From 25e710c61ebf4c6909276a894a77ea26b02e59ce Mon Sep 17 00:00:00 2001
From: Jack Lau <jacklau1222@qq.com>
Date: Thu, 17 Jul 2025 20:10:22 +0800
Subject: [PATCH] avformat/whip: force NONBLOCK for rtp

We need to ensure rtp sets NONBLOCK since the dtls
handshake has potentially overriden the sockets mode.

Signed-off-by: Jack Lau <jacklau1222@qq.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
---
 libavformat/whip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/whip.c b/libavformat/whip.c
index 17a3cd0ea8..fd6de8503f 100644
--- a/libavformat/whip.c
+++ b/libavformat/whip.c
@@ -1495,6 +1495,7 @@ static int create_rtp_muxer(AVFormatContext *s)
     uint8_t *buffer = NULL;
     char buf[64];
     WHIPContext *whip = s->priv_data;
+    whip->udp->flags |= AVIO_FLAG_NONBLOCK;
 
     const AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
     if (!rtp_format) {