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authorWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2017-03-01 23:22:39 (GMT)
committerWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2017-03-01 23:22:39 (GMT)
commit32aca4cd4a4de2db13665a49483d7c21601e19f3 (patch)
treea5307e71dada8dbc0d1daa803430d02d0678e6ad
parentf4f1bb259ec37c05ccaefd80126508ba26a0e666 (diff)
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a script for taking screenshots
Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
-rwxr-xr-xscreencap/screencap.sh124
1 files changed, 124 insertions, 0 deletions
diff --git a/screencap/screencap.sh b/screencap/screencap.sh
new file mode 100755
index 0000000..77fba1a
--- /dev/null
+++ b/screencap/screencap.sh
@@ -0,0 +1,124 @@
+#!/bin/sh
+#
+# Copyright (C) 2017 Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+set -e
+
+FFMEG="ffmpeg"
+ADB="adb"
+FB_PATH="/dev/graphics/fb0"
+
+TMP_FB="fb_raw"
+TMP_FB_RS="fb_raw_rs"
+RECOVERY=false
+
+print_usage () {
+ echo
+ echo "Usage: $0 [OPTIONS] -f OUTPUT.PNG"
+ echo " $0 [OPTIONS] --filename OUTPUT.PNG"
+ echo
+ echo "Options:"
+ echo "-r, --recovery Device is booted in recovery mode"
+ echo "-s, --screen-size Specify screen size (mandatory in recovery mode)"
+ echo
+}
+
+print_recovery_advice () {
+ echo "For screenshots in recovery mode, the screen size needs to be specified,"
+ echo "e.g. with \"-s 720x1280\""
+}
+
+get_screen_size () {
+ if [ -f $( $ADB shell command -v wm ) ]; then
+ echo "Screen size can't be determined. Are you in recovery mode?"
+ print_recovery_advice
+ exit 1
+ fi
+
+ SCREEN_SIZE=$( $ADB shell wm size )
+ SCREEN_SIZE=$( echo ${SCREEN_SIZE#*: } | tr -d '\r' )
+
+ echo "Screen size is $SCREEN_SIZE"
+}
+
+take_screenshot () {
+ SCREEN_SIZE_X=${SCREEN_SIZE%x*}
+ SCREEN_SIZE_Y=${SCREEN_SIZE#*x}
+
+ if [ $RECOVERY = true ]; then
+ BS=$(( $SCREEN_SIZE_X * 4 ))
+ PIX_FMT="bgr0"
+ else
+ BS=$(( $SCREEN_SIZE_X * 2 ))
+ PIX_FMT="rgb565"
+ fi
+
+ $ADB pull $FB_PATH $TMP_FB
+ dd bs=$BS count=$SCREEN_SIZE_Y if=$TMP_FB of=$TMP_FB_RS
+
+ $FFMEG -vcodec rawvideo -f rawvideo -pix_fmt $PIX_FMT -s $SCREEN_SIZE \
+ -i $TMP_FB_RS -f image2 -vcodec png $OUTFILE
+
+ # cleanup
+ rm -f $TMP_FB $TMP_FB_RS
+}
+
+while true
+do
+ case "$1" in
+ -r|--recovery)
+ RECOVERY=true
+ shift
+ ;;
+ -f|--filename)
+ OUTFILE="$2"
+ shift 2
+ ;;
+ -s|--screen-size)
+ SCREEN_SIZE="$2"
+ shift 2
+ ;;
+ "")
+ break
+ ;;
+ *)
+ echo "Unknown option"
+ print_usage
+ exit 1
+ ;;
+ esac
+done
+
+if [ "$OUTFILE" = "" ]; then
+ echo "No output file specified"
+ print_usage
+ exit 1
+fi
+
+if [ $RECOVERY = true ] && [ -f $SCREEN_SIZE ]; then
+ print_recovery_advice
+ exit 1
+fi
+
+$ADB root
+
+if [ $RECOVERY = false ] && [ -f $SCREEN_SIZE ]; then
+ get_screen_size
+fi
+
+take_screenshot
+
+echo "Finished successfully"