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• Getting a screenshot from a protected m3u8 live stream using FFmpeg

  19 octobre 2022, par Matej Petrovski

  I am trying to get a screenshot from a local pay-toll in order to use image recognition to find out how congested it is. I am trying to use ffmpeg to extract a screenshot every time a command is run from AWS Lambda. My issue is that I cannot extract any sort of image from the m3u8 file.

  


  http://roads.mk/315/video-kameri

  


  When I open one of the cameras, the live stream appears as normal, but when I right-click to copy the address, i get a blob link

  


  blob :http://roads.mk/cb301be0-3e70-4d09-af2b-3f3d44ee8f4f

  


  Luckily, on the mobile version of the site, it immediately downloads the m3u8 file once the link is clicked. Once put into ffmpeg with command

  


  ffmpeg -i "gradsko_1.m3u8" -vf fps=1/3600 grad%04d.jpg

  


  I get the response

  


  
[hls @ 000000ce3d26d700] Skip ('#EXT-X-VERSION:3')
[hls @ 000000ce3d26d700] Opening 'gradsko_1-586008.ts' for reading
[hls @ 000000ce3d26d700] Failed to open segment 586008 of playlist 0
[hls @ 000000ce3d26d700] Opening 'gradsko_1-586009.ts' for reading
[hls @ 000000ce3d26d700] Failed to open segment 586009 of playlist 0
[hls @ 000000ce3d26d700] Opening 'gradsko_1-586010.ts' for reading
[hls @ 000000ce3d26d700] Failed to open segment 586010 of playlist 0
[hls @ 000000ce3d26d700] Skip ('#EXT-X-VERSION:3')
    Last message repeated 3 times
[hls @ 000000ce3d26d700] Error when loading first segment 'gradsko_1-585991.ts'
gradsko_1.m3u8: Immediate exit requested
Exiting normally, received signal 2.```

From what I could tell, the stream seems to be protected. 
Any way to get inside this? I would only need a single screenshot with no audio since the program would run once an hour/on command for a very general estimate. I'm just starting out with ffmpeg so any tips would be greatly appreciated.


  


• Problems with ffmpeg cross-compilation for windows x64 using linux/mingw

  3 mai 2023, par Adam

  I'm cross-compiling ffmpeg with NVIDIA hw acceleration for windows 64 with ubuntu/mingw.
The configuration/make process is OK but dumpbin shows that avfilter-9.dll file tries to import some kernel functions twice - from kernel32 which is correct and second time from... npp dlls !

  


  dumpbin /imports avfilter-9.dll
:
    nppig64_12.dll
             180587CC8 Import Address Table
             180587148 Import Name Table
                     0 time date stamp
                     0 Index of first forwarder reference

                         154 nppiRotate_8u_C1R
                         100 nppiResizeSqrPixel_8u_C1R
                           1 AcquireSRWLockExclusive
                         11B DeleteCriticalSection
                         13F EnterCriticalSection
                         228 GetCurrentProcess
                         229 GetCurrentProcessId
                         22D GetCurrentThreadId
                         276 GetLastError
:
   KERNEL32.dll
             180587CD8 Import Address Table
             180587158 Import Name Table
                     0 time date stamp
                     0 Index of first forwarder reference

                           1 AcquireSRWLockExclusive
                         11B DeleteCriticalSection
                         13F EnterCriticalSection
                         228 GetCurrentProcess
                         229 GetCurrentProcessId
                         22D GetCurrentThreadId
                         276 GetLastError
                         301 GetSystemTimeAsFileTime
                         31F GetTickCount
                         375 InitOnceBeginInitialize


  


  My ./configure :

  


  sudo PKG_CONFIG_PATH=/usr/local/lib/pkgconfig/ ./configure --arch=x86_64 --target-os=mingw64 --cross-prefix=x86_64-w64-mingw32- --enable-nonfree --enable-cuda-nvcc --enable-nvenc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --extra-cflags=-I../npp_dev/include/ --extra-ldflags=-L../npp_dev/lib/x64/ --disable-static --enable-shared


  


  /npp_dev contains include/lib files for npp (windows 64).

  


  Anybody encountered similar issue or has any idea what I should start looking at ?

  


  Important note - without —enable-libnpp the avfilter-9.dll is correctly generated.

