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@59:8e7c25a915a0, 2019-09-27 (annotated)

Committer:
roryhand
Date:
Fri Sep 27 19:51:29 2019 +0000
Branch:
LargeFile_Tests
Revision:
59:8e7c25a915a0
Parent:
58:a174e7a8f5f2
Child:
60:36df2997de3d
WIP - when playing the largest file in a loop, you can hear a "blip".  why?? Was this to do with the way that Audacity puts this all together?

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 58:a174e7a8f5f2 105 classPositionIndicators()
roryhand 57:0c76b15cabaf 106 {
roryhand 57:0c76b15cabaf 107 notch1_start_pt = 44;
roryhand 57:0c76b15cabaf 108 notch2_start_pt = 220884+44;
roryhand 57:0c76b15cabaf 109 notch3_start_pt = notch2_start_pt+217698;
roryhand 57:0c76b15cabaf 110 notch4_start_pt = notch3_start_pt + 193060;
roryhand 57:0c76b15cabaf 111 notch5_start_pt = notch4_start_pt + 92010;
roryhand 57:0c76b15cabaf 112 notch6_start_pt = notch5_start_pt + 216642;
roryhand 57:0c76b15cabaf 113 notch7_start_pt = notch6_start_pt + 250316;
roryhand 57:0c76b15cabaf 114 notch8_start_pt = notch7_start_pt + 165084;
roryhand 57:0c76b15cabaf 115 notch1_indicator = notch1_start_pt;
roryhand 57:0c76b15cabaf 116 notch2_indicator = notch2_start_pt;
roryhand 57:0c76b15cabaf 117 notch3_indicator = notch3_start_pt;
roryhand 57:0c76b15cabaf 118 notch4_indicator = notch4_start_pt;
roryhand 57:0c76b15cabaf 119 notch5_indicator = notch5_start_pt;
roryhand 57:0c76b15cabaf 120 notch6_indicator = notch6_start_pt;
roryhand 57:0c76b15cabaf 121 notch7_indicator = notch7_start_pt;
roryhand 57:0c76b15cabaf 122 notch8_indicator = notch8_start_pt;
roryhand 57:0c76b15cabaf 123
roryhand 57:0c76b15cabaf 124 }
roryhand 57:0c76b15cabaf 125 };
roryhand 57:0c76b15cabaf 126
roryhand 54:606a83fff291 127 int OneOff = 0;
roryhand 38:3b4c05af5f36 128 int notch_flag = 0;
roryhand 0:e89d7a0bfa3b 129 int i = 0;
roryhand 0:e89d7a0bfa3b 130 int h = 0;
roryhand 0:e89d7a0bfa3b 131 short bufflen = 1;
roryhand 0:e89d7a0bfa3b 132 int buffer[1];
roryhand 1:aac37edee302 133 int AudioFormat, NumChannels, SampleRate, BitsPerSample ;
roryhand 0:e89d7a0bfa3b 134 char *slice_buf;
roryhand 0:e89d7a0bfa3b 135 short *data_sptr;
roryhand 0:e89d7a0bfa3b 136 short *data_sptr_horn;
roryhand 0:e89d7a0bfa3b 137 short *data_sptr_IdleN2;
roryhand 0:e89d7a0bfa3b 138 short * data_sptr_bell;
roryhand 0:e89d7a0bfa3b 139 short * data_sptr_N2;
roryhand 0:e89d7a0bfa3b 140 short * data_sptr_Flange;
roryhand 0:e89d7a0bfa3b 141 unsigned char *data_bptr;
roryhand 0:e89d7a0bfa3b 142 int *data_wptr;
roryhand 0:e89d7a0bfa3b 143 unsigned channel;
roryhand 45:0e8e1f2ec5d2 144 long slice, slice1, slice2, slice3, num_slices;
roryhand 0:e89d7a0bfa3b 145 int verbosity = 0;
roryhand 0:e89d7a0bfa3b 146 int verbosity2 = 0;
