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spandsp 0.0.6
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#include <modem_connect_tones.h>
Public Attributes | |
| int | tone_type |
| The tone type being detected. | |
| tone_report_func_t | tone_callback |
| Callback routine, using to report detection of the tone. | |
| void * | callback_data |
| An opaque pointer passed to tone_callback. | |
| float | znotch_1 |
| The notch filter state. | |
| float | znotch_2 |
| float | z15hz_1 |
| The 15Hz AM filter state. | |
| float | z15hz_2 |
| int32_t | notch_level |
| The in notch power estimate. | |
| int32_t | channel_level |
| The total channel power estimate. | |
| int32_t | am_level |
| The 15Hz AM power estimate. | |
| int | chunk_remainder |
| Sample counter for the small chunks of samples, after which a test is conducted. | |
| int | tone_present |
| TRUE is the tone is currently confirmed present in the audio. | |
| int | tone_on |
| int | tone_cycle_duration |
| A millisecond counter, to time the duration of tone sections. | |
| int | good_cycles |
| A count of the number of good cycles of tone reversal seen. | |
| int | hit |
| TRUE if the tone has been seen since the last time the user tested for it. | |
| fsk_rx_state_t | v21rx |
| A V.21 FSK modem context used when searching for FAX preamble. | |
| unsigned int | raw_bit_stream |
| The raw (stuffed) bit stream buffer. | |
| int | num_bits |
| The current number of bits in the octet in progress. | |
| int | flags_seen |
| Number of consecutive flags seen so far. | |
| int | framing_ok_announced |
| TRUE if framing OK has been announced. | |
Modem connect tones receiver descriptor. This defines the state of a single working instance of the tone detector.