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80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022, Lucas Chollet <lucas.chollet@free.fr>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/Vector.h>
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namespace Audio {
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// 11.20. PICTURE_TYPE (in Flac specification)
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enum class ID3PictureType : u32 {
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Other = 0,
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FileIcon = 1,
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OtherFileIcon = 2,
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FrontCover = 3,
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BackCover = 4,
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LeafletPage = 5,
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Media = 6,
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LeadArtist = 7,
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Artist = 8,
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Conductor = 9,
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Band = 10,
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Composer = 11,
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Lyricist = 12,
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RecordingLocation = 13,
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DuringRecording = 14,
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DuringPerformance = 15,
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MovieScreenCapture = 16,
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BrightColouredFish = 17,
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Illustration = 18,
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BandLogoType = 19,
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PublisherLogoType = 20,
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// others are reserved
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};
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// Note: This was first implemented for Flac but is compatible with ID3v2
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struct PictureData {
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ID3PictureType type {};
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String mime_string {};
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String description_string {};
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u32 width {};
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u32 height {};
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u32 color_depth {};
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u32 colors {};
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Vector<u8> data;
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};
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// A generic sample seek point within a file.
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struct SeekPoint {
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u64 sample_index;
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u64 byte_offset;
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};
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class SeekTable {
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public:
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Optional<SeekPoint const&> seek_point_before(u64 sample_index) const;
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// Returns the distance between the closest two seek points around the sample index.
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// The lower seek point may be exactly at the sample index, but the upper seek point must be after the sample index.
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Optional<u64> seek_point_sample_distance_around(u64 sample_index) const;
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size_t size() const;
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ReadonlySpan<SeekPoint> seek_points() const;
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Vector<SeekPoint>& seek_points();
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ErrorOr<void> insert_seek_point(SeekPoint);
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private:
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// Invariant: The list of seek points is always sorted.
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// This makes all operations, such as inserting and searching, faster.
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Vector<SeekPoint> m_seek_points;
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};
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}
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