
Recherche avancée
Médias (1)
-
Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (71)
-
MediaSPIP Core : La Configuration
9 novembre 2010, parMediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...) -
Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)
Sur d’autres sites (6754)
-
how to send audio or video by packet though udp
20 janvier 2019, par Wei Wenhow to send part of video and audio from mp4 as packet though udp from server
Client will play the part of packet resevice.import java.awt.Dimension ; import java.awt.image.BufferedImage ; import
java.io.ByteArrayOutputStream ; import java.io.IOException ; import
java.io.ObjectOutputStream ; import java.math.BigInteger ; import
java.net.DatagramPacket ; import java.net.DatagramSocket ; import
java.net.ServerSocket ; import java.net.Socket ; import
java.nio.ByteBuffer ; import java.nio.ShortBuffer ; import
java.util.ArrayList ; import java.util.Arrays ; import
javax.imageio.ImageIO ; import javax.sound.sampled.AudioFileFormat ;
import javax.sound.sampled.AudioFormat ; import javax.swing.JTextArea ;import org.bytedeco.javacv.FFmpegFrameGrabber ; import
org.bytedeco.javacv.Frame ; import
org.bytedeco.javacv.Java2DFrameConverter ;import Enum.EType.ClientState ; import View.SingleDisplayWindow ;
import java.security.InvalidKeyException ; import
java.security.NoSuchAlgorithmException ; import java.util.Timer ; import
java.util.TimerTask ; import java.util.concurrent.CountDownLatch ;
import java.util.concurrent.ExecutionException ;import javax.crypto.BadPaddingException ; import
javax.crypto.IllegalBlockSizeException ; import
javax.crypto.NoSuchPaddingException ; import
org.bytedeco.javacv.FrameGrabber ;public class SCon private final static int PORT = 8888 ;
private final JTextArea TEXT_AREA ; private volatile
SingleDisplayWindow DISPLAY ; /////private final String BD_USER_NAME, DB_PASSWORD ; private Database
database ;private boolean isRunning ;
private RSA serverRSA, clientRSA ;
private int keyIndex, typeID = 0 ; private String mediatype = "" ;
private ArrayList sHandlers ;private FileStreamingThread fileStreamingThread ; private
VideoStreamingThread videoStreamingThread ; private BroadcastThread
broadcastThread ; private ConnectThread connectThread ;private volatile static byte[] currentVideoFrame = new byte[0],
currentAudioFrame = new byte[0] ; // current image musicpublic void run() startServer() ;
isRunning = true; fileStreamingThread = new
FileStreamingThread(videoFile) ; videoStreamingThread = new
VideoStreamingThread(videoFile) ;
//CountDownLatch latch = new CountDownLatch(1) ; fileStreamingThread.start() ; videoStreamingThread.start() ;
//latch.countDown() ;broadcastThread = new BroadcastThread(); broadcastThread.start();
connectThread = new ConnectThread(); connectThread.start(); }public void stop() isRunning = false ;
try { new Socket("localhost", PORT);
} catch (IOException e) { e.printStackTrace(); }
while (fileStreamingThread.isAlive()) {
}
while (broadcastThread.isAlive()) {
}
while (connectThread.isAlive()) {
}
for (SHandler sHandler : sHandlers) { sHandler.connectionClose();
} sHandlers.clear(); DISPLAY.dispose();
TEXT_AREA.append("\nServer stop\n"); }
private class VideoStreamingThread extends Thread { privateFFmpegFrameGrabber grabber ; // Used to extract frames from video file.
