From: Xihai Zhu <xihai.zhu@amlogic.com>
Date: Tue, 15 Oct 2019 05:28:33 +0000 (-0400)
Subject: di: fix pulldown 32 enter issue  from vlsi-LiuYanling [1/1]
X-Git-Tag: hardkernel-4.9.236-104~517
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7a39b8f222cecf1031fae5c9311ccf815ff09530;p=platform%2Fkernel%2Flinux-amlogic.git

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..a502e721 100644
--- 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;