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
22namespace android {
23
24namespace camera3 {
25
26/**
27 * An interface for managing a single stream of output data from the camera
28 * device.
29 */
30class Camera3OutputStreamInterface : public virtual Camera3StreamInterface {
31  public:
32    /**
33     * Set the transform on the output stream; one of the
34     * HAL_TRANSFORM_* / NATIVE_WINDOW_TRANSFORM_* constants.
35     */
36    virtual status_t setTransform(int transform) = 0;
37
38    /**
39     * Return if this output stream is for video encoding.
40     */
41    virtual bool isVideoStream() const = 0;
42
43    /**
44     * Return if the consumer configuration of this stream is deferred.
45     */
46    virtual bool isConsumerConfigurationDeferred(size_t surface_id = 0) const = 0;
47
48    /**
49     * Set the consumer surfaces to the output stream.
50     */
51    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers) = 0;
52
53    /**
54     * Detach an unused buffer from the stream.
55     *
56     * buffer must be non-null; fenceFd may null, and if it is non-null, but
57     * there is no valid fence associated with the detached buffer, it will be
58     * set to -1.
59     *
60     */
61    virtual status_t detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd) = 0;
62};
63
64} // namespace camera3
65
66} // namespace android
67
68#endif
69