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Autres articles (6)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

Sur d’autres sites (1660)

  • How to make HLS start from the begining

    15 septembre 2020, par Ariel Argañaraz

    I need some help with HLS streaming, I'm trying to create a playlist for streaming,

    



    I'm using ffmpeg to generate the files and the .m3u8 files. And for playing i'm using a web page with videojs player

    



    The idea is to simulate a live streaming using files already created.

    



    The problem is that in some version of iphone works and in another does not work.
The problem is that when I start play the video in the Safari browser of my phone it freezes for a while and then download and play the last segment.

    



    for example if the video is split in 4 differents .ts files.
It starts playing from the 4th .ts file and then stop.

    



    The problem is that I have 2 iphone mobile phone, one of them works perfectly but the other one not

    



    The not working cell phone is a iphone 6 (version 9.2.1)

    



    Here is my m3u8 file. Note that I'm using the #EXT-X-PLAYLIST-TYPE:EVENT and I remove the #EXT-X-ENDLIST from the botton. So it should be played as an live streaming.

    



    It works for another phones, it begins from the 0 second when I set the #EXT-X-START:TIME-OFFSET=0

    



    but in this version (9.2.1) the video freezes and then jumps to the last segment (webinar-3.ts) plays that segment and finally stop.

    



    #EXTM3U
#EXT-X-VERSION:4
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-ALLOW-CACHE:NO
#EXT-X-PLAYLIST-TYPE:EVENT
#EXT-X-START:TIME-OFFSET=0
#EXT-X-TARGETDURATION:6
#EXTINF:5.046444,
webinar-0.ts
#EXTINF:5,
webinar-1.ts
#EXTINF:5,
webinar-2.ts
#EXTINF:5,
webinar-3.ts


    



    Have anybody got an idea of what i'm doing wrong or how to get a m3u8 config that works for this iphone version ?

    


  • How to make HLS start from the begining

    15 juillet 2016, par Ariel Argañaraz

    I need some help with HLS streaming, I’m trying to create a playlist for streaming,

    I’m using ffmpeg to generate the files and the .m3u8 files. And for playing i’m using a web page with videojs player

    The idea is to simulate a live streaming using files already created.

    The problem is that in some version of iphone works and in another does not work.
    The problem is that when I start play the video in the Safari browser of my phone it freezes for a while and then download and play the last segment.

    for example if the video is split in 4 differents .ts files.
    It starts playing from the 4th .ts file and then stop.

    The problem is that I have 2 iphone mobile phone, one of them works perfectly but the other one not

    The not working cell phone is a iphone 6 (version 9.2.1)

    Here is my m3u8 file. Note that I’m using the #EXT-X-PLAYLIST-TYPE:EVENT and I remove the #EXT-X-ENDLIST from the botton. So it should be played as an live streaming.

    It works for another phones, it begins from the 0 second when I set the #EXT-X-START:TIME-OFFSET=0

    but in this version (9.2.1) the video freezes and then jumps to the last segment (webinar-3.ts) plays that segment and finally stop.

    #EXTM3U
    #EXT-X-VERSION:4
    #EXT-X-MEDIA-SEQUENCE:0
    #EXT-X-ALLOW-CACHE:NO
    #EXT-X-PLAYLIST-TYPE:EVENT
    #EXT-X-START:TIME-OFFSET=0
    #EXT-X-TARGETDURATION:6
    #EXTINF:5.046444,
    webinar-0.ts
    #EXTINF:5,
    webinar-1.ts
    #EXTINF:5,
    webinar-2.ts
    #EXTINF:5,
    webinar-3.ts

    Have anybody got an idea of what i’m doing wrong or how to get a m3u8 config that works for this iphone version ?

  • ffmpeg : Need to convert source video to web/phone html5 players. Willing to pay [on hold]

    25 juillet 2015, par mariotanenbaum

    I need somebody to write me commands for converting videos and i’m willing to pay that.

    I need to convert most of these : (if ffmpeg doesn’t support any of those, just ignore it)

    mov (QuickTime Movie)
    mp4 (MPEG-4 Video)
    mpe (MPEG Video)
    mpeg (MPEG Video)
    mpeg4 (MPEG-4 Video)
    3g2 (Mobile Video)
    3gp (Mobile Video)
    3gpp (Mobile Video)
    asf (Windows Media Video)
    avi (AVI Video)

    To most of these :

    HTML5, Flash : MP4/H.264, High profile
    HTML5 : WebM
    HTML5 : Ogg
    Mobile : MP4/H.264, Baseline profile, 480x360, for wide compatibility
    Mobile : MP4/H.264, Main profile, 1280x720, for newer iOS devices (iPhone 4, iPad, Apple TV)
    Mobile : 3GP/MPEG4, 320x240 and/or 177x144, for non-smartphones*

    Nothing which would not work out of box in ffmpeg
    Some tweaking about processor usage and quality is ok but not so important.

    Goal is to get suitable clips for playing in chrome, firefox, ie9, iphone and android.
    For now iphone is the most important.

    IF you have some spare time, feel free to contact me, i would pay somebody just to send me "commands". It doesn’t to be anything "smart" just so that i don’t need to spend so much time trying learn all about ffmpeg.