1 /* 2 * Copyright (C) 2013 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 #ifndef ANDROID_SERVERS_CAMERA3_OUTPUT_STREAM_INTERFACE_H 18 #define ANDROID_SERVERS_CAMERA3_OUTPUT_STREAM_INTERFACE_H 19 20 #include "Camera3StreamInterface.h" 21 #include <utils/KeyedVector.h> 22 23 namespace android { 24 25 namespace camera3 { 26 27 /** 28 * An interface for managing a single stream of output data from the camera 29 * device. 30 */ 31 class Camera3OutputStreamInterface : public virtual Camera3StreamInterface { 32 public: 33 /** 34 * Set the transform on the output stream; one of the 35 * HAL_TRANSFORM_* / NATIVE_WINDOW_TRANSFORM_* constants. 36 */ 37 virtual status_t setTransform(int transform) = 0; 38 39 /** 40 * Return if this output stream is for video encoding. 41 */ 42 virtual bool isVideoStream() const = 0; 43 44 /** 45 * Return if the consumer configuration of this stream is deferred. 46 */ 47 virtual bool isConsumerConfigurationDeferred(size_t surface_id = 0) const = 0; 48 49 /** 50 * Set the consumer surfaces to the output stream. 51 */ 52 virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers) = 0; 53 54 /** 55 * Detach an unused buffer from the stream. 56 * 57 * buffer must be non-null; fenceFd may null, and if it is non-null, but 58 * there is no valid fence associated with the detached buffer, it will be 59 * set to -1. 60 * 61 */ 62 virtual status_t detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd) = 0; 63 64 /** 65 * Query the surface id. 66 */ 67 virtual ssize_t getSurfaceId(const sp<Surface> &surface) = 0; 68 69 /** 70 * Update the stream output surfaces. 71 */ 72 virtual status_t updateStream(const std::vector<sp<Surface>> &outputSurfaces, 73 const std::vector<OutputStreamInfo> &outputInfo, 74 const std::vector<size_t> &removedSurfaceIds, 75 KeyedVector<sp<Surface>, size_t> *outputMap/*out*/) = 0; 76 77 /** 78 * Drop buffers if dropping is true. If dropping is false, do not drop buffers. 79 */ 80 virtual status_t dropBuffers(bool /*dropping*/) = 0; 81 82 /** 83 * Query the physical camera id for the output stream. 84 */ 85 virtual const String8& getPhysicalCameraId() const = 0; 86 }; 87 88 } // namespace camera3 89 90 } // namespace android 91 92 #endif 93