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
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32 *
33 * Please inquire about commercial licensing options at
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36 */
37
38 // *****************************************************************************
39 //
40 // SBC decoder 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
51 #include "btstack.h"
52 #include "classic/btstack_sbc.h"
53 #include "data_sine_stereo_sbc.h"
54
55 #define SAMPLE_RATE 44100
56
57 static int total_num_samples = 0;
58 static int frame_count = 0;
59
60 #define NUM_SAMPLES 128
61 #define NUM_CHANNELS 2
62 #define BYTES_PER_SAMPLE 2
63
64 static uint16_t audio_samples0[NUM_SAMPLES*2];
65 static uint16_t audio_samples1[NUM_SAMPLES*2];
66 static volatile int playback_buffer;
67
handle_pcm_data(int16_t * data,int num_samples,int num_channels,int sample_rate,void * context)68 static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){
69 printf("Samples: num_samples %u, num_channels %u, sample_rate %u\n", num_samples, num_channels, sample_rate);
70 // printf_hexdump(data, num_samples * num_channels * 2);
71 int i;
72 for (i=0;i<num_channels*num_samples;i += 2){
73 if ((i%24) == 0) printf("\n");
74 printf ("%12d ", data[i]);
75 }
76 printf("\n");
77
78 total_num_samples+=num_samples*num_channels;
79 frame_count++;
80 }
81
btstack_main(int argc,const char * argv[])82 int btstack_main (int argc, const char * argv[]){
83 (void) argc;
84 (void) argv;
85
86
87 btstack_sbc_mode_t mode = SBC_MODE_STANDARD;
88 btstack_sbc_decoder_state_t state;
89 btstack_sbc_decoder_init(&state, mode, &handle_pcm_data, NULL);
90 btstack_sbc_decoder_test_set_plc_enabled(0);
91 uint32_t t_start = btstack_run_loop_get_time_ms();
92 playback_buffer = 1;
93 uint32_t offset = 0;
94
95 uint32_t sbc_len = data_sine_stereo_sbc_len;
96 uint8_t * sbc_data = data_sine_stereo_sbc;
97
98 btstack_sbc_decoder_process_data(&state, 0, &sbc_data[offset], 74);
99 offset += 74;
100
101 while (1){
102
103 btstack_sbc_decoder_process_data(&state, 0, &sbc_data[offset], 74);
104 offset += 74;
105
106 if (offset >= sbc_len){
107 offset = 0;
108 }
109
110 while (playback_buffer == 0){
111 __asm__("wfe");
112 }
113
114 btstack_sbc_decoder_process_data(&state, 0, &sbc_data[offset], 74);
115 offset += 74;
116
117 if (offset >= sbc_len){
118 offset = 0;
119 }
120
121 while (playback_buffer == 1){
122 __asm__("wfe");
123 }
124
125 }
126 #if 0
127 uint32_t t_end = btstack_run_loop_get_time_ms();
128 printf("Decoding done. Processed %d frames:\n - %d good\n - %d bad\n - %d zero frames\n", frame_count, state.good_frames_nr, state.bad_frames_nr, state.zero_frames_nr);
129 printf("Time for 100 frames %u ms\n", t_end - t_start); // frame len 74 in this sbc test sample
130 #endif
131 return 0;
132 }
133