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• xdotool to tab to a button on a web page and use the mouse to disable a drop down menu option

  25 juin 2023, par Mash

  I have a Bash script that open a Amazon chime meeting URL in firefox, uses XDOtool to enter a meetig participant name, and tab and mouse click functions. and next uses ffmpeg to stream the video and audio output of the Amazon chime meeting to an RTMP destination.

  


  When this is streamed, the Amazon chime web app has "More" drop down Menu. Within the Menu it has a option to disable the self view. I want to add xdotool commands to disable this self view option from the more drop down menu on the amazon chime web app page.

  


  the Amazon chime meeting URL is - https://app.chime.aws/meetings/

  


  Here is the Bash Script

  


  #!/bin/bash&#xA;BROWSER_URL=${MEETING_URL}&#xA;SCREEN_WIDTH=1920&#xA;SCREEN_HEIGHT=1080&#xA;SCREEN_RESOLUTION=${SCREEN_WIDTH}x${SCREEN_HEIGHT}&#xA;CAPTURE_SCREEN_RESOLUTION=1920x1080&#xA;COLOR_DEPTH=24&#xA;X_SERVER_NUM=2&#xA;VIDEO_BITRATE=6000&#xA;VIDEO_FRAMERATE=30&#xA;VIDEO_GOP=$((VIDEO_FRAMERATE * 2))&#xA;AUDIO_BITRATE=160k&#xA;AUDIO_SAMPLERATE=44100&#xA;AUDIO_CHANNELS=2&#xA;&#xA;# Start PulseAudio server so Firefox will have somewhere to which to send audio&#xA;pulseaudio -D --exit-idle-time=-1&#xA;pacmd load-module module-virtual-sink sink_name=v1  # Load a virtual sink as `v1`&#xA;pacmd set-default-sink v1  # Set the `v1` as the default sink device&#xA;pacmd set-default-source v1.monitor  # Set the monitor of the v1 sink to be the default source&#xA;&#xA;# Start X11 virtual framebuffer so Firefox will have somewhere to draw&#xA;Xvfb :${X_SERVER_NUM} -ac -screen 0 ${SCREEN_RESOLUTION}x${COLOR_DEPTH} > /dev/null 2>&amp;1 &amp;&#xA;export DISPLAY=:${X_SERVER_NUM}.0&#xA;sleep 0.5  # Ensure this has started before moving on&#xA;&#xA;# Create a new Firefox profile for capturing preferences for this&#xA;firefox --no-remote --new-instance --createprofile "foo4 /tmp/foo4"&#xA;&#xA;# Install the OpenH264 plugin for Firefox&#xA;mkdir -p /tmp/foo4/gmp-gmpopenh264/1.8.1.1/&#xA;pushd /tmp/foo4/gmp-gmpopenh264/1.8.1.1 >&amp; /dev/null&#xA;curl -s -O http://ciscobinary.openh264.org/openh264-linux64-2e1774ab6dc6c43debb0b5b628bdf122a391d521.zip&#xA;unzip openh264-linux64-2e1774ab6dc6c43debb0b5b628bdf122a391d521.zip&#xA;rm -f openh264-linux64-2e1774ab6dc6c43debb0b5b628bdf122a391d521.zip&#xA;popd >&amp; /dev/null&#xA;&#xA;# Set the Firefox preferences to enable automatic media playing with no user&#xA;# interaction and the use of the OpenH264 plugin.&#xA;cat &lt;<eof>> /tmp/foo4/prefs.js&#xA;user_pref("media.autoplay.default", 0);&#xA;user_pref("media.autoplay.enabled.user-gestures-needed", false);&#xA;user_pref("media.navigator.permission.disabled", true);&#xA;user_pref("media.gmp-gmpopenh264.abi", "x86_64-gcc3");&#xA;user_pref("media.gmp-gmpopenh264.lastUpdate", 1571534329);&#xA;user_pref("media.gmp-gmpopenh264.version", "1.8.1.1");&#xA;user_pref("doh-rollout.doorhanger-shown", true);&#xA;EOF&#xA;&#xA;# Start Firefox browser and point it at the URL we want to capture&#xA;#&#xA;# NB: The `--width` and `--height` arguments have to be very early in the&#xA;# argument list or else only a white screen will result in the capture for some&#xA;# reason.&#xA;firefox \&#xA;  -P foo4 \&#xA;  --width ${SCREEN_WIDTH} \&#xA;  --height ${SCREEN_HEIGHT} \&#xA;  --new-instance \&#xA;  --first-startup \&#xA;  --foreground \&#xA;  --kiosk \&#xA;  --ssb \&#xA;  "${BROWSER_URL}" \&#xA;  &amp;&#xA;sleep 10  # Ensure this has started before moving on, waiting for loading the Chime web app&#xA;xdotool key Return #Select yes for the pop-up window of "Would you like to open this link with Chime app?"&#xA;sleep 3&#xA;xdotool key Escape #Close the pop-up window&#xA;sleep 3&#xA;xdotool type Livestream #Type "Livestream" on the name input field&#xA;sleep 3&#xA;xdotool key Tab #Move to "join the meeting" button&#xA;sleep 3&#xA;xdotool key Return #Click "join the meeting" button&#xA;sleep 3&#xA;xdotool key Return #Close the pop-up window once again&#xA;sleep 3&#xA;xdotool key Escape #Close the pop-up window once again&#xA;sleep 3&#xA;xdotool key Return #Click "Use system audio" setting&#xA;sleep 3&#xA;xdotool key Escape #Close warning message&#xA;sleep 3&#xA;xdotool mousemove 1 1 click 1  # Move mouse out of the way so it doesn&#x27;t trigger the "pause" overlay on the video tile  &#xA;&#xA;# Start ffmpeg to transcode the capture from the X11 framebuffer and the&#xA;# PulseAudio virtual sound device we created earlier and send that to the RTMP&#xA;# endpoint in H.264/AAC format using a FLV container format.&#xA;#&#xA;# NB: These arguments have a very specific order. Seemingly inocuous changes in&#xA;# argument order can have pretty drastic effects, so be careful when&#xA;# adding/removing/reordering arguments here.&#xA;ffmpeg \&#xA;  -hide_banner -loglevel error \&#xA;  -nostdin \&#xA;  -s ${CAPTURE_SCREEN_RESOLUTION} \&#xA;  -r ${VIDEO_FRAMERATE} \&#xA;  -draw_mouse 0 \&#xA;  -f x11grab \&#xA;    -i ${DISPLAY} \&#xA;  -f pulse \&#xA;    -ac 2 \&#xA;    -i default \&#xA;    -vf "crop=1600:980:0:1080" \&#xA;  -c:v libx264 \&#xA;    -pix_fmt yuv420p \&#xA;    -profile:v main \&#xA;    -preset slow \&#xA;    -x264opts "nal-hrd=cbr:no-scenecut" \&#xA;    -minrate ${VIDEO_BITRATE} \&#xA;    -maxrate ${VIDEO_BITRATE} \&#xA;    -g ${VIDEO_GOP} \&#xA;  -filter_complex "aresample=async=1000:min_hard_comp=0.100000:first_pts=1" \&#xA;  -async 1 \&#xA;  -c:a aac \&#xA;    -b:a ${AUDIO_BITRATE} \&#xA;    -ac ${AUDIO_CHANNELS} \&#xA;    -ar ${AUDIO_SAMPLERATE} \&#xA;  -f flv ${RTMP_URL}``&#xA;&#xA;</eof>

