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_H 18 #define ANDROID_SERVERS_CAMERA3_OUTPUT_STREAM_H 19 20 #include <utils/RefBase.h> 21 #include <gui/Surface.h> 22 23 #include "Camera3Stream.h" 24 #include "Camera3IOStreamBase.h" 25 #include "Camera3OutputStreamInterface.h" 26 27 namespace android { 28 29 namespace camera3 { 30 31 /** 32 * A class for managing a single stream of output data from the camera device. 33 */ 34 class Camera3OutputStream : 35 public Camera3IOStreamBase, 36 public Camera3OutputStreamInterface { 37 public: 38 /** 39 * Set up a stream for formats that have 2 dimensions, such as RAW and YUV. 40 */ 41 Camera3OutputStream(int id, sp<ANativeWindow> consumer, 42 uint32_t width, uint32_t height, int format); 43 44 /** 45 * Set up a stream for formats that have a variable buffer size for the same 46 * dimensions, such as compressed JPEG. 47 */ 48 Camera3OutputStream(int id, sp<ANativeWindow> consumer, 49 uint32_t width, uint32_t height, size_t maxSize, int format); 50 51 virtual ~Camera3OutputStream(); 52 53 /** 54 * Camera3Stream interface 55 */ 56 57 virtual void dump(int fd, const Vector<String16> &args) const; 58 59 /** 60 * Set the transform on the output stream; one of the 61 * HAL_TRANSFORM_* / NATIVE_WINDOW_TRANSFORM_* constants. 62 */ 63 status_t setTransform(int transform); 64 65 protected: 66 Camera3OutputStream(int id, camera3_stream_type_t type, 67 uint32_t width, uint32_t height, int format); 68 69 /** 70 * Note that we release the lock briefly in this function 71 */ 72 virtual status_t returnBufferCheckedLocked( 73 const camera3_stream_buffer &buffer, 74 nsecs_t timestamp, 75 bool output, 76 /*out*/ 77 sp<Fence> *releaseFenceOut); 78 79 sp<ANativeWindow> mConsumer; 80 private: 81 int mTransform; 82 83 virtual status_t setTransformLocked(int transform); 84 85 /** 86 * Internal Camera3Stream interface 87 */ 88 virtual status_t getBufferLocked(camera3_stream_buffer *buffer); 89 virtual status_t returnBufferLocked( 90 const camera3_stream_buffer &buffer, 91 nsecs_t timestamp); 92 93 virtual status_t configureQueueLocked(); 94 virtual status_t disconnectLocked(); 95 96 virtual status_t getEndpointUsage(uint32_t *usage); 97 98 }; // class Camera3OutputStream 99 100 } // namespace camera3 101 102 } // namespace android 103 104 #endif 105
