Asterisk - The Open Source Telephony Project GIT-master-7e7a603
Macros | Enumerations | Functions | Variables
app_dictate.c File Reference
Dial plan applications

Virtual Dictation Machine Application For Asterisk. More...

#include "asterisk.h"
#include <sys/stat.h>
#include "asterisk/paths.h"
#include "asterisk/file.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/say.h"
#include "asterisk/app.h"
#include "asterisk/format_cache.h"
Include dependency graph for app_dictate.c:

Go to the source code of this file.

Macros

#define ast_toggle_flag(it, flag)   if(ast_test_flag(it, flag)) ast_clear_flag(it, flag); else ast_set_flag(it, flag)
 

Enumerations

enum  dflags { DFLAG_RECORD = (1 << 0) , DFLAG_PLAY = (1 << 1) , DFLAG_TRUNC = (1 << 2) , DFLAG_PAUSE = (1 << 3) }
 
enum  dmodes { DMODE_INIT , DMODE_RECORD , DMODE_PLAY }
 

Functions

 AST_MODULE_INFO_STANDARD_EXTENDED (ASTERISK_GPL_KEY, "Virtual Dictation Machine")
 
static int dictate_exec (struct ast_channel *chan, const char *data)
 
static int load_module (void)
 
static int play_and_wait (struct ast_channel *chan, char *file, char *digits)
 
static int unload_module (void)
 

Variables

static const char app [] = "Dictate"
 

Detailed Description

Virtual Dictation Machine Application For Asterisk.

Author
Anthony Minessale II anthm.nosp@m.ct@y.nosp@m.ahoo..nosp@m.com

Definition in file app_dictate.c.

Macro Definition Documentation

◆ ast_toggle_flag

#define ast_toggle_flag (   it,
  flag 
)    if(ast_test_flag(it, flag)) ast_clear_flag(it, flag); else ast_set_flag(it, flag)

Definition at line 76 of file app_dictate.c.

Enumeration Type Documentation

◆ dflags

enum dflags
Enumerator
DFLAG_RECORD 
DFLAG_PLAY 
DFLAG_TRUNC 
DFLAG_PAUSE 

Definition at line 63 of file app_dictate.c.

63 {
64 DFLAG_RECORD = (1 << 0),
65 DFLAG_PLAY = (1 << 1),
66 DFLAG_TRUNC = (1 << 2),
67 DFLAG_PAUSE = (1 << 3),
68} dflags;
dflags
dflags
Definition: app_dictate.c:63
DFLAG_RECORD
@ DFLAG_RECORD
Definition: app_dictate.c:64
DFLAG_PAUSE
@ DFLAG_PAUSE
Definition: app_dictate.c:67
DFLAG_TRUNC
@ DFLAG_TRUNC
Definition: app_dictate.c:66
DFLAG_PLAY
@ DFLAG_PLAY
Definition: app_dictate.c:65

◆ dmodes

enum dmodes
Enumerator
DMODE_INIT 
DMODE_RECORD 
DMODE_PLAY 

Definition at line 70 of file app_dictate.c.

70 {
71 DMODE_INIT,
72 DMODE_RECORD,
73 DMODE_PLAY
74} dmodes;
dmodes
dmodes
Definition: app_dictate.c:70
DMODE_PLAY
@ DMODE_PLAY
Definition: app_dictate.c:73
DMODE_RECORD
@ DMODE_RECORD
Definition: app_dictate.c:72
DMODE_INIT
@ DMODE_INIT
Definition: app_dictate.c:71

Function Documentation

◆ AST_MODULE_INFO_STANDARD_EXTENDED()

AST_MODULE_INFO_STANDARD_EXTENDED ( ASTERISK_GPL_KEY  ,
"Virtual Dictation Machine"   
)

◆ dictate_exec()

static int dictate_exec ( struct ast_channel *  chan,
const char *  data 
)
static

Definition at line 87 of file app_dictate.c.

