Kivy on RaspberryPi (Raspbian) - unable to load any valuable window provider

on my RaspberryPi I am using Python v3.4.3 . Recently, I (kind of successfully) managed to install Kivy v1.9.1-dev on it by the following shell commands: sudo echo "deb...

Jenkins ansible plugin can't find executable

I'm running a Jenkins on Amazon EC2--the master in a Docker container and an agent on a separate box. My playbook executes an Ansible script, using the Jenkins Ansible plugin. I had to install a...

GStreamer installation is missing a plug-in

I hope that someone can help with this problem, been searching for a solution for the past 2 days. To describe the problem in short: I'm trying to make a simple qt5.7 application that will stream...

Problems with Gst in python program

I'm in trouble making a simple server/client socket python program. Basically, my server (RPi3) has to stream a video (with Gstreamer) to the client (Fedora 24). The problem is that in my Fedora,...

Which Gstreamer in PyQt5?

On Ubuntu 16.04 and 18.04 whenever I'm trying to use QMediaPlayer I'm being prompted with no service. >>> from PyQt5 import QtMultimedia >>> qtm =...

C++ / Gstreamer - Using gst_buffer_get_reference_timestamp_meta function

I am trying to use alternative timestamp with an existing gstreamer based video acquisition code. I am not allowed to post the code and have little expertise with Gstreamer, to provide a minimal...

Memory leaking with gsteramer appsink (python bindings)

I am trying to build pipeline with appsink and it eats a lot of memory: #!/usr/bin/env python import sys import gi gi.require_version('Gst', '1.0') from gi.repository import GObject, Gst def...

gstreamer config errors Ubuntu

I am trying to build gstreamer but when running configure I get the following errors: checking for libv4l-plugin.h... yes checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at...

Gstreamer tutorial gives distorted/warped video

I am running Ubuntu (18.04.01 LTS) on a virtual machine (VMware Fusion 11.0.0) and I want to go through the first basic GStreamer tutorial. This example should play a short video from the internet...

Use vivante GPU on IMX6 with 4.14 kernel

I am working on IMX6QP with yocto rocko / Linux 4.14.24 and I am trying to use the GPU. My yocto configuration file : MACHINE ??= 'imx6qp-tx6-emmc' DL_DIR ?= "${BSPDIR}/downloads" SSTATE_DIR ?=...

Run rails-react with webpacker in production mode. assets:precompile takes very much time

I have a project on rails-react with webpacker. It works perfectly on development mode, but I cannot run it on production mode. I run it inside docker container: FROM ruby:2.5.1 # Install...

Rails & Docker: configure bundler to run bundle install in a docker build for Rails.4.2.6?

I am having so much trouble with docker. It seems to be a pattern. I have a dockerfile which installs Node.js and Yarn from source repositories fine. I install ruby from the get-apt repositories...

Qt Multimedia: Library 'gstreamer' is not defined

I have problem building QtMultimedia with GStreamer: [email protected]:~/sources/qt/build$ /usr/local/Qt-5.12.1/bin/qmake -r GST_VERSION=1.0...

How to install Python 3.6 on Ubuntu 19.04?

I've recently installed Ubuntu 19.04 which has Python 3.7 by default. I need to work on multiple projects that use Python 3.6. Is there a way to install it on Disco Dingo? I tried which works on...

Cannot load python gstreamer elements

I'm following a guide at https://mathieuduponchelle.github.io/2018-02-01-Python-Elements.html?gi-language=undefined to create a sample gstreamer element in Python. However, I can't get GStreamer...

Unmet dependencies when trying to run Alexa Voice Service on my Rasberry Pi b+

The code should com back as configuration complete, but it keeps getting stuck with this. I already made several upgrades and everything seems to be fine. [email protected]:~ $ sudo bash setup.sh...

Error while trying to play a video with Gstreamer in a Docker environment

Im building a python based video player but ran in to a issue with Gstreamer. I get a bunch of error messages when trying to play a video on a raspberry pi 3 with the 7 inch touchscreen. Im...

Yocto OpenCV w/ GStreamer installation issues

I have a simple GStreamer pipeline that I instantiate through OpenCV VideoWriter LOG_INFO("Opening VP8 GStreamer writer object at " << host << ":" << port << " with " <<...

gst-launch bogus 'no element "udpsrc"' error

The command: gst-launch udpsrc port=5000 returns: ERROR: pipeline could not be constructed: no element "udpsrc". The command: gst-launch-1.0 udpsrc uri=udp://239.194.0.177:1026 does not, and...

No ethernet access on jetson nano with custom yocto image

I've created a very minimal image for the jetson nano with the recepe: inherit core-image inherit distro_features_check REQUIRED_DISTRO_FEATURES = "x11" IMAGE_FEATURES += "package-management...

Dependencies not found for building opencv

i am trying to follow up here tutorial to build opencv so i had to install dependencies first hence i opened a terminal and type the commands but some of them gives error , which are listed...

Bundler Error - Cannot Find rake-13.0.1 even though it is installed

I have a Rails import job that run as a cron job setup through the whenever gem. It was running correctly until I recently updated the app. Now we are seeing the following Error in the logs when...

gstreamer: No such element or plugin 'v4l2sink'

The problem I am trying to execute a script. Part of it needs to execute v4l2sink. I tried to execute this gst-launch-1.0 videotestsrc ! v4l2sink device=/dev/video1 & mplayer -tv...

gstreamer: No decoder available for type 'audio/x-wav' / no suitable plugins found

I develop a Kivy Python application. It should have a sound effect. In Kivy it is simple as: from kivy.core.audio import SoundLoader ... def btn(self): sound =...

Yocto bitbake build error when adding fftw package

I am using Yocto Warrior release to build linux for Dart-imx8m SOM. Documentation can be found here : https://variwiki.com/index.php?title=DART-MX8M_Yocto&release=RELEASE_WARRIOR_V1.1_DART-MX8M. I...

how to make work opencv with FFMPEG driver

I have a camera on my linuxbox it is working well: # $ ls -al /dev/video* # crw-rw----+ 1 root video 81, 0 janv. 8 16:13 /dev/video0 # crw-rw----+ 1 root video 81, 1 janv. 8 16:13 /dev/video1 #...

GStreamer version mismatch

I needed the last GStreamer version (the 1.18.3). The thing is I'm on Ubuntu 18.04, and the default GStreamer version registered in apt is the 1.14.5. So I tried to build the version 1.18.3...

Error: Your GStreamer installation is missing a plugin: Deploying Gstreamer plugins with QML application

I am trying to create a package for a QML application which plays both audio and video and i'm stuck at GStreamer plugins. I use cqtdeployer to create this distribution package. This tool...

GStreamer pipeline + OpenCV RTSP VideoCapture does not work in Docker container

I'm trying to get GStreamer + OpenCV RTSP video capture working in a Docker container based on a NVIDIA PyTorch image. I had to end up building OpenCV from source to enable GStreamer integration,...

Cannot launch playwright chromium

I m trying to create .net 5.0 docker image with playwright, my image build properly but when i run my app using dotnet run Agent it fails on: await using var browser = await...