kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-10-31 02:37:10 +00:00
Code Issues Packages Projects Releases Wiki Activity

various code cleanup changes including changing #define'd constants to enums,

Browse Source 
comments to doxygen style, memory allocation to use ast_ wrappers, use calloc
instead of malloc+memset, and removing duplicated error messages (issue #6435)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@9259 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2006-02-09 02:08:04 +00:00
parent a8d24df108
commit e13567b0c9
3 changed files with 76 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

108
dsp.c
View File

@@ -58,34 +58,41 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/dsp.h"
#include "asterisk/ulaw.h"
#include "asterisk/alaw.h"
#include "asterisk/utils.h"
/* Number of goertzels for progress detect */
#define GSAMP_SIZE_NA 183 /* North America - 350, 440, 480, 620, 950, 1400, 1800 Hz */
#define GSAMP_SIZE_CR 188 /* Costa Rica, Brazil - Only care about 425 Hz */
#define GSAMP_SIZE_UK 160 /* UK disconnect goertzel feed - shoud trigger 400hz */
/*! Number of goertzels for progress detect */
enum gsamp_size {
GSAMP_SIZE_NA = 183, /*!< North America - 350, 440, 480, 620, 950, 1400, 1800 Hz */
GSAMP_SIZE_CR = 188, /*!< Costa Rica, Brazil - Only care about 425 Hz */
GSAMP_SIZE_UK = 160 /*!< UK disconnect goertzel feed - should trigger 400hz */
};
#define PROG_MODE_NA 0
#define PROG_MODE_CR 1
#define PROG_MODE_UK 2
enum prog_mode {
PROG_MODE_NA = 0,
PROG_MODE_CR,
PROG_MODE_UK
};
/* For US modes */
#define HZ_350 0
#define HZ_440 1
#define HZ_480 2
#define HZ_620 3
#define HZ_950 4
#define HZ_1400 5
#define HZ_1800 6
enum freq_index {
/*! For US modes { */
HZ_350 = 0,
HZ_440,
HZ_480,
HZ_620,
HZ_950,
HZ_1400,
HZ_1800, /*!< } */
/* For CR/BR modes */
#define HZ_425 0
/*! For CR/BR modes */
HZ_425 = 0,
/* For UK mode */
#define HZ_400 0
/*! For UK mode */
HZ_400 = 0
};
static struct progalias {
char *name;
int mode;
enum prog_mode mode;
} aliases[] = {
{ "us", PROG_MODE_NA },
{ "ca", PROG_MODE_NA },
@@ -95,39 +102,42 @@ static struct progalias {
};
static struct progress {
int size;
enum gsamp_size size;
int freqs[7];
} modes[] = {
{ GSAMP_SIZE_NA, { 350, 440, 480, 620, 950, 1400, 1800 } }, /* North America */
{ GSAMP_SIZE_CR, { 425 } },
{ GSAMP_SIZE_UK, { 400 } },
{ GSAMP_SIZE_NA, { 350, 440, 480, 620, 950, 1400, 1800 } }, /*!< North America */
{ GSAMP_SIZE_CR, { 425 } }, /*!< Costa Rica, Brazil */
{ GSAMP_SIZE_UK, { 400 } }, /*!< UK */
};
#define DEFAULT_THRESHOLD 512
#define BUSY_PERCENT 10 /* The percentage difference between the two last silence periods */
#define BUSY_PAT_PERCENT 7 /* The percentage difference between measured and actual pattern */
#define BUSY_THRESHOLD 100 /* Max number of ms difference between max and min times in busy */
#define BUSY_MIN 75 /* Busy must be at least 80 ms in half-cadence */
#define BUSY_MAX 3100 /* Busy can't be longer than 3100 ms in half-cadence */
enum busy_detect {
BUSY_PERCENT = 10, /*!< The percentage difference between the two last silence periods */
