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Autres articles (51)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • 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 (6857)

  • ffmpeg : simple RTMP streaming over LAN

    30 mars 2013, par sajad

    I am trying to launch up a rtmp transcoder server using ffmpeg ; that receives udp MPEG-TS streams as input, transcodes it ; and generates an rtmp output to a URL, that can be accessed by users to receive and play the rtmp stream. All these are expected to be performed in a LAN and the output be accessed by all users.

    1) First I don't know where the URL should point to. Is it enought to specify the IP of the system and some optional port ? Is it neccessary that a program should be listening on that port ?

    2) How I can play the stream on the URL ?

    I use a linux ubuntu machine whith IP=10.1.1.229 and I want to transcode multicast stream on this URL : udp://@224.10.1.1:2001.

    here is the command used to transcode input stream and generate rtmp url "rtmp ://10.1.1.229:2020".

    ffmpeg -y -f mpegts -i "udp://@224.10.1.1:2001" -re -vcodec libx264 -maxrate 700k -r 25 -s 640x360 -deinterlace -acodec libfaac -ab 64k -ac 1 -ar 44100 -f flv "rtmp://10.1.1.229:2020"

    and here is the command by which I am trying to play rtmp stream :

    ffplay rtmp://10.1.1.229:2020

    Any guidance would be helpfull. Thank you.

  • Scrolling Effect of an Image using FFmpeg [closed]

    5 juin, par neeebzz

    I want to create an mp4 video of 40 seconds where an image just floats from top to bottom and vice versa.

    


    I am using the following ffmpeg command :

    


    ffmpeg 
    -loop 1 
    -t 40 
    -i ./input.jpg 
    -filter_complex [0]scale=800:-1[s0];[s0]crop=h=450:w=800:x=0:y=(ih-450)*(3*pow(t/40.241\,2) - 2*pow(t/40\,3))[s1];[s1]scale=800:400[s2] 
    -map [s2] 
    -pix_fmt yuv420p 
    -preset medium 
    -r 30 
    -vcodec libx264 
    ./output.mp4 -y


    


    The animation is working as expected however the motion is very jerky. How can I smooth it out ?

    


    Ffmpeg version :

    


    ffmpeg version 5.1.6-0+deb12u1 Copyright (c) 2000-2024 the FFmpeg developers


    


  • avutil : Fix linking x86 asm constants with Clang in MSVC mode

    12 juin, par Martin Storsjö
    avutil : Fix linking x86 asm constants with Clang in MSVC mode

    This fixes building with Clang in MSVC mode, for x86, which was
    
broken in 6e49b8699657b808b7dc80033f2c3f2d0e029fa3 (in Nov 2024) ;
    
previously it failed with undefined symbols for the constants
    
defined with DECLARE_ASM_CONST, accessed via inline assembly.
    

    Before 57861911a34e1c33796be97f2b2f44e05fffd647, there was an
    
    #elif defined(__GNUC__) || defined(__clang__)
    
case before the
    
    #elif defined(_MSC_VER)
    
case for defining DECLARE_ASM_CONST, which included av_used.
    
(This case included the explicit "defined(__clang__)" since
    
f637046d3134a331e4b5a7243ac3dfb92735b8a5.)
    

    After 57861911a34e1c33796be97f2b2f44e05fffd647, it used the
    
generic definition of DECLARE_ASM_CONST that also included
    
av_used - which also worked for Clang in MSVC mode. But after
    
6e49b8699657b808b7dc80033f2c3f2d0e029fa3, Clang in MSVC mode
    
ended up using the MSVC specific variant which lacked the
    
av_used declaration, causing linker errors due to undefined
    
symbols.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] libavutil/mem_internal.h

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