Playback error on using ClearKey DRM Schema in Exoplayer 2 android

Question

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(keyString.getBytes());

mediaDrm = FrameworkMediaDrm.newInstance(uuid);

DefaultDrmSessionManager<FrameworkMediaCrypto> drmSessionManager = new DefaultDrmSessionManager<>(uuid, mediaDrm, drmCallback, null, multiSession);

After that, when i am trying to use this DefaultDrmSessionManager for playing the video, i am getting ExoPlayerImplInternal: Playback error, i am attaching the Log for reference.

E/ExoPlayerImplInternal: **Playback error**.
com.google.android.exoplayer2.ExoPlaybackException
    at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.feedInputBuffer(MediaCodecRenderer.java:780)
    at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.render(MediaCodecRenderer.java:583)
    at com.google.android.exoplayer2.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:518)
    at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:301)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:164)
    at android.os.HandlerThread.run(HandlerThread.java:65)
 Caused by: android.media.MediaCodec$CryptoException: **Crypto key not available**
    at android.media.MediaCodec.native_queueSecureInputBuffer(Native Method)
    at android.media.MediaCodec.queueSecureInputBuffer(MediaCodec.java:2547)
    at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.feedInputBuffer(MediaCodecRenderer.java:771)

Please guide me, what i am doing wrong

Answer 1

It is working fine after removing \n from the keyString.. :)