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btstack/test/hfp/cvsd_plc_test.c
Matthias Ringwald 37bb4f7b91 test/hfp: fix build
2021-04-08 12:24:22 +02:00

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#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include "CppUTest/TestHarness.h"
#include "CppUTest/CommandLineTestRunner.h"
#include "classic/btstack_cvsd_plc.h"
#include "wav_util.h"
const int audio_samples_per_frame = 60;
static int16_t audio_frame_in[audio_samples_per_frame];
// static int16_t test_data[][audio_samples_per_frame] = {
// { 0x05, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
// { 0xff, 0xff, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x05 },
// { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05 },
// { 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
// };
static btstack_cvsd_plc_state_t plc_state;
// input signal: pre-computed sine wave, 160 Hz at 16000 kHz
static const int16_t sine_int16[] = {
0, 2057, 4107, 6140, 8149, 10126, 12062, 13952, 15786, 17557,
19260, 20886, 22431, 23886, 25247, 26509, 27666, 28714, 29648, 30466,
31163, 31738, 32187, 32509, 32702, 32767, 32702, 32509, 32187, 31738,
31163, 30466, 29648, 28714, 27666, 26509, 25247, 23886, 22431, 20886,
19260, 17557, 15786, 13952, 12062, 10126, 8149, 6140, 4107, 2057,
0, -2057, -4107, -6140, -8149, -10126, -12062, -13952, -15786, -17557,
-19260, -20886, -22431, -23886, -25247, -26509, -27666, -28714, -29648, -30466,
-31163, -31738, -32187, -32509, -32702, -32767, -32702, -32509, -32187, -31738,
-31163, -30466, -29648, -28714, -27666, -26509, -25247, -23886, -22431, -20886,
-19260, -17557, -15786, -13952, -12062, -10126, -8149, -6140, -4107, -2057,
};
static int count_equal_samples(int16_t * packet, uint16_t size){
int count = 0;
int temp_count = 1;
int i;
for (i = 0; i < size-1; i++){
if (packet[i] == packet[i+1]){
temp_count++;
continue;
}
if (count < temp_count){
count = temp_count;
}
temp_count = 1;
}
if (temp_count > count + 1){
count = temp_count;
}
return count;
}
// @assumption frame len 24 samples
static int bad_frame(int16_t * frame, uint16_t size){
return count_equal_samples(frame, size) > audio_samples_per_frame - 4;
}
static void btstack_cvsd_plc_mark_bad_frame(btstack_cvsd_plc_state_t * state, int16_t * in, uint16_t size, int16_t * out){
state->frame_count++;
if (bad_frame(in,size)){
memcpy(out, in, size * 2);
if (state->good_frames_nr > CVSD_LHIST/audio_samples_per_frame){
memset(out, 0x33, size * 2);
state->bad_frames_nr++;
}
} else {
memcpy(out, in, size);
state->good_frames_nr++;
if (state->good_frames_nr == 1){
printf("First good frame at index %d\n", state->frame_count-1);
}
}
}
static int phase = 0;
static void create_sine_wave_int16_data(int num_samples, int16_t * data){
int i;
for (i=0; i < num_samples; i++){
data[i] = sine_int16[phase++] * 90/100;
phase++;
if (phase >= (sizeof(sine_int16) / sizeof(int16_t))){
phase = 0;
}
}
}
// static int count_equal_bytes(int16_t * packet, uint16_t size){
// int count = 0;
// int temp_count = 1;
// int i;
// for (i = 0; i < size-1; i++){
// if (packet[i] == packet[i+1]){
// temp_count++;
// continue;
// }
// if (count < temp_count){
// count = temp_count;
// }
// temp_count = 1;
