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Autres articles (74)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • 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 (7286)

  • 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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