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Autres articles (46)
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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" (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...)
Sur d’autres sites (6933)
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Unwarping 180 VR Footage with FFmpeg v360 Filter
5 avril 2021, par Ted WilmontI am struggling at present. I have searched high and low for days and can't find a command that achieves what we want to do.


We have stereoscopic 180 degrees VR footage in a side-by-side equirectangular format that we want to convert to flat so we can process using further AI software.


We have already split the file in half across the width using FFmpeg so we have a "right" eye and a "left" eye video file.


For each video file, we need to convert the 180-degree equirectangular footage to a flat, unwarped video file using FFmpeg (and the v360 filter).


We've tried the following for example :


ffmpeg -i 2LEFT.mp4 -vf "v360=input=equirect:ih_fov=180:iv_fov=180:output=flat" 2LEFTTEST.mp4



However, this results in a very warped/misaligned video.


Some command examples, tips, suggestions as to convert the now monoscopic 180-degree equirectangular footage to a flat video file will be greatly appreciated.


Thank you for your help in advance.


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ffmpeg missing image frames in generated video from images
4 août 2013, par sihrcSimilar question here, but not yet answered.
Problem :
I'm combining images (.png) of same resolution/size (they all came from the same matplotlib.pyplot), but the resulting video is missing several frames.
Command :
ffmpeg -f image2 -r 1 -i .\\images\\image%02d.png -c:v libx264 -r 30 .\\images\\output.mp4
Resulting Video
- Length of 0:09
- Missing more than half the images
Images
- .\images
- image00.png
- image01.png
- image02.png
- image03.png
- image04.png
- image05.png
- image06.png
- image07.png
- . . .
Notes :
I followed examples from here. I'm new to using ffmpeg, so I may not be completely sure of what each of the command line options I've used means, though I have a pretty good idea.
Thanks, any help/advice/suggestions will be greatly appreciated. I am also perfectly willing to provide further information that may help resolve this issue.
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avplay : Handle pixel aspect ratio properly
6 juillet 2014, par Martin Storsjö