/src/libavc/decoder/svc/isvcd_thread_parse_decode.c

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/******************************************************************************
 *
 * 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_thread_parse_decode.c
 *
 * @brief
 *  Contains routines that for multi-thread decoder
 *
 * @author
 *  Kishore
 *
 * @remarks
 *  None
 *
 *******************************************************************************
 */

#include <string.h>
#include "ih264d_error_handler.h"
#include "ih264d_debug.h"
#include "ithread.h"
#include "ih264d_defs.h"
#include "ih264d_debug.h"
#include "ih264d_tables.h"
#include "isvcd_structs.h"
#include "ih264d_defs.h"
#include "ih264d_mb_utils.h"
#include "ih264d_thread_parse_decode.h"
#include "ih264d_inter_pred.h"
#include "ih264d_process_pslice.h"
#include "isvcd_process_epslice.h"
#include "ih264d_process_intra_mb.h"
#include "ih264d_deblocking.h"
#include "ih264d_format_conv.h"
#include "isvcd_thread_parse_decode.h"

/*****************************************************************************/
/*                                                                           */
/*  Function Name : isvcd_decode_recon_tfr_nmb_thread                        */
/*                                                                           */
/*  Description   :                                                          */
/*                :                                                          */
/*                :                                                          */
/*  Inputs        :                                                          */
/*  Processing    :Only for Target Layer processing                          */
/*                                                                           */
/*  Outputs       :                                                          */
/*  Returns       : None                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                      ITTIAM                                               */
/*****************************************************************************/
WORD32 isvcd_decode_recon_tfr_nmb_thread(svc_dec_lyr_struct_t *ps_svc_lyr_dec, UWORD8 u1_num_mbs,
                                         UWORD8 u1_num_mbs_next, UWORD8 u1_end_of_row)
{
    WORD32 i, j;
    dec_mb_info_t *ps_cur_mb_info;
    dec_svc_mb_info_t *ps_svc_cur_mb_info;
    dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
    const UWORD32 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
    UWORD32 u1_slice_type, u1_B;
    WORD32 u1_skip_th;
    UWORD32 u1_ipcm_th;
    UWORD32 u4_cond;
    UWORD16 u2_slice_num, u2_cur_dec_mb_num;
    UWORD32 u4_mb_num;
    WORD32 nop_cnt = 8 * 128;
    UWORD16 *pu2_res_luma_csbp;
    WORD32 ret;
    u1_slice_type = ps_dec->ps_decode_cur_slice->slice_type;

    u1_B = (u1_slice_type == B_SLICE);
    u1_skip_th = ((u1_slice_type != I_SLICE) ? (u1_B ? B_8x8 : PRED_8x8R0) : -1);
    u1_ipcm_th = ((u1_slice_type != I_SLICE) ? (u1_B ? 23 : 5) : 0);
    u2_cur_dec_mb_num = ps_dec->cur_dec_mb_num;

    while(1)
    {
        UWORD32 u4_max_mb =
            (UWORD32) (ps_dec->i2_dec_thread_mb_y + (1 << u1_mbaff)) * ps_dec->u2_frm_wd_in_mbs - 1;
        u4_mb_num = u2_cur_dec_mb_num;
        /*introducing 1 MB delay*/
        u4_mb_num = MIN(u4_mb_num + u1_num_mbs + 1, u4_max_mb);

        CHECK_MB_MAP_BYTE(u4_mb_num, ps_dec->pu1_dec_mb_map, u4_cond);
        if(u4_cond)
        {
            break;
        }
        else
        {
            if(nop_cnt > 0)
            {
                nop_cnt -= 128;
                NOP(128);
            }
            else
            {
                if(ps_dec->u4_output_present && (2 == ps_dec->u4_num_cores) &&
                   (ps_dec->u4_fmt_conv_cur_row < ps_dec->s_disp_frame_info.u4_y_ht))
                {
                    ps_dec->u4_fmt_conv_num_rows =
                        MIN(FMT_CONV_NUM_ROWS,
                            (ps_dec->s_disp_frame_info.u4_y_ht - ps_dec->u4_fmt_conv_cur_row));
                    ih264d_format_convert(ps_dec, &(ps_dec->s_disp_op), ps_dec->u4_fmt_conv_cur_row,
                                          ps_dec->u4_fmt_conv_num_rows);
                    ps_dec->u4_fmt_conv_cur_row += ps_dec->u4_fmt_conv_num_rows;
                }
                else
                {
                    nop_cnt = 8 * 128;
                    ithread_yield();
                }
                if(1 == ps_svc_lyr_dec->u1_error_in_cur_frame)
                {
                    return NOT_OK;
                }
            }
        }
    }

