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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Les autorisations surchargées par les plugins
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autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
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CommonJS/Browserify support fix
4 janvier 2015, par luis-almeidaCommonJS/Browserify support fix
"jquery.fileupload.js" was still missing the cJS module definition.
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Chrome extension Use FFMpeg
28 décembre 2014, par VillieI am developing a chrome extension where I have to record the video stream from chromes desktopCapture API. I was initially using whammy.js but the video quality was poor for higher resolutions.
Now I am planning to use ffmpeg to record the video stream by writing a nacl module.
While going through the blogs I found out that chrome has included ffmpeg for playing out videos.So is there an api where I can use chrome’s ffpeg from nacl to record video of the video stream ?
Tks
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How should I add a transparent watermark.png over my RTMP h264 stream with ffmpeg ?
16 juin 2013, par RoelandPI have a Raspberry Pi with the new camera module hooked up to (in this case) Bambuser. You can see the stream here, it's from a windmill in The Netherlands (camera position will be better within a few weeks).
I succesfully have the stream running, but now I want to add an image (alpha transparent png) on top of the input-stream which is piped to ffmpeg to be streamed to Bambuser.
I currently use the following command (user specific details wiped out) to succesfully stream the input from the Raspberry Camera module (it's great, HD & all, hardware rendering) to Bambuser, following the great tutorial by Slickstreamer :
raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg -i - -vcodec copy -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X
I followed the docs about ffmpeg and it seems to me I should use the '-vf'-command to apply the 'movies :' filter, like so :
raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg -i - -vf "movie='/home/USER/watermark.png' [logo]; [in][logo] overlay=main_w-overlay_w-10:10 [out]" -vcodec copy -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X
and various other -vf commands, like '-vf vflip' or '-vf mandelbrot'. But it doesn't seem to work, as the stream just shows the direct input from the Raspberry Camera.
This is the output when started with the following -vf command :
raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg -i - -vcodec copy -vf 'movie=0:png:/home/USER/watermark.png [watermark];[in] [watermark]overlay=0:0:1[out]' -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X
ffmpeg version N-54036-g6c4516d Copyright (c) 2000-2013 the FFmpeg developers built on Jun 15 2013 XX:XX with gcc 4.6 (Debian 4.6.3-14+rpi1) configuration : libavutil 52. 35.101 / 52. 35.101 libavcodec 55. 16.100 / 55. 16.100 libavformat 55. 8.102 / 55. 8.102 libavdevice 55. 2.100 / 55. 2.100 libavfilter 3. 77.101 / 3. 77.101 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 [h264 @ 0x1917cc0] max_analyze_duration 5000000 reached at 5000000 microseconds Input #0, h264, from 'pipe :' : Duration : N/A, bitrate : N/A Stream #0:0 : Video : h264 (High), yuv420p, 960x540, 25 fps, 25 tbr, 1200k tbn, 50 tbc Output #0, flv, to 'rtmp ://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X' : Metadata : title : STREAM NAME encoder : Lavf55.8.102 Stream #0:0 : Video : h264 ([7][0][0][0] / 0x0007), yuv420p, 960x540, q=2-31, 25 fps, 1k tbn, 1200k tbc Stream mapping : Stream #0:0 -> #0:0 (copy) frame= 2344 fps= 27 q=-1.0 size= 4827kB time=00:01:33.72 bitrate= 421.9kbits/s
As mentioned above, other -vf filters also don't seem to apply on the output stream on Bambuser, I think I fundamentally do something wrong here.
- Should I map the Raspivid-stream and map the image 'watermark.png' on top of that ? Would that be the solution ? Anyone experience with this ?
Thank you very much for your thoughts in advance.