Drm video test


This encryption has to be supported by a key exchange protocol on the device the video content is being played. mp4 \. player. Click on Add-ons and themes option and select Plugins. The Media Presentation Description (MPD) is an XML document that lists the resources (manifest or “playlist”) forming a streaming service. 1, HDCP 2. Jun 7, 2019 · STEP 2: CHOOSE YOUR DRM PROVIDER. Configure Player with optimal ABR settings, UI design, DRM, Ads, Captions and more to deliver a flawless viewer experience. microsoft. May 16, 2024 · Benefits. It acts like a digital padlock, ensuring only authorized users with the right key can watch your videos. Article. InstallCodecPack. WIth Widevine DRM you get the Shaka video player, for any platform which supports htm5. May 18, 2022 · HW-DRM - Verify Codec Support Test. Jun 29, 2022 · ThunderSoft DRM Protection, a DRM solution to protect video files from illegal copying and distribution. Check the Download: If the video starts downloading, your video security measures may need to be strengthened. There are multiple DRM technologies: Widevine – Google – supported in Chrome, Firefox, and Android. Open IDM software, click on Add URL and paste the URL in address bar and click on Ok. Demo Source Code. yesterday is now giving the same Permission insuffisante as dirkf mentioned, whether I'm using a FR proxy or not. net/drm-prote Jan 10, 2023 · The below guide is for Safari and other applications using hardware-based DRM. Or test your own stream if you will. This makes it easy for testers to incorporate DRM-protected video testing into their existing testing processes and workflows without disruptions, saving time and effort. This demo showcases how you can enable 4K streaming on the video player. configure({. The VisualOn HTML5+ Player makes it easier to target the necessary DRM for a multi-DRM content object. Unauthorized access can compromise the revenue-boosting strategies of subscription and pay-per-view services. Oct 20, 2022 · The PlayReadyHardwareDRMFeatures enumeration contains the valid list of hardware DRM feature values that can be queried. Look for the Security Level. Measure, debug and optimize video playback using Analytics. Test your streams on physical devices, using Stream Lab. 2, and higher. HTTP streams may cause the Stream Tester to fail. thundershare. VdoCipher trial account – Create a trial account with VdoCipher at vdocipher. Jun 12, 2023 · I'm guessing they're still working on the rollout of their new player, the very same URL that gave a This video is DRM protected. 0. clearkey": {. Each browser has inherent limitations in the fragmented DRM ecosystem. Get the link to the site here. 05/18/2022. Running test Stay here until it's done, it shouldn't take too long. OTT Video Monetization: The Ultimate Guide for Businesses and Developers. Test Procedure. Copy to clipboard. For view the video proceed on reference and click to button “Start test”. Works with both HLS and DASH streams. JW Player is the #1 end-to-end video streaming solution to scale your video strategy, maximize engagement, & monetize your video content. mkv video_decrypted. VdoCipher has consistently improved and updated their product & integrations over time. This license key taps into either some hardware or software-based To have working DRM across browsers you will have to sign separate contracts with Adobe, Microsoft, Google and Apple (which may be difficult if you're not Netflix). Get your FREE trial today. In this video, we will use Demo player for quick testing of our encrypted content. May 23, 2023 · The DRM-protected video testing capabilities are seamlessly integrated into the HeadSpin’s user interface, APIs, and test automation frameworks. For simple SaaS implementations for browser-based playback of Widevine-, PlayReady-, and FairPlay-encrypted content, you’ll have many candidates that can meet your needs. Test result for your audio and video devices. This protects your valuable content from unauthorized copying, distribution, and piracy. I was able to play DRM protected videos. Axinom Test Player supports DASH/HLS and Widevine, PlayReady, FairPlay. Get Multi-DRM & Forensic Watermarking Services with ease. In other words, you can test it directly from your browser without the need to install third-party software. PlayReady DRM instantiation example. Jul 24, 2023 · Download: DRM Info for Android (Free) Head to the Play Store and download DRM Info. Note: Your stream source must be https. For a detailed explanation on DRM playback in dash. Jan 4, 2024 · Here’s a basic overview of the Multi-DRM workflow: Content Encryption: The original digital content, such as video or audio files, is encrypted using multiple DRM systems. const protData = {. 