1 /* 2 * Copyright 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef PC_RTP_MEDIA_UTILS_H_ 12 #define PC_RTP_MEDIA_UTILS_H_ 13 14 #include "api/rtp_transceiver_direction.h" 15 #include "api/rtp_transceiver_interface.h" 16 17 namespace webrtc { 18 19 // Returns the RtpTransceiverDirection that satisfies specified send and receive 20 // conditions. 21 RtpTransceiverDirection RtpTransceiverDirectionFromSendRecv(bool send, 22 bool recv); 23 24 // Returns true only if the direction will send media. 25 bool RtpTransceiverDirectionHasSend(RtpTransceiverDirection direction); 26 27 // Returns true only if the direction will receive media. 28 bool RtpTransceiverDirectionHasRecv(RtpTransceiverDirection direction); 29 30 // Returns the RtpTransceiverDirection which is the reverse of the given 31 // direction. 32 RtpTransceiverDirection RtpTransceiverDirectionReversed( 33 RtpTransceiverDirection direction); 34 35 // Returns the RtpTransceiverDirection with its send component set to |send|. 36 RtpTransceiverDirection RtpTransceiverDirectionWithSendSet( 37 RtpTransceiverDirection direction, 38 bool send = true); 39 40 // Returns the RtpTransceiverDirection with its recv component set to |recv|. 41 RtpTransceiverDirection RtpTransceiverDirectionWithRecvSet( 42 RtpTransceiverDirection direction, 43 bool recv = true); 44 45 // Returns an unspecified string representation of the given direction. 46 const char* RtpTransceiverDirectionToString(RtpTransceiverDirection direction); 47 48 // Returns the intersection of the directions of two transceivers. 49 RtpTransceiverDirection RtpTransceiverDirectionIntersection( 50 RtpTransceiverDirection lhs, 51 RtpTransceiverDirection rhs); 52 53 #ifdef WEBRTC_UNIT_TEST 54 inline std::ostream& operator<<( // no-presubmit-check TODO(webrtc:8982) 55 std::ostream& os, // no-presubmit-check TODO(webrtc:8982) 56 RtpTransceiverDirection direction) { 57 return os << RtpTransceiverDirectionToString(direction); 58 } 59 #endif // WEBRTC_UNIT_TEST 60 61 } // namespace webrtc 62 63 #endif // PC_RTP_MEDIA_UTILS_H_ 64