@Override
public void open(FilterContext context, VideoEventFilter myfilter) {
super.open(context, myfilter);
mCopyProgram = new ShaderProgram(context, mOverlayShader);
mCopyProgram.setHostValue("center_r", 0.0f);
mIsGotPreviousFrame = false;
}
@Override
public void close(FilterContext context, VideoEventFilter myfilter) {
super.close(context, myfilter);
if (null != mPreviousFrame) {
mPreviousFrame.release();
mPreviousFrame = null;
}
}
@Override
public boolean process(
FilterContext context, VideoEventFilter myfilter, boolean isRenderOutput, GLFrame output) {
super.process(context, myfilter, isRenderOutput, output);
GLFrame camera = myfilter.getInputCameraGLFrame();
FrameFormat inputFormat;
inputFormat = camera.getFormat();
if (null == mMainFrame) {
MutableFrameFormat outputFormat = inputFormat.mutableCopy();
mMainFrame = (GLFrame) context.getFrameManager().newFrame(outputFormat);
mMainFrame.focus();
mCopyProgramWithColor.process(camera, mMainFrame);
}
if (null == mPreviousFrame) {
MutableFrameFormat outputFormat = inputFormat.mutableCopy();
mPreviousFrame = (GLFrame) context.getFrameManager().newFrame(outputFormat);
mPreviousFrame.focus();
}
Frame[] subtractInputs = {camera, mPreviousFrame};
long currentTimeStamp = myfilter.getNowTimeStamp();
long cameraPhoto;
if (this.containsKey("camera_photo")) {
try {
cameraPhoto = ((Long) this.get("camera_photo")).longValue() + mStart;
} catch (ClassCastException e) {
e.printStackTrace();
return false;
}
// get fix frame
if (currentTimeStamp >= cameraPhoto) {
if (false == mGotMainFrame) {
mMainFrame.focus();
mColor[3] = 1.0f;
mCopyProgramWithColor.setHostValue("ccc", mColor);
mCopyProgramWithColor.process(camera, mMainFrame);
mGotMainFrame = true;
mTool.log('d', "Got CameraInput:" + currentTimeStamp);
}
subtractInputs[0] = mMainFrame;
}
if (false == mIsGotPreviousFrame
|| true == mIsGotPreviousFrame && currentTimeStamp < mEffectStart) {
mPreviousFrame.focus();
if (isRenderOutput) {
mCopyProgramWithColor.process(output, mPreviousFrame);
} else {
mCopyProgramWithColor.process(camera, mPreviousFrame);
}
mIsGotPreviousFrame = true;
mTool.log('d', "Got PreviousInput:" + currentTimeStamp);
}
// finished, no need to do
if (currentTimeStamp >= mEffectEnd || currentTimeStamp < mEffectStart) {
return false;
}
float center_r = 0.0f;
if (cameraPhoto >= currentTimeStamp) {
center_r =
1.0f - (float) (currentTimeStamp - mEffectStart) / (float) (cameraPhoto - mEffectStart);
subtractInputs[0] = mPreviousFrame;
} else {
center_r = (float) (currentTimeStamp - cameraPhoto) / (float) (mEffectEnd - cameraPhoto);
subtractInputs[0] = mMainFrame;
}
mCopyProgram.setHostValue("center_r", center_r);
if (null != output && isRenderOutput == false) {
mCopyProgram.process(subtractInputs, output);
}
return true;
}
return false;
}
