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-rw-r--r--media/libcubeb/gtest/test_loopback.cpp578
1 files changed, 0 insertions, 578 deletions
diff --git a/media/libcubeb/gtest/test_loopback.cpp b/media/libcubeb/gtest/test_loopback.cpp
deleted file mode 100644
index 9977f6f934..0000000000
--- a/media/libcubeb/gtest/test_loopback.cpp
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * Copyright © 2017 Mozilla Foundation
- *
- * This program is made available under an ISC-style license. See the
- * accompanying file LICENSE for details.
- */
-
- /* libcubeb api/function test. Requests a loopback device and checks that
- output is being looped back to input. NOTE: Usage of output devices while
- performing this test will cause flakey results! */
-#include "gtest/gtest.h"
-#if !defined(_XOPEN_SOURCE)
-#define _XOPEN_SOURCE 600
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <algorithm>
-#include <memory>
-#include <mutex>
-#include <string>
-#include "cubeb/cubeb.h"
-//#define ENABLE_NORMAL_LOG
-//#define ENABLE_VERBOSE_LOG
-#include "common.h"
-const uint32_t SAMPLE_FREQUENCY = 48000;
-const uint32_t TONE_FREQUENCY = 440;
-const double OUTPUT_AMPLITUDE = 0.25;
-const int32_t NUM_FRAMES_TO_OUTPUT = SAMPLE_FREQUENCY / 20; /* play ~50ms of samples */
-
-template<typename T> T ConvertSampleToOutput(double input);
-template<> float ConvertSampleToOutput(double input) { return float(input); }
-template<> short ConvertSampleToOutput(double input) { return short(input * 32767.0f); }
-
-template<typename T> double ConvertSampleFromOutput(T sample);
-template<> double ConvertSampleFromOutput(float sample) { return double(sample); }
-template<> double ConvertSampleFromOutput(short sample) { return double(sample / 32767.0); }
-
-/* Simple cross correlation to help find phase shift. Not a performant impl */
-std::vector<double> cross_correlate(std::vector<double> & f,
- std::vector<double> & g,
- size_t signal_length)
-{
- /* the length we sweep our window through to find the cross correlation */
- size_t sweep_length = f.size() - signal_length + 1;
- std::vector<double> correlation;
- correlation.reserve(sweep_length);
- for (size_t i = 0; i < sweep_length; i++) {
- double accumulator = 0.0;
- for (size_t j = 0; j < signal_length; j++) {
- accumulator += f.at(j) * g.at(i + j);
- }
- correlation.push_back(accumulator);
- }
- return correlation;
-}
-
-/* best effort discovery of phase shift between output and (looped) input*/
-size_t find_phase(std::vector<double> & output_frames,
- std::vector<double> & input_frames,
- size_t signal_length)
-{
- std::vector<double> correlation = cross_correlate(output_frames, input_frames, signal_length);
- size_t phase = 0;
- double max_correlation = correlation.at(0);
- for (size_t i = 1; i < correlation.size(); i++) {
- if (correlation.at(i) > max_correlation) {
- max_correlation = correlation.at(i);
- phase = i;
- }
- }
- return phase;
-}
-
-std::vector<double> normalize_frames(std::vector<double> & frames) {
- double max = abs(*std::max_element(frames.begin(), frames.end(),
- [](double a, double b) { return abs(a) < abs(b); }));
- std::vector<double> normalized_frames;
- normalized_frames.reserve(frames.size());
- for (const double frame : frames) {
- normalized_frames.push_back(frame / max);
- }
- return normalized_frames;
-}
-
-/* heuristic comparison of aligned output and input signals, gets flaky if TONE_FREQUENCY is too high */
-void compare_signals(std::vector<double> & output_frames,
- std::vector<double> & input_frames)
-{
- ASSERT_EQ(output_frames.size(), input_frames.size()) << "#Output frames != #input frames";
