Recherche avancée

Médias (1)

Mot : - Tags -/MediaSPIP

Autres articles (38)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • 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 (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (3177)

  • I am trying to use ffmpeg to separate audio from video, but after downloading the ffmpeg build I cannot seem to activate it in Power Shell [duplicate]

    19 janvier 2021, par Row Boater

    Ok, look y'all, I am NOT an aspiring programmer. I'm simply trying to separate audio from video of a youtube video I downloaded.

    


    What I've done :

    


    Downloaded YT vid using 4k video Downloader

    


    I downloaded ffmpeg build from https://ffmpeg.org/download.html#build-windows

    


    I downloaded WinZip in order to access the ffmpeg files.

    


    I thought I used winzip correctly, but whenever I paste the command code line recommended to me, ffmpeg -i video.mp4 -c:a pcm_s16le audio.wav, I receive the following :

    


    


    PS C :\Users\user\Videos\4K Video Downloader> ffmpeg -i video.mp4 -c:a
pcm_s16le audio.wav ffmpeg : The term 'ffmpeg' is not recognized as
the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that
the path is correct and try again. At line:1 char:1

    


      

    • ffmpeg -i video.mp4 -c:a pcm_s16le audio.wav

      • 


    • 
 
        + CategoryInfo          : ObjectNotFound: (ffmpeg:String) [], CommandNotFoundException
  + FullyQualifiedErrorId : CommandNotFoundException



      


      • 


    


    PS C :\Users\user\Videos\4K Video Downloader>

    


    


    This is all Phoenician to me, but what I take away is that I have not completed some step to fully incorporate the ffmpeg code into my system. I believe that I am not using Winzip correctly.

    


    Thanks for your time.

    


  • How to save changes in video file in Ffmpeg C++ ?

    16 avril 2021, par TheSofya

    How to save changes in video file in Ffmpeg C++ ? Do we need encoder ? How to use avcodec_encode_video2 functions ?

    


    while (av_read_frame(pFormatCtx, &packet) >= 0)
    {

        if (packet.stream_index == videoStream) {
            avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet); 
            if (frameFinished) {
                sws_scale(sws_ctx, (uint8_t const* const*)pFrame->data,
                    pFrame->linesize, 0, pCodecCtx->height,
                    pFrameRGB->data, pFrameRGB->linesize);

                if (i == secretframe) {
                    //Here we change pixels
                    hidetext(pFrameRGB, pCodecCtx->width, pCodecCtx->height, secretframe);
                    //unhidetext(pFrameRGB, pCodecCtx->width, pCodecCtx->height, secretframe); 

                    std::cout << "\n\n" << i << "\n\n";
                }
                if (i > secretframe) { 
                break; 
                }
                i++;
            }
        }


    


  • Streaming is not save on wowza server

    19 septembre 2015, par Android

    I have issue with streaming save to server.
    We have two case :

    case 1.
    I have got one problem on streaming by Javacv with ffmpeg, streaming is work fine and i can see in wowza testing as well as vlc
    But that streaming is not save in wowza server, only save audio file in server.

    case 2.
    I have done streaming by livestreaming library and that work fine as well as save in wowza server.

    both case server is used same but one time it work fine other time it not.

    I have checked settings in wowza server to save any stream and it perfect everything.

Navigation