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Commit 4e5af24f authored by Ray Essick's avatar Ray Essick
Browse files

Validate ndkmediacodec callback pointers before use 

Verify that the async callback function pointers are non-null before use.
Rework callback setting to allow retrigger after a release/configure cycle.

Bug: 205335443
Bug: 152553625
Bug: 203147387
Test: atest android.mediav2.cts.CodecUnitTest
Change-Id: I536575f280c714b6a702af3b48a410f6d9a7a924
parent 2a6af36c

media/ndk/Android.bp

+2 −7
Original line number Diff line number Diff line
@@ -177,10 +177,6 @@ cc_library { 
        "NdkMediaDataSourceCallbacks.cpp",

    ],



    include_dirs: [

        "frameworks/av/media/libstagefright/include",

        "frameworks/av/media/ndk/include",

    ],



    export_include_dirs: [

        "include",
@@ -193,6 +189,7 @@ cc_library { 
    ],



    header_libs: [

        "libstagefright_headers",

        "libmedia_headers",

    ],
@@ -223,6 +220,7 @@ cc_test { 
        "libcutils",

        "android.hardware.graphics.bufferqueue@1.0",

    ],



    header_libs: [

        "libstagefright_foundation_headers",

    ],
@@ -230,9 +228,6 @@ cc_test { 
    cflags: [

        "-D__ANDROID_VNDK__",

    ],

    include_dirs: [

        "frameworks/av/media/ndk/",

    ],

}



cc_library_static {

media/ndk/NdkMediaCodec.cpp

+15 −15
Original line number Diff line number Diff line
@@ -158,8 +158,7 @@ void CodecHandler::onMessageReceived(const sp<AMessage> &msg) { 
                     }



                     Mutex::Autolock _l(mCodec->mAsyncCallbackLock);

                     if (mCodec->mAsyncCallbackUserData != NULL

                         || mCodec->mAsyncCallback.onAsyncInputAvailable != NULL) {

                     if (mCodec->mAsyncCallback.onAsyncInputAvailable != NULL) {

                         mCodec->mAsyncCallback.onAsyncInputAvailable(

                                 mCodec,

                                 mCodec->mAsyncCallbackUserData,
@@ -205,8 +204,7 @@ void CodecHandler::onMessageReceived(const sp<AMessage> &msg) { 
                         (uint32_t)flags};



                     Mutex::Autolock _l(mCodec->mAsyncCallbackLock);

                     if (mCodec->mAsyncCallbackUserData != NULL

                         || mCodec->mAsyncCallback.onAsyncOutputAvailable != NULL) {

                     if (mCodec->mAsyncCallback.onAsyncOutputAvailable != NULL) {

                         mCodec->mAsyncCallback.onAsyncOutputAvailable(

                                 mCodec,

                                 mCodec->mAsyncCallbackUserData,
@@ -234,8 +232,7 @@ void CodecHandler::onMessageReceived(const sp<AMessage> &msg) { 
                     AMediaFormat *aMediaFormat = AMediaFormat_fromMsg(&copy);



                     Mutex::Autolock _l(mCodec->mAsyncCallbackLock);

                     if (mCodec->mAsyncCallbackUserData != NULL

                         || mCodec->mAsyncCallback.onAsyncFormatChanged != NULL) {

                     if (mCodec->mAsyncCallback.onAsyncFormatChanged != NULL) {

                         mCodec->mAsyncCallback.onAsyncFormatChanged(

                                 mCodec,

                                 mCodec->mAsyncCallbackUserData,
@@ -263,8 +260,7 @@ void CodecHandler::onMessageReceived(const sp<AMessage> &msg) { 
                           err, actionCode, detail.c_str());



                     Mutex::Autolock _l(mCodec->mAsyncCallbackLock);

                     if (mCodec->mAsyncCallbackUserData != NULL

                         || mCodec->mAsyncCallback.onAsyncError != NULL) {

                     if (mCodec->mAsyncCallback.onAsyncError != NULL) {

                         mCodec->mAsyncCallback.onAsyncError(

                                 mCodec,

                                 mCodec->mAsyncCallbackUserData,
@@ -474,16 +470,20 @@ media_status_t AMediaCodec_setAsyncNotifyCallback( 
        AMediaCodec *mData,

        AMediaCodecOnAsyncNotifyCallback callback,

        void *userdata) {

    if (mData->mAsyncNotify == NULL && userdata != NULL) {



    Mutex::Autolock _l(mData->mAsyncCallbackLock);



    if (mData->mAsyncNotify == NULL) {

        mData->mAsyncNotify = new AMessage(kWhatAsyncNotify, mData->mHandler);

    }



    // always call, codec may have been reset/re-configured since last call.

    status_t err = mData->mCodec->setCallback(mData->mAsyncNotify);

    if (err != OK) {

        ALOGE("setAsyncNotifyCallback: err(%d), failed to set async callback", err);

        return translate_error(err);

    }

    }



    Mutex::Autolock _l(mData->mAsyncCallbackLock);

    mData->mAsyncCallback = callback;

    mData->mAsyncCallbackUserData = userdata;