  


  what i have tried so far in in the bash script

  


• Installing FFMPEG on my EC2 instance takes too long ; what am I doing wrong ? [closed]

  24 août 2023, par Shaban Khawar

  I found a good article on how to download onto my EC2 instance : link
Here's the issue. It takes forever ! It takes around 15 minutes to install.

  


  I'm running my EC2 instance on Amazon Linux 2023, so no apt-get for me.
Also my EC2 instance is created by my EB environment, so if auto-scaling occurs, my instance will be terminated and a new one will be created. I can set .ebextensions to run all the commands to install FFMPEG again but as mentioned above, it takes forever ! That means for 15-20 minutes, my server is down because of one dependancy. I feel like I'm going about this the wrong way, so any advice is appreciated.

  


• FFmpeg recorded video is dark with Xvfb and chrome headless on Centos 7

  15 juin 2023, par narsy4

  I am trying to do a video recording of headless chrome session on Centos 7 (Amazon EC2 instance) using ffmpeg. I have installed ffmpeg, Xvfb and google chrome on the machine. I started Xvfb on :99, verified the display using xdpyinfo and started chrome. However when I run the ffmpeg cmd to capture the video (no errors in ffmpeg debug logs), the output is dark with a X sign in the centre of video screen. What am I doing wrong here ? Any help is appreciated.

  


  **Xvfb and chrome commands**
Xvfb :99 -screen 0 1920x1080x24 &
export DISPLAY=:99
google-chrome --headless --disable-gpu --no-sandbox --start-maximized --window-size=1920x1080 https://www.google.com



  


  **FFmpeg command**
ffmpeg -video_size 1920x1080 -framerate 30 -f x11grab -i :99 -loglevel debug -pix_fmt yuv420p /tmp/video.mp4



  


  dark video

  


  Searched for and read a few threads on this, but couldn't get it to work.