    /* N Mb MC Loop */
    for(i = 0; i < u1_num_mbs; i++)
    {
        u4_mb_num = u2_cur_dec_mb_num;
        GET_SLICE_NUM_MAP(ps_dec->pu2_slice_num_map, u2_cur_dec_mb_num, u2_slice_num);

        if(u2_slice_num != ps_dec->u2_cur_slice_num_dec_thread)
        {
            ps_dec->u4_cur_slice_decode_done = 1;
            break;
        }

        ps_cur_mb_info = &ps_dec->ps_frm_mb_info[u2_cur_dec_mb_num];

        ps_dec->u4_dma_buf_idx = 0;
        ps_dec->u4_pred_info_idx = 0;

        /*Pointer assignment for Residual NNZ */
        pu2_res_luma_csbp = ps_svc_lyr_dec->pu2_frm_res_luma_csbp + ps_cur_mb_info->u2_mbx;
        pu2_res_luma_csbp += ps_cur_mb_info->u2_mby * ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride;

        if(ps_cur_mb_info->u1_mb_type <= u1_skip_th)
        {
            WORD32 pred_cnt = 0;
            pred_info_pkd_t *ps_pred_pkd;
            UWORD32 u4_pred_info_pkd_idx;

            u4_pred_info_pkd_idx = ps_cur_mb_info->u4_pred_info_pkd_idx;

            while(pred_cnt < ps_cur_mb_info->u1_num_pred_parts)
            {
                ps_pred_pkd = ps_dec->ps_pred_pkd + u4_pred_info_pkd_idx;

                ps_dec->p_form_mb_part_info_thread(ps_pred_pkd, ps_dec, ps_cur_mb_info->u2_mbx,
                                                   ps_cur_mb_info->u2_mby, (i >> u1_mbaff),
                                                   ps_cur_mb_info);

                u4_pred_info_pkd_idx++;
                pred_cnt++;
            }
            ps_dec->p_mc_dec_thread(ps_dec, ps_cur_mb_info);
        }
        else if(ps_cur_mb_info->u1_mb_type == MB_SKIP)
        {
            WORD32 pred_cnt = 0;
            pred_info_pkd_t *ps_pred_pkd;
            UWORD32 u4_pred_info_pkd_idx;

            u4_pred_info_pkd_idx = ps_cur_mb_info->u4_pred_info_pkd_idx;

            while(pred_cnt < ps_cur_mb_info->u1_num_pred_parts)
            {
                ps_pred_pkd = ps_dec->ps_pred_pkd + u4_pred_info_pkd_idx;

                ps_dec->p_form_mb_part_info_thread(ps_pred_pkd, ps_dec, ps_cur_mb_info->u2_mbx,
                                                   ps_cur_mb_info->u2_mby, (i >> u1_mbaff),
                                                   ps_cur_mb_info);

                u4_pred_info_pkd_idx++;
                pred_cnt++;
            }
            /* Decode MB skip */
            ps_dec->p_mc_dec_thread(ps_dec, ps_cur_mb_info);

            *pu2_res_luma_csbp = 0;
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb =
                ps_svc_lyr_dec->ps_inter_lyr_mb_prms_frm_start + ps_cur_mb_info->u2_mbx +
                (ps_svc_lyr_dec->u2_inter_lyr_mb_prms_stride * (ps_cur_mb_info->u2_mby));
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb->i1_mb_mode = SVC_INTER_MB;
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb->i1_tx_size =
                ps_cur_mb_info->u1_tran_form8x8;
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb->u2_luma_nnz = 0;
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb->u1_chroma_nnz = 0;
        }

        u2_cur_dec_mb_num++;
    }

    /* N Mb IQ IT RECON  Loop */
    for(j = 0; j < i; j++)
    {
        ps_cur_mb_info = &ps_dec->ps_frm_mb_info[ps_dec->cur_dec_mb_num];
        ps_svc_cur_mb_info = &ps_svc_lyr_dec->ps_svc_frm_mb_info[ps_dec->cur_dec_mb_num];

        if(NULL == ps_cur_mb_info->ps_curmb)
        {
            return NOT_OK;
        }