0, as well as SCTE-35. Open the Netflix app on your TV. DRM Stream Test. Jun 14, 2022 · In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version. Oct 29, 2021 · DRM FairPlay da Apple é compatível com Mac Safari, iOS Safari e Apple TV. Let’s face it, digital rights management (DRM) can get downright complicated. I first started getting this issue on udemy site. This isn't built into every browser, but PlayReady 2. Mar 15, 2023 · When tests using these Player SDKs are run on Sauce Labs, there could be some issues including a black or blurred screen when launching the app or opening a screen with DRM protected content. DRM: Widevine PlayReady FairPlay Aug 24, 2018 · When you enter the app, one of the easiest ways to get started is to test your video stream in the Bitmovin Mobile Player, seeing if our mobile SDKs will support your stream. Click on it. And you can alter the codec and more audio parameters for the audio files. There the course videos which are encrypted by DRM Widevine were not playing. Our specialty is curing your digital rights pain points. The focus of Widevine is to provide the best experience for viewing premium content over digital Sep 28, 2021 · Protecting video with DRM requires three parts: Player – the player requests the license from the license server (usually using some “token” to authenticate), and then uses the license to decrypt the video and play it. e chrome, brave, firefox, edge. Run tests on OTT media devices. The tool below allows you to test your stream powered by Verimatrix Multi-DRM Core. Upload DASH content to the storage associated with the CDN or to a typical web server. PallyCon Multi-DRM trial sign up. Hit “Own Stream” and copy and paste your file URL in the Stream Section at the top. Typically for the automotive endurance market, DRM builds test equipment to measure performance, test to failure or prove existence. Qualità di registrazione. 6. THEO is the worldwide frontrunner in supporting streaming protocols such as: HLS, MPEG-DASH and HESP, bringing all of the features and capabilities a premium streaming service needs with the highest performance. 5, 2. 2, and HDCP no digital output Select the game you want to add DRM to on your App Admin page. On this page, you can try this out for yourself! Overview. Click here to learn more about Multi-DRM. Apr 13, 2023 · Here’s how it’s done: Select the video or audio file for which you want to look for the DRM encryption. js checkout the Wiki. After you hit “Play” you’ll see your video instantly play in the Bitmovin Player. UPDATE: Capcom has now confirmed that we should expect a PC performance patch soon. This is good news since your Player SDK is protecting the content properly! But you still need to test that the video stream works. 166. If IDM fails to download the video, it indicates that your Jul 22, 2022 · Step 3. Test your stream. These Multi-DRM test vectors are produced with Axinom Encoding and, compared to v9 vectors, H265 and MPEG-2 TS streams were added. To determine if the hardware supports the High Efficiency Video Coding (HEVC)/H. Test and debug different kinds of video streams using both HLS and DASH protocol or with a plain MP4 video. Start up time: 0ms. mp4,stream=audio,output=audio. 265 codec, use the HEVC member in the query. HEVC SW-DRM Video 6. HW-DRM Video - Play protected content using hardware decryptor. The keys here will be license and support pricing and ease of integration. Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. To test DRM content playback in Step 3, you must upload the folder to the test web server. License Generation: For each DRM system used, a corresponding license is generated. HEVC SW-DRM Video 7. It is used by major partners around the world such as Google Play, YouTube, Netflix, Disney+, Amazon Prime Video, HBO Max, Hulu, Peacock, Discovery+, Paramount+ and many more. Interesting fact: it takes 1. After then, hit on the 'OK' button. Network Demo DRM. May 18, 2022 · Camera Driver Test - UVC Test 3. Connect Now. Schedule up to 3 Ads & apply DRM. Consider abandoning idea of DRM, as it's more likely to backfire than protect the content. DRM adds a layer of securit Combining our automation, design, data collection and process skillsets, DRM develops automated and robust test equipment. 0, 3. With numerous technologies in use, protecting your valuable video assets across over the top (OTT) platforms isn’t always straightforward. 