sources/gst-plugins/gst-nvdsvisionencoder-c/preprocess.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef __PREPROCESS_H__
#define __PREPROCESS_H__
 
#include <cuda_runtime.h>
#include <glib.h>
#include "nvbufsurface.h"
#include "nvbufsurftransform.h"
#include "nvdsmeta.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
int preprocess_with_nvbufsurftransform(
    NvBufSurface *input_surface,
    guint batch_id,
    NvDsObjectMeta **obj_meta_array,
    guint num_objects,
    NvBufSurface *prealloc_output_surface,
    guint target_width,
    guint target_height,
    guint gpu_id,
    guint max_batch_size,
    NvBufSurfaceParams *prealloc_surf_list,
    NvBufSurfTransformRect *prealloc_src_rect,
    NvBufSurfTransformRect *prealloc_dst_rect);
 
int preprocess_batch_with_nvbufsurftransform(
    NvBufSurface *input_surface,
    const guint *batch_ids,
    NvDsObjectMeta **obj_meta_array,
    guint num_objects,
    NvBufSurface *prealloc_output_surface,
    guint target_width,
    guint target_height,
    guint gpu_id,
    guint max_batch_size,
    NvBufSurfaceParams *prealloc_surf_list,
    NvBufSurfTransformRect *prealloc_src_rect,
    NvBufSurfTransformRect *prealloc_dst_rect,
    gboolean output_for_gpu);
 
int rgb_surface_to_tensor(
    NvBufSurface *rgb_surface,
    float *output_tensor,
    guint num_images,
    guint width,
    guint height,
    gboolean use_siglip_normalization);
 
int rgb_surface_to_tensor_device(
    NvBufSurface *rgb_surface,
    float *d_output_tensor,
    guint num_images,
    guint width,
    guint height,
    gboolean use_siglip_normalization);
 
int rgba_surface_to_tensor(
    NvBufSurface *rgba_surface,
    float *output_tensor,
    guint num_images,
    guint width,
    guint height,
    gboolean use_siglip_normalization);
 
int rgba_surface_to_tensor_device(
    NvBufSurface *rgba_surface,
    float *d_output_tensor,
    guint num_images,
    guint width,
    guint height,
    gboolean use_siglip_normalization);
 
int preprocess_crops_rgba(
    const void* rgba_surface,
    int surface_width,
    int surface_height,
    int surface_pitch,
    const float* crop_boxes,
    int num_crops,
    float* output,
    int target_width,
    int target_height,
    cudaStream_t stream
);
 
int preprocess_crops_nv12(
    const void* nv12_surface,
    int surface_width,
    int surface_height,
    int surface_pitch,
    const float* crop_boxes,
    int num_crops,
    float* output,
    int target_width,
    int target_height,
    cudaStream_t stream
);
 
void* get_nvbufsurface_device_ptr(NvBufSurface* surf, unsigned int buf_idx);
 
void unmap_nvbufsurface(NvBufSurface* surf, unsigned int buf_idx);
 
#ifdef __cplusplus
}
#endif
 
#endif // __PREPROCESS_H__