tsiry-sandratraina.com
A modern, network-enabled music player platform built on Rockbox technology.
rockboxd.tsiry-sandratraina.com
rust
deno
navidrome
airplay
libadwaita
zig
mpris
snapcast
mpd
rockbox
audio
subsonic
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 *
9 * Copyright (C) 2005 Dave Chapman
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
15 *
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
18 *
19 ****************************************************************************/
20#include <inttypes.h>
21#include "metadata.h"
22
23/* In simulator / hosted-SDL-app builds, file descriptors for HTTP(S) streams
24 * are encoded as integers <= STREAM_HTTP_FD_BASE (-1000). Plain POSIX
25 * read() / lseek() / filesize() do not handle those values. Route all
26 * metadata I/O through the stream abstraction so that HTTP handles work
27 * identically to normal file descriptors.
28 *
29 * streamfd.h is in apps/, which is on the include path via -I$(APPSDIR) in
30 * uisimulator.make. The macros below are intentionally placed before the
31 * read_uint* macros so those expansions are also redirected. */
32#if defined(SIMULATOR) || defined(APPLICATION)
33#include "streamfd.h"
34/* Route read() and lseek() through the stream abstraction so that HTTP(S)
35 * file descriptors (encoded as integers <= STREAM_HTTP_FD_BASE = -1000) are
36 * handled correctly by all metadata parsers.
37 *
38 * filesize() is intentionally NOT redefined here. It is also a member name
39 * of struct mp3entry (expanded via FS_PREFIX in firmware/include/file.h), so
40 * redefining it as a function-like macro would break every `id3->filesize`
41 * struct access with a "no member named 'filesize'" compiler error.
42 *
43 * Instead, metadata parsers that need a correct file size (e.g. for CBR
44 * duration estimation) must call metadata_filesize(fd), defined below.
45 * stream_filesize_fd() returns Content-Length for HTTP fds and delegates to
46 * the platform filesize() for regular fds. */
47#ifdef read
48#undef read
49#endif
50#define read(fd, buf, n) stream_read((fd), (buf), (n))
51#ifdef lseek
52#undef lseek
53#endif
54#define lseek(fd, off, whence) stream_lseek((fd), (off), (whence))
55#define metadata_filesize(fd) stream_filesize_fd((fd))
56#else
57#define metadata_filesize(fd) filesize(fd)
58#endif /* SIMULATOR || APPLICATION */
59
60#ifdef ROCKBOX_BIG_ENDIAN
61#define IS_BIG_ENDIAN 1
62#else
63#define IS_BIG_ENDIAN 0
64#endif
65
66#define TAG_NAME_LENGTH 32
67#define TAG_VALUE_LENGTH 128
68
69#define FOURCC(a,b,c,d) ((((unsigned long)(a)) << 24) | (((unsigned long)(b)) << 16) | \
70 (((unsigned long)(c)) << 8) | ((unsigned long)(d)))
71
72enum tagtype { TAGTYPE_APE = 1, TAGTYPE_VORBIS };
73
74bool read_ape_tags(int fd, struct mp3entry* id3);
75long read_vorbis_tags(int fd, struct mp3entry *id3,
76 long tag_remaining);
77
78struct ogg_file
79{
80 int fd;
81 bool packet_ended;
82 long packet_remaining;
83};
84
85#ifdef HAVE_ALBUMART
86int id3_unsynchronize(char* tag, int len, bool *ff_found);
87
88size_t base64_decode(const char *in, size_t in_len, unsigned char *out);
89
90bool parse_flac_album_art(unsigned char *buf, int bytes_read, enum mp3_aa_type *type, int *picframe_pos);
91
92int get_ogg_format_and_move_to_comments(int fd, unsigned char *buf);
93bool ogg_file_init(struct ogg_file* file, int fd, int type, int remaining);
94ssize_t ogg_file_read(struct ogg_file* file, void* buffer, size_t buffer_size);
95#endif
96
97int string_option(const char *option, const char *const oplist[], bool ignore_case);
98bool skip_id3v2(int fd, struct mp3entry *id3);
99long read_string(int fd, char* buf, long buf_size, int eos, long size);
100
101int read_uint8(int fd, uint8_t* buf);
102#ifdef ROCKBOX_BIG_ENDIAN
103#define read_uint16be(fd,buf) read((fd), (buf), 2)
104#define read_uint32be(fd,buf) read((fd), (buf), 4)
105#define read_uint64be(fd,buf) read((fd), (buf), 8)
106int read_uint16le(int fd, uint16_t* buf);
107int read_uint32le(int fd, uint32_t* buf);
108int read_uint64le(int fd, uint64_t* buf);
109#else
110int read_uint16be(int fd, uint16_t* buf);
111int read_uint32be(int fd, uint32_t* buf);
112int read_uint64be(int fd, uint64_t* buf);
113#define read_uint16le(fd,buf) read((fd), (buf), 2)
114#define read_uint32le(fd,buf) read((fd), (buf), 4)
115#define read_uint64le(fd,buf) read((fd), (buf), 8)
116#endif
117
118uint64_t get_uint64_le(void* buf);
119uint32_t get_long_le(void* buf);
120uint16_t get_short_le(void* buf);
121uint32_t get_long_be(void* buf);
122uint16_t get_short_be(void* buf);
123int32_t get_slong(void* buf);
124uint32_t get_itunes_int32(char* value, int count);
125long parse_tag(const char* name, char* value, struct mp3entry* id3,
126 char* buf, long buf_remaining, enum tagtype type);