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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.
54 lines
2.1 KiB
C++
54 lines
2.1 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 "Decoder.hpp"
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#include <src/dr_flac.h>
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namespace audio
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{
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class DecoderFLAC : public Decoder
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{
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public:
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explicit DecoderFLAC(const std::string &filePath);
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~DecoderFLAC();
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std::int32_t decode(std::uint32_t samplesToRead, std::int16_t *pcmData) override;
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void setPosition(float pos) override;
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private:
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drflac *flac = nullptr;
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/* Data encoded in UTF-8 */
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void parseText(
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std::uint8_t *in, std::uint32_t taglen, std::uint32_t datalen, std::uint8_t *out, std::uint32_t outlen);
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// Callback for when data needs to be read from the client.
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//
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// pUserData [in] The user data that was passed to drflac_open() and family.
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// pBufferOut [out] The output buffer.
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// bytesToRead [in] The number of bytes to read.
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//
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// Returns the number of bytes actually read.
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//
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// A return value of less than bytesToRead indicates the end of the stream. Do _not_ return from this callback
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// until either the entire bytesToRead is filled or you have reached the end of the stream.
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static std::size_t drflacRead(void *pUserData, void *pBufferOut, std::size_t bytesToRead);
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// Callback for when data needs to be seeked.
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//
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// pUserData [in] The user data that was passed to drflac_open() and family.
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// offset [in] The number of bytes to move, relative to the origin. Will never be negative.
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// origin [in] The origin of the seek - the current position or the start of the stream.
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//
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// Returns whether the seek was successful.
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//
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// The offset will never be negative. Whether it is relative to the beginning or current position is
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// determined by the "origin" parameter which will be either drflac_seek_origin_start or
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// drflac_seek_origin_current.
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static drflac_bool32 drflacSeek(void *pUserData, int offset, drflac_seek_origin origin);
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};
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} // namespace audio
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