Fast ADB screenshot helper script

adb-screenshot.sh

#!/bin/bash

set -e
set -x

SCR_FPATH="$1"
[ -z "$1" ] && echo "Missing file basename." && exit 1

[ ! -z "$2" ] && ADBDEV="$2"
[ -z "$ADBDEV"] && ADBDEV=`adb devices | grep -v 'List of' | perl -n0e '/(\S+)/; print $1'`
echo "Using ADB device '$ADBDEV'"

echo "Saving raw abd screenshot file to x.adbraw"
adb -s $ADBDEV exec-out screencap > x.adbraw
#adb -s $ADBDEV shell screencap > x.adbraw
#adb -s $ADBDEV shell screencap | perl -pe 's/\x0D\x0A/\x0A/g' > x.adbraw

echo "Info (ls, file, line 1 hexdump) about file"
ls -alh x.adbraw
file x.adbraw
hexdump -d x.adbraw | head -n 1

echo "Removing header from file to create valid rgba file $SCR_FPATH.rgba"
dd if=x.adbraw of=$SCR_FPATH.rgba skip=1 bs=12
echo "Info (file, line 1 hexdump) about $SCR_FPATH.rgba file"
file $SCR_FPATH.rgba
hexdump -d $SCR_FPATH.rgba | head -n 1

echo "Trying to parse image size"
IMGRES=`hexdump -d x.adbraw | head -n 1 | perl -ne '/^\s*\d+\s+0*(\d+?)\s+\d+\s+0*(\d+?)\s+/; print "$1x$2"'`
echo "Image size found: $IMGRES"

echo "Using convert to create png image x.png"
convert -size $IMGRES -depth 8 $SCR_FPATH.rgba x.png
mv $SCR_FPATH.rgba $SCR_FPATH.data

echo "Showing x.png with eog programm"
eog x.png