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Autres articles (90)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
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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 (...)
Sur d’autres sites (13043)
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Ffmpeg stream problems with buffer data
27 juin 2023, par Erdem Ünmy code is not working. I cannot conversion. how can I fix ?


readable event working but Error output is




data undefined




try {

 const readStream = fs.createReadStream('./ses.webm');

 const command = childProcess.spawn('ffmpeg', ['-i', 'pipe:0', '-c:a', 'aac', 'pipe:1']);

 readStream.pipe(command.stdin);
 command.stdout.on('readable', (a) => {
 console.log('data', a)
 });

 command.on('data', (code) => {
 console.log(`ffmpeg işlemi tamamlandı. Çıkış kodu: ${code}`);
 });
 } catch (error) {
 console.log(error)
 }



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Need a better understanding of HTML 5 audio/video meta data use and placement
24 juin 2012, par nicozI have spent a significant amount of time researching HTML 5 audio and video, however I am stuck understandong the encoding of the meta data. It seems that in my research, using programs like Handbrake (ffmpeg) it is recommend to check of "web optimized" (also using this type of setting when say exporting from imovie). I have concluded that this has to do with moving the file's meta data to the beginning of the file. This then gives the player/browser the info it requires to play immediately without having to wait to load the entire file.
So here is where I am confused and the questions
Does this only apply to mp4 files ? (I need to also encode/transcode .ogv and .webm)
Where does the mp4 MOOV atom fit into this or is that what people are referring to, when they say move the meta data to the front of the file ? -
How to add telemetry data from a video to jpg file ?
10 septembre 2021, par code0x00I have a 360deg video that is created by Go Pro Fusion and has telemetry data in it. I want to extract the telemetry data and put inside of jpg file.


I am extracting images using ffmpeg :


ffmpeg -i VIDEO.mp4 -r 5 img%d.jpg



How can i extract metadata(including telemetry data) for each frame and put that metadata inside jpg image of that frame.


I tried using


exiftool -ee -a -u -U -TagsFromFile video.mp4 img1.jpg



But all the metadata that appear in video does not appear in image.


I tried this :


exiftool -track1:VideoFrameRate=29.97 img1.jpg 



But getting this warning :


Warning: Sorry, Track1:VideoFrameRate doesn't exist or isn't writable
Nothing to do.



20.00



I get this from video. But unable to set in jpg as mentioned above.


And how to ensure that the images are assigned with the exact GPS data ?