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-rw-r--r--1.2-netsec/formats/format_wav_gsm.c589
1 files changed, 0 insertions, 589 deletions
diff --git a/1.2-netsec/formats/format_wav_gsm.c b/1.2-netsec/formats/format_wav_gsm.c
deleted file mode 100644
index c7bc50425..000000000
--- a/1.2-netsec/formats/format_wav_gsm.c
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * 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 Save GSM in the proprietary Microsoft format.
- *
- * Microsoft WAV format (Proprietary GSM)
- * \arg File name extension: WAV,wav49 (Upper case WAV, lower case is another format)
- * This format can be played on Windows systems, used for
- * e-mail attachments mainly.
- * \ingroup formats
- */
-
-#include <unistd.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/lock.h"
-#include "asterisk/channel.h"
-#include "asterisk/file.h"
-#include "asterisk/logger.h"
-#include "asterisk/sched.h"
-#include "asterisk/module.h"
-#include "asterisk/endian.h"
-
-#include "msgsm.h"
-
-/* Some Ideas for this code came from makewave.c by Jeffrey Chilton */
-
-/* Portions of the conversion code are by guido@sienanet.it */
-
-/* begin binary data: */
-char msgsm_silence[] = /* 65 */
-{0x48,0x17,0xD6,0x84,0x02,0x80,0x24,0x49,0x92,0x24,0x89,0x02,0x80,0x24,0x49
-,0x92,0x24,0x89,0x02,0x80,0x24,0x49,0x92,0x24,0x89,0x02,0x80,0x24,0x49,0x92
-,0x24,0x09,0x82,0x74,0x61,0x4D,0x28,0x00,0x48,0x92,0x24,0x49,0x92,0x28,0x00
-,0x48,0x92,0x24,0x49,0x92,0x28,0x00,0x48,0x92,0x24,0x49,0x92,0x28,0x00,0x48
-,0x92,0x24,0x49,0x92,0x00};
-/* end binary data. size = 65 bytes */
-
-struct ast_filestream {
- void *reserved[AST_RESERVED_POINTERS];
- /* Believe it or not, we must decode/recode to account for the
- weird MS format */
- /* This is what a filestream means to us */
- FILE *f; /* Descriptor */
- struct ast_frame fr; /* Frame information */
- char waste[AST_FRIENDLY_OFFSET]; /* Buffer for sending frames, etc */
- char empty; /* Empty character */
- unsigned char gsm[66]; /* Two Real GSM Frames */
- int foffset;
- int secondhalf; /* Are we on the second half */
- struct timeval last;
-};
-
-
-AST_MUTEX_DEFINE_STATIC(wav_lock);
-static int glistcnt = 0;
-
-static char *name = "wav49";
-static char *desc = "Microsoft WAV format (Proprietary GSM)";
-static char *exts = "WAV|wav49";
-
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define htoll(b) (b)
-#define htols(b) (b)
-#define ltohl(b) (b)
-#define ltohs(b) (b)
-#else
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define htoll(b) \
- (((((b) ) & 0xFF) << 24) | \
- ((((b) >> 8) & 0xFF) << 16) | \
- ((((b) >> 16) & 0xFF) << 8) | \
- ((((b) >> 24) & 0xFF) ))
-#define htols(b) \
- (((((b) ) & 0xFF) << 8) | \
- ((((b) >> 8) & 0xFF) ))
-#define ltohl(b) htoll(b)
-#define ltohs(b) htols(b)
-#else
-#error "Endianess not defined"
-#endif
-#endif
-
-
-static int check_header(FILE *f)
-{
- int type, size, formtype;
- int fmt, hsize, fact;
- short format, chans;
- int freq;
- int data;
- if (fread(&type, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (type)\n");
- return -1;
- }
- if (fread(&size, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (size)\n");
- return -1;
- }
- size = ltohl(size);
- if (fread(&formtype, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (formtype)\n");
- return -1;
- }
- if (memcmp(&type, "RIFF", 4)) {
- ast_log(LOG_WARNING, "Does not begin with RIFF\n");
- return -1;
- }
- if (memcmp(&formtype, "WAVE", 4)) {
- ast_log(LOG_WARNING, "Does not contain WAVE\n");
- return -1;
- }
