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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 (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (8464)

  • How to download a 61th minute video for 5 seconds remotely ?

    18 octobre 2015, par user186259

    As you can quickly download video from a remote part of a large video file with ffmpeg ?

    ffmpeg -ss 01:00:00 -i http://example.com/videofile.flv -t 00:01:00 -vcodec copy -acodec copy file.flv

    Here I miss the first hour of video and download 61th minutes. It takes 20 minutes. Time of the operation = end of video and splitting it locally.

    How can I speed up the process ?

  • Download Video from m3u8 with ffmpeg and multibitrate

    24 avril 2013, par AbrahamSustaita

    I need to download the videos from a streaming site (Akamai) once they are recorded. I can do it with ffmpeg without troubles, but only if the manifest file has only one video stream. If it has multibitrate then I got into problems. Is there anyway I can tell ffmpeg to download one or other video ?

    This is the line I'm using :

    ffmpeg -i http://akamai.link.com/master.m3u8 -acodec copy -vcodec copy  -y -loglevel info -f mp4 destiny.mp4

    EDIT : Adding response :

    This is the file I'm using :

    #EXTM3U
    
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=714000,RESOLUTION=640x480,CODECS="avc1.77.30, mp4a.40.34"
    
http://urlAt.akamai.com@channel/index_650_av-p.m3u8?sd=10&rebase=on
    
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=714000,RESOLUTION=640x480,CODECS="avc1.77.30, mp4a.40.34"
    
http://urlAt.akamai.com@channel/index_650_av-b.m3u8?sd=10&rebase=on
    
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=64000,CODECS="mp4a.40.34"
    
http://urlAt.akamai.com@channel/index_650_a-p.m3u8?sd=10&rebase=on
    
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=64000,CODECS="mp4a.40.34"
    
http://urlAt.akamai.com@channel/index_650_a-b.m3u8?sd=10&rebase=on

    ffmpeg response correctly, but the file is not complete.

    ADDING OUTPUT WITH -map PARAMTER

    dev:/var/www/localhost/htdocs# ffmpeg -map -i simple.m3u8 -acodec copy -vcodec copy  -y -loglevel info -f mp4 simple.mp4
    
ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Oct 25 2012 08:01:45 with gcc 4.7.2 (Alpine 4.7.2-r0)
    
  configuration: --prefix=/usr --enable-gpl --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-libvpx --enable-libxvid --enable-libx264 --enable-libtheora --enable-nonfree --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-x11grab --disable-asm --disable-stripping --disable-static --disable-debug
    
  libavutil      51. 73.101 / 51. 73.101
    
  libavcodec     54. 59.100 / 54. 59.100
    
  libavformat    54. 29.104 / 54. 29.104
    
  libavdevice    54.  2.101 / 54.  2.101
    
  libavfilter     3. 17.100 /  3. 17.100
    
  libswscale      2.  1.101 /  2.  1.101
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
Invalid input file index: 0.

  • I want to upload a camera video stream to Amazon S3 and download it to an Android phone. I'm completely new to this. How can I do this ?

    26 juin 2015, par Jackie Wu

    I’m really dumb and new to RTP/SIP. Is there a stack that’s recommended for uploading video to the cloud from a camera attached to a microprocessor ? What’s the difference between all the things I’m seeing - MPEG DASH, Live555, ffmpeg, and so on...?

    How does WhatsApp or Dropcam transmit live video ?

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