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|
#!/bin/bash
# Set default options to be overriden by command line arguments.
w=400
h=325
rate=50
TEMPDIR=
unset remove_tempdir
interlaced=
aspect_ratio=
bitrate=
while getopts ":w:h:t:r:ia:b:" opt; do
case $opt in
w)
w=$OPTARG
;;
h)
h=$OPTARG
;;
t)
TEMPDIR=$OPTARG
;;
r)
rate=$OPTARG
;;
i)
interlaced=TRUE
;;
a)
aspect_ratio=$OPTARG
;;
b)
bitrate=$OPTARG
;;
\?)
echo -n "\
Error: Invalid option -$OPTARG
Usage:
test_pattern.bash [options]
-w width
The width in pixels.
-h height
The height in pixels.
-t tempdir
Temporary directory for intermediate files. If no directory is specified, one is created and deleted at the end of processing.
-r fieldrate
-i
Generate an interlaced test pattern
-a n:m
Aspect ratio of generated video.
-b bitrate
Bitrate used for encoding.
Example:
test_pattern.bash -w 1440 -h 1080 -t temp -r 50 -i -a 16:9 -b 12000k
"
exit 1
esac
done
if [ -z "$aspect_ratio" ] ; then
aspect_ratio="${w}:${h}"
fi
aspectx=$(echo $aspect_ratio | cut -d: -f1)
aspecty=$(echo $aspect_ratio | cut -d: -f2)
# Calculate some dimensions based on the requested size.
barw=$((w/32))
barstep=$((w/90))
barstart=$((-barw/barstep-1))
frames=$((w/2))
unity=$((h*2/27))
unitx=$((unity*aspecty*w/(aspectx*h)))
gridlw=$((unity*3/43))
echo unity=$unity
echo unitx=$unitx
nvgrid=$(((h-gridlw)/unity))
nhgrid=$(((((w-gridlw)/unitx)-1)/2*2+1))
gridstartx=$((w/2-(nhgrid*unitx+gridlw)/2-1))
gridstarty=$((h/2-(nvgrid*unity+gridlw)/2-1))
echo nvgrid=$nvgrid
echo nhgrid=$nhgrid
echo gridstartx=$gridstartx
echo gridstarty=$gridstarty
echo parsed tempdir $TEMPDIR
if [ -z "$TEMPDIR" ] ; then
TEMPDIR=$(mktemp -d --tmpdir=/tmp)
remove_tempdir=1
else
if [ ! -d "$TEMPDIR" ] ; then
mkdir $TEMPDIR
fi
fi
echo parsed tempdir $TEMPDIR $remove_tempdir
unset checker
checker=( -fill "rgb(192,192,192)" )
for ((g=-9;g<=7;g=g+2)) ; do
checker=( "${checker[@]}"
-draw
"rectangle $((w/2+g*unitx*7/10)),$((gridstarty+unity*3+gridlw)) $((w/2+(g+1)*unitx*7/10)),$((gridstarty+unity*4+gridlw))" )
done
checker=( "${checker[@]}" -fill black )
for ((g=-8;g<=8;g=g+2)) ; do
checker=( "${checker[@]}"
-draw
"rectangle $((w/2+g*unitx*7/10)),$((gridstarty+unity*3+gridlw)) $((w/2+(g+1)*unitx*7/10)),$((gridstarty+unity*4+gridlw))" )
done
unset stripe
stripe=( -fill white )
for ((g=0;g<5;g++)) ; do
startx=$((w/2+(3-g*2)*unitx))
endx=$((startx+2*unitx))
for ((x=startx;x<endx;x=x+2*(g+1))) ; do
stripe=( "${stripe[@]}"
-draw
"rectangle $x,$((gridstarty+unity*7+gridlw)) $((x+g)),$((gridstarty+unity*9+gridlw))" )
done
done
for ((g=0;g<13;g++)) ; do
stripe=( "${stripe[@]}"
-draw
"rectangle $((gridstartx+(nhgrid/2-6+g)*unitx)),$((gridstarty+unity*6+gridlw)) $((gridstartx+(nhgrid/2-6+g)*unitx+gridlw)),$((gridstarty+unity*7+gridlw-1))" )
