TESTING THIS: CURRENTLY HAS A SEGMENTATION FAULT.
CURRENTLY NOT WORKING.
This takes the ffmpeg binaries that were compiled in ffmpeg-build and
places them inside a base Alpine container with added glibc. Size
is much smaller (~56MB in this container vs ~360MB in the original
debian container vs ~129MB in an empty base debian).
docker run nachochip/ffmpeg-alpine -i INPUT -vcodec copy -acodec copy - > OUTPUT.mp4
This container uses the entrypoint="ffmpeg"
TESTING: may not work completely