From 7722564ad8af177e7c18c9512374185ccc7c9f13 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Sun, 28 Mar 2021 23:36:11 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=B3=A8=E9=87=8A?=
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---
 webrtc/Sdp.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/webrtc/Sdp.h b/webrtc/Sdp.h
index e10ad091..5afd294e 100644
--- a/webrtc/Sdp.h
+++ b/webrtc/Sdp.h
@@ -167,6 +167,10 @@ public:
     // m=<media> <port> <proto> <fmt> ...
     TrackType type;
     uint16_t port;
+    //RTP/AVP：应用场景为视频/音频的 RTP 协议。参考 RFC 3551
+    //RTP/SAVP：应用场景为视频/音频的 SRTP 协议。参考 RFC 3711
+    //RTP/AVPF: 应用场景为视频/音频的 RTP 协议，支持 RTCP-based Feedback。参考 RFC 4585
+    //RTP/SAVPF: 应用场景为视频/音频的 SRTP 协议，支持 RTCP-based Feedback。参考 RFC 5124
     string proto;
     vector<uint32_t> fmts;