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Somos millones 1
21 juillet 2014, par
Mis à jour : Juin 2015
Langue : français
Type : Video
Autres articles (31)
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HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (7556)
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wmv2 @ 0xb42400 warning, clipping 1 dct coefficients to -255..255
21 juin 2014, par Elliot Blackburn[wmv2 @ 0xb42400]
warning, clipping 1 dct coefficients to -255..255I’m modifying some code in a C API that interacts between FFmpeg and and an AS3 Air application to encode a video after creating something.
WMV was working okay earlier but now I’ve set things back I’m getting this very peculiar warning coming from the c library but it doesn’t make any sense and googles not providing many answers.
I was wondering if anyone out there knew what this warning was about ? When the file comes back to me it’s totally empty with 0 frames. I must have changed something so I’m comparing the file from a few days ago with this one looking for anything that may have caused it to no longer work. But I was wondering if anyone had any better ideas than blindly looking through old and new code.
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Is there a way to mux a telemetry track into a mp4 video with ffmpeg ?
23 décembre 2019, par Emanuele SpatolaI’m trying to write a tool that read the telemetry track from a gopro video file, process it and write it back in the input file.
I can extract the telemetry track with this command :
ffmpeg -y -i GOPR0001.MP4 -codec copy -map 0:m:handler_name:" GoPro MET" -f rawvideo GOPR0001.bin
But I don’t know if it’s possible to mux the bin file back in the original file.
Are there other tools other than ffmpeg that allows to do it ?
Any suggestion would be greatly appreciated :)
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How to properly specify font file for ffmpeg as it's always defaulting to Arial ? [closed]
21 avril 2024, par Jim JansWhen calling ffmpeg it keeps defaulting to Arial-MT / Arial-BoldMT even when specifying a font. How do you correctly specify the fontfile ?


When specifying any font it will always default back :


[Parsed_subtitles_0 @ 000001915a83f800] fontselect: (DosisBold, 400, 0) -> ArialMT, 0, ArialMT


I am calling ffmpeg with the following command :


ffmpeg -i input.mp4 -vf subtitles='subtitle.srt':force_style='FontName=DosisBold,Alignment=10,Fontsize=24' output.mp4 -loglevel debug


I have a file called "DosisBold.ttf" in the same folder as ffmpeg. I have already tried FontName=DosisBold.ttf and it also doesn't work. All files are in the same folder as the ffmpeg.exe.


I have converted the .srt file to .ass and specified the font file but it still defaults back to ArialMT.


Format: Name, Fontname, Fontsize {...}
Style: SubStyle,DosisBold,24 {...}



I am using "ffmpeg-n7.0-latest-win64-gpl-7.0", I have tried different versions of ffmpeg (e.g. "ffmpeg-master-latest-win64-gpl") and still no change. Also tried different fonts / font files and it always defaults back to Arial.