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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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

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  • convert WAV to TETRA format

    14 juin 2020, par Ashish Arora

    I am trying to convert a wav file into TETRA encoded file (https://en.wikipedia.org/wiki/Terrestrial_Trunked_Radio). Tetra is used by fire-fighters, it provides a radio-like voice.

    



    I am trying to use the official tetra codec codes available at (https://www.etsi.org/deliver/etsi_en/300300_300399/30039502/01.03.01_60/) and we can easily compile it using the scripts available at https://github.com/sq5bpf/install-tetra-codec.

    



    However, I am not able to figure out how to convert a wav file into tetra codec files using these files. I tried going through the documentation of the compiled files (ccoder, cdecoder, scoder, sdecoder).

    



    I tried the following command -

    



    


    tetra/bin/scoder input.wav serial_file synth_file

    


    



    here serial_file and synth_file are the output files and have following documentation in the scoder.c file :

    



        INPUT   :   - Description : speech file to be analyzed
                - Format : binary file 16 bit-samples
                  240 samples per frame

serial_file :   - Description : serial stream output file 
            - Format : binary file 16 bit-samples
              each 16 bit-sample represents one encoded bit
              138 (= 1 + 137) bits per frame

synth_file  :   - Description : local synthesis output file 
            - Format : binary file 16 bit-samples


    



    For an input file of size 13M, I obtained serial_file and synth_file of size 8.0M and 16M. However, I thought since the wav file is getting converted into a walkie-talkie type signal the output file size will be alot smaller.

    



    I want to clarify if :

    



      

    • I used the correct code to convert an input wav file into a tetra format output file.

      • 


    • can you please help me understand, what is serial_file and synth_file.

      • 


    



    Thanks,
Ashish

    


  • avcodec/dovi_rpuenc : add ff_dovi_rpu_generate()

    30 mars 2024, par Niklas Haas
    avcodec/dovi_rpuenc : add ff_dovi_rpu_generate()

    This function takes a decoded AVDOVIMetadata struct and turns it back
    
into a binary RPU. Verified using existing tools, and matches the
    
bitstream in official reference files.
    

    I decided to just roll the EMDF and NAL encapsulation into this function
    
because the end user will need to do it otherwise anyways.
    • [DH] libavcodec/dovi_rpu.h
    • [DH] libavcodec/dovi_rpuenc.c

  • Cannot install ffmpeg [closed]

    22 mai 2022, par Ashok M

    I'm trying to learn video processing using Python. For that, I tried installing one of two packages using Homebrew : ffmpeg and ImageMagick. After upgrading and updating Homebrew, I ran the command : brew update && brew install ffmpeg. Below is the error I got before some downloads started :

    


    ERROR :

    


    xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun


    


    After all downloads completed, another error came up as shown below :

    


    Error: python@3.9: the bottle needs the Apple Command Line Tools to be installed.
  You can install them, if desired, with:
    xcode-select --install
You can try to install from source with:
  brew install --build-from-source python@3.9
Please note building from source is unsupported. You will encounter build
failures with some formulae. If you experience any issues please create pull
requests instead of asking for help on Homebrew's GitHub, Twitter or any other
official channels.


    


    I'm on MacOSx with Python 10.4 installed. Don't if that's making any difference to the installation. Thanks for any help.

    


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