        /*Pointer assignment for Residual NNZ */
        pu2_res_luma_csbp = ps_svc_lyr_dec->pu2_frm_res_luma_csbp + ps_cur_mb_info->u2_mbx;
        pu2_res_luma_csbp += ps_cur_mb_info->u2_mby * ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride;

        ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb =
            ps_svc_lyr_dec->ps_inter_lyr_mb_prms_frm_start + ps_cur_mb_info->u2_mbx +
            (ps_svc_lyr_dec->u2_inter_lyr_mb_prms_stride * (ps_cur_mb_info->u2_mby));

        ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb->i1_slice_id = (WORD8) ps_dec->u2_cur_slice_num;

        if((ps_dec->u4_num_cores == 2) || !ps_dec->i1_recon_in_thread3_flag)
        {
            if(ps_cur_mb_info->u1_mb_type <= u1_skip_th)
            {
                {
                    /* inter intra pred generation */
                    if(SVCD_FALSE == ps_svc_lyr_dec->u1_dyadic_flag)
                    {
                        ret = isvcd_process_ii_mb(ps_svc_lyr_dec, ps_cur_mb_info,
                                                  ps_svc_cur_mb_info, j);
                        if(ret != OK) return ret;
                    }
                    if(0 == ps_svc_cur_mb_info->u1_residual_prediction_flag)
                    {
                        /* IT + Recon */
                        ih264d_process_inter_mb(ps_dec, ps_cur_mb_info, j);
                        isvcd_update_inter_mb_inter_layer_info(ps_svc_lyr_dec, ps_cur_mb_info, 0);
                        *pu2_res_luma_csbp = ps_cur_mb_info->u2_luma_csbp;
                    }
                    else
                    {
                        /* IT + Residual + Recon */
                        ret = isvcd_process_inter_mb_rsd_pred_target_lyr(
                            ps_svc_lyr_dec, ps_cur_mb_info, j, 0, pu2_res_luma_csbp);
                        if(ret != OK) return ret;
                    }
                }
            }

            else if((ps_cur_mb_info->u1_mb_type != MB_SKIP) &&
                    (ps_cur_mb_info->u1_mb_type != MB_INFER))
            {
                if((u1_ipcm_th + 25) != ps_cur_mb_info->u1_mb_type)
                {
                    ps_cur_mb_info->u1_mb_type -= (u1_skip_th + 1);
                    ih264d_process_intra_mb(ps_dec, ps_cur_mb_info, j);
                    isvcd_update_intra_mb_inter_layer_info(ps_svc_lyr_dec, ps_cur_mb_info);
                }
                else
                {
                    isvcd_update_ipcm_mb_inter_layer_info(ps_svc_lyr_dec, ps_cur_mb_info);
                }
                *pu2_res_luma_csbp = 0;
            }
            else if(ps_cur_mb_info->u1_mb_type == MB_INFER)
            {
                /* inter layer intra prediction : intra upsample, IQ, IT ,deblock */
                {
                    /* Intra resample for IBL mode */
                    ret = isvcd_process_ibl_mb(ps_svc_lyr_dec, ps_cur_mb_info, j, 0);
                    if(ret != OK) return ret;
                    /* Pass intra resample as pred to Recon generation */
                    ih264d_process_inter_mb(ps_dec, ps_cur_mb_info, j);
                    isvcd_update_inter_mb_inter_layer_info(ps_svc_lyr_dec, ps_cur_mb_info, 1);
                    *pu2_res_luma_csbp = ps_cur_mb_info->u2_luma_csbp;
                }
                ps_dec->pi1_left_pred_mode[0] = DC;
                ps_dec->pi1_left_pred_mode[1] = DC;
                ps_dec->pi1_left_pred_mode[2] = DC;
                ps_dec->pi1_left_pred_mode[3] = DC;

                ps_cur_mb_info->ps_curmb->pi1_intrapredmodes[0] = DC;
                ps_cur_mb_info->ps_curmb->pi1_intrapredmodes[1] = DC;
                ps_cur_mb_info->ps_curmb->pi1_intrapredmodes[2] = DC;
                ps_cur_mb_info->ps_curmb->pi1_intrapredmodes[3] = DC;

                isvcd_update_ibl_mb_inter_layer_info(ps_svc_lyr_dec, ps_cur_mb_info);
            }

            if(ps_dec->u4_use_intrapred_line_copy == 1)
                ih264d_copy_intra_pred_line(ps_dec, ps_cur_mb_info, j);
        }