roryhand 0:e89d7a0bfa3b 147 int verbosity3 = 0;
roryhand 0:e89d7a0bfa3b 148 int verbosity4 = 0;
roryhand 0:e89d7a0bfa3b 149 int verbosity5 = 0;
roryhand 0:e89d7a0bfa3b 150 int interrupt_condition = 1;
roryhand 0:e89d7a0bfa3b 151 int sampling_freq = 11025;
roryhand 0:e89d7a0bfa3b 152 const int BufferLen = 2000;
roryhand 0:e89d7a0bfa3b 153 short Buffer1[BufferLen];
roryhand 0:e89d7a0bfa3b 154 short Buffer2[BufferLen];
roryhand 0:e89d7a0bfa3b 155 short place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 156 short place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 157
roryhand 3:6169aeeaeeb4 158
roryhand 3:6169aeeaeeb4 159 string FOLDER;
roryhand 3:6169aeeaeeb4 160 string RootFolder = "/sd/mydir/SoundDecoder/";
roryhand 3:6169aeeaeeb4 161 string filename[25];
roryhand 3:6169aeeaeeb4 162 classSoundFile Sound[22];
roryhand 3:6169aeeaeeb4 163
roryhand 0:e89d7a0bfa3b 164 volatile int flag1 = 1;
roryhand 0:e89d7a0bfa3b 165 volatile int flag2 = 0;
roryhand 0:e89d7a0bfa3b 166 volatile int flag3 = 1;
roryhand 0:e89d7a0bfa3b 167 volatile int flag4 = 0;
roryhand 0:e89d7a0bfa3b 168 int FLAGBUFF1 = 0;
roryhand 0:e89d7a0bfa3b 169 int FLAGBUFF2 = 0;
roryhand 0:e89d7a0bfa3b 170 int BellFlag = 0;
roryhand 0:e89d7a0bfa3b 171 int BellFlag2 = 0;
roryhand 0:e89d7a0bfa3b 172 int FadeFlag = 0;
roryhand 54:606a83fff291 173 int BlockFlag = 0;
roryhand 32:6ee488c97dcc 174 int FileSwitchFlag = 0;
roryhand 0:e89d7a0bfa3b 175
roryhand 0:e89d7a0bfa3b 176
roryhand 0:e89d7a0bfa3b 177 short value[1];
roryhand 59:8e7c25a915a0 178
roryhand 0:e89d7a0bfa3b 179 //long long slice_value;
roryhand 0:e89d7a0bfa3b 180 int slice_value[1];
roryhand 0:e89d7a0bfa3b 181
roryhand 0:e89d7a0bfa3b 182
roryhand 45:0e8e1f2ec5d2 183 FILE *wavfile1;
roryhand 45:0e8e1f2ec5d2 184 FILE *wavfile2;
roryhand 45:0e8e1f2ec5d2 185 FILE *wavfile3;
roryhand 45:0e8e1f2ec5d2 186
roryhand 45:0e8e1f2ec5d2 187 classSoundFile Sound1;
roryhand 45:0e8e1f2ec5d2 188 classSoundFile Sound2;
roryhand 45:0e8e1f2ec5d2 189 classSoundFile Sound3;
roryhand 45:0e8e1f2ec5d2 190
roryhand 0:e89d7a0bfa3b 191
roryhand 0:e89d7a0bfa3b 192 void isr()
roryhand 0:e89d7a0bfa3b 193 {
roryhand 54:606a83fff291 194 //timer_interrupt.start();
roryhand 1:aac37edee302 195 if(flag1 == 0) {
roryhand 0:e89d7a0bfa3b 196 value[0] = Buffer1[place_hold1]>>4;
roryhand 0:e89d7a0bfa3b 197 i2s.write(value,1);//Send next PWM value to amp
roryhand 0:e89d7a0bfa3b 198 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 199 if( (place_hold1 >= BufferLen)) {
roryhand 0:e89d7a0bfa3b 200 led2 = !led2;
roryhand 0:e89d7a0bfa3b 201 place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 202 place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 203 flag1 = 1;
roryhand 0:e89d7a0bfa3b 204 flag2 = 0;
