Recherche avancée

Médias (1)

Mot : - Tags -/publier

Autres articles (65)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Menus personnalisés

    14 novembre 2010, par

    MediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
    Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
    Menus créés à l’initialisation du site
    Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...)

  • Les images

    15 mai 2013

Sur d’autres sites (6314)

  • Unable to get current time in TCL. can i use flush here ?

    30 novembre 2017, par M. D. P

    unable to get current time for the bellow code :

    proc a {} { 
    

    
        for {set i 0} {$i < 3} {incr i} {
    
    puts " $i "
    

    

    
                set imagetime [clock format [clock seconds] -format %Y%m%d_%H%M%S]
    
                set videotime [clock format [clock seconds] -format %Y%m%d_%H%M%S]
    
     
    
                exec ffmpeg -f dshow -i "video=Integrated Webcam" -s 1280x720 -benchmark c:/test/Image_$imagetime.jpg >& c:/test/image_$imagetime.txt &
    

    
                after 15000
    

    
                exec ffmpeg -f dshow -t 00:00:10 -i "video=Integrated Webcam" -s 1280x720 -benchmark c:/test/video_$videotime.avi >& c:/test/video_$videotime.txt &
    
                
    
                after 15000
    
        } 
    
}
    
a

    the output is :

    enter image description here

    the problem here is, even though the variable for taking video time and image time is different, it is tacking same time for video and image.

    any reason or solution for this ????

    can i use flush command ???

    can i work with following code :

    proc a {} { 
    

    
        for {set i 0} {$i < 3} {incr i} {
    
    puts " $i "
    

    
set time [clock format [clock seconds] -format %Y%m%d_%H%M%S]
    
                     
    
                exec ffmpeg -f dshow -i "video=Integrated Webcam" -s 1280x720 -benchmark c:/test/Image_$time.jpg >& c:/test/image_$time.txt &
    

    
                after 15000
    

    
                exec ffmpeg -f dshow -t 00:00:10 -i "video=Integrated Webcam" -s 1280x720 -benchmark c:/test/video_$time.avi >& c:/test/video_$time.txt &
    
                
    
                after 15000
    
        } 
    
}
    
a

    any answer ??

  • Could a compression algorithm be lossless and lossy at the same time ?

    27 octobre 2014, par Pasta Fresca

    I have seen ffmpeg has some codecs (e.g. H.264) which are defined as lossless and lossy at the same time, and from my understanding, lossless and lossy are mutually exclusive : a compression algorithm either losses information or doesn’t.

    How is it possible to be lossless and lossy at the same time ?

    Running ffmpeg -codecs 2>/dev/null| grep h264, I get :

    DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 [...]

    DEV.LS stands for Decoder, Encoder, Video, Not only intraframe compression, Lossy compression, Lossless compression.

  • Could a compression algorithm be lossless and lossy at the same time ?

    4 avril 2019, par Pasta Fresca

    I have seen ffmpeg has some codecs (e.g. H.264) which are defined as lossless and lossy at the same time, and from my understanding, lossless and lossy are mutually exclusive : a compression algorithm either losses information or doesn’t.

    How is it possible to be lossless and lossy at the same time ?

    Running ffmpeg -codecs 2>/dev/null| grep h264, I get :

    DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 [...]

    DEV.LS stands for Decoder, Encoder, Video, Not only intraframe compression, Lossy compression, Lossless compression.

Navigation