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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
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Les autorisations surchargées par les plugins
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autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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 -
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.
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The Ultimate Guide to HeatMap Software
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Why do I get "method DESCRIBE failed : 401 Unauthorized "
28 juillet 2021, par TheOliveTurtleLet me explain my problem, I am trying to access different channels in a DVR system.
I have successfully gotten access to a single camera (channel 1) by using opencv as such :


public_link = 'rtsp://test:test@192.168.1.48/cam/realmonitor'

cap = cv2.VideoCapture(public_link, cv2.CAP_FFMPEG)



The problem is I can't access the other channels with these parameters :


public_link = 'rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0'

cap = cv2.VideoCapture(public_link, cv2.CAP_FFMPEG)



I've tried the following links :


- 

- rtsp ://test:test@192.168.1.48/cam/realmonitor ?channel=3&subtype=0
- rtsp ://test:test@192.168.1.48/cam/realmonitor ?channel=3&subtype=1
- rtsp ://192.168.1.48/cam/realmonitor ?channel=3&subtype=0&authbasic=dGVzdDp0ZXN0








I get this following error :




[rtsp @ 00000201ce582cc0] method DESCRIBE failed : 401 Unauthorized




I've noticed that even if I test with this URL (rtsp ://test:test@192.168.1.48/blablabla) it works just fine ! (ONLY Channel #1) but when I insert the symbol '=' into the URL string, I get the above error.


It's really frustrating, Any sort of help would be much appreciated.


PS : the user 'test' has admin privileges in the system.


I've tried to run the test with plain ffmpeg command like such :

ffmpeg -loglevel debug -i "rtsp://test:test@192.168.1.48/cam/monitor?channel=3&subtype=0" ./folder/output.m3u8


I get the following error :


PS C:\Users\cjhou> ffmpeg -loglevel debug -i "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0" .\folder\output.m3u8 
ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Reading option '-i' ... matched as input url with argument 'rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0'.
Reading option '.\folder\output.m3u8' ... matched as output url. 
Finished splitting the commandline. 
Parsing a group of options: global. 
Applying option loglevel (set logging level) with argument debug. 
Successfully parsed a group of options. 
Parsing a group of options: input url rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0.
Successfully parsed a group of options.
Opening an input file: rtsp://houssem:152400@192.168.1.48/cam/realmonitor?channel=3&subtype=0.
[tcp @ 000001882b592240] No default whitelist set 
[tcp @ 000001882b592240] Original list of addresses: 
[tcp @ 000001882b592240] Address 192.168.1.48 port 554 
[tcp @ 000001882b592240] Interleaved list of addresses: 
[tcp @ 000001882b592240] Address 192.168.1.48 port 554 [tcp @ 000001882b592240] Starting connection attempt to 192.168.1.48 port 554 
[tcp @ 000001882b592240] Successfully connected to 192.168.1.48 port 554 
[rtsp @ 000001882b58f080] method DESCRIBE failed: 401 Unauthorized 
[rtsp @ 000001882b58f080] Cseq: 3 Server: Rtsp Server 960*576*30*4096

WWW-Authenticate: Digest realm="Surveillance Server", nonce="44976150"

rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0: Server returned 401 Unauthorized (authorization failed)



With this command
ffplay "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0"
, I get this output :

PS C:\Users\cjhou> ffplay "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0"
ffplay version 4.4-full_build-www.gyan.dev Copyright (c) 2003-2021 the FFmpeg developers
 built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 56. 70.100 / 56. 70.100
 libavcodec 58.134.100 / 58.134.100
 libavformat 58. 76.100 / 58. 76.100
 libavdevice 58. 13.100 / 58. 13.100
 libavfilter 7.110.100 / 7.110.100
 libswscale 5. 9.100 / 5. 9.100
 libswresample 3. 9.100 / 3. 9.100
 libpostproc 55. 9.100 / 55. 9.100
[rtsp @ 000001d413d2f640] method DESCRIBE failed: 401 Unauthorized
rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0: Server returned 401 Unauthorized (authorization failed)
 nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0



By the way, I am using this device :


- 

- Device Name : Digital Video Record
- Model Number : 16-CHANNEL
- Software Version : XVR_HI3521A_16_v6.1.52.1
- Date : Dec 19 2016 14:36:39










Hope this helps !


