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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_H_
#define REMOTING_HOST_AUDIO_CAPTURER_H_
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
namespace remoting {
class AudioPacket;
class AudioCapturer {
public:
typedef base::Callback<void(scoped_ptr<AudioPacket> packet)>
PacketCapturedCallback;
virtual ~AudioCapturer() {}
// Returns true if audio capturing is supported on this platform. If this
// returns true, then Create() must not return nullptr.
static bool IsSupported();
static scoped_ptr<AudioCapturer> Create();
// Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed
// PCM stereo format. Capturers may choose the number of frames per packet.
// Returns true on success.
virtual bool Start(const PacketCapturedCallback& callback) = 0;
static bool IsValidSampleRate(int sample_rate);
};
} // namespace remoting
#endif // REMOTING_HOST_AUDIO_CAPTURER_H_
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