
Recherche avancée
Autres articles (75)
-
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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 (...) -
MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (13674)
-
AVFrame data format
10 mars 2021, par Валентин НикинI process the raw data from AVFrame.data. Pixel format of this frames is AV_PIX_FMT_YUV420P. I want to understand in what range of values is this data located.


Seems UV (in YUV scheme) must be in [-128, 128] range, CbCr (in YCbCr) must be in [0, 255]. What scheme used in FFmpeg ?


-
Im trying to add Audio to a mute Video and it doesnt work
15 février 2021, par mybrainisrunningoutofmyearsI had two approaches :


1.ffmpeg-python


def addaudtovid(audpath,vidpath,savepath): 
 input_video = ffmpeg.input(vidpath)
 input_audio = ffmpeg.input(audpath)
 ffmpeg.concat(input_video, input_audio, v=1, a=1).output(savepath).run()



here for some reason it "cant find a file"(in the fourth line) but all files exist.
Tried this too :


subprocess.run("ffmpeg -i "+vidpath+" -i "+audpath+" -c copy "+savepath)



- 

- MoviePy.editor




Here the finished Video starts after about 3 seconds of blackscreen, but the Audio already starts at the beginning


videoclip = VideoFileClip(vidpath)
audioclip = AudioFileClip(audpath)
videoclip.audio = audioclip
videoclip.write_videofile(savepath)



The Audio and Video are exactly the same length


I am using Windows 10 python 3.8


I am happy about any idea how to fix it because I tried everything I could think and google of.


-
cannot get screenshot from ffmpeg, but the url is work for vlc
6 septembre 2021, par littlefishI am a newbie on FFmpeg, and it is a very powerful tool.

I am trying to do a snapshot every 30 seconds from the RTSP stream video, therefore I find a
public RTSP URL for testing.

Here is the RTSP URL I try :
rtsp://demo:demo@ipvmdemo.dyndns.org:5541/onvif-media/media.amp?profile=profile_1_h264&sessiontimeout=60&streamtype=unicast
- [a]

However, I can get the screen by using the VLC player.




But I try to do it on FFmpeg. It fails.
Do I do something wrong or anything I misunderstand ? ><

below is FFmpeg code. all are fail and get error.

ffmpeg -rtsp_transport tcp -y -i "rtsp://demo:demo@ipvmdemo.dyndns.org:5541/onvif-media/media.amp" -frames:v 1 test.jpg

# try remove `rtsp_transport`
ffmpeg -y -i "rtsp://demo:demo@ipvmdemo.dyndns.org:5541/onvif-media/media.amp" -frames:v 1 test.jpg





—


p.s. my computer is windows. but I get the same error on ubuntu.


[a] - https://ipvm.com/forums/video-surveillance/topics/need-rtsp-url-to-test-with

this URL can be found from here.