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-rw-r--r--trunk/main/indications.c598
1 files changed, 0 insertions, 598 deletions
diff --git a/trunk/main/indications.c b/trunk/main/indications.c
deleted file mode 100644
index e555d0357..000000000
--- a/trunk/main/indications.c
+++ /dev/null
@@ -1,598 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2002, Pauline Middelink
- *
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief Tone Management
- *
- * \author Pauline Middelink <middelink@polyware.nl>
- *
- * This set of function allow us to play a list of tones on a channel.
- * Each element has two frequencies, which are mixed together and a
- * duration. For silence both frequencies can be set to 0.
- * The playtones can be given as a comma separated string.
- *
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include <math.h>
-
-#include "asterisk/lock.h"
-#include "asterisk/linkedlists.h"
-#include "asterisk/indications.h"
-#include "asterisk/frame.h"
-#include "asterisk/channel.h"
-#include "asterisk/utils.h"
-
-static int midi_tohz[128] = {
- 8,8,9,9,10,10,11,12,12,13,14,
- 15,16,17,18,19,20,21,23,24,25,
- 27,29,30,32,34,36,38,41,43,46,
- 48,51,55,58,61,65,69,73,77,82,
- 87,92,97,103,110,116,123,130,138,146,
- 155,164,174,184,195,207,220,233,246,261,
- 277,293,311,329,349,369,391,415,440,466,
- 493,523,554,587,622,659,698,739,783,830,
- 880,932,987,1046,1108,1174,1244,1318,1396,1479,
- 1567,1661,1760,1864,1975,2093,2217,2349,2489,2637,
- 2793,2959,3135,3322,3520,3729,3951,4186,4434,4698,
- 4978,5274,5587,5919,6271,6644,7040,7458,7902,8372,
- 8869,9397,9956,10548,11175,11839,12543
- };
-
-struct playtones_item {
- int fac1;
- int init_v2_1;
- int init_v3_1;
- int fac2;
- int init_v2_2;
- int init_v3_2;
- int modulate;
- int duration;
-};
-
-struct playtones_def {
- int vol;
- int reppos;
- int nitems;
- int interruptible;
- struct playtones_item *items;
-};
-
-struct playtones_state {
- int vol;
- int v1_1;
- int v2_1;
- int v3_1;
- int v1_2;
- int v2_2;
- int v3_2;
- int reppos;
- int nitems;
- struct playtones_item *items;
- int npos;
- int oldnpos;
- int pos;
- int origwfmt;
- struct ast_frame f;
- unsigned char offset[AST_FRIENDLY_OFFSET];
- short data[4000];
-};
-
-static void playtones_release(struct ast_channel *chan, void *params)
-{
- struct playtones_state *ps = params;
-
- if (chan)
- ast_set_write_format(chan, ps->origwfmt);
- if (ps->items)
- ast_free(ps->items);
-
- ast_free(ps);
-}
-
-static void * playtones_alloc(struct ast_channel *chan, void *params)
-{
- struct playtones_def *pd = params;
- struct playtones_state *ps = NULL;
-
- if (!(ps = ast_calloc(1, sizeof(*ps))))
- return NULL;
-
- ps->origwfmt = chan->writeformat;
-
- if (ast_set_write_format(chan, AST_FORMAT_SLINEAR)) {
- ast_log(LOG_WARNING, "Unable to set '%s' to signed linear format (write)\n", chan->name);