88{
89 char *path = NULL, filein[256], *filename = "";
90 char *parse;
91 AST_DECLARE_APP_ARGS(args,
92 AST_APP_ARG(base);
93 AST_APP_ARG(filename);
94 );
95 char dftbase[256];
96 char *base;
97 struct ast_flags flags = {0};
98 struct ast_filestream *fs;
99 struct ast_frame *f = NULL;
100 int ffactor = 320 * 80,
101 res = 0,
102 done = 0,
103 lastop = 0,
104 samples = 0,
105 speed = 1,
106 digit = 0,
107 len = 0,
108 maxlen = 0,
109 mode = 0;
110 struct ast_format *oldr;
111
112 snprintf(dftbase, sizeof(dftbase), "%s/dictate", ast_config_AST_SPOOL_DIR);
113 if (!ast_strlen_zero(data)) {
114 parse = ast_strdupa(data);
115 AST_STANDARD_APP_ARGS(args, parse);
116 } else
117 args.argc = 0;
118
119 if (args.argc && !ast_strlen_zero(args.base)) {
120 base = args.base;
121 } else {
122 base = dftbase;
123 }
124 if (args.argc > 1 && args.filename) {
125 filename = args.filename;
126 }
127 oldr = ao2_bump(ast_channel_readformat(chan));
128 if ((res = ast_set_read_format(chan, ast_format_slin)) < 0) {
129 ast_log(LOG_WARNING, "Unable to set to linear mode.\n");
130 ao2_cleanup(oldr);
131 return -1;
132 }
133
134 if (ast_channel_state(chan) != AST_STATE_UP) {
135 ast_answer(chan);
136 }
137 ast_safe_sleep(chan, 200);
138 for (res = 0; !res;) {
139 if (ast_strlen_zero(filename)) {
140 if (ast_app_getdata(chan, "dictate/enter_filename", filein, sizeof(filein), 0) ||
141 ast_strlen_zero(filein)) {
142 res = -1;
143 break;
144 }
145 } else {
146 ast_copy_string(filein, filename, sizeof(filein));
147 filename = "";
148 }
149 ast_mkdir(base, 0755);
150 len = strlen(base) + strlen(filein) + 2;
151 if (!path || len > maxlen) {
152 ast_free(path);
153 path = ast_malloc(len);
154 memset(path, 0, len);
155 maxlen = len;
156 } else {
157 memset(path, 0, maxlen);
158 }
159
160 snprintf(path, len, "%s/%s", base, filein);
161 fs = ast_writefile(path, "raw", NULL, O_CREAT|O_APPEND, 0, AST_FILE_MODE);
162 mode = DMODE_PLAY;
163 memset(&flags, 0, sizeof(flags));
164 ast_set_flag(&flags, DFLAG_PAUSE);
165 digit = play_and_wait(chan, "dictate/forhelp", AST_DIGIT_ANY);
166 done = 0;
167 speed = 1;
168 res = 0;
169 lastop = 0;
170 samples = 0;
171 while (!done && ((res = ast_waitfor(chan, -1)) > -1) && fs && (f = ast_read(chan))) {
172 if (digit) {
173 struct ast_frame fr = {AST_FRAME_DTMF, { .integer = digit } };
174 ast_queue_frame(chan, &fr);
175 digit = 0;
176 }
177 if (f->frametype == AST_FRAME_DTMF) {
178 int got = 1;
179 switch(mode) {
180 case DMODE_PLAY:
181 switch (f->subclass.integer) {
182 case '1':
183 ast_set_flag(&flags, DFLAG_PAUSE);
184 mode = DMODE_RECORD;
185 break;
186 case '2':
187 speed++;
188 if (speed > 4) {
189 speed = 1;
190 }
191 res = ast_say_number(chan, speed, AST_DIGIT_ANY, ast_channel_language(chan), NULL);
192 break;
193 case '7':
194 samples -= ffactor;
195 if(samples < 0) {
196 samples = 0;
197 }
198 ast_seekstream(fs, samples, SEEK_SET);
199 break;
200 case '8':
201 samples += ffactor;
202 ast_seekstream(fs, samples, SEEK_SET);
203 break;
204
205 default:
206 got = 0;
207 }
208 break;
209 case DMODE_RECORD:
210 switch (f->subclass.integer) {
211 case '1':
212 ast_set_flag(&flags, DFLAG_PAUSE);
213 mode = DMODE_PLAY;
214 break;
215 case '8':
216 ast_toggle_flag(&flags, DFLAG_TRUNC);
217 lastop = 0;
218 break;
219 default:
220 got = 0;
221 }
222 break;
223 default:
224 got = 0;
225 }
226 if (!got) {
227 switch (f->subclass.integer) {
228 case '#':
229 done = 1;
230 continue;
231 break;
232 case '*':
233 ast_toggle_flag(&flags, DFLAG_PAUSE);
234 if (ast_test_flag(&flags, DFLAG_PAUSE)) {
235 digit = play_and_wait(chan, "dictate/pause", AST_DIGIT_ANY);
236 } else {
237 digit = play_and_wait(chan, mode == DMODE_PLAY ? "dictate/playback" : "dictate/record", AST_DIGIT_ANY);
238 }
239 break;
240 case '0':
241 ast_set_flag(&flags, DFLAG_PAUSE);
242 digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
243 switch(mode) {
244 case DMODE_PLAY:
245 digit = play_and_wait(chan, "dictate/play_help", AST_DIGIT_ANY);
246 break;
247 case DMODE_RECORD:
248 digit = play_and_wait(chan, "dictate/record_help", AST_DIGIT_ANY);
249 break;
250 }
251 if (digit == 0) {
252 digit = play_and_wait(chan, "dictate/both_help", AST_DIGIT_ANY);
253 } else if (digit < 0) {
254 done = 1;
255 break;
256 }
