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// Copyright (c) 2010 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_PROTOCOL_RTP_READER_H_
#define REMOTING_PROTOCOL_RTP_READER_H_
#include "base/scoped_ptr.h"
#include "remoting/base/compound_buffer.h"
#include "remoting/protocol/rtp_utils.h"
#include "remoting/protocol/socket_reader_base.h"
namespace remoting {
namespace protocol {
class RtpPacket {
public:
RtpPacket();
~RtpPacket();
const RtpHeader& header() const { return header_; }
RtpHeader* mutable_header() { return &header_; }
const Vp8Descriptor& vp8_descriptor() const { return vp8_descriptor_; }
Vp8Descriptor* mutable_vp8_descriptor() { return &vp8_descriptor_; }
const CompoundBuffer& payload() const { return payload_; }
CompoundBuffer* mutable_payload() { return &payload_; }
uint32 extended_sequence_number() const {
return extended_sequence_number_;
}
void set_extended_sequence_number(uint32 value) {
extended_sequence_number_ = value;
}
private:
RtpHeader header_;
CompoundBuffer payload_;
Vp8Descriptor vp8_descriptor_;
uint32 extended_sequence_number_;
};
// RtpReader implements and RTP receiver. It reads packets from RTP
// socket, parses them, calculates extended sequence number and then
// passes them to a callback. It also collects statistics for RTCP
// receiver reports, but doesn't send any RTCP packets itself.
class RtpReader : public SocketReaderBase {
public:
RtpReader();
~RtpReader();
// The OnMessageCallback is called whenever a new message is received.
// Ownership of the message is passed the callback.
typedef Callback1<const RtpPacket*>::Type OnMessageCallback;
// Initialize the reader and start reading. Must be called on the thread
// |socket| belongs to. The callback will be called when a new message is
// received. RtpReader owns |on_message_callback|, doesn't own
// |socket|.
void Init(net::Socket* socket, OnMessageCallback* on_message_callback);
void GetReceiverReport(RtcpReceiverReport* report);
protected:
friend class RtpVideoReaderTest;
virtual void OnDataReceived(net::IOBuffer* buffer, int data_size);
private:
scoped_ptr<OnMessageCallback> on_message_callback_;
uint16 max_sequence_number_;
uint16 wrap_around_count_;
int start_sequence_number_;
int total_packets_received_;
DISALLOW_COPY_AND_ASSIGN(RtpReader);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_RTP_READER_H_
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