Rory Hand / Mbed 2 deprecated NotchingDemo

old demo that i want to try in mbed studio

Dependencies:   mbed SDFileSystem_Copy_of_mbed_version I2S

NotchingDemo.cpp@61:212d2db45c56, 2019-09-27 (annotated)

Committer:
roryhand
Date:
Fri Sep 27 22:06:43 2019 +0000
Branch:
LargeFile_Tests
Revision:
61:212d2db45c56
Parent:
60:36df2997de3d
Child:
63:a8c1971d3d42
WIP - adding in the stuff to do switching between files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
roryhand 1:aac37edee302 1
roryhand 0:e89d7a0bfa3b 2 // 24/03/2018 update - I appear to be able to address the device and write something, as I am getting an ACK returned from the i2c write() function.
roryhand 0:e89d7a0bfa3b 3 //however if i use the write function with 4 arguments (as opposed to just 1 argument) then it doesnt work
roryhand 0:e89d7a0bfa3b 4 //only works with the 1 argument version!!!
roryhand 0:e89d7a0bfa3b 5
roryhand 0:e89d7a0bfa3b 6
roryhand 0:e89d7a0bfa3b 7 //THIS VERSION WORKED, CHANGED SOME THINGS, THEN CHANGED THEM BACK. NOW IT NO LONGER WORKS!!!!
roryhand 0:e89d7a0bfa3b 8 #include "mbed.h"
roryhand 0:e89d7a0bfa3b 9 #include "math.h"
roryhand 1:aac37edee302 10 #include "I2S.h"
roryhand 1:aac37edee302 11 #include "SDFileSystem.h"
roryhand 0:e89d7a0bfa3b 12 #include "wm8731_Config_setup.h"
roryhand 0:e89d7a0bfa3b 13 #include "WOLFSON_config_consts.h"
roryhand 54:606a83fff291 14 //#include "BlockDevice.h"
roryhand 37:a563899ac0df 15 #include <string>
roryhand 0:e89d7a0bfa3b 16 #include <stdlib.h>
roryhand 27:a378f1f937ee 17 #include <fstream>
roryhand 27:a378f1f937ee 18 #include <iostream>
roryhand 0:e89d7a0bfa3b 19 #include <vector>
roryhand 0:e89d7a0bfa3b 20 #include <string>
roryhand 0:e89d7a0bfa3b 21 #define sample_freq 11025
roryhand 1:aac37edee302 22 #pragma import __use_two_region_memory
roryhand 54:606a83fff291 23 //BlockDevice *bd = BlockDevice::get_default_instance();
roryhand 54:606a83fff291 24 //#include "LittleFileSystem.h"
roryhand 54:606a83fff291 25 //LittleFileSystem fs("fs");
roryhand 54:606a83fff291 26
roryhand 0:e89d7a0bfa3b 27 DigitalOut myled(LED1);
roryhand 0:e89d7a0bfa3b 28 DigitalOut led2(LED2);
roryhand 0:e89d7a0bfa3b 29 DigitalOut led3(LED3);
roryhand 0:e89d7a0bfa3b 30 DigitalIn NotchUp(p16);
roryhand 38:3b4c05af5f36 31 DigitalIn NotchDown(p17);//check the pin!!! Dont know if this will actually work...
