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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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7b6023d9cf
Adding cudaipc{src,sink} element for CUDA IPC support.
Implementation note:
* For the communication between end points, Win32 named-pipe
and unix domain socket will be used on Windows and Linux respectively.
* cudaipcsink behaves as a server, and all GPU resources will be owned by
the server process and exported for other processes, then cudaipcsrc
(client) will import each exported handle.
* User can select IPC mode via "ipc-mode" property of cudaipcsink.
There are two IPC mode, one is "legacy" which uses legacy CUDA IPC
method and the other is "mmap" which uses CUDA virtual memory API
with OS's resource handle sharing method such as DuplicateHandle()
on Windows. The "mmap" mode might be better than "legacy" in terms
of stability since it relies on OS's resource management but
it would consume more GPU memory than "legacy" mode.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4510>
37 lines
1.5 KiB
C
37 lines
1.5 KiB
C
/* GStreamer
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* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "gstcudaipcclient.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CUDA_IPC_CLIENT_UNIX (gst_cuda_ipc_client_unix_get_type())
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G_DECLARE_FINAL_TYPE (GstCudaIpcClientUnix, gst_cuda_ipc_client_unix,
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GST, CUDA_IPC_CLIENT_UNIX, GstCudaIpcClient);
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GstCudaIpcClient * gst_cuda_ipc_client_new (const gchar * address,
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GstCudaContext * context,
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GstCudaStream * stream,
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GstCudaIpcIOMode io_mode,
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guint timeout,
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guint buffer_size);
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G_END_DECLS
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