Add CryptoPluginMode to WV extractor

Allows the WV extractor to run in a mode that is compatible with
the DRM CryptoPlugin HAL API, where decryption is deferred
until the encrypted data is sent through the CryptoPlugin to
the codec.

This patch does:
 (1) Adds a flag mCryptoPluginMode that controls this behavior
     [Note: need framework support to enable/disable this]
 (2) Accumulates information in track metadata to delineate
     crypto unit boundaries for the CryptoPlugin

related-to-bug: 5986621

Change-Id: I3318d5cde38c7b02a7bdb56aca9aece852c9781c

proprietary/wvm/WVMExtractorImpl.cpp

@@ -98,7 +98,8 @@ WVMExtractorImpl::WVMExtractorImpl(sp<DataSource> dataSource)
       mIsLiveStream(false),
       mSession(NULL),
       mSetupStatus(OK),
-      mUIDIsSet(false)
+      mUIDIsSet(false),
+      mCryptoPluginMode(false)
 {
     dataSource->getDrmInfo(sDecryptHandle, &sDrmManagerClient);
 
@@ -340,12 +341,18 @@ status_t WVMExtractorImpl::readMetaData()
 
     mVideoSource->delegateDataSource(mDataSource);
 
-    mFileMetaData->setCString(kKeyMIMEType, "video/mp4");
+    mFileMetaData->setCString(kKeyMIMEType, "video/wvm");
 
     mHaveMetaData = true;
 
     mInfoListener->configureHeartbeat();
 
+    if (mCryptoPluginMode) {
+        // In crypto plugin mode, need to trigger the drm plugin to begin
+        // license use on playback since the media player isn't involved.
+        sDrmManagerClient->setPlaybackStatus(sDecryptHandle, Playback::START, 0);
+    }
+
     return OK;
 }
 
@@ -514,6 +521,18 @@ bool WVMExtractorImpl::getAdaptiveStreamingMode() const
     return mUseAdaptiveStreaming;
 }
 
+void WVMExtractorImpl::setCryptoPluginMode(bool cryptoPluginMode)
+{
+    //ALOGD("WVMExtractorImpl::setCryptoPluginMode(%d)", cryptoPluginMode);
+    mCryptoPluginMode = cryptoPluginMode;
+}
+
+bool WVMExtractorImpl::getCryptoPluginMode() const
+{
+    //ALOGD("WVMExtractorImpl::getCryptoPluginMode - %d", mCryptoPluginMode);
+    return mCryptoPluginMode;
+}
+
 void WVMExtractorImpl::setUID(uid_t uid)
 {
     //ALOGD("WVMExtractorImpl::setUID(%d)", (uint32_t)uid);