webm_mem_playback (FakeFish Ltd.) is available under the BSD 3-clause license - see LICENSE_webm_mem_playback.txt for more details.
libvpx (The WebM Project authors) is available under the BSD 3-clause license - see libvpx/LICENSE for more details.
libwebm (Google Inc) is available under the BSD 3-clause license - see libwebm/LICENSE for more details.
opus (Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin, Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding, Erik de Castro Lopo) is available under the BSD 3-clause license - see opus/COPYING for more details.