[FFmpeg-devel] [PATCH] LICENSE: Thorough editing

Timothy Gu timothygu99 at gmail.com
Sun Feb 7 18:16:49 CET 2016


---
 LICENSE.md | 41 +++++++++++++++++++++++------------------
 1 file changed, 23 insertions(+), 18 deletions(-)

diff --git a/LICENSE.md b/LICENSE.md
index 0c53d0f..b50430f 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-#FFmpeg:
+# License
 
 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
@@ -14,15 +14,18 @@ Specifically, the GPL parts of FFmpeg are:
 
 - libpostproc
 - optional x86 optimizations in the files
-  - `libavcodec/x86/flac_dsp_gpl.asm`
-  - `libavcodec/x86/idct_mmx.c`
-  - `libavfilter/x86/vf_removegrain.asm`
-- libutvideo encoding/decoding wrappers in
-  `libavcodec/libutvideo*.cpp`
+    - `libavcodec/x86/flac_dsp_gpl.asm`
+    - `libavcodec/x86/idct_mmx.c`
+    - `libavfilter/x86/vf_removegrain.asm`
+- libutvideo encoding/decoding wrappers in `libavcodec/libutvideo*.cpp`
 - the X11 grabber in `libavdevice/x11grab.c`
-- the swresample test app in
-  `libswresample/swresample-test.c`
-- the `texi2pod.pl` tool
+- the following building and testing tools
+    - `compat/solaris/make_sunver.pl`
+    - `doc/t2h.pm`
+    - `doc/texi2pod.pl`
+    - `libswresample/swresample-test.c`
+    - `tests/checkasm/*`
+    - `tests/tiny_ssim.c`
 - the following filters in libavfilter:
     - `f_ebur128.c`
     - `vf_blackframe.c`
@@ -47,9 +50,9 @@ Specifically, the GPL parts of FFmpeg are:
     - `vf_pp.c`
     - `vf_pp7.c`
     - `vf_pullup.c`
+    - `vf_repeatfields.c`
     - `vf_sab.c`
     - `vf_smartblur.c`
-    - `vf_repeatfields.c`
     - `vf_spp.c`
     - `vf_stereo3d.c`
     - `vf_super2xsai.c`
@@ -73,14 +76,12 @@ There are a handful of files under other licensing terms, namely:
 * `tests/reference.pnm` is under the expat license.
 
 
-external libraries
-==================
+## External libraries
 
 FFmpeg can be combined with a number of external libraries, which sometimes
 affect the licensing of binaries resulting from the combination.
 
-compatible libraries
---------------------
+### Compatible libraries
 
 The following libraries are under GPL:
 - frei0r
@@ -101,13 +102,17 @@ license is incompatible with the LGPL v2.1 and the GPL v2, but not with
 version 3 of those licenses. So to combine these libraries with FFmpeg, the
 license version needs to be upgraded by passing `--enable-version3` to configure.
 
-incompatible libraries
-----------------------
+### Incompatible libraries
 
-The Fraunhofer AAC library and FAAC are under licenses which
+The FAAC and Fraunhofer AAC libraries are under licenses which
 are incompatible with the GPLv2 and v3. We do not know for certain if their
 licenses are compatible with the LGPL.
-If you wish to enable these libraries, pass `--enable-nonfree` to configure.
+
+The OpenSSL library is under a license which is incompatible with the GPL but
+may be compatible with the LGPL.
+
+If you wish to enable these libraries, even in circumstances that their
+license may be incompatible, pass `--enable-nonfree` to configure.
 But note that if you enable any of these libraries the resulting binary will
 be under a complex license mix that is more restrictive than the LGPL and that
 may result in additional obligations. It is possible that these
-- 
2.1.4



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