private Java2DFrameConverter converter ; // Used to convert frames to
image private int curIndex ; // Current key indexpublic VideoStreamingThread(String video_file) { videoFile =
videoFile ; grabber = new FFmpegFrameGrabber(videoFile) ;
converter = new Java2DFrameConverter() ; try
grabber.restart() ;} catch (FrameGrabber.Exception e) {
e.printStackTrace(); } curIndex = keyIndex; }
public void run() { try {
while (isRunning) {
curIndex = keyIndex;
Frame frame = null;
System.out.println("v1");
if ((frame = grabber.grab()) != null) { // Grab next frame from video file
if (frame.image != null) { // image frame
BufferedImage bi = converter.convert(frame); // convert frame to image
// Convert BufferedImage to byte[]
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bi, "jpg", baos);
// Encrypt data and store as the current image of byte[] type
currentVideoFrame = ciphers[curIndex].doFinal(baos.toByteArray());
//////////////////
DISPLAY.setSize(new Dimension(bi.getWidth(), bi.getHeight()));
DISPLAY.updateImage(bi); // Display image
// Thread.sleep((long) ( 999 / grabber.getFrameRate()));
///////////////
typeID = 1;
mediatype = grabber.getFormat();
}
} else {
grabber.restart();
} // Restart when reached end of video
}
grabber.close();
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
} //catch (InterruptedException e) {e.printStackTrace(); } }
public synchronized int getCurKeyIndex() { return curIndex; }
public synchronized void getVideoFile(String video_file) {
videoFile = video_file; grabber = newFFmpegFrameGrabber(video_file) ; converter = new
Java2DFrameConverter() ;try {
grabber.release();
grabber.restart();
} catch (FrameGrabber.Exception e) {
e.printStackTrace(); } } } private class FileStreamingThread extends Thread { private FFmpegFrameGrabbergrabber ; // Used to extract frames from video file. private int
curIndex ; // Current key indexpublic FileStreamingThread(String video_file) { videoFile =
videoFile ; grabber = new FFmpegFrameGrabber(videoFile) ; try
grabber.restart() ;} catch (FrameGrabber.Exception e) {
e.printStackTrace(); } curIndex = keyIndex; }
public void run() { try {
while (isRunning) {
curIndex = keyIndex;
Frame frame = null;
System.out.println("a2");
if ((frame = grabber.grabSamples()) != null) { // Grab next frame from video file
if (frame.samples != null) { // audio frame
// Encrypt audio
ShortBuffer channelSamplesShortBuffer = (ShortBuffer) frame.samples[0];
channelSamplesShortBuffer.rewind();
ByteBuffer outBuffer = ByteBuffer.allocate(channelSamplesShortBuffer.capacity() * 2);
for (int i = 0; i < channelSamplesShortBuffer.capacity(); i++) {
short val = channelSamplesShortBuffer.get(i);
outBuffer.putShort(val);
}
AudioFileFormat audiofileFormat = new AudioFileFormat(null, null, typeID);
AudioFormat audioFormat = new AudioFormat(44100, 16, 2, true, true);
//System.out.println(grabber.getSampleFormat());
// Encrypt data and store as the current audio of byte[] type
currentAudioFrame = ciphers[curIndex].doFinal(outBuffer.array());
DISPLAY.updateAudio(outBuffer.array(), grabber.getFormat()); // Display image audio
// Thread.sleep((long) (1000 / grabber.getSampleRate()));
// Thread.sleep((long) (1000 / grabber.getAudioBitrate()));
// System.out.println(grabber.getFormat());
// System.out.println("audioInputStream.getFormat() = " +grabber.getFormat()) ; // System.out.println("Sample.length
= " + grabber.length) ; // System.out.println("FrameLength :" + grabber.getFrameLength()) ; //
System.out.println("Frame Size :" + grabber.getFrameSize()) ; //
System.out.println("SampleSizeInBits :" +
grabber.getSampleSizeInBits()) ; //
System.out.println("Frame Rate : " + grabber.getFrameRate()) ; //
System.out.println("Sample Rate :" + grabber.getSampleRate()) ; //
System.out.println("Encoding :" + grabber.getEncoding()) ; //
System.out.println("Channels : " + grabber.getChannels()) ;
// AudioFormat audioFormat = new AudioFormat(grabber.getSampleRate(), grabber.getAudioBitrate(),
grabber.getAudioChannels(), true, true) ;
// DISPLAY.updateAudio(outBuffer.array(), audioFormat) ; //
Display image audio
outBuffer.clear() ;typeID = 2;
mediatype = grabber.getFormat();
}
} else {
grabber.restart();
} // Restart when reached end of video
}
grabber.close();
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
} }
public synchronized int getCurKeyIndex() { return curIndex; }
public synchronized void getVideoFile(String video_file) {
videoFile = video_file; grabber = newFFmpegFrameGrabber(video_file) ;
try {
grabber.release();
grabber.restart();
} catch (FrameGrabber.Exception e) {
e.printStackTrace(); } } }public void setVideoFile(String videoFile) this.videoFile =
videoFile ;public void setThreadFile(String video_file)
fileStreamingThread.getVideoFile(video_file) ;
videoStreamingThread.getVideoFile(video_file) ;private class BroadcastThread extends Thread public void run()
while (isRunning)
Thread.yield() ;for (int i = 0; i < sHandlers.size(); i++) {
if (sHandlers.get(i).getClientState() == ClientState.R) {