0 and higher clients: 2. This example shows how to use dash. That’s where we come in. 0-beta2. You can generate these keys and IDs yourself or use the tools provided by your license server to generate May 16, 2024 · Video DRM, or Digital Rights Management, is a set of technologies and protocols that encrypt video content and control access to it. It is a critical aspect of digital content delivery, ensuring that media is only accessible to viewers entitled to view it. Livello di difficoltà. How does offline DRM work on Bitmovin? Why can't I play DRM protected streams in Chrome? Why is my DRM stream only working on real, physical devices? Does one DRM standard work across all devices? Does DRM work on iOS in Chrome/Firefox browsers? Why does the playback of 360°/VR content with Axinom has prepared and hosts a list of public DRM test vectors, including multiDRM-singlekey and multiaudio among others. DRM Widevine do Google. TIME is a Leading Test prep institute with 100,000+ enrolled students. Note: The tester currently only supports MP4 and HLS sources. Despite such an easy way, you can start testing your webcam “in one click” on different devices, including laptops, smartphones, TVs Widevine’s DRM solution provides the capability to license, securely distribute and protect playback of content on any consumer device. This section provides links to various types of langEn content supported by PallyCon Multi DRM. Remove the check mark next to Play DRM-controlled content . HTTPS is required for all DRM-protected content. Widevine Content Decryption Modules (CDMs) are how streaming services protect content using HTML5 video to web browsers without relying on an NPAPI plugin like Flash or Silverlight. Reload to refresh your session. Try any stream type on Bitmovin's HTML5 Video Player DASH, HLS, Smooth, or Progressive. PlayReady DRM supports popular streaming formats like MPEG-DASH, HLS, and (MSS). Lock it down. Oct 21, 2016 · There are 9 sections in the app to test various videos and DRM schemes: YouTube Dash; Widevine Dash Policy Tests (GTS) – Widewine with or without HDCP, with or without secure video path; Widevine HDCP Capabilities Tests – NoHDCP, HDCP 1. Test Contents. Shaka player is an open-source js video player. ”. We highly suggest updating any configurations to use this new method. Whether you are a PlayReady licensee or a non-licensee, an OEM, SOC vendor, a client developer, an application developer, an encoder vendor, a service May 22, 2020 · 这里整理几个在学习Linux DRM/KMS中用到的工具,modetest、kmscude、igt-gpu-tools。 简介: modetest 是由libdrm提供的测试程序,可以查询显示设备的支持状况,进行基本的显示测试,以及设置显示的模式。 kmscube 是由mesa3d提供和维护,这是一 Improving Video SEO With Bitmovin player; FAQs. in=h264_baseline_360p_600. Test DRM-protected content. js to play streams with PlayReady DRM protection. To integrate any other video player, follow instructions under Video Players. A new Player Web SDK reimagined for high performance and flexibility. AES-128 Encryption is a widely used algorithm to protect sensitive data. Coordinating HMI, PLC and Motion Controls for test batteries with data collection and Jan 31, 2017 · The DRM false memory effect has been found using various delay intervals, including those as short as an immediate test, and those delaying memory testing until 60 days later21,22,23(but see 24). These traces are deleted if the test passes. 264, and more. So, if you'd rather not use Google's web browser, you can turn to Opera. Perform audio testing across use cases like voice activation and speaker-based applications. In the Add-ons Manager Plugins panel, click on the ellipsis or 3-dot icon next to “Widevine Content Decryption Module provided by Google Inc. MJPEG Decoder - H264 Encoder - HMFT Transcode test 10 VdoCipher's secure and smooth video playback has helped us to grow from 200 students to 400,000+ students and 450+ Teachers. This is an updated answer, comments don't make sense any more. h. 11, 3. Video stream tester. EaseUS RecExperts. It is developed and maintained by the Microsoft PlayReady Team. canPlayType and MediaSource. Note: some of the test content listed below was created long ago and includes a default LA_URL in their PlayReady Header which no longer exist. Pricing. Hit the Alt + Enter keys together to open the file Properties dialog box. Encryption: The content provider encrypts the audio or video content using Widevine's encryption technology, which generates a unique key for each device and session. May 18, 2022 · DRM tests capture MF traces by default when running in the HLK. The content proposed on this page is compatible with PlayReady version 2. Nov 10, 2022 · Pour la lecture sécurisée de vidéos, la licence DRM fait référence au système d’authentification permettant de lire une vidéo cryptée sur un appareil. 4 contributors. 