ref: 6308ce1a99c2c202cddc05e309bbb3bee7be73d2
dir: /tests/clone_test.c/
/* ** Copyright (c) 2002-2016, Erik de Castro Lopo <[email protected]> ** All rights reserved. ** ** This code is released under 2-clause BSD license. Please see the ** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <samplerate.h> #include "util.h" #define BUFFER_LEN (1 << 16) #define NUM_CHANNELS 2 #define FRAMES_PER_PASS (BUFFER_LEN >> 1) static void clone_test (int converter) { static float input_serial [BUFFER_LEN * NUM_CHANNELS], input_interleaved [BUFFER_LEN * NUM_CHANNELS] ; static float output [BUFFER_LEN * NUM_CHANNELS], output_cloned [BUFFER_LEN * NUM_CHANNELS] ; double sine_freq ; SRC_STATE* src_state ; SRC_STATE* src_state_cloned ; SRC_DATA src_data, src_data_cloned ; int error, frame, ch, index ; printf (" clone_test (%-28s) ....... ", src_get_name (converter)) ; fflush (stdout) ; memset (input_serial, 0, sizeof (input_serial)) ; memset (input_interleaved, 0, sizeof (input_interleaved)) ; memset (output, 0, sizeof (output)) ; memset (output_cloned, 0, sizeof (output_cloned)) ; /* Fill input buffer with an n-channel interleaved sine wave */ sine_freq = 0.0111 ; gen_windowed_sines (1, &sine_freq, 1.0, input_serial, BUFFER_LEN) ; gen_windowed_sines (1, &sine_freq, 1.0, input_serial + BUFFER_LEN, BUFFER_LEN) ; interleave_data (input_serial, input_interleaved, BUFFER_LEN, NUM_CHANNELS) ; if ((src_state = src_new (converter, NUM_CHANNELS, &error)) == NULL) { printf ("\n\nLine %d : src_new() failed : %s\n\n", __LINE__, src_strerror (error)) ; exit (1) ; } ; /* Perform initial pass using first half of buffer so that src_state has non-trivial state */ src_data.src_ratio = 1.1 ; src_data.input_frames = FRAMES_PER_PASS ; src_data.output_frames = FRAMES_PER_PASS ; src_data.data_in = input_interleaved ; src_data.data_out = output ; src_data.output_frames_gen = 0 ; if ((error = src_process (src_state, &src_data))) { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; printf (" src_data.input_frames : %ld\n", src_data.input_frames) ; printf (" src_data.output_frames : %ld\n\n", src_data.output_frames) ; exit (1) ; } ; /* Clone handle */ if ((src_state_cloned = src_clone (src_state, &error)) == NULL) { printf ("\n\nLine %d : src_clone() failed : %s\n\n", __LINE__, src_strerror (error)) ; exit (1) ; } ; /* Process second half of buffer with both handles */ src_data.data_in = input_interleaved + FRAMES_PER_PASS ; src_data_cloned = src_data ; src_data_cloned.data_out = output_cloned ; if ((error = src_process (src_state, &src_data))) { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; printf (" src_data.input_frames : %ld\n", src_data.input_frames) ; printf (" src_data.output_frames : %ld\n\n", src_data.output_frames) ; exit (1) ; } ; if ((error = src_process (src_state_cloned, &src_data_cloned))) { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; printf (" src_data.input_frames : %ld\n", src_data.input_frames) ; printf (" src_data.output_frames : %ld\n\n", src_data.output_frames) ; exit (1) ; } ; /* Check that both handles generated the same number of output frames */ if (src_data.output_frames_gen != src_data_cloned.output_frames_gen) { printf ("\n\nLine %d : cloned output_frames_gen (%ld) != original (%ld)\n\n", __LINE__, src_data_cloned.output_frames_gen, src_data.output_frames_gen) ; exit (1) ; } ; for (ch = 0 ; ch < NUM_CHANNELS ; ch++) { for (frame = 0 ; frame < src_data.output_frames_gen ; frame++) { index = ch * NUM_CHANNELS + ch ; if (output [index] != output_cloned [index]) { printf ("\n\nLine %d : cloned data does not equal original data at channel %d, frame %d\n\n", __LINE__, ch, frame) ; exit (1) ; } ; } ; } ; src_state = src_delete (src_state) ; src_state_cloned = src_delete (src_state_cloned) ; puts ("ok") ; } /* clone_test */ int main (void) { puts(""); clone_test (SRC_ZERO_ORDER_HOLD) ; clone_test (SRC_LINEAR) ; clone_test (SRC_SINC_FASTEST) ; puts(""); return 0 ; } /* main */