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/*
* 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/rtp_media_utils.h"
#include "rtc_base/checks.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:
case RtpTransceiverDirection::kStopped:
return direction;
case RtpTransceiverDirection::kSendOnly:
return RtpTransceiverDirection::kRecvOnly;
case RtpTransceiverDirection::kRecvOnly:
return RtpTransceiverDirection::kSendOnly;
default:
RTC_DCHECK_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";
case RtpTransceiverDirection::kStopped:
return "kStopped";
}
RTC_DCHECK_NOTREACHED();
return "";
}
RtpTransceiverDirection RtpTransceiverDirectionIntersection(
RtpTransceiverDirection lhs,
RtpTransceiverDirection rhs) {
return RtpTransceiverDirectionFromSendRecv(
RtpTransceiverDirectionHasSend(lhs) &&
RtpTransceiverDirectionHasSend(rhs),
RtpTransceiverDirectionHasRecv(lhs) &&
RtpTransceiverDirectionHasRecv(rhs));
}
} // namespace webrtc
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