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Médias (1)
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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (36)
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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" (...) -
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
Sur d’autres sites (6087)
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FFMPEG + SDL : How To Show Multi Frames In Separate Region ?
19 mai 2014, par user3051473I’m using ffmpeg and SDL to develop an camera monitor APP and I want to show four separate streams at the same time(via four rtsp source). As following figure out :
Now I achieve this by setting the SDL display region, and I identify different display region by using the different SDL_Rect identifying by the variable i(from 1 - 4).
But this cause the efficient problem. For every region, I need to scale to the whole screen and lock/unlock screen, then display.
I’m wondering that, Can I merge 4 different AVFrame(come from REG1 - REG4) into the whole picture and then show this picture ?
Hope that the describe about is detail enough for you to konw my problem.
Also thanks for your help.-------------------
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- REG1 - REG2 -
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- REG3 - REG4 -
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public void ShowFrame(AVFrame *pFrame, AVCodecContext *pCodecContext)
{
SDL_LockYUVOverlay(pBmp);
AVPicture pict;
// TODO scale pFrame to pict
// ...
SDL_UnlockYUVOverlay(pBmp);
// WIDTH and HEIGHT represent the whole screen size
SDL_Rect rect;
rect.x = (WIDTH / 2) * (i % 2);
rect.y = (HEIGHT / 2) * (i > 1 ? 1: 0);
rect.w = WIDTH / 2;
rect.h = HEIGHT / 2;
SDL_DisplayYUVOverlay(pBmp, &rect);
} -
fate/microsoft : add mss2 region test case
4 novembre 2022, par Peter Ross -
avfilter/scale_vulkan : add dynamic crop region and aspect ratio match
26 novembre 2024, par Koushik Duttaavfilter/scale_vulkan : add dynamic crop region and aspect ratio match
The scale_vulkan filter initializes the shader once, with the crop
region set by the original frame. However, subsequent frames may
specify a different crop region than the first frame. This change
updates the cropping to match the behavior present on the other
hardware frame scale filters.The scale filter should also allow negative values
that respect aspect ratio, similar to other scale filters.Signed-off-by : Koushik Dutta <koushd@gmail.com>