| /* |
| ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| ** |
| ** This program is free software; you can redistribute it and/or modify |
| ** it under the terms of the GNU General Public License as published by |
| ** the Free Software Foundation; either version 2 of the License, or |
| ** (at your option) any later version. |
| ** |
| ** This program is distributed in the hope that it will be useful, |
| ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ** GNU General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU General Public License |
| ** along with this program; if not, write to the Free Software |
| ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <samplerate.h> |
| |
| #include "util.h" |
| |
| #define BUFFER_LEN 2048 |
| #define CB_READ_LEN 256 |
| |
| static void process_reset_test (int converter) ; |
| static void callback_reset_test (int converter) ; |
| |
| static float data_one [BUFFER_LEN] ; |
| static float data_zero [BUFFER_LEN] ; |
| |
| int |
| main (void) |
| { |
| puts ("") ; |
| |
| process_reset_test (SRC_ZERO_ORDER_HOLD) ; |
| process_reset_test (SRC_LINEAR) ; |
| process_reset_test (SRC_SINC_FASTEST) ; |
| |
| callback_reset_test (SRC_ZERO_ORDER_HOLD) ; |
| callback_reset_test (SRC_LINEAR) ; |
| callback_reset_test (SRC_SINC_FASTEST) ; |
| |
| puts ("") ; |
| |
| return 0 ; |
| } /* main */ |
| |
| static void |
| process_reset_test (int converter) |
| { static float output [BUFFER_LEN] ; |
| |
| SRC_STATE *src_state ; |
| SRC_DATA src_data ; |
| int k, error ; |
| |
| printf ("\tprocess_reset_test (%-28s) ....... ", src_get_name (converter)) ; |
| fflush (stdout) ; |
| |
| for (k = 0 ; k < BUFFER_LEN ; k++) |
| { data_one [k] = 1.0 ; |
| data_zero [k] = 0.0 ; |
| } ; |
| |
| /* Get a converter. */ |
| if ((src_state = src_new (converter, 1, &error)) == NULL) |
| { printf ("\n\nLine %d : src_new() failed : %s.\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Process a bunch of 1.0 valued samples. */ |
| src_data.data_in = data_one ; |
| src_data.data_out = output ; |
| src_data.input_frames = BUFFER_LEN ; |
| src_data.output_frames = BUFFER_LEN ; |
| src_data.src_ratio = 0.9 ; |
| src_data.end_of_input = 1 ; |
| |
| if ((error = src_process (src_state, &src_data)) != 0) |
| { printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Reset the state of the converter.*/ |
| src_reset (src_state) ; |
| |
| /* Now process some zero data. */ |
| src_data.data_in = data_zero ; |
| src_data.data_out = output ; |
| src_data.input_frames = BUFFER_LEN ; |
| src_data.output_frames = BUFFER_LEN ; |
| src_data.src_ratio = 0.9 ; |
| src_data.end_of_input = 1 ; |
| |
| if ((error = src_process (src_state, &src_data)) != 0) |
| { printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Finally make sure that the output data is zero ie reset was sucessful. */ |
| for (k = 0 ; k < BUFFER_LEN / 2 ; k++) |
| if (output [k] != 0.0) |
| { printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n", __LINE__, k, output [k]) ; |
| exit (1) ; |
| } ; |
| |
| /* Make sure that this function has been exported. */ |
| src_set_ratio (src_state, 1.0) ; |
| |
| /* Delete converter. */ |
| src_state = src_delete (src_state) ; |
| |
| puts ("ok") ; |
| } /* process_reset_test */ |
| |
| /*============================================================================== |
| */ |
| |
| typedef struct |
| { int channels ; |
| long count, total ; |
| float *data ; |
| } TEST_CB_DATA ; |
| |
| static long |
| test_callback_func (void *cb_data, float **data) |
| { TEST_CB_DATA *pcb_data ; |
| |
| long frames ; |
| |
| if ((pcb_data = cb_data) == NULL) |
| return 0 ; |
| |
| if (data == NULL) |
| return 0 ; |
| |
| if (pcb_data->total - pcb_data->count > 0) |
| frames = pcb_data->total - pcb_data->count ; |
| else |
| frames = 0 ; |
| |
| *data = pcb_data->data + pcb_data->count ; |
| pcb_data->count += frames ; |
| |
| return frames ; |
| } /* test_callback_func */ |
| |
| static void |
| callback_reset_test (int converter) |
| { static TEST_CB_DATA test_callback_data ; |
| |
| static float output [BUFFER_LEN] ; |
| |
| SRC_STATE *src_state ; |
| |
| double src_ratio = 1.1 ; |
| long read_count, read_total ; |
| int k, error ; |
| |
| printf ("\tcallback_reset_test (%-28s) ....... ", src_get_name (converter)) ; |
| fflush (stdout) ; |
| |
| for (k = 0 ; k < ARRAY_LEN (data_one) ; k++) |
| { data_one [k] = 1.0 ; |
| data_zero [k] = 0.0 ; |
| } ; |
| |
| if ((src_state = src_callback_new (test_callback_func, converter, 1, &error, &test_callback_data)) == NULL) |
| { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Process a bunch of 1.0 valued samples. */ |
| test_callback_data.channels = 1 ; |
| test_callback_data.count = 0 ; |
| test_callback_data.total = ARRAY_LEN (data_one) ; |
| test_callback_data.data = data_one ; |
| |
| read_total = 0 ; |
| do |
| { read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ; |
| read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ; |
| read_total += read_count ; |
| } |
| while (read_count > 0) ; |
| |
| /* Check for errors. */ |
| if ((error = src_error (src_state)) != 0) |
| { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Reset the state of the converter.*/ |
| src_reset (src_state) ; |
| |
| /* Process a bunch of 0.0 valued samples. */ |
| test_callback_data.channels = 1 ; |
| test_callback_data.count = 0 ; |
| test_callback_data.total = ARRAY_LEN (data_zero) ; |
| test_callback_data.data = data_zero ; |
| |
| /* Now process some zero data. */ |
| read_total = 0 ; |
| do |
| { read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ; |
| read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ; |
| read_total += read_count ; |
| } |
| while (read_count > 0) ; |
| |
| /* Check for errors. */ |
| if ((error = src_error (src_state)) != 0) |
| { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ; |
| exit (1) ; |
| } ; |
| |
| /* Finally make sure that the output data is zero ie reset was sucessful. */ |
| for (k = 0 ; k < BUFFER_LEN / 2 ; k++) |
| if (output [k] != 0.0) |
| { printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n\n", __LINE__, k, output [k]) ; |
| save_oct_float ("output.dat", data_one, ARRAY_LEN (data_one), output, ARRAY_LEN (output)) ; |
| exit (1) ; |
| } ; |
| |
| /* Make sure that this function has been exported. */ |
| src_set_ratio (src_state, 1.0) ; |
| |
| /* Delete converter. */ |
| src_state = src_delete (src_state) ; |
| |
| puts ("ok") ; |
| } /* callback_reset_test */ |
| |
| |