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Autres articles (45)
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Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
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 (...)
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How to extract video clip from larger video based on specific time and duration
26 juillet 2022, par user19019404I have video clips that get created. Each video is recorded for 5 minutes and starts at a time e.g. 10:01:20 to 10:06:19 then the next video from 10:06:20 etc. These videos are recorded at a specific frame rate, be it 5 frames or 30 frames (its dependent on the platform making the recording). The net result is NOT a 5 minute video clip but might be a 2 minute video clip (where everyone moves very quickly in the view as a result of the frame rates). I cannot restrict a 1 to 1 recording as these are generated by external systems.


I need to extract specific portions out of the video. For example I need to extract from 10:03:10 to 10:03:35 (25 seconds). This would equate to 10 seconds into the video up to 14 seconds into the video, in those 4 seconds of video, 25 real world seconds are displayed.


My question is do you have any guidance as to how I can calculate that each second of recording actually means 10 or 12 seconds in real life, therefore go to this frame and record to this frame for example.


I have been looking at cv2.CAP_PROP_FPS to get the video frame rates, CAP_PROP_POS_MSEC and CAP_PROP_FRAME_COUNT and believe the answer might lie there, but not sure.


The thinking being if I work out the frame rate of the video, the total frames then I can divide the one by the other to get to how many frames make up real world seconds (this is where I fail). This way I can run from frame to frame as a result.


Thank you


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FFMPEG with Windows Application
27 décembre 2015, par lucidmaj7I want to develop Simple mp3 file player(just open, play and stop)
I found ffmpeg lib that can decode mp3 file and try to develop my player .
I can decode mp3 file with this lib, but don’t render to real sound..
On Most Other mp3 player Application, How decode mp3 file and render real sound on Windows ?
SDL ?, Direct sound ? WASAPI ? ..
How I listen rendered sound...
Please give me a hint , Keyword or example source code..
( I use C++, WINAPI, MFC)
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Revision 2488cb34bc : Optimize bilinear sub-pixel filters in sse2 Using bilinear filters could speed
30 janvier 2014, par Yunqing WangChanged Paths :
Modify /vp9/common/x86/vp9_asm_stubs.c
Add /vp9/common/x86/vp9_subpixel_bilinear_sse2.asm
Modify /vp9/vp9_common.mk
Optimize bilinear sub-pixel filters in sse2Using bilinear filters could speed up the codec in real-time mode.
This patch added sse2 optimizations of bilinear filters that
operate on different-sized blocks.Tests showed that the real-time encoder was speeded up by 3%.
Change-Id : If99a7ee4385fcc225c3ee7445d962d5752e57c3f