2 * Copyright (C) 2012 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
21 #include <utils/Errors.h>
26 typedef void (*ObserverFunc)(void *cookie, int msg, int ext1, int ext2);
28 // The msg argument in calls to the observer notification function.
30 // Sent in response to a call to "HDCPModule::initAsync" once
31 // initialization has either been successfully completed,
32 // i.e. the HDCP session is now fully setup (AKE, Locality Check,
33 // SKE and any authentication with repeaters completed) or failed.
34 // ext1 should be a suitable error code (status_t), ext2 is
36 HDCP_INITIALIZATION_COMPLETE,
37 HDCP_INITIALIZATION_FAILED,
39 // Sent upon completion of a call to "HDCPModule::shutdownAsync".
40 // ext1 should be a suitable error code, ext2 is unused.
41 HDCP_SHUTDOWN_COMPLETE,
44 HDCP_UNAUTHENTICATED_CONNECTION,
45 HDCP_UNAUTHORIZED_CONNECTION,
46 HDCP_REVOKED_CONNECTION,
47 HDCP_TOPOLOGY_EXECEEDED,
51 // Module can call the notification function to signal completion/failure
52 // of asynchronous operations (such as initialization) or out of band
54 HDCPModule(void *cookie, ObserverFunc observerNotify) {};
56 virtual ~HDCPModule() {};
58 // Request to setup an HDCP session with the specified host listening
59 // on the specified port.
60 virtual status_t initAsync(const char *host, unsigned port) = 0;
62 // Request to shutdown the active HDCP session.
63 virtual status_t shutdownAsync() = 0;
65 // Encrypt a data according to the HDCP spec. The data is to be
66 // encrypted in-place, only size bytes of data should be read/write,
67 // even if the size is not a multiple of 128 bit (16 bytes).
68 // This operation is to be synchronous, i.e. this call does not return
69 // until outData contains size bytes of encrypted data.
70 // streamCTR will be assigned by the caller (to 0 for the first PES stream,
71 // 1 for the second and so on)
72 // inputCTR will be maintained by the callee for each PES stream.
73 virtual status_t encrypt(
74 const void *inData, size_t size, uint32_t streamCTR,
75 uint64_t *outInputCTR, void *outData) = 0;
78 HDCPModule(const HDCPModule &);
79 HDCPModule &operator=(const HDCPModule &);
82 } // namespace android
84 // A shared library exporting the following method should be included to
85 // support HDCP functionality. The shared library must be called
86 // "libstagefright_hdcp.so", it will be dynamically loaded into the
87 // mediaserver process.
89 extern android::HDCPModule *createHDCPModule(
90 void *cookie, android::HDCPModule::ObserverFunc);