3D-DWT encoders are good candidates for applications like professional video editing, IPTV video surveillance applications, live event IPTV broadcast, multi-spectral satellite imaging, HQ video delivery, etc, in order to reconstruct a frame as fast as possible. However, the main drawback of the algorithms that compute the 3D-DWT is the huge memory requirement in practical implementations. In this paper, we present a fast frame-based 3D-DWT video encoder with low memory usage. Furthermore, we evaluate the behavior of the encoding system when different separable 1D filters are applied, both in the spatial and temporal dimension.