roryhand 1:aac37edee302 205 }
roryhand 1:aac37edee302 206 } else if(flag2 == 0) {
roryhand 0:e89d7a0bfa3b 207 value[0] = Buffer2[place_hold2]>>4;
roryhand 0:e89d7a0bfa3b 208 i2s.write(value,1);//Send next PWM value to amp
roryhand 0:e89d7a0bfa3b 209 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 210 if( (place_hold2 >= BufferLen) ) {
roryhand 0:e89d7a0bfa3b 211 led2 = !led2;
roryhand 0:e89d7a0bfa3b 212 place_hold1 = 0;
roryhand 0:e89d7a0bfa3b 213 place_hold2 = 0;
roryhand 0:e89d7a0bfa3b 214 flag1 = 0;
roryhand 1:aac37edee302 215 flag2 = 1;
roryhand 0:e89d7a0bfa3b 216 FLAGBUFF2 = 0;
roryhand 1:aac37edee302 217 }
roryhand 0:e89d7a0bfa3b 218 }
roryhand 54:606a83fff291 219
roryhand 54:606a83fff291 220 //timer_interrupt.stop();
roryhand 54:606a83fff291 221
roryhand 0:e89d7a0bfa3b 222 }
roryhand 1:aac37edee302 223
roryhand 38:3b4c05af5f36 224
roryhand 38:3b4c05af5f36 225
roryhand 38:3b4c05af5f36 226
roryhand 38:3b4c05af5f36 227
roryhand 0:e89d7a0bfa3b 228
roryhand 59:8e7c25a915a0 229
roryhand 59:8e7c25a915a0 230
roryhand 59:8e7c25a915a0 231
roryhand 59:8e7c25a915a0 232
roryhand 59:8e7c25a915a0 233
roryhand 3:6169aeeaeeb4 234
roryhand 3:6169aeeaeeb4 235
roryhand 3:6169aeeaeeb4 236
roryhand 3:6169aeeaeeb4 237
roryhand 3:6169aeeaeeb4 238
roryhand 3:6169aeeaeeb4 239 //function prototypes
roryhand 45:0e8e1f2ec5d2 240 classSoundFile ReadFileInfo(classSoundFile Sound, FILE * wav_file);
roryhand 3:6169aeeaeeb4 241 classSoundFile LoadFileStream(classSoundFile FileInfo, string filename);
roryhand 3:6169aeeaeeb4 242 void Play_WaveFile(FILE * my_wav, WAV_FILE_STRUCT FileInfo);
roryhand 32:6ee488c97dcc 243 void Play_WaveFileDual(FILE * my_wav, WAV_FILE_STRUCT FileInfo);
roryhand 59:8e7c25a915a0 244 void Play_WaveFileLoop(classSoundFile Sound1, FILE* wavfile1,classPositionIndicators Positions);
roryhand 0:e89d7a0bfa3b 245
roryhand 1:aac37edee302 246 int main()
roryhand 1:aac37edee302 247 {
roryhand 44:a9e84d333a6a 248
roryhand 0:e89d7a0bfa3b 249 NotchUp.mode(PullUp);
roryhand 38:3b4c05af5f36 250 NotchDown.mode(PullUp);
roryhand 0:e89d7a0bfa3b 251
roryhand 0:e89d7a0bfa3b 252 pc.printf("Beginning of program\n");
roryhand 32:6ee488c97dcc 253
roryhand 13:8e93396a27c5 254
roryhand 13:8e93396a27c5 255
roryhand 4:55fbbb049bae 256
roryhand 25:5336e1cf38d6 257 printf("Do we even get to this stupid bloody point\n\r");
roryhand 0:e89d7a0bfa3b 258 //Populate our class instances with some data (is there an implicit way to do this?)
roryhand 28:6b2353fad12d 259
roryhand 1:aac37edee302 260
roryhand 3:6169aeeaeeb4 261 printf("hello\n\r");
roryhand 0:e89d7a0bfa3b 262 //Set up the wolfson Audio Codec board
roryhand 0:e89d7a0bfa3b 263 wm8731_Config_setup();
roryhand 0:e89d7a0bfa3b 264 //i2s audio data transfer code??
