120 lines
5 KiB
C++
120 lines
5 KiB
C++
/*
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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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#include <binder/IInterface.h>
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#include <media/hardware/HDCPAPI.h>
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#include <media/stagefright/foundation/ABase.h>
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#include <ui/GraphicBuffer.h>
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namespace android {
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struct IHDCPObserver : public IInterface {
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DECLARE_META_INTERFACE(HDCPObserver);
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virtual void notify(
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int msg, int ext1, int ext2, const Parcel *obj) = 0;
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private:
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DISALLOW_EVIL_CONSTRUCTORS(IHDCPObserver);
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};
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struct IHDCP : public IInterface {
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DECLARE_META_INTERFACE(HDCP);
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// Called to specify the observer that receives asynchronous notifications
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// from the HDCP implementation to signal completion/failure of asynchronous
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// operations (such as initialization) or out of band events.
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virtual status_t setObserver(const sp<IHDCPObserver> &observer) = 0;
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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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// Returns the capability bitmask of this HDCP session.
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// Possible return values (please refer to HDCAPAPI.h):
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// HDCP_CAPS_ENCRYPT: mandatory, meaning the HDCP module can encrypt
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// from an input byte-array buffer to an output byte-array buffer
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// HDCP_CAPS_ENCRYPT_NATIVE: the HDCP module supports encryption from
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// a native buffer to an output byte-array buffer. The format of the
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// input native buffer is specific to vendor's encoder implementation.
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// It is the same format as that used by the encoder when
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// "storeMetaDataInBuffers" extension is enabled on its output port.
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virtual uint32_t getCaps() = 0;
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// ENCRYPTION only:
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// Encrypt data according to the HDCP spec. "size" bytes of data are
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// available at "inData" (virtual address), "size" may not be a multiple
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// of 128 bits (16 bytes). An equal number of encrypted bytes should be
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// written to the buffer at "outData" (virtual address).
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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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// Encrypt data according to the HDCP spec. "size" bytes of data starting
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// at location "offset" are available in "buffer" (buffer handle). "size"
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// may not be a multiple of 128 bits (16 bytes). An equal number of
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// encrypted bytes should be written to the buffer at "outData" (virtual
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// address). This operation is to be synchronous, i.e. this call does not
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// return 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 encryptNative(
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const sp<GraphicBuffer> &graphicBuffer,
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size_t offset, size_t size, uint32_t streamCTR,
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uint64_t *outInputCTR, void *outData) = 0;
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// DECRYPTION only:
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// Decrypt data according to the HDCP spec.
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// "size" bytes of encrypted data are available at "inData"
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// (virtual address), "size" may not be a multiple of 128 bits (16 bytes).
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// An equal number of decrypted bytes should be written to the buffer
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// at "outData" (virtual address).
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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 decrypted data.
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// Both streamCTR and inputCTR will be provided by the caller.
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virtual status_t decrypt(
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const void *inData, size_t size,
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uint32_t streamCTR, uint64_t inputCTR,
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void *outData) = 0;
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private:
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DISALLOW_EVIL_CONSTRUCTORS(IHDCP);
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};
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struct BnHDCPObserver : public BnInterface<IHDCPObserver> {
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virtual status_t onTransact(
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uint32_t code, const Parcel &data, Parcel *reply,
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uint32_t flags = 0);
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};
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struct BnHDCP : public BnInterface<IHDCP> {
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virtual status_t onTransact(
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uint32_t code, const Parcel &data, Parcel *reply,
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uint32_t flags = 0);
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};
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} // namespace android
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