257 break;
258 }
259 }
260
261 } else if (f->frametype == AST_FRAME_VOICE) {
262 switch(mode) {
263 struct ast_frame *fr;
264 int x;
265 case DMODE_PLAY:
266 if (lastop != DMODE_PLAY) {
267 if (ast_test_flag(&flags, DFLAG_PAUSE)) {
268 digit = play_and_wait(chan, "dictate/playback_mode", AST_DIGIT_ANY);
269 if (digit == 0) {
270 digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
271 } else if (digit < 0) {
272 break;
273 }
274 }
275 if (lastop != DFLAG_PLAY) {
276 lastop = DFLAG_PLAY;
277 ast_closestream(fs);
278 if (!(fs = ast_openstream(chan, path, ast_channel_language(chan))))
279 break;
280 ast_seekstream(fs, samples, SEEK_SET);
281 ast_channel_stream_set(chan, NULL);
282 }
283 lastop = DMODE_PLAY;
284 }
285
286 if (!ast_test_flag(&flags, DFLAG_PAUSE)) {
287 for (x = 0; x < speed; x++) {
288 if ((fr = ast_readframe(fs))) {
289 ast_write(chan, fr);
290 samples += fr->samples;
291 ast_frfree(fr);
292 fr = NULL;
293 } else {
294 samples = 0;
295 ast_seekstream(fs, 0, SEEK_SET);
296 }
297 }
298 }
299 break;
300 case DMODE_RECORD:
301 if (lastop != DMODE_RECORD) {
302 int oflags = O_CREAT | O_WRONLY;
303 if (ast_test_flag(&flags, DFLAG_PAUSE)) {
304 digit = play_and_wait(chan, "dictate/record_mode", AST_DIGIT_ANY);
305 if (digit == 0) {
306 digit = play_and_wait(chan, "dictate/paused", AST_DIGIT_ANY);
307 } else if (digit < 0) {
308 break;
309 }
310 }
311 lastop = DMODE_RECORD;
312 ast_closestream(fs);
313 if ( ast_test_flag(&flags, DFLAG_TRUNC)) {
314 oflags |= O_TRUNC;
315 digit = play_and_wait(chan, "dictate/truncating_audio", AST_DIGIT_ANY);
316 } else {
317 oflags |= O_APPEND;
318 }
319 fs = ast_writefile(path, "raw", NULL, oflags, 0, AST_FILE_MODE);
320 if (ast_test_flag(&flags, DFLAG_TRUNC)) {
321 ast_seekstream(fs, 0, SEEK_SET);
322 ast_clear_flag(&flags, DFLAG_TRUNC);
323 } else {
324 ast_seekstream(fs, 0, SEEK_END);
325 }
326 }
327 if (!ast_test_flag(&flags, DFLAG_PAUSE)) {
328 res = ast_writestream(fs, f);
329 }
330 break;
331 }
332
333 }
334
335 ast_frfree(f);
336 }
337 }
338 ast_free(path);
339 if (oldr) {
340 ast_set_read_format(chan, oldr);
341 ao2_ref(oldr, -1);
342 }
343 return 0;
344}
digit
char digit
Definition: app_alarmreceiver.c:131
play_and_wait
static int play_and_wait(struct ast_channel *chan, char *file, char *digits)
Definition: app_dictate.c:78
ast_toggle_flag
#define ast_toggle_flag(it, flag)
Definition: app_dictate.c:76
AST_FILE_MODE
#define AST_FILE_MODE
Definition: asterisk.h:32
ast_free
#define ast_free(a)
Definition: astmm.h:180
ast_strdupa
#define ast_strdupa(s)
duplicate a string in memory from the stack
Definition: astmm.h:298
ast_malloc
#define ast_malloc(len)
A wrapper for malloc()
Definition: astmm.h:191
ast_log
#define ast_log
Definition: astobj2.c:42
ao2_cleanup
#define ao2_cleanup(obj)
Definition: astobj2.h:1934
ao2_ref
#define ao2_ref(o, delta)
Reference/unreference an object and return the old refcount.
Definition: astobj2.h:459
ao2_bump
#define ao2_bump(obj)
Bump refcount on an AO2 object by one, returning the object.
Definition: astobj2.h:480
ast_channel_stream_set
void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value)
Definition: channel_internal_api.c:610
ast_waitfor
int ast_waitfor(struct ast_channel *chan, int ms)
Wait for input on a channel.
Definition: channel.c:3162
ast_queue_frame
int ast_queue_frame(struct ast_channel *chan, struct ast_frame *f)
Queue one or more frames to a channel's frame queue.
Definition: channel.c:1139
ast_write
int ast_write(struct ast_channel *chan, struct ast_frame *frame)
Write a frame to a channel This function writes the given frame to the indicated channel.
Definition: channel.c:5144
ast_read
struct ast_frame * ast_read(struct ast_channel *chan)
Reads a frame.
Definition: channel.c:4257
ast_set_read_format
int ast_set_read_format(struct ast_channel *chan, struct ast_format *format)
Sets read format on channel chan.
Definition: channel.c:5762
ast_channel_language
const char * ast_channel_language(const struct ast_channel *chan)
ast_answer
int ast_answer(struct ast_channel *chan)
Answer a channel.
Definition: channel.c:2805
ast_safe_sleep
int ast_safe_sleep(struct ast_channel *chan, int ms)
Wait for a specified amount of time, looking for hangups.
Definition: channel.c:1574