roryhand 0:e89d7a0bfa3b 265 i2s.stereomono(I2S_STEREO);
roryhand 0:e89d7a0bfa3b 266 i2s.masterslave(I2S_MASTER);
roryhand 0:e89d7a0bfa3b 267 led3 = 1;
roryhand 0:e89d7a0bfa3b 268 led2 = 1;
roryhand 45:0e8e1f2ec5d2 269 printf("Hello i2s has started!");
roryhand 30:4a8e80b243c4 270 i2s.start();
roryhand 0:e89d7a0bfa3b 271 sampletick.attach(&isr,1.0/sampling_freq); //1/16000
roryhand 54:606a83fff291 272
roryhand 58:a174e7a8f5f2 273 classPositionIndicators Positions;
roryhand 58:a174e7a8f5f2 274 slice1 = 0;
roryhand 59:8e7c25a915a0 275 //FILE* wavfile1 = fopen("/sd/mydir/SoundDecoder_second/All_eight_notches.wav","rb");
roryhand 59:8e7c25a915a0 276 FILE* wavfile1 = fopen("/sd/mydir/SoundDecoder_second/01.wav","rb");
roryhand 59:8e7c25a915a0 277 fseek(wavfile1,Positions.notch1_start_pt,SEEK_SET);
roryhand 58:a174e7a8f5f2 278 classSoundFile Sound1;
roryhand 58:a174e7a8f5f2 279 Sound1 = ReadFileInfo(Sound1, wavfile1);
roryhand 20:9cc7d825c07b 280 printf("about to play wav file\n\r");
roryhand 59:8e7c25a915a0 281 Play_WaveFileLoop(Sound1,wavfile1,Positions);
roryhand 20:9cc7d825c07b 282 printf("finished playing Wav file\n\r");
roryhand 54:606a83fff291 283
roryhand 54:606a83fff291 284
roryhand 31:0f8c3adf09c3 285 timer_open.reset();
roryhand 31:0f8c3adf09c3 286 timer_open.start();
roryhand 45:0e8e1f2ec5d2 287 fclose(wavfile1);
roryhand 31:0f8c3adf09c3 288 timer_open.stop();
roryhand 31:0f8c3adf09c3 289 printf("It took %d useconds to close file\n\r",timer_open.read_us());
roryhand 54:606a83fff291 290
roryhand 54:606a83fff291 291
roryhand 54:606a83fff291 292
roryhand 54:606a83fff291 293
roryhand 9:dd9cae06b202 294 /************************************PLAY WAV FILE LOOP*******************/
roryhand 9:dd9cae06b202 295 /************************************END OF PLAY WAV FILE LOOP*************/
roryhand 13:8e93396a27c5 296
roryhand 13:8e93396a27c5 297
roryhand 1:aac37edee302 298 i2s.stop();
roryhand 0:e89d7a0bfa3b 299
roryhand 0:e89d7a0bfa3b 300 }
roryhand 0:e89d7a0bfa3b 301
roryhand 0:e89d7a0bfa3b 302
roryhand 3:6169aeeaeeb4 303
roryhand 3:6169aeeaeeb4 304
roryhand 3:6169aeeaeeb4 305
roryhand 3:6169aeeaeeb4 306
roryhand 45:0e8e1f2ec5d2 307 classSoundFile ReadFileInfo(classSoundFile Sound, FILE * wav_file)
roryhand 0:e89d7a0bfa3b 308 {
roryhand 0:e89d7a0bfa3b 309 fseek(wav_file,20,SEEK_SET);
roryhand 22:706e86dc0d45 310 printf("We have just seeked through this file\n\r");
roryhand 45:0e8e1f2ec5d2 311 fread(&Sound.FileInfo.FileFormat,sizeof(Sound.FileInfo.FileFormat),1,wav_file);
roryhand 1:aac37edee302 312 //printf("wav_format.sample_rate: %d\n\r",FileInfo.FileFormat.sample_rate);
roryhand 1:aac37edee302 313
roryhand 45:0e8e1f2ec5d2 314 fread(&Sound.FileInfo.FileData,sizeof(Sound.FileInfo.FileData),1,wav_file);
roryhand 55:5a441d3b0d57 315 printf("wav_data.subchunk2_size: %d\n\r",Sound.FileInfo.FileData.subchunk2_size);
roryhand 45:0e8e1f2ec5d2 316 Sound.FileInfo.slice_buf = ( char *)malloc(Sound.FileInfo.FileFormat.block_align);
roryhand 59:8e7c25a915a0 317 printf("Wav File Block Align (number of bytes per sample!!: %d\n\r", Sound.FileInfo.FileFormat.block_align);
