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Autres articles (106)

  • 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 : (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • 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 (9626)

  • Playing RTSP in WPF application with low latency using FFMediaElement (FFME)

    17 août 2018, par Paboka

    I’m trying to use FFMediaElement (FFME, WPF MediaElement replacement based on FFmpeg) component to play RSTP live video in my WPF application.

    I have a good connection to my camera and I want to play it with minimum available latency.

    I’ve reduced the latency by changing ProbeSize to its minimal value :

    private void Media_OnMediaInitializing(object Sender, MediaInitializingRoutedEventArgs e)
    
{
    
  e.Configuration.GlobalOptions.ProbeSize = 32;
    
}

    But I still have about 1 second of latency since the very beginning of the stream. I mean, when I start playing, I have to wait for 1 second till the video appears and then I have 1s of latency.

    I’ve also tried to change following parameters :

    e.Configuration.GlobalOptions.EnableReducedBuffering = true;
    
e.Configuration.GlobalOptions.FlagNoBuffer = true;
    
e.Configuration.GlobalOptions.MaxAnalyzeDuration = TimeSpan.Zero;

    but it gave no result.

    Is there any parameter of FFME or FFmpeg I`ve missed ?

  • ffmpeg mp4 to hls vod with extract segment duration without re-encoding

    11 juillet 2021, par Jeremy

    Hello I have h264 mp4 files. What I want to do is convert it to hls without re-encoding. This can be achieve by :

    


    ffmpeg -i input.mp4 -c copy -force_key_frames "expr:gte(t,n_forced*4)" -hls_time 4 -hls_playlist_type vod -hls_segment_type mpegts vid.m3u8


    


    But this problem with this is that it doesn't create extract segment duration :

    


    $ for f in *.ts; do echo -n "$f,"; ffprobe -v error -show_entries format=duration -sexagesimal -of csv=p=0 "$f"; done
vid0.ts,0:00:04.837700
vid1.ts,0:00:05.587200
vid2.ts,0:00:06.006200
vid3.ts,0:00:01.368200
vid4.ts,0:00:02.693867


    


    I don't believe I can't insert keyframes without encoding.

    


    When I run :

    


    ffmpeg -i input.mp4 -codec:v libx264 -force_key_frames "expr:gte(t,n_forced*4)" -hls_time 4 -hls_playlist_type vod -hls_segment_type mpegts vid.m3u8


    


    its works but this is resource intensive as it re-encode the video.

    


    So I am looking for the best way to achieve this while using minimal resource as possible.

    


  • avutil/mem : Correct documentation of av_fast_*alloc(z)

    18 novembre 2018, par Andreas Rheinhardt
    avutil/mem : Correct documentation of av_fast_*alloc(z)

    The current wording regarding size and min_size is completely wrong and
    
ignores that min_size is indeed only a desired minimal size, not the
    
actually allocated size.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@googlemail.com>
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavutil/mem.h

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