FFmpeg 7.1.4 as built for Parallel Media Encoder (ffmpeg-7.1.4-pme.1)

This is the complete source of the FFmpeg libraries shipped in Parallel
Media Encoder (libavcodec, libavformat, libavutil, libswscale,
libswresample), licensed under the GNU LGPL version 2.1 or later (see
COPYING.LGPLv2.1 and LICENSE.md).

It is upstream FFmpeg 7.1.4 (https://ffmpeg.org/releases/ffmpeg-7.1.4.tar.xz)
with the patches in PME/patches/ already applied. Each patch's header
says what it changes and why; the files it touches are listed below.

  0001-dnxhdenc-exact-fast-rc-slice-overflow.patch
      libavcodec/dnxhdenc.h
      libavcodec/dnxhdenc.c

PME/build-ffmpeg-dnx.sh is the script that configured and built the
shipped libraries (its ./configure line lists every option). Run from a
PME checkout it downloads, patches and builds; to build this tree
directly, run that ./configure line here, then make && make install.
The same line is embedded in each shipped dylib:
  strings libavcodec.dylib | grep -- --enable

The libraries are loaded as separate dylibs from the app's
Contents/Frameworks/ folder, so a rebuilt, compatible set can replace them
(re-sign the app ad hoc afterwards: codesign --force --deep -s - <app>).
