From 7d08e06922b22652877694313e54b83c27e47b1f Mon Sep 17 00:00:00 2001
From: dexter <178529795@qq.com>
Date: Sun, 21 Aug 2022 14:49:54 +0800
Subject: [PATCH] =?UTF-8?q?=E5=85=BC=E5=AE=B9sdp=E4=B8=AD=E6=B2=A1?=
 =?UTF-8?q?=E6=9C=89=E5=8C=85=E5=90=ABsps=E5=92=8Cpps=E7=9A=84=E6=83=85?=
 =?UTF-8?q?=E5=86=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 publisher.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/publisher.go b/publisher.go
index 8b95973..8357cb8 100644
--- a/publisher.go
+++ b/publisher.go
@@ -63,8 +63,12 @@ func (p *RTSPPublisher) SetTracks() error {
 				}
 				p.Tracks[trackId] = vt
 				t := track.(*gortsplib.TrackH264)
-				vt.WriteSlice(common.NALUSlice{t.SPS})
-				vt.WriteSlice(common.NALUSlice{t.PPS})
+				if len(t.SPS) > 0 {
+					vt.WriteSlice(common.NALUSlice{t.SPS})
+				}
+				if len(t.PPS) > 0 {
+					vt.WriteSlice(common.NALUSlice{t.PPS})
+				}
 			case "h265", "hevc":
 				vt := NewH265(p.Stream)
 				if payloadType, err := strconv.Atoi(vals[0]); err == nil {