sources/gst-plugins/gst-nvdsaudiotemplate/common/nvdscustomlib_base.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef __NVDSCUSTOMLIB_BASE_HPP__
#define __NVDSCUSTOMLIB_BASE_HPP__
 
#include <gst/audio/audio.h>
#include <gst/base/gstbasetransform.h>
 
#include "nvdscustomlib_interface.hpp"
 
/* Buffer Pool Configuration Parameters */
struct BufferPoolConfig {
  gint cuda_mem_type;
  guint gpu_id;
  guint max_buffers;
  gint batch_size;
};
 
class DSCustomLibraryBase : public IDSCustomLibrary {
 public:
  explicit DSCustomLibraryBase(GstBaseTransform* btrans = nullptr);
 
  /* Set Init Parameters */
  virtual bool SetInitParams(DSCustom_CreateParams *params);
 
  virtual ~DSCustomLibraryBase();
 
  virtual bool HandleEvent(GstEvent *event) = 0;
 
  virtual char* QueryProperties () = 0;
 
  /* Set Custom Properties  of the library */
  virtual bool SetProperty(Property &prop) = 0;
  // TODO: Add getProperty as well
 
  /* Get GetCompatibleOutputCaps */
  virtual GstCaps *GetCompatibleCaps(GstPadDirection direction,
                                     GstCaps *in_caps, GstCaps *othercaps);
 
  /* Process Incoming Buffer */
  virtual BufferResult ProcessBuffer(GstBuffer *inbuf) = 0;
 
 public:
  /* Gstreamer dsexaple2 plugin's base class reference */
  GstBaseTransform *m_element;
 
  guint m_gpuId;
 
  /* Audio Information */
  GstAudioInfo m_inAudioInfo;
  GstAudioInfo m_outAudioInfo;
 
  /* Audio Format Information */
  GstAudioFormat m_inAudioFmt;
  GstAudioFormat m_outAudioFmt;
 
  /* Gst Caps Information */
  GstCaps *m_inCaps;
  GstCaps *m_outCaps;
};
 
#endif