1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_ 6 #define PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_ 7 8 #include "ppapi/c/private/pp_content_decryptor.h" 9 #include "ppapi/c/private/ppb_content_decryptor_private.h" 10 #include "ppapi/c/private/ppp_content_decryptor_private.h" 11 12 #include "ppapi/cpp/dev/buffer_dev.h" 13 #include "ppapi/cpp/instance_handle.h" 14 #include "ppapi/cpp/var.h" 15 #include "ppapi/cpp/var_array_buffer.h" 16 17 namespace pp { 18 19 class Instance; 20 21 // TODO(tomfinegan): Remove redundant pp:: usage, and pass VarArrayBuffers as 22 // const references. 23 24 class ContentDecryptor_Private { 25 public: 26 explicit ContentDecryptor_Private(Instance* instance); 27 virtual ~ContentDecryptor_Private(); 28 29 // PPP_ContentDecryptor_Private functions exposed as virtual functions 30 // for you to override. 31 // TODO(tomfinegan): This could be optimized to pass pp::Var instead of 32 // strings. The change would allow the CDM wrapper to reuse vars when 33 // replying to the browser. 34 virtual void GenerateKeyRequest(const std::string& key_system, 35 const std::string& type, 36 pp::VarArrayBuffer init_data) = 0; 37 virtual void AddKey(const std::string& session_id, 38 pp::VarArrayBuffer key, 39 pp::VarArrayBuffer init_data) = 0; 40 virtual void CancelKeyRequest(const std::string& session_id) = 0; 41 virtual void Decrypt(pp::Buffer_Dev encrypted_buffer, 42 const PP_EncryptedBlockInfo& encrypted_block_info) = 0; 43 virtual void InitializeAudioDecoder( 44 const PP_AudioDecoderConfig& decoder_config, 45 pp::Buffer_Dev extra_data_resource) = 0; 46 virtual void InitializeVideoDecoder( 47 const PP_VideoDecoderConfig& decoder_config, 48 pp::Buffer_Dev extra_data_resource) = 0; 49 virtual void DeinitializeDecoder(PP_DecryptorStreamType decoder_type, 50 uint32_t request_id) = 0; 51 virtual void ResetDecoder(PP_DecryptorStreamType decoder_type, 52 uint32_t request_id) = 0; 53 // Null |encrypted_frame| means end-of-stream buffer. 54 virtual void DecryptAndDecode( 55 PP_DecryptorStreamType decoder_type, 56 pp::Buffer_Dev encrypted_buffer, 57 const PP_EncryptedBlockInfo& encrypted_block_info) = 0; 58 59 // PPB_ContentDecryptor_Private methods for passing data from the decryptor 60 // to the browser. 61 void NeedKey(const std::string& key_system, 62 const std::string& session_id, 63 pp::VarArrayBuffer init_data); 64 void KeyAdded(const std::string& key_system, 65 const std::string& session_id); 66 void KeyMessage(const std::string& key_system, 67 const std::string& session_id, 68 pp::VarArrayBuffer message, 69 const std::string& default_url); 70 void KeyError(const std::string& key_system, 71 const std::string& session_id, 72 int32_t media_error, 73 int32_t system_code); 74 75 // The plugin must not hold a reference to the encrypted buffer resource 76 // provided to Decrypt() when it calls this method. The browser will reuse 77 // the buffer in a subsequent Decrypt() call. 78 void DeliverBlock(pp::Buffer_Dev decrypted_block, 79 const PP_DecryptedBlockInfo& decrypted_block_info); 80 81 void DecoderInitializeDone(PP_DecryptorStreamType decoder_type, 82 uint32_t request_id, 83 bool status); 84 void DecoderDeinitializeDone(PP_DecryptorStreamType decoder_type, 85 uint32_t request_id); 86 void DecoderResetDone(PP_DecryptorStreamType decoder_type, 87 uint32_t request_id); 88 89 // The plugin must not hold a reference to the encrypted buffer resource 90 // provided to DecryptAndDecode() when it calls this method. The browser will 91 // reuse the buffer in a subsequent DecryptAndDecode() call. 92 void DeliverFrame(pp::Buffer_Dev decrypted_frame, 93 const PP_DecryptedFrameInfo& decrypted_frame_info); 94 95 // The plugin must not hold a reference to the encrypted buffer resource 96 // provided to DecryptAndDecode() when it calls this method. The browser will 97 // reuse the buffer in a subsequent DecryptAndDecode() call. 98 void DeliverSamples(pp::Buffer_Dev audio_frames, 99 const PP_DecryptedBlockInfo& decrypted_block_info); 100 101 private: 102 InstanceHandle associated_instance_; 103 }; 104 105 } // namespace pp 106 107 #endif // PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_ 108