ast_channel_readformat
struct ast_format * ast_channel_readformat(struct ast_channel *chan)
Definition: channel_internal_api.c:841
ast_channel_state
ast_channel_state
ast_channel states
Definition: channelstate.h:35
AST_STATE_UP
@ AST_STATE_UP
Definition: channelstate.h:42
ast_openstream
struct ast_filestream * ast_openstream(struct ast_channel *chan, const char *filename, const char *preflang)
Opens stream for use in seeking, playing.
Definition: file.c:790
ast_readframe
struct ast_frame * ast_readframe(struct ast_filestream *s)
Read a frame from a filestream.
Definition: file.c:936
ast_writestream
int ast_writestream(struct ast_filestream *fs, struct ast_frame *f)
Writes a frame to a stream.
Definition: file.c:244
ast_seekstream
int ast_seekstream(struct ast_filestream *fs, off_t sample_offset, int whence)
Seeks into stream.
Definition: file.c:1075
ast_writefile
struct ast_filestream * ast_writefile(const char *filename, const char *type, const char *comment, int flags, int check, mode_t mode)
Starts writing a file.
Definition: file.c:1423
ast_closestream
int ast_closestream(struct ast_filestream *f)
Closes a stream.
Definition: file.c:1111
AST_DIGIT_ANY
#define AST_DIGIT_ANY
Definition: file.h:48
ast_format_slin
struct ast_format * ast_format_slin
Built-in cached signed linear 8kHz format.
Definition: format_cache.c:41
len
static int len(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t buflen)
Definition: func_strings.c:1567
AST_APP_ARG
#define AST_APP_ARG(name)
Define an application argument.
Definition: include/asterisk/app.h:1230
ast_app_getdata
enum ast_getdata_result ast_app_getdata(struct ast_channel *c, const char *prompt, char *s, int maxlen, int timeout)
Plays a stream and gets DTMF data from a channel.
Definition: main/app.c:188
AST_DECLARE_APP_ARGS
#define AST_DECLARE_APP_ARGS(name, arglist)
Declare a structure to hold an application's arguments.
Definition: include/asterisk/app.h:1247
AST_STANDARD_APP_ARGS
#define AST_STANDARD_APP_ARGS(args, parse)
Performs the 'standard' argument separation process for an application.
Definition: include/asterisk/app.h:1283
AST_FRAME_DTMF
#define AST_FRAME_DTMF
Definition: include/asterisk/frame.h:139
ast_frfree
#define ast_frfree(fr)
Definition: include/asterisk/frame.h:561
AST_FRAME_VOICE
@ AST_FRAME_VOICE
Definition: include/asterisk/frame.h:101
LOG_WARNING
#define LOG_WARNING
Definition: include/asterisk/logger.h:275
ast_config_AST_SPOOL_DIR
const char * ast_config_AST_SPOOL_DIR
Definition: options.c:154
NULL
#define NULL
Definition: resample.c:96
ast_say_number
int ast_say_number(struct ast_channel *chan, int num, const char *ints, const char *lang, const char *options)
says a number
Definition: channel.c:8235
ast_strlen_zero
static force_inline int attribute_pure ast_strlen_zero(const char *s)
Definition: strings.h:65
ast_copy_string
void ast_copy_string(char *dst, const char *src, size_t size)
Size-limited null-terminating string copy.
Definition: strings.h:425
ast_filestream
This structure is allocated by file.c in one chunk, together with buf_size and desc_size bytes of mem...
Definition: mod_format.h:101
ast_flags
Structure used to handle boolean flags.
Definition: utils.h:199
ast_flags::flags
unsigned int flags
Definition: utils.h:200
ast_format
Definition of a media format.
Definition: format.c:43
ast_frame_subclass::integer
int integer
Definition: include/asterisk/frame.h:152
ast_frame
Data structure associated with a single frame of data.
Definition: include/asterisk/frame.h:165
ast_frame::subclass
struct ast_frame_subclass subclass
Definition: include/asterisk/frame.h:169
ast_frame::samples
int samples
Definition: include/asterisk/frame.h:173
ast_frame::frametype
enum ast_frame_type frametype
Definition: include/asterisk/frame.h:167
ast_frame::flags
unsigned int flags
Definition: include/asterisk/frame.h:189
done
int done
Definition: test_amihooks.c:48
args
const char * args
Definition: test_func_file.c:46
ast_test_flag
#define ast_test_flag(p, flag)
Definition: utils.h:63
ast_clear_flag
#define ast_clear_flag(p, flag)
Definition: utils.h:77
ast_mkdir
int ast_mkdir(const char *path, int mode)
Recursively create directory path.
Definition: utils.c:2479
ast_set_flag
#define ast_set_flag(p, flag)
Definition: utils.h:70

