add a CLI command that allows conversion of files to other formats using

the Asterisk file format and codec translation modules (issue #6062)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@12962 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_convert.c

@@ -0,0 +1,165 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2005, Digium, Inc.
+ *
+ * redice li <redice_li@yahoo.com>
+ * Russell Bryant <russell@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 file format conversion CLI command using Asterisk formats and translators
+ *
+ * \author redice li <redice_li@yahoo.com>
+ * \author Russell Bryant <russell@digium.com>
+ *
+ */ 
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "asterisk.h"
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include "asterisk/channel.h"
+#include "asterisk/logger.h"
+#include "asterisk/module.h"
+#include "asterisk/cli.h"
+#include "asterisk/file.h"
+
+STANDARD_USECOUNT_DECL;
+
+static char *desc = "File format conversion CLI command";
+
+/*! \brief Split the filename to basename and extension */
+static int split_ext(char *filename, char **name, char **ext)
+{
+	*name = *ext = filename;
+	
+	strsep(ext, ".");
+
+	if (ast_strlen_zero(*name) || ast_strlen_zero(*ext))
+		return -1;
+
+	return 0;
+}
+
+/*! \brief Convert a file from one format to another */
+static int cli_audio_convert(int fd, int argc, char *argv[])
+{
+	int ret = RESULT_FAILURE;
+	struct ast_filestream *fs_in = NULL, *fs_out = NULL;
+	struct ast_frame *f;
+	struct timeval start;
+	int cost;
+	char *file_in = NULL, *file_out = NULL;
+	char *name_in, *ext_in, *name_out, *ext_out;
+	
+	STANDARD_INCREMENT_USECOUNT;
+	
+	if (argc != 3 || ast_strlen_zero(argv[1]) || ast_strlen_zero(argv[2])) {
+		ret = RESULT_SHOWUSAGE;
+		goto fail_out;	
+	}
+
+	if (!(file_in = ast_strdupa(argv[1])) || !(file_out = ast_strdupa(argv[2])))
+		goto fail_out;
+
+	if (split_ext(file_in, &name_in, &ext_in)) {
+		ast_cli(fd, "'%s' is an invalid filename!\n", argv[1]);
+		goto fail_out;
+	}
+	if (!(fs_in = ast_readfile(name_in, ext_in, NULL, O_RDONLY, 0, 0))) {
+		ast_cli(fd, "Unable to open input file: %s\n", argv[1]);
+		goto fail_out;
+	}
+	
+	if (split_ext(file_out, &name_out, &ext_out)) {
+		ast_cli(fd, "'%s' is an invalid filename!\n", argv[2]);
+		goto fail_out;
+	}
+	if (!(fs_out = ast_writefile(name_out, ext_out, NULL, O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) {
+		ast_cli(fd, "Unable to open output file: %s\n", argv[2]);
+		goto fail_out;
+	}
+
+	start = ast_tvnow();
+	
+	while ((f = ast_readframe(fs_in))) {
+		if (ast_writestream(fs_out, f)) {
+			ast_cli(fd, "Failed to convert %s.%s to %s.%s!\n", name_in, ext_in, name_out, ext_out);
+			goto fail_out;
+		}
+	}
+
+	cost = ast_tvdiff_ms(ast_tvnow(), start);
+	ast_cli(fd, "Converted %s.%s to %s.%s in %dms\n", name_in, ext_in, name_out, ext_out, cost);
+	ret = RESULT_SUCCESS;
+
+fail_out:
+	if (fs_out) {
+		ast_closestream(fs_out);
+		if (ret != RESULT_SUCCESS)
+			ast_filedelete(name_out, ext_out);
+	}
+
+	if (fs_in) 
+		ast_closestream(fs_in);
+
+	STANDARD_DECREMENT_USECOUNT;
+	
+	return ret;
+}
+
+static char usage_audio_convert[] =
+"Usage: convert <file_in> <file_out>\n"
+"    Convert from file_in to file_out. If an absolute path is not given, the\n"
+"default Asterisk sounds directory will be used.\n\n"
+"Example:\n"
+"    convert tt-weasels.gsm tt-weasels.ulaw\n";
+
+static struct ast_cli_entry audio_convert_cli={
+	{ "convert" , NULL }, cli_audio_convert, "Convert audio files", usage_audio_convert
+};
+
+int unload_module(void)
+{
+	return ast_cli_unregister(&audio_convert_cli);
+}
+
+int load_module(void)
+{
+	return ast_cli_register(&audio_convert_cli);
+}
+
+char *description(void)
+{
+	return desc;
+}
+
+int usecount(void)
+{
+	int res;
+	
+	STANDARD_USECOUNT(res);
+
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}
+