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    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    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 (...)

Sur d’autres sites (10754)

  • OpenCV In Java Does Not Work With IP Webcam

    21 février 2016, par Kevin Bai

    I am trying to simply stream live video from my phone using the IP Webcam app and OpenCV in Java. In the Mac OS X, it works great when using the default webcam. If I try use the server on my phone, it does not work no matter what I do. I have tried :

    "http://192.168.1.182:8080/videofeed?something.mjpeg"
    
"http://192.168.1.182:8080/video?dummy=param.mjpg"

    In addition, I’ve also tried setting a login and password info to the server and using urls such as :

    "http://192.168.1.182:8080/?user=kbai&pwd=1234&resolution=32"

    No matter what I’ve tried, it does not work.

    I used Homebrew to install opencv3.1.0 which I installed it with ffmpeg, java and contrib.

  • how use ffmpeg to convert caf file ?

    25 novembre 2015, par tommy7xo

    I am using a ffmpeg to convert audio files. It is used for voice login mechanism for my web application. The problem occurs when I am using it from IOS application, but it works for web. IOS application is sending aa audio file to api, and it is converted on server side. Server is running script :

    ffmpeg -i $1 -ar 8000 -ac 1 $2

    $1 and $2 is input and output file path respectively. The only difference is file format as IOS is using .caf instead of .wav. When I run application for .caf file I have following error :

    /app/tmp/voices/1448448813_sample.caf: Input/output error

    It is a ffmpeg problem ? How to fix it ?

  • FFMPEG and FFPlay can access rtsp stream from one ip, but from other ip, it can't

    28 mai 2022, par Crear

    The situation is kind of complex. I was archiving several CCTV camera feeds (rtsp, h264, no audio) through OpenCV, which worked but the CPU utilization was too high and started to lose some frames time by time.

    


    To reduce the CPU utilization, I started to use FFMPEG to skip the decoding and encoding processes, which worked perfectly on my home machine. However, when I connected to my university VPN and tried to deploy it on our lab server, FFmpeg couldn't read any frame, ffplay couldn't get anything either. However, OpenCV, VLC Player and IINA Player could still read and display the feed.

    


    In Summary,

    


    1 FFMPEG/ffplay

    


    1.1 can only read the feed from my home network(Wi-Fi, optimum)

    


    1.2 from other two networks, the error message says : "Could not find codec parameters for stream 0 (Video : h264, none) : unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options"

    


    2 IINA/VLC Player, OpenCV
These tools can get the video all the time.

    


    I'm wondering whether it's related to some specific port access, that the ffmpeg required but the others don't. I'd appreciate it if anyone can provide any suggestions.

    


    As references, the tested ffplay command is simple :

    


    ffplay 'the rtsp address'


    


    Thanks

    


    


    Update

    


    More tests have been performed.

    


    By specifying rtsp_transport as TCP, ffplay can play the video, but FFmpeg can't access the video. (In the beginning, when both FFmpeg and ffplay worked through my home network, it was UDP)
The FFmpeg command is as follows :

    


    ffmpeg -i rtsp://the_ip_address/axis-media/media.amp -hide_banner -c:v copy -s 1920x1080 -segment_time 00:30:00 -f segment -strftime 1 -reset_timestamps 1 -rtsp_transport tcp "%Y-%m-%d-%H-%M-%S_Test.mp4"


    


    Please help...

    


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