aurora/Aurora/RemoteImpl/RemotePlaybackImpl.cs

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2.1 KiB
C#
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using System;
using System.Threading.Tasks;
using Aurora.Proto.Playback;
using Aurora.Proto.General;
using Aurora.Models.Media;
using Aurora.Services.Library;
using Autofac;
namespace Aurora.RemoteImpl
{
public class RemotePlaybackServiceImpl : RemotePlaybackService.RemotePlaybackServiceBase
{
public override async Task GetSongStream(SongRequest request,
Grpc.Core.IServerStreamWriter<Chunk> responseStream,
Grpc.Core.ServerCallContext context)
{
using (var scope = App.Container.BeginLifetimeScope())
{
ILibraryService library = scope.Resolve<ILibraryService>();
BaseMedia originalSong = library.GetSong(request.Id);
if (!(originalSong is LocalAudio))
{
return;
}
//Copy media object to not interfere with other threads
LocalAudio songCopy = new LocalAudio((LocalAudio)originalSong);
try
{
//Load only if not already loaded. (Multiple clients may be requesting media)
if (!songCopy.IsLoaded)
{
await songCopy.Load();
}
//Send stream
Console.WriteLine("Begin sending file");
byte[] buffer = new byte[2048]; // read in chunks of 2KB
int bytesRead;
while ((bytesRead = songCopy.DataStream.Read(buffer, 0, buffer.Length)) > 0)
{
Google.Protobuf.ByteString bufferByteString = Google.Protobuf.ByteString.CopyFrom(buffer);
await responseStream.WriteAsync(new Chunk { Content = bufferByteString });
}
Console.WriteLine("Done sending file");
}
catch (Exception ex)
{
Console.WriteLine("Exception caught while sending audio file: " + ex.Message);
}
}
}
}
}