public IEnumerable <string> Dump(Song song, Action <double> onProgress)
{
var args = new StringBuilder($"\"{song.Filename}\" {song.Index}");
AddArgIfSupported(args, "sampling_rate", _samplingRate);
AddArgIfSupported(args, "fade_length", _fadeMs);
AddArgIfSupported(args, "loop_count", _loopCount);
AddArgIfSupported(args, "gap_length", _gapMs);
if (song.ForceLength > TimeSpan.Zero)
{
AddArgIfSupported(args, "play_length", (long)song.ForceLength.TotalMilliseconds);
}
_processWrapper = new ProcessWrapper(
_multiDumperPath,
args.ToString());
var progressParts = Enumerable.Repeat(0.0, song.Channels.Count).ToList();
var r = new Regex(@"(?<channel>\d+)\|(?<position>\d+)\|(?<total>\d+)");
var stopwatch = Stopwatch.StartNew();
foreach (var match in _processWrapper.Lines().Select(l => r.Match(l)).Where(m => m.Success))
{
var channel = Convert.ToInt32(match.Groups["channel"].Value);
if (channel < 0 || channel > song.Channels.Count)
{
continue;
}
var position = Convert.ToDouble(match.Groups["position"].Value);
var total = Convert.ToDouble(match.Groups["total"].Value);
progressParts[channel] = position / total;
if (stopwatch.Elapsed.TotalMilliseconds > 100)
{
// Update the progress every 100ms
onProgress?.Invoke(progressParts.Average());
stopwatch.Restart();
}
}
_processWrapper.Dispose();
_processWrapper = null;
onProgress?.Invoke(1.0);
var baseName = Path.Combine(
Path.GetDirectoryName(song.Filename) ?? "",
Path.GetFileNameWithoutExtension(song.Filename));
return(song.Channels.Select(channel => $"{baseName} - {channel}.wav"));
}
private string GetOutputText(string args, bool includeStdErr)
{
using (var p = new ProcessWrapper(
_multiDumperPath,
args,
includeStdErr))
{
string text = string.Join("", p.Lines());
// Try to decode any UTF-8 in there
try
{
text = Encoding.UTF8.GetString(Encoding.Default.GetBytes(text));
}
catch (Exception)
{
// Ignore it, use unfixed string
}
return(text);
}
}
public IEnumerable <string> Dump(Song song, Action <double> onProgress)
{
_processWrapper = new ProcessWrapper(
_multiDumperPath,
$"\"{song.Filename}\" {song.Index}");
var progressParts = Enumerable.Repeat(0.0, song.Channels.Count).ToList();
var r = new Regex(@"(?<channel>\d+)\|(?<position>\d+)\|(?<total>\d+)");
var stopwatch = Stopwatch.StartNew();
foreach (var match in _processWrapper.Lines().Select(l => r.Match(l)).Where(m => m.Success))
{
var channel = Convert.ToInt32(match.Groups["channel"].Value);
if (channel < 0 || channel > song.Channels.Count)
{
continue;
}
var position = Convert.ToDouble(match.Groups["position"].Value);
var total = Convert.ToDouble(match.Groups["total"].Value);
progressParts[channel] = position / total;
if (stopwatch.Elapsed.TotalMilliseconds > 100)
{
// Update the progress every 100ms
onProgress?.Invoke(progressParts.Average());
stopwatch.Restart();
}
}
_processWrapper.Dispose();
_processWrapper = null;
onProgress?.Invoke(1.0);
var baseName = Path.Combine(
Path.GetDirectoryName(song.Filename),
Path.GetFileNameWithoutExtension(song.Filename));
return(song.Channels.Select(channel => $"{baseName} - {channel}.wav"));
}
public IEnumerable <Song> GetSongs(string filename)
{
filename = Path.GetFullPath(filename);
if (!File.Exists(filename))
{
throw new FileNotFoundException("Cannot find VGM file", filename);
}
string json;
using (var p = new ProcessWrapper(
_multiDumperPath,
$"\"{filename}\" --json"))
{
json = string.Join("", p.Lines());
}
if (string.IsNullOrEmpty(json))
{
throw new Exception("Failed to get song data from MultiDumper");
}
// Extract metadata
// Example result:
// {
// "channels":[
// "SEGA PSG #0","SEGA PSG #1","SEGA PSG #2","SEGA PSG #3",
// "YM2413 #0","YM2413 #1","YM2413 #2","YM2413 #3","YM2413 #4","YM2413 #5","YM2413 #6",
// "YM2413 #7","YM2413 #8","YM2413 #9","YM2413 #10","YM2413 #11","YM2413 #12","YM2413 #13"],
// "containerinfo":
// {
// "copyright":"1988/08/14",
// "dumper":"sherpa",
// "game":"Golvellius - Valley of Doom",
// "system":"Sega Master System"
// },
// "songs":[
// {
// "author":"Masatomo Miyamoto, Takeshi Santo, Shin-kun, Pazu",
// "comment":"",
// "name":"Title Screen"
// }],
// "subsongCount":1
// }
dynamic metadata = JsonConvert.DeserializeObject(json);
var channels = metadata.channels.ToObject <List <string> >();
var songs = (JArray)metadata.songs;
var i = 0;
// This helps us reject any junk strings MultiDumper gives us for empty tags
string Clean(string s) => string.IsNullOrEmpty(s) || s.Any(char.IsControl) ? string.Empty : s;
return(songs.Cast <dynamic>().Select(s => new Song
{
Filename = filename,
Index = i++,
Name = Clean(s.name),
Author = Clean(s.author),
Channels = channels,
Comment = Clean(s.comment),
Copyright = Clean(metadata.containerinfo.copyright),
Dumper = Clean(metadata.containerinfo.dumper),
Game = Clean(metadata.containerinfo.game),
System = Clean(metadata.containerinfo.system)
}));
}