- playtones_release(NULL, ps);
- ps = NULL;
- } else {
- ps->vol = pd->vol;
- ps->reppos = pd->reppos;
- ps->nitems = pd->nitems;
- ps->items = pd->items;
- ps->oldnpos = -1;
- }
-
- /* Let interrupts interrupt :) */
- if (pd->interruptible)
- ast_set_flag(chan, AST_FLAG_WRITE_INT);
- else
- ast_clear_flag(chan, AST_FLAG_WRITE_INT);
-
- return ps;
-}
-
-static int playtones_generator(struct ast_channel *chan, void *data, int len, int samples)
-{
- struct playtones_state *ps = data;
- struct playtones_item *pi;
- int x;
- /* we need to prepare a frame with 16 * timelen samples as we're
- * generating SLIN audio
- */
- len = samples * 2;
- if (len > sizeof(ps->data) / 2 - 1) {
- ast_log(LOG_WARNING, "Can't generate that much data!\n");
- return -1;
- }
- memset(&ps->f, 0, sizeof(ps->f));
-
- pi = &ps->items[ps->npos];
- if (ps->oldnpos != ps->npos) {
- /* Load new parameters */
- ps->v1_1 = 0;
- ps->v2_1 = pi->init_v2_1;
- ps->v3_1 = pi->init_v3_1;
- ps->v1_2 = 0;
- ps->v2_2 = pi->init_v2_2;
- ps->v3_2 = pi->init_v3_2;
- ps->oldnpos = ps->npos;
- }
- for (x=0;x<len/2;x++) {
- ps->v1_1 = ps->v2_1;
- ps->v2_1 = ps->v3_1;
- ps->v3_1 = (pi->fac1 * ps->v2_1 >> 15) - ps->v1_1;
-
- ps->v1_2 = ps->v2_2;
- ps->v2_2 = ps->v3_2;
- ps->v3_2 = (pi->fac2 * ps->v2_2 >> 15) - ps->v1_2;
- if (pi->modulate) {
- int p;
- p = ps->v3_2 - 32768;
- if (p < 0) p = -p;
- p = ((p * 9) / 10) + 1;
- ps->data[x] = (ps->v3_1 * p) >> 15;
- } else
- ps->data[x] = ps->v3_1 + ps->v3_2;
- }
-
- ps->f.frametype = AST_FRAME_VOICE;
- ps->f.subclass = AST_FORMAT_SLINEAR;
- ps->f.datalen = len;
- ps->f.samples = samples;
- ps->f.offset = AST_FRIENDLY_OFFSET;
- ps->f.data = ps->data;
- ps->f.delivery.tv_sec = 0;
- ps->f.delivery.tv_usec = 0;
- ast_write(chan, &ps->f);
-
- ps->pos += x;
- if (pi->duration && ps->pos >= pi->duration * 8) { /* item finished? */
- ps->pos = 0; /* start new item */
- ps->npos++;
- if (ps->npos >= ps->nitems) { /* last item? */
- if (ps->reppos == -1) /* repeat set? */
- return -1;
- ps->npos = ps->reppos; /* redo from top */
- }
- }
- return 0;
-}
-
-static struct ast_generator playtones = {
- alloc: playtones_alloc,
- release: playtones_release,
- generate: playtones_generator,
-};
-
-int ast_playtones_start(struct ast_channel *chan, int vol, const char *playlst, int interruptible)
-{
- char *s, *data = ast_strdupa(playlst); /* cute */
- struct playtones_def d = { vol, -1, 0, 1, NULL};
- char *stringp;
- char *separator;
-
- if (vol < 1)
- d.vol = 7219; /* Default to -8db */
-
- d.interruptible = interruptible;
-
- stringp=data;
- /* the stringp/data is not null here */
- /* check if the data is separated with '|' or with ',' by default */
- if (strchr(stringp,'|'))
- separator = "|";
- else
- separator = ",";
- s = strsep(&stringp,separator);
- while (s && *s) {
- int freq1, freq2, time, modulate=0, midinote=0;
-
- if (s[0]=='!')
