From fcbcc81c188d27017258271705581883080119a6 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Fri, 26 Oct 2018 18:12:55 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dsdp=20=E7=9B=B8=E5=85=B3bug?=
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---
 src/RtspMuxer/RtspSdp.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/RtspMuxer/RtspSdp.h b/src/RtspMuxer/RtspSdp.h
index 088287bb..78e49ae2 100644
--- a/src/RtspMuxer/RtspSdp.h
+++ b/src/RtspMuxer/RtspSdp.h
@@ -153,9 +153,11 @@ public:
         _printer << "a=fmtp:" << playload_type << " packetization-mode=1;profile-level-id=";
 
         char strTemp[100];
-        int profile_level_id = 0;
+        uint32_t profile_level_id = 0;
         if (strSPS.length() >= 4) { // sanity check
-            profile_level_id = (strSPS[1] << 16) | (strSPS[2] << 8) | strSPS[3]; // profile_idc|constraint_setN_flag|level_idc
+            profile_level_id = (uint8_t(strSPS[1]) << 16) |
+                               (uint8_t(strSPS[2]) << 8)  |
+                               (uint8_t(strSPS[3])); // profile_idc|constraint_setN_flag|level_idc
         }
         memset(strTemp, 0, 100);
         sprintf(strTemp, "%06X", profile_level_id);