From 147ba6147c0c35be2716d17b614b72017350d82e Mon Sep 17 00:00:00 2001
From: ziyue <1213642868@qq.com>
Date: Tue, 22 Feb 2022 16:53:05 +0800
Subject: [PATCH] =?UTF-8?q?rtsp/rtp:=20=E8=BF=87=E6=BB=A4=E5=B9=B2?=
 =?UTF-8?q?=E6=89=B0=E7=9A=84rtp=20pt,=20=E6=8F=90=E9=AB=98=E5=85=BC?=
 =?UTF-8?q?=E5=AE=B9=E6=80=A7:=20#1445?=
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---
 src/Rtsp/RtpReceiver.cpp | 7 +++++++
 src/Rtsp/RtpReceiver.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/src/Rtsp/RtpReceiver.cpp b/src/Rtsp/RtpReceiver.cpp
index e9af7264..996f70d7 100644
--- a/src/Rtsp/RtpReceiver.cpp
+++ b/src/Rtsp/RtpReceiver.cpp
@@ -55,6 +55,13 @@ RtpPacket::Ptr RtpTrack::inputRtp(TrackType type, int sample_rate, uint8_t *ptr,
     //比对缓存ssrc
     auto ssrc = ntohl(header->ssrc);
 
+    if (_pt == 0xFF) {
+        _pt = header->pt;
+    } else if (header->pt != _pt) {
+        TraceL << "rtp pt 不匹配:" << (int) header->pt << " !=" << (int) _pt;
+        return nullptr;
+    }
+
     if (!_ssrc) {
         //记录并锁定ssrc
         _ssrc = ssrc;
diff --git a/src/Rtsp/RtpReceiver.h b/src/Rtsp/RtpReceiver.h
index df7de687..86dbb8d7 100644
--- a/src/Rtsp/RtpReceiver.h
+++ b/src/Rtsp/RtpReceiver.h
@@ -182,6 +182,7 @@ protected:
 
 private:
     bool _disable_ntp = false;
+    uint8_t _pt = 0xFF;
     uint32_t _ssrc = 0;
     toolkit::Ticker _ssrc_alive;
     NtpStamp _ntp_stamp;