- s++;
- else if (d.reppos == -1)
- d.reppos = d.nitems;
- if (sscanf(s, "%d+%d/%d", &freq1, &freq2, &time) == 3) {
- /* f1+f2/time format */
- } else if (sscanf(s, "%d+%d", &freq1, &freq2) == 2) {
- /* f1+f2 format */
- time = 0;
- } else if (sscanf(s, "%d*%d/%d", &freq1, &freq2, &time) == 3) {
- /* f1*f2/time format */
- modulate = 1;
- } else if (sscanf(s, "%d*%d", &freq1, &freq2) == 2) {
- /* f1*f2 format */
- time = 0;
- modulate = 1;
- } else if (sscanf(s, "%d/%d", &freq1, &time) == 2) {
- /* f1/time format */
- freq2 = 0;
- } else if (sscanf(s, "%d", &freq1) == 1) {
- /* f1 format */
- freq2 = 0;
- time = 0;
- } else if (sscanf(s, "M%d+M%d/%d", &freq1, &freq2, &time) == 3) {
- /* Mf1+Mf2/time format */
- midinote = 1;
- } else if (sscanf(s, "M%d+M%d", &freq1, &freq2) == 2) {
- /* Mf1+Mf2 format */
- time = 0;
- midinote = 1;
- } else if (sscanf(s, "M%d*M%d/%d", &freq1, &freq2, &time) == 3) {
- /* Mf1*Mf2/time format */
- modulate = 1;
- midinote = 1;
- } else if (sscanf(s, "M%d*M%d", &freq1, &freq2) == 2) {
- /* Mf1*Mf2 format */
- time = 0;
- modulate = 1;
- midinote = 1;
- } else if (sscanf(s, "M%d/%d", &freq1, &time) == 2) {
- /* Mf1/time format */
- freq2 = -1;
- midinote = 1;
- } else if (sscanf(s, "M%d", &freq1) == 1) {
- /* Mf1 format */
- freq2 = -1;
- time = 0;
- midinote = 1;
- } else {
- ast_log(LOG_WARNING,"%s: tone component '%s' of '%s' is no good\n",chan->name,s,playlst);
- return -1;
- }
-
- if (midinote) {
- /* midi notes must be between 0 and 127 */
- if ((freq1 >= 0) && (freq1 <= 127))
- freq1 = midi_tohz[freq1];
- else
- freq1 = 0;
-
- if ((freq2 >= 0) && (freq2 <= 127))
- freq2 = midi_tohz[freq2];
- else
- freq2 = 0;
- }
-
- if (!(d.items = ast_realloc(d.items, (d.nitems + 1) * sizeof(*d.items)))) {
- return -1;
- }
- d.items[d.nitems].fac1 = 2.0 * cos(2.0 * M_PI * (freq1 / 8000.0)) * 32768.0;
- d.items[d.nitems].init_v2_1 = sin(-4.0 * M_PI * (freq1 / 8000.0)) * d.vol;
- d.items[d.nitems].init_v3_1 = sin(-2.0 * M_PI * (freq1 / 8000.0)) * d.vol;
-
- d.items[d.nitems].fac2 = 2.0 * cos(2.0 * M_PI * (freq2 / 8000.0)) * 32768.0;
- d.items[d.nitems].init_v2_2 = sin(-4.0 * M_PI * (freq2 / 8000.0)) * d.vol;
- d.items[d.nitems].init_v3_2 = sin(-2.0 * M_PI * (freq2 / 8000.0)) * d.vol;
- d.items[d.nitems].duration = time;
- d.items[d.nitems].modulate = modulate;
- d.nitems++;
-
- s = strsep(&stringp,separator);
- }
-
- if (ast_activate_generator(chan, &playtones, &d)) {
- ast_free(d.items);
- return -1;
- }
- return 0;
-}
-
-void ast_playtones_stop(struct ast_channel *chan)
-{
- ast_deactivate_generator(chan);
-}
-
-/*--------------------------------------------*/
-
-static AST_RWLIST_HEAD_STATIC(tone_zones, ind_tone_zone);
-static struct ind_tone_zone *current_tonezone;
-
-struct ind_tone_zone *ast_walk_indications(const struct ind_tone_zone *cur)
-{
- struct ind_tone_zone *tz = NULL;
-
- AST_RWLIST_RDLOCK(&tone_zones);
- /* If cur is not NULL, then we have to iterate through - otherwise just return the first entry */
- if (cur) {
- AST_RWLIST_TRAVERSE(&tone_zones, tz, list) {
- if (tz == cur)
- break;
- }
- tz = AST_RWLIST_NEXT(tz, list);
- } else {
- tz = AST_RWLIST_FIRST(&tone_zones);
- }
- AST_RWLIST_UNLOCK(&tone_zones);
-
- return tz;
-}
-
-/* Set global indication country */
-int ast_set_indication_country(const char *country)
-{
- struct ind_tone_zone *zone = NULL;
-
- /* If no country is specified or we are unable to find the zone, then return not found */
- if (!country || !(zone = ast_get_indication_zone(country)))
- return 1;
-
