From 1573a8c4cde1cd9528b422b2dcc598e37ffe94a7 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Thu, 2 May 2024 19:12:26 +1000
Subject: WIP merge cyclically dependent components into one big component

---
 src/audio/audio_decoder.cpp | 147 --------------------------------------------
 1 file changed, 147 deletions(-)
 delete mode 100644 src/audio/audio_decoder.cpp

(limited to 'src/audio/audio_decoder.cpp')

diff --git a/src/audio/audio_decoder.cpp b/src/audio/audio_decoder.cpp
deleted file mode 100644
index baf17e7a..00000000
--- a/src/audio/audio_decoder.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright 2023 jacqueline <me@jacqueline.id.au>
- *
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-#include "audio_decoder.hpp"
-
-#include <cstdint>
-#include <cstdlib>
-
-#include <algorithm>
-#include <cmath>
-#include <cstddef>
-#include <cstdint>
-#include <cstring>
-#include <deque>
-#include <memory>
-#include <span>
-#include <variant>
-
-#include "cbor.h"
-#include "esp_err.h"
-#include "esp_heap_caps.h"
-#include "esp_log.h"
-#include "freertos/portmacro.h"
-#include "freertos/projdefs.h"
-#include "freertos/queue.h"
-#include "freertos/ringbuf.h"
-#include "i2s_dac.hpp"
-
-#include "audio_converter.hpp"
-#include "audio_events.hpp"
-#include "audio_fsm.hpp"
-#include "audio_sink.hpp"
-#include "audio_source.hpp"
-#include "codec.hpp"
-#include "event_queue.hpp"
-#include "fatfs_audio_input.hpp"
-#include "sample.hpp"
-#include "tasks.hpp"
-#include "track.hpp"
-#include "types.hpp"
-#include "ui_fsm.hpp"
-
-namespace audio {
-
-[[maybe_unused]] static const char* kTag = "audio_dec";
-
-static constexpr std::size_t kCodecBufferLength =
-    drivers::kI2SBufferLengthFrames * sizeof(sample::Sample);
-
-auto Decoder::Start(std::shared_ptr<IAudioSource> source,
-                    std::shared_ptr<SampleConverter> sink) -> Decoder* {
-  Decoder* task = new Decoder(source, sink);
-  tasks::StartPersistent<tasks::Type::kAudioDecoder>([=]() { task->Main(); });
-  return task;
-}
-
-Decoder::Decoder(std::shared_ptr<IAudioSource> source,
-                 std::shared_ptr<SampleConverter> mixer)
-    : source_(source), converter_(mixer), codec_(), current_format_() {
-  ESP_LOGI(kTag, "allocating codec buffer, %u KiB", kCodecBufferLength / 1024);
-  codec_buffer_ = {
-      reinterpret_cast<sample::Sample*>(heap_caps_calloc(
-          kCodecBufferLength, sizeof(sample::Sample), MALLOC_CAP_DMA)),
-      kCodecBufferLength};
-}
-
-void Decoder::Main() {
-  for (;;) {
-    if (source_->HasNewStream() || !stream_) {
-      std::shared_ptr<TaggedStream> new_stream = source_->NextStream();
-      if (new_stream && BeginDecoding(new_stream)) {
-        stream_ = new_stream;
-      } else {
-        continue;
-      }
-    }
-
-    if (ContinueDecoding()) {
-      stream_.reset();
-    }
-  }
-}
-
-auto Decoder::BeginDecoding(std::shared_ptr<TaggedStream> stream) -> bool {
-  // Ensure any previous codec is freed before creating a new one.
-  codec_.reset();
-  codec_.reset(codecs::CreateCodecForType(stream->type()).value_or(nullptr));
-  if (!codec_) {
-    ESP_LOGE(kTag, "no codec found for stream");
-    return false;
-  }
-
-  auto open_res = codec_->OpenStream(stream, stream->Offset());
-  if (open_res.has_error()) {
-    ESP_LOGE(kTag, "codec failed to start: %s",
-             codecs::ICodec::ErrorString(open_res.error()).c_str());
-    return false;
-  }
-  stream->SetPreambleFinished();
-  current_sink_format_ = IAudioOutput::Format{
-      .sample_rate = open_res->sample_rate_hz,
-      .num_channels = open_res->num_channels,
-      .bits_per_sample = 16,
-  };
-
-  std::optional<uint32_t> duration;
-  if (open_res->total_samples) {
-    duration = open_res->total_samples.value() / open_res->num_channels /
-               open_res->sample_rate_hz;
-  }
-
-  converter_->beginStream(std::make_shared<TrackInfo>(TrackInfo{
-      .tags = stream->tags(),
-      .uri = stream->Filepath(),
-      .duration = duration,
-      .start_offset = stream->Offset(),
-      .bitrate_kbps = open_res->sample_rate_hz,
-      .encoding = stream->type(),
-      .format = *current_sink_format_,
-  }));
-
-  return true;
-}
-
-auto Decoder::ContinueDecoding() -> bool {
-  auto res = codec_->DecodeTo(codec_buffer_);
-  if (res.has_error()) {
-    converter_->endStream();
-    return true;
-  }
-
-  if (res->samples_written > 0) {
-    converter_->continueStream(codec_buffer_.first(res->samples_written));
-  }
-
-  if (res->is_stream_finished) {
-    converter_->endStream();
-    codec_.reset();
-  }
-
-  return res->is_stream_finished;
-}
-
-}  // namespace audio
-- 
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