Mon May 14 04:43:21 2007

Asterisk developer's documentation


app_controlplayback.c File Reference

Trivial application to control playback of a sound file. More...

#include "asterisk.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/app.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/utils.h"
#include "asterisk/options.h"

Include dependency graph for app_controlplayback.c:

Go to the source code of this file.

Functions

 AST_MODULE_INFO_STANDARD (ASTERISK_GPL_KEY,"Control Playback Application")
static int controlplayback_exec (struct ast_channel *chan, void *data)
static int is_on_phonepad (char key)
static int load_module (void)
static int unload_module (void)

Variables

static const char * app = "ControlPlayback"
static const char * descrip
static const char * synopsis = "Play a file with fast forward and rewind"


Detailed Description

Trivial application to control playback of a sound file.

Author:
Mark Spencer <markster@digium.com>

Definition in file app_controlplayback.c.


Function Documentation

AST_MODULE_INFO_STANDARD ( ASTERISK_GPL_KEY  ,
"Control Playback Application"   
)

static int controlplayback_exec ( struct ast_channel chan,
void *  data 
) [static]

Definition at line 75 of file app_controlplayback.c.

References ast_app_separate_args(), ast_control_streamfile(), ast_goto_if_exists(), ast_log(), ast_module_user_add, ast_module_user_remove, ast_opt_priority_jumping, ast_strdupa, ast_strlen_zero(), ast_module_user::chan, ast_channel::context, is_on_phonepad(), LOG_WARNING, pbx_builtin_setvar_helper(), and skipms.

Referenced by load_module().

00076 {
00077    int res = 0, priority_jump = 0;
00078    int skipms = 0;
00079    struct ast_module_user *u;
00080    char *tmp;
00081    int argc;
00082    char *argv[8];
00083    enum arg_ids {
00084       arg_file = 0,
00085       arg_skip = 1,
00086       arg_fwd = 2,
00087       arg_rev = 3,
00088       arg_stop = 4,
00089       arg_pause = 5,
00090       arg_restart = 6,
00091       options = 7,
00092    };
00093    
00094    if (ast_strlen_zero(data)) {
00095       ast_log(LOG_WARNING, "ControlPlayback requires an argument (filename)\n");
00096       return -1;
00097    }
00098 
00099    u = ast_module_user_add(chan);
00100    
00101    tmp = ast_strdupa(data);
00102    memset(argv, 0, sizeof(argv));
00103 
00104    argc = ast_app_separate_args(tmp, '|', argv, sizeof(argv) / sizeof(argv[0]));
00105 
00106    if (argc < 1) {
00107       ast_log(LOG_WARNING, "ControlPlayback requires an argument (filename)\n");
00108       ast_module_user_remove(u);
00109       return -1;
00110    }
00111 
00112    skipms = argv[arg_skip] ? atoi(argv[arg_skip]) : 3000;
00113    if (!skipms)
00114       skipms = 3000;
00115 
00116    if (!argv[arg_fwd] || !is_on_phonepad(*argv[arg_fwd]))
00117       argv[arg_fwd] = "#";
00118    if (!argv[arg_rev] || !is_on_phonepad(*argv[arg_rev]))
00119       argv[arg_rev] = "*";
00120    if (argv[arg_stop] && !is_on_phonepad(*argv[arg_stop]))
00121       argv[arg_stop] = NULL;
00122    if (argv[arg_pause] && !is_on_phonepad(*argv[arg_pause]))
00123       argv[arg_pause] = NULL;
00124    if (argv[arg_restart] && !is_on_phonepad(*argv[arg_restart]))
00125       argv[arg_restart] = NULL;
00126 
00127    if (argv[options]) {
00128       if (strchr(argv[options], 'j'))
00129          priority_jump = 1;
00130    }
00131 
00132    res = ast_control_streamfile(chan, argv[arg_file], argv[arg_fwd], argv[arg_rev], argv[arg_stop], argv[arg_pause], argv[arg_restart], skipms);
00133 
00134    /* If we stopped on one of our stop keys, return 0  */
00135    if (argv[arg_stop] && strchr(argv[arg_stop], res)) {
00136       res = 0;
00137       pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "USERSTOPPED");
00138    } else {
00139       if (res < 0) {
00140          if (priority_jump || ast_opt_priority_jumping) {
00141             if (ast_goto_if_exists(chan, chan->context, chan->exten, chan->priority + 101)) {
00142                ast_log(LOG_WARNING, "ControlPlayback tried to jump to priority n+101 as requested, but priority didn't exist\n");
00143             }
00144          }
00145          res = 0;
00146          pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "ERROR");
00147       } else
00148          pbx_builtin_setvar_helper(chan, "CPLAYBACKSTATUS", "SUCCESS");
00149    }
00150 
00151    ast_module_user_remove(u);
00152 
00153    return res;
00154 }

static int is_on_phonepad ( char  key  )  [static]

Definition at line 70 of file app_controlplayback.c.

Referenced by controlplayback_exec().

00071 {
00072    return key == 35 || key == 42 || (key >= 48 && key <= 57);
00073 }

static int load_module ( void   )  [static]

Definition at line 163 of file app_controlplayback.c.

References ast_register_application(), and controlplayback_exec().

static int unload_module ( void   )  [static]

Definition at line 156 of file app_controlplayback.c.

References ast_unregister_application().

00157 {
00158    int res;
00159    res = ast_unregister_application(app);
00160    return res;
00161 }


Variable Documentation

const char* app = "ControlPlayback" [static]

Definition at line 47 of file app_controlplayback.c.

const char* descrip [static]

Definition at line 51 of file app_controlplayback.c.

const char* synopsis = "Play a file with fast forward and rewind" [static]

Definition at line 49 of file app_controlplayback.c.


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