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Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (104)
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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 (14209)
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audio file conversion using ffmpeg
15 juillet 2014, par user3789242I’m building a voice recording project.so far I have succeeded in recording the voice as .wav audio file, and I’m using the ffmpeg for the user to be able to convert the audio file into a selected format (mp3, pcm, wma). What I want to do is to allow the user to select the format before recording the voice so that when stop recording the file will be saved in the selected format maybe by using ffmpeg conversion.
I have been searching the net for weeks for any demo using JavaScript and html5 but can’t find any. What I have tried so far is to save the audio file in a folder using Ajax/php and I’m trying to call that file in order to convert it but this method is very complicated and is not working. Any suggestions please. If you can also help me with a demo it would be most appreciated. This is my code so far :
function handleWAV(blob) {
if (currentEditedSoundIndex !== -1) {
$('#inFile2 tr:nth-child(' + (currentEditedSoundIndex + 1) + ')').remove();
}
var url = URL.createObjectURL(blob);
var li = document.createElement('li');
var au = document.createElement('audio');
var hf = document.createElement('a');
au.controls = true;
au.src = url;
hf.href = url;
hf.download = 'audio_recording_' + new Date().getTime() + '.wav';
hf.innerHTML = hf.download;
li.appendChild(au);
li.appendChild(hf);
inFile2.appendChild(li);
fileName=hf.download;
var reader = new FileReader();
reader.onload = function(event){
var fd = new FormData();
var Name = encodeURIComponent('audio_recording_' + new Date().getTime() + '.wav');
console.log("name = " + Name);
fd.append('fname', Name);
fd.append('data', event.target.result);
$.ajax({
type: 'POST',
url: 'upload.php',
data: fd,
processData: false,
contentType: false,
success: function(data){
//console.log(data);
}
});
};
reader.readAsDataURL(blob);
var fileBuffer;
// create ffmpeg worker
function getFFMPEGWorker() {
var ffmpegWorker = new Worker('worker.js');
ffmpegWorker.addEventListener('message', function(event) {
var message = event.data;
console.log(message.type);
if (message.type === "ready" && window.File && window.FileList && window.FileReader) {
// script loaded, hide loader
} else if (message.type == "stdout") {
console.log(message.data);
} else if (message.type == "stderr") {
console.log(message.data);
} else if (message.type == "done") {
var code = message.data.code;
console.log(code);
console.log(message.data);
var outFileNames = Object.keys(message.data.outputFiles);
console.log(outFileNames);
if (code == 0 && outFileNames.length) {
var outFileName = outFileNames[0];
console.log(outFileName);
var outFileBuffer = message.data.outputFiles[outFileName];
console.log(outFileBuffer);
var src = url;
console.log(url);
$("#downloadLink2").attr('href', src);
$("#download2").show();
} else {
$("#error").show();
}
}
}, false);
return ffmpegWorker;
}
// create ffmpeg worker
var ffmpegWorker = getFFMPEGWorker();
var ffmpegRunning = false;
if (ffmpegRunning) {
ffmpegWorker.terminate();
ffmpegWorker = getFFMPEGWorker();
}
ffmpegRunning = true;
// hide download div
$("#download2").hide();
// change download file name
var fileNameExt = fileName.substr(fileName.lastIndexOf('.') + 1);
var outFileName = fileName.substr(0, fileName.lastIndexOf('.')) + "." + getOutFormat();
$("#downloadLink2").attr("download2", outFileName);
$("#downloadLink2").text(outFileName);
var arguments = [];
arguments.push("-i");
arguments.push(fileName);
arguments.push("-b:a");
arguments.push(getBitrate());
switch (getOutFormat()) {
case "mp3":
arguments.push("-acodec");
arguments.push("libmp3lame");
arguments.push("out.mp3");
break;
case "wma":
arguments.push("-acodec");
arguments.push("wmav1");
arguments.push("out.asf");
break;
case "pcm":
arguments.push("-f");
arguments.push("s16le");
arguments.push("-acodec");
arguments.push("pcm_s16le");
arguments.push("out.pcm");
}
ffmpegWorker.postMessage({
type: "command",
arguments: arguments,
files: [
{
"name": fileName,
"buffer": fileBuffer
}
]
});
function getOutFormat() {
return $('input[name=format]:checked').val();
}
function getBitrate() {
return $('input[name=bitrate]:checked').val();
}
function readInputFile(file) {
// load file content
var reader = new FileReader();
reader.onload = function(e) {
fileName = file.name;
console.log(fileName);
fileBuffer = e.target.result;
}
reader.readAsArrayBuffer(file);
}
function handleFileSelect(event) {
var files = event.target.files; // FileList object
console.log(files);
// files is a FileList of File objects. display first file name
file = files[0];
console.log(file);
if (file) {
readInputFile(file);
console.log(file);
}
}
// setup input file listeners
el=document.getElementById('inFile2');
el.addEventListener('change',handleFileSelect, true);
}This code is for the download link where the user will be able to download the audio file also the conversion function happening in it.
