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Autres articles (104)
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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 (...) -
MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, 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 (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (14610)
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FFmpeg live stream to Youtube with Raspberry Pi & USB Camera — What command to use for better quality ?
4 août 2023, par qwet142I am currently streaming to Youtube live with the following command :


ffmpeg -re -f s16le -i /dev/zero -f v4l2 -thread_queue_size 512 -codec:v mjpeg -s 1920x1080 -i /dev/video0 -c:v libx264 -preset ultrafast -acodec aac -b:v 3500k -g 30 -f flv rtmp://a.rtmp.youtube.com/live2/key


The frame rate is great, and the speed is 1x. However, the quality is very poor, improved only slightly after increasing the bitrate to 3000k. Changing the resolution doesn't help, and using veryfast makes things worse. How can I fix the quality ?


Note : there is no audio and this is a USB camera.


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Convert youtube video files with ffmpeg to a format that can be playable on ios devices
26 décembre 2018, par AminI’ve created a
telegram robot
that downloads YouTube files and sends them to the user. Since most of our users useios
devices, Our first priority isios
.
Videos files play onWindows
andAndroid
but not broadcast onios
.
I convert format with ffmpeg after download from youtube :ffmpeg -i input.mp4 -strict -2 -vcodec mpeg4 output.mp4
But in addition to prolonging the processing time, the file size increases and eventually the file will not run again in
ios
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ffmpeg nvenc_h264 streaming uhd2160 rawvideo. Youtube buffering
23 janvier 2019, par Alex DerozaI use this batch file for starting my stream :
echo starting transocding from native uhd2160 to fhd format.. Host: YouTube
ffmpeg ^
-loglevel -8 ^
-f rawvideo -s:v 1920x1080 -r 60 -pix_fmt nv12 ^
-f dshow -i video="Game Capture 4K60 Pro Video 01":audio="Game Capture 4K60 Pro Audio 01" ^
-c:v h264_nvenc ^
-level:v 4.2 ^
-profile:v high ^
-preset:v hq ^
-b:v 8.8M ^
-color_range 2 ^
-colorspace bt709 ^
-bf 0 ^
-g 60 ^
-2pass 1 ^
-rc:v cbr ^
-coder cabac ^
-acodec aac ^
-ab 128k ^
-movflags +faststart ^
-f flv rtmp://a.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx && pauseStream on YouTube starts fine, and plays with good quality. But stream stops after when "Buffer Health" emptied. And in this situation Youtube says that "Video output low", "YouTube is not receiving enough video to maintain smooth streaming. As such, viewers will experience buffering."
I can’t understand why it happens. Because I’ve a good ISP, and over 30 mbps inet to YT services within 90ms latency to them.
YouTube is not receiving enough video to maintain smooth streaming. As
such, viewers will experience buffering.Your encoder is sending data faster than realtime (multipleseconds of
video each second). You must rate limit your livevideo upload to
approximately 1 second of video each second.The stream’s current bitrate (5730.00 Kbps) is lower than the
recommended bitrate. We recommend that you use a stream bitrate of
4500 Kbps.