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• How to transcode 4K HDR using libx265 or libsvtav1 with ffmpeg ?

  28 octobre 2022, par Asav Mali

  Im currently trying to transcode a mp4 file containing a HEVC 10 Bit HDR stream with proper grading information to HLS (fragmented mp4 aka fmp4) in two different codecs, HEVC and AV1. The problem is that the x265 encoder pops the following message while transcoding starts :

  


  Output #0, hls, to '/tmp/output/testclip/v-hevc-2160p-hvc1.2.4.L150.B0/master.m3u8':
  Metadata:
    encoder         : Lavf59.27.100
  Stream #0:0: Video: hevc (hvc1 / 0x31637668), yuv420p10le(tv, bt2020nc/bt2020/smpte2084, progressive), 3840x1600 [SAR 1:1 DAR 12:5], q=2-31, 7864 kb/s, 23.98 fps, 24k tbn (default)
    Metadata:
      encoder         : Lavc59.37.100 libx265
    Side data:
      cpb: bitrate max/min/avg: 8257000/0/0 buffer size: 31457000 vbv_delay: N/A
      Mastering Display Metadata, has_primaries:1 has_luminance:1 r(0.6800,0.3200) g(0.2650,0.6900) b(0.1500 0.0600) wp(0.3127, 0.3290) min_luminance=0.005000, max_luminance=4000.000000
      Content Light Level Metadata, MaxCLL=368, MaxFALL=226
x265 [warning]: unable to parse mastering display color volume infoed=   0x    
x265 [warning]: unable to parse mastering display color volume infoeed=0.758x     
x265 [warning]: unable to parse mastering display color volume infoeed=1.06x 


  


  Why is the message "unable to parse mastering display color volume info" coming up if I explicitly define the grading info using the following command ? :

  


  /usr/bin/ffmpeg -i "/tmp/testclip.m4v" -map 0:0 -c:v libx265 -b:v 7864320 -maxrate:v 8257536 -bufsize 31457280 -vf zscale=width=3840:height=1600 -x265-params colorprim=bt2020:transfer=smpte-2084:colormatrix=bt2020nc:master-display="G(13250.0,34500.0)B(7500.0,3000.0)R(34000.0,16000.0)WP(15635.0,16450.0)L(40000000.0,50.0):max-cll="368.0,226.0"" -pix_fmt yuv420p10le -profile:v main10 -bf 0 -crf 16 -preset fast -keyint_min 48 -g 48 -sc_threshold 0 -use_timeline 1 -use_template 1 -seg_duration 6 -tune fastdecode -vtag hvc1 -map_metadata -1 -map_chapters -1 -f hls -hls_time 6 -streaming 1 -hls_list_size 0  -hls_segment_filename "/tmp/output/testclip/v-hevc-2160p-hvc1.2.4.L150.B0/f-%04d.m4s"  -hls_fmp4_init_filename "init-v-hevc-2160p-hvc1.2.4.L150.B0.m4s"  -hls_segment_type fmp4 -movflags frag_every_frame+delay_moov+skip_trailer+faststart -hls_flags independent_segments "/tmp/output/testclip/v-hevc-2160p-hvc1.2.4.L150.B0/master.m3u8"


  


  No matter if I define the "master-display" or not, the image stays the same according to the colors, If I don't define "master-display" I dont get the annoying message form the x265 encoder for some reason. Can somebody give an answer how the x265 encoder works with ffmpeg and HDR ?

  


  Besides the HEVC stream, I also create a AV1 stream using libsvtav1. Here I'm using a quite similar command, but the image looks differently compared against the HEVC version, much colder, why that ? I define the grading information explicitly for the libsvtav1 encoder the same way as I do it for x265 using mastering-display...? :

  


