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