chromium/media/base/loopback_audio_converter.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_BASE_LOOPBACK_AUDIO_CONVERTER_H_
#define MEDIA_BASE_LOOPBACK_AUDIO_CONVERTER_H_

#include "media/base/audio_converter.h"

namespace media {

// LoopbackAudioConverter works similar to AudioConverter and converts input
// streams to different audio parameters. Then, the LoopbackAudioConverter can
// be used as an input to another AudioConverter. This allows us to
// use converted audio from AudioOutputStreams as input to an AudioConverter.
// For example, this allows converting multiple streams into a common format and
// using the converted audio as input to another AudioConverter (i.e. a mixer).
class MEDIA_EXPORT LoopbackAudioConverter
    : public AudioConverter::InputCallback { … };

}  // namespace media

#endif  // MEDIA_BASE_LOOPBACK_AUDIO_CONVERTER_H_