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Merge pull request #8 from ishmandoo/output_file_oflag 

Changed outpuf file oflags for pifm.c and piam.c
pull/9/head
F5OEO 2016-01-05 09:53:18 +01:00
rodzic a80e10904d fe591b4c85
commit 15034cb673
2 zmienionych plików z 40 dodań i 40 usunięć
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42
am/piam.c
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@ -18,7 +18,7 @@
#define ln(x) (log(x)/log(2.718281828459045235f))
#define BUFFER_LEN 1024*8
int FileFreqTiming;
// Test program using SNDFILE
// Test program using SNDFILE
// see http://www.mega-nerd.com/libsndfile/api.html for API
void WriteTone(double Frequency,uint32_t Timing)
{
@ -27,7 +27,7 @@ typedef struct {
uint32_t WaitForThisSample;
} samplerf_t;
samplerf_t RfSample;
RfSample.Frequency=Frequency;
RfSample.WaitForThisSample=Timing; //en 100 de nanosecond
@ -43,17 +43,17 @@ int main(int argc, char **argv) {
float data_filtered[2*BUFFER_LEN] ; // we generate complex I/Q samples
SNDFILE *infile, *outfile ;
SF_INFO sfinfo ;
int readcount, nb_samples ;
char *infilename ;
char *outfilename ;
int k ;
float x ;
if( argc < 2 ) {
printf("Usage : %s in.wav [out.wav]\n", argv[0]);
return(1);
}
}
infilename = argv[1] ;
if( argc == 3 ) {
outfilename = argv[2] ;
@ -68,31 +68,31 @@ int main(int argc, char **argv) {
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
if( sfinfo.samplerate != 48000 ) {
printf("Input rate must be 48K.\n");
return 1 ;
}
FileFreqTiming = open(outfilename, O_RDONLY);
FileFreqTiming = open(outfilename, O_RWONLY);
/** **/
printf ("Reading file : %s\n", infilename ) ;
printf ("Sample Rate : %d\n", sfinfo.samplerate) ;
printf ("Channels : %d\n", sfinfo.channels) ;
printf ("----------------------------------------\n") ;
printf ("Writing file : %s\n", outfilename ) ;
/* While there are.frames in the input file, read them, process
** them and write them to the output file.
*/
while ((readcount = sf_readf_float(infile, data, BUFFER_LEN)))
{
nb_samples = readcount / sfinfo.channels ;
{
nb_samples = readcount / sfinfo.channels ;
for( k=0 ; k < nb_samples ; k++ ) {
x = data[k*sfinfo.channels] ;
if( sfinfo.channels == 2 ) {
@ -107,18 +107,18 @@ int main(int argc, char **argv) {
double ampf=x/32767.0;
ampf = (fabs(ampf) < 1.0f/A) ? A*fabs(ampf)/(1.0f+ln(A)) : (1.0f+ln(A*fabs(ampf)))/(1.0f+ln(A)); //compand
x= (int)(round(ampf * 32767.0f)) ;
*/
*/
WriteTone(x*32767*FactAmplitude,1e9/48000.0);
}
} ;
/* Close input and output files. */
sf_close (infile) ;
close(FileFreqTiming);
return 0;
}

38
fm/pifm.c
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@ -18,7 +18,7 @@
#define BUFFER_LEN 1024*8
int FileFreqTiming;
// Test program using SNDFILE
// Test program using SNDFILE
// see http://www.mega-nerd.com/libsndfile/api.html for API
void WriteTone(double Frequency,uint32_t Timing)
{
@ -27,7 +27,7 @@ typedef struct {
uint32_t WaitForThisSample;
} samplerf_t;
samplerf_t RfSample;
RfSample.Frequency=Frequency;
RfSample.WaitForThisSample=Timing; //en 100 de nanosecond
@ -43,17 +43,17 @@ int main(int argc, char **argv) {
float data_filtered[2*BUFFER_LEN] ; // we generate complex I/Q samples
SNDFILE *infile, *outfile ;
SF_INFO sfinfo ;
int readcount, nb_samples ;
char *infilename ;
char *outfilename ;
int k ;
float x ;
if( argc < 2 ) {
printf("Usage : %s in.wav [out.wav]\n", argv[0]);
return(1);
}
}
infilename = argv[1] ;
if( argc == 3 ) {
outfilename = argv[2] ;
@ -68,31 +68,31 @@ int main(int argc, char **argv) {
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
if( sfinfo.samplerate != 48000 ) {
printf("Input rate must be 48K.\n");
return 1 ;
}
FileFreqTiming = open(outfilename, O_RDONLY);
FileFreqTiming = open(outfilename, O_RWONLY);
/** **/
printf ("Reading file : %s\n", infilename ) ;
printf ("Sample Rate : %d\n", sfinfo.samplerate) ;
printf ("Channels : %d\n", sfinfo.channels) ;
printf ("----------------------------------------\n") ;
printf ("Writing file : %s\n", outfilename ) ;
/* While there are.frames in the input file, read them, process
** them and write them to the output file.
*/
int Excursion=6000;
while ((readcount = sf_readf_float(infile, data, BUFFER_LEN)))
{
nb_samples = readcount / sfinfo.channels ;
{
nb_samples = readcount / sfinfo.channels ;
for( k=0 ; k < nb_samples ; k++ ) {
x = data[k*sfinfo.channels] ;
if( sfinfo.channels == 2 ) {
@ -102,16 +102,16 @@ int main(int argc, char **argv) {
}
//printf("%f \n",x);
WriteTone(x*Excursion*2.0,1e9/48000.0);
}
} ;
/* Close input and output files. */
sf_close (infile) ;
close(FileFreqTiming);
return 0;
}