forked from etc/pineapple-src
121 lines
3.1 KiB
C++
Executable file
121 lines
3.1 KiB
C++
Executable file
/*
|
|
* 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. */
|
|
#include "gtest/gtest.h"
|
|
#if !defined(_XOPEN_SOURCE)
|
|
#define _XOPEN_SOURCE 600
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include <memory>
|
|
#include <limits.h>
|
|
#include "cubeb/cubeb.h"
|
|
#include <atomic>
|
|
|
|
//#define ENABLE_NORMAL_LOG
|
|
//#define ENABLE_VERBOSE_LOG
|
|
#include "common.h"
|
|
|
|
|
|
#define SAMPLE_FREQUENCY 48000
|
|
#define STREAM_FORMAT CUBEB_SAMPLE_S16LE
|
|
|
|
/* store the phase of the generated waveform */
|
|
struct cb_user_data {
|
|
std::atomic<long> position;
|
|
};
|
|
|
|
long data_cb_tone(cubeb_stream *stream, void *user, const void* /*inputbuffer*/, void *outputbuffer, long nframes)
|
|
{
|
|
struct cb_user_data *u = (struct cb_user_data *)user;
|
|
short *b = (short *)outputbuffer;
|
|
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);
|
|
b[i] = (SHRT_MAX / 2) * t1;
|
|
b[i] += (SHRT_MAX / 2) * t2;
|
|
/* European dial tone */
|
|
/*
|
|
t1 = sin(2*M_PI*(i + u->position)*425/SAMPLE_FREQUENCY);
|
|
b[i] = SHRT_MAX * t1;
|
|
*/
|
|
}
|
|
/* remember our phase to avoid clicking on buffer transitions */
|
|
/* we'll still click if position overflows */
|
|
u->position += nframes;
|
|
|
|
return nframes;
|
|
}
|
|
|
|
void state_cb_tone(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:
|
|
fprintf(stderr, "stream started\n"); break;
|
|
case CUBEB_STATE_STOPPED:
|
|
fprintf(stderr, "stream stopped\n"); break;
|
|
case CUBEB_STATE_DRAINED:
|
|
fprintf(stderr, "stream drained\n"); break;
|
|
default:
|
|
fprintf(stderr, "unknown stream state %d\n", state);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
TEST(cubeb, tone)
|
|
{
|
|
cubeb *ctx;
|
|
cubeb_stream *stream;
|
|
cubeb_stream_params params;
|
|
int r;
|
|
|
|
r = common_init(&ctx, "Cubeb tone example");
|
|
ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
|
|
|
|
std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
|
|
cleanup_cubeb_at_exit(ctx, cubeb_destroy);
|
|
|
|
params.format = STREAM_FORMAT;
|
|
params.rate = SAMPLE_FREQUENCY;
|
|
params.channels = 1;
|
|
params.layout = CUBEB_LAYOUT_MONO;
|
|
params.prefs = CUBEB_STREAM_PREF_NONE;
|
|
|
|
std::unique_ptr<cb_user_data> user_data(new cb_user_data());
|
|
ASSERT_TRUE(!!user_data) << "Error allocating user data";
|
|
|
|
user_data->position = 0;
|
|
|
|
r = cubeb_stream_init(ctx, &stream, "Cubeb tone (mono)", NULL, NULL, NULL, ¶ms,
|
|
4096, data_cb_tone, state_cb_tone, user_data.get());
|
|
ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
|
|
|
|
std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
|
|
cleanup_stream_at_exit(stream, cubeb_stream_destroy);
|
|
|
|
cubeb_stream_start(stream);
|
|
delay(5000);
|
|
cubeb_stream_stop(stream);
|
|
|
|
ASSERT_TRUE(user_data->position.load());
|
|
}
|