GopherProxy

	tExpand tabs in html version - adamsgaard.dk - my academic webpage
	git clone git://src.adamsgaard.dk/adamsgaard.dk
	Log
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	README
	LICENSE
	---
	commit f6af7728fcf842ad22da976b07d3cc67fc704240
	parent 7fe6c041fbd322d068731a87e3962cc39c1d3db8
	Author: Anders Damsgaard <[email protected]>
	Date: Tue, 24 Mar 2020 19:25:35 +0100

	Expand tabs in html version

	Diffstat:
	M pages/004-screencasts.html \| 98 ++++++++++++++++-------------…

	1 file changed, 49 insertions(+), 49 deletions(-)
	---
	diff --git a/pages/004-screencasts.html b/pages/004-screencasts.html
	t@@ -20,37 +20,37 @@ and stopping recording:</p>
	lockfile=/tmp/screenrecord.pid

	startrecording() {
	- out="$HOME/screenrecord-$(date '+%Y-%m-%d_%H:%M:%S').mkv"
	- ffmpeg -y \
	- -f x11grab \
	- -framerate 60 \
	- -s "$(xdpyinfo \| grep dimensions \| awk '{print $2}')" \
	- -i $DISPLAY \
	- -f sndio -i default \
	- -r 30 \
	- -c:v libx264rgb -crf 0 -preset ultrafast -c:a flac \
	- "$out" >/dev/null 2>&1 &
	- printf '%s' "$!" > "$lockfile"
	-
	- sleep 1
	- if [ ! -f "$out" ]; then
	- echo 'error: ffmpeg recording did not start' >&2
	- notify-send -u CRITICAL "${0##*/}" 'ffmpeg recording did not s…
	- rm -f "$lockfile"
	- exit 1
	- fi
	+ out="$HOME/screenrecord-$(date '+%Y-%m-%d_%H:%M:%S').mkv"
	+ ffmpeg -y \
	+ -f x11grab \
	+ -framerate 60 \
	+ -s "$(xdpyinfo \| grep dimensions \| awk '{print $2}')" \
	+ -i $DISPLAY \
	+ -f sndio -i default \
	+ -r 30 \
	+ -c:v libx264rgb -crf 0 -preset ultrafast -c:a flac \
	+ "$out" >/dev/null 2>&1 &
	+ printf '%s' "$!" > "$lockfile"
	+
	+ sleep 1
	+ if [ ! -f "$out" ]; then
	+ echo 'error: ffmpeg recording did not start' >&2
	+ notify-send -u CRITICAL "${0##*/}" 'ffmpeg recording did not start'
	+ rm -f "$lockfile"
	+ exit 1
	+ fi
	}

	stoprecording() {
	- kill "$(cat "$lockfile")"
	- rm -f "$lockfile"
	- notify-send "${0##*/}" 'recording ended'
	+ kill "$(cat "$lockfile")"
	+ rm -f "$lockfile"
	+ notify-send "${0##*/}" 'recording ended'
	}

	if [ -f "$lockfile" ]; then
	- stoprecording
	+ stoprecording
	else
	- startrecording
	+ startrecording
	fi
	</code></pre>

	t@@ -73,9 +73,9 @@ The following script toggles the video feed:<p>
	<pre><code>#!/bin/sh
	# remember to `chown $USER /dev/video0`
	if pgrep video >/dev/null 2>&1; then
	- pkill video
	+ pkill video
	else
	- nohup video -s 320 >/dev/null 2>&1 &
	+ nohup video -s 320 >/dev/null 2>&1 &
	fi
	</code></pre>

	t@@ -97,14 +97,14 @@ concievable loss in quality:</p>
	<pre><code>#!/bin/sh

	encode() {
	- ffmpeg -y -i "$1" \
	- -c:v libx264 -threads 0 -preset faster -pix_fmt yuv420p \
	- -c:a aac -crf 10 \
	- "${1%.*}_out.mp4"
	+ ffmpeg -y -i "$1" \
	+ -c:v libx264 -threads 0 -preset faster -pix_fmt yuv420p \
	+ -c:a aac -crf 10 \
	+ "${1%.*}_out.mp4"
	}

	for f in "$@"; do
	- encode "$f"
	+ encode "$f"
	done
	</code></pre>

	t@@ -115,30 +115,30 @@ encounter when recording on my laptop:</p>
	<pre><code>#!/bin/sh

	synchronize() {
	- ffmpeg -y -i "$1" \
	- -itsoffset 0.300 \
	- -i "$1" \
	- -map 0:v -map 1:a \
	- -c copy \
	- "${1%.}_out.${1##.}"
	+ ffmpeg -y -i "$1" \
	+ -itsoffset 0.300 \
	+ -i "$1" \
	+ -map 0:v -map 1:a \
	+ -c copy \
	+ "${1%.}_out.${1##.}"
	}

	for f in "$@"; do
	- synchronize "$f"
	+ synchronize "$f"
	done
	</code></pre>

	<figure class="pagefigure">
	- <video poster="video/screencast.jpg" style="object-fit:fill;"
	- controls preload="none" class="mediaframe">
	- <source src="video/screencast.webm" type="video/webm">
	- <source src="video/screencast.ogv" type="video/ogg">
	- <source src="video/screencast.mp4" type="video/mp4">
	- <a href="video/screencast.mp4">Link</a>
	- </video>
	- <figcaption>
	- Example screen recording using ffmpeg(1) and video(1)
	- with the above scripts.
	- </figcaption>
	+ <video poster="video/screencast.jpg" style="object-fit:fill;"
	+ controls preload="none" class="mediaframe">
	+ <source src="video/screencast.webm" type="video/webm">
	+ <source src="video/screencast.ogv" type="video/ogg">
	+ <source src="video/screencast.mp4" type="video/mp4">
	+ <a href="video/screencast.mp4">Link</a>
	+ </video>
	+ <figcaption>
	+ Example screen recording using ffmpeg(1) and video(1)
	+ with the above scripts.
	+ </figcaption>
	</figure>