#!/bin/sh
-
+#
# gst-screencast - screencasting of a window using GStreamer
#
-# Copyright (C) 2015 Antonio Ospite <ao2@ao2.it>
+# Copyright (C) 2015-2017 Antonio Ospite <ao2@ao2.it>
+#
+# 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 2 of the License, or
+# (at your option) any later version.
#
-# This program is free software. It comes without any warranty, to
-# the extent permitted by applicable law. You can redistribute it
-# and/or modify it under the terms of the Do What The Fuck You Want
-# To Public License, Version 2, as published by Sam Hocevar. See
-# http://sam.zoy.org/wtfpl/COPYING for more details.
+# 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
-set -x
-[ "x" = "x$1" ] && { echo "usage: $(basename $0) <output_file> [<ximagesrc_options>]" 1>&2; exit 1; }
+usage() {
+ cat <<EOF
+usage: $(basename $0) [OPTIONS] <output_file> [<ximagesrc_options>]
+
+Screencast script based on GStreamer.
+
+Options:
+ --audio record audio from pulsesrc
+ --frame include the window manager border, without the shadows
+ --pointer capture the mouse pointer
+ --single-shot capture a single snapshot as a PNG instead of a video
+ -h, --help display this usage message and exit
+
+EOF
+}
+
+CAPTURE_AUDIO=0
+WINDOW_FRAME=0
+SHOW_POINTER=0
+SINGLE_SHOT=0
+
+while [ $# -gt 0 ];
+do
+ case "$1" in
+ -h|--help)
+ usage
+ exit 0
+ ;;
+ --audio)
+ CAPTURE_AUDIO=1
+ ;;
+ --frame)
+ WINDOW_FRAME=1
+ ;;
+ --pointer)
+ SHOW_POINTER=1
+ ;;
+ --single-shot)
+ SINGLE_SHOT=1
+ ;;
+ -*)
+ echo "Error: Unknown option '${1}'" 1>&2
+ ;;
+ *)
+ break;
+ esac
+ shift
+done
-[ -f "$1" ] && { echo "ERROR: file already exists!" 1>&2; exit 2; }
+[ "x" = "x$1" ] && { usage 1>&2; exit 1; }
+
+[ -f "$1" ] && { echo "Error: file '${1}' already exists!" 1>&2; exit 2; }
FILENAME="$1"
if [ "x" = "x$2" ];
then
- # uncomment to capure the whole frame with window manager border and decorations
- XWININFO_OPTIONS="-frame"
+ SHADOW_SIZE=0
+ SHADOW_X_OFFSET=0
+ SHADOW_Y_OFFSET=0
+ if [ $WINDOW_FRAME -eq 1 ];
+ then
+ XWININFO_OPTIONS="-frame"
- WIN_INFO="$(xwininfo $XWININFO_OPTIONS)"
+ # XXX the values below are still hardcoded, they may be different
+ # depending on the theme and the window manager.
+ SHADOW_SIZE=26
+ SHADOW_X_OFFSET=0
+ SHADOW_Y_OFFSET=3
+ fi
- #XID=$(echo "$WIN_INFO" | grep "Window id" | cut -d ' ' -f 4)
- #XIMAGESRC_ARGS="xid=$XID"
+ WIN_INFO="$(xwininfo $XWININFO_OPTIONS)"
X=$(echo "$WIN_INFO" | sed -n -e "/^[[:space:]]*Absolute upper-left X:[[:space:]]*/s///p")
Y=$(echo "$WIN_INFO" | sed -n -e "/^[[:space:]]*Absolute upper-left Y:[[:space:]]*/s///p")
WIDTH=$(echo "$WIN_INFO" | sed -n -e "/^[[:space:]]*Width:[[:space:]]*/s///p")
HEIGHT=$(echo "$WIN_INFO" | sed -n -e "/^[[:space:]]*Height:[[:space:]]*/s///p")
- BORDER_SIZE=27
- XIMAGESRC_ARGS="startx=$(($X - $BORDER_SIZE)) starty=$(($Y - $BORDER_SIZE)) endx=$(($X + $WIDTH + $BORDER_SIZE)) endy=$(($Y + $HEIGHT + $BORDER_SIZE))"
-
- XIMAGESRC_ARGS="startx=$(($X - $BORDER_SIZE - 1)) starty=$(($Y - $BORDER_SIZE - 7)) endx=$(($X + $WIDTH + $BORDER_SIZE)) endy=$(($Y + $HEIGHT + $BORDER_SIZE + 7))"
+ XIMAGESRC_ARGS="startx=$(($X + $SHADOW_SIZE - $SHADOW_X_OFFSET)) starty=$(($Y + $SHADOW_SIZE - $SHADOW_Y_OFFSET)) endx=$(($X + $WIDTH - 1 - $SHADOW_SIZE - $SHADOW_X_OFFSET)) endy=$(($Y + $HEIGHT - 1 - $SHADOW_SIZE - $SHADOW_Y_OFFSET))"
else
XIMAGESRC_ARGS="$2"
fi
-VIDEO_CODEC="video/x-raw,format=I420 ! jpegenc quality=90"
-#VIDEO_CODEC="openjpegenc"
+if [ $SINGLE_SHOT -eq 1 ];
+then
+ gst-launch-1.0 -v \
+ ximagesrc use-damage=0 show-pointer=$SHOW_POINTER $XIMAGESRC_ARGS num-buffers=1 ! \
+ videoconvert ! pngenc ! filesink location="$FILENAME"
+else
+ VIDEO_CODEC="video/x-raw,format=I420 ! jpegenc quality=90"
-gst-launch-1.0 -v \
- ximagesrc use-damage=0 show-pointer=0 $XIMAGESRC_ARGS ! video/x-raw,framerate=25/1 ! \
- videoconvert ! videorate ! $VIDEO_CODEC ! queue ! mux. \
- matroskamux name=mux ! filesink location="$FILENAME"
- #pulsesrc ! audioconvert ! 'audio/x-raw,rate=44100,channels=2' ! queue ! mux. \
+ if [ $CAPTURE_AUDIO -eq 1 ];
+ then
+ AUDIO_PIPELINE="pulsesrc ! audioconvert ! audio/x-raw,rate=44100,channels=2 ! queue ! mux."
+ fi
+
+ gst-launch-1.0 -v \
+ matroskamux name=mux ! filesink location="$FILENAME" \
+ ximagesrc use-damage=0 show-pointer=$SHOW_POINTER $XIMAGESRC_ARGS ! video/x-raw,framerate=25/1 ! \
+ videoconvert ! videorate ! $VIDEO_CODEC ! queue ! mux. \
+ $AUDIO_PIPELINE
+fi
projects / experiments / gstreamer.git / blobdiff