no such metadata on buffer.
bufferGetVideoRegionOfInterestMetaId
fn
gstvideo.video_region_of_interest_meta.VideoRegionOfInterestMeta bufferGetVideoRegionOfInterestMetaId(gst.buffer.Buffer buffer, int id)Find the #GstVideoRegionOfInterestMeta on buffer with the given id.
Buffers can contain multiple #GstVideoRegionOfInterestMeta metadata items if multiple regions of interests are marked on a frame.
Parameters
buffer | a #GstBuffer |
id | a metadata id |
Returns
the #GstVideoRegionOfInterestMeta with id or null when there is