remove this file, it is not used anywhere.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89477 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/gentone-ulaw.c b/channels/gentone-ulaw.c
deleted file mode 100644 (file)
index b290d76..0000000
--- a/channels/gentone-ulaw.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Generate a header file for a particular 
-   single or double frequency */
-
-#include <stdio.h>
-#include <math.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#define CLIP 32635
-#define BIAS 0x84
-static float loudness=16384.0;
-
-static int calc_samples(int freq)
-{
-       int x, samples;
-       /* Calculate the number of samples at 8000hz sampling
-          we need to have this wave form */
-       samples = 8000;
-       /* Take out common 2's up to six times */
-       for (x=0;x<6;x++) 
-               if (!(freq % 2)) {
-                       freq /= 2;
-                       samples /= 2;
-               }
-       /* Take out common 5's (up to three times */
-       for (x=0;x<3;x++) 
-               if (!(freq % 5)) {
-                       freq /= 5;
-                       samples /=5;
-               }
-       /* No more common factors. */
-       return samples;
-}
-
-/*
-** This routine converts from linear to ulaw
-**
-** Craig Reese: IDA/Supercomputing Research Center
-** Joe Campbell: Department of Defense
-** 29 September 1989
-**
-** References:
-** 1) CCITT Recommendation G.711  (very difficult to follow)
-** 2) "A New Digital Technique for Implementation of Any
-**     Continuous PCM Companding Law," Villeret, Michel,
-**     et al. 1973 IEEE Int. Conf. on Communications, Vol 1,
-**     1973, pg. 11.12-11.17
-** 3) MIL-STD-188-113,"Interoperability and Performance Standards
-**     for Analog-to_Digital Conversion Techniques,"
-**     17 February 1987
-**
-** Input: Signed 16 bit linear sample
-** Output: 8 bit ulaw sample
-*/
-
-#define ZEROTRAP    /* turn on the trap as per the MIL-STD */
-#define BIAS 0x84   /* define the add-in bias for 16 bit samples */
-#define CLIP 32635
-
-static unsigned char linear2ulaw(short sample) {
-static int exp_lut[256] = {0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,
-                             4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
-                             5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-                             5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-                             6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-                             6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-                             6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-                             6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-                             7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7};
-  int sign, exponent, mantissa;
-  unsigned char ulawbyte;
-
-  /* Get the sample into sign-magnitude. */
-  sign = (sample >> 8) & 0x80;          /* set aside the sign */
-  if (sign != 0) sample = -sample;              /* get magnitude */
-  if (sample > CLIP) sample = CLIP;             /* clip the magnitude */
-
-  /* Convert from 16 bit linear to ulaw. */
-  sample = sample + BIAS;
-  exponent = exp_lut[(sample >> 7) & 0xFF];
-  mantissa = (sample >> (exponent + 3)) & 0x0F;
-  ulawbyte = ~(sign | (exponent << 4) | mantissa);
-#ifdef ZEROTRAP
-  if (ulawbyte == 0) ulawbyte = 0x02;   /* optional CCITT trap */
-#endif
-
-  return(ulawbyte);
-}
-
-int main(int argc, char *argv[])
-{
-       FILE *f;
-       int freq1, freq2;
-       float wlen1, wlen2;
-       float val;
-       int x, samples1, samples2, samples=0;
-       char fn[256];
-       if (argc < 3) {
-               fprintf(stderr, "Usage: gensound <name> <freq1> [freq2]\n");
-               exit(1);
-       }
-       freq1 = atoi(argv[2]);
-       if (argc > 3) 
-               freq2 = atoi(argv[3]);
-       else
-               freq2 = 0;
-       wlen1 = 8000.0/(float)freq1;
-       samples1 = calc_samples(freq1);
-       printf("Wavelength 1 (in samples): %10.5f\n", wlen1);
-       printf("Minimum samples (1): %d (%f.3 wavelengths)\n", samples1, samples1 / wlen1);
-       if (freq2) {
-               wlen2 = 8000.0/(float)freq2;
-               samples2 = calc_samples(freq2);
-               printf("Wavelength 1 (in samples): %10.5f\n", wlen2);
-               printf("Minimum samples (1): %d (%f.3 wavelengths)\n", samples2, samples2 / wlen2);
-       }
-       samples = samples1;
-       if (freq2) {
-               while(samples % samples2)
-                       samples += samples1;
-       }
-       printf("Need %d samples\n", samples);
-       snprintf(fn, sizeof(fn), "%s.h", argv[1]);
-       if ((f = fopen(fn, "w"))) {
-               if (freq2) 
-                       fprintf(f, "/* %s: Generated from frequencies %d and %d \n"
-                                  "   by gentone.  %d samples  */\n", fn, freq1, freq2, samples); 
-               else
-                       fprintf(f, "/* %s: Generated from frequency %d\n"
-                                  "   by gentone.  %d samples  */\n", fn, freq1, samples); 
-               fprintf(f, "static unsigned char %s[%d] = {\n\t", argv[1], samples);
-               for (x=0;x<samples;x++) {
-                       val = loudness * sin((freq1 * 2.0 * M_PI * x)/8000.0);
-                       if (freq2)
-                               val += loudness * sin((freq2 * 2.0 * M_PI * x)/8000.0);
-                       fprintf(f, "%3d, ", (int) linear2ulaw(val));
-                       if (!((x+1) % 8)) 
-                               fprintf(f, "\n\t");
-               }
-               if (x % 15)
-                       fprintf(f, "\n");
-               fprintf(f, "};\n");
-               fclose(f);
-               printf("Wrote %s\n", fn);
-       } else {
-               fprintf(stderr, "Unable to open %s for writing\n", fn);
-               return 1;
-       }
-       return 0;
-}