1 /*
2  * Copyright (C) 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include <vector>
20 
21 #include "StreamAlsa.h"
22 #include "StreamSwitcher.h"
23 
24 namespace aidl::android::hardware::audio::core {
25 
26 class StreamPrimary : public StreamAlsa {
27   public:
28     StreamPrimary(StreamContext* context, const Metadata& metadata);
29 
30     ::android::status_t start() override;
31     ::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
32                                  int32_t* latencyMs) override;
33     ::android::status_t refinePosition(StreamDescriptor::Position* position) override;
34 
35   protected:
36     std::vector<alsa::DeviceProfile> getDeviceProfiles() override;
37 
38     const bool mIsAsynchronous;
39     int64_t mStartTimeNs = 0;
40     long mFramesSinceStart = 0;
41     bool mSkipNextTransfer = false;
42 };
43 
44 class StreamInPrimary final : public StreamIn, public StreamSwitcher, public StreamInHwGainHelper {
45   public:
46     friend class ndk::SharedRefBase;
47     StreamInPrimary(
48             StreamContext&& context,
49             const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
50             const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
51 
52   private:
53     static bool useStubStream(const ::aidl::android::media::audio::common::AudioDevice& device);
54 
55     DeviceSwitchBehavior switchCurrentStream(
56             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
57             override;
58     std::unique_ptr<StreamCommonInterfaceEx> createNewStream(
59             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices,
60             StreamContext* context, const Metadata& metadata) override;
onClose(StreamDescriptor::State)61     void onClose(StreamDescriptor::State) override { defaultOnClose(); }
62 
63     ndk::ScopedAStatus getHwGain(std::vector<float>* _aidl_return) override;
64     ndk::ScopedAStatus setHwGain(const std::vector<float>& in_channelGains) override;
65 };
66 
67 class StreamOutPrimary final : public StreamOut,
68                                public StreamSwitcher,
69                                public StreamOutHwVolumeHelper {
70   public:
71     friend class ndk::SharedRefBase;
72     StreamOutPrimary(StreamContext&& context,
73                      const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
74                      const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
75                              offloadInfo);
76 
77   private:
78     static bool useStubStream(const ::aidl::android::media::audio::common::AudioDevice& device);
79 
80     DeviceSwitchBehavior switchCurrentStream(
81             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
82             override;
83     std::unique_ptr<StreamCommonInterfaceEx> createNewStream(
84             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices,
85             StreamContext* context, const Metadata& metadata) override;
onClose(StreamDescriptor::State)86     void onClose(StreamDescriptor::State) override { defaultOnClose(); }
87 
88     ndk::ScopedAStatus getHwVolume(std::vector<float>* _aidl_return) override;
89     ndk::ScopedAStatus setHwVolume(const std::vector<float>& in_channelVolumes) override;
90 
91     ndk::ScopedAStatus setConnectedDevices(
92             const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
93             override;
94 };
95 
96 }  // namespace aidl::android::hardware::audio::core
97