// }
// if (temp_count > count + 1){
// count = temp_count;
// }
// return count;
// }
static void create_sine_wav(const char * out_filename){
btstack_cvsd_plc_init(&plc_state);
wav_writer_open(out_filename, 1, 8000);
int i;
for (i=0; i<2000; i++){
create_sine_wave_int16_data(audio_samples_per_frame, audio_frame_in);
wav_writer_write_int16(audio_samples_per_frame, audio_frame_in);
}
wav_writer_close();
}
static int introduce_bad_frames_to_wav_file(const char * in_filename, const char * out_filename, int corruption_step){
btstack_cvsd_plc_init(&plc_state);
wav_writer_open(out_filename, 1, 8000);
wav_reader_open(in_filename);
int total_corruption_times = 0;
int fc = 0;
int start_corruption = 0;
while (wav_reader_read_int16(audio_samples_per_frame, audio_frame_in) == 0){
if (corruption_step > 0 && fc >= corruption_step && fc%corruption_step == 0){
printf("corrupt fc %d, corruption_step %d\n", fc, corruption_step);
start_corruption = 1;
}
if (start_corruption > 0 && start_corruption < 4){
memset(audio_frame_in, 50, audio_samples_per_frame * 2);
start_corruption++;
}
if (start_corruption > 4){
start_corruption = 0;
total_corruption_times++;
// printf("corupted 3 frames\n");
}
wav_writer_write_int16(audio_samples_per_frame, audio_frame_in);
fc++;
}
wav_reader_close();
wav_writer_close();
return total_corruption_times;
}
static void process_wav_file_with_plc(const char * in_filename, const char * out_filename){
// printf("\nProcess %s -> %s\n", in_filename, out_filename);
btstack_cvsd_plc_init(&plc_state);
wav_writer_open(out_filename, 1, 8000);
wav_reader_open(in_filename);
while (wav_reader_read_int16(audio_samples_per_frame, audio_frame_in) == 0){
int16_t audio_frame_out[audio_samples_per_frame];
btstack_cvsd_plc_process_data(&plc_state, false, audio_frame_in, audio_samples_per_frame, audio_frame_out);
wav_writer_write_int16(audio_samples_per_frame, audio_frame_out);
}
wav_reader_close();
wav_writer_close();
btstack_cvsd_dump_statistics(&plc_state);
}
void mark_bad_frames_wav_file(const char * in_filename, const char * out_filename);
void mark_bad_frames_wav_file(const char * in_filename, const char * out_filename){
// printf("\nMark bad frame %s -> %s\n", in_filename, out_filename);
btstack_cvsd_plc_init(&plc_state);
CHECK_EQUAL(wav_writer_open(out_filename, 1, 8000), 0);
CHECK_EQUAL(wav_reader_open(in_filename), 0);
while (wav_reader_read_int16(audio_samples_per_frame, audio_frame_in) == 0){
int16_t audio_frame_out[audio_samples_per_frame];
btstack_cvsd_plc_mark_bad_frame(&plc_state, audio_frame_in, audio_samples_per_frame, audio_frame_out);
wav_writer_write_int16(audio_samples_per_frame, audio_frame_out);
}
wav_reader_close();
wav_writer_close();
btstack_cvsd_dump_statistics(&plc_state);
}
TEST_GROUP(CVSD_PLC){
};
static void fprintf_array_int16(FILE * oct_file, char * name, int data_len, int16_t * data){
fprintf(oct_file, "%s = [", name);
int i;
for (i = 0; i < data_len - 1; i++){
fprintf(oct_file, "%d, ", data[i]);
}
fprintf(oct_file, "%d", data[i]);
fprintf(oct_file, "%s", "];\n");
}
static void fprintf_plot_history(FILE * oct_file, char * name, int data_len, int16_t * data){
fprintf_array_int16(oct_file, name, CVSD_LHIST, plc_state.hist);
