public Song Process(LiveProject project, ILog logger)
{
this.logger = logger;
var song = new Song();
song.Tempo = (int)project.Tempo;
song.SampleRate = 44100;
var projectLoopEnd = project.LoopStart + project.LoopLength;
trackReceives = new Dictionary <LiveProject.Track, List <Receive> >();
foreach (var projectTrack in project.Tracks)
{
trackReceives.Add(projectTrack, new List <Receive>());
}
foreach (var projectTrack in project.Tracks)
{
foreach (var send in projectTrack.Sends)
{
if (send.IsActive)
{
trackReceives[send.ReceivingTrack].Add(new Receive(projectTrack, send.ReceivingChannelIndex - 1, send.Volume));
}
}
}
project.MasterTrack.Name = project.MasterTrack.Name == "" ? "Master" : project.MasterTrack.Name;
visitedTracks = new List <LiveProject.Track>();
orderedTracks = new List <LiveProject.Track>();
visitTrack(project.MasterTrack);
var projectTracksToSongTracks = new Dictionary <LiveProject.Track, Song.Track>();
var songTrackEvents = new Dictionary <Song.Track, List <Event> >();
double?minEventTime = null;
double?maxEventTime = null;
foreach (var projectTrack in orderedTracks)
{
var track = new Song.Track();
track.Name = projectTrack.Name;
track.Volume = (float)projectTrack.Volume;
foreach (var projectDevice in projectTrack.Devices)
{
Song.Device device = null;
Song.DeviceId deviceId;
if (Enum.TryParse <Song.DeviceId>(projectDevice.PluginDll.Replace(".dll", "").Replace(".64", ""), out deviceId))
{
device = new Song.Device();
device.Id = deviceId;
device.Chunk = projectDevice.RawData != null ? (byte[])projectDevice.RawData.Clone() : new byte[0];
}
if (device == null)
{
logger.WriteLine("WARNING: Device skipped (unsupported plugin): " + projectDevice.PluginDll);
}
else if (projectDevice.Bypass)
{
logger.WriteLine("WARNING: Device skipped (bypass enabled): " + projectDevice.PluginDll);
}
else
{
track.Devices.Add(device);
foreach (var floatParameter in projectDevice.FloatParameters)
{
if (floatParameter.Id >= 0)
{
var automation = new Song.Automation();
automation.DeviceIndex = track.Devices.IndexOf(device);
automation.ParamId = floatParameter.Id;
foreach (var e in floatParameter.Events)
{
if (e.Time >= 0.0)
{
var point = new Song.Point();
point.TimeStamp = secondsToSamples(e.Time, (double)song.Tempo, (double)song.SampleRate);
point.Value = e.Value;
automation.Points.Add(point);
}
}
if (automation.Points.Count > 0)
{
track.Automations.Add(automation);
}
}
}
}
}
var events = new List <Event>();
foreach (var midiClip in projectTrack.MidiClips)
{
if (!midiClip.IsDisabled)
{
var loopLength = midiClip.LoopEnd - midiClip.LoopStart;
for (var currentTime = midiClip.CurrentStart; currentTime < midiClip.CurrentEnd; currentTime += loopLength)
{
foreach (var keyTrack in midiClip.KeyTracks)
{
foreach (var note in keyTrack.Notes)
{
if (note.IsEnabled)
{
var startTime = note.Time - (currentTime - midiClip.CurrentStart) - midiClip.LoopStartRelative;
while (startTime < 0.0)
{
startTime += loopLength;
}
startTime = currentTime + startTime - midiClip.LoopStart;
var endTime = startTime + note.Duration;
if ((startTime >= midiClip.CurrentStart && startTime < midiClip.CurrentEnd) &&
(!project.IsLoopOn || (
startTime >= project.LoopStart && startTime < projectLoopEnd)))
{
endTime = Math.Min(endTime, midiClip.CurrentEnd);
if (project.IsLoopOn)
{
endTime = Math.Min(endTime, projectLoopEnd);
}
if (endTime > startTime)
{
var startEvent = new Event();
startEvent.Time = startTime;
startEvent.Type = Song.EventType.NoteOn;
startEvent.Note = (byte)keyTrack.MidiKey;
startEvent.Velocity = (byte)note.Velocity;
events.Add(startEvent);
var endEvent = new Event();
endEvent.Time = endTime;
endEvent.Type = Song.EventType.NoteOff;
endEvent.Note = (byte)keyTrack.MidiKey;
events.Add(endEvent);
}
}
}
}
}
}
}
}
events.Sort((a, b) =>
{
if (a.Time > b.Time)
{
return(1);
}
if (a.Time < b.Time)
{
return(-1);
}
if (a.Type == Song.EventType.NoteOn && b.Type == Song.EventType.NoteOff)
{
return(1);
}
if (a.Type == Song.EventType.NoteOff && b.Type == Song.EventType.NoteOn)
{
return(-1);
}
return(0);
});
foreach (var e in events)
{
if (!minEventTime.HasValue || e.Time < minEventTime.Value)
{
minEventTime = e.Time;
}
if (!maxEventTime.HasValue || e.Time > maxEventTime.Value)
{
maxEventTime = e.Time;
}
}
projectTracksToSongTracks.Add(projectTrack, track);
songTrackEvents.Add(track, events);
song.Tracks.Add(track);
}
double songStartTime, songEndTime;
if (project.IsLoopOn)
{
songStartTime = project.LoopStart;
songEndTime = projectLoopEnd;
}
else if (minEventTime.HasValue && maxEventTime.HasValue)
{
songStartTime = minEventTime.Value;
songEndTime = maxEventTime.Value;
}
else
{
throw new Exception("Couldn't find song start/end times");
}
song.Length = (songEndTime - songStartTime) * 60.0 / (double)song.Tempo;
