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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* ------------------------------------------------------------------
* Copyright (C) 2011 Martin Storsjo
* Copyright (C) 2019 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.
* -------------------------------------------------------------------
*/
#include "Outputs.h"
#include <string>
#include <stdexcept>
#include <cstring>
#include <cerrno>
#include <cassert>
namespace Output {
using namespace std;
void Base::update_audio_levels(int16_t audiolevel_left, int16_t audiolevel_right)
{
m_audio_left = audiolevel_left;
m_audio_right = audiolevel_right;
}
File::File(const char *filename)
{
m_fd = fopen(filename, "wb");
if (m_fd == nullptr) {
throw runtime_error(string("Error opening output file: ") + strerror(errno));
}
}
File::File(FILE *fd) : m_fd(fd) { }
File::~File() {
if (m_fd) {
fclose(m_fd);
m_fd = nullptr;
}
}
bool File::write_frame(const uint8_t *buf, size_t len)
{
if (m_fd == nullptr) {
throw logic_error("Invalid usage of closed File output");
}
return fwrite(buf, len, 1, m_fd) == 1;
}
ZMQ::ZMQ() :
m_ctx(),
m_sock(m_ctx, ZMQ_PUB)
{
// Do not wait at teardown to send all data out
int linger = 0;
m_sock.setsockopt(ZMQ_LINGER, &linger, sizeof(linger));
}
ZMQ::~ZMQ() {}
void ZMQ::connect(const char *uri, const char *keyfile)
{
if (keyfile) {
fprintf(stderr, "Enabling encryption\n");
int rc = readkey(keyfile, m_secretkey);
if (rc) {
throw runtime_error("Error reading secret key");
}
const int yes = 1;
m_sock.setsockopt(ZMQ_CURVE_SERVER,
&yes, sizeof(yes));
m_sock.setsockopt(ZMQ_CURVE_SECRETKEY,
m_secretkey, CURVE_KEYLEN);
}
m_sock.connect(uri);
}
void ZMQ::set_encoder_type(encoder_selection_t& enc, int bitrate)
{
m_encoder = enc;
m_bitrate = bitrate;
}
bool ZMQ::write_frame(const uint8_t *buf, size_t len)
{
if (m_framebuf.size() != ZMQ_HEADER_SIZE + len) {
m_framebuf.resize(ZMQ_HEADER_SIZE + len);
}
zmq_frame_header_t *zmq_frame_header = (zmq_frame_header_t*)m_framebuf.data();
try {
switch (m_encoder) {
case encoder_selection_t::fdk_dabplus:
zmq_frame_header->encoder = ZMQ_ENCODER_FDK;
break;
case encoder_selection_t::toolame_dab:
zmq_frame_header->encoder = ZMQ_ENCODER_TOOLAME;
break;
}
zmq_frame_header->version = 1;
zmq_frame_header->datasize = len;
zmq_frame_header->audiolevel_left = m_audio_left;
zmq_frame_header->audiolevel_right = m_audio_right;
assert(ZMQ_FRAME_SIZE(zmq_frame_header) <= m_framebuf.size());
memcpy(ZMQ_FRAME_DATA(zmq_frame_header), buf, len);
m_sock.send(m_framebuf.data(), ZMQ_FRAME_SIZE(zmq_frame_header),
ZMQ_DONTWAIT);
}
catch (zmq::error_t& e) {
fprintf(stderr, "ZeroMQ send error !\n");
return false;
}
return true;
}
EDI::EDI() { }
EDI::~EDI() { }
void EDI::add_udp_destination(const std::string& host, int port)
{
auto dest = make_shared<edi::udp_destination_t>();
dest->dest_addr = host;
m_edi_conf.dest_port = port;
m_edi_conf.destinations.push_back(dest);
// We cannot carry AF packets over UDP, because they would be too large.
m_edi_conf.enable_pft = true;
// TODO make FEC configurable
}
void EDI::add_tcp_destination(const std::string& host, int port)
{
auto dest = make_shared<edi::tcp_client_t>();
dest->dest_addr = host;
if (dest->dest_port != 0 and dest->dest_port != port) {
throw runtime_error("All EDI UDP outputs must be to the same destination port");
}
dest->dest_port = port;
m_edi_conf.destinations.push_back(dest);
m_edi_conf.dump = true;
}
bool EDI::enabled() const
{
return not m_edi_conf.destinations.empty();
}
bool EDI::write_frame(const uint8_t *buf, size_t len)
{
if (not m_edi_sender) {
m_edi_sender = make_shared<edi::Sender>(m_edi_conf);
}
edi::TagStarPTR edi_tagStarPtr;
edi_tagStarPtr.protocol = "DSTI";
m_edi_tagDSTI.stihf = false;
m_edi_tagDSTI.atstf = false;
m_edi_tagDSTI.rfadf = false;
// DFCT is handled inside the TagDSTI
edi::TagSSm edi_tagPayload;
// TODO make edi_tagPayload.stid configurable
edi_tagPayload.istd_data = buf;
edi_tagPayload.istd_length = len;
// The above Tag Items will be assembled into a TAG Packet
edi::TagPacket edi_tagpacket(m_edi_conf.tagpacket_alignment);
// put tags *ptr, DETI and all subchannels into one TagPacket
edi_tagpacket.tag_items.push_back(&edi_tagStarPtr);
edi_tagpacket.tag_items.push_back(&m_edi_tagDSTI);
edi_tagpacket.tag_items.push_back(&edi_tagPayload);
m_edi_sender->write(edi_tagpacket);
// TODO Handle TCP disconnect
return true;
}
}
|
