| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef HDCP_API_H_ |
| |
| #define HDCP_API_H_ |
| |
| #include <utils/Errors.h> |
| |
| namespace android { |
| |
| struct HDCPModule { |
| typedef void (*ObserverFunc)(void *cookie, int msg, int ext1, int ext2); |
| |
| // The msg argument in calls to the observer notification function. |
| enum { |
| // Sent in response to a call to "HDCPModule::initAsync" once |
| // initialization has either been successfully completed, |
| // i.e. the HDCP session is now fully setup (AKE, Locality Check, |
| // SKE and any authentication with repeaters completed) or failed. |
| // ext1 should be a suitable error code (status_t), ext2 is |
| // unused. |
| HDCP_INITIALIZATION_COMPLETE, |
| HDCP_INITIALIZATION_FAILED, |
| |
| // Sent upon completion of a call to "HDCPModule::shutdownAsync". |
| // ext1 should be a suitable error code, ext2 is unused. |
| HDCP_SHUTDOWN_COMPLETE, |
| HDCP_SHUTDOWN_FAILED, |
| |
| HDCP_UNAUTHENTICATED_CONNECTION, |
| HDCP_UNAUTHORIZED_CONNECTION, |
| HDCP_REVOKED_CONNECTION, |
| HDCP_TOPOLOGY_EXECEEDED, |
| HDCP_UNKNOWN_ERROR, |
| }; |
| |
| // Module can call the notification function to signal completion/failure |
| // of asynchronous operations (such as initialization) or out of band |
| // events. |
| HDCPModule(void *cookie, ObserverFunc observerNotify) {}; |
| |
| virtual ~HDCPModule() {}; |
| |
| // Request to setup an HDCP session with the specified host listening |
| // on the specified port. |
| virtual status_t initAsync(const char *host, unsigned port) = 0; |
| |
| // Request to shutdown the active HDCP session. |
| virtual status_t shutdownAsync() = 0; |
| |
| // Encrypt a data according to the HDCP spec. The data is to be |
| // encrypted in-place, only size bytes of data should be read/write, |
| // even if the size is not a multiple of 128 bit (16 bytes). |
| // This operation is to be synchronous, i.e. this call does not return |
| // until outData contains size bytes of encrypted data. |
| // streamCTR will be assigned by the caller (to 0 for the first PES stream, |
| // 1 for the second and so on) |
| // inputCTR will be maintained by the callee for each PES stream. |
| virtual status_t encrypt( |
| const void *inData, size_t size, uint32_t streamCTR, |
| uint64_t *outInputCTR, void *outData) = 0; |
| |
| private: |
| HDCPModule(const HDCPModule &); |
| HDCPModule &operator=(const HDCPModule &); |
| }; |
| |
| } // namespace android |
| |
| // A shared library exporting the following method should be included to |
| // support HDCP functionality. The shared library must be called |
| // "libstagefright_hdcp.so", it will be dynamically loaded into the |
| // mediaserver process. |
| extern "C" { |
| extern android::HDCPModule *createHDCPModule( |
| void *cookie, android::HDCPModule::ObserverFunc); |
| } |
| |
| #endif // HDCP_API_H_ |
| |