/******************************************************************************
 *
 * Copyright (C) 2015 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 Name         : ih264d_sei.c                                         */
/*                                                                           */
/*  Description       : This file contains routines to parse SEI NAL's       */
/*                                                                           */
/*  List of Functions : <List the functions defined in this file>            */
/*                                                                           */
/*  Issues / Problems : None                                                 */
/*                                                                           */
/*  Revision History  :                                                      */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         25 05 2005   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/

#include <string.h>

#include "ih264_typedefs.h"
#include "ih264_macros.h"
#include "ih264_platform_macros.h"
#include "ih264d_bitstrm.h"
#include "ih264d_structs.h"
#include "ih264d_error_handler.h"
#include "ih264d_vui.h"
#include "ih264d_parse_cavlc.h"
#include "ih264d_defs.h"

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_buffering_period                            */
/*                                                                           */
/*  Description   : This function parses SEI message buffering_period        */
/*  Inputs        : ps_buf_prd pointer to struct buf_period_t                */
/*                  ps_bitstrm    Bitstream                                  */
/*  Globals       : None                                                     */
/*  Processing    : Parses SEI payload buffering period.                     */
/*  Outputs       : None                                                     */
/*  Return        : 0 for successfull parsing, else error message            */
/*                                                                           */
/*  Issues        : Not implemented fully                                    */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         06 05 2002   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/

WORD32 ih264d_parse_buffering_period(buf_period_t *ps_buf_prd,
                                     dec_bit_stream_t *ps_bitstrm,
                                     dec_struct_t *ps_dec)
{
    UWORD8 u1_seq_parameter_set_id;
    dec_seq_params_t *ps_seq;
    UWORD8 u1_nal_hrd_present, u1_vcl_hrd_present;
    UWORD32 i;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UNUSED(ps_buf_prd);
    u1_seq_parameter_set_id = ih264d_uev(pu4_bitstrm_ofst,
                                         pu4_bitstrm_buf);
    if(u1_seq_parameter_set_id >= MAX_NUM_SEQ_PARAMS)
        return ERROR_INVALID_SEQ_PARAM;
    ps_seq = &ps_dec->ps_sps[u1_seq_parameter_set_id];
    if(TRUE != ps_seq->u1_is_valid)
        return ERROR_INVALID_SEQ_PARAM;

    ps_dec->ps_sei->u1_seq_param_set_id = u1_seq_parameter_set_id;
    ps_dec->ps_cur_sps = ps_seq;
    if(FALSE == ps_seq->u1_is_valid)
        return ERROR_INVALID_SEQ_PARAM;
    if(1 == ps_seq->u1_vui_parameters_present_flag)
    {
        u1_nal_hrd_present = ps_seq->s_vui.u1_nal_hrd_params_present;
        if(u1_nal_hrd_present)
        {
            for(i = 0; i < ps_seq->s_vui.s_nal_hrd.u4_cpb_cnt; i++)
            {
                ih264d_get_bits_h264(
                                ps_bitstrm,
                                ps_seq->s_vui.s_nal_hrd.u1_initial_cpb_removal_delay);
                ih264d_get_bits_h264(
                                ps_bitstrm,
                                ps_seq->s_vui.s_nal_hrd.u1_initial_cpb_removal_delay);
            }
        }

        u1_vcl_hrd_present = ps_seq->s_vui.u1_vcl_hrd_params_present;
        if(u1_vcl_hrd_present)
        {
            for(i = 0; i < ps_seq->s_vui.s_vcl_hrd.u4_cpb_cnt; i++)
            {
                ih264d_get_bits_h264(
                                ps_bitstrm,
                                ps_seq->s_vui.s_vcl_hrd.u1_initial_cpb_removal_delay);
                ih264d_get_bits_h264(
                                ps_bitstrm,
                                ps_seq->s_vui.s_vcl_hrd.u1_initial_cpb_removal_delay);
            }
        }
    }
    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_pic_timing                                  */
/*                                                                           */
/*  Description   : This function parses SEI message pic_timing              */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    : Parses SEI payload picture timing                        */
/*  Outputs       : None                                                     */
/*  Return        : 0                                                        */
/*                                                                           */
/*  Issues        : Not implemented fully                                    */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         06 05 2002   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_pic_timing(dec_bit_stream_t *ps_bitstrm,
                               dec_struct_t *ps_dec,
                               UWORD32 ui4_payload_size)
{
    sei *ps_sei;
    vui_t *ps_vu4;
    UWORD8 u1_cpb_dpb_present;
    UWORD8 u1_pic_struct_present_flag;
    UWORD32 u4_start_offset, u4_bits_consumed;
    UWORD8 u1_cpb_removal_delay_length, u1_dpb_output_delay_length;