roryhand 0:e89d7a0bfa3b 32 InterruptIn Horn(p16);
roryhand 0:e89d7a0bfa3b 33 Ticker sampletick;
roryhand 45:0e8e1f2ec5d2 34
roryhand 0:e89d7a0bfa3b 35 Ticker TickFadeOut;
roryhand 0:e89d7a0bfa3b 36 Timer t;
roryhand 0:e89d7a0bfa3b 37 Timer t2;
roryhand 3:6169aeeaeeb4 38 Timer NotchTimer;
roryhand 27:a378f1f937ee 39 Timer timer_open;
roryhand 0:e89d7a0bfa3b 40
roryhand 0:e89d7a0bfa3b 41 Serial pc(USBTX, USBRX); // tx, rx //FOR DEBUGGING PROGRAM USING GNU SCREEN
roryhand 0:e89d7a0bfa3b 42 DigitalOut cs(p8);
roryhand 0:e89d7a0bfa3b 43 I2S i2s(I2S_TRANSMIT, p5, p6, p7);
roryhand 0:e89d7a0bfa3b 44 SDFileSystem sd(p11, p12, p13, p8, "sd"); // the new pinout that i am using
roryhand 0:e89d7a0bfa3b 45
roryhand 1:aac37edee302 46 typedef struct uFMT_STRUCT {
roryhand 1:aac37edee302 47 short comp_code;
roryhand 1:aac37edee302 48 short num_channels;
roryhand 1:aac37edee302 49 unsigned sample_rate;
roryhand 1:aac37edee302 50 unsigned avg_Bps;
roryhand 1:aac37edee302 51 short block_align;
roryhand 1:aac37edee302 52 short sig_bps;
roryhand 0:e89d7a0bfa3b 53 } FMT_STRUCT;
roryhand 0:e89d7a0bfa3b 54
roryhand 1:aac37edee302 55 typedef struct uNotch_STRUCT {
roryhand 1:aac37edee302 56 short Notch;
roryhand 1:aac37edee302 57 short NotchTransUp;
roryhand 1:aac37edee302 58 short NotchTransDown;
roryhand 1:aac37edee302 59 short NotchDirection;
roryhand 1:aac37edee302 60 } Notch_STRUCT;
roryhand 1:aac37edee302 61
roryhand 0:e89d7a0bfa3b 62 typedef struct uDATA_STRUCT {
roryhand 1:aac37edee302 63 unsigned subchunk2_ID;
roryhand 1:aac37edee302 64 unsigned subchunk2_size;
roryhand 1:aac37edee302 65 char * data_buf;
roryhand 1:aac37edee302 66 } DATA_STRUCT;
roryhand 0:e89d7a0bfa3b 67
roryhand 1:aac37edee302 68 typedef struct uWAV_FILE_STRUCT {
roryhand 1:aac37edee302 69 FILE *WavFile;
roryhand 1:aac37edee302 70 int id_number;
roryhand 1:aac37edee302 71 char *slice_buf;
roryhand 1:aac37edee302 72 int num_slices;
roryhand 1:aac37edee302 73 FMT_STRUCT FileFormat;
roryhand 1:aac37edee302 74 DATA_STRUCT FileData;
roryhand 0:e89d7a0bfa3b 75 } WAV_FILE_STRUCT;
roryhand 0:e89d7a0bfa3b 76
roryhand 0:e89d7a0bfa3b 77 /*typedef struct uWAV_FILE_STRUCT{
roryhand 1:aac37edee302 78 FILE* WavFile;
roryhand 1:aac37edee302 79
roryhand 1:aac37edee302 80
roryhand 0:e89d7a0bfa3b 81 }WAV_FILE_STRUCT;*/
roryhand 59:8e7c25a915a0 82
roryhand 59:8e7c25a915a0 83
roryhand 59:8e7c25a915a0 84
roryhand 59:8e7c25a915a0 85
roryhand 59:8e7c25a915a0 86
roryhand 59:8e7c25a915a0 87 class classSoundFile
roryhand 59:8e7c25a915a0 88 {
roryhand 59:8e7c25a915a0 89 public:
roryhand 59:8e7c25a915a0 90
roryhand 59:8e7c25a915a0 91 //add a class constructor at some point in the future (perform tests in visual studio)
roryhand 59:8e7c25a915a0 92 WAV_FILE_STRUCT FileInfo;
roryhand 59:8e7c25a915a0 93 short * data_sptr;
roryhand 59:8e7c25a915a0 94 string file_location;
roryhand 59:8e7c25a915a0 95 //classSoundFile(string filename);//this is the constructor
roryhand 59:8e7c25a915a0 96 //string filename;
roryhand 59:8e7c25a915a0 97 };
roryhand 58:a174e7a8f5f2 98 class classPositionIndicators
roryhand 57:0c76b15cabaf 99 {
roryhand 57:0c76b15cabaf 100 public:
roryhand 57:0c76b15cabaf 101 int notch1_indicator, notch2_indicator, notch3_indicator, notch4_indicator;
