/* GStreamer Intel MSDK plugin
 * Copyright (c) 2020, Intel Corporation
 * 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * 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 HOLDER 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 NEGLIGDECE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

 /**
 * SECTION: element-msdkav1dec
 * @title: msdkav1dec
 * @short_description: Intel MSDK AV1 decoder
 *
 * AV1 video decoder based on Intel MFX
 *
 * ## Example launch line
 * ```
 * gst-launch-1.0 filesrc location=sample.ivf ! ivfparse ! msdkav1dec ! glimagesink
 * ```
 *
 * Since: 1.20
 *
 */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include "gstmsdkav1dec.h"

GST_DEBUG_CATEGORY_EXTERN (gst_msdkav1dec_debug);
#define GST_CAT_DEFAULT gst_msdkav1dec_debug

#define GST_MSDKAV1DEC(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_FROM_INSTANCE (obj), GstMsdkAV1Dec))
#define GST_MSDKAV1DEC_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_FROM_CLASS (klass), GstMsdkAV1DecClass))
#define GST_IS_MSDKAV1DEC(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_FROM_INSTANCE (obj)))
#define GST_IS_MSDKAV1DEC_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_FROM_CLASS (klass)))

/* *INDENT-OFF* */
static const gchar *doc_src_caps_str =
    GST_VIDEO_CAPS_MAKE ("{ NV12, P010_10LE }") " ;"
    GST_VIDEO_CAPS_MAKE_WITH_FEATURES ("memory:DMABuf",
        "{ NV12, P010_10LE }") " ;"
    GST_VIDEO_CAPS_MAKE_WITH_FEATURES ("memory:VAMemory", "{ NV12 }") " ;"
    GST_VIDEO_CAPS_MAKE_WITH_FEATURES ("memory:D3D11Memory", "{ NV12 }");
/* *INDENT-ON* */

static const gchar *doc_sink_caps_str = "video/x-av1";

static GstElementClass *parent_class = NULL;

static gboolean
gst_msdkav1dec_configure (GstMsdkDec * decoder)
{
  decoder->param.mfx.CodecId = MFX_CODEC_AV1;
  /* Replaced with width and height rounded up to 16 */
  decoder->param.mfx.FrameInfo.Width =
      GST_ROUND_UP_16 (decoder->param.mfx.FrameInfo.CropW);
  decoder->param.mfx.FrameInfo.Height =
      GST_ROUND_UP_16 (decoder->param.mfx.FrameInfo.CropH);

  decoder->force_reset_on_res_change = FALSE;

  return TRUE;
}

static gboolean
gst_msdkav1dec_preinit_decoder (GstMsdkDec * decoder)
{
  decoder->param.mfx.FrameInfo.Width =
      GST_ROUND_UP_16 (decoder->param.mfx.FrameInfo.Width);
  decoder->param.mfx.FrameInfo.Height =
      GST_ROUND_UP_16 (decoder->param.mfx.FrameInfo.Height);

  decoder->param.mfx.FrameInfo.PicStruct =
      decoder->param.mfx.FrameInfo.PicStruct ? decoder->param.mfx.
      FrameInfo.PicStruct : MFX_PICSTRUCT_PROGRESSIVE;

  return TRUE;
}

static void
gst_msdkav1dec_class_init (gpointer klass, gpointer data)
{
  GstElementClass *element_class;
  GstMsdkDecClass *decoder_class;
  MsdkDecCData *cdata = data;

  parent_class = g_type_class_peek_parent (klass);

  element_class = GST_ELEMENT_CLASS (klass);
  decoder_class = GST_MSDKDEC_CLASS (klass);

  decoder_class->configure = GST_DEBUG_FUNCPTR (gst_msdkav1dec_configure);
  decoder_class->preinit_decoder =
      GST_DEBUG_FUNCPTR (gst_msdkav1dec_preinit_decoder);

  gst_element_class_set_static_metadata (element_class,
      "Intel MSDK AV1 decoder",
      "Codec/Decoder/Video/Hardware",
      "AV1 video decoder based on " MFX_API_SDK,
      "Haihao Xiang <haihao.xiang@intel.com>");

  gst_msdkcaps_pad_template_init (element_class,
      cdata->sink_caps, cdata->src_caps, doc_sink_caps_str, doc_src_caps_str);

  gst_caps_unref (cdata->sink_caps);
  gst_caps_unref (cdata->src_caps);
  g_free (cdata);
}

static void
gst_msdkav1dec_init (GTypeInstance * instance, gpointer g_class)
{
}

gboolean
gst_msdkav1dec_register (GstPlugin * plugin,
    GstMsdkContext * context, GstCaps * sink_caps,
    GstCaps * src_caps, guint rank)
{
  GType type;
  MsdkDecCData *cdata;
  gchar *type_name, *feature_name;
  gboolean ret = FALSE;

  GTypeInfo type_info = {
    .class_size = sizeof (GstMsdkAV1DecClass),
    .class_init = gst_msdkav1dec_class_init,
    .instance_size = sizeof (GstMsdkAV1Dec),
    .instance_init = gst_msdkav1dec_init
  };

  cdata = g_new (MsdkDecCData, 1);
  cdata->sink_caps = gst_caps_ref (sink_caps);
  cdata->src_caps = gst_caps_ref (src_caps);

  GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps,
      GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
  GST_MINI_OBJECT_FLAG_SET (cdata->src_caps,
      GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);

  type_info.class_data = cdata;

  type_name = g_strdup ("GstMsdkAV1Dec");
  feature_name = g_strdup ("msdkav1dec");

  type = g_type_register_static (GST_TYPE_MSDKDEC, type_name, &type_info, 0);
  if (type)
    ret = gst_element_register (plugin, feature_name, rank, type);

  g_free (type_name);
  g_free (feature_name);

  return ret;
}