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Announcing our latest open source project : DeviceDetector
This blog post is an announcement for our latest open source project release : DeviceDetector ! The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.
Read on to learn more about this exciting release.
Why did we create DeviceDetector ?
Our previous library UserAgentParser only had the possibility to detect operating systems and browsers. But as more and more traffic is coming from mobile devices like smartphones and tablets it is getting more and more important to know which devices are used by the websites visitors.
To ensure that the device detection within Piwik will gain the required attention, so it will be as accurate as possible, we decided to move that part of Piwik into a separate project, that we will maintain separately. As an own project we hope the DeviceDetector will gain a better visibility as well as a better support by and for the community !
DeviceDetector is hosted on GitHub at piwik/device-detector. It is also available as composer package through Packagist.
How DeviceDetector works
Every client requesting data from a webserver identifies itself by sending a so-called User-Agent within the request to the server. Those User Agents might contain several information such as :
- client name and version (clients can be browsers or other software like feed readers, media players, apps,…)
- operating system name and version
- device identifier, which can be used to detect the brand and model.
For Example :
Mozilla/5.0 (Linux; Android 4.4.2; Nexus 5 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.99 Mobile Safari/537.36
This User Agent contains following information :
Operating system is
Android 4.4.2
, client uses the browserChrome Mobile 32.0.1700.99
and the device is a GoogleNexus 5
smartphone.What DeviceDetector currently detects
DeviceDetector is able to detect bots, like search engines, feed fetchers, site monitors and so on, five different client types, including around 100 browsers, 15 feed readers, some media players, personal information managers (like mail clients) and mobile apps using the AFNetworking framework, around 80 operating systems and nine different device types (smartphones, tablets, feature phones, consoles, tvs, car browsers, cameras, smart displays and desktop devices) from over 180 brands.
Note : Piwik itself currently does not use the full feature set of DeviceDetector. Client detection is currently not implemented in Piwik (only detected browsers are reported, other clients are marked as Unknown). Client detection will be implemented into Piwik in the future, follow #5413 to stay updated.
Performance of DeviceDetector
Our detections are currently handled by an enormous number of regexes, that are defined in several .YML Files. As parsing these .YML files is a bit slow, DeviceDetector is able to cache the parsed .YML Files. By default DeviceDetector uses a static cache, which means that everything is cached in static variables. As that only improves speed for many detections within one process, there are also adapters to cache in files or memcache for speeding up detections across requests.
How can users help contribute to DeviceDetector ?
Submit your devices that are not detected yet
If you own a device, that is currently not correctly detected by the DeviceDetector, please create a issue on GitHub
In order to check if your device is detected correctly by the DeviceDetector go to your Piwik server, click on ‘Settings’ link, then click on ‘Device Detection’ under the Diagnostic menu. If the data does not match, please copy the displayed User Agent and use that and your device data to create a ticket.Submit a list of your User Agents
In order to create new detections or improve the existing ones, it is necessary for us to have lists of User Agents. If you have a website used by mostly non desktop devices it would be useful if you send a list of the User Agents that visited your website. To do so you need access to your access logs. The following command will extract the User Agents :
zcat ~/path/to/access/logs* | awk -F'"' '{print $6}' | sort | uniq -c | sort -rn | head -n20000 > /home/piwik/top-user-agents.txt
If you want to help us with those data, please get in touch at devicedetector@piwik.org
Submit improvements on GitHub
As DeviceDetector is free/libre library, we invite you to help us improving the detections as well as the code. Please feel free to create tickets and pull requests on Github.
What’s the next big thing for DeviceDetector ?
Please check out the list of issues in device-detector issue tracker.
We hope the community will answer our call for help. Together, we can build DeviceDetector as the most powerful device detection library !
Happy Device Detection,