Add screencast, webmconvert to alias.sh

.scripts/alias.sh

@@ -1,5 +1,9 @@
 #!/bin/sh
 
+depend() {
+	pactree -u -d 1 "$1" | tail -n +2 | sort
+}
+
 emacs() {
 	# Create new frame if (there isnt one || no file specified)
 	if [ -z "$(pgrep emacsclient)" ] || [ "$1" = "" ]; then
@@ -9,8 +13,14 @@ emacs() {
 	fi
 }
 
-depend() {
-	pactree -u -d 1 "$1" | tail -n +2 | sort
+# $1 = find, $2 = list, $3 = list separator
+in_list() {
+	[ -z "$1" ] || [ -z "$2" ] && return 1
+	if ! echo "$2" | awk -v m="^$1$" -v RS="${3:-' '}" '$0 ~ m { exit 1 }'; then
+		return 0
+	else
+		return 1
+	fi
 }
 
 java_doc() {
@@ -24,6 +34,14 @@ java_run () {
 	java -cp './out' "$1"
 }
 
+mkcd(){
+    mkdir -p "$1" && cd "$1" || exit
+}
+
+pastebin() {
+	echo "$1" | curl -F 'f:1=<-' ix.io
+}
+
 raspbian() {
 	sudo systemctl start avahi-daemon.service
 	if ! ip a show usb0 | grep -q 'inet6'; then
@@ -33,24 +51,52 @@ raspbian() {
 	sudo systemctl stop avahi-daemon.service
 }
 
-# $1 = find, $2 = list, $3 = list separator
-in_list() {
-	[ -z "$1" ] || [ -z "$2" ] && return 1
-	if ! echo "$2" | awk -v m="^$1$" -v RS="${3:-' '}" '$0 ~ m { exit 1 }'; then
-		return 0
+screencast() {
+	IS_RUNNING="$(pgrep ffmpeg)"
+	if [ "$IS_RUNNING" != "" ]; then
+		notify-send "Stopped recording.."
+		# Kill with SIGTERM, allowing finishing touches
+		pkill -15 ffmpeg
+		sleep 3
+		# Kill with SIGKILL, just in case it is still running
+		pkill -9 ffmpeg
 	else
-		return 1
+		NAME=${1:-"output"}
+		[ -n "$2" ] && AUDIO_CODEC="-c:a aac"
+		[ -n "$2" ] && AUDIO_SOURCE="-f pulse -ac 2 -i $2" # 1 = system, 2 = mic
+
+		notify-send "Started recording.."
+		ffmpeg -y \
+			-threads 4 \
+			-f x11grab \
+			-framerate 24 \
+			-s 3000x2000 \
+			-i "$DISPLAY.0" \
+			$AUDIO_SOURCE \
+			-r 24 \
+			-vf scale=1500:1000 \
+			$AUDIO_CODEC \
+			-c:v libx264 -crf 0 -preset ultrafast \
+			"$NAME.mkv" &
 	fi
 }
 
-pastebin() {
-	echo "$1" | curl -F 'f:1=<-' ix.io
-}
-
 stream() {
-	[ -z "$2" ] && QUALITY="720p" || QUALITY="$2"
+	QUALITY=${2:-"720p"}
 
 	streamlink --player mpv "https://twitch.tv/$1" "$QUALITY" > /dev/null 2>&1 &
 }
 
+webmconvert() {
+	[ "$2" = "1" ] && AUDIO="-c:a libvorbis" || AUDIO="-an"
+
+	# https://trac.ffmpeg.org/wiki/Encode/H.264
+	# https://trac.ffmpeg.org/wiki/Encode/VP8
+	# -qmin 0   (0-63, default 4, lower = better quality)
+	# -qmax 40  (qmin-63, default 63)
+	# -crf 16   (0-51, default 23, 0 = lossless)
+	# -b:v 4M
+	ffmpeg -threads 4 -i "$1" -c:v libvpx -qmin 0 -qmax 40 -crf 16 -b:v 4M "$AUDIO" "${1%.*}_convert.webm"
+}
+
 "$@"