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Autres articles (99)

  • 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 (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, 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 (...)

Sur d’autres sites (11466)

  • FFMPEG : How to extract multichannel track from m4v, mix it down and save the stereo downmix as "left" and "right" ?

    1er juin 2017, par chillynilly

    just like the title already says : I want to extract a multichannel track (5.1) from an .m4v, mix this track down and save the output as separate files, so in the end I want to have something like ’downmix_left.wav’ and ’downmix_right.wav’
    I know how to do a downmix and I know how to split the audio, but I do not know how to do it in one step, which would save me a lot of time.

    This is the command I use for splitting :

    ffmpeg -i "video.m4v" -vn -filter_complex \
    
"[0:2]channelsplit=channel_layout=5.1(side)[FL][FR][FC][LFE][SL][SR]" \ 
    
-map "[FL]" video_left.wav \ 
    
-map "[FR]" video_right.wav \ 
    
-map "[FC]" video_center.wav \ 
    
-map "[LFE]" video_lfe.wav \ 
    
-map "[SL]" video_back_left.wav \ 
    
-map "[SR]" video_back_right.wav

    And this is the command for the downmix of a multichannel track :

    ffmpeg -i "video.m4v" -vn -map 0:2 -ac 2 \ 
    
-af "aresample=matrix_encoding=dplii" video_downmix.wav

    Is it possible to combine these and if so, how can it be done :D ? I would appreciate it very much if you could help me out here.

  • FFMPEG : How to extract multichannel track from m4v, mix it down and save the stereo downmix as "left" and "right" ?

    30 septembre 2015, par chillynilly

    just like the title already says : I want to extract a multichannel track (5.1) from an .m4v, mix this track down and save the output as separate files, so in the end I want to have something like ’downmix_left.wav’ and ’downmix_right.wav’
    I know how to do a downmix and I know how to split the audio, but I do not know how to do it in one step, which would save me a lot of time.

    This is the command I use for splitting :

    ffmpeg -i "video.m4v" -vn -filter_complex \
    
"[0:2]channelsplit=channel_layout=5.1(side)[FL][FR][FC][LFE][SL][SR]" \ 
    
-map "[FL]" video_left.wav \ 
    
-map "[FR]" video_right.wav \ 
    
-map "[FC]" video_center.wav \ 
    
-map "[LFE]" video_lfe.wav \ 
    
-map "[SL]" video_back_left.wav \ 
    
-map "[SR]" video_back_right.wav

    And this is the command for the downmix of a multichannel track :

    ffmpeg -i "video.m4v" -vn -map 0:2 -ac 2 \ 
    
-af "aresample=matrix_encoding=dplii" video_downmix.wav

    Is it possible to combine these and if so, how can it be done :D ? I would appreciate it very much if you could help me out here.

  • movenc : ensure chapters track extradata is not null and populated

    22 août, par Damiano Galassi
    movenc : ensure chapters track extradata is not null and populated

    fix a regression introduced in 4eca8df,
    
writing chapters failed if chapters where
    
not available before mov_write_header().
    • [DH] libavformat/movenc.c

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