    ps_sei = (sei *)ps_dec->ps_sei;
    ps_vu4 = &ps_dec->ps_cur_sps->s_vui;

    u1_cpb_dpb_present = ps_vu4->u1_vcl_hrd_params_present
                    + ps_vu4->u1_nal_hrd_params_present;

    if(ps_vu4->u1_vcl_hrd_params_present)
    {
        u1_cpb_removal_delay_length =
                        ps_vu4->s_vcl_hrd.u1_cpb_removal_delay_length;
        u1_dpb_output_delay_length =
                        ps_vu4->s_vcl_hrd.u1_dpb_output_delay_length;
    }
    else if(ps_vu4->u1_nal_hrd_params_present)
    {
        u1_cpb_removal_delay_length =
                        ps_vu4->s_nal_hrd.u1_cpb_removal_delay_length;
        u1_dpb_output_delay_length =
                        ps_vu4->s_nal_hrd.u1_dpb_output_delay_length;
    }
    else
    {
        u1_cpb_removal_delay_length = 24;
        u1_dpb_output_delay_length = 24;

    }

    u4_start_offset = ps_bitstrm->u4_ofst;
    if(u1_cpb_dpb_present)
    {
        ih264d_get_bits_h264(ps_bitstrm, u1_cpb_removal_delay_length);
        ih264d_get_bits_h264(ps_bitstrm, u1_dpb_output_delay_length);
    }

    u1_pic_struct_present_flag = ps_vu4->u1_pic_struct_present_flag;
    if(u1_pic_struct_present_flag)
    {
        ps_sei->u1_pic_struct = ih264d_get_bits_h264(ps_bitstrm, 4);
        ps_dec->u1_pic_struct_copy = ps_sei->u1_pic_struct;
        ps_sei->u1_is_valid = 1;
    }
    u4_bits_consumed = ps_bitstrm->u4_ofst - u4_start_offset;

    if((ui4_payload_size << 3) < u4_bits_consumed)
        return ERROR_CORRUPTED_SLICE;

    ih264d_flush_bits_h264(ps_bitstrm,
                           (ui4_payload_size << 3) - u4_bits_consumed);

    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_recovery_point                              */
/*                                                                           */
/*  Description   : This function parses SEI message recovery point          */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    : Parses SEI payload picture timing                        */
/*  Outputs       : None                                                     */
/*  Return        : 0                                                        */
/*                                                                           */
/*  Issues        : Not implemented fully                                    */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         06 05 2002   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_recovery_point(dec_bit_stream_t *ps_bitstrm,
                                   dec_struct_t *ps_dec,
                                   UWORD32 ui4_payload_size)
{
    sei *ps_sei = ps_dec->ps_sei;
    dec_err_status_t *ps_err = ps_dec->ps_dec_err_status;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UNUSED(ui4_payload_size);
    ps_sei->u2_recovery_frame_cnt = ih264d_uev(pu4_bitstrm_ofst,
                                               pu4_bitstrm_buf);
    ps_err->u4_frm_sei_sync = ps_err->u4_cur_frm
                    + ps_sei->u2_recovery_frame_cnt;
    ps_sei->u1_exact_match_flag = ih264d_get_bit_h264(ps_bitstrm);
    ps_sei->u1_broken_link_flag = ih264d_get_bit_h264(ps_bitstrm);
    ps_sei->u1_changing_slice_grp_idc = ih264d_get_bits_h264(ps_bitstrm, 2);

    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_mdcv                                        */
/*                                                                           */
/*  Description   : This function parses SEI message mdcv                    */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    :                                                          */
/*  Outputs       : None                                                     */
/*  Return        : 0 for successfull parsing, else -1                       */
/*                                                                           */
/*  Issues        :                                                          */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                         Draft                             */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_mdcv(dec_bit_stream_t *ps_bitstrm,
                         dec_struct_t *ps_dec,
                         UWORD32 ui4_payload_size)
{
    sei *ps_sei = ps_dec->ps_sei_parse;
    dec_err_status_t *ps_err = ps_dec->ps_dec_err_status;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UWORD32 u4_count;
    UNUSED(ui4_payload_size);

    if((ps_dec == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei->u1_sei_mdcv_params_present_flag = 1;

