// Copyright 2013 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.
//
// This is the main interface for the cast receiver. All configuration are done
// at creation.
#ifndef MEDIA_CAST_CAST_RECEIVER_H_
#define MEDIA_CAST_CAST_RECEIVER_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/time/time.h"
#include "media/cast/cast_config.h"
#include "media/cast/cast_environment.h"
namespace media {
class VideoFrame;
}
namespace media {
namespace cast {
// Callback in which the raw audio frame and play-out time will be returned
// once decoding is complete.
typedef base::Callback<void(scoped_ptr<PcmAudioFrame>, const base::TimeTicks&)>
AudioFrameDecodedCallback;
// Callback in which the encoded audio frame and play-out time will be returned.
typedef base::Callback<void(scoped_ptr<EncodedAudioFrame>,
const base::TimeTicks&)> AudioFrameEncodedCallback;
// Callback in which the raw frame and render time will be returned once
// decoding is complete.
typedef base::Callback<void(const scoped_refptr<media::VideoFrame>& video_frame,
const base::TimeTicks&)>
VideoFrameDecodedCallback;
// Callback in which the encoded video frame and render time will be returned.
typedef base::Callback<void(scoped_ptr<EncodedVideoFrame>,
const base::TimeTicks&)> VideoFrameEncodedCallback;
// This Class is thread safe.
class FrameReceiver : public base::RefCountedThreadSafe<FrameReceiver> {
public:
virtual void GetRawAudioFrame(int number_of_10ms_blocks,
int desired_frequency,
const AudioFrameDecodedCallback& callback) = 0;
virtual void GetCodedAudioFrame(
const AudioFrameEncodedCallback& callback) = 0;
virtual void GetRawVideoFrame(const VideoFrameDecodedCallback& callback) = 0;
virtual void GetEncodedVideoFrame(
const VideoFrameEncodedCallback& callback) = 0;
protected:
virtual ~FrameReceiver() {}
private:
friend class base::RefCountedThreadSafe<FrameReceiver>;
};
// This Class is thread safe.
class CastReceiver {
public:
static CastReceiver* CreateCastReceiver(
scoped_refptr<CastEnvironment> cast_environment,
const AudioReceiverConfig& audio_config,
const VideoReceiverConfig& video_config,
PacketSender* const packet_sender);
// All received RTP and RTCP packets for the call should be inserted to this
// PacketReceiver.
virtual scoped_refptr<PacketReceiver> packet_receiver() = 0;
// Polling interface to get audio and video frames from the CastReceiver.
virtual scoped_refptr<FrameReceiver> frame_receiver() = 0;
virtual ~CastReceiver() {}
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_CAST_RECEIVER_H_