CODEWITHSUNDEEP
androidvideo-streamingdrmexoplayer
Siavash Abdoli
Siavash Abdoli

Reputation: 1862

offline drm. using exoplayer for offline secure content

Can I Download a video with DRM protection on SD card and play it only with my app that using Exoplayer or in someway that video saved securely. I don't want user can copy my video to another device and I want save it on SD card because of sizes and number of videos user may download

Upvotes: 2

Views: 5670

Answers (3)

theJango
theJango

Reputation: 1108

With the latest release of ExoPlayer 2.2.0 , it provides this facility inbuilt in ExoPlayer. ExoPlayer has a helper class to download and refresh offline license keys

OfflineLicenseHelper.java
/**
 * Helper class to download, renew and release offline licenses. It utilizes {@link
 * DefaultDrmSessionManager}.
 */
public final class OfflineLicenseHelper<T extends ExoMediaCrypto> {

You can access the latest code from the ExoPlayer repo

For more inspiration you can look at this closed issue.

I created a sample application for Offline playback of DRM content.You can access it from here

Upvotes: 4

Hakem Zaied
Hakem Zaied

Reputation: 14239

You can use Exoplayer for offline viewing. But you will have to extend your own class from DrmSessionManager. The Key here is to use MediaDrm.KEY_TYPE_OFFLINE as a keyType in mediaDrm.getKeyRequest.

In the mediaDrm.provideKeyResponse you need to get the KeySetId and used later when another request for the same video is made mediaDrm.restoreKeys

Also don't forget to set the state of the player with STATE_OPENED_WITH_KEYS after restoring the keys.

You can find more informations about this here: http://developer.android.com/reference/android/media/MediaDrm.html#KEY_TYPE_OFFLINE https://developer.android.com/reference/android/media/MediaDrm.html#restoreKeys(byte[],byte[])

Upvotes: 3

Siavash Abdoli
Siavash Abdoli

Reputation: 1862

For now I decide to use Facebook conceal library. fast and easy way for encryption. I download my content and pass it to conceal library and when I want to play the video use byte stream for and read video sectional.

but if you find better and easier way let me know.

you can find an example here

Upvotes: 1

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