roryhand 57:0c76b15cabaf 102 int notch5_indicator, notch6_indicator, notch7_indicator, notch8_indicator;
roryhand 57:0c76b15cabaf 103 int notch1_start_pt, notch2_start_pt, notch3_start_pt, notch4_start_pt;
roryhand 57:0c76b15cabaf 104 int notch5_start_pt, notch6_start_pt, notch7_start_pt, notch8_start_pt;
roryhand 61:212d2db45c56 105
roryhand 61:212d2db45c56 106 int notch_start_pts [9];
roryhand 61:212d2db45c56 107 int notch_position_indicators[9];
roryhand 61:212d2db45c56 108 int notch_transitions_start_pts[15];
roryhand 61:212d2db45c56 109 int notch_transitions_position_indicators[15];
roryhand 61:212d2db45c56 110 int auxiliary_start_pts[5];
roryhand 61:212d2db45c56 111 int auxiliary_position_indicators[5];
roryhand 58:a174e7a8f5f2 112 classPositionIndicators()
roryhand 57:0c76b15cabaf 113 {
roryhand 57:0c76b15cabaf 114 notch1_start_pt = 44;
roryhand 57:0c76b15cabaf 115 notch2_start_pt = 220884+44;
roryhand 57:0c76b15cabaf 116 notch3_start_pt = notch2_start_pt+217698;
roryhand 57:0c76b15cabaf 117 notch4_start_pt = notch3_start_pt + 193060;
roryhand 57:0c76b15cabaf 118 notch5_start_pt = notch4_start_pt + 92010;
roryhand 57:0c76b15cabaf 119 notch6_start_pt = notch5_start_pt + 216642;
roryhand 57:0c76b15cabaf 120 notch7_start_pt = notch6_start_pt + 250316;
roryhand 61:212d2db45c56 121 notch8_start_pt = notch7_start_pt + 150152;
roryhand 57:0c76b15cabaf 122 notch1_indicator = notch1_start_pt;
roryhand 57:0c76b15cabaf 123 notch2_indicator = notch2_start_pt;
roryhand 57:0c76b15cabaf 124 notch3_indicator = notch3_start_pt;
roryhand 57:0c76b15cabaf 125 notch4_indicator = notch4_start_pt;
roryhand 57:0c76b15cabaf 126 notch5_indicator = notch5_start_pt;
roryhand 57:0c76b15cabaf 127 notch6_indicator = notch6_start_pt;
roryhand 57:0c76b15cabaf 128 notch7_indicator = notch7_start_pt;
roryhand 57:0c76b15cabaf 129 notch8_indicator = notch8_start_pt;
roryhand 61:212d2db45c56 130 notch_start_pts[1] = notch1_start_pt;
roryhand 61:212d2db45c56 131 notch_start_pts[2] = notch2_start_pt;
roryhand 61:212d2db45c56 132 notch_start_pts[3] = notch3_start_pt;
roryhand 61:212d2db45c56 133 notch_start_pts[4] = notch4_start_pt;
roryhand 61:212d2db45c56 134 notch_start_pts[5] = notch5_start_pt;
roryhand 61:212d2db45c56 135 notch_start_pts[6] = notch6_start_pt;
roryhand 61:212d2db45c56 136 notch_start_pts[7] = notch7_start_pt;
roryhand 61:212d2db45c56 137 notch_start_pts[8] = notch8_start_pt;
roryhand 61:212d2db45c56 138 notch_position_indicators[1] = notch1_indicator;
roryhand 61:212d2db45c56 139 notch_position_indicators[2] = notch2_indicator;
roryhand 61:212d2db45c56 140 notch_position_indicators[3] = notch3_indicator;
roryhand 61:212d2db45c56 141 notch_position_indicators[4] = notch4_indicator;
roryhand 61:212d2db45c56 142 notch_position_indicators[5] = notch5_indicator;
roryhand 61:212d2db45c56 143 notch_position_indicators[6] = notch6_indicator;
roryhand 61:212d2db45c56 144 notch_position_indicators[7] = notch7_indicator;
roryhand 61:212d2db45c56 145 notch_position_indicators[8] = notch8_indicator;
roryhand 57:0c76b15cabaf 146
roryhand 57:0c76b15cabaf 147 }
roryhand 57:0c76b15cabaf 148 };
roryhand 57:0c76b15cabaf 149
roryhand 54:606a83fff291 150 int OneOff = 0;
roryhand 38:3b4c05af5f36 151 int notch_flag = 0;