    /* display primaries x */
    for(u4_count = 0; u4_count < NUM_SEI_MDCV_PRIMARIES; u4_count++)
    {
        ps_sei->s_sei_mdcv_params.au2_display_primaries_x[u4_count] =
                                    (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);

        if((ps_sei->s_sei_mdcv_params.au2_display_primaries_x[u4_count] >
                                                DISPLAY_PRIMARIES_X_UPPER_LIMIT) ||
           (ps_sei->s_sei_mdcv_params.au2_display_primaries_x[u4_count] <
                                                DISPLAY_PRIMARIES_X_LOWER_LIMIT) ||
           ((ps_sei->s_sei_mdcv_params.au2_display_primaries_x[u4_count] %
                                               DISPLAY_PRIMARIES_X_DIVISION_FACTOR) != 0))
        {
            ps_sei->u1_sei_mdcv_params_present_flag = 0;
            return ERROR_INV_SEI_MDCV_PARAMS;
        }

        ps_sei->s_sei_mdcv_params.au2_display_primaries_y[u4_count] =
                                    (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);

        if((ps_sei->s_sei_mdcv_params.au2_display_primaries_y[u4_count] >
                                                DISPLAY_PRIMARIES_Y_UPPER_LIMIT) ||
           (ps_sei->s_sei_mdcv_params.au2_display_primaries_y[u4_count] <
                                               DISPLAY_PRIMARIES_Y_LOWER_LIMIT) ||
           ((ps_sei->s_sei_mdcv_params.au2_display_primaries_y[u4_count] %
                                              DISPLAY_PRIMARIES_Y_DIVISION_FACTOR) != 0))
        {
            ps_sei->u1_sei_mdcv_params_present_flag = 0;
            return ERROR_INV_SEI_MDCV_PARAMS;
        }
    }

    /* white point x */
    ps_sei->s_sei_mdcv_params.u2_white_point_x = (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);

    if((ps_sei->s_sei_mdcv_params.u2_white_point_x > WHITE_POINT_X_UPPER_LIMIT) ||
       (ps_sei->s_sei_mdcv_params.u2_white_point_x < WHITE_POINT_X_LOWER_LIMIT) ||
       ((ps_sei->s_sei_mdcv_params.u2_white_point_x % WHITE_POINT_X_DIVISION_FACTOR) != 0))
    {
        ps_sei->u1_sei_mdcv_params_present_flag = 0;
        return ERROR_INV_SEI_MDCV_PARAMS;
    }
    /* white point y */
    ps_sei->s_sei_mdcv_params.u2_white_point_y = (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);

    if((ps_sei->s_sei_mdcv_params.u2_white_point_y > WHITE_POINT_Y_UPPER_LIMIT) ||
       (ps_sei->s_sei_mdcv_params.u2_white_point_y < WHITE_POINT_Y_LOWER_LIMIT) ||
       ((ps_sei->s_sei_mdcv_params.u2_white_point_y % WHITE_POINT_Y_DIVISION_FACTOR) != 0))
    {
        ps_sei->u1_sei_mdcv_params_present_flag = 0;
        return ERROR_INV_SEI_MDCV_PARAMS;
    }
    /* max display mastering luminance */
    ps_sei->s_sei_mdcv_params.u4_max_display_mastering_luminance =
                                    (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);

    if((ps_sei->s_sei_mdcv_params.u4_max_display_mastering_luminance >
                                            MAX_DISPLAY_MASTERING_LUMINANCE_UPPER_LIMIT) ||
       (ps_sei->s_sei_mdcv_params.u4_max_display_mastering_luminance <
                                            MAX_DISPLAY_MASTERING_LUMINANCE_LOWER_LIMIT) ||
       ((ps_sei->s_sei_mdcv_params.u4_max_display_mastering_luminance %
                                        MAX_DISPLAY_MASTERING_LUMINANCE_DIVISION_FACTOR) != 0))
    {
        ps_sei->u1_sei_mdcv_params_present_flag = 0;
        return ERROR_INV_SEI_MDCV_PARAMS;
    }
    /* min display mastering luminance */
    ps_sei->s_sei_mdcv_params.u4_min_display_mastering_luminance =
                                    (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);