- if (fread(&fmt, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (fmt)\n");
- return -1;
- }
- if (memcmp(&fmt, "fmt ", 4)) {
- ast_log(LOG_WARNING, "Does not say fmt\n");
- return -1;
- }
- if (fread(&hsize, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (formtype)\n");
- return -1;
- }
- if (ltohl(hsize) != 20) {
- ast_log(LOG_WARNING, "Unexpected header size %d\n", ltohl(hsize));
- return -1;
- }
- if (fread(&format, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Read failed (format)\n");
- return -1;
- }
- if (ltohs(format) != 49) {
- ast_log(LOG_WARNING, "Not a GSM file %d\n", ltohs(format));
- return -1;
- }
- if (fread(&chans, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Read failed (format)\n");
- return -1;
- }
- if (ltohs(chans) != 1) {
- ast_log(LOG_WARNING, "Not in mono %d\n", ltohs(chans));
- return -1;
- }
- if (fread(&freq, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (freq)\n");
- return -1;
- }
- if (ltohl(freq) != 8000) {
- ast_log(LOG_WARNING, "Unexpected freqency %d\n", ltohl(freq));
- return -1;
- }
- /* Ignore the byte frequency */
- if (fread(&freq, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (X_1)\n");
- return -1;
- }
- /* Ignore the two weird fields */
- if (fread(&freq, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (X_2/X_3)\n");
- return -1;
- }
- /* Ignore the byte frequency */
- if (fread(&freq, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (Y_1)\n");
- return -1;
- }
- /* Check for the word fact */
- if (fread(&fact, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (fact)\n");
- return -1;
- }
- if (memcmp(&fact, "fact", 4)) {
- ast_log(LOG_WARNING, "Does not say fact\n");
- return -1;
- }
- /* Ignore the "fact value" */
- if (fread(&fact, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (fact header)\n");
- return -1;
- }
- if (fread(&fact, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (fact value)\n");
- return -1;
- }
- /* Check for the word data */
- if (fread(&data, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (data)\n");
- return -1;
- }
- if (memcmp(&data, "data", 4)) {
- ast_log(LOG_WARNING, "Does not say data\n");
- return -1;
- }
- /* Ignore the data length */
- if (fread(&data, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Read failed (data)\n");
- return -1;
- }
- return 0;
-}
-
-static int update_header(FILE *f)
-{
- off_t cur,end,bytes;
- int datalen,filelen;
-
- cur = ftell(f);
- fseek(f, 0, SEEK_END);
- end = ftell(f);
- /* in a gsm WAV, data starts 60 bytes in */
- bytes = end - 60;
- datalen = htoll((bytes + 1) & ~0x1);
- filelen = htoll(52 + ((bytes + 1) & ~0x1));
- if (cur < 0) {
- ast_log(LOG_WARNING, "Unable to find our position\n");
- return -1;
- }
- if (fseek(f, 4, SEEK_SET)) {
- ast_log(LOG_WARNING, "Unable to set our position\n");
- return -1;
- }
- if (fwrite(&filelen, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to set write file size\n");
- return -1;
- }
- if (fseek(f, 56, SEEK_SET)) {
- ast_log(LOG_WARNING, "Unable to set our position\n");
- return -1;
- }
- if (fwrite(&datalen, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to set write datalen\n");
- return -1;
- }
- if (fseek(f, cur, SEEK_SET)) {
- ast_log(LOG_WARNING, "Unable to return to position\n");
- return -1;
- }
- return 0;
-}
-
-static int write_header(FILE *f)
-{
- unsigned int hz=htoll(8000);
- unsigned int bhz = htoll(1625);
- unsigned int hs = htoll(20);
- unsigned short fmt = htols(49);
- unsigned short chans = htols(1);
- unsigned int fhs = htoll(4);
