1 /*
2  * Copyright (c) 2021-2021 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_PAUSE_STATE_H
17 #define HISTREAMER_HIPLAYER_PAUSE_STATE_H
18 
19 #include <memory>
20 #include "foundation/log.h"
21 #include "pipeline/core/error_code.h"
22 #include "play_executor.h"
23 #include "state.h"
24 
25 namespace OHOS {
26 namespace Media {
27 class PauseState : public State {
28 public:
PauseState(StateId stateId,PlayExecutor & executor)29     explicit PauseState(StateId stateId, PlayExecutor& executor) : State(stateId, "PauseState", executor)
30     {
31     }
32 
33     ~PauseState() override = default;
34 
Enter(Intent)35     std::tuple<ErrorCode, Action> Enter(Intent) override
36     {
37         MEDIA_LOG_D("Pause state entered.");
38         auto ret = executor_.DoPause();
39         return {ret, Action::ACTION_BUTT};
40     }
41 
Play()42     std::tuple<ErrorCode, Action> Play() override
43     {
44         MEDIA_LOG_D("Play in pause state.");
45         return {ErrorCode::SUCCESS, Action::TRANS_TO_PLAYING};
46     }
47 
Seek(const Plugin::Any & param)48     std::tuple<ErrorCode, Action> Seek(const Plugin::Any& param) override
49     {
50         MEDIA_LOG_D("Seek in pause state.");
51         std::tuple<ErrorCode, Action> err {ErrorCode::ERROR_INVALID_PARAMETER_TYPE, Action::ACTION_BUTT};
52         FALSE_RETURN_V(Plugin::Any::IsSameTypeWith<SeekInfo>(param), err);
53         auto info = Plugin::AnyCast<SeekInfo>(param);
54         auto ret = executor_.DoSeek(info.hstTime, info.mode, true);
55         return {ret, Action::ACTION_BUTT};
56     }
57 
Pause()58     std::tuple<ErrorCode, Action> Pause() override
59     {
60         MEDIA_LOG_D("Pause in pause state.");
61         return {ErrorCode::SUCCESS, Action::ACTION_BUTT};
62     }
63 
Resume()64     std::tuple<ErrorCode, Action> Resume() override
65     {
66         MEDIA_LOG_D("Resume in pause state.");
67         return {ErrorCode::SUCCESS, Action::TRANS_TO_PLAYING};
68     }
69 
Stop()70     std::tuple<ErrorCode, Action> Stop() override
71     {
72         MEDIA_LOG_D("Stop called in pause state.");
73         return {ErrorCode::SUCCESS, Action::TRANS_TO_STOPPED};
74     }
75 };
76 } // namespace Media
77 } // namespace OHOS
78 #endif
79