Screen Record for Android

getdeviceart.sh

#! /bin/bash

mkdir -p ./backgrounds


function get_google_device_art {
  local device=$1
  # Get the Google Device backgrounds
  curl "https://developer.android.com/distribute/marketing-tools/device-art-resources/$1/port_back.png" > "./backgrounds/$1_port_back.png"
  curl "https://developer.android.com/distribute/marketing-tools/device-art-resources/$1/port_fore.png" > "./backgrounds/$1_port_fore.png"
  curl "https://developer.android.com/distribute/marketing-tools/device-art-resources/$1/port_shadow.png" > "./backgrounds/$1_port_shadow.png"
}


get_google_device_art 'nexus_5x' 
get_google_device_art 'nexus_6'
get_google_device_art 'nexus_6p'
get_google_device_art 'nexus_9'
get_google_device_art 'pixel'
get_google_device_art 'pixel_xl'
get_google_device_art 'pixel_2'
get_google_device_art 'pixel_2_xl'

screenrecord.sh

if [ -z "$1" ]; then
  shot_path=$(date +%Y-%m-%d-%H-%M-%S).mp4
else
  shot_path="$*"
fi

ffmpeg="ffmpeg"
# Get the device id lower case it.
device=$(adb shell getprop ro.product.model | sed 's/ /_/g' | tr '[:upper:]' '[:lower:]')
background_frame="./backgrounds/${device}_port_back.png"
foreground_frame="./backgrounds/${device}_port_fore.png"
shadow_frame="./backgrounds/${device}_port_shadow.png"

trap ctrl_c INT

function ctrl_c() {
  echo "** Trapped CTRL-C"
  echo "** Downloading screencast"
  sleep 2
   
  adb shell am broadcast -a com.android.systemui.demo -e command exit
  adb pull /sdcard/Movies/$shot_path .

  echo "FFMPEG Location: ${ffmpeg}"
  echo "Device frame location: ${frame}"
  echo "Device foreground location: ${forground_frame}"
  echo "Device background location: ${background_frame}"
  echo "Device shadow location: ${shadow_frame}"

  if [ -x $(which "$ffmpeg") ] && [ -e "$background_frame" ]
  then
    echo "Rendering images with background"
    $ffmpeg -y \
      -f lavfi \
      -i color=c=white:s=3840x1800 \
      -i $shadow_frame \
      -i $background_frame \
      -i $shot_path \
      -i $foreground_frame \
      -filter_complex "[1:v]scale=920:-1[shadow]; \
                      [2:v]scale=920:-1[frame]; \
                      [3:v]scale=720:-1[video]; \
                      [4:v]scale=920:-1[sheen]; \
                      [0:v][shadow]overlay=shortest=1:x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2[background]; \
                      [background][frame]overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2[phone]; \
                      [phone][video]overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2[merged]; \
                      [merged][sheen]overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2" $shot_path-frame.mp4

    $ffmpeg -y -i $shot_path-frame.mp4 -vf fps=10,scale=320:-1:flags=lanczos,palettegen $shot_path-palette.png
    $ffmpeg -i $shot_path-frame.mp4 -i $shot_path-palette.png -filter_complex "fps=30,scale=720:-1:flags=lanczos[x];[x][1:v]paletteuse" $shot_path.gif
  fi
  
  alldone
}

function setup() {
   adb shell settings put global sysui_demo_allowed 1
   adb shell am broadcast -a com.android.systemui.demo -e command network -e mobile show -e datatype lte -e level 4
   adb shell am broadcast -a com.android.systemui.demo -e command battery -e level 100 -e plugged false
   adb shell am broadcast -a com.android.systemui.demo -e command network -e wifi show -e level 4
   # Tweak this if you want the clock to changed
   adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 0440
   # Remove this if you want notifications to be availalbe
   adb shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false
   echo When finished, run: adb shell am broadcast -a com.android.systemui.demo -e command exit
}

function alldone() {
  adb shell am broadcast -a com.android.systemui.demo -e command exit
}

setup

adb shell screenrecord --bit-rate 16000000 /sdcard/Movies/$shot_path

echo "Finished"

The ADB shell commands set up demo mode so you can take the battery status etc.

The final one in the echo i think is just me being lazy not cleaning up the code as in the first version you had to run it manually.

@PaulKinlan
Hi Guys I have study your script which is very useful for my android screen recording but I have few doubts If you can clear please
1- If I am using this for a long like half an hrs, I feels device very leggy so I think its using system resources heavily.
2- I have noticed one more thing. when I ran it, Battery charging getting stopped (only charging symbol) but actually charging is happening, Why Its showing battery charging disable.
3- Here we are using android adb commands will these command works on all the android versions.
4- Why its not recording for a long time like 2 hrs or 5 hrs.
One Question
Is there any way by which we can stop android device charging in real so that device battery will not bulged.