Added H.264 movie codec support.

code/external/ffmpeg-win64/licenses/libgsm.txt

@@ -0,0 +1,35 @@
+Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann,
+Technische Universitaet Berlin
+
+Any use of this software is permitted provided that this notice is not
+removed and that neither the authors nor the Technische Universitaet Berlin
+are deemed to have made any representations as to the suitability of this
+software for any purpose nor are held responsible for any defects of
+this software.  THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
+
+As a matter of courtesy, the authors request to be informed about uses
+this software has found, about bugs in this software, and about any
+improvements that may be of general interest.
+
+Berlin, 28.11.1994
+Jutta Degener
+Carsten Bormann
+
+                                 oOo
+
+Since the original terms of 15 years ago maybe do not make our
+intentions completely clear given today's refined usage of the legal
+terms, we append this additional permission:
+
+      Permission to use, copy, modify, and distribute this software
+      for any purpose with or without fee is hereby granted,
+      provided that this notice is not removed and that neither
+      the authors nor the Technische Universitaet Berlin are
+      deemed to have made any representations as to the suitability
+      of this software for any purpose nor are held responsible
+      for any defects of this software.  THERE IS ABSOLUTELY NO
+      WARRANTY FOR THIS SOFTWARE.
+
+Berkeley/Bremen, 05.04.2009
+Jutta Degener
+Carsten Bormann