diff options
Diffstat (limited to 'pjmedia/include')
| -rw-r--r-- | pjmedia/include/pjmedia/config.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/pjmedia/include/pjmedia/config.h b/pjmedia/include/pjmedia/config.h index ea84baa5..5ecc04bf 100644 --- a/pjmedia/include/pjmedia/config.h +++ b/pjmedia/include/pjmedia/config.h @@ -174,11 +174,16 @@ /** * Specify how long (in miliseconds) the stream should suspend the * silence detector/voice activity detector (VAD) during the initial - * period of the session. + * period of the session. This feature is useful to open bindings in + * all NAT routers between local and remote endpoint since most NATs + * do not allow incoming packet to get in before local endpoint sends + * outgoing packets. * * Specify zero to disable this feature. * - * Default: 600 msec + * Default: 600 msec (which gives good probability that some RTP + * packets will reach the destination, but without + * filling up the jitter buffer on the remote end). */ #ifndef PJMEDIA_STREAM_VAD_SUSPEND_MSEC # define PJMEDIA_STREAM_VAD_SUSPEND_MSEC 600 @@ -186,6 +191,26 @@ /** + * Specify the maximum duration of silence period in the codec. + * This is useful for example to keep NAT binding open in the firewall + * and to prevent server from disconnecting the call because no + * RTP packet is received. + * + * This only applies to codecs that use PJMEDIA's VAD (pretty much + * everything including iLBC, except Speex, which has its own DTX + * mechanism). + * + * Use (-1) to disable this feature. + * + * Default: 8000 (one second on 8KHz). + * + */ +#ifndef PJMEDIA_CODEC_MAX_SILENCE_PERIOD +# define PJMEDIA_CODEC_MAX_SILENCE_PERIOD 8000 +#endif + + +/** * Suggested or default threshold to be set for fixed silence detection * or as starting threshold for adaptive silence detection. The threshold * has the range from zero to 255. |