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Autres articles (102)
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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 (...) -
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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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Révision 24552 : Ticket #4468 : unifier styles des icônes (classe .icone), boutons d’actions et bo...
7 avril 2020, par tcharlss@bravecassine.com -
ffmpeg efficiently compare a png logo with video except png's transparent background pixels
17 décembre 2022, par Thm LeeI want to find frames with the logo image from video, and to concat theses frames without commercials for getting ad-free video.
I tried this first by using ffmpeg & jpg logo image.


ffmpeg -i input.mp4 -loop 1 -i logo.jpg -an -filter_complex crop=47:25:639:24,"blend=difference:shortest=1,blackframe=95:60" -f null -



And it works, but in the case by case, less accurate with blackframe setting number.
So, for getting more accuracy I tried png logo image with transeparent background.


ffmpeg -i input.mp4 -loop 1 -i logo.png -an -filter_complex crop=47:25:639:24,"blend=difference:shortest=1,blackframe=95:60" -f null -



But on the contrary of my idea, the results came out worse than jpg logo. It seems that the cause is why ffmpeg compare the png's transparent background part pixels too with video.


Is there a way to compare png logo with video except png logo's transparent part pixels ?


I'd appreciate your advice, thank you.


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FFMPEG - chaining - Video, audio, ASS subtitle, then overlay logo ?
24 novembre 2020, par Flip BoothI have this to use a video, replace audio, and add subtitles :




ffmpeg -vsync 0 -hwaccel cuda -an -i "E :\video.mp4" -vn -i
"E :\audio.mp3" -vf "subtitles=E~:\sub.txt" -map 0:v -map 1:a -b:v
4M -maxrate 4M "E :\output.mp4" -y




I could not figure out how to add one more to the chain, such as adding a logo at the bottom right


What I've tried so far, after hours (still not working)




ffmpeg -vsync 0 -hwaccel cuda -an -i "E :\video.mp4" -vn -i
"E :\audio.mp3" -i "E :\logo.png" -vf "subtitles=E~:\sub.txt" -map
0:v -map 1:a -preset ultrafast -filter_complex
"[1]format=rgba,colorchannelmixer=aa=0.5[logo] ;[0][logo]overlay=(W-w)/2 :(H-h)/2:format=auto,format=yuv420p" "E :\output.mp4" -y