|  | PortSIP VoIP SDK Manual for Windows
    16.2
    PortSIP features our newest, supported, quality-assured VoIP SDK used by Several hundred companies around the world for easy VoIP application develop and quality-assured code. | 
| Functions | |
| Int32 | PortSIP.PortSIPLib.enableAudioStreamCallback (Int32 callbackObject, Int32 sessionId, Boolean enable, AUDIOSTREAM_CALLBACK_MODE callbackMode) | 
| Enable/disable the audio stream callback.  More... | |
| Int32 | PortSIP.PortSIPLib.enableVideoStreamCallback (Int32 callbackObject, Int32 sessionId, VIDEOSTREAM_CALLBACK_MODE callbackMode) | 
| Enable/disable the video stream callback.  More... | |
| Int32 PortSIP.PortSIPLib.enableAudioStreamCallback | ( | Int32 | callbackObject, | 
| Int32 | sessionId, | ||
| Boolean | enable, | ||
| AUDIOSTREAM_CALLBACK_MODE | callbackMode | ||
| ) | 
Enable/disable the audio stream callback.
| callbackObject | The callback object that you passed in can be accessed once callback function triggered. | 
| sessionId | The session ID of call. | 
| enable | Set to true to enable audio stream callback, or false to stop the callback. | 
| callbackMode | The audio stream callback mode | 
| Mode | Description | 
|---|---|
| AUDIOSTREAM_LOCAL_MIX | Callback the audio stream from microphone for all channels. | 
| AUDIOSTREAM_LOCAL_PER_CHANNEL | Callback the audio stream from microphone for one channel based on the given sessionId. | 
| AUDIOSTREAM_REMOTE_MIX | Callback the received audio stream that mixed all included channels. | 
| AUDIOSTREAM_REMOTE_PER_CHANNEL | Callback the received audio stream for one channel based on the given sessionId. | 
| Int32 PortSIP.PortSIPLib.enableVideoStreamCallback | ( | Int32 | callbackObject, | 
| Int32 | sessionId, | ||
| VIDEOSTREAM_CALLBACK_MODE | callbackMode | ||
| ) | 
Enable/disable the video stream callback.
| callbackObject | The callback object that you passed in can be accessed once callback function triggered. | 
| sessionId | The session ID of call. | 
| callbackMode | The video stream callback mode. | 
| Mode | Description | 
|---|---|
| VIDEOSTREAM_NONE | Disable video stream callback. | 
| VIDEOSTREAM_LOCAL | Local video stream callback. | 
| VIDEOSTREAM_REMOTE | Remote video stream callback. | 
| VIDEOSTREAM_BOTH | Both local and remote video stream callback. |