public void UploadPiece(string key, int order, Stream stream)
{
var name = Guid.NewGuid() + ".m4a";
string filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, ConfigurationManager.AppSettings["PiecesPath"], name);
if (!Directory.Exists(Directory.GetParent(filePath).FullName))
{
Directory.GetParent(filePath).Create();
}
using (var fileStream = File.Create(filePath))
{
stream.CopyTo(fileStream);
}
var time = DateTime.Now;
var piece = new AudioPiece();
piece.ExpirationTime = time.AddDays(3);
piece.Key = key;
piece.Order = order;
piece.PhysicalFileName = filePath;
piece.UploadTime = time;
using (var context = new InnostarModelsContext())
{
var repository = new AudioPieceRepository(context);
repository._Insert(piece);
repository._Save();
}
}
public void ConcatenatePieces(string key, int piecesCount)
{
using (var context = new InnostarModelsContext())
{
string filePath = Path.Combine(
AppDomain.CurrentDomain.BaseDirectory,
ConfigurationManager.AppSettings["AudioFilesPath"],
string.Format("{0}.m4a", key));
if (File.Exists(filePath))
{
File.Delete(filePath);
}
var repository = new AudioPieceRepository(context);
var paths = repository.GetPiecePaths(key);
var sourceFiles = paths as IList <string> ?? paths.ToList();
if (!sourceFiles.Any() || (piecesCount > 0 && sourceFiles.Count() != piecesCount))
{
throw new ArgumentException("some pieces are lost");
}
if (!Directory.Exists(Directory.GetParent(filePath).FullName))
{
Directory.GetParent(filePath).Create();
}
string fileListPath = Path.Combine(
AppDomain.CurrentDomain.BaseDirectory,
ConfigurationManager.AppSettings["PiecesPath"],
string.Format("{0}.txt", key));
if (File.Exists(fileListPath))
{
File.Delete(fileListPath);
}
using (var writer = File.AppendText(fileListPath))
{
sourceFiles.ForEach(e => writer.WriteLine(@"file '{0}'", e));
}
FfmpegConcatenator.Concatenate(ConfigurationManager.AppSettings["FfmpegUtilityPath"], fileListPath, filePath);
File.Delete(fileListPath);
if (!File.Exists(filePath))
{
throw new ArgumentException("file isn't concatenated");
}
}
}
