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#!/bin/bash
checking() {
printf "checking for %s... " "$1" >&2
}
check() {
checking "$1"
var="${VAR:-${1^^}}"
cmd="${!var}"
: ${cmd:=${1}}
shift
varflags="${var}FLAGS"
varflags="$@ ${!varflags}"
get=$(command -v "${cmd}")
e=$?
if [[ -n "$get" ]]; then
if [[ -z "$NO_RUN" ]]; then
${get} -h >/dev/null 2>&1
e=$?
if (( $e )); then
echo unusable, returned $e
return $e
fi
fi
declare -g "$var=$get"
echo ${get}
# intentionally stripping whitespace
echo ${var} := ${get} ${varflags} >> "${OUT}" || exit 1
else
echo no
fi
return $e
}
rcheck() {
check "$@" || exit
}
fcheck() {
for f in $3; do
checking "$f $1 support in ffmpeg"
if grep -Eq "^ $2 $f " <<< "$4"; then
echo yes
else
echo no
exit 1
fi
done
}
OUT=Makefile.inc
> "${OUT}" || exit 1
VAR=GZIP check zopfli || rcheck gzip -9
NO_RUN=1 rcheck apngasm
rcheck convert
rcheck cwebp -quiet -alpha_cleanup -m 6
rcheck ffmpeg -v warning -y
F=$($FFMPEG -formats 2>&1)
fcheck demuxing "D." "matroska,webm ogg wav yuv4mpegpipe" "$F"
fcheck muxing ".E" "ipod mp4 ogg wav webm yuv4mpegpipe" "$F"
fcheck decoding ".{6}" "mpeg4 rawvideo pcm_s16le vorbis" "$($FFMPEG -decoders 2>&1)"
fcheck encoding ".{6}" "libx264 rawvideo libtheora libvpx libvpx-vp9 libfdk_aac libopus pcm_s16le" "$($FFMPEG -encoders 2>&1)"
rcheck npm --quiet
rcheck webpmux
NO_RUN=1 check defluff
check pngquant
check zopflipng
exit 0
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