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-rw-r--r--1.2-netsec/codecs/codec_gsm.c352
1 files changed, 0 insertions, 352 deletions
diff --git a/1.2-netsec/codecs/codec_gsm.c b/1.2-netsec/codecs/codec_gsm.c
deleted file mode 100644
index 65800476e..000000000
--- a/1.2-netsec/codecs/codec_gsm.c
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * The GSM code is from TOAST. Copyright information for that package is available
- * in the GSM directory.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * 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 Translate between signed linear and Global System for Mobile Communications (GSM)
- *
- * \ingroup codecs
- */
-
-#include <fcntl.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <netinet/in.h>
-#include <string.h>
-#include <stdio.h>
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/lock.h"
-#include "asterisk/translate.h"
-#include "asterisk/config.h"
-#include "asterisk/options.h"
-#include "asterisk/module.h"
-#include "asterisk/logger.h"
-#include "asterisk/channel.h"
-
-#include "gsm/inc/gsm.h"
-#include "../formats/msgsm.h"
-
-/* Sample frame data */
-#include "slin_gsm_ex.h"
-#include "gsm_slin_ex.h"
-
-AST_MUTEX_DEFINE_STATIC(localuser_lock);
-static int localusecnt=0;
-
-static char *tdesc = "GSM/PCM16 (signed linear) Codec Translator";
-
-static int useplc = 0;
-
-struct ast_translator_pvt {
- gsm gsm;
- struct ast_frame f;
- /* Space to build offset */
- char offset[AST_FRIENDLY_OFFSET];
- /* Buffer for our outgoing frame */
- short outbuf[8000];
- /* Enough to store a full second */
- short buf[8000];
- int tail;
- plc_state_t plc;
-};
-
-#define gsm_coder_pvt ast_translator_pvt
-
-static struct ast_translator_pvt *gsm_new(void)
-{
- struct gsm_coder_pvt *tmp;
- tmp = malloc(sizeof(struct gsm_coder_pvt));
- if (tmp) {
- if (!(tmp->gsm = gsm_create())) {
- free(tmp);
- tmp = NULL;
- }
- tmp->tail = 0;
- plc_init(&tmp->plc);
- localusecnt++;
- }
- return tmp;
-}
-
-static struct ast_frame *lintogsm_sample(void)
-{
- static struct ast_frame f;
- f.frametype = AST_FRAME_VOICE;
- f.subclass = AST_FORMAT_SLINEAR;
- f.datalen = sizeof(slin_gsm_ex);
- /* Assume 8000 Hz */
- f.samples = sizeof(slin_gsm_ex)/2;
- f.mallocd = 0;
- f.offset = 0;
- f.src = __PRETTY_FUNCTION__;
- f.data = slin_gsm_ex;
- return &f;
-}
-
-static struct ast_frame *gsmtolin_sample(void)
-{
- static struct ast_frame f;
- f.frametype = AST_FRAME_VOICE;
- f.subclass = AST_FORMAT_GSM;
- f.datalen = sizeof(gsm_slin_ex);
- /* All frames are 20 ms long */
- f.samples = 160;
- f.mallocd = 0;
- f.offset = 0;
- f.src = __PRETTY_FUNCTION__;
- f.data = gsm_slin_ex;
- return &f;
-}
-
-static struct ast_frame *gsmtolin_frameout(struct ast_translator_pvt *tmp)
-{
- if (!tmp->tail)
- return NULL;
- /* Signed linear is no particular frame size, so just send whatever
- we have in the buffer in one lump sum */
- tmp->f.frametype = AST_FRAME_VOICE;
- tmp->f.subclass = AST_FORMAT_SLINEAR;
- tmp->f.datalen = tmp->tail * 2;
- /* Assume 8000 Hz */
- tmp->f.samples = tmp->tail;
- tmp->f.mallocd = 0;
- tmp->f.offset = AST_FRIENDLY_OFFSET;
- tmp->f.src = __PRETTY_FUNCTION__;
- tmp->f.data = tmp->buf;
- /* Reset tail pointer */
- tmp->tail = 0;
-
- return &tmp->f;
-}
-
-static int gsmtolin_framein(struct ast_translator_pvt *tmp, struct ast_frame *f)
-{
- /* Assuming there's space left, decode into the current buffer at
- the tail location. Read in as many frames as there are */
- int x;
- unsigned char data[66];
- int msgsm=0;
-
- if(f->datalen == 0) { /* perform PLC with nominal framesize of 20ms/160 samples */
- if((tmp->tail + 160) > sizeof(tmp->buf) / 2) {
- ast_log(LOG_WARNING, "Out of buffer space\n");
- return -1;
- }
- if(useplc) {
- plc_fillin(&tmp->plc, tmp->buf+tmp->tail, 160);
- tmp->tail += 160;
- }
- return 0;
- }
-
- if ((f->datalen % 33) && (f->datalen % 65)) {
- ast_log(LOG_WARNING, "Huh? A GSM frame that isn't a multiple of 33 or 65 bytes long from %s (%d)?\n", f->src, f->datalen);
- return -1;
- }
-
- if (f->datalen % 65 == 0)
- msgsm = 1;
-
- for (x=0;x<f->datalen;x+=(msgsm ? 65 : 33)) {
- if (msgsm) {
