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 <string> 9 10 #include "ppapi/c/private/pp_content_decryptor.h" 11 #include "ppapi/c/private/ppb_content_decryptor_private.h" 12 #include "ppapi/c/private/ppp_content_decryptor_private.h" 13 14 #include "ppapi/cpp/dev/buffer_dev.h" 15 #include "ppapi/cpp/instance_handle.h" 16 #include "ppapi/cpp/var.h" 17 #include "ppapi/cpp/var_array_buffer.h" 18 19 namespace pp { 20 21 class Instance; 22 23 // TODO(tomfinegan): Remove redundant pp:: usage, and pass VarArrayBuffers as 24 // const references. 25 26 class ContentDecryptor_Private { 27 public: 28 explicit ContentDecryptor_Private(Instance* instance); 29 virtual ~ContentDecryptor_Private(); 30 31 // PPP_ContentDecryptor_Private functions exposed as virtual functions 32 // for you to override. 33 // TODO(tomfinegan): This could be optimized to pass pp::Var instead of 34 // strings. The change would allow the CDM wrapper to reuse vars when 35 // replying to the browser. 36 virtual void Initialize(const std::string& key_system) = 0; 37 virtual void CreateSession(uint32_t promise_id, 38 const std::string& init_data_type, 39 pp::VarArrayBuffer init_data, 40 PP_SessionType session_type) = 0; 41 virtual void LoadSession(uint32_t promise_id, 42 const std::string& web_session_id) = 0; 43 virtual void UpdateSession(uint32_t promise_id, 44 const std::string& web_session_id, 45 pp::VarArrayBuffer response) = 0; 46 virtual void ReleaseSession(uint32_t promise_id, 47 const std::string& web_session_id) = 0; 48 virtual void Decrypt(pp::Buffer_Dev encrypted_buffer, 49 const PP_EncryptedBlockInfo& encrypted_block_info) = 0; 50 virtual void InitializeAudioDecoder( 51 const PP_AudioDecoderConfig& decoder_config, 52 pp::Buffer_Dev extra_data_resource) = 0; 53 virtual void InitializeVideoDecoder( 54 const PP_VideoDecoderConfig& decoder_config, 55 pp::Buffer_Dev extra_data_resource) = 0; 56 virtual void DeinitializeDecoder(PP_DecryptorStreamType decoder_type, 57 uint32_t request_id) = 0; 58 virtual void ResetDecoder(PP_DecryptorStreamType decoder_type, 59 uint32_t request_id) = 0; 60 // Null |encrypted_frame| means end-of-stream buffer. 61 virtual void DecryptAndDecode( 62 PP_DecryptorStreamType decoder_type, 63 pp::Buffer_Dev encrypted_buffer, 64 const PP_EncryptedBlockInfo& encrypted_block_info) = 0; 65 66 // PPB_ContentDecryptor_Private methods for passing data from the decryptor 67 // to the browser. 68 void PromiseResolved(uint32_t promise_id); 69 void PromiseResolvedWithSession(uint32_t promise_id, 70 const std::string& web_session_id); 71 void PromiseRejected(uint32_t promise_id, 72 PP_CdmExceptionCode exception_code, 73 uint32_t system_code, 74 const std::string& error_description); 75 void SessionMessage(const std::string& web_session_id, 76 pp::VarArrayBuffer message, 77 const std::string& destination_url); 78 void SessionReady(const std::string& web_session_id); 79 void SessionClosed(const std::string& web_session_id); 80 void SessionError(const std::string& web_session_id, 81 PP_CdmExceptionCode exception_code, 82 uint32_t system_code, 83 const std::string& error_description); 84 85 // The plugin must not hold a reference to the encrypted buffer resource 86 // provided to Decrypt() when it calls this method. The browser will reuse 87 // the buffer in a subsequent Decrypt() call. 88 void DeliverBlock(pp::Buffer_Dev decrypted_block, 89 const PP_DecryptedBlockInfo& decrypted_block_info); 90 91 void DecoderInitializeDone(PP_DecryptorStreamType decoder_type, 92 uint32_t request_id, 93 bool status); 94 void DecoderDeinitializeDone(PP_DecryptorStreamType decoder_type, 95 uint32_t request_id); 96 void DecoderResetDone(PP_DecryptorStreamType decoder_type, 97 uint32_t request_id); 98 99 // The plugin must not hold a reference to the encrypted buffer resource 100 // provided to DecryptAndDecode() when it calls this method. The browser will 101 // reuse the buffer in a subsequent DecryptAndDecode() call. 102 void DeliverFrame(pp::Buffer_Dev decrypted_frame, 103 const PP_DecryptedFrameInfo& decrypted_frame_info); 104 105 // The plugin must not hold a reference to the encrypted buffer resource 106 // provided to DecryptAndDecode() when it calls this method. The browser will 107 // reuse the buffer in a subsequent DecryptAndDecode() call. 108 void DeliverSamples(pp::Buffer_Dev audio_frames, 109 const PP_DecryptedSampleInfo& decrypted_sample_info); 110 111 private: 112 InstanceHandle associated_instance_; 113 }; 114 115 } // namespace pp 116 117 #endif // PPAPI_CPP_PRIVATE_CONTENT_DECRYPTOR_PRIVATE_H_ 118