- unsigned int x_1 = htoll(65);
- unsigned short x_2 = htols(2);
- unsigned short x_3 = htols(320);
- unsigned int y_1 = htoll(20160);
- unsigned int size = htoll(0);
- /* Write a GSM header, ignoring sizes which will be filled in later */
- if (fwrite("RIFF", 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&size, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite("WAVEfmt ", 1, 8, f) != 8) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&hs, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&fmt, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&chans, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&hz, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&bhz, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&x_1, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&x_2, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&x_3, 1, 2, f) != 2) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite("fact", 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&fhs, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&y_1, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite("data", 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- if (fwrite(&size, 1, 4, f) != 4) {
- ast_log(LOG_WARNING, "Unable to write header\n");
- return -1;
- }
- return 0;
-}
-
-static struct ast_filestream *wav_open(FILE *f)
-{
- /* We don't have any header to read or anything really, but
- if we did, it would go here. We also might want to check
- and be sure it's a valid file. */
- struct ast_filestream *tmp;
- if ((tmp = malloc(sizeof(struct ast_filestream)))) {
- memset(tmp, 0, sizeof(struct ast_filestream));
- if (check_header(f)) {
- free(tmp);
- return NULL;
- }
- if (ast_mutex_lock(&wav_lock)) {
- ast_log(LOG_WARNING, "Unable to lock wav list\n");
- free(tmp);
- return NULL;
- }
- tmp->f = f;
- tmp->fr.data = tmp->gsm;
- tmp->fr.frametype = AST_FRAME_VOICE;
- tmp->fr.subclass = AST_FORMAT_GSM;
- /* datalen will vary for each frame */
- tmp->fr.src = name;
- tmp->fr.mallocd = 0;
- tmp->secondhalf = 0;
- glistcnt++;
- ast_mutex_unlock(&wav_lock);
- ast_update_use_count();
- }
- return tmp;
-}
-
-static struct ast_filestream *wav_rewrite(FILE *f, const char *comment)
-{
- /* We don't have any header to read or anything really, but
- if we did, it would go here. We also might want to check
- and be sure it's a valid file. */
- struct ast_filestream *tmp;
- if ((tmp = malloc(sizeof(struct ast_filestream)))) {
- memset(tmp, 0, sizeof(struct ast_filestream));
- if (write_header(f)) {
- free(tmp);
- return NULL;
- }
- if (ast_mutex_lock(&wav_lock)) {
- ast_log(LOG_WARNING, "Unable to lock wav list\n");
- free(tmp);
- return NULL;
- }
- tmp->f = f;
- glistcnt++;
- ast_mutex_unlock(&wav_lock);
- ast_update_use_count();
- } else
- ast_log(LOG_WARNING, "Out of memory\n");
- return tmp;
-}
-
-static void wav_close(struct ast_filestream *s)
-{
- char zero = 0;
- if (ast_mutex_lock(&wav_lock)) {
- ast_log(LOG_WARNING, "Unable to lock wav list\n");
- return;
- }
- glistcnt--;
- ast_mutex_unlock(&wav_lock);
- ast_update_use_count();
- /* Pad to even length */
- fseek(s->f, 0, SEEK_END);
- if (ftell(s->f) & 0x1)
- fwrite(&zero, 1, 1, s->f);
- fclose(s->f);
- free(s);
- s = NULL;
-}
-
-static struct ast_frame *wav_read(struct ast_filestream *s, int *whennext)
-{
- int res;
- char msdata[66];
- /* Send a frame from the file to the appropriate channel */
-
- s->fr.frametype = AST_FRAME_VOICE;
- s->fr.subclass = AST_FORMAT_GSM;
- s->fr.offset = AST_FRIENDLY_OFFSET;
- s->fr.samples = 160;