- size_t num_frames = output_frames.size();
- std::vector<double> normalized_output_frames = normalize_frames(output_frames);
- std::vector<double> normalized_input_frames = normalize_frames(input_frames);
-
- /* calculate mean absolute errors */
- /* mean absolute errors between output and input */
- double io_mas = 0.0;
- /* mean absolute errors between output and silence */
- double output_silence_mas = 0.0;
- /* mean absolute errors between input and silence */
- double input_silence_mas = 0.0;
- for (size_t i = 0; i < num_frames; i++) {
- io_mas += abs(normalized_output_frames.at(i) - normalized_input_frames.at(i));
- output_silence_mas += abs(normalized_output_frames.at(i));
- input_silence_mas += abs(normalized_input_frames.at(i));
- }
- io_mas /= num_frames;
- output_silence_mas /= num_frames;
- input_silence_mas /= num_frames;
-
- ASSERT_LT(io_mas, output_silence_mas)
- << "Error between output and input should be less than output and silence!";
- ASSERT_LT(io_mas, input_silence_mas)
- << "Error between output and input should be less than output and silence!";
-
- /* make sure extrema are in (roughly) correct location */
- /* number of maxima + minama expected in the frames*/
- const long NUM_EXTREMA = 2 * TONE_FREQUENCY * NUM_FRAMES_TO_OUTPUT / SAMPLE_FREQUENCY;
- /* expected index of first maxima */
- const long FIRST_MAXIMUM_INDEX = SAMPLE_FREQUENCY / TONE_FREQUENCY / 4;
- /* Threshold we expect all maxima and minima to be above or below. Ideally
- the extrema would be 1 or -1, but particularly at the start of loopback
- the values seen can be significantly lower. */
- const double THRESHOLD = 0.5;
-
- for (size_t i = 0; i < NUM_EXTREMA; i++) {
- bool is_maximum = i % 2 == 0;
- /* expected offset to current extreme: i * stide between extrema */
- size_t offset = i * SAMPLE_FREQUENCY / TONE_FREQUENCY / 2;
- if (is_maximum) {
- ASSERT_GT(normalized_output_frames.at(FIRST_MAXIMUM_INDEX + offset), THRESHOLD)
- << "Output frames have unexpected missing maximum!";
- ASSERT_GT(normalized_input_frames.at(FIRST_MAXIMUM_INDEX + offset), THRESHOLD)
- << "Input frames have unexpected missing maximum!";
- } else {
- ASSERT_LT(normalized_output_frames.at(FIRST_MAXIMUM_INDEX + offset), -THRESHOLD)
- << "Output frames have unexpected missing minimum!";
- ASSERT_LT(normalized_input_frames.at(FIRST_MAXIMUM_INDEX + offset), -THRESHOLD)
- << "Input frames have unexpected missing minimum!";
- }
- }
-}
-
-struct user_state_loopback {
- std::mutex user_state_mutex;
- long position = 0;
- /* track output */
- std::vector<double> output_frames;
- /* track input */
- std::vector<double> input_frames;
-};
-
-template<typename T>
-long data_cb_loop_duplex(cubeb_stream * stream, void * user, const void * inputbuffer, void * outputbuffer, long nframes)
-{
- struct user_state_loopback * u = (struct user_state_loopback *) user;
- T * ib = (T *) inputbuffer;
- T * ob = (T *) outputbuffer;
-
- if (stream == NULL || inputbuffer == NULL || outputbuffer == NULL) {
- return CUBEB_ERROR;
- }
-
- std::lock_guard<std::mutex> lock(u->user_state_mutex);
- /* generate our test tone on the fly */
- for (int i = 0; i < nframes; i++) {
- double tone = 0.0;
- if (u->position + i < NUM_FRAMES_TO_OUTPUT) {
- /* generate sine wave */
- tone = sin(2 * M_PI*(i + u->position) * TONE_FREQUENCY / SAMPLE_FREQUENCY);
- tone *= OUTPUT_AMPLITUDE;
- }
- ob[i] = ConvertSampleToOutput<T>(tone);
- u->output_frames.push_back(tone);
- /* store any looped back output, may be silence */
- u->input_frames.push_back(ConvertSampleFromOutput(ib[i]));
- }
-
- u->position += nframes;
-
- return nframes;
-}
-
-template<typename T>