- ast_verb(3, "Setting default indication country to '%s'\n", country);
-
- /* Protect the current tonezone using the tone_zones lock as well */
- AST_RWLIST_WRLOCK(&tone_zones);
- current_tonezone = zone;
- AST_RWLIST_UNLOCK(&tone_zones);
-
- /* Zone was found */
- return 0;
-}
-
-/* locate tone_zone, given the country. if country == NULL, use the default country */
-struct ind_tone_zone *ast_get_indication_zone(const char *country)
-{
- struct ind_tone_zone *tz = NULL;
- int alias_loop = 0;
-
- AST_RWLIST_RDLOCK(&tone_zones);
-
- if (!country) {
- if (current_tonezone)
- tz = current_tonezone;
- else
- tz = AST_LIST_FIRST(&tone_zones);
- } else {
- do {
- AST_RWLIST_TRAVERSE(&tone_zones, tz, list) {
- if (!strcasecmp(tz->country, country))
- break;
- }
- if (!tz)
- break;
- /* If this is an alias then we have to search yet again otherwise we have found the zonezone */
- if (tz->alias && tz->alias[0])
- country = tz->alias;
- else
- break;
- } while ((++alias_loop < 20) && tz);
- }
-
- AST_RWLIST_UNLOCK(&tone_zones);
-
- /* If we reached the maximum loops to find the proper country via alias, print out a notice */
- if (alias_loop == 20)
- ast_log(LOG_NOTICE, "Alias loop for '%s' is bonkers\n", country);
-
- return tz;
-}
-
-/* locate a tone_zone_sound, given the tone_zone. if tone_zone == NULL, use the default tone_zone */
-struct ind_tone_zone_sound *ast_get_indication_tone(const struct ind_tone_zone *zone, const char *indication)
-{
- struct ind_tone_zone_sound *ts = NULL;
-
- AST_RWLIST_RDLOCK(&tone_zones);
-
- /* If no zone is already specified we need to try to pick one */
- if (!zone) {
- if (current_tonezone) {
- zone = current_tonezone;
- } else if (!(zone = AST_LIST_FIRST(&tone_zones))) {
- /* No zone has been found ;( */
- AST_RWLIST_UNLOCK(&tone_zones);
- return NULL;
- }
- }
-
- /* Look through list of tones in the zone searching for the right one */
- for (ts = zone->tones; ts; ts = ts->next) {
- if (!strcasecmp(ts->name, indication))
- break;
- }
-
- AST_RWLIST_UNLOCK(&tone_zones);
-
- return ts;
-}
-
-/* helper function to delete a tone_zone in its entirety */
-static inline void free_zone(struct ind_tone_zone* zone)
-{
- while (zone->tones) {
- struct ind_tone_zone_sound *tmp = zone->tones->next;
- ast_free((void *)zone->tones->name);
- ast_free((void *)zone->tones->data);
- ast_free(zone->tones);
- zone->tones = tmp;
- }
-
- if (zone->ringcadence)
- ast_free(zone->ringcadence);
-
- ast_free(zone);
-}
-
-/*--------------------------------------------*/
-
-/* add a new country, if country exists, it will be replaced. */
-int ast_register_indication_country(struct ind_tone_zone *zone)
-{
- struct ind_tone_zone *tz = NULL;
-
- AST_RWLIST_WRLOCK(&tone_zones);
- AST_RWLIST_TRAVERSE_SAFE_BEGIN(&tone_zones, tz, list) {
- /* If this is not the same zone, then just continue to the next entry */
- if (strcasecmp(zone->country, tz->country))
- continue;
- /* If this zone we are going to remove is the current default then make the new zone the default */
- if (tz == current_tonezone)
- current_tonezone = zone;
- /* Remove from the linked list */
- AST_RWLIST_REMOVE_CURRENT(list);
- /* Finally free the zone itself */
- free_zone(tz);
- break;
- }
- AST_RWLIST_TRAVERSE_SAFE_END;
-
- /* Add zone to the list */
- AST_RWLIST_INSERT_TAIL(&tone_zones, zone, list);
-
- /* It's all over. */
- AST_RWLIST_UNLOCK(&tone_zones);
-
- ast_verb(3, "Registered indication country '%s'\n", zone->country);
-
- return 0;
-}
-
-/* remove an existing country and all its indications, country must exist.
