am 7ef2fa57: VideoEditor:Fix for Clear Surface API Bug of not able to create empty project

    return M4NO_ERROR;

}

M4OSA_ERR VideoEditorPreviewController::clearSurface(

    const sp<Surface> &surface, VideoEditor_renderPreviewFrameStr* pFrameInfo) {

    M4OSA_ERR err = M4NO_ERROR;

    VideoEditor_renderPreviewFrameStr* pFrameStr = pFrameInfo;

    M4OSA_UInt32 outputBufferWidth =0, outputBufferHeight=0;

    M4VIFI_ImagePlane planeOut[3];

    LOGV("Inside preview clear frame");

    Mutex::Autolock autoLock(mLock);

    // Get the Isurface to be passed to renderer

    mISurface = surface->getISurface();

    // Delete previous renderer instance

    if(mTarget != NULL) {

        delete mTarget;

        mTarget = NULL;

    }

    if(mOutputVideoWidth == 0) {

        mOutputVideoWidth = pFrameStr->uiFrameWidth;

    }

    if(mOutputVideoHeight == 0) {

        mOutputVideoHeight = pFrameStr->uiFrameHeight;

    }

    // Initialize the renderer

    if(mTarget == NULL) {

        mTarget = new PreviewRenderer(

            OMX_COLOR_FormatYUV420Planar, surface, mOutputVideoWidth, mOutputVideoHeight,

            mOutputVideoWidth, mOutputVideoHeight, 0);

        if(mTarget == NULL) {

            LOGE("renderPreviewFrame: cannot create PreviewRenderer");

            return M4ERR_ALLOC;

        }

    }

    // Out plane

    uint8_t* outBuffer;

    size_t outBufferStride = 0;

    LOGV("doMediaRendering CALL getBuffer()");

    mTarget->getBufferYV12(&outBuffer, &outBufferStride);

    // Set the output YUV420 plane to be compatible with YV12 format

    //In YV12 format, sizes must be even

    M4OSA_UInt32 yv12PlaneWidth = ((mOutputVideoWidth +1)>>1)<<1;

    M4OSA_UInt32 yv12PlaneHeight = ((mOutputVideoHeight+1)>>1)<<1;

    prepareYV12ImagePlane(planeOut, yv12PlaneWidth, yv12PlaneHeight,

     (M4OSA_UInt32)outBufferStride, (M4VIFI_UInt8 *)outBuffer);

    /* Fill the surface with black frame */

    M4OSA_memset((M4OSA_MemAddr8)planeOut[0].pac_data,planeOut[0].u_width *

                            planeOut[0].u_height * 1.5,0x00);

    M4OSA_memset((M4OSA_MemAddr8)planeOut[1].pac_data,planeOut[1].u_width *

                            planeOut[1].u_height,128);

    M4OSA_memset((M4OSA_MemAddr8)planeOut[2].pac_data,planeOut[2].u_width *

                             planeOut[2].u_height,128);

    mTarget->renderYV12();

    return err;

}

M4OSA_ERR VideoEditorPreviewController::renderPreviewFrame(

    const sp<Surface> &surface, VideoEditor_renderPreviewFrameStr* pFrameInfo) {

    M4OSA_ERR renderPreviewFrame(const sp<Surface> &surface,

     VideoEditor_renderPreviewFrameStr* pFrameInfo);

    M4OSA_ERR clearSurface(const sp<Surface> &surface,

     VideoEditor_renderPreviewFrameStr* pFrameInfo);

    M4OSA_Void setJniCallback(void* cookie,

     jni_progress_callback_fct callbackFct);