/*
 * Copyright (C) 2017 Ericsson AB. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __GST_NVDEC_H__
#define __GST_NVDEC_H__

#ifdef HAVE_CUDA_GST_GL
#include <gst/gl/gl.h>
#include <gst/gl/gstglfuncs.h>
#endif

#include "nvcuvid.h"
#include <gst/video/video.h>
#include <gst/codecparsers/gsth264parser.h>
#include <gst/codecparsers/gsth265parser.h>
#include <gst/cuda/gstcuda.h>

G_BEGIN_DECLS

#define GST_TYPE_NVDEC          (gst_nvdec_get_type())
#define GST_NVDEC(obj)          (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_NVDEC, GstNvDec))
#define GST_NVDEC_CLASS(klass)  (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_NVDEC, GstNvDecClass))
#define GST_NVDEC_GET_CLASS(obj)(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_NVDEC,GstNvDecClass))
#define GST_IS_NVDEC(obj)       (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_NVDEC))
#define GST_IS_NVDEC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_NVDEC))

typedef struct _GstNvDec GstNvDec;
typedef struct _GstNvDecClass GstNvDecClass;

typedef enum
{
  GST_NVDEC_STATE_INIT = 0,
  GST_NVDEC_STATE_PARSE,
  GST_NVDEC_STATE_DECODE,
} GstNvDecState;

typedef enum
{
  GST_NVDEC_MEM_TYPE_SYSTEM = 0,
  GST_NVDEC_MEM_TYPE_GL,
  GST_NVDEC_MEM_TYPE_CUDA,
  /* FIXME: add support D3D11 memory */
} GstNvDecMemType;

struct _GstNvDec
{
  GstVideoDecoder parent;

#ifdef HAVE_CUDA_GST_GL
  GstGLDisplay *gl_display;
  GstGLContext *gl_context;
  GstGLContext *other_gl_context;
#endif

  guint num_decode_surface;
  gint max_display_delay;
  gboolean is_live;

  CUvideoparser parser;
  CUvideodecoder decoder;
  GstCudaContext *cuda_ctx;
  GstCudaStream *stream;

  GstVideoInfo out_info;
  GstClockTime min_latency;
  GstVideoCodecState *input_state;
  GstVideoCodecState *output_state;

  GstFlowReturn last_ret;
  GstNvDecState state;
  GstNvDecMemType mem_type;

  GstBuffer *codec_data;
  gboolean recv_complete_picture;

  GstH264NalParser *h264_parser;
  GstH265Parser *h265_parser;
  GstBuffer *vps_nals[GST_H265_MAX_VPS_COUNT];
  GstBuffer *sps_nals[GST_H264_MAX_SPS_COUNT];
  GstBuffer *pps_nals[GST_H264_MAX_PPS_COUNT];

  gboolean need_codec_data;
};

struct _GstNvDecClass
{
  GstVideoDecoderClass parent_class;

  cudaVideoCodec codec_type;
  guint cuda_device_id;
};

GType gst_nvdec_get_type (void);

void gst_nvdec_plugin_init (GstPlugin * plugin,
                            guint device_index,
                            cudaVideoCodec codec,
                            const gchar * codec_name,
                            GstCaps *sink_template,
                            GstCaps *src_template);

G_END_DECLS

#endif /* __GST_NVDEC_H__ */