/*=======================================================================*/
#define PROGRAMMER "SOLUTIONS, Nofrills"
#define PROG_CODE "SOLN"
#define COURSE "ECE-1021"
#define YEAR (2004)
#define TERM "Fall"
#define SECTION (0)
#define ASSIGNMENT "HW9"
#define REVISION (0)
#define TITLE "WAV Data Extractor"
#define SUBTITLE "Last Modified on 23 NOV 04"
#define EMAIL "ece1021@eas.uccs.edu"
#define FILENAME "9_0SOLN0.c"
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/*=======================================================================*/
/* WAIVED COMPILER WARNINGS */
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/*
Linker Warning: No module definition file specified: using defaults
Reason for Waiver: Can't suppress. Does not have adverse impact.
*/
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/* NOTES TO THE USER/GRADER */
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/*
*/
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/* PROBLEM STATEMENT */
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/*
*/
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/* DEVELOPMENT NOTES */
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/*
*/
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/* PSEUDOCODE */
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/*
*/
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/* DEVIATIONS FROM SUBMITTED PSEUDOCODE */
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/*
*/
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/*=======================================================================*/
/* CODE SECTION */
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/*=======================================================================*/
/*== INCLUDE FILES ======================================================*/
#include <stdio.h> /* stdout, putc(), printf(), scanf() */
/* FILE, fopen(), fread(), fwrite() */
/* SEEK_END, SEEK_SET, SEEK_CUR, ftell(), fseek() */
#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE */
/*== MACRO DEFINITIONS (OBJECT-LIKE) ====================================*/
#define FALSE (0)
#define TRUE (!FALSE)
#define BLANKLINE printf("\n")
#define MARGIN (2) /* Left Margin in PrintHeader() */
#define INDENT_SIZE (2) /* Indent relative to */
#define LMARG printc(' ', MARGIN) /* Print Left Margin */
#define INDENT printc(' ', INDENT_SIZE) /* Indent relative to margin */
#define EMPTYLOOP {}
/*== MACRO DEFINITIONS (FUNCTION-LIKE) ==================================*/
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/* SUPPORT FUNCTIONS ( functions not called directly by main() ) */
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int printc(char c, int n)
{
while ( (n--) && (c == putc(c, stdout)) ); /* EMPTY LOOP */
return n;
}
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/* PRIMARY FUNCTIONS ( functions called directly by main() ) */
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/*== FUNCTION PROTOTYPES (to Document Support Functions) ================*/
int printc(char c, int n);
/*== PRIMARY FUNCTIONS ==================================================*/
void PrintHeader(void)
{
LMARG; printc('=', (78 - MARGIN)); putc('\n', stdout);
LMARG; printf("Course....... %s-%i (%s %i)\n",COURSE,SECTION,TERM,YEAR);
LMARG; printf("Programmer... %s (%s)\n", PROGRAMMER, PROG_CODE);
LMARG; printf("Assignment... %s (Rev %i)", ASSIGNMENT, REVISION);
LMARG; printf("(Source Code in %s)\n", FILENAME);
LMARG; printf("Description.. %s\n", TITLE);
LMARG; printf(" %s\n", SUBTITLE);
LMARG; printc('=', (78 - MARGIN)); putc('\n', stdout);
}
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/* MAIN FUNCTION */
/*=======================================================================*/
/*== FUNCTION PROTOTYPES (to Document Primary Functions) ================*/
