1 /*
2  * Copyright (c) 2022-2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef HISTREAMER_HIPLAYER_CALLBACKER_LOOPER_H
17 #define HISTREAMER_HIPLAYER_CALLBACKER_LOOPER_H
18 
19 #include <list>
20 #include <utility>
21 #include "foundation/osal/thread/task.h"
22 #include "i_player_engine.h"
23 #include "plugin/common/any.h"
24 
25 namespace OHOS {
26 namespace Media {
27 class HiPlayerCallbackLooper : public IPlayerEngineObs {
28 public:
29     explicit HiPlayerCallbackLooper();
30     ~HiPlayerCallbackLooper() override;
31 
32     bool IsStarted();
33 
34     void Stop();
35 
36     void StartWithPlayerEngineObs(const std::weak_ptr<IPlayerEngineObs>& obs);
37 
38     void SetPlayEngine(IPlayerEngine* engine);
39 
40     void StartReportMediaProgress(int64_t updateIntervalMs = 1000);
41 
42     void StopReportMediaProgress();
43 
44     void ManualReportMediaProgressOnce();
45 
46     void OnError(PlayerErrorType errorType, int32_t errorCode) override;
47 
48     void OnInfo(PlayerOnInfoType type, int32_t extra, const Format &infoBody) override;
49 
50 private:
51 
52     void LoopOnce();
53 
54     void DoReportMediaProgress();
55     void DoReportInfo(const Plugin::Any& info);
56     void DoReportError(const Plugin::Any& error);
57 
58     struct Event {
EventEvent59         Event(int32_t inWhat, int64_t inWhenMs, Plugin::Any inAny): what(inWhat), whenMs(inWhenMs),
60             detail(std::move(inAny)) {}
61         int32_t what {0};
62         int64_t whenMs {INT64_MAX};
63         Plugin::Any detail;
64     };
65     class EventQueue {
66     public:
67         void Enqueue(const std::shared_ptr<Event>& event);
68         std::shared_ptr<Event> Next();
69         void Quit();
70     private:
71         OSAL::Mutex queueMutex_ {};
72         OSAL::ConditionVariable queueHeadUpdatedCond_ {};
73         std::list<std::shared_ptr<Event>> queue_ {};
74         bool quit_ {false};
75     };
76 
77     OSAL::Task task_;
78     bool taskStarted_ {false};
79     IPlayerEngine* playerEngine_ {};
80     std::weak_ptr<IPlayerEngineObs> obs_ {};
81     EventQueue eventQueue_ {};
82     bool reportMediaProgress_ {false};
83     int64_t reportProgressIntervalMs_ {100}; // default interval is 100 ms
84 };
85 }  // namespace Media
86 }  // namespace OHOS
87 #endif // HISTREAMER_HIPLAYER_CALLBACKER_LOOPER_H
88