1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package androidx.media.filterpacks.transform; 18 19 import androidx.media.filterfw.*; 20 21 // TODO: In the future this could be done with a meta-filter that simply "hard-codes" the crop 22 // parameters. 23 public class ResizeFilter extends CropFilter { 24 25 public ResizeFilter(MffContext context, String name) { 26 super(context, name); 27 } 28 29 @Override 30 public Signature getSignature() { 31 FrameType imageIn = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.READ_GPU); 32 FrameType imageOut = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.WRITE_GPU); 33 return new Signature() 34 .addInputPort("image", Signature.PORT_REQUIRED, imageIn) 35 .addInputPort("outputWidth", Signature.PORT_OPTIONAL, FrameType.single(int.class)) 36 .addInputPort("outputHeight", Signature.PORT_OPTIONAL, FrameType.single(int.class)) 37 .addInputPort("useMipmaps", Signature.PORT_OPTIONAL, FrameType.single(boolean.class)) 38 .addOutputPort("image", Signature.PORT_REQUIRED, imageOut) 39 .disallowOtherPorts(); 40 } 41 } 42