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Soumettre améliorations et plugins supplémentaires
10 avril 2011Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...) -
Menus personnalisés
14 novembre 2010, parMediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
Menus créés à l’initialisation du site
Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...) -
Possibilité de déploiement en ferme
12 avril 2011, parMediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
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Announcing Matomo 4 : More security, privacy and better performance
The moment we’ve all been waiting for is here … Matomo Analytics 4 has launched !! We’re incredibly grateful for all community members and contributors who’ve helped with improvements, and our awesome team for all the fixes.
We can’t wait for you to gain greater security, privacy protection, and be able to boost your website performance. Now who’s ready ?
Minimise your business’ web data security risk
We’ve made Matomo even more secure to meet our users’ ever increasing security needs. Matomo 4 has certainly delivered on these expectations with a wide range of security enhancements and fixes across the platform :
- Support for app specific API tokens. [#6559]
- API tokens and session ids are now stored hashed in the database which means if someone can access your database they wouldn’t be able to get the actual token.
- A more secure host validation. [#16169]
- By default, you no longer can embed widgets through tokens with higher privileges. [#16264]
- Plenty of other minor security fixes.
More protection of your customer’s personal data
Matomo 4 ensures you’re compliant with data privacy laws and provides you with more ways to keep your customer’s personal data private, such as :
- The ability to automatically anonymise the referrer to avoid tracking personal data by accident. [#15426]
- The option to enforce the disabling of cookies. [#16258]
- Possibility in JavaScript tracker to turn cookies on and off at any time. [#13056]
- The option to not store any IP address at all. [#16377]
- Easily disable visits log and visitor profile feature if needed for privacy compliance [#16259]
- New segment to separate visitors who gave consent vs visitors who didn’t give consent. [#16192]
Matomo now offers PHP 8 support to users. Want to know more ? Get a detailed list of over 300 fixes and improvements in the Matomo 4 changelog.
Increased conversion rates with a focus on page performance
Our new Page Performance feature in Matomo 4 can help you increase conversion rates by showing you exactly how fast or slow your website is going, and WHY. An Akamai Online Retail Study in 2017 found that a 100-millisecond delay in website load time could underperform website conversion rates by up to 7%.
By using this new feature you can quickly identify slow pages and fix page speed issues as soon as they arise, meaning you never miss out on those valuable new sales opportunities.
Improve your Google search rankings in 2021
According to moz.com, Google’s bringing in a new ranking factor into their algorithm named Core Web Vitals, which will place greater emphasis on load speed (favouring websites that load faster). This means the slower your page loads, the worse it will rank in Google. With Matomo’s new feature, you’ll be able to optimise your pages to rank better according to the Core Web Vitals ranking factor.
Read more on how you can use this new feature : https://matomo.org/faq/how-to/how-do-i-see-page-performance-reports/
Need help upgrading Matomo ?
Read the Updating Matomo user guide or contact the Matomo experts.
Please note : It may take a while for you to receive a notice to update to Matomo 4.
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ffmpeg unbale to initialize threading in some cases
16 octobre 2020, par Sudipta RoyI am posting this again since the earlier question I posted has been closed


I have a JAVA service running in wildfly which is calling an external ffmpeg binary to convert .au files to .wav files. The actual command that is being executed is as follows :


ffmpeg -y -i INPUT.au OUTPUT.wav


It is running smoothly, except every once in a while it is creating an empty .wav file becasue of the following error :


Error: ffmpeg version c6710aa Copyright (c) 2000-2017 the FFmpeg 
developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/tmp/ffmpeg-static/target --pkg-config-flags=- 
-static --extra-cflags=-I/tmp/ffmpeg-static/target/include --extra- 
ldflags=-L/tmp/ffmpeg-static/target/lib --extra-ldexeflags=-static -- 
bindir=/tmp/ffmpeg-static/bin --enable-pic --enable-ffplay --enable- 
ffserver --enable-fontconfig --enable-frei0r --enable-gpl --enable- 
version3 --enable-libass --enable-libfribidi --enable-libfdk-aac -- 
enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb -- 
enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus -- 
enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora - 
-enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis -- 
enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 -- 
enable-libxvid --enable-libzimg --enable-nonfree --enable-openssl
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100

Input #0, ogg, from 'INPUT.au'
Duration: 00:00:34.08, start: 0.01500, bitrate: 15kb/s
Stream: #0.0: Audio: speex, 8000Hz, mono, s16, 15kb/s

[AVFilterGraph @ 0x43ec6e0] Error initializing threading.
[AVFilterGraph @ 0x43ec6e0] Error creating filter 'anull'


If I try to manually convert the file from command line, it works. A brief internet search (this) shows that it might be due to the fact that
ffmpegis unable to create threads for internal use. Can anyone please elaborate ?

The server where I am facing the problem have relatively high load. I have seen that wildfly is creating close to 1800 threads.