-long data_cb_loop_input_only(cubeb_stream * stream, void * user, const void * inputbuffer, void * outputbuffer, long nframes)
-{
- struct user_state_loopback * u = (struct user_state_loopback *) user;
- T * ib = (T *) inputbuffer;
-
- if (outputbuffer != NULL) {
- // Can't assert as it needs to return, so expect to fail instead
- EXPECT_EQ(outputbuffer, (void *) NULL) << "outputbuffer should be null in input only callback";
- return CUBEB_ERROR;
- }
-
- if (stream == NULL || inputbuffer == NULL) {
- return CUBEB_ERROR;
- }
-
- std::lock_guard<std::mutex> lock(u->user_state_mutex);
- for (int i = 0; i < nframes; i++) {
- u->input_frames.push_back(ConvertSampleFromOutput(ib[i]));
- }
-
- return nframes;
-}
-
-template<typename T>
-long data_cb_playback(cubeb_stream * stream, void * user, const void * inputbuffer, void * outputbuffer, long nframes)
-{
- struct user_state_loopback * u = (struct user_state_loopback *) user;
- T * ob = (T *) outputbuffer;
-
- if (stream == NULL || outputbuffer == NULL) {
- return CUBEB_ERROR;
- }
-
- std::lock_guard<std::mutex> lock(u->user_state_mutex);
- /* generate our test tone on the fly */
- for (int i = 0; i < nframes; i++) {
- double tone = 0.0;
- if (u->position + i < NUM_FRAMES_TO_OUTPUT) {
- /* generate sine wave */
- tone = sin(2 * M_PI*(i + u->position) * TONE_FREQUENCY / SAMPLE_FREQUENCY);
- tone *= OUTPUT_AMPLITUDE;
- }
- ob[i] = ConvertSampleToOutput<T>(tone);
- u->output_frames.push_back(tone);
- }
-
- u->position += nframes;
-
- return nframes;
-}
-
-void state_cb_loop(cubeb_stream * stream, void * /*user*/, cubeb_state state)
-{
- if (stream == 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;
-}
-
-void run_loopback_duplex_test(bool is_float)
-{
- cubeb * ctx;
- cubeb_stream * stream;
- cubeb_stream_params input_params;
- cubeb_stream_params output_params;
- int r;
- uint32_t latency_frames = 0;
-
- r = common_init(&ctx, "Cubeb loopback example: duplex stream");
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
-
- std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
- cleanup_cubeb_at_exit(ctx, cubeb_destroy);
-
- input_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- input_params.rate = SAMPLE_FREQUENCY;
- input_params.channels = 1;
- input_params.layout = CUBEB_LAYOUT_MONO;
- input_params.prefs = CUBEB_STREAM_PREF_LOOPBACK;
- output_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- output_params.rate = SAMPLE_FREQUENCY;
- output_params.channels = 1;
- output_params.layout = CUBEB_LAYOUT_MONO;
- output_params.prefs = CUBEB_STREAM_PREF_NONE;
-
- std::unique_ptr<user_state_loopback> user_data(new user_state_loopback());
- ASSERT_TRUE(!!user_data) << "Error allocating user data";
-
- r = cubeb_get_min_latency(ctx, &output_params, &latency_frames);
- ASSERT_EQ(r, CUBEB_OK) << "Could not get minimal latency";
-
- /* setup a duplex stream with loopback */
- r = cubeb_stream_init(ctx, &stream, "Cubeb loopback",
- NULL, &input_params, NULL, &output_params, latency_frames,
- is_float ? data_cb_loop_duplex<float> : data_cb_loop_duplex<short>,
- state_cb_loop, 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(300);
- cubeb_stream_stop(stream);
-
- /* access after stop should not happen, but lock just in case and to appease sanitization tools */
- std::lock_guard<std::mutex> lock(user_data->user_state_mutex);
- std::vector<double> & output_frames = user_data->output_frames;
- std::vector<double> & input_frames = user_data->input_frames;
- ASSERT_EQ(output_frames.size(), input_frames.size())
- << "#Output frames != #input frames";
-
- size_t phase = find_phase(user_data->output_frames, user_data->input_frames, NUM_FRAMES_TO_OUTPUT);