  /usr/bin/ffmpeg -i "/tmp/testclip.m4v" -map 0:0 -c:v libsvtav1 -b:v 6291456 -maxrate:v 6606028 -bufsize 25165824 -vf zscale=width=3840:height=1600 -svtav1-params input-depth=10:fast-decode=1:color-primaries=9:transfer-characteristics=16:matrix-coefficients=9:mastering-display="G(0.265,0.69)B(0.15,0.06)R(0.68,0.32)WP(0.3127,0.329)L(4000.0,0.005):content-light="368.0,226.0"":enable-hdr=1 -pix_fmt yuv420p10le -max_muxing_queue_size 1024 -profile:v main -preset 7 -crf 20 -keyint_min 48 -g 48 -use_timeline 1 -use_template 1 -seg_duration 6 -strict experimental -map_metadata -1 -map_chapters -1 -f hls -hls_time 6 -streaming 1 -hls_list_size 0  -hls_segment_filename "/tmp/output/testclip/v-av01-2160p-av01.0.12H.10/f-%04d.m4s"  -hls_fmp4_init_filename "init-v-av01-2160p-av01.0.12H.10.m4s"  -hls_segment_type fmp4 -movflags frag_every_frame+delay_moov+skip_trailer+faststart -hls_flags independent_segments "/tmp/output/testclip/v-av01-2160p-av01.0.12H.10/master.m3u8"


  


  I would expect that grading information will get placed properly with both encoders.

  


  Thanks in advance.

  


• A Guide to GDPR Sensitive Personal Data

  13 mai 2024, par Erin

  The General Data Protection Regulation (GDPR) is one of the world’s most stringent data protection laws. It provides a legal framework for collection and processing of the personal data of EU individuals.

  The GDPR distinguishes between “special categories of personal data” (also referred to as “sensitive”) and other personal data and imposes stricter requirements on collection and processing of sensitive data. Understanding these differences will help your company comply with the requirements and avoid heavy penalties.

  In this article, we’ll explain what personal data is considered “sensitive” according to the GDPR. We’ll also examine how a web analytics solution like Matomo can help you maintain compliance.

  What is sensitive personal data ?

  The following categories of data are treated as sensitive :

  1. 1. Personal data revealing :
        • Racial or ethnic origin ;
        • Political opinions ;
        • Religious or philosophical beliefs ;
        • Trade union membership ;
     2. Genetic and biometric data ;
     3. Data concerning a person’s :
        • Health ; or
        • Sex life or sexual orientation.

  

  Sensitive vs. non-sensitive personal data : What’s the difference ?

  While both categories include information about an individual, sensitive data is seen as more private, or requiring a greater protection. 

  Sensitive data often carries a higher degree of risk and harm to the data subject, if the data is exposed. For example, a data breach exposing health records could lead to discrimination for the individuals involved. An insurance company could use the information to increase premiums or deny coverage. 

  In contrast, personal data like name or gender is considered less sensitive because it doesn’t carry the same degree of harm as sensitive data. 

  Unauthorised access to someone’s name alone is less likely to harm them or infringe on their fundamental rights and freedoms than an unauthorised access to their health records or biometric data. Note that financial information (e.g. credit card details) does not fall into the special categories of data.

  

  Legality of processing

  Under the GDPR, both sensitive and nonsensitive personal data are protected. However, the rules and conditions for processing sensitive data are more stringent.

  Article 6 deals with processing of non-sensitive data and it states that processing is lawful if one of the six lawful bases for processing applies. 

  In contrast, Art. 9 of the GDPR states that processing of sensitive data is prohibited as a rule, but provides ten exceptions. 

  It is important to note that the lawful bases in Art. 6 are not the same as exceptions in Art. 9. For example, while performance of a contract or legitimate interest of the controller are a lawful basis for processing non-sensitive personal data, they are not included as an exception in Art. 9. What follows is that controllers are not permitted to process sensitive data on the basis of contract or legitimate interest. 

  The exceptions where processing of sensitive personal data is permitted (subject to additional requirements) are : 

  • Explicit consent : The individual has given explicit consent to processing their sensitive personal data for specified purpose(s), except where an EU member state prohibits such consent. See below for more information about explicit consent. 
  • Employment, social security or social protection : Processing sensitive data is necessary to perform tasks under employment, social security or social protection law.
  • Vital interests : Processing sensitive data is necessary to protect the interests of a data subject or if the individual is physically or legally incapable of consenting. 
  • Non-for-profit bodies : Foundations, associations or nonprofits with a political, philosophical, religious or trade union aim may process the sensitive data of their members or those they are in regular contact with, in connection with their purposes (and no disclosure of the data is permitted outside the organisation, without the data subject’s consent).
  • Made public : In some cases, it may be permissible to process the sensitive data of a data subject if the individual has already made it public and accessible. 
  • Legal claims : Processing sensitive data is necessary to establish, exercise or defend legal claims, including legal or in court proceedings.
  • Public interest : Processing is necessary for reasons of substantial public interest, like preventing unlawful acts or protecting the public.
  • Health or social care : Processing special category data is necessary for : preventative or occupational medicine, providing health and social care, medical diagnosis or managing healthcare systems.
  • Public health : It is permissible to process sensitive data for public health reasons, like protecting against cross-border threats to health or ensuring the safety of medicinal products or medical devices. 
  • Archiving, research and statistics : You may process sensitive data if it’s done for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes.