roryhand 45:0e8e1f2ec5d2 318 fread(Sound.FileInfo.slice_buf,Sound.FileInfo.FileFormat.block_align,1,wav_file); //This isnt actually required, its just a test
roryhand 45:0e8e1f2ec5d2 319 Sound.FileInfo.num_slices = Sound.FileInfo.FileData.subchunk2_size/Sound.FileInfo.FileFormat.block_align;
roryhand 1:aac37edee302 320 //printf("Number of Slices: %d\n\r",FileInfo.num_slices);
roryhand 45:0e8e1f2ec5d2 321 return Sound;
roryhand 0:e89d7a0bfa3b 322 }
roryhand 1:aac37edee302 323
roryhand 1:aac37edee302 324
roryhand 1:aac37edee302 325
roryhand 1:aac37edee302 326
roryhand 1:aac37edee302 327
roryhand 0:e89d7a0bfa3b 328
roryhand 0:e89d7a0bfa3b 329 void Play_WaveFile(FILE * my_wav, WAV_FILE_STRUCT FileInfo)
roryhand 0:e89d7a0bfa3b 330 {
roryhand 1:aac37edee302 331 while(slice<FileInfo.num_slices) {
roryhand 1:aac37edee302 332 fread(FileInfo.slice_buf,FileInfo.FileFormat.block_align,1,my_wav);
roryhand 1:aac37edee302 333 data_sptr=(short *)FileInfo.slice_buf; // 16 bit samples
roryhand 1:aac37edee302 334 for (channel=0; channel<FileInfo.FileFormat.num_channels; channel++) {
roryhand 1:aac37edee302 335 if(flag1 == 1) {
roryhand 1:aac37edee302 336 Buffer1[place_hold1] = data_sptr[channel];
roryhand 1:aac37edee302 337 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 338 if(place_hold1 >= BufferLen) {
roryhand 1:aac37edee302 339 while(1) {
roryhand 1:aac37edee302 340 if(flag1 == 0) {
roryhand 0:e89d7a0bfa3b 341
roryhand 1:aac37edee302 342 break;
roryhand 0:e89d7a0bfa3b 343 }
roryhand 1:aac37edee302 344
roryhand 0:e89d7a0bfa3b 345 }
roryhand 1:aac37edee302 346 }
roryhand 1:aac37edee302 347
roryhand 1:aac37edee302 348 } else if(flag2 == 1) {
roryhand 1:aac37edee302 349 Buffer2[place_hold2] = data_sptr[channel];
roryhand 1:aac37edee302 350 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 351 if(place_hold2 >= BufferLen) {
roryhand 1:aac37edee302 352
roryhand 1:aac37edee302 353 while(1) {
roryhand 1:aac37edee302 354 if(flag2 == 0) {
roryhand 1:aac37edee302 355
roryhand 1:aac37edee302 356 break;
roryhand 1:aac37edee302 357 }
roryhand 0:e89d7a0bfa3b 358 }
roryhand 1:aac37edee302 359 }
roryhand 0:e89d7a0bfa3b 360 }
roryhand 1:aac37edee302 361
roryhand 1:aac37edee302 362 }
roryhand 1:aac37edee302 363 slice = slice + 1;
roryhand 0:e89d7a0bfa3b 364 }
roryhand 0:e89d7a0bfa3b 365 }
roryhand 0:e89d7a0bfa3b 366
roryhand 0:e89d7a0bfa3b 367
roryhand 0:e89d7a0bfa3b 368
roryhand 0:e89d7a0bfa3b 369
roryhand 38:3b4c05af5f36 370 //***************************************************************************//
roryhand 38:3b4c05af5f36 371
roryhand 38:3b4c05af5f36 372 //**************************************************************************//
roryhand 38:3b4c05af5f36 373
roryhand 38:3b4c05af5f36 374
roryhand 38:3b4c05af5f36 375
roryhand 38:3b4c05af5f36 376
roryhand 38:3b4c05af5f36 377
roryhand 59:8e7c25a915a0 378
roryhand 44:a9e84d333a6a 379
roryhand 57:0c76b15cabaf 380 void Play_WaveFileLoop(classSoundFile Sound1, FILE *wavfile1, classPositionIndicators Positions)
roryhand 45:0e8e1f2ec5d2 381 {
roryhand 45:0e8e1f2ec5d2 382 while(1) { //might have to change this to a while(1) loop?
