MPD  0.20.15
DsdLib.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
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9  *
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13  * GNU General Public License for more details.
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18  */
19 
20 #ifndef MPD_DECODER_DSDLIB_HXX
21 #define MPD_DECODER_DSDLIB_HXX
22 
23 #include "system/ByteOrder.hxx"
24 #include "input/Offset.hxx"
25 #include "Compiler.h"
26 
27 #include <stdint.h>
28 
29 struct TagHandler;
30 class DecoderClient;
31 class InputStream;
32 
33 struct DsdId {
34  char value[4];
35 
36  gcc_pure
37  bool Equals(const char *s) const noexcept;
38 };
39 
40 class DsdUint64 {
41  uint32_t lo;
42  uint32_t hi;
43 
44 public:
45  constexpr uint64_t Read() const {
46  return (uint64_t(FromLE32(hi)) << 32) |
47  uint64_t(FromLE32(lo));
48  }
49 };
50 
51 class DffDsdUint64 {
52  uint32_t hi;
53  uint32_t lo;
54 
55 public:
56  constexpr uint64_t Read() const {
57  return (uint64_t(FromBE32(hi)) << 32) |
58  uint64_t(FromBE32(lo));
59  }
60 };
61 
62 bool
64  offset_type offset);
65 
66 bool
68  offset_type delta);
69 
74 bool
75 dsdlib_valid_freq(uint32_t samplefreq) noexcept;
76 
81 void
83  const TagHandler &handler,
84  void *handler_ctx, offset_type tagoffset);
85 
86 #endif
constexpr uint64_t Read() const
Definition: DsdLib.hxx:45
An interface between the decoder plugin and the MPD core.
Definition: Client.hxx:39
gcc_const bool dsdlib_valid_freq(uint32_t samplefreq) noexcept
Check if the sample frequency is a valid DSD frequency.
A callback table for receiving metadata of a song.
Definition: TagHandler.hxx:32
bool dsdlib_skip(DecoderClient *client, InputStream &is, offset_type delta)
static constexpr uint32_t FromLE32(uint32_t value)
Converts a 32bit value from little endian to the system&#39;s byte order.
Definition: ByteOrder.hxx:178
void dsdlib_tag_id3(InputStream &is, const TagHandler &handler, void *handler_ctx, offset_type tagoffset)
Add tags from ID3 tag.
#define gcc_const
Definition: Compiler.h:109
constexpr uint64_t Read() const
Definition: DsdLib.hxx:56
char value[4]
Definition: DsdLib.hxx:34
uint64_t offset_type
A type for absolute offsets in a file.
Definition: Offset.hxx:30
Definition: DsdLib.hxx:33
static constexpr uint32_t FromBE32(uint32_t value)
Converts a 32bit value from big endian to the system&#39;s byte order.
Definition: ByteOrder.hxx:151
#define gcc_pure
Definition: Compiler.h:116
gcc_pure bool Equals(const char *s) const noexcept
bool dsdlib_skip_to(DecoderClient *client, InputStream &is, offset_type offset)