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  • 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 (...)

  • 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 : (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (3971)

  • Accord.Video.FFMpeg : Problem of duration difference between recording time and video time

    5 mars 2020, par ckrby

    I want to save the footage I get from the webcam as a video in webM (Vp8) format. I use the Accord library. But when recording, there is almost 2-3 times the difference between the time spent and the video time. The code I use and some debug outputs are below.

    Accord.Video.FFMpeg 3.8.2-Alpha (double pts/dts bug fixed version)
    Video Save Format : VP8 (.WebM)

    Record Start Settings :

    videoCodec = VideoCodec.Vp8;    
    
bitrate : 1250000   
    
framerate :10   
    
height :720 
    
width: 1280 
    
videoSource.VideoResolution: 1280x720, 30 fps (30 max fps), 24 bpp  
    
FileWriter.BitRate = bitRate;   
    
FileWriter.FrameRate = new Accord.Math.Rational((int)framerate );   
    
FileWriter.Width = width;   
    
FileWriter.Height = height; 
    
FileWriter.VideoCodec = videoCodec; 
    
FileWriter.Open(FileName);  
    
_recording = true;  
    
StartTimeStamp = DateTime.Now;  

    newFrame Event

    private void VideoSourcePlayer1_NewFrame(object sender, ref Bitmap image)
    
{
    
    if (_recording)
    
    {
    
        try
    
        {
    
            Bitmap CurrentBitmap = image;
    
            DateTime CurrentTimeStamp = DateTime.Now;
    
            TimeSpan CurrentTimeSpan = StartTimeStamp - CurrentTimeStamp;
    
            Console.WriteLine("Video Write Timespan: " + CurrentTimeSpan.ToString());
    
            FileWriter.WriteVideoFrame(CurrentBitmap, CurrentTimeSpan);
    
            // FileWriter.WriteVideoFrame(image);  
    
        }
    
        catch (Exception ex)
    
        {
    
            Console.WriteLine("VideoSourcePlayer1_NewFrame catch: " + ex.Message);
    
        }
    
    }
    
}

    Note : It is the same issue with timespan or without timespan writing.

    In the 122 second (02.02 min) period, 50 seconds of video recording is created. I couldn’t solve it.

    Little Part of the debug output :

    Video Write Timespan : -00:01:55.4107365
    pts:4,730000e+004 pts_time:47,3 dts:4,730000e+004 dts_time:47,3 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:55.6136263
    pts:4,740000e+004 pts_time:47,4 dts:4,740000e+004 dts_time:47,4 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:55.8354960
    pts:4,750000e+004 pts_time:47,5 dts:4,750000e+004 dts_time:47,5 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:56.5161088
    pts:4,760000e+004 pts_time:47,6 dts:4,760000e+004 dts_time:47,6 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:56.7309841
    pts:4,770000e+004 pts_time:47,7 dts:4,770000e+004 dts_time:47,7 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:56.9758413
    pts:4,780000e+004 pts_time:47,8 dts:4,780000e+004 dts_time:47,8 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:57.1947200
    pts:4,790000e+004 pts_time:47,9 dts:4,790000e+004 dts_time:47,9 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:57.4375834
    pts:4,800000e+004 pts_time:48 dts:4,800000e+004 dts_time:48 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:01:57.5804983

    The last two outputs :

    Video Write Timespan : -00:02:02.7505463
    pts:5,000000e+004 pts_time : 50 dts:5,000000e+004 dts_time : 50 duration:1,000000e+002 duration_time:0,1
    Video Write Timespan : -00:02:02.9884038
    pts:5,010000e+004 pts_time : 50,1 dts:5,010000e+004 dts_time : 50,1 duration:1,000000e+002 duration_time:0,1

    Why is there a difference between timespan and dts/pts time ? Could the problem be due to this ?

    Note : When I set the framerate to 30 ; Another process 95 seconds (1.35 min) recording time is 16 seconds in the video.

    As the frame rate increases, the length of the video gets shorter and
    shorter than the actual value it should be.

