| /* 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. |
| */ |
| |
| /** |
| * This file defines the <code>PPB_ContentDecryptor_Private</code> |
| * interface. Note: This is a special interface, only to be used for Content |
| * Decryption Modules, not normal plugins. |
| */ |
| |
| [generate_thunk] |
| |
| label Chrome { |
| M36 = 0.12 |
| }; |
| |
| /** |
| * <code>PPB_ContentDecryptor_Private</code> structure contains the function |
| * pointers the browser must implement to support plugins implementing the |
| * <code>PPP_ContentDecryptor_Private</code> interface. This interface provides |
| * browser side support for the Content Decryption Module (CDM) for Encrypted |
| * Media Extensions: http://www.w3.org/TR/encrypted-media/ |
| */ |
| interface PPB_ContentDecryptor_Private { |
| /** |
| * A promise has been resolved by the CDM. |
| * |
| * @param[in] promise_id Identifies the promise that the CDM resolved. |
| */ |
| void PromiseResolved( |
| [in] PP_Instance instance, |
| [in] uint32_t promise_id); |
| |
| /** |
| * A promise has been resolved by the CDM. |
| * |
| * @param[in] promise_id Identifies the promise that the CDM resolved. |
| * |
| * @param[in] web_session_id A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute. |
| */ |
| void PromiseResolvedWithSession( |
| [in] PP_Instance instance, |
| [in] uint32_t promise_id, |
| [in] PP_Var web_session_id); |
| |
| /** |
| * A promise has been rejected by the CDM due to an error. |
| * |
| * @param[in] promise_id Identifies the promise that the CDM rejected. |
| * |
| * @param[in] exception_code A <code>PP_CdmExceptionCode</code> containing |
| * the exception code. |
| * |
| * @param[in] system_code A system error code. |
| * |
| * @param[in] error_description A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the error description. |
| */ |
| void PromiseRejected( |
| [in] PP_Instance instance, |
| [in] uint32_t promise_id, |
| [in] PP_CdmExceptionCode exception_code, |
| [in] uint32_t system_code, |
| [in] PP_Var error_description); |
| |
| /** |
| * A message or request has been generated for key_system in the CDM, and |
| * must be sent to the web application. |
| * |
| * For example, when the browser invokes <code>CreateSession()</code> |
| * on the <code>PPP_ContentDecryptor_Private</code> interface, the plugin |
| * must send a message containing the license request. |
| * |
| * Note that <code>SessionMessage()</code> can be used for purposes other than |
| * responses to <code>CreateSession()</code> calls. See also the text |
| * in the comment for <code>SessionReady()</code>, which describes a sequence |
| * of <code>UpdateSession()</code> and <code>SessionMessage()</code> calls |
| * required to prepare for decryption. |
| * |
| * @param[in] web_session_id A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute for |
| * which the message is intended. |
| * |
| * @param[in] message A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_ARRAY_BUFFER</code> that contains the message. |
| * |
| * @param[in] destination_url A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the destination URL for the |
| * message. |
| */ |
| void SessionMessage( |
| [in] PP_Instance instance, |
| [in] PP_Var web_session_id, |
| [in] PP_Var message, |
| [in] PP_Var destination_url); |
| |
| /** |
| * The session is now ready to decrypt the media stream. |
| * |
| * Note: The above describes the most simple case. Depending on the key |
| * system, a series of <code>SessionMessage()</code> calls from the CDM will |
| * be sent to the browser, and then on to the web application. The web |
| * application must then provide more data to the CDM by directing the browser |
| * to pass the data to the CDM via calls to <code>UpdateSession()</code> on |
| * the <code>PPP_ContentDecryptor_Private</code> interface. |
| * The CDM must call <code>SessionReady()</code> when the sequence is |
| * completed, and, in response, the browser must notify the web application. |
| * |
| * @param[in] web_session_id A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute of |
| * the session that is now ready. |
| */ |
| void SessionReady( |
| [in] PP_Instance instance, |
| [in] PP_Var web_session_id); |
| |
| /** |
| * The session has been closed as the result of a call to the |
| * <code>ReleaseSession()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface, or due to other |
| * factors as determined by the CDM. |
| * |
| * @param[in] web_session_id A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute of |
| * the session that is now closed. |
| */ |
| void SessionClosed( |
| [in] PP_Instance instance, |
| [in] PP_Var web_session_id); |
| |
| /** |
| * An error occurred in a <code>PPP_ContentDecryptor_Private</code> method, |
| * or within the plugin implementing the interface. |
| * |
| * @param[in] web_session_id A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute of |
| * the session that caused the error. |
| * |
| * @param[in] exception_code A <code>PP_CdmExceptionCode</code> containing |
| * the exception code. |
| * |
| * @param[in] system_code A system error code. |
| * |
| * @param[in] error_description A <code>PP_Var</code> of type |
| * <code>PP_VARTYPE_STRING</code> containing the error description. |
| */ |
| void SessionError( |
| [in] PP_Instance instance, |
| [in] PP_Var web_session_id, |
| [in] PP_CdmExceptionCode exception_code, |
| [in] uint32_t system_code, |
| [in] PP_Var error_description); |
| |
| /** |
