#include <dtmf.h>
Inheritance diagram for PDTMFEncoder:

Public Types | |
| enum | { DefaultToneLen = 100 } |
Public Member Functions | |
| PDTMFEncoder (const char *dtmf=NULL, unsigned milliseconds=DefaultToneLen) | |
| PDTMFEncoder (char key, unsigned milliseconds=DefaultToneLen) | |
| void | AddTone (const char *str, unsigned milliseconds=DefaultToneLen) |
| void | AddTone (char ch, unsigned milliseconds=DefaultToneLen) |
| void | AddTone (double frequency1, double frequency2=0, unsigned milliseconds=DefaultToneLen) |
| void | GenerateRingBackTone () |
| void | GenerateDialTone () |
| void | GenerateBusyTone () |
| char | DtmfChar (PINDEX i) |
| PDTMFEncoder::PDTMFEncoder | ( | const char * | dtmf = NULL, |
|
| unsigned | milliseconds = DefaultToneLen | |||
| ) |
Create PCM data for the specified DTMF sequence
| dtmf | character string to encode |
| milliseconds | length of each DTMF tone in milliseconds |
| PDTMFEncoder::PDTMFEncoder | ( | char | key, | |
| unsigned | milliseconds = DefaultToneLen | |||
| ) |
Create PCM data for the specified dtmf key
| key | character string to encode |
| milliseconds | length of each DTMF tone in milliseconds |
| void PDTMFEncoder::AddTone | ( | const char * | str, | |
| unsigned | milliseconds = DefaultToneLen | |||
| ) |
Add the PCM data for the specified tone sequence to the buffer
| str | string to encode |
| milliseconds | length of DTMF tone in milliseconds |
| void PDTMFEncoder::AddTone | ( | char | ch, | |
| unsigned | milliseconds = DefaultToneLen | |||
| ) |
Add the PCM data for the specified tone to the buffer
| ch | character to encode |
| milliseconds | length of DTMF tone in milliseconds |
| void PDTMFEncoder::AddTone | ( | double | frequency1, | |
| double | frequency2 = 0, |
|||
| unsigned | milliseconds = DefaultToneLen | |||
| ) |
Add the PCM data for the specified dual-frequency tone to the buffer frequency2 can be zero, which will generate a single frequency tone
| void PDTMFEncoder::GenerateRingBackTone | ( | ) | [inline] |
Generate PCM data for a single cadence of the US standard ring tone of 440/480hz for 2 seconds, followed by 5 seconds of silence
| void PDTMFEncoder::GenerateDialTone | ( | ) | [inline] |
Generate PCM data for 1 second of US standard dial tone of 350/440hz
| void PDTMFEncoder::GenerateBusyTone | ( | ) | [inline] |
Generate PCM data for a single cadence of the US standard busy tone of 480/620hz for 1/2 second, 1/2 second of silence
| char PDTMFEncoder::DtmfChar | ( | PINDEX | i | ) |
Convenience function to get the ASCII character for a DTMF index, where the index varies from 0 to 15
| i | index of tone |
1.5.1