Voice API for HMP Library Reference - Dialogic

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Function Summary by Category dx_getsvmt( ) returns current volume modification table dx_setsvcond( ) sets conditions (such as digit) for volume adjustment dx_setsvmt( ) changes default values of volume modification table 1.11 Call Progress Analysis Functions Call progress analysis functions are used to change the default definition of call progress analysis tones. See the Voice API Programming Guide for more information about call progress analysis. The call progress analysis functions are: dx_createtone( ) creates a new tone definition for a specific call progress tone dx_deletetone( ) deletes a specific call progress tone dx_querytone( ) returns tone information for a specific call progress tone 1.12 File Manipulation Functions Supported on Windows only. These file manipulation functions map to C run-time functions, and can only be used if the file is opened with the function. The arguments for these Intel® Dialogic® functions are identical to the equivalent Microsoft* Visual C++ run-time functions. dx_fileclose( ) closes the file associated with the handle dx_fileerrno( ) obtains the system error value dx_fileopen( ) opens the file specified by filep dx_fileread( ) reads data from the file associated with the handle dx_fileseek( ) moves a file pointer associated with the handle dx_filewrite( ) writes data from a buffer into a file associated with the handle 20 Voice API for HMP Library Reference — September 2004
1.13 Structure Clearance Functions Function Summary by Category These functions do not affect a device. The dx_clrcap( ) and dx_clrtpt( ) functions provide a convenient method for clearing the DX_CAP and DV_TPT data structures. These structures are discussed in Chapter 4, “Data Structures”. dx_clrcap( ) clears all fields in a DX_CAP structure dx_clrtpt( ) clears all fields in a DV_TPT structure 1.14 Extended Attribute Functions Voice library extended attribute functions return information specific to the voice device specified in the function call. ATDX_BDNAMEP( ) returns a pointer to the board device name string ATDX_BDTYPE( ) returns the board type for the device ATDX_CHNAMES( ) returns a pointer to an array of channel name strings ATDX_CHNUM( ) returns the channel number on board associated with the channel device handle ATDX_CONNTYPE( ) returns the connection type for a completed call ATDX_CPERROR( ) returns call progress analysis error ATDX_CPTERM( ) returns last call progress analysis termination ATDX_DEVTYPE( ) returns device type (board or channel) ATDX_STATE( ) returns the current state of the device ATDX_TERMMSK( ) returns the reason for last I/O function termination in a bitmap ATDX_TONEID( ) returns the tone ID (used in global tone detection) ATDX_TRCOUNT( ) returns the last record or play transfer count Voice API for HMP Library Reference — September 2004 21
Page 1 and 2: Voice API for Host Media Processing
Page 3 and 4: Contents Revision History . . . . .
Page 5 and 6: Contents dx_reciottdata( ) - record
Page 7 and 8: Tables Contents 1 Valid Dial String
Page 9 and 10: About This Publication The followin
Page 11 and 12: About This Publication For details
Page 13 and 14: 1.Function Summary by Category This
Page 15 and 16: Function Summary by Category comple
Page 17 and 18: dx_SetWaterMark( ) sets high and lo
Page 19: dx_enbtone( ) enables detection of
Page 23 and 24: 2.Function Information This chapter
Page 25 and 26: eturn a pointer to the board device
Page 27 and 28: � Example #include #include #in
Page 29 and 30: } retrieve all channel names for a
Page 31 and 32: } } /* Use chno for application-spe
Page 33 and 34: � Example #include #include #in
Page 35 and 36: ATDX_CPERROR( ) return the call pro
Page 37 and 38: } /* * Close the opened Voice Chann
Page 39 and 40: eturn the last result of call progr
Page 41 and 42: ATDX_DEVTYPE( ) return the device t
Page 43 and 44: ATDX_STATE( ) return the current st
Page 45 and 46: ATDX_TERMMSK( ) return the reason f
Page 47 and 48: } return the reason for the last I/
Page 49 and 50: eturn user-defined tone ID that ter
Page 51 and 52: ATDX_TRCOUNT( ) return the byte cou
Page 53 and 54: dx_addtone( ) add a user-defined to
Page 55 and 56: EDX_SYSTEM Error from operating sys
Page 57 and 58: dx_distone( ) dx_enbtone( ) global
Page 59 and 60: � Cautions � Errors set a DTMF
Page 61 and 62: dx_adjsv( ) adjust volume immediate
Page 63 and 64: main() { int dxxxdev; } /* * Open t
Page 65 and 66: � Cautions � Errors define a us
Page 67 and 68: dx_blddtcad( ) define a user-define
Page 69 and 70: } /* * Continue Processing * . * .
Page 71 and 72:
� Cautions � Errors define a us
Page 73 and 74:
dx_bldst( ) define a user-defined s
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dx_blddt( ) dx_bldstcad( ) dx_addto
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� Cautions None. � Errors None.
