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Home --> Documentations --> PJSIP Reference pj::MediaConfig Struct Reference
Inheritance diagram for pj::MediaConfig:
Detailed DescriptionThis structure describes media configuration, which will be specified when calling Lib::init(). Constructor & Destructor Documentation◆ MediaConfig()
Default constructor initialises with default values Member Function Documentation◆ fromPj()
Construct from pjsua_media_config. ◆ toPj()
Export ◆ readObject()
Read this object from a container.
Implements pj::PersistentObject. ◆ writeObject()
Write this object to a container.
Implements pj::PersistentObject. Field Documentation◆ clockRate
Clock rate to be applied to the conference bridge. If value is zero, default clock rate will be used (PJSUA_DEFAULT_CLOCK_RATE, which by default is 16KHz). ◆ sndClockRate
Clock rate to be applied when opening the sound device. If value is zero, conference bridge clock rate will be used. ◆ channelCount
Channel count be applied when opening the sound device and conference bridge. ◆ audioFramePtime
Specify audio frame ptime. The value here will affect the samples per frame of both the sound device and the conference bridge. Specifying lower ptime will normally reduce the latency. Default value: PJSUA_DEFAULT_AUDIO_FRAME_PTIME ◆ maxMediaPorts
Specify maximum number of media ports to be created in the conference bridge. Since all media terminate in the bridge (calls, file player, file recorder, etc), the value must be large enough to support all of them. However, the larger the value, the more computations are performed. Default value: PJSUA_MAX_CONF_PORTS ◆ hasIoqueue
Specify whether the media manager should manage its own ioqueue for the RTP/RTCP sockets. If yes, ioqueue will be created and at least one worker thread will be created too. If no, the RTP/RTCP sockets will share the same ioqueue as SIP sockets, and no worker thread is needed. Normally application would say yes here, unless it wants to run everything from a single thread. ◆ threadCnt
Specify the number of worker threads to handle incoming RTP packets. A value of one is recommended for most applications. ◆ quality
Media quality, 0-10, according to this table: 5-10: resampling use large filter, 3-4: resampling use small filter, 1-2: resampling use linear. The media quality also sets speex codec quality/complexity to the number. Default: PJSUA_DEFAULT_CODEC_QUALITY. ◆ ptime
Specify default codec ptime. Default: 0 (codec specific) ◆ noVad
Disable VAD? Default: 0 (codec specific) ◆ ilbcMode
iLBC mode (20 or 30). Default: 30 (PJSUA_DEFAULT_ILBC_MODE) ◆ txDropPct
Percentage of RTP packet to drop in TX direction (to simulate packet lost). Default: 0 ◆ rxDropPct
Percentage of RTP packet to drop in RX direction (to simulate packet lost). Default: 0 ◆ ecOptions
Echo canceller options (see pjmedia_echo_create()). Specify PJMEDIA_ECHO_USE_SW_ECHO here if application wishes to use software echo canceller instead of device EC. Default: 0. ◆ ecTailLen
Echo canceller tail length, in miliseconds. Setting this to zero will disable echo cancellation. Default: PJSUA_DEFAULT_EC_TAIL_LEN ◆ sndRecLatency
Audio capture buffer length, in milliseconds. Default: PJMEDIA_SND_DEFAULT_REC_LATENCY ◆ sndPlayLatency
Audio playback buffer length, in milliseconds. Default: PJMEDIA_SND_DEFAULT_PLAY_LATENCY ◆ jbInit
Jitter buffer initial prefetch delay in msec. The value must be between jb_min_pre and jb_max_pre below. If the value is 0, prefetching will be disabled. Default: -1 (to use default stream settings, currently 0) ◆ jbMinPre
Jitter buffer minimum prefetch delay in msec. Default: -1 (to use default stream settings, currently codec ptime) ◆ jbMaxPre
Jitter buffer maximum prefetch delay in msec. Default: -1 (to use default stream settings, currently 80% of jbMax) ◆ jbMax
Set maximum delay that can be accomodated by the jitter buffer msec. Default: -1 (to use default stream settings, currently 500 msec) ◆ jbDiscardAlgo
Set the algorithm the jitter buffer uses to discard frames in order to adjust the latency. Default: PJMEDIA_JB_DISCARD_PROGRESSIVE ◆ sndAutoCloseTime
Specify idle time of sound device before it is automatically closed, in seconds. Use value -1 to disable the auto-close feature of sound device Default : 1 ◆ vidPreviewEnableNative
Specify whether built-in/native preview should be used if available. In some systems, video input devices have built-in capability to show preview window of the device. Using this built-in preview is preferable as it consumes less CPU power. If built-in preview is not available, the library will perform software rendering of the input. If this field is set to PJ_FALSE, software preview will always be used. Default: PJ_TRUE The documentation for this struct was generated from the following file:
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