ffmpeg/tests/lavfi-regression.sh

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#!/bin/sh
#
# automatic regression test for libavfilter
#
#
#set -x
set -e
. $(dirname $0)/regression-funcs.sh
eval do_$test=y
rm -f "$logfile"
rm -f "$benchfile"
get_common_elements() (
for elt1 in $1; do
for elt2 in $2; do
[ $elt1 = $elt2 ] && res="$res $elt1 "
done
done
echo $res
)
# Returns the elements present in $1 but not in $2.
get_exclusive_elements() (
for elt1 in $1; do
common=""
for elt2 in $2; do
[ $elt1 = $elt2 ] && common="true" && break;
done
[ -z "$common" ] && res="$res $elt1"
done
echo $res
)
do_lavfi() {
test_name=$1
eval test=\$do_$test_name
vfilters="slicify=random,$2"
if [ -n "$test" ] ; then
do_video_encoding ${test_name}.nut "" "-vcodec rawvideo -vf $vfilters"
fi
}
do_lavfi "crop" "crop=100:100"
do_lavfi "crop_scale" "crop=100:100,scale=400:-1"
do_lavfi "crop_scale_vflip" "null,null,crop=200:200,crop=20:20,scale=200:200,scale=250:250,vflip,vflip,null,scale=200:200,crop=100:100,vflip,scale=200:200,null,vflip,crop=100:100,null"
do_lavfi "crop_vflip" "crop=100:100,vflip"
do_lavfi "null" "null"
do_lavfi "scale200" "scale=200:200"
do_lavfi "scale500" "scale=500:500"
do_lavfi "vflip" "vflip"
do_lavfi "vflip_crop" "vflip,crop=100:100"
do_lavfi "vflip_vflip" "vflip,vflip"
# all these filters have exactly one input and exactly one output
filters_args="
crop=100:100:100:100
null
pad=500:400:20:20
scale=200:100
vflip
"
if [ -n "$do_lavfi_pix_fmts" ]; then
# exclude pixel formats which are not supported as input
excluded_pix_fmts="$(ffmpeg -pix_fmts list 2>/dev/null | sed -ne '9,$p' | grep '^\..\.' | cut -d' ' -f2)"
scale_out_pix_fmts=$(tools/lavfi-showfiltfmts scale | grep "^OUTPUT" | cut -d: -f2)
scale_out_pix_fmts=$(get_exclusive_elements "$scale_out_pix_fmts" "$excluded_pix_fmts")
for filter_args in $filters_args; do
filter=$(echo $filter_args | sed -e 's/\([^=]\+\)=.*/\1/')
in_pix_fmts=$(tools/lavfi-showfiltfmts $filter | grep "^INPUT" | cut -d: -f2)
pix_fmts=$(get_common_elements "$in_pix_fmts" "$scale_out_pix_fmts")
for pix_fmt in $pix_fmts; do
do_video_encoding "${pix_fmt}-${filter}.nut" "" \
"-vf slicify=random,format=$pix_fmt,$filter_args -vcodec rawvideo -pix_fmt $pix_fmt"
done
done
fi
# TODO: add tests for
# direct rendering,
# chains with feedback loops
rm -f "$bench" "$bench2"