- * Also, all countries which are an alias for the specified country are removed. */
-int ast_unregister_indication_country(const char *country)
-{
- struct ind_tone_zone *tz = NULL;
- int res = -1;
-
- AST_RWLIST_WRLOCK(&tone_zones);
- AST_RWLIST_TRAVERSE_SAFE_BEGIN(&tone_zones, tz, list) {
- if (country && (strcasecmp(country, tz->country) && strcasecmp(country, tz->alias)))
- continue;
- /* If this tonezone is the current default then unset it */
- if (tz == current_tonezone) {
- ast_log(LOG_NOTICE,"Removed default indication country '%s'\n", tz->country);
- current_tonezone = NULL;
- }
- /* Remove from the list */
- AST_RWLIST_REMOVE_CURRENT(list);
- ast_verb(3, "Unregistered indication country '%s'\n", tz->country);
- free_zone(tz);
- res = 0;
- }
- AST_RWLIST_TRAVERSE_SAFE_END;
- AST_RWLIST_UNLOCK(&tone_zones);
-
- return res;
-}
-
-/* add a new indication to a tone_zone. tone_zone must exist. if the indication already
- * exists, it will be replaced. */
-int ast_register_indication(struct ind_tone_zone *zone, const char *indication, const char *tonelist)
-{
- struct ind_tone_zone_sound *ts, *ps;
-
- /* is it an alias? stop */
- if (zone->alias[0])
- return -1;
-
- AST_RWLIST_WRLOCK(&tone_zones);
- for (ps=NULL,ts=zone->tones; ts; ps=ts,ts=ts->next) {
- if (strcasecmp(indication,ts->name)==0) {
- /* indication already there, replace */
- ast_free((void*)ts->name);
- ast_free((void*)ts->data);
- break;
- }
- }
- if (!ts) {
- /* not there, we have to add */
- if (!(ts = ast_malloc(sizeof(*ts)))) {
- AST_RWLIST_UNLOCK(&tone_zones);
- return -2;
- }
- ts->next = NULL;
- }
- if (!(ts->name = ast_strdup(indication)) || !(ts->data = ast_strdup(tonelist))) {
- AST_RWLIST_UNLOCK(&tone_zones);
- return -2;
- }
- if (ps)
- ps->next = ts;
- else
- zone->tones = ts;
- AST_RWLIST_UNLOCK(&tone_zones);
- return 0;
-}
-
-/* remove an existing country's indication. Both country and indication must exist */
-int ast_unregister_indication(struct ind_tone_zone *zone, const char *indication)
-{
- struct ind_tone_zone_sound *ts,*ps = NULL, *tmp;
- int res = -1;
-
- /* is it an alias? stop */
- if (zone->alias[0])
- return -1;
-
- AST_RWLIST_WRLOCK(&tone_zones);
- ts = zone->tones;
- while (ts) {
- if (strcasecmp(indication,ts->name)==0) {
- /* indication found */
- tmp = ts->next;
- if (ps)
- ps->next = tmp;
- else
- zone->tones = tmp;
- ast_free((void*)ts->name);
- ast_free((void*)ts->data);
- ast_free(ts);
- ts = tmp;
- res = 0;
- }
- else {
- /* next zone please */
- ps = ts;
- ts = ts->next;
- }
- }
- /* indication not found, goodbye */
- AST_RWLIST_UNLOCK(&tone_zones);
- return res;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 19:04:26 +0000