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// 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.
#ifndef PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_
#define PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_
#include <string>
#include <vector>
#include "ppapi/c/private/pp_content_decryptor.h"
#include "ppapi/c/private/ppb_content_decryptor_private.h"
#include "ppapi/c/private/ppp_content_decryptor_private.h"
#include "ppapi/cpp/dev/buffer_dev.h"
#include "ppapi/cpp/instance_handle.h"
#include "ppapi/cpp/var.h"
#include "ppapi/cpp/var_array_buffer.h"
namespace pp {
class Instance;
// TODO(tomfinegan): Remove redundant pp:: usage, and pass VarArrayBuffers as
// const references.
class ContentDecryptor_Private {
public:
explicit ContentDecryptor_Private(Instance* instance);
virtual ~ContentDecryptor_Private();
// PPP_ContentDecryptor_Private functions exposed as virtual functions
// for you to override.
// TODO(tomfinegan): This could be optimized to pass pp::Var instead of
// strings. The change would allow the CDM wrapper to reuse vars when
// replying to the browser.
virtual void Initialize(const std::string& key_system) = 0;
virtual void SetServerCertificate(uint32_t promise_id,
pp::VarArrayBuffer server_certificate) = 0;
virtual void CreateSessionAndGenerateRequest(
uint32_t promise_id,
PP_SessionType session_type,
const std::string& init_data_type,
pp::VarArrayBuffer init_data) = 0;
virtual void LoadSession(uint32_t promise_id,
PP_SessionType session_type,
const std::string& web_session_id) = 0;
virtual void UpdateSession(uint32_t promise_id,
const std::string& web_session_id,
pp::VarArrayBuffer response) = 0;
virtual void CloseSession(uint32_t promise_id,
const std::string& web_session_id) = 0;
virtual void RemoveSession(uint32_t promise_id,
const std::string& web_session_id) = 0;
virtual void Decrypt(pp::Buffer_Dev encrypted_buffer,
const PP_EncryptedBlockInfo& encrypted_block_info) = 0;
virtual void InitializeAudioDecoder(
const PP_AudioDecoderConfig& decoder_config,
pp::Buffer_Dev extra_data_resource) = 0;
virtual void InitializeVideoDecoder(
const PP_VideoDecoderConfig& decoder_config,
pp::Buffer_Dev extra_data_resource) = 0;
virtual void DeinitializeDecoder(PP_DecryptorStreamType decoder_type,
uint32_t request_id) = 0;
virtual void ResetDecoder(PP_DecryptorStreamType decoder_type,
uint32_t request_id) = 0;
// Null |encrypted_frame| means end-of-stream buffer.
virtual void DecryptAndDecode(
PP_DecryptorStreamType decoder_type,
pp::Buffer_Dev encrypted_buffer,
const PP_EncryptedBlockInfo& encrypted_block_info) = 0;
// PPB_ContentDecryptor_Private methods for passing data from the decryptor
// to the browser.
void PromiseResolved(uint32_t promise_id);
void PromiseResolvedWithSession(uint32_t promise_id,
const std::string& web_session_id);
void PromiseRejected(uint32_t promise_id,
PP_CdmExceptionCode exception_code,
uint32_t system_code,
const std::string& error_description);
void SessionMessage(const std::string& web_session_id,
PP_CdmMessageType message_type,
pp::VarArrayBuffer message);
void SessionKeysChange(const std::string& web_session_id,
bool has_additional_usable_key,
const std::vector<PP_KeyInformation>& key_information);
void SessionExpirationChange(const std::string& web_session_id,
PP_Time new_expiry_time);
void SessionClosed(const std::string& web_session_id);
void SessionError(const std::string& web_session_id,
PP_CdmExceptionCode exception_code,
uint32_t system_code,
const std::string& error_description);
// The plugin must not hold a reference to the encrypted buffer resource
// provided to Decrypt() when it calls this method. The browser will reuse
// the buffer in a subsequent Decrypt() call.
void DeliverBlock(pp::Buffer_Dev decrypted_block,
const PP_DecryptedBlockInfo& decrypted_block_info);
void DecoderInitializeDone(PP_DecryptorStreamType decoder_type,
uint32_t request_id,
bool status);
void DecoderDeinitializeDone(PP_DecryptorStreamType decoder_type,
uint32_t request_id);
void DecoderResetDone(PP_DecryptorStreamType decoder_type,
uint32_t request_id);
// The plugin must not hold a reference to the encrypted buffer resource
// provided to DecryptAndDecode() when it calls this method. The browser will
// reuse the buffer in a subsequent DecryptAndDecode() call.
void DeliverFrame(pp::Buffer_Dev decrypted_frame,
const PP_DecryptedFrameInfo& decrypted_frame_info);
// The plugin must not hold a reference to the encrypted buffer resource
// provided to DecryptAndDecode() when it calls this method. The browser will
// reuse the buffer in a subsequent DecryptAndDecode() call.
void DeliverSamples(pp::Buffer_Dev audio_frames,
const PP_DecryptedSampleInfo& decrypted_sample_info);
private:
InstanceHandle associated_instance_;
};
} // namespace pp
#endif // PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_
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