| * Called after the <code>Decrypt()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to |
| * deliver decrypted_block to the browser for decoding and rendering. |
| * |
| * The plugin must not hold a reference to the encrypted buffer resource |
| * provided to <code>Decrypt()</code> when it calls this method. The browser |
| * will reuse the buffer in a subsequent <code>Decrypt()</code> call. |
| * |
| * @param[in] decrypted_block A <code>PP_Resource</code> corresponding to a |
| * <code>PPB_Buffer_Dev</code> resource that contains a decrypted data |
| * block. |
| * |
| * @param[in] decrypted_block_info A <code>PP_DecryptedBlockInfo</code> that |
| * contains the result code and tracking info associated with the |
| * <code>decrypted_block</code>. |
| */ |
| void DeliverBlock( |
| [in] PP_Instance instance, |
| [in] PP_Resource decrypted_block, |
| [in] PP_DecryptedBlockInfo decrypted_block_info); |
| |
| /** |
| * Called after the <code>InitializeAudioDecoder()</code> or |
| * <code>InitializeVideoDecoder()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to report |
| * decoder initialization status to the browser. |
| * |
| * @param[in] success A <code>PP_Bool</code> that is set to |
| * <code>PP_TRUE</code> when the decoder initialization request associated |
| * with <code>request_id</code> was successful. |
| * |
| * @param[in] decoder_type A <code>PP_DecryptorStreamType</code> identifying |
| * the decoder type for which this initialization status response was sent. |
| * |
| * @param[in] request_id The <code>request_id</code> value passed to |
| * <code>InitializeAudioDecoder</code> or <code>InitializeVideoDecoder</code> |
| * in <code>PP_AudioDecoderConfig</code> or |
| * <code>PP_VideoDecoderConfig</code>. |
| */ |
| void DecoderInitializeDone( |
| [in] PP_Instance instance, |
| [in] PP_DecryptorStreamType decoder_type, |
| [in] uint32_t request_id, |
| [in] PP_Bool success); |
| |
| /** |
| * Called after the <code>DeinitializeDecoder()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to report |
| * decoder de-initialization completion to the browser. |
| * |
| * @param[in] decoder_type The <code>PP_DecryptorStreamType</code> passed to |
| * <code>DeinitializeDecoder()</code>. |
| * |
| * @param[in] request_id The <code>request_id</code> value passed to |
| * <code>DeinitializeDecoder()</code>. |
| */ |
| void DecoderDeinitializeDone( |
| [in] PP_Instance instance, |
| [in] PP_DecryptorStreamType decoder_type, |
| [in] uint32_t request_id); |
| |
| /** |
| * Called after the <code>ResetDecoder()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to report |
| * decoder reset completion to the browser. |
| * |
| * @param[in] decoder_type The <code>PP_DecryptorStreamType</code> passed to |
| * <code>ResetDecoder()</code>. |
| * |
| * @param[in] request_id The <code>request_id</code> value passed to |
| * <code>ResetDecoder()</code>. |
| */ |
| void DecoderResetDone( |
| [in] PP_Instance instance, |
| [in] PP_DecryptorStreamType decoder_type, |
| [in] uint32_t request_id); |
| |
| /** |
| * Called after the <code>DecryptAndDecode()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to deliver |
| * a decrypted and decoded video frame to the browser for rendering. |
| * |
| * The plugin must not hold a reference to the encrypted buffer resource |
| * provided to <code>DecryptAndDecode()</code> when it calls this method. The |
| * browser will reuse the buffer in a subsequent |
| * <code>DecryptAndDecode()</code> call. |
| * |
| * @param[in] decrypted_frame A <code>PP_Resource</code> corresponding to a |
| * <code>PPB_Buffer_Dev</code> resource that contains a video frame. |
| * |
| * @param[in] decrypted_frame_info A <code>PP_DecryptedFrameInfo</code> that |
| * contains the result code, tracking info, and buffer format associated with |
| * <code>decrypted_frame</code>. |
| */ |
| void DeliverFrame( |
| [in] PP_Instance instance, |
| [in] PP_Resource decrypted_frame, |
| [in] PP_DecryptedFrameInfo decrypted_frame_info); |
| |
| /** |
| * Called after the <code>DecryptAndDecode()</code> method on the |
| * <code>PPP_ContentDecryptor_Private</code> interface completes to deliver |
| * a buffer of decrypted and decoded audio samples to the browser for |
| * rendering. |
| * |
| * The plugin must not hold a reference to the encrypted buffer resource |
| * provided to <code>DecryptAndDecode()</code> when it calls this method. The |
| * browser will reuse the buffer in a subsequent |
| * <code>DecryptAndDecode()</code> call. |
| * |
| * <code>audio_frames</code> can contain multiple audio output buffers. Each |
| * buffer is serialized in this format: |
| * |
| * |<------------------- serialized audio buffer ------------------->| |
| * | int64_t timestamp | int64_t length | length bytes of audio data | |
| * |
| * For example, with three audio output buffers, |audio_frames| will look |
| * like this: |
| * |
| * |<---------------- audio_frames ------------------>| |
| * | audio buffer 0 | audio buffer 1 | audio buffer 2 | |
| * |
| * @param[in] audio_frames A <code>PP_Resource</code> corresponding to a |
| * <code>PPB_Buffer_Dev</code> resource that contains a decrypted buffer |
| * of decoded audio samples. |
| * |
| * @param[in] decrypted_sample_info A <code>PP_DecryptedSampleInfo</code> that |
| * contains the tracking info and result code associated with the decrypted |
| * samples. |
| */ |
| void DeliverSamples( |
| [in] PP_Instance instance, |
| [in] PP_Resource audio_frames, |
| [in] PP_DecryptedSampleInfo decrypted_sample_info); |
| }; |