add link to FFmpeg source code on license page...

source/patched-ffmpeg-mt/LICENSE

 FFmpeg:
 -------
 
+Modified source code for FFmpeg-mt is located here:
+http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/ffmpeg/
+
 Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
 or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
 files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
 FFmpeg.
 
 Some optional parts of FFmpeg are licensed under the GNU General Public License
 version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
 these parts are used by default, you have to explicitly pass --enable-gpl to
 configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
 
 Specifically, the GPL parts of FFmpeg are
 
 - libpostproc
 - optional x86 optimizations in the files
-  libavcodec/x86/h264_deblock_sse2.asm
   libavcodec/x86/h264_idct_sse2.asm
   libavcodec/x86/idct_mmx.c
 - the X11 grabber in libavdevice/x11grab.c
 
 There are a handful of files under other licensing terms, namely:
 
 * The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
   are taken from libjpeg, see the top of the files for licensing details.
 
 Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
@@ skipping 10 matching lines @@
 as well.
 
 The OpenCORE external libraries are under the Apache License 2.0. That license
 is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of
 those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
 version needs to be upgraded by passing --enable-version3 to configure.
 
 The nonfree external library libfaac can be hooked up in FFmpeg. You need to
 pass --enable-nonfree to configure to enable it. Employ this option with care
 as FFmpeg then becomes nonfree and unredistributable.