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
|
#include <ClanLib/core.h>
#include <ClanLib/vorbis.h>
#include <ClanLib/sound.h>
#include <ClanLib/display.h>
#include <ClanLib/gl.h>
#include <ClanLib/application.h>
class CL_DistortFilter : public CL_SoundFilter
{
public:
CL_DistortFilter(int distortion) : m_distortion(distortion)
{
rand_map = new int[2048];
for (int i=0;i<2048;i++)
{
rand_map[i] = (rand()%distortion) - (distortion/2);
}
rand_lim = 1024+rand()%1024;
rand_pos = rand()%1024;
}
~CL_DistortFilter()
{
delete[] rand_map;
}
virtual void filter(int **sample_data, int num_samples, int channels)
{
for (int c=0;c<channels;c++)
{
for (int i=0;i<num_samples;i++)
{
sample_data[c][i] = sample_data[c][i]+rand_map[rand_pos++];
if (rand_pos >= rand_lim)
{
rand_lim = 1024+rand()%1024;
rand_pos = rand()%1024;
}
}
}
}
private:
int m_distortion;
int *rand_map;
int rand_lim;
int rand_pos;
};
class MyApp : public CL_ClanApplication
{
public:
virtual int main(int argc, char** argv)
{
// Create a console window for text-output if not available
CL_ConsoleWindow console("Console");
console.redirect_stdio();
try
{
CL_SetupCore setup_core;
CL_SetupSound setup_sound;
CL_SetupDisplay setup_display;
CL_SetupGL setup_gl;
CL_SetupVorbis setup_vorbis;
CL_SoundOutput sound_output(44100);
CL_DisplayWindow window("SoundFilters", 320, 200);
// Load ogg file into a soundbuffer
CL_SoundBuffer sample("cheer1.ogg");
CL_FadeFilter fade(1.0f);
CL_InverseEchoFilter inverseecho(128*1024);
CL_DistortFilter distort(10000);
CL_EchoFilter echo(8*1024);
CL_SoundFilter *current_filter = 0;
int current_key = 0;
// Prepare playback session
CL_SoundBuffer_Session playback(sample.prepare());
playback.set_looping(true);
std::cout << "Playing vorbis session...Press 1-4 to apply filters, 5 to remove" << std::endl;
// Play it!
playback.play();
// Loop until done playing the ogg file
while (playback.is_playing() && !CL_Keyboard::get_keycode(CL_KEY_ESCAPE))
{
CL_Display::clear();
if(CL_Keyboard::get_keycode(CL_KEY_1) && current_key != CL_KEY_1)
{
current_key = CL_KEY_1;
std::cout << "Applying fade filter" << std::endl;
if(current_filter)
playback.remove_filter(current_filter);
current_filter = &fade;
fade.set_volume(1.0f);
fade.fade_to_volume(0.0f, 3*1000); // fade out, duration 3 seconds.
playback.add_filter(current_filter);
}
if(CL_Keyboard::get_keycode(CL_KEY_2) && current_key != CL_KEY_2)
{
current_key = CL_KEY_2;
std::cout << "Applying inverse echo filter" << std::endl;
if(current_filter)
playback.remove_filter(current_filter);
current_filter = &inverseecho;
playback.add_filter(current_filter);
}
if(CL_Keyboard::get_keycode(CL_KEY_3) && current_key != CL_KEY_3)
{
current_key = CL_KEY_3;
std::cout << "Applying distort filter" << std::endl;
if(current_filter)
playback.remove_filter(current_filter);
current_filter = &distort;
playback.add_filter(current_filter);
}
if(CL_Keyboard::get_keycode(CL_KEY_4) && current_key != CL_KEY_4)
{
current_key = CL_KEY_4;
std::cout << "Applying echo filter" << std::endl;
if(current_filter)
playback.remove_filter(current_filter);
current_filter = &echo;
playback.add_filter(current_filter);
}
if(CL_Keyboard::get_keycode(CL_KEY_5) && current_key != CL_KEY_5)
{
current_key = CL_KEY_5;
if(current_filter)
{
std::cout << "Removing any filter" << std::endl;
playback.remove_filter(current_filter);
current_filter = NULL;
}
}
CL_Display::flip();
// Make sure the system keeps responding
CL_System::sleep(10);
// Handle system events
CL_System::keep_alive();
}
}
catch (CL_Error err)
{
std::cout << "error: " << err.message.c_str() << std::endl;
// Display console close message and wait for a key
console.display_close_message();
return -1;
}
return 0;
}
} app;
|
