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Médias (1)
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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (91)
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Les vidéos
21 avril 2011, parComme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash 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" ; -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...)
Sur d’autres sites (8333)
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Heroku. Flask. App works correct on local machine but works incorrect on Heroku
19 juin 2016, par andrey durovI use ffmpeg buildpack.
heroku run "ffprobe http://91.192.180.66:1935/tv-channels/stream02/playlist.m3u8"
works correct.My code :
<?php
// require('../vendor/autoload.php');
function run($url){
$testArr=[];
exec("timeout 20s ffprobe $url".' 2>&1',$output);
foreach ($output as $i) {
if (strpos($i, 'kb/s') !== false) {
array_push($testArr,$i);
}
print_r("test<br />");
}
print_r($testArr);
if ($testArr){
return "good";
}
else{
return "bad";
}
}
print_r(run("http://91.192.180.66:1935/tv-channels/stream02/playlist.m3u8"));
return "ok";
?>It works correct on local machine, and returns :
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
test
Array ( [0] => Stream #0:2: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 108 kb/s ) goodOn heroku it works incorrect and returns :
test
Array ( ) badMy Procfile :
web: vendor/bin/heroku-php-apache2 web/
Source :
https://github.com/taketa/testStream.gitI’am new in Flask and has no idea how to fix it. Very need your help
Thanks. -
Extract individual frames from video and pipe them to StandardOutput in FFmpeg
13 novembre 2019, par Nicke ManarinI’m trying to extract frames from a video using FFmpeg. But instead of letting FFmpeg write the files to disk, I’m trying to get the frames directly from
StandardOutput
.I’m not sure if it’s feasible. I’m expecting to get each frame individually as they get decoded by reading and waiting until all frames are extracted.
With the current code, I think that I’m getting all frames at once.
Command
ffmpeg -i "C:\video.mp4" -r 30 -ss 00:00:10.000 -to 00:01:20.000 -hide_banner -c:v png -f image2pipe -
Code
var start = TimeSpan.FromMilliseconds(SelectionSlider.LowerValue);
var end = TimeSpan.FromMilliseconds(SelectionSlider.UpperValue);
var info = new ProcessStartInfo(UserSettings.All.FfmpegLocation)
{
Arguments = $" -i \"{VideoPath}\" -r {fps} -ss {start:hh\\:mm\\:ss\\.fff} " +
"-to {end:hh\\:mm\\:ss\\.fff} -hide_banner -c:v png -f image2pipe -",
CreateNoWindow = true,
ErrorDialog = false,
UseShellExecute = false,
RedirectStandardError = true,
RedirectStandardOutput = true
};
var process = new Process();
process.StartInfo = info;
process.Start();
while (!process.StandardOutput.EndOfStream)
{
if (_cancelled)
{
process.Kill();
return;
}
//This returns me the entire byte array, of all frames.
var bytes = default(byte[]);
using (var memstream = new MemoryStream())
{
process.StandardOutput.BaseStream.CopyTo(memstream);
bytes = memstream.ToArray();
}
}
I also tried to use
process.BeginOutputReadLine()
and wait for each frame inOutputDataReceived
. But it returns parts of each frame, like the 10 first bytes, than other 50 bytes, it’s erratic.Is there any way to get the frames separately via the output stream ?
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ffmpeg closes with return code 137
26 juin 2022, par Adi UliciI am using ffmpeg to convert videos and about 66% of the times doesn't do it's job until the end. It simply gets killed, closes before it ends the job, and returns "137" instead of "0".



I can't seem to find anywhere some information about this return code. Does anyone know some tips or where can I find further guidance ? Thanks