Recherche avancée

Médias (0)

Mot : - Tags -/objet éditorial

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (108)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 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 (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (16037)

  • FFMPEG Overlay video on top of another video

    19 mai 2014, par James Blackbj Blackburn

    I have looked through all the questions on this on stackoverflow but none of the answers worked for me.

    I have a screen recorded video in mp4 and another video recorded from a webcam in mp4. I want to overlay the webcam video over the top left of the screen recorded video.

    I think I finally found the right command line for doing this but when I step through the ffmpeg process it freezes when it reaches " handler_name :SoundHandler".

    Here is my command line :

    string overlayPosition = "movie=" + '"' + _videoFile.FileName + '"' + "[inner]; [in][inner] overlay [out]";
    
string overLayCommand = "-i " + '"' + videoList[0].Path + '"' + " -vf " + '"' + overlayPosition + '"' +  + '"' + " C:\\Users\\james\\output.mp4" + '"';

    Does anyone know what I am doing wrong ? I’ve managed to trim audio and video, crop video, join sound, join video, and join sound and video but cannot get overlay to work :(.

  • How to extract a video snippet from a video file that is being written in by ffmpeg in realtime

    26 février 2015, par alex.b

    At the moment i am recording a LIVE stream video from youtube with youtube-dl (https://github.com/rg3/youtube-dl)

    The command i use for this :

    youtube-dl --id -f 92 https://www.youtube.com/watch?v=VYlQJbsVs48

    92 is a format code that i got after executing a command to get the formats, that gave me this list :

    format code  extension  resolution note
    
140          m4a        audio only DASH audio  144k , m4a_dash container, aac  @128k (48000Hz)
    
141          m4a        audio only DASH audio  272k , m4a_dash container, aac  @256k (48000Hz)
    
160          mp4        256x144    DASH video  124k , 15fps, video only
    
133          mp4        426x240    DASH video  258k , 30fps, video only
    
134          mp4        640x360    DASH video  616k , 30fps, video only
    
135          mp4        854x480    DASH video 1116k , 30fps, video only
    
136          mp4        1280x720   DASH video 2216k , 30fps, video only
    
137          mp4        1920x1080  DASH video 4141k , 30fps, video only
    
151          mp4        72p        HLS
    
132          mp4        240p       HLS
    
92           mp4        240p       HLS
    
93           mp4        360p       HLS
    
94           mp4        480p       HLS
    
95           mp4        720p       HLS
    
96           mp4        1080p      HLS  (best)

    This is creating a file called VYlQJbsVs48.mp4.part that gets bigger and bigger of course.

    Is there a way to extract a video snippet from that live stream or form the part file ? Or maybe there is a better way of doing this ?

    What i have noticed is that if i force quit iTerm2 while youtube-dl is running the .part file it creates wont contain any index information (something to do with an moov atom not being present in the mp4 file - which is the information about the number of frames and other things - metadata i think), so it makes me think i cannot extract from the file.

    Maybe if there would be a way that youtube-dl can write the index information at all times or maybe another way that i can record the live stream and get video snippets while its recording.

    I forgot to mention i am doing this on OSX Yosemite. I have FFMPEG installed with homebrew and youtoube-dl

    I am more than happy to try stuff on UBUNTU if there is a solution.

    Any help would be greatly appreciated.

    Thank you.

    Alex

  • How to extract a video snippet from a video file that is being written in by ffmpeg in realtime

    31 juillet 2020, par alex.b

    At the moment i am recording a LIVE stream video from youtube with youtube-dl (https://github.com/rg3/youtube-dl)

    



    The command i use for this :

    



    youtube-dl --id -f 92 https://www.youtube.com/watch?v=VYlQJbsVs48


    



    92 is a format code that i got after executing a command to get the formats, that gave me this list :

    



    format code  extension  resolution note
140          m4a        audio only DASH audio  144k , m4a_dash container, aac  @128k (48000Hz)
141          m4a        audio only DASH audio  272k , m4a_dash container, aac  @256k (48000Hz)
160          mp4        256x144    DASH video  124k , 15fps, video only
133          mp4        426x240    DASH video  258k , 30fps, video only
134          mp4        640x360    DASH video  616k , 30fps, video only
135          mp4        854x480    DASH video 1116k , 30fps, video only
136          mp4        1280x720   DASH video 2216k , 30fps, video only
137          mp4        1920x1080  DASH video 4141k , 30fps, video only
151          mp4        72p        HLS
132          mp4        240p       HLS
92           mp4        240p       HLS
93           mp4        360p       HLS
94           mp4        480p       HLS
95           mp4        720p       HLS
96           mp4        1080p      HLS  (best)


    



    This is creating a file called VYlQJbsVs48.mp4.part that gets bigger and bigger of course.

    



    Is there a way to extract a video snippet from that live stream or form the part file ? Or maybe there is a better way of doing this ?

    



    What i have noticed is that if i force quit iTerm2 while youtube-dl is running the .part file it creates wont contain any index information (something to do with an moov atom not being present in the mp4 file - which is the information about the number of frames and other things - metadata i think), so it makes me think i cannot extract from the file.

    



    Maybe if there would be a way that youtube-dl can write the index information at all times or maybe another way that i can record the live stream and get video snippets while its recording.

    



    I forgot to mention i am doing this on OSX Yosemite. I have FFMPEG installed with homebrew and youtoube-dl

    



    I am more than happy to try stuff on UBUNTU if there is a solution.

    



    Any help would be greatly appreciated.

    



    Thank you.

    



    Alex

    


Navigation