Add decoder de-initialize and reset to the Pepper CDM API.

webkit/media/crypto/ppapi/cdm_wrapper.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cstring>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 360 matching lines @@
   // PPB_ContentDecryptor_Private interface.
   virtual void GenerateKeyRequest(const std::string& key_system,
                                   pp::VarArrayBuffer init_data) OVERRIDE;
   virtual void AddKey(const std::string& session_id,
                       pp::VarArrayBuffer key,
                       pp::VarArrayBuffer init_data) OVERRIDE;
   virtual void CancelKeyRequest(const std::string& session_id) OVERRIDE;
   virtual void Decrypt(
       pp::Buffer_Dev encrypted_buffer,
       const PP_EncryptedBlockInfo& encrypted_block_info) OVERRIDE;
+  virtual void ResetVideoDecoder(uint32_t request_id);
+  virtual void StopVideoDecoder(uint32_t request_id);
   virtual void DecryptAndDecodeFrame(
       pp::Buffer_Dev encrypted_frame,
       const PP_EncryptedVideoFrameInfo& encrypted_video_frame_info) OVERRIDE;
 
  private:
   typedef linked_ptr<DecryptedBlockImpl> LinkedDecryptedBlock;
   typedef linked_ptr<KeyMessageImpl> LinkedKeyMessage;
   typedef linked_ptr<VideoFrameImpl> LinkedVideoFrame;
 
   // <code>PPB_ContentDecryptor_Private</code> dispatchers. These are passed to
   // <code>callback_factory_</code> to ensure that calls into
   // <code>PPP_ContentDecryptor_Private</code> are asynchronous.
   void KeyAdded(int32_t result, const std::string& session_id);
   void KeyMessage(int32_t result, const LinkedKeyMessage& message);
   void KeyError(int32_t result, const std::string& session_id);
   void DeliverBlock(int32_t result,
                     const cdm::Status& status,
                     const LinkedDecryptedBlock& decrypted_block,
                     const PP_DecryptTrackingInfo& tracking_info);
+  void DecoderReset(int32_t result, uint32_t request_id);
+  void DecoderStopped(int32_t result, uint32_t request_id);
   void DeliverFrame(int32_t result,
                     const cdm::Status& status,
                     const LinkedVideoFrame& video_frame,
                     const PP_DecryptTrackingInfo& tracking_info);
 
   PpbBufferAllocator allocator_;
   pp::CompletionCallbackFactory<CdmWrapper> callback_factory_;
   cdm::ContentDecryptionModule* cdm_;
   std::string key_system_;
 };
@@ skipping 113 matching lines @@
   LinkedDecryptedBlock decrypted_block(new DecryptedBlockImpl());
   cdm::Status status = cdm_->Decrypt(input_buffer, decrypted_block.get());
 
   CallOnMain(callback_factory_.NewCallback(
       &CdmWrapper::DeliverBlock,
       status,
       decrypted_block,
       encrypted_block_info.tracking_info));
 }
 
+void CdmWrapper::ResetVideoDecoder(uint32_t request_id) {
+  // TODO(tomfinegan): Implement ResetVideoDecoder in clear key CDM, and call
+  // it here.
+  CallOnMain(callback_factory_.NewCallback(&CdmWrapper::DecoderReset,
+                                           request_id));
+}
+
+void CdmWrapper::StopVideoDecoder(uint32_t request_id) {
+  // TODO(tomfinegan): Implement StopVideoDecoder in clear key CDM, and call it
+  // here.
+  CallOnMain(callback_factory_.NewCallback(&CdmWrapper::DecoderStopped,
+                                           request_id));
+}
+
 void CdmWrapper::DecryptAndDecodeFrame(
     pp::Buffer_Dev encrypted_frame,
     const PP_EncryptedVideoFrameInfo& encrypted_video_frame_info) {
   PP_DCHECK(!encrypted_frame.is_null());
   PP_DCHECK(cdm_);
 
   cdm::InputBuffer input_buffer;
   std::vector<cdm::SubsampleEntry> subsamples;
   ConfigureInputBuffer(encrypted_frame,
                        encrypted_video_frame_info.encryption_info,
@@ skipping 57 matching lines @@
   }
 
   const pp::Buffer_Dev& buffer =
       decrypted_block.get() && decrypted_block->buffer() ?
       static_cast<PpbBuffer*>(decrypted_block->buffer())->buffer_dev() :
           pp::Buffer_Dev();
 
   pp::ContentDecryptor_Private::DeliverBlock(buffer, decrypted_block_info);
 }
 
+void CdmWrapper::DecoderReset(int32_t result, uint32_t request_id) {
+  pp::ContentDecryptor_Private::DecoderReset(request_id);
+}
+
+void CdmWrapper::DecoderStopped(int32_t result, uint32_t request_id) {
+  pp::ContentDecryptor_Private::DecoderStopped(request_id);
+}
+
 void CdmWrapper::DeliverFrame(
     int32_t result,
     const cdm::Status& status,
     const LinkedVideoFrame& video_frame,
     const PP_DecryptTrackingInfo& tracking_info) {
   PP_DecryptedFrameInfo decrypted_frame_info;
   decrypted_frame_info.tracking_info = tracking_info;
 
   switch (status) {
     case cdm::kSuccess:
@@ skipping 55 matching lines @@
 }  // namespace webkit_media
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new webkit_media::CdmWrapperModule();
 }
 
 }  // namespace pp