spandsp
3.0.0
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Classes | |
struct | v8_cm_jm_parms_s |
struct | v8_parms_s |
Typedefs | |
typedef struct v8_cm_jm_parms_s | v8_cm_jm_parms_t |
typedef struct v8_parms_s | v8_parms_t |
typedef void(* | v8_result_handler_t) (void *user_data, v8_parms_t *result) |
typedef struct v8_state_s | v8_state_t |
Enumerations | |
enum | v8_call_function_e { V8_CALL_TBS = 0, V8_CALL_H324 = 1, V8_CALL_V18 = 2, V8_CALL_T101 = 3, V8_CALL_T30_TX = 4, V8_CALL_T30_RX = 5, V8_CALL_V_SERIES = 6, V8_CALL_FUNCTION_EXTENSION = 7 } |
enum | v8_modulation_e { V8_MOD_V17 = (1 << 0), V8_MOD_V21 = (1 << 1), V8_MOD_V22 = (1 << 2), V8_MOD_V23HDX = (1 << 3), V8_MOD_V23 = (1 << 4), V8_MOD_V26BIS = (1 << 5), V8_MOD_V26TER = (1 << 6), V8_MOD_V27TER = (1 << 7), V8_MOD_V29 = (1 << 8), V8_MOD_V32 = (1 << 9), V8_MOD_V34HDX = (1 << 10), V8_MOD_V34 = (1 << 11), V8_MOD_V90 = (1 << 12), V8_MOD_V92 = (1 << 13) } |
enum | v8_protocol_e { V8_PROTOCOL_NONE = 0, V8_PROTOCOL_LAPM_V42 = 1, V8_PROTOCOL_EXTENSION = 7 } |
enum | v8_pstn_access_e { V8_PSTN_ACCESS_CALL_DCE_CELLULAR = 0x01, V8_PSTN_ACCESS_ANSWER_DCE_CELLULAR = 0x02, V8_PSTN_ACCESS_DCE_ON_DIGITAL = 0x04 } |
enum | v8_pcm_modem_availability_e { V8_PSTN_PCM_MODEM_V90_V92_ANALOGUE = 0x01, V8_PSTN_PCM_MODEM_V90_V92_DIGITAL = 0x02, V8_PSTN_PCM_MODEM_V91 = 0x04 } |
enum | v8_status_e { V8_STATUS_IN_PROGRESS = 0, V8_STATUS_V8_OFFERED = 1, V8_STATUS_V8_CALL = 2, V8_STATUS_NON_V8_CALL = 3, V8_STATUS_FAILED = 4, V8_STATUS_CALL_FUNCTION_RECEIVED = 5, V8_STATUS_CALLING_TONE_RECEIVED = 6, V8_STATUS_FAX_CNG_TONE_RECEIVED = 7 } |
Functions | |
int | v8_continue (v8_state_t *s, v8_parms_t *parms) |
int | v8_restart (v8_state_t *s, bool calling_party, v8_parms_t *parms) |
v8_state_t * | v8_init (v8_state_t *s, bool calling_party, v8_parms_t *parms, v8_result_handler_t result_handler, void *user_data) |
Initialise a V.8 context. More... | |
int | v8_release (v8_state_t *s) |
Release a V.8 context. More... | |
int | v8_free (v8_state_t *s) |
Release a V.8 context. More... | |
logging_state_t * | v8_get_logging_state (v8_state_t *s) |
int | v8_tx (v8_state_t *s, int16_t *amp, int max_len) |
Generate a block of V.8 audio samples. More... | |
int | v8_decode_rx (v8_state_t *s, const int16_t *amp, int len) |
Decode a block of received V.8 audio samples. More... | |
int | v8_rx (v8_state_t *s, const int16_t *amp, int len) |
Process a block of received V.8 audio samples. More... | |
void | v8_log_supported_modulations (v8_state_t *s, int modulation_schemes) |
Log the list of supported modulations. More... | |
const char * | v8_status_to_str (int status) |
const char * | v8_call_function_to_str (int call_function) |
const char * | v8_modulation_to_str (int modulation_scheme) |
const char * | v8_protocol_to_str (int protocol) |
const char * | v8_pstn_access_to_str (int pstn_access) |
const char * | v8_nsf_to_str (int nsf) |
const char * | v8_pcm_modem_availability_to_str (int pcm_modem_availability) |
const char * | v8_t66_to_str (int t66) |
enum v8_status_e |
int v8_continue | ( | v8_state_t * | s, |
v8_parms_t * | parms | ||
) |
Continue with negotiation when in gateway mode.
int v8_decode_rx | ( | v8_state_t * | s, |
const int16_t * | amp, | ||
int | len | ||
) |
Decode a block of received V.8 audio samples.
Decode a block of received V.8 audio samples. N.B. This is not the function to call to run the V.8 protocol on received audio. It is for analysing audio streams, to extract the V.8 messages, for monitoring or debug applications.
s | The V.8 context. |
amp | The audio sample buffer. |
len | The number of samples in the buffer. |
int v8_free | ( | v8_state_t * | s | ) |
Release a V.8 context.
Free a V.8 context.
s | The V.8 context. |
References v8_release().
v8_state_t* v8_init | ( | v8_state_t * | s, |
bool | calling_party, | ||
v8_parms_t * | parms, | ||
v8_result_handler_t | result_handler, | ||
void * | user_data | ||
) |
Initialise a V.8 context.
Initialise a V.8 context.
s | The V.8 context. |
calling_party | True if caller mode, else answerer mode. |
parms | The allowed parameters for the call. |
result_handler | The callback routine used to handle the results of negotiation. |
user_data | An opaque pointer passed to the result_handler routine. |
void v8_log_supported_modulations | ( | v8_state_t * | s, |
int | modulation_schemes | ||
) |
Log the list of supported modulations.
Log the list of supported modulations.
s | The V.8 context. |
modulation_schemes | The list of supported modulations. |
References v8_state_s::logging, and span_log().
int v8_release | ( | v8_state_t * | s | ) |
Release a V.8 context.
Release a V.8 context.
s | The V.8 context. |
References queue_free().
Referenced by fax_release(), and v8_free().
int v8_rx | ( | v8_state_t * | s, |
const int16_t * | amp, | ||
int | len | ||
) |
Process a block of received V.8 audio samples.
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. |
int v8_tx | ( | v8_state_t * | s, |
int16_t * | amp, | ||
int | max_len | ||
) |
Generate a block of V.8 audio samples.
Generate a block of V.8 audio samples.
s | The V.8 context. |
amp | The audio sample buffer. |
max_len | The number of samples to be generated. |