1/*
2 * Copyright (C) 2016 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_SHARED_OUTPUT_STREAM_H
18#define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
19
20#include "Camera3StreamSplitter.h"
21#include "Camera3OutputStream.h"
22
23namespace android {
24
25namespace camera3 {
26
27class Camera3SharedOutputStream :
28        public Camera3OutputStream {
29public:
30    /**
31     * Set up a stream for formats that have 2 dimensions, with multiple
32     * surfaces. A valid stream set id needs to be set to support buffer
33     * sharing between multiple streams.
34     */
35    Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces,
36            uint32_t width, uint32_t height, int format,
37            uint32_t consumerUsage, android_dataspace dataSpace,
38            camera3_stream_rotation_t rotation, nsecs_t timestampOffset,
39            int setId = CAMERA3_STREAM_SET_ID_INVALID);
40
41    virtual ~Camera3SharedOutputStream();
42
43    virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer);
44
45    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
46
47    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
48
49private:
50    // Surfaces passed in constructor from app
51    std::vector<sp<Surface> > mSurfaces;
52
53    /**
54     * The Camera3StreamSplitter object this stream uses for stream
55     * sharing.
56     */
57    sp<Camera3StreamSplitter> mStreamSplitter;
58
59    /**
60     * Initialize stream splitter.
61     */
62    status_t connectStreamSplitterLocked();
63
64    /**
65     * Internal Camera3Stream interface
66     */
67    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
68            const std::vector<size_t>& surface_ids);
69
70    virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
71            ANativeWindowBuffer* buffer, int anwReleaseFence);
72
73    virtual status_t configureQueueLocked();
74
75    virtual status_t disconnectLocked();
76
77    virtual status_t getEndpointUsage(uint32_t *usage) const;
78
79}; // class Camera3SharedOutputStream
80
81} // namespace camera3
82
83} // namespace android
84
85#endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
86