
Recherche avancée
Médias (1)
-
Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (39)
-
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.
Sur d’autres sites (6973)
-
Anomalie #3424 (Nouveau) : page de controle des forums dans l’espace privé : problème avec
14 avril 2015, par Maïeul RouquetteSPIP 3.0.17
un forum qui contient la ligne suivante
<code>\renewcommand{\emph}[1]{[[#1]]}
Sur http://geekographie.maieul.net/ecrire/?exec=controler_forum le
n'est pas échappé. Résultat le <code>{}
devient italique.J’avoue ne pas comprendre à quel niveau ce situe le bug.
-
Anomalie #2787 (Nouveau) : Bug d’interprétation d’une liste suivie de paragraphes
6 juillet 2012, par nicolas -En entrée dans un formulaire de forum : Faisons un test. - Premier item de liste. - Deuxième item de liste. - Troisième item de liste. Un paragraphe. Un autre. Encore un autre. En sortie : Faisons un test. Premier item de liste. Deuxième item de liste. Troisième item de liste. Un paragraphe. Un (...)
-
How to fetch video frame and its timestamp from ffmpeg to python code
14 février 2017, par vijiboySearching for an alternative as OpenCV would not provide timestamps which were required in my computer vision algorithm, I found this excellent article https://zulko.github.io/blog/2013/09/27/read-and-write-video-frames-in-python-using-ffmpeg/
Working up the code on windows I still could’nt get the frame timestamps.
I recollected seeing on ffmpeg forum somewhere that the video filters like showinfo are bypassed when redirected.Here’s what I tried :
import subprocess as sp
import numpy
import cv2
command = [ 'ffmpeg',
'-i', 'e:\sample.wmv',
'-pix_fmt', 'rgb24',
'-vcodec', 'rawvideo',
'-vf', 'showinfo', # video filter - showinfo will provide frame timestamps
'-an','-sn', #-an, -sn disables audio and sub-title processing respectively
'-f', 'image2pipe', '-'] # we need to output to a pipe
pipe = sp.Popen(command, stdout = sp.PIPE, stderr = sp.STDOUT) # TODO someone on ffmpeg forum said video filters (e.g. showinfo) are bypassed when stdout is redirected to pipes???
for i in range(10):
raw_image = pipe.stdout.read(1280*720*3)
img_info = pipe.stdout.read(244) # 244 characters is the current output of showinfo video filter
print "showinfo output", img_info
image1 = numpy.fromstring(raw_image, dtype='uint8')
image2 = image1.reshape((720,1280,3))
# write video frame to file just to verify
videoFrameName = 'Video_Frame{0}.png'.format(i)
cv2.imwrite(videoFrameName,image2)
# throw away the data in the pipe's buffer.
pipe.stdout.flush()So how to still get the frame timestamps from ffmpeg into python code so that it can be used in my computer vision algorithm ...