From 99a8154fa548f1b6166db839f5577ef3bf7bd229 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Sat, 10 Jul 2021 20:36:32 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dwebrtc=E5=8D=95track=E5=8A=9F?=
 =?UTF-8?q?=E8=83=BD=E5=BC=82=E5=B8=B8=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 webrtc/WebRtcTransport.cpp | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/webrtc/WebRtcTransport.cpp b/webrtc/WebRtcTransport.cpp
index 27c9c2e0..3940cfc0 100644
--- a/webrtc/WebRtcTransport.cpp
+++ b/webrtc/WebRtcTransport.cpp
@@ -386,13 +386,27 @@ void WebRtcTransportImp::onSendSockData(const char *buf, size_t len, struct sock
 ///////////////////////////////////////////////////////////////////
 
 bool WebRtcTransportImp::canSendRtp() const{
-    auto &sdp = getSdp(SdpType::answer);
-    return _play_src && (sdp.media[0].direction == RtpDirection::sendrecv || sdp.media[0].direction == RtpDirection::sendonly);
+    if (!_play_src) {
+        return false;
+    }
+    for (auto &m : getSdp(SdpType::answer).media) {
+        if (m.direction == RtpDirection::sendrecv || m.direction == RtpDirection::sendonly) {
+            return true;
+        }
+    }
+    return false;
 }
 
 bool WebRtcTransportImp::canRecvRtp() const{
-    auto &sdp = getSdp(SdpType::answer);
-    return _push_src && (sdp.media[0].direction == RtpDirection::sendrecv || sdp.media[0].direction == RtpDirection::recvonly);
+    if (!_push_src) {
+        return false;
+    }
+    for (auto &m : getSdp(SdpType::answer).media) {
+        if (m.direction == RtpDirection::sendrecv || m.direction == RtpDirection::recvonly) {
+            return true;
+        }
+    }
+    return false;
 }
 
 void WebRtcTransportImp::onStartWebRTC() {