sHandlers.get(i).setClientState(ClientState.W);
BroadcastWorker workerThread = new BroadcastWorker(sHandlers.get(i));
workerThread.start();
}
} } } }private class BroadcastWorker extends Thread SHandler sHandler =
null ;public BroadcastWorker(SHandler sHandler) { this.sHandler =
sHandler ;
public void run() { try {
DatagramSocket out = new DatagramSocket(); // used to send UDP packets
while (sHandler.getClientState() == ClientState.W) {
Thread.yield();
StreamFile s = new StreamFile(typeID, currentVideoFrame, currentAudioFrame, mediatype);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
ObjectOutputStream os = new ObjectOutputStream(outputStream);
os.writeObject(s);
byte[] data = outputStream.toByteArray();
// Create and send UDP packet
DatagramPacket videoPacket = new DatagramPacket(data, data.length,
sHandler.getClientSocket().getInetAddress(),
Integer.parseInt(sHandler.getClientPort()));
out.send(videoPacket);
} } catch (IOException e) {
e.printStackTrace(); } } }private class ConnectThread extends Thread public void run()
TEXT_AREA.append("\nWaiting for clients’ connection.....\n") ;try {
ServerSocket serverSocket = new ServerSocket(PORT);
Socket clientSocket = null;
while (isRunning) {
clientSocket = serverSocket.accept();
if (isRunning) {
SHandler sHandler = new SHandler(clientSocket, serverRSA, clientRSA, sessionKeys[keyIndex],
TEXT_AREA);
sHandler.start();
sHandlers.add(sHandler);
}
}
serverSocket.close();
if (clientSocket != null) {
clientSocket.close();
}
} catch (IOException e) {
e.printStackTrace(); } } } }my audio and image not sync.
-
Trying to use ffmpeg to create slideshow from ISO-8601 named pictures. Getting output with no playable streams
19 juin 2019, par Robert EllegateI’m trying to create a slideshow of images that are irregular in dimension/orientation but all named with the same ISO-8601 date format.
I’ve normalized the filenames so they are all YYYYMMDD.jpg. I have tried using the globular pattern type for ffmpeg and various methods for inputting the files, including piping the concatenation of the files into ffmpeg.
Here are the images I’m trying to use :
$ ls *.jpg | xargs -n1 file
20190411.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 10128x3984, components 3
20190417.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10176x3952, components 3
20190424.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 12128x3840, components 3
20190429.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=upper-left, width=0], baseline, precision 8, 11104x3888, components 3
20190430.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10992x3920, components 3
20190501.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10528x3936, components 3
20190502.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10992x3792, components 3
20190508.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 11008x3808, components 3
20190515.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10416x3760, components 3
20190516.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10928x3760, components 3
20190517.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=lower-right, width=0], baseline, precision 8, 10720x3840, components 3
20190522.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6552x1688, components 3
20190523.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6572x1700, components 3
20190524.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6468x1659, components 3
20190528.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 5424x1644, components 3
20190529.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=7, model=Pixel 2 XL, height=0, manufacturer=Google, orientation=[*0*], datetime=2019:05:29 16:38:01, width=0]
20190531.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6584x1693, components 3
20190603.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6536x1690, components 3
20190604.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 5748x1618, components 3
20190606.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6196x1690, components 3
20190607.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6112x1674, components 3
20190610.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6440x1670, components 3
20190611.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6312x1694, components 3
20190612.jpg: JPEG image data, Exif standard: [TIFF image data, big-endian, direntries=4, height=0, orientation=[*0*], width=0], baseline, precision 8, 6176x1689, components 3And these are the various ffmpeg commands I’ve tried using :
cat *.jpg | ffmpeg -framerate 1/5 -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4
cat *.jpg | ffmpeg -f image2pipe -i - output.mkv
ffmpeg -framerate 1/5 -pattern_type glob -i '*.jpg' out.mp4
ffmpeg -framerate 1/5 -pattern_type glob -i '*.jpg' -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4
I’m trying to create a video that shows each image for 5 seconds in order, but I’m getting a mp4 video file with no playable streams.
