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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_FRAMER_H_
#define MEDIA_CAST_FRAMER_FRAMER_H_
#include <map>
#include "base/basictypes.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "base/time/default_tick_clock.h"
#include "base/time/tick_clock.h"
#include "base/time/time.h"
#include "media/cast/framer/cast_message_builder.h"
#include "media/cast/framer/frame_buffer.h"
#include "media/cast/framer/frame_id_map.h"
#include "media/cast/rtcp/rtcp.h"
#include "media/cast/rtp_common/rtp_defines.h"
namespace media {
namespace cast {
typedef std::map<uint8, linked_ptr<FrameBuffer> > FrameList;
class Framer {
public:
Framer(RtpPayloadFeedback* incoming_payload_feedback,
uint32 ssrc,
bool decoder_faster_than_max_frame_rate,
int max_unacked_frames);
~Framer();
void InsertPacket(const uint8* payload_data,
int payload_size,
const RtpCastHeader& rtp_header);
// Extracts a complete encoded frame - will only return a complete continuous
// frame.
// Returns false if the frame does not exist or if the frame is not complete
// within the given time frame.
bool GetEncodedVideoFrame(const base::TimeTicks& timeout,
EncodedVideoFrame* video_frame,
uint32* rtp_timestamp,
bool* next_frame);
bool GetEncodedAudioFrame(const base::TimeTicks& timeout,
EncodedAudioFrame* audio_frame,
uint32* rtp_timestamp,
bool* next_frame);
void ReleaseFrame(uint8 frame_id);
// Reset framer state to original state and flush all pending buffers.
void Reset();
bool TimeToSendNextCastMessage(base::TimeTicks* time_to_send);
void SendCastMessage();
void set_clock(base::TickClock* clock) {
clock_ = clock;
cast_msg_builder_->set_clock(clock);
}
private:
// Return true if we should wait.
bool WaitForNextFrame(const base::TimeTicks& timeout) const;
const bool decoder_faster_than_max_frame_rate_;
FrameList frames_;
FrameIdMap frame_id_map_;
base::DefaultTickClock default_tick_clock_;
base::TickClock* clock_;
scoped_ptr<CastMessageBuilder> cast_msg_builder_;
DISALLOW_COPY_AND_ASSIGN(Framer);
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_FRAMER_FRAMER_H_
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