roryhand 0:e89d7a0bfa3b 152 int i = 0;
roryhand 0:e89d7a0bfa3b 153 int h = 0;
roryhand 0:e89d7a0bfa3b 154 short bufflen = 1;
roryhand 0:e89d7a0bfa3b 155 int buffer[1];
roryhand 1:aac37edee302 156 int AudioFormat, NumChannels, SampleRate, BitsPerSample ;
roryhand 0:e89d7a0bfa3b 157 char *slice_buf;
roryhand 0:e89d7a0bfa3b 158 short *data_sptr;
roryhand 0:e89d7a0bfa3b 159 short *data_sptr_horn;
roryhand 0:e89d7a0bfa3b 160 short *data_sptr_IdleN2;
roryhand 0:e89d7a0bfa3b 161 short * data_sptr_bell;
roryhand 0:e89d7a0bfa3b 162 short * data_sptr_N2;
roryhand 0:e89d7a0bfa3b 163 short * data_sptr_Flange;
roryhand 0:e89d7a0bfa3b 164 unsigned char *data_bptr;
roryhand 0:e89d7a0bfa3b 165 int *data_wptr;
roryhand 0:e89d7a0bfa3b 166 unsigned channel;
roryhand 45:0e8e1f2ec5d2 167 long slice, slice1, slice2, slice3, num_slices;
roryhand 0:e89d7a0bfa3b 168 int verbosity = 0;
roryhand 0:e89d7a0bfa3b 169 int verbosity2 = 0;
roryhand 0:e89d7a0bfa3b 170 int verbosity3 = 0;
roryhand 0:e89d7a0bfa3b 171 int verbosity4 = 0;
roryhand 0:e89d7a0bfa3b 172 int verbosity5 = 0;
roryhand 0:e89d7a0bfa3b 173 int interrupt_condition = 1;
roryhand 0:e89d7a0bfa3b 174 int sampling_freq = 11025;
roryhand 0:e89d7a0bfa3b 175 const int BufferLen = 2000;
roryhand 0:e89d7a0bfa3b 176 short Buffer1[BufferLen];
roryhand 0:e89d7a0bfa3b 177 short Buffer2[BufferLen];
roryhand 0:e89d7a0bfa3b 178 short place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 179 short place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 180
roryhand 3:6169aeeaeeb4 181
roryhand 3:6169aeeaeeb4 182 string FOLDER;
roryhand 3:6169aeeaeeb4 183 string RootFolder = "/sd/mydir/SoundDecoder/";
roryhand 3:6169aeeaeeb4 184 string filename[25];
roryhand 3:6169aeeaeeb4 185 classSoundFile Sound[22];
roryhand 3:6169aeeaeeb4 186
roryhand 0:e89d7a0bfa3b 187 volatile int flag1 = 1;
roryhand 0:e89d7a0bfa3b 188 volatile int flag2 = 0;
roryhand 0:e89d7a0bfa3b 189 volatile int flag3 = 1;
roryhand 0:e89d7a0bfa3b 190 volatile int flag4 = 0;
roryhand 0:e89d7a0bfa3b 191 int FLAGBUFF1 = 0;
roryhand 0:e89d7a0bfa3b 192 int FLAGBUFF2 = 0;
roryhand 0:e89d7a0bfa3b 193 int BellFlag = 0;
roryhand 0:e89d7a0bfa3b 194 int BellFlag2 = 0;
roryhand 0:e89d7a0bfa3b 195 int FadeFlag = 0;
roryhand 54:606a83fff291 196 int BlockFlag = 0;
roryhand 32:6ee488c97dcc 197 int FileSwitchFlag = 0;
roryhand 0:e89d7a0bfa3b 198
roryhand 0:e89d7a0bfa3b 199
roryhand 0:e89d7a0bfa3b 200 short value[1];
roryhand 59:8e7c25a915a0 201
roryhand 0:e89d7a0bfa3b 202 //long long slice_value;
roryhand 0:e89d7a0bfa3b 203 int slice_value[1];
roryhand 0:e89d7a0bfa3b 204
roryhand 0:e89d7a0bfa3b 205
roryhand 45:0e8e1f2ec5d2 206 FILE *wavfile1;
roryhand 45:0e8e1f2ec5d2 207 FILE *wavfile2;
roryhand 45:0e8e1f2ec5d2 208 FILE *wavfile3;
roryhand 45:0e8e1f2ec5d2 209
roryhand 45:0e8e1f2ec5d2 210 classSoundFile Sound1;
roryhand 45:0e8e1f2ec5d2 211 classSoundFile Sound2;
roryhand 45:0e8e1f2ec5d2 212 classSoundFile Sound3;
roryhand 45:0e8e1f2ec5d2 213
roryhand 0:e89d7a0bfa3b 214
roryhand 0:e89d7a0bfa3b 215 void isr()
roryhand 0:e89d7a0bfa3b 216 {
roryhand 54:606a83fff291 217 //timer_interrupt.start();
roryhand 1:aac37edee302 218 if(flag1 == 0) {
roryhand 0:e89d7a0bfa3b 219 value[0] = Buffer1[place_hold1]>>4;
