/* * 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); }