di: fix pulldown 32 enter issue from vlsi-LiuYanling [1/1]

PD#SWPL-11692

Proble:
wrongly enter film 32 detection

Solution:
adjust the threshold

Verify:
tl1

Change-Id: Icb012a5104eebaff8634f5183a198e19167fe7b2
Signed-off-by: Xihai Zhu <xihai.zhu@amlogic.com>

diff --git a/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c b/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
index f3172c3..a502e72 100644 (file)
--- a/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
+++ b/drivers/amlogic/media/deinterlace/film_mode_fmw/film_fw1.c
@@ -235,6 +235,29 @@ static int dif01_ratio = 10;
 module_param(dif01_ratio,  int, 0644);
 MODULE_PARM_DESC(dif01_ratio, "dif01_ratio");
 
+static int nflagch4_ratio = 1;
+module_param(nflagch4_ratio,  int, 0644);
+MODULE_PARM_DESC(nflagch4_ratio, "nflagch4_ratio");
+
+static int nflagch5_ratio = 2;
+module_param(nflagch5_ratio,  int, 0644);
+MODULE_PARM_DESC(nflagch5_ratio, "nflagch5_ratio");
+
+static int nflagch4_th = 0;
+module_param(nflagch4_th,  int, 0644);
+MODULE_PARM_DESC(nflagch4_th, "nflagch4_th");
+
+static int nflagch5_th = 0;
+module_param(nflagch5_th,  int, 0644);
+MODULE_PARM_DESC(nflagch5_th, "nflagch5_th");
+
+static int dif02_flag = 1;
+module_param(dif02_flag,  int, 0644);
+MODULE_PARM_DESC(dif02_flag, "dif02_flag");
+
+static int dif02_ratio = 20;
+module_param(dif02_ratio,  int, 0644);
+MODULE_PARM_DESC(dif02_ratio, "dif02_ratio");
 
 static int flm22_force;
 
@@ -697,6 +720,9 @@ int Flm32DetSft(struct sFlmDatSt *pRDat, int *nDif02,
        int nFlgChk1 = 0;
        int nFlgChk2 = 0;
        int nFlgChk3 = 0; /* for Mit32VHLine */
+       int nFlgChk4 = 0;
+       int nFlgChk5 = 0;
+       int nMean = 0;
 
        int luma_avg = 0;
        int flm32_dif02_gap = 0;
@@ -819,6 +845,35 @@ int Flm32DetSft(struct sFlmDatSt *pRDat, int *nDif02,
                nFlgChk1 = 0;
                nFlgChk2 = 0;
        }
+       //nFlgChk4/5 large dif change quit mode
+       if (
+               pFlg32[HISDETNUM - 1] > 1 && (dif02_flag ||
+               nDif02[HISDIFNUM - 1] > (1 << dif02_ratio))) {
+               nFlgChk4 =  nDif02[HISDIFNUM - 1] - nDif02[HISDIFNUM - 6];
+               if (nFlgChk4 < 0)
+                       nFlgChk4 = -nFlgChk4;
+               nFlgChk4 = nFlgChk4;
+               nMean = (nDif02[HISDIFNUM - 1] + nDif01[HISDIFNUM - 6]) / 2;
+               nFlgChk4 = nflagch4_ratio * nFlgChk4 / nMean;
+       } else {
+               nFlgChk4 = 0;
+       }
+       if (
+               pFlg32[HISDETNUM - 1] == 1 ||
+               pFlg32[HISDETNUM - 1] == 2 ||
+               pFlg32[HISDETNUM - 1] == 4) {
+               nFlgChk5 =  nDif01[HISDIFNUM - 1] - nDif01[HISDIFNUM - 6];
+               if (nFlgChk5 < 0)
+                       nFlgChk5 = -nFlgChk5;
+               nMean = (nDif01[HISDIFNUM - 1] + nDif01[HISDIFNUM - 6]) / 2;
+               nFlgChk5 = nflagch5_ratio * nFlgChk5 / nMean;
+       } else {
+               nFlgChk5 = 0;
+       }
+       if (prt_flg)
+               sprintf(debug_str + strlen(debug_str),
+                       "nFlgChk4/5=(%2d,%2d)\n",
+                       nFlgChk4, nFlgChk5);
 
        nT2 = 5 * nDif02[HISDIFNUM - 1] / (nMn + sFrmDifLgTDif + 1);
        nT2 = nT2>>1;
@@ -839,7 +894,9 @@ int Flm32DetSft(struct sFlmDatSt *pRDat, int *nDif02,
        if (nSTP > 16)
                nSTP = 16;
                /*patch for dark scenes don't into pulldown32 by vlsi yanling*/
-       if (((nMx + nMn/2) / (nMn + 1)) < flm32_dif02_gap)
+       if (
+               ((nMx + nMn / 2) / (nMn + 1)) < flm32_dif02_gap &&
+               pFlg32[HISDETNUM - 1] > 1)
                nSTP = 0;
        /*---------------*/
        for (nT0 = 1; nT0 < HISDETNUM; nT0++) {
@@ -913,6 +970,9 @@ int Flm32DetSft(struct sFlmDatSt *pRDat, int *nDif02,
                }
 
                nFlg12[nT0] = ((nSTP + 8) >> 4);
+
+               if (nT0 == 5 && nMIX == 1 && nFlg01[nT0] == 0)
+                       nFlg12[nT0] = 0;
        }
        /* -------------------------------------------- */
 
@@ -964,7 +1024,9 @@ int Flm32DetSft(struct sFlmDatSt *pRDat, int *nDif02,
                (nFlgChk3 > flm32_ck13_rtn))
                || (nFlgChk2 > flm32_chk2_rtn)
                || ((pFlg32[HISDETNUM-1] == 4) &&
-               (nFlgChk3 > flm32_chk3_rtn))) {
+               (nFlgChk3 > flm32_chk3_rtn)) ||
+               (nFlgChk4 > nflagch4_th ||
+                nFlgChk5 > nflagch5_th)) {
                pRDat->pMod32[HISDETNUM - 1] = 0;
                pRDat->pFlg32[HISDETNUM - 1] = 0;