fprintf(oct_file, "y = [min(%s):1000:max(%s)];\n", name, name);
fprintf(oct_file, "x = zeros(1, size(y,2));\n");
fprintf(oct_file, "b = [0:500];\n");
int pos = CVSD_FS;
fprintf(oct_file, "shift_x = x + %d;\n", pos);
pos = CVSD_LHIST - 1;
fprintf(oct_file, "lhist_x = x + %d;\n", pos);
pos += CVSD_OLAL;
fprintf(oct_file, "lhist_olal1_x = x + %d;\n", pos);
pos += CVSD_FS - CVSD_OLAL;
fprintf(oct_file, "lhist_fs_x = x + %d;\n", pos);
pos += CVSD_OLAL;
fprintf(oct_file, "lhist_olal2_x = x + %d;\n", pos);
pos += CVSD_RT;
fprintf(oct_file, "lhist_rt_x = x + %d;\n", pos);
fprintf(oct_file, "pattern_window_x = x + %d;\n", CVSD_LHIST - CVSD_M);
fprintf(oct_file, "hold on;\n");
fprintf(oct_file, "plot(%s); \n", name);
fprintf(oct_file, "plot(shift_x, y, 'k--'); \n");
fprintf(oct_file, "plot(lhist_x, y, 'k'); \n");
fprintf(oct_file, "plot(lhist_olal1_x, y, 'k'); \n");
fprintf(oct_file, "plot(lhist_fs_x, y, 'k'); \n");
fprintf(oct_file, "plot(lhist_olal2_x, y, 'k'); \n");
fprintf(oct_file, "plot(lhist_rt_x, y, 'k');\n");
int x0 = plc_state.bestlag;
int x1 = plc_state.bestlag + CVSD_M - 1;
fprintf(oct_file, "plot(b(%d:%d), %s(%d:%d), 'rd'); \n", x0, x1, name, x0, x1);
x0 = plc_state.bestlag + CVSD_M ;
x1 = plc_state.bestlag + CVSD_M + audio_samples_per_frame - 1;
fprintf(oct_file, "plot(b(%d:%d), %s(%d:%d), 'kd'); \n", x0, x1, name, x0, x1);
x0 = CVSD_LHIST - CVSD_M;
x1 = CVSD_LHIST - 1;
fprintf(oct_file, "plot(b(%d:%d), %s(%d:%d), 'rd'); \n", x0, x1, name, x0, x1);
fprintf(oct_file, "plot(pattern_window_x, y, 'g'); \n");
}
TEST(CVSD_PLC, CountEqBytes){
// init cvsd_fs in plc_state
float val, sf;
int i, x0, x1;
char * name;
BTSTACK_CVSD_PLC_SAMPLE_FORMAT out[CVSD_FS];
BTSTACK_CVSD_PLC_SAMPLE_FORMAT hist[CVSD_LHIST+CVSD_FS+CVSD_RT+CVSD_OLAL];
FILE * oct_file = fopen("/Users/mringwal/octave/plc.m", "wb");
if (!oct_file) return;
fprintf(oct_file, "%s", "1;\n\n");
int hist_len = sizeof(plc_state.hist)/2;
create_sine_wave_int16_data(CVSD_LHIST, hist);
memset(plc_state.hist, hist[CVSD_LHIST-1], sizeof(plc_state.hist));
memcpy(plc_state.hist, hist, CVSD_LHIST*2);
// Perform pattern matching to find where to replicate
plc_state.bestlag = btstack_cvsd_plc_pattern_match(plc_state.hist);
name = (char *) "hist0";
fprintf_plot_history(oct_file, name, hist_len, plc_state.hist);
plc_state.bestlag += CVSD_M;
sf = btstack_cvsd_plc_amplitude_match(&plc_state, audio_samples_per_frame, plc_state.hist, plc_state.bestlag);
for (i=0;i<CVSD_OLAL;i++){
val = sf*plc_state.hist[plc_state.bestlag+i];
plc_state.hist[CVSD_LHIST+i] = btstack_cvsd_plc_crop_sample(val);
}
name = (char *) "olal1";
x0 = CVSD_LHIST;
x1 = x0 + CVSD_OLAL - 1;
fprintf_array_int16(oct_file, name, CVSD_OLAL, plc_state.hist+x0);
fprintf(oct_file, "plot(b(%d:%d), %s, 'b.'); \n", x0, x1, name);
for (;i<CVSD_FS;i++){
val = sf*plc_state.hist[plc_state.bestlag+i];
plc_state.hist[CVSD_LHIST+i] = btstack_cvsd_plc_crop_sample(val);
}
name = (char *)"fs_minus_olal";
x0 = x1 + 1;
x1 = x0 + CVSD_FS - CVSD_OLAL - 1;
fprintf_array_int16(oct_file, name, CVSD_FS - CVSD_OLAL, plc_state.hist+x0);
fprintf(oct_file, "plot(b(%d:%d), %s, 'b.'); \n", x0, x1, name);
for (;i<CVSD_FS+CVSD_OLAL;i++){
float left = sf*plc_state.hist[plc_state.bestlag+i];
