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 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 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 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_disable_plc(); 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