Posteet

Sacar imagenes de un video con ffmpeg

macks — Fri, 12 Mar 2010 18:15:50 +0100

import commands
import os

def execute():
        cmd = 'c:/ffmpeg/ffmpeg.exe -y -itsoffset -4 -i c:/input.mpg -vframes 1 -s 100x90 -f image2 c:/uploads/img_gen.jpg'
        #c = commands.getoutput(cmd) # linux
        c = os.system(self.cmd) #windows
        return c

[django] [ffmpeg] [librerias] [python] [soluciones] [tests]

Generar miniaturas con PIL

macks — Fri, 12 Mar 2010 18:12:44 +0100

def testImages(request):
    from PIL import Image
    path = ('c:/images/soluciones__1.jpg')
    #content = 'c:/images/soluciones1.jpg'
    content = 'c:/images/image.gif'
    image = Image.open(content)
    image.thumbnail((200,150), Image.ANTIALIAS)
    image.save(path, image.format)
    savelog(image.format)
    del image

[django] [PIL] [python] [tests]

manipular datos de una bd externa con django

macks — Thu, 04 Mar 2010 21:19:49 +0100

from django.db import load_backend, transaction, connection

#manipular datos de una bd externa

def sincronizeDB(self):
        myBackend = load_backend('mysql') # or 'mysql', 'sqlite3', 'oracle'
        myConnection = myBackend.DatabaseWrapper({
            'DATABASE_HOST': '192.168.1.11',
            'DATABASE_NAME': 'agenciaperu_local',
            'DATABASE_OPTIONS': {},
            'DATABASE_PASSWORD': "",
            'DATABASE_PORT': "",
            'DATABASE_USER': "root",})
        # Now we can do all the standard raw sql stuff with myConnection.
        myCursor = myConnection.cursor()        
        id = 22
        name = "tecnologia para jos"
        slug = "tecnologia_para_jos"
        row = myCursor.execute("INSERT INTO category(name, slug )  values(%s,%s);", [name, slug])
        row = myConnection._commit()
        #row = transaction.rollback_unless_managed()  -----> sería cuando trabajamos en local

# select simple
        #row = myCursor.execute("select *from category where id = %s and highlight = %s;",[id,0])
        myCursor.fetchall()

[django] [mysql] [python] [soluciones]

operar listas

macks — Thu, 25 Feb 2010 00:32:37 +0100

values = ['Enero','Enero','Enero','Febrero']
print  [(x,values.count(x)) for x in set(values)]

====>>[('Enero', 3), ('Febrero', 1)]

[boocle] [django] [python]

Import RSS

sm0k1nggnu — Mon, 22 Feb 2010 12:23:26 +0100





Blog Posts



Foo
%s", trim($link),utf8_decode(htmlspecialchars(trim($title))));
		
		//Ohne Beschränkung
		//printf("%s",utf8_decode(htmlspecialchars(trim($description))));
		
		//Mit Beschränkung
		$short = explode("n", wordwrap($description, 150, "n")); //Ausgabe auf n Zeichen kürzen
		printf("%s ...
mehr",htmlspecialchars(trim($short[0])));
		
		$title = "";
		$description = "";
		$link = "";
		$insideitem = false;
		$i++;
	}
}


function characterData($parser, $data) {
	global $insideitem, $tag, $title, $description, $link;
	if ($insideitem) {
	switch ($tag) {
		case "TITLE":
		$title .= $data;
		break;
		case "DESCRIPTION":
		$description .= $data;
		break;
		case "LINK":
		$link .= $data;
		break;
	}
	}
}

$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://blogurl.com/rss.php","r")
	or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
	xml_parse($xml_parser, $data, feof($fp))
		or die(sprintf("XML error: %s at line %d", 
			xml_error_string(xml_get_error_code($xml_parser)), 
			xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);

?>

[rss]

Récupérer la durée d'une vidéo avec ffmpeg depuis PHP

cyo — Sat, 20 Feb 2010 12:29:36 +0100

$videofile = "fichier.flv";

ob_start();
passthru("ffmpeg -i "{$videofile}" 2>&1");
$duration = ob_get_contents();
ob_end_clean();

$search='/Duration: (.*?),/';
$duration=preg_match($search, $duration, $matches, PREG_OFFSET_CAPTURE, 3);

echo $matches[1][0];


Pour récupérer la durée, en seconde, on peut utiliser cette fonction :

echo hms2sec($matches[1][0]);


function hms2sec ($hms) {
	list($h, $m, $s) = explode (":", $hms);
	$seconds = 0;
	$seconds += (intval($h) * 3600);
	$seconds += (intval($m) * 60);
	$seconds += (intval($s));
	return $seconds;
}

