Return a gst.memory.Memory that wraps a dmabuf file descriptor.
allocator to be used for this memory
dmabuf file descriptor
memory size
a GstMemory based on allocator. When the buffer will be released dmabuf allocator will close the fd. The memory is only mmapped on gst.buffer.Buffer.map request.
Return a gst.memory.Memory that wraps a dmabuf file descriptor.