webrtc/pc/rtpmediautils.cc
Steve Anton 22da89f502 Implement legacy offer_to_receive options for Unified Plan
This implements the WebRTC specification for handling
the legacy offer options offer_to_receive_audio and
offer_to_receive_video. They are not implemented for CreateAnswer.

With Unified Plan semantics, clients should switch to the
RtpTransceiver API for ensuring the correct media sections are
offered.

Bug: webrtc:7600
Change-Id: I6ced00b86b165a352bd0ca3d64b48fadcfd12235
Reviewed-on: https://webrtc-review.googlesource.com/41341
Reviewed-by: Peter Thatcher <pthatcher@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21784}
2018-01-27 02:20:29 +00:00

82 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.
*/
#include "pc/rtpmediautils.h"
namespace webrtc {
RtpTransceiverDirection RtpTransceiverDirectionFromSendRecv(bool send,
bool recv) {
if (send && recv) {
return RtpTransceiverDirection::kSendRecv;
} else if (send && !recv) {
return RtpTransceiverDirection::kSendOnly;
} else if (!send && recv) {
return RtpTransceiverDirection::kRecvOnly;
} else {
return RtpTransceiverDirection::kInactive;
}
}
bool RtpTransceiverDirectionHasSend(RtpTransceiverDirection direction) {
return direction == RtpTransceiverDirection::kSendRecv ||
direction == RtpTransceiverDirection::kSendOnly;
}
bool RtpTransceiverDirectionHasRecv(RtpTransceiverDirection direction) {
return direction == RtpTransceiverDirection::kSendRecv ||
direction == RtpTransceiverDirection::kRecvOnly;
}
RtpTransceiverDirection RtpTransceiverDirectionReversed(
RtpTransceiverDirection direction) {
switch (direction) {
case RtpTransceiverDirection::kSendRecv:
case RtpTransceiverDirection::kInactive:
return direction;
case RtpTransceiverDirection::kSendOnly:
return RtpTransceiverDirection::kRecvOnly;
case RtpTransceiverDirection::kRecvOnly:
return RtpTransceiverDirection::kSendOnly;
}
RTC_NOTREACHED();
return direction;
}
RtpTransceiverDirection RtpTransceiverDirectionWithSendSet(
RtpTransceiverDirection direction,
bool send) {
return RtpTransceiverDirectionFromSendRecv(
send, RtpTransceiverDirectionHasRecv(direction));
}
RtpTransceiverDirection RtpTransceiverDirectionWithRecvSet(
RtpTransceiverDirection direction,
bool recv) {
return RtpTransceiverDirectionFromSendRecv(
RtpTransceiverDirectionHasSend(direction), recv);
}
const char* RtpTransceiverDirectionToString(RtpTransceiverDirection direction) {
switch (direction) {
case RtpTransceiverDirection::kSendRecv:
return "kSendRecv";
case RtpTransceiverDirection::kSendOnly:
return "kSendOnly";
case RtpTransceiverDirection::kRecvOnly:
return "kRecvOnly";
case RtpTransceiverDirection::kInactive:
return "kInactive";
}
RTC_NOTREACHED();
return "";
}
} // namespace webrtc