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Autres articles (25)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • 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 (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

Sur d’autres sites (3560)

  • How does sunshine capture and stream the desktop

    24 juin 2024, par user16235056

    I am looking to understand the Sunshine project by Loki which works with moonlight to stream a desktop with very low latency based on Nvidia's GameStream.

    


    I looked at the source code on GitHub, but couldn't figure out how the screen is captured and the stream is converted to an RTSP packet.
I think they use ffmpeg to capture the screen.

    


    I did find the RTSP packet definition here

    


    Could someone explain how this works ?
I am trying to understand this on a low level, since I want to implement a similar program as part of a project later(probably in C++ itself).

    


    I don't have much experience here, but am looking to get my hands dirty ! :)

    


    Hope my question is clear and any help to understand this or other resources I could take a look at would be greatly appreciated.

    


  • FFmpeg : How to color-key all colors except blue and white ?

    21 février 2018, par DanielNg

    I know how to colorkey a specific color from an overlay video based on the documentation from FFmpeg. Here is the code I used to colorkey the black color out of a video then overlay it with a base video keeping the audio from the overlaid video :

    "ffmpeg -i " + baseVid + " -i " + overlayVid + " -y" + ' -filter_complex "[1:v]colorkey=0x000000:0.6:0.0[ckout];[0:v][ckout]overlay=shortest=1[out]" -shortest -map 1:a -map "[out]" ' + output

    However, my problem is that the overlaid video also contains other colors such as blue, white, brown, grey, green. Even though they are only small portions compared to the black that has been removed, they make the colorkeyed overlaid video look really dirty. I want to keep only the two main colors (blue and white) and removing the rest from the overlaid video. How do I do this using FFmpeg. I tried this code but it did not work.

  • How to speed up m3u8 to mp4 conversion using ffmpeg

    17 décembre 2022, par Sahil Bagdi

    I am downloading mp4 from m3u8 using ffmpeg

    


    ffmpeg -i "https://92vod-adaptive.akamaized.net/exp=1671307488~acl=%2F48b4b587-13d3-42f9-bfb9-8a0c92876523%2F%2A~hmac=66ce19e1dc862e0b718a3eb73b42f54bf83855db43831e146252adccf0dc6f1a/48b4b587-13d3-42f9-bfb9-8a0c92876523/sep/video/67e2046f,8f9cecb7,b83b6682,0f26a563,3c957583/audio/0b5e7d8c,5f37ccc0,60c393d7/subtitles/59401986-English%20%28auto-generated%29-en-x-autogen-cc/master.m3u8?subcache=1&external-subs=1&subtoken=38c45483ebf2c8238ec8504c20207a588d72f633f79608c00f5950d0300576f3&query_string_ranges=1" -c copy -map p:0 "Testing of Hypothesis.mp4"



    


    but it is taking too long, like my speed is 10 MBps(80 mbps) size is 300MB, should be done in 30 seconds, but it takes upto 5-10 minutes sometimes, now I know it does some converting thing

    


    My question is is there any way to increase its speed ??
I have CPU- AMD Ryzen 5600H and
GPU - NVIDIA RTX 3050

    


    Some help will be really appreciated

    


    I checked some nvidia encoding and decoding things from there official website and tried many things from there but always stuck at some error

    


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