the deinterlacing issues on DM355

This is demo code for deinterlacing setting. However, it doesn't work

well. Sometimes the rows at the bottom of frame mix up. Specially when the

frame rate is more than 40 fps, it happens frequently. Are there some

limitations or special setting on DM355 for resizer? And I found the setting

of params.ipipeif_param.clk_div  affects a lot. What's the rule for the

setting?            

Thanks

Bill

    params.ipipeif_param.source                = SDRAM_YUV;

    params.ipipeif_param.hnum                  = width;

    params.ipipeif_param.vnum                  = height / 2;

    params.ipipeif_param.glob_hor_size         = width + 8 * 2;

    params.ipipeif_param.glob_ver_size         = height / 2 + 10 * 2;

    params.ipipeif_param.adofs                 = ((width * 2 * 2 + 31) &

(~31));

    params.ipipeif_param.gain                  = 0x200;

    params.ipipeif_param.clk_div               = DIVIDE_SIXTH;

    params.ipipe_dpaths_fmt                    = YUV2YUV;

    params.ipipe_vst                           = 0;

    params.ipipe_hst                           = 0;

    params.ipipe_vsz                           = height / 2 - 1;

    params.ipipe_hsz                           = width - 1;

    params.rsz_rsc_param[0].rsz_h_dif          = (int) 256.0 + 0.5;

    params.rsz_rsc_param[0].rsz_v_dif          = (int) 256.0 / 2 + 0.5;

    params.rsz_rsc_param[0].rsz_o_hsz          = width - 1;

    params.rsz_rsc_param[0].rsz_o_vsz          = height - 1;

    params.ext_mem_param[0].rsz_sdr_oft        = (width * 2 + 31) & ~31;

    params.ext_mem_param[0].rsz_sdr_ptr_e      = height;

    params.rsz_en[0]                           = ENABLE;

    params.rsz_en[1]                           = DISABLE;

    params.prefilter.pre_en                    = DISABLE;

    params.false_color_suppresion.fcs_en       = DISABLE;

    params.edge_enhancer.yee_emf               = DISABLE;

    params.rgb2yuv.yuv_adj_ctr                 = 0x20;

    params.wb.wb2_dgn                          = 0x200;

    params.wb.wb2_wg_r                         = 0x110;

    params.wb.wb2_wg_gr                        = 0xf0;

    params.wb.wb2_wg_gb                        = 0xf0;

    params.wb.wb2_wg_b                         = 0x130;

    hSmooth->bufSize = width * height * 2;

    if(ioctl(fd, IPIPE_SET_PARAM, &params) == -1) {

        printf("Failed IPIPE_SET_PARAM\n");

        return SMOOTH_FAILURE;

    }