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/*
* Copyright © 2018 Mozilla Foundation
*
* This program is made available under an ISC-style license. See the
* accompanying file LICENSE for details.
*/
/* libcubeb api/function test. Check behaviors of registering device changed
* callbacks for the streams. */
#include "gtest/gtest.h"
#if !defined(_XOPEN_SOURCE)
#define _XOPEN_SOURCE 600
#endif
#include <stdio.h>
#include <memory>
#include "cubeb/cubeb.h"
//#define ENABLE_NORMAL_LOG
//#define ENABLE_VERBOSE_LOG
#include "common.h"
#define SAMPLE_FREQUENCY 48000
#define STREAM_FORMAT CUBEB_SAMPLE_FLOAT32LE
#define INPUT_CHANNELS 1
#define INPUT_LAYOUT CUBEB_LAYOUT_MONO
#define OUTPUT_CHANNELS 2
#define OUTPUT_LAYOUT CUBEB_LAYOUT_STEREO
long data_callback(cubeb_stream * stream, void * user, const void * inputbuffer, void * outputbuffer, long nframes)
{
return 0;
}
void state_callback(cubeb_stream * stream, void * user, cubeb_state state)
{
}
void device_changed_callback(void * user)
{
fprintf(stderr, "device changed callback\n");
ASSERT_TRUE(false) << "Error: device changed callback"
" called without changing devices";
}
void test_registering_null_callback_twice(cubeb_stream * stream)
{
int r = cubeb_stream_register_device_changed_callback(stream, nullptr);
if (r == CUBEB_ERROR_NOT_SUPPORTED) {
return;
}
ASSERT_EQ(r, CUBEB_OK) << "Error registering null device changed callback";
r = cubeb_stream_register_device_changed_callback(stream, nullptr);
ASSERT_EQ(r, CUBEB_OK) << "Error registering null device changed callback again";
}
void test_registering_and_unregistering_callback(cubeb_stream * stream)
{
int r = cubeb_stream_register_device_changed_callback(stream, device_changed_callback);
if (r == CUBEB_ERROR_NOT_SUPPORTED) {
return;
}
ASSERT_EQ(r, CUBEB_OK) << "Error registering device changed callback";
r = cubeb_stream_register_device_changed_callback(stream, nullptr);
ASSERT_EQ(r, CUBEB_OK) << "Error unregistering device changed callback";
}
TEST(cubeb, device_changed_callbacks)
{
cubeb * ctx;
cubeb_stream * stream;
cubeb_stream_params input_params;
cubeb_stream_params output_params;
int r = CUBEB_OK;
uint32_t latency_frames = 0;
r = common_init(&ctx, "Cubeb duplex example with device change");
ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
cleanup_cubeb_at_exit(ctx, cubeb_destroy);
/* typical user-case: mono input, stereo output, low latency. */
input_params.format = STREAM_FORMAT;
input_params.rate = SAMPLE_FREQUENCY;
input_params.channels = INPUT_CHANNELS;
input_params.layout = INPUT_LAYOUT;
input_params.prefs = CUBEB_STREAM_PREF_NONE;
output_params.format = STREAM_FORMAT;
output_params.rate = SAMPLE_FREQUENCY;
output_params.channels = OUTPUT_CHANNELS;
output_params.layout = OUTPUT_LAYOUT;
output_params.prefs = CUBEB_STREAM_PREF_NONE;
r = cubeb_get_min_latency(ctx, &output_params, &latency_frames);
ASSERT_EQ(r, CUBEB_OK) << "Could not get minimal latency";
r = cubeb_stream_init(ctx, &stream, "Cubeb duplex",
NULL, &input_params, NULL, &output_params,
latency_frames, data_callback, state_callback, nullptr);
ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
test_registering_null_callback_twice(stream);
test_registering_and_unregistering_callback(stream);
cubeb_stream_destroy(stream);
}
#undef SAMPLE_FREQUENCY
#undef STREAM_FORMAT
#undef INPUT_CHANNELS
#undef INPUT_LAYOUT
#undef OUTPUT_CHANNELS
#undef OUTPUT_LAYOUT
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