        DATA_SYNC();

        u4_mb_num = ps_cur_mb_info->u2_mbx + ps_dec->u2_frm_wd_in_mbs * ps_cur_mb_info->u2_mby;
        UPDATE_MB_MAP_MBNUM_BYTE(ps_dec->pu1_recon_mb_map, u4_mb_num);
        ps_dec->cur_dec_mb_num++;
    }

    /*N MB deblocking*/
    if(ps_dec->u4_nmb_deblk == 1)
    {
        UWORD32 u4_wd_y, u4_wd_uv;
        tfr_ctxt_t *ps_tfr_cxt = &(ps_dec->s_tran_addrecon);
        UWORD8 u1_field_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag;
        const WORD32 i4_cb_qp_idx_ofst = ps_dec->ps_cur_pps->i1_chroma_qp_index_offset;
        const WORD32 i4_cr_qp_idx_ofst = ps_dec->ps_cur_pps->i1_second_chroma_qp_index_offset;

        u4_wd_y = ps_dec->u2_frm_wd_y << u1_field_pic_flag;
        u4_wd_uv = ps_dec->u2_frm_wd_uv << u1_field_pic_flag;

        ps_cur_mb_info = &ps_dec->ps_frm_mb_info[ps_dec->u4_cur_deblk_mb_num];

        ps_dec->u4_deblk_mb_x = ps_cur_mb_info->u2_mbx;
        ps_dec->u4_deblk_mb_y = ps_cur_mb_info->u2_mby;

        for(j = 0; j < i; j++)
        {
            ih264d_deblock_mb_nonmbaff(ps_dec, ps_tfr_cxt, i4_cb_qp_idx_ofst, i4_cr_qp_idx_ofst,
                                       u4_wd_y, u4_wd_uv);
        }
    }

    /*handle the last mb in picture case*/
    if(ps_dec->cur_dec_mb_num > ps_dec->ps_cur_sps->u2_max_mb_addr)
        ps_dec->u4_cur_slice_decode_done = 1;

    if(i != u1_num_mbs)
    {
        u1_end_of_row = 0;
        /*Number of MB's left in row*/
        u1_num_mbs_next = u1_num_mbs_next + ((u1_num_mbs - i) >> u1_mbaff);
    }

    ih264d_decode_tfr_nmb(ps_dec, (i), u1_num_mbs_next, u1_end_of_row);

    return OK;
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : isvcd_decode_slice_thread                                */
/*                                                                           */
/*  Description   :                                                          */
/*                :                                                          */
/*                :                                                          */
/*  Inputs        :                                                          */
/*  Processing    :                                                          */
/*                                                                           */
/*  Outputs       :                                                          */
/*  Returns       : 0 on success                                             */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                      ITTIAM                                               */
/*****************************************************************************/
WORD32 isvcd_decode_slice_thread(svc_dec_lyr_struct_t *ps_svc_lyr_dec)
{
    UWORD8 u1_num_mbs_next, u1_num_mbsleft, u1_end_of_row = 0;
    dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
    const UWORD32 i2_pic_wdin_mbs = ps_dec->u2_frm_wd_in_mbs;
    UWORD8 u1_mbaff, u1_num_mbs;

    UWORD16 u2_first_mb_in_slice;
    UWORD16 i16_mb_x, i16_mb_y;
    UWORD8 u1_field_pic;
    UWORD32 u4_frame_stride, x_offset, y_offset;
    WORD32 ret;
    tfr_ctxt_t *ps_trns_addr;

