transferring several commands from private repo

av/ffmpeg-screencapture

@@ -0,0 +1,155 @@
+#!/bin/bash
+
+_help() {
+  echo 'Commands:
+  -o [filename] -s [size] -p [pos] -r [framerate] -d [delay] -i
+  default filename: '$filename'
+  default size: '$size'
+  default pos:  '$pos'
+  default framerate:  '$framerate'
+  default delay: '$delay'
+  -i for interactive selection using "slop"
+  --shell  to record current terminal
+
+  Hit "q"  when finished!
+'
+}
+_helpexit(){
+  _help
+  exit
+}
+function animate() {
+  x0=$( tput cols )
+  pre=$( qolop eval "_qPos save; _qPos abs 1 $x0; _qCol R;" )
+  post=$( qolop eval "_qCol Z; _qPos restore;" )
+  while true; do
+    {
+      printf "%s*%s" "$pre" "$post"
+      sleep 1
+      printf "%s %s" "$pre" "$post"
+      sleep 1
+    } >&2
+  done
+}
+
+printf -v filename "grab-%(%FT%H-%M)T.mp4"
+size=$( xdpyinfo  | awk "/dimensions/{print \$2}" )
+pos="0,0"
+framerate=15
+delay=0
+interact=0
+new_shell=0
+for (( i=1; i<=$#; i++ )); do
+  [[ ${!i} = "-h"* ]] && _helpexit
+  [[ ${!i} = "--h"* ]] && _helpexit
+  [[ ${!i} = "help" ]] && _helpexit
+done
+for (( i=1; i<=$#; i++ )); do
+  j=$(( $i + 1 ))
+  if [[ ${!i} = "-o" ]]; then
+    filename="${!j}"
+    shift
+  fi
+  if [[ ${!i} = "-s" ]]; then
+    size="${!j}"
+    shift
+  fi
+  if [[ ${!i} = "-p" ]]; then
+    pos="${!j}"
+    shift
+  fi
+  if [[ ${!i} = "-r" ]]; then
+    framerate="${!j}"
+    shift
+  fi
+  if [[ ${!i} = "-d" ]]; then
+    delay="${!j}"
+    shift
+  fi
+  if [[ ${!i} = "-i" ]]; then
+    interact=1
+  fi
+  if [[ ${!i} = "--shell" ]]; then
+    new_shell=1
+  fi
+
+done
+
+if [[ $new_shell -eq 0 ]]; then
+
+  if [[ $interact -eq 1 ]]; then
+    slop=$( slop -b 10 -c 1.0,0.8,0.1,0.8 )
+    size=$( echo $slop | cut -d+ -f1 )
+    pos=$( echo $slop | cut -d+ -f2-3 )
+    pos=${pos/+/,}
+  else
+    convert -size 256x256 xc:red PNG8:- | timeout 5 feh --geometry $size+${pos//,/+} -
+  fi
+else
+   eval $(xwininfo -id $(xdotool getactivewindow) |
+    sed -n -e "s/^ \+Absolute upper-left X: \+\([0-9]\+\).*/x=\1/p" \
+           -e "s/^ \+Absolute upper-left Y: \+\([0-9]\+\).*/y=\1/p" \
+           -e "s/^ \+Width: \+\([0-9]\+\).*/w=\1/p" \
+           -e "s/^ \+Height: \+\([0-9]\+\).*/h=\1/p" )
+  size="${w}x${h}"
+  pos="${x},${y}"
+fi
+
+
+if [[ $delay -gt 0 ]]; then
+  echo Waiting.. for $delay seconds
+  sleep $delay
+fi
+
+
+echo Grabbing: $filename ${size}+$pos
+
+rm -f "$filename"
+
+if [[ $new_shell -eq 1 ]]; then
+
+  echo Starting to record in 5 seconds, or press enter
+  read -t 5 foo || true
+  x0=$( tput cols )
+  pre=$( qolop eval "_qPos save; _qPos abs 1 $x0; _qCol R;" )
+  post=$( qolop eval "_qCol Z; _qPos restore;" )
+  animate &
+  animpid=$!
+  trap 'trap - SIGTERM && kill -- $animpid' EXIT SIGINT SIGTERM
+  ffmpeg \
+  -video_size $size \
+  -framerate $framerate \
+  -f x11grab \
+  -i $DISPLAY+${pos} \
+  -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" \
+  -c:v libx264 -crf 23 -profile:v baseline -level 3.0 -pix_fmt yuv420p \
+  -an \
+  -movflags faststart \
+  -loglevel panic \
+  -hide_banner \
+  "$filename" &
+  ffpid=$!
+  clear
+  bash
+  kill -INT $ffpid
+  trap - EXIT SIGINT SIGTERM
+  kill $animpid > /dev/null 2>&1
+  #animate_clear
+  printf "%s %s" "$pre" "$post" >&2
+
+else
+  ffmpeg \
+  -video_size $size \
+  -framerate $framerate \
+  -f x11grab \
+  -i $DISPLAY+${pos} \
+  -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" \
+  -c:v libx264 -crf 23 -profile:v baseline -level 3.0 -pix_fmt yuv420p \
+  -an \
+  -movflags faststart \
+  -loglevel panic \
+  -hide_banner \
+  "$filename"
+fi
+
+echo "Saved to: $filename"