| spandsp 0.0.6
    | 
Go to the source code of this file.
| Typedefs | |
| typedef struct fax_modems_state_s | fax_modems_state_t | 
| Functions | |
| const char * | fax_modem_to_str (int modem) | 
| Convert a FAX modem type to a short text description. | |
| SPAN_DECLARE_NONSTD (int) fax_modems_v17_v21_rx(void *user_data | |
| Get the next bit of a transmitted serial bit stream. | |
| SPAN_DECLARE_NONSTD (void) fax_modems_hdlc_tx_frame(void *user_data | |
| void | fax_modems_start_rx_modem (fax_modems_state_t *s, int which) | 
| void | fax_modems_set_tep_mode (fax_modems_state_t *s, int use_tep) | 
| int | fax_modems_restart (fax_modems_state_t *s) | 
| logging_state_t * | fax_modems_get_logging_state (fax_modems_state_t *s) | 
| Get a pointer to the logging context associated with a FAX modems context. | |
| fax_modems_state_t * | fax_modems_init (fax_modems_state_t *s, int use_tep, hdlc_frame_handler_t hdlc_accept, hdlc_underflow_handler_t hdlc_tx_underflow, put_bit_func_t non_ecm_put_bit, get_bit_func_t non_ecm_get_bit, tone_report_func_t tone_callback, void *user_data) | 
| int | fax_modems_release (fax_modems_state_t *s) | 
| int | fax_modems_free (fax_modems_state_t *s) | 
| Variables | |
| const int16_t | amp [] | 
| const int16_t int | len | 
| const uint8_t * | msg | 
| typedef struct fax_modems_state_s fax_modems_state_t | 
The set of modems needed for FAX, plus the auxilliary stuff, like tone generation.
| const char * fax_modem_to_str | ( | int | modem | ) | 
Convert a FAX modem type to a short text description.
Convert a FAX modem type to a short text description.
| modem | The modem code. | 
| logging_state_t * fax_modems_get_logging_state | ( | fax_modems_state_t * | s | ) | 
Get a pointer to the logging context associated with a FAX modems context.
Get a pointer to the logging context associated with a FAX modems context.
| s | The FAX modems context. | 
References fax_modems_state_s::logging.
| SPAN_DECLARE_NONSTD | ( | int | ) | 
Get the next bit of a transmitted serial bit stream.
Get the next bit of data from a T.38 rate adapting non-ECM buffer context.
Get a bit of received non-ECM image data.
Process a block of received V.8 audio samples.
Fake processing of a missing block of received V.29 modem audio samples.
Fake processing of a missing block of received V.27ter modem audio samples.
Generate a block of V.22bis modem audio samples.
Fake processing of a missing block of received V.22bis modem audio samples.
Process a block of received V.18 audio samples.
Fake processing of a missing block of received V.17 modem audio samples.
Generate a block of FAX audio samples.
Apply fake received audio processing.
Process a received T.38 IFP packet from a reliable stream (e.g. TCP).
Generate a block of T.31 modem audio samples.
Fake processing of a missing block of received T.31 modem audio samples.
Dummy receive fillin callback.
Dummy receive callback.
Process a block of samples through an instance of the modem connect tones detector.
Get the next sequence of bytes for transmission.
Get the next byte for transmission.
Fake processing of a missing block of received FSK modem audio samples.
Process a block of received FSK modem audio samples.
Apply T.30 transmit processing to generate a block of audio samples.
Apply fake T.30 receive processing.
Get the next bit of a transmitted serial bit stream.
| user_data | An opaque point which must point to a transmitter context. | 
Apply fake T.30 receive processing when a block of audio samples is missing (e.g due to packet loss).
| s | The FAX context. | 
| len | The number of samples to fake. | 
Apply T.30 transmit processing to generate a block of audio samples.
| s | The FAX context. | 
| amp | The audio sample buffer. | 
| max_len | The number of samples to be generated. | 
Process a block of received FSK modem audio samples.
| s | The modem context. | 
| amp | The audio sample buffer. | 
| len | The number of samples in the buffer. | 
Fake processing of a missing block of received FSK modem audio samples (e.g due to packet loss).
| s | The modem context. | 
| len | The number of samples to fake. | 
| s | A pointer to an HDLC transmitter context. | 
| s | A pointer to an HDLC transmitter context. | 
| buf | The buffer for the data. | 
| max_len | The number of bytes to get. | 
| s | The context. | 
| amp | An array of signal samples. | 
| len | The number of samples in the array. | 
A dummy routine to use as a receive callback, when we aren't really trying to process what is received. It just absorbs and ignores the data.
| user_data | The context. | 
| amp | The signal.buffer | 
| len | The length of the signal buffer | 
A dummy routine to use as a receive fillin callback, when we aren't really trying to process what is received. It just absorbs and ignores the request.
| user_data | The context. | 
| len | The length of the signal buffer | 
Fake processing of a missing block of received T.31 modem audio samples (e.g due to packet loss).
| s | The T.31 modem context. | 
| len | The number of samples to fake. | 
Generate a block of T.31 modem audio samples.
| s | The T.31 modem context. | 
| amp | The audio sample buffer. | 
| max_len | The number of samples to be generated. | 
| s | The T.38 context. | 
| buf | The packet contents. | 
| len | The length of the packet contents. | 
| seq_no | The packet sequence number, used for logging purposes. | 
Apply fake processing when a block of audio samples is missing (e.g due to packet loss).
| s | The T.38 context. | 
| len | The number of samples to fake. | 
Generate a block of FAX audio samples.
| s | The T.38 context. | 
| amp | The audio sample buffer. | 
| max_len | The number of samples to be generated. | 
Fake processing of a missing block of received V.17 modem audio samples. (e.g due to packet loss).
| s | The modem context. | 
| len | The number of samples to fake. | 
Process a block of received V.18 audio samples.
| s | The V.18 context. | 
| amp | The audio sample buffer. | 
| len | The number of samples in the buffer. | 
Fake processing of a missing block of received V.22bis modem audio samples. (e.g due to packet loss).
| s | The modem context. | 
| len | The number of samples to fake. | 
Generate a block of V.22bis modem audio samples.
| s | The modem context. | 
| amp | The audio sample buffer. | 
| len | The number of samples to be generated. | 
Fake processing of a missing block of received V.27ter modem audio samples. (e.g due to packet loss).
| s | The modem context. | 
| len | The number of samples to fake. | 
Fake processing of a missing block of received V.29 modem audio samples. (e.g due to packet loss).
| s | The modem context. | 
| len | The number of samples to fake. | 
Process a block of received V.8 audio samples.
| s | The V.8 context. | 
| amp | The audio sample buffer. | 
| len | The number of samples in the buffer. | 
Get the next bit of a transmitted serial bit stream.
Apply T.30 transmit processing to generate a block of audio samples.
Apply fake T.30 receive processing.
Apply T.30 receive processing to a block of audio samples.
| s | The FAX context. | 
| amp | The audio sample buffer. | 
| len | The number of samples in the buffer. | 
Apply fake T.30 receive processing when a block of audio samples is missing (e.g due to packet loss).
| s | The FAX context. | 
| len | The number of samples to fake. | 
Apply T.30 transmit processing to generate a block of audio samples.
| s | The FAX context. | 
| amp | The audio sample buffer. | 
| max_len | The number of samples to be generated. |