Commit 56ab7e0e authored by Hyunjun Ko's avatar Hyunjun Ko Committed by Nicolas Dufresne

dmabufallocator: adds gst_dmabuf_allocator_alloc_with_flags

If we can guarantee the lifetime of the fd is longer than
the memory, we can use DONT_CLOSE flag not to close when release.
But it's not provided in gstdmabuf yet while gstfdmemory does.

For example, in case of using VA-API or MSDK, we would need this api.
Otherwise we should call dup to duplicate the fd.

https://bugzilla.gnome.org/show_bug.cgi?id=794829
parent e7700f20
......@@ -7,6 +7,7 @@
GST_CAPS_FEATURE_MEMORY_DMABUF
gst_dmabuf_allocator_new
gst_dmabuf_allocator_alloc
gst_dmabuf_allocator_alloc_with_flags
gst_dmabuf_memory_get_fd
gst_is_dmabuf_memory
<SUBSECTION Standard>
......
......@@ -157,6 +157,32 @@ gst_dmabuf_allocator_alloc (GstAllocator * allocator, gint fd, gsize size)
return gst_fd_allocator_alloc (allocator, fd, size, GST_FD_MEMORY_FLAG_NONE);
}
/**
* gst_dmabuf_allocator_alloc_with_flags:
* @allocator: allocator to be used for this memory
* @fd: dmabuf file descriptor
* @size: memory size
* @flags: extra #GstFdMemoryFlags
*
* Return a %GstMemory that wraps a dmabuf file descriptor.
*
* Returns: (transfer full): a GstMemory based on @allocator.
*
* When the buffer will be released the allocator will close the @fd unless
* the %GST_FD_MEMORY_FLAG_DONT_CLOSE flag is specified.
* The memory is only mmapped on gst_buffer_mmap() request.
*
* Since: 1.16
*/
GstMemory *
gst_dmabuf_allocator_alloc_with_flags (GstAllocator * allocator, gint fd,
gsize size, GstFdMemoryFlags flags)
{
g_return_val_if_fail (GST_IS_DMABUF_ALLOCATOR (allocator), NULL);
return gst_fd_allocator_alloc (allocator, fd, size, flags);
}
/**
* gst_dmabuf_memory_get_fd:
* @mem: the memory to get the file descriptor
......
......@@ -104,6 +104,9 @@ GstAllocator * gst_dmabuf_allocator_new (void);
GST_ALLOCATORS_API
GstMemory * gst_dmabuf_allocator_alloc (GstAllocator * allocator, gint fd, gsize size);
GST_ALLOCATORS_API
GstMemory * gst_dmabuf_allocator_alloc_with_flags (GstAllocator * allocator, gint fd, gsize size, GstFdMemoryFlags flags);
GST_ALLOCATORS_API
gint gst_dmabuf_memory_get_fd (GstMemory * mem);
......
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