done
convert -size ${w}x${h} xc:white \
-fill "rgb(204,204,0)" \
-draw "rectangle $((w/2-6*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2-4*unitx)),$((gridstarty+unity*6+gridlw))" \
-draw "rectangle $((w/2-6*unitx)),$((gridstarty+unity*11+gridlw)) $((w/2+6*unitx)),$((gridstarty+unity*13+gridlw))" \
-fill "rgb(0,204,204)" \
-draw "rectangle $((w/2-4*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2-2*unitx)),$((gridstarty+unity*6+gridlw))" \
-fill "rgb(0,204,0)" \
-draw "rectangle $((w/2-2*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2-0*unitx)),$((gridstarty+unity*6+gridlw))" \
-fill "rgb(204,0,204)" \
-draw "rectangle $((w/2-0*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2+2*unitx)),$((gridstarty+unity*6+gridlw))" \
-fill "rgb(204,0,0)" \
-draw "rectangle $((w/2+2*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2+4*unitx)),$((gridstarty+unity*6+gridlw))" \
-draw "rectangle $((w/2-unitx/2)),$((gridstarty+unity*11+gridlw)) $((w/2+unitx/2)),$((gridstarty+unity*13+gridlw))" \
-fill "rgb(0,0,204)" \
-draw "rectangle $((w/2+4*unitx)),$((gridstarty+unity*4+gridlw)) $((w/2+6*unitx)),$((gridstarty+unity*6+gridlw))" \
\
-fill black \
-draw "rectangle $((w/2-6*unitx)),$((gridstarty+unity*6+gridlw)) $((w/2+6*unitx)),$((gridstarty+unity*9+gridlw))" \
"${stripe[@]}" \
-fill black \
-draw "rectangle $((w/2-(unitx-gridlw)/2)),$((gridstarty+unity*5+gridlw)) $((w/2+(unitx-gridlw)/2-1)),$((gridstarty+unity*8+gridlw))" \
-fill white \
-draw "rectangle $((w/2-6*unitx)),$((h/2-gridlw/2)) $((w/2+6*unitx)),$((h/2-gridlw/2+gridlw))" \
-draw "rectangle $((w/2-gridlw/2)),$((gridstarty+unity*5+gridlw)) $((w/2-gridlw/2+gridlw)),$((gridstarty+unity*8+gridlw))" \
\
-fill "rgb(0,0,0)" \
-draw "rectangle $((w/2-6*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2-4*unitx)),$((gridstarty+unity*10+gridlw))" \
-fill "rgb(51,51,51)" \
-draw "rectangle $((w/2-4*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2-2*unitx)),$((gridstarty+unity*10+gridlw))" \
-fill "rgb(102,102,102)" \
-draw "rectangle $((w/2-2*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2-0*unitx)),$((gridstarty+unity*10+gridlw))" \
-fill "rgb(153,153,153)" \
-draw "rectangle $((w/2-0*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2+2*unitx)),$((gridstarty+unity*10+gridlw))" \
-fill "rgb(204,204,204)" \
-draw "rectangle $((w/2+2*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2+4*unitx)),$((gridstarty+unity*10+gridlw))" \
-fill "rgb(255,255,255)" \
-draw "rectangle $((w/2+4*unitx)),$((gridstarty+unity*9+gridlw)) $((w/2+6*unitx)),$((gridstarty+unity*10+gridlw))" \
\
-fill black \
-draw "rectangle $((w/2-2*unitx)),$((gridstarty+unity*1+gridlw)) $((w/2+2*unitx)),$((gridstarty+unity*2+gridlw))" \
