bin/ffmpeg/INSTALL.md

## Installing FFmpeg

1. Type `./configure` to create the configuration. A list of configure
options is printed by running `configure --help`.

    `configure` can be launched from a directory different from the FFmpeg
sources to build the objects out of tree. To do this, use an absolute
path when launching `configure`, e.g. `/ffmpegdir/ffmpeg/configure`.

2. Then type `make` to build FFmpeg. GNU Make 3.81 or later is required.

3. Type `make install` to install all binaries and libraries you built.

NOTICE
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 - Non system dependencies (e.g. libx264, libvpx) are disabled by default.