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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (102)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)
Sur d’autres sites (9698)
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How to import FFMPEG Library in my maven project ?
1er septembre 2021, par GeorgiI have a Spring-boot project, where I am using the ffmpeg library, I am executing the ffmpeg commands through a ProcessBuilder(in the terminal/cmd) and everything works fine, because I have already installed the ffmpeg on my macOS. When I try to generate a jar and run it on an another machine, where ffmpeg is not installed, it is executed, everything works fine, except the ffmpeg comamnds. Is there any change to import the library to my maven project or somehow to use it ?
Is it a good idea to add an external jar of the library ?



Thank you in advance !


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Meteor edit audio files on the server
28 décembre 2015, par Mohammed HusseinI am building a Meteor application to split uploaded audio files
I upload the audio files and store them using GridFSchild = Npm.require(’child_process’) ;
var fs = Npm.require('fs');
storagePath= fs.realpathSync(process.env.PWD+'/audio');
StaticServer.add('/audio', clipsPath);and then using a method i split the audio file using
child.exec(command) ;the command is the ffmpeg command used to cut the source audio file and store it on the storagePath
the application worked fine locally but when I tried to deploy it to digital ocian i got errors , stating that the file /audio doesnot exist
I use mupx to deploy and the error appears after "verifying deployment"here is the error
-----------------------------------STDERR-----------------------------------
eteor-dev-bundle@0.0.0 No README data
=> Starting meteor app on port:80
/bundle/bundle/programs/server/node_modules/fibers/future.js:245
throw(ex);
^
Error: ENOENT, no such file or directory '/bundle/bundle/audio'
at Object.fs.lstatSync (fs.js:691:18)
at Object.realpathSync (fs.js:1279:21)
at server/startup.js:10:20
at /bundle/bundle/programs/server/boot.js:249:5
npm WARN package.json meteor-dev-bundle@0.0.0 No description
npm WARN package.json meteor-dev-bundle@0.0.0 No repository field.
npm WARN package.json meteor-dev-bundle@0.0.0 No README data
=> Starting meteor app on port:80
/bundle/bundle/programs/server/node_modules/fibers/future.js:245
throw(ex);
^
Error: ENOENT, no such file or directory '/bundle/bundle/audio'
at Object.fs.lstatSync (fs.js:691:18)
at Object.realpathSync (fs.js:1279:21)
at server/startup.js:10:20
at /bundle/bundle/programs/server/boot.js:249:5
=> Redeploying previous version of the app
-----------------------------------STDOUT-----------------------------------
To see more logs type 'mup logs --tail=50'
----------------------------------------------------------------------------the main quistion is , how to i generate an output file using ffmpeg command and store it in a place where I can access it and display it on the browser
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Frames from Video Using OpenCV in Ubuntu with Java 17
2 août 2023, par bstrdnI've been trying to extract frames from a video using OpenCV in an Ubuntu environment with Java 17, but all my attempts have been unsuccessful so far. The main issue is that ffmpeg is not detected by the OpenCV library on ubuntu.


Here's my test code :


Main class


import org.opencv.core.Core;
import org.opencv.videoio.VideoCapture;

public class Main {
 public static String videoPath = "";
 static {
 String osName = System.getProperty("os.name").toLowerCase();
 if (osName.contains("win")) {
 System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
 videoPath = ClassLoader.getSystemResource("video.mp4").getPath();
 } else {
 videoPath = "/video.mp4";
// System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
 System.load("/usr/lib/opencv_java470.so");
 }
 }

 public static void main(String[] args) throws InterruptedException {
 VideoCapture videoCapture = new VideoCapture(videoPath);
 if (!videoCapture.isOpened()) {
 System.out.println("Error opening video file.");
 } else {
 System.out.println("Everything is fine.");
 }
 System.out.println(Core.getBuildInformation());
 Thread.sleep(1000000000000000000L);
 }
}


Maven :


<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0">
 <modelversion>4.0.0</modelversion>
 <parent>
 <groupid>org.springframework.boot</groupid>
 <artifactid>spring-boot-starter-parent</artifactid>
 <version>3.0.2</version>
 <relativepath></relativepath> 
 </parent>
 <groupid>org.example</groupid>
 <artifactid>untitled</artifactid>
 <version>1.0-SNAPSHOT</version>
 <properties>
 17
 17
 UTF-8
 </properties>

