Widevine HLS live stream support for L1 secure playback.

Check in for Jeff Tinker.
BUG 5081725

Change-Id: If1d828e97319788ab52c6f15a7782a1da63d8f20

proprietary/wvm/WVMMediaSource.cpp

@@ -82,6 +82,7 @@ void WVMMediaSource::allocBufferGroup()
 
 status_t WVMMediaSource::setBuffers(const Vector<MediaBuffer *> &buffers) {
 #ifdef REQUIRE_SECURE_BUFFERS
+  if (!mIsLiveStream) {
       LOGI("Using codec-supplied buffers");
 
       delete mGroup;
@@ -90,6 +91,9 @@ status_t WVMMediaSource::setBuffers(const Vector<MediaBuffer *> &buffers) {
         mGroup->add_buffer(buffers.itemAt(i));
       }
       return OK;
+  } else {
+      return ERROR_UNSUPPORTED;
+  }
 #else
   return ERROR_UNSUPPORTED;
 #endif
@@ -160,7 +164,7 @@ sp<MetaData> WVMMediaSource::getFormat()
     Mutex::Autolock autoLock(mLock);
 
 #ifdef REQUIRE_SECURE_BUFFERS
-    if (mESSelector == WV_EsSelector_Video) {
+    if (!mIsLiveStream && (mESSelector == WV_EsSelector_Video)) {
       mTrackMetaData->setInt32(kKeyRequiresSecureBuffers, true);
     }
 #endif