From 45c882e4beb7e3c85573dbfc1a54c77efdf70aa1 Mon Sep 17 00:00:00 2001
From: Shaofan Qi <vshaqi@gmail.com>
Date: Sun, 25 Sep 2022 21:50:56 +0800
Subject: [PATCH] Allow maxptime equal to minptime in the SDP.

The DCHECK crashes debug builds running some applications such as Webex.

Bug: None
Change-Id: I0061286c4c1d04964678a00014896f1fccd4685d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/276460
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38644}
---
 AUTHORS          | 1 +
 pc/webrtc_sdp.cc | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/AUTHORS b/AUTHORS
index 7506cba09e..c991ce8fe5 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -106,6 +106,7 @@ Sarah Thompson <sarah@telergy.com>
 Satender Saroha <ssaroha@yahoo.com>
 Saul Kravitz <Saul.Kravitz@celera.com>
 Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
+Shaofan Qi <vshaqi@gmail.com>
 Shuhai Peng <shuhai.peng@intel.com>
 Silviu Caragea <silviu.cpp@gmail.com>
 Stefan Gula <steweg@gmail.com>
diff --git a/pc/webrtc_sdp.cc b/pc/webrtc_sdp.cc
index 39b16901a1..e7ac752f6c 100644
--- a/pc/webrtc_sdp.cc
+++ b/pc/webrtc_sdp.cc
@@ -1940,7 +1940,7 @@ void BuildRtpmap(const MediaContentDescription* media_desc,
     if (GetMinValue(maxptimes, &min_maxptime)) {
       AddAttributeLine(kCodecParamMaxPTime, min_maxptime, message);
     }
-    RTC_DCHECK(min_maxptime > max_minptime);
+    RTC_DCHECK_GE(min_maxptime, max_minptime);
     // Populate the ptime attribute with the smallest ptime or the largest
     // minptime, whichever is the largest, for all codecs under the same m-line.
     int ptime = INT_MAX;