roryhand 0:e89d7a0bfa3b 220 i2s.write(value,1);//Send next PWM value to amp
roryhand 0:e89d7a0bfa3b 221 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 222 if( (place_hold1 >= BufferLen)) {
roryhand 0:e89d7a0bfa3b 223 led2 = !led2;
roryhand 0:e89d7a0bfa3b 224 place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 225 place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 226 flag1 = 1;
roryhand 0:e89d7a0bfa3b 227 flag2 = 0;
roryhand 1:aac37edee302 228 }
roryhand 1:aac37edee302 229 } else if(flag2 == 0) {
roryhand 0:e89d7a0bfa3b 230 value[0] = Buffer2[place_hold2]>>4;
roryhand 0:e89d7a0bfa3b 231 i2s.write(value,1);//Send next PWM value to amp
roryhand 0:e89d7a0bfa3b 232 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 233 if( (place_hold2 >= BufferLen) ) {
roryhand 0:e89d7a0bfa3b 234 led2 = !led2;
roryhand 0:e89d7a0bfa3b 235 place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 236 place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 237 flag1 = 0;
roryhand 1:aac37edee302 238 flag2 = 1;
roryhand 0:e89d7a0bfa3b 239 FLAGBUFF2 = 0;
roryhand 1:aac37edee302 240 }
roryhand 0:e89d7a0bfa3b 241 }
roryhand 54:606a83fff291 242
roryhand 54:606a83fff291 243 //timer_interrupt.stop();
roryhand 54:606a83fff291 244
roryhand 0:e89d7a0bfa3b 245 }
roryhand 1:aac37edee302 246
roryhand 38:3b4c05af5f36 247
roryhand 38:3b4c05af5f36 248
roryhand 38:3b4c05af5f36 249
roryhand 38:3b4c05af5f36 250
roryhand 0:e89d7a0bfa3b 251
roryhand 59:8e7c25a915a0 252
roryhand 59:8e7c25a915a0 253
roryhand 59:8e7c25a915a0 254
roryhand 59:8e7c25a915a0 255
roryhand 59:8e7c25a915a0 256
roryhand 3:6169aeeaeeb4 257
roryhand 3:6169aeeaeeb4 258
roryhand 3:6169aeeaeeb4 259
roryhand 3:6169aeeaeeb4 260
roryhand 3:6169aeeaeeb4 261
roryhand 3:6169aeeaeeb4 262 //function prototypes
roryhand 45:0e8e1f2ec5d2 263 classSoundFile ReadFileInfo(classSoundFile Sound, FILE * wav_file);
roryhand 3:6169aeeaeeb4 264 classSoundFile LoadFileStream(classSoundFile FileInfo, string filename);
roryhand 3:6169aeeaeeb4 265 void Play_WaveFile(FILE * my_wav, WAV_FILE_STRUCT FileInfo);
roryhand 32:6ee488c97dcc 266 void Play_WaveFileDual(FILE * my_wav, WAV_FILE_STRUCT FileInfo);
roryhand 59:8e7c25a915a0 267 void Play_WaveFileLoop(classSoundFile Sound1, FILE* wavfile1,classPositionIndicators Positions);
roryhand 0:e89d7a0bfa3b 268
roryhand 1:aac37edee302 269 int main()
roryhand 1:aac37edee302 270 {
roryhand 44:a9e84d333a6a 271
roryhand 0:e89d7a0bfa3b 272 NotchUp.mode(PullUp);
roryhand 38:3b4c05af5f36 273 NotchDown.mode(PullUp);
roryhand 0:e89d7a0bfa3b 274
roryhand 0:e89d7a0bfa3b 275 pc.printf("Beginning of program\n");
roryhand 32:6ee488c97dcc 276
roryhand 13:8e93396a27c5 277
roryhand 13:8e93396a27c5 278
roryhand 4:55fbbb049bae 279
roryhand 25:5336e1cf38d6 280 printf("Do we even get to this stupid bloody point\n\r");
roryhand 0:e89d7a0bfa3b 281 //Populate our class instances with some data (is there an implicit way to do this?)
roryhand 28:6b2353fad12d 282
roryhand 1:aac37edee302 283
roryhand 3:6169aeeaeeb4 284 printf("hello\n\r");
roryhand 0:e89d7a0bfa3b 285 //Set up the wolfson Audio Codec board
roryhand 0:e89d7a0bfa3b 286 wm8731_Config_setup();
roryhand 0:e89d7a0bfa3b 287 //i2s audio data transfer code??