    /*check for mb map of first mb in slice to ensure slice header is parsed*/
    while(1)
    {
        UWORD32 u4_mb_num = ps_dec->cur_dec_mb_num;
        UWORD32 u4_cond = 0;
        WORD32 nop_cnt = 8 * 128;
        CHECK_MB_MAP_BYTE(u4_mb_num, ps_dec->pu1_dec_mb_map, u4_cond);
        if(u4_cond)
        {
            break;
        }
        else
        {
            if(nop_cnt > 0)
            {
                nop_cnt -= 128;
                NOP(128);
            }
            else if(ps_dec->u4_output_present && (2 == ps_dec->u4_num_cores) &&
                    (ps_dec->u4_fmt_conv_cur_row < ps_dec->s_disp_frame_info.u4_y_ht))
            {
                ps_dec->u4_fmt_conv_num_rows =
                    MIN(FMT_CONV_NUM_ROWS,
                        (ps_dec->s_disp_frame_info.u4_y_ht - ps_dec->u4_fmt_conv_cur_row));
                ih264d_format_convert(ps_dec, &(ps_dec->s_disp_op), ps_dec->u4_fmt_conv_cur_row,
                                      ps_dec->u4_fmt_conv_num_rows);
                ps_dec->u4_fmt_conv_cur_row += ps_dec->u4_fmt_conv_num_rows;
            }
            else
            {
                nop_cnt = 8 * 128;
                ithread_yield();
            }
            if(1 == ps_svc_lyr_dec->u1_error_in_cur_frame)
            {
                return NOT_OK;
            }
            DEBUG_THREADS_PRINTF(
                "waiting for mb mapcur_dec_mb_num = %d,ps_dec->u2_cur_mb_addr  = "
                "%d\n",
                u2_cur_dec_mb_num, ps_dec->u2_cur_mb_addr);
        }
    }

    u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag;
    u2_first_mb_in_slice = ps_dec->ps_decode_cur_slice->u4_first_mb_in_slice;
    i16_mb_x = MOD(u2_first_mb_in_slice, i2_pic_wdin_mbs);
    i16_mb_y = DIV(u2_first_mb_in_slice, i2_pic_wdin_mbs);
    i16_mb_y <<= u1_mbaff;
    ps_dec->i2_dec_thread_mb_y = i16_mb_y;
    ps_dec->cur_dec_mb_num = u2_first_mb_in_slice << u1_mbaff;

    if((ps_dec->u4_num_cores == 2) || !ps_dec->i1_recon_in_thread3_flag)
    {
        ps_dec->pv_proc_tu_coeff_data =
            (void *) ps_dec->ps_decode_cur_slice->pv_tu_coeff_data_start;
    }

    // recalculate recon pointers
    u1_field_pic = ps_dec->ps_cur_slice->u1_field_pic_flag;
    u4_frame_stride = ps_dec->u2_frm_wd_y << u1_field_pic;
    x_offset = i16_mb_x << 4;
    y_offset = (i16_mb_y * u4_frame_stride) << 4;

    ps_trns_addr = &(ps_dec->s_tran_addrecon);

    ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1 + x_offset + y_offset;

    u4_frame_stride = ps_dec->u2_frm_wd_uv << u1_field_pic;
    x_offset >>= 1;
    y_offset = (i16_mb_y * u4_frame_stride) << 3;
    x_offset *= YUV420SP_FACTOR;

    ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2 + x_offset + y_offset;
    ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3 + x_offset + y_offset;

    ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y;
    ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u;
    ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v;

    /* Initialise MC and formMbPartInfo fn ptrs one time based on profile_idc */
    {
        ps_dec->p_mc_dec_thread = ih264d_motion_compensate_bp;
        ps_dec->p_form_mb_part_info_thread = ih264d_form_mb_part_info_bp;
    }
    {
        UWORD8 uc_nofield_nombaff;
        uc_nofield_nombaff = ((ps_dec->ps_cur_slice->u1_field_pic_flag == 0) &&
                              (ps_dec->ps_cur_slice->u1_mbaff_frame_flag == 0) &&
                              (ps_dec->ps_decode_cur_slice->slice_type != B_SLICE) &&
                              (ps_dec->ps_cur_pps->u1_wted_pred_flag == 0));

        if(uc_nofield_nombaff == 0)
        {
            ps_dec->p_mc_dec_thread = ih264d_motion_compensate_mp;
            ps_dec->p_form_mb_part_info_thread = ih264d_form_mb_part_info_mp;
        }
    }

    ps_dec->u4_cur_slice_decode_done = 0;

    while(ps_dec->u4_cur_slice_decode_done != 1)
    {
        u1_num_mbsleft = ((i2_pic_wdin_mbs - i16_mb_x) << u1_mbaff);

        if(u1_num_mbsleft <= ps_dec->u1_recon_mb_grp)
        {
            u1_num_mbs = u1_num_mbsleft;