-
PHP-FFMpeg Installation and Basic Usage on windows issue
7 mai 2017, par Mikyfollowing the README I installed PHP FFmpeg through Composer and I downloaded binaries from https://ffmpeg.zeranoe.com/builds/
now I’m trying to run the "Basic Usage" example :<?php
require("vendor/autoload.php");
$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open('video.mpg');
$video
->filters()
->resize(new FFMpeg\Coordinate\Dimension(320, 240))
->synchronize();
$video
->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(10))
->save('frame.jpg');
$video
->save(new FFMpeg\Format\Video\X264(), 'export-x264.mp4')
->save(new FFMpeg\Format\Video\WMV(), 'export-wmv.wmv')
->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');
?>but i receive "Executable not found" errors because I didn’t understand where to put them
I also tried specifying binaries ffmpeg.exe and ffprobe.exe with :
$ffmpeg = FFMpeg\FFMpeg::create(array(
'ffmpeg.binaries' => '/pathtobin/ffmpeg',
'ffprobe.binaries' => '/pathtobin/ffprobe',
'timeout' => 3600, // The timeout for the underlying process
'ffmpeg.threads' => 12 // The number of threads that FFMpeg should use
), $logger);but still same error... am I making a mountain out of a molehill ? any help is appreciated... Thanks
EDIT 1
I added ffmpeg\bin folder to system path and I can run executables from cmd from anywhere, but now I’m getting this error :
"Executable not found, proposed : avprobe, ffprobe"
...
instead, if I give binary paths explicitly, I get'ffprobe failed to execute command "C:/FFmpeg/bin/ffprobe.exe" "-help" "-loglevel" "quiet"'
what am I doing wrong ?
EDIT 2
web server config
- Windows 10 Pro
- IIS 10
- PHP 7.0.9
site root --->
C:\inetpub\wwwroot\site\
content :
index.php
input.mp4
vendor/ (PHP-FFMpeg library folder)
FFmpeg binaries --->
C:\inetpub\wwwroot\FFmpeg\
content :
ffmpeg.exe
ffplay.exe
ffprobe.exe
index.php
<?php
ini_set('display_errors', 'On'); error_reporting(E_ALL);
require("vendor/autoload.php");
$ffmpeg = FFMpeg\FFMpeg::create(array(
'ffmpeg.binaries' => 'C:/inetpub/wwwroot/FFmpeg/ffmpeg.exe',
'ffprobe.binaries' => 'C:/inetpub/wwwroot/FFmpeg/ffprobe.exe',
'timeout' => 3600, // The timeout for the underlying process
'ffmpeg.threads' => 12, // The number of threads that FFMpeg should use
));
$video = $ffmpeg->open('input.mp4');
?>result
Fatal error: Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException: ffprobe failed to execute command "C:/inetpub/wwwroot/FFmpeg/ffprobe.exe" "-help" "-loglevel" "quiet" in C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php:100 Stack trace: #0 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure('"C:/inetpub/www...') #1 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(209): Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process), Object(SplObjectStorage), false) #2 C:\inetpub\wwwroot\site\vendor\alchemy\binary-driver\src\Alchemy\BinaryDriver\AbstractBinary.php(137): Alchemy\BinaryDriver\AbstractBinary->run(Object(Symfony\Component\Process\Process), false, NULL) #3 C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php(61): Alchemy\Binary in C:\inetpub\wwwroot\site\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\FFProbe\OptionsTester.php on line 63
- Windows 10 Pro