Examples with OutputPort androidx.media.filterfw.OutputPort used on opensource projects

Example 66 with OutputPort

use of androidx.media.filterfw.OutputPort in project android_frameworks_base by DirtyUnicorns.

the class ToStringFilter method onProcess.

@Override
protected void onProcess() {
    FrameValue objectFrame = getConnectedInputPort("object").pullFrame().asFrameValue();
    String outStr = objectFrame.getValue().toString();
    OutputPort outPort = getConnectedOutputPort("string");
    FrameValue stringFrame = outPort.fetchAvailableFrame(null).asFrameValue();
    stringFrame.setValue(outStr);
    outPort.pushFrame(stringFrame);
}

Example 67 with OutputPort

use of androidx.media.filterfw.OutputPort in project android_frameworks_base by DirtyUnicorns.

the class BrightnessFilter method onProcess.

@Override
protected void onProcess() {
    OutputPort outPort = getConnectedOutputPort("image");
    FrameImage2D inputImage = getConnectedInputPort("image").pullFrame().asFrameImage2D();
    int[] dim = inputImage.getDimensions();
    FrameImage2D outputImage = outPort.fetchAvailableFrame(dim).asFrameImage2D();
    mShader.setUniformValue("brightness", mBrightness);
    mShader.process(inputImage, outputImage);
    outPort.pushFrame(outputImage);
}

Example 68 with OutputPort

use of androidx.media.filterfw.OutputPort in project android_frameworks_base by DirtyUnicorns.

the class ColorfulnessFilter method onProcess.

@Override
protected void onProcess() {
    FrameBuffer2D histogramFrame = getConnectedInputPort("histogram").pullFrame().asFrameBuffer2D();
    ByteBuffer byteBuffer = histogramFrame.lockBytes(Frame.MODE_READ);
    byteBuffer.order(ByteOrder.nativeOrder());
    FloatBuffer histogramBuffer = byteBuffer.asFloatBuffer();
    histogramBuffer.rewind();
    // Create a hue histogram from hue-saturation histogram
    int hueBins = histogramFrame.getWidth();
    int saturationBins = histogramFrame.getHeight() - 1;
    float[] hueHistogram = new float[hueBins];
    float total = 0;
    for (int r = 0; r < saturationBins; ++r) {
        float weight = (float) Math.pow(2, r);
        for (int c = 0; c < hueBins; c++) {
            float value = histogramBuffer.get() * weight;
            hueHistogram[c] += value;
            total += value;
        }
    }
    float colorful = 0f;
    for (int c = 0; c < hueBins; ++c) {
        float value = hueHistogram[c] / total;
        if (value > 0f) {
            colorful -= value * ((float) Math.log(value));
        }
    }
    colorful /= Math.log(2);
    histogramFrame.unlock();
    OutputPort outPort = getConnectedOutputPort("score");
    FrameValue frameValue = outPort.fetchAvailableFrame(null).asFrameValue();
    frameValue.setValue(colorful);
    outPort.pushFrame(frameValue);
}

Example 69 with OutputPort

use of androidx.media.filterfw.OutputPort in project android_frameworks_base by DirtyUnicorns.

the class CropFilter method onProcess.

@Override
protected void onProcess() {
    OutputPort outPort = getConnectedOutputPort("image");
    // Pull input frame
    FrameImage2D inputImage = getConnectedInputPort("image").pullFrame().asFrameImage2D();
    int[] inDims = inputImage.getDimensions();
    int[] croppedDims = { (int) Math.ceil(mCropRect.xEdge().length() * inDims[0]), (int) Math.ceil(mCropRect.yEdge().length() * inDims[1]) };
    int[] outDims = { getOutputWidth(croppedDims[0], croppedDims[1]), getOutputHeight(croppedDims[0], croppedDims[1]) };
    FrameImage2D outputImage = outPort.fetchAvailableFrame(outDims).asFrameImage2D();
    if (isOpenGLSupported()) {
        FrameImage2D sourceFrame;
        Quad sourceQuad = null;
        boolean scaleDown = (outDims[0] < croppedDims[0]) || (outDims[1] < croppedDims[1]);
        if (scaleDown && mUseMipmaps) {
            mPow2Frame = TransformUtils.makeMipMappedFrame(mPow2Frame, croppedDims);
            int[] extDims = mPow2Frame.getDimensions();
            float targetWidth = croppedDims[0] / (float) extDims[0];
            float targetHeight = croppedDims[1] / (float) extDims[1];
            Quad targetQuad = Quad.fromRect(0f, 0f, targetWidth, targetHeight);
            mShader.setSourceQuad(mCropRect);
            mShader.setTargetQuad(targetQuad);
            mShader.process(inputImage, mPow2Frame);
            TransformUtils.generateMipMaps(mPow2Frame);
            sourceFrame = mPow2Frame;
            sourceQuad = targetQuad;
        } else {
            sourceFrame = inputImage;
            sourceQuad = mCropRect;
        }
        mShader.setSourceQuad(sourceQuad);
        mShader.setTargetRect(0f, 0f, 1f, 1f);
        mShader.process(sourceFrame, outputImage);
    } else {
        // Convert quads to canvas coordinate space
        Quad sourceQuad = mCropRect.scale2(inDims[0], inDims[1]);
        Quad targetQuad = Quad.fromRect(0f, 0f, inDims[0], inDims[1]);
        // Calculate transform for crop
        Matrix transform = Quad.getTransform(sourceQuad, targetQuad);
        transform.postScale(outDims[0] / (float) inDims[0], outDims[1] / (float) inDims[1]);
        // Create target canvas
        Bitmap.Config config = Bitmap.Config.ARGB_8888;
        Bitmap cropped = Bitmap.createBitmap(outDims[0], outDims[1], config);
        Canvas canvas = new Canvas(cropped);
        // Draw source bitmap into target canvas
        Paint paint = new Paint();
        paint.setFilterBitmap(true);
        Bitmap sourceBitmap = inputImage.toBitmap();
        canvas.drawBitmap(sourceBitmap, transform, paint);
        // Assign bitmap to output frame
        outputImage.setBitmap(cropped);
    }
    outPort.pushFrame(outputImage);
}

Example 70 with OutputPort

use of androidx.media.filterfw.OutputPort in project android_frameworks_base by DirtyUnicorns.

the class NewChromaHistogramFilter method onProcess.

@Override
protected void onProcess() {
    FrameBuffer2D imageFrame = getConnectedInputPort("image").pullFrame().asFrameImage2D();
    OutputPort outPort = getConnectedOutputPort("histogram");
    mValueBins = mHueBins;
    int[] outDims = new int[] { mHueBins, mSaturationBins + 1 };
    FrameBuffer2D histogramFrame = outPort.fetchAvailableFrame(outDims).asFrameBuffer2D();
    ByteBuffer imageBuffer = imageFrame.lockBytes(Frame.MODE_READ);
    ByteBuffer histogramBuffer = histogramFrame.lockBytes(Frame.MODE_READ);
    histogramBuffer.order(ByteOrder.nativeOrder());
    FloatBuffer floatHistogram = histogramBuffer.asFloatBuffer();
    // Run native method
    extractChromaHistogram(imageBuffer, floatHistogram, mHueBins, mSaturationBins, mValueBins, mSaturationThreshold, mValueThreshold);
    imageFrame.unlock();
    histogramFrame.unlock();
    outPort.pushFrame(histogramFrame);
}