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2e04d268c4
Workaround for the issue that A2DP stream would sometimes not restart when music player changes song to the next one.
117 lines
3.9 KiB
C++
117 lines
3.9 KiB
C++
// Copyright (c) 2017-2024, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include <Audio/Endpoint.hpp>
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#include <Audio/AudioDevice.hpp>
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#include <Audio/AudioFormat.hpp>
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#include <Audio/Stream.hpp>
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#include <interface/profiles/A2DP/MediaContext.hpp>
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#include <interface/profiles/AudioProfile.hpp>
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extern "C"
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{
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#include "classic/btstack_cvsd_plc.h"
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}
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namespace bluetooth
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{
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class BluetoothAudioDevice : public audio::AudioDevice
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{
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public:
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explicit BluetoothAudioDevice(AudioProfile audioProfile);
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virtual ~BluetoothAudioDevice();
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virtual auto getProfileType() const -> AudioProfile;
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auto setInputGain(float gain) -> audio::AudioDevice::RetCode override;
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// Endpoint control methods
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void enableInput() override;
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void enableOutput() override;
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void disableInput() override;
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void disableOutput() override;
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protected:
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[[nodiscard]] auto isInputEnabled() const -> bool;
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[[nodiscard]] auto isOutputEnabled() const -> bool;
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auto fillSbcAudioBuffer() -> int;
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auto scaleVolume(audio::Stream::Span &dataSpan) const -> void;
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float outputVolume;
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private:
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bool outputEnabled = false;
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bool inputEnabled = false;
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AudioProfile profile = AudioProfile::None;
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};
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class A2DPAudioDevice : public BluetoothAudioDevice
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{
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public:
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explicit A2DPAudioDevice(const float volume) : BluetoothAudioDevice(AudioProfile::A2DP)
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{
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outputVolume = volume;
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}
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auto setOutputVolume(float vol) -> audio::AudioDevice::RetCode override;
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void onDataSend() override;
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void onDataReceive() override;
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auto getSupportedFormats() -> std::vector<audio::AudioFormat> override;
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[[nodiscard]] auto getTraits() const -> Traits override;
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auto getSourceFormat() -> ::audio::AudioFormat override;
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audio::AudioDevice::RetCode Start() override;
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audio::AudioDevice::RetCode Stop() override;
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audio::AudioDevice::RetCode Resume() override;
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audio::AudioDevice::RetCode Pause() override;
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private:
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[[nodiscard]] audio::AudioDevice::RetCode waitUntilStreamPaused() const;
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};
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class CVSDAudioDevice : public BluetoothAudioDevice
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{
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public:
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explicit CVSDAudioDevice(const float volume, const AudioProfile &profile) : BluetoothAudioDevice(profile)
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{
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outputVolume = volume;
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btstack_cvsd_plc_init(&cvsdPlcState);
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}
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auto setOutputVolume(float vol) -> audio::AudioDevice::RetCode override;
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void onDataSend() override;
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void onDataSend(std::uint16_t scoHandle);
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void onDataReceive() override;
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auto getSupportedFormats() -> std::vector<audio::AudioFormat> override;
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[[nodiscard]] auto getTraits() const -> Traits override;
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auto getSourceFormat() -> ::audio::AudioFormat override;
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void enableInput() override;
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void setAclHandle(hci_con_handle_t handle);
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void receiveCVSD(audio::AbstractStream::Span receivedData);
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private:
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static constexpr std::size_t scratchBufferSize = 128;
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static constexpr auto packetHandleOffset = 0;
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static constexpr auto packetStatusOffset = 1;
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static constexpr auto packetLengthOffset = 2;
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static constexpr auto packetDataOffset = 3;
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static constexpr auto supportedBitWidth = 16U;
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static constexpr auto supportedChannels = 1;
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static constexpr auto allGoodMask = 0x30;
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auto decodeCVSD(audio::AbstractStream::Span dataToDecode) -> audio::AbstractStream::Span;
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std::unique_ptr<std::uint8_t[]> rxLeftovers;
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std::unique_ptr<std::int16_t[]> decoderBuffer;
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std::size_t leftoversSize = 0;
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btstack_cvsd_plc_state_t cvsdPlcState;
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hci_con_handle_t aclHandle;
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};
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} // namespace bluetooth
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