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spandsp 3.0.0
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Go to the source code of this file.
Macros | |
| #define | T38_NON_ECM_TX_BUF_LEN 16384 |
Typedefs | |
| typedef struct t38_non_ecm_buffer_state_s | t38_non_ecm_buffer_state_t |
| A flow controlled non-ECM image data buffer, for buffering T.38 to analogue modem data. | |
Functions | |
| t38_non_ecm_buffer_state_t * | t38_non_ecm_buffer_init (t38_non_ecm_buffer_state_t *s, bool image_mode, int min_row_bits) |
| Initialise a T.38 rate adapting non-ECM buffer context. | |
| int | t38_non_ecm_buffer_release (t38_non_ecm_buffer_state_t *s) |
| int | t38_non_ecm_buffer_free (t38_non_ecm_buffer_state_t *s) |
| void | t38_non_ecm_buffer_set_mode (t38_non_ecm_buffer_state_t *s, bool image_mode, int min_row_bits) |
| Set the mode of a T.38 rate adapting non-ECM buffer context. | |
| void | t38_non_ecm_buffer_inject (t38_non_ecm_buffer_state_t *s, const uint8_t *buf, int len) |
| Inject data to T.38 rate adapting non-ECM buffer context. | |
| void | t38_non_ecm_buffer_push (t38_non_ecm_buffer_state_t *s) |
| Inform a T.38 rate adapting non-ECM buffer context that the incoming data has finished, and the contents of the buffer should be played out as quickly as possible. | |
| void | t38_non_ecm_buffer_report_input_status (t38_non_ecm_buffer_state_t *s, logging_state_t *logging) |
| Report the input status of a T.38 rate adapting non-ECM buffer context to the specified logging context. | |
| void | t38_non_ecm_buffer_report_output_status (t38_non_ecm_buffer_state_t *s, logging_state_t *logging) |
| Report the output status of a T.38 rate adapting non-ECM buffer context to the specified logging context. | |
| int | t38_non_ecm_buffer_get_bit (void *user_data) |
| Get the next bit of data from a T.38 rate adapting non-ECM buffer context. | |
| #define T38_NON_ECM_TX_BUF_LEN 16384 |
The buffer length much be a power of two. The chosen length is big enough for over 9s of data at the V.17 14,400bps rate.
Referenced by t38_non_ecm_buffer_get_bit(), and t38_non_ecm_buffer_inject().
| int t38_non_ecm_buffer_get_bit | ( | void * | user_data | ) |
Get the next bit of data from a T.38 rate adapting non-ECM buffer context.
| user_data | The buffer context, cast to a void pointer. |
References t38_non_ecm_buffer_state_s::bit_no, t38_non_ecm_buffer_state_s::data, t38_non_ecm_buffer_state_s::data_finished, t38_non_ecm_buffer_state_s::flow_control_fill_octet, t38_non_ecm_buffer_state_s::flow_control_fill_octets, t38_non_ecm_buffer_state_s::latest_eol_ptr, t38_non_ecm_buffer_state_s::octet, t38_non_ecm_buffer_state_s::out_octets, t38_non_ecm_buffer_state_s::out_ptr, SIG_STATUS_END_OF_DATA, and T38_NON_ECM_TX_BUF_LEN.
Referenced by faxtester_init().
| t38_non_ecm_buffer_state_t * t38_non_ecm_buffer_init | ( | t38_non_ecm_buffer_state_t * | s, |
| bool | image_mode, | ||
| int | min_row_bits ) |
Initialise a T.38 rate adapting non-ECM buffer context.
| s | The buffer context. |
| image_mode | True for image data mode, or false for TCF mode. |
| bits | The minimum number of bits per FAX image row. |
References t38_non_ecm_buffer_state_s::image_data_mode, and t38_non_ecm_buffer_state_s::min_bits_per_row.
Referenced by t38_gateway_init().
| void t38_non_ecm_buffer_inject | ( | t38_non_ecm_buffer_state_t * | s, |
| const uint8_t * | buf, | ||
| int | len ) |
Inject data to T.38 rate adapting non-ECM buffer context.
| s | The buffer context. |
| buf | The data buffer to be injected. |
| len | The length of the data to be injected. |
References t38_non_ecm_buffer_state_s::bit_stream, t38_non_ecm_buffer_state_s::data, t38_non_ecm_buffer_state_s::flow_control_fill_octet, t38_non_ecm_buffer_state_s::in_octets, t38_non_ecm_buffer_state_s::in_ptr, t38_non_ecm_buffer_state_s::in_rows, t38_non_ecm_buffer_state_s::input_phase, t38_non_ecm_buffer_state_s::latest_eol_ptr, t38_non_ecm_buffer_state_s::min_bits_per_row, t38_non_ecm_buffer_state_s::min_row_bits_fill_octets, t38_non_ecm_buffer_state_s::row_bits, and T38_NON_ECM_TX_BUF_LEN.
| void t38_non_ecm_buffer_push | ( | t38_non_ecm_buffer_state_t * | s | ) |
Inform a T.38 rate adapting non-ECM buffer context that the incoming data has finished, and the contents of the buffer should be played out as quickly as possible.
| s | The buffer context. |
References t38_non_ecm_buffer_state_s::data_finished, t38_non_ecm_buffer_state_s::in_ptr, and t38_non_ecm_buffer_state_s::latest_eol_ptr.
| void t38_non_ecm_buffer_report_input_status | ( | t38_non_ecm_buffer_state_t * | s, |
| logging_state_t * | logging ) |
Report the input status of a T.38 rate adapting non-ECM buffer context to the specified logging context.
| s | The buffer context. |
| logging | The logging context. |
References t38_non_ecm_buffer_state_s::in_octets, t38_non_ecm_buffer_state_s::in_rows, t38_non_ecm_buffer_state_s::min_row_bits_fill_octets, and span_log().
| void t38_non_ecm_buffer_report_output_status | ( | t38_non_ecm_buffer_state_t * | s, |
| logging_state_t * | logging ) |
Report the output status of a T.38 rate adapting non-ECM buffer context to the specified logging context.
| s | The buffer context. |
| logging | The logging context. |
References t38_non_ecm_buffer_state_s::flow_control_fill_octets, t38_non_ecm_buffer_state_s::out_octets, t38_non_ecm_buffer_state_s::out_rows, and span_log().
| void t38_non_ecm_buffer_set_mode | ( | t38_non_ecm_buffer_state_t * | s, |
| bool | image_mode, | ||
| int | min_row_bits ) |
Set the mode of a T.38 rate adapting non-ECM buffer context.
| s | The buffer context. |
| mode | True for image data mode, or false for TCF mode. |
| bits | The minimum number of bits per FAX image row. |
References t38_non_ecm_buffer_state_s::image_data_mode, and t38_non_ecm_buffer_state_s::min_bits_per_row.