Andrew Ry RyAndrew

Letsrobot.tv / Run My Robot Overlay Guide

Both of these methods expect a PNG image with transparency to be the same size as your video feed ( 640x480 by default ). It is possible to blend images at different resolutions with alternate commands but beyond the scope of this document.

Static video overlay

Requires no modification to FFMPEG
Add overlayCommand and change the videoCommandLine in send_video.py:

staticOverlayCommand = '-f image2 -i /home/pi/runmyrobot/images/hud.png -filter_complex "[0:v]format=argb,geq=r=\'r(X,Y)\':g=\'g(X,Y)\':b=\'b(X,Y)\':a=\'0.7*alpha(X,Y)\'[overlay]; [1:v][overlay]overlay"'

I tried streaming with FFmpegOut in the following steps.

Modify the following lines in CameraCapture.cs

  _session = FFmpegSession.Create(
    gameObject.name,

	//souce: https://blog.logrocket.com/forget-express-js-opt-for-these-alternatives-instead/

	//usage
	parsed = await req.requestBodyJson();

	//utility fn
	function requestBodyJson(req) {
	return new Promise((resolve, reject) => {
	let body = '';

	# escape=`
	FROM mcr.microsoft.com/windows/servercore:1809-amd64

	SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]

	#https://www.apachelounge.com/download/VS16/binaries/httpd-2.4.46-win64-VS16.zip
	#https://www.apachehaus.com/downloads/httpd-2.4.46-lre323-x86-vs16.zip

	RUN C:\Windows\System32\curl --location --output vc_redist.x64.exe -A "Chrome" "https://aka.ms/vs/16/release/vc_redist.x64.exe" ; `
	Start-Process '.\vc_redist.x64.exe' '/install /passive /norestart' -Wait; `

	# escape=`
	FROM mcr.microsoft.com/windows/servercore:1809-amd64 as download

	SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]

	ENV APACHE_VERSION 2.4.46

	RUN C:\Windows\System32\curl --location --output apache.zip -A "Chrome" "https://www.apachelounge.com/download/VS16/binaries/httpd-2.4.46-win64-VS16.zip"

	RUN Expand-Archive apache.zip -DestinationPath C:\ ; `

	#!/bin/bash

	# Clear screen
	printf "\ec"
	echo -en "\ec"

	echo

	echo -e "\e[31m**************************************************"
	echo -e "\e[31m* \e[39mYou are now about to install everything needed \e[31m*"

	import mod_utils
	import hardware.motor_hat
	# Example for adding custom code to the controller

	from subprocess import Popen

	module = None

	def setup(robot_config):
	global module

	#!/bin/bash

	mkdir postgres
	cd postgres

	docker volume create --driver local --name=pgvolume
	docker volume create --driver local --name=pga4volume

	docker network create --driver bridge pgnetwork

	<?php

	echo "<PRE style=\"font-size:24px\">";

	$apiLoginId = '65M3HCNw3bp1';
	$transactionId = '2018911514592302024';
	$transactionAmount = '46.33';
	$messageString = "^{$apiLoginId}^{$transactionId}^{$transactionAmount}^";

	//Replace with your key!

	Open these urls to get the host and ports to use:
	GET https://letsrobot.tv/get_websocket_relay_host/{Camera ID Numbers Here}
	{"host":"letsrobot.tv"}

	GET https://letsrobot.tv/get_video_port/{Camera ID Numbers Here}
	{"mpeg_stream_port":661177}

	GET https://letsrobot.tv/get_audio_port/{Camera ID Numbers Here}
	{"audio_stream_port":881199}