diff options
Diffstat (limited to 'pjmedia/include/pjmedia/sound_port.h')
| -rw-r--r-- | pjmedia/include/pjmedia/sound_port.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pjmedia/include/pjmedia/sound_port.h b/pjmedia/include/pjmedia/sound_port.h index 15339bcc..c144275d 100644 --- a/pjmedia/include/pjmedia/sound_port.h +++ b/pjmedia/include/pjmedia/sound_port.h @@ -183,6 +183,40 @@ PJ_DECL(pjmedia_snd_stream*) pjmedia_snd_port_get_snd_stream( /** + * Enable accoustic echo cancellation (AEC) to the specified sound. + * The AEC can only be enabled for sound streams with full-duplex direction. + * + * And note, you should only change the AEC settings when the sound port + * is not connected to any downstream ports. + * + * @param snd_port The sound device port. + * @param pool Pool to re-create the AEC if necessary. + * @param tail_ms Maximum echo tail length to be supported, in + * miliseconds. If zero is specified, the AEC would + * be disabled. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjmedia_snd_port_set_aec(pjmedia_snd_port *snd_port, + pj_pool_t *pool, + unsigned tail_ms); + + +/** + * Get current AEC tail length, in miliseconds. The tail length will be zero + * if AEC is not enabled. + * + * @param snd_port The sound device port. + * @param p_length Pointer to receive the tail length. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjmedia_snd_port_get_aec_tail(pjmedia_snd_port *snd_port, + unsigned *p_length); + + + +/** * Connect a port to the sound device port. If the sound device port has a * sound recorder device, then this will start periodic function call to * the port's put_frame() function. If the sound device has a sound player |