Creating tag for the release of asterisk-1.2.5

git-svn-id: http://svn.digium.com/svn/asterisk/tags/1.2.5@11747 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 260 insertions, 0 deletions

diff --git a/1.2-netsec/formats/format_g729.c b/1.2-netsec/formats/format_g729.c
new file mode 100644
index 000000000..6afe539da
--- /dev/null
+++ b/1.2-netsec/formats/format_g729.c
@@ -0,0 +1,260 @@
+/*
+ * 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 to raw, headerless G729 data.
+ * \note This is not an encoder/decoder. The codec fo g729 is only
+ * available with a commercial license from Digium, due to patent
+ * restrictions. Check http://www.digium.com for information.
+ * \arg Extensions: g729 
+ * \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"
+
+/* Some Ideas for this code came from makeg729e.c by Jeffrey Chilton */
+
+/* Portions of the conversion code are by guido@sienanet.it */
+
+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 g729[20];				/* Two Real G729 Frames */
+};
+
+
+AST_MUTEX_DEFINE_STATIC(g729_lock);
+static int glistcnt = 0;
+
+static char *name = "g729";
+static char *desc = "Raw G729 data";
+static char *exts = "g729";
+
+static struct ast_filestream *g729_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 (ast_mutex_lock(&g729_lock)) {
+			ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+			free(tmp);
+			return NULL;
+		}
+		tmp->f = f;
+		tmp->fr.data = tmp->g729;
+		tmp->fr.frametype = AST_FRAME_VOICE;
+		tmp->fr.subclass = AST_FORMAT_G729A;
+		/* datalen will vary for each frame */
+		tmp->fr.src = name;
+		tmp->fr.mallocd = 0;
+		glistcnt++;
+		ast_mutex_unlock(&g729_lock);
+		ast_update_use_count();
+	}
+	return tmp;
+}
+
+static struct ast_filestream *g729_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 (ast_mutex_lock(&g729_lock)) {
+			ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+			free(tmp);
+			return NULL;
+		}
+		tmp->f = f;
+		glistcnt++;
+		ast_mutex_unlock(&g729_lock);
+		ast_update_use_count();
+	} else
+		ast_log(LOG_WARNING, "Out of memory\n");
+	return tmp;
+}
+
+static void g729_close(struct ast_filestream *s)
+{
+	if (ast_mutex_lock(&g729_lock)) {
+		ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+		return;
+	}
+	glistcnt--;
+	ast_mutex_unlock(&g729_lock);
+	ast_update_use_count();
+	fclose(s->f);
+	free(s);
+	s = NULL;
+}
+
+static struct ast_frame *g729_read(struct ast_filestream *s, int *whennext)
+{
+	int res;
+	/* Send a frame from the file to the appropriate channel */
+	s->fr.frametype = AST_FRAME_VOICE;
+	s->fr.subclass = AST_FORMAT_G729A;
+	s->fr.offset = AST_FRIENDLY_OFFSET;
+	s->fr.samples = 160;
+	s->fr.datalen = 20;
+	s->fr.mallocd = 0;
+	s->fr.data = s->g729;
+	if ((res = fread(s->g729, 1, 20, s->f)) != 20) {
+		if (res && (res != 10))
+			ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
+		return NULL;
+	}
+	*whennext = s->fr.samples;
+	return &s->fr;
+}
+
+static int g729_write(struct ast_filestream *fs, struct ast_frame *f)
+{
+	int res;
+	if (f->frametype != AST_FRAME_VOICE) {
+		ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
+		return -1;
+	}
+	if (f->subclass != AST_FORMAT_G729A) {
+		ast_log(LOG_WARNING, "Asked to write non-G729 frame (%d)!\n", f->subclass);
+		return -1;
+	}
+	if (f->datalen % 10) {
+		ast_log(LOG_WARNING, "Invalid data length, %d, should be multiple of 10\n", f->datalen);
+		return -1;
+	}
+	if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) {
+			ast_log(LOG_WARNING, "Bad write (%d/10): %s\n", res, strerror(errno));
+			return -1;
+	}
+	return 0;
+}
+
+static char *g729_getcomment(struct ast_filestream *s)
+{
+	return NULL;
+}
+
+static int g729_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	long bytes;
+	off_t min,cur,max,offset=0;
+	min = 0;
+	cur = ftell(fs->f);
+	fseek(fs->f, 0, SEEK_END);
+	max = ftell(fs->f);
+	
+	bytes = 20 * (sample_offset / 160);
+	if (whence == SEEK_SET)
+		offset = bytes;
+	else if (whence == SEEK_CUR || whence == SEEK_FORCECUR)
+		offset = cur + bytes;
+	else if (whence == SEEK_END)
+		offset = max - bytes;
+	if (whence != SEEK_FORCECUR) {
+		offset = (offset > max)?max:offset;
+	}
+	/* protect against seeking beyond begining. */
+	offset = (offset < min)?min:offset;
+	if (fseek(fs->f, offset, SEEK_SET) < 0)
+		return -1;
+	return 0;
+}
+
+static int g729_trunc(struct ast_filestream *fs)
+{
+	/* Truncate file to current length */
+	if (ftruncate(fileno(fs->f), ftell(fs->f)) < 0)
+		return -1;
+	return 0;
+}
+
+static long g729_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = ftell(fs->f);
+	return (offset/20)*160;
+}
+
+int load_module()
+{
+	return ast_format_register(name, exts, AST_FORMAT_G729A,
+								g729_open,
+								g729_rewrite,
+								g729_write,
+								g729_seek,
+								g729_trunc,
+								g729_tell,
+								g729_read,
+								g729_close,
+								g729_getcomment);
+								
+								
+}
+
+int unload_module()
+{
+	return ast_format_unregister(name);
+}	
+
+int usecount()
+{
+	return glistcnt;
+}
+
+char *description()
+{
+	return desc;
+}
+
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}