Update ExoPlayerDemo.apk

Test: Playback of content in ExoPlayerDemo.apk

Bug: 203837661
Change-Id: Ic62b483b92215d2369b05bc2adc33d754ef5de5e

libwvdrmengine/test/demo/readme.txt

@@ -4,20 +4,37 @@ To install, side load ExoPlayerDemo.apk app to your device:
 
   adb install ExoPlayerDemo.apk
 
-To run, launch ExoPlayer, then choose the clip to play.  The
-   Widevine-encrypted DASH CENC assets are in the "WIDEVINE DASH GTS"
+To run, launch ExoPlayer, then choose the clip to play.
+   The Widevine-encrypted DASH CENC assets are in the "WIDEVINE DASH (policy tests)"
    section.
 
    These assets test various configurations of the Key Control Block (KCB)
    with various protections and expirations:
 
-   WV: HDCP not specified (KCB: Observe_HDCP=false)
-   WV: HDCP not required (KCB: Observe_HDCP=true && HDCP=not required && DataPath=normal)
-   WV: HDCP required (KCB: Observe_HDCP=true && HDCP=required && DataPath=normal)
-   WV: Secure video path required (KCB: Observe_HDCP=true && HDCP=not required && DataPath=secure)
-   WV: HDCP + secure video path required (KCB: Observe_HDCP=true && HDCP=required && DataPath=secure)
-   WV: 30s license duration (KCB: test timer expiration)
-   WV: Secure VP9 (Requires a secure VP9 decoder. Only shows on devices that support VP9 content.)
+   Security Level Checks:
+       SW secure crypto (SW crypto required)
+       SW secure decode (SW crypto and decode required)
+       HW secure crypto (HW crypto required)
+       HW secure decode (HW crypto and decode required)
+       HW secure all (HW secure video path required (L1))
+
+   License Timer Policy:
+   	30s license (timer stops at 30 seconds, playback should stop)
+
+   HDCP Policies
+       HDCP not required (KCB: Observe_HDCP=true && HDCP=not required && DataPath=normal)
+       HDCP 1.0 required (KCB: Observe_HDCP=true && HDCP=required && DataPath=normal)
+       HDCP 2.0 required (Requires HDCP 2.0+ to play)
+       HDCP 2.1 required (Requires HDCP 2.1+ to play)
+       HDCP 2.2 required (Requires HDCP 2.2+ to play)
+       HDCP no digital output (Output to connected devices not allowed)
+
+   There are also Widevine-encrypted DASH CENC assets for various container
+   formats as well.
+       Widevine DASH (MP4, H264): Contains cenc and cbcs encryption samples
+       Widevine DASH (WebM, VP9): Contains full-sample and sub-sample cenc
+           samples
+       Widevine DASH (MP4, H265): Contains cenc samples only
 
 Notes:
 
@@ -31,10 +48,6 @@ Notes:
   will do seamless resolution switching. If the decoder doesn't claim this then you'll still get the
   old nearly-seamless-switch (codec release/re-acquire) behavior.
 
-- If your device is running KLP or later, the player will attempt to hook into the
+- The player will attempt to hook into the
   AudioTrack.getTimestamp API to do A/V sync. It will fall back to a legacy approach if
   the API isn't available.
-
-- Exoplayer will retrieve a new license when playing "WV: 30s license duration",
-  after the license duration has expired. Integrators should verify by means
-  other than visual inspection that license duration is being enforced.