winlin

refine code, use RTMP_FMT_TYPE0 instead

@@ -3365,3 +3365,4 @@ int SrsUserControlPacket::encode_packet(SrsStream* stream) @@ -3365,3 +3365,4 @@ int SrsUserControlPacket::encode_packet(SrsStream* stream)
3365 3365
3366 return ret; 3366 return ret;
3367 } 3367 }
  3368 +