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
|
/* ------------------------------------------------------------------
* Copyright (C) 2015 Matthias P. Braendli
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied.
* See the License for the specific language governing permissions
* and limitations under the License.
* -------------------------------------------------------------------
*/
#ifndef __VLC_INPUT_H_
#define __VLC_INPUT_H_
#include "config.h"
#if HAVE_VLC
#include <cstdio>
#include <string>
#include <vector>
#include <deque>
#include <thread>
#include <mutex>
#include <future>
#include <vlc/vlc.h>
#include "SampleQueue.h"
// 16 bits per sample is fine for now
#define BYTES_PER_SAMPLE 2
class VLCInput
{
public:
VLCInput(const std::string& uri,
int rate,
unsigned channels,
unsigned verbosity) :
m_uri(uri),
m_verbosity(verbosity),
m_channels(channels),
m_rate(rate),
m_vlc(NULL) { }
~VLCInput() { cleanup(); }
/* Prepare the audio input */
int prepare();
/* Read exactly length bytes into buf.
* Blocks if not enough data is available,
* or returns zero if EOF reached.
*
* Returns the number of bytes written into
* the buffer.
*/
ssize_t read(uint8_t* buf, size_t length);
/* Write the last received ICY-Text to the
* file.
*/
void write_icy_text(const std::string& filename);
// Callbacks for VLC
/* Notification of VLC exit */
void exit_cb(void);
/* Prepare a buffer for VLC */
void preRender_cb(
uint8_t** pp_pcm_buffer,
size_t size);
/* Notification from VLC that the buffer is now filled
*/
void postRender_cb();
int getRate() { return m_rate; }
int getChannels() { return m_channels; }
protected:
void cleanup(void);
ssize_t m_read(uint8_t* buf, size_t length);
std::vector<uint8_t> m_current_buf;
mutable std::mutex m_queue_mutex;
std::deque<uint8_t> m_queue;
std::string m_uri;
unsigned m_verbosity;
unsigned m_channels;
int m_rate;
std::future<bool> icy_text_written;
std::string m_nowplaying;
std::string m_nowplaying_previous;
// VLC pointers
libvlc_instance_t *m_vlc;
libvlc_media_player_t *m_mp;
private:
VLCInput(const VLCInput& other) {}
};
#endif // HAVE_VLC
#endif
|
