dmabuf
#include <gst/allocators/gstdmabuf.h>
GstAllocator * gst_dmabuf_allocator_new (void);
void
GstMemory * gst_dmabuf_allocator_alloc (GstAllocator *allocator, gint fd, gsize size);
GstAllocator *allocator
gint fd
gsize size
gint gst_dmabuf_memory_get_fd (GstMemory *mem);
GstMemory *mem
gboolean gst_is_dmabuf_memory (GstMemory *mem);