profile: fix profile_chain_open (for profiles without muxing)

diff --git a/src/profile.h b/src/profile.h
index c8d05583e95768ec5f68f8dfae309d421f742a69..5332cedac3b5fcf189c9e7f5de7892617f932250 100644 (file)
--- a/src/profile.h
+++ b/src/profile.h
@@ -98,7 +98,7 @@ profile_work(profile_t *pro, struct streaming_target *src,
 static inline int
 profile_chain_open(profile_t *pro, profile_chain_t *prch,
                    muxer_config_t *m_cfg, int flags, size_t qsize)
-  { return pro->pro_open(pro, prch, m_cfg, flags, qsize); }
+  { return pro && pro->pro_open ? pro->pro_open(pro, prch, m_cfg, flags, qsize) : -1; }
 int  profile_chain_raw_open(profile_chain_t *prch, size_t qsize);
 void profile_chain_close(profile_chain_t *prch);