    if((ps_sei->s_sei_mdcv_params.u4_min_display_mastering_luminance >
                                            MIN_DISPLAY_MASTERING_LUMINANCE_UPPER_LIMIT) ||
        (ps_sei->s_sei_mdcv_params.u4_min_display_mastering_luminance <
                                            MIN_DISPLAY_MASTERING_LUMINANCE_LOWER_LIMIT))
    {
        ps_sei->u1_sei_mdcv_params_present_flag = 0;
        return ERROR_INV_SEI_MDCV_PARAMS;
    }
    if(ps_sei->s_sei_mdcv_params.u4_max_display_mastering_luminance <=
            ps_sei->s_sei_mdcv_params.u4_min_display_mastering_luminance)
    {
        ps_sei->u1_sei_mdcv_params_present_flag = 0;
        return ERROR_INV_SEI_MDCV_PARAMS;
    }
    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_cll                                         */
/*                                                                           */
/*  Description   : This function parses SEI message cll                     */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    :                                                          */
/*  Outputs       : None                                                     */
/*  Return        : 0 for successfull parsing, else -1                       */
/*                                                                           */
/*  Issues        :                                                          */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                         Draft                             */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_cll(dec_bit_stream_t *ps_bitstrm,
                        dec_struct_t *ps_dec,
                        UWORD32 ui4_payload_size)
{
    sei *ps_sei = ps_dec->ps_sei_parse;
    dec_err_status_t *ps_err = ps_dec->ps_dec_err_status;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UNUSED(ui4_payload_size);

    if((ps_dec == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei->u1_sei_cll_params_present_flag = 1;

    ps_sei->s_sei_cll_params.u2_max_content_light_level =
                        (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);
    ps_sei->s_sei_cll_params.u2_max_pic_average_light_level =
                        (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);
    /*No any sanity checks done for CLL params*/

    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_ave                                         */
/*                                                                           */
/*  Description   : This function parses SEI message ave                     */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    :                                                          */
/*  Outputs       : None                                                     */
/*  Return        : 0 for successfull parsing, else -1                       */
/*                                                                           */
/*  Issues        :                                                          */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                         Draft                             */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_ave(dec_bit_stream_t *ps_bitstrm,
                        dec_struct_t *ps_dec,
                        UWORD32 ui4_payload_size)
{
    sei *ps_sei = ps_dec->ps_sei_parse;
    dec_err_status_t *ps_err = ps_dec->ps_dec_err_status;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UNUSED(ui4_payload_size);

    if((ps_dec == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei->u1_sei_ave_params_present_flag = 1;

    ps_sei->s_sei_ave_params.u4_ambient_illuminance = (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
    if(0 == ps_sei->s_sei_ave_params.u4_ambient_illuminance)
    {
        ps_sei->u1_sei_ave_params_present_flag = 0;
        return ERROR_INV_SEI_AVE_PARAMS;
    }

    ps_sei->s_sei_ave_params.u2_ambient_light_x = (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);
    if(ps_sei->s_sei_ave_params.u2_ambient_light_x > AMBIENT_LIGHT_X_UPPER_LIMIT)
    {
        ps_sei->u1_sei_ave_params_present_flag = 0;
        return ERROR_INV_SEI_AVE_PARAMS;
    }

    ps_sei->s_sei_ave_params.u2_ambient_light_y = (UWORD16)ih264d_get_bits_h264(ps_bitstrm, 16);
    if(ps_sei->s_sei_ave_params.u2_ambient_light_y > AMBIENT_LIGHT_Y_UPPER_LIMIT)
    {
        ps_sei->u1_sei_ave_params_present_flag = 0;
        return ERROR_INV_SEI_AVE_PARAMS;
    }
    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_ccv                                         */
/*                                                                           */
/*  Description   : This function parses SEI message ccv                     */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ps_dec          Poniter decoder context                  */
/*                  ui4_payload_size pay load i4_size                        */
/*  Globals       : None                                                     */
/*  Processing    :                                                          */
/*  Outputs       : None                                                     */
/*  Return        : 0 for successfull parsing, else -1                       */
/*                                                                           */
/*  Issues        :                                                          */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                         Draft                                             */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_parse_ccv(dec_bit_stream_t *ps_bitstrm,
                        dec_struct_t *ps_dec,
                        UWORD32 ui4_payload_size)
{
    sei *ps_sei = ps_dec->ps_sei_parse;
    dec_err_status_t *ps_err = ps_dec->ps_dec_err_status;
    UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
    UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
    UWORD32 u4_count;
    UNUSED(ui4_payload_size);

