1 /* 2 * Copyright 2023 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 android.companion.virtualcamera; 18 19 import android.companion.virtualcamera.Format; 20 import android.view.Surface; 21 22 /** 23 * AIDL Interface to receive callbacks from virtual camera instance. 24 * @hide 25 */ 26 oneway interface IVirtualCameraCallback { 27 28 /** 29 * Called when there's new video stream. This callback is send after clients opens and 30 * configures camera. Implementation should hold onto the surface until corresponding 31 * terminateStream call is received. 32 * 33 * @param streamId - id of the video stream. 34 * @param surface - Surface representing the virtual camera sensor. 35 * @param width - width of the surface. 36 * @param height - height of the surface. 37 * @param pixelFormat - pixel format of the surface. 38 */ onStreamConfigured(int streamId, in Surface surface, int width, int height, in Format pixelFormat)39 void onStreamConfigured(int streamId, in Surface surface, int width, int height, 40 in Format pixelFormat); 41 42 /** 43 * Called when framework requests capture. This can be used by the client as a hint 44 * to render another frame into input surface. 45 * 46 * @param streamId - id of the stream corresponding to the Surface for which next 47 * frame is requested. 48 * @param frameId - id of the requested frame. 49 */ onProcessCaptureRequest(int streamId, int frameId)50 void onProcessCaptureRequest(int streamId, int frameId); 51 52 /** 53 * Called when the corresponding stream is no longer in use. Implementation should dispose of 54 * corresponding Surface upon receiving this call and no longer interact with it. 55 * 56 * @param streamId - id of the video stream to terminate. 57 */ onStreamClosed(int streamId)58 void onStreamClosed(int streamId); 59 } 60