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_INPUT_STREAM_H 18 #define ANDROID_SERVERS_CAMERA3_INPUT_STREAM_H 19 20 #include <utils/RefBase.h> 21 #include <gui/Surface.h> 22 #include <gui/BufferItemConsumer.h> 23 24 #include "Camera3IOStreamBase.h" 25 26 namespace android { 27 28 namespace camera3 { 29 30 /** 31 * A class for managing a single stream of input data to the camera device. 32 * 33 * This class serves as a consumer adapter for the HAL, and will consume the 34 * buffers by feeding them into the HAL, as well as releasing the buffers back 35 * the buffers once the HAL is done with them. 36 */ 37 class Camera3InputStream : public Camera3IOStreamBase { 38 public: 39 /** 40 * Set up a stream for formats that have fixed size, such as RAW and YUV. 41 */ 42 Camera3InputStream(int id, uint32_t width, uint32_t height, int format); 43 ~Camera3InputStream(); 44 45 virtual void dump(int fd, const Vector<String16> &args) const; 46 47 /** 48 * Get the producer interface for this stream, to hand off to a producer. 49 * The producer must be connected to the provided interface before 50 * finishConfigure is called on this stream. 51 */ 52 sp<IGraphicBufferProducer> getProducerInterface() const; 53 54 private: 55 56 typedef BufferItemConsumer::BufferItem BufferItem; 57 58 sp<BufferItemConsumer> mConsumer; 59 Vector<BufferItem> mBuffersInFlight; 60 61 /** 62 * Camera3IOStreamBase 63 */ 64 virtual status_t returnBufferCheckedLocked( 65 const camera3_stream_buffer &buffer, 66 nsecs_t timestamp, 67 bool output, 68 /*out*/ 69 sp<Fence> *releaseFenceOut); 70 71 /** 72 * Camera3Stream interface 73 */ 74 75 virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer); 76 virtual status_t returnInputBufferLocked( 77 const camera3_stream_buffer &buffer); 78 virtual status_t disconnectLocked(); 79 80 virtual status_t configureQueueLocked(); 81 82 }; // class Camera3InputStream 83 84 }; // namespace camera3 85 86 }; // namespace android 87 88 #endif 89