    if((ps_dec == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei->u1_sei_ccv_params_present_flag = 0;

    ps_sei->s_sei_ccv_params.u1_ccv_cancel_flag = (UWORD8)ih264d_get_bit_h264(ps_bitstrm);

    if(ps_sei->s_sei_ccv_params.u1_ccv_cancel_flag > 1)
    {
        return ERROR_INV_SEI_CCV_PARAMS;
    }
    if(0 == ps_sei->s_sei_ccv_params.u1_ccv_cancel_flag)
    {
        ps_sei->s_sei_ccv_params.u1_ccv_persistence_flag =
                                                (UWORD8)ih264d_get_bit_h264(ps_bitstrm);
        if(ps_sei->s_sei_ccv_params.u1_ccv_persistence_flag > 1)
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }
        ps_sei->s_sei_ccv_params.u1_ccv_primaries_present_flag =
                                                (UWORD8)ih264d_get_bit_h264(ps_bitstrm);
        if(ps_sei->s_sei_ccv_params.u1_ccv_primaries_present_flag > 1)
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }
        ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag =
                                                (UWORD8)ih264d_get_bit_h264(ps_bitstrm);
        if(ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag > 1)
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }
        ps_sei->s_sei_ccv_params.u1_ccv_max_luminance_value_present_flag =
                                                (UWORD8)ih264d_get_bit_h264(ps_bitstrm);
        if(ps_sei->s_sei_ccv_params.u1_ccv_max_luminance_value_present_flag > 1)
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }
        ps_sei->s_sei_ccv_params.u1_ccv_avg_luminance_value_present_flag =
                                                (UWORD8)ih264d_get_bit_h264(ps_bitstrm);
        if(ps_sei->s_sei_ccv_params.u1_ccv_avg_luminance_value_present_flag > 1)
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }

        if((ps_sei->s_sei_ccv_params.u1_ccv_primaries_present_flag == 0) &&
           (ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag == 0) &&
           (ps_sei->s_sei_ccv_params.u1_ccv_max_luminance_value_present_flag == 0) &&
           (ps_sei->s_sei_ccv_params.u1_ccv_avg_luminance_value_present_flag == 0))
        {
            return ERROR_INV_SEI_CCV_PARAMS;
	 }

        ps_sei->s_sei_ccv_params.u1_ccv_reserved_zero_2bits =
                                                (UWORD8)ih264d_get_bits_h264(ps_bitstrm, 2);
        if((ps_sei->s_sei_ccv_params.u1_ccv_reserved_zero_2bits != 0))
        {
            return ERROR_INV_SEI_CCV_PARAMS;
        }

        /* ccv primaries */
        if(1 == ps_sei->s_sei_ccv_params.u1_ccv_primaries_present_flag)
        {
            for(u4_count = 0; u4_count < NUM_SEI_CCV_PRIMARIES; u4_count++)
            {
                ps_sei->s_sei_ccv_params.ai4_ccv_primaries_x[u4_count] =
                                                (WORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
                if((ps_sei->s_sei_ccv_params.ai4_ccv_primaries_x[u4_count] >
                                                        CCV_PRIMARIES_X_UPPER_LIMIT) ||
                   (ps_sei->s_sei_ccv_params.ai4_ccv_primaries_x[u4_count] <
                                                        CCV_PRIMARIES_X_LOWER_LIMIT))
                {
                    return ERROR_INV_SEI_CCV_PARAMS;
                }

                ps_sei->s_sei_ccv_params.ai4_ccv_primaries_y[u4_count] =
                                                (WORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
                if((ps_sei->s_sei_ccv_params.ai4_ccv_primaries_y[u4_count] >
                                                        CCV_PRIMARIES_Y_UPPER_LIMIT) ||
                   (ps_sei->s_sei_ccv_params.ai4_ccv_primaries_y[u4_count] <
                                                        CCV_PRIMARIES_Y_LOWER_LIMIT))
                {
                    return ERROR_INV_SEI_CCV_PARAMS;
                }
            }
        }

        if(1 == ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag)
        {
            ps_sei->s_sei_ccv_params.u4_ccv_min_luminance_value =
                                                (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
        }

