VideoFrame.mapId

bool mapId(out  gstvideo.video_frame.VideoFrame frame,  gstvideo.video_info.VideoInfo info,  gst.buffer.Buffer buffer,  int  id,  gst.types.MapFlags flags)

static nothrow

Use info and buffer to fill in the values of frame with the video frame information of frame id.

When id is -1, the default frame is mapped. When id != -1, this function will return false when there is no GstVideoMeta with that id.

All video planes of buffer will be mapped and the pointers will be set in frame->data.

Parameters

`frame`	pointer to #GstVideoFrame
`info`	a #GstVideoInfo
`buffer`	the buffer to map
`id`	the frame id to map
`flags`	#GstMapFlags

Returns

true on success.