[dos] [durée] [ffmpeg] [fichier] [php] [vidéo]

Syntaxe à utiliser pour exclurer certains répertoires lors de la création d'une archive avec tar

cyo — Tue, 16 Feb 2010 20:11:23 +0100

tar cvfz myproject.tgz --exclude='path/dir_to_exclude1' --exclude='path/dir_to_exclude2' myproject

[archive] [compression] [exclusion] [répertoire] [shell] [tar]

Dernier jour du mois

benoitbalon — Mon, 15 Feb 2010 16:00:52 +0100

# Pour une raison ou pour une autre, on peut avoir besoin de vérifier si la date du jour est le dernier jour du mois. Sauf que le dernier jour du mois peut être un 28, un 29, un 30 ou un 31.

# La commande date du projet GNU (ne fonctionne pas sur Solaris) permet de retourner une date autre que celle du jour. Il suffit alors de vérifier si "demain" sera le premier, et d'exécuter la commande de son choix en conséquence...

test `date +'%d' -d '1 day'` -eq "1" && echo "hello world"

[bash] [date] [GNU]

Go Beyond Web-Safe Fonts with CSS3 - Inspect Element

stephanzr — Sat, 13 Feb 2010 23:08:32 +0100

@font-face {

     font-family: Anivers;

     src: url(../fonts/Anivers.otf) format("opentype");

}

[css3] [font-face]

separador de comas desde el template

macks — Fri, 12 Feb 2010 23:04:52 +0100

#template
{% load humanize %}
{{ my_num|intcomma }}

[django] [python] [soluciones] [templates]

reemplazar, cortar, y convertir de lista a cadena en una sola linea

macks — Wed, 10 Feb 2010 17:54:28 +0100

#form.cleaned_data['videoPath'] = C:Apacheuploadsvideosvideo_test.flv

path = form.cleaned_data['videoPath'].replace("\","/")
            vName = ''.join(path.split("/")[-1:])

#result = 'video_test.flv'

[django] [python] [tips]

Greasemonkey Scrip Gmail Signatures

joserobleda — Tue, 02 Feb 2010 22:58:20 +0100

// ==UserScript==
// @name           Gmail Signature
// @namespace      http*://mail.google.com*
// @description    Añade automaticamente una firma a gmail
// @include        http*://mail.google.com*
// ==/UserScript==

//window._window = document.getElementById("canvas_frame").contentWindow;
window.__change = function(data){

	if( data == "#compose" ){
		var canvasWindow = unsafeWindow.document.getElementById("canvas_frame").contentWindow;
		var composeWindow = canvasWindow.document.getElementsByTagName('iframe')[0].contentWindow;
		var composeBody = composeWindow.document.body;
		var currentValue = ( composeBody.innerHTML ) ? composeBody.innerHTML : "";
		
		composeBody.innerHTML = 'MI TEXTO' + currentValue;
	}
	unsafeWindow.console.log(data);

};
window.__check = function(){
	try{
		if( unsafeWindow.__hash != unsafeWindow.location.hash ){
			unsafeWindow.__hash = unsafeWindow.location.hash;
			__change( unsafeWindow.__hash );
		}
	}catch(e){};
};
window.__iniciar = function(){
	try{
		if( unsafeWindow.gmonkey ){
			try{
				if( document.getElementById("canvas_frame") ){
					unsafeWindow.__hash = "";
					//unsafeWindow.console.log( unsafeWindow.__hash  );
					window.setInterval( function(){ __check(unsafeWindow);}, 1000 );
				}
			}catch(e){};	
		} else {
			window.setTimeout( __iniciar, 1400 );
		}

	}catch(e){};
};
document.addEventListener("load", function(){
	window.setTimeout(function(){
		__iniciar();
	}, 1000);
}, true);

Preventing Cron Job Collision

spirit — Wed, 27 Jan 2010 22:18:00 +0100

$fp = fopen('/tmp/lock.txt', 'r+');  
  
if(!flock($fp, LOCK_EX | LOCK_NB)) {  
   echo 'Unable to obtain lock';  
   exit(-1);  
}  
   
/* ... */  

fclose($fp);

[collision] [cron] [php]

Blocking Web Access to Cron Jobs

spirit — Wed, 27 Jan 2010 22:15:50 +0100

if (isset($_SERVER['REMOTE_ADDR'])) die('Permission denied.');

[apache] [cron] [htaccess] [php] [security]

get extension of file

sx — Mon, 25 Jan 2010 22:40:16 +0100

echo substr($filename, strripos($filename, '.'),strlen($filename));

[php]