roryhand 0:e89d7a0bfa3b 288 i2s.stereomono(I2S_STEREO);
roryhand 0:e89d7a0bfa3b 289 i2s.masterslave(I2S_MASTER);
roryhand 0:e89d7a0bfa3b 290 led3 = 1;
roryhand 0:e89d7a0bfa3b 291 led2 = 1;
roryhand 45:0e8e1f2ec5d2 292 printf("Hello i2s has started!");
roryhand 30:4a8e80b243c4 293 i2s.start();
roryhand 0:e89d7a0bfa3b 294 sampletick.attach(&isr,1.0/sampling_freq); //1/16000
roryhand 54:606a83fff291 295
roryhand 58:a174e7a8f5f2 296 classPositionIndicators Positions;
roryhand 61:212d2db45c56 297 slice1 = Positions.notch7_start_pt;
roryhand 60:36df2997de3d 298 FILE* wavfile1 = fopen("/sd/mydir/SoundDecoder_second/All_eight_notches.wav","rb");
roryhand 60:36df2997de3d 299 //FILE* wavfile1 = fopen("/sd/mydir/SoundDecoder_second/01.wav","rb");
roryhand 58:a174e7a8f5f2 300 classSoundFile Sound1;
roryhand 58:a174e7a8f5f2 301 Sound1 = ReadFileInfo(Sound1, wavfile1);
roryhand 61:212d2db45c56 302 fseek(wavfile1,Positions.notch7_start_pt,SEEK_SET);
roryhand 20:9cc7d825c07b 303 printf("about to play wav file\n\r");
roryhand 59:8e7c25a915a0 304 Play_WaveFileLoop(Sound1,wavfile1,Positions);
roryhand 20:9cc7d825c07b 305 printf("finished playing Wav file\n\r");
roryhand 54:606a83fff291 306
roryhand 54:606a83fff291 307
roryhand 31:0f8c3adf09c3 308 timer_open.reset();
roryhand 31:0f8c3adf09c3 309 timer_open.start();
roryhand 45:0e8e1f2ec5d2 310 fclose(wavfile1);
roryhand 31:0f8c3adf09c3 311 timer_open.stop();
roryhand 31:0f8c3adf09c3 312 printf("It took %d useconds to close file\n\r",timer_open.read_us());
roryhand 54:606a83fff291 313
roryhand 54:606a83fff291 314
roryhand 54:606a83fff291 315
roryhand 54:606a83fff291 316
roryhand 9:dd9cae06b202 317 /************************************PLAY WAV FILE LOOP*******************/
roryhand 9:dd9cae06b202 318 /************************************END OF PLAY WAV FILE LOOP*************/
roryhand 13:8e93396a27c5 319
roryhand 13:8e93396a27c5 320
roryhand 1:aac37edee302 321 i2s.stop();
roryhand 0:e89d7a0bfa3b 322
roryhand 0:e89d7a0bfa3b 323 }
roryhand 0:e89d7a0bfa3b 324
roryhand 0:e89d7a0bfa3b 325
roryhand 3:6169aeeaeeb4 326
roryhand 3:6169aeeaeeb4 327
roryhand 3:6169aeeaeeb4 328
roryhand 3:6169aeeaeeb4 329
roryhand 45:0e8e1f2ec5d2 330 classSoundFile ReadFileInfo(classSoundFile Sound, FILE * wav_file)
roryhand 0:e89d7a0bfa3b 331 {
roryhand 0:e89d7a0bfa3b 332 fseek(wav_file,20,SEEK_SET);
roryhand 22:706e86dc0d45 333 printf("We have just seeked through this file\n\r");
roryhand 45:0e8e1f2ec5d2 334 fread(&Sound.FileInfo.FileFormat,sizeof(Sound.FileInfo.FileFormat),1,wav_file);
roryhand 1:aac37edee302 335 //printf("wav_format.sample_rate: %d\n\r",FileInfo.FileFormat.sample_rate);
roryhand 1:aac37edee302 336
roryhand 45:0e8e1f2ec5d2 337 fread(&Sound.FileInfo.FileData,sizeof(Sound.FileInfo.FileData),1,wav_file);
roryhand 55:5a441d3b0d57 338 printf("wav_data.subchunk2_size: %d\n\r",Sound.FileInfo.FileData.subchunk2_size);
roryhand 45:0e8e1f2ec5d2 339 Sound.FileInfo.slice_buf = ( char *)malloc(Sound.FileInfo.FileFormat.block_align);
roryhand 59:8e7c25a915a0 340 printf("Wav File Block Align (number of bytes per sample!!: %d\n\r", Sound.FileInfo.FileFormat.block_align);
