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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
#define REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
#include "remoting/host/audio_capturer.h"
#include "base/message_loop.h"
#include "base/time.h"
#include "base/timer.h"
class FilePath;
namespace remoting {
class AudioCapturerLinux : public AudioCapturer,
public MessageLoopForIO::Watcher {
public:
// Must be called to configure the capturer before the first instance is
// created.
static void SetPipeName(const FilePath& pipe_name);
explicit AudioCapturerLinux(const FilePath& pipe_name);
virtual ~AudioCapturerLinux();
// AudioCapturer interface.
virtual bool Start(const PacketCapturedCallback& callback) OVERRIDE;
virtual void Stop() OVERRIDE;
virtual bool IsStarted() OVERRIDE;
// MessageLoopForIO::Watcher interface.
virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
private:
void StartTimer();
void DoCapture();
void WaitForPipeReadable();
int pipe_fd_;
base::RepeatingTimer<AudioCapturerLinux> timer_;
PacketCapturedCallback callback_;
// Time when capturing was started.
base::TimeTicks started_time_;
// Stream position of the last capture.
int64 last_capture_samples_;
// Bytes left from the previous read.
std::string left_over_bytes_;
MessageLoopForIO::FileDescriptorWatcher file_descriptor_watcher_;
DISALLOW_COPY_AND_ASSIGN(AudioCapturerLinux);
};
} // namespace remoting
#endif // REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
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