References ao2_bump, ao2_cleanup, ao2_ref, args, ast_answer(), AST_APP_ARG, ast_app_getdata(), ast_channel_language(), ast_channel_readformat(), ast_channel_stream_set(), ast_clear_flag, ast_closestream(), ast_config_AST_SPOOL_DIR, ast_copy_string(), AST_DECLARE_APP_ARGS, AST_DIGIT_ANY, AST_FILE_MODE, ast_format_slin, AST_FRAME_DTMF, AST_FRAME_VOICE, ast_free, ast_frfree, ast_log, ast_malloc, ast_mkdir(), ast_openstream(), ast_queue_frame(), ast_read(), ast_readframe(), ast_safe_sleep(), ast_say_number(), ast_seekstream(), ast_set_flag, ast_set_read_format(), AST_STANDARD_APP_ARGS, AST_STATE_UP, ast_strdupa, ast_strlen_zero(), ast_test_flag, ast_toggle_flag, ast_waitfor(), ast_write(), ast_writefile(), ast_writestream(), DFLAG_PAUSE, DFLAG_PLAY, DFLAG_TRUNC, digit, DMODE_PLAY, DMODE_RECORD, done, ast_frame::flags, ast_flags::flags, ast_frame::frametype, ast_frame_subclass::integer, len(), LOG_WARNING, NULL, play_and_wait(), ast_frame::samples, and ast_frame::subclass.

