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#include "audio_playback.hpp"
#include <algorithm>
#include <cstdint>
#include <memory>
#include <string_view>
#include "audio_decoder.hpp"
#include "audio_task.hpp"
#include "chunk.hpp"
#include "fatfs_audio_input.hpp"
#include "freertos/portmacro.h"
#include "gpio_expander.hpp"
#include "i2s_audio_output.hpp"
#include "storage.hpp"
#include "stream_buffer.hpp"
#include "stream_info.hpp"
#include "stream_message.hpp"
namespace audio {
auto AudioPlayback::create(drivers::GpioExpander* expander,
std::shared_ptr<drivers::SdStorage> storage)
-> cpp::result<std::unique_ptr<AudioPlayback>, Error> {
// Create everything
auto source = std::make_shared<FatfsAudioInput>(storage);
auto codec = std::make_shared<AudioDecoder>();
auto sink_res = I2SAudioOutput::create(expander);
if (sink_res.has_error()) {
return cpp::fail(ERR_INIT_ELEMENT);
}
auto sink = sink_res.value();
auto playback = std::make_unique<AudioPlayback>();
// Configure the pipeline
playback->ConnectElements(source.get(), codec.get());
playback->ConnectElements(codec.get(), sink.get());
// Launch!
playback->element_handles_.push_back(StartAudioTask("src", source));
playback->element_handles_.push_back(StartAudioTask("dec", codec));
playback->element_handles_.push_back(StartAudioTask("sink", sink));
playback->input_handle_ = source->InputEventQueue();
return playback;
}
AudioPlayback::AudioPlayback() {}
AudioPlayback::~AudioPlayback() {
for (auto& element : element_handles_) {
element->Quit();
}
}
auto AudioPlayback::Play(const std::string& filename) -> void {
StreamInfo info;
info.path = filename;
auto event = StreamEvent::CreateStreamInfo(input_handle_, info);
xQueueSend(input_handle_, &event, portMAX_DELAY);
}
auto AudioPlayback::ConnectElements(IAudioElement* src, IAudioElement* sink)
-> void {
src->OutputEventQueue(sink->InputEventQueue());
}
} // namespace audio
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