As I said earlier the audio files are uploaded in a folder upload using Ajax.
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c# - How to asynchronously stream output from ffmpeg
23 janvier 2017, par Piyachet KandaI created a method to call ffmpeg binaries and do stuff for me. It worked perfectly fine on a standard console application. I am trying to make a Windows Form Application version but there are few problems. The app freezes (but the progress bar is still updating) when the ffmpeg process is still running. The textboxes are not being updated. I cannot move the app window. I suspect this is because of the loop and I googled some stuff and found out that I might need to do this asynchronously but how do I do that exactly.
public void ffmpeg(string ffmpeg_exe, string args)
{
Process p = new Process();
p.StartInfo.FileName = ffmpeg_exe;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.Arguments = args;
p.StartInfo.UseShellExecute = false;
p.Start();
StreamReader reader = p.StandardError;
string line;
string size = "", current_duration = "", duration = "";
while ((line = reader.ReadLine()) != null)
{
if (!string.IsNullOrEmpty(line))
{
if (line.Contains("Duration") && line.Contains("bitrate") && line.Contains("start"))
{
duration = RemoveWhitespace(Between(line, "Duration:", ", start"));
totaltime.Text = duration;
}
if (line.Contains("frame=") && line.Contains("size=") && line.Contains("time="))
{
size = RemoveWhitespace(Between(line, "size=", " time"));
current_duration = RemoveWhitespace(Between(line, "time=", " bitrate"));
progressBar_main.Value = Convert.ToInt32(Math.Round(TimeSpan.Parse(current_duration.Substring(0, current_duration.Length -3)).TotalSeconds * 100 / TimeSpan.Parse(duration.Substring(0,duration.Length-3)).TotalSeconds, 3));
current_time.Text = current_duration;
filesize.Text = size;
}
}
}
p.Close();
current_time.Text = "";
filesize.Text = "";
totaltime.Text = "";
progressBar_main.Value = 0;
} -
FFMpeg process created from Java on CentOS doesn't exit
21 juin 2017, par DonzI need to convert a lot of wave files simultaneously. About 300 files in parallel. And new files come constantly. I use ffmpeg process call from my Java 1.8 app, which is running on CentOS. I know that I have to read error and input streams for making created process from Java possible to exit.
