1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright (C) 2003-2012 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "FLACInput.hxx"
#include "decoder_api.h"
#include "gcc.h"
#include "InputStream.hxx"
FLAC__StreamDecoderReadStatus
FLACInput::Read(FLAC__byte buffer[], size_t *bytes)
{
size_t r = decoder_read(decoder, input_stream, (void *)buffer, *bytes);
*bytes = r;
if (r == 0) {
if (input_stream_lock_eof(input_stream) ||
(decoder != nullptr &&
decoder_get_command(decoder) != DECODE_COMMAND_NONE))
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
else
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
}
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
FLAC__StreamDecoderSeekStatus
FLACInput::Seek(FLAC__uint64 absolute_byte_offset)
{
if (!input_stream->seekable)
return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
if (!input_stream_lock_seek(input_stream,
absolute_byte_offset, SEEK_SET,
nullptr))
return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
}
FLAC__StreamDecoderTellStatus
FLACInput::Tell(FLAC__uint64 *absolute_byte_offset)
{
if (!input_stream->seekable)
return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
*absolute_byte_offset = (FLAC__uint64)input_stream->offset;
return FLAC__STREAM_DECODER_TELL_STATUS_OK;
}
FLAC__StreamDecoderLengthStatus
FLACInput::Length(FLAC__uint64 *stream_length)
{
if (input_stream->size < 0)
return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
*stream_length = (FLAC__uint64)input_stream->size;
return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
}
FLAC__bool
FLACInput::Eof()
{
return (decoder != nullptr &&
decoder_get_command(decoder) != DECODE_COMMAND_NONE &&
decoder_get_command(decoder) != DECODE_COMMAND_SEEK) ||
input_stream_lock_eof(input_stream);
}
void
FLACInput::Error(FLAC__StreamDecoderErrorStatus status)
{
if (decoder == nullptr ||
decoder_get_command(decoder) != DECODE_COMMAND_STOP)
g_warning("%s", FLAC__StreamDecoderErrorStatusString[status]);
}
FLAC__StreamDecoderReadStatus
FLACInput::Read(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__byte buffer[], size_t *bytes,
void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
return i->Read(buffer, bytes);
}
FLAC__StreamDecoderSeekStatus
FLACInput::Seek(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 absolute_byte_offset, void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
return i->Seek(absolute_byte_offset);
}
FLAC__StreamDecoderTellStatus
FLACInput::Tell(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 *absolute_byte_offset, void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
return i->Tell(absolute_byte_offset);
}
FLAC__StreamDecoderLengthStatus
FLACInput::Length(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 *stream_length, void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
return i->Length(stream_length);
}
FLAC__bool
FLACInput::Eof(gcc_unused const FLAC__StreamDecoder *flac_decoder,
void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
return i->Eof();
}
void
FLACInput::Error(gcc_unused const FLAC__StreamDecoder *decoder,
FLAC__StreamDecoderErrorStatus status, void *client_data)
{
FLACInput *i = (FLACInput *)client_data;
i->Error(status);
}
|
