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  • 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 (...)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

Sur d’autres sites (13486)

  • vp9 : split superframes in the filtering stage before actual decoding

    13 novembre 2016, par Anton Khirnov
    vp9 : split superframes in the filtering stage before actual decoding

    Significantly increases the efficiency of frame threading, since
    
individual frames in a superframe can now be decoded in parallel.
    • [DBH] configure
    • [DBH] libavcodec/vp9.c

  • ffmpeg get last x seconds with high accuracy

    12 mars 2018, par rbarab

    I would like to batch process mp4 videos, getting the last x seconds of each and saving them to individual files.
    I need to do this with a very high accuracy, preferably to 0.001 seconds or better.
    Found a related question (FFMPEG : get last 10 seconds) suggesting -sseof, which works great, but as the answer said it’s not completely accurate with stream copy.

    I am trying to match video lengths to the length of a reference video.

    Would I need to re-encode ? Can sseof handle this accurate enough if I specify duration as 00:00:00.000000 (which I get from reference video ffprobe) ?

    Please see related ffprobe -i below, all videos to be processed have this same encoding.

       Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.83.100
    
  Duration: 00:00:58.67, start: 0.000000, bitrate: 639 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360, 499 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 131 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
duration=58.673000

    Is there a better way to achieve frame-level accuracy ? As end goal I would need to overlay these videos with 25fps ’frame-level accuracy’.

    Thanks a lot !

  • How to get the last x seconds with high accuracy with FFmpeg ?

    16 novembre 2024, par rbarab

    I would like to batch process mp4 videos, getting the last x seconds of each and saving them to individual files.
I need to do this with a very high accuracy, preferably to 0.001 seconds or better.
Found a related question (FFmpeg : get the last 10 seconds) suggesting -sseof, which works great, but as the answer said it's not completely accurate with stream copy.

    


    I am trying to match video lengths to the length of a reference video.

    


    Would I need to re-encode ? Can sseof handle this accurate enough if I specify duration as 00:00:00.000000 (which I get from reference video ffprobe) ?

    


    Please see related ffprobe -i below, all videos to be processed have this same encoding.

    


       Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
  Duration: 00:00:58.67, start: 0.000000, bitrate: 639 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360, 499 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 131 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
duration=58.673000


    


    Is there a better way to achieve frame-level accuracy ? As end goal I would need to overlay these videos with 25fps 'frame-level accuracy'.

    


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