  


  Thanks ! //Adam

  


• France rules Google Analytics non-compliant with GDPR

  11 février 2022, par Erin — Privacy

  Breaking news : The French Data Protection Agency, CNIL (Commission nationale de l’informatique et des libertés), has concluded that the use of Google Analytics is illegal under GDPR. The CNIL has begun issuing formal notices to website managers using Google Analytics.

  This follows the January 2022 Austrian Data Protection Authority’s decision to declare Google Analytics illegal to use under GDPR.

  Google Analytics GDPR breaches continue to spread through the EU

  Since the invalidation of the Privacy Shield framework, an agreement between the EU and US that allowed the transfer of data to certified US companies, the CNIL and other EU data protection authorities have received numerous complaints regarding data transfers collected during visits to websites using Google Analytics.

  "It’s interesting to see that the different European Data Protection Authorities all come to the same conclusion : the use of Google Analytics is illegal. There is a European task force and we assume that this action is coordinated and other authorities will decide similarly."

  About the CNIL’s decision

  In this model case, the CNIL has found that an unnamed website’s use of Google Analytics is non-compliant with GDPR because it had breached Article 44 which prohibits the transfer of personal data beyond the EU, unless the recipient country can prove adequate data protection. 

  Under the GDPR, personal data covers a range of identifiers including email address, race, gender, phone number to name a few, but the less obvious identifiers include IP addresses or cookie IDs, for instance. 

  The CNIL’s decision was based on the fact that the US does not meet GDPR sufficient levels of data protection as a result of US surveillance laws. Therefore, the unnamed website’s use of Google Analytics created risks for their website visitors when their personal data was exported to the US. 

  At the time of writing, it is unknown if the CNIL has issued a fine for the GDPR breach. However, the website manager of the unnamed website has been ordered by the CNIL to comply with the GDPR and, if necessary, stop using Google Analytics under the current conditions.

  "One thing we’re certain of is that these decisions will continue to roll out throughout the EU and potentially beyond.

  Other countries are imposing their own privacy regulations that closely mirror the GDPR like Brazil’s General Data Protection Law (LGPD), India’s Data Protection Bill, New Zealand’s Privacy Act and Canada’s Personal Information Protection and Electronic Documents Act (PIPEDA) to name a few.”

  The CNIL offers an evaluation programme to help website managers determine whether web analytics solutions are exempt from collecting data prior to users’ agreement to opt-in through consent screens. Matomo, for instance, is a leading Google Analytics alternative that has been recommended by CNIL and is exempt from tracking consent. 

  

  English translation : “This is why I anticipated this announcement, gradually moving the analytics of my sites to @matomo_org since several weeks !

  “The @CNIL believes that the use of @googleanalytics is a violation of #GDPR”

  Immediate action required for Google Analytics users

  The CNIL and other EU-based data protection authorities have made their stance on Google Analytics clear and inaction will likely result in fines, which under the GDPR, can be up to €20 million or 4% of the organisation’s global turnover – whichever is higher.

  Based on the CNIL’s formal notice to the model case’s website manager, Google Analytics users should take immediate action to remove any chances of personal data being transferred to the US or find a Google Analytics alternative that is GDPR compliant. 

  

  English translation : “The CNIL considers that the use of Google Analytics is a violation of the GDPR. I use @matomo_org and I welcome it *winking face* It will squeal tires among growthackers who are slaughtering. Opportunity to look at alternative tools”

  Ready to begin your journey to GDPR compliance with Matomo ? Start your 21-day free trial now (no credit card required) and take advantage of our Google Analytics importer so you don’t lose any of your historical data. 

  Try 21-day free Cloud trial

  What does this mean for Matomo users ?

  As the GDPR continues to evolve, our users can rest assured that Matomo will be at the forefront of these changes. With Matomo Cloud, all data is stored in the EU or in your country of choice when you self-host on your own servers with Matomo On-Premise.

  Conclusion

  Google is in the EU’s crosshairs and organisations that continue to use their tools will be the one’s left to clean up the mess – not Google. Now is the time to act. Search for a Google Analytics alternative and close your compliance gaps today. 

  Join over 1 million other websites using Matomo now. Give Matomo a try with a 21-day free trial – no credit card required. 

  Try 21-day free Cloud trial

  We’d like to also bring attention to the privacy-fighting efforts from noyb and Max Schrems, as this should not go unnoticed. noyb is an independent, non-profit organisation that relies on the support of individuals. Support privacy by supporting noyb – donate or become a member now. 

  Contact details for media :

  For quotes or interviews, please email marketing@matomo.org