/******************************************************************************

 *

 * Copyright (C) 2022 The Android Open Source Project

 *

 * 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.

 *

 *****************************************************************************

 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore

 */

/**

 *******************************************************************************

 * @file

 *  isvcd_vui.c

 *

 * @brief

 *  This file contains routines to parse VUI NAL's

 *

 * @author

 *  Kishore

 *

 * @remarks

 *  None

 *

 *******************************************************************************

 */

#include "ih264_typedefs.h"

#include "ih264_macros.h"

#include "ih264_platform_macros.h"

#include "ih264d_vui.h"

#include "ih264d_bitstrm.h"

#include "ih264d_parse_cavlc.h"

#include "isvcd_structs.h"

#include "ih264d_error_handler.h"

/*****************************************************************************/

/*                                                                           */

/*  Function Name : isvcd_parse_vui_ext_parametres                           */

/*                                                                           */

/*  Description   : This function parses VUI NALs.                           */

/*  Inputs        : ps_vu4          pointer to VUI params                    */

/*                  ps_bitstrm   Bitstream                                   */

/*  Globals       : None                                                     */

/*  Processing    : Parses VUI NAL's units and stores the info               */

/*  Outputs       : None                                                     */

/*  Returns       : None                                                     */

/*                                                                           */

/*  Issues        : None                                                     */

/*                                                                           */

/*  Revision History:                                                        */

/*                                                                           */

/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */

/*         06 05 2002   Kishore             Draft                            */

/*                                                                           */

/*****************************************************************************/

WORD32 isvcd_parse_vui_ext_parametres(svc_vui_ext_t *ps_svc_vui_ext, dec_bit_stream_t *ps_bitstrm)

{

    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;

    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;

    WORD32 ret;

    UWORD32 u4_i;

    ps_svc_vui_ext->u4_vui_ext_num_entries_minus1 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);

    if(ps_svc_vui_ext->u4_vui_ext_num_entries_minus1 > 1023)

    {

        return ERROR_INV_SPS_PPS_T;

    }

    for(u4_i = 0; u4_i <= ps_svc_vui_ext->u4_vui_ext_num_entries_minus1; u4_i++)

    {

        ps_svc_vui_ext->u1_vui_ext_dependency_id[u4_i] = ih264d_get_bits_h264(ps_bitstrm, 3);

        ps_svc_vui_ext->u1_vui_ext_quality_id[u4_i] = ih264d_get_bits_h264(ps_bitstrm, 4);

        ps_svc_vui_ext->u1_vui_ext_temporal_id[u4_i] = ih264d_get_bits_h264(ps_bitstrm, 3);

        ps_svc_vui_ext->u1_vui_ext_timing_info_present_flag[u4_i] = ih264d_get_bit_h264(ps_bitstrm);

        if(1 == ps_svc_vui_ext->u1_vui_ext_timing_info_present_flag[u4_i])

        {

            ps_svc_vui_ext->u4_vui_ext_num_units_in_tick[u4_i] =

                ih264d_get_bits_h264(ps_bitstrm, 32);

            ps_svc_vui_ext->u4_vui_ext_time_scale[u4_i] = ih264d_get_bits_h264(ps_bitstrm, 32);

            ps_svc_vui_ext->u1_vui_ext_fixed_frame_rate_flag[u4_i] =

                ih264d_get_bit_h264(ps_bitstrm);

        }

        ps_svc_vui_ext->u1_vui_ext_nal_hrd_params_present_flag[u4_i] =

            ih264d_get_bit_h264(ps_bitstrm);

        if(ps_svc_vui_ext->u1_vui_ext_nal_hrd_params_present_flag[u4_i])

        {

            ret = ih264d_parse_hrd_parametres(&ps_svc_vui_ext->s_nal_hrd[u4_i], ps_bitstrm);

            if(ret != OK) return ret;

        }

        ps_svc_vui_ext->u1_vui_ext_vcl_hrd_params_present_flag[u4_i] =

            ih264d_get_bit_h264(ps_bitstrm);

        if(ps_svc_vui_ext->u1_vui_ext_vcl_hrd_params_present_flag[u4_i])

        {

            ret = ih264d_parse_hrd_parametres(&ps_svc_vui_ext->s_vcl_hrd[u4_i], ps_bitstrm);

            if(ret != OK) return ret;

        }

        if(ps_svc_vui_ext->u1_vui_ext_nal_hrd_params_present_flag[u4_i] ||

           ps_svc_vui_ext->u1_vui_ext_vcl_hrd_params_present_flag[u4_i])

        {

            ps_svc_vui_ext->u1_vui_ext_low_delay_hrd_flag[u4_i] = ih264d_get_bit_h264(ps_bitstrm);

        }

        ps_svc_vui_ext->u1_vui_ext_pic_struct_present_flag[u4_i] = ih264d_get_bit_h264(ps_bitstrm);

    }

    return OK;

}