            /*Indicate number of mb's left in a row*/
            u1_num_mbs_next = 0;
            u1_end_of_row = 1;
            i16_mb_x = 0;
        }
        else
        {
            u1_num_mbs = ps_dec->u1_recon_mb_grp;

            /*Indicate number of mb's left in a row*/
            u1_num_mbs_next = i2_pic_wdin_mbs - i16_mb_x - (ps_dec->u1_recon_mb_grp >> u1_mbaff);
            i16_mb_x += (u1_num_mbs >> u1_mbaff);
            u1_end_of_row = 0;
        }
        if(ps_svc_lyr_dec->u1_layer_identifier == TARGET_LAYER)
        {
            ret = isvcd_decode_recon_tfr_nmb_thread(ps_svc_lyr_dec, u1_num_mbs, u1_num_mbs_next,
                                                    u1_end_of_row);
        }
        if(ret != OK) return ret;
    }
    return OK;
}

/*****************************************************************************/
/*                                                                           */
/*  Function Name : isvcd_decode_picture_thread                              */
/*                                                                           */
/*  Description   :                                                          */
/*                :                                                          */
/*                :                                                          */
/*  Inputs        :                                                          */
/*  Processing    :                                                          */
/*                                                                           */
/*  Outputs       :                                                          */
/*  Returns       : None                                                     */
/*                                                                           */
/*  Revision History:                                                        */
/*                                                                           */
/*         DD MM YYYY   Author(s)       Changes (Describe the changes made)  */
/*                      ITTIAM                                               */
/*****************************************************************************/
void isvcd_decode_picture_thread(svc_dec_lyr_struct_t *ps_svc_lyr_dec)
{
    dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
    WORD32 ret;
    ithread_set_name("isvcd_decode_picture_thread");
    while(1)
    {
#ifdef KEEP_THREADS_ACTIVE
        ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[0]);
        if(OK != ret) break;

        while(ps_dec->ai4_process_start[0] != PROC_START)
        {
            ithread_cond_wait(ps_dec->apv_proc_start_condition[0], ps_dec->apv_proc_start_mutex[0]);
        }
        ps_dec->ai4_process_start[0] = PROC_IN_PROGRESS;

        ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[0]);
        if(OK != ret || ps_dec->i4_break_threads == 1) break;
#endif
        while(1)
        {
            /*Complete all writes before processing next slice*/

            DEBUG_THREADS_PRINTF(" Entering decode slice svc ext\n");

            ret = isvcd_decode_slice_thread(ps_svc_lyr_dec);
            if(OK != ret) break;
            DEBUG_THREADS_PRINTF(" Exit  isvcd_decode_slice_thread\n");

            if(ps_dec->cur_dec_mb_num > ps_dec->ps_cur_sps->u2_max_mb_addr)
            {
                /*Last slice in frame*/
                break;
            }
            else
            {
                ps_dec->ps_decode_cur_slice++;
                ps_dec->u2_cur_slice_num_dec_thread++;
            }
        }
        if(ps_dec->u4_output_present && (2 == ps_dec->u4_num_cores) &&
           (ps_dec->u4_fmt_conv_cur_row < ps_dec->s_disp_frame_info.u4_y_ht))
        {
            ps_dec->u4_fmt_conv_num_rows =
                (ps_dec->s_disp_frame_info.u4_y_ht - ps_dec->u4_fmt_conv_cur_row);
            ih264d_format_convert(ps_dec, &(ps_dec->s_disp_op), ps_dec->u4_fmt_conv_cur_row,
                                  ps_dec->u4_fmt_conv_num_rows);
            ps_dec->u4_fmt_conv_cur_row += ps_dec->u4_fmt_conv_num_rows;
        }
#ifdef KEEP_THREADS_ACTIVE
        ret = ithread_mutex_lock(ps_dec->apv_proc_done_mutex[0]);
        if(OK != ret) break;

        ps_dec->ai4_process_done[0] = PROC_DONE;
        ithread_cond_signal(ps_dec->apv_proc_done_condition[0]);

        ret = ithread_mutex_unlock(ps_dec->apv_proc_done_mutex[0]);
        if(OK != ret) break;
#else
        break;
#endif
    }
}

Coverage Report

Created: 2025-07-11 06:39