void PrintHeader(void);
int main(void)
{
FILE *fp, *fp_out;
char filename[81];
char textfilename[81];
char RIFF_ID[4];
long RIFF_Size;
char RIFF_Format[4];
char FMT_ID[4];
long FMT_Size;
int AudioFormat;
int Channels;
long SampleRate;
long ByteRate;
int BlockSize;
int Bits;
/* Read DATA Chunk */
char DATA_ID[4];
long DATA_Size;
long sample, samples;
long BytesRead;
int bytespersample;
int i;
double t, dt;
int channel;
int data;
PrintHeader();
BLANKLINE;
/* 1) TASK: Get Data From User */
printf(" Enter the WAV file name (with extension): ");
scanf("%s", &filename);
if (NULL == (fp = fopen(filename, "rb")))
{
printf("Failed to open file [%s] for binary reading\n", filename);
return EXIT_FAILURE;
}
printf(" Enter the file name to dump to (with extension): ");
scanf("%s", &textfilename);
if (NULL == (fp_out = fopen(textfilename, "wt")))
{
printf("Failed to open file [%s] for text writing\n", textfilename);
return EXIT_FAILURE;
}
/* Read RIFF Chunk */
fread(RIFF_ID, 4, 1, fp); /* Should be "RIFF" */
fread(&RIFF_Size, 4, 1, fp); /* Filesize - 8 */
fread(&RIFF_Format, 4, 1, fp); /* Should be "WAVE" */
/* Read FORMAT Chunk */
fread(FMT_ID, 4, 1, fp); /* Should be "fmt " */
fread(&FMT_Size, 4, 1, fp); /* Should be 16 (AudioFormat = 1) */
fread(&AudioFormat, 2, 1, fp); /* Should be 1 (linear) */
fread(&Channels, 2, 1, fp);
fread(&SampleRate, 4, 1, fp);
fread(&ByteRate, 4, 1, fp);
fread(&BlockSize, 2, 1, fp);
fread(&Bits, 2, 1, fp); /* Should be 16 */
/* Read DATA Chunk */
fread(DATA_ID, 4, 1, fp); /* Should be "data " */
fread(&DATA_Size, 4, 1, fp); /* Should be bytes of sound data */
/* Print out Wave File Summary */
printf(" WAVE FILE SUMMARY:\n");
printf(" Filename:.............. %s\n", filename);
BLANKLINE;
printf(" RIFF CHUNK:\n");
printf(" ID:.................. \"");
for (i = 0; i < 4; i++)
printf("%c", RIFF_ID[i]);
printf("\"\n");
printf(" SIZE:................ %li bytes\n", RIFF_Size);
printf(" Format:.............. \"");
for (i = 0; i < 4; i++)
printf("%c", RIFF_Format[i]);
printf("\"\n");
BLANKLINE;
printf(" FORMAT CHUNK:\n");
printf(" ID:.................. \"");
for (i = 0; i < 4; i++)
printf("%c", FMT_ID[i]);
printf("\"\n");
printf(" SIZE:................ %li bytes\n", FMT_Size);
printf(" Audio Format:........ %i \n", AudioFormat);
printf(" Channels:............ %i channel(s)\n", Channels);
printf(" Sample Rate:......... %li samples per second\n",SampleRate);
printf(" Byte Rate:........... %li bytes per second\n", ByteRate);
printf(" Block Size:.......... %i byte(s)\n", BlockSize);
printf(" Bits Per Sample:..... %i bits\n", Bits);
BLANKLINE;
printf(" DATA CHUNK:\n");
printf(" ID:.................. \"");
for (i = 0; i < 4; i++)
printf("%c", DATA_ID[i]);
printf("\"\n");
printf(" SIZE:................ %li bytes\n", DATA_Size);
BLANKLINE;
printf(" DERIVED PARAMETERS:\n");
samples = DATA_Size / BlockSize;
printf(" Total Samples:....... %li sample(s)\n", samples);
bytespersample = Bits/8 + (Bits%8)? 1 : 0;
printf(" Bytes Per Sample:.... %i byte(s)\n", bytespersample);
dt = 1.0/SampleRate;
printf(" Time Increment:...... %.3f ms\n", 1000.0*dt);
t = samples * dt;
printf(" Total Run Time:...... %.3f sec\n", t);
BLANKLINE;
printf(" Dumping sample data to file [%s]:\n", textfilename);
BytesRead = 0;
sample = 0;
t = 0.0;
while ( (!feof(fp)) && (BytesRead < DATA_Size))
{
fprintf(fp_out, "%f", t);
for (channel = 0; channel < Channels; channel++)
{
fread(&data, 2, 1, fp);
fprintf(fp_out, ",%i", data);
BytesRead += 2;
}
fprintf(fp_out, "\n");
if (!(sample%1000))
printf(" Sample: %li\r", sample++);
sample++;
t += dt;
}
printf(" Sample: %li\n", sample++);
printf(" Dump complete\n");
fclose(fp);
fclose(fp_out);
return EXIT_SUCCESS;
}
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/* END OF SOURCE CODE FILE */
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