2. Both CENC and FairPlay use an AES 128-bit key to encrypt content. Dans une configuration typique de DRM vidéo pour le streaming vidéo en ligne, 1 licence est généralement égale à 1 visionnage. You signed out in another tab or window. All streams are available with PlayReady, Widevine and FairPlay DRM (where compatible), and have three variants: single-key, multi-key and clear. For DRM video encryption to occur, there needs to be a robust key management system that doesn’t expose private keys to hackers. Our player also identifies the browser type and selects the suitable DRM automatically. Overview. Get White Paper Now! PallyCon provides cloud-based Multi-DRM video protection solutions with license service, content packaging & SDK for your content security. When a user attempts to play a video, the online video player requests a key from the licensed server. We recommend that you use this test The package gives me peace of mind. 0, HDCP 2. Dec 25, 2023 · Shaka players also support Apple FairPlay DRM, Implementing the FairPlay the follow same above three-step paradigm as implementing the Widevine. To create DRM video protected content suitable for Android, use Shaka packager for Widevine encryption (or FFMPEG for AES-128 encryption with Key ID and Initialization Vector): packager \. Start with a free trial. Here, scroll through the entries to find the Protected details item. DisableDeveloperModeAfterTest. Using this method will allow your browser to choose the correct DRM method when multiple DRM types are configured. Quick Start requires a trial account on the PallyCon service site. playready": {. 0, 2. 0+ Test Content. If both streams are provided the player will select the appropriate stream. ‍ 3. The JWP Stream Tester supports testing & debugging secure HTTPS streams with JW Player only. DRM Widevine do Google é o protocolo de segurança de vídeo desenvolvido e mantido pelo Google para prevenir a pirataria de vídeo nos principais navegadores (Chrome, Firefox e Edge), Android, Android TV e Chromecast. The fast feedback loop between testing, deploying and optimizing allows developers This site provides a free tool to test your webcam online and check if it is working properly. DisableDeveloperModeAfterTest: TAEF enables developer mode on tests which us RunAs:UAP. 4. Test your protected DRM stream with the Bitmovin Player. From the Security Tab, select DRM. For more details about DRM framework supported encoding schemes, please refer drm_color_mgmt. This encryption ensures the content cannot be viewed or played without the proper decryption key. Camera Driver Test - Video Capture (Record) - Record 30 seconds of 720p Video from Capture pin to H264 file (Video Only) Camera Driver Test - Video Preview (Sample Callback) - Stream video from all available format on the preview stream and dynamic format switching. Choose from Widevine, Playready, Fairplay or Clearkey and see the test stream. #MultiDRM #DRM #demoplayer Apr 29, 2022 · You can use a DRM test proxy server to protect and decrypt content with DRM. "org. This parameter instructs the test to turn developer mode off after test execution. Ainsi, seuls les utilisateurs auxquels l’accès a été accordé peuvent voir le contenu protégé. Run mp4decrypt on the resulting concatenated mp4 files once all segments are downloaded, then run mkvmerge on the decrypted video and audio, eg "mkvmerge -o myvideo. DRM: {. Mar 13, 2024 · Here's a brief overview of how Google's Widevine works: 1. HEVC SW-DRM Video 8. Content owners, multiple service operators and digital media providers can utilize Widevine’s solutions to ensure revenue generating services keep flowing to whatever device consumers desire. Bitmovin Player Version 8. com, and upload 1 or 2 test videos to the dashboard. Custom. Before this everything was working fine. This process involves several security measures, including encryption, secure transfer protocols, and digital rights management (DRM Jun 30, 2015 · CENC DRM protection is now supported by Bitmovin for MPEG-DASH content by using MPEG Common Encryption (MPEG-CENC) and Widevine Modular. Quality, Guaranteed. Explore VdoCipher's pricing for advanced video security solutions. Sep 26, 2022 · Le contenu vidéo a besoin d’une sécurité qui empêche le public de bénéficier d’un accès gratuit illimité tout en restant disponible. With this tool, you can play a DRM-protected video using Axinom DRM License Service and the video DRM and AES-128 Encryption. Upload the primary game exe - See the automated wrapper section above for more information on the tool execution options. Studio-approved DRM, geo Select one of the provided video players. Access