Mon May 14 04:52:27 2007

Asterisk developer's documentation


res_convert.c File Reference

file format conversion CLI command using Asterisk formats and translators More...

#include "asterisk.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "asterisk/channel.h"
#include "asterisk/logger.h"
#include "asterisk/module.h"
#include "asterisk/cli.h"
#include "asterisk/file.h"

Include dependency graph for res_convert.c:

Go to the source code of this file.

Functions

 AST_MODULE_INFO_STANDARD (ASTERISK_GPL_KEY,"File format conversion CLI command")
static int cli_audio_convert (int fd, int argc, char *argv[])
static int cli_audio_convert_deprecated (int fd, int argc, char *argv[])
 Convert a file from one format to another.
static int load_module (void)
static int split_ext (char *filename, char **name, char **ext)
 Split the filename to basename and extension.
static int unload_module (void)

Variables

static struct ast_cli_entry cli_convert []
static struct ast_cli_entry cli_convert_deprecated
static char usage_audio_convert []


Detailed Description

file format conversion CLI command using Asterisk formats and translators

Author:
redice li <redice_li@yahoo.com>

Russell Bryant <russell@digium.com>

Definition in file res_convert.c.


Function Documentation

AST_MODULE_INFO_STANDARD ( ASTERISK_GPL_KEY  ,
"File format conversion CLI command"   
)

static int cli_audio_convert ( int  fd,
int  argc,
char *  argv[] 
) [static]

Definition at line 124 of file res_convert.c.

References ast_cli(), ast_closestream(), ast_filedelete(), ast_module_ref(), ast_module_unref(), ast_readfile(), ast_readframe(), ast_strdupa, ast_strlen_zero(), ast_writefile(), ast_writestream(), f, RESULT_FAILURE, RESULT_SHOWUSAGE, RESULT_SUCCESS, and split_ext().

00125 {
00126    int ret = RESULT_FAILURE;
00127    struct ast_filestream *fs_in = NULL, *fs_out = NULL;
00128    struct ast_frame *f;
00129    struct timeval start;
00130    int cost;
00131    char *file_in = NULL, *file_out = NULL;
00132    char *name_in, *ext_in, *name_out, *ext_out;
00133    
00134    /* ugly, can be removed when CLI entries have ast_module pointers */
00135    ast_module_ref(ast_module_info->self);
00136 
00137    if (argc != 4 || ast_strlen_zero(argv[2]) || ast_strlen_zero(argv[3])) {
00138       ret = RESULT_SHOWUSAGE;
00139       goto fail_out; 
00140    }
00141 
00142    file_in = ast_strdupa(argv[2]);
00143    file_out = ast_strdupa(argv[3]);
00144 
00145    if (split_ext(file_in, &name_in, &ext_in)) {
00146       ast_cli(fd, "'%s' is an invalid filename!\n", argv[2]);
00147       goto fail_out;
00148    }
00149    if (!(fs_in = ast_readfile(name_in, ext_in, NULL, O_RDONLY, 0, 0))) {
00150       ast_cli(fd, "Unable to open input file: %s\n", argv[2]);
00151       goto fail_out;
00152    }
00153    
00154    if (split_ext(file_out, &name_out, &ext_out)) {
00155       ast_cli(fd, "'%s' is an invalid filename!\n", argv[3]);
00156       goto fail_out;
00157    }
00158    if (!(fs_out = ast_writefile(name_out, ext_out, NULL, O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) {
00159       ast_cli(fd, "Unable to open output file: %s\n", argv[3]);
00160       goto fail_out;
00161    }
00162 
00163    start = ast_tvnow();
00164    
00165    while ((f = ast_readframe(fs_in))) {
00166       if (ast_writestream(fs_out, f)) {
00167          ast_cli(fd, "Failed to convert %s.%s to %s.%s!\n", name_in, ext_in, name_out, ext_out);
00168          goto fail_out;
00169       }
00170    }
00171 
00172    cost = ast_tvdiff_ms(ast_tvnow(), start);
00173    ast_cli(fd, "Converted %s.%s to %s.%s in %dms\n", name_in, ext_in, name_out, ext_out, cost);
00174    ret = RESULT_SUCCESS;
00175 
00176 fail_out:
00177    if (fs_out) {
00178       ast_closestream(fs_out);
00179       if (ret != RESULT_SUCCESS)
00180          ast_filedelete(name_out, ext_out);
00181    }
00182 
00183    if (fs_in) 
00184       ast_closestream(fs_in);
00185 
00186    ast_module_unref(ast_module_info->self);
00187 
00188    return ret;
00189 }

static int cli_audio_convert_deprecated ( int  fd,
int  argc,
char *  argv[] 
) [static]

Convert a file from one format to another.

Definition at line 57 of file res_convert.c.

