GStreamer, how to add a delay to one of the input streams?

I created a GStreamer pipeline that takes multiple input sources: camera audio/video, a logo and a screen capture video that is received as a RTP stream). It combines these sources into one video...

CSS - Inheriting layered background images

CSS3 supports multiple background images, for example: foo { background-image: url(/i/image1.jpg), url(/i/image2.jpg); } I'd like to be able to add a secondary image to an element with a class...

A prepared statement, `WHERE .. IN(..)` query and sorting — with MySQL

Imagine we have a query: SELECT * FROM somewhere WHERE `id` IN(1,5,18,25) ORDER BY `name`; and an array of IDs to fetch: $ids = array(1,5,18,25) With prepared statements it's adviced to prepare...

Lock free doubly linked skip list

There exists tons of research on lock-free doubly linked list. Likewise, there is tons of reserach on lock-free skip lists. As best I can tell, however, nobody has managed a lock free doubly...

how to handle session in mutliple tabs in a browser in c#

I am using asp.net C# and am unable to manage sessions per multiple tabs. The scenario for my website is, USER logs in, then Selects a job and then Apply for that job, and when user applies, an...

Removing leading zeros from varchar sql developer

How would I remove the leading zeros from a number which is in the form of varchar. I have tried the following: Option 1: insert into example_table (columnName) (SELECT ...

Android Intent flags

My problem is in understanding how to correctly use intents. After googling and reading all the documentations and articles on this topic, I still cannot sort out my problem. I have two...

Generating uniform random numbers in Lua

I am working on programming a Markov chain in Lua, and one element of this requires me to uniformly generate random numbers. Here is a simplified example to illustrate my question: example =...

"Safari cannot open the page because the address is invalid" for Google Maps link

I have an iPhone 4s with iOS7 that doesn't have the Google Maps app installed on it. Whenever I try to navigate to a location link on it, it flashes an error at me that says: Cannot Open...

Xcode keep using old framework version

From the beginning of my project, I use a custom framework, let's call it "custom.framework". But there was a bug in this framework and now I want to use another version of the...

Perform multiple paired t-tests based on groups/categories

I am stuck at performing t.tests for multiple categories in Rstudio. I want to have the results of the t.test of each product type, comparing the online and offline prices. I have over 800 product...

How to change the color background of a box (level 3 header/building block of flexdashboard)?

I'm trying to build an HTML dashboard with multiple pages and all sorts of different elements using gauges, tables, charts from highcharter package, charts from ggplot2 package, images, etc. I'm...

angular d3 not rendering uniquely with *ngFor

i am trying to implement angular-d3-donut to my web application. each has one SVG(donut). so if i generate using *ngFor there'll be multiple with one SVG(donut). but problem is that, if i try...

Duplicate results when sorting using a Spring-Data pageable object on a JPA repository

I have a rest-api that returns a list of users when called. The API uses the org.springframework.data.domain.Pageable to paginate and sort the results. This works by simply passing the pageable to...

Assigning multiple tags to a resource via Azure CLI results in one big tag when using a variable

When creating VM via az cli (bash) with a list of tags. First set this variable: tags='env=qa servertype=frontend Distinct=qa-frontend25 CI=Yes DataDog:True' However when running the below command...

How to convert negative datetime.timedelta to positive datetime.timedelta value

so I have multiple time value which I wanna subtract with each other but some of the cases I receive negative timedelta how do I convert it into positive without change the actual value I tried to...

How to avoid DbContext threading issues caused by frequent HttpRequests?

I've taken over a code base from someone else. This is a web application built on Angular 8 (client) and .NET Core 3.0 (server). Brief description of the application: Frequent notifications are...

Ansible Playbook: How to run Play based on when condition?

I have a playbook with multiple plays. Here is what it looks like: - name: Play A hosts: localhost roles: - do task to get either B or C - name: Play B hosts: Host B roles: - do...

Conditional formatting of multiple columns in gt table

This is my first post, so apologies if I messed something up. I am trying to apply conditional formatting to multiple columns (comparing results for samples SampA, SampB and SampB to Limit) of a...

No cache on rust-diesel

I am using MySQL as my database, and diesel to retrieve the data. The data get updated every second from multiple end-points. The problem is while using diesel, to retrieve the data, the results I...

Pytorch says that CUDA is not available

I'm trying to run Pytorch on a laptop that I have. It's an older model but it does have an Nvidia graphics card. I realize it is probably not going to be sufficient for real machine learning but I...

React: onClick() event provides wrong cursor coordinates

please educate me on the following issue. I have a React component. On mouse button click, I'm getting the cursor position and handle that (use the onClick event). The issue happens when I...

Hive : How to flatten an array?

I have this table CREATE TABLE `dum`( `val` map<string,array<string>>) ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' STORED AS INPUTFORMAT ...

Use an ACF shortcode value that returns a url as the src for an image tag

Trying to create an image that can be reused multiple times on different pages throughout the site through it's url. Currently using ACF to create an image field on a page where the file is...

Multiple instances of Gstreamer pipeline results in video corruption?

I am trying to stream 4 videos using gstreamer. I can stream 2 videos without a problem, but when I launch the 3rd gstreamer pipeline, all 3 videos become corrupted. Could anyone tell me...

How to throw custom exception with custom values in Java?

Hello everyone I am using Spring Boot with MySQL. I have the following error when I try to find information, javax.persistence.NonUniqueResultException: query did not return a unique result:...

TypeError: Could not build a TypeSpec with type KerasTensor

I am a newbie to deep learning so while I am trying to build a Masked R-CNN model for training my Custom Dataset I am getting an error which reads: TypeError: Could not build a TypeSpec for...

How to source Terraform module hosted within Azure DevOps Repo via ssh

Looking for the correct/working way to source a Terraform module that is hosted within a private Azure DevOps git repo via SSH (see TF Docs on Git repo sourcing via ssh). It's undesirable to have...

Python selenium get "Developer Tools" →Network→Media logs

I am trying to programmatically do something that necessarily involves getting the "developer tools"→network→media logs. I will spare you the details, long story short, I need to visit...

Are periodic work requests supposed to execute immediately?

Background I have a few special cases I am trying to solve for while scheduling work. One of them involves doing work immediately and then creating a periodic work request. I found this in the...