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Médias (1)
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (95)
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Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Gestion des droits de création et d’édition des objets
8 février 2011, parPar défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;
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Supporting all media types
13 avril 2011, parUnlike 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 (6719)
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avconv video from single jpg and ogg [migrated]
25 mars 2013, par plukeI have a long ogg sounds file that I want to put on youtube, I don't have a video so want to display a single jpg for the duration for the ogg. I've seen :
avconv -i "sound file.ogg" -i cog.jpg out.avi
I have adjusted the jpg to be 640 x 480 but I get the following warnings :
Incompatible pixel format 'yuvj420p' for codec 'mpeg4', auto-selecting format 'yuv420p'
Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt'
[ac3 @ 0x18ae340] invalid bit rateAnd it bombs out on :
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height
Any ideas on what parameters I could use to make this work ?
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ffmpeg Muxing Recovered Files - Audio dropping
7 avril 2020, par Chris McLA few years ago, we accidentally deleted all our home movies. We recovered the files from the camera. They have lost their headers and are not playable. I have used a recovery program (recover_mp4) to get an h264 and aac file.



When I try to mux these together, the audio drops off from the stream. It also crackles badly at times. If I play the AAC file by itself, it sounds fine. For some movies, the audio works for a while, on others it drops out quickly.



One thing I noticed is that the resulting muxed mp4 file is often shorter than the audio.



I've tried various ffmpeg commands that look generally like this :



ffmpeg -r 30000/1001 -i recovered_video.h264 -i recovered_audio -bsf:a aac_adtstoasc -c:v copy -c:a copy output.mp4



Any ideas on how to marry the two files together ?


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How can one pipe the audio waveform image out of ffmpeg into an image display command/application ? [closed]
15 mai 2022, par espThese two commands, when used in succession, produce a .png file of the inputted audio waveform.


ffmpeg -i audioFile.mp3 -filter_complex "showwavespic=s=640x120" -frames:v 1 imageFile.png
qlmanage -p imageFile.png



But I have not succeeded in piping the image from the first to the second. Simply using "|" between them did not work.


ffmpeg -i audioFile.mp3 -filter_complex "showwavespic=s=640x120" -frames:v 1 |
qlmanage -p



Error :


Filter showwavespic has an unconnected output



Sounds pretty fundamental !


Please, how can what I am trying to do be achieved ?