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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (56)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)
Sur d’autres sites (7799)
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ffmpeg : Infinite length output when overlaying subtitles onto black image
18 juillet 2020, par rosuavI'm trying to do some analysis of image-based subtitles by outputting them as a sequence of PNGs to a pipe. My command line looks like this :


ffmpeg -y -i $INPUTFILE -f lavfi -i color=c=black:s=1920x1080 -filter_complex "[1:v][0:s:5]overlay[v]" -shortest -map "[v]" -c:v png -f image2pipe - | pike subspng.pike


In theory,
-shortestshould mean that the stream stops at the shortest input, which would be roughly seven minutes of input file. Instead, my script receives an infinite sequence of black frames after the last frame of subtitles, until I send FFMPEG a SIGINT. Placing-shortestbefore-filter_complexhas the same effect.

Is there a different way to force the filtering to stop at the end of the input file ?


EDIT : Using the
shortest=1flag on the overlay filter also doesn't help, even in combination with-shortest.

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Android Studio - Append two videos but showing black screen
6 septembre 2020, par DarkhmarFirst of all hello,


When I add another mp4 file at the end of an mp4 file, the video looks completely black screen but I can get the video sounds.


If I add a copy of a video to the end of it, I saw that there was no problem, but this is not a scenario I want.


I am getting the "text relocations" error when merging with the FFmpeg library. (This problem is fixed when I change this library version, but I have other problems. Therefore, mp4parser is an alternative I see.)


The piece of code that allows the videos to be merged is as follows. Thank you from now.


private void appendTwoVideos(String firstVideoPath, String secondVideoPath) {
 try {
 Movie[] inMovies = new Movie[2];

 inMovies[0] = MovieCreator.build(firstVideoPath);
 inMovies[1] = MovieCreator.build(secondVideoPath);

 List<track> videoTracks = new LinkedList<>();
 List<track> audioTracks = new LinkedList<>();

 for (Movie m : inMovies) {
 for (Track t : m.getTracks()) {
 if (t.getHandler().equals("soun")) {
 audioTracks.add(t);
 }
 if (t.getHandler().equals("vide")) {
 videoTracks.add(t);
 }
 }
 }

 Movie result = new Movie();

 if (audioTracks.size() > 0) {
 result.addTrack(new AppendTrack(audioTracks
 .toArray(new Track[audioTracks.size()])));
 }
 if (videoTracks.size() > 0) {
 result.addTrack(new AppendTrack(videoTracks
 .toArray(new Track[videoTracks.size()])));
 }

 BasicContainer out = (BasicContainer) new DefaultMp4Builder().build(result);

 @SuppressWarnings("resource")
 FileChannel fc = new RandomAccessFile(DIRECTORY_PATH + "output.mp4", "rw").getChannel();
 out.writeContainer(fc);
 fc.close();
 } catch (FileNotFoundException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }
}
</track></track>

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Remove black bars from DV video using ffmpeg [closed]
2 juillet 2020, par AustinMaxi1750I have copied all my Panasonic DV videos (PAL) from the 1990s to my PC as 'dv avi' using Windows movie maker in the original quality (approx 13GB per hour of video).


At the time the recordings were made I set the Panasonic camera to 16:9. However searching various forums indicates it was an illusion of 16:9 and black bars were superimposed on the 4:3 picture to give a cinematic feel. I have read also that the DV pixels are not square.


As a result all my 16:9 recordings have black bars at the top and bottom when viewed on a 16:9 monitor. The file properties are as follows :


Frame width : 720
Frame height : 576


Is there a code in ffmpeg to remove the black bars ?


I attach an example of what I have :
image with black bars


and an example of what I want to achieve :
image without black bars


I also want to convert the format without loss of quality so I can watch the videos without the black bars on a modern smart TV. My TV cannot play back DV AVI.


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