Java Code Examples for android.graphics.SurfaceTexture.getTimestamp()

The following are Jave code examples for showing how to use getTimestamp() of the android.graphics.SurfaceTexture class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
Example 1
Project: grafika   File: TextureMovieEncoder.java   Source Code and License Vote up 6 votes
/**
 * Tells the video recorder that a new frame is available.  (Call from non-encoder thread.)
 * <p>
 * This function sends a message and returns immediately.  This isn't sufficient -- we
 * don't want the caller to latch a new frame until we're done with this one -- but we
 * can get away with it so long as the input frame rate is reasonable and the encoder
 * thread doesn't stall.
 * <p>
 * TODO: either block here until the texture has been rendered onto the encoder surface,
 * or have a separate "block if still busy" method that the caller can execute immediately
 * before it calls updateTexImage().  The latter is preferred because we don't want to
 * stall the caller while this thread does work.
 */
public void frameAvailable(SurfaceTexture st) {
    synchronized (mReadyFence) {
        if (!mReady) {
            return;
        }
    }

    float[] transform = new float[16];      // TODO - avoid alloc every frame
    st.getTransformMatrix(transform);
    long timestamp = st.getTimestamp();
    if (timestamp == 0) {
        // Seeing this after device is toggled off/on with power button.  The
        // first frame back has a zero timestamp.
        //
        // MPEG4Writer thinks this is cause to abort() in native code, so it's very
        // important that we just ignore the frame.
        Log.w(TAG, "HEY: got SurfaceTexture with timestamp of zero");
        return;
    }

    mHandler.sendMessage(mHandler.obtainMessage(MSG_FRAME_AVAILABLE,
            (int) (timestamp >> 32), (int) timestamp, transform));
}
 
Example 2
Project: AAVT   File: VideoSurfaceProcessor.java   Source Code and License Vote up 4 votes
private void glRun(){
    EglHelper egl=new EglHelper();
    boolean ret=egl.createGLESWithSurface(new EGLConfigAttrs(),new EGLContextAttrs(),new SurfaceTexture(1));
    if(!ret){
        //todo 错误处理
        return;
    }
    int mInputSurfaceTextureId = GpuUtils.createTextureID(true);
    SurfaceTexture mInputSurfaceTexture = new SurfaceTexture(mInputSurfaceTextureId);

    Point size=mProvider.open(mInputSurfaceTexture);
    AvLog.d(TAG,"Provider Opened . data size (x,y)="+size.x+"/"+size.y);
    if(size.x<=0||size.y<=0){
        //todo 错误处理
        destroyGL(egl);
        synchronized (LOCK){
            LOCK.notifyAll();
        }
        return;
    }
    int mSourceWidth = size.x;
    int mSourceHeight = size.y;
    synchronized (LOCK){
        LOCK.notifyAll();
    }
    //要求数据源提供者必须同步返回数据大小
    if(mSourceWidth <=0|| mSourceHeight <=0){
        error(1,"video source return inaccurate size to SurfaceTextureActuator");
        return;
    }

    if(mRenderer==null){
        mRenderer=new WrapRenderer(null);
    }
    FrameBuffer sourceFrame=new FrameBuffer();
    mRenderer.create();
    mRenderer.sizeChanged(mSourceWidth, mSourceHeight);
    mRenderer.setFlag(mProvider.isLandscape()?WrapRenderer.TYPE_CAMERA:WrapRenderer.TYPE_MOVE);

    //用于其他的回调
    RenderBean rb=new RenderBean();
    rb.egl=egl;
    rb.sourceWidth= mSourceWidth;
    rb.sourceHeight= mSourceHeight;
    rb.endFlag=false;
    rb.threadId=Thread.currentThread().getId();
    AvLog.d(TAG,"Processor While Loop Entry");
    //要求数据源必须同步填充SurfaceTexture,填充完成前等待
    while (!mProvider.frame()&&mGLThreadFlag){
        mInputSurfaceTexture.updateTexImage();
        mInputSurfaceTexture.getTransformMatrix(mRenderer.getTextureMatrix());
        AvLog.d(TAG,"timestamp:"+ mInputSurfaceTexture.getTimestamp());
        sourceFrame.bindFrameBuffer(mSourceWidth, mSourceHeight);
        GLES20.glViewport(0,0, mSourceWidth, mSourceHeight);
        mRenderer.draw(mInputSurfaceTextureId);
        sourceFrame.unBindFrameBuffer();
        rb.textureId=sourceFrame.getCacheTextureId();
        //接收数据源传入的时间戳
        rb.timeStamp=mProvider.getTimeStamp();
        rb.textureTime= mInputSurfaceTexture.getTimestamp();
        observable.notify(rb);
    }
    AvLog.d(TAG,"out of gl thread loop");
    synchronized (LOCK){
        rb.endFlag=true;
        observable.notify(rb);
        mRenderer.destroy();
        destroyGL(egl);
        LOCK.notifyAll();
        AvLog.d(TAG,"gl thread exit");
    }
}