mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-25 03:01:03 +00:00
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
|
|
#ifndef __GST_RTP_DTMF_COMMON_H__
|
|
#define __GST_RTP_DTMF_COMMON_H__
|
|
|
|
#define MIN_INTER_DIGIT_INTERVAL 100 /* ms */
|
|
#define MIN_PULSE_DURATION 250 /* ms */
|
|
|
|
#define MIN_VOLUME 0
|
|
#define MAX_VOLUME 36
|
|
|
|
#define MIN_EVENT 0
|
|
#define MAX_EVENT 15
|
|
#define MIN_EVENT_STRING "0"
|
|
#define MAX_EVENT_STRING "15"
|
|
|
|
#ifndef M_PI
|
|
#define M_PI 3.14159265358979323846 /* pi */
|
|
#endif
|
|
|
|
typedef struct
|
|
{
|
|
unsigned event:8; /* Current DTMF event */
|
|
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
|
unsigned volume:6; /* power level of the tone, in dBm0 */
|
|
unsigned r:1; /* Reserved-bit */
|
|
unsigned e:1; /* End-bit */
|
|
#elif G_BYTE_ORDER == G_BIG_ENDIAN
|
|
unsigned e:1; /* End-bit */
|
|
unsigned r:1; /* Reserved-bit */
|
|
unsigned volume:6; /* power level of the tone, in dBm0 */
|
|
#else
|
|
#error "G_BYTE_ORDER should be big or little endian."
|
|
#endif
|
|
unsigned duration:16; /* Duration of digit, in timestamp units */
|
|
} GstRTPDTMFPayload;
|
|
|
|
#endif /* __GST_RTP_DTMF_COMMON_H__ */
|