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Autres articles (35)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (5420)

  • After video codec copy to mp4 format with ffmpeg,new video has no screen and has just audio

    11 septembre 2016, par parsa

    I have an issue.sometimes when I convert video to mp4 with codec copy,my created video in chrome just has audio and it’s display a black screen, and in another browsers like firefox and internet explorer video doesn’t play.
    but I check this created video on my server and video displays.
    And here is my code in below

    ffmpeg -i -f mp4 -s 123.mov -codec copy 123.mp4

    The Output Of ffprobe 123.mp4 is :

    Metadata:major_brand:isom
    
minor_version :512
    
compatible_brands:isomiso2mp41
    
encoder:Lavf57.31.100
    
Duration: 00:26:58.97, start: 0.000000, bitrate: 1334 kb/s
    
Stream #0:0(und): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D)
    
,yuv420p, 640x480 [SAR 1:1 DAR 4:3],1200 kb/s, 29.97 fps,29.97 tbr, 30k tbn,29.97 tbc (default)
    
Metadata:handler_name: VideoHandler
    
Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, s16p, 12
    
7 kb/s (default)
    
Metadata:handler_name: SoundHandler

  • After video codec copy to mp4 format with ffmpeg,new video has no screen and has just audio

    19 juin 2018, par parsa

    I have an issue.sometimes when I convert video to mp4 with codec copy,my created video in chrome just has audio and it’s display a black screen, and in another browsers like firefox and internet explorer video doesn’t play.
    but I check this created video on my server and video displays.
    And here is my code in below

    ffmpeg -i -f mp4 -s 123.mov -codec copy 123.mp4

    The Output Of ffprobe 123.mp4 is :

    Metadata:major_brand:isom
    
minor_version :512
    
compatible_brands:isomiso2mp41
    
encoder:Lavf57.31.100
    
Duration: 00:26:58.97, start: 0.000000, bitrate: 1334 kb/s
    
Stream #0:0(und): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D)
    
,yuv420p, 640x480 [SAR 1:1 DAR 4:3],1200 kb/s, 29.97 fps,29.97 tbr, 30k tbn,29.97 tbc (default)
    
Metadata:handler_name: VideoHandler
    
Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, s16p, 12
    
7 kb/s (default)
    
Metadata:handler_name: SoundHandler

  • Aforge.NET Video Size Decreases When Writing Back Frames to the Video

    23 août 2016, par Irfan Babar
                 try { VideoFileReader reader = new VideoFileReader();
    
               VideoFileWriter wrt = new VideoFileWriter();
    
               tot = reader.FrameCount;
    
                wrt.Open("outvid.mp4",reader.Width,reader.Height,reader.FrameRate,VideoCodec.MPEG4);
    
                Bitmap videoFrame = null;
    

    
                for (int i = 1; i <= tot; i++)
    
                {
    
                     videoFrame = reader.ReadVideoFrame();
    

    
                     wrt.WriteVideoFrame(videoFrame );
    
                     videoFrame .Dispose();
    
                }
    
                wrt.Close();
    
                reader.Close();
    

    

    
            }
    
        }
    
        catch (Exception exc)
    
        {
    
            MessageBox.Show( exc.ToString());
    
        }

    after writing back the video size and resolution also decrease, what shoud i do to make perfect frame writing back into the video ?
    Actually I am reading frame by frame from one video and writing that video frame in another video without any modification,Please suggest me solutions

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