        if(1 == ps_sei->s_sei_ccv_params.u1_ccv_max_luminance_value_present_flag)
        {
            ps_sei->s_sei_ccv_params.u4_ccv_max_luminance_value =
                                                (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
            if((1 == ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag) &&
                (ps_sei->s_sei_ccv_params.u4_ccv_max_luminance_value <
                                                ps_sei->s_sei_ccv_params.u4_ccv_min_luminance_value))
            {
                return ERROR_INV_SEI_CCV_PARAMS;
            }
        }
        if(1 == ps_sei->s_sei_ccv_params.u1_ccv_avg_luminance_value_present_flag)
        {
            ps_sei->s_sei_ccv_params.u4_ccv_avg_luminance_value =
                                                (UWORD32)ih264d_get_bits_h264(ps_bitstrm, 32);
            if((1 == ps_sei->s_sei_ccv_params.u1_ccv_min_luminance_value_present_flag) &&
                (ps_sei->s_sei_ccv_params.u4_ccv_avg_luminance_value <
                                                ps_sei->s_sei_ccv_params.u4_ccv_min_luminance_value))
            {
                return ERROR_INV_SEI_CCV_PARAMS;
            }
            if((1 == ps_sei->s_sei_ccv_params.u1_ccv_max_luminance_value_present_flag) &&
                (ps_sei->s_sei_ccv_params.u4_ccv_max_luminance_value <
                                                ps_sei->s_sei_ccv_params.u4_ccv_avg_luminance_value))
            {
                return ERROR_INV_SEI_CCV_PARAMS;
            }
        }
    }
    ps_sei->u1_sei_ccv_params_present_flag = 1;
    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_sei_payload                                 */
/*                                                                           */
/*  Description   : This function parses SEI pay loads. Currently it's       */
/*                  implemented partially.                                   */
/*  Inputs        : ps_bitstrm    Bitstream                                  */
/*                  ui4_payload_type  SEI payload type                       */
/*                  ui4_payload_size  SEI payload i4_size                    */
/*  Globals       : None                                                     */
/*  Processing    : Parses SEI payloads units and stores the info            */
/*  Outputs       : None                                                     */
/*  Return        : status for successful parsing, else -1                   */
/*                                                                           */
/*  Issues        : Not implemented fully                                    */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         06 05 2002   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/

WORD32 ih264d_parse_sei_payload(dec_bit_stream_t *ps_bitstrm,
                                UWORD32 ui4_payload_type,
                                UWORD32 ui4_payload_size,
                                dec_struct_t *ps_dec)
{
    sei *ps_sei;
    WORD32 i4_status = 0;
    ps_sei = (sei *)ps_dec->ps_sei_parse;

    if(ui4_payload_size == 0)
        return -1;
    if(NULL == ps_bitstrm)
    {
        return NOT_OK;
    }

    switch(ui4_payload_type)
    {
        case SEI_BUF_PERIOD:

            i4_status = ih264d_parse_buffering_period(&ps_sei->s_buf_period,
                                                      ps_bitstrm, ps_dec);
            break;
        case SEI_PIC_TIMING:
            if(NULL == ps_dec->ps_cur_sps)
                i4_status = ih264d_flush_bits_h264(ps_bitstrm, (ui4_payload_size << 3));
            else
                i4_status = ih264d_parse_pic_timing(ps_bitstrm, ps_dec,
                                        ui4_payload_size);
            break;
        case SEI_RECOVERY_PT:
            i4_status = ih264d_parse_recovery_point(ps_bitstrm, ps_dec,
                                        ui4_payload_size);
            break;
        case SEI_MASTERING_DISP_COL_VOL:

            i4_status = ih264d_parse_mdcv(ps_bitstrm, ps_dec,
                                          ui4_payload_size);
            break;
        case SEI_CONTENT_LIGHT_LEVEL_DATA:

            i4_status = ih264d_parse_cll(ps_bitstrm, ps_dec,
                                         ui4_payload_size);
            break;
        case SEI_AMBIENT_VIEWING_ENVIRONMENT:

            i4_status = ih264d_parse_ave(ps_bitstrm, ps_dec,
                                         ui4_payload_size);
            break;
        case SEI_CONTENT_COLOR_VOLUME:

            i4_status = ih264d_parse_ccv(ps_bitstrm, ps_dec,
                                         ui4_payload_size);
            break;
        default:
            i4_status = ih264d_flush_bits_h264(ps_bitstrm, (ui4_payload_size << 3));
            break;
    }
    return (i4_status);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_parse_sei_message                                        */
/*                                                                           */
/*  Description   : This function is parses and decode SEI. Currently it's   */
/*                  not implemented fully.                                   */
/*  Inputs        : ps_dec    Decoder parameters                       */
/*                  ps_bitstrm    Bitstream                                */
/*  Globals       : None                                                     */
/*  Processing    : Parses SEI NAL units and stores the info                 */
/*  Outputs       : None                                                     */
/*  Returns       : None                                                     */
/*                                                                           */
/*  Issues        : Not implemented fully                                    */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*         06 05 2002   NS              Draft                                */
/*                                                                           */
/*****************************************************************************/

WORD32 ih264d_parse_sei_message(dec_struct_t *ps_dec,
                                dec_bit_stream_t *ps_bitstrm)
{
    UWORD32 ui4_payload_type, ui4_payload_size;
    UWORD32 u4_bits;
    WORD32 i4_status = 0;

    do
    {
        ui4_payload_type = 0;

        if(!CHECK_BITS_SUFFICIENT(ps_bitstrm, 8))
        {
            return ERROR_EOB_GETBITS_T;
        }
        u4_bits = ih264d_get_bits_h264(ps_bitstrm, 8);
        while(0xff == u4_bits && CHECK_BITS_SUFFICIENT(ps_bitstrm, 8))
        {
            u4_bits = ih264d_get_bits_h264(ps_bitstrm, 8);
            ui4_payload_type += 255;
        }
        ui4_payload_type += u4_bits;

        ui4_payload_size = 0;
        if(!CHECK_BITS_SUFFICIENT(ps_bitstrm, 8))
        {
            return ERROR_EOB_GETBITS_T;
        }
        u4_bits = ih264d_get_bits_h264(ps_bitstrm, 8);
        while(0xff == u4_bits && CHECK_BITS_SUFFICIENT(ps_bitstrm, 8))
        {
            u4_bits = ih264d_get_bits_h264(ps_bitstrm, 8);
            ui4_payload_size += 255;
        }
        ui4_payload_size += u4_bits;

        if(!CHECK_BITS_SUFFICIENT(ps_bitstrm, (ui4_payload_size << 3)))
        {
            return ERROR_EOB_GETBITS_T;
        }
        i4_status = ih264d_parse_sei_payload(ps_bitstrm, ui4_payload_type,
                                             ui4_payload_size, ps_dec);
        if(i4_status != OK)
            return i4_status;

        if(ih264d_check_byte_aligned(ps_bitstrm) == 0)
        {
            u4_bits = ih264d_get_bit_h264(ps_bitstrm);
            if(0 == u4_bits)
            {
                H264_DEC_DEBUG_PRINT("\nError in parsing SEI message");
            }
            while(0 == ih264d_check_byte_aligned(ps_bitstrm)
                            && CHECK_BITS_SUFFICIENT(ps_bitstrm, 1))
            {
                u4_bits = ih264d_get_bit_h264(ps_bitstrm);
                if(u4_bits)
                {
                    H264_DEC_DEBUG_PRINT("\nError in parsing SEI message");
                }
            }
        }
    }
    while(MORE_RBSP_DATA(ps_bitstrm));
    return (i4_status);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_export_sei_mdcv_params                            */
/*                                                                           */
/*  Description   : This function populates SEI mdcv message in              */
/*                     output structure                                      */
/*  Inputs        : ps_sei_mdcv_op pointer to sei mdcv o\p struct            */
/*                : ps_sei pointer to decoded sei params                     */
/*  Outputs       :                                                          */
/*  Returns       : returns 0 for success; -1 for failure                    */
/*                                                                           */
/*  Issues        : none                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                                                           */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_export_sei_mdcv_params(ivd_sei_decode_op_t *ps_sei_decode_op,
                                     sei *ps_sei, sei *ps_sei_export)
{
    if((ps_sei_export == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei_export->u1_sei_mdcv_params_present_flag = ps_sei->u1_sei_mdcv_params_present_flag;
    ps_sei_decode_op->u1_sei_mdcv_params_present_flag = ps_sei->u1_sei_mdcv_params_present_flag;

    if(0 == ps_sei_export->u1_sei_mdcv_params_present_flag)
    {
        memset(&ps_sei_export->s_sei_mdcv_params, 0, sizeof(sei_mdcv_params_t));
    }
    else
    {
        memcpy(&ps_sei_export->s_sei_mdcv_params, &ps_sei->s_sei_mdcv_params,
                                                    sizeof(sei_mdcv_params_t));
    }