-
- /* extract vectors of just the relevant signal from output and input */
- auto output_frames_signal_start = output_frames.begin();
- auto output_frames_signal_end = output_frames.begin() + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_output_frames(output_frames_signal_start, output_frames_signal_end);
- auto input_frames_signal_start = input_frames.begin() + phase;
- auto input_frames_signal_end = input_frames.begin() + phase + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_input_frames(input_frames_signal_start, input_frames_signal_end);
-
- compare_signals(trimmed_output_frames, trimmed_input_frames);
-}
-
-TEST(cubeb, loopback_duplex)
-{
- run_loopback_duplex_test(true);
- run_loopback_duplex_test(false);
-}
-
-void run_loopback_separate_streams_test(bool is_float)
-{
- cubeb * ctx;
- cubeb_stream * input_stream;
- cubeb_stream * output_stream;
- cubeb_stream_params input_params;
- cubeb_stream_params output_params;
- int r;
- uint32_t latency_frames = 0;
-
- r = common_init(&ctx, "Cubeb loopback example: separate streams");
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
-
- std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
- cleanup_cubeb_at_exit(ctx, cubeb_destroy);
-
- input_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- input_params.rate = SAMPLE_FREQUENCY;
- input_params.channels = 1;
- input_params.layout = CUBEB_LAYOUT_MONO;
- input_params.prefs = CUBEB_STREAM_PREF_LOOPBACK;
- output_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- output_params.rate = SAMPLE_FREQUENCY;
- output_params.channels = 1;
- output_params.layout = CUBEB_LAYOUT_MONO;
- output_params.prefs = CUBEB_STREAM_PREF_NONE;
-
- std::unique_ptr<user_state_loopback> user_data(new user_state_loopback());
- ASSERT_TRUE(!!user_data) << "Error allocating user data";
-
- r = cubeb_get_min_latency(ctx, &output_params, &latency_frames);
- ASSERT_EQ(r, CUBEB_OK) << "Could not get minimal latency";
-
- /* setup an input stream with loopback */
- r = cubeb_stream_init(ctx, &input_stream, "Cubeb loopback input only",
- NULL, &input_params, NULL, NULL, latency_frames,
- is_float ? data_cb_loop_input_only<float> : data_cb_loop_input_only<short>,
- state_cb_loop, user_data.get());
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
-
- std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
- cleanup_input_stream_at_exit(input_stream, cubeb_stream_destroy);
-
- /* setup an output stream */
- r = cubeb_stream_init(ctx, &output_stream, "Cubeb loopback output only",
- NULL, NULL, NULL, &output_params, latency_frames,
- is_float ? data_cb_playback<float> : data_cb_playback<short>,
- state_cb_loop, user_data.get());
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
-
- std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
- cleanup_output_stream_at_exit(output_stream, cubeb_stream_destroy);
-
- cubeb_stream_start(input_stream);
- cubeb_stream_start(output_stream);
- delay(300);
- cubeb_stream_stop(output_stream);
- cubeb_stream_stop(input_stream);
-
- /* access after stop should not happen, but lock just in case and to appease sanitization tools */
- std::lock_guard<std::mutex> lock(user_data->user_state_mutex);
- std::vector<double> & output_frames = user_data->output_frames;
- std::vector<double> & input_frames = user_data->input_frames;
- ASSERT_LE(output_frames.size(), input_frames.size())
- << "#Output frames should be less or equal to #input frames";
-
- size_t phase = find_phase(user_data->output_frames, user_data->input_frames, NUM_FRAMES_TO_OUTPUT);
-
- /* extract vectors of just the relevant signal from output and input */
