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Médias (91)
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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Valkaama DVD Label
4 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (79)
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MediaSPIP : Modification des droits de création d’objets et de publication définitive
11 novembre 2010, parPar défaut, MediaSPIP permet de créer 5 types d’objets.
Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...) -
Les autorisations surchargées par les plugins
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autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
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Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (6176)
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Find the beginning of audio track in other audio track
26 février 2020, par Александр ПодоринI have a long audio track that contains multiple songs in one file.
I have one song in other file.
How can I find the beginning and the ending of single song in a long file ?
Can I do this with ffmpeg and how ?Thank you !
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ffmpeg audio and the iphone
17 juin 2019, par michellehas anyone been able to make ffmpeg work with audio queues, I get an error when I try to create the queue.
ret = avcodec_open(enc, codec);
if (ret < 0) {
NSLog(@"Error: Could not open video decoder: %d", ret);
av_close_input_file(avfContext);
return;
}
if (audio_index >= 0) {
AudioStreamBasicDescription
audioFormat;
audioFormat.mFormatID = -1;
audioFormat.mSampleRate =
avfContext->streams[audio_index]->codec->sample_rate;
audioFormat.mFormatFlags = 0;
switch (avfContext->streams[audio_index]->codec->codec_id)
{
case CODEC_ID_MP3:
audioFormat.mFormatID = kAudioFormatMPEGLayer3;
break;
case CODEC_ID_AAC:
audioFormat.mFormatID = kAudioFormatMPEG4AAC;
audioFormat.mFormatFlags = kMPEG4Object_AAC_Main;
break;
case CODEC_ID_AC3:
audioFormat.mFormatID = kAudioFormatAC3;
break;
default:
break;
}
if (audioFormat.mFormatID != -1) {
audioFormat.mBytesPerPacket = 0;
audioFormat.mFramesPerPacket =
avfContext->streams[audio_index]->codec->frame_size;
audioFormat.mBytesPerFrame = 0;
audioFormat.mChannelsPerFrame = avfContext->streams[audio_index]->codec->channels;
audioFormat.mBitsPerChannel = 0;
if (ret = AudioQueueNewOutput(&audioFormat, audioQueueOutputCallback, self, NULL, NULL, 0, &audioQueue)) {
NSLog(@"Error creating audio output queue: %d", ret);
}The issues only with the audio,
Video is perfect if only I can figure out how to get audio queues to work.
http://web.me.com/cannonwc/Site/Photos_6.html
I though of remoteio but there is’nt much doc on that.
I will share the code for the complete class with anyone that helps me get it to work.
The idea is to have a single view controller that plays any streaming video passed to it, similar to ffplay on the iphone but without the sdl overhead.
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how to send audio or video by packet though udp and sync the iamge and audio
24 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()));
// 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.