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Autres articles (95)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
Sur d’autres sites (11233)
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Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG
30 septembre 2015, par Kevin JastiIm trying to overlay a smaller video (200x200)on top of a bigger video (800x800).
I’ve used the FFMPEG overlay filter to achieve this
ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]" final.mp4
Challenge is that the smaller video needs its edges to be rounded.
I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it. -
FFMPEG Adding intro video and scaling it to the original video
10 octobre 2019, par QuestionsI have one intro video of fixed resolution, 1920x1080, and main videos with different resolutions. I could merge the videos using the following command
ffmpeg -i intro.mp4 -i main.mp4 -i intro.mp4 -filter_complex " \
[0:v]scale=640x352,setsar=sar=16/9[intro]; \
[1:v]scale=640x352,setsar=sar=16/9[video]; \
[2:v]scale=640x352,setsar=sar=16/9[outro]; \
[intro][video][outro]concat=n=3[output]; \
[0:a][1:a] acrossfade=d=1 [audio]" \
-vcodec libx264 -map "[output]" -map "[audio]" "main__.mp4"This works perfectly if I specify the scales manually. But this doesn’t work for portrait videos which has resolution of 640x352 with rotation of -90 degrees, when I check them with ffprobe.
Is there a way to scale the intro video dynamically to match the dimensions of the main video ? It’s fine if the intro video’s aspect ratio is distorted, and just retain the main video’s size.
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How to add srt embedded subtitles from source video, to ouput hls playlist video ?
2 mars 2023, par iarwain8aI have a source video "video.mkv" that has srt embedded subtitles, and I want to encode that file into an HLS playlist that is compatible with html5 video player.


So far I got this :

ffmpeg -i <path> -map 0:s:1 -c:s:1 srt -f webvtt <hlsdir>/1subs.vtt -c:a aac_mf -b:a 128k -c:v copy -hls_time 7 -hls_list_size 0 -hls_segment_filename <hlsdir>/segment%d.ts <hlsdir>/playlist.m3u8 -loglevel debug</hlsdir></hlsdir></hlsdir></path>

What this line does, is extract and encode the subtitles at the same time, leaving them in the output folder, also it encodes the audio of the video to aac, and leaves the codec of the video as is.

I tried a bunch of different commands with ffmpeg to no avail, a bunch of different errors came up.
I want to, in the same line, instead of just extracting the subtitles, to also be able to add them to the hls playlist, which I couldn't do.