Wire Up Max-Res Plumbing

(This is a port of http://go/wvgerrit/11556 from the Widevine CDM
repo.)

This wires up the new method on the crypto interface with the core
code that handles the max-res decode.

Bug: 16034599
Change-Id: Id2ea5635bf732eabf1fd33712ff8bab6cf1a1745

libwvdrmengine/cdm/core/include/cdm_engine.h

@@ -114,6 +114,10 @@ class CdmEngine {
   virtual bool DetachEventListener(const CdmSessionId& session_id,
                                    WvCdmEventListener* listener);
 
+  // Used for notifying the Max-Res Engine of resolution changes
+  virtual void NotifyResolution(const CdmSessionId& session_id, uint32_t width,
+                                uint32_t height);
+
   // Timer expiration method
   virtual void OnTimerEvent();
 

libwvdrmengine/cdm/core/include/cdm_session.h

@@ -80,6 +80,9 @@ class CdmSession {
   virtual bool AttachEventListener(WvCdmEventListener* listener);
   virtual bool DetachEventListener(WvCdmEventListener* listener);
 
+  // Used for notifying the Policy Engine of resolution changes
+  virtual void NotifyResolution(uint32_t width, uint32_t height);
+
   virtual void OnTimerEvent(bool update_usage);
   virtual void OnKeyReleaseEvent(const CdmKeySetId& key_set_id);
 

libwvdrmengine/cdm/core/include/policy_engine.h

@@ -56,6 +56,9 @@ class PolicyEngine {
   virtual void UpdateLicense(
       const video_widevine_server::sdk::License& license);
 
+  // Used for notifying the Policy Engine of resolution changes
+  virtual void NotifyResolution(uint32_t width, uint32_t height);
+
   virtual CdmResponseType Query(CdmQueryMap* key_info);
 
   virtual const LicenseIdentification& license_id() { return license_id_; }

libwvdrmengine/cdm/core/src/cdm_engine.cpp

@@ -760,7 +760,6 @@ bool CdmEngine::FindSessionForKey(
 bool CdmEngine::AttachEventListener(
     const CdmSessionId& session_id,
     WvCdmEventListener* listener) {
-
   CdmSessionMap::iterator iter = sessions_.find(session_id);
   if (iter == sessions_.end()) {
     return false;
@@ -772,7 +771,6 @@ bool CdmEngine::AttachEventListener(
 bool CdmEngine::DetachEventListener(
     const CdmSessionId& session_id,
     WvCdmEventListener* listener) {
-
   CdmSessionMap::iterator iter = sessions_.find(session_id);
   if (iter == sessions_.end()) {
     return false;
@@ -781,6 +779,14 @@ bool CdmEngine::DetachEventListener(
   return iter->second->DetachEventListener(listener);
 }
 
+void CdmEngine::NotifyResolution(const CdmSessionId& session_id, uint32_t width,
+                                 uint32_t height) {
+  CdmSessionMap::iterator iter = sessions_.find(session_id);
+  if (iter != sessions_.end()) {
+    iter->second->NotifyResolution(width, height);
+  }
+}
+
 bool CdmEngine::ValidateKeySystem(const CdmKeySystem& key_system) {
   return (key_system.find("widevine") != std::string::npos);
 }

libwvdrmengine/cdm/core/src/cdm_session.cpp

@@ -548,6 +548,10 @@ bool CdmSession::DetachEventListener(WvCdmEventListener* listener) {
   return (listeners_.erase(listener) == 1);
 }
 
+void CdmSession::NotifyResolution(uint32_t width, uint32_t height) {
+  policy_engine_->NotifyResolution(width, height);
+}
+
 void CdmSession::OnTimerEvent(bool update_usage) {
   bool event_occurred = false;
   CdmEventType event;

libwvdrmengine/cdm/core/src/policy_engine.cpp

@@ -208,6 +208,10 @@ void PolicyEngine::DecryptionEvent() {
   last_playback_time_ = clock_->GetCurrentTime();
 }
 
+void PolicyEngine::NotifyResolution(uint32_t width, uint32_t height) {
+  max_res_engine_.SetResolution(width, height);
+}
+
 CdmResponseType PolicyEngine::Query(CdmQueryMap* key_info) {
   std::stringstream ss;
   int64_t current_time = clock_->GetCurrentTime();

libwvdrmengine/cdm/include/wv_content_decryption_module.h

@@ -104,6 +104,9 @@ class WvContentDecryptionModule : public TimerHandler {
   virtual bool DetachEventListener(const CdmSessionId& session_id,
                                    WvCdmEventListener* listener);
 
+  virtual void NotifyResolution(const CdmSessionId& session_id, uint32_t width,
+                                uint32_t height);
+
  private:
   uint32_t GenerateSessionSharingId();
 

libwvdrmengine/cdm/src/wv_content_decryption_module.cpp

@@ -195,6 +195,12 @@ bool WvContentDecryptionModule::DetachEventListener(
   return cdm_engine_->DetachEventListener(session_id, listener);
 }
 
+void WvContentDecryptionModule::NotifyResolution(const CdmSessionId& session_id,
+                                                 uint32_t width,
+                                                 uint32_t height) {
+  cdm_engine_->NotifyResolution(session_id, width, height);
+}
+
 void WvContentDecryptionModule::EnablePolicyTimer() {
   if (!policy_timer_.IsRunning())
     policy_timer_.Start(this, kCdmPolicyTimerDurationSeconds);

libwvdrmengine/mediacrypto/include/WVCryptoPlugin.h

@@ -22,6 +22,8 @@ class WVCryptoPlugin : public android::CryptoPlugin {
 
   virtual bool requiresSecureDecoderComponent(const char* mime) const;
 
+  virtual void notifyResolution(uint32_t width, uint32_t height);
+
   virtual ssize_t decrypt(bool secure, const uint8_t key[16],
                           const uint8_t iv[16], Mode mode, const void* srcPtr,
                           const SubSample* subSamples, size_t numSubSamples,

libwvdrmengine/mediacrypto/src/WVCryptoPlugin.cpp

@@ -64,6 +64,10 @@ bool WVCryptoPlugin::requiresSecureDecoderComponent(const char* mime) const {
   }
 }
 
+void WVCryptoPlugin::notifyResolution(uint32_t width, uint32_t height) {
+  mCDM->NotifyResolution(mSessionId, width, height);
+}
+
 // Returns negative values for error code and
 // positive values for the size of decrypted data.  In theory, the output size
 // can be larger than the input size, but in practice this should never happen