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Autres articles (104)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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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 -
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 (10391)
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Rotation Video Overlay Over Image producing some weird output with the FFMPEG KIT for android by arthenica / ffmpeg-kit
25 octobre 2023, par Yash KalariyaI want to overlay some video on the image frame and rotate it and output it as the resultant video. However the command is running successfully but it is producing some weird output video with both the top and bottom portion with black layer, but however the rotation of the video over the image is successful but the top and bottom portion are getting black.


Here is my command that i have used with the ffmpeg kit for android by arthenica/ffmpeg-kit.


"-i " +inputImage+" -i "+inputVideo+" -filter_complex [1:v]format=rgba,rotate="+(float) Math.toDegrees(Double.parseDouble("-1.1073"))+"*(PI/180)[a] ;[0:v][a]overlay=252:103 "+ "-threads 5 -preset veryslow -q:v 3 "+resultVideo


"-i /data/user/0/com.codemenschen.lmsapp/files/images/1698225617748.jpeg -i /data/user/0/com.codemenschen.lmsapp/files/videos/Lmwy1698225601507.mp4 -filter_complex [1:v]format=rgba,rotate=-63.443615*(PI/180)[a] ;[0:v][a]overlay=252:103 -threads 5 -preset veryslow -q:v 3 /data/user/0/com.codemenschen.lmsapp/files/videos/Lmwy1698225618149.mp4"


Here is the link to the Image frame :
https://drive.google.com/file/d/1G6R7_E5prAE6QBRipKIgA7G6Imjy_KM3/view?usp=sharing


Here is the link to the Overlay Video : https://drive.google.com/file/d/1sYWt1Whu5TqaxSMHc6zpgGedEBaWuRqP/view?usp=sharing


Here is the link to the Output Video : https://drive.google.com/file/d/1cQ2G77bVqFc6e1vZJBXo0MHw7TyBiiVN/view?usp=sharing


Can someone help me with this ?


Here is the command that i have tried and its working but producing weird outputs with black portion :


"-i /data/user/0/com.codemenschen.lmsapp/files/images/1698225617748.jpeg -i /data/user/0/com.codemenschen.lmsapp/files/videos/Lmwy1698225601507.mp4 -filter_complex [1:v]format=rgba,rotate=-63.443615*(PI/180)[a] ;[0:v][a]overlay=252:103 -threads 5 -preset veryslow -q:v 3 /data/user/0/com.codemenschen.lmsapp/files/videos/Lmwy1698225618149.mp4"


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Got black screen when recording screen by x11grab device
30 janvier 2014, par shawnzhuI'm trying to record video from a firefox run by
xvfb-run
but it always output nothing in the video file except black screen.Here's what I did :
start a firefox, open google.com :
$ xvfb-run firefox https://google.com
Then it will use the default display server number 99. I can see the display information by command
xdpyinfo -display :99
.A screenshot works very well by command :
$ xwd -root -silent -display :99.0 | xwdtopnm |pnmtojpeg > screen.jpg
Start using ffmpeg to record a video :
$ ffmpeg -f x11grab -i :99.0 out.mpg
When I play the video file
out.mpg
, there's black screen all the time.Is there any parameter I missed ?
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Got black screen when recording screen by x11grab device
5 août 2019, par shawmzhuI’m trying to record video from a firefox run by
xvfb-run
but it always output nothing in the video file except black screen.Here’s what I did :
start a firefox, open google.com :
$ xvfb-run firefox https://google.com
Then it will use the default display server number 99. I can see the display information by command
xdpyinfo -display :99
.A screenshot works very well by command :
$ xwd -root -silent -display :99.0 | xwdtopnm |pnmtojpeg > screen.jpg
Start using ffmpeg to record a video :
$ ffmpeg -f x11grab -i :99.0 out.mpg
When I play the video file
out.mpg
, there’s black screen all the time.Is there any parameter I missed ?