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Autres articles (62)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-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

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (10154)

  • Merge 2 videos like PIP (pitcher in pitcher) using ffmpeg

    12 décembre 2015, par Karthikeya Vaidya

    I am using ffmpeg to merge 2 videos as shown in below image. but the problem is both the videos are not in sync. To be more specific lets consider video1.mp4 starts at 00:01:00 and ends at 00:10:00 and video2.mp4 starts at 00:02:13 and ends at 00:10:00. Now I merge video1.mp4 and video2.mp4 to get pip.mp4 using below command

    ffmpeg -i video1.mp4 -i video2.mp4 -filter_complex "[1]scale=iw/5:ih/5 [pip]; [0][pip] overlay=main_w-overlay_w-10:main_h-overlay_h-10" -profile:v main -level 3.1 -b:v 440k -ar 44100 -ab 128k -s 720x400 -vcodec h264 -acodec aac -strict experimental  pip.mp4

    The problem is time gap of 1 min 13 sec remains for entire output video. ffmpeg is maintaining the end time of both videos. How can I mix both the videos so that starting time difference is eliminated (from lengthy video) from video1.mp4 and after that mixing of videos begins at same time frame and output video will be in sync.

    enter image description here

    Can anyone please suggest me how to achieve this

    Many Thanks

    Karthik Vaidya

  • Revision d8f5d1b257 : Problem of over smoothing with intra modes. In some cases intra modes in inter

    14 décembre 2012, par Paul Wilkins

    Changed Paths : Modify /vp9/encoder/vp9_firstpass.c Modify /vp9/encoder/vp9_rdopt.c Problem of over smoothing with intra modes. In some cases intra modes in inter frames give an over smoothed appearance. Especially with noisy but flat content. Also in some cases there were problems with key frame (...)

  • Applescript to batch convert videos with ffmpeg

    13 mai 2022, par Thad_Supersperm

    I'm trying to add padding to a large amount of videos in their folders. I created an app with AppleScriptEditor so I can drag and drop files and they're automatically converted. I found a script on the web, I edited it with the ffmpeg command I need, but it won't work because it wants to overwrite the source file.

    


    on open argv
    set paths to ""
    repeat with f in argv
        set paths to paths & quoted form of POSIX path of f & " "
    end repeat
    tell application "Terminal"
        do script "for f in " & paths & "; do ffmpeg -i \"$f\"  -vf pad=\"9/8*iw:ih:(ow-iw)/2:0:color=black\" \"$f\"; done"
        activate
    end tell
end open


    


    Note that I want to keep the filename, filetype and put the new file next to the old one but just add an underscore at the end of the new file, before the extension ; e.g. : file.ext. > file_.ext

    


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