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96 lines
2.3 KiB
96 lines
2.3 KiB
/*
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* Copyright 2023 jacqueline <me@jacqueline.id.au>
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*
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* SPDX-License-Identifier: GPL-3.0-only
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*/
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#include "bt_audio_output.hpp"
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#include <algorithm>
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <variant>
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#include "esp_err.h"
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#include "esp_heap_caps.h"
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#include "freertos/portmacro.h"
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#include "freertos/projdefs.h"
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#include "gpios.hpp"
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#include "i2c.hpp"
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#include "i2s_dac.hpp"
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#include "result.hpp"
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#include "tasks.hpp"
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#include "wm8523.hpp"
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[[maybe_unused]] static const char* kTag = "BTOUT";
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namespace audio {
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BluetoothAudioOutput::BluetoothAudioOutput(StreamBufferHandle_t s,
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drivers::Bluetooth& bt,
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tasks::WorkerPool& p)
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: IAudioOutput(s), bluetooth_(bt), bg_worker_(p), volume_(10) {}
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BluetoothAudioOutput::~BluetoothAudioOutput() {}
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auto BluetoothAudioOutput::changeMode(Modes mode) -> void {
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if (mode == Modes::kOnPlaying) {
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bluetooth_.SetSource(stream());
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} else {
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bluetooth_.SetSource(nullptr);
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}
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}
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auto BluetoothAudioOutput::SetVolumeImbalance(int_fast8_t balance) -> void {}
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auto BluetoothAudioOutput::SetVolume(uint16_t v) -> void {
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volume_ = std::clamp<uint16_t>(v, 0, 0x7f);
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}
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auto BluetoothAudioOutput::GetVolume() -> uint16_t {
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return volume_;
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}
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auto BluetoothAudioOutput::GetVolumePct() -> uint_fast8_t {
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return static_cast<uint_fast8_t>(static_cast<int>(volume_) * 100 / 0x7f);
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}
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auto BluetoothAudioOutput::GetVolumeDb() -> int_fast16_t {
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return 0;
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}
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auto BluetoothAudioOutput::AdjustVolumeUp() -> bool {
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if (volume_ == 0x7f) {
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return false;
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}
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volume_++;
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bg_worker_.Dispatch<void>([&]() { bluetooth_.SetVolume(volume_); });
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return true;
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}
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auto BluetoothAudioOutput::AdjustVolumeDown() -> bool {
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if (volume_ == 0) {
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return false;
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}
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volume_--;
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bg_worker_.Dispatch<void>([&]() { bluetooth_.SetVolume(volume_); });
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return true;
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}
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auto BluetoothAudioOutput::PrepareFormat(const Format& orig) -> Format {
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// ESP-IDF's current Bluetooth implementation currently handles SBC encoding,
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// but requires a fixed input format.
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return Format{
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.sample_rate = 44100,
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.num_channels = 2,
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.bits_per_sample = 16,
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};
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}
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auto BluetoothAudioOutput::Configure(const Format& fmt) -> void {
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// No configuration necessary; the output format is fixed.
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}
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} // namespace audio
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