Thanks


P.s. I have managed to recreate the problem. Below is the code :


SystemCommandExecutor.java


import java.io.*;
 import java.util.List;
 public class SystemCommandExecutor {
 private List<string> commandInformation;
 private String adminPassword;
 private ThreadedStreamHandler inputStreamHandler;
 private ThreadedStreamHandler errorStreamHandler;

 public SystemCommandExecutor(final List<string> commandInformation)
 {
 if (commandInformation==null) throw new NullPointerException("The commandInformation is required.");
 this.commandInformation = commandInformation;
 this.adminPassword = null;
 }

 public int executeCommand()
 throws IOException, InterruptedException
 {
 int exitValue = -99;

 try
 {
 ProcessBuilder pb = new ProcessBuilder(commandInformation);
 Process process = pb.start();
 OutputStream stdOutput = process.getOutputStream();
 InputStream inputStream = process.getInputStream();
 InputStream errorStream = process.getErrorStream();
 inputStreamHandler = new ThreadedStreamHandler(inputStream, stdOutput, adminPassword);
 errorStreamHandler = new ThreadedStreamHandler(errorStream);
 inputStreamHandler.start();
 errorStreamHandler.start();
 exitValue = process.waitFor();
 inputStreamHandler.interrupt();
 errorStreamHandler.interrupt();
 inputStreamHandler.join();
 errorStreamHandler.join();
 }
 catch (IOException e)
 {
 throw e;
 }
 catch (InterruptedException e)
 {
 throw e;
 }
 finally
 {
 return exitValue;
 }
 }

 public StringBuilder getStandardOutputFromCommand()
 {
 return inputStreamHandler.getOutputBuffer();
 }

 public StringBuilder getStandardErrorFromCommand()
 {
 return errorStreamHandler.getOutputBuffer();
 }
}
</string></string>

ThreadedStreamHandler.java


import java.io.*;

class ThreadedStreamHandler extends Thread
{
 InputStream inputStream;
 String adminPassword;
 OutputStream outputStream;
 PrintWriter printWriter;
 StringBuilder outputBuffer = new StringBuilder();
 private boolean sudoIsRequested = false;

 
 ThreadedStreamHandler(InputStream inputStream)
 {
 this.inputStream = inputStream;
 }

 
 ThreadedStreamHandler(InputStream inputStream, OutputStream outputStream, String adminPassword)
 {
 this.inputStream = inputStream;
 this.outputStream = outputStream;
 this.printWriter = new PrintWriter(outputStream);
 this.adminPassword = adminPassword;
 this.sudoIsRequested = true;
 }

 public void run()
 {
 
 if (sudoIsRequested)
 {
 printWriter.println(adminPassword);
 printWriter.flush();
 }

 BufferedReader bufferedReader = null;
 try
 {
 bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
 String line = null;
 while ((line = bufferedReader.readLine()) != null)
 {
 outputBuffer.append(line + "\n");
 }
 }
 catch (IOException ioe)
 {
 ioe.printStackTrace();
 }
 catch (Throwable t)
 {
 t.printStackTrace();
 }
 finally
 {
 try
 {
 bufferedReader.close();
 }
 catch (IOException e)
 {
 // ignore this one
 }
 }
 }

 private void doSleep(long millis)
 {
 try
 {
 Thread.sleep(millis);
 }
 catch (InterruptedException e)
 {
 // ignore
 }
 }

 public StringBuilder getOutputBuffer()
 {
 return outputBuffer;
 }

}


FfmpegRunnable.java


import java.io.IOException;
import java.util.List;

public class FfmpegRunnable implements Runnable {
 private List<string> command;
 SystemCommandExecutor executor;

 public FfmpegRunnable(List<string> command) {
 this.command = command;
 this.executor = new SystemCommandExecutor(command);
 }

 @Override
 public void run() {
 try {
 int id = (int) Thread.currentThread().getId();
 int result = executor.executeCommand();
 if(result != 0) {
 StringBuilder err = executor.getStandardErrorFromCommand();
 System.out.println("[" + id + "]" + "[ERROR] " + err);
 } else {
 System.out.println("[" + id + "]" + "[SUCCESS]");
 }
 } catch (IOException e) {
 e.printStackTrace();
 } catch (InterruptedException e) {
 e.printStackTrace();
 }
 }
}
</string></string>

FfmpegMain.java


import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadPoolExecutor;
public class FfmpegMain {
 public static void main(String[] args) {
 //boolean threading = false;
 System.out.println(args[0]);
 int nrThread = Integer.parseInt(args[0]);
 boolean threading = Boolean.parseBoolean(args[1]);
 System.out.println("nrThread : " + nrThread + ", threading : " + threading);
 if(threading) {
 System.out.println("ffmpeg threading enabled");
 } else {
 System.out.println("ffmpeg threading not enabled");
 }
 ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(nrThread);
 for(int i=0; i cmd = new ArrayList<string>();
 String dest = "/tmp/OUTPUT/output_" + (Math.random()*1000) + ".wav";
 String cmdStr = "/tmp/FFMPEG/ffmpeg" + (threading ? " -threads 1 " : " ")
 + "-y -i /tmp/input.au " + dest;
 cmd.add("/bin/sh");
 cmd.add("-c");
 cmd.add(cmdStr);

 executor.submit(new FfmpegRunnable(cmd));
 }
 executor.shutdown();
 }
}
</string>

I have created a jar with the class files and run the jar from two seperate terminal with the following command


java -jar JAR.jar 40 true


Here 40 is the number of threads, simulating varous users accessing the system. Every once in a while I get above mentioned error.


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How to paint in Qt using hardware acceleration ?
19 octobre 2020, par FennecFixI need to do some quite intensive drawing processes in my appliation - I'm recording a camera and a desktop. I'm using
ffmpegto capture and encode/decode my videos. Those processes are quite fast and they working in a separate thread, but when it comes to render - perfomance drops drastically. I'm usingQLabelto display captured frames viasetPixmap()method and I see that Qt not using any GPU power even if a matrix operation, such as scaling an image to fit the window is clearly implied. Is there any way to paint images in Qt using hardware acceleration ? Or is there another ways to speed up painting process ?

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