My code after several expirements :
private void ffmpegconverter(String fileIn, String fileOut){
String[] comand = new String[]{"ffmpeg", "-v", "-8", "-i", fileIn, "-acodec", "pcm_s16le", fileOut};
Process process = null;
BufferedReader reader = null;
try {
ProcessBuilder pb = new ProcessBuilder(comand);
pb.redirectErrorStream(true);
process = pb.start();
//Reading from error and standard output console buffer of process. Or it could halts because of nobody
//reads its buffer
reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String s;
//noinspection StatementWithEmptyBody
while ((s = reader.readLine()) != null) {
log.info(Thread.currentThread().getName() + " with fileIn " + fileIn + " and fileOut " + fileOut + " writes " + s);
//Ignored as we just need to empty the output buffer from process
}
log.info(Thread.currentThread().getName() + " ffmpeg process will be waited for");
if (process.waitFor( 10, TimeUnit.SECONDS )) {
log.info(Thread.currentThread().getName() + " ffmpeg process exited normally");
} else {
log.info(Thread.currentThread().getName() + " ffmpeg process timed out and will be killed");
}
} catch (IOException | InterruptedException e) {
log.error(Thread.currentThread().getName() + "Error during ffmpeg process executing", e);
} finally {
if (process != null) {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
log.error("Error during closing the process streams reader", e);
}
}
try {
process.getOutputStream().close();
} catch (IOException e) {
log.error("Error during closing the process output stream", e);
}
process.destroyForcibly();
log.info(Thread.currentThread().getName() + " ffmpeg process " + process + " must be dead now");
}
}
}If I run separate test with this code it goes normally. But in my app I have hundreds of RUNNING deamon threads "process reaper" which are waiting for ffmpeg process finish. In my real app ffpmeg is started from timer thread. Also I have another activity in separate threads, but I don’t think that this is the problem. Max CPU consume is about 10%.
Here is that I usual see in thread dump :
"process reaper" #454 daemon prio=10 os_prio=0 tid=0x00007f641c007000 nid=0x5247 runnable [0x00007f63ec063000]
java.lang.Thread.State: RUNNABLE
at java.lang.UNIXProcess.waitForProcessExit(Native Method)
at java.lang.UNIXProcess.lambda$initStreams$3(UNIXProcess.java:289)
at java.lang.UNIXProcess$$Lambda$32/2113551491.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)What am I doing wrong ?
UPD :
My app accepts a lot of connects with voice traffic. So I have about 300-500 another "good" threads in every moment. Could it be the reason ? Deamon threads have low priority. But I don’t beleive that they really can’t do their jobs in one hour. Ususally it takes some tens of millis.UPD2 :
My synthetic test that runs fine. I tried with new threads option and without it just with straigt calling of run method.import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
public class FFmpegConvert {
public static void main(String[] args) throws Exception {
FFmpegConvert f = new FFmpegConvert();
f.processDir(args[0], args[1], args.length > 2);
}
private void processDir(String dirPath, String dirOutPath, boolean isNewThread) {
File dir = new File(dirPath);
File dirOut = new File(dirOutPath);
if(!dirOut.exists()){
dirOut.mkdir();
}
for (int i = 0; i < 1000; i++) {
for (File f : dir.listFiles()) {
try {
System.out.println(f.getName());
FFmpegRunner fFmpegRunner = new FFmpegRunner(f.getAbsolutePath(), dirOut.getAbsolutePath() + "/" + System.currentTimeMillis() + f.getName());
if (isNewThread) {
new Thread(fFmpegRunner).start();
} else {
fFmpegRunner.run();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
class FFmpegRunner implements Runnable {
private String fileIn;
private String fileOut;
FFmpegRunner(String fileIn, String fileOut) {
this.fileIn = fileIn;
this.fileOut = fileOut;
}
@Override
public void run() {
try {
ffmpegconverter(fileIn, fileOut);
} catch (Exception e) {
e.printStackTrace();
}
}
private void ffmpegconverter(String fileIn, String fileOut) throws Exception{
String[] comand = new String[]{"ffmpeg", "-i", fileIn, "-acodec", "pcm_s16le", fileOut};
Process process = null;
try {
ProcessBuilder pb = new ProcessBuilder(comand);
pb.redirectErrorStream(true);
process = pb.start();
//Reading from error and standard output console buffer of process. Or it could halts because of nobody
//reads its buffer
BufferedReader reader =
new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
//noinspection StatementWithEmptyBody
while ((line = reader.readLine()) != null) {
System.out.println(line);
//Ignored as we just need to empty the output buffer from process
}
process.waitFor();
} catch (IOException | InterruptedException e) {
throw e;
} finally {
if (process != null)
process.destroy();
}
}
}
}UPD3 :
Sorry, I forgot to notice that I see the work of all these process - they created new converted files but anyway don’t exit.
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