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 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