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Commit b04bff0e authored by Andy Hung's avatar Andy Hung Committed by android-build-merger
Browse files

Merge "Visualizer: fix native crash when visualizer release" 

am: f9b76f7b

Change-Id: Ife08e621826461b3cfe6d6df0445849ed4395d6b
parents 739dc12e f9b76f7b

media/libmedia/Visualizer.cpp

+20 −3
Original line number Diff line number Diff line
@@ -56,6 +56,19 @@ Visualizer::~Visualizer() 
    setCaptureCallBack(NULL, NULL, 0, 0);

}



void Visualizer::release()

{

    ALOGV("Visualizer::release()");

    setEnabled(false);

    Mutex::Autolock _l(mCaptureLock);



    mCaptureThread.clear();

    mCaptureCallBack = NULL;

    mCaptureCbkUser = NULL;

    mCaptureFlags = 0;

    mCaptureRate = 0;

}



status_t Visualizer::setEnabled(bool enabled)

{

    Mutex::Autolock _l(mCaptureLock);
@@ -115,7 +128,7 @@ status_t Visualizer::setCaptureCallBack(capture_cbk_t cbk, void* user, uint32_t 
    mCaptureRate = rate;



    if (cbk != NULL) {

        mCaptureThread = new CaptureThread(*this, rate, ((flags & CAPTURE_CALL_JAVA) != 0));

        mCaptureThread = new CaptureThread(this, rate, ((flags & CAPTURE_CALL_JAVA) != 0));

    }

    ALOGV("setCaptureCallBack() rate: %d thread %p flags 0x%08x",

            rate, mCaptureThread.get(), mCaptureFlags);
@@ -402,7 +415,7 @@ void Visualizer::controlStatusChanged(bool controlGranted) { 


//-------------------------------------------------------------------------



Visualizer::CaptureThread::CaptureThread(Visualizer& receiver, uint32_t captureRate,

Visualizer::CaptureThread::CaptureThread(Visualizer* receiver, uint32_t captureRate,

        bool bCanCallJava)

    : Thread(bCanCallJava), mReceiver(receiver)

{
@@ -413,10 +426,14 @@ Visualizer::CaptureThread::CaptureThread(Visualizer& receiver, uint32_t captureR 
bool Visualizer::CaptureThread::threadLoop()

{

    ALOGV("CaptureThread %p enter", this);

    sp<Visualizer> receiver = mReceiver.promote();

    if (receiver == NULL) {

        return false;

    }

    while (!exitPending())

    {

        usleep(mSleepTimeUs);

        mReceiver.periodicCapture();

        receiver->periodicCapture();

    }

    ALOGV("CaptureThread %p exiting", this);

    return false;

media/libmedia/include/media/Visualizer.h

+3 −2
Original line number Diff line number Diff line
@@ -131,6 +131,7 @@ public: 
    // getCaptureSize() but the length of the FFT is half of the size (both parts of the spectrum

    // are returned

    status_t getFft(uint8_t *fft);

    void release();



protected:

    // from IEffectClient
@@ -146,12 +147,12 @@ private: 
    class CaptureThread : public Thread

    {

    public:

        CaptureThread(Visualizer& receiver, uint32_t captureRate, bool bCanCallJava = false);

        CaptureThread(Visualizer* visualizer, uint32_t captureRate, bool bCanCallJava = false);



    private:

        friend class Visualizer;

        virtual bool        threadLoop();

        Visualizer& mReceiver;

        wp<Visualizer> mReceiver;

        Mutex       mLock;

        uint32_t mSleepTimeUs;

    };