| // Copyright 2014 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_TRANSPORT_CAST_TRANSPORT_IMPL_H_ |
| #define MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_IMPL_H_ |
| |
| #include "base/callback.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/time/tick_clock.h" |
| #include "base/time/time.h" |
| #include "base/timer/timer.h" |
| #include "media/cast/logging/logging_defines.h" |
| #include "media/cast/logging/simple_event_subscriber.h" |
| #include "media/cast/transport/cast_transport_config.h" |
| #include "media/cast/transport/cast_transport_sender.h" |
| #include "media/cast/transport/pacing/paced_sender.h" |
| #include "media/cast/transport/rtcp/rtcp_builder.h" |
| #include "media/cast/transport/rtp_sender/rtp_sender.h" |
| #include "media/cast/transport/utility/transport_encryption_handler.h" |
| |
| namespace media { |
| namespace cast { |
| namespace transport { |
| |
| class CastTransportSenderImpl : public CastTransportSender { |
| public: |
| // external_transport is only used for testing. |
| // Note that SetPacketReceiver does not work if an external |
| // transport is provided. |
| // |raw_events_callback|: Raw events will be returned on this callback |
| // which will be invoked every |raw_events_callback_interval|. |
| // This can be a null callback, i.e. if user is not interested in raw events. |
| // |raw_events_callback_interval|: This can be |base::TimeDelta()| if |
| // |raw_events_callback| is a null callback. |
| CastTransportSenderImpl( |
| net::NetLog* net_log, |
| base::TickClock* clock, |
| const net::IPEndPoint& remote_end_point, |
| const CastTransportStatusCallback& status_callback, |
| const BulkRawEventsCallback& raw_events_callback, |
| base::TimeDelta raw_events_callback_interval, |
| const scoped_refptr<base::SingleThreadTaskRunner>& transport_task_runner, |
| PacketSender* external_transport); |
| |
| virtual ~CastTransportSenderImpl(); |
| |
| virtual void InitializeAudio(const CastTransportAudioConfig& config) OVERRIDE; |
| |
| virtual void InitializeVideo(const CastTransportVideoConfig& config) OVERRIDE; |
| |
| // CastTransportSender implementation. |
| virtual void SetPacketReceiver(const PacketReceiverCallback& packet_receiver) |
| OVERRIDE; |
| |
| virtual void InsertCodedAudioFrame(const EncodedFrame& audio_frame) OVERRIDE; |
| virtual void InsertCodedVideoFrame(const EncodedFrame& video_frame) OVERRIDE; |
| |
| virtual void SendRtcpFromRtpSender(uint32 packet_type_flags, |
| uint32 ntp_seconds, |
| uint32 ntp_fraction, |
| uint32 rtp_timestamp, |
| const RtcpDlrrReportBlock& dlrr, |
| uint32 sending_ssrc, |
| const std::string& c_name) OVERRIDE; |
| |
| virtual void ResendPackets(bool is_audio, |
| const MissingFramesAndPacketsMap& missing_packets, |
| bool cancel_rtx_if_not_in_list, |
| base::TimeDelta dedupe_window) |
| OVERRIDE; |
| |
| private: |
| // If |raw_events_callback_| is non-null, calls it with events collected |
| // by |event_subscriber_| since last call. |
| void SendRawEvents(); |
| |
| base::TickClock* clock_; // Not owned by this class. |
| CastTransportStatusCallback status_callback_; |
| scoped_refptr<base::SingleThreadTaskRunner> transport_task_runner_; |
| |
| scoped_ptr<UdpTransport> transport_; |
| LoggingImpl logging_; |
| PacedSender pacer_; |
| RtcpBuilder rtcp_builder_; |
| scoped_ptr<RtpSender> audio_sender_; |
| scoped_ptr<RtpSender> video_sender_; |
| |
| // Encrypts data in EncodedFrames before they are sent. Note that it's |
| // important for the encryption to happen here, in code that would execute in |
| // the main browser process, for security reasons. This helps to mitigate |
| // the damage that could be caused by a compromised renderer process. |
| TransportEncryptionHandler audio_encryptor_; |
| TransportEncryptionHandler video_encryptor_; |
| |
| // This is non-null iff |raw_events_callback_| is non-null. |
| scoped_ptr<SimpleEventSubscriber> event_subscriber_; |
| base::RepeatingTimer<CastTransportSenderImpl> raw_events_timer_; |
| |
| BulkRawEventsCallback raw_events_callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CastTransportSenderImpl); |
| }; |
| |
| } // namespace transport |
| } // namespace cast |
| } // namespace media |
| |
| #endif // MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_IMPL_H_ |