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cf5ef5635f
Introducing CUDA buffer pool with generic CUDA memory support. Likewise GL memory, any elements which are able to access CUDA device memory directly can map this CUDA memory without upload/download overhead via the "GST_MAP_CUDA" map flag. Also usual GstMemory map/unmap is also possible with internal staging memory. For staging, CUDA Host allocated memory is used (see CuMemAllocHost API). The memory is allowing system access but has lower overhead during GPU upload/download than normal system memory. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1633>
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/* GStreamer
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* Copyright (C) <2018-2019> Seungha Yang <seungha.yang@navercorp.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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#ifndef __GST_CUDA_BUFFER_POOL_H__
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#define __GST_CUDA_BUFFER_POOL_H__
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#include <gst/video/gstvideometa.h>
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#include <gst/video/gstvideopool.h>
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#include "gstcudamemory.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CUDA_BUFFER_POOL (gst_cuda_buffer_pool_get_type ())
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#define GST_CUDA_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),GST_TYPE_CUDA_BUFFER_POOL,GstCudaBufferPool))
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#define GST_CUDA_BUFFER_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CUDA_BUFFER_POOL,GstCudaBufferPoolClass))
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#define GST_CUDA_BUFFER_POOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_CUDA_BUFFER_POOL,GstCudaBufferPoolClass))
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#define GST_IS_CUDA_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),GST_TYPE_CUDA_BUFFER_POOL))
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#define GST_IS_CUDA_BUFFER_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CUDA_BUFFER_POOL))
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#define GST_CUDA_BUFFER_POOL_CAST(obj) ((GstCudaBufferPool*)(obj))
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typedef struct _GstCudaBufferPool GstCudaBufferPool;
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typedef struct _GstCudaBufferPoolClass GstCudaBufferPoolClass;
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typedef struct _GstCudaBufferPoolPrivate GstCudaBufferPoolPrivate;
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/*
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* GstCudaBufferPool:
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*/
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struct _GstCudaBufferPool
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{
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GstBufferPool parent;
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GstCudaBufferPoolPrivate *priv;
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};
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/*
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* GstCudaBufferPoolClass:
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*/
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struct _GstCudaBufferPoolClass
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{
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GstBufferPoolClass parent_class;
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};
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GType gst_cuda_buffer_pool_get_type (void);
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GstBufferPool * gst_cuda_buffer_pool_new (GstCudaContext * context);
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G_END_DECLS
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#endif /* __GST_CUDA_BUFFER_POOL_H__ */
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