio stream
/// </summary>
/// <param name="audioStream">The audio stream.</param>
public static void UnloadAudio(AudioStream audioStream)
{
if (audioStream == null || !audioStream.IsAudioLoaded())
{
//throw new Exception("Audio file null or not audio not loaded");
return;
}
// DebugHelper.WriteLine($"UnloadAudio {audioStream.Description}...");
foreach (var channel in audioStream.ChannelIds)
{
Bass.BASS_StreamFree(channel);
}
audioStream.ChannelIds.Clear();
AudioDataHelper.UnloadAudioData(audioStream);
// DebugHelper.WriteLine("done");
}