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#!/bin/sh
#
# SPDX-License-Identifier: AGPL-3.0-or-later
#
# PASST - Plug A Simple Socket Transport
# for qemu/UNIX domain socket mode
#
# PASTA - Pack A Subtle Tap Abstraction
# for network namespace/tap device mode
#
# test/lib/video - Video grabbing, JavaScript fragments with links
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>
FFMPEG_PID_FILE="$(mktemp)"
VIDEO_START_SECONDS=
VIDEO_NAME=
VIDEO_LINKS_TEMPLATE="document.write('"'
Skip to:
'
VIDEO_LINKS_TEMPLATE_JS="
');
var video___VIDEO_NAME__links = [
"
VIDEO_LINKS_TEMPLATE_POST='];
for (var i = 0; i < video___VIDEO_NAME__links.length; i++) {
var obj = document.getElementById(video___VIDEO_NAME__links[i][0]);
obj.addEventListener("click", function(event) {
var __VIDEO_NAME___video = document.getElementById("__VIDEO_NAME___video");
var top = __VIDEO_NAME___video.offsetTop - 5;
event.preventDefault();
__VIDEO_NAME___video.play();
__VIDEO_NAME___video.pause();
for (var i = 0; i < video___VIDEO_NAME__links.length; i++) {
if (this.id == video___VIDEO_NAME__links[i][0]) {
__VIDEO_NAME___video.currentTime = video___VIDEO_NAME__links[i][1];
}
}
window.scrollTo({ top: top, behavior: "smooth" })
__VIDEO_NAME___video.play();
}, false);
}
'
VIDEO_LINKS_BUF=
VIDEO_LINKS_COUNT=0
# video_append_links() - Append generic string to JavaScript links file
video_append_links()
{
printf "${@}" >> "${BASEPATH}/${VIDEO_NAME}.js"
}
# video_append_links() - Append generic string to buffer for links
video_append_links_js()
{
VIDEO_LINKS_BUF="${VIDEO_LINKS_BUF}${@}"
}
# video_grab() - Fetch window geometry, start grabbing video
video_grab() {
VIDEO_NAME="${1}"
rm -f "${BASEPATH}/${VIDEO_NAME}.mp4" "${BASEPATH}/${VIDEO_NAME}.webm" "${BASEPATH}/${VIDEO_NAME}.js"
echo "${VIDEO_LINKS_TEMPLATE}" > "${BASEPATH}/${VIDEO_NAME}.js"
__x=$(xwininfo -id $(xdotool getactivewindow) | sed -n 's/[ ]*Absolute upper-left X:[ ]*\([0-9]*\)$/\1/p')
__y=$(xwininfo -id $(xdotool getactivewindow) | sed -n 's/[ ]*Absolute upper-left Y:[ ]*\([0-9]*\)$/\1/p')
__width=$(xwininfo -id $(xdotool getactivewindow) | sed -n 's/[ ]*Width:[ ]*\([0-9]*\)$/\1/p')
__height=$(xwininfo -id $(xdotool getactivewindow) | sed -n 's/[ ]*Height:[ ]*\([0-9]*\)$/\1/p')
[ $((__width % 2)) ] && __width=$((__width - 1))
[ $((__height % 2)) ] && __height=$((__height - 1))
sleep 3
VIDEO_START_SECONDS=$(sed -n 's/\([0-9]*\).[0-9]* [0-9]*.[0-9]*/\1/p' /proc/uptime)
ffmpeg -f x11grab -framerate 15 -video_size "${__width}x${__height}" -i "+${__x},${__y}" -vcodec libx264 -preset ultrafast -qp 0 -pix_fmt yuv444p -draw_mouse 0 "${BASEPATH}/${VIDEO_NAME}.mp4" & echo $! > "${FFMPEG_PID_FILE}"
}
# video_time_now() - Print current video timestamp, in seconds
video_time_now() {
__now=$(sed -n 's/\([0-9]*\).[0-9]* [0-9]*.[0-9]*/\1/p' /proc/uptime)
echo $((__now - VIDEO_START_SECONDS))
}
# video_stop() - Stop grabbing, finalise JavaScript templates, convert to webm
video_stop() {
sed -i 's/^.*$/&\\/g' "${BASEPATH}/${VIDEO_NAME}.js"
echo "${VIDEO_LINKS_TEMPLATE_JS}" | sed "s/__VIDEO_NAME__/${VIDEO_NAME}/g" >> "${BASEPATH}/${VIDEO_NAME}.js"
echo "${VIDEO_LINKS_BUF}" >> "${BASEPATH}/${VIDEO_NAME}.js"
echo "${VIDEO_LINKS_TEMPLATE_POST}" | sed "s/__VIDEO_NAME__/${VIDEO_NAME}/g" >> "${BASEPATH}/${VIDEO_NAME}.js"
kill -INT $(cat "${FFMPEG_PID_FILE}")
while ps -p $(cat "${FFMPEG_PID_FILE}") >/dev/null; do sleep 1; done
rm "${FFMPEG_PID_FILE}"
[ ${1} -ne 0 ] && return
ffmpeg -an -fflags +genpts -i "${BASEPATH}/${VIDEO_NAME}.mp4" -c:v libvpx-vp9 -row-mt 1 -minrate 10k -maxrate 200k -b:v 200k "${BASEPATH}/${VIDEO_NAME}.webm"
}
# video_link() - Append single link to given video chapter
video_link() {
[ ${VIDEO_LINKS_COUNT} -eq 0 ] && __sep="" || __sep=" |"
__id="video_link_${VIDEO_LINKS_COUNT}"
video_append_links "${__sep} <a id=\"${__id}\">${1}</a>"
video_append_links_js "[ '${__id}', $(($(video_time_now) - 1)) ],"
VIDEO_LINKS_COUNT=$((VIDEO_LINKS_COUNT + 1))
}
|