roryhand 44:a9e84d333a6a 383
roryhand 2:957d3b2afff4 384
roryhand 44:a9e84d333a6a 385
roryhand 44:a9e84d333a6a 386
roryhand 54:606a83fff291 387
roryhand 44:a9e84d333a6a 388 //Sound1=======================================================================================
roryhand 58:a174e7a8f5f2 389 if( slice1 == (Positions.notch2_start_pt) ) {
roryhand 44:a9e84d333a6a 390 slice1 = 0;
roryhand 58:a174e7a8f5f2 391 fseek(wavfile1,Positions.notch1_start_pt,SEEK_SET);
roryhand 2:957d3b2afff4 392 }
roryhand 57:0c76b15cabaf 393
roryhand 44:a9e84d333a6a 394 fread(Sound1.FileInfo.slice_buf,Sound1.FileInfo.FileFormat.block_align,1,wavfile1);
roryhand 44:a9e84d333a6a 395 Sound1.data_sptr=(short *)Sound1.FileInfo.slice_buf; // 16 bit samples
roryhand 44:a9e84d333a6a 396 //=============================================================================================
roryhand 44:a9e84d333a6a 397
roryhand 58:a174e7a8f5f2 398
roryhand 1:aac37edee302 399
roryhand 1:aac37edee302 400
roryhand 44:a9e84d333a6a 401
roryhand 45:0e8e1f2ec5d2 402 for (channel=0; channel<Sound1.FileInfo.FileFormat.num_channels; channel++) {
roryhand 45:0e8e1f2ec5d2 403 switch (Sound1.FileInfo.FileFormat.sig_bps) {
roryhand 0:e89d7a0bfa3b 404 case 16:
roryhand 1:aac37edee302 405 if(flag1 == 1) {
roryhand 45:0e8e1f2ec5d2 406 Buffer1[place_hold1] = Sound1.data_sptr[channel];
roryhand 1:aac37edee302 407 place_hold1 = place_hold1 + 1;
roryhand 1:aac37edee302 408 if(place_hold1 >= BufferLen) {
roryhand 1:aac37edee302 409 while(1) {
roryhand 1:aac37edee302 410 if(flag1 == 0) {
roryhand 1:aac37edee302 411 break;
roryhand 1:aac37edee302 412 }//if(flag1 == 0)
roryhand 1:aac37edee302 413
roryhand 1:aac37edee302 414
roryhand 1:aac37edee302 415 }//while(1)
roryhand 1:aac37edee302 416 }//if(place_hold1 > = BufferLen)
roryhand 0:e89d7a0bfa3b 417
roryhand 1:aac37edee302 418 } else if(flag2 == 1) {
roryhand 45:0e8e1f2ec5d2 419 Buffer2[place_hold2] = Sound1.data_sptr[channel];
roryhand 1:aac37edee302 420 place_hold2 = place_hold2 + 1;
roryhand 1:aac37edee302 421 if(place_hold2 >= BufferLen) {
roryhand 1:aac37edee302 422 while(1) {
roryhand 1:aac37edee302 423
roryhand 1:aac37edee302 424 if(flag2 == 0) {
roryhand 1:aac37edee302 425 break;
roryhand 1:aac37edee302 426 }
roryhand 1:aac37edee302 427 }
roryhand 0:e89d7a0bfa3b 428 }
roryhand 1:aac37edee302 429
roryhand 1:aac37edee302 430 }
roryhand 0:e89d7a0bfa3b 431 }
roryhand 0:e89d7a0bfa3b 432 }
roryhand 59:8e7c25a915a0 433 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 434 slice2 = slice2 + 1;
roryhand 45:0e8e1f2ec5d2 435 slice3 = slice3 + 1;
roryhand 0:e89d7a0bfa3b 436 }
roryhand 0:e89d7a0bfa3b 437 }
roryhand 0:e89d7a0bfa3b 438
roryhand 0:e89d7a0bfa3b 439
roryhand 0:e89d7a0bfa3b 440
roryhand 0:e89d7a0bfa3b 441
roryhand 0:e89d7a0bfa3b 442
roryhand 0:e89d7a0bfa3b 443
roryhand 59:8e7c25a915a0 444
roryhand 59:8e7c25a915a0 445