your free account today by signing up for a trial. Select Edit Steamworks Settings in the Technical Tools Section of the App Admin page. First step remains the same in both, it just the DRM configuration and handling the request changes while implementing the FairPlay. Warning subjects of the DRM illusion reduces, but does not erase, the effect 14 , 25 . HEVC SW-DRM Video 5. Shaka player ensures secure video playback online. Player Web X is ideal for use cases such as short form content where lightning fast page and video start up time matter most. This page shows test results using the HTMLMediaElement. So with DRM, we have a couple things we need to mention: DRM requires a supported dGPU See the GPU Buyers Guide (opens new window) for supported cards; DRM is broken for iGPU-only systems This could be fixed with Shiki (now WhateverGreen) til 10. Aside from the Widevine Level, you can find out all sorts of useful information about your device using DRM Info. Verifies if windows runtime app can play protected video content that requires Output Protection Management (OPM) Note. Click on the 'audio' icon to set the output audio formats for your music files. Supports all player features like CC, DRM, Ads, Analytics etc. For FairPlay, you’ll also generate and provide an Initialization Vector (IV). Sign-up for Free Trial Now! Jul 22, 2021 · Step 1 - Sign up for a PallyCon trial. I can confirm 😭 ; 14hr ago, I saved this log: Aug 10, 2022 · Secure Video Streaming Tactics: Video DRM, Geo-blocking, and More (Update) August 10, 2022 by Sydney Roy (Whalen) Successfully delivering live and on-demand video content starts with choosing a secure video streaming platform. On this page you can watch VOD protected by drmnow! multi-drm. Press the 'Convert' button to start to remove DRM protection from Apple Music and Audible files. HEVC SW-DRM Video 2. Axinom DRM is a robust multi-DRM service that provides a single, easy-to-use unified API, which works with Microsoft PlayReady, Apple FairPlay, and Google Widevine DRMs, and is compatible with all platforms, devices and video players. HW-DRM - Verify Codec Support Test. For FairPlay a certificate Url should be specified. Feb 7, 2024 · Questo post offre due metodi per registrare video protetti da DRM. An internet connection is required for all DRM tests. Shaka HTML5 Video player. You switched accounts on another tab or window. Start your trial. For HLS users, content protection is as much an important issue to deal with as it is for MPEG-DASH clients. Step 4. May 12, 2020 · HEVC Playback test 48. Dec 21, 2022 · I m not able to play any drm protected videos on any of my web browsers i. Each DRM system has its own encryption algorithm and keys. In this article, BlendVision, a professional provider of video streaming services, will brief the concept of DRM and its main technologies, video types that should be protected by DRM, and what the user should be cautious about in 5 minutes. 000. isTypeSupported methods for various versions of ISOBMFF MIME types. Apr 29, 2023 · Add the Multipurpose Chart 1920 x 1080: 60fps test pattern (S2: Episode 8) to your Netflix library by clicking on the Add To My List (+) button. Widevine support is an alternative solution for streaming For each DRM video, you’ll need to generate an encryption key, an asset ID, and a key ID. Click the menu button and select Settings. To verify the proper configuration and operation of the IP, a suitable hardware design will need to include at a minimum: Video DMA IP to supply an input stream to the Mixer IP (layer 0) (Framebuffer Read DMA IP) Video Mixer IP You signed in with another tab or window. HEVC SW-DRM Video 3. Get details on DRM-protected streaming, flexible plans for e-learning, enterprise, and developers. DRM – Flexibility. Select the DASH (dynamic adaptive streaming over HTTP), also called MPEG-DASH, is a technology used for media streaming over the web, commonly used for video on demand (VOD) and “replay/catch-up TV” services. Browsers such as Chrome and Firefox are forced to apply HTTPS to all URLs related to media streaming for security reasons. Widevine and PlayReady use DASH streams and FairPlay uses HLS streams. If only one stream is provided, and the Test how JW Player supports DRM solutions for HLS and MPEG-DASH adaptive streaming technologies. Enable users to watch 4K high-definition content. Apr 11, 2023 · DRM technology in respect of video ensures encrypted transmission so that only authorized devices and users can watch it. Super facile. "com. Oct 4, 2022 · How the DRM Encryption Process Works. Alta - Registra con qualità fino a 8K; Una modalità di registrazione video DRM professionale; nessuna filigrana/schermo nero; Alta. 