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Autres articles (23)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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 (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (5760)

  • When I use the hevc_videotoolbox encoder in ffmpeg it always prompts me the same error

    18 février 2023, par 张益铭

    when i use

    


    ffmpeg -i BabyShark.mp4 -c:v hevc_videotoolbox -b:v 6000k BabyShark1.mp4


    


    it always returns an error like

    


    


    [hevc_videotoolbox @ 0x7fec79206e00] Error encoding frame : -12905
[hevc_videotoolbox @ 0x7fec79206e00] popping : -542398533 Error
initializing output stream 0:0 — Error while opening encoder for
output stream #0:0 - maybe incorrect parameters such as bit_rate,
rate, width or height [aac @ 0x7fec79208a80] Qavg : 13693.864 [aac @
0x7fec79208a80] 2 frames left in the queue on closing Conversion
failed !

    


    


    but

    


    ffmpeg -i BabyShark1.mp4 -c:v h264_videotoolbox -b:v 6000k BabyShark2.mp4


    


    works fine.

    


    Other tutorials say that the above error is a problem of out-of-sync audio and video
But I changed a lot of videos, the error still appears, even the videos I recorded myself.
How can i fix it.

    


    My computer model is MacBook Pro 2019
I want to use GPU to convert video to H265 encoding

    


    Same problem with a computer using another M1 chip With GPU

    


  • How to combine two ffmpeg commands - adding blur bar and adding logo and subtitle ?

    23 mai 2019, par Wai Gyi

    I run the following two ffmpeg command lines to create videos with blur bar, logo and subtitle.

    1. Adding blur bars

      ffmpeg -i input.mkv -lavfi "[0:v]scale=iw:iw*3/4,boxblur=luma_radius=min(h\,w)/40:luma_power=3:chroma_radius=min(cw\,ch)/40:chroma_power=1[bg];[bg][0:v]overlay=(W-w)/2:(H-h)/2,setsar=1,crop=h=iw*3/4" blur_bar_added.mkv  

    2. Adding logo and subtitle

      ffmpeg -i blur_bar_added.mkv -i logo.png -filter_complex "[1][0]scale2ref=iw*0.15:ow/mdar[wm][v];[v][wm]overlay=W-w-5:5,ass=input.ass" output.mkv

    I would like to know how to combine them to run once. Thanks in advance.

  • Retrieving stdout from subprocess in Windows

    6 août 2017, par Cryptite

    I can call FFmpeg with subprocess.Popen and retrieve the data I need, as it occurs (to get progress), but only in console. I’ve looked around and seen that you can’t get the data "live" when running with pythonw. Yet, waiting until the process finishes to retrieve the data is moot, since I’m trying to wrap a PyQT GUI around FFmpeg so I can have pretty progress bars and whatnot. So the question is, can you retrieve "live" data from a subprocess call when using pythonw ?

    I haven’t tried simply compiling the application with py2exe yet as a windows application, would that fix the problem ?

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