    Output :

    Video Write Timespan : -00:01:35.1086178
    pts:1,606700e+004 pts_time : 16,067 dts:1,606700e+004 dts_time : 16,067 duration:3,300000e+001 duration_time:0,033
    Video Write Timespan : -00:01:35.2565302
    pts:1,610000e+004 pts_time : 16,1 dts:1,610000e+004 dts_time : 16,1 duration:3,300000e+001 duration_time:0,033
    Video Write Timespan : -00:01:35.3984494
    pts:1,613300e+004 pts_time : 16,133 dts:1,613300e+004 dts_time : 16,133 duration:3,300000e+001 duration_time:0,033

    So the video duration is like dts_time. Why is the video duration not
    value of timespan time, I still can’t find it ??

    Soory for my bad english & expression,

  • FFMPEG get stuck when transcoding too many FLAC audios [closed]

    6 juin 2024, par user25436721

    I'm currently using Editly for create some videos from code, but there are some bugs with ffmpeg(latest).

    


    Nothing returns after hours processing(460 audios files during test), I already tried with flac, aac, libshine and libmp3lame encoders, already tried a different a ffmpeg version(static).

    


    From the editly code, I already changed the ffmpeg query, slicing in chunks(75), the results were :

    


      

    • 0, 75 ok

      • 


    • 0, 80 stuck

      • 


    • 75, 150 ok

      • 


    • 150, 225 ok

      • 


    • 225, 300 stuck

      • 


    • 300, 375 ok

      • 


    • 375, 450 ok

      • 


    


    Stuck screen(directly from terminal) :

    


    built with gcc 13 (Ubuntu 13.2.0-23ubuntu4)
  configuration: --pkg-config-flags=--static --prefix='~/ffmpeg/dyn' --extra-cflags='-I/~/ffmpeg/dyn/include' --extra-ldflags='-L/~/ffmpegffmpeg/dyn/lib' --bindir='~/ffmpeg/dyn/bin' --enable-debug=3 --enable-vaapi --enable-libvorbis --enable-libvpx --enable-gpl --cpu=native --enable-opengl --enable-libfdk-aac --enable-libx264 --enable-nonfree --enable-libmp3lame --enable-libshine
  libavutil      59. 21.100 / 59. 21.100
  libavcodec     61.  6.100 / 61.  6.100
  libavformat    61.  3.104 / 61.  3.104
  libavdevice    61.  2.100 / 61.  2.100
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100

Input #n..., flac, from 'editly-tmp-.../clip...-audio.flac':
  Metadata:
    encoder         : Lavf61.3.104
  Duration: 00:01:53.62, start: 0.000000, bitrate: 1 kb/s
  Stream #458:0: Audio: flac, 48000 Hz, stereo, s32 (24 bit)
Stream mapping:
  Stream #n1:0 (flac) -> acrossfade
  Stream #n2:0 (flac) -> acrossfade
  Stream #n3:0 (flac) -> acrossfade
  Stream #n...:0 (flac) -> acrossfade
  acrossfade:default -> Stream #0:0 (libshine)
  Press [q] to stop, [?] for help


    


    if I quit then returns :

    


    [fc#0 @] [ao0->#0:0 @] No filtered frames for output stream, trying to initialize anyway.
Output #0, mp3, to 'editly-tmp-.../audio-concat.mp3':
  Metadata:
    TSSE            : Lavf61.3.104
  Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 128 kb/s
      Metadata:
        encoder         : Lavc61.6.100 libshine
[out#0/mp3 @ 0x60633b423480] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/mp3 @ 0x60633b423480] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
size=       0KiB time=N/A bitrate=N/A speed=N/A    


    


    Editly code for generating FFMPEG query :

