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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (89)
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Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...) -
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 -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)
Sur d’autres sites (5873)
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avcodec/cbs_h266 : stricter validation for subpicture's max width and height
23 novembre 2024, par Nuo Mi -
ffmpeg - force_original_aspect_ratio=increase - stretches video height but not width [closed]
10 février, par RhysI am trying to concat 3 videos. But the middle video, is only stretching in height.


test1.mp4
test2.mkv
test3.gif



Which have been encoded into mp4s with ffmpeg


test1.mp4
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt709, progressive), 720x1280 [SAR 1:1 DAR 9:16], 30 fps, 30 tbr, 90k tbn

test2.mp4
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 538x662 [SAR 1:1 DAR 269:331], 30 fps, 30 tbr, 90k tbn

test3.mp4
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 333x592 [SAR 1:1 DAR 9:16], 30 fps, 30 tbr, 90k tbn



When I attempt the concat them.
test3.gif
scales up to fit the screen. Buttest2.mkv
only scales up its height to fit the screen. (Its width does not increase to match)

When using, force_original_aspect_ratio=decrease,
test2.mkv
has correct aspect ratio (does not stretch) ... but does not stretch to fit screen (1280x720) ... it just sits in the middle of the screen like a thumbnail. Whereastest3.gif
correctly scales up to fit the screen.

When using, force_original_aspect_ratio=increase,
test2.mkv
has the incorrect aspect ratio (only the height scales up to fit the screen) ... but the width does not scale up and the video appears squashed in width.

These are the codes I am using for both examples,


force_original_aspect_ratio=increase


ffmpeg -f concat -i mylist.txt -vf scale=force_original_aspect_ratio=increase,setsar=1 merged_video2.mp4



force_original_aspect_ratio=decrease


ffmpeg -f concat -i mylist.txt -vf "scale=720:1280:force_original_aspect_ratio=decrease:eval=frame,pad=720:1280:-1:-1:color=black" merged_video2.mp4



Question


How can I get test2.mkv width to scale up with the height ? So the aspect ratio stays fixed.


test2.mkv has a DAR 269:331 and the other 2 videos both have, DAR 9:16 ... could this be causing the problem ?


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avfilter/vf_convolve : unbreak non-power of 2 width&height filtering
23 décembre 2017, par Paul B Mahol