Recherche avancée
Autres articles (41)
-
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Initialisation de MediaSPIP (préconfiguration)
20 février 2010, parLors de l’installation de MediaSPIP, celui-ci est préconfiguré pour les usages les plus fréquents.
Cette préconfiguration est réalisée par un plugin activé par défaut et non désactivable appelé MediaSPIP Init.
Ce plugin sert à préconfigurer de manière correcte chaque instance de MediaSPIP. Il doit donc être placé dans le dossier plugins-dist/ du site ou de la ferme pour être installé par défaut avant de pouvoir utiliser le site.
Dans un premier temps il active ou désactive des options de SPIP qui ne le (...) -
Taille des images et des logos définissables
9 février 2011, parDans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)
Sur d’autres sites (5295)
-
Pims.open Throws "UnkownFormat Error" with "Invalid Argument" On One Machine But Not on Another
12 août 2021, par KaceBellamyI'm trying to do some video processing for a physics experiment, and I want to do it on my much more powerful Windows desktop computer as opposed to my Mac laptop.


The following code works like a dream when run as a Jupyter notebook on my Mac :


import matplotlib as mpl
from mpl_toolkits import mplot3d
import pims
import trackpy as tp 

@pims.pipeline
def gray(image):
 return image[:, :, 1] # Take just the green channel

frames = gray(pims.open('output.mp4'))


but on my Windows machine I get this error :


---------------------------------------------------------------------------
UnknownFormatError Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_12152/704954007.py in <module>
 1 #Actually converts the video. Might be VERY processor intensive... or not?
----> 2 frames = gray(pims.open('output.mp4')) #Make the File Name whatever file you like!

~\miniconda3\lib\site-packages\pims\api.py in open(sequence, **kwargs)
 207 warn(message)
 208 exceptions += message + '\n'
--> 209 raise UnknownFormatError("All handlers returned exceptions:\n" + exceptions)
 210 
 211 

UnknownFormatError: All handlers returned exceptions:
<class> errored: [Errno 22] Invalid argument: 'output.mp4'
<class> errored: [Errno 22] Invalid argument: 'output.mp4'
<class> errored: Could not load meta information
=== stderr ===

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 9.2.1 (GCC) 20200122
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
C:\Users\Callum\OneDrive - The University of Chicago\output.mp4: Invalid argument
<class> errored: MoviePy error: failed to read the duration of file output.mp4.
Here are the file infos returned by ffmpeg:

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 9.2.1 (GCC) 20200122
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
output.mp4: Invalid argument
</class></class></class></class></module>

output.mp4 is just a run of the mill video file taken on a CCD camera ; I've tried converting it to a .MOV, I've tried other video files taken on different cameras, and I've tried running the file through FFmpeg to impose a 30 fps framerate ; everything I've tried works fine on my Mac and throws the above error on my Windows machine.


For reference, I installed necessary packages for this code on both machines this morning, so it should all be up to date and the same on both.


Any ideas as to what's up ? Thanks !


-
Trying to convert an RTSP stream to a HSL file, but get a "Failed to Open Segment" error
1er juin 2021, par Alvydas JuodikisThese are the linux commands I ran on ubuntu 20.04 to convert an rtsp stream to a HLS file. I was trying to then display it onto my html webserver to run a live video but I'm stuck at an error.


ffmpeg -fflags nobuffer \
 -rtsp_transport tcp \
 -i <my rtsp="rtsp" url="url"> \
 -vsync 0 \
 -copyts \
 -vcodec copy \
 -movflags frag_keyframe+empty_moov \
 -an \
 -hls_flags delete_segments+append_list \
 -f segment \
 -segment_list_flags live \
 -segment_time 0.5 \
 -segment_list_size 1 \
 -segment_format mpegts \
 -segment_list Home/Desktop/fmpegsolution/index.m3u8 \
 -segment_list_type m3u8 \
 -segment_list_entry_prefix Home/Desktop/fmpegsolution/ \
 Home/Desktop/fmpegsolution/%3d.ts
</my>

I'm using an example from this link :
https://girishjoshi.io/post/ffmpeg-rtsp-to-hls/


I try to generate my file into a directory located in my desktop called fmpegsolution (hence the output path Home/Desktop/fmpegsolution)


The error :


When running this on terminal, the error comes out to :

[segment @ 0x558c82e11ec0] Opening 'Home/Desktop/fmpegsolution/000.ts' for writing [segment @ 0x558c82e11ec0] Failed to open segment 'Home/Desktop/fmpegsolution/000.ts' Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory

My issue is related to the folder or directory but it definitely exists. I even tried creating a "%3d.ts" blank file (000.ts) but that had no effect. Could use some help. Thanks for your time.


-
FFMPEG 4.2.4, Python 3.9 : "ffmpeg : error while loading shared libraries : libopenh264.so.5 : cannot open shared object file : No such file or directory"
7 mars 2021, par WilanI'm using ffmpeg 4.2.4 and Python 3.9


Currently getting error :

ffmpeg: error while loading shared libraries: libopenh264.so.5: cannot open shared object file: No such file or directory

Tried the solutions from these links but they didn't work :

ffmpeg : error while loading shared libraries : libopenh264.so.5

Ffmpeg error in linux

If anyone has any idea how to fix it, or needs any more information, please let me know.


Syndiquer tout le site