-draw "rectangle $((w/2-6*unitx)),$((gridstarty+unity*2+gridlw)) $((w/2-3*unitx)),$((gridstarty+unity*3+gridlw))" \
-draw "rectangle $((w/2+6*unitx)),$((gridstarty+unity*2+gridlw)) $((w/2+3*unitx)),$((gridstarty+unity*3+gridlw))" \
-draw "rectangle $((gridstartx+(nhgrid/2-2)*unitx)),$((gridstarty+unity*2+gridlw)) $((gridstartx+(nhgrid/2-2)*unitx+gridlw)),$((gridstarty+unity*3+gridlw))" \
-draw "rectangle $((w/2-3*unitx+1)),$((gridstarty+unity*10+gridlw)) $((w/2+3*unitx)),$((gridstarty+unity*11+gridlw))" \
-fill white \
-draw "rectangle $((gridstartx+(nhgrid/2-2)*unitx)),$((gridstarty+unity*10+gridlw)) $((gridstartx+(nhgrid/2-2)*unitx+gridlw)),$((gridstarty+unity*11+gridlw))" \
"${checker[@]}" \
${TEMPDIR}/centre.png
convert -size ${w}x${h} xc:black \
-fill white \
-draw "ellipse $((w/2)),$((h/2)) $((6*unitx)),$((6*unity)) 0,360" \
${TEMPDIR}/circle.png
unset drawgrid
drawgrid=( -fill white )
for ((g=0;g<=$nhgrid;g++)) ; do
drawgrid=( "${drawgrid[@]}"
-draw
"rectangle $((gridstartx+g*unitx)),0 $((gridstartx+g*unitx+gridlw)),$h" )
done
for ((g=0;g<=$nvgrid;g++)) ; do
drawgrid=( "${drawgrid[@]}"
-draw
"rectangle 0,$((gridstarty+g*unity)) $w,$((gridstarty+g*unity+gridlw))" )
done
drawgrid=( "${drawgrid[@]}"
-draw "rectangle 0,0 $gridstartx,$h"
-draw "rectangle 0,0 $w,$gridstarty"
-draw "rectangle $w,$h $((gridstartx+nhgrid*unitx)),0"
-draw "rectangle $w,$h 0,$((gridstarty+nvgrid*unity))"
-fill black
)
for ((g=0;g<=$nhgrid;g=g+2)) ; do
drawgrid=( "${drawgrid[@]}"
-draw
"rectangle $((gridstartx+g*unitx+gridlw+1)),0 $((gridstartx+(g+1)*unitx)),$((gridstarty-1))"
-draw
"rectangle $((gridstartx+g*unitx+gridlw+1)),$((gridstarty+nvgrid*unity+gridlw+1)) $((gridstartx+(g+1)*unitx)),$h"
)
done
for ((g=0;g<=$nvgrid;g=g+2)) ; do
drawgrid=( "${drawgrid[@]}"
-draw
"rectangle 0,$((gridstarty+g*unity+gridlw+1)) $((gridstartx-1)),$((gridstarty+(g+1)*unity-1))"
-draw
"rectangle $((gridstartx+nhgrid*unitx+gridlw+1)),$((gridstarty+g*unity+gridlw+1)) $w,$((gridstarty+(g+1)*unity-1))"
)
done
diagonals=(
-fill white
-linewidth 10
-fill white
-draw "line 0,0 $((w/2)),$((h-1))"
-draw "line 0,0 $((w-1)),$((h/2))"
-draw "line 0,$((h-1)) $((w/2)),0"
-draw "line 0,$((h-1)) $((w-1)),$((h/2))"
-draw "line $((w-1)),0 $((w/2)),$((h-1))"
-draw "line $((w-1)),0 0,$((h/2))"
-draw "line $((w-1)),$((h-1)) $((w/2)),0"
-draw "line $((w-1)),$((h-1)) 0,$((h/2))" )
convert -size ${w}x${h} xc:grey50 \
"${diagonals[@]}" \
"${drawgrid[@]}" \
-fill "rgb(51,153,102)" \
-draw "rectangle $((gridstartx+(nhgrid/2-7)*unitx+gridlw+1)),$((gridstarty+unity+gridlw+1)) $((gridstartx+(nhgrid/2-6)*unitx-1)),$((h/2))" \
-fill "rgb(204,102,102)" \
-draw "rectangle $((gridstartx+(nhgrid/2-7)*unitx+gridlw+1)),$((h/2)) $((gridstartx+(nhgrid/2-6)*unitx-1)),$((gridstarty+unity*12-1))" \
