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https://github.com/mudita/MuditaOS.git
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9a8ffff654
* Fix of the issue that 'File has been deleted' popup would show in Relaxation app at the end of playback if the playback was paused at least once, even though the file wasn't actually deleted. * Added very basic audio decoder error handling and propagation mechanism. * Minor refactor around several audio-related parts.
93 lines
2.4 KiB
C++
93 lines
2.4 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/AudioCommon.hpp"
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#include "Audio/Endpoint.hpp"
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#include "DecoderWorker.hpp"
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#include <memory>
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#include <vector>
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#include <tags_fetcher/TagsFetcher.hpp>
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namespace audio
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{
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namespace channel
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{
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inline constexpr auto monoSound = 1;
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inline constexpr auto stereoSound = 2;
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} // namespace channel
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class Decoder : public Source
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{
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public:
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static constexpr auto fileDeletedRetCode = -1;
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explicit Decoder(const std::string &path);
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virtual ~Decoder();
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virtual std::int32_t decode(std::uint32_t samplesToRead, std::int16_t *pcmData) = 0;
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// Range 0 - 1
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virtual void setPosition(float pos) = 0;
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std::uint32_t getSampleRate()
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{
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return sampleRate;
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}
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std::uint32_t getChannelCount()
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{
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return channelCount;
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}
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float getCurrentPosition()
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{
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return position;
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}
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void onDataReceive() override;
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void enableInput() override;
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void disableInput() override;
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auto getSourceFormat() -> AudioFormat override;
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auto getSupportedFormats() -> std::vector<AudioFormat> override;
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auto getTraits() const -> Endpoint::Traits override;
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void startDecodingWorker(const DecoderWorker::EndOfFileCallback &endOfFileCallback,
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const DecoderWorker::FileDeletedCallback &fileDeletedCallback);
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void stopDecodingWorker();
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// Factory method
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static std::unique_ptr<Decoder> Create(const std::string &path);
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protected:
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virtual auto getBitWidth() -> unsigned int
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{
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return bitsPerSample;
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}
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virtual std::unique_ptr<tags::fetcher::Tags> fetchTags();
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static constexpr Endpoint::Traits decoderCaps = {.usesDMA = false};
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std::uint32_t sampleRate = 0;
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std::uint32_t channelCount = 0;
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std::uint32_t bitsPerSample;
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float position = 0;
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std::FILE *fd = nullptr;
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std::unique_ptr<char[]> streamBuffer;
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std::uint32_t fileSize = 0;
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std::string filePath;
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std::unique_ptr<tags::fetcher::Tags> tags;
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bool isInitialized = false;
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// Decoding worker
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std::unique_ptr<DecoderWorker> audioWorker;
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};
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} // namespace audio
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