Recherche avancée

Médias (0)

Mot : - Tags -/clipboard

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (46)

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • 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 : (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5984)

  • AWS ffmpeg-lambda-layer and concat protocol (Node.js)

    25 février 2021, par portik

    I am trying to concatenate two .mp3 files using ffmpeg lambda-layer. I have what I think is the correct command, but I struggle to represent it in code so that it is formatted correctly for the lambda layer. Here is a piece of code that I am struggling to get right :

    


    spawnSync(
  '/opt/ffmpeg/ffmpeg',
  [
    '-i',
    '"concat:/tmp/pt1.mp3|/tmp/pt2.mp3"',
    '-acodec',
    'copy',
    `/tmp/${fileName}`
  ],
  { stdio: 'inherit' }
)


    


    The error I'm getting : "concat:/tmp/pt1.mp3|/tmp/pt2.mp3": No such file or directory.

    


    I tried to list files in /tmp/ folder - both files listed in the input are there, not sure why lambda layer can't find them.

    


    Similar question : https://lists.ffmpeg.org/pipermail/ffmpeg-user/2019-December/046299.html. Ffmpeg concatenate protocol documentation : https://trac.ffmpeg.org/wiki/Concatenate#protocol.

    


    Thanks in advance !

    


  • ffmpeg command to GStreamer pipeline for srtp stream

    1er avril 2021, par Muhammet Ilendemli

    I would like to convert this working ffmpeg command to a GStreamer pipeline but I couldn't manage to get it working. Tried using srtpenc toset the key to a hex representation of the buffer and udpsink with the target host and port set.

    



    The command I currently have :

    



    ffmpeg -re -i &lt;<rtspurl>> -map 0:0 -vcodec h264_omx -pix_fmt yuv420p \&#xA;  -r 30 -f rawvideo -tune zerolatency -vf scale=1280:720 -b:v 300k \&#xA;  -bufsize 300k -payload_type 99 -ssrc &lt;<ssrc>> \&#xA;  -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 \&#xA;  -srtp_out_params &lt;<base64key>> srtp://&lt;<targetip>>:&lt;<targetport>>?rtcpport=&lt;<targetport>>&amp;localrtcpport=&lt;<targetport>>&amp;pkt_size=1378&#xA;</targetport></targetport></targetport></targetip></base64key></ssrc></rtspurl>

    &#xA;&#xA;

    Some references :

    &#xA;&#xA;

    &#xA;

  • Recording video in C#

    30 décembre 2022, par pfedotovsky

    I have to do the following : record video from a camera using C#. The camera I use produces video frames (the frame rate is not fixed) and I have to somehow put all the frames together and create a video file. Also I need to use different codecs, such as AVI or MPEG-4 (these codecs are required, others are optional).

    &#xA;

    The main problem I faced was how to create a video in which the frame rate is not fixed. I have a stream of frames. For example, I can receive the first frame after 1 ms, then after 20 ms, then 36 ms and so on. If I create video with 25 frames/second the result will be wrong because it means that frames are added after 40 ms.

    &#xA;

    I tried to use Aforge.Video library. It has a method which adds a frame according to a timespan. But this method has problems with setting the bitrate. The bitrate value I pass to the method is simply ignored (About an FFmpeg bitrate and framerate issue).

    &#xA;

    Is there some C# library which I can use to do video recording ? I have to support AVI and MPEG-4, and also the possibility to set the bitrate and last but not least - record video with a variable framerate.

    &#xA;

    I can't connect to the camera directly. All I have is a stream of frames and I need to convert this stream to video at run time.

    &#xA;

    A library I'm looking for should satisfy the following properties. It has to contain a method (or some way how to do the same) to add the next frame with a timestamp, just like in Aforge.Video.FFMPEG :

    &#xA;

    public void WriteVideoFrame(Bitmap frame, TimeSpan timestamp)&#xA;

    &#xA;

    And it should be possible to choose different codecs (at least AVI and MPEG-4) and also to set bitrate.&#xA;Are there some alternatives to Aforge.Video.FFMPEG ? Because Aforge doesn't work properly. The bitrate value is ignored, and also some codecs are not supported (MPEG-2 for example).

    &#xA;

    About the codec license. If I use an open source library, should I worry about the codec license ?

    &#xA;

Navigation