<dependencies>
<dependency>
 <groupid>org.bytedeco</groupid>
 <artifactid>opencv-platform</artifactid>
 <version>4.7.0-1.5.9</version>
</dependency>

<dependency>
 <groupid>org.springframework.boot</groupid>
 <artifactid>spring-boot-starter-web</artifactid>
</dependency>
</dependencies>
<build>
<plugins>
 <plugin>
 <groupid>org.springframework.boot</groupid>
 <artifactid>spring-boot-maven-plugin</artifactid>
 </plugin>
</plugins>
</build>
</project>


Dockerfile :


FROM ubuntu:20.04
RUN apt-get update && apt-get install -y openjdk-17-jdk
RUN apt-get update && apt-get install -y pkg-config
RUN apt-get update && apt-get install -y ffmpeg libavformat-dev libavcodec-dev libswscale-dev libavresample-dev
ENV JAVA_HOME /usr/lib/jvm/java-17-openjdk-amd64
COPY target/*.jar /app.jar
COPY src/main/resources/video.mp4 /
COPY opencv_java470.so /usr/lib
ENV JAVA_TOOL_OPTIONS="-Djava.library.path=/usr/lib:/lib:/usr/local/lib:/usr/local:/usr/lib/x86_64-linux-gnu"
ENV LD_LIBRARY_PATH=/usr/lib:/lib:/usr/local/lib:/usr/local:/usr/lib/x86_64-linux-gnu
ENTRYPOINT [ "sh", "-c", "java $JAVA_TOOL_OPTIONS -jar /app.jar" ]


The application displays the following text (video is not opened) :


Error opening video file.

2023-08-02T13:30:58.448538297Z 
2023-08-02T13:30:58.448572597Z General configuration for OpenCV 4.7.0 =====================================
2023-08-02T13:30:58.448587327Z Version control: v4.7.0
2023-08-02T13:30:58.448590607Z 
2023-08-02T13:30:58.448593217Z Platform:
2023-08-02T13:30:58.448596057Z Timestamp: 2023-03-27T23:13:34Z
2023-08-02T13:30:58.448598747Z Host: Linux 5.4.0-1103-azure x86_64
2023-08-02T13:30:58.448601377Z CMake: 3.25.2
2023-08-02T13:30:58.448604277Z CMake generator: Unix Makefiles
2023-08-02T13:30:58.448606837Z CMake build tool: /usr/bin/make
2023-08-02T13:30:58.448609327Z Configuration: RELEASE
2023-08-02T13:30:58.448611867Z 
.......there is a lot of text......
2023-08-02T13:30:58.448772865Z 
2023-08-02T13:30:58.448775355Z Video I/O:
2023-08-02T13:30:58.448777845Z DC1394: NO
2023-08-02T13:30:58.448780535Z FFMPEG: NO
2023-08-02T13:30:58.448783105Z avcodec: NO
2023-08-02T13:30:58.448785725Z avformat: NO
2023-08-02T13:30:58.448788295Z avutil: NO
2023-08-02T13:30:58.448790755Z swscale: NO
2023-08-02T13:30:58.448793295Z avresample: NO
2023-08-02T13:30:58.448795845Z GStreamer: NO
2023-08-02T13:30:58.448798255Z v4l/v4l2: YES (linux/videodev2.h)
2023-08-02T13:30:58.448800885Z 
2023-08-02T13:30:58.448803525Z Parallel framework: pthreads
2023-08-02T13:30:58.448806345Z 
............
2023-08-02T13:30:58.448859654Z Java: export all functions
2023-08-02T13:30:58.448862024Z ant: /usr/bin/ant (ver 1.10.5)
2023-08-02T13:30:58.448864504Z JNI: /opt/hostedtoolcache/jdk/8.0.362/x64/include /opt/hostedtoolcache/jdk/8.0.362/x64/include/linux /opt/hostedtoolcache/jdk/8.0.362/x64/include
2023-08-02T13:30:58.448867224Z Java wrappers: YES
2023-08-02T13:30:58.448869804Z Java tests: NO
2023-08-02T13:30:58.448872314Z 
2023-08-02T13:30:58.448874734Z Install to: /usr/local


Moreover, ffmpeg is installed on Ubuntu.


How can i fix this ? I'm deathly tired(


Thank you in advance for your assistance !


First I tried installation following the official instructions.https://github.com/bytedeco/javacv#required-software


Then the solution provided in https://stackoverflow.com/a/76750478/8087508,


but the result is the same.


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