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close a channel or board device han
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� Example #include #include mai
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} . /* continue with call progress
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main() { int chdev; /* channel desc
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� Example #include #include #in
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� Errors clear all fields in a DV
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create a new tone definition for a
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} � See Also create a new tone de
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delete a specific call progress ton
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dx_deltones( ) delete all user-defi
Page 99 and 100:
dx_dial( ) dial an ASCIIZ string
Page 101 and 102:
Table 1. Valid Dial String Characte
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} /* * Change call progress analysi
Page 105 and 106:
dx_distone( ) disable detection of
Page 107 and 108:
} disable detection of a user-defin
Page 109 and 110:
� Errors enable detection of a us
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dx_fileclose( ) close a file Name:
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dx_fileerrno( ) return the system e
Page 115 and 116:
� See Also None. return the syste
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} /* Open the device using dx_open(
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* * User defined I/O functions */ i
Page 121 and 122:
dx_fileseek( ) move a file pointer
Page 123 and 124:
*This block uses standard I/O funct
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* * User defined I/O functions */ i
Page 127 and 128:
dx_getctinfo( ) get information abo
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dx_getcursv( ) return the specified
Page 131 and 132:
dx_addvoldig( ) dx_setsvmt( ) dx_ge
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collect digits from a channel digit
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} collect digits from a channel dig
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dx_setdigtyp( ) DV_DIGIT data struc
Page 139 and 140:
} retrieve the voice DLL version nu
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monitor channel events synchronousl
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dx_getfeaturelist( ) retrieve featu
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etrieve feature support information
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dx_getparm( ) get the current param
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} get the current parameter setting
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} retrieve information about the ci
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EDX_SYSTEM Error from operating sys
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dx_getxmitslot( ) get TDM bus time
Page 157 and 158:
get TDM bus time slot number of voi
Page 159 and 160:
} initialize the voice library DLL
Page 161 and 162:
� Errors connect a voice listen c
Page 163 and 164:
dx_open( ) open a voice device and
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� See Also dx_close( ) open a voi
Page 167 and 168:
� Example #include #include cre
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Parameter Description play recorded
Page 171 and 172:
� Errors play recorded voice data
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} /* Set chname to the channel name
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dx_playf( ) synchronously play voic
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} rval = dx_play(devd,&iott,tptp,mo
Page 179 and 180:
� Cautions � Errors play back r
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} play back recorded voice data fro
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play tone defined by TN_GEN structu
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} tpt[0].tp_data = DX_TONEON; tpt[1
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play the cadenced tone defined by T
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} tngencad.cycles = 255; tngencad.n
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� Errors play voice data stored i
Page 193 and 194:
dx_playwav( ) play voice data store
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} � See Also dx_playiottdata( ) d
Page 197 and 198:
place data into a circular stream b
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get tone information for a specific
Page 201 and 202:
dx_rec( ) record voice data from a
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ecord voice data from a single chan
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main() { DV_TPT tpt; DX_IOTT iott[2
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} } record voice data from a single
Page 209 and 210:
� Errors record voice data to a s
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dx_reciottdata( ) dx_recvox( ) dx_s
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Parameter Description � Cautions
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} record voice data to multiple des
Page 217 and 218:
� Errors record voice data to a s
Page 219 and 220:
dx_recwav( ) record voice data to a
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} record voice data to a single WAV
Page 223 and 224:
} � See Also reset internal data
Page 225 and 226:
� Cautions � Errors install and
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dx_setdigtyp( ) control the types o
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} control the types of digits detec
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enable detection of call status tra
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main() { int chdev[MAXCHAN]; char *
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dx_setgtdamp( ) set up the tone det
Page 237 and 238:
dx_setparm( ) set physical paramete
Page 239 and 240:
� Cautions set physical parameter
Page 241 and 242:
dx_setsvcond( ) set conditions that
Page 243 and 244:
set conditions that adjust volume o
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dx_setsvmt( ) change default values
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* * Global Variables */ change defa
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dx_setuio( ) install user-defined I
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} /*This block uses standard I/O fu
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� Errors set water mark for the c
Page 255 and 256:
� Cautions force termination of c
Page 257 and 258:
dx_unlisten( ) disconnect voice rec
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nr_scroute( ) make a full or half-d
Page 261 and 262:
make a full or half-duplex connecti
Page 263 and 264:
make a full or half-duplex connecti
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nr_scunroute( ) break a full or hal
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eak a full or half-duplex connectio
Page 269 and 270:
� See Also nr_scroute( ) break a
Page 271 and 272:
3.Events This chapter provides info
Page 273 and 274:
3.3 Unsolicited Events Events Unsol
Page 275 and 276:
4.Data Structures This chapter prov
Page 277 and 278:
channel/time slot device informatio
Page 279 and 280:
DV_TPT termination parameter table
Page 281 and 282:
Digit Digit Define c DM_C d DM_D te
Page 283 and 284:
termination parameter table — DV_
Page 285 and 286:
DX_CAP call progress analysis param
Page 287 and 288:
call progress analysis parameters
Page 289 and 290:
DX_EBLK call status transition even
Page 291 and 292:
input/output transfer table — DX_
Page 293 and 294:
DX_STREAMSTAT status of stream buff
Page 295 and 296:
DX_SVCB speed and volume adjustment
Page 297 and 298:
speed and volume adjustment conditi
Page 299 and 300:
� Example speed and volume modifi
Page 301 and 302:
DX_XPB input/output transfer parame
Page 303 and 304:
FEATURE_TABLE feature information t
Page 305 and 306:
feature information — FEATURE_TAB
Page 307 and 308:
TN_GEN tone generation template typ
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cadenced tone generation template
Page 311 and 312:
tone information — TONE_DATA TONE
Page 313 and 314:
5.Error Codes This chapter lists th
Page 315 and 316:
Error Codes EDX_SH_BADTYPE Invalid
Page 317 and 318:
6.Supplementary Reference Informati
Page 319 and 320:
Table 14. Detecting MF Digits MF Di
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Glossary A-law: Pulse Code Modulati
Page 323 and 324:
convenience function: A class of fu
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mu-law: (1) Pulse Code Modulation (
Page 327 and 328:
together again at the receiving end
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Index A adjusting speed and volume
Page 331 and 332:
data structures cadenced tone gener
Page 333 and 334:
E enabling detection user-defined t
Page 335 and 336:
play asynchronous 170 convenience f
Page 337 and 338:
terminations asynchronous play 170
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