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Publier une image simplement
13 avril 2011, par ,
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (70)
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(Dés)Activation de fonctionnalités (plugins)
18 février 2011, parPour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
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 (10268)
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Ffmpeg - Concat two video file - Defining absolute path of video file not working
9 juillet 2014, par Ghanshyam DobariyaI am using Ffmpeg to concate three mp4 files.
I am following this article
https://trac.ffmpeg.org/wiki/How%20to%20concatenate%20(join,%20merge)%20media%20filesCheck topic Concat protocol
I have 3 .ts files, now running following command that merges all 3 .ts files properly
ffmpeg -i "concat:video1.ts|video2.ts|video3.ts" -c copy -bsf:a aac_adtstoasc output.mp4Now same command I want to run from php code, so I am giving absolute path of each file, and the command is as below.
/home/pc-16/bin/ffmpeg -i "concat:|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video1.ts'|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video2.ts'|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video3.ts'" -c copy -bsf:a aac_adtstoasc "/var/temp/rt-web/web/video/iRec/HOKPINzHFS/final.mp4"This gives following error
concat:|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video1.ts'|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video2.ts'|'/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video3.ts': No such file or directoryHave also tried the same command by removing single quotes from file names
/home/pc-16/bin/ffmpeg -i "concat:|/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video1.ts|/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video2.ts|/var/temp/rt-web/web/video/iRec/HOKPINzHFS/video3.ts" -c copy -bsf:a aac_adtstoasc "/var/temp/rt-web/web/video/iRec/HOKPINzHFS/final.mp4"but got the same error message.
Can anybody tell me how to specify absolute file names in command.
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IplImage crop and rotate - Android
26 février 2015, par GaneshI’m using ffmpeg to video capture for 30 seconds.
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
if (yuvIplimage != null && recording && rec)
{
new SaveFrame().execute(data);
}
}
}save frame class is below
private class SaveFrame extends AsyncTask {
long t;
protected File doInBackground(byte[]... arg) {
t = 1000 * (System.currentTimeMillis() - firstTime - pausedTime);
toSaveFrames++;
File pathCache = new File(Environment.getExternalStorageDirectory()+"/DCIM", (System.currentTimeMillis() / 1000L)+ "_" + toSaveFrames + ".tmp");
BufferedOutputStream bos;
try {
bos = new BufferedOutputStream(new FileOutputStream(pathCache));
bos.write(arg[0]);
bos.flush();
bos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
pathCache = null;
toSaveFrames--;
} catch (IOException e) {
e.printStackTrace();
pathCache = null;
toSaveFrames--;
}
return pathCache;
}
@Override
protected void onPostExecute(File filename)
{
if(filename!=null)
{
savedFrames++;
tempList.add(new FileFrame(t,filename));
}
}
}finally i add all frames with crop and rotation
private class AddFrame extends AsyncTask {
private int serial = 0;
@Override
protected Void doInBackground(Void... params) {
for(int i=0; i/ final int startY = 640*(480-480)/2;
// final int lenY = 640*480;
// yuvIplimage.getByteBuffer().put(bytes, startY, lenY);
// final int startVU = 640*480+ 640*(480-480)/4;
// final int lenVU = 640* 480/2;
// yuvIplimage.getByteBuffer().put(bytes, startVU, lenVU);
if (tempList.get(i).time > recorder.getTimestamp()) {
recorder.setTimestamp(tempList.get(i).time);
}
image = cropImage(image);
image = rotate(image, 270);
// image = rotateImage(image);
recorder.record(image);
Log.i(LOG_TAG, "record " + i);
image = null;
serial++;
publishProgress(serial);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (com.googlecode.javacv.FrameRecorder.Exception e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onProgressUpdate(Integer... serial) {
int value = serial[0];
creatingProgress.setProgress(value);
}
@Override
protected void onPostExecute(Void v)
{
creatingProgress.dismiss();
if (recorder != null && recording) {
recording = false;
Log.v(LOG_TAG,"Finishing recording, calling stop and release on recorder");
try {
recorder.stop();
recorder.release();
finish();
startActivity(new Intent(RecordActivity.this,AnswerViewActivity.class));
} catch (FFmpegFrameRecorder.Exception e) {
e.printStackTrace();
}
recorder = null;
}
}
}my crop and rotate method are below
private IplImage cropImage(IplImage src)
{
cvSetImageROI(src, r);
IplImage cropped = IplImage.create(imageHeight, imageHeight, IPL_DEPTH_8U, 2);
cvCopy(src, cropped);
return cropped;
}
public static IplImage rotate(IplImage image, double angle) {
IplImage copy = opencv_core.cvCloneImage(image);
IplImage rotatedImage = opencv_core.cvCreateImage(opencv_core.cvGetSize(copy), copy.depth(), copy.nChannels());
CvMat mapMatrix = opencv_core.cvCreateMat( 2, 3, opencv_core.CV_32FC1 );
//Define Mid Point
CvPoint2D32f centerPoint = new CvPoint2D32f();
centerPoint.x(copy.width()/2);
centerPoint.y(copy.height()/2);
//Get Rotational Matrix
opencv_imgproc.cv2DRotationMatrix(centerPoint, angle, 1.0, mapMatrix);
//Rotate the Image
opencv_imgproc.cvWarpAffine(copy, rotatedImage, mapMatrix, opencv_imgproc.CV_INTER_CUBIC + opencv_imgproc.CV_WARP_FILL_OUTLIERS, opencv_core.cvScalarAll(170));
opencv_core.cvReleaseImage(copy);
opencv_core.cvReleaseMat(mapMatrix);
return rotatedImage;
}my final video crop and rotate but green frames and colored frames mixed with this.
How to fix this problem. I’m not aware of iplimage. In some blogs they mention its YUV format. first u need to convert Y and then convert UV.
How to solve this problem ?
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ffmpeg zoompan, zoom to positions X Y
15 juillet 2021, par MIQUEL CASTRO NAVARROHi im using ffmpeg to zoom an image to specific point x, y. I want the points x,y to be the final position of the zoom the comand I have right now is :


ffmpeg -y -i zoomInimg.jpg -vf "scale=6198:2350:-1,zoompan=z='min(max(zoom,pzoom)+0.06,10)':d=2400:x=4000 :y=1000 :s=6198x2350" -t 5 zoomIn.mp4


so i want the image to end in points x=4000:y=1000
Is there a formula to do that ?


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