References ast_cli(), ast_closestream(), ast_filedelete(), ast_module_ref(), ast_module_unref(), ast_readfile(), ast_readframe(), ast_strdupa, ast_strlen_zero(), ast_writefile(), ast_writestream(), f, RESULT_FAILURE, RESULT_SHOWUSAGE, RESULT_SUCCESS, and split_ext().

00058 {
00059    int ret = RESULT_FAILURE;
00060    struct ast_filestream *fs_in = NULL, *fs_out = NULL;
00061    struct ast_frame *f;
00062    struct timeval start;
00063    int cost;
00064    char *file_in = NULL, *file_out = NULL;
00065    char *name_in, *ext_in, *name_out, *ext_out;
00066    
00067    /* ugly, can be removed when CLI entries have ast_module pointers */
00068    ast_module_ref(ast_module_info->self);
00069 
00070    if (argc != 3 || ast_strlen_zero(argv[1]) || ast_strlen_zero(argv[2])) {
00071       ret = RESULT_SHOWUSAGE;
00072       goto fail_out; 
00073    }
00074 
00075    file_in = ast_strdupa(argv[1]);
00076    file_out = ast_strdupa(argv[2]);
00077 
00078    if (split_ext(file_in, &name_in, &ext_in)) {
00079       ast_cli(fd, "'%s' is an invalid filename!\n", argv[1]);
00080       goto fail_out;
00081    }
00082    if (!(fs_in = ast_readfile(name_in, ext_in, NULL, O_RDONLY, 0, 0))) {
00083       ast_cli(fd, "Unable to open input file: %s\n", argv[1]);
00084       goto fail_out;
00085    }
00086    
00087    if (split_ext(file_out, &name_out, &ext_out)) {
00088       ast_cli(fd, "'%s' is an invalid filename!\n", argv[2]);
00089       goto fail_out;
00090    }
00091    if (!(fs_out = ast_writefile(name_out, ext_out, NULL, O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) {
00092       ast_cli(fd, "Unable to open output file: %s\n", argv[2]);
00093       goto fail_out;
00094    }
00095 
00096    start = ast_tvnow();
00097    
00098    while ((f = ast_readframe(fs_in))) {
00099       if (ast_writestream(fs_out, f)) {
00100          ast_cli(fd, "Failed to convert %s.%s to %s.%s!\n", name_in, ext_in, name_out, ext_out);
00101          goto fail_out;
00102       }
00103    }
00104 
00105    cost = ast_tvdiff_ms(ast_tvnow(), start);
00106    ast_cli(fd, "Converted %s.%s to %s.%s in %dms\n", name_in, ext_in, name_out, ext_out, cost);
00107    ret = RESULT_SUCCESS;
00108 
00109 fail_out:
00110    if (fs_out) {
00111       ast_closestream(fs_out);
00112       if (ret != RESULT_SUCCESS)
00113          ast_filedelete(name_out, ext_out);
00114    }
00115 
00116    if (fs_in) 
00117       ast_closestream(fs_in);
00118 
00119    ast_module_unref(ast_module_info->self);
00120 
00121    return ret;
00122 }

static int load_module ( void   )  [static]

Definition at line 215 of file res_convert.c.

References ast_cli_register_multiple(), and cli_convert.

00216 {
00217    ast_cli_register_multiple(cli_convert, sizeof(cli_convert) / sizeof(struct ast_cli_entry));
00218    return 0;
00219 }

static int split_ext ( char *  filename,
char **  name,
char **  ext 
) [static]

Split the filename to basename and extension.

Definition at line 44 of file res_convert.c.

References ast_strlen_zero(), and strsep().

Referenced by cli_audio_convert(), and cli_audio_convert_deprecated().

00045 {
00046    *name = *ext = filename;
00047    
00048    strsep(ext, ".");
00049 
00050    if (ast_strlen_zero(*name) || ast_strlen_zero(*ext))
00051       return -1;
00052 
00053    return 0;
00054 }

static int unload_module ( void   )  [static]

Definition at line 209 of file res_convert.c.

References ast_cli_unregister_multiple(), and cli_convert.

00210 {
00211    ast_cli_unregister_multiple(cli_convert, sizeof(cli_convert) / sizeof(struct ast_cli_entry));
00212    return 0;
00213 }


Variable Documentation

struct ast_cli_entry cli_convert[] [static]

Initial value:

 {
   { { "file", "convert" , NULL },
   cli_audio_convert, "Convert audio file",
   usage_audio_convert, NULL, &cli_convert_deprecated },
}

Definition at line 203 of file res_convert.c.

Referenced by load_module(), and unload_module().

struct ast_cli_entry cli_convert_deprecated [static]

Initial value:

 {
   { "convert" , NULL },
   cli_audio_convert_deprecated, NULL,
   NULL }

Definition at line 198 of file res_convert.c.

char usage_audio_convert[] [static]

Definition at line 191 of file res_convert.c.


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