1 /*
2  * Copyright 2018 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 CODEC2_HIDL_V1_0_UTILS_INPUTSURFACECONNECTION_H
18 #define CODEC2_HIDL_V1_0_UTILS_INPUTSURFACECONNECTION_H
19 
20 #include <codec2/hidl/1.0/Component.h>
21 #include <codec2/hidl/1.0/Configurable.h>
22 
23 #include <android/hardware/media/c2/1.0/IComponent.h>
24 #include <android/hardware/media/c2/1.0/IConfigurable.h>
25 #include <android/hardware/media/c2/1.0/IInputSurfaceConnection.h>
26 
27 #include <media/stagefright/bqhelper/GraphicBufferSource.h>
28 
29 #include <hidl/HidlSupport.h>
30 #include <hidl/Status.h>
31 
32 #include <C2Component.h>
33 
34 #include <memory>
35 #include <mutex>
36 
37 namespace android {
38 namespace hardware {
39 namespace media {
40 namespace c2 {
41 namespace V1_0 {
42 namespace utils {
43 
44 using ::android::hardware::Return;
45 using ::android::hardware::Void;
46 using ::android::sp;
47 using ::android::GraphicBufferSource;
48 
49 // An InputSurfaceConnection connects an InputSurface to a sink, which may be an
50 // IInputSink or a local C2Component. This can be specified by choosing the
51 // corresponding constructor. The reason for distinguishing these two cases is
52 // that when an InputSurfaceConnection lives in the same process as the
53 // component that processes the buffers, data parceling is not needed.
54 struct InputSurfaceConnection : public IInputSurfaceConnection {
55 
56     virtual Return<Status> disconnect() override;
57 
58     virtual Return<sp<IConfigurable>> getConfigurable() override;
59 
60 protected:
61 
62     InputSurfaceConnection(
63             const sp<GraphicBufferSource>& source,
64             const std::shared_ptr<C2Component>& comp,
65             const sp<ComponentStore>& store);
66 
67     InputSurfaceConnection(
68             const sp<GraphicBufferSource>& source,
69             const sp<IInputSink>& sink,
70             const sp<ComponentStore>& store);
71 
72     bool init();
73 
74     friend struct InputSurface;
75 
76     InputSurfaceConnection() = delete;
77     InputSurfaceConnection(const InputSurfaceConnection&) = delete;
78     void operator=(const InputSurfaceConnection&) = delete;
79 
80     struct Impl;
81 
82     std::mutex mImplMutex;
83     sp<Impl> mImpl;
84     sp<CachedConfigurable> mConfigurable;
85 
86     virtual ~InputSurfaceConnection() override;
87 };
88 
89 }  // namespace utils
90 }  // namespace V1_0
91 }  // namespace c2
92 }  // namespace media
93 }  // namespace hardware
94 }  // namespace android
95 
96 #endif  // CODEC2_HIDL_V1_0_UTILS_INPUTSURFACECONNECTION_H
97