private void StartProcess()
{
var startinfo = new System.Diagnostics.ProcessStartInfo();
var cmd = this.Description.CommandLine;
var args =
System.Text.RegularExpressions.Regex.Matches(cmd, @"(?:""[^""]+?"")|(?:\S+)")
.Cast <System.Text.RegularExpressions.Match>()
.Select(match => match.ToString())
.ToArray();
startinfo.WorkingDirectory = this.Description.BasePath;
startinfo.UseShellExecute = false;
startinfo.FileName = args.First();
startinfo.Arguments = String.Join(" ", args.Skip(1));
startinfo.CreateNoWindow = true;
startinfo.ErrorDialog = false;
startinfo.RedirectStandardInput = true;
startinfo.RedirectStandardOutput = true;
startinfo.RedirectStandardError = true;
startinfo.StandardOutputEncoding = System.Text.Encoding.ASCII;
startinfo.StandardErrorEncoding = System.Text.Encoding.Default;
processCancellationToken = new CancellationTokenSource();
var cancel = processCancellationToken.Token;
process = System.Diagnostics.Process.Start(startinfo);
pipePackets = new WaitableQueue <byte[]>();
var stdout = process.StandardOutput.BaseStream;
var stdin = process.StandardInput.BaseStream;
var stderr = process.StandardError;
stdErrorTask = Task.Run(async() => {
try {
Logger logger = new Logger(typeof(CustomFilterContentSink), this.Description.Name);
while (!cancel.IsCancellationRequested)
{
var line = await stderr.ReadLineAsync().ConfigureAwait(false);
if (line == null)
{
break;
}
if (Description.Logging)
{
logger.Debug(line);
}
}
stderr.Close();
}
catch (System.IO.IOException) {
}
catch (ObjectDisposedException) {
}
});
stdOutTask = Task.Run(async() => {
try {
long pos = 0;
var buffer = new byte[1024 * 15];
while (!cancel.IsCancellationRequested)
{
var len = await stdout.ReadAsync(buffer, 0, buffer.Length, cancel).ConfigureAwait(false);
System.Console.WriteLine("stdout {0}", len);
if (len <= 0)
{
break;
}
Sink.OnContent(new Content(lastContent.Stream, lastContent.Timestamp, pos, buffer, 0, len));
pos += len;
}
stdout.Close();
}
catch (System.IO.IOException) {
}
catch (ObjectDisposedException) {
}
finally {
System.Console.WriteLine("stdoutclosed");
}
});
writable = true;
stdInTask = Task.Run(async() => {
try {
while (!cancel.IsCancellationRequested)
{
var packet = await pipePackets.DequeueAsync(cancel).ConfigureAwait(false);
if (packet != null)
{
await stdin.WriteAsync(packet, 0, packet.Length, cancel).ConfigureAwait(false);
if (pipePackets.IsEmpty)
{
await stdin.FlushAsync().ConfigureAwait(false);
}
}
else
{
stdin.Close();
break;
}
}
}
catch (System.IO.IOException) {
}
catch (ObjectDisposedException) {
}
finally {
writable = false;
System.Console.WriteLine("stdinclosed");
}
//TODO:子プロセスが死んだ時に上流か下流かに伝える必要がある
});
}
public Task <ChannelMessage> DequeueAsync(CancellationToken ct)
{
return(queue.DequeueAsync(ct));
}
private async Task ProcessMessagesAsync(IContentSink targetSink, CancellationToken cancellationToken)
{
var bufferStream = new MemoryStream();
var context = new FLVToMPEG2TS.Context(bufferStream);
var contentBuffer = new MemoryStream();
var fileParser = new FLVFileParser();
var msg = await msgQueue.DequeueAsync(cancellationToken).ConfigureAwait(false);
while (msg.Type != ContentMessage.MessageType.Stop)
{
switch (msg.Type)
{
case ContentMessage.MessageType.ChannelInfo:
targetSink.OnChannelInfo(msg.ChannelInfo);
break;
case ContentMessage.MessageType.ChannelTrack:
targetSink.OnChannelTrack(msg.ChannelTrack);
break;
case ContentMessage.MessageType.ContentHeader:
{
var buffer = contentBuffer;
var pos = buffer.Position;
buffer.Seek(0, SeekOrigin.End);
buffer.Write(msg.Content.Data.Span);
buffer.Position = pos;
fileParser.Read(buffer, context);
if (buffer.Position != 0)
{
var new_buf = new MemoryStream();
var trim_pos = buffer.Position;
buffer.Close();
var buf = buffer.ToArray();
new_buf.Write(buf, (int)trim_pos, (int)(buf.Length - trim_pos));
new_buf.Position = 0;
contentBuffer = new_buf;
}
if (bufferStream.Position != 0)
{
targetSink.OnContentHeader(
new Content(
msg.Content.Stream,
msg.Content.Timestamp,
msg.Content.Position,
bufferStream.ToArray(),
msg.Content.ContFlag
)
);
bufferStream.SetLength(0);
}
}
break;
case ContentMessage.MessageType.ContentBody:
{
var buffer = contentBuffer;
var pos = buffer.Position;
buffer.Seek(0, SeekOrigin.End);
buffer.Write(msg.Content.Data.Span);
buffer.Position = pos;
fileParser.Read(buffer, context);
if (buffer.Position != 0)
{
var new_buf = new MemoryStream();
var trim_pos = buffer.Position;
buffer.Close();
var buf = buffer.ToArray();
new_buf.Write(buf, (int)trim_pos, (int)(buf.Length - trim_pos));
new_buf.Position = 0;
contentBuffer = new_buf;
}
if (bufferStream.Position != 0)
{
targetSink.OnContent(
new Content(
msg.Content.Stream,
msg.Content.Timestamp,
msg.Content.Position,
bufferStream.ToArray(),
msg.Content.ContFlag
)
);
bufferStream.SetLength(0);
}
}
break;
}
msg = await msgQueue.DequeueAsync(cancellationToken).ConfigureAwait(false);
}
targetSink.OnStop(msg.StopReason);
}
private Task <Packet> GetPacket(CancellationToken cancel_token)
{
return(contentPacketQueue.DequeueAsync(cancel_token));
}
