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vaapivideomemory: add explanation about the call 'dup (dmabuf_fd)'

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In short GstFdMemory is configured to call close when using
GstDmabufMemory.

https://bugzilla.gnome.org/show_bug.cgi?id=755072
This commit is contained in:
Julien Isorce 2016-10-19 15:39:54 +01:00 committed by Víctor Manuel Jáquez Leal
parent fb95a79818
commit 84f7a3ec51
1 changed files with 3 additions and 0 deletions
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3
gst/vaapi/gstvaapivideomemory.c
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@ -825,6 +825,9 @@ gst_vaapi_dmabuf_memory_new (GstAllocator * allocator, GstVaapiVideoMeta * meta)
gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
gst_vaapi_surface_proxy_unref (proxy);
/* Need dup because GstDmabufMemory creates the GstFdMemory with flag
* GST_FD_MEMORY_FLAG_NONE. So when being freed it calls close on the fd
* because GST_FD_MEMORY_FLAG_DONT_CLOSE is not set. */
dmabuf_fd = gst_vaapi_buffer_proxy_get_handle (dmabuf_proxy);
if (dmabuf_fd < 0 || (dmabuf_fd = dup (dmabuf_fd)) < 0)
goto error_create_dmabuf_handle;