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#include "audio_decoder.hpp"
#include <cstddef>
#include "esp_heap_caps.h"
#include "include/audio_element.hpp"
#include "include/fatfs_audio_input.hpp"
namespace audio {
static const TickType_t kMaxWaitTicks = portMAX_DELAY;
// TODO: could this be larger? depends on the codecs i guess
static const std::size_t kWorkingBufferSize = kMaxFrameSize;
AudioDecoder::AudioDecoder() {
working_buffer_ = heap_caps_malloc(kWorkingBufferSize, MALLOC_CAP_SPIRAM);
}
AudioDecoder::~AudioDecoder() {
free(working_buffer_);
}
auto AudioDecoder::InputCommandQueue() -> QueueHandle_t {
return input_queue_;
}
auto AudioDecoder::SetInputCommandQueue(QueueHandle_t queue) -> void {
input_queue_ = queue;
}
auto AudioDecoder::SetOutputCommandQueue(QueueHandle_t queue) -> void {
output_queue_ = queue;
}
auto AudioDecoder::InputBuffer() -> StreamBufferHandle_t {
return input_buffer_;
}
auto AudioDecoder::SetInputBuffer(StreamBufferHandle_t buffer) -> void {
input_buffer_ = buffer;
}
auto AudioDecoder::SetOutputBuffer(StreamBufferHandle_t buffer) -> void {
output_buffer_ = buffer;
}
auto AudioDecoder::ProcessElementCommand(void* command) -> ProcessResult {
FatfsAudioInput::OutputCommand *real = std::reinterpret_cast<FatfsAudioInput::OutputCommand*>(command);
if (current_codec_->CanHandleExtension(real->extension)) {
// TODO: Do we need to reset the codec?
delete real;
return OK;
}
auto result = codecs::CreateCodecForExtension(real->extension);
// TODO: handle error case
if (result.has_value()) {
current_codec_ = result.value();
}
delete real;
return OK;
}
auto AudioDecoder::SkipElementCommand(void* command) -> void {
FatfsAudioInput::OutputCommand *real = std::reinterpret_cast<FatfsAudioInput::OutputCommand*>(command);
delete real;
}
auto AudioDecoder::ProcessData(uint8_t* data, uint16_t length) -> ProcessResult {
if (current_codec_ == nullptr) {
// TODO: signal this
return OK;
}
auto result = current_codec_->Process(data, length, working_buffer_, kWorkingBufferSize);
if (result.has_value()) {
xStreamBufferSend(&output_buffer_, working_buffer_, result.value(), kMaxWaitTicks);
} else {
// TODO: handle i guess
return ERROR;
}
return OK;
}
auto AudioDecoder::ProcessIdle() -> ProcessResult {
// Not used.
return OK;
}
auto AudioDecoder::Pause() -> void {
// TODO.
}
auto AudioDecoder::IsPaused() -> bool {
// TODO.
}
auto AudioDecoder::Resume() -> void {
// TODO.
}
} // namespace audio
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