webrtc_m130/pc/rtptransportinternal.h
zhihuang eb23e17798 Revert of Completed the functionalities of SrtpTransport. (patchset 7 id:320001 of https://codereview.webrtc.org/2997983002/ )
Reason for revert:
This seems to be causing some video freezes. See https://bugs.chromium.org/p/webrtc/issues/detail?id=8251

Original issue's description:
> Completed the functionalities of SrtpTransport.
>
> The SrtpTransport takes the SRTP responsibilities from the BaseChannel
> and SrtpFilter. SrtpTransport is now responsible for setting the crypto
> keys, protecting and unprotecting the packets. SrtpTransport doesn't know
> if the keys are from SDES or DTLS handshake.
>
> BaseChannel is now only responsible setting the offer/answer for SDES
> or extracting the key from DtlsTransport and configuring the
> SrtpTransport.
>
> SrtpFilter is used by BaseChannel as a helper for SDES negotiation.
>
> BUG=webrtc:7013
>
> Review-Url: https://codereview.webrtc.org/2997983002
> Cr-Commit-Position: refs/heads/master@{#19636}
> Committed: e683c6871f

TBR=deadbeef@webrtc.org,pthatcher@google.com,zhihuang@webrtc.org
Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:7013

Review-Url: https://codereview.webrtc.org/3018513002
Cr-Commit-Position: refs/heads/master@{#19895}
2017-09-19 08:12:52 +00:00

70 lines
2.6 KiB
C++

/*
* Copyright 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef PC_RTPTRANSPORTINTERNAL_H_
#define PC_RTPTRANSPORTINTERNAL_H_
#include "api/ortc/rtptransportinterface.h"
#include "rtc_base/sigslot.h"
namespace rtc {
class CopyOnWriteBuffer;
struct PacketOptions;
struct PacketTime;
} // namespace rtc
namespace webrtc {
// This represents the internal interface beneath RtpTransportInterface;
// it is not accessible to API consumers but is accessible to internal classes
// in order to send and receive RTP and RTCP packets belonging to a single RTP
// session. Additional convenience and configuration methods are also provided.
class RtpTransportInternal : public RtpTransportInterface,
public sigslot::has_slots<> {
public:
virtual void SetRtcpMuxEnabled(bool enable) = 0;
// TODO(zstein): Remove PacketTransport setters. Clients should pass these
// in to constructors instead and construct a new RtpTransportInternal instead
// of updating them.
virtual rtc::PacketTransportInternal* rtp_packet_transport() const = 0;
virtual void SetRtpPacketTransport(rtc::PacketTransportInternal* rtp) = 0;
virtual rtc::PacketTransportInternal* rtcp_packet_transport() const = 0;
virtual void SetRtcpPacketTransport(rtc::PacketTransportInternal* rtcp) = 0;
// Called whenever a transport's ready-to-send state changes. The argument
// is true if all used transports are ready to send. This is more specific
// than just "writable"; it means the last send didn't return ENOTCONN.
sigslot::signal1<bool> SignalReadyToSend;
// TODO(zstein): Consider having two signals - RtpPacketReceived and
// RtcpPacketReceived.
// The first argument is true for RTCP packets and false for RTP packets.
sigslot::signal3<bool, rtc::CopyOnWriteBuffer*, const rtc::PacketTime&>
SignalPacketReceived;
virtual bool IsWritable(bool rtcp) const = 0;
virtual bool SendPacket(bool rtcp,
rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags) = 0;
virtual bool HandlesPayloadType(int payload_type) const = 0;
virtual void AddHandledPayloadType(int payload_type) = 0;
};
} // namespace webrtc
#endif // PC_RTPTRANSPORTINTERNAL_H_