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_PLUGIN_CORE_AUDIO_SINK_H
17 #define HISTREAMER_PLUGIN_CORE_AUDIO_SINK_H
18 
19 #include <cstddef>
20 #include <memory>
21 
22 #include "plugin/common/plugin_types.h"
23 #include "plugin/common/plugin_tags.h"
24 #include "plugin/common/plugin_buffer.h"
25 #include "plugin/core/base.h"
26 
27 namespace OHOS {
28 namespace Media {
29 namespace Plugin {
30 struct AudioSinkPlugin;
31 
32 class AudioSink : public Base {
33 public:
34     AudioSink(const AudioSink &) = delete;
35     AudioSink operator=(const AudioSink &) = delete;
36     ~AudioSink() override = default;
37 
38     Status Pause();
39 
40     Status Resume();
41 
42     Status Flush();
43 
44     Status Drain();
45 
46     Status Write(const std::shared_ptr<Buffer> &input);
47 
48     Status SetVolume(float volume);
49 
50     Status GetLatency(uint64_t& hstTime);
51 private:
52     friend class PluginManager;
53 
54     AudioSink(uint32_t pkgVer, uint32_t apiVer, std::shared_ptr<AudioSinkPlugin> plugin);
55 
56 private:
57     std::shared_ptr<AudioSinkPlugin> audioSink;
58 };
59 } // namespace Plugin
60 } // namespace Media
61 } // namespace OHOS
62 #endif // HISTREAMER_PLUGIN_CORE_AUDIO_SINK_H
63