- /* Translate MSGSM format to Real GSM format before feeding in */
- conv65(f->data + x, data);
- if (tmp->tail + 320 < sizeof(tmp->buf)/2) {
- if (gsm_decode(tmp->gsm, data, tmp->buf + tmp->tail)) {
- ast_log(LOG_WARNING, "Invalid GSM data (1)\n");
- return -1;
- }
- tmp->tail+=160;
- if (gsm_decode(tmp->gsm, data + 33, tmp->buf + tmp->tail)) {
- ast_log(LOG_WARNING, "Invalid GSM data (2)\n");
- return -1;
- }
- tmp->tail+=160;
- } else {
- ast_log(LOG_WARNING, "Out of (MS) buffer space\n");
- return -1;
- }
- } else {
- if (tmp->tail + 160 < sizeof(tmp->buf)/2) {
- if (gsm_decode(tmp->gsm, f->data + x, tmp->buf + tmp->tail)) {
- ast_log(LOG_WARNING, "Invalid GSM data\n");
- return -1;
- }
- tmp->tail+=160;
- } else {
- ast_log(LOG_WARNING, "Out of buffer space\n");
- return -1;
- }
- }
- }
-
- /* just add the last 20ms frame; there must have been at least one */
- if(useplc) plc_rx(&tmp->plc, tmp->buf+tmp->tail-160, 160);
-
- return 0;
-}
-
-static int lintogsm_framein(struct ast_translator_pvt *tmp, struct ast_frame *f)
-{
- /* Just add the frames to our stream */
- /* XXX We should look at how old the rest of our stream is, and if it
- is too old, then we should overwrite it entirely, otherwise we can
- get artifacts of earlier talk that do not belong */
- if (tmp->tail + f->datalen/2 < sizeof(tmp->buf) / 2) {
- memcpy((tmp->buf + tmp->tail), f->data, f->datalen);
- tmp->tail += f->datalen/2;
- } else {
- ast_log(LOG_WARNING, "Out of buffer space\n");
- return -1;
- }
- return 0;
-}
-
-static struct ast_frame *lintogsm_frameout(struct ast_translator_pvt *tmp)
-{
- int x=0;
- /* We can't work on anything less than a frame in size */
- if (tmp->tail < 160)
- return NULL;
- tmp->f.frametype = AST_FRAME_VOICE;
- tmp->f.subclass = AST_FORMAT_GSM;
- tmp->f.mallocd = 0;
- tmp->f.offset = AST_FRIENDLY_OFFSET;
- tmp->f.src = __PRETTY_FUNCTION__;
- tmp->f.data = tmp->outbuf;
- while(tmp->tail >= 160) {
- if ((x+1) * 33 >= sizeof(tmp->outbuf)) {
- ast_log(LOG_WARNING, "Out of buffer space\n");
- break;
- }
- /* Encode a frame of data */
- gsm_encode(tmp->gsm, tmp->buf, ((gsm_byte *) tmp->outbuf) + (x * 33));
- /* Assume 8000 Hz -- 20 ms */
- tmp->tail -= 160;
- /* Move the data at the end of the buffer to the front */
- if (tmp->tail)
- memmove(tmp->buf, tmp->buf + 160, tmp->tail * 2);
- x++;
- }
- tmp->f.datalen = x * 33;
- tmp->f.samples = x * 160;
- return &tmp->f;
-}
-
-static void gsm_destroy_stuff(struct ast_translator_pvt *pvt)
-{
- if (pvt->gsm)
- gsm_destroy(pvt->gsm);
- free(pvt);
- localusecnt--;
-}
-
-static struct ast_translator gsmtolin =
- { "gsmtolin",
- AST_FORMAT_GSM, AST_FORMAT_SLINEAR,
- gsm_new,
- gsmtolin_framein,
- gsmtolin_frameout,
- gsm_destroy_stuff,
- gsmtolin_sample
- };
-
-static struct ast_translator lintogsm =
- { "lintogsm",
- AST_FORMAT_SLINEAR, AST_FORMAT_GSM,
- gsm_new,
- lintogsm_framein,
- lintogsm_frameout,
- gsm_destroy_stuff,
- lintogsm_sample
- };
-
-
-static void parse_config(void)
-{
- struct ast_config *cfg;
- struct ast_variable *var;
- if ((cfg = ast_config_load("codecs.conf"))) {
- if ((var = ast_variable_browse(cfg, "plc"))) {
- while (var) {
- if (!strcasecmp(var->name, "genericplc")) {
- useplc = ast_true(var->value) ? 1 : 0;
- if (option_verbose > 2)
- ast_verbose(VERBOSE_PREFIX_3 "codec_gsm: %susing generic PLC\n", useplc ? "" : "not ");
- }
- var = var->next;
- }
- }
- ast_config_destroy(cfg);
- }
-}
-
-int reload(void)
-{
- parse_config();
- return 0;
-}
-
-int unload_module(void)
-{
- int res;
- ast_mutex_lock(&localuser_lock);
- res = ast_unregister_translator(&lintogsm);
- if (!res)
- res = ast_unregister_translator(&gsmtolin);
- if (localusecnt)
- res = -1;
- ast_mutex_unlock(&localuser_lock);
- return res;
-}
-
-int load_module(void)
-{
- int res;
- parse_config();
- res=ast_register_translator(&gsmtolin);
- if (!res)
- res=ast_register_translator(&lintogsm);
- else
- ast_unregister_translator(&gsmtolin);
- return res;
-}
-
-char *description(void)
-{
- return tdesc;
-}
-
-int usecount(void)
-{
- int res;
- STANDARD_USECOUNT(res);
- return res;
-}
-
-char *key()
-{
- return ASTERISK_GPL_KEY;
-}
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