Referenced by load_module().

◆ load_module()

static int load_module ( void  )
static

Definition at line 353 of file app_dictate.c.

354{
355 return ast_register_application_xml(app, dictate_exec);
356}
app
static const char app[]
Definition: app_dictate.c:61
dictate_exec
static int dictate_exec(struct ast_channel *chan, const char *data)
Definition: app_dictate.c:87
ast_register_application_xml
#define ast_register_application_xml(app, execute)
Register an application using XML documentation.
Definition: module.h:626

References app, ast_register_application_xml, and dictate_exec().

◆ play_and_wait()

static int play_and_wait ( struct ast_channel *  chan,
char *  file,
char *  digits 
)
static

Definition at line 78 of file app_dictate.c.

79{
80 int res = -1;
81 if (!ast_streamfile(chan, file, ast_channel_language(chan))) {
82 res = ast_waitstream(chan, digits);
83 }
84 return res;
85}
ast_streamfile
int ast_streamfile(struct ast_channel *c, const char *filename, const char *preflang)
Streams a file.
Definition: file.c:1293
ast_waitstream
int ast_waitstream(struct ast_channel *c, const char *breakon)
Waits for a stream to stop or digit to be pressed.
Definition: file.c:1840
make_ari_stubs.file
file
Definition: make_ari_stubs.py:25

References ast_channel_language(), ast_streamfile(), ast_waitstream(), and make_ari_stubs::file.

Referenced by dictate_exec().

◆ unload_module()

static int unload_module ( void  )
static

Definition at line 346 of file app_dictate.c.

347{
348 int res;
349 res = ast_unregister_application(app);
350 return res;
351}
ast_unregister_application
int ast_unregister_application(const char *app)
Unregister an application.
Definition: pbx_app.c:392

References app, and ast_unregister_application().

Variable Documentation

◆ app

const char app[] = "Dictate"
static

Definition at line 61 of file app_dictate.c.

Referenced by load_module(), and unload_module().

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