1 /*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the copyright holders nor the names of
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * 4. Any redistribution, use, or modification is done solely for
17 * personal benefit and not for any commercial purpose or for
18 * monetary gain.
19 *
20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Please inquire about commercial licensing options at
34 * [email protected]
35 *
36 */
37
38 // *****************************************************************************
39 //
40 // SBC encoder tests
41 //
42 // *****************************************************************************
43
44 #include "btstack_config.h"
45
46 #include <stdint.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <string.h>
50 #include <fcntl.h>
51 #include <unistd.h>
52
53 #include "btstack.h"
54
55 #include "hfp_msbc.h"
56 #include "btstack_sbc.h"
57 #include "wav_util.h"
58
59 static int16_t read_buffer[8*16*2];
60 static uint8_t output_buffer[24];
61
main(int argc,const char * argv[])62 int main (int argc, const char * argv[]){
63 if (argc < 3){
64 printf("Usage: %s WAV_FILE mSBC_FILE\n", argv[0]);
65 return -1;
66 }
67
68 const char * wav_filename = argv[1];
69 const char * sbc_filename = argv[2];
70
71 if (wav_reader_open(wav_filename) != 0) {
72 printf("Can't open file %s", wav_filename);
73 return -1;
74 }
75
76 FILE * sbc_fd = fopen(sbc_filename, "wb");
77 if (!sbc_fd) {
78 printf("Can't open file %s", sbc_filename);
79 return -1;
80 }
81
82 hfp_msbc_init();
83 int num_samples = hfp_msbc_num_audio_samples_per_frame();
84
85 while (1){
86 if (hfp_msbc_can_encode_audio_frame_now()){
87 int error = wav_reader_read_int16(num_samples, read_buffer);
88 if (error) break;
89
90 hfp_msbc_encode_audio_frame(read_buffer);
91 }
92 if (hfp_msbc_num_bytes_in_stream() >= sizeof(output_buffer)){
93 hfp_msbc_read_from_stream(output_buffer, sizeof(output_buffer));
94 fwrite(output_buffer, 1, sizeof(output_buffer), sbc_fd);
95 }
96 }
97
98 printf("Done\n");
99 wav_reader_close();
100 fclose(sbc_fd);
101 return 0;
102 }
103
104