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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_AUDIO_SENDER_H_
#define MEDIA_CAST_AUDIO_SENDER_H_
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/non_thread_safe.h"
#include "base/time/default_tick_clock.h"
#include "base/time/tick_clock.h"
#include "base/time/time.h"
#include "media/cast/cast_config.h"
#include "media/cast/cast_thread.h"
#include "media/cast/rtcp/rtcp.h"
#include "media/cast/rtp_sender/rtp_sender.h"
namespace media {
namespace cast {
class AudioEncoder;
class LocalRtcpAudioSenderFeedback;
class LocalRtpSenderStatistics;
class PacedPacketSender;
// This class is not thread safe.
// It's only called from the main cast thread.
class AudioSender : public base::NonThreadSafe,
public base::SupportsWeakPtr<AudioSender> {
public:
AudioSender(scoped_refptr<CastThread> cast_thread,
const AudioSenderConfig& audio_config,
PacedPacketSender* const paced_packet_sender);
virtual ~AudioSender();
// The audio_frame must be valid until the closure callback is called.
// The closure callback is called from the main cast thread as soon as
// the encoder is done with the frame; it does not mean that the encoded frame
// has been sent out.
void InsertRawAudioFrame(const PcmAudioFrame* audio_frame,
const base::TimeTicks& recorded_time,
const base::Closure callback);
// The audio_frame must be valid until the closure callback is called.
// The closure callback is called from the main cast thread as soon as
// the cast sender is done with the frame; it does not mean that the encoded
// frame has been sent out.
void InsertCodedAudioFrame(const EncodedAudioFrame* audio_frame,
const base::TimeTicks& recorded_time,
const base::Closure callback);
// Only called from the main cast thread.
void IncomingRtcpPacket(const uint8* packet, int length,
const base::Closure callback);
// Only used for testing.
void set_clock(base::TickClock* clock) {
clock_ = clock;
rtcp_.set_clock(clock);
rtp_sender_.set_clock(clock);
}
protected:
void SendEncodedAudioFrame(scoped_ptr<EncodedAudioFrame> audio_frame,
const base::TimeTicks& recorded_time);
private:
friend class LocalRtcpAudioSenderFeedback;
void ResendPackets(
const MissingFramesAndPacketsMap& missing_frames_and_packets);
void ScheduleNextRtcpReport();
void SendRtcpReport();
base::DefaultTickClock default_tick_clock_;
base::TickClock* clock_;
base::WeakPtrFactory<AudioSender> weak_factory_;
const uint32 incoming_feedback_ssrc_;
scoped_refptr<CastThread> cast_thread_;
scoped_refptr<AudioEncoder> audio_encoder_;
RtpSender rtp_sender_;
scoped_ptr<LocalRtpSenderStatistics> rtp_audio_sender_statistics_;
scoped_ptr<LocalRtcpAudioSenderFeedback> rtcp_feedback_;
Rtcp rtcp_;
DISALLOW_COPY_AND_ASSIGN(AudioSender);
};
} // namespace cast
} // namespace media
#endif // MEDIA_CAST_AUDIO_SENDER_H_
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