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// 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.
#ifndef MEDIA_CAST_FRAMER_FRAME_ID_MAP_H_
#define MEDIA_CAST_FRAMER_FRAME_ID_MAP_H_
#include <map>
#include <set>
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "media/cast/cast_config.h"
#include "media/cast/rtcp/rtcp_defines.h"
#include "media/cast/rtp_common/rtp_defines.h"
namespace media {
namespace cast {
class FrameInfo {
public:
FrameInfo(uint8 frame_id,
uint8 referenced_frame_id,
uint16 max_packet_id,
bool key_frame);
~FrameInfo();
// Returns true if frame is complete after the insert.
bool InsertPacket(uint16 packet_id);
bool Complete() const;
void GetMissingPackets(bool newest_frame,
PacketIdSet* missing_packets) const;
bool is_key_frame() const { return is_key_frame_; }
uint8 frame_id() const { return frame_id_; }
uint8 referenced_frame_id() const { return referenced_frame_id_; }
private:
const bool is_key_frame_;
const uint8 frame_id_;
const uint8 referenced_frame_id_;
uint16 max_received_packet_id_;
PacketIdSet missing_packets_;
DISALLOW_COPY_AND_ASSIGN(FrameInfo);
};
typedef std::map<uint8, linked_ptr<FrameInfo> > FrameMap;
class FrameIdMap {
public:
FrameIdMap();
~FrameIdMap();
// Returns false if not a valid (old) packet, otherwise returns true.
bool InsertPacket(const RtpCastHeader& rtp_header, bool* complete);
bool Empty() const;
bool FrameExists(uint8 frame_id) const;
uint8 NewestFrameId() const;
void RemoveOldFrames(uint8 frame_id);
void Clear();
// Identifies the next frame to be released (rendered).
bool NextContinuousFrame(uint8* frame_id) const;
uint8 LastContinuousFrame() const;
bool NextAudioFrameAllowingMissingFrames(uint8* frame_id) const;
bool NextVideoFrameAllowingSkippingFrames(uint8* frame_id) const;
int NumberOfCompleteFrames() const;
void GetMissingPackets(uint8 frame_id,
bool last_frame,
PacketIdSet* missing_packets) const;
private:
bool ContinuousFrame(FrameInfo* frame) const;
bool DecodableVideoFrame(FrameInfo* frame) const;
FrameMap frame_map_;
bool waiting_for_key_;
uint8 last_released_frame_;
uint8 newest_frame_id_;
DISALLOW_COPY_AND_ASSIGN(FrameIdMap);
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_FRAMER_FRAME_ID_MAP_H_
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