    


        let inStream = '[0:a]';
    const filterGraph = clipAudio.slice(0, -1).map(({ transition }, i) => {
      const outStream = `[concat${i}]`;

      const epsilon = 0.0001; // If duration is 0, ffmpeg seems to default to 1 sec instead, hence epsilon.
      let ret = `${inStream}[${i + 1}:a]acrossfade=d=${Math.max(epsilon, transition.duration)}:c1=${transition.audioOutCurve || 'tri'}:c2=${transition.audioInCurve || 'tri'}`;

      inStream = outStream;

      if (i < clipAudio.length - 2) ret += outStream;
      return ret;
    }).join(',');

    const args = [
      ...getFfmpegCommonArgs({ enableFfmpegLog }),
      ...(flatMap(clipAudio, ({ path }) => ['-i', path])),
      '-filter_complex',
      filterGraph,
      '-c', 'flac',
      '-y',
      outPath,
    ];
    await execa(ffmpegPath, args);


    


    FFMPEG query structure :

    


    ffmpeg -i /editly-tmp-.../clip000-audio.flac -i /editly-tmp-.../clip226-audio.flac -i ... -filter_complex [0:a][1:a]acrossfade=d=1:c1=tri:c2=tri[concat0],[concat0][2:a]acrossfade=d=0.425:c1=tri:c2=tri[concat1],[concat1][3:a]acrossfade=d=0.425:c1=tri:c2=tri[concat2],... -c flac -y /editly-tmp-.../audio-concat-3.mp3


    


    My hardware :

    


    Ubuntu 24.04 LTS
AMD Ryzen™ 5 5600G
Only 8gb(the other slot is broken)
AMD Radeon™ RX 580 2048SP


    


    Sorry my poor english :P

    


    Change Codecs, FFMPEG version, node version, slice the files in chunks, change SO(worked in Windows).

    


  • Official Piwik Training in Berlin – 2014, June 6th

    6 mai 2014, par Piwik Core Team — Community

    This event will focus on providing training to users of the Piwik analytics platform. The training will provide attendees with the necessary skills and knowledge that they will need to be able to take their website to the next level with Piwik.

    Language : English

    Register to Piwik Training now.

    Location : The 25hours Hotel Bikini Berlin is as diverse as the big city it is located in and as wild as a jungle. The hotel showcases cosmopolitan Berlin at its location in the listed Bikini-Haus building between the Tiergarten park and Breitscheidplatz with Kaiser Wilhelm Memorial Church.

    Piwik Training Location - Berlin 25hours Hotel Bikini Berlin

    Why do you need training ?

    If you have just started using Piwik and are finding it a bit overwhelming, this training event will benefit you immensely. You will be able to learn all the necessary skills that will allow you move forward with Piwik.

    For users who have been using Piwik for a short time and have a bit of experience in using Piwik, you will be able to learn how to advance your skills and extend your knowledge of the Piwik platform.

    Advanced users will be able to gain more knowledge about the complex features and functions that Piwik incorporates, allowing you to customise different areas of the platform and learn about advanced topics.

    How can you benefit from this training event ?

    By understanding how Piwik works and how to use and operate Piwik more effectively, you will be able to make sound changes to your website that will allow you to achieve your business goals.

    Everyone, from ecommerce businesses to government organisations can benefit from this training event and learn the essential skills and gain the relevant knowledge to meet their goals and requirements.

    Some of the skills that you will learn during the training include :

    • How to install and get started with the Piwik platform
    • How Piwik will add value to your website
    • How to analyse and make sense of the data and information that you collect
    • How to create custom segments that will allow you to report on certain data and information
    • Advance exercises – Piwik settings, tweaking and basic diagnostics

    What equipment do I need in order to participate in the event ?

    You will need a computer that is able to connect to a Wifi network

    Are the tickets transferable ?

    Yes, the tickets are transferable.

    What is the refund policy on the tickets ?

    You are entitled to a refund up to 1 week before the commencement of the training.

    Training details

    <script type="text/javascript">          (function() { var scribd = document.createElement("script"); scribd.type = "text/javascript"; scribd.async = true; scribd.src = "#{root_url}javascripts/embed_code/inject.js"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(scribd, s); })()        </script>

    Contact us : contact@piwik.pro

    Registrations

    Register to Piwik Training now !

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