- s->fr.datalen = 33;
- s->fr.mallocd = 0;
- if (s->secondhalf) {
- /* Just return a frame based on the second GSM frame */
- s->fr.data = s->gsm + 33;
- } else {
- if ((res = fread(msdata, 1, 65, s->f)) != 65) {
- if (res && (res != 1))
- ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
- return NULL;
- }
- /* Convert from MS format to two real GSM frames */
- conv65(msdata, s->gsm);
- s->fr.data = s->gsm;
- }
- s->secondhalf = !s->secondhalf;
- *whennext = 160;
- return &s->fr;
-}
-
-static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
-{
- int res;
- char msdata[66];
- int len =0;
- int alreadyms=0;
- if (f->frametype != AST_FRAME_VOICE) {
- ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
- return -1;
- }
- if (f->subclass != AST_FORMAT_GSM) {
- ast_log(LOG_WARNING, "Asked to write non-GSM frame (%d)!\n", f->subclass);
- return -1;
- }
- if (!(f->datalen % 65))
- alreadyms = 1;
- while(len < f->datalen) {
- if (alreadyms) {
- fs->secondhalf = 0;
- if ((res = fwrite(f->data + len, 1, 65, fs->f)) != 65) {
- ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
- return -1;
- }
- update_header(fs->f);
- len += 65;
- } else {
- if (fs->secondhalf) {
- memcpy(fs->gsm + 33, f->data + len, 33);
- conv66(fs->gsm, msdata);
- if ((res = fwrite(msdata, 1, 65, fs->f)) != 65) {
- ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
- return -1;
- }
- update_header(fs->f);
- } else {
- /* Copy the data and do nothing */
- memcpy(fs->gsm, f->data + len, 33);
- }
- fs->secondhalf = !fs->secondhalf;
- len += 33;
- }
- }
- return 0;
-}
-
-static int wav_seek(struct ast_filestream *fs, long sample_offset, int whence)
-{
- off_t offset=0,distance,cur,min,max;
- min = 60;
- cur = ftell(fs->f);
- fseek(fs->f, 0, SEEK_END);
- max = ftell(fs->f);
- /* I'm getting sloppy here, I'm only going to go to even splits of the 2
- * frames, if you want tighter cuts use format_gsm, format_pcm, or format_wav */
- distance = (sample_offset/320) * 65;
- if(whence == SEEK_SET)
- offset = distance + min;
- else if(whence == SEEK_CUR || whence == SEEK_FORCECUR)
- offset = distance + cur;
- else if(whence == SEEK_END)
- offset = max - distance;
- /* always protect against seeking past end of header */
- offset = (offset < min)?min:offset;
- if (whence != SEEK_FORCECUR) {
- offset = (offset > max)?max:offset;
- } else if (offset > max) {
- int i;
- fseek(fs->f, 0, SEEK_END);
- for (i=0; i< (offset - max) / 65; i++) {
- fwrite(msgsm_silence, 1, 65, fs->f);
- }
- }
- fs->secondhalf = 0;
- return fseek(fs->f, offset, SEEK_SET);
-}
-
-static int wav_trunc(struct ast_filestream *fs)
-{
- if (ftruncate(fileno(fs->f), ftell(fs->f)))
- return -1;
- return update_header(fs->f);
-}
-
-static long wav_tell(struct ast_filestream *fs)
-{
- off_t offset;
- offset = ftell(fs->f);
- /* since this will most likely be used later in play or record, lets stick
- * to that level of resolution, just even frames boundaries */
- return (offset - 52)/65*320;
-}
-
-static char *wav_getcomment(struct ast_filestream *s)
-{
- return NULL;
-}
-
-int load_module()
-{
- return ast_format_register(name, exts, AST_FORMAT_GSM,
- wav_open,
- wav_rewrite,
- wav_write,
- wav_seek,
- wav_trunc,
- wav_tell,
- wav_read,
- wav_close,
- wav_getcomment);
-
-
-}
-
-int unload_module()
-{
- return ast_format_unregister(name);
-}
-
-int usecount()
-{
- return glistcnt;
-}
-
-char *description()
-{
- return desc;
-}
-
-
-char *key()
-{
- return ASTERISK_GPL_KEY;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 19:51:29 +0000