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<Surface> consumer, 42 uint32_t width, uint32_t height, int format, 43 android_dataspace dataSpace, camera3_stream_rotation_t rotation); 44 45 /** 46 * Set up a stream for formats that have a variable buffer size for the same 47 * dimensions, such as compressed JPEG. 48 */ 49 Camera3OutputStream(int id, sp<Surface> consumer, 50 uint32_t width, uint32_t height, size_t maxSize, int format, 51 android_dataspace dataSpace, camera3_stream_rotation_t rotation); 52 53 virtual ~Camera3OutputStream(); 54 55 /** 56 * Camera3Stream interface 57 */ 58 59 virtual void dump(int fd, const Vector<String16> &args) const; 60 61 /** 62 * Set the transform on the output stream; one of the 63 * HAL_TRANSFORM_* / NATIVE_WINDOW_TRANSFORM_* constants. 64 */ 65 status_t setTransform(int transform); 66 67 /** 68 * Return if this output stream is for video encoding. 69 */ 70 bool isVideoStream() const; 71 72 protected: 73 Camera3OutputStream(int id, camera3_stream_type_t type, 74 uint32_t width, uint32_t height, int format, 75 android_dataspace dataSpace, camera3_stream_rotation_t rotation); 76 77 /** 78 * Note that we release the lock briefly in this function 79 */ 80 virtual status_t returnBufferCheckedLocked( 81 const camera3_stream_buffer &buffer, 82 nsecs_t timestamp, 83 bool output, 84 /*out*/ 85 sp<Fence> *releaseFenceOut); 86 87 virtual status_t disconnectLocked(); 88 89 sp<Surface> mConsumer; 90 private: 91 int mTransform; 92 93 virtual status_t setTransformLocked(int transform); 94 95 bool mTraceFirstBuffer; 96 97 // Name of Surface consumer 98 String8 mConsumerName; 99 100 /** 101 * Internal Camera3Stream interface 102 */ 103 virtual status_t getBufferLocked(camera3_stream_buffer *buffer); 104 virtual status_t returnBufferLocked( 105 const camera3_stream_buffer &buffer, 106 nsecs_t timestamp); 107 108 virtual status_t configureQueueLocked(); 109 110 virtual status_t getEndpointUsage(uint32_t *usage) const; 111 112 }; // class Camera3OutputStream 113 114 } // namespace camera3 115 116 } // namespace android 117 118 #endif 119