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  • 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 (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

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  • (no accepted answer) How to merge 2 overlapping videos into one video using ffmpeg or opencv ?

    3 janvier 2021, par Muhammad Umer

    Merging two videos is easy, been answered couple of times. What I have is multiple overlapping videos. A video might have overlaps with video before it. Meaning if video 1 covers 1-5 timeline then video 2 may overlap 1, and cover 3 to 8. Merging them as is would result in 1-5|3-8, when i need 1-8 only.

    



    Videos are alphabetically sorted.

    



    My general idea of solution is...

    



      

    • grab last frame of the video
    • 


    • if it's first video continue
    • 


    • if it's not first video, ie. 2nd, search for frame saved in previous steps frame by frame
    • 


    • if it reaches to last frame of current video then there is no overlap continue
    • 


    • if it founds a frame then clip 2nd video up to that frame inclusive and then go to next frame
    • 


    • once all videos have been analyzed, merge them into one video.
    • 


    



    I need to translate this to ffmpeg commands. Or opencv if that's a better tool.

    



    If there is better way of doing that, I'm interested in that too.

    


  • Comparison of two ffmpeg commands for video segment

    14 juillet 2021, par Anas Ansari

    I have two commands for making video segments in android ffmpeg

    


      

    • -ss startTime -i inputVideo -f segment -segment_time segmentDuration -reset_timestamps 1 -vcodec copy -b:v2 097152 -b:a 48000 -ac 2 -ar 22050 outputPath
    • 


    • -ss startTime -i inputVideo -f segment -segment_time segmentDuration -reset_timestamps 1 outputPath
    • 


    


    I have tried them both and noticed that first command is very very fast than second

    


    Since I am new to ffmpeg , i really don't know them meaning of every argument in these commands

    


    Can anyone plz explain me why first command is better and will it cause any errors in future

    


  • cbs_sei : Remove restrictions on MDCV values

    1er janvier 2021, par Mark Thompson
    cbs_sei : Remove restrictions on MDCV values
    

    Since this was originally written the standards have changed to allow
    arbitrary values here, but leaves their meaning unspecified.

    • [DH] libavcodec/cbs_sei_syntax_template.c