- auto output_frames_signal_start = output_frames.begin();
- auto output_frames_signal_end = output_frames.begin() + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_output_frames(output_frames_signal_start, output_frames_signal_end);
- auto input_frames_signal_start = input_frames.begin() + phase;
- auto input_frames_signal_end = input_frames.begin() + phase + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_input_frames(input_frames_signal_start, input_frames_signal_end);
-
- compare_signals(trimmed_output_frames, trimmed_input_frames);
-}
-
-TEST(cubeb, loopback_separate_streams)
-{
- run_loopback_separate_streams_test(true);
- run_loopback_separate_streams_test(false);
-}
-
-void run_loopback_silence_test(bool is_float)
-{
- cubeb * ctx;
- cubeb_stream * input_stream;
- cubeb_stream_params input_params;
- int r;
- uint32_t latency_frames = 0;
-
- r = common_init(&ctx, "Cubeb loopback example: record silence");
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
-
- std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
- cleanup_cubeb_at_exit(ctx, cubeb_destroy);
-
- input_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- input_params.rate = SAMPLE_FREQUENCY;
- input_params.channels = 1;
- input_params.layout = CUBEB_LAYOUT_MONO;
- input_params.prefs = CUBEB_STREAM_PREF_LOOPBACK;
-
- std::unique_ptr<user_state_loopback> user_data(new user_state_loopback());
- ASSERT_TRUE(!!user_data) << "Error allocating user data";
-
- r = cubeb_get_min_latency(ctx, &input_params, &latency_frames);
- ASSERT_EQ(r, CUBEB_OK) << "Could not get minimal latency";
-
- /* setup an input stream with loopback */
- r = cubeb_stream_init(ctx, &input_stream, "Cubeb loopback input only",
- NULL, &input_params, NULL, NULL, latency_frames,
- is_float ? data_cb_loop_input_only<float> : data_cb_loop_input_only<short>,
- state_cb_loop, user_data.get());
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
-
- std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
- cleanup_input_stream_at_exit(input_stream, cubeb_stream_destroy);
-
- cubeb_stream_start(input_stream);
- delay(300);
- cubeb_stream_stop(input_stream);
-
- /* access after stop should not happen, but lock just in case and to appease sanitization tools */
- std::lock_guard<std::mutex> lock(user_data->user_state_mutex);
- std::vector<double> & input_frames = user_data->input_frames;
-
- /* expect to have at least ~50ms of frames */
- ASSERT_GE(input_frames.size(), SAMPLE_FREQUENCY / 20);
- double EPISILON = 0.0001;
- /* frames should be 0.0, but use epsilon to avoid possible issues with impls
- that may use ~0.0 silence values. */
- for (double frame : input_frames) {
- ASSERT_LT(abs(frame), EPISILON);
- }
-}
-
-TEST(cubeb, loopback_silence)
-{
- run_loopback_silence_test(true);
- run_loopback_silence_test(false);
-}
-
-void run_loopback_device_selection_test(bool is_float)
-{
- cubeb * ctx;
- cubeb_device_collection collection;
- cubeb_stream * input_stream;
- cubeb_stream * output_stream;
- cubeb_stream_params input_params;
- cubeb_stream_params output_params;
- int r;
- uint32_t latency_frames = 0;
-
- r = common_init(&ctx, "Cubeb loopback example: device selection, separate streams");
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb library";
-
- std::unique_ptr<cubeb, decltype(&cubeb_destroy)>
- cleanup_cubeb_at_exit(ctx, cubeb_destroy);
-
- r = cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_OUTPUT, &collection);
- if (r == CUBEB_ERROR_NOT_SUPPORTED) {
- fprintf(stderr, "Device enumeration not supported"
- " for this backend, skipping this test.\n");
- return;
- }
-
