Recherche avancée

Médias (33)

Mot : - Tags -/creative commons

Autres articles (44)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

Sur d’autres sites (6565)

  • lavc/vc1dsp : R-V V vc1_unescape_buffer

    12 mai 2024, par Rémi Denis-Courmont
    lavc/vc1dsp : R-V V vc1_unescape_buffer

    Notes :

    - The loop is biased toward no unescaped bytes as that should be most common.

    - The input byte array is slid rather than the (8 times smaller) bit-mask,
    
  as RISC-V V does not provide a bit-mask (or bit-wise) slide instruction.

    - There are two comparisons with 0 per iteration, for the same reason.

    - In case of match, bytes are copied until the first match, and the loop is
    
  restarted after the escape byte. Vector compression (vcompress.vm) could
    
  discard all escape bytes but that is slower if escape bytes are rare.
    

    Further optimisations should be possible, e.g. :

    - processing 2 bytes fewer per iteration to get rid of a 2 slides,

    - taking a short cut if the input vector contains less than 2 zeroes.
    
But this is a good starting point :
    

    T-Head C908 :
    
vc1dsp.vc1_unescape_buffer_c :      12749.5
    
vc1dsp.vc1_unescape_buffer_rvv_i32 : 6009.0
    

    SpacemiT X60 :
    
vc1dsp.vc1_unescape_buffer_c :      11038.0
    
vc1dsp.vc1_unescape_buffer_rvv_i32 : 2061.0
    • [DH] libavcodec/riscv/vc1dsp_init.c
    • [DH] libavcodec/riscv/vc1dsp_rvv.S

  • AWS Chime : Video Merging Java Library

    18 mai 2023, par Swapnil Srivastav

    I am using AWS Chime to record interaction of two or more than two participants, I want to process this and build a final video.

    


    While making final video I want to mask one participant's video with some generic image and everything I want to do using Java.

    


    Is there any library available which can help me to do this ? I'm using Python as of today, ffmpeg library.

    


  • ffmpeg : Is this a bug in Xcode ?

    30 avril 2014, par daozhao

    I debug the ffmpeg program on the macosx with xcode.I find a bug with xcode(or lldb)。

    code @ ffmpeg_opt.c-->static int open_input_file(OptionsContext *o, const char *filename)
    #ifdef DEBUG
    av_log(NULL,AV_LOG_INFO,"func :%s(%d) filename :%s \n", __func__,__LINE__,filename) ;
#endif

        if (!strcmp(filename, "-"))  //after step over,the debug windows show filename=NULL.
    
        filename = "pipe :" ;
    

    #ifdef DEBUG
    
    av_log(NULL,AV_LOG_INFO,"func :%s(%d) filename :%s \n", __func__,__LINE__,filename) ; 
    
    //but it can print the correct value。
    
#endif

    you can clone the project from https://github.com/daozhao/FFmpeg.git, and checkout branch(release/2.2withComment) which is include xcode project file. you can debug with FFmpegMakefile targets try it.

    you can see the screen record on https://www.youtube.com/watch?v=3rTLirTGPM4 .

    my OS:10.9.2, xcode:5.1.1

Navigation