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spandsp 0.0.6
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#include <sig_tone.h>
Public Attributes | ||
| tone_report_func_t | sig_update | |
| The callback function used to handle signalling changes. | ||
| void * | user_data | |
| A user specified opaque pointer passed to the callback function. | ||
| const sig_tone_descriptor_t * | desc | |
| Tone descriptor. | ||
| int | current_rx_tone | |
| The current receive tone. | ||
| int | high_low_timer | |
| The timeout for switching from the high level to low level tone detector. | ||
| int | current_notch_filter | |
| ??? | ||
| struct { | ||
| float notch_z1 [2] | ||
| The z's for the notch filter. | ||
| float notch_z2 [2] | ||
| The z's for the notch filter. | ||
| power_meter_t power | ||
| The power output of the notch. | ||
| } | tone [3] | |
| float | flat_z [2] | |
| The z's for the weighting/bandpass filter. | ||
| power_meter_t | flat_power | |
| The output power of the flat (unfiltered or flat filtered) path. | ||
| int | tone_persistence_timeout | |
| Persistence check for tone present. | ||
| int | last_sample_tone_present | |
| The tone pattern on the last audio sample. | ||
| int32_t | flat_detection_threshold | |
| The minimum reading from the power meter for detection in flat mode. | ||
| int32_t | sharp_detection_threshold | |
| The minimum reading from the power meter for detection in sharp mode. | ||
| int32_t | detection_ratio | |
| The minimum ratio between notched power and total power for detection. | ||
| int | flat_mode | |
| TRUE if in flat mode. FALSE if in sharp mode. | ||
| int | notch_enabled | |
| TRUE if the notch filter is enabled in the media path. | ||
| int | flat_mode_timeout | |
| ??? | ||
| int | notch_insertion_timeout | |
| ??? | ||
| int | signalling_state | |
| ??? | ||
| int | signalling_state_duration | |
| ??? | ||
Signalling tone receive state