foreach (var kvp in songTrackEvents)
{
var track = kvp.Key;
var events = kvp.Value;
int lastTimeStamp = 0;
foreach (var e in events)
{
var songEvent = new Song.Event();
var time = e.Time - songStartTime;
int timeStamp = Math.Max(secondsToSamples(time, (double)song.Tempo, (double)song.SampleRate), lastTimeStamp);
songEvent.TimeStamp = secondsToSamples(time, (double)song.Tempo, (double)song.SampleRate);
songEvent.Type = e.Type;
songEvent.Note = e.Note;
songEvent.Velocity = e.Velocity;
track.Events.Add(songEvent);
lastTimeStamp = timeStamp;
}
}
// TODO: Clip all of this instead of just offsetting
// adjust automation start times based on song start
foreach (var track in song.Tracks)
{
foreach (var automation in track.Automations)
{
foreach (var point in automation.Points)
{
point.TimeStamp -= secondsToSamples(songStartTime, (double)song.Tempo, (double)song.SampleRate);
}
}
}
foreach (var kvp in projectTracksToSongTracks)
{
foreach (var projectReceive in trackReceives[kvp.Key])
{
if (projectTracksToSongTracks.ContainsKey(projectReceive.SendingTrack))
{
var receive = new Song.Receive();
receive.SendingTrackIndex = song.Tracks.IndexOf(projectTracksToSongTracks[projectReceive.SendingTrack]);
receive.ReceivingChannelIndex = projectReceive.ReceivingChannelIndex;
receive.Volume = (float)projectReceive.Volume;
kvp.Value.Receives.Add(receive);
}
}
}
return(song);
}
public LiveProject Process(string fileName)
{
project = new LiveProject();
outputRoutingStrings = new Dictionary <LiveProject.Track, string>();
returnSendInfos = new Dictionary <LiveProject.Track, List <ReturnSendInfo> >();
using (var originalStream = new FileInfo(fileName).OpenRead())
{
using (var decompressionStream = new GZipStream(originalStream, CompressionMode.Decompress))
{
using (reader = XmlReader.Create(decompressionStream))
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Tracks":
while (reader.Read() && !(reader.NodeType == XmlNodeType.EndElement && reader.Name == "Tracks"))
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "MidiTrack":
case "AudioTrack":
case "GroupTrack":
parseTrack();
break;
case "ReturnTrack":
parseTrack(false, true);
break;
}
}
}
break;
case "MasterTrack":
parseTrack(true);
break;
case "Transport":
parseTransport();
break;
}
}
}
}
}
}
foreach (var kvp in outputRoutingStrings)
{
try
{
var routingString = kvp.Value;
switch (routingString)
{
case "AudioOut/None": break;
case "AudioOut/Master": kvp.Key.Sends.Add(new LiveProject.Send(project.MasterTrack, 1, 1.0, kvp.Key.IsSpeakerOn)); break;
default:
if (!routingString.StartsWith("AudioOut/"))
{
throw new Exception("routing string must begin with \"AudioOut/\"");
}
routingString = routingString.Replace("AudioOut/", "");
if (!routingString.StartsWith("Track.") && routingString != "GroupTrack")
{
throw new Exception("unrecognized routing string format");
}
string trackId = "";
string trackInputId = "";
if (routingString == "GroupTrack")
{
trackId = kvp.Key.TrackGroupId;
trackInputId = "";
}
else
{
routingString = routingString.Replace("Track.", "");
var parts = routingString.Split('/');
if (routingString != "GroupTrack" && parts.Length != 2)
{
throw new Exception("routing string has too many parts");
}
trackId = parts[0];
trackInputId = parts[1];
}
LiveProject.Track sendTarget = null;
int sendTargetChannelIndex = 1;
foreach (var track in project.Tracks)
{
if (track != kvp.Key && track.Id == trackId)
{
sendTarget = track;
break;
}
}
if (sendTarget == null)
{
throw new Exception("couldn't find target track");
}
if (routingString != "GroupTrack" && trackInputId != "TrackIn")
{
if (!trackInputId.StartsWith("DeviceIn."))
{
throw new Exception("unrecognized track input string");
}
trackInputId = trackInputId.Replace("DeviceIn.", "");
var parts = trackInputId.Split('.');
if (parts.Length != 2)
{
throw new Exception("unrecognized track device input string");
}
if (parts[1] != "S1")
{
throw new Exception("unrecognized track device input channel");
}
var deviceId = parts[0];
bool found = false;
foreach (var device in sendTarget.Devices)
{
if (device.Id == deviceId)
{
found = true;
break;
}
}
if (!found)
{
throw new Exception("couldn't find target track device");
}
sendTargetChannelIndex = 3;
}
kvp.Key.Sends.Add(new LiveProject.Send(sendTarget, sendTargetChannelIndex, 1.0, kvp.Key.IsSpeakerOn));
break;
}
}
catch (Exception e)
{
throw new Exception("Unrecognized AudioOutputRouting: " + kvp.Value + " (" + e.Message + ")");
}
}
foreach (var kvp in returnSendInfos)
{
foreach (var returnSendInfo in kvp.Value)
{
// Cull sends whose value is -inf
if (returnSendInfo.Volume > returnSendInfo.MinVolume)
{
kvp.Key.Sends.Add(new LiveProject.Send(project.ReturnTracks[kvp.Value.IndexOf(returnSendInfo)], 1, returnSendInfo.Volume, returnSendInfo.IsActive));
}
}
}
return(project);
}
