drm | 易学教程

Playback error on using ClearKey DRM Schema in Exoplayer 2 android

阅读更多关于 Playback error on using ClearKey DRM Schema in Exoplayer 2 android

问题 I am trying to play the .MPD file, which is using DRMSchema : clearKey For playing it i am creating a DefaultDrmSessionManager in the following way String keyString = "{\"keys\":[{\"kty\":\"oct\",\"k\":\"y1QQhMmXMa70__dFAMEurQ\n" + " \",\"kid\":\"bXbyXLF_Xha46u9rv1gtjg\n" + " \"},{\"kty\":\"oct\",\"k\":\"pGMaFTpEPfnu0FkwQ9t1GQ\n" + " \",\"kid\":\"88XgNh5mVLKPgEnHeLI5Rg\n" + " \"}],'type':\"temporary\"}"; LogMgr.i("DRMCallback JSON : " + keyString); drmCallback = new LocalMediaDrmCallback

What's the difference between PlayReady/Widevine and ClearKey?

阅读更多关于 What's the difference between PlayReady/Widevine and ClearKey?

问题 Like the title states, what is the difference between PlayReady/Widevine and ClearKey? Is PlayReady/Widevine better than ClearKey? 回答1: ClearKey is a free alternative to commercial DRM solutions for MPEG-DASH content (MPEG-CENC compliant), but as it is only an encryption solution it does not offer the same level of protection as PlayReady, Widevine or Fairplay. [Opinion:] If you need a complete DRM solution then working with a provider who supports an integrated DRM solution for origin and

DRM for videos bundled with a desktop app?

阅读更多关于 DRM for videos bundled with a desktop app?

问题 So, I have this desktop app built using WPF and C#. It's basically an offline course system that has videos, quizzes, and other assorted content. My dilemma is that I don't know how to protect the videos once they are downloaded and installed on the users machine? Are there any DRM systems out there that I can look into? I thought about storing them in a local encrypted database but I don't even know where to start with that (or if there is something else out there that I'm totally missing...

How can I prevent users from downloading MP3s directly

阅读更多关于 How can I prevent users from downloading MP3s directly

问题 I'm building a web-radio like service, in which the user authenticates to the services, gets a cookie and a Flash-based app plays mp3s from the server. The server only delivers if the client is allowed for that particular mp3. If a user opens a HTTP logger (like FireBug), he can see the files being downloaded by flash. If he opens the mp3 URL directly via the address bar, he can easily download the MP3, although the URLs are not guessable by the user. I'm looking for a safe system to prevent

Getting XHTML from DRM EPUB

阅读更多关于 Getting XHTML from DRM EPUB

I'm currently using the Adobe RMSDK to read DRM EPUBs. It renders an EPUB page as an image, and sends it back to be displayed on the device. I would really like to have access to the EPUBs XHTML, to display it in a webview. I have been able to unzip the EPUBs and browse the different chapters, but the content is still encrypted. Is there anyone that have any idea how I can accomplish this? I'm using Xcode 4.2 , Objective C/C++ Regards, EZFrag EDIT 1: I already combed through the whole RMSDK, but was unable to find anything that could help me. I also couldn't find any online resource explaining

Playing Movies from ITunes using MPMoviePlayerController?

阅读更多关于 Playing Movies from ITunes using MPMoviePlayerController?

问题 I'm trying to play a movie acquired from iTunes. The movie was placed in my sandbox via File Sharing/iTunes Transfer. The application is using MPMoviePlayerController or MPMoviePlayerViewController . I can use either, but neither have work properly on an iTunes movie. Below is what I am observing: Test Movie Acquired from Hillegass (Chapter 20) - OK [1] Acquired from Apple's sample - OK [2] Apple Video app - OK iTunes Movie No video No audio Silent failure in my application [3] Silent failure

How can we restrict the user from saving a web page?

阅读更多关于 How can we restrict the user from saving a web page?

问题 How can we restrict a user from saving the page? Please provide some tips to disable File->Save and View Source options EDIT: Obviously it can't be done, and probably shouldn't be attempted. But possibly a more interesting variant on this question is how can we make is sufficiently hard for a user to save a page in a usable format such that it is not worth their while doing so? The question doesn't pose a value, but say we were protecting an article subscription site where the user is paying

Android Widevine HLS/DRM support

阅读更多关于 Android Widevine HLS/DRM support

问题 It will be soon 2 years since Google acquires the Widevine company that provides the DRM support for protecting e.g. the HLS H.264/AAC streams. According to the http://www.widevine.com/ not only Android, but also iPhone/iPad and game consoles like Wii or PS3 ares supported. Does anybody experience with the Android Widevine DRM? Regards, STeN 回答1: you must be certified by google to work with the Widevine APIs. the certification is called CWIP and requires paying a substantial sum and going

Widevine video streaming on iOS and AirPlay

阅读更多关于 Widevine video streaming on iOS and AirPlay

问题 Could you help us please with the following problem related to the DRM (Widevine) encrypted video stream playback and use of the AirPlay? When we tried to play the video from iPhone with use of the AirPlay on Apple TV, the "failed to load content” error was shown on the TV screen. We are not sure if that is correct behaviour. We think it is, because for encrypted video playback we cannot use the AirPlay as it transports the raw unencrypted stream, right? So far we found that the only possible

Samsung Smart TV streaming MPEG DASH with PlayRead

阅读更多关于 Samsung Smart TV streaming MPEG DASH with PlayRead

问题 I try to play stream (MPEG-DASH with PlayReady) on Orsay TV (Samsung TV before Tizen). Unencrypted DASH is working fine. I'm trying to acquire licence strictly according to DRM Today manual (that is my DRM provider), but the playback doesn't start, and after a while I get rendering error, or no stream at all. CustomData is generated due the DRM provider specification and it works on other platforms and devices. It's base64 hashed to customDataBase64 due to the DRM provider's manual. <object