deepstream_preprocess.c

/*
 * SPDX-FileCopyrightText: Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */

#include "deepstream_common.h"
#include "deepstream_preprocess.h"


// Create bin, add queue and the element, link all elements and ghost pads,
// Set the element properties from the parsed config
gboolean
create_preprocess_bin (NvDsPreProcessConfig * config, NvDsPreProcessBin * bin)
{
  gboolean ret = FALSE;

  bin->bin = gst_bin_new ("preprocess_bin");
  if (!bin->bin) {
    NVGSTDS_ERR_MSG_V ("Failed to create 'preprocess_bin'");
    goto done;
  }

  bin->queue = gst_element_factory_make (NVDS_ELEM_QUEUE, "preprocess_queue");
  if (!bin->queue) {
    NVGSTDS_ERR_MSG_V ("Failed to create 'preprocess_queue'");
    goto done;
  }

  bin->preprocess =
      gst_element_factory_make (NVDS_ELEM_PREPROCESS, "preprocess0");
  if (!bin->preprocess) {
    NVGSTDS_ERR_MSG_V ("Failed to create 'preprocess0'");
    goto done;
  }

  gst_bin_add_many (GST_BIN (bin->bin), bin->queue, bin->preprocess, NULL);

  NVGSTDS_LINK_ELEMENT (bin->queue, bin->preprocess);

  NVGSTDS_BIN_ADD_GHOST_PAD (bin->bin, bin->queue, "sink");

  NVGSTDS_BIN_ADD_GHOST_PAD (bin->bin, bin->preprocess, "src");

  g_object_set (G_OBJECT (bin->preprocess),
      "config-file", config->config_file_path, NULL);

  ret = TRUE;

done:
  if (!ret) {
    NVGSTDS_ERR_MSG_V ("%s failed", __func__);
  }

  return ret;
}