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Commit ec3acca4 authored by Chong Zhang's avatar Chong Zhang
Browse files

wifi-display: do not use HDCP's encryptNative method if its unsupported 

Bug: 10609422
Change-Id: I005f1d04a4191b1503b5f3e895a98b8d6560c402
parent 4585e8f0

include/media/IHDCP.h

+11 −0
Original line number Diff line number Diff line
@@ -46,6 +46,17 @@ struct IHDCP : public IInterface { 
    // Request to shutdown the active HDCP session.

    virtual status_t shutdownAsync() = 0;



    // Returns the capability bitmask of this HDCP session.

    // Possible return values (please refer to HDCAPAPI.h):

    //   HDCP_CAPS_ENCRYPT: mandatory, meaning the HDCP module can encrypt

    //   from an input byte-array buffer to an output byte-array buffer

    //   HDCP_CAPS_ENCRYPT_NATIVE: the HDCP module supports encryption from

    //   a native buffer to an output byte-array buffer. The format of the

    //   input native buffer is specific to vendor's encoder implementation.

    //   It is the same format as that used by the encoder when

    //   "storeMetaDataInBuffers" extension is enabled on its output port.

    virtual uint32_t getCaps() = 0;



    // ENCRYPTION only:

    // Encrypt data according to the HDCP spec. "size" bytes of data are

    // available at "inData" (virtual address), "size" may not be a multiple

media/libmedia/IHDCP.cpp

+16 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ enum { 
    HDCP_SET_OBSERVER,

    HDCP_INIT_ASYNC,

    HDCP_SHUTDOWN_ASYNC,

    HDCP_GET_CAPS,

    HDCP_ENCRYPT,

    HDCP_ENCRYPT_NATIVE,

    HDCP_DECRYPT,
@@ -85,6 +86,13 @@ struct BpHDCP : public BpInterface<IHDCP> { 
        return reply.readInt32();

    }



    virtual uint32_t getCaps() {

        Parcel data, reply;

        data.writeInterfaceToken(IHDCP::getInterfaceDescriptor());

        remote()->transact(HDCP_GET_CAPS, data, &reply);

        return reply.readInt32();

    }



    virtual status_t encrypt(

            const void *inData, size_t size, uint32_t streamCTR,

            uint64_t *outInputCTR, void *outData) {
@@ -222,6 +230,14 @@ status_t BnHDCP::onTransact( 
            return OK;

        }



        case HDCP_GET_CAPS:

        {

            CHECK_INTERFACE(IHDCP, data, reply);



            reply->writeInt32(getCaps());

            return OK;

        }



        case HDCP_ENCRYPT:

        {

            size_t size = data.readInt32();

media/libmediaplayerservice/HDCP.cpp

+14 −0
Original line number Diff line number Diff line
@@ -100,6 +100,20 @@ status_t HDCP::shutdownAsync() { 
    return mHDCPModule->shutdownAsync();

}



uint32_t HDCP::getCaps() {

    Mutex::Autolock autoLock(mLock);



    if (mHDCPModule == NULL) {

        return NO_INIT;

    }



    // TO-DO:

    // Only support HDCP_CAPS_ENCRYPT (byte-array to byte-array) for now.

    // use mHDCPModule->getCaps() when the HDCP libraries get updated.

    //return mHDCPModule->getCaps();

    return HDCPModule::HDCP_CAPS_ENCRYPT;

}



status_t HDCP::encrypt(

        const void *inData, size_t size, uint32_t streamCTR,

        uint64_t *outInputCTR, void *outData) {

media/libmediaplayerservice/HDCP.h

+1 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ struct HDCP : public BnHDCP { 
    virtual status_t setObserver(const sp<IHDCPObserver> &observer);

    virtual status_t initAsync(const char *host, unsigned port);

    virtual status_t shutdownAsync();

    virtual uint32_t getCaps();



    virtual status_t encrypt(

            const void *inData, size_t size, uint32_t streamCTR,

media/libstagefright/wifi-display/source/PlaybackSession.cpp

+2 −1
Original line number Diff line number Diff line
@@ -939,7 +939,8 @@ status_t WifiDisplaySource::PlaybackSession::addSource( 
    if (isVideo) {

        format->setString("mime", MEDIA_MIMETYPE_VIDEO_AVC);

        format->setInt32("store-metadata-in-buffers", true);

        format->setInt32("store-metadata-in-buffers-output", (mHDCP != NULL));

        format->setInt32("store-metadata-in-buffers-output", (mHDCP != NULL)

                && (mHDCP->getCaps() & HDCPModule::HDCP_CAPS_ENCRYPT_NATIVE));

        format->setInt32(

                "color-format", OMX_COLOR_FormatAndroidOpaque);

        format->setInt32("profile-idc", profileIdc);