1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
6 #define REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
8 #include "base/memory/ref_counted.h"
9 #include "remoting/host/audio_capturer.h"
10 #include "remoting/host/audio_silence_detector.h"
11 #include "remoting/host/linux/audio_pipe_reader.h"
19 // Linux implementation of AudioCapturer interface which captures audio by
20 // reading samples from a Pulseaudio "pipe" sink.
21 class AudioCapturerLinux
: public AudioCapturer
,
22 public AudioPipeReader::StreamObserver
{
24 // Must be called to configure the capturer before the first capturer instance
25 // is created. |task_runner| is an IO thread that is passed to AudioPipeReader
26 // to read from the pipe.
27 static void InitializePipeReader(
28 scoped_refptr
<base::SingleThreadTaskRunner
> task_runner
,
29 const base::FilePath
& pipe_name
);
31 explicit AudioCapturerLinux(
32 scoped_refptr
<AudioPipeReader
> pipe_reader
);
33 virtual ~AudioCapturerLinux();
35 // AudioCapturer interface.
36 virtual bool Start(const PacketCapturedCallback
& callback
) override
;
37 virtual void Stop() override
;
38 virtual bool IsStarted() override
;
40 // AudioPipeReader::StreamObserver interface.
41 virtual void OnDataRead(scoped_refptr
<base::RefCountedString
> data
) override
;
44 scoped_refptr
<AudioPipeReader
> pipe_reader_
;
45 PacketCapturedCallback callback_
;
47 AudioSilenceDetector silence_detector_
;
49 DISALLOW_COPY_AND_ASSIGN(AudioCapturerLinux
);
52 } // namespace remoting
54 #endif // REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_