    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_export_sei_cll_params                             */
/*                                                                           */
/*  Description   : This function populates SEI cll message in               */
/*                     output structure                                      */
/*  Inputs        : ps_sei_cll_op pointer to sei cll o\p struct              */
/*                : ps_sei pointer to decoded sei params                     */
/*  Outputs       :                                                          */
/*  Returns       : returns 0 for success; -1 for failure                    */
/*                                                                           */
/*  Issues        : none                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                                                           */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_export_sei_cll_params(ivd_sei_decode_op_t *ps_sei_decode_op,
                                    sei *ps_sei, sei *ps_sei_export)
{
    if((ps_sei_export == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei_export->u1_sei_cll_params_present_flag = ps_sei->u1_sei_cll_params_present_flag;
    ps_sei_decode_op->u1_sei_cll_params_present_flag = ps_sei->u1_sei_cll_params_present_flag;

    if(0 == ps_sei_export->u1_sei_cll_params_present_flag)
    {
        memset(&ps_sei_export->s_sei_cll_params, 0, sizeof(sei_cll_params_t));
    }
    else
    {
        memcpy(&ps_sei_export->s_sei_cll_params, &ps_sei->s_sei_cll_params,
                                                    sizeof(sei_cll_params_t));
    }
    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_export_sei_ave_params                             */
/*                                                                           */
/*  Description   : This function populates SEI ave message in               */
/*                     output structure                                      */
/*  Inputs        : ps_sei_ave_op pointer to sei ave o\p struct              */
/*                : ps_sei pointer to decoded sei params                     */
/*  Outputs       :                                                          */
/*  Returns       : returns 0 for success; -1 for failure                    */
/*                                                                           */
/*  Issues        : none                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                                                           */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_export_sei_ave_params(ivd_sei_decode_op_t *ps_sei_decode_op,
                                    sei *ps_sei, sei *ps_sei_export)
{
    if((ps_sei_export == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei_export->u1_sei_ave_params_present_flag = ps_sei->u1_sei_ave_params_present_flag;
    ps_sei_decode_op->u1_sei_ave_params_present_flag = ps_sei->u1_sei_ave_params_present_flag;

    if(0 == ps_sei_export->u1_sei_ave_params_present_flag)
    {
        memset(&ps_sei_export->s_sei_ave_params, 0, sizeof(sei_ave_params_t));
    }
    else
    {
        memcpy(&ps_sei_export->s_sei_ave_params, &ps_sei->s_sei_ave_params,
                                                    sizeof(sei_ave_params_t));
    }

    return (OK);
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : ih264d_export_sei_ccv_params                             */
/*                                                                           */
/*  Description   : This function populates SEI ccv message in               */
/*                     output structure                                      */
/*  Inputs        : ps_sei_ccv_op pointer to sei ccv o\p struct              */
/*                : ps_sei pointer to decoded sei params                     */
/*  Outputs       :                                                          */
/*  Returns       : returns 0 for success; -1 for failure                    */
/*                                                                           */
/*  Issues        : none                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                                                                           */
/*                                                                           */
/*****************************************************************************/
WORD32 ih264d_export_sei_ccv_params(ivd_sei_decode_op_t *ps_sei_decode_op,
                                    sei *ps_sei, sei *ps_sei_export)
{
    if((ps_sei_export == NULL) || (ps_sei == NULL))
    {
        return NOT_OK;
    }

    ps_sei_export->u1_sei_ccv_params_present_flag = ps_sei->u1_sei_ccv_params_present_flag;
    ps_sei_decode_op->u1_sei_ccv_params_present_flag = ps_sei->u1_sei_ccv_params_present_flag;

    if(0 == ps_sei_export->u1_sei_ccv_params_present_flag)
    {
        memset(&ps_sei_export->s_sei_ccv_params, 0, sizeof(sei_ccv_params_t));
    }
    else
    {
        memcpy(&ps_sei_export->s_sei_ccv_params, &ps_sei->s_sei_ccv_params,
                                                    sizeof(sei_ccv_params_t));
    }
    return (OK);
}