| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | #ifndef _DTMF_H_
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| 2 | #define _DTMF_H_
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| 3 |
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| 4 | #include <stdio.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <string.h>
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| 7 | #include <assert.h>
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| 8 | #include <unistd.h>
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| 9 | #include <errno.h>
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| 10 | #include <getopt.h>
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| 11 | #include <pthread.h>
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| 12 |
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| 13 | //#include <glib.h>
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| 14 | #include <gst/gst.h>
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| 15 |
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| 16 | #define DTMF_MIN_LENGTH 150 //unit: millisecond
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| 17 |
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| 18 | typedef void *DTMF_HANDLE;
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| 19 |
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| 20 | typedef struct {
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| 21 | gint output; //0-pulsesink; 1-filesink
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| 22 | char *path; //only used while output is filesink
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| 23 | } DTMF_EXTRA;
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| 24 |
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| 25 | /**
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| 26 | * dtmf_start:
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| 27 | * @num: the event number, [0, 15]
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| 28 | * @time_ms: the length of time of the dtmf tone, must be "==0" or ">=150" (unit: millisecond)
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| 29 | * @volume: the power level of the dtmf tone, [0, 36] indicate 0~-36 dBm0
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| 30 | * @extra_info: set the extra info for dtmf library, refer to DTMF_EXTRA
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| 31 | *
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| 32 | * Start to generate DTMF tone packet and output to pulse audio.
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| 33 | * If time_ms==0; dtmf tone will not stop until dtmf_stop() API being called
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| 34 | * If time_ms>0; dtmf tone will stop automatically when the time is up.
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| 35 | *
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| 36 | * Returns: the dtmf handle
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| 37 | *
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| 38 | */
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| 39 | DTMF_HANDLE dtmf_start(gint num, gint time_ms, gint volume, DTMF_EXTRA *extra);
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| 40 |
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| 41 | /**
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| 42 | * dtmf_stop:
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| 43 | * @handle: the dtmf handle which is got from dtmf_start() API
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| 44 | *
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| 45 | * Stop generating DTMF tone packet.
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| 46 | *
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| 47 | * Returns: N/A
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| 48 | *
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| 49 | */
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| 50 | int dtmf_stop(DTMF_HANDLE handle);
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| 51 |
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| 52 | #endif
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