VideoCanvas Struct Reference

Data Fields
uid_t	uid
uid_t	subviewUid
view_t	view
uint32_t	backgroundColor
media::base::RENDER_MODE_TYPE	renderMode
VIDEO_MIRROR_MODE_TYPE	mirrorMode
VIDEO_VIEW_SETUP_MODE	setupMode
VIDEO_SOURCE_TYPE	sourceType
int	mediaPlayerId
Rectangle	cropArea
bool	enableAlphaMask
media::base::VIDEO_MODULE_POSITION	position

Constructor & Destructor Documentation

VideoCanvas() [1/4]

VideoCanvas ( )

inline

VideoCanvas() [2/4]

VideoCanvas ( view_t  v, media::base::RENDER_MODE_TYPE  m, VIDEO_MIRROR_MODE_TYPE  mt  )

inline

VideoCanvas() [3/4]

VideoCanvas ( view_t  v, media::base::RENDER_MODE_TYPE  m, VIDEO_MIRROR_MODE_TYPE  mt, uid_t  u  )

inline

VideoCanvas() [4/4]

VideoCanvas ( view_t  v, media::base::RENDER_MODE_TYPE  m, VIDEO_MIRROR_MODE_TYPE  mt, uid_t  u, uid_t  subu  )

inline

Field Documentation

uid

uid_t uid

User ID that publishes the video source.

subviewUid

uid_t subviewUid

The ID of the user who publishes a specific sub-video stream within the mixed video stream.

view

view_t view

The video display window.

Note

In one VideoCanvas, you can only choose to set either view or surfaceTexture. If both are set, only the settings in view take effect.

backgroundColor

uint32_t backgroundColor

The background color of the video canvas in RGBA format. The default value is 0x00000000, which represents black.

renderMode

media::base::RENDER_MODE_TYPE renderMode

The rendering mode of the video. See RENDER_MODE_TYPE.

mirrorMode

VIDEO_MIRROR_MODE_TYPE mirrorMode

The mirror mode of the view. See VIDEO_MIRROR_MODE_TYPE.

Note

• For the mirror mode of the local video view: If you use a front camera, the SDK enables the mirror mode by default; if you use a rear camera, the SDK disables the mirror mode by default.
• For the remote user: The mirror mode is disabled by default.

setupMode

VIDEO_VIEW_SETUP_MODE setupMode

Setting mode of the view. See VIDEO_VIEW_SETUP_MODE.

sourceType

VIDEO_SOURCE_TYPE sourceType

The type of the video source. See VIDEO_SOURCE_TYPE.

mediaPlayerId

int mediaPlayerId

The ID of the media player. You can get the Device ID by calling getMediaPlayerId.

cropArea

Rectangle cropArea

(Optional) Display area of the video frame, see Rectangle. width and height represent the video pixel width and height of the area. The default value is null (width or height is 0), which means that the actual resolution of the video frame is displayed.

enableAlphaMask

bool enableAlphaMask

(Optional) Whether to enable alpha mask rendering:

• true: Enable alpha mask rendering.
• false: (Default) Disable alpha mask rendering. Alpha mask rendering can create images with transparent effects and extract portraits from videos. When used in combination with other methods, you can implement effects such as portrait-in-picture and watermarking.

  Note

• The receiver can render alpha channel information only when the sender enables alpha transmission.
• To enable alpha transmission, technical support.

position

media::base::VIDEO_MODULE_POSITION position

The observation position of the video frame in the video link. See VIDEO_MODULE_POSITION.