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 enum class RenderMixerState : uint8_t {
34     INVALID = 0,
35     INITED = 1,
36     NORMAL_STARTED = 2,
37     FAST_STARTED = 3,
38     MIX_STARTED = 4,
39     FAST_ON_MIX_STOP = 5,
40     NORMAL_ON_MIX_STOP = 6
41 };
42 
43 typedef bool (*SetUpFunc)();
44 typedef void (*TearDownFunc)();
45 typedef BTAudioStreamState (*GetStateFunc)();
46 typedef bool (*StartPlayingFunc)(uint32_t sampleRate, uint32_t channelCount, uint32_t format);
47 typedef bool (*SuspendPlayingFunc)();
48 typedef bool (*StopPlayingFunc)();
49 typedef size_t (*WriteFrameFunc)(const void* data, size_t size);
50 typedef int32_t (*ReqMmapBufferFunc)(int32_t ashmemLength);
51 typedef void (*ReadMmapPositionFunc)(int64_t &sec, int64_t &nSec, uint64_t &frames);
52 typedef bool (*GetLatencyFunc)(uint32_t &latency);
53 typedef BTAudioStreamState (*GetRealStateFunc)();
54 typedef RenderMixerState (*GetRenderMixerStateFunc)();
55 }
56 }
57 }
58 
59 #endif