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Autres articles (48)
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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 -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)
Sur d’autres sites (7161)
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Convert a ffmpeg video to an appropriate dimension
6 mars 2015, par georgechalhoubI am writing a video conversion script using ffmpeg, it has been completed to full. Ideally, my video conversion script should output the video to many formats (like YouTube) :
- 140p : 256 x 144
- 240p : 426 x 240
- 360p : 640 x 360
- 480p : 854 x 480
- 720p : 1280 x 720
- 1080p : 1920x 1080
The problem I am facing is that if a user uploads a 480p (854 x 480) video or close to 480p (854 x 480) the script will convert to all formats (1080p and 720p) which would seem like a waste of bandwidth and disk space in this case.
The problem isn’t as easy as it seems. If a user uploads a 500 x 300 video I don’t want it to get converted to a 240p, there has to be some estimations.
Who can help me or has some experience with such kind of problems ?
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Speed up poster image overlay
17 juillet 2017, par timgavinUsing FFMPG I’m creating a poster image from a video and adding an watermark/overlay to the poster. The following works great with small video files, but destroys my CPU with 1080p files.
ffmpeg -ss 15 -i preview.mp4 -i play-button.png \
-filter_complex overlay='(main_w-overlay_w)/2:(main_h-overlay_h)/2', \
scale='min(640\, iw):-1' -vframes 1 poster.jpgIs there any way to speed this up ? Or should I look to another solution for the overlay ?
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How to change the size of audio visualisers in ffmpeg ?
3 juillet 2017, par Meme StreamI have this command in ffmpeg :
echo shell_exec("$ffmpeg -i test.aiff -y -filter_complex '[0:a]showfreqs=s=1920x1080:mode=bar:ascale=log:fscale=lin:win_size=w1024:win_func=poisson:colors=blue,format=yuv420p[v]' -map '[v]' -map 0:a output2.mp4 2>&1");
I want to make it so that the video dimensions are still 1080p but the showfreqs graph is squashed and located near the bottom of the screen. How do I do this ? Thanks.