- ASSERT_EQ(r, CUBEB_OK) << "Error enumerating devices " << r;
- /* get first preferred output device id */
- std::string device_id;
- for (size_t i = 0; i < collection.count; i++) {
- if (collection.device[i].preferred) {
- device_id = collection.device[i].device_id;
- break;
- }
- }
- cubeb_device_collection_destroy(ctx, &collection);
- if (device_id.empty()) {
- fprintf(stderr, "Could not find preferred device, aborting test.\n");
- return;
- }
-
- input_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- input_params.rate = SAMPLE_FREQUENCY;
- input_params.channels = 1;
- input_params.layout = CUBEB_LAYOUT_MONO;
- input_params.prefs = CUBEB_STREAM_PREF_LOOPBACK;
- output_params.format = is_float ? CUBEB_SAMPLE_FLOAT32NE : CUBEB_SAMPLE_S16LE;
- output_params.rate = SAMPLE_FREQUENCY;
- output_params.channels = 1;
- output_params.layout = CUBEB_LAYOUT_MONO;
- output_params.prefs = CUBEB_STREAM_PREF_NONE;
-
- std::unique_ptr<user_state_loopback> user_data(new user_state_loopback());
- ASSERT_TRUE(!!user_data) << "Error allocating user data";
-
- r = cubeb_get_min_latency(ctx, &output_params, &latency_frames);
- ASSERT_EQ(r, CUBEB_OK) << "Could not get minimal latency";
-
- /* setup an input stream with loopback */
- r = cubeb_stream_init(ctx, &input_stream, "Cubeb loopback input only",
- device_id.c_str(), &input_params, NULL, NULL, latency_frames,
- is_float ? data_cb_loop_input_only<float> : data_cb_loop_input_only<short>,
- state_cb_loop, user_data.get());
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
-
- std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
- cleanup_input_stream_at_exit(input_stream, cubeb_stream_destroy);
-
- /* setup an output stream */
- r = cubeb_stream_init(ctx, &output_stream, "Cubeb loopback output only",
- NULL, NULL, device_id.c_str(), &output_params, latency_frames,
- is_float ? data_cb_playback<float> : data_cb_playback<short>,
- state_cb_loop, user_data.get());
- ASSERT_EQ(r, CUBEB_OK) << "Error initializing cubeb stream";
-
- std::unique_ptr<cubeb_stream, decltype(&cubeb_stream_destroy)>
- cleanup_output_stream_at_exit(output_stream, cubeb_stream_destroy);
-
- cubeb_stream_start(input_stream);
- cubeb_stream_start(output_stream);
- delay(300);
- cubeb_stream_stop(output_stream);
- cubeb_stream_stop(input_stream);
-
- /* access after stop should not happen, but lock just in case and to appease sanitization tools */
- std::lock_guard<std::mutex> lock(user_data->user_state_mutex);
- std::vector<double> & output_frames = user_data->output_frames;
- std::vector<double> & input_frames = user_data->input_frames;
- ASSERT_LE(output_frames.size(), input_frames.size())
- << "#Output frames should be less or equal to #input frames";
-
- size_t phase = find_phase(user_data->output_frames, user_data->input_frames, NUM_FRAMES_TO_OUTPUT);
-
- /* extract vectors of just the relevant signal from output and input */
- auto output_frames_signal_start = output_frames.begin();
- auto output_frames_signal_end = output_frames.begin() + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_output_frames(output_frames_signal_start, output_frames_signal_end);
- auto input_frames_signal_start = input_frames.begin() + phase;
- auto input_frames_signal_end = input_frames.begin() + phase + NUM_FRAMES_TO_OUTPUT;
- std::vector<double> trimmed_input_frames(input_frames_signal_start, input_frames_signal_end);
-
- compare_signals(trimmed_output_frames, trimmed_input_frames);
-}
-
-TEST(cubeb, loopback_device_selection)
-{
- run_loopback_device_selection_test(true);
- run_loopback_device_selection_test(false);
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-09 23:20:18 +0000