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Médias (1)
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Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (35)
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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 -
Publier sur MédiaSpip
13 juin 2013Puis-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 -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...)
Sur d’autres sites (9633)
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Figure out artifact level in a frame decoded by libavcodec/h264
1er juillet 2014, par dtumaykinI am using libavcodec to decode a H264 stream. As the stream is received from network, sometimes NALs can be missing, resulting in artifacts in the frame. The frame is afterwards rendered with DirectShow.
When there is an error during decoding, it is signaled by libavcodec log callback. The problem is - some artifacts will persist though multiple frames and libavcodec won’t signal artifacts for the frames following the broken one.
I would like to render only frames below certain artifacts level, while avoiding to show frame that are too "broken". Can an artifact level of a decoded picture be figured out through a libavcodec API, or I need to detect those artifacts by myself (in such case, are there any best practices ?) ?
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Batch convert .pcm files to .wav files in PowerShell using ffmpeg
17 mai 2023, par JordyI'm trying to make a script that converts all .pcm files in a folder to .wav files using ffmpeg.
Following files are in the same folder :


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- the script (.ps1)
- ffmpeg.exe
- the .pcm audio files








$oldfiles = Get-ChildItem -Filter "*.pcm" -Recurse
foreach ($oldfile in $oldfiles) {
 $newfile = [io.path]::ChangeExtension($oldfile, '.wav')
 .\ffmpeg.exe -f s16le -ar 24000 -i $oldfile $newfile
}



For some reason the script is doing nothing and the .pcm files just persist in the folder.


Run the script with PowerShell within the same folder of the .pcm files and ffmpeg.exe.
I would expect that the .pcm were converted to .wav files.


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FFMPEG : merge mkv + audio + subtitles [closed]
24 décembre 2022, par vespinoI have a 4K video with Japanese audio and a 1080p video with English audio. I have extracted the audio from the English video file and would like to know how to merge the following files :


jap_video.mkv
eng_audio.acc
nld_subtitles.srt



I don't mind the original audio and subtitles overwritten, I would like to end up with just 1 file containing my audio and my subtitles.


This is how I merge jap_video.mkv + eng_audio.acc


ffmpeg -i jap_video.mkv -i eng_audio.acc -c:v copy -map 0:v:0 -map 1:a:0 output.mkv



Following this I merge output.mkv + nld_subtitles.srt


ffmpeg -i output.mkv -f srt -i nld_subtitles.srt -map 0:0 -map 0:1 -map 1:0 -c:v copy -c:a copy -c:s srt -metadata:s:s:0 language=nld output_srt.mkv



This works fine, but is it possible in one command ? A nice to have would be to name both audio and subtitles as I'm doing with the second command.