mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-06-01 01:41:37 +00:00
150 lines
3.3 KiB
C++
150 lines
3.3 KiB
C++
/*
|
|
* Copyright © 2011 Mozilla Foundation
|
|
*
|
|
* This program is made available under an ISC-style license. See the
|
|
* accompanying file LICENSE for details.
|
|
*/
|
|
|
|
/* libcubeb api/function test. Plays a simple tone. */
|
|
#ifdef NDEBUG
|
|
#undef NDEBUG
|
|
#endif
|
|
#define _XOPEN_SOURCE 600
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include <assert.h>
|
|
#include <limits.h>
|
|
|
|
#include "cubeb/cubeb.h"
|
|
#include "common.h"
|
|
#ifdef CUBEB_GECKO_BUILD
|
|
#include "TestHarness.h"
|
|
#endif
|
|
|
|
#define SAMPLE_FREQUENCY 48000
|
|
#if (defined(_WIN32) || defined(__WIN32__))
|
|
#define STREAM_FORMAT CUBEB_SAMPLE_FLOAT32LE
|
|
#else
|
|
#define STREAM_FORMAT CUBEB_SAMPLE_S16LE
|
|
#endif
|
|
|
|
/* store the phase of the generated waveform */
|
|
struct cb_user_data {
|
|
long position;
|
|
};
|
|
|
|
long data_cb(cubeb_stream *stream, void *user, void *buffer, long nframes)
|
|
{
|
|
struct cb_user_data *u = (struct cb_user_data *)user;
|
|
#if (defined(_WIN32) || defined(__WIN32__))
|
|
float *b = (float *)buffer;
|
|
#else
|
|
short *b = (short *)buffer;
|
|
#endif
|
|
float t1, t2;
|
|
int i;
|
|
|
|
if (stream == NULL || u == NULL)
|
|
return CUBEB_ERROR;
|
|
|
|
/* generate our test tone on the fly */
|
|
for (i = 0; i < nframes; i++) {
|
|
/* North American dial tone */
|
|
t1 = sin(2*M_PI*(i + u->position)*350/SAMPLE_FREQUENCY);
|
|
t2 = sin(2*M_PI*(i + u->position)*440/SAMPLE_FREQUENCY);
|
|
#if (defined(_WIN32) || defined(__WIN32__))
|
|
b[i] = 0.5 * t1;
|
|
b[i] += 0.5 * t2;
|
|
#else
|
|
b[i] = (SHRT_MAX / 2) * t1;
|
|
b[i] += (SHRT_MAX / 2) * t2;
|
|
#endif
|
|
/* European dial tone */
|
|
/*
|
|
t1 = sin(2*M_PI*(i + u->position)*425/SAMPLE_FREQUENCY);
|
|
#if (defined(_WIN32) || defined(__WIN32__))
|
|
b[i] = t1;
|
|
#else
|
|
b[i] = SHRT_MAX * t1;
|
|
#endif
|
|
*/
|
|
}
|
|
/* remember our phase to avoid clicking on buffer transitions */
|
|
/* we'll still click if position overflows */
|
|
u->position += nframes;
|
|
|
|
return nframes;
|
|
}
|
|
|
|
void state_cb(cubeb_stream *stream, void *user, cubeb_state state)
|
|
{
|
|
struct cb_user_data *u = (struct cb_user_data *)user;
|
|
|
|
if (stream == NULL || u == NULL)
|
|
return;
|
|
|
|
switch (state) {
|
|
case CUBEB_STATE_STARTED:
|
|
printf("stream started\n"); break;
|
|
case CUBEB_STATE_STOPPED:
|
|
printf("stream stopped\n"); break;
|
|
case CUBEB_STATE_DRAINED:
|
|
printf("stream drained\n"); break;
|
|
default:
|
|
printf("unknown stream state %d\n", state);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
#ifdef CUBEB_GECKO_BUILD
|
|
ScopedXPCOM xpcom("test_tone");
|
|
#endif
|
|
|
|
cubeb *ctx;
|
|
cubeb_stream *stream;
|
|
cubeb_stream_params params;
|
|
struct cb_user_data *user_data;
|
|
int r;
|
|
|
|
r = cubeb_init(&ctx, "Cubeb tone example");
|
|
if (r != CUBEB_OK) {
|
|
fprintf(stderr, "Error initializing cubeb library\n");
|
|
return r;
|
|
}
|
|
|
|
params.format = STREAM_FORMAT;
|
|
params.rate = SAMPLE_FREQUENCY;
|
|
params.channels = 1;
|
|
|
|
user_data = (struct cb_user_data *) malloc(sizeof(*user_data));
|
|
if (user_data == NULL) {
|
|
fprintf(stderr, "Error allocating user data\n");
|
|
return CUBEB_ERROR;
|
|
}
|
|
user_data->position = 0;
|
|
|
|
r = cubeb_stream_init(ctx, &stream, "Cubeb tone (mono)", params,
|
|
250, data_cb, state_cb, user_data);
|
|
if (r != CUBEB_OK) {
|
|
fprintf(stderr, "Error initializing cubeb stream\n");
|
|
return r;
|
|
}
|
|
|
|
cubeb_stream_start(stream);
|
|
delay(500);
|
|
cubeb_stream_stop(stream);
|
|
|
|
cubeb_stream_destroy(stream);
|
|
cubeb_destroy(ctx);
|
|
|
|
assert(user_data->position);
|
|
|
|
free(user_data);
|
|
|
|
return CUBEB_OK;
|
|
}
|