在 Electron 中,你可以使用 Widevine CDM 库装载 Chrome 浏览器。. The open-source plugin template allows you to build a unique viewing experiences on top of our most lightweight and performant player yet. It also uses the encrypted media extensions, or EME, for DRM. 0, HDCP 1. 12. 20. 000 years to crack such encryption. In the General panel, go to the Digital Rights Management (DRM) Content section. js to play streams with Clearkey DRM protection. Free Download:https://www. MPEG-CENC is an encryption standard that is independent from DRM providers and allows the decryption of the same media file (encoded and encrypted once) using multiple DRM systems (Widevine, PlayReady, etc Feb 29, 2024 · 1. HLS (VOD) MP4. Jul 31, 2021 · Digital Rights Management or DRM in video impacts whether the video can be played back from mobile device or desktop or smart TV. TEST PLAYER. PlayReady DRM supports a wide range of audio and video codecs, ensuring compatibility with various multimedia formats like WMA, WMV, AAC, AAC+, H. Our tech review of Resident Evil Village on PC had a bunch of positive poi Aug 10, 2023 · Secure media streaming is the process of transmitting audio and video content securely. For better device compatibility Multi DRM is used to encrypt and package the video content. Serveur de licence DRM. It binds the Video Element and Widevine CDM by consuming the EME API. Aug 13, 2022 · Digital Rights Management (DRM) is a technology that is used to protect digital content, such as videos, music, and ebooks, from unauthorized access or distr Mar 20, 2024 · To disable this CDM plugin in firefox, you can follow the steps as, Click the menu button looking like stacked bars. . Though this concept has been in place for years, it is still strange to many people. w3. mp4". Note that you should test Widevine on Chrome, FairPlay on Safari, and PlayReady on Windows Edge. Feedback. Source: URI for the video content This Tool allows you to check Media Source Extensions support for widely used video codecs & audio codecs and Encrypted Media Extensions support for major Digital Rights Management (DRM) systems for your browser. Efficacia. If you haven’t signed up for the PallyCon service yet, here’s how to create an account: 1-1. For NCG samples, you can langEn them using the NCG iOS / Android SDK sample app or Gom Player. 2, but broke with The AV Platform allows you to test audio video across different use cases such as media, entertainment, gaming, and video conferencing. 测试 Widevine CDM. TAEF enables developer mode on tests which us RunAs:UAP. Nov 29, 2018 · This website and the associated resources include documentation and test tools for PlayReady developers to test their products. <script>. function init() {. For more information regarding DRM, and for examples, please view our support article. (Please contact us to get the SDK) Oct 6, 2021 · Widevine DRM is Google’s content protection system for premium media. Apr 27, 2017 · DRM support in videojs is provided by a plugin - as mentioned in the videojs FAQ: Support for DRM video via a core plugin. Source code. To determine if hardware DRM is supported, use the HardwareDRM member in the query. Open the app, then scroll to the Widevine CDM section. HEVC SW-DRM Video 4. Integration Flutter VdoCipher video SDK – Click on the ‘embed’ button below any video in the dashboard, and go to the ‘mobile app’ section. mp4 audio_decrypted. ‍ What Is DRM? ‍ Here’s a glossary of terms related to Widevine DRM. Download the exe back to your local machine. DASH samples can be found on the HTML5 Playback Tests page in the Dev Console. Metodo. Proceed to demo-page with our html5 player, supporting drmnow! multi-drm and technology of display of advertising VAST 3. Alternative Method: Capture the Video File URL using inspect element method. This test page does not support http. Bitmovin Analytics Version v2. HEVC SW-DRM Video 1. 📘. The above is very easy to put into a basic bash script, just pull the segment url's etc from the manifest. From the General tab, go to the Details tab. Go to the PallyCon console site login page and click on the ‘Sign up’ button. 0 /VPAID 2. Axinom DRM is Hollywood studio approved and supports the latest security requirements for premium UHD 4K, live Feb 7, 2016 · However, Opera for Linux --itself based on the Chromium browser--now supports Netflix on Linux as well. DRM. This limitation is because Netflix doesn't just use HTML5 video. videojs-contrib-eme Clearkey DRM instantiation example. Le DRM vidéo est le protocole qui protège les contenus vidéo de toutes sortes en les cryptant. hx fj ye dx ge jq li mz eg eb