G.168 echo canceller descriptor. This defines the working state for a line
echo canceller.
*/
-typedef struct echo_can_state echo_can_state_t;
+struct echo_can_state;
/*! Create a voice echo canceller context.
\param len The length of the canceller, in samples.
\return The new canceller context, or NULL if the canceller could not be created.
*/
-echo_can_state_t *echo_can_create(int len, int adaption_mode);
+struct echo_can_state *echo_can_create(int len, int adaption_mode);
/*! Free a voice echo canceller context.
\param ec The echo canceller context.
*/
-void echo_can_free(echo_can_state_t *ec);
+void echo_can_free(struct echo_can_state *ec);
/*! Flush (reinitialise) a voice echo canceller context.
\param ec The echo canceller context.
*/
-void echo_can_flush(echo_can_state_t *ec);
+void echo_can_flush(struct echo_can_state *ec);
/*! Set the adaption mode of a voice echo canceller context.
\param ec The echo canceller context.
\param adapt The mode.
*/
-void echo_can_adaption_mode(echo_can_state_t *ec, int adaption_mode);
+void echo_can_adaption_mode(struct echo_can_state *ec, int adaption_mode);
-void echo_can_snapshot(echo_can_state_t *ec);
+void echo_can_snapshot(struct echo_can_state *ec);
/*! Process a sample through a voice echo canceller.
\param ec The echo canceller context.
\param rx The received audio sample.
\return The clean (echo cancelled) received sample.
*/
-int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx);
+int16_t echo_can_update(struct echo_can_state *ec, int16_t tx, int16_t rx);
/*! Process to high pass filter the tx signal.
\param ec The echo canceller context.
\param tx The transmitted auio sample.
\return The HP filtered transmit sample, send this to your D/A.
*/
-int16_t echo_can_hpf_tx(echo_can_state_t *ec, int16_t tx);
+int16_t echo_can_hpf_tx(struct echo_can_state *ec, int16_t tx);
#endif /* __OSLEC_H */