BUSY_PAT_PERCENT = 7, /*!< The percentage difference between measured and actual pattern */
BUSY_THRESHOLD = 100, /*!< Max number of ms difference between max and min times in busy */
BUSY_MIN = 75, /*!< Busy must be at least 80 ms in half-cadence */
BUSY_MAX =3100 /*!< Busy can't be longer than 3100 ms in half-cadence */
};
/* Remember last 15 units */
/*! Remember last 15 units */
#define DSP_HISTORY 15
/* Define if you want the fax detector -- NOT RECOMMENDED IN -STABLE */
/*! Define if you want the fax detector -- NOT RECOMMENDED IN -STABLE */
#define FAX_DETECT
#define TONE_THRESH 10.0 /* How much louder the tone should be than channel energy */
#define TONE_MIN_THRESH 1e8 /* How much tone there should be at least to attempt */
/* All THRESH_XXX values are in GSAMP_SIZE chunks (us = 22ms) */
#define THRESH_RING 8 /* Need at least 150ms ring to accept */
#define THRESH_TALK 2 /* Talk detection does not work continously */
#define THRESH_BUSY 4 /* Need at least 80ms to accept */
#define THRESH_CONGESTION 4 /* Need at least 80ms to accept */
#define THRESH_HANGUP 60 /* Need at least 1300ms to accept hangup */
#define THRESH_RING2ANSWER 300 /* Timeout from start of ring to answer (about 6600 ms) */
#define TONE_THRESH 10.0 /*!< How much louder the tone should be than channel energy */
#define TONE_MIN_THRESH 1e8 /*!< How much tone there should be at least to attempt */
/*! All THRESH_XXX values are in GSAMP_SIZE chunks (us = 22ms) */
enum gsamp_thresh {
THRESH_RING = 8, /*!< Need at least 150ms ring to accept */
THRESH_TALK = 2, /*!< Talk detection does not work continuously */
THRESH_BUSY = 4, /*!< Need at least 80ms to accept */
THRESH_CONGESTION = 4, /*!< Need at least 80ms to accept */
THRESH_HANGUP = 60, /*!< Need at least 1300ms to accept hangup */
THRESH_RING2ANSWER = 300 /*!< Timeout from start of ring to answer (about 6600 ms) */
};
#define MAX_DTMF_DIGITS 128
@@ -331,8 +341,8 @@ struct ast_dsp {
goertzel_state_t freqs[7];
int freqcount;
int gsamps;
int gsamp_size;
int progmode;
enum gsamp_size gsamp_size;
enum prog_mode progmode;
int tstate;
int tcount;
int digitmode;
@@ -1434,8 +1444,7 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp,
len = af->datalen / 2;
break;
case AST_FORMAT_ULAW:
shortdata = alloca(af->datalen * 2);
if (!shortdata) {
if (!(shortdata = alloca(af->datalen * 2))) {
ast_log(LOG_WARNING, "Unable to allocate stack space for data: %s\n", strerror(errno));
return af;
}
@@ -1443,8 +1452,7 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp,
shortdata[x] = AST_MULAW(odata[x]);
break;
case AST_FORMAT_ALAW:
shortdata = alloca(af->datalen * 2);
if (!shortdata) {
if (!(shortdata = alloca(af->datalen * 2))) {
ast_log(LOG_WARNING, "Unable to allocate stack space for data: %s\n", strerror(errno));
return af;
}
@@ -1607,10 +1615,8 @@ static void ast_dsp_prog_reset(struct ast_dsp *dsp)
struct ast_dsp *ast_dsp_new(void)
{
struct ast_dsp *dsp;
dsp = malloc(sizeof(struct ast_dsp));
if (dsp) {
memset(dsp, 0, sizeof(struct ast_dsp));
if ((dsp = ast_calloc(1, sizeof(*dsp)))) {
dsp->threshold = DEFAULT_THRESHOLD;
dsp->features = DSP_FEATURE_SILENCE_SUPPRESS;
dsp->busycount = DSP_HISTORY;