float right = plc_state.hist[plc_state.bestlag+i];
val = left*btstack_cvsd_plc_rcos(i-CVSD_FS) + right*btstack_cvsd_plc_rcos(CVSD_OLAL-1-i+CVSD_FS);
plc_state.hist[CVSD_LHIST+i] = btstack_cvsd_plc_crop_sample(val);
}
name = (char *)"olal2";
x0 = x1 + 1;
x1 = x0 + CVSD_OLAL - 1;
fprintf_array_int16(oct_file, name, CVSD_OLAL, plc_state.hist+x0);
fprintf(oct_file, "plot(b(%d:%d), %s, 'b.'); \n", x0, x1, name);
for (;i<CVSD_FS+CVSD_RT+CVSD_OLAL;i++){
plc_state.hist[CVSD_LHIST+i] = plc_state.hist[plc_state.bestlag+i];
}
name = (char *)"rt";
x0 = x1 + 1;
x1 = x0 + CVSD_RT - 1;
fprintf_array_int16(oct_file, name, CVSD_RT, plc_state.hist+x0);
fprintf(oct_file, "plot(b(%d:%d), %s, 'b.'); \n", x0, x1, name);
for (i=0;i<CVSD_FS;i++){
out[i] = plc_state.hist[CVSD_LHIST+i];
}
name = (char *)"out";
x0 = CVSD_LHIST;
x1 = x0 + CVSD_FS - 1;
fprintf_array_int16(oct_file, name, CVSD_FS, plc_state.hist+x0);
fprintf(oct_file, "plot(b(%d:%d), %s, 'cd'); \n", x0, x1, name);
// shift the history buffer
for (i=0;i<CVSD_LHIST+CVSD_RT+CVSD_OLAL;i++){
plc_state.hist[i] = plc_state.hist[i+CVSD_FS];
}
fclose(oct_file);
}
// TEST(CVSD_PLC, CountEqBytes){
// CHECK_EQUAL(23, count_equal_bytes(test_data[0],24));
// CHECK_EQUAL(11, count_equal_bytes(test_data[1],24));
// CHECK_EQUAL(12, count_equal_bytes(test_data[2],24));
// CHECK_EQUAL(23, count_equal_bytes(test_data[3],24));
// }
// TEST(CVSD_PLC, TestLiveWavFile){
// int corruption_step = 10;
// introduce_bad_frames_to_wav_file("data/sco_input-16bit.wav", "results/sco_input.wav", 0);
// introduce_bad_frames_to_wav_file("data/sco_input-16bit.wav", "results/sco_input_with_bad_frames.wav", corruption_step);
// mark_bad_frames_wav_file("results/sco_input.wav", "results/sco_input_detected_frames.wav");
// process_wav_file_with_plc("results/sco_input.wav", "results/sco_input_after_plc.wav");
// process_wav_file_with_plc("results/sco_input_with_bad_frames.wav", "results/sco_input_with_bad_frames_after_plc.wav");
// }
// TEST(CVSD_PLC, TestFanfareFile){
// int corruption_step = 10;
// introduce_bad_frames_to_wav_file("data/fanfare_mono.wav", "results/fanfare_mono.wav", 0);
// introduce_bad_frames_to_wav_file("results/fanfare_mono.wav", "results/fanfare_mono_with_bad_frames.wav", corruption_step);
// mark_bad_frames_wav_file("results/fanfare_mono.wav", "results/fanfare_mono_detected_frames.wav");
// process_wav_file_with_plc("results/fanfare_mono.wav", "results/fanfare_mono_after_plc.wav");
// process_wav_file_with_plc("results/fanfare_mono_with_bad_frames.wav", "results/fanfare_mono_with_bad_frames_after_plc.wav");
// }
TEST(CVSD_PLC, TestSineWave){
int corruption_step = 600;
create_sine_wav("results/sine_test.wav");
int total_corruption_times = introduce_bad_frames_to_wav_file("results/sine_test.wav", "results/sine_test_with_bad_frames.wav", corruption_step);
printf("corruptions %d\n", total_corruption_times);
process_wav_file_with_plc("results/sine_test.wav", "results/sine_test_after_plc.wav");
process_wav_file_with_plc("results/sine_test_with_bad_frames.wav", "results/sine_test_with_bad_frames_after_plc.wav");
}
int main (int argc, const char * argv[]){
return CommandLineTestRunner::RunAllTests(argc, argv);
}
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