
Recherche avancée
Autres articles (65)
-
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...) -
Changer son thème graphique
22 février 2011, parLe thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
Modifier le thème graphique utilisé
Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
Il suffit ensuite de se rendre dans l’espace de configuration du (...) -
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 ;
Sur d’autres sites (7284)
-
run ffmpeg from PHP web script
18 février 2014, par it6I need to manage the recording/capture of a website mindwhile it is running a slide-show to get videos form these slides.
My approach is :
<?php
define('FFMPEG_LIBRARY', '/usr/bin/ffmpeg ');
$ffmpegcmd = "ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 /tmp/output.mpg";
shell_exec($ffmpegcmd);
?>But i get this error from php error log :
[x11grab @ 0x81e8aa0] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 800 height: 600
No protocol specified
No protocol specified
[x11grab @ 0x81e8aa0] Could not open X display.
:0.0: Input/output errorSimilar command from console run good.
Please, any help to get display and be able to control ffmpeg from browser php script ?
Thanks in advance.
thanks for your time.
I got rid the X display error, but not I still haven't got the capture.
Using xvfb I get an unknown file at /tmp written by www-data user :
rw-r—r— 1 www-data www-data 11252 Sep 12 09:49 server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm
Running startx I got also an unknown file at /tmp
rw------- 1 www-data www-data 59 Sep 12 09:53 serverauth.oLcFlG7tXC
any of both grow in size so it is not capturing anything. The content is some binary thing.
What are those files about ?What I am trying is to write a script in which I can control the time ffmpeg is capturing the desktop to create a video from a jquery slide displayed on a website.
My try from console is closer, but if I can do it by browser I will be able to know when to stop sending an AJAX request once the slide is finished.
This is my try from console :
#!/bin/bash
# start the slide website: I will need to change it to control by querystring the language and course level
firefox http://www.languagecourse.net/vocabulary-trainer.php &
# start recording: I will need to adjust the frame to capture
ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 /tmp/output2.mpg &
# since I can't control the time a course takes I pause an arbitrary time
sleep 5
# look for the capture PID and close it
for i in $(ps aux | grep ffmpeg | sed "s/ */#/g" | cut -f2 -d#)
do
echo "proceso $i killed"
kill -9 $i
doneI wonder once the website is opened I can continue doing the control from AJAX, but not know if I will be able to get the ffmpeg PID to stop the command.
I will appreciate any kind of comments.
Regards,
·_- -
Convert swf file to mp4 file using FFMPEG [migrated]
24 septembre 2012, par user1624004I now want to show an html5 video on a html page.
Now I have an sample.swf file, I want to convert it to .mp4 or .ogg or .webm file.
I have tried :
ffmpeg -i sample.swf sample.mp4
But I got this error :
[swf @ 0000000001feef40] Could not find codec parameters for stream 0 (Audio: pcm_s16le, 5512 Hz, 1 channels, 88 kb/s): unspecified sample format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[swf @ 0000000001feef40] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, swf, from 'sample.swf':
Duration: N/A, bitrate: N/A
Stream #0:0: Audio: pcm_s16le, 5512 Hz, mono, 88 kb/s
Stream #0:1: Video: mjpeg, yuvj444p, 1024x768 [SAR 100:100 DAR 4:3], 16 fps, 16 tbr, 16 tbn
File 'sample.mp4' already exists. Overwrite ? [y/N] y
Invalid sample format '(null)'
Error opening filters! -
suggestions for using protocol to stream images
10 décembre 2013, par Abdul AliThe target is that a user sends a stream of images to a server. The server should forward those to a media server for showing as a live continuous video to clients.
following are the thought for implementing, kindly tell if they are ok.
Use a lightweight rtmp server to accept stream of images from a user (please suggest if this is even possible via rtmp and if it cab be easiy and efficiently done otherwise)
use ffmpeg to use the rtmp (or other) url as input and send those images to ffserver for streaming. (am also confused here, if ffserver is fed with images continuosly, can it show those images as video as long as the images are coming)