-fill "rgb(102,102,255)" \
-draw "rectangle $((gridstartx+(nhgrid/2-6)*unitx)),$((gridstarty+unity+gridlw+1)) $((gridstartx+(nhgrid/2-5)*unitx-1)),$((gridstarty+unity*3-1))" \
-fill "rgb(153,102,0)" \
-draw "rectangle $((gridstartx+(nhgrid/2-6)*unitx)),$((gridstarty+10*unity+gridlw+1)) $((gridstartx+(nhgrid/2-5)*unitx-1)),$((gridstarty+unity*12-1))" \
-fill "rgb(128,128,0)" \
-draw "rectangle $((gridstartx+(nhgrid/2+7)*unitx+gridlw+1)),$((gridstarty+unity+gridlw+1)) $((gridstartx+(nhgrid/2+8)*unitx-1)),$((h/2))" \
-fill "rgb(102,102,255)" \
-draw "rectangle $((gridstartx+(nhgrid/2+7)*unitx+gridlw+1)),$((h/2)) $((gridstartx+(nhgrid/2+8)*unitx-1)),$((gridstarty+unity*12-1))" \
-fill "rgb(102,102,255)" \
-draw "rectangle $((gridstartx+(nhgrid/2+6)*unitx+gridlw+1)),$((gridstarty+unity+gridlw+1)) $((gridstartx+(nhgrid/2+7)*unitx+gridlw)),$((gridstarty+unity*3-1))" \
-fill "rgb(153,102,0)" \
-draw "rectangle $((gridstartx+(nhgrid/2+6)*unitx+gridlw+1)),$((gridstarty+10*unity+gridlw+1)) $((gridstartx+(nhgrid/2+7)*unitx+gridlw)),$((gridstarty+unity*12-1))" \
${TEMPDIR}/grid.png
convert -size ${w}x${h} ${TEMPDIR}/grid.png ${TEMPDIR}/centre.png ${TEMPDIR}/circle.png -composite ${TEMPDIR}/background.png
if [ -n "$interlaced" ] ; then
interlaced_frame=0
convert -size 1x${h} -tile-offset +0+1 pattern:gray50 \
-scale ${w}x${h}\! ${TEMPDIR}/interlace.png
fi
for ((i=0; i < $frames; i++)) ; do
prev_image_name=$image_name
image_name=${TEMPDIR}/test$(printf "%03d" $i).png
echo creating image $image_name
convert -size ${w}x${h} ${TEMPDIR}/background.png \
-fill black \
-draw "rectangle $(((barstart+i)*barstep)),0 $(((barstart+i)*barstep+barw)),${h}" \
-font Arial-Black-Regular \
-pointsize $unity \
-fill white \
-stroke black -strokewidth 5 -annotate +$((w-2*i))+$((gridstartx+11*unity)) 'Judder Test' \
-stroke none -annotate +$((w-2*i))+$((gridstartx+11*unity)) 'Judder Test' \
-depth 8 \
${image_name}
if [ -n "$interlaced" ] ; then
interlaced_frame=$((interlaced_frame + 1))
if [ $interlaced_frame = 2 ] ; then
echo interlacing $((i-1)) and $i
interlaced_frame=0
convert -size ${w}x${h} -depth 8 $prev_image_name $image_name ${TEMPDIR}/interlace.png -composite ${TEMPDIR}/interlaced$(printf "%03d" $((i/2))).png
fi
fi
done
bitrate_flags=
if [ -n "$bitrate" ] ; then
bitrate_flags="-b $bitrate"
fi
if [ -n "$interlaced" ] ; then
ffmpeg -r ${rate} -i ${TEMPDIR}/interlaced%03d.png -r ${rate} \
-vcodec mpeg2video -flags +ilme+ildct -aspect $aspect_ratio \
${bitrate_flags} -y test.mpg
else
ffmpeg -r ${rate} -i ${TEMPDIR}/test%03d.png -r ${rate} \
-vcodec mpeg2video -aspect $aspect_ratio \
${bitrate_flags} -y test.mpg
fi
if [ -n "$remove_tempdir" ] ; then
rm -Rf $TEMPDIR
fi
|
