[FFmpeg-devel] [PATCH 05/14] avformat/tls_openssl: set default MTU if none is set

[Timo Rothenpieler <timo@rothenpieler.org>]

---
 libavformat/tls_openssl.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/libavformat/tls_openssl.c b/libavformat/tls_openssl.c
index f116b5eac6..900ee0f5ab 100644
--- a/libavformat/tls_openssl.c
+++ b/libavformat/tls_openssl.c
@@ -839,13 +839,17 @@ static int dtls_start(URLContext *h, const char *url, int flags, AVDictionary **
     /* Setup the callback for logging. */
     SSL_set_ex_data(p->ssl, 0, p);
     SSL_set_info_callback(p->ssl, openssl_info_callback);
+
     /**
      * We have set the MTU to fragment the DTLS packet. It is important to note that the
      * packet is split to ensure that each handshake packet is smaller than the MTU.
      */
+    if (c->mtu <= 0)
+        c->mtu = 1096;
     SSL_set_options(p->ssl, SSL_OP_NO_QUERY_MTU);
-    SSL_set_mtu(p->ssl, p->tls_shared.mtu);
-    DTLS_set_link_mtu(p->ssl, p->tls_shared.mtu);
+    SSL_set_mtu(p->ssl, c->mtu);
+    DTLS_set_link_mtu(p->ssl, c->mtu);
+
     ret = init_bio_method(h);
     if (ret < 0)
         goto fail;
-- 
2.49.0

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