roryhand 45:0e8e1f2ec5d2 341 fread(Sound.FileInfo.slice_buf,Sound.FileInfo.FileFormat.block_align,1,wav_file); //This isnt actually required, its just a test
roryhand 45:0e8e1f2ec5d2 342 Sound.FileInfo.num_slices = Sound.FileInfo.FileData.subchunk2_size/Sound.FileInfo.FileFormat.block_align;
roryhand 1:aac37edee302 343 //printf("Number of Slices: %d\n\r",FileInfo.num_slices);
roryhand 45:0e8e1f2ec5d2 344 return Sound;
roryhand 0:e89d7a0bfa3b 345 }
roryhand 1:aac37edee302 346
roryhand 1:aac37edee302 347
roryhand 1:aac37edee302 348
roryhand 1:aac37edee302 349
roryhand 1:aac37edee302 350
roryhand 0:e89d7a0bfa3b 351
roryhand 0:e89d7a0bfa3b 352 void Play_WaveFile(FILE * my_wav, WAV_FILE_STRUCT FileInfo)
roryhand 0:e89d7a0bfa3b 353 {
roryhand 1:aac37edee302 354 while(slice<FileInfo.num_slices) {
roryhand 1:aac37edee302 355 fread(FileInfo.slice_buf,FileInfo.FileFormat.block_align,1,my_wav);
roryhand 1:aac37edee302 356 data_sptr=(short *)FileInfo.slice_buf; // 16 bit samples
roryhand 1:aac37edee302 357 for (channel=0; channel<FileInfo.FileFormat.num_channels; channel++) {
roryhand 1:aac37edee302 358 if(flag1 == 1) {
roryhand 1:aac37edee302 359 Buffer1[place_hold1] = data_sptr[channel];
roryhand 1:aac37edee302 360 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 361 if(place_hold1 >= BufferLen) {
roryhand 1:aac37edee302 362 while(1) {
roryhand 1:aac37edee302 363 if(flag1 == 0) {
roryhand 0:e89d7a0bfa3b 364
roryhand 1:aac37edee302 365 break;
roryhand 0:e89d7a0bfa3b 366 }
roryhand 1:aac37edee302 367
roryhand 0:e89d7a0bfa3b 368 }
roryhand 1:aac37edee302 369 }
roryhand 1:aac37edee302 370
roryhand 1:aac37edee302 371 } else if(flag2 == 1) {
roryhand 1:aac37edee302 372 Buffer2[place_hold2] = data_sptr[channel];
roryhand 1:aac37edee302 373 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 374 if(place_hold2 >= BufferLen) {
roryhand 1:aac37edee302 375
roryhand 1:aac37edee302 376 while(1) {
roryhand 1:aac37edee302 377 if(flag2 == 0) {
roryhand 1:aac37edee302 378
roryhand 1:aac37edee302 379 break;
roryhand 1:aac37edee302 380 }
roryhand 0:e89d7a0bfa3b 381 }
roryhand 1:aac37edee302 382 }
roryhand 0:e89d7a0bfa3b 383 }
roryhand 1:aac37edee302 384
roryhand 1:aac37edee302 385 }
roryhand 1:aac37edee302 386 slice = slice + 1;
roryhand 0:e89d7a0bfa3b 387 }
roryhand 0:e89d7a0bfa3b 388 }
roryhand 0:e89d7a0bfa3b 389
roryhand 0:e89d7a0bfa3b 390
roryhand 0:e89d7a0bfa3b 391
roryhand 0:e89d7a0bfa3b 392
roryhand 38:3b4c05af5f36 393 //***************************************************************************//
roryhand 38:3b4c05af5f36 394
roryhand 38:3b4c05af5f36 395 //**************************************************************************//
roryhand 38:3b4c05af5f36 396
roryhand 38:3b4c05af5f36 397
roryhand 38:3b4c05af5f36 398
roryhand 38:3b4c05af5f36 399
roryhand 38:3b4c05af5f36 400
roryhand 59:8e7c25a915a0 401
roryhand 44:a9e84d333a6a 402
roryhand 57:0c76b15cabaf 403 void Play_WaveFileLoop(classSoundFile Sound1, FILE *wavfile1, classPositionIndicators Positions)
roryhand 45:0e8e1f2ec5d2 404 {
roryhand 45:0e8e1f2ec5d2 405 while(1) { //might have to change this to a while(1) loop?
