/* 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. */ /* From private/ppp_content_decryptor_private.idl, * modified Mon Feb 10 13:23:32 2014. */ #ifndef PPAPI_C_PRIVATE_PPP_CONTENT_DECRYPTOR_PRIVATE_H_ #define PPAPI_C_PRIVATE_PPP_CONTENT_DECRYPTOR_PRIVATE_H_ #include "ppapi/c/pp_bool.h" #include "ppapi/c/pp_instance.h" #include "ppapi/c/pp_macros.h" #include "ppapi/c/pp_resource.h" #include "ppapi/c/pp_stdint.h" #include "ppapi/c/pp_var.h" #include "ppapi/c/private/pp_content_decryptor.h" #define PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE_0_11 \ "PPP_ContentDecryptor_Private;0.11" #define PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE \ PPP_CONTENTDECRYPTOR_PRIVATE_INTERFACE_0_11 /** * @file * This file defines the <code>PPP_ContentDecryptor_Private</code> * interface. Note: This is a special interface, only to be used for Content * Decryption Modules, not normal plugins. */ /** * @addtogroup Interfaces * @{ */ /** * <code>PPP_ContentDecryptor_Private</code> structure contains the function * pointers the decryption plugin must implement to provide services needed by * the browser. This interface provides the plugin side support for the Content * Decryption Module (CDM) for Encrypted Media Extensions: * http://www.w3.org/TR/encrypted-media/ */ struct PPP_ContentDecryptor_Private_0_11 { /** * Initialize for the specified key system. * * @param[in] key_system A <code>PP_Var</code> of type * <code>PP_VARTYPE_STRING</code> containing the name of the key system. */ void (*Initialize)(PP_Instance instance, struct PP_Var key_system); /** * Creates a session. <code>content_type</code> contains the MIME type of * <code>init_data</code>. <code>init_data</code> is a data buffer * containing data for use in generating the request. * * Note: <code>CreateSession()</code> must create a web session ID and provide * it to the browser via <code>SessionCreated()</code> on the * <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] session_id A reference for the session for which a session * should be generated. * * @param[in] content_type A <code>PP_Var</code> of type * <code>PP_VARTYPE_STRING</code> containing the MIME type for init_data. * * @param[in] init_data A <code>PP_Var</code> of type * <code>PP_VARTYPE_ARRAYBUFFER</code> containing container specific * initialization data. */ void (*CreateSession)(PP_Instance instance, uint32_t session_id, struct PP_Var content_type, struct PP_Var init_data); /** * Loads a session whose web session ID is <code>web_session_id</code>. * * Note: After the session is successfully loaded, the CDM must call * <code>SessionCreated()</code> with <code>web_session_id</code> on the * <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] session_id A reference for the session for which a session * should be loaded. * * @param[in] web_session_id A <code>PP_Var</code> of type * <code>PP_VARTYPE_STRING</code> containing the web session ID of the session * to load. */ void (*LoadSession)(PP_Instance instance, uint32_t session_id, struct PP_Var web_session_id); /** * Provides a license or other message to the decryptor. * * When the CDM needs more information, it must call * <code>SessionMessage()</code> on the * <code>PPB_ContentDecryptor_Private</code> interface, and the browser * must notify the web application. When the CDM has finished processing * <code>response</code> and needs no more information, it must call * <code>SessionReady()</code> on the * <code>PPB_ContentDecryptor_Private</code> interface, and the browser * must notify the web application. * * @param[in] session_id A reference for the session to update. * * @param[in] response A <code>PP_Var</code> of type * <code>PP_VARTYPE_ARRAYBUFFER</code> containing the license or other * message for the given session ID. */ void (*UpdateSession)(PP_Instance instance, uint32_t session_id, struct PP_Var response); /** * Release the specified session and related resources. * * @param[in] session_id A reference for the session that should be * released. */ void (*ReleaseSession)(PP_Instance instance, uint32_t session_id); /** * Decrypts the block and returns the unencrypted block via * <code>DeliverBlock()</code> on the * <code>PPB_ContentDecryptor_Private</code> interface. The returned block * contains encoded data. * * @param[in] resource A <code>PP_Resource</code> corresponding to a * <code>PPB_Buffer_Dev</code> resource that contains an encrypted data * block. * * @param[in] encrypted_block_info A <code>PP_EncryptedBlockInfo</code> that * contains all auxiliary information needed for decryption of the * <code>encrypted_block</code>. */ void (*Decrypt)(PP_Instance instance, PP_Resource encrypted_block, const struct PP_EncryptedBlockInfo* encrypted_block_info); /** * Initializes the audio