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Médias (1)
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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (29)
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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 -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (5209)
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How to convert MKV to MP4 while at the same time hardcoding the subtitles ? FFMPEG
7 août 2015, par user400424I’m currently using the following command to convert to MP4.
ffmpeg -i source.mkv -crf 16.0 -vcodec libx264 -acodec libvo_aacenc -ar 48000 -b:a 128k output.mp4
I saw the above command on a forum before. Now the problem is, when it converts the video, it doesn’t include the subtitle and overlays(?) that the MKV has. What do I modify in the above command so that they are hardcoded to the output MP4 file ?
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Anomalie #2651 (Nouveau) : Gestion des forums : bugs et anomalies
13 avril 2012, par Julien -Forum : messages publics et internes d’un article dans l’espace privé : Lors des tests : SPIP3-svn du 11 avril au soir. Je suis sur : ?exec=controler_forum&objet=article&id_objet=4 J’ai 1 message public et 1 message interne. Problème [A] : Onglet "Messages publics" 1 - Au survol, on a (...)
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FFMPEG : Convert WebM VP8/VP9 multi-resolution video to MP4 (H.264)
28 janvier 2022, par thedeadaliveI have been trying to convert a multi-resolution WebM video ( VP9/VP8/H.264 ) (1280 x 1080 till the half, thereafter 1080 x 1280) to MP4 container with H.264 encoding for video.


When transcoded with FFMPEG is locking into the frame size it's encountering at the start of the video (1280 x 1080 in this case) when transcoded with libvpx (for VP8 and VP9) and libx264 (for H264).


The only instance i could get it right was when the Input WebM was having H.264 video and opus Audio, and ffmpeg was instructed to just copy the video stream and trans-code the Audio to aac only.


Is there way in make ffmpeg support multi-resolution video transcoding ?


How to generate a sample video : On a Chrome or Firefox (on a device that supports auto rotation and has different resolution on portrait and landscape) that supports mediaRecorder API goto this link : https://webrtc.github.io/samples/src/content/getusermedia/record/ , start recording a video , while recording the video, change orientation, stop recording and download the video. file)


Discussion Reference : https://groups.google.com/a/webmproject.org/forum/# !topic/webm-discuss/IgumDyMAHY0