  In addition, you must adhere to all data handling requirements set by the GDPR.

  Important : Note that for any data sent that you are processing, you always need to identify a lawful basis under Art. 6. In addition, if the data sent contains sensitive data, you must comply with Art. 9.

  Explicit consent

  While consent is a valid lawful basis for processing non-sensitive personal data, controllers are permitted to process sensitive data only with an “explicit consent” of the data subject.

  The GDPR does not define “explicit” consent, but it is accepted that it must meet all Art. 7 conditions for consent, at a higher threshold. To be “explicit” a consent requires a clear statement (oral or written) of the data subject. Consent inferred from the data subject’s actions does not meet the threshold. 

  The controller must retain records of the explicit consent and provide appropriate consent withdrawal method to allow the data subject to exercise their rights.

  Examples of compliant and non-compliant sensitive data processing

  Here are examples of when you can and can’t process sensitive data :

  • When you can process sensitive data : A doctor logs sensitive data about a patient, including their name, symptoms and medicine prescribed. The hospital can process this data to provide appropriate medical care to their patients. An IoT device and software manufacturer processes their customers’ health data based on explicit consent of each customer. 
  • When you can’t process sensitive data : One example is when you don’t have explicit consent from a data subject. Another is when there’s no lawful basis for processing it or you are collecting personal data you simply do not need. For example, you don’t need your customer’s ethnic origin to fulfil an online order.

  Other implications of processing sensitive data

  If you process sensitive data, especially on a large scale, GDPR imposes additional requirements, such as having Data Privacy Impact Assessments, appointing Data Protection Officers and EU Representatives, if you are a controller based outside the EU.

  Penalties for GDPR non-compliance

  Mishandling sensitive data (or processing it when you’re not allowed to) can result in huge penalties. There are two tiers of GDPR fines :

  • €10 million or 2% of a company’s annual revenue for less severe infringements
  • €20 million or 4% of a company’s annual revenue for more severe infringements

  In the first half of 2023 alone, fines imposed in the EU due to GDPR violations exceeded €1.6 billion, up from €73 million in 2019.

  Examples of high-profile violations in the last few years include :

  • Amazon : The Luxembourg National Commission fined the retail giant with a massive $887 million fine in 2021 for not processing personal data per the GDPR. 
  • Google : The National Data Protection Commission (CNIL) fined Google €50 million for not getting proper consent to display personalised ads.
  • H&M : The Hamburg Commissioner for Data Protection and Freedom of Information hit the multinational clothing company with a €35.3 million fine in 2020 for unlawfully gathering and storing employees’ data in its service centre.

  One of the criteria that affects the severity of a fine is “data category” — the type of personal data being processed. Companies need to take extra precautions with sensitive data, or they risk receiving more severe penalties.

  What’s more, GDPR violations can negatively affect your brand’s reputation and cause you to lose business opportunities from consumers concerned about your data practices. 76% of consumers indicated they wouldn’t buy from companies they don’t trust with their personal data.

  Organisations should lay out their data practices in simple terms and make this information easily accessible so customers know how their data is being handled.

  Get started with GDPR-compliant web analytics

  The GDPR offers a framework for securing and protecting personal data. But it also distinguishes between sensitive and non-sensitive data. Understanding these differences and applying the lawful basis for processing this data type will help ensure compliance.

  Looking for a GDPR-compliant web analytics solution ?

  At Matomo, we take data privacy seriously. 

  Our platform ensures 100% data ownership, putting you in complete control of your data. Unlike other web analytics solutions, your data remains solely yours and isn’t sold or auctioned off to advertisers. 

  Additionally, with Matomo, you can be confident in the accuracy of the insights you receive, as we provide reliable, unsampled data.

  Matomo also fully complies with GDPR and other data privacy laws like CCPA, LGPD and more.

  Start your 21-day free trial today ; no credit card required. 

  Disclaimer

  We are not lawyers and don’t claim to be. The information provided here is to help give an introduction to GDPR. We encourage every business and website to take data privacy seriously and discuss these issues with your lawyer if you have any concerns.

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• Protecting consumer privacy : How to ensure CCPA compliance

  18 août 2023, par Erin — CCPA, Privacy

  The California Consumer Privacy Act (CCPA) is a state law that enhances privacy rights and consumer protection for residents of California. 

  It grants consumers six rights, like the right to know what personal information is being collected about them by businesses and others. 

  CCPA also requires businesses to provide notice of data collection practices. Consumers can choose to opt out of the sale of their data. 

  In this article, we’ll learn more about the scope of CCPA, the penalties for non-compliance and how our web analytics tool, Matomo, can help you create a CCPA-compliant framework.

  What is the CCPA ? 

  CCPA was implemented on January 1, 2020. It ensures that businesses securely handle individuals’ personal information and respect their privacy in the digital ecosystem. 

  

  CCPA addresses the growing concerns over privacy and data protection ; 40% of US consumers share that they’re worried about digital privacy. With the increasing amount of personal information being collected and shared by businesses, there was a need to establish regulations to provide individuals with more control and transparency over their data. 

  CCPA aims to protect consumer privacy rights and promote greater accountability from businesses when handling personal information.

  Scope of CCPA 

  The scope of CCPA includes for-profit businesses that collect personal information from California residents, regardless of where you run the business from.

  It defines three thresholds that determine the inclusion criteria for businesses subject to CCPA regulations. 

  Businesses need to abide by CCPA if they meet any of the three options :

  1. Revenue threshold : Have an annual gross revenue of over $25 million.
  2. Consumer threshold : Businesses that purchase, sell or distribute the personal information of 100,000 or more consumers, households or devices.
  3. Data threshold : Businesses that earn at least half of their revenue annually from selling the personal information of California residents.

  What are the six consumer rights under the CCPA ? 

  Here’s a short description of the six consumer rights. 

  

  1. Right to know : Under this right, you can ask a business to disclose specific personal information they collect about you and the categories of sources of the information. You can also know the purpose of collection and to which third-party the business will disclose this info. This allows consumers to understand what information is being held and how it is used. You can request this info for free twice a year.
  2. Right to delete : Consumers can request the deletion of their personal information. Companies must comply with some exceptions.
  3. Right to opt-out : Consumers can deny the sale of their personal information. Companies must provide a link on their homepage for users to exercise this right. After you choose this, companies can’t sell your data unless you authorise them to do so later.
  4. Right to non-discrimination : Consumers cannot be discriminated against for exercising their CCPA rights. For instance, a company cannot charge different prices, provide a different quality of service or deny services.
  5. Right to correct : Consumers can request to correct inaccurate personal information.

  6. Right to limit use : Consumers can specify how they want the businesses to use their sensitive personal information. This includes social security numbers, financial account details, precise geolocation data or genetic data. Consumers can direct businesses to use this sensitive information only for specific purposes, such as providing the requested services.

  Penalties for CCPA non-compliance 

  52% of organisations have yet to adopt CCPA principles as of 2022. Non-compliance can attract penalties.

  

  Section 1798.155 of the CCPA states that any business that doesn’t comply with CCPA’s terms can face penalties based on the consumer’s private right to action. Consumers can directly take the company to the civil court and don’t need prosecutors’ interventions. 

  Businesses get a chance of 30 days to make amends for their actions. 

  If that’s also not possible, the business may receive a civil penalty of up to $2,500 per violation. Violations can be of any kind, even accidental. An intentional violation can attract a fine of $7,500. 

  Consumers can also initiate private lawsuits to claim damages that range from $100 to $750, or actual damages (whichever is higher), for each occurrence of their unredacted and unencrypted data being breached on a business’s server.

  CCPA vs. GDPR 

  Both CCPA and GDPR aim to enhance individuals’ control over their personal information and provide transparency about how their data is collected, used and shared. The comparison between the CCPA and GDPR is crucial in understanding the regulatory framework of data protection laws.

  Here’s how CCPA and GDPR differ :

  Scope

  • CCPA is for businesses that meet specific criteria and collect personal information from California residents. 
  • GDPR (General Data Protection Regulation) applies to businesses that process the personal data of citizens and residents of the European Union.

  Definition of personal information

  • CCPA includes personal information broadly, including identifiers such as IP addresses and households. Examples include name, email id, location and browsing history. However, it excludes HIPAA-protected medical data, clinical trial data and other personal information from government records.
  • GDPR covers any personal data relating to an identified or identifiable individual, excluding households. Examples include the phone number, email address and personal identification number. It excludes anonymous and deceased person’s data.

  

  Consent

  • Under the CCPA, consumers can opt out of the sale of their personal information.
  • GDPR states that organisations should obtain explicit consent from individuals for processing their personal data.

  Rights

  • CCPA grants the right to know what personal information is being collected and the right to request deletion of their personal information.
  • GDPR also gives individuals various rights, such as the right to access and rectify their personal data, the right to erasure (also known as the right to be forgotten) and also the right to data portability. 

  Enforcement

  • For CCPA, businesses may have to pay $7,500 for each violation. 
  • GDPR has stricter penalties for non-compliance, with fines of up to 4% of the global annual revenue of a company or €20 million, whichever is higher.

  A 5-step CCPA compliance framework 

  Here’s a simple framework you can follow to ensure compliance with CCPA. Alongside this, we’ll also share how Matomo can help. 

  Matomo is an open-source web analytics platform trusted by organisations like the United Nations, NASA and more. It provides valuable insights into website traffic, visitor behaviour and marketing effectiveness. More than 1 million websites and apps (approximately 1% of the internet !) use our solution, and it’s available in 50+ languages. Below, we’ll share how you can use Matomo to be CCPA compliant.

  1. Assess data

  First, familiarise yourself with the California Consumer Privacy Act and check your eligibility for CCPA compliance. 

  For example, as mentioned earlier, one threshold is : purchases, receives or sells the personal data of 100,000 or more individuals or households. 

  But how do you know if you have crossed 100K ? With Matomo ! 

  Go to last year’s calendar, select visitors, then go to locations and under the “Region” option, check for California. If you’ve crossed 100K visitors, you know you have to become CCPA compliant.

  

  Identify and assess the personal information you collect with Matomo.

  2. Evaluate privacy practices

  Review the current state of your privacy policies and practices. Conduct a thorough assessment of data sharing and third-party agreements. Then, update policies and procedures to align with CCPA requirements.

  For example, you can anonymise IP addresses with Matomo to ensure that user data collected for web analytics purposes cannot be used to trace back to specific individuals.

  

  If you have a consent management solution to honour user requests for data privacy, you can also integrate Matomo with it. 

  3. Communicate 

  Inform consumers about their CCPA rights and how you handle their data.

  Establish procedures for handling consumer requests and obtaining consent. For example, you can add an opt-out form on your website with Matomo. Or you can also use Matomo to disable cookies from your website.

  

  Documenting your compliance efforts, including consumer requests and how you responded to them, is a good idea. Finally, educate staff on CCPA compliance and their responsibilities to work collaboratively.

  4. Review vendor contracts

  Assessing vendor contracts allows you to determine if they include necessary data processing agreements. You can also identify if vendors are sharing personal information with third parties, which could pose a compliance risk. Verify if vendors have adequate security measures in place to protect the personal data they handle.

  That’s why you can review and update agreements to include provisions for data protection, privacy and CCPA requirements.

  Establish procedures to monitor and review vendor compliance with CCPA regularly. This may include conducting audits, requesting certifications and implementing controls to mitigate risks associated with vendors handling personal data.

  5. Engage legal counsel

  Consider consulting with legal counsel to ensure complete understanding and compliance with CCPA regulations.

  Finally, stay updated on any changes or developments related to CCPA and adjust your compliance efforts accordingly.

  Matomo and CCPA compliance 

  There’s an increasing emphasis on privacy regulations like CCPA. Matomo offers a robust solution that allows businesses to be CCPA-compliant without sacrificing the ability to track and analyse crucial data.

  You can gain in-depth insights into user behaviour and website performance — all while prioritising data protection and privacy. 

  Request a demo or sign up for a free 21-day trial to get started with our powerful CCPA-compliant web analytics platform — no credit card required. 

  Disclaimer

  We are not lawyers and don’t claim to be. The information provided here is to help give an introduction to CCPA. We encourage every business and website to take data privacy seriously and discuss these issues with your lawyer if you have any concerns.