decoder using codec and settings in * <code>decoder_config</code>, and returns the result of the initialization * request to the browser using the <code>DecoderInitializeDone( )</code> method * on the <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] decoder_config A <code>PP_AudioDecoderConfig</code> that * contains audio decoder settings and a request ID. The request ID is passed * to the <code>DecoderInitializeDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface to allow clients to * associate the result with a audio decoder initialization request. * * @param[in] codec_extra_data A <code>PP_Resource</code> corresponding to a * <code>PPB_Buffer_Dev</code> resource containing codec setup data required * by some codecs. It should be set to 0 when the codec being initialized * does not require it. */ void (*InitializeAudioDecoder)( PP_Instance instance, const struct PP_AudioDecoderConfig* decoder_config, PP_Resource codec_extra_data); /** * Initializes the video decoder using codec and settings in * <code>decoder_config</code>, and returns the result of the initialization * request to the browser using the <code>DecoderInitializeDone()</code> * method on the <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] decoder_config A <code>PP_VideoDecoderConfig</code> that * contains video decoder settings and a request ID. The request ID is passed * to the <code>DecoderInitializeDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface to allow clients to * associate the result with a video decoder initialization request. * * @param[in] codec_extra_data A <code>PP_Resource</code> corresponding to a * <code>PPB_Buffer_Dev</code> resource containing codec setup data required * by some codecs. It should be set to 0 when the codec being initialized * does not require it. */ void (*InitializeVideoDecoder)( PP_Instance instance, const struct PP_VideoDecoderConfig* decoder_config, PP_Resource codec_extra_data); /** * De-initializes the decoder for the <code>PP_DecryptorStreamType</code> * specified by <code>decoder_type</code> and sets it to an uninitialized * state. The decoder can be re-initialized after de-initialization completes * by calling <code>InitializeAudioDecoder</code> or * <code>InitializeVideoDecoder</code>. * * De-initialization completion is reported to the browser using the * <code>DecoderDeinitializeDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] decoder_type A <code>PP_DecryptorStreamType</code> that * specifies the decoder to de-initialize. * * @param[in] request_id A request ID that allows the browser to associate a * request to de-initialize a decoder with the corresponding call to the * <code>DecoderDeinitializeDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface. */ void (*DeinitializeDecoder)(PP_Instance instance, PP_DecryptorStreamType decoder_type, uint32_t request_id); /** * Resets the decoder for the <code>PP_DecryptorStreamType</code> specified * by <code>decoder_type</code> to an initialized clean state. Reset * completion is reported to the browser using the * <code>DecoderResetDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface. This method can be * used to signal a discontinuity in the encoded data stream, and is safe to * call multiple times. * * @param[in] decoder_type A <code>PP_DecryptorStreamType</code> that * specifies the decoder to reset. * * @param[in] request_id A request ID that allows the browser to associate a * request to reset the decoder with a corresponding call to the * <code>DecoderResetDone()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface. */ void (*ResetDecoder)(PP_Instance instance, PP_DecryptorStreamType decoder_type, uint32_t request_id); /** * Decrypts encrypted_buffer, decodes it, and returns the unencrypted * uncompressed (decoded) data to the browser via the * <code>DeliverFrame()</code> or <code>DeliverSamples()</code> method on the * <code>PPB_ContentDecryptor_Private</code> interface. * * @param[in] decoder_type A <code>PP_DecryptorStreamType</code> that * specifies the decoder to use after <code>encrypted_buffer</code> is * decrypted. * * @param[in] encrypted_buffer A <code>PP_Resource</code> corresponding to a * <code>PPB_Buffer_Dev</code> resource that contains encrypted media data. * * @param[in] encrypted_block_info A <code>PP_EncryptedBlockInfo</code> that * contains all auxiliary information needed for decryption of the * <code>encrypted_block</code>. */ void (*DecryptAndDecode)( PP_Instance instance, PP_DecryptorStreamType decoder_type, PP_Resource encrypted_buffer, const struct PP_EncryptedBlockInfo* encrypted_block_info); }; typedef struct PPP_ContentDecryptor_Private_0_11 PPP_ContentDecryptor_Private; /** * @} */ #endif /* PPAPI_C_PRIVATE_PPP_CONTENT_DECRYPTOR_PRIVATE_H_ */