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
|
/*
* 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 Library 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.
*
* ShowPlayer.cpp
* A simple show playback system.
* Copyright (C) 2011 Simon Newton
*
* The data file is in the form:
* universe-number channel1,channel2,channel3
* delay-in-ms
* universe-number channel1,channel2,channel3
*/
#include <errno.h>
#include <string.h>
#include <ola/Callback.h>
#include <ola/DmxBuffer.h>
#include <ola/Logging.h>
#include <ola/StringUtils.h>
#include <ola/base/SysExits.h>
#include <ola/client/ClientWrapper.h>
#include <ola/client/OlaClient.h>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include "examples/ShowPlayer.h"
using std::vector;
using std::string;
using ola::DmxBuffer;
ShowPlayer::ShowPlayer(const string &filename)
: m_loader(filename),
m_infinite_loop(false),
m_iteration_remaining(0),
m_loop_delay(0) {
}
ShowPlayer::~ShowPlayer() {}
int ShowPlayer::Init() {
if (!m_client.Setup()) {
OLA_FATAL << "Client Setup failed";
return ola::EXIT_UNAVAILABLE;
}
if (!m_loader.Load()) {
return ola::EXIT_NOINPUT;
}
return ola::EXIT_OK;
}
int ShowPlayer::Playback(unsigned int iterations,
unsigned int duration,
unsigned int delay) {
m_infinite_loop = iterations == 0 || duration != 0;
m_iteration_remaining = iterations;
m_loop_delay = delay;
SendNextFrame();
ola::io::SelectServer *ss = m_client.GetSelectServer();
if (duration != 0) {
ss->RegisterSingleTimeout(
duration * 1000,
ola::NewSingleCallback(ss, &ola::io::SelectServer::Terminate));
}
ss->Run();
return ola::EXIT_OK;
}
void ShowPlayer::SendNextFrame() {
DmxBuffer buffer;
unsigned int universe;
ShowLoader::State state = m_loader.NextFrame(&universe, &buffer);
switch (state) {
case ShowLoader::END_OF_FILE:
HandleEndOfFile();
return;
case ShowLoader::INVALID_LINE:
m_client.GetSelectServer()->Terminate();
return;
default:
{}
}
state = RegisterNextTimeout();
OLA_INFO << "Universe: " << universe << ": " << buffer.ToString();
ola::client::SendDMXArgs args;
m_client.GetClient()->SendDMX(universe, buffer, args);
switch (state) {
case ShowLoader::END_OF_FILE:
HandleEndOfFile();
return;
case ShowLoader::INVALID_LINE:
m_client.GetSelectServer()->Terminate();
return;
default:
{}
}
}
/**
* Get the next time offset
*/
ShowLoader::State ShowPlayer::RegisterNextTimeout() {
unsigned int timeout;
ShowLoader::State state = m_loader.NextTimeout(&timeout);
if (state != ShowLoader::OK) {
return state;
}
OLA_INFO << "Registering timeout for " << timeout << "ms";
m_client.GetSelectServer()->RegisterSingleTimeout(
timeout,
ola::NewSingleCallback(this, &ShowPlayer::SendNextFrame));
return state;
}
/**
* Handle the case where we reach the end of file
*/
void ShowPlayer::HandleEndOfFile() {
m_iteration_remaining--;
if (m_infinite_loop || m_iteration_remaining > 0) {
m_loader.Reset();
m_client.GetSelectServer()->RegisterSingleTimeout(
m_loop_delay,
ola::NewSingleCallback(this, &ShowPlayer::SendNextFrame));
return;
} else {
// stop the show
m_client.GetSelectServer()->Terminate();
}
}
|
