1 /*
2  * Copyright (c) 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 BLUETOOTH_A2DP_DEVICE_H
17 #define BLUETOOTH_A2DP_DEVICE_H
18 
19 #include <cstdint>
20 
21 namespace OHOS {
22 namespace bluetooth {
23 namespace audio {
24 
25 enum class BTAudioStreamState : uint8_t {
26     INVALID,
27     IDLE,
28     STARTING,
29     STARTED,
30     SUSPENDING
31 };
32 
33 typedef bool (*SetUpFunc)();
34 typedef void (*TearDownFunc)();
35 typedef BTAudioStreamState (*GetStateFunc)();
36 typedef bool (*StartPlayingFunc)(uint32_t sampleRate, uint32_t channelCount, uint32_t format);
37 typedef bool (*SuspendPlayingFunc)();
38 typedef bool (*StopPlayingFunc)();
39 typedef size_t (*WriteFrameFunc)(const void* data, size_t size);
40 typedef int32_t (*ReqMmapBufferFunc)(int32_t ashmemLength);
41 typedef void (*ReadMmapPositionFunc)(int64_t &sec, int64_t &nSec, uint64_t &frames);
42 typedef bool (*GetLatencyFunc)(uint32_t &latency);
43 }
44 }
45 }
46 
47 #endif