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
|
#include "sound.h"
#include <portaudio.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static void
StreamFinished( void* synthData )
{
(void)synthData;
}
// unused
int
get_soundcard_id(const char * name)
{
Pa_Initialize();
int i, c=0;
const PaDeviceInfo *deviceInfo;
for( i=0; i< Pa_GetDeviceCount(); i++ ) {
deviceInfo = Pa_GetDeviceInfo(i);
if (deviceInfo->maxOutputChannels == 0 || deviceInfo->defaultLowInputLatency < 0) {
continue;
}
if (!strcmp(name, deviceInfo->name)) {
Pa_Terminate();
return c;
}
c++;
}
Pa_Terminate();
return -1;
}
char *
get_soundcards()
{
int i;
const PaDeviceInfo *deviceInfo;
char *ret = (char *)malloc(sizeof(char) * 4096);
strcpy(ret, "Select Output Device;");
for( i=0; i< Pa_GetDeviceCount(); i++ ) {
deviceInfo = Pa_GetDeviceInfo(i);
if (deviceInfo->maxOutputChannels == 0 || deviceInfo->defaultLowInputLatency < 0) {
continue;
}
strcat(ret, deviceInfo->name);
strcat(ret, ";");
}
ret[strlen(ret) - 1] = '\0';
return ret;
}
void
init_sound(synth_t * synth, PaStreamCallback *streamCallback, const char* device_name)
{
printf("Will try to initialized pulseaudion device [ %s ]\n", device_name);
freopen("/dev/null","w",stderr);
PaError err = Pa_Initialize();
freopen("/dev/tty", "w", stderr);
if (err != paNoError) {
fprintf(stderr, "PortAudio error: %s\n", Pa_GetErrorText(err));
}
int i=0;
const PaDeviceInfo *deviceInfo;
for( i=0; i< Pa_GetDeviceCount(); i++ ) {
deviceInfo = Pa_GetDeviceInfo(i);
if (deviceInfo->maxOutputChannels == 0 ||
deviceInfo->defaultLowInputLatency < 0) {
continue;
}
/* printf("dev: %s || %f || id:%d out:%d || lil:%f lol:%f\n", deviceInfo->name, */
/* deviceInfo->defaultSampleRate, deviceInfo->maxInputChannels, */
/* deviceInfo->maxOutputChannels, deviceInfo->defaultLowInputLatency, */
/* deviceInfo->defaultLowOutputLatency); */
if (!strcmp(deviceInfo->name, device_name)) break;
}
PaStreamParameters outputParameters;
outputParameters.device = i;// Pa_GetDefaultOutputDevice(); /* default output device */
printf("Selected device: dev: %s || %f || id:%d out:%d || lil:%f lol:%f\n", deviceInfo->name,
deviceInfo->defaultSampleRate, deviceInfo->maxInputChannels,
deviceInfo->maxOutputChannels, deviceInfo->defaultLowInputLatency,
deviceInfo->defaultLowOutputLatency);
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
outputParameters.suggestedLatency = deviceInfo->defaultLowOutputLatency;
outputParameters.hostApiSpecificStreamInfo = NULL;
err = Pa_OpenStream(&(synth->stream),
NULL, /* no input */
&outputParameters,
SAMPLE_RATE,
FRAMES_PER_BUFFER,
paClipOff | paDitherOff, /* we won't output out of range samples so don't bother clipping them */
streamCallback,
synth );
if (err != paNoError) {
printf("Error opening stream with %s!!!!!\n",
deviceInfo->name);
if (strcmp(device_name, "default")) {
printf("Trying to use default device\n");
strcpy(synth->soundcard.name, "default");
init_sound(synth, streamCallback, synth->soundcard.name);
}
return;
}
Pa_SetStreamFinishedCallback(synth->stream, &StreamFinished);
Pa_StartStream(synth->stream);
synth->sound_active = 1;
}
void
destroy_sound(synth_t * synth)
{
synth->sound_active = 0;
Pa_StopStream( synth->stream );
Pa_CloseStream( synth->stream );
PaError err = Pa_Terminate();
if( err != paNoError )
fprintf(stderr, "PortAudio error: %s\n", Pa_GetErrorText( err ) );
}
|