roryhand 44:a9e84d333a6a 406
roryhand 2:957d3b2afff4 407
roryhand 44:a9e84d333a6a 408
roryhand 44:a9e84d333a6a 409
roryhand 54:606a83fff291 410
roryhand 44:a9e84d333a6a 411 //Sound1=======================================================================================
roryhand 61:212d2db45c56 412 if( slice1 == (Positions.notch8_start_pt) ) {
roryhand 61:212d2db45c56 413 slice1 = Positions.notch7_start_pt;
roryhand 61:212d2db45c56 414 fseek(wavfile1,Positions.notch7_start_pt,SEEK_SET);
roryhand 2:957d3b2afff4 415 }
roryhand 57:0c76b15cabaf 416
roryhand 44:a9e84d333a6a 417 fread(Sound1.FileInfo.slice_buf,Sound1.FileInfo.FileFormat.block_align,1,wavfile1);
roryhand 44:a9e84d333a6a 418 Sound1.data_sptr=(short *)Sound1.FileInfo.slice_buf; // 16 bit samples
roryhand 44:a9e84d333a6a 419 //=============================================================================================
roryhand 44:a9e84d333a6a 420
roryhand 58:a174e7a8f5f2 421
roryhand 1:aac37edee302 422
roryhand 1:aac37edee302 423
roryhand 44:a9e84d333a6a 424
roryhand 45:0e8e1f2ec5d2 425 for (channel=0; channel<Sound1.FileInfo.FileFormat.num_channels; channel++) {
roryhand 45:0e8e1f2ec5d2 426 switch (Sound1.FileInfo.FileFormat.sig_bps) {
roryhand 0:e89d7a0bfa3b 427 case 16:
roryhand 1:aac37edee302 428 if(flag1 == 1) {
roryhand 45:0e8e1f2ec5d2 429 Buffer1[place_hold1] = Sound1.data_sptr[channel];
roryhand 1:aac37edee302 430 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 431 if(place_hold1 >= BufferLen) {
roryhand 1:aac37edee302 432 while(1) {
roryhand 1:aac37edee302 433 if(flag1 == 0) {
roryhand 1:aac37edee302 434 break;
roryhand 1:aac37edee302 435 }//if(flag1 == 0)
roryhand 1:aac37edee302 436
roryhand 1:aac37edee302 437
roryhand 1:aac37edee302 438 }//while(1)
roryhand 1:aac37edee302 439 }//if(place_hold1 > = BufferLen)
roryhand 0:e89d7a0bfa3b 440
roryhand 1:aac37edee302 441 } else if(flag2 == 1) {
roryhand 45:0e8e1f2ec5d2 442 Buffer2[place_hold2] = Sound1.data_sptr[channel];
roryhand 1:aac37edee302 443 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 444 if(place_hold2 >= BufferLen) {
roryhand 1:aac37edee302 445 while(1) {
roryhand 1:aac37edee302 446
roryhand 1:aac37edee302 447 if(flag2 == 0) {
roryhand 1:aac37edee302 448 break;
roryhand 1:aac37edee302 449 }
roryhand 1:aac37edee302 450 }
roryhand 0:e89d7a0bfa3b 451 }
roryhand 1:aac37edee302 452
roryhand 1:aac37edee302 453 }
roryhand 0:e89d7a0bfa3b 454 }
roryhand 0:e89d7a0bfa3b 455 }
roryhand 59:8e7c25a915a0 456 slice1 = slice1 + 2;//increment up by the number of bytes per Audio data sample! Makes sense it is 2 bytes, as this is 16-bit data.
roryhand 45:0e8e1f2ec5d2 457 slice2 = slice2 + 1;
roryhand 45:0e8e1f2ec5d2 458 slice3 = slice3 + 1;
roryhand 0:e89d7a0bfa3b 459 }
roryhand 0:e89d7a0bfa3b 460 }
roryhand 0:e89d7a0bfa3b 461
roryhand 0:e89d7a0bfa3b 462
roryhand 0:e89d7a0bfa3b 463
roryhand 0:e89d7a0bfa3b 464
roryhand 0:e89d7a0bfa3b 465
roryhand 0:e89d7a0bfa3b 466
roryhand 59:8e7c25a915a0 467
roryhand 59:8e7c25a915a0 468