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Autres articles (58)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP 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" (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
Sur d’autres sites (6653)
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how to improve the quality of resultant video when merging audio-video with ffmpeg ?
6 novembre 2015, par R.SWhen merging an audio and video with ffmpeg, the quality of the resultant video goes down. How to we improve the quality(esp. the audio quality) ?
The audio quality gets degraded to quite an extent with random screeches in between.
I’ve tried converting the audio to mp3 and video to mp4 before merging them, tried various audio-video parameters like bitrate, sample-rate, qscale etc but still unsuccessful.
Any help would be greatly appreciated ! -
Best video format for video processing and converting to mp4
29 août 2014, par Max GrigorievI may have video in selected format and I should make some video changes - add logo to the whole video as example and then convert to mp4. Right now original file is in h.264/mp4 format too. As I understand to add logo original file should be decoded to frames then logo should be added and then frames should be encoded to H.264 and packed to mp4. Since I’m newbie in video processing maybe there’s a raw video format which removes decoding stage and it saves time and cpu ?
Thanks
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Rendering list of images over a video with ffmpeg does not work if video has audio
12 mai 2023, par Alex StirkenI'm using FFmpegKit for Flutter to render a list of changing images onto a video.
Im using the following arguments :


final arguments = [
 '-y',
 '-i', inputVideoPath,
 '-framerate', '$fps',
 '-start_number', '100',
 '-i', '${tempDirectoryPath}/%3d.png',
 '-filter_complex', '[1:v]scale=720:1280 [ovrl]; [0:v][ovrl]overlay=0:0,format=yuv420p[v]',
 '-map', '[v]',
 '-c:v', 'libx264',
 "-preset", "medium",
 '-pix_fmt', 'yuv420p',
 '-shortest',
 '$outputFilePath'
];



It works like a charm as long as the video file (.mp4) has no audio stream. If the video has an audio stream, only the first image is getting rendered (overlayed) over the video.


Any suggestions ?