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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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 (...)

  • MediaSPIP Player : les contrôles

    26 mai 2010, par

    Les contrôles à la souris du lecteur
    En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)

Sur d’autres sites (6932)

  • Generate individual HLS-compatible .ts segments on-demand by downloading as little bytes as possible from a remote input file

    28 juillet 2017, par Romain Cointepas

    I’m trying to generate individual HLS-compatible .ts segments on-demand by downloading/reading as little bytes as possible from a remote input file (hosted on a server supporting byte-ranges requests).

    One of the application for this would be to be able to transcode and play on Apple TV (via Airplay) a remote file that is not Airplay compatible, without having to download the entire file first.

    I am generating the playlist myself, and I have access to the ffprobe results for the remote file (that gives video duration, etc.).

    I have something working that plays via Airplay but with small video and audio glitches between each segments when I use the following command to generate each segment :

    ffmpeg -ss 60 -t 6 -i http://s3.amazonaws.com/misc-12345/avicii.vob -f mpegts -map 0:v:0 -map 0:a:0 -c:v libx264 -bsf:v h264_mp4toannexb -force_key_frames "expr:gte(t,n_forced*6)" -forced-idr 1 -pix_fmt yuv420p -colorspace bt709 -c:a aac -async 1 -preset ultrafast pipe:1

    Note : above command is for segment 11.ts, and in the m3u8 playlist I advertise each segment duration as 6 seconds.

    Here is a Youtube video showing the audio/video glitches between segments :
    https://www.youtube.com/watch?v=0vMwgbSfsu0

    The segment or hls modules of ffmpeg can’t be used because they both generate all the segments at once.

    I’ve been struggling on this for some days now and I would really appreciate some help !

  • Generate individual HLS-compatible .ts segments on-demand by downloading as little bytes as possible from a remote input file

    27 janvier 2017, par Romain Cointepas

    I’m trying to generate individual HLS-compatible .ts segments on-demand by downloading/reading as little bytes as possible from a remote input file (hosted on a server supporting byte-ranges requests).

    One of the application for this would be to be able to transcode and play on Apple TV (via Airplay) a remote file that is not Airplay compatible, without having to download the entire file first.

    I am generating the playlist myself, and I have access to the ffprobe results for the remote file (that gives video duration, etc.).

    I have something working that plays via Airplay but with small video and audio glitches between each segments when I use the following command to generate each segment :

    ffmpeg -ss 60 -t 6 -i http://s3.amazonaws.com/misc-12345/avicii.vob -f mpegts -map 0:v:0 -map 0:a:0 -c:v libx264 -bsf:v h264_mp4toannexb -force_key_frames "expr:gte(t,n_forced*6)" -forced-idr 1 -pix_fmt yuv420p -colorspace bt709 -c:a aac -async 1 -preset ultrafast pipe:1

    Note : above command is for segment 11.ts, and in the m3u8 playlist I advertise each segment duration as 6 seconds.

    Here is a Youtube video showing the audio/video glitches between segments :
    https://www.youtube.com/watch?v=0vMwgbSfsu0

    The segment or hls modules of ffmpeg can’t be used because they both generate all the segments at once.

    I’ve been struggling on this for some days now and I would really appreciate some help !

  • how to merge segmented m4s or find the init file with ffmpeg

    17 février 2023, par user3385102

    i have this locked video that i can watch but looking at the responses i see that the video looks like its split into 3 m4s segments

    


    this video seems to be hosted in vimeo but i can't seem to know where to find the init.mp4 nor do i knoew how to merge the segment and turn it into mp4 with ffmpeg

    


    enter image description here

    


    hi , i have this locked video that i can watch but looking at the responses i see that the video looks like its split into 3 m4s segments

    


    this video seems to be hosted in vimeo but i can't seem to know where to find the init.mp4 nor do i knoew how to merge the segment and turn it into mp4 with ffmpeg

    


    enter image description here

    


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