NVIDIA DeepStream SDK API Reference
9.1 Release
9.1/sources/gst-plugins/gst-nvdspreprocess/gstnvdspreprocess_allocator.h
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/*
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* SPDX-FileCopyrightText: Copyright (c) 2021-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __GSTNVDSPREPROCESSALLOCATOR_H__
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#define __GSTNVDSPREPROCESSALLOCATOR_H__
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#include <cuda_runtime_api.h>
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#include <gst/gst.h>
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#include <vector>
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#include "cudaEGL.h"
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#include "nvbufsurface.h"
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typedef
struct
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{
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NvBufSurface
*surf;
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std::vector<CUgraphicsResource> cuda_resources;
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std::vector<CUeglFrame> egl_frames;
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void
*dev_memory_ptr;
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std::vector<void *> frame_memory_ptrs;
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}
GstNvDsPreProcessMemory
;
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GstNvDsPreProcessMemory
*
gst_nvdspreprocess_buffer_get_memory
(
GstBuffer
* buffer);
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typedef
struct
{
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guint width;
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guint height;
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NvBufSurfaceColorFormat
color_format;
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guint batch_size;
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NvBufSurfaceMemType
memory_type;
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}
GstNvDsPreProcessVideoBufferAllocatorInfo
;
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GstAllocator *
gst_nvdspreprocess_allocator_new
(
GstNvDsPreProcessVideoBufferAllocatorInfo
*info,
size_t
raw_buf_size,
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guint gpu_id, gboolean debug_tensor);
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#endif
gst_nvdspreprocess_buffer_get_memory
GstNvDsPreProcessMemory * gst_nvdspreprocess_buffer_get_memory(GstBuffer *buffer)
Get GstNvDsPreProcessMemory structure associated with buffer allocated using GstNvDsPreProcessAllocat...
NvBufSurface
Holds information about batched buffers.
Definition:
sources/includes/nvbufsurface.h:597
GstNvDsPreProcessVideoBufferAllocatorInfo
structure containing video buffer allocator info
Definition:
sources/gst-plugins/gst-nvdspreprocess/gstnvdspreprocess_allocator.h:64
gst_nvdspreprocess_allocator_new
GstAllocator * gst_nvdspreprocess_allocator_new(GstNvDsPreProcessVideoBufferAllocatorInfo *info, size_t raw_buf_size, guint gpu_id, gboolean debug_tensor)
Create a new GstNvDsPreProcessAllocator with the given parameters.
NvBufSurfaceMemType
NvBufSurfaceMemType
Specifies memory types for NvBufSurface.
Definition:
sources/includes/nvbufsurface.h:350
GstNvDsPreProcessMemory
This file describes the custom memory allocator for the Gstreamer TensorRT plugin.
Definition:
sources/gst-plugins/gst-nvdspreprocess/gstnvdspreprocess_allocator.h:37
NvBufSurfaceColorFormat
NvBufSurfaceColorFormat
Defines color formats for NvBufSurface.
Definition:
sources/includes/nvbufsurface.h:105
GstBuffer
struct _GstBuffer GstBuffer
Definition:
sources/includes/ds3d/common/idatatype.h:24
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© 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
NVIDIA Confidential | Subject to Change | For test and development only.
Thu Jul 9 2026 11:48:19 | PR-09318-R32