Recherche avancée
Autres articles (73)
-
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 -
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 -
Soumettre améliorations et plugins supplémentaires
10 avril 2011Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...)
Sur d’autres sites (8237)
-
how to scale server setup with ffmpeg for converting videos on website
26 mai 2020, par TomI have a website that will offer video conversion service with ffmpeg. Users will select some options and click a button to process and create a video. The site is currently using laravel/php. If there are many requests at the same time, how should I handle the scaling up ? How can it be done with traditional ISP ? How about cloud service, e.g. Amazon, Digital Ocean ?


-
Announcing Long Term Support in Piwik 2 – The analytics platform for your mission critical projects
11 janvier 2016, par Matthieu Aubry — About, DevelopmentWe are proud to announce our Long Term Support (LTS) for Piwik 2.X !
Why Long Term Support (LTS) ?
Part of our mission is to ready Piwik for the enterprise — and ready the enterprise for Piwik. Our fast release cycle and our ability to quickly innovate has served us well for the past seven years and has lead Piwik to being one of the most popular open source projects, used by over one million websites worldwide. But Piwik’s success today has also shown us that this fast release cycle is not suited for all users and customers. Like most large open source projects (such as Ubuntu, Firefox, Debian, Symfony, Node.js, etc.) at Piwik we now also offer a Long Term Support release which gives users the confidence that Piwik can be used for mission critical projects for months to come.
What does LTS mean for Piwik ?
For the duration of the LTS period, Piwik 2.X will continue to receive the following fixes :
- Critical bugs causing data loss or data corruption.
- Major and Critical security issues.
Our goal is to offer you a Piwik LTS release that you can trust for all your mission critical projects.
How long will Piwik 2.X be supported ?
Piwik 2.X will be supported for at least 12 months after the initial release of Piwik 3.0.0.
Piwik 3.0.0 is expected to be released in the second half of 2016.
This means that Piwik 2.X will be supported at least until the second half of 2017.Which Piwik version is LTS ?
The latest Piwik 2.16.X release is our Long Term Support version.
How do I benefit from the LTS version ?
To get the full benefits of Piwik LTS, please make sure you are using the latest LTS version. First, update to the latest Piwik 2.X version, then Configure Piwik to use the LTS release channel and then update to the latest LTS version.
How do I configure Piwik to use the LTS version ?
By default, Piwik will not use the LTS version. When you use the one-click update your Piwik instance will be updated to the very latest release : when Piwik 3.0.0 will be released, the one click update will update your instance to 3.0.0. It is however possible to configure your Piwik so that you will stay on Piwik 2.X and keep using the LTS Long Term Support version :
- Login Piwik as the Super User,
- Go to Settings > General > Update settings,
- Under “Release channel” click “Latest stable 2.X Long Term Support version”, and click “Save”.
How do I get professional Piwik Support ?
If you need professional support for your Piwik service get in touch with the Piwik PRO experts.
For other questions, feedback or discussion, feel free to join our forums and comment on this LTS forum post.
We wish you all a fantastic year 2016 !
-
How do I set the framerate/FPS in an FFmpeg code (C) ?
2 juin 2020, par Tobias v. BrevernI try to encode single pictures to a .avi video. The goal is to have every picture displayed for a set amount of seconds to create a slide show. I tried my script with 10 pictures and a delay of 1/5 of a second but the output file was not even half a second long (but displayed every picture). For setting the framerate I use the time_base option of the AVCodeContext :



ctx->time_base = (AVRational) {1, 5};


When I use the command
ffmpeg -framerate 1/3 -i img%03d.png -codec png output.avieverything works fine and I get the file I want. I use the png codec because it was the only one i tried that is playable with Windows Media Player.


Am I missing anything here ? Is there another option that has impact on the framerate ?



This is my code so far :



Note : I use a couple of self made data structures and methodes from other classes. They are the ones written in Caps Lock. They basicly do what the name suggests but are necessary for my project. The Input Array contains the pictures that i want to encode.



include <libavutil></libavutil>opt.h>
include <libavutil></libavutil>imgutils.h>
include <libavutil></libavutil>error.h>

void PixmapsToAVI (ARRAY* arr, String outfile, double secs)
{
 if (arr!=nil && outfile!="" && secs!=0) {
 AVCodec* codec = avcodec_find_encoder(AV_CODEC_ID_PNG);
 if (codec) {
 int width = -1;
 int height = -1;
 int ret = 0;

 AVCodecContext* ctx = NULL;
 ctx = avcodec_alloc_context3(codec);
 AVFrame* frame = av_frame_alloc();
 AVPacket* pkt = av_packet_alloc();

 FILE* file = fopen(outfile, "wb");

 ARRAYELEMENT* e;
 int count = 0;
 forall (e, *arr) {
 BITMAP bitmap (e->value, false);
 if (width < 0) {
 width = bitmap.Width();
 height = bitmap.Height();

 ctx->width = width;
 ctx->height = height;
 ctx->time_base = (AVRational){1, 5};
 ctx->framerate = (AVRational){5, 1};
 ctx->pix_fmt = AV_PIX_FMT_RGB24;
 ret = avcodec_open2(ctx, codec, NULL);

 frame->width = width;
 frame->height = height;
 frame->format = ctx->pix_fmt;
 av_opt_set(ctx->priv_data, "preset", "slow", 1);

 }
 ret = av_frame_get_buffer(frame, 1);
 frame->linesize[0] = width*3;

 bitmap.Convert32();
 byte* pixels = bitmap.PixelsRGB(); 

//The two methodes above convert the Pixmap into the RGB structure we need
//They are not needed to get an output file but are needed to get one that makes sense

 fflush(stdout);
 int writeable = av_frame_make_writable(frame);
 if (writeable>=0) {
 for(int i=0; i<(height*width*3); i++){
 frame->data[0][i] = pixels[i];
 }
 }
 ret = avcodec_send_frame(ctx, frame);
 for(int i=0; i= 0) {
 ret = avcodec_receive_packet(ctx, pkt);
 }
 count++;
 avcodec_receive_packet(ctx, pkt);
 fwrite(pkt->data, 1, pkt->size, file);
 fflush(stdout);
 av_packet_unref(pkt);
 }
 fclose(file);
 avcodec_free_context(&ctx);
 av_frame_free(&frame);
 av_packet_free(&pkt);

 }
 }
} 








Syndiquer tout le site
