- #Integration progressive downloader with safari movie#
- #Integration progressive downloader with safari install#
- #Integration progressive downloader with safari android#
- #Integration progressive downloader with safari Offline#
The ZDF PWA offers a custom in-app installation flow and prompts users to install the app as soon as they want to download their first video. By now a comprehensive article exists that sums up all the details. Therefore, the team wrote a small utility to test the behavior on various devices. Unfortunately Safari isn't on the list of browsers implementing this API and at the time of writing there wasn't much up-to-date information about how other browsers applied quotas. With the help of the StorageManager API the app can estimate the available space and inform the user when there is insufficient space before even starting the download.
#Integration progressive downloader with safari Offline#
Since offline videos tend to be quite large, a big question is how many of them can actually be stored on a device. This transparently adds offline capabilities without having to change a single line of the player's code. The service worker can intercept the various requests done by the player and respond with the data from IndexedDB. This is where one of the web's most powerful features comes to the rescue: service workers. The player takes a content ID as input, talks to the ZDF API, and plays back the associated video. One of the project requirements was to use the official ZDF web player which doesn't provide any offline support.
Unfortunately things turned out to be a little more complex. Then during playback, listen for online/offline events, and switch to the downloaded version when the device goes offline. The basic idea is quite simple: fetch the video and store it as a blob in IndexedDB. This lets the application focus on making the dynamic content available offline, in this case the videos and their metadata. The ZDF PWA is built with TypeScript and React, so it uses the Workbox library already built into create-react-app to precache static assets. For ZDF most of the heavy lifting is done by Workbox, a set of libraries and Node modules that make it easy to support different caching strategies. Adding a service worker #Ī key feature of a PWA is offline support. The PWA offers installability, offline video playback, transition animations, and a dark mode.
#Integration progressive downloader with safari android#
Development agency Cellular took on the challenge to build a web-based experience that is on par with ZDF's platform-specific iOS and Android apps. When broadcaster ZDF was considering redesigning their frontend technology stack, they decided to take a closer look at Progressive Web Apps for their streaming site ZDFmediathek. Using frame loading rate for adaptive features.Building an offline page to access downloads.Because I am bored so much to solve this problem. But I couldn't implement a way to feed playback buffer when playbackBufferEmpty is false. Is there any other way to feed avplayer playback buffer? I can get status of playbackLikelyToKeepUp, playbackBufferEmpty, playbackBufferFull via observeValue properly. isByteRangeAccessSupported true/false and also automaticallyWaitsToMinimizeStalling true/false and both situation calls only two times shouldWaitForLoadingOfRequestedResource callback. I tried many combination to implement progressive video player. shouldWaitForLoadingOfRequestedResource callback is not called for third time to get next 10 mb of video data. Player than start to play almost first 2 second and then stalled immediatelly. It stalled immediately then.Ģ) After that I try to respond with some portion of video in second time callback.
#Integration progressive downloader with safari movie#
I also try this and return 50mb movie data but player was played only half of video. I have some questions about it:ġ) In second time callback, Should I return whole Movie data via datarequest.respond() ? If I have to return whole data, it will take too time to play video for longer videos. So, Second times is called and it has 50MB datalength. First one is 2 byte requestLen and I set "contentInformationRequest" properly for UTI mov and whole MOV file datalength as 50mb. I implemented "shouldWaitForLoadingOfRequestedResource" delegate function and this function is called only two times. I have a MOV video file on internet which size is 